2010年9月29日星期三
Small Projectors are Changing Our Life
The projector will take all kinds of audio input, allowing users to directly through the norms of feed video player iPhones terminal connector, two including, allow connectivity RCA and VGA cable directly or notebook computer, the most standard audio and video equipment resources, such as DVD players, video, etc. Users can input at any time with all kinds of input source "button.
Tired of lifting heavy projection to rack, ok? M109S pocket projector for dell, you will significantly reduce your luggage operation period, still can display images in your next presentation.
People had considered it thinks micro projector is an ever make tinier - accessories and more data and media, we have in them. The company has always been and attempts to establish a miniature projector, you can put your bag, even mobile phones or computers will be even better.
2010年9月28日星期二
Can Pocket Projector Change Our Life?
The device of a mini projecter is used to project image and video from the portable media player, game equipment, digital camera, video camera. By the end of 2008 pico available, global 430 billion dollars. We have put those pico ratings for 82 (good). Our commentators say pico "temperament a huge mobile partner."
Optoma new pico projector with high-tech professionals and noisy. Why? It is said that "may first and the smallest" palm-sized projection worldwide, according to the company. 42 ounces, it only by 3-2 measures approximately 50 inch size of apple apple computer. The micro bean has its own batteries.
Sometimes, a portable printer is convenient, however. But since it was already late, if you are in your room, you need to print a few pages of the next day, you don't want to the lobby schlepping a printout. Maybe you want to print your airline boarding pass and driving directions to the airport. Or do you work in a remote site without a printer, for instance in a room. If any of the circumstances, you can often PocketJet like portable printer for 3 + may be worth considering.
Read more: http://tasha1124.blog.com/2010/09/15/mini-projector-is-with-powerful-projection/
2010年9月27日星期一
How to Frame an Oil Painting Frame
Can you through his artistic frame and a framework of the results, the cost effective will give you a satisfactory result. This article will help you how to build a great framework yourself.
How to Make a Frame
Choose the Apt Frame Yourself
How to Make a Frame
Now the frame of your oil painting is done with considerable ease and without causing a considerable pinch on your pocket.
2010年9月26日星期日
Oil Painting Lessons
The animal is painting a more complex tasks, the need to keep in mind the details, such as the long time is short, fur pelts, eyes and overall proportions. In this respect, the animal is worth to recommend making a painting a picture, copy is to produce copies as closely as possible the themes and express emotions, the special animal or bird. It can not only provide artists and practice of different skills, but also can make his versatility. Similarly, to painting of flowers, also need a lot of color, is composed of several technology, in order to get the desired results.
He is proficient in most of the traditional craft, through these courses, you will be able to more complex subject graduation, even as dreams and fantasies of their way.
Try seaview relatively more challenging task, but it is not impossible to achieve a specialized student think a lot of practice. Seaview best bloody - on - bloody by using the microchip technology application of wet paint of paint to create feather and appropriate mix of different colors. Seaview usually was filled with the cloud waves and beach, sometimes can maintain a lighthouse depicts the Angle. A beginner should remember, and draw a wave wave, the requirement of inside the need for curve.
2010年9月25日星期六
Video Projector is a Great Solution
Manufacturers are increasingly replacing traditional equipped with light emitting diode fixture for many good reasons. Led light emitting diode, or offer many advantages, traditional incandescent light. Firstly, the cause of electric consumption device far below than traditional fixtures, allow multiple units were placed in a 20 - amp circuit. In addition, the average life expectancy of light emitting diode current halogen lamps - up to far beyond 100 times. LED and stage lights are very small fire fixture, can be in a room temperature exceeds 10 degrees around the specific application.
Bottom line: you don't need to worry because of their frequent bulb changes or failure, break all performers and guests will no longer have to endure the hot pot, and set the bar and greatly improve the flexibility for fixture lighter weight, low heat emission. In addition, low energy consumption and ignore the effect of heat dispelling better light-emitting diodes (leds) make them more environmentally friendly. Finally, color mixing - as standard programming tools, most lead to different color, 167 billion dollars, well beyond the number of colors with plastic board structure. The device can make color mixing - number of available colors of billions.
