Lenovo ThinkPad X40 Laptop Review, via lenovo-batteries.com blog

Lenovo ThinkPad X40 Laptop Review, via lenovo-batteries.com blog

 

The ThinkPad X40 is the smallest and IBM notebook to date. In addition to today’s society, ultraportable, the ThinkPad X31, ThinkPad X40, the only 1.25 kg (25 percent lighter than the ThinkPad X31) and weighs is about 20 percent smaller, so must it the dream machine for the frequent business travelers as tn ‘for High-end computing power or a large screen. Encased in titanium composite carbon fiber reinforced hard plastic case that is three times the strength of ABS plastic, the company offers mobile laptop users all the functions and the connection to work on the road more comfortable. Like its predecessor, the ThinkPad X40 is standard for portability, battery life and wireless connectivity in a mobile computing system, but his performance is limited.

Key Features

• Laptop Type: Ultraportable Laptop


• Use: Corporate Business • Small Business • Business


• Processor: Pentium M 1.2 GHz


• Installed Memory: 256 MB (DDR SDRAM)


• Hard Drive: 40 GB IDE, 4200 RPM


• Display: 12.10 in. XGA TFT LCD


• Operating System: Microsoft Windows XP Professional


• Mobile Technology: Intel Centrino Mobile Technology


• Weight: 2.60 lb.

Processor

• Processor Manufacturer: Intel


• Processor Type: Pentium M


• Processor Speed: 1.2 GHz

Motherboard

• Chipset: Intel 855GME


• Bus Speed: 400 MHz

Memory

• Installed RAM: 256 MB


• RAM Technology: DDR SDRAM


• Max Supported RAM: 1 GB


• RAM Speed: 333 MHz


• Installed Cache Memory: 1024 KB

Hard Drive

• Hard Drive Capacity: 40 GB


• Hard Drive Rotation Speed : 4,200 RPM


• Storage Controller Type: IDE

Display

• Display Tech: XGA TFT LCD


• Screen Size: 12.10 in.


• Display Color Support: 24-bit (16.7 million colors)


• Display Max. Resolution: 1024 x 768

Video

• Graphic Processor: Intel Extreme Graphics 2


• Graphic Bus Interface: AGP


• External Video Resolution: 2048 x 1536

Audio

• Audio Output Type: Sound card


• Audio Input Type: Microphone


• Operating System: Microsoft Windows XP Professional


• Platform: PC

Technical Features

• Expandability: 1 x Type I/II PC Card Slot, 1 x SD Card Slot, Docking Station/Port Replicator


• Expansion Ports: 4 x USB 2.0, VGA out, RJ-11 (modem), RJ-45 (NIC)


• Security Features: HDD Password, Power-On Password, IBM Embedded Security Subsystem 2.0, Administrator Password, IBM Security Slot


• Input Method: Keyboard • Trackpoint

Networking

• Networking Type: Integrated Network Card • Integrated Wireless LAN


• Data Link Protocol: Ethernet • Fast Ethernet • Gigabit Ethernet • IEEE 802.11b

Modem

• Modem Type: Modem


• Analog Modulation Protocol: ITU V.90

Battery

• Battery Run Time: 3.5 Hours


• Battery Technology: Lithium ion

Dimensions

• Width: 19.60 in.


• Depth: 8.30 in.


• Height: 1.10 in.


• Weight: 2.60 lb.

Miscellaneous

• UPC: 000435231543


• Product ID: 21898166


• Family Line: Lenovo ThinkPad

More Information

• Details: IBM ThinkPad X Series notebooks offer ultimate mobility in a versatile ultraportable. The ThinkPad X40 provides Intel Centrino mobile technology including the Intel Pentium M processor on select models, all-day battery life (up to 10 hours) on select models, and a full size keyboard in a design featuring the smallest footprint in its class. Enhancements also include the IBM Active Protection system, IBM Powered USB 2.0 Port and a Secure Digital card slot.

 

Ultra slim and stylish IBM ThinkPad X40 - despite its small drawbacks such as lack of touch screen, a full suite of business applications or the latest connections - is the professional notebook of choice for many professionals.

