Archive for the ‘energy’ Category

Economic growth, China is the U.S. on the heels

April 22nd, 2011

Economic growth, China is the U.S. on the heels

The rise of China seems unstoppable. While other countries struggle with the economic crisis, expanding into the Middle Kingdom is the effortlessly ranking as the second largest economy, displacing Japan. But success is not without risk.

China has so far thrown the second-largest economy Japan of ancestral throne – after three decades of spectacular growth. More than 40 years held the title of Japan’s number-two behind the U.S. – but its stagnantEconomyWhile China, which marched despite the economic crisis, with around ten percent. The historic change in the top group of major economies was indeed expecting you. Nevertheless, it marks a significant milestone in China’s rise to global economic power.

The Chinese had been replaced Germany as the world’s leading exporter. They have 2.45 trillion dollars the world’s largest foreign exchange reserves and buy more cars today than the Americans. The communists in Beijing are not only the largest lenders of the heavily indebted U.S., but do in global economic and financial issues in the future a greater say in the word.

While Japan is struggling with the saturation of its market and an aging population, China still has much potential for growth: the urbanization drives millions into the cities. The standard of living is even more significant. If the economic output per head on the 1.3 billion Chinese converts, China is just one tenth of the U.S. or Japan and is ranked alongside countries such as Algeria or El Salvador.

Japan needs to "Chinese" are

"We expect the Incomeof households will grow continually, "China expert Jinny Yan says of the Standard Chartered Bank. But to bring the per capita gross domestic product to the level of developed countries, it probably needs a few more decades. "

China’s rise does not equal the demise of Japan. Its economy is still growing, but just slow. The technological edge in automotive, electronics or mechanical engineering is still huge, but would possibly shrink faster than the Japanese would like. The illusion of many bureaucrats in Japan, produce and sell in China, home to, has already burst. If Japanese companies want to remain competitive, they have more on their long-largest market in Chinainvestand produce a little "Chinese" are, as experts advise.

Conversely, the Chinese also learn from Japan – positive or negative. Thus they served Japan so far as a model for growth andInvestmentsin infrastructure, such as in the expansion of rail and road network. But the associated long-term strong focus on investments with high dependence on exports Japan has prepared for problems. The strengthening of domestic consumption, which accounts for 60 percent of economic output, has been long neglected.

Boost domestic demand so far not sufficiently

China followed carefully, as Japan has been upgraded at the urging of the United States and its currency debt is high for economic programs. "I think we should not go that path," said Lu Zhengwei, an economist of China’s Industrial Bank. When saving the world champions, the Chinese could make already high spending on infrastructure projects. "On the one hand, we need this investment, on the other we have the money," the economist, defended China’s policy "sustainable" as.

But the domestic demand, China has been able to boost not enough. Lazy lurking in the system of loans banks and local investment companies. The massive increase in lending of state banks coupled with the economic program could turn out to be flash in the pan. Thus, the development, despite impressive growth figures is rosy – even if China hailed as a new engine in the world economy.

"China’s economy remains unbalanced: it relies excessively on exports and investment," Ben Simpfendorfer warned by the Royal Bank of Scotland faces new challenges for the world economy. While China supports the global growth somewhat, there is the risk that its economy is still slowing down abruptly because of the imbalances, "says the China economist. "As the second largest world economy, China is simply too big to be rescued by the IMF or other institutions."

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The Wind Energy Industry is Nothing New

April 19th, 2011

The Wind Energy Industry is Nothing New

Though our scientists may claim that they are inventing something new by using wind as a source of generating energy, the truth is that wind is being used for centuries for this purpose. An example of this is an article published in 1838, which clearly shows that even in those times, wind was considered an important source of energy.

Here are a few quotes that were recorded in the past, which prove that wind was always important in generating energy.