2010年9月24日星期五
Features of In-Car DVD Player
Power Adpater Allows DVD Player
Car DVD Player Technology Requires to Be Improved
Car DVD Players Usually are Mounted in the Dashboard
Picture Quality is Amazing on Small Screens
Power Adpater Allows DVD Player
Shortly after, power adapter allows DVD player, car battery. In the past few years has become a car DVD player of the features are everywhere, even small miniature and SUV. Technological advances have enabled them cheap, easy to install and small enough to be installed to any place. Entertainment system is the place of standard CD players as they replace cassette player several years ago.
Car DVD Player Technology Requires to Be Improved
Technology of in car DVD player still needs to be improved. Usually is installed on the screen, the support in the ceiling for flip - down with dashboard or pattern. In-dash version also is like digital instrument panel and navigation equipment. They usually can tilt and spin, so they can in many aspects are made by the driver when necessary, more easily distracted by turned down the other passengers.
In the image quality automobile DVD players are on the surface of the same family tv screens. Clearly, & quality is the best measure, through the resolution, pixilation expression level of resolution. Fundamentally is little pixels, generate an image in the liquid crystal display screen. The higher resolution, the better is quality of the image. Dot pitch is another type of pixels measurement showed how a image. The distance between the stadiums, liquid crystal display screen represents six adjoining pixels middle. In this case, the smaller number (or short distance), better is the image.
Car DVD Players Usually are Mounted in the Dashboard
The actual DVD players are also commonly mounted in the dashboard, under a seat or in the trunk of an automobile. Multi-disk changers are popular in trunk versions so several DVDs can be loaded and viewed without pulling over to change them. Multi-disk units may also allow for passengers to view different movies on different screens where multiple LCD screens are available. This allows for front seat passengers to check the weather or get directions while the kids in the back watch their own program. As residential satellite television becomes more fashionable, viewing TV on the road is also becoming a viable option.
Picture Quality is Amazing on Small Screens
The picture quality is truly amazing especially on small screens however generally speaking the larger screens will offer higher quality. The size of a screen is commonly known as the viewable size or active display zone. The viewable size of a screen is measured diagonally, just as with standard TVs. In car LCD screens as small as 2.5 inches are becoming commonplace while in home television screens are growing larger every year.
2010年9月21日星期二
Typhoon Fanapi Hit China
In some places, force amphibious car to rescue by flooding. Fanapi has landed, and China Eastern fujian province was brought back to the boat ashore. Some people have been evacuated vulnerable region of the storm.
"Fanapi is the strongest typhoon to hit Fujian in 2010 and we should prepare for the worst," Xinhua news agency quoted Fujian's Communist Party chief Sun Chunlan as saying.
Meteorologists in Taiwan said Fanapi had brought as much as 44 inches (112cm) of rain to some southern areas. As it passed over Taiwan all international flights from Khaosiung were halted, as were domestic flights and rail services.
Many of the injured were cut by broken glass or came off motorcycles in high winds, Taiwan's Central Emergency Operation Centre said.
700 People were killed and thousands left homeless
Train Service and Flight Were Canceled
700 People were killed and thousands left homeless
Last year more than 700 people were killed and thousands left homeless in Taiwan by floods and mudslides caused by Typhoon Morakot.
Morakot triggered a storm of criticism of Ma Ying-jeou, the Taiwanese president, and his administration for reacting too late.
In order to give more effective method, video conference led a horse, and local officials Saturday urged measures to prevent major damage of typhoon.
Train Service and Flight Were Canceled
Some train service and domestic all flights were canceled and some international flights were also canceled.
The national fire protection agency says more than 60 people have been evacuated.
Television footage showed that Taiwan's defense forces deployed in lost apcs floods and other emergencies.
In southeastern China, authorities are on high alert after the state meteorological center warned. Fanapi is expected in the coastal areas of guangdong and fujian provinces after Taiwan.
The official xinhua news agency says more than 55,000 fishing port in fujian has returned to the danger of the wind.
