Blind men should pay attention to the kidney

The past mentioned sexual dysfunction especially common impotence, thought is kidney empty, treatment with mainly on the kidney strong sun, actually this is a mistake.

In modern medicine fully development today, sexual health care already from the traditional renal over everything from pathology expanded to comprehensive treatment Angle. Michael essien, said dr who introduced in crowd sexual dysfunction caused by diabetes, cardioascular disease of 33%, 25% of the vessels and nerves injured 10%, endocrine diseases 6%, medication side-effects, 8 percent, trauma 8 percent, drugs account for 7%, other multiple sclerosis 3%. But because of the influence of traditional custom, the man once had sexual dysfunction kidney disease, thought, so that many people to abuse "aphrodisiac".

But many take aphrodisiac, although a solution not only so quick, but cannot be improved and sickness could trigger your breath born sore, gum bleeds, thirsty side effect, go down for a long time, still can inhibit the male hypothalamus - the pituitary gland - testicular shaft excitement, causing symptoms worse. In addition also will make the male prostate hypertrophy or prostate cancer heavier. And for those who caused by hypertension, diabetes, coronary heart disease by sexual dysfunction patients, taking aphrodisiac, even after serious accident, life-threatening.

Dr. Michael essien, sexual dysfunction patients can't pointed out self-health care and blindly shall promptly consultation by a doctor to find out the etiology, use drug to disease again. Because on sexual dysfunction patients more than 50% of people are already happened, at this moment if only organic lesion take health care products, aphrodisiac, not only do not rise to health care treatment effect, even as the remedy is worse than the.

Sex by affection first, a real man standard also on pure sex not only measured ZiQing lust can cause sexual function, the decline. And the correct sexual concept and scientific sex care can make the person is in physical and psychological forever young and virility. 

Multimedia Terminal

Multimedia terminal refers to the comprehensive, alternation, with multimedia communication terminal synchronicity.

A multimedia system through multimedia terminal user of multimedia information on access, these terminal connected through high-speed communication network, sharing the multimedia information.

We know that communications terminal have many types, telephone, fax machine, teletype, telegraph, videophone, visual graphic terminal and ISDN multi-function terminal. Multimedia terminal compared these terminal has the following features:

(1) comprehensive: multimedia terminal can at least two or more media to (such as voice coding, stylistic coding or image coding etc) for processing.

(2) interactivity: namely terminal and the interactive communication skills. System

(3) synchronicities: in multimedia terminal display images, sounds, document is synchronous way work. Now the personal computer multimedia household can store data, graphics, sound and image is an organic whole, can read the handwriting to text, translation voice commands, and a series of family life of data management. Future multimedia terminal will be high definition TV.  

ASON ((Automatic Switched Optical Network)

Because ASON ((Automatic Switched Optical Network) is structure in all kinds of transmission technology, namely above in transmission plane SDH, optical transmission network (otns) increased independent control plane above, so it supports current transmission network can provide various rate and different signal characteristics (such as format, bitrate, etc) business. In ASON network can provide customer nets yuan between two fixed bandwidth is the transmission channel, define the input in optical network access point and output access point between.

Business types

ASON business in the following aspects:

SDH business, support g. 707 definition of SDH connection particles VC - n and VC - n - Xv;

Otns business, support g. 709 defined otns connection ODUk and ODUk - particles n-substituted Xv; Transparent or opaque wavelength operations;

10 MB/s, 100Mb/s, 1Gb/s and 10Gb/s Ethernet operations;

Based on optical fiber connection (FICON), enterprise system connection (ESCON) and fibre channel (FC) of storage area network (SAN) business.

For new business types ASON with expansibility. ASON can support multiple types of business model, each business model has its own business attributes, target market and business management requirements.

Business connection topological type

In order to support enhanced business (such as bandwidth on-demand, diversity circuit ZhiPei and bind connection, etc), ASON should support calls and connection control of separation. Call and connection control of separation can reduce the intermediate connection control node overmuch call control information, remove the decoding and explain the burden of news. ASON support connection topological types include: point-to-point connections, one-way two-way point-to-point connections, one-way point to a multipoint connection.

Due to call and call can connect separate, a corresponding multiple connections, currently two-way point-to-point connection is the most main connection.

Business connection type

ASON network support three business network connection type: permanent connection (PC), exchange connection (SC), soft permanent connection (SPC).

PC and SPC connections are launched by the management of the plane connecting management. The difference between the PC and SPC in connection is light inside network using net command or real-time signal, the two methods are initiated by operators build business connections.

SC connection through UNI signaling interface, user's business request initiated by controlling the plane (including signaling agent) send the UNI, namely the operators to establish business connection user directly launched.

Business level

The current level cannot according to formulate the corresponding service level price policy, causing the waste of resources disposition, and can be easily ASON network of business circuit priority division, thus providing a service agreement (SLA) transmission business circuit. The reliability of customers for different connections have different demands that can use "business level" to describe. In ASON network, business level mainly through mapped to different recovery, protect options and related links to realize the priority, for example establishing priority, keep priority (free), whether can advance recovery priority.

Establish priority mainly refers to the response time and build a business in Japan, respectively within hours or minutes to establish business connections.

Keep priority (whether can spare) is mainly refers to advance in the system when other system fault appears would be idle out of business, more important bearing business connection itself have protection.

Restore priority is to consider system malfunction recovery time and restore level (such as restoring business percentage).

Will a single business level mapped to a series of protection and recovery options, each operators have different choice. Control level based on each connection link support, and the priority set support will bandwidth resources reserve as posterior purpose and failure to repair recovery by normalization. General support business connection level include: special connection (1 + 1 and 1:1), sharing protection (1: N and M: N), don't protect (in the main electricity transmission), don't protect road in protecting circuit business (transmit), etc.

Business access method

In order to make business access ASON network, user first need to send plane and the establishment of physical connection operator network. According to the position of operator network and customers, business access can take inning access (optical network nets yuan and client nets yuan in a ground), direct remote access (with special links to client), via access subnet distal access and double to access.

ASON must support double to access. For the same customer equipment with double to access when should not require multiple addresses, double to access is a special case of access. Adopt double to access the main purpose is to enhance network survivability, when a access failed, the customer's business can rely on another access without interruption. Customer equipment can double to approach (two different path) access to the core nets/operator.

From a security perspective, the network resources should avoid of unauthorized access, business access control is to limit and control entity attempt to access to network resources, especially through the mechanism of network node interface external and UNI (E - NNI). Connection admission control (CAC) function should support the following safety features.

1. CAC applies to all through the UNI (or E - NNI) access to network resources entities. CAC including authentication function, to prevent entity who pretend to be another entity fraud by pretending to use network resources. Has the certification entity will according to configurable strategy management is given a business access level.

2. UNI and network nodes on the interface (NNI) should provide the mechanism to guarantee the customer certification and link information integrity, such as the link establishment, dismantling and signaling information, to be used to connect to the administrative and prevent business invasion. UNI and E - should also include NNI based on the application of CAC billing info, prevent connection management information forged.

3. Each entity may be authorized by the operators management strategy use of network resources. 

Four material man health needs it

Four kinds of minerals in the prevention of men are predisposed to illness extremely helpful, such as elevated cholesterol, high blood pressure, coronary heart disease, stroke and certain cancers and gallstones, etc. Men need most minerals are chromium, magnesium, zinc, boron four categories.

Research shows that: the following four kinds of minerals in the prevention of men are predisposed to illness extremely helpful, such as elevated cholesterol, high blood pressure, coronary heart disease, stroke and certain cancers and gallstones, etc. Men need most minerals are chromium, magnesium, zinc, boron four categories.

Magnesium research shows that, magnesium intake normal can reduce heart disease, lower blood pressure. Magnesium can also enhance reproductive capacity, it raises the sperm of sperm vigor. You can from a lesson includes two bowls of porridge add skim milk and a banana get daily breakfast of two-thirds of magnesium requirements.

Roast sweet potato, legumes, nuts, oaten bread, peanut butter, whole wheat powder, green leafy vegetables and seafood are also contains rich magnesium.

Zinc human have plenty of zinc can ensure that sexuality is exuberant, sexual and reproductive capacity healthy normal. Doctors use zinc as impotence, zinc to accelerate human body wound healing, resist disease also has the obvious effect. "The United States nutrition standards recommend" form of zinc indicate male normally required every day, but the actual 15 mg taken quantity often only 2/3. If exercise great influence, because men, more than women, sweat loss more zinc.

A piece of 110 grams, the lean beef can provide the amount of half, other containing zinc rich food is Turkey, seafood, oatmeal and beans.

Chrome is necessary to maintain muscle strength one of the minerals, grown men need at least 50 micrograms every day, hobby activists requires increased to 100 to 200 micrograms. Countermeasures: everyday eat a bunch of grapes and raisins, grape enjoys "chrome library," said. In addition, on the dining table is often should guarantee a coarse food grain, food processing the more sophisticated, chromium contents more little.