In general, the style and performance, IBM wins the day. The essential argument and the best feature is the large (almost perfect) keyboard. get the full sense of the sound and writing over.Coming many only 3.2 kg and 1.3 inches with a 40 GB hard drive, 256 MB of RAM installed only one inch 12.1-inch screen, but it crisp.It Bright covers the basics with a pair of USB ports, audio based on a link to a screen, SD card slot, and network and modem. There is Wi-Fi 802.11b loans (with optional Bluetooth.) Optional X4 UltraBase Dock offers an optical drive, parallel port, the third USB 2.0 port, but still no TV or Firewire output.

• Cons: No touchpad bad connections.


• Advantages: great keyboard, elegant style and quality of IBM, light and ultra portable.


• Conclusion: Despite some drawbacks, the quality of IBM and a large keyboard makes the X40 ultra-portable of choice for professionals in most companies.

 

Replacement For Lenovo/IBM ThinkPad X40 Laptop Battery

Lenovo thinkpad x40 battery(14.4V ,4400mAh) with Lithium ion Pack For Laptop Power

Condition: Brand New Shipping time:shipping Lenovo/IBM ThinkPad X40 battery usually need 5-12 days. Fit Models:Thinkpad X40 X41 Series Laptops etc.

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• Voltage : 14.4V


• Battery Capacity: 4400mAh


• Battery Color: Black

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Lexus HS250h reconfigure parts of the battery subsidiary

Lexus HS250h reconfigure parts of the battery subsidiary

Toyota has just listed hybrid "Lexus HS250h" the engine and drive shaft (Transaxle), although we have been listed in the U.S. "Camry Hybrid (CamryHybrid" basic GM, but Toyota part by changing the configuration of the back seat substantially expand the luggage compartment space.

"Camry Hybrid" will be used to lower the battery temperature air suction port configuration in the rear seat position behind the scaffolding. Sunlight, it will lead to the location of the temperature rise. Even if want to use air conditioners, as is the sedan, the air flow can not be here, so air conditioning is also difficult to reach. Moreover, the rear seat passengers will hear fan noise.

HS250h moved to suction the left back seat. As a result, not only to breathe the air cooled by air conditioning, but due to the waist at the location of the crew is not easy to hear noise.

HS250h use of the advantages of hybrid-specific design, re-configured in the subsidiary parts of the battery behind the rear seat. The original battery in the battery control circuit installed in front of the power used in the above nickel-metal hydride batteries, and will highlight the original inside the baggage compartment, auxiliary devices configured in the power lead-acid batteries with a battery side. Can be seen from the side view, originally arranged in order from front to back control circuit, power assist device with a battery and battery, and HS250h control circuit configuration will be in the top of the battery power, so that the auxiliary power unit with battery and the space occupied by the same battery.

As a larger luggage compartment space, can hold four 9.5-inch golf bags. Lexus hybrid original estimate is inserted into position in the pre-designed battery power, so the luggage compartment space is tight. Can hold four golf bags or for the first time. The capacity of the small space in particular "Lexus GS450h" nearly twice as much.

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Dell Inspiron E1705 Laptop Review

Dell Inspiron E1705 Laptop Review

 

Dell Inspiron E1705 is a portable 17-inch widescreen display offers the latest Intel Core 2 Duo (Merom) processor. The Inspiron E1705 is configured entertainment notebook with T5600, T7200 or T7400 Core 2 Duo CPU, Intel Core Solo and Duo. It has 2GB of SDRAM, up to 200 GB SATA hard drive and DVD recorder. This graph is (128 MB dedicated and up to 128 MB shared) by the ATI Mobility Radeon X1400 with 256 MB of memory supplied with power, but can be upgraded with the NVIDIA GeForce Go 7900 GS with 256 MB dedicated video memory.