2010年9月20日星期一
Car DVD Player Help You Improve Your Life
These are only five aspects to find a suitable car DVD player to suit your needs. Finally, you choose involves how much you are willing to spend, whether you need a particular mode of dvd player for car. After a little price comparison and consciousness, you will get the right players. Without any reason to wait, would you tried to find out the car DVD players! Give the children a wonderful moment.
2010年9月19日星期日
Paint Ghostly Midair Messages from Ipod
New Technology are going aford again
Create Suspension to 3D Graphics
New Technology are going aford again
We have seen iPads used to create touch-screen art, but it is a go forward again. People in London and communication agent dentsu, design consultant Produce a series of animation reduces in patch below. Say it is part of the future dentsu magic items.
In photography is a stop - frame animation. IPads is depicted with long exposure through space, create an eerie news in the air.
The 3D model of letters and object is the first provide a "virtual section of the cat scans," jack Schulze explanation in the video. Then they broadcast movie screen iPad as mobile, rising up through the air.
These are reflected in the dusk of the environment as mutually markets - 3 to 6 seconds, photo each map is a more animation sequence.
Create Suspension to 3D Graphics
The team to create suspension, like walking robot and other 3D graphics (but no ghosts). In a sequence, the word "manufacturing" seems to jump off the table and climb stairs. On the other hand, "future" float in a puddle. "Magic", at the same time, dancing and measures in the dark impishly garden.
IPad operator dark shadows appear in the background. Some items in a gel seem suspension. The bloomberg said: "this is explained by the black areas, not completely dark iPad screen, and the balance between the contact Angle and speed and screen movie."
More photos from mini projector here even have a book here.
2010年9月18日星期六
About Mid-Autumn Festival
It is in 15th day of Auguest (according to the lunar calendar). It is usually in or close to the full moon, when the moon appears in the most complete it during the autumn.
Middle Autumn Festival called Mid-Autumn day after the delicious snack at this time of year. Traditionally, this is the first time to meet friends and family dinner, look at the moon.
In ancient times, 10 sun scorched earth, until the field no longer plant crops, people died in this terrible drought. After the hero Hou yi scored nine suns, and save the land.
As a hero, Hou yi was obtained, and an immortal potions. Unfortunately, his later became a wicked ruler hated. Everyone, even his wife, despised him. She knew that if he immortal reagent, the country will destroy his never-ending evil. Therefore, save her compatriots, drinking potions.
She became very light, she flew into the air, and to live on the moon, she became the moon goddess, along with her jade rabbit.
In the Mid-Autumn festival, looking for the last night of change the surface of the moon.
2010年9月16日星期四
Development of in-car Entertainment System
Roewe 350 - the first intelligent network traffic system using inkaNet3G vehicles
Face of car entertainment system, the rapid development of information, many consumers will ask, automotive entertainment information system include? It is how the development process looks like? Where it was coming back to the future? Faced with this problem, may wish to let us look at the information-car entertainment system evolution.
Car radio with the deck
● Radio Times
Radio as a process of human development impact of inventions, it is also the originator of vehicle entertainment and information devices. As first appeared in 1923, the United States car assembly radios, a new era had arrived, people will enter the era of the automobile entertainment. It should be said on the radio is not attached to the vehicle on the past, regardless of the driver or occupant, chat or watch the scenery out the window when they are driving the only entertainment choice, while the arrival of radio in such a situation completely changed and entertainment as an important vehicle component life. Although the car entertainment information system has changed several times, it is still an integral part of vehicle.
The car is still a high-end configuration DVD
● deck era
1963 was a landmark time for the node, in which the Dutch Philips invented the cassette (cassette) tape, the role of a study of far-reaching invention of human life, together with the cassette tape recorder cassette tape has become a human indelible mark on life. In the cassette (cassette) recorder soon after the invention, car cassette (cassette) retractable dual-use machines appeared in the automobile, thus a cassette (cassette) and a pair of retractable dual-use machine-based component speakers car audio entertainment devices has become the standard vehicle configuration, and that is, until the 20th century, late 80s.
