Posted by sunny27 on Jan 08, 2010
What is the next dye-sensitized solar cells
In the “American Chemical Society,” a new paper published in the journal vgp-bps2 , vgp-bps2a, they introduced the use of zinc stannate particles of a dye-sensitized solar cells, but this battery does not use nanowires, their efficiency is 3.8%. Now they are combining these two kinds of strategy research, namely the use of zinc oxide manufacture of tin salts and other nanowires.
They also also exploring the possibility of using nano-trees vgp-bps2b , vgp-bps2c – nano-wires shaped like tree branches like. Professor Wu said, “We ask ourselves, what structure is to absorb light and transfer the best current structure of it, that is tree-like structure! Leaves provide a large surface area to capture light, the branches will be transferred to the nutrition roots. In our dye-sensitized solar cell design, dye particles will provide coverage of the surface area, nano-trees would grow among the leaves on these branches, transmission electron. ”
Therefore, the next dye-sensitized solar cells will grow a tiny pink “tree”, but other colors are also possible. The researchers are studying to work better in the new dyes and dye compounds.
End:canon bg-e6 battery grip , canon eos 20d battery grip.
Posted by ecsem1 on Nov 24, 2009
Today, I made such a topic about that notebook computer users in the use, maintenance, and repairment could sum up some experiences to exchange for better management of their laptop batteries .
- the regular production of laptop battery manufacturers a variety of parameters clearly marked.
- buy laptop battery, the best choice nickel-metal hydride batteries or lithium-ion Inspiron 1520 Battery.
- genuine batteries commonly used PC or PVC shell material is very strong, difficult to damage, the general means can not open the laptop battery.
- neat appearance, there is no extra burr, a certain degree of roughness of the outer surface, and feel comfortable.
- notebook D5318 into the battery slot should be around freely, and closely integrated with the machine, while attention to the battery nominal voltage and voltage to correspond to your notebook.
- to ensure that purchase of the KD476, charge and discharge of its good performance.
- under normal circumstances the thinner laptop battery, ecessary to ask the dealer asked in detail about the characteristics of HP 530 battery.
If you want to extend notebook battery life, we must also carry out proper maintenance of batteries and maintenance, the following is Ikunori maintenance and maintenance of notes:
- to avoid dell inspiron 1721 battery at a temperature higher than 60 ℃ or lower than -20 ℃ environment, otherwise the use of time and life will be shortened. Laptop battery charging basic method, because laptop battery characteristics vary, so it must be in accordance with manufacturers instructions manual method of charging.
- if not a long time the machine is best to remove the laptop battery because the case does not boot, will be a gradual loss of laptop battery power
- due to a general non-rechargeable batteries, lithium batteries, such as the forced charging will cause an explosion.
- do not XPS M140 Battery, and some metal products together to prevent such metal objects touch the battery polarity, short circuit caused by the phenomenon.
- laptop battery when not in use, if temporarily, you can temporarily release some of them power, but then save it.
- due to its chemical properties of lithium-ion battery is extremely active in response to intense, so we should not arbitrarily to its demolition. If rain, moisture, dry cloth can be dry, put in dry and ventilated place on their own or with hot air drying of about 40 degrees.
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Posted by sunny27 on Nov 18, 2009
DRAM price rebound(A)
Local 4 this week, due to rising prices of computer memory chips Sony VGP-BPS8 Battery, including South Korea’s Hynix Semiconductor Sony VGP-BPS9 Battery, including major Asian chip makers showed a price rise to varying degrees.
According to DRAMeXchange figures released this week, 512MB DDR2 memory, three spot prices rose 17%, which is also a weak memory market, the price of the rare recent rebound phenomenon. Due to increased production coupled with lower than expected market vgp bps2c demand, DRAM chip prices have fallen sharply this year, the major memory chip makers are therefore affected in varying degrees.
Industry analysts pointed out that DRAM spot prices this week, three-rebound might be only a temporary phenomenon, but also strengthened their full recovery of the memory market confidence. Hyundai Securities analyst Jay Kim said that day, according to past experience, the entire memory Sony vgp bps2c market experienced a sharp decline in spot prices will be followed by recovery, if the contract price and the spot market, consistent upward trend, then the DRAM chip prices will start to rise, while the memory makers The third quarter is expected to improve.
Second only to Samsung Electronics as the world’s second largest DRAM chip maker VGP-BPS8, Hynix Semiconductor shares rose 4.67 percent Thursday, rose to ₩ 33,650; Japanese DRAM maker Elpida Memory chip shares rose 3.47%, rose to ¥ 5670; China Taiwan DRAM chip maker Powerchip Semiconductor and Nanya Technology shares were up 2.26% and 2.78% with VGP-BPS2A.
