MHP (Multimedia Home Platform)

MHP (Multimedia Home Platform) is developed by the DVB Alliance as a standard. DVB working as a project that began in 1997. DVB-MHP's work not only cover the application program interface API, but also the home digital network (IHDN) and the local cluster, which aims to standardize the family platform, which the successful application of interactive multimedia for the future is critical. It also can be seen as a pure broadcasting DVB interactive TV applications to the natural upgrade to promote the TV from analog TV to digital TV transition. Technical Features MHP set-top box middleware mainly defined the overall structure, transmission protocols, content formats, Java virtual machine and the DVB-J APIs, security, layers of detail, the application status and performance of the application automatically starts, etc., also defines the specific application signaling. Architecture MHP is defined as three layers: resource layer, the system software layer and application layer. A typical level of resources, including: MPEG processing, I / O devices, CPU, memory and graphics systems. System software layer to application layer provides an abstract visual platform, through the implementation of an application manager (also called the navigator) to manage the application on the MHP and MHP. Kernel MHP's core - the essence of the system is a middleware software, middleware and other difference is that, MHP middleware is not a proprietary middleware, which is an open, unified middleware. MHP standard only defines API interface, it does not give way to achieve the MHP, therefore, to achieve specific programs mainly by the MHP middleware and set-top box manufacturers are given. Many software packages provide the common platform API. MHP application simply by specifying the API access to these platforms. Low-level API with the specified resources and require a mapping between system software. MHP based on the DVB-J basis. DVB-J, including Sum Mircosystems's Java virtual machine.

Server Cluster

Server clustering refers to the number of servers together with the same service, it seems as if the client is only a cluster of servers can take advantage of multiple computers for parallel computing to obtain very high computing speed, you can also use multiple computers to do backup, allowing any machine is broken or the entire system to normal operation. Server cluster Once installed on the server and run the Cluster service, the server can join the cluster. Clustering operation can reduce the number of single points of failure, and to achieve the high availability of clustered resources. The following sections briefly describe the operation of cluster creation and cluster node behavior. Note: For information on installing a cluster server, see the Windows server 2003 product family to help and Deployment Guide. Creating a cluster Product contains a server cluster to install the cluster software on the server and create a new cluster, cluster installation utility. Create a new cluster, the first choice as the first member of the cluster on a computer running the utility. The first step is to determine the cluster name and create the cluster database and initial cluster membership list to define a new cluster. Windows server 2003 Cluster Management Cluster has a new setup wizard and command line interface created using the cluster.exe (from remote to create) a cluster of features. The second step is to create a cluster, add all cluster members to use for shared data storage devices. This will create a new cluster with one node, its own local data storage devices and cluster shared resource - usually a disk or data storage and connection media resources. The final step is to create a cluster in another cluster member will be running on every computer setup utility. Whenever a new node to the cluster, the new node from the cluster are automatically members of the original copy of the database access to existing cluster. When a node joins or forms a cluster, the Cluster service updates the node's private copy of the configuration database. Form a cluster If the server is running the Cluster service and can not find the other nodes in the cluster, which they can form a cluster. To form a cluster, nodes must be able to obtain exclusive rights to the quorum resource. When the initial formation of a cluster, the cluster will include the first node cluster configuration database. Whenever a new node joins the cluster, the new node will obtain and maintain a local copy of cluster configuration database. Quorum resource recovery log with (which has nothing to do with the same node cluster configuration and state data) stored in the form of the latest version of the configuration database. The cluster is running the Cluster service uses the quorum recovery logs to do the following: to ensure that only one set of activities, the node can communicate with each other to form a cluster Only when a node can get right to the quorum resource control, it allows it to form a cluster Only when a node can be the same communication node controls the quorum resource, it allows it to join or remain in the existing cluster Other nodes from the cluster and the cluster service management interface point of view, when the formation of a cluster, each node in the cluster may be in three different states in one. Event handler will record the state, event log manager will be copied to the cluster of these states to other nodes. Cluster service states are: Offline. At this point the node is not completely valid cluster member. The node and its cluster server may be running, it may not run. Online. At this point the node is completely valid cluster member. It comply with the cluster database updates, the arbitration algorithm to exert their influence to maintain the heartbeat communication, and can own and run resource groups. Suspended. At this point the node is completely valid cluster member. It comply with the cluster database updates, the arbitration algorithm to exert their influence to maintain the heartbeat communication, but it can not accept resource groups. It can only support those it currently has a resource group. The reason why the state to provide suspended, in order to allow certain maintenance. Most of the server cluster components will be suspended as online and equivalent state. Superiority First, the cluster system to resolve all server hardware failures, when any failure of a server, such as: hard drives, memory, CPU, motherboard, I / O board and a power failure, running on this server application will switch to other servers. Second, the cluster system software solve the problem, we know that in the computer system, users are using applications and data, and applications running on the operating system, the operating system they run on the server. In this way, as long as applications, operating systems, any one of the three servers fails, the system actually stopped providing services to clients, such as our common software crashes, is one of this, even though the server hardware intact, but the server still can not provide services to clients. The biggest advantage of the cluster servers for fault monitoring is based on the application, that is, as long as the application server stops running, other associated server will take over the application, without regard to the application to stop running what are the reasons.
 Third, the cluster system can solve the human error caused by the application system stops working, for example, when an administrator to a server improper operation of the server goes down, so running on this server application will stop running. As the cluster is to monitor the application, so the server will take over the other related to this application. Shortcoming We know that the application of the cluster is only running on one server, if this application fails, the other a server will restart the application to take over the ark of the data in the shared disk area, thereby enabling the application of normal operation. We know that over the entire application process generally requires three steps: to detect and confirm the failure, restart the backup server applications over the shared data area. Therefore, in the process of switching will take some time, in principle, different sizes depending on the application of the switching time will be different, the larger the longer the application switch.