John Houghton from Cambridge said in his paper Global Warming: The complete Briefing, ‘Given that it has been used as a form of energy for a couple of centuries, wind is a very common source of energy. The fact that there were about 10,000 windmills to tap wind energy in the Year 1800 itself, goes to show that wind was an important source of energy in parts of Europe like Britain. Therefore it is not surprising that parts of the world like some countries from Western Europe such as Great Britain and Denmark and some countries in western North America are trying to revive ways of tapping energy from wind. Slim, tall and more efficient objects have replaced windmills to tap wind energy.’

Even other researchers from Cambridge have worked on this subject. Vaclav Smil in his paper Energies wrote, ‘The windmills in 19th century, which were at par with watermills of that period with regard to generating power, were of a different design. They were used in farms and on Railway stations. Before that, post mills of 1.5 and 6 Kilowatt and tower mills of 5 to 10 kilowatts were used in Europe for this purpose.’

Studies tend to indicate that though the use of windmill to generate energy started in China, it soon spread to parts of Europe like England in the 12th century and by the end of the century there were 12000 mills in the region that needed little water to produce electricity to meet huge industrial demands.

Other researcher and historians like Cynthia Shea in her paper Renewable Energy: Today’s Contribution Tomorrow’s Promise points out that other European economies like the Danish industry at a particular time used wind-power to satisfy 1/4th of their power needs.

In United States of America, policy makers while stating it to former President George W Bush said, ‘Since around the year 1900, windmills were used to pump water in farms and ranches in the country. They even led to the production of electricity and turbines. Before that grain was ground and water was pumped with the help of wind mills as early as year 200 B C.’

Dennis Hayes in his paper The Official Earth Day Guide to Planet Repair also verifies the same as he says, ‘Before Carbon-fired power plants, 8 million Midwestern windmills made electricity by driving water and crushed grains. There was no other way to do so before villages got electricity in 1920s and 1930s.’

Christopher Flavin in his worldwide paper Electricity for a Developing World: New Directions has also urged the underdeveloped countries to follow American example of how they used Midwestern windmills to generate electricity for their rural sector.

Windmills have been used for centuries for pumping water in rural areas. They also grind grains and do other small tasks. Though traditional windmills can also generate power, latest technology and wind power together can be the foundation of mechanical power and can generate electricity in underdeveloped countries

The history of windmills has been penned down extensively by Wilson Clark in his work Energy For Survival: The Alternative to Extinction. With regard to Europe, he says, ‘Developed in Seventh century in Persia, windmill reached Europe through Dutch and England in thirteenth century enabling them to generate 1 billion kilowatt- hour of electricity. The wind energy produced by windmills was used as a source of power to the sailing ships. The Persians again became the first to use wind to develop mechanical power and used windmills to put out water for irrigation. Whereas windmills were used in Persia in seventh century, it reached France in 12th and Denmark, Germany and the Netherland in early 13th century.’

Wilson further talks of America. He says, ‘Industrial growth in Midwestern United States led to a situation where windmill industry had capital investment of $ 4.3 million by the year 1900 with homesteaders and ranchers having their own windmills. Efficient and long-lasting windmills were also developed due to stiff competition. The windmill industry in United States continued to grow with various windmills being tried out for the best possible option. Whereas some windmills developed in 18th century needed fewer sails, those made in 20th century could run electric generators, pump water and generate electricity for American farmers.’

Wilson also explains how 1250 kilowatt wind electric station generated that much power in the hills of Vermont during the days of Second World War. This was the hard work of a man known as Palmar C Putnam, who was finding it difficult to pay for high electricity rates in the region.

Many new ways have been developed to generate energy in the last two centuries, the world is again returning to the old ways of generating power because of scarcity of oil, gas and coal. This is because they know that energy created with the help of sun, water and wind will never get scarce or exhausted.

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Lexar announces SDXC memory card with 128 GB

January 28th, 2011

Lexar announces SDXC memory card with 128 GB


First SDXC memory cards come in the first quarter with a capacity of 64 GB and 128 in trade.

Lexar Media is during the first quarter of his first SDXCMemory Cards imagine. The maps of the range Lexar Professional 133x are with capacities of 64 GB and 128 GB for 300 euros or 550 euros come on the market.