Specifications:

• Inspiron E1705


• Intel? Core? Duo T2300 (FSB 1.66GHz/667MHz)


• Windows Genuine? XP Media Center Edition 2005


• LCD 17 "UltraSharp? Wide Screen UXGA with TrueLife? Br> Shared Memory 1 GB Dual Channel DDR2 SDRAM at 533 MHz


• 256 MB NVIDIA graphics card? GeForce? Go 7900 GS


• Hard Drive 60 GB 7200 rpm SATA HDD


• AC Power Adapter 90 Watt Power Supply Replacement


• Operating System (Office software not included) Genuine Windows? XP Media Center Edition 2005


• Integrated 10/100 and modem


• Adobe Software Adobe? Acrobat? Reader 6.0


• 8x DVD + RW combo CD / DVD (DVD + /-RW) with Double Layer DVD + R capacity


• Sound Options Integrated Sound Blaster? Audigy? ADVANCED HD Audio


• Intel wireless cards? PRO 3945 and Dell 350 Bluetooth Internal Card


• Office Software (not included in Windows XP) No productivity suite-Corel WordPerfect word processor only


• Anti-Virus/Security Suite (pre-installed) No Security Subscription


• Primary Battery 53 WHr 6-cell lithium-ion dell laptop batteries


• Large backpack handbags


• 1 year warranty on hardware Ltd Warranty, 1 Year Mail-In Service, 1 year warranty HW


• Dial-up access six months include America Online Membership


• Broadband Mobile Broadband ExpressCard technology is not in the market today


• New Operating System Genuine Windows installation CD? XP Media Center Edition 2005 re-installation CD


• Dell Digital Entertainment Starter Entertainment Pack - Basic digital Music, Photo and Game experience

Ports and Terminals:

• 1 x S-Video connection


• 1 x VGA port


• 1 x DVI port


• 1 x Modem


• Network socket x 1


• 6 x USB ports


• 1 FireWire


• 1 x PCMCIA slot


• Headphone and microphone


• SD / MMC

 

The Inspiron E1705 is the replacement for a desktop system to cause very stile what users can do based. This is one of its greatest strengths but also weaknesses. Consumers have a clear idea of what the devices are used to buy, if they have them. After all, you can buy in a very limited budget settings at the level of a class of portable game consoles.

Dell is usually well ahead of the curve when it comes to the integration of advanced technology at affordable prices and this time is no different. The Dell Inspiron E1705 Inspiron 9300 multimedia notebook updates with new Intel Centrino Duo mobile technology and many other fine features. Although the focus (both components and performance) is entertainment, the E1705 is the perfect addition to complement the digital home, even for games.

You have two options for the E1705 displays, either a matte WXGA + or UXGA TrueLife style. The E1705 I have is equipped with the UXGA TrueLife screen. E1705 speakers are on the underside of the notebook. The speakers are very good for a laptop and easy to get strong enough to comfortably hear a DVD an entire room. The E1705 processor on this machine works with the review GHz Dual-Core 2.0 - meaning multi-tasking is what this team was born to do. All benchmark results are a laptop E1705 standard - no overclocking or update the driver in fact. The E1705 works well when in a room of about 70 degrees Celsius and is seated at a table, the fan is quiet and capable of dissipating openings when using the laptop for basic tasks in the office.

 

Dell E1705 Battery Information

I have a 9-cell battery with the long-term E1705. The standard battery is a 6-cells. Adjust the brightness with Wi-Fi, the Level 3 (maximum 7) and the E1705 for the functions of the light, I’m 2 hours 41 min battery life before the notebook entered forced hibernation, the remaining 5% battery occurs. For a 17 "laptop is actually pretty decent, but considering it was using light (this review write was performed) and Wi-Fi has had to test it very mildly. When you play a DVD and Wi-Fi battery should be about fall 2 hours.. With a desktop-replacement laptop with a fast processor and graphics cards High-End, expect battery life, can be too thin, however. You can do most bettery with a model E1705 with integrated graphics, brightness at minimum and the Wi-Fi - but the funny thing is that when you have a laptop screen 17 may be "just realize that you probably have to hide, say, near a power outlet, and that most of these books are primarily as a desktop replacement there is no doubt in order again, which this application. An interesting aspect is that it pressed a button battery that shows how much charge is left can be. A series of 5 green LED battery lights up and shows you how the battery is full, which is useful when you start your computer, just to see how much battery life left do.

