Beach volleyball introduction

The red sun, the clear sky, blue sea, the white sand beaches, flocks of barefoot of men and women, wearing sunglasses, dressed in the swimsuit, gorgeous in chunks of beach pitch, kept running jump to the ball, catching, spiking, save the ball, win the crowd flares of cheering. This is beach volleyball. Some people predict that in the near future, the beach volleyball will become the most popular sports one.

Beach volleyball is on the basis of indoor volleyball unfolded. It was a kind of game to swim spare time and then gradually developing as a sports game. In 1940, the United States, Brazil and nations organized the beach volleyball. 1976 the United States have held the first prize in 1979, the game began pro beach volleyball, 1982 formed U.S. professional beach volleyball association.

In February of 1987, international player in Brazil hosted the "first world beach volleyball championship" and set bonus to $25,000, the United States, Brazil and seven countries took part in the race. Since then, the support of the international player, beach volleyball, called on all countries in the world to develop up.

Brazil national has nearly 2,000 a beach volleyball court, every holiday, early in the morning they pull the tennis, buzz to play. The current 60 professional beach volleyball players, playing career is higher and higher, the bonus of $5,000 from 1976 to $60 million in 1987, travel agencies but also organized Tours a year to watch the game. In Italy, eight large-scale beach volleyball team more than 50.

Beach volleyball contest rules, basic apply international player the indoor volleyball game rules published in stadium area, the net size, frame nets height, weight and diameter ball aspects, no major differences. The difference is bigger, the number two sides played two, four people, such as not to interfere with the other players in the game can begin from the off-line across, the game is permitted after substitution, serve rotation, serving his players not self-occlusion, sight, interfering with each other on the clasp mat combo and bailing ball allowed, but not allow all the light buckles or lob palm, with stoppage time for 60 seconds, as long as two team not to continue the game even suspended stoppage time accumulates computation, etc. 

WHDI (wireless home digital interface)

WHDI (wireless home digital interface) set a wireless high-definition video connecting the new standards. It provides a high quality, without compression wireless connection. Its USES MIMO technology and OFDM modulation method can realize as high as 3Gbps transfer rates. Work in 5.875 GHz ~ GHz band 4.9 20MHz or 40MHz channel, that complies with the global 5GHz spectrum regulation, within range is 30 meters, can penetrate walls, and less than 1 millisecond delay.

WHDI support new equipment, consumers connect the A/V equipment and consumer content, can range covers the whole family, WHDI allows users to connect any of the family source to any location display. Use the television, in the sitting room WHDI can display the bedroom broadcast blu-ray player, hd DVD players, kitchen TV shows in family office PC content, and game entertainment can in the basement, without having to move projectors, play the game console from the children bedroom or the basement. This new standard, convenient WHDI video transmission by incompressible hd video player, independence, multiple indoor hd video connection to use a revolutionary video modem way to cover the entire family, support.

WHDI specifies the hd video transmission, and audio and control. Comprehensive WHDI control protocol would enable users to control from the family can concentrate all A/V equipment, transmission almost no delay, users will not meet the voice and video asynchronous problem, also can use WHDI connected network video game entertainment audio.

WHDI characteristics

No video transmission of compression

WHDI technology and other wireless technology, the most essential difference is that it can transmit full hd without compressed audio and video stream of. Current video wirelessly transmitted by mainly through two ways: one kind is the audio on launch by compressing stream wireless transmission, in the receiver uncompressed image way to WIFI and UWB technology represented. Another way that direct transmission through wireless video source output shadow streaming video to the receiver, output image, with WHDI represented. Currently only WHDI technology can realize industry.

Teleport without delay

Because WHDI technology provides enough wireless bandwidth, not through compressed way to transfer, dispense video in the compression and decompression process, so take longer to ensure transmit video frequency no delay.

Resolution up to 1080P

The WHDI technology support a video resolution 1920X1080P. Subsequent through software upgrades, can support 2K X 4K resolution to. The equivalent of 4 times 1080P.

Supports 7.1 channel

In addition to send video beyond, the whole hd WHDI technology will support 7.1 channel (PCM) audio transmission, sampling rate as high as 24bit, 192KHz.