The targeting the professional segment memory card manufacturer to achieve a 133-times the speed and thus allow data transfer rates of 20 MByte / s (Class 10). So they are slower than high-endCompactFlashCards that transfer data at up to 90 MByte / s (600x) can be transferred. For this, the SDXC memory cards hold more data. Mainstream cards in the CompactFlash format can accommodate up to 64 GB of data.

Wants by 2012 SD Card Association the transfer speed of SD memory cards triple. The new SD 4.0 specification is expected to close in the first quarter of 2011. It will raise the maximum throughput of 300 MByte / sec. The current data SDHC (SD 2.0) and SDXC card (SD 3.0) allows data transfer rates of up to 104 MByte / s.

The SD format in all its forms has to prevail in the market for flash cards and cut out nearly all competitors can – such as Sony’s Memory Stick, and Olympus’ xD-Card. Only CompactFlash has held as an alternative especially for SLRs.

The CompactFlash Association working on a proposal from Sony, SanDisk and Nikon at a Recast based on the PCI Express interface (PCIe). The maximum data throughput should be as up to 500 MByte / s increase, the maximum capacity of up to 2 terabytes.

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Acer brings All-in-one PC with 21.5-inch touchscreen

January 17th, 2011

Acer brings All-in-one PC with 21.5-inch touchscreen


The Aspire comes with multitouchfahigem Z3101 Full-HD touch screen.

Acer has its product portfolio with the all-in-one PCs Aspire Z3100 and Z3101 21.5-inch screen with expanded. The latter supports the multi-touch technology, which enables use with multiple fingers.

The largely identical models, depending on the configuration from a AMD Phenom processor series II or Athlon-powered. Added up to 8 GB of DDR3-1333 RAM and 1.5 TB of hard drive space.

The 16:9 display has a Full HD resolution of 1920 by 1080 pixels. It is controlled by the Nvidia GeForce 9200 integrated graphics chip center. The Z3100 Aspire can be additionally equipped with a discrete graphics card Nvidia AMD or equip.

Of communication interfaces (802.11b) WLAN, Gigabit Ethernet and Bluetooth 2.1 with EDR available. Other amenities include an HD audio system with two integrated speakers, a 2-megapixel Webcam with microphone, a multi-in-1 card reader, and depending on the model a dual-layer DVD burner or a Blu-ray drive. Optional accessories include a hybrid TV tuner (analog and DVB-T).

Peripherals can be connected to six USB 2.0 ports (two sides), one eSATA connector, two PS2 ports and connect each with a HDMI and VGA output. The power supply is from a 220-watt internal power supply.

The operating system is Windows 7 Home Premium. With the Z3101 preinstalled on the Aspire application portal, users can touch other multimedia content by touch gestures Manage. A bar at the bottom of the screen displays most often use anywhere in the program, with a touch can then start. There is also special touch applications like a browser optimized for finger operation.

The new All-in-one PCs from Acer are available from mid-October. The suggested retail price for both devices starts at 699 . Keyboard and mouse are included.

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Intel is experimenting with context-sensitive devices

January 11th, 2011

Intel is experimenting with context-sensitive devices

Justin Rattner, CTO and head of Intel Labs has, at the Intel Developer Forum ( IDF in San Francisco that his company plans to Context-Aware Computing presented.) By this he means devices even figure out the what in certain situations where they would like to make users. But they are "hard sensor" as motion sensors and GPS receiver as well as "soft sensor", such as calendar entries or user-entered data to draw on.

works as an example of a context-sensitive device Rattner demonstrated the "Personal Vacation Assistant" in which Intel has been a long time. The "personal holiday adviser" – still a prototype – it looks like a great navigator. With the context information it collects, it will help travelers in planning their activities.

This gives the user preferences, its one, about where it stayed like and what he considers the challenge. This information links the device with data on past activities, the present location and the entries in the calendar. On this basis, it recommends tourist attractions, restaurants and other places. At the end of the trip, the device trip report with photos and videos together one. Intel and the guide provider Fodor’s machine already have about a dozen tourists in New York City tested the.