One of the patron saint of boron is prostate. Countermeasures: daily drink vanilla ice cream (about contain 25 milligrams of boron), eat 1 put pumpkin seeds (50 grams), generally for boron satisfies human body the physiological needs. 

Office worker to point "slow movement"

The modern workplace personage of life is like the wound up clock, always in fast rhythm, which is what caused one of the roots of physical and mental pressure.

Fast-paced lower the quality of life

Body and heart harmony is healthy base, and emotional activity is psychological factors on the health effects of part of the strongest of bigger, role. The long-term result of fast rhythm, if not fatigue small inconspicuous attention, light is lower work efficiency and quality of life, heavy then lead to many physical and mental illness. The psychologist pointed out, the pressure will cause human body to produce a lot of adrenaline and adrenal cortical hormone. They went through the artery body, sensory, nervous system and immune system, muscle, etc all appear nervousness. Time grows, can appear insomnia, forgetfulness, nightmares is frequent, anxiety, errors in the phenomenon such as work more.

"Every day so busy, where's slow down!" Seems to reality cannot give everybody a "slow" down the opportunity. But many are in the business WangChengQi euramerican middle-aged is gradually from hectic life from out, trying to make life "slow" down. Germany's time research experts plug victor in evaluation "slow life", said that this is not so much a sport, than say people to modern life reflect. The fast pace of life is like a whip whipping up people like nonstop, can't slow down. And "slow life" a little things of truth, the essence of life is to health, appreciating.

"Slow" down the more healthy

So-called "slow life" is a kind of the attitude towards life and a healthy state of mind. "Slow life" is not support lazy, also not delay the time, but let people find balance in your life.

Insist on slow, can let the body running the more normal. Many ordinary busy when you're on vacation sick; Some people work fine, retired after myocardial infarction. Instead of sudden If a person is chronically tension, the body will be used to that state. Once the tension of the body to disappear, factors is an abnormal phenomenon, the adrenalin a large number of reducing, make organs, causes many diseases control. "Slow gens", advocate in life have a chance in a slow down in a gradual way to improve life, promote health. Once slow down, is bringing pressure reduction, nerves and endocrine system recovery, also can avoid excessive consumption physical fitness. People in relaxed, metabolism relatively slow, this means that the body of free radicals also generate less, and this unstable oxygen molecules is accelerating the culprit who airframe ageing.

Exercise can also such. German scientists research found that life is not desperately movement, but to slow pace. Sometimes we one-sided understanding of the nature of the movement, will it is equated with dense and high strength training. The real goal is not to exercise more tired, but more healthy. Proper motion favorable healthy, can prolong life. Too much exercise not only cannot decompression, but harmful to the body.

Heart by form to feel slow movement

Leisure sports is undoubtedly a form of slow movement, is usually some strength, lesser, slower-paced project. Such as yoga, soothing rhythm, smooth action, not only can eliminate physical fatigue, also can heal weary heart, alleviate psychological pressure. And taijiquan, walking, billiards, fishing, health qigong and so on, which are suitable for the slow movement long-term practice. 

Wireless Mesh Network

Wireless mesh network routers and mesh, the mesh of clients, including routers constitute the backbone network, mesh and and cable Internet network connections, responsible for clients provide multiple hops mesh of wireless Internet connection. Wireless Mesh network (wireless Mesh network), also known as "multiple hops (multi - hop)" network, it is a completely different with traditional wireless network new wireless network technology.

introduction

In traditional wireless local-area network (WLAN), each client are connected through a wireless link with the AP to access to the network, if a user to communicate words, must first visit to a fixed access point (AP), the network structure is called one hop network. And in wireless Mesh network, to any wireless device node can be same as AP and routers, network in each node can send and receive signal, each node can and one or more equivalence nodes direct communication.

The biggest advantage of this structure is: if recent AP due to excessive flow caused congestion, then the data can be automatically re-engage routing to a communications flow smaller neighboring nodes transmission. By analogy, packets can also according to the network, continue to route to the recent next with nodes are transmission, until you reach the final destination. Such access method is more jump access.

People actually known as the Internet is a typical example of Mesh network. For example, when we send an E-mail, E-mail and not to go directly to the recipient mailbox, but from a server forwarding through a router to another server, finally after many routing forwarding to reach the user's mailbox. In forwarding process, the router will generally choose the most efficient transmission path, so that E-mail can get user's mailbox.

Compared with the traditional switched network, wireless Mesh network removed node of cabling needs between distributed network, but still have provided redundant mechanism and routing function again. In the wireless Mesh network, if want to add new equipment, simply connected to the power source, it can automatic self configuration, and determine the best multiple hops transmission path. Add or mobile device, the network can be found, and automatically adjust topology changes, in order to get the most communications routing of effective transmission path.

The Mesh network five advantages

Compared with the traditional wireless Mesh network, wireless local-area network (WLAN) has several incomparable advantage:

1. Rapid deployment and easy to install.

Install Mesh nodes is very simple, will be taken out from the box equipment, connected to the power source line. Because greatly simplifies installation, users can easily add new node to expand the wireless network coverage and network capacity. In the wireless Mesh network, not every Mesh nodes need cable connections, this is it the biggest difference with cable AP. The design of Mesh goal was to make cable equipment and cable AP quantity is reduced to the minimum, thus greatly reduces the total cost of ownership and installation time, only it bring cost savings is very considerable. Wireless Mesh network configuration and other network management function and traditional WLAN, the same user experience can easily wireless local-area network (WLAN Mesh network used to.

2. Non line-of-sight transmission (NLOS).

Using wireless Mesh technology can be implemented easily, so in outdoor NLOS configuration and public places have broad application prospect. And the users is directly over the launch pad to receive radio signals, then received signals transmitted to the direct sights users. This way, signal automatically choose the best path constantly from a user to jump to another user, and eventually to no direct stadia target user. So, the user actually has direct stadia for not directly over the adjacent provides users with a wireless broadband access functions. Wireless Mesh networks to non line-of-sight transmission characteristics greatly expanded wireless broadband application fields and coverage.

3. Robustness.

The network robustness usually method is to use many routers to transmit data. If a router fault by other routers, information by alternate paths. E-mail is such an example, E-mail messages are divided into several packet, then by multiple routers through the Internet to send, then assembled into the information reach users' inbox. Mesh networks are more robust than one hop network, because it does not rely on a single node performance. In one hop network, if a node breaks down, the whole networks are then paralyzed. And in Mesh network structure, since each node has one or a few transmits data path. If recent node malfunction or interference, packets will automatically routing to the alternate path to continue for transmission, the whole network of operation will not be affected.

4. Structure flexible.

In one hop network, the equipment must be Shared AP. If several equipment should also access to the network, may generate communication congestion and leads to the operation of the system speed reduced. And in multiple hops network, the equipment can through different node also connected to the network, so won't cause the system performance reduced.

Mesh network also provides greater redundancy mechanism and communication load balance function. In the wireless Mesh networks, each device have multiple transmission path is available, network can according to each node communications load conditions dynamically allocate communications routing, thus it can effectively avoid the node communications congestion. And at present one hop network and cannot dynamically handling communication jamming and access points overload problems.

5. High bandwidth.

The physical characteristics of wireless communication determines the shorter the transmission distance are easier to obtain high bandwidth, because with the increase of wireless transmission distance, all sorts of interference and other cause data loss factor will increase. So choose the more short jump to transmit data will get higher network bandwidth is an effective method of Mesh network, which is the advantage.

In the Mesh network, a node can not only send and receive information, also can act as a router to forward information to the nearby nodes, as more nodes connected and the increase in the number of possible paths, total bandwidth also increase greatly.

In addition, because each short jump the transmission distance is short, transmitting data needed power lesser also. Since many jump network usually use lower power will data transmission to neighboring nodes. The nodes of the wireless signal interference between also small, network channel quality and channel utilization efficiency greatly improved, so as to achieve higher network capacity. For instance in high-density city network environment, Mesh network can reduce the use of wireless network adjacent users, greatly improving the mutual interference of the utilization efficiency of channel. 

Zigbee

Zigbee is synonymous with IEEE 802.15.4 agreement. According to this agreement and the technology is a kind of short, low power wireless communication technology. The name comes from the character of dance, due to the bee bee is flying and "buzz" by the "dance to dither wings to and companion transfer pollen location position information, i.e. the bees rely on such form a group of communication networks. Its characteristic is close, low complexity, self-organization, low power consumption, low data rate, low cost. Mainly suitable for automatic control and remote control field, can embed various equipment. In short, ZigBee is a cheap, low power close distance, wireless network communications technologies.

ZigBee origins

ZigBee, it is similar with bluetooth. Is a kind of burgeoning short-range wireless technology.

Used for sensing control application (control) and be

This idea was put forward in 802.15 workgroup IEEE, so TG4 working group was established, and setting standard IEEE 802.15.4.

In 2002, ZigBee Alliance established.