● Digital Age
As technology advances, in the 90s of last century, mankind ushered in the digital age, to CD, VCD and other digital entertainment devices represented have been published. As a result, car entertainment equipment usher in a big period of development. Especially with the recent years, DVD, GPS navigation, Bluetooth and other multi-functional integrated product appearance, car entertainment development along the multi-function devices, network, trace the evolution of intelligent and more highly integrated.
inkaNet3G intelligent network traffic system
● InkaNet Times
2010 Roewe cars, car entertainment product brings consumers a new information system products - inkaNet3G intelligent network traffic system. It should be said, inkaNet3G the emergence of intelligent network traffic system, as important as its contribution to the radio for the car, as a new high-tech products, it enables the vehicle into a mobile information platform to achieve a truly seamless with the Internet, convergence, the vehicle by the "digital individual" to "networking groups" truly opened the car door to the information age.
●Further reading:
Car DVD player tips
Buying tips for car DVD player
2010年9月15日星期三
Beyond Car DVD Player-Next Entertainment
The task at hand
DVD paces development
Car DVD and car video playback and entertainment are not only the ambition. In the next three to five years, it can be easy navigation, safety, Internet access.
For example, GPS navigation is with real-time update, such as traffic diversions. Auto safety can be enhanced with a camera to driver unimpeded around 360 ° of vehicles. Using wireless Internet access in the short term, many cities, surfing the web will be a sensational more ways than one.
Dream of drivers and passengers from family, the broadband entertainment will become a reality to cars, the ignition key. But the car electronics design engineer will be the first to find some way to arrange and multimedia bits from half a dozen - an unprecedented challenge.
The task at hand
Although next-generation networks will be capable of handling cars produced by the data rate of information system and engineering challenges can't provide wider pipeline.
The most complex project will involve identification data stream video, audio, and (3), D image them to the right, in the correct format, perhaps the most important is the economic views from a OEM, design a system, anywhere in the world.
Automobile is typical of the global market. Analysts have found the globalization of consumer electronic products clear visual habit, transmission technology, multimedia formats are different from all of the world's major severe market. But only a few exceptions, economy of scale, the value of a single product provide after-sale support instead of a half dozen the driving force behind the "local" is a design method of work.
DVD paces development
When it comes to video, for example, the U.S. is clearly on a technology adoption track that begins with DVD players for rear seat passengers. The next big thing in in car entertainment in the U.S. is likely to be satellite delivery of real time audio and video—in large part due to the growth and investment in digital satellite radio systems such as Sirius and XM.
Related posts:http://espow.livejournal.com/52867.html
2010年9月14日星期二
Choose a DVD Player for Your Kids
If you have small children, you'll know, it can be very difficult and pressure, to maintain their occupation. When they are tired, they will become very noisy, began to quarrel at a place, you don't want to let it happen when you drive. Drivers need to be right 100 percent focused on the way, this reduced greatly when you have to wrangle. Answer to make children and quiet car is a kid of portable car DVD player.
What to look for in a kid portable DVD player:
*1. Choose a very light one for your children and give them a sense of duty.
*2. To ensure that it is durable, resistant to drop, the children were children often dropping a lot of things.
*3. Ensure it had only basic characteristic, need not spend money, advanced features will be used.
*4. Ensure operational button interface is large enough children to be used.
*5. Get a DVD and at least seven inches display, in order to prevent borrow.
*6. Choose a model and at least 1 headset, all is the main point of a quiet and peaceful journey but not hear the barney for 2 hours.
*7. Get a DVD player for car can connect to a TV set, so it can be used in the home.
*8. This is very important, especially if you have any spare batteries are on a long journey, they will lose a few hours. Have a ready to can save you time and trouble.
Finally, make sure you have a paper bag can hold all clues, battery charger and cigarettes. So to keep you sane and safe while driving that long journey kids portable DVD players are a must.
2010年9月13日星期一
Car DVD Player Tips
We have to agree to the film's many different experiences, compared to DVD watching them on television, or the PC DVD provides the high quality. Earlier systems are not smart enough to start or stop where it was interrupted. The latest DVD player memory’s location/scene DVD is to stop because of power failures or other reasons. There are many famous manufacturers provide excellent DVD player. People can choose a car DVD player.