Nine nutrients to meet the man of strong build body

In a large contingent of male sub is definitely the main force, in addition to not love sports, men ignore the common problem than not control the body's mouth but also to the strong male body that suffers the threat of nutritional imbalance, the survey showed: 30 ~ 45 year-old male has up to 65% of the nutritional imbalance of 30% in serious condition. "Nutritional imbalances," the words do not love for a sport, more than 8 hours per day and computer time as partners, at least three times a week for dinner entertainment for men is no exaggeration. The result is long-term nutritional imbalance, no matter how iron body also will eventually flaws - sexual frustration, hypertension, high cholesterol and other diseases are associated with pleasant tongue only ignore the GI diet. Now, please with the experts, conditioning the body, a balanced diet. 1, to maintain immunity must - vitamin A study found that vitamin A has increased immunity and anti-cancer effects, but also to protect the vision of great benefit. Intake - every male's normal daily intake of vitamin A 1.5 mg - the equivalent of the vitamin content of a piece of cheese, and half a bowl of steamed carrots and vitamin A content is it 4 times. Food sources - foods rich in vitamin A, animal liver, fish, apricot and melon. Experts claim the best daily dietary supplement of vitamin A, no additional supplement tablets, as easy to add too much poison, too far. 2, decompression necessary elements - magnesium studies have shown that regular intake of magnesium can reduce heart disease, lower blood pressure. In addition, magnesium can also enhance fertility and improve sperm motility in semen. Intake - 350 milligrams or so better source of food - you can include two bowls of porridge meal plus skim milk and a banana for breakfast to get the daily magnesium requirement of 2 / 3. Kaobai Shu, beans, nuts, oat cakes, peanut butter, whole wheat flour, green leafy vegetables and seafood are also rich in magnesium. 3, protects the heart of the hero - Vitamin C Vitamin C can enhance the immune system, reduce the risk of heart disease and stroke, gums and teeth will help prevent cataracts, accelerated wound healing, relieve asthma, infertility treatment has some effect . Intake - per person per day of vitamin C intake of 30 mg or so like, even men should be noted that smoking increases the amount of supplement, but do not add more than 35 mg. Food sources - an adequate supply of vitamin C can delay aging. Kiwi, oranges, lemons, grapefruit are good sources of vitamin C. 4, cholesterol nemesis - Vitamin E studies have shown that vitamin E can reduce cholesterol, prevent platelets in the arterial concentration, enhance immunity, remove the body of impurities, to prevent cataracts. Intake - no more than 300 mg. Food sources - foods rich in vitamin E, almonds, peanuts and pecans. If you can not protect from diet get enough vitamin E, it is best to take vitamin E capsules, like every one, do not overdose. 5, intestinal health guarantee - more fiber food high fiber content of the diet to reduce the incidence of colon cancer (colon cancer in men susceptible to the third), you can also control diabetes glycemic index, even help you lose weight. Intake - our ideal daily intake is 18 to 35 grams, while 70% of the intake is less than half of the people. Source of food - more food with fiber whole wheat bread, seaweed, Cumi, strawberry, pear and a variety of stem edible vegetables such as broccoli and carrots. 6, the source of life - all of the nutrients in the water, the water the most important, especially for those people who are muscular, the muscles contained three times more water than fat. Ordinary male body, muscle accounts for 4O%. Water lubricates joints, regulates body temperature, the water supply to the human body can also contain various minerals. Intake - average person needs at least 4 liters of water per day, equivalent to eight regular bottles filled with mineral water. If you are a favorite sport of men, and that the amount to be doubled. Food sources - not just mineral water, we like the juice, green tea and vegetable soup contains water needed each day. 7, the achievements of male beauty - of zinc in the human body has enough zinc to ensure strong sexual desire, sexual function and reproductive capacity in normal health, doctors used zinc to treat impotence. Zinc can also accelerate human wound healing in resistance to disease also has a significant effect. Intake - "American nutritional standards recommended list," with the men, the normal daily requirement of zinc is 15 milligrams, but the actual intake is often only 2 / 3. If a large amount of exercise is more zinc deficiency, because men sweat more than women, the loss of zinc. Food sources - block 11O grams of lean beef provide half day requirements, and other zinc-rich foods are turkey, seafood, cereals and beans. 8, away from the threat of bladder cancer - Vitamin B6 Vitamin B6 can prevent skin cancer and bladder cancer, patients can not protect the kidney stone disease (men, women, the incidence of kidney stones twice), but also for the treatment of insomnia also have a certain role. Intake - you only need to 2 mg per day of vitamin B6-equivalent to about 2 large bananas content enough. Source of food - a good movement of men consume relatively more of vitamin B6, therefore, the table can be more than a chicken or potato, you can also eat an avocado (avocado) and the amount of sunflower seeds, pine nuts are rich in oil and the like nuts. 9, endurance guarantee - this chrome minerals necessary to sustain life can reduce cholesterol levels, increase endurance athletes, bodybuilders can also increase muscle and reduce fat. Intake - ordinary men at least 50 micrograms of chromium a day, restless men need 1OO ~ 2OO mg. Food source - the best source of chromium is all seafood, such as fish and shrimp. In addition, from brewer's yeast can also get daily requirement of chromium, so drank a bottle of beer for men is a safe choice.