In 2004, ZigBee V1.0 birth. It is the first standard ZigBee. But since launch hasty, has some mistakes.

In 2006, launched in 2006, comparatively perfect ZigBee.

The end of 2007, ZigBee PRO launch

The underlying technology based on IEEE ZigBee 802.15.4.

The physical and MAC layer directly quoted the IEEE 802.15.4

In the use process bluetooth technology, people found bluetooth though has many advantages, but there are still many defects. For industrial, family automation control and industrial telemetry remote sector, bluetooth seems too complex, power, closer too small, networking, and industrial automation, such as the demand for wireless data communication is stronger and stronger, and, for the industrial field, the wireless data transmission must be high reliable, and can resist the industrial field of electromagnetic interference. Therefore, after people long-term efforts, ZigBee agreement comes out formally in 2003. In addition, Zigbee used before it studied by family network communication protocol for Home RF Lite.

Long-term since, low price and low bit rate, short, low power wireless communication market has been there. Since the Bluetooth after appearing, ever let industrial control, household automatic control, toy manufacturers, etc, but by companies Bluetooth caper stubbornly high, the price of seriously influence the use of these manufacturers will. Now, these companies were involved in the IEEE802.15.4 group, is responsible for the formulation of the physical layer and media ZigBee media access layer. IEEE802.15.4 standard is an economic and efficient, low-data-rate (< 250kbps), working in 2.4 GHz and 868/928MHz wireless technology used for personal area network and a peer-to-peer network. It is ZigBee application layer and the network layer protocol foundation. ZigBee is a new kind of close, low complexity, low power consumption, low data rate, low cost wireless network technology, it is a cross between a bluetooth wireless markup technology and the technical proposal between. Mainly used for close wireless connections. Its basis 802.15.4 standard, in thousands of tiny sensors coordination realize communication between. These sensors only need little energy to relay way through radio waves will data from a network node to another node, so their communication efficiency is very high.

Xbee/xbee - pro ZigBee module

Based on the XBeePRO XBee/Ember chips of module is a built-in protocol stack ZigBee module, it through the serial use AT command set and the API command set two ways to set module parameters, and through a serial port to realize the data transmission. In order to shorten the development cycle, users provides X-ray CTU (AT command) and ZigBee Operator two configuration software in a short time, can XBeePRO module XBee/familiar the development.

ZigBee pro xbee - Operator development package

According to the XBeePRO Ember chip XBee/assembly is a paragraph of development based on the XBeePRO module XBee and ZigBee development kit, through development kit can understand the use of XBeePRO module XBee/method of development, and the use of simple ZigBee technology, this system provides a set of exclusive XBee series module development application software ZigBee ZigBee Operator, Operator, through XBeePRO module can be the XBee/the function of perfection. Summary:

1. Work for ISM 2.4 GHz frequency

2. HaoWa XBee power output for 1 (0 dBm) (up to 100 meters range)

3. XBeePRO power output for 60 HaoWa (18 dBm), 100 HaoWa EIRP (as much as 1 mile range)

4. U.F l. RF connectors, SMA antenna, telescopic antenna can be chosen

5. Industry-specific temperature range (40 ° C) - 85

6. In the United States, Canada, Australia and Europe used extensively, and has been approved.

7. Support advanced network and low power consumption mode (support ZNET2.5 and ZigBee)

8. Support no.5 12bit AD (development board used 2 road)

9. And development kit supporting the manual

10. Digi original X - CTU software, the use of this software can be convenient for module configuration.

11. ZigBee Operator software, can use through the software to realize various complex function. 

Every fast walking 10 minutes to eliminate depressive mood

Go, is the most basic forms of exercise. According to walk speed, travelling at more than 450 kilometers per hour for a brisk walk in 3.6 kilometers, for slow, 3 km per hour within in for walking. But no matter what kind of walk form, the body is a kind of effective exercise, it is to enhance the heart, reduce the weight of feasible measures.

A brisk walk, generally in the morning after every 30 to 45 minutes, heart rate, attention should be controlled in every minute below 120 times per hour, walk 5 ~ 7 km speed advisable.

The famous American medical doctor, the study found FuLe on every day for 10 minutes walk briskly is beneficial not only to the healthy body, still can stimulate positive will. A brisk walk in the location of the general selection plain roads, playground.

Slow, even with a peacetime general speed to walk. This way the suitable for all time and within a day of all age groups, the elder insist, can enhance the person's heart function, increase vessel elasticity, increase muscular metabolism, promote adipose transformation, improve the nervous system, in order to achieve coordinated command refreshed mood, eliminate depression, preventing disease, relieve fatigue, strong body purpose. Slow site cannot do what special choice, work in the environment is the path to walk a bumpy road is that the most benefit to the body.

Walking, speed can grasp every minute walk in 60 ~ 80 steps. Chinese traditional fitness art "record on the internal strength tew said a" walk ", arguing that the abdomen hands the abdomen cell-extracellar "hundred paces." except food sluggish This side, the side of a brisk walk softly massage abdomen, help control indigestion and chronic gastrointestinal diseases.

Suitable for the elderly, walk of knowledge workers and middle in wake up in the morning, after dinner or sleep before, every time 30 minutes. So, for the whole a walk each system has advantages, specially to exercise the heart, improve coronary artery blood circulation, reduce blood glucose blood pressure, remove the brain fatigue, helps the digestive system has the good function. The site should be generally choose walking in elegant environment quiet, airiness location, such as can often walk in green space and garden in better. 

Hi-Fi (High Fidelity)

Hi - Fi (High Fidelity), its definition - with the original voice is highly similar reproduction of sound.

Hi - Fi profile

So what kind of audio equipment reproduction of sound is Hi - Fi? So far is still difficult to make firm conclusions. Audio bounded professionals with each kind of instrument, by any measure, detect various index to determine the extent of equipment Hi - Fi, and audio fancier then often through my ears to judge whether the Hi to mind equipment - Fi. Discriminant heavy fidelity aloud in the startups, pitch needs not only has excellent performance equipment and software, and have good listening environment. Therefore, how to correctly measure audio equipments, Hi - Fi degree still exist objective test and subjective evaluation difference.

Hi - Fi = high fidelity, fancier mouth Hi - Fi system generally refers to technical index is higher audio equipments. Hi - Fi on limits.

Hi - Fi acoustic system structure

Hi - Fi audio systems from the structure can be divided into one-piece, suit type and combined. One-piece sound system is the equipment and all sorts of functions inside the speaker assembly in a box, can not optional apart, this kind of machine is commonly low-grade auv machine. Suit type sound system is designed by the manufacturer of equipment, complete, each single collocation between units can be apart. Audio combination is according to the individual's hobby choose various types of equipment, to free combination.

Audio system composition

Audio system mainly consists of auditory system (people's ears), hardware system (equipment), software system (source) and listening environment composition.

Audio source refers to the magnetic signal sound software or digital signal conversion for signals of the equipment, it includes the DVD, S - VCD, VCD, CDS, tuner, gets stuck and hi-fi video recorder, etc.

Power amplifier main is a sound equipment input will amplify weak signal after generate enough electricity to drive a speaker voice replay.

Speaker is a stereo equipment's voice, the voice of sound software ultimately on speakers to performance, the superiority of audio equipment heavy completely on speakers aloud to express, so speakers in audio equipments plays a vital role.

Audio systems are the main technical indexes?

Audio system main technical indicators are: frequency characteristics, SNR, dynamic range, transient response, stereo separating degree, stereo balanced.

Frequency characteristics: audio equipment replay the frequency range (when) and signal amplitude frequency response with changes in frequency relations (amplitude frequency characteristics). The amplitude of the unit is dB, frequency of the unit is Hz. Acoustic system frequency response at least 32-18000Hz, on this frequency range should be less than 2dB signal amplitude change.

SNR: in the same reference points the useful signal, and the ratio of noise of logarithm. In speakers input points SNR ear 70dB, from speakers metre noise nearly not smell, Hi - Fi systems usually reach 100dB above.

Dynamic range: audio equipment replay maximum output power and static not distortion system when the ratio of power output noise logarithm. Hi - Fi systems usually reach 100dB above.

Distortion degree: audio equipment replay, audio signal distortion degree. A harmonic distortion, crosstalk, transient distortion. Hi - Fi system harmonic distortion generally less than 1%.

Stereo separating degree: the separation of vocal about two degrees Celsius. Reflect the vocal crosstalk control two levels.

Stereo balanced: two signal gain the vocal about the difference.

Please refer, SNR, stereo separating degree, stereo balanced is the human ear discrimination, other indicators can be made through multiple system is compared, the expert guidance is very important. 