"The sensor information is the core of context-sensitive devices," said Lama Nachman, a researcher of Intel Labs. She presented the prototype of a TV remote control, which means a number of sensors to detect who they currently hold in your hand. Nachman, according to the device recognizes people in the way they move. The underlying process called the Intel engineers ‘unsupervised learning’, which means that the sensors are always active and learn the software in the background.

If the remote control detected the user, it makes him by preferences proposals which items he should look at. These proposals appear as a pop-up menu on the TV screen.

Besides the development of concrete applications, we are concerned at Intel also to address some of the data from the hard-and soft-sensors on a platform on which the user can control them. "We need a system of categories of perception to manage context information," said Rattner. "This allows the user control which context information is passed to whom and where the information will be invalid."

Rattner did not predict when the first context-sensitive devices on the market. He said only that "these features probably will be included in the not too distant future Intel products.

Intel had in July 2010 a separate department for future research everyday devices under the name of Interaction and Experience Research (IXR) set up . A project called SENS. It automatically transmits information about the activities of the user over the network to friends and relatives. The project aims to show how the sensors of a device, the respective contexts of situation in a " socially augmented reality process "can.


Intel’s Personal Vacation Assistant is an example of Context-Aware Computing .

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University of Lecce developed low-cost electric car

November 4th, 2010

University of Lecce developed low-cost electric car

The Research Center of the Italian University of Lecce has developed according to a report by Focus Online (25/05/2009) with the VEUS 08, a low-cost electric car. Technically, the electric vehicle equipped aluminum panels and draws its power from the normal lead-acid batteries. Due to the low development costs will amount to the purchase price of an industrial production over 15,000 to 16,000 euros. Scientists consider that it is crucial that an electric car can recharge its batteries overnight from a standard wall outlet.

The range should be high and the electric car for everyday use are compatible. The weight of the VEUS 2008 amounted to 0.75 tons and the maximum speed of the electric car is 50 km / h combined with a range of 100 kilometers. The vehicle can accommodate two people and was equipped with twelve lead batteries.

For additional power supply to serve the photovoltaic systems were installed at several points in the VEUS 08th When braking occurs, recovery of energy in the power obtained at the curb. A simple gauge indicates how much the battery is charged. The prototype will make his first trip as part of an Eco-marathon and putting his prowess.

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Tesla Motors seeks to Germany

October 7th, 2010

Tesla Motors seeks to Germany

Tesla Motors seeks to Germany

The U.S. electric car manufacturer Tesla Motors wants to open the year in Germany, two showrooms and interested parties will have the opportunity to test the Tesla Roadster to home. This was announced by CEO Elon Musk the online edition of the car magazine “Auto, Motor und Sport”. In the British capital London is already the end of June, the first European showroom will be opened. The cities of Munich and Monaco would then follow next. The electric sports car Tesla Roadster has been sold 500 times on a single charge and has a range of 150 to 200 kilometers.

The energy of the powerful electric motor draws from a 7000 high cell lithium-ion battery. The top speed is 200 km / h and the sports car can accelerate from 0 to 100m km / h in less than four seconds. The Tesla Roadster will arrive in an improved version with better performance on the European car market and cost around 100,000 €. The vehicle will be presented to potential buyers by teams on site. Already this year sales of 240 vehicles is planned in Europe. The Stuttgart automaker Daimler AG has joined a few weeks ago with a stake of 10 percent for Tesla Motors. In the past week had to accept the electric car manufacturer with a damper, as had 350 Tesla Roadsters are being recalled because of problems at the rear axle.

 

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Family car Tesla Model S

September 29th, 2010

Family car Tesla Model S

Family car Tesla Model S

The California electric car maker Tesla Motors has mitgeilt new details to the family car Tesla Model S of the public. The vehicle will go into production in 2011 and is now both online and be pre-ordered directly from the producer himself. The electric car is a sedan that seats five adults and two children there. The trunk should have a high carrying capacity and should thus be sufficient for an extended family holiday. At the Tesla Model S, the drive and the battery in the rear underside of the vehicle was built. The developers have given the family car a sporty, aerodynamic design and make a good impression.