Cardio kickboxing slim your waist

In the United States of America popular aerobic exercise gym, sports medicine expert thinks, this motion is a combination of boxing, Taekwondo Tai Chi, basic action, not only large amount of exercise, can also relax the pressure, very suitable for modern people.

The music rhythm punch, kick aerobic exercise, due to strong transient explosive force, stretching rate, amount of exercise greater than traditional aerobics, jumped fifteen to twenty minutes, the equivalent of about thirty minutes of aerobic dance, at least can consume two hundred or three hundred calories to lose weight, for young people, which is the full effect of the" downsizing" movement. But the motion human body must be in aerobic condition, simple body reflect normal breathing, dizziness is not, can also pass through the pulse measurement: heart rate per minute in 220 is subtracted from the actual age then multiplied by 60% to 80% for the best aerobic training state.

In addition, the fist, kick boxing, also helps to relieve stress. Modern people generally work pressure, sometimes have to" beat " the idea, the aerobic exercise punches, require abdominal contractions, big growl, can not only exercise to usually not easy to use the muscles of waist, hard punches, yelling is good method to relieve mood. By using this method to give vent to your feelings, let physical moderate consumption, no wonder many skip" boxing" people say, it is good. Commuters to try, attention must be paid to the elbow, knee, ankle joint using a sheath, to protect the tendons and ligaments, avoid injury. In addition to do 10 minutes warm-up before exercise, make joint, muscle relaxation and start the fist. If there is found after exercise muscle soreness phenomenon, it is best to ice. So if violent friend best suited for this move. But it should be noted:

1 although in boxing, imagine an imaginary enemy, but also not too resentful, and systemic stretched too tightly, or punch, kick too hard. During exercise the body relax, even hand punches, also can drive the waist.

The 2 movement, elbow, joint locking, the kick is the same, the knee is not stretched too tightly, so as to fitness didn't hurt.

The 3 boxing exercise intensity, such as hypoglycemia, you must have a rest and then decide whether or not to continue.

4 when these things happen, can stop the practice: leg fatigue, pain, discomfort, partial body appears, dizziness, rapid heart rate. Well, from now on, start your next round of beautiful movement!

Micro Single

In the micro compact, interchangeable lens digital camera, Sony used" micro single" camera. Sony will" micro single" camera is positioned to a range of digital SLR cameras and card machine between the cross product, its structure is the most important features of no mirrors and prisms. " Micro" is the trademark of Sony company.

