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četvrtak, 30.09.2010.

New silicon solar cells

New silicon solar cells

Recently, the University of Illinois at Urbana - Champaign (University of Illinois at Urbana-Champaign), John Rogers (John Rogers) led scientists have discovered a new high-efficiency silicon solar cell production method. This approach produced highly flexible silicon solar cells and scalability, you can roll a pencil, but also may even be as transparent windows of the building and automotive glass coloring agent.

Published in the online journal "Nature - Materials" (Nature Materials) said in a report on, you can use a new approach to traditional silicon processing, about fine crackers, cut into thin fragile silicon micro- wafer, then carefully transfer them to another extension of a flexible material surface.

Rogers, a leader in the new study, said: "We can be confused super-thin silicon wafers, can be attached to any of the plastic curl. Wafers can also be made into film or film-like, mixed with the glass in the building. This building material into the space utilization of solar energy development platform. "

As global oil prices, coupled with fears of global warming, greatly increased the demand for solar cells.

Many companies in the world, the Japanese consumer electronics manufacturers such as Sharp Corporation (Sharp Corp) and the German solar giant Q Battery Company (Q-Cells) are produced thin film solar cells, however, these thin film solar cells convert solar energy into electricity in the generally less than on the efficiency of traditional solar cells.

Rogers said that their technology is used in conventional silicon, they are "durable, high efficiency, but the current situation is too rigid and therefore seems very fragile." Rogers they adopted a method of dealing with these silicon etching. Silicon surface in a large scrape small pieces, these pieces of silicon wafers thinner than thin 10 times to 100 times, and because the small size and easier to use.

After the silicon debris scraped off with the equivalent of a "rubber stamp" of the device picks up the pieces, and then they are "printed" to the surface of other substances.

Rogers said: "These silicon debris scraped off like ink. Scraped off after the large thin pieces of silicon wafer surface to become a 'stamp pad'. Only with the 'seal' will 'stamp pad' in the silicon debris 'Indian' to other surfaces can be. "

He said that as long as the final step will be to use electronic equipment in the power of solar cells derived on it.

Improve the flexibility of silicon material makes the silicon solar cell is more lightweight, easy to carry. Rogers for the bright future of silicon solar cells will be "rolled up like a carpet can be stuffed into the truck."

He said the newly established North Carolina, Durham County, Semprius company is negotiating up the technology.

Rogers said: "We just use a different way of things we have known."

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četvrtak, 23.09.2010.

Nokia said the lithium battery is not the best fuel alternative

Nokia said the lithium battery is not the best fuel alternative

A director of Nokia, said in an interview, the mobile phone industry should pay more attention to energy issues mobile phone to support the longer cell phone video and music.

Since the use of mobile phones to watch video and listen to music and technology since the advent of greatly increased energy consumption of mobile phones. Nokia said that software developers need to design programs that consume less power; the same time, Nokia ready to develop alternatives to lithium-ion batteries.

Nokia Bob Iannucci, chief technology officer, said: "the need to improve mobile phone performance." He also said that has long been high hopes for the fuel cells may not apply to mobile phones.

"Fuel cells there is a clear issue," he said. Fuel cells using methanol and water to generate electricity.

"We built based on nanotechnology and the like are more interested in super-capacitor." Super capacitor in the energy stored in the electric field, unlike the current lithium batteries as the use of chemical methods.

Iannucci also said that if you want to fuel cells widely used in mobile phones, we must also establish a global distribution network of raw materials, methanol, and the small fuel cell energy reserve capacity must be greatly improved.

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petak, 17.09.2010.

About SFC fuel cell company

About SFC fuel cell company

SFC was established in 2000, research and development of direct methanol fuel cell products. The company's products not only used in mobile electronic products, such as; laptop computers, cameras, etc.; also used in electric golf cars, electric bicycles and other recreational tool.

SFC is the first to commercialize fuel cell company, which launched the face of mobile use in direct methanol fuel cell.

SFC fuel cell vehicles in Europe recreational vehicles Car Power Standard

Methanol fuel cell system supplier SFC Fuel Cell Corporation (SFCSmartFuelCellAG) announced there will be 39 domestic manufacturers of recreational vehicles EFOY fuel cell applications, and will be listed in 2009. This indicates that the EFOY fuel cell car has become a household recreational vehicle power supply standard.

EFOY fuel cell technology has been improved and now EFOY fuel cell to further reduce fuel consumption. Application of a capacity of 5 liters M5EFOY fuel box, power up to 5.5 kwh; application M10EFOY capacity of 10 liters of fuel box, power up to 11.1 kwh.

Russian nickel exports from January to July rose 0.8% to 139,600 tons

MOSCOW, September 8, according to sources, the Russian Federal Customs Service Office data released Monday showed January-July this year, Russia exported 139,600 tons of nickel, compared with growth of 0.8% over the same period in 2007.

7 months before the total value of nickel exports 3.446 billion U.S. dollars, down from last year's 5.52 billion U.S. dollars.

Countries outside the CIS totaled 130,200 tons of nickel exports, worth 3.431 billion U.S. dollars, compared to 139,200 tons last year, valued at 5.501 billion U.S. dollars.

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srijeda, 15.09.2010.

Samsung Q530 15-inch notebook with Nvidia’s Hybrid Graphics Optimus

Samsung Q530 15-inch notebook with Nvidia’s Hybrid Graphics Optimus

To save power, the GPU will be switched on only when their performance is actually needed. Otherwise, the integrated graphics on the CPU unit provides for the presentation. The Q530 is available now for 899 €.

Samsung has introduced the Q530, a 15-inch notebook with Intel Core processor and i3 Hybrid Graphics on Nvidia-based Optimus. It is available now for 899 €.

The built-Core i3-350M runs at 2.26 GHz. On board are also 802.11b/g/n 4 GB RAM (DDR3 1066 MHz), a 500-gigabyte hard disk with 5400 revolutions per minute, DVD burner and wireless after. The Ethernet interface supports only 100 Mbit / s, most laptops have Gigabit Ethernet. The reflective 15.6-inch screen dissolves to 1366 by 768 pixels.

To save energy, the Geforce 310M enabled automatically only when their performance is really needed – such as playing or converting movies. Otherwise it is at the core in the i3 integrated graphics unit, the image computation.

The 6-cell battery to allow for periods of up to five hours. As operating system Windows 7 Home Premium installed.

The Q530 weighs 2.36 pounds and measures 38.1 times 25.5 times 2.7 to 3.26 inches. Samsung offers 24 months on-site pick up service.


The Samsung Q530 is a hybrid graphics solution on Nvidia-based Optimus on board (Image: Samsung).

ponedjeljak, 06.09.2010.

Door number 19 provides for portable listening

Door number 19 provides for portable listening

Five more days until Christmas and you still need a little extra to make your gift package is complete? With today's Tip of the Advent story-news.de friends are happy - wherever you go.

There are some people who can no longer fall asleep without audio book. Many probably handled with the CD-radio on the bedside table and gropes in the dark for the buttons or annoyed about drohende voices from the great stereo.

It is also easier - and for little money. If the person receiving this gift does not accept a reasonably current phone cards with more than 2 gigabytes of memory or SD cards with the addition of HC each device. This manual should be consulted or the manufacturer are in demand. Also product reviews on the Internet Article condition often results information., It is probably also a place for an integrated memory card. Which are always cheaper - depending on the card there are 2 gigabytes starting at € 4 on the Grabbeltisch of the electronics market.

Then fit a number of audio books - such as a file of vorleser.net or as a copy of the CD. With the built-in speaker near the pillow, or (for Strahlungsangstliche) on the bedside table is provided by the phone for the bedtime story. With the headphones on the phone to stay with the audio books through the world and of course also fit a lot of music, photos and videos on such a card.

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Door number 19 provides for portable listening

The Island of the Blessed

The Island of the Blessed

Britain has so far been anything but a mecca for bargain hunters. But since the British pound weakens, look for some online purchasers from the virtual market on the island. Biggest problem: Hardly any of the vendors shipped to Germany.

€ 1.0690 for a British pound - the price was so cheap before. By comparison, now costs 100 pounds just a little more than 106 €, you had eight years ago, still paying the equivalent of 168 € for it. What the British had almost crashes into a crisis of confidence is for a German buyer of luck.

On the face of great bargains beckon on the Internet, in part, the prices are really fantastic. Apple's popular iPod Nano MP3 player costs in the 8-gigabyte memory version on the UK Amazon site converted only 109 €. This is unthinkable for German bargain hunters, even the best currently available online is 128 € including shipping yet clear about it. The only problem: Amazon sells the MP3 player to Germany.

And so unfortunately it is with most bids: most electronics, but also watches, jewelry or shoes supplies from Amazon UK only within the UK. "There the case of electronic products are usually two problems," says Damien Peachey, spokesman for the British mail order company. "Most of us allow the contracts with the manufacturers only sell the equipment in the UK. In addition, there are often problems with different national regulations on recycling. "

At least a great offer can be ordered from Germany: The gaming console Playstation 3 from Sony costs, including three games, HDMI cable and sold the equivalent of 335 € including shipping. By comparison, Amazon Germany demanded € 399.90 for the PlayStation 3 with a game - but only with one game and no HDMI cable. As is also the purchase of a Warmgeratekabels no weight to power the Playstation with electricity. Or you can use a travel adapter.

