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19 Apr 2010

This article via: Samsung updates its color laser MFPs for workgroups

Samsung updates its color laser MFPs for workgroups

The models 6220FX CLX-6520FX and CLX-can print, copy, scan and fax. They create a maximum of 20 per minute respectively, 24 black & white and color pages. Prices range from 700 to 1058 euros.

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Samsung has expanded its portfolio with two network-printer color laser multifunction device for small to medium workgroups. The models 6220FX CLX-6250FX and CLX-can print, copy, scan and fax. Removing the previous CLX-6200ND, CLX-6210FX and CLX-6240FX from.

Samsung CLX-6250FX (Photo: Samsung)

The CLX-6220FX prints and copies according to the manufacturer for up to 20 pages per minute in color and black and white. The CLX-6250FX provides 24 pages per minute. The effective print resolution is 9600 by 600 dpi. When scanning is achieved 4800 times 4800 dpi.

Unlike the previous generation, the new MFPs need a longer warm up more. The first page will print and excludes after 17 (CLX-6250FX), respectively 24 seconds. The memory capacity has increased from 128 to 256 MB. The CLX-6250FX is compared to the previous CLX-6240FX also equipped with a powerful processor (700 MHz instead of 533) and can be an option for a 160-gigabyte hard drive and 512 MB of extended memory.

The standard paper tray holds up to 250 sheet multipurpose tray can be fitted with up to 100 sheets. A second additional paper tray increases the volume by a further 500 sheets. In addition, both devices have a duplex unit with an automatic document feeder for up to 50 pages on board.

Samsung offers organized according to the monthly print volume, two different toner quantities: the average Farbtonerreichweite is in the standard color cartridges 2000 and 2500 black and white pages. The high-performance cartridges achieve color and 5000 black and 4000 pages.

Other features of the multi-function devices include a variety of scan-to functions, such as scan to e-mail, USB or FTP. With built-in hard drive are printing functionality, such as "confidential print," "deferred printing", "test pressure" or "Stored Print" is possible. It is operated by a four line LCD display and a compass navigation. The maintenance can be with Samsung's management tool "SyncThru Web Admin Service 5.0 perform" centrally over the network, in which the equipment via Fast Ethernet port to be involved.

The multifunction devices are now commercially available. The CLX-6220FX cost 700 Euros, the CLX-6250FX 1058 Euro.

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19 Apr 2010

This article via: iSuppli expects shortages of NAND flash memory

iSuppli expects shortages of NAND flash memory

Reason is the increasing popularity of the iPhone and other mobile devices such as e-book reader and Tablets. The number of mobile phones with NAND Flash in 2010 increase by 13.8 percent. ISuppli estimates the industry's sales to 18.1 billion dollars.

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iSuppli expects this year a growing demand for NAND flash memory, which should lead to supply shortages and higher prices. The reason for these developments to the market researchers say is the growing popularity of the iPhone and other mobile devices such as e-book reader or Tablets.

The number of mobile phones with NAND flash is expected to increase by 13.8 percent, according to iSuppli 2010 to 732 millions. 2008, the growth rate was 1.6 percent.

NAND flash is used as a non-volatile memory in cell phones, MP3 players, USB flash drives, memory cards and Solid State Drives (SSD). One of the largest customer is Apple. It is estimated that the company buys 20 to 30 percent of the world's available capacity, which it has secured long-term supply agreements with Toshiba and other manufacturers.

"The success of the iPhone has triggered the development of a whole series of competing smartphones," said Michael Yang, senior analyst for memory at iSuppli. This included Motorola's Droid, Iris HTC, Palm and Google's Pre Nexus One. Although some models relied on alternative storage solutions such as Micro-SD cards tried, but all to achieve the storage capacity of the iPhone. "The good promises to the demand for NAND."

The industry sales for 2010 iSuppli estimates that 18.1 billion U.S. dollars (13.4 billion euros). This represents an increase of 34 percent compared to 2009. Last year, the increase was 14.8 percent.

In addition to smartphones also carry e-book reader and Tablet PCs with the shortage. The latter comes from iSuppli, the average storage capacity from 32 to 64 GB. "It remains to be seen whether sales will meet the optimistic expectations of manufacturers. The introduction of the Apple iPad could possibly inspire the market," said Yang.

The results obtained with NAND flash revenues climb, according to iSuppli 2013 to almost 30 billion dollars per year (Image: iSuppli).

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12 Mar 2010

This article via: HOW TO OPERATE THE PEMFC


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To ‘charge’ the PEMFC and produce your fuel gases, connect a DC power source (it doesn’t have to be very clean, so long as there are no big voltage spikes) in the normal positive-to-positive and negative-to-negative arrangement. You should have some reccomended charging specs from your supplier, but in case you don’t a common PEMFC requires 1.7V to 2.0V, at 700mA for maximum charging rate. To compensate for various internal resistances and innefficiencies, it’s common to charge the FC with closer to 3V to ensure you get a good current flowing into the cell. The easiest source to charge your FC is a nice new pair of 1.5V AA alkaline cells.