The fax channel 100K

WHDI technology itself apart from being able to transmit audio and video outside, also provides the 100K it channel. It set the aim is to channel allows HDCP control protocol and receiver on launch between the reciprocally verified. At present domestic WHDI modules manufacturer through this channel the union company has realized the USB keyboard mouse it functions, namely UWTC (USB Wireless Transmission Control) technology, and mastery of the multi-point touch remote Control technology.

Support HDCP2.0 technology

WHDI technology for HDCP organization set separately HDCP2.0 technical standards. HDCP2.0 can allow users through WHDI technology to realize a much, much more HDCP interaction of the authentication. Namely HDCP2.0 technology allows a has video sources of content protection protocol in multiple display terminals shows at the same time. This HDMI1.2 standard in is totally impossible. 

Security Audit

Security audit is a new concept, it refers to the professional auditors according to relevant laws and regulations, property owners of the commission and management authorities of computer is authorized, the relevant activities under the network environment, the systematic or behavior and independent inspection validation, and makes the corresponding evaluation.

introduction

Security audit is a new concept, it refers to the professional auditors according to relevant laws and regulations, property owners of the commission and management authorities of computer is authorized, the relevant activities under the network environment, the systematic or behavior and independent inspection validation, and makes the corresponding evaluation.

Including content

Security audit involves four basic elements: control target, security vulnerabilities, control measures and control test. One, the control objectives is to show enterprise according to the specific of computer application, combining the actual formulate unit of security control requirements. Security hole refers to the security of the system weak links, easy to be interference or destroy the place. Control measures is to show enterprise for realizing the safety control target set by security control technology, collocation method and various regulating system. Control test is the enterprise various security control measures and scheduled safety standards to determine the consistency of comparison, presence and the control measures are implemented, whether to prevent leaks whether effective, evaluation of enterprise security measures dependence. Obviously, safety audit as a special auditing items, request auditors must have strong professional technical knowledge and skills.

function

Security audit tracking function is: to help security personnel audit system reliability and safety; Of the system operation to interfere with apparent attempt to timely report to the security console, take timely measures. General in network system to establish the security control testing center, responsible for system safety monitoring and control, processing and audit. All the security service function, with all the hierarchy network audit tracking system relevant. 

Climbing stairs upstairs fitness downstairs injury body

Now, as people improve fitness awareness, climb stairs this already economy and convenient way to exercise the welcome by many people. Concerned expert points out climb stairs also has exquisite, climbed the beneficial body, but down the stairs is adverse to the body.

According to expert introduction, climb stairs upstairs equivalent to doing aerobic exercise, can exercise heart function, also can exercise leg muscles, can have certain exercise efficacy. But down the stairs, knee, ankle to bear the weight of the whole body, to repeat this action, will increase the level of activity for these joints, compression strength will rise dramatically by the possibility of joints wear increases, adverse to the body.

Experts also special remind in old people or the body obese young man with climbing stairs method, the master physical exercise discretion and methods. Climbing stairs speed and duration should grasp good, just start exercise when, should adopt slow speed, gradually extended time manner, along with exercise level, gradually speed or extend the duration. Also, exercise should always with moderate intensity, to not feel sweaty for degrees.  

Nine kinds of sports injury how come

1, yoga

Whether star big shots of mortals, people still have great interest in yoga, but if not with the correct method and stuff with others to fold, fold to imagine that it can bring you much sport harm! Yoga is a lot of factions, every kind of focus is different. According to his own physical status find suitable faction to practice is key. Each exercise, best of yoga, tuning from basic breath gas begin. The more don't make more than the body of action, in order to avoid strain burden of body.

Easy to hurt: ham and hip, knee, back muscle.

Advice to you:

· note ZhongDuanBo gas and inspiratory mediate, with action coordination.

After about 2 hours, not to do yoga.

· yoga faction is numerous, want to choose to suit their own practice, don't literally mixing do.

2, swimming

Swimming is the sports body can activities. Is healthy restricted movement of at least, whether the knee is bad or have asthma, can through swimming to exercise.

Easy to hurt: the shoulder and back muscles.

Advice to you:

· swimming the most urgent is certain to do warm-up exercise! Because swimming will sport to muscle in the body, if you don't do warm-up exercise, it is very easy to strain or cramping.

· swimming freestyle, hands rotating radian.

· breaststroke and butterfly, thigh Angle need not excessive opened.

In breath, carrying too much, lest head don't back strain.