Mesh

Mesh network namely "wireless Mesh network", it is a wireless network, is more than by AD jump, evolved hoc network is solving "the last kilometer" problem of key technical one. In the process of evolution as a next-generation network, wireless is an indispensable technology. Wireless mesh network with other collaborative communication can be. Is a dynamic can expanding network architecture, any two equipment are can keep wireless Internet.

introduction

Mesh WLAN network than one hop network more stable, this is because in data communication, network performance play and not rely on a node. In traditional one hop wireless network, if the fault occurred in the AP fixed, then the network all wireless equipment can communicate in Mesh network. And, if a node fault occurred in the AP, it can choose a AP again, data can still communicate destination. High speed from physics perspective, wireless communication means communication distance of the shorter, the better communication effect will be. Because as communication distance growth, wireless signals will not only weak and mutual interference, so as to reduce the efficiency of data communication in Mesh network. And, in a shorter wireless network connection instead of past, so as to ensure long connection with high speed data will be between the nodes. Rapid transfer Mesh technology can make the WLAN installation deployment, network expansion and more convenient. Many manufacturers are launched feature-rich Mesh products, thus make deploy large-scale carrier-grade wireless intracity networks become possible. (specific Mesh technology says can reference related manufacturers of technical document.) such as: Strix developed the DMA protocol (Strix Dynamic Architecture Mesh ™, Dynamic Mesh structure), make wireless access points with automatic configuration, and make the network efficiency network optimization properties. Provide self organization, repair itself, update Dynamic network connection, and ensure safety etc function.

Wireless mesh network (WMN) technology is based on IP access for new wireless mobile communication technology, suitable for the regional environmental coverage and broadband high-speed wireless access. Wireless Mesh network based on the distribution of numerous reticulation wireless access point mutual cooperation and coordination, have broadband high speed and high frequency spectrum efficiency advantage, has the dynamic self-organizing, since configuration, since such prominent characteristics, thus maintaining wireless Mesh technology and network, the research development and application, become the hot topic wireless mobile communication, especially in the future of mobile communication system long-term evolution (LTE), wireless Mesh technology and network become attention focus.

significance

Mesh in finite element method of significance for "points unit". Namely research objects taken apart into a finite element of each geometry geometry and each node force and deformation analysis, wrote the partial differential equations, and finally put all the unit nodes partial differential equations contact, the generation into load and boundary constraint condition, by functional analysis method. Decomposition unit can according to objects into

Beam model objects: beam element, 2 nodes

Curved surface, sliced, sheet metal, shell: shell element, 4-5 node

Entities: tetrahedron unit 4-5 node (analytical error is bigger, easily convergence, many CAE software step can be completed units classification and unit - node modification), or hexahedron units, 8-21 nodes (precise but easily not convergence and difficult) divided unit. The significance of Mesh in reverse modeling for by a Point Cloud Point Cloud) data generation (small triangle geometry Body), the latter (facet can be directly used for various rapid prototyping (Prototype).

Through three coordinates measuring instrument or CT slices way to get complicated appearance products such as the point cluster, generating surface. ASCII,. Taking landuse-dat etc (X, Y, Z format) text data, is the point cloud.

application

MESH technology in the meaning of coal industry

For construction of modern mine, mine, various local digital technology companies with this goal in efforts to develop technology WIFI. Based on the wireless communication system used in coal mine has come into use. Including the use of the MESH technology communication systems, such as KT109R etc.

In coal mine underground complex harsh environments, the conventional communication technology such as landslide, often affected by the circumstances such as power beset in wireless communication system, if use the MESH technology, even communications cable damage every communication stations, downhole between communicate MESH technology still available for mine. The move also provides a reliable emergency rescue the platform. 

Warm spring fitness outing two not mistake

Will dumbbell at home, to outdoor experience a fitness, body's natural trip. Field open topography, the fresh air, which bored, and fitness no longer road and wind resistance rough can accelerate the burning calories, make your fitness more productive.

When you really on the outskirts of the path, I'm sure you'll love this natural workout!

1, exhibition arm training

Practice parts: back and shoulders

Selection in a larger rock sat down and upper body straight, knees and legs and approach, calf into 90 °. Each hold hands a pitcher of water, the arm extension, and kettle shoulder into a straight line. Chest down slowly to the knee, and palm near, relatively, arm up until two arms unbend, parallel and clamping head. Note back don't bend, maintaining a pose 2 seconds, then looked up, sit up straight, regain the arm. Back to the starting position, taking a break for five seconds, repetitive movements 12 times.

2, crouchs

Practice parts: ligament, thigh muscles, hips and shoulders, belly

A, stand straight, feet apart and shoulder are the same as wide, each holding hands a pitcher of water bottle, down to the body side. Raise the arm to the front, until big arm and upper body ° Angle into 45 so far, palm relative. Slowly the body gravity low, legs bent, below the knee until kettle, and located in upper straight, don't lower the head, make forehead, knees and toes into a straight line.

B, maintaining a pose 2 seconds, then slowly rose up and up at the same time unbend arm, will kettle above their heads. Again with the waist for shaft, attention turned slowly to the right feet from the ground heel don't. So far, until can't turn again pose 1 seconds, then keep relaxed, back to the starting position, reversing the other side turned. Repetitive movements 12 times.

3, turned to practice

Practice parts: the lower abdomen

Selection in a flat place to sit down, and upper body straight, legs bent, and make ham and crus into 90 °, foot touchdown. Arm unbend, hands holding the backpack, smooth lift to his chest, knee above position. Slowly backward body, until feel so far, and then, with lower abdomen tight for shaft left turn, waist and lower down, until backpack arm so far, touch the ground was maintaining a pose 2 seconds, then turned to the right arm, back. Note in the process of making this motion, feet don't leave the ground, to complete a turn around after all, taking a break for five seconds, relax and repetitive movements 10 times.

4, push-ups practice

Practice parts: the chest muscles, shoulder

Feet on older stone, the palm touchdown, to tiptoe and hands for the fulcrum, will hold up the body into pour "V" word. Straight back, slowly bending arm, so the head close to the ground, then unbend arm, back to the starting position, rest 5 seconds later repetitive movements 8 times. Note if you arm strength enough, when arm in moderation bending, not too narrowly, lest cause sports injury.

5, single leg crouchs

Practice parts: coxal muscle, ligaments, triceps, shoulder

A, stand straight, arm, straight out of the kettle hands handholding pack pack. The right back up and adjust good balance, slowly bending left leg after body gravity, will put low.

B, bending left leg at the same time right leg unbend, backward, until a 90 °, left leg bent right knee is going to hit the ground so far. Maintaining a pose 1 seconds, then relax, back to the starting position, change left foot repetitive movements. Each completed 1 times left foot 1 group, each exercise complete 10 groups.

6, balance, sideways practice

Practice parts: the lower abdomen

Upper body straight, her legs spread apart and shoulder are the same as wide, each holding hands a pitcher of water canteen. Will the arm upwards, palm relative, make straight in the head upper part, kettle, while bending left leg left foot from the ground. Then, pay attention to the right upper arm as far as possible, do not wriggle arms keep parallel state, eyes look forward, so far, until can no longer keep bending posture 3 seconds, then relax, back to the starting position, changing right foot, left side repetitive movements. Around each side 1 times of group 1, each exercise for complete 15 group.

7, shoulder practice

Practice parts: triceps, ligament, hips and shoulders

Stand straight, straight back, arm in front unbend, palm hands handholding backpack, relative, and shoulder are the same as high. Before and after the left foot tiptoe feet apart, body gravity will then touchdown, lower left leg knee, until almost touchdown, left leg calf and ground parallel so far. Note back and arm don't bend, eyes smooth inspect ahead. Keep pose 5 seconds, then arose, and went back to the starting position, right leg bow change repetitive. The left and right leg each completed action 1 times for 1 group, each exercise complete 12 groups. 

Physical

Physical does not mean your biggest strength. But means you with the maximum power can do much work for foreign, this involves your maximum force, the greatest endurance, strength should be refers to a personal body energy in maximum force under the condition of the continuous body continuously provide the amount of energy can continue.

Physical = muscle existing energy + (foreign energy for total/foreign body function quantity speed) * transformation of energy speed

Can DiGongLiang > foreign energy doing work speed

Everyone has different energies, and existing energy can be acquired through exercise to improve.

Everyone's transforming body energy at different speeds, this can also acquired through exercise enhancement, so, everyone's physical different.

But in general, the increase of physical with age, and the body's growth and increase. So, adults than kids to large physical. 

Single Crystal Slice

Silicon is earth one of the most abundant materials store from the 19th century, scientists have found crystalline silicon semiconductor characteristics, it almost everything changed, and even human thinking. Until the 1960s began, silicone materials replaced the original germanium material. Silicone material - due to its high temperature resistant and resist radiation performance is good, especially suitable for making the characteristics of high power devices become application a kind of most semiconductor materials, the current integrated circuit with silicon semiconductor device most is the material manufacturing.

Single of silicon. Have basic complete dot matrix structure of the crystal. Different directions with different properties, is a good half guide material. Purity 99.9999%, even to the requirements 99.9999999% above. Used in the manufacture of semiconductor devices and solar battery, etc. With high-purity polysilicon on planarization into furnace control.