Virtually the instant you connect power, you should see bubbles of gas forming on the inside chambers of the FC. The chambers will fill up, pushing the water out of the cell and into the storage tanks, and then eventually filling the tanks with accumulated Hydrogen and Oxygen.

Once you’ve got some fuel saved up, you can use your PEMFC to power a few devices. The output for a small typical single cell is nominally 0.6V @ 500mA, but often you’ll see closer to 1V @ 800mA when the cell is freshly charged. You can connect multiple FCs in parallel or series to increase the current or voltage output respectively. Some PEMFCs, like the one used in Mr. Lobster, are actually two FCs back to back, with a shared Hydrogen or Oxygen chamber.

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Like most rechargeable power storage systems, the power output from the FC will be fairly consistent at first, but gradually weakening as the fuel supply runs out. Conveniently you can visually see how much ‘juice’ an FC has left just by looking at the tanks and checking how full they are =D

One last note – you’ll probably find that most circuits need a fair bit more than ~1V to work, and connecting multiple FCs in series can be expensive, bulky, and annoying. Since the current output of even a small FC is typically quite high, you can use a voltage booster circuit to ‘trade in’ some of that extra current for more voltage. Take a look at this example by OddBot to get started in the right direction.

Was first used in BYD F6 dual mode hybrid vehicle

At a press conference, BYD unveiled the world’s first iron battery motor and gasoline engine-powered dual-mode hybrid vehicles F6DM, at its core power battery is ET-POWER.

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According to reports, F6DM use of hybrid electric vehicle system and the system is a way to control the two kinds of hybrid power generators and electric motors combine advanced technology, not only greatly reduces fuel consumption and emissions, but also improved the performance of power and manipulation to achieve a can charge, but also fuel a variety of ways to add energy to achieve a true sense of the word hybrid hybrid systems.

BYD president, Wang Chuanfu, said, DM is a “dual-mode” (DualMode) abbreviation. If the pure electric referred to as EV, hybrid referred to as HEV, the BYD DM electric car EV + HEV, in short, rechargeable hybrid electric vehicles. This system will replace the gasoline-electric mixing system, to become the world’s most mainstream new energy automotive systems.

It is reported that BYD dual-mode electric vehicle has been declared over 700 domestic and foreign patents. After a variety of state of the vehicle under the vehicle testing, road conditions in the city can be realized under the basic state of pure electric exercise of the BYD Electric Vehicle Charging Station 10-minute quick charge up to 50% of the electricity at home using ordinary socket slow fast charging, full power has only 9 hours. According to introduction, the entire dual-mode electric vehicle cost of the system is 5 million after the increase in production costs can be greatly reduced, the car is expected to be available second half of 2008 volume production.

Invention iron battery Adds expansion “of nuclear power”

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It is understood that as the world’s largest battery market giants, BYD factory from 10 years ago now, the rapid expansion of the speed doubling every year, from 2.5 million capital to expand into the market value of 30 billion yuan, from a single battery production to the ranks of important diversification of the world’s mobile phone industry, the integration of mobile phone parts supplier, from the repairer, selling cars of the “outsider” to the production of single models F3 With over 10 million vehicles sold “miracle”, BYD only took a very a short time.

The industry have pointed out that BYD five years ago, cut into the automotive industry, giving enterprises a strong development, while the maturity of the iron battery business, meaning that BYD’s two main industries - IT industry and automobile industry, battery-free seam integration and docking, the two industries, the strategic realignment will undoubtedly provide a strong impetus BYD follow-up development.

As automotive innovations, Wang Chuanfu BYD dual-mode electric vehicles on the confidence in the future. He said that in dual-mode electric vehicle to market next year, after the 2009 pure electric vehicles will also be available. In addition to driving electric vehicle industry chain, the BYD plans to iron battery into the notebook computers, digital cameras, digital music players, digital industry chain. Wang Chuanfu said that the current technology is not a major obstacle, the main traditional lithium battery voltage of 3.7 volts, slightly higher than the 3.3 volt-iron battery, once to solve voltage problems, this new type of battery is undoubtedly the best alternatives to lithium batteries, the market prospects immeasurably.

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12 Mar 2010

This article via: Hydration and temperature

In this paper the researchers set out to create simulations that examined the impact of hydration and temperature on the positively charged hydrated protons and water molecules. Understanding these dynamics could lead to polymer membranes that are better engineered for transporting protons while controlling electrode flooding by the water molecules. One of the goals is to develop PEM membranes that need little water.

