MII: June 14 starting a new network interface mobile phone chargers should be uniform
According to the Guangzhou Daily reported Digital Camcorder Battery yesterday, Ministry of Information Industry issued a circular calling for since June 14, 2007 at the mobile phone Jinwangjiance to start implementation of a uniform interface standard. By then, all produced in China a new application into the mobile phone network license and matching chargers have to be a unified interface. It is understood that so far, including Nokia, Motorola, Sony Ericsson and other foreign brands as well as some domestic mobile phone handset makers have not yet come to participate in the standard, but because the standards are not mandatory standards, consumers buy these brands may be temporarily unable Enjoy a unified interface to bring the convenience of mobile phone charger.
In order to unify mobile phone charger Digital Camera Battery interface, Ministry of Information Industry issued in December last year, "Mobile Communications Handset Charger and Interface Technology Requirements and test methods." Yesterday, the Ministry of Information Industry issued a notice to accelerate the implementation of mobile phone charger and interface uniform technical standards. "Notice" requirement since June 14, 2007 at the mobile phone Jinwangjiance to start implementation of the new cell phone charger interface standard. By then, all produced in China a new application into the mobile phone network license and matching charger shall comply with relevant regulations. Meanwhile, in order to encourage producers to implement the standard as quickly as possible, for June 14 in accordance with the standard application into the network, mobile phones, Ministry of Information Industry will Jinwangjiance Canon Battery, network access approval, and other links to be given priority.
It is understood that there are a number of domestic mobile phone vendors have aggressively participated in the standards. But including Nokia, Motorola, Sony Ericsson and other handset makers were not well-known international brands to participate in the standard to.
Because of this non-mandatory standards, and therefore can be predicted that in China after the June 14 production of the new network within the foreign brands mobile phone charger, or "each singing its own tune," to buy foreign brands of consumer mobile phones will be temporarily unable Canon BP-208 to enjoy Unified After the charger interface brings the convenience to buy foreign brands mobile phones have to spend more money for the purchase of chargers.
The use of nano-coaxial cable technology, America developed a high-performance solar cells
U.S. National Renewable Energy Laboratory (NREL) recently announced that they used nano-coaxial technology developed to significantly improve the performance of high-performance solar cells. Experts pointed out that this is the development of high-performance solar cells made significant progress Canon BP-511, nano-coaxial cable technology will be widely used in the microelectronics field can also be used to develop nano-computers.
Traditional solar cells working principle is very simple: When light shines when the pn junction to generate electron-hole pairs generated in the pn junction near the carrier has not been complex and the arrival of space charge region, attracted by the built-in electric field, e into n areas, holes into the p zone, resulting in a surplus store n areas of electronic, p district of excess holes. They formed near the pn junction with the barrier in the opposite direction of the photo-electric field. In addition to photo-electric barrier, partially offset by the role of the electric field, but also to positively charged p zone, n negatively charged zone in the n region and p-electromotive force generated between the thin layer. However, because they had been Canon LP-E5 inspired by free electrons and holes in the same region, electron and hole behavior frequently cancel each other out, resulting in low efficiency of solar cells.
Pn junction in order to make thinner, while addressing the issue off free electrons, the researchers combined the two semiconductors form a nano-coaxial semiconductor structures. Such nano-cables can have two different ways: one of the inner core is a gallium nitride (GaN), an outer layer of gallium phosphide (GaP); another kind of the opposite. Two kinds of cables within a core diameter of about 4 nm or so.
When the photons projected onto the outer layer of nano-cable, the excitation of electronic Canon NB-1LH and semiconductor materials have taken place between the hole and the high efficiency separation of free electrons. Coaxial cable structure not only played the role of the battery, but also played the role of ordinary cable to solve the problem of electronic separation (because of nitrogen, gallium and phosphorus have different conductivity). Eventually, due to a series of complex quantum effects, and interactions took place within the core of the outer layer of the semiconductor semiconductors can accept a wider range of visible light, thus greatly improving the performance of solar electronics. In addition, the coaxial cable can be nano-microelectronic technology, especially in the future nano-computer to obtain wider application.
Lithium Battery: electric cars, "green heart" of
A few years ago, China's electric car market just got started, their impact on environmental protection and other issues has attracted wide attention. Recently, the Zhejiang Industry & Trade Group and the Professional Rebar imperial power type lithium battery manufacturers in Suzhou Star Constant co-announced that it will join forces to promote bicycle lithium into Beijing, Shanghai and other major cities, the initiative of all sectors of society work together to promote the "dilithium" power of this New environment-friendly Canon NB-2L energy development and application. Industry experts said that the electric car industry, a huge market space will soon usher in a period of rapid growth, particularly in lithium battery used in electric vehicles so that the "lithium" Train as a green light and progressive means of transport are well known, allow ordinary people the full enjoyment of both the green and convenient way to travel, but also to address the problem in China's energy and transport problems to provide a workable way of thinking.
According to reports, the original power source for electric vehicles use more lead-acid batteries, in the production and recycling process is very easy to environmental pollution. According to experts, Shanghai Electric Vehicle Directory for approval to freeze the original reason for "green" is one of the core issue. Because most lead-acid batteries used in electric cars mainly by the lead, sulfuric acid and other metal and plastic composition of the body not only cumbersome, but also its internal contains highly corrosive sulfuric acid, containing high levels of lead, inorganic salts, will be seriously polluted by indiscriminate discharge of soil and water, and generate lead-steam, air and the environment, ecological balance can easily cause Canon NB-2LH, Canon NB-3L damage.
For this reason, development of new practical and green of the motive power batteries, replace lead-acid batteries, a domestic research institutions and production enterprises endeavors. In this context, lithium-ion power battery electric cars come to the fore. Because do not contain cadmium, lead, mercury and heavy metals harmful substances like lithium batteries in the production and use of the process does not produce pollutants to protect the health of the body, battery recycling process contaminated water and soil problems are so easily solved Canon NB-4L, Canon NB-5H. Loading lithium battery powered vehicles also has many other advantages, a city an indispensable part of the transport system is very suitable for family use: First, light weight. Many consumers complain that too heavy lead-acid batteries, a battery of 20 pounds -30 pounds weight, strength weaker of the President, the elderly is difficult to carry. The lithium-ion battery is usually in the 7 pounds up and down, about 1/3-1/4 the former is about a child can also be slightly larger Eurya get up; followed by a more long-term life expectancy is 3-4 times the normal lead-acid batteries . Winter lithium batteries can be used normally in the low-temperature environment, there is no lead-acid batteries to power a significant attenuation of the winter issue. At the same time, at any time charge, no memory effect is also reflected in Canon NB-5L, Canon NB-6L superior performance of lithium batteries.