Molten elemental silicon in silicon atom during solidification in diamond crystal lattice are arranged in many forms, if these forms of the same grain grown faces orientation, the grain combine into parallel and crystalline silicon. Monocrystalline silicon has allowed the physical properties of metal, have weaker conductivity, conductivity increases with temperature, have significant half electrical conductivity. Ultra pure monocrystalline silicon is intrinsic semiconductors. In the super pure monocrystalline silicon adding trace amounts of Ⅲ A group element, such as boron may raise its conductive degree, and the formation of p type silicon semiconductor; If adding trace amounts of Ⅴ A group element, such as phosphorus or arsenic can also improve conductive degree, forming n-type silicon semiconductor. Monocrystalline is usually made first molykote amorphous silicon, then polysilicon or draw method or suspension area with fusion method in from grow to stick monocrystalline melt. 

P4P(Proactive network Provider Participation for P2P)

P4P(Proactive network Provider Participation for P2P) is the P2P technology to upgrade, strengthen service providers (isps) and client program communication, reduce backbone network transmission pressure and operational costs, and improve improved P2P file transfer performance. And P2P randomly chosen Peer (equivalence machine), P4P agreement can coordinate different data, was able to the topology of the network, so as to improve the effective choice Peer network routing efficiency.

P2P software application engulfed a huge amount of network bandwidth, this makes operators big headache. Verizon engineer had a set of new topological theory P4P algorithm, are likely to reconcile the contradictions technical method.

The traditional P2P mode data nodes and transmission are random, i.e. the transmission method may occupy any network node or export of bandwidth. But P4P is intelligent select data exchange object, more through intelligent computation select the same routers or regional network to exchange data, maximum extent solve large-scale nodes and network outlet through the same intelligent choice load, data exchange object can also greatly improve the data transmission capacity. In Internet advertising, there is also a P4P Pay for performance, is the abbreviations in English. That is to say, let advertisers not according to advertising time to pay, but according to advertising the actual effect, after brings the number of users is practical to pay. This p4p and p2p technology no relationship.

And P2P randomly chosen Peer (equivalence machine), P4P agreement can coordinate different data, was able to the topology of the network, so as to improve the effective choice node network routing efficiency. Still with the above example, the Beijing user can prioritize and Beijing city rivals users to realize file fragment of exchange, then expanded to distant regions, have very necessary, will go abroad document clips exchange. Of course, the operation mechanism, P4P than "city exchange" concept, it will also according to the user's uplink, download bandwidth make comprehensive judgments, for the most effective choice, maximize the overall efficiency of the exchange.

The virgin P4P recoveny is a work of Chinese at Yale university, dr ever jazer. Dr xie of American distributed computing industries federation (DCIA) and P4P group's chief researcher, put forward and completed P4P theory and system design. Since the end of February, xie hai ever since such P4P system design researchers in field test on a large scale.

The Chinese invented the dominant commercial tests in a good performance. According to the feedback, use Verizon P4P technology, P2P users average download speed increased 60%, fiber to the home users increase 205% ~ 665 %. In addition, operators internal data transfer distance reduced 84%. Users have a 58% of data is from city rivals, compared to traditional P2P of 6.3% proportion had nearly 10 times the ascension. 

Rock climbing on the body of profit how many

Second-ranking increases bodily softness and coordination feeling this is climbing, the importance of the key ability more than physical; Foreign existing medical field, will rock climbing used to correction and child muscle hands, eyes, body coordinate training.

Second-ranking enhance physical: climbing to the arms and legs are balanced strength and beauty, and enough to load their weight, against gravity, it, girl but don't lose boy.

Second-ranking concentration: feet to stepping a whole god perfusion, rock body in the rock displacement attention to every detail of a person, can cultivate the concentration degree of things.

Enterprising: when he had by climbing rope bear weight, "hang" in the high walls or rock tower, is giving up, or continue to adhere to? Courage is not just can describe, and willpower, honor, and self-surpass determination.

Second-ranking than their confidence: in the face of high height is still at least 3, 4 times, still resolutely rock-gym difficulties in mind than normal, natural gravity and confidence.

Balance: in Washington called rock walking "spider-man", the basic position is walking three fixed point "is on the move" balance! 

YOGALATES fitness fashion

In the girl's dictionary, "thin body" is always one of keywords. But the gym curriculum, always full pedal fuck, aerobic Latin, woman wrestle, bike... Playing a few times is fresh, is always so things over, but call the person tired. Yoga's thriving lead a, can see the coach noodles don't change color passage from behind, then put into the ear side immediately brought forth the notion of running away.

Hear star fitness club out a new composite YOGALATES, say -- the combination of yoga and pilates, for those who can't stand top acuteness exercise, it is difficult to shun the local practice yoga, and want to feel adventurous of girl, hurriedly to personally experience once.

Inhale, let belly mounded a hill

Receive a long cushion, and a pair of a pound of dumbbell. Just stood firm, light suddenly all snuffed out, only two light green lights shining in good body, let people coach produce a "trance" emotions.

Course formally began. Immediately "mysterious garden" type of music ring.

Do YOGALATES first step is to learn to "abdominal breathing". Ordinary people breathing, always inhale chest slightly tall, abdominal slightly charge. While "abdominal breathing method", on the contrary, inhale abdominal elevate, when exhaling abdominal assemble. Just hours, somewhat at a loss -- to take a deep breath, chest BuZiJin drive up, think again summon hell.sucre adversary, stomach, looks probably very funny.

With eyes closed and lie on the mat, coach put his hand on my belly, kept said: "higher! Again!" high again -- originally, until the belly drum into a hill, is "sucked right gas".

Suddenly, Carmen singing

A set of shutting down action, plus a dim light, let the life out of the sleepy mood. Suddenly, good picked up two small dumbbell, turn the arm twisting up from music also flung the empty spirit of "mystery park" -- is that song becomes warm famous Carmen! So suddenly be dragged into "pilates" stage of excited rhythms.

Until very not easy to keep up with dance rackets, already full head big sweat! But don't happy, also in you panting, didn't slow lead god comes, music and turned flirtatious India taste. Coach sitting on the ground, began to practice yoga - to the sky extend arm, tiptoe stretchs tight straight, leg also stretch upwards, the whole portrait V matrix dominating set a on the floor! See other students to do the noodles don't change color, I also have to bite the bullet and try it... Well, to admit, beginners can only like a "daruma" sort hurry-scurry...

Surprisingly, this is just "a piece of cake", the next almost every action, like playing "body letters" game, while standing on one foot, both hands forward, another leg with the parallel, like a T word; For a while and hands, feet stretch upwards in another leg knee above, one leg like a lowercase B... Coach forever, while I stood steadiness unsteady also sit rickety, 45 minutes be very long.

The lift, tiramisu tiramisu the pull

A set of actions down just detection, YOGALATES originally is a unit of yoga movement, match on a unit of pilates and into, so, can strengthen body flexibility and balance, and meanwhile care to muscle strength enhancing, than one single do much more interesting.

YOGALATES precautions

1, in YOGALATES 1 hour before, do not eat. Because there are a lot of bent and head movements, if there is food in the stomach, may cause discomfort.

2, after movement will feel very hungry, but also not immediately eating, first drink or sports drinks - this time to eat, the most easily fat!

3, YOGALATES best to do three times or more a week, so you can have effect.

4, dresses without too much limitation, comfortable good. In addition, exercises will profusely, had better choose breathable fabric costumes.

5, although YOGALATES's requirements are not high, but still have yoga movement, a few flexibility began to do up will feel difficult, encounter this kind of situation never forced. Repeated done a few times more, nature would meet the requirements.

6, do some stretching action students will have almost cramps feeling, this is because without sufficient preparation before movements. So do YOGALATES prior to run a bit, around joints, the body stretch apart. If really cramps, can on the mat and rest edge restored edge wait for the next section action. 

Multi-user Detectio

Multi-user detection is for CDMA in parallel efficient testing program transmitted signal in td-scdma, it has been widely used in. Multi-user detection technology can make CDMA system spectrum efficiency is greatly increased.

In CDMA mobile communication system, must resist two types of interference. The first kind is due to different users to share the same frequency band between the bandwidth (each user because of its corresponding address correlativity exists between) resulting from the Multiple Access devices, MAI (Multiple Access Interference), and the second is due to the characteristics of the channels is not ideal and cause ISI (Inter - Symbol Interference between devices, symbols. If each user relative to other users of interference can be eliminated, then system capacity will be greatly improved and theoretically possible to eliminate near-far effect. Multi-access interference is restricted CDMA system capacity of an important factor. When the user number a little while, multi-access interference generally are small. But as subscribers purpose increased, multi-access interference will be more and more big. In order to more effective resist near-far effect and decline in order to improve the system capacity in the early 1980s, proposed multi-user Detection technology (Multiuser Detection) to eliminate multi-access interference, also can use victor Viterbi) algorithm than (such as equilibrium method to fight among symbols interference.

