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2011年9月20日星期二

Develop a flexible polymer solar cells

Solar power panels with the traditional technology, this printable has the advantages of substantial. Their weight easy to transport, they may be the introduction of household products market, as well as the same notes can be bent. Part because of its transparent, they can be installed in almost any place, including housing and vehicles at the top of windows or glass panels. And with floating properties, making it be able to cover a swimming pool or dam to reduce evaporation, but also to generate energy.
Korea took the lead in the beginning of the production of thin film solar cells are GETWATT. The method used is an annual production capacity of 20mW in the production line in 2008 began producing thin film silicon-based solar cells,production lines using Zhou Xing works (Jusung Engineering), such as the Aspire 3600 company’s production facilities. EXPO Solar at GETWATT up, displaying a floor size of 1.1m × 1.3m, output power of 94W modules. Stable after the conversion efficiency of about 7%.
Direct methanol fuel cells are currently the most widely adaptable proton exchange membrane fuel cell A, since its inception to its high energy conversion efficiency,less pollution, easy miniaturization and the advantages of miniaturization has become the field of energy and transportation at home and abroad competing for one of the focuses of research and development. Preparation of proton exchange membrane fuel cells are the key material, but also the impact of fuel cell performance and cost one of the main factors. However, methanol through the proton exchange membrane at the cathode caused by the mixed potential, perfluorinated proton exchange membrane, such as the bottleneck problem of excessively high costs,seriously restricting the direct methanol fuel cell the practical use and commercialization. Therefore, as soon as possible to develop a new type of proton exchange membrane fuel cells in promoting the development of great significance.
In addition, the two also from organic hydride hydrogen extracted energy loss at the time of the larger problem is also carried out a mission. According to two estimates, if the energy used to produce pure hydrogen for the purpose of heating,the larger the loss. So the two companies envisages the following programs: with a small diesel engine generator to produce TRAVELMATE C300 electricity for the car, at the same time the use of waste heat generated hydrogen.
Thus, the energy conversion efficiency has been improved, including the fuel manufacturing process, including integrated to achieve 27.8% efficiency was obtained than when using high-pressure hydrogen (26.5%) higher results. Although the program is still at the drawing board, there is also a system will become complex and difficult, but the program shows the implementation than the use of high-pressure hydrogen at a higher energy conversion efficiency of the HSTNN-DB63 possibility of the results can be said to be expensive.

2011年9月17日星期六

The battery is a very important part of your laptop. If it stops working, so you can say you have a portable system, you can not go to places and the laptop without it. And even if the battery lasts about 1-2 years depending on use and to ensure that the time will come when your laptop battery should be replaced Dell laptop. This can be easily deceived, and you do not move the hp compaq 6700 battery  chair because they are delivered to the door.
If you want to subscribe to the Dell battery online, here are the steps: Take a Dell laptop with Dell service tag, usually sees the publication of a white label with a bar code. Enter this code and visit the Dell in the battery industry. Enter the Service Tag for your laptop battery is a page to select. If you do not have this code, you can easily create a list of specifications or on the number and type of model. Select the model, in some cases only one option, and in some cases and May are a few improvements.
For example, select the 9-cell battery, 6 cells, and thus can take advantage of longer battery life. But it all depends on the laptop. Finally, the “Add to cart” and “View Cart” and fill the hp pavilion dv3500 battery  order transaction.On a few other sites that you have a cheaper replacement Dell laptop battery, but do not forget the warranty and return policies of these two very important aspects to consider to determine. It is also advisable to use only original batteries to buy, used to unpleasant surprises in the long term to avoid. If the batteries properly, it will be useful to the same long life to have and be able to manage your tasks wherever you go.
Now, if you have a battery, to see how to install on a Dell laptop. The task is very simple to do and takes about 10 minutes. All you need is a Phillips screwdriver and battery. First, turn off your computer and remove any peripherals you have connected with him, even if the power acer aspire 5820t battery cord. Unplug your computer and find the battery. It is definitely on the back of the laptop, but it is also a symbol, so you can not say exactly where. Remove the and remove the cover completely, then.
Remove the old battery and store carefully moved into a new battery.Ensure that the fingers touch the battery terminals. Cover by changing the camera, includes power cord and a new battery for about two hours. It allows you to benefit from longer and improve things from the beginning. Finally, laptop batteries, cheap and if you can, you can replace them if not bothered if this situation before.