Brief introduction

A single is a new word, the word is Sony Company specifically for the Chinese market by creating, micro was given two meanings: Micro Mini Compact, single SLR corresponding quality, that is to say the word is expressed in this camera has small volume and SLR general picture. In 2010 June, Sony is " a single" camera -- NEX-5 and NEX-3. " A single" camera is portable, professional and fashion combined features. " A single" camera for the customer base is mainly the hand to get a very good picture expressive force, on the other hand it wants to obtain a compact digital camera light target customer group. In addition because the 18mm flange distance, and now the mainstream SLR CMOS sensor size the same reason, very suitable for switching in earlier years passed down the massive manual lens. So NEX micro single in photography enthusiasts also has the market very much.

Origin

In the Sony launched the " micro" camera before, Olympus, Panasonic, Samsung and other consumer electronics giant has launched without a mirror, using an electronic viewfinder, like the SLR as replacement lens product, called" single electric camera". Sony personal audio and video of minister of Ministry of career of hand generation wood Yan said," micro" is specifically targeted at Chinese market brand, its products are endowed with miniature SLR and two layers of meaning: camera miniature, small, portable, can also like the SLR camera lens as replacement, and to provide the same quality and SLR camera.

Technical principle

" In the professional machine in the most fashion, fashion in the machine in the most professional", became the" micro" camera from the SLR cameras and card type digital camera subtext.

" A single" camera using same and SLR camera specifications sensor, cancel the SLR camera on optical viewfinder components, without prism and a reflecting mirror structure, greatly reduces the lens mount to the photosensitive element distance, therefore, can be obtained than SLR more compact body, also ensure that the imaging quality and SLR same.

Multiple Lease

SaaS" multiple lease" is a concept, a plurality of the company data and business processes managed stored in SaaS service providers on the same server group, equivalent to the service providers will be a set of online software and leased to a number of companies, each company can only see their own data, by service providers to maintain these data and software. That is to say, a number of companies to log on to a website, but after seeing the login interface and data, different companies in different.

This model there are both advantages and disadvantages. Benefit is the seller relative to each customer average hardware and maintenance cost is low. The seller will this cost advantage is allocated to customers, customers need to spend great efforts to protect their own system platform. Service provider synchronous updating hardware software, customers do not need to pay extra.

But there are also some drawbacks, since the SaaS mode is determined by the service provider to maintain the system, so when the service provider to the system upgrade, customers can also follow the upgrade. This is a bit like China before eating the mess age, by in the center of unified distribution. For example, in June 1st, service providers will release a new version, and customers can use the new version of the system. Indeed the only way, otherwise it is called the" rent". And if the service provider supports a variety of different versions of the system, then the cost will be increased accordingly. Of course, the vast majority of customers will be more like an upgraded version of software.

30 year old man to help you get rid of a beer belly

Each" beer belly" birth have a capable of evoking praises and tears the sad history of tears of blood. Long time sedentary office, because of the pressure of work and lack of exercise, or because the mood is depressed and from food or alcohol for comfort, these are white-collar men lost on the campus of the University of the shapely reason. And your weight and your stress will form a vicious spiral.

30 year old man lose" beer belly"

Most people are under pressure to overeating, indigestion caused by overweight, so more susceptible to pressure effects. Some people think that" laugh and grow fat", fat is a kind of be light of heart from care performance.

From a psychological point of view, this argument is not without reason, that is why most men married after the body like a balloon was blown up as quickly as one of the causes of obesity.

Although males do not advocate" the skinny beautiful", but became obese is not a good thing, at least you'll hope with the aid of a mirror can see his belt buckle.

Man 30 is the weight loss time

The male and female parts easy to get fat," beer belly" is the young man most headachy thing. The average man 's body has about 30000000000 fat cells, but the growth as the age, these cells will be heavier.

Therefore, almost every man over 30 years old is always heavier than before some. And his gene, hormone and slowed down the new supersedes the old. Begin to produce an effect to his abdomen. However, beer belly is not inevitable, remove it and you will be more beautiful, energy will be more abundant, also can live longer.

Now you no matter what you do, you will still have the heat consumption way. Cycling, running, swimming, walking, aerobic exercise is the most effective way to consume the body heat, what are you doing it doesn't matter, as long as it can make your heart beat faster for at least 20 minutes.

Science proves, reducing weight is systemic sex, will not only lose a part, while the other parts remain unchanged. So the fat can not be in a hurry.

In fact, training opportunities are everywhere: put the car a bit further, you can enjoy the fun that take a walk; into the building, do not take the elevator, they climb; rest when not hesitate to walk and not to drink coffee, coke, because walking than any kind of drink can make you mind awake.

Too fat, disease also came, hypertension, coronary heart disease, diabetes and other line came, so after 30 years old man a word of advice: to lose weight.