In reverse link adopts the concept of multi-user detection was first proposed by Baiser Klein and analyzed, they forced Zero Block Equalizer (Zero Forcing - which Equalizer) performance. Linear, Then, Jung and Klein and puts forward such other multi-user detection algorithm, such as ZF - BDFE, MMSE - BDFE BLE, MMSE - such algorithm. The basic idea is to receive each signal linear matrix operations done together. These multi-user detection receiver can also and coherent receiver antenna diversity technology and combining Turbo yards.

Multi-user detection techniques of main shortcoming is its high computational complexity, especially in descending on the link. In fact, because multi-user detection the amount of calculation is only part of the whole mobile station need a small part of the amount of calculation, so it was necessary to control the algorithm complexity. 

Sandbox

By most major search engine Google search engine results determined page (search results), issued a new website ranking more and more low. This phenomenon, known as "sand box effect". When a new web site is Google listed in the index, it will usually get after by many observers think of "the new website" incentives. The new web site in the search results will rise to the top list of rapid, however is a flash in the pan, then, ranking will continue to drop.

Sand box effect concept

Sandbox, is Google the important measures to counter junk website, appear in March 2004, namely high-profile Google Florida storms and Austin six after the storm. With sand box, Google still as quickly as they have in the past from the Internet website, collected from the new website for fresh information efforts, but no longer as it used to trust these new website. All new included website want to pass "applicable period" or "observation period". Pass the test of time, if these sites can smoothly through Google repeatedly against "flood" filter (spam filter) test, eventually these web sites will be returned to search "the sea" in, participate in normal ranking contests. This process little criterion two or three months to a year, long is. The new website can take some positive measures to fight for early out of the sand box.

Sand box effect exists only in Google

When the web page at Google's sand box buried, for the same keywords, it may be in Yahoo (Yahoo) and the MSN search results to obtain high ranking. Look, "sand box effect" is Google's unique events.

How to get rid of sand box effect

The most important in the forefront of the keyword search rankings after many days scenery, new website will be able to Google search results bottom, like doesn't exist as well. Even if the site may have a very high level (the Google web PR value), with many powerful and the introduction of related theme links and rich content, it will encounter frustrating "sand box effect (Sandbox)" influence.

How can you need to consider from sand box effects out. When restraining factors exclude, you in the sand box during the work done punishment will make your website appear again in search results.

Sand box effect as Google used the search rankings damping filter (damping just get used to filter), is first published after the site in the first two months to four months of xinzhan reward (fresh obtain "bonus)" web site. This gives the new website within short time reward is refers to gain the search results is very high ranking, because Google prefer new content. In the sand box xinzhan should constantly improve during every aspect SEO, sand box effect later, usually have good rankings.

Because the original new content becomes slightly into the old, sand box filters began to take effect. This is sand box effect. A website into sand box of the average length of time is about 90 days, but rarely in the sand box continued stay four months.

Most website according to the type of key words share damping down effect (damping down have). Sand box filters is applicable to all website, regardless whether they have a lot of introducing links, even if there is a correlation strong link also no difference. Rich content website will also be in quicksand. Sand box effect one of the algorithm is necessarily Google recently, because it is common.

Sand box effect intent is what?

Many observers think, sand box filters purpose is to dissuade fair in violation of WEB site administrators don't use Google site administrator guide practice. Google tried to break down some techniques, such as the use of garbage sites, buy the flow established early on expired domain names before obtain its existing Google web page rank as bouncing starting point.

Unless a more lasting links, or short-term link to rent and placed a new web site, and do no good. Also that possibility exists: namely Google in the index a few months after the initial site, will not give their full page rank (using PageRank). Damping effect (the lack of dampening) causes have the web page rank (credit) can decrease expired domain name using PageRank introduced the value of links.

From this kind of situation can conclude that Google is trying to prevent common buy expired domain behavior. For example, Google toolbar may show that PR7, but algorithm for may give their website search rankings PR value is zero. Of course, this kind of circumstance also can lead to very high Google ranking.

Google may be hitting another aspect is garbage sites. If a pure garbage sites maker (spammer) in website after the operation first few months cannot get good rankings, they might close their garbage sites. The blow spammer is Google long-term goal.

However, Google says about any good intentions of indirect blow for those who did not violate any rules website. Many WEB site administrator, especially those who don't know the webmaster, SEO whole situation for usually happening very confused. For example, they in Yahoo and MSN search results were very good in, but I don't know why not in Google's index directory. Many people mistakenly think they accidentally triggered the Google's punishment.

Google hitting another behavior is the web page for initial purchase link level (using PageRank). Google company's people may think a site should be as time past and natural get links. They think buying the link is not the natural development site performance. However, only a few natural links, also had the same sand box of damping effect (dampening have).

This situation is completely possible: namely a website is not on sand box, but it links are being monitored. Algorithm may consider its links time, their site, Internet service providers have links to the links range and normally the whole link diversity.

Sand box effect is not always a bad thing

If your site just into sand box, had better not to panic. Google did not punish your web site. You also know that your site has been Google index. Instead, this is just a normal phenomenon, is Google algorithm some confusing and wretched place. If the site because of xinzhan reward effect "and" in search results obtained high ranking, will most likely taste bitter fruit.

Why will produce sand box effect?

Many just online in Google it is difficult to have good xinzhan ranking or no ranking, this kind of phenomenon we call "sand box effect". Why to produce this phenomenon, the following is my personal view: before they found out that stack keywords ranking is very good, so was swarming pyramiding keyword, Google is adjusted the algorithm, pyramiding keyword is whether to use; Then everyone again found outside links to railway station, very good, with many rankings outside chain let. But Google algorithm is very important part in the pr is based on, won't excessive foreign chain drop right. So, Google gets out of the sand box, put Google looks suspicious web sites on sand box inside investigation, a period of time with any outside chain is not effective, thus greatly reduces the some people plus external chain of interest. This is also a method using Google deal with seo. 

Fitness equipment selection for the wrong and

Fitness equipment is dedicated to exercise the muscle x

The purpose of the exercise equipment for from exercise can be divided into aerobic exercise equipment and anaerobic exercise equipment two kinds. Aerobic exercise purpose is practiced well-balanced beautiful figure, improve health level. Anaerobic exercise is through scientific training, reasonable nutrition and full recovery, utmost ground exercise muscles.

The function of fitness equipment more is better x

This is actually a misunderstanding. Dozens of functions are integrated in a cardio, comfortable degree would be affected, all sorts of function use also is not high.

Fitness before, should choose to clear the purpose of using equipment rather than hand-writing

Fitness equipment is used to lose weight or want to improve their health, keep fit? Or are you planning practiced good muscle? According to different purposes should select the instrument. Buying equipment don't blindly believe television shopping or large stores sell, oneself must try.

Correct fitness for household use purchase, at least the following questions should ask clear:

1, demolition, outfit need how long;

2, after what is installed volume;

Three, use what materials manufacturing;

4, if appear small parts or years long wear need replacing where they can find, etc.

Finally, try to see if it yourself with their use.

Suitable for home use of fitness equipment

Treadmills machine: one of the most simple, the most economical, the most easy workout. Simulation of put steps and mountaineering leg movement is designed, can strengthen the leg exercise leg muscle group power to keep the leg is strong and handsome.

The treadmill: called a personal body and mind to keep the most effective, most scientific workout. This movement way has reliable result reducing weight, and will lose weight process to the human body may cause damage to bottom out, medicine and sports is put a high value of aerobic metabolic fitness activities.

A: life many people have a bike, but using a motion to reduce weight and cycling sport is cannot compare. A sports can free adjustment cycling sport intensity, and through the electronic observing his exercise on every moment of speed, sports time, heart rate value, etc.

Row implement: boating is an ancient and attractive movement, with the way the weight loss with many different, because doing every rowing the action, about 90% of the extensor muscles, participated in sports, and in general daily life human extensor muscles, almost don't participate in any sport, most is involved in maintaining the balance of human body posture sport. So this row implement the exercise of human extensor muscles, it is the best choice.

The real good ideas: teach you a monitoring their metabolism is normal method: the weight of the body morning will lighter, night will heavy some. Will the morning weight number and night compared the weight number, can detect whether normal metabolism. If differ 2%, that means the body good, otherwise the metabolism of the body's metabolism proved slow. 

Digital Audio

Digital audio is actually people usually say of AC - 3 theater system, the so-called AC - 3 is actually dolby AC - 3, namely dolby digital is America dolby public company third-generation audio chip, first generation is dolby stereo, second generation is dolby directional logic, dolby AC - 3 at present more popular, with AC - 3 decoding of equipment, and moderate price also by several film company to support, so many sources. Dolby AC - 3 and d t s two surround decoding system principle, as the independent and track plus a low sound, dolby AC - 3 recorded for audio signal compression ratio for 12:1, and d t s is 3:1, it signals access rate is dolby AC - 3 4 times, so d t s effect details richer and more real. And dolby AC - 3 is a exaggerated effect, but d t s coding sources much, a digital home cinema configuration: first to a belt dolby AC - 3 or d t s decoding AV center (pa), a big screen color TV, a belt dolby AC - 3 or d t s digital output DVD machine, five whole frequency with power speakers (the Lord speakers, buy and surround speakers), a low sound speakers, this is the most basic configuration. 