Replacement For dell inspiron E1705 Battery

[4400/6600mAh,11.1V] Brand new dell inspiron e1705 battery rechargeable.

Dell inspiron E1705 laptop battery is a high quality rechargeable replacement battery which can 100% compatible with the OEM inspiron E1705 battery which can works with a lot of dell notebook laptop computer. dell inspiron E1705 laptop batteries are warranted for a full year to ensure your complete satisfaction.

• Brand: dell (Not OEM)


• Category: batteries


• Chemistry: Li-ion


• Volt: 11.1V


• Capacity: 4400/6600mAh


• Net Weight: 528.00 g


• Dimension:177 x 115 x 45mm

inspiron E1705 battery Detail:


• Li-ion 11.1V 6600mAh Black dell inspiron E1705 battery .


• This dell inspiron E1705 laptop battery has passed strict quality assurance procedures to achieve international standards such as CE, UL Listed.Brand new, never refurbished, 100% compatible, No memory effect.


• This battery replace OEM code : 310-6321,,310-6322, 312-0340, D5318, G5260, G5266, U4873


• This battery fit models : inspiron 6000 , inspiron 9200 , inspiron 9300 , inspiron 9400 , inspiron E1705 , inspiron xps gen 2 , inspiron xps m10 , inspiron xps m110 , etc.

 

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Car battery power to seize the high prices, experts called for calm reflection

Car battery power to seize the high prices, experts called for calm reflection

SAIC project manager of new energy vehicles, said recently that the current SAIC battery development is weak. SAIC chairman Hu Maoyuan said the auto companies should be between joint R & D, "Power battery is very concerned about each company's technology to enterprises in accordance with market principles by the organization of joint research and development, for national support, the development of national standards, corporate Shared R & D results. "

In fact, the car companies and other key components in the battery research and development is relatively weak, and this is precisely the core of new energy vehicles, the largest part of the industrial value, so big hurry Zhengqu Automotive Group is a breakthrough, occupy the high ground.

Zhou Wenjie said the deputy general manager of Dongfeng Motor, Dongfeng future in batteries, electrical and electronic control must have its own core technology and patents, "hoping to control strategic resources." Changan Auto executives said the key components in the R & D, Chang is the most certain electronic control systems, and batteries, electric motors have to find matching system.

Even if the new energy battery is the "boss" of BYD, is also facing battery intellectual property rights. It has always been vested on the BYD iron battery patent challenge. It is understood that BYD currently has thousands of "patent engineer" and a large patent database, patent all possible risks estimates.

The collective experience of the battery car companies prompted the bottleneck problem. Many experts have to face "hot" momentum loudly, hoping to acquire new energy auto companies core technology as soon as possible, and do not ignore the improvement of traditional technology upgrade.

The industry believes that the new energy vehicles should not be simply equated with hybrid vehicles, pure electric vehicles and fuel cell vehicles, and the marginalization of other alternative energy sources, if a large amount of new energy vehicles can not reach but easy to use, it can not be popular.

Car companies have different voices within. Yuan Tao, deputy general manager of Chery Automobile believe that an effective way to solve the problem is to achieve diversification, and should continue to strengthen the traditional gasoline engine fuel economy and reducing consumption. Ford senior technical expert of the original Yang Jialin that the energy conditions are so severe, if not fuel-efficient vehicle power technologies mainstream efforts, it is unrealistic and dangerous. When a large number of foreign low-cost, low fuel consumption of automotive products to enter the Chinese market, independent of the mainstream brands will not be able to compete.

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Canon EOS 40D Camera Review

Canon EOS 40D Camera Review

 

The EOS 40D is the sixth "prosumer" Canon’s digital SLR, a line that began in 2000 with the EOS D30, and how we did. It is now 18 months since the EOS 30D and if it looks the surface of the 40D because it is a fairly subtle upgrade there are many things that makes a better camera. Of course, we hope that a step in megapixels, so the 40D comes with a CMOS sensor Sensor ten million pixels with the same type of dust reduction as the EOS 400D For ultrasonic platform which shakes the low pass filter. Further improvements to the EOS 40D more in harmony with the EOS-1D series, including a train on the same page after page of the menu system, RAW and sRAW (2.5 MP), 14-bit A / D and 14 - bit RAW, points cross type AF F5. 6 or more rapidly, more and bright viewfinder, interchangeable focusing screens, a larger LCD screen (3.0 ") and faster continuous shooting (6.5 fps).