3, jogging

Hear jogging is with muscular body? Jogging is one of the activities for urbanite, whether really are running on the streets, or in a treadmill run, if can make habits, for body function and health is good.

Easy to hurt: ham, hip, knee, ankle.

Advice to you:

· can't neglect by slower in foot repetitive and jogging regularly wallop, so you must do warm-up activity, only with a good exercise habits don't cause ligament injury tendon.

· close-fitting running shoes, and change regularly, run long, shoes shock force will be worse. · maintain stable pace, and do not break increase mileage.

4, aerobic exercise

Twomore a-one more ~!!!!! Looking at assembly complete one followed, yes! Rhythm movement Aerobic exercise is there's so much energy! The whole people follow High up. Aerobic exercise although whole moving, but still need to make a warm-up. Knee, spine with questions or disc herniation person shoulds not be done.

Easy to damage: knee, bow and heel feet.

Advice to you:

· note heartbeat not more than frequency. (formula: 220 - age x 0.85).

· avoid sharp shock, should strengthen slowly.

· end to do exercise extend are held to reduce lactate build-up, muscle pain.

· do aerobic exercises must put on running shoes, even if the floor is very flexible, or need shoes to absorb energy wouldn't hurt. Another 30 to 60 minutes each jump.

5 and badminton

Suddenly appeared to feel the dream? Firm plait girl, elegantly dozen badminton. Badminton is compared with tennis activity is much smaller, but in catching, kill the ball also pretty easy occurrence sprain waist, strained back expansion such sports injury. Muscle Easy to hurt: the waist, back extender muscle.

Advice to you:

Be careful, ankle to save the ball, avoid injury.

Before, looking for suitable sites play fast and familiar with venues, lest moves were injured.

· due to play and injured site, should strengthen the protection measures, lest the old disease recurrence.

6, climbing

Don't think mountain climbing is the elderly talents do exercise, climbing is actually great exercise, and while hiking opportunities contact the nature, is beneficial to body and mind. Mountain climbing for the whole foot, especially heel pressure are large, if climbing midway is not rest is very easy to generate sufficient with inflammation.

Easy to damage: hip, sufficient with department.

Advice to you:

· don't wear new shoes, mountaineering shoes or borrowed in old mountain climbing, the shoes can.

· climbing, slow heed to yourself afraid after rain, especially the steps to avoid slippery and happen sports injury.

· even climb slowly, and also must rest to stay fit.

7, bowling

Bowling, although is already depended movement, but still has many advocates, just put on shoes, always can enjoy pleasant sensation, feel the bottle down is very good. Bowling this seemingly both leisure and relaxed movement, actually moves to part still pretty much. From hand ball, thighs opened squat low, reach the ball forward throws, every action, might get hurt.

Easy to damage: thigh muscle, knee, fingers, wrists.

Advice to you:

· choose to suit oneself the ball and close-fitting shoes strength.

· beginners play three innings, and no more than hundreds of bureau is advisable.

· bowling process don't play, so easy to produce risk.

8, tennis

Movie playing tennis people wearing white shorts, short skirt, waving the racket, on-court to move around. Tennis actually don't like looks as easy as! Because again want to run, and exercise to play is great.

Easy to damage: hands and feet, and upper limbs and back muscles.

Advice to you:

· tennis most prone to is tennis elbow, because need very hard, elbow becomes very brawny, relatively, the golf ball people will have golf cubits, only it is happened in his left hand, and tennis elbow is on the right hand. In addition, playing tennis, ankle also easy to hurt, we must pay special attention to!

· backhand ball, should with elbow as point; Man of less usable while hands dozen backhand ball.

· ACTS accordingly, not to score, make more than the body can load action, arm feel pain when, should immediately rest.

9, bicycle

Bicycling is using the movement, shook activities can strengthen the quadriceps muscles power, also slow the occurrence of osteoarthritis of the knee. Although this is joint exercise, but burden at least don't ride too long. Lest appear waist sour backache phenomenon.

Easy to hurt: the waist, WeiZhui, foot muscle membrane.

Advice to you:

· regularly inspecting bikes, body, braking condition, handles, bell etc is in good condition, lest appear accident.

· must put on shoes and socks riding, to mitigate the impact of the pedal to the foot.

· everyday ride 30 minutes, can strengthen your heart function; 50 minutes, can accelerate body fat burning.