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Using classical molecular dynamics simulations, the research team investigated the impact of four levels of hydration and two different temperatures. The scientists calculated structural properties such as radial distribution functions, coordination numbers, and dynamical properties such as diffusion coefficients of hydronium ions (H3O+) and water molecules.

The results of their calculations showed that protons and water molecules are bound to sulfonate groups in the membrane at low hydration levels. As the hydration level increases, the water molecules become free and form a network along which protons can hop (Figure 2). This leads to a dramatic increase in proton conductivity. Temperature was found to have a significant effect on the absolute value of the diffusion coefficients for both water and hydronium ions. These findings have helped in interpreting experimental results that indicate a major structural change taking place in the membrane with increasing hydration.

Dynamics of Water and Hydronium in Nafion Nanopores Examined by

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In the second paper, the authors used all-atom molecular dynamics simulations to systematically examine eight different levels of membrane hydration to closely mirror two experimental studies. They also simulated bulk water to develop a novel criterion to identify free water in Nafion. This enabled them to quantify the fraction of free, weakly bound, and bound water molecules in the membrane as a function of hydration.

The researchers found that at low hydration levels, strong binding of hydronium ions to sulfonate groups prevents transport of protons. Multiple sulfonate groups surrounding the hydronium ions in bridging configurations hinder the hydration of the hydronium and the structural diffusion of protons (Figure 3). As the hydration level increases, the water molecules mediate the interaction between hydronium ions and sulfonate groups, moving them farther apart. These results provide atomic-level insights into structural changes observed in Nafion by infrared spectroscopy.

Group in Shandong Xinfa aluminum ingot production and marketing dynamics

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Shandong Xinfa Group is a set of power generation, heating, electrolytic aluminum, alumina, carbon, fluoride salts, in the high-density, MSG, aluminum deep-processing industrial chain in one of the top ten large modern enterprise group. Annual output of 640,000 tons aluminum ingots, aluminum ingots the mainstream of today's factory Price 19.05 thousand yuan / ton, inventory is acceptable shipment in good condition.

Shenhuo Buddhist Aluminum Co., Ltd. aluminum ingot production and marketing dynamics

Guang Shangqiu Shenhuo Aluminum Co., Ltd. mainly produce "such as the solid" brand aluminum ingots for remelting, A356 alloy, aluminum rod, aluminum guide rod, aluminum ingot annual output of 270,000 tons, the mainstream of today's aluminum ingot factory quotes at 19.12 thousand yuan / ton or so, there is no inventory, shipment in good condition.

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23 Feb 2010

Sailing’s New high-end latitude c610 battery for Volkswagen cars matching

Recently, Sailing Co., Ltd. developed a new self-environmental protection, high-security cell 58043 (C6) products have technological breakthroughs, and will produce high-end Volkswagen cars for matching.

At present, Germany’s Volkswagen TL82506 new standard, is the world’s recognized lead-acid latitude c640 battery the most difficult test. Recently, FAW-Volkswagen representatives developed for the sailing 58043 (C6) cell products were environmentally friendly batteries, security TL82506 Standard Test recognition. After three days of intense and orderly trial, sailing developed 58043 (C6) cells have withstood the tilt, inverted, building pressure and ignition tests, fully meet the new Volkswagen TL82506 standards.

University of Tsukuba successfully quantum-dot solar cell conversion latitude c800 battery efficiency increased to 8.54%

The International Society of solar cell technology, “EU PVSEC” on the University of Tsukuba made public to the use of quantum dot solar cell of the photoelectric conversion efficiency increased to 8.54% of the technological achievements. Quantum-dot solar cells can reach the theoretical conversion efficiency of more than 60% of well-known is the future of efficient solar cells is one candidate.

Developed by the latitude c840 battery University of Tsukuba quantum-dot solar cells are pn junction between the multiple quantum dot layers stacked quantum-dot superlattice-based products, in the 1cm square alternately superimposed on the GaAs substrate 30, and 30-layer InAs layer GaNAs super-crystal lattice structure. Its characteristics are in the GaNAs formed on InAs, in order to ease the underlying strain between the lattice can be self-generating high-3 ~ 4nm, diameter of 20 ~ 30nm multiple quantum dots.

Lead to quantum-dot superlattice structure created between combination, in the conduction band formed on micro- sony vgp-bps2a battery, so that the use of various wavelengths of light possible.

Improve the quantum-dot superlattice type of conversion efficiency of the need to address the following issues: (1) reduce the thickness of the middle layer, and strengthen the integration between the quantum dots; (2) to enable the close arrangement of quantum dots; (3) stacking more layers . The University of Tsukuba to the middle layer thickness reduced to half of the past – 20nm, so that conversion efficiency from 3.7% to 8.54%. University of Tsukuba in the future goal is to 2020 sony vgp-bps2c battery, the conversion efficiency increased to 40%.


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