All production is to improve their DVD player and regular new characteristics. Therefore, you need to check with suppliers on new characteristics and guarantee, if the model has become obsolete. The DVD player is low cost of electronic products, don't expect life service. Accordingly, suggest you buy a comfortable brand, characteristic, price and service. I suggest you also want some friends to discuss these high input to DVD players, they never asked the owner instead of honest answers.
2010年9月12日星期日
Spending Money In a Car DVD
Double Din car DVD player extension module provides another display the utility. This makes people look at two different screens. Now, you can take a sit back, one in front of the seat. In some tool, it can screen that the difference between the two children is a great view of the action. No matter how you manage your monitor, you will have more flexibility than say - the standard version. This can help keep the smallest any interference in other functions, operation car DVD player and sometimes interfere with GPS navigation DVD player.
The first car DVD players seemed to be perfect. Finally, there is a way to enjoy some other than a "I spy" or plate bingo while on the road. You can be fitted with a few of your favorite movie, let oneself or passengers entertainment and cruising highway. In consumer immediately noticed a weakness, but these portable entertainment centers. In most cases, only some of the passengers can look after the action. A small screen to a car, double Din car DVD player was established in order to solve the problem.
Reference: http://www.bukisa.com/articles/349864_how-to-buy-car-dvd-player
2010年9月11日星期六
Car DVD System Enrich Your Life in Car
Scope or Range of Antenna
Buy a Car DVD Player Just like a Factory Installed
Portable Entertainment Often Steals the Attention Focus
Scope or Range of Antenna
The scope of antenna, also called the dual antenna, with better - to receive television as automobile is moving, is recommended. Ensure the automobile electric appliances can handle the procedures required mobile entertainment system is of vital importance. You will need a professional installation qualification for this you. Remember that voice encoding - Dolby digital electronic or even electronic theater method (DTS) when the actual 2 Din Car DVD itself plays a vital role.
Buy a Car DVD Player Just like a Factory Installed
Access to one of the DVD, actually right in your car is almost impossible unless you are smart, you choose. How to buy a considerate in dash car DVD , to make it look like it from the factory installed.
Portable Entertainment Often Steals the Attention Focus
Wholesale car DVD player can also achieve tracks DVD. If your DVD or your car mp3 on your PC, with the disk to test it self. In notebook computers use DVD can travel as a great leisure projects for downsizing with 1 audience. Portable entertainment is often steals the focus of attention.
Examine your car for top level position to install a DVD player for car. You will need your own car DVD player to be able to make best-quality inputs accessible. Provide the DVD along with you when you shop.
2010年9月10日星期五
Let Car DVD Live In Your Car
Today's GPS progress of hardware and software. This forces you to benefit from your - DIN unit increase difficulties and effective 3D confluence sailing instructions guidebook. Advanced or use efficient route planning based on the road - for real data and voice "- a relaxed drive for input in your friend's house.
Via buying a DVD player for car with dual screen, it can keep multiple passengers entertained in a larger car. These devices can be mounted in multiple rows of your car, your SUV or van and may even be outfitted with individual speakers or headphone outlets to allow viewers to adjust their own volume levels. Hence there are more entertainments brought in the car, driving will be never dull and tedious. Find a portable DVD player and a large enough to all of your screens which passengers can enjoy the show. A good guide is considered a screen or more players of the seven inches.
Now in the market, some car DVD players can come with an IPOD interface, it means that you can connect it with your ipod. Also a small remote control can be also provided by the suppliers in order to control the DVD player.
The best is a professional setting your roof mounted DVD player, but you can do it yourself, even installing a rear view mirror monitor.If you have the knowledge and skills. Of course, the player is not the only type of DVD player. Are those who do not need to install and quietly in the front seat of the people behind the enjoyment. The 1 din car dvd is connected and worked with the batteries or A/C and insert your car adapter lighters. These types of two kinds of choices of are cheap, and a great man in the budget. You can easily get one.
2010年9月8日星期三
How to Select a DVD Player for Car
Double screen car DVD player
It can serve as a remote monitor the receiver signals from the infrared transmission device on the host. Section has its own independent headset jack and external speaker, but they shared a remote, because the two units are the same plate as the first choice, battery performance model of limitations, but most people have the necessary adapter for in-car charging.
