Archive for November, 2009

Batteries Future: Dirt-Powered Bacteria Batteries

November 29th, 2009

what it is
Bacteria are one of the most abundant organisms on the planet and also one of the most studied. Scientists use bacteria for genetics research, antibiotics, even biofuels. Recent technological advances have made a battery(Dell inspiron 1721 battery) running on bacteria a reality. Known as microbial fuels cells or MFCs, batteries running on bacteria and other microbes have been keenly researched by scientist for decades.

How bacteria powered batteries work
Contrary to popular belief, bacteria do not directly produce electricity in a MFC. Bacteria powered batteries use the chemical energy generated by bacteria, and convert it into electrical energy using a relatively simple mechanism. Like most batteries, a bacteria powered battery has an anode (the negative end) and a cathode (the positive end). In addition to the anode and cathode, a bacteria powered evo n600c battery also has a membrane capable of filtering electrons (anions) and protons (cations) produced during the chemical breakdown of substances by bacteria.

Once the bacterial breakdown starts producing ions, the anions are transferred from the cathode compartment via an external circuit and the protons are sent to the cathode from the anode. In a nutshell, the chemical energy generated by bacterial activity is converted to electrical energy.

Unfortunately, not all bacteria are electrochemically active and require a substance known as a ‘mediator’ to facilitate the flow of ions. Substances like thionine, methyl viologen, methyl blue, humic acid and neutral red were used as mediators but their toxicity was a major concern for scientists. A few years back scientists engineered electrochemically active bacteria, and the science of bacteria powered batteries took a huge leap forward. Mediator less MFCs can run on everything from waste water to a simple saline solution and are truly environment friendly batteries such as inspiron 1721 battery.

Recent developments
Harvard scientists working under the Lebone banner have created a bacteria powered battery that uses bacteria found in African soil. What is truly remarkable about the MFC created by Lebone is that the Dell inspiron 1721 battery uses a layer of sand as the ionic membrane, mud with manure as the bacterial substrate, and a graphite cloth as the anode.

Like most eco-friendly and renewable solutions, the MFC created by Harvard scientists uses substances readily available throughout Africa and is expected to provide electricity in remote parts of Africa. In fact, the only non-biodegradable substance used in the bacteria powered pa3465u-1brs created by Lebone scientists is probably the 5 pound plastic bucket used to case the battery. Although the amount of energy produced by the bacteria powered battery is far from amazing, it can produce enough power to run a few LED lights and small electronics.

The future of bacteria powered batteries
Organizations like Lebone are one of the many organizations that are investing time and money in creating truly eco-friendly renewable energy options. The quest for a truly eco-friendly energy source may not have ended with bacteria powered batteries, but MFCs are a step forward in the right direction. With regular batteries clogging waste grounds the world over, recyclable energy sources like bacteria powered batteries are necessity.

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Can Battery get Breakthrough ?

November 26th, 2009

Two years ago ,a Texas company says it can make a new ultracapacitor power system to replace the electrochemical batteries in everything from cars to laptops.A secretive Texas startup developing what some are calling a “game changing” energy-storage technology broke its silence this week. It announced that it has reached two production milestones and is on track to ship systems this year for use in electric vehicles.EEStor’s ambitious goal, according to patent documents, is to “replace the electrochemical battery” in almost every application, from hybrid-electric and pure-electric vehicles to laptop computers to utility-scale electricity storage.

The company boldly claims that its system, a kind of battery-ultracapacitor hybrid based on barium-titