Thursday, September 23, 2010

Fuel cell catalysts

Fuel cell catalysts


The United States by the fuel cell catalyst nanoparticles atomic image


MIT engineers and has made environmentally friendly energy storage devices of the first nanoparticles single atom image.


Well-known platinum and cobalt nanoparticles mixed reaction to the fuel cell can play a catalytic role, and its reaction rate is simply four times platinum as a catalyst. However, no one knows the exact reason; This is because the nanoparticle surface atomic structure and chemical properties is poorly understood.


Now using aberration correction scanning transmission electron microscopy (aberration-corrected Scanning Transmission Electron Microscopy), can determine the atomic structure of the catalyst surface.


Q-Cells solar grade silicon for the first time on display unit to accelerate the development of solar cell manufacturers


Q-Cells AG of Germany in the International Society of solar cells and Exhibition "EU PVSEC", the first public using special silicon solar grade silicon solar cell manufacturing "Q6LEP3". Target is 2009 to 2010 for practical use, and the cell conversion efficiency of the same unit with the existing 16%.


With the use of the existing unit of raw materials compared to silicon, solar grade silicon solar cell to achieve a stable supply, and reduce costs. Therefore, as expected to ease the shortage of silicon raw materials flagship product, the practical use of concern.


This, Q-Cells, said, "use of the product, the battery can supply enough units to help companies grow faster solar cell modules," Therefore, "GROW FASTER (faster development)" the words together with the solar cells display.


To achieve the practical use of low purity solar grade silicon, can increase the cell conversion efficiency and to what extent is a major issue.


The display unit specification: Dimensions 156mm × 156mm (± 0.5mm), thick 180μm or 160μm (± 30μm). There are three wide and 1.5mm surface of the silver bus (Busbar).



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Wednesday, September 15, 2010

MIT researchers developed mauslose mouse


MIT researchers developed mauslose mouse


"Mouseless works," as one would use a physical input device. Key components are an infrared laser and a camera. The material of the prototype will amount to $ 20.


Pranav Mistry, research assistant and doctoral candidate at MIT Media Lab, has developed a "mauslose computer mouse." "Mouseless" can do everything that a normal mouse can also - just without a mouse.


The user simply pushes the hollow of his hand across the table. Using an infrared laser (with cover) and a camera locates and transfers "Mouseless" the movements on the screen. Both components are integrated into the computer. Try, for example, the index finger twice recognizes the system’s gesture as a double click.


mouseless-v6
The evolution of the computer mouse (Image: Pranav Mistry / MIT)


The emitted from the laser beam produces an infrared light field on the table. Curves, the user’s hand when he would hold a mouse registered, the infrared camera as they light spot. Changed the "stain" his position, interpreted this as the computer mouse movements.


Mistry and his team are still working hard to improve the algorithms of the sensors. As a result, one could build a library of gestures. Typical multi-touch gestures would be possible as well as movements that are specially designed for "Mouseless. With $ 20 material the researchers have implemented a fully functional prototype system.




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Wednesday, September 8, 2010

Siemens billion penalty must be paid

Siemens billion penalty must be paid


The Siemens bribery scandal comes at a high price: pay in the United States, the electronics company $ 800,000,000 punishment in Germany again almost 400 million euros. The ex-management could even threaten the U.S. proceedings.



Siemens agreed with the U.S. Department of Justice and the U.S. Securities and Exchange Commission on the penalty in the amount of $ 800,000,000 (600 million euros). The sum is made up of a penalty 450 million U.S. dollars to the Justice Ministry and a skimming of 350 million dollars to the SEC. The Munich public prosecutor also imposed a fine on another 395 million euros.


So that the proceedings against the company were for alleged bribery of public officials in both countries simultaneously terminated, said Siemens Supervisory Board Chairman Gerhard Cromme. "Today we close one of the most unpleasant chapters in more than 160-year history of Siemens from essentially."


As the U.S. Justice Department said explicitly, but so are individual cases against former top managers of the company not excluded. The Assistant Attorney General Matthew Friedrich said in Washington: "The investigations are continuing." He also directed massive accusations against the company. The procedure revealed that "corruption was nothing less than normal procedure" for Siemens.


Siemens penalty must be paid because the company wanted to gain competitive advantage through corruption and has violated the rules of corporate governance. A total of 1.4 billion to bribe his shed. That is due in the U.S. especially high penalties.


Siemens had previously been a billion euros for fines to U.S. and German authorities postponed. The U.S. authorities have been relatively merciful, because the offenses fall under the term of the former Siemens management board and the new Board of Directors shows remorse and promises to resolute action against corruption.


In addition to the fine must be Siemens undertake to monitor the future better internally that no bribes are paid. This task is to take ex-Finance Minister Theo Waigel. As an independent "compliance monitor" Waigel will continue to insist on such measures to prevent corruption and to comply with laws and regulations are implemented at Siemens, the company announced today. It would Waigel, who was signed for four years, regularly report to the U.S. Department of Justice and the powerful U.S. Securities and Exchange Commission.


He was the first non-American who acts as Compliance Monitor, said Siemens Supervisory Board Chairman Gerhard Cromme. "Here too, the empathy and the prudence of the authorities, and certainly this can also be understood as confirmation of the confidence that the company has built up over the past two years with his course of enlightenment and change."


The U.S. investigators have yet again made against the former Siemens boss Heinrich von Pierer collected. Pierer and other ex-Zentralvorstande were despite evidence of corruption cases in the group did not intervene and things did not go to the bottom, it is clear from the investigation documents.


In a written statement by his lawyer Pierer did say he had not been consulted by U.S. authorities. These would be "based only on one side by the Siemens AG provided information."



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Siemens billion penalty must be paid

Lions roar in the jungle road

Lions roar in the jungle road


Classic two-seater sedan or family-safe: the times are also no alternative to the road athletes long gone - it need not always be Porsche. Expensive but it is always.



With the beefy C 63 AMG, Mercedes on a daily use machine that offers the same interior space as a more tranquil normal version of the C-Class. And the luggage no concessions are necessary: 475 liters of luggage compartment - as created by the Porsche just a little more than a quarter.


And even when the price is almost familienkompatibel AMG: 67 830 for the base version, although a bit much. But towards the close to 100,000 for the 911 Porsche Carrera 4 with a double clutch, sport suspension and a few other extras are even on the other hand, a word.


Highly variable and the engine concept. Brawny power, both offer: Porsche creates 283 kW/385 hp, AMG-Mercedes even 336 kW/457 hp. And at Super Plus make it not both. But that's all the similarities, even as far as possible.


The V8 engine in the Mercedes is an optical gem: Who pops up the bonnet, believes in the engine compartment of a truck to look. Large and powerful, the engine takes up the space that it deserves. The aluminum-V and the gleaming black of the panels indicate at once: Here lies nothing but power. Clearly insignificant in the rear of the Porsche Boxer. It works with its six cylinders rather pure squeezed through the narrow hatch - for the eyes, it offers little.


Therefore the more so for the ears: At idle there is a rich rumble - but that will change immediately to a more rapid drum fire as soon as it goes. min until 8000 rpm. the scale of the rev range - and the Porsche roars in staccato almost to the last mark.


But no matter how wonderful the sound of the Porsche boxer is: The AMG V8 engine, it can even better. Dark aggressive and he roars off, as you can with just eight pots. And when manually downshift the new auto-declutch produced simply great cinema for the ears.


Performance-wise, they actually put on the road, take the two engines are not very much - despite the 72 hp and 180 Nm torque is saturated with AMG. The need at 1730 pounds empty weight but also cope with almost 300 pounds more to come as the Porsche weighs. The Mercedes storms officially within 4.5 seconds from 0 to 100 km / h, the Porsche can be achieved with 0.2 seconds longer.


With Sport Chrono Package, Double clutch and launch control the Zuffenhausen is real even faster than the Mercedes from Affalterbach - because the electronics better while the race start it all still a bit makes a man who gives the Mercedes gas and the only of the - excellent - and 7-speed automatic one not quite as sophisticated as in the sports program is supported Porsche. In addition, the Mercedes hit with its 250 km / h Limiter tilts - likely without the emergency brake he come to the 302 km / h top of the Porsche, at least up close.