So near and yet so far: from the wide Amazon offer from England, therefore, only a small part to have in this country. Besides computer games, this is about software, DVDs, CDs and books. And that Amazon is already relatively open - hardly a British online retailers seem to transactions with European customers want to make. And so Comparisons with PriceRunner care or other search engines for more frustration than joy.

At customs is not: Since the UK is a member of the EU, there are no customs duties. The VAT will not be set off, we just paid his taxes in England. But why did the British traders find it so hard? "I suspect that the companies simply have not yet responded. In any case, the prices for mainland Europeans were too high for many years, the market has indeed emerged only with the rapid decline of the pound, "speculates the spokeswoman for the German-British Chamber of Commerce, Jana Lindner. So the British have just slept through the market?

Precise wanted to respond to this inquiry, none of the big companies. The Dixons Store Group, one of the largest technology distributors in Europe, intends to concentrate its UK brands rather on its core business in the UK. So be tailored in terms dixons.co.uk distribution network, customer service and product range to market Britain.

European customers referred to the electronics giant to its international online stores. This includes Pixmania, an online brand that has the branch in various countries, including Germany. can acquire the problem: while British buyers in Dixons or Currys Pixmania-daughters, great art bargains to be German Pixmania customers be satisfied with much higher prices.

Example iPod Nano with 8 gigabytes of storage space in yellow: British bargain hunters pay the equivalent of 102 € at Pixmania, Dixons and Currys still 107 114.20 €. In the German Pixmania shop the same model but is available only for 130 €.

The big corporations give so the favorable exchange rate does not continue to users. The bears, however, especially for smaller shops the opportunity to work with German clients to advertise low prices. And who knows, maybe fall on one or the other so at some point, as its prices have become attractive also for the mainland.

Until then, must be limited to German bargain hunters, the German portals. But here are already raising substantial savings potential. What to consider when shopping online and how to get the best price, reveals the news.de shopping guide.

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The Island of the Blessed

2009 will be significantly more expensive lawn

2009 will be significantly more expensive lawn

In the new year is much different for German drivers: Higher fines, the end for the driving license tourism and more biobased content in fuel. But that's not all - some changes in the Highway Code could come next year also.

The main change in the next year, according to the ADAC, the new Bubgeldkatalog, the 1 February will come into force. In particular, lawn, shoving, and alcohol and drug driving will be much more expensive.

If you are caught with alcohol in the future will pay 500 on first offense, the second time will be 1000 1500 and the third time due. The punishment was doubled mdamit. Speeding costs in urban areas from 2009 80-760 (previously 50-425), for speed violations outside of the city limits then the scale is 70-600. So far, the margin was 40-375. And tailgaters will have to dig deeper into their bag: Instead of the 40 and 250 euros in the next 75-400 years due.

When the changes proposed in the Road Traffic Regulations (Highway Code) to be effective is still open. The topics include: additional parking facilities for disabled people, overtaking truck in bad weather, reducing traffic and new rules for inline skaters and SegwayfahrerDer Segway is a high-tech scooter on two wheels. The driver stands on a step up from and is based on two handles. There, you can arrange the speed. Especially handy if you need to travel long distances every day, for example in large warehouses.

Even earlier, on 19 January, comes with the new license law, the final out for the driving license tourism: a foreign driving license obtained will apply not driven after the German driver's license was revoked.

In the diesel the biobased content is increased from five to seven percent by volume. Experts believe that this fuel-called B7 has no negative effects on the motor.

By 31 March 2009 must be large trucks from model year 2000 retrofitted with improved wide-angle mirror.

Newly designed passenger cars and light trucks in September 2009 will only be an approval if they meet minimum emissions standards 5a. This does not include that is not the maximum emission of carbon monoxide exceed 1000 milligrams per kilometer. At the same time, the limit for nitrogen oxides from 80 drops to 60 milligrams per kilometer. The next year also implemented the EU directive ECE R117 requires that tires are much quieter.

For vehicles with on-board diagnostic systems, from Year 2006, the emissions test will be merged with the main investigation. Year From April 2006, in the main study reviewed the additional electronics.

Who will be flashed abroad can be prosecuted, should not, unless he pays the fine. Exception is Austria, for with the neighboring country has a separate agreement. The problem is, according to ADAC rights expert Maximilian Maurer, that there are still substantial difficulties in the implementation of relevant EU decision. Now the new law will be postponed once more, which would forward traffic offenders abroad.

Caution was called for, according to Maurer yet: If you re-enter the country, there could be problems. There are even cases known where the passengers onward was prohibited until the almost-forgotten traffic fines was settled.

That occurs on 11 January 2009 the so-called Rome II Regulation in force. It spells out the law in the handling of traffic accidents is abroad. Here one has agreed on a compromise, which provides that should come in essentially the law of the State applies in which the damage occurred. Motorists must therefore inform in any case in advance of the relevant case law of the destination country.

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2009 will be significantly more expensive lawn

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