Ad Hoc

Ad Hoc network is a no center self-organizing more wireless network, it does not jump to any existing fixed facilities is a foundation and can form temporary anytime network. It is a special purposes, the use of equation wireless technology, network, network nodes as its neighbor (in each other the direct communication within the scope of the node) router, through the node forwards communications between nodes.

Flexible, expands with network maintenance and operation convenience, low cost, simple and fast installation, system bestrow scope, etc. And with high of invulnerability performance, in emergency relief, the field exploration and military area has broad prospect of application. This network and ADLS or 3G network different is this is one kind has the special significance and temporary not common characteristics of can network.

AD hoc network is a group of wireless communication transceiver equipment with the mobile node component, multiple hops, temporary and centerless autonomous systems.

It has the following main features:

(1) self-organized. The network may not need any prior erection wireless communication infrastructure, all nodes through the layered agreement system and distributed algorithm, to coordinate their actions every node. Node can quickly, independent and independent networking.

(2) equivalence structure

(3) multiple hops routing

(4) topology dynamics 

The rookie key body selected

The benefits of exercise brings you is a little, of course not jilt stopped playing leg, can work so simple, whether you give to reduce weight, or to exercise increases muscle what expectations, all must first understand the nature and itself need exercise, continue again, can achieve ideal achievement.

Into the gym is similarly. Most women on the gym are holding the nameless fear, mostly because don't know fitness equipment use method and various sports properties and results.

Generally speaking, the gym within the movement type can be divided into two kinds: anaerobic exercise and have raise movement, the former refers to the body in no oxygen to use muscles, such as weight training or sit-ups, etc that belong to anaerobic exercise, its main utility in training exercises. As for the latter is activity body must be active when you breathe, slow motion, to ride the bike or walk-on aerobic dancing is aerobic exercise, it besides can be trained to consume heart-lung excess pounds is effective.

The gym is different

Besides exercising, you know, its characteristics and different gym appeal also makes a difference, check on the market before all kinds of gym have mushroomed, based on interviews with investigation, now about the gym can is divided into the following four categories:

One, called for in professional sports

Aerobic wrestle fuck violence lose weight

From operators to coach has sports can background, is this the gym's characteristic, advanced, and diversified fitness equipment will be updated regularly serviced, professionally trained coach group for each member is doing physical analysis, open exercise prescription and health management services, and if you have gymnastical requirement was modified muscle line, the more hard-core, strengthen the muscular power of the Core body-building plan to arouse your interest, so this kind of emphasizing professional gym is the best consideration.

Second, in addition to fitness also want beauty

If your heart to fitness is to find a temporary leisure beautiful space, in addition to exercise outside also capable of beauty care, inside out, and fix, but didn't want to practice a type of strong JinRou, Schwarzenegger concurrently consider fitness and hairdressing services gym, these gym in addition to provide general cardiopulmonary training and strength training equipment, but also set up a beauty center, provides for the customer by professional beautician nurse, finger pressing process, can even aromatic therapy to modern have comprehensive care women demand will.

Three, muscle and fat and management

Sports scientific studies show that people after age 30 body function would gradually decline, but after sports management, can delay the ageing, again enjoy youth, that is the emphasis of medical and movement both the theoretical basis of the club, this form of gym will be comprehensive members physiological and biochemical assessment puts forward, combining aerobic exercise prescription, muscles and weight three training and biochemical consultation, thus promoting physical and management to the health of the twin purpose.

Four, fitness can also leisure

Finally, some gym fitness equipment mainly aerobic exercise and simple cardiopulmonary will practice primarily, mostly with adjustable swimming pool, men and women three warm, very suitable for a size or couples to the leisure and sports.

The gym choose

Professional personage proposal fitness "the rookie" in choosing awarded by body room must not confused by advertising, listen to advertising or salesman selling buy buy membership card; Must insist on an on-the-spot practical operation equipment comprehensive itself needs and it again the pros do overall evaluation, won't because of impulsive and a waste of money, even fraud.

To never have fitness habits of people, evaluate the gym by two aspects of hardware and software to begin:

Hardware: can be divided into two aspects of design and equipment, design including space daylighting, and whether air circulation and so on, because it's also belong to the public, so in one game institutes space arrangement, air flow. Even safety facilities must comply with the relevant provisions are.

In addition, special remind airiness are the important: most the gym in the basement, if a ventilation equipment not perfect, will cloggy airiness, instead affects fitness effect. Plenty of light, capacious space and fresh air, can make your fitness results as a double, and investigate the gym first assessment.

In addition to design, equipment, hardware facilities is the key, gym, according to the different effects and effectiveness, fitness equipment can be divided into two categories:

A, practice equipment: for example the treadmill, ladder sensor and bicycle is basic products. The main function in consumption body fat.

Second, weight training equipment: function in training muscle strength, modify muscle line, according to training parts can be divided into different return ShangXiaZhi, trunk use etc, regardless of that equipment, must conform to the hygiene is good, normal function and other conditions.

Software: fitness equipment is a gym hardware key, fitness coach is indispensable, a good coach help you will quickly achieve ideal result, didnt have more comfort for fitness rookie, so the mood role wings-and shall not:

1. License cannot little: at present the Nevada border also began advocating fitness certification system, therefore the best in choosing the gym coach professional background and attention for license even add a points more than even security guarantee.

2. Before fitness will complete the evaluation: in order to decrease the probability of accident, before fitness must do complete health assessment. Contents include:

Health questionnaire: including blood pressure measurement, cardiac function xing and skeleton type test, etc.; In addition even if have pro-cyclical habits, whether smoking, emotional well-being and family history etc personal life detail also can not be ignored.

3. Fitness assessment: such as body flexibility test, subcutaneous fat ratio, muscle, explosive force, etc.

In the above, after testing a responsible for fitness instructor will also according to your needs, and you face to book fair for personal fitness one point plan book. To sum up, only professional carefully, and well thought out fitness instructor, cooperate the function is good fitness equipment, to ensure that you have super hold concurrently efficiency and health gym trip.

Refuse to the gym's sports injury

Except a few for not doing health assessment and happen outside the physical can't load example, most of the gym accident all belong to a sports injury. However professionals say: sports injuries is not the patent, sometimes rookie occurred frequency may be higher veteran, reason, is the so-called "without it, maybe lost jingzhou" effect is only temporary, the negligence or lazy saves kongfu often is lead to muscle strain, the bones within dislocated killer!

Doctors say: general gym possible accident harm, about a sprain, muscle and bone fractures three:

Sprain ankle tendons symptoms for more: fracture. To avoid the biggest know-how is sprained wears a pair of shoes fit health standard. Soft, shockproof ability shoes can absorb the pressure comes from the ground, slowing the impact of your feet, by reducing the probability of indirect sprained sports injuries, is to prevent the necessary equipments.

Muscle: mostly as sport prior to do warm-up. Fitness coach remind first, every time fitness before do warm-up exercise at least five minutes, action not complex, as long as can even extend limb, exercise can. Besides exercise excessive may also make muscle. Avoid this situation, the best approach is to abide by the coach, don't put all the fitness program for fast, suddenly are too fierce campaign.

As for muscle should how processing? If only slight ache, by hot tub or aromatic therapy to relieve symptoms. Many plants in nature soothes muscle pain role, such as chamomile, rosemary and oil galilee, the ingredients such as tree fragrant oil directly to massage local, or several drops in bath crock, ache would quickly eliminate. And if already interferes with limb pain levels normal activities, will have to report to the hospital, don't use medicine, lest he symptoms worse.

Fracture dislocation: doctors say, with the majority of fractures and dislocations in fitness movement for example is incorrect, especially weight training equipment are more likely to result in this case.

Sports injuries caused by lower limb fractures spinach, especially some emphasize leg strength exercises equipment such as crus exalt machines etc. Most easily caused by overtraining calf fractures. Lai physicians and said some this leg bone fractures may only be a slight crack bones, then pain symptoms will not very obvious, so easily overlooked. The practice of compare insurance in advance with coach is still fully with coach communication, sports watch physical ability, don't try to be brave, just after exercise than sense of don't know if happen quickly, can the doctor is forever notification.thank notification.thank sports injuries. 

Fitness hung a "suspension wind"

At present, the main consumption in the fitness club crowd to office white-collar is given priority to, according to not complete count, office white-collar more than 80 percent of the people have a problem or cervical spine lumbar spine. This kind of crowd in exercise, in addition to add muscle or lose fat, the more hope to make yourself outside the more healthy.