No later than at the gas station but then shows that the Porsche is much more modern vehicle. The AMG turns out to be a drunkard - eight cylinder 6.2 liter engine will be supplied. The officially estimated 13.4 liters per 100 km are not even close to achieving real - who leaves so that we really like it and from time to time will also enjoy the blipping, which can be happy if he stays under 18 liters. You can watch the needle of the fuel gauge while driving literally, as it tends to big, mean zero. Not without reason, Audi and BMW to replace their V8 in the sport versions with highly bred six-cylinder.


The 10.6 liters, the Porsche Carrera S as indicating, for the average fuel consumption, by contrast, almost realistic. Even at very dashing with significant highway driving shares around 300 km / h consumption of the entire test was on average only a little over 13 liters. To normal, but still driving spabbetonter 12 liters should be possible.


The reason lies not only in the brand-new boxer engine but also in the much more modern overall concept, the Porsche offers. The transmission of both cars are the best of what is currently available on the market - only use it a lot more to save fuel at Porsche. 80 on the highway at a speed of the two-seater rolls economically in the 7th Corridor. Where's the fun? A kick on the accelerator - and it will shut down instantly and takes off.


The Porsche is simply the much more agile of the two, the sporty flat. Those who want a real high performance sports car - and Made in Zuffenhausen can afford - for which there is no real alternative. Especially not after the current revision of the 911 series.


Who every now and then needs more than two seats, yet very athletic move will be, for the AMG - also still significantly cheaper to buy - the best choice. And for all outdated thirst of the V8 for 30,000 price difference you can fill up a long time.



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Bad year for investors

Bad year for investors


Most investors will not like to look back to 2008. After the strong stock market in 2007, the financial crisis led to dramatic drops in the stock markets. But the German market broke nearly in half.



"That was a disaster," says Lothar Gries of the Protection of Shareholders (SdK). "In almost all investors, it should" give a very low, minus the deposit, he added. The German Bank speaks of an "annus horribilis". The benchmark index Dax broke the year as a 40 per cent and was quoted yesterday at 4652 points, after 2007 still increased by about 20 percent. The M-Dax fell by as much as 46 percent to 5264 points and is currently the TecDax fell by 53 percent to 459 points.


The largest losses were registered again because of the financial crisis in the Dax, the Bank values. Hypo Real Estate fell down, by 92 percent to 2.88 euros. German Postbank broke a 77 percent to 12,94 euros, Commerzbank fell by 76 percent to 6.25 euros and German bank became cheaper by 69 percent 25.99 euros. Already in 2007 they had heard because of the emerging financial crisis on the most losers.


The title of "Worst Dax-value" shares the Hypo Real Estate but with Infineon, which also lost 92 percent. Already last year they had fallen by 18 percent, the worst paper in the leading index. From the former high of around 95, the share of the former Siemens subsidiary, has now mutated at 0.65 euros at the Penny-Stock.


The clearest winner was Volkswagen, which became more expensive by 98 percent and the year was yesterday quoted at around 308.00. In the wake of the announced takeover by Porsche, the share of Europe's largest car company on speculation by financial investors through so-called short sales had increased for short periods even at over 1000. In addition, could only withdraw Dax rookie K + S the downward trend. The papers of the Kassel fertilizer producers recorded an increase of two percent.


In the second row got especially ProSiebenSat.1 under the wheels. The share of the Munich television group lost 92 percent to 1.47 euros. Is seen critical in particular that can be the majority owner Permira and KKR by the Group in spite of high debt to pay strong dividends. Also, the retail group Arcandor (Thomas Cook, Karstadt, Quelle) recorded with 85 percent to 2.70 a drastic fall in prices. The company writes still deep red numbers.


The only M-Dax-winners were the North German Affinerie with a gain of 9.5 percent to 29.17 euros. Europe's largest copper smelter, which exceeded several times the profit expectations of experts, has benefited from the acquisition of Belgian competitor Cumerio as well as from the entry of the steel group Salzgitter.


In a particularly strong TecDax broke Solar shares. Above all, Conergy fell by 96 percent to 0.89 euros. The financially troubled Hamburger solar provider has several profit warnings still not recovered. Could only convince Epcos. The shares of the Munich manufacturer of electronic components goods rose by 58 percent to 19.80 euros. They benefited from the takeover by the Japanese electronics company TDK, which now holds 94 percent of Epcos.



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