The speed is limited at 210 mph and the vehicle accelerates from 0 to 100 km / h in 6 seconds. The buyer can choose between a voltage at the battery of 120, 240 and 480 volts. The coverage amounts vary by battery with a charge of 260, 370 or 480 kilometers.

The charging amounts at 480 volts battery only to 45 minutes. By Group information, the battery can be easily expanded. The interior of the Tesla Model S has a touchscreen, UMTS, and an onboard computer. The purchase price is 43,000 Euros and is thus about 50 percent cheaper than the Tesla Roadster sports car will be delivered this year to customers.

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Capacitors and resistors

September 6th, 2010

Capacitors and resistors

Capacitors and resistors: chip-based, high-capacity, long life

Ceramic capacitor capacitor in the world market will remain dominant, small size, large capacity, high voltage, high frequency interference and the array of ceramic capacitors will be the development direction, while the products will be ceramic chip capacitors and tantalum capacitors mainstream.

Small size, large capacity, long life, high temperature, low equivalent series resistance (ESR) and other aluminum electrolytic capacitor is still the direction of development. Chip tantalum capacitor products continue to lead to smaller, high-capacity, low impedance, low equivalent series resistance direction, functional polymer tantalum capacitor production and application will be further expanded, tantalum powder CV value will continue to increase. Metallized plastic film capacitors demand will grow for the information and communications equipment, plastic film capacitor market will continue to expand. High frequency, to meet safety standards, high temperature, small size, chip type plastic film capacitor will be the direction of development.

Chip resistor resistor will continue to be the mainstream product, its size will continue to shrink, 0603 type (0.6mm × 0.3mm), will go into large-scale application stage. High resistance, low resistance and high voltage chip resistors needs to expand, the film chip resistor production and application will be further expanded with 2, 4 with a combination of type 1005 chip resistors to debut. High-power, small size, high stability, high precision metal film resistors will continue the development direction, while it will reduce the current noise and increase the added value of digital technology to the development of a metal film resistors, new applications, the precision type, ultra-precision products can not replace the chip resistors, and therefore, it will still have a certain market space. Wirewound resistors to the security of (fire), high precision, small size, direction and low resistance is the note of a trend.

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The laptop battery capacity Explanation

June 10th, 2010

The battery capacity will be better with lower drain currents. To determine the laptop battery life, divide the capacity by the actual load current to get the hours of life. A circuit that draws 10 ma powered by a 9 volt rectangular battery will operate about 50 hours: 500 mAh /10 mA = 50 hours The cell voltage of alkaline cells steadily drops with usage from 1.54 volts to about 1 volt when discharged.

Laptop batteries are rated by, Voltage (V) and Milliamp-hours (mAh). Voltage is the rate at which energy is extracted from the battery and Milliamp-hours represents the capacity of the battery. The milliamp-hour rating corresponds to the runtime of the HP Pavilion dv4 Battery .

Batteries with different Milliamp-hours can be used in the same laptop provided the voltage is the same. The voltage must match the original HP Pavilion dv5 Battery or as recommended by the computer manual. Using a battery with a different voltage setting can seriously damage the laptop.

The power specifications of most compatible / replacement batteries are higher than the original battery manufacturers. This will not damage your laptop, in fact, simply means that in many cases these Dell Latitude D830 battery last longer than the original battery manufacturers. Ask the experts as
PowerUp on compatible replacement laptop batteries.

The runtime of a laptop battery will vary on individual notebook computers, based on the applications being used (ie high graphics, games), the number of times something is saved or retrieved from the hard drive and / or CD Rom, memory notebook, and chemistry and HP 510 battery capacity. A realistic average runtime of a battery is 1.5 to 3 hours. Using devices like a wireless adapter on the laptop also drains the battery considerably.

The life of a HP 530 battery under normal conditions is about 500 to 900 charge-discharge cycles. This is a year and a half to three years of battery life for the average user. As the rechargeable battery begins to fail, the duration of the battery begins to decrease.