Main features of the Canon EOS 40D:

• Increased efficiency of 10.1 megapixels with larger microlenses


• Widescreen 3.0-inch LCD with improved color space


• Live Show


• 6.5 fps capability of continuous shooting (3 fps also available)


• In 6.5fps, the buffer contains 75 Large / Fine JPEG or 17 RAW images


• In the buffer of 3 frames per second is about 205 Large / Fine JPEG or 20 RAW images


• New AF system with 9 cross type sensors


• Improved accuracy of the central AF 2.8 and faster.


• 14-bit A / D processor DIGIC III


• New mechanism for the silent shutter mirror


• Highlight Tone Priority


• High ISO NR


• The Integrated Self Cleaning Sensor


• Increased (0.95) Optical viewfinder magnification (0.90x 30D)


• Interchangeable focusing screens


• Continuous display of ISO in viewfinder


• Auto ISO mode


• ISO 100-1600 More "H" (3200) (eg, 30D)


• Powered by BP-511A, BP-511 battery or Lithium Ion BP-512


• stores images on CF cards


• first Price $ 1,299.00


• Availability - Now available!

 

This photo of the back of the Canon EOS 40D shows some of the new external functions. The large 3 inch LCD screen is immediately noticeable, especially for owners of the EOS 20D (20D has a 1.8 "LCD). There is a new dedicated AF button on the top right and" Picture Style button (the button right of the screen below). Otherwise, the layout of controls should be very familiar to users of EOS 20D/30D.

True to the line, the Canon EOS 40D is very similar to their predecessors, especially the EOS 30D and 5D. From the rear, but there is one big difference: The 3.0-inch LCD. His influence on the design of the control is returned if he had four big buttons that normally move to the left of the screen, dressed down, below the LCD screen. When it comes to displaying images, Live View composition or change the settings menu is the large LCD.

 

The top cover of the Canon 40D is more familiar with only minor differences. The mode dial on the left has some additional icons, C1, C2 and C3, which are areas of convenient storage for frequently used settings, a welcome addition. optimized on the right side of the main difference in a special section on the status LCD on permanent display in the current ISO standard, the word "car" is another interesting addition to the 40D Creative as’ specific skills (is Auto ISO is the default in Full Auto and scene modes). Later, the models should have the ISO button to display the current configuration.

UI measured faster, especially when using manual exposure or exposure compensation settings:

• two wheels instead of a


• Excellent durability and protection against dust and rain


• The largest physical size, the necessary controls in a natural position for most adult hands


• LCD better or brighter and more


• (for soccer moms) and the best system for auto focus unit upside faster to capture peak action in a sporting event

As with other modern digital SLRs, the Canon 40D on almost immediately and is very sensitive, a welcome improvement on a typical point and digital cameras.

 

Although none of the cameras to support AA batteries (which some, including myself, prefer) of the box, which support some of their optional battery grips.

Would the battery life better? Then take the battery grip BG-E2 news. This has two BP-511A or six AA batteries, twice the battery life of the camera alone. You can use Grip BG-E2 of the age and use - the difference is that new watertight compartments with climate. Both clips are additional buttons that are practical for inclusion in the portrait orientation.

If you shoot in portrait mode, especially when taking in that long, a portrait of accessories / vertical grip is a great victory. It gives a much more comfortable and stable "dslr battery grip" on the camera body. There are many shooters for the Canon EOS 40D are (they attach to the bottom of the unit as shown above). The first 20D/30D to handle - the Canon BG-E2 (now deleted). The second is new at this time Canon BG-E2. Add This handle is not surprising that the "AF-ON", but a little time stamping.

 

Canon EOS 40D Battery Grip Replacement

• EOS 40D Grip replacement specifications :


• Voltage : 7.4V


• Capacity :


• Battery Type :


• Dimensions : 143.0×76.0×110.5mm

Canon eos 40d battery grip Replacement - Product information

• The Canon EOS 40D Battery Grip Replacement inbox: battery grip, AA battery box!