Flip down Car DVD player
As an alternative, you can set a down from the roof of the DVD screen and links to a in-dash unit was built in infrared or Bluetooth transmitter. There is an integrated system of roof installation, game, DVD player and TV spectrum FM launcher. Lots of consumers enjoy these, to the rear benches watch and/or gambling.
Car DVD Player
DVD player basically is portable DVD player doesn't fold. Similar to the variation of the tablet PC vs. A notebook computer, the same function - the unique design. Door and disc is located in loading or on the side, flat car DVD player cattle stool behind a horizontal external loudspeakers are usually installed in the face of the units. Flush although only one screen and rear can become crowded, defecate see several departments do ship double wireless headset.
For more information, please see dozens of great mobile car DVD player and consumer's comments and pricing information on bets portable DVD players.
In-dash car DVD player
In dash car DVD player can have several kinds. You can buy a car dashboard car DVD player with screen or not. Large car with plenty of space and a large console carriage will be the best players, including a screen in-dash. Usually in the screen of unit when not in use, and the screen size is usually 5 to 7 inches.
These often described as a car DVD, or double din car DVD. Basically, a double din part is 4 inches, one is two inches tall. Now you can usually installed a single DIN involved in a double DIN, because they usually open installation package, including an adapter framework. The portable DVD player can buy with or without TV receiver.
Reference: http://global-electronic.blogspot.com/2010/09/car-dvd-player-is-on-way.html
2010年9月7日星期二
Different Features of Car DVD Players
Bluetooth Features of Car DVD Player
This unit's extensive function like electronic list for the world's most is popular embedded components. How about Bluetooth? Yes. 7 inch LCD screen? You got that right. Watching television programs and movies? Definitely listen to the radio. Check. Play the video and audio files SD card or USB drive? Right, because our topic and the security of electronic card is not one but two SD/MMC card slot: one for the GPS, multimedia, this is a real car audio system of GPS and not a car audio system GPS feature.
Gps Function of Car DVD
Establish a highway driving or who loves traveling, these 2 - often car audio system is DIN GPS in a great wholesale prices make it suitable for the second-hand market, variable and OEM market, or a simple individual or company.
When someone is calling you, please wait a moment, There is no need to eyes, because your path from the phone is a bluetooth matching system, you listen to your visitors through your car speakers. Take it easy, you take the historical or receiving a phone call and let missed a touch dial-up function make life easier.
If you always insisted on something better, now it is the time. Experienced in four directions and entertainment with a car Mp3 will fully motorize the rotation angle on the big screen. Up, down, left, right!
Reference: http://www.bukisa.com/articles/349864_how-to-buy-car-dvd-player
2010年9月6日星期一
Prepare a Car DVD Player For Your Kids
Image that you are the one riding in your automobile it would be daft to have a because you cannot watch while you drive. Not only is it illegal, but it is extremely dangerous.
Dual monitor sets can be bought at reduced costs for two-person backseat viewing. In case you have over one kid, this may be an absolute necessity for you & not as much of an option to keep squabbling to a maximum.
You need to buy an in-dash or middle console receiver to act as a media player. There's also players that can be tucked away under a stool.
Automobile in dash car DVD & other car DVD players are appearing more often in vehicles these days as a larger number of cheap automobile DVD players appear on the market. However
sometimes it is hard for a person to know where to start looking for a automobile DVD player advertisement what to look for. So buyers should make good evaluation for that.
Reference: http://visitkevin.wordpress.com/
2010年9月5日星期日
Car DVD Player is On the Way
On the other hand, in dash car dvd is well advanced in dash car DVD players with many new and high technology. Download your favorite music and vedio players, and share Portable DVD Player, you will want to see on the documents to anyone! When you are going to have a trip, you are driving and listening music, and then your wife and kids can enjoy the film themself.
Car DVD player is on the way for your best entertainment now! Keep moving and enjoy your driving life with your DVD player!
Reference: http://espow.livejournal.com/50578.html
2010年9月3日星期五
New Features of Parking Sensor
The camera will utilise the full colour screen on Calais, Calais V-Series and SS V-Series Sportwagon while all other Sportwagon models will feature an integrated rearview mirror screen.