Neck lumbar problem mainly due to long sit-ins less dynamic lifestyle, and bad body posture cause, from pathology perspective, its various issues and neck and lumbar muscle muscle fatigue and contraction ability have a close relationship. Therefore, prevention and cure cervical lumbar problems first will start from the surrounding muscle. Suspension training is lasting musculoskeletal for the purpose of improving the mechanical change spine correction, especially the spine to strengthen the stability, improvement of carotid lumbar problem has significant effect. In the process of suspension training, improve the bone and joint, ligament, haemal circulation, increase metabolism process, to make bones organic composition, inorganic composition reduced, increase the strength and toughness that spine increases, defer bone degenerative change. Suspension of training, powerful strengthen core core, can prevent the waist back softtissue, abdominal muscle and rib exercise, can increase between muscle internal pressure and chest inner pressure, help reduce neck lumbar load.

In the present fitness club competition strong cases, hanging training is to improve the quality of club competitiveness and a very good opportunity. It combines quickly and efficiently the two in training, the most important factor for the club to the maximum income per unit area, and expand the project diversity and income ability. Compared with the traditional methods of training, the suspension training need more professional coach for guidance.  

Portable Projectors

The so-called portable projectors and say pocket type projector, TRT - 3M portable projectors, mainly through 3M LCOS RGB three color projection light machine and 720P decoding technology, traditional tablet of large projector exquisite amination, miniaturization, portable and more entertaining, practical, make projection technology more close to the life and entertainment.

Usually on the projector on two aspects to have certain restriction: a). Size: usually size is the size of a mobile phone. B). Battery life: requirements in electric cases not pick up at least 1-2 hours or more endurance. In addition, the general weight not more than 0.2 Kg, some don't even need fan cooling or super small mute fan heat dissipation. Can carry (can fit into a pocket), the screen can projection to 40-50 inch or above, therefore, sometimes we will also called mini projector or pocket projector.

On 2 June 2010, the world's first cast, RGB WinCE system micro tricolor projection (TRT - 723W) ZhengYan Shanghai world exhibition.

Market involves four industry:

1. Completely replace the't a MP5 player, video, listening to English songs and playing games, e-books, picture browsing, etc,'t a MP5 video by physical impact on performance, the screen can't again big, and this thing screen at least 20 inches.

2. Instead of TV function, the machines can built-in CMMB function, can also be connected directly STB putting TV, daytime be 21 inches of watch TV, evening when 60 inches of television. Is convenient to move.

3. Instead of computer WinCE5.0 system, WIFI, wireless Internet connections directly over the Internet, directly interpolated keyboard, mouse operation.

4. The company meeting: instead of large projector, large projector price is 4,000 to 14,000 and not easy to carry, the solicitor shall demonstrate product also only for customer to the company can demo, school classroom may use this thing, the ultimate after the teacher can also use this thing.

Several major fields. Projectors, impact

1. Completely replace the't a MP5 player, video, listening to English songs and playing games, e-books, picture browsing, etc,'t a MP5 video by physical impact on performance, the screen can't again big, and this thing screen at least 20 inches.

2. Instead of TV function, the machines can built-in CMMB function, can also be connected directly STB putting TV, daytime be 21 inches of watch TV, evening when 60, 100 inches of TV, reached home cinema effect; Is convenient to move, the breakthrough tradition film space in the mountains, even if you can also share and lover of today's TV shows, movies, and MTV. Micro shots to pregnant women, no radiation, myopia crowd do sufficient protection effect, its low power consumption function, the relative to the color TV power consumption 1/1000000

3. Business office: instead of large projector, company meetings use function; Large projector price is 4,000 to 14,000 more than 1,000 hours, service life of the bulb, not easy to carry, tiny projectors, the price is in 3000 yuan, service life of the bulb 30,000 hours, three years do not need to change bulb, easy to carry, the solicitor shall demonstrate new products need only bring mini projector, namely can achieve demonstration effect.

4. Teaching: training meetings, in class teaching; Traditional projector not carry in the classroom and the school as student naughty, projector in the classroom, easy to be unsafe, mini projector damaged the students made up for portability, and then the teacher teaching vacancy only need to material deposited in projectors can show students and tell the textbooks and teaching with pen, chalk handwritten trouble.

The current mini projector home cinema effect, has accounted for 50% of the home theater market share, from 2009 to 2010 in just one year, projection into the forces of households cinema has defeated color TV dominate the market peak, especially its unique CMMB function and answering set-top box directly watching TV functions, processing built-in memory, can download latest network movie and listen to the song, and other functions, is already can replace TV, mini projector will dominate the future home theater market.

In addition, micro shots to pregnant women, no radiation, myopia crowd do sufficient protection effect, its low power consumption function, the relative to the color TV power consumption 1/1000000. Even see 1 years of TV also don't use a color TV watching 1 day electricity, completely impact the health, safety and environmental etc for future social development index, make amazing contribution, stood at the top of green world as leaders army.  

Soft Switching

The soft switching  is a function for next generation network NGN entity, which provide real-time demand business call control and connection control functions, is the next generation network with control core. Call Simply look, the soft switching  is the realization of "traditional pabx call control" function entity, but the traditional "call control" function is and business together, different business needs call control function is different, and has nothing to do with the soft switching  is the business, which required the soft switching  provide call control function is the basic call control various business.

1, basic concepts

What is the soft switching ? In asking such questions, we often get a series of features description: it is, it is the core of NGN open framework, and it can realize call control and media transport separation...

The soft switching  concept originating in the United States. When in enterprise network environment, users adopt ethernet-based phone, by a set of based on PC Server Call control software (Call Manager, Call Server), realize to PBX (Branch eXchange, user level switches) function (IP PBX). For such a set of equipment, the system does not need to separate networks, but only through laying with LAN sharing can achieve management and maintenance unification, comprehensive cost far less than the traditional PBX. Because enterprise nets environment on equipment reliability, billing and management demand is not high, mainly used for satisfying the communication demand, equipment threshold low, many equipment shangdu can provide such solutions, thereby IP PBX application has achieved great success. Inspired by IP PBX success, in order to improve comprehensive network operation efficiency, the development of the network more more reasonable, open, better service for users. Industry puts forward a kind of such thoughts: will the traditional exchange equipment components, divided into call control and media processing, using standard agreement between H248) and (MGCP, mainly using a pure software processing, hence, Soft Switch (the soft switching  technology arises at the historic moment.

Once the soft switching  concept put forward and soon got the wide recognition of the industry concerned, and Soft Switch ISC (International Consortium) was established in the soft switching  technology more quickened the pace of development of relevant standards and, the soft switching  agreement got IETF, ITU - T International organization for standardization of such attention.

According to the definition of Soft Switch BBS, Soft Switch ISC is based on group nets use SPC software to provide call control function and media processing phase separation equipment and systems. Therefore, the basic meaning of the soft switching  is to call control functions from the media gateway (transport layer) spinoff, through the software to realize basic call control functions, thus realize calls the separation of transmission and call control, for control, exchange and software programmable functions establish separate plane. The soft switching  mainly provide connection control, translation and choose road, gateway management, call control, bandwidth management, signaling, safety and call detail records, and other functions. Meanwhile, the soft switching  will also network resources and network capacity, enveloped by standard open business interface and business application layer is linked together, can easily provide fast on the network new business.

Cisco systems Asia Pacific NGN/VoIP chief technical adviser YanKang argues that, though "the soft switching " is the NGN debated, but people on its concept still some specious. He said: "' the soft switching  'Soft switch from the term can say Soft switch translation. The term borrowed from the traditional telecom domain the' hard 'processed net switch' concept 'switches, what is different based on group to emphasize its online call control and media transmission bearing the meaning of separation.

The soft switching  is an evolving concept, contain many functions. Its core is a using standardized agreement and the application programming interface (API) open system structure. This is the third party to develop new applications and new business opened the door. The soft switching  system structure of other important features include application of separation (DE - coupling is a marketing method), call control and load control.

2, the soft switching  system thought vindictiveness

The soft switching  technology distinguishes other technology, but also the most remarkable feature of the core idea of three basic elements are:

2.1, open business generated interface

The soft switching  to offer business mainly via API and "way is to provide application server" matching networks business new synthesis. Meanwhile, IN order to better juggle existing communication network, it also can pass IN INAP and already available IN the SCP cooperate with offering traditional intelligence business.

2.2, comprehensive equipment access ability

The soft switching  can support many of the agreement, so that to various access equipment control, utmost ground protects user investment and give full play to the role of existing communication network.

Based on the running 2.3, strategy support systems

The soft switching  adopted a and traditional OAM system completely different, based on strategy (Policy - based) ways to complete the realization of the function, operation support system according to certain strategies on the network characteristics, intelligence, centralized real-time adjustment and intervention, to ensure the stability and reliability of the whole system.

As packet-switched network and traditional PSTN network fusing new solutions, the soft switching  will PSTN reliability and flexibility of data networks combined well up, is emerging operators to enter the new technology voice market, but also the traditional voice network to voice the way the group. At present the soft switching  in the world, as the next generation network (NGN) core components, has been more and more accepted by the operators and adoption.