• EOS 40D Battery Grip Replacement charger: Input- 100V~240V AC 50/60HZ 0.5A, Output - 12.5V DC 750mA .


• Product Type : Battery Grip Replacement for CANON EOS 40D/EOS 30D/EOS 40D DSLR cameras.


• The most attractive point is that the EOS 40D Battery Grip Replacement can use high capacity Lithium Ion battery, which makes more shots actual in one full charge and makes it a dreaming product for professional photographers.


• The Canon EOS 40D Battery Grip Replacement equipped with a vertical-grip shutter button, command dial, AE lock/FE lock, and AF point selector button to enable shooting in the same fashion as a horizontal grip.


• Order Canon EOS 40D Battery Grip Replacement today: Full One year waranty and 30days money back.

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Solar cells

Solar cells

Principles of solar cell power generation

Solar cells is a response to light and can convert light energy into electrical power devices. Photovoltaic effect can produce many kinds of materials, such as: silicon, polycrystalline silicon, amorphous silicon, gallium arsenide, copper indium selenium. They are basically the same principle of power generation is now crystal as an example to describe the light generation process. P-type crystalline silicon doped with phosphorus can be obtained through N-type silicon, the formation of P-N junction.

When the surface of solar cells exposed to light, the part of the photon absorbed by silicon material; photon energy transfer to the silicon atom, the electron transfer occurred in Vietnam, becoming free electrons in the P-N junction potential difference formed on both sides of gathering, when the external access through the circuit, under the effect of the voltage, current will flow through the external circuit to generate a certain output power. The essence of this process: photon energy into electrical energy process.

About Sun

The sun is the nearest star from Earth is the center of the sun object, its mass accounted for 99.865 percent of total mass of the solar system. Sun is the only solar system objects in their own light, it brings light and heat the planet. If there is no exposure to sunlight, the ground temperature will quickly drop to near absolute zero. As sunlight exposure, average surface temperature will be maintained at around 14 °C, the formation of the human and the majority of biological survival. In addition to nuclear, geothermal and volcanic energy, the ground most of the energy are directly or indirectly related to the Sun.

The sun is a mainly composed of hydrogen and helium gas hot fireball with a radius of 6.96 × 105km (109 times the Earth radius), mass of about 1.99 × 1027t (33 times the Earth mass), the average density of about Earth 1 / 4. The effective temperature of the sun's surface 5762K, while the internal temperature of the central region and up to tens of millions of degrees. The sun's energy comes mainly from the hydrogen fusion reaction together into helium, there are 6.57 × 1011kg per second polymerization of hydrogen helium 6.53 × 1011kg, continuous production of 3.90 × 1023kW energy. The energy form of electromagnetic waves to 3 × 105km / s speed through space shooting in all directions. Global solar radiation the Earth receives only one half of 2.2 billion, that is 1.77 × 1014kW reach the Earth's atmosphere on the edge of the ("upper bound"), due to the attenuation through the atmosphere, the last of about 8.5 × 1013kW reach the surface, this generating capacity equivalent to the number of dozens of times around the world.

According to the current estimated rate of nuclear energy produced by the sun, hydrogen is sufficient to maintain reserves of 60 billion years, Earth's internal organization of the polymer into helium by thermonuclear reactions, it is about 50 billion years of life, so in this sense, it can be said of the sun energy is inexhaustible.

Sun's structure and energy transfer methods are briefly described below.

Great mass of the sun, the sun's own gravity, solar material gathered to the core, the core center of the high density and temperature, making the nuclear reaction can occur. The nuclear reaction is the sun's energy, the energy generated by continuous radiation to space, and control the activities of the sun. According to various indirect and direct information, that the sun can be divided from the center to the edge of the nuclear reaction zone, radiation zone, convection zone and the solar atmosphere.