TIPS: movement, the next body after how many will have ache phenomenon, if the very long time no movement of pain can be more serious. This is because we produced by the activity of lactic acid stimulation and appear normal phenomenon, don't need to worry too. 

Tegra

Tegra is in a general processor (i.e., CPU, NVIDIA called "Computer on a chip cluster generator attempts" chip Computer), can provide for portable devices high performance, low power consumption experience.

Tegra applications

The first batch of products Tegra 2, respectively is Tegra 600 and Tegra 650, based on the ARM 11 architecture. Before the release of mobile applications and Tegra processor APX2500 will also be incorporated into product line, renamed Tegra APX 2500. Can say, NVIDIA from mobile phones and has been aimed at the two starting point in the same direction PC - portable Internet equipment, it amalgamation of the Atom processor and has launched the Intel great minds think alike.

NVIDIA Tegra called "part on a chip computer", because this single chip not only contain an ARM 11 processor core, its internal also include graphics processing unit, multimedia processor, memory and peripheral equipment, etc. A single shortage coin size of the low power chip can independent realize various functions. And the Intel to PC as the starting point, the ARM architecture than x86 framework of mobile processor with Tegra more like a development as the starting point. It can't run the Windows XP PC x86 operating system, but such applications on mobile phones the ARM architecture lightweight for more can adapt it operating system of high-speed low power consumption demand.

NVIDIA mobile equipment business general manager Mike Rayfield says, Computex later this week, at the conference on can hear each big manufacturers talk about Tegra new product design based on the news. Based on the first Tegra MID mobile Internet devices will all come from Taiwan manufacturer, the price of around $200 to 250, expected by the end of this year's Christmas shopping season listed, high-performance graphics processing (game) and hd video decoding is relative to other portable platform Tegra platform the biggest advantage.

Nvidia Tegra will be HuangRenXun pointed out that the further development of another important products. Tegra is a adopts chip system design (system - on - a - chip cluster generator attempts) chip, it integrates the ARM architecture processors and Nvidia Geforce GPU, and built-in other functions, the product mainly to small equipment.

Tegra brand promotion

In order to better in China areas to develop NVIDIA (British weida ™) brand promotion activity, make NVIDIA (British weida ™) products in China more pervasive and widely from memory, on 30 November 2009, NVIDIA® plays; British weida Tegra ™ ™) will be officially opened in China - "figure farce Chinese ™". By then, "NVIDIA Tegra ™) (British weida ™) (figure farce ™ group name" in both Chinese and English, will be used in all NVIDIA (British weida ™) public relations, marketing and other promotional materials, and NVIDIA (British weida ™) partners public relations, marketing and other promotional materials. "Figure farce Tegra ™" with "™" must be combined use of English name, not can be used alone, and sequence, namely "can reverse Tegra ™" before, "figure farce behind. ™" 

Vulnerability Scanning

Definition: usually refers to based on the vulnerability database, through the scanning methods, to specified distance or local computer system security vulnerability testing, found a kind of exploitable vulnerabilities safety testing (penetration against) behavior.

Vulnerability scanning is on your computer to perform comprehensive scanning, check your current system is flawed and if a loophole is in need of repair, otherwise once the computer is very vulnerable to network by computer hackers or injure the hole remote control so the consequences would be catastrophic for the protection, so the vulnerability scanning computer and Internet security is indispensable, and need every week on a scan and a but found a loophole will immediately repair, some loopholes system itself can repair, while others need to manually repair.

Vulnerability scanning results

Vulnerability scanning results are divided into: 1 recommend 2 optional 3 wouldn't recommend it.

1. Recommended: says system has existence of loopholes, need to install a patch to repair for computer security is very important, therefore recommend patch, as soon as possible for installation.

2. Optional: said about their computer of the selective repair, to this kind of patch, everybody should be in on the computer is fully understand its own situation, come again for selective repair.

3. Do not recommend: says if repair these patches, may cause the system problems such as blue, unable to start, so for these loopholes, I suggest you do not repair, lest cause greater computer trouble-shooting. Of course these loopholes and is often not have too big for computer damage.

Website scanning loopholes

As with system could website loopholes in, also need timely scan to found the general scan website time cycle is long, so usually adopts website platform to scan, billion web security detection platform thought for such a scanning tools.