The video camera is mounted in the rearview mirror and it functions as a blind spot reduction, backup camera, as well as a DVR. It records to SD card and records not only the video picture, but equally important is the time and date. And with SD cards, removal of the video clips to play on your PC is simple. And what’s icy is that the rear view mirror Automobile Camera Recorder works along with your existing rearview mirror as an overlay, so there’s no pricey and time consuming installation method to replace the stock mirror. It slips right over it.
Ultrasonic waves (or ultrasound) are sound waves with frequencies greater than can
be heard by a human (>20kHz). Ultrasonic waves propagate at the sound speed,
which depends both on temperature and humidity of air. The sound speed dependence on temperature can be approximated by in dry air, where is the air temperature in ͦC. There is also a small dependence on humidity, with increasing by up to 0.5% with increasing humidity. Similarly to sound waves being produced by the mechanical vibrations of a loudspeaker membrane, ultrasound is produced by converting electrical pulses into mechanical vibrations of a membrane. The buildup of ultrasound emitters and ultrasound receivers (both called ultrasonic transducers) is identical.
As a receiver, the transducer converts mechanical vibrations (due to the ultrasonic waves
impinging on a membrane) into electrical pulses. As an emitter, the transducer
converts electrical pulses into mechanical vibrations. The conversion from mechanical vibrations to electrical pulses and vice versa is achieved with a so-called piezoelectric material (typically a ceramic) that is attached to the membrane. When a voltage is applied across the length of a piezoelectric sample, the length of the sample change slightly. Thus, applying an alternating voltage of parking sensor at a certain frequencyto the piezoelectric sample causes the membrane to oscillate at that frequency.
Reference: http://tasha1124.blog.com/
Mini Projector is Small Enough
There is no limited place to use this projector. You can bring it with you anywhere anytime, in the house, on the roof at night, or in the class room, in the plane even. So it is as mobile as you want. And most of the devices like a DVD player, Mp3 Player, camera and a laptop, also ipods.You can find a mini projector for your kids also.
Disadvantages of Mini Projector
Small projectors are not suitable for the kids to watch it at its maximum capacity of projection. It never provides a pictures of high quality one expects from a projector. And the brightness is not enough for a display.
The other main problem is that, pico projectors can’t work in day light even with the shadows around. As it can only work at a dim environment. Those small sized projector will fit in the palm of your hand and uses high powered LED illumination to project up to 60 inch for television, movies, and video games from their respective devices .
Whether you’re making a business presentation or sharing images with your friends or relatives, Small projectors will allow you to project images and videos on almost any wall, almost anywhere. Images can be displayed on-the-fly from computers, Enjoy your life with a small projector! Easier life with a pico projector.
2010年9月2日星期四
Typhoon Kompasu Hits Korea
Powerful gusts knocked over trees, power lines and streetlights, cutting off power to tens of thousands of homes and forcing airports to cancel or delay dozens of international flights, the National Emergency Management Agency said.
More than 60 international flights were delayed or canceled, mostly to and from China, officials at Incheon and Gimpo airports said. Service on two Seoul subway lines and five railway routes was suspended, officials said.
An 80-year-old man died after being hit by a roof tile and a 37-year-old businessman was killed on his way to work by a falling tree branch, the emergency management agency said. A 75-year-old man was electrocuted while examining a transformer, and four people were injured by broken glass, it said.
Elementary and middle schools in the capital, Seoul, were ordered to delay the start of the school day by two hours, while all public and private kindergartens were closed for the day, the Seoul Metropolitan Office of Education said.
Typhoon Kompasu also has come to China, and lead to many inconvenience.
Schools are Closed
In China, the Shanghai municipal government canceled all kindergarten, primary and high school classes today because of Kompasu, according to a statement on the government’s website.
The typhoon and back-to-school season have cut Shanghai’s World Expo attendance, the Shanghai Morning Post reported today. The Expo had 200,007 visitors yesterday, the fewest since May 13, according to the newspaper.
Reference: http://www4.comcast.net/articles/news-world/20100902/AS.SKorea.Typhoon/