(1) Nuclear reaction zone

25% of the solar radius (ie 0.25R) in the region, the core of the sun, focusing the sun more than half the quality. Here temperature is about 15 million degrees (K), atmospheric pressure is about 250 billion (1atm = 101325Pa), the density close to the 158g/cm3. This part of the total energy generated by solar energy produces 99% of the total, and radiate outward convection and radiation methods. Emit gamma-ray polymerization of hydrogen, these rays through the colder areas, energy consumption, increasing wavelength, into X-ray or ultraviolet and visible light.

(2) radiation zone

Outside of the nuclear reaction zone is the radiation zone, belongs to range from 0.25 ~ 0.8R, the temperature dropped to 13 million degrees, the density dropped to 0.079g/cm3. The energy generated in the solar core from the radiative transfer through out the region.

(3) convective zone

Outside the radiation zone is the convection zone (troposphere), belongs to range from 0.8 ~ 1.0R, the temperature dropped to 5000K, the density of 10-8g/cm3. In the convection zone, the energy spread mainly by convection. Inside the convection zone and part is invisible, they can only rely on the nature of observation consistent with the theoretical calculations to determine.

(4) solar atmosphere

Can be divided into ball of light, color ball, corona and other levels, all levels have significantly different physical properties. The lowest level of the solar atmosphere called the photosphere, the sun almost all the energy given from this level. Continuous spectrum is basically the sun's photosphere spectrum, absorption lines within the solar spectrum is basically formed within this layer. The thickness of the photosphere is about 500km. Chromosphere is the solar atmosphere of the middle, is the outward extension of the photosphere, has been extended to thousands of kilometers can be high. The outer solar atmosphere called the corona, the corona is extremely thin gas shell, can be extended to several solar radii away. Strictly speaking, the only form of stratified solar atmosphere the significance, in fact, does not exist between the layers is a clear boundary, and their temperature and density with height is continuously changing.

Visible, the sun is not a certain temperature blackbody, but the many layers of different wavelengths of radiation, the radiation body. However, in the description of the sun, the sun as the temperature is typically 6000K, 0.3 ~ 3.0µm wavelength of the black body radiation.

Recent development of solar energy utilization

Has learned from the Shanghai Science and Technology Commission, East China Normal University researchers using nano-materials in the laboratory success "recycling" chloroplasts, in a very low cost to achieve energy generation.

Chloroplast is the site of photosynthesis of plants, effective conversion of sunlight into chemical energy. The research group of plants in vitro is not "copy" of a chloroplast, but developed a similar chloroplast structure and a new battery --- dye-sensitized solar cells, convert light into electrical energy trying. In Shanghai Nano Special Fund's support, after 3 years experiment and explore, this bionic photoelectric conversion efficiency of solar cells for more than 10%, nearly 11% of the world highest level.

Project Manager, East China Normal University is satisfied with the advanced equipment Optoelectronic Integrated Engineering Research Center, Ministry of Education, Professor Sun Zhuo demonstrated a new type of solar cells, "sandwich" structure sandwiched a layer of insulating glass nano --- "sandwich", photoelectric conversion of the mystery hidden in this layer tens of microns thick composite film. Nano "sandwich" and "formula" is unique: Dye to act as "light-harvesting hand", nano titanium dioxide is a "media converter." Dyes as much as possible in order to "eat" the sun, researchers even inspired to spread the point "sauce" --- a fluorescent material by the nano-dots, so that different wavelengths of light can be on a "fishing light hand "and" appetite. " Continue to improve as long as the "recipe" nano "sandwich" of the photoelectric conversion efficiency can be improved again and again.

As a third generation solar cells, dye-sensitized cells is the biggest attraction of cheap raw materials and simple production process. It is estimated that the cost of dye-sensitized cell silicon solar panels equal to only 1 / 10. At the same time, it less demanding lighting conditions, even in the sun is not enough room, the photoelectric conversion rate can not be seriously affected. In addition, it also has many interesting uses. For example, using plastic instead of glass "plates" can be bent into flexible batteries; to make it into the monitor, you can side of the power generation side of the light, to achieve energy self-sufficiency.

Solar energy is a clean and sustainable energy, development of solar energy in the power generation process to reduce use of fossil fuels, thereby reducing air pollution and global warming.

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Lenovo ThinkPad T500 Laptop Review

Lenovo ThinkPad T500 Laptop Review

 

The ThinkPad T series of famous models are top real estate through a lot. Therefore, each new model with great attention than expected. This time, Lenovo will incorporate some interesting news. New Lenovo ThinkPad T series has new naming convention.

The T500 ThinkPad is the latest update from 15.4 to long-term Lenovo T series. The combination of the latest generation of Intel goodies, ATI Hybrid, and DisplayPort connection this notebook has to offer many new things in previous ThinkPads. With all these changes in place, Lenovo remains the same version we expect, or quality standards slipped through the cracks?

T500 (incomplete) Centrino 2 based on the platform and you can read our review of the Centrino 2 platform HERE. Lenovo has decided to use an Atheros wireless adapter instead of Intel, and therefore there is no certificate T500 Centrino. Notebook is the latest generation of Intel processor that has great benefits (2.53 GHz, 1066 MHz FSB) and fast hard drive forever, of course. Resolution 1920×1200 (WUXGA) matte screen on the 15.4′’seems almost unreal. Of course, not lose many words about the quality of the image, but it really is true delight graphics subsystem.

 

ThinkPad T500 Specifications:

• Display: 15.4 "1680 x 1050 WSXGA + LCD (Matte)


• Processor: Intel Core 2 Duo T9600 (2.80GHz, 1066MHz FSB, 6MB cache)


• Memory: 2 GB of DDR3 RAM


• Storage: 160 GB hard drive (7,200 rpm)


• Optical Drive: DVD + /-RW


• Wireless: 802.11b / g, Bluetooth 2.0


• Graphics: ATI Mobility Radeon 3650 with 256 MB or Intel X4500 integrated (hybrid switching)


• Integrated webcam


• Battery: 9 cells (84 h W nominal, real 81Wh)


• Dimensions: 14.1 x 10/10.9 "x 1.8"


• Weight: 6 lbs 7.2 oz (w / 9 cell battery)

Lenovo currently offers two different views for the T500. The first is a panel with LED backlight WXGA 1280×800 and the other is a 1680×1050 WSXGA screen. The panel WSXGA significantly higher compared to the same work area and resolution, especially when working with multiple windows open. LED panel on the other hand, has a higher brightness and better lighting.

However, if you really need much space for CAD programs or image editing, the WSXGA panel may be limited, and you’d better take a look at the series ThinkPad W500, a WUXGA (1920×1200 pixels) offering.

Our test model was equipped with a 1680×1050 WSXGA slab. It reaches a maximum value of 203cd / m in the central area of the screen, and meets the manufacturer’s specifications of 200 nits (cd / m²).

Although the brightness was in the viewing area in the upper left, at least 169.4cd / m², the screen is a good illumination of 83.7%.

 

Lenovo thinkpad t500 laptop battery

Lenovo Thinkpad T500 usually contains a rechargeable lenovo thinkpad t500 battery 6-cell lithium ion with a capacity of 5200mAh (56.16Wh). In addition, there are also a 9-cell battery and Ultrabay battery available. The larger 9-cell primary battery is identical to the T61 models and get a small lift in the back of the notebook. What the 9-cell battery, however, the T61 Ultrabay battery models used in the ThinkPad T500. However, it is possible to define a T500 Ultrabay battery in the Ultrabay slot of a T61 model.

6-cell battery is not unique to the case and moved a little. The portable T500 was able to run the battery test units high (minimum brightness, the energy saving mode, compared to WLAN) to a maximum of 276 minutes with 6-cell battery. Under load, the battery test Eater Classic (maximum brightness, maximum power and more power), which took only 61 minutes to drain the lenovo battery. Both results were obtained with the graphics card active. In addition, ATI PowerPlay with disabilities in the conventional test, the laptop delivered the same performance as if it had been inserted media

The autonomy of the T500 in the classical test has increased by 82 minutes with integrated graphics, which represents an increase of 22 minutes. The energy consumption shows that Thinkpad T500 consumes less power 3.5 W with integrated graphics, compared with the dedicated ATI graphics card. The low consumption of the chip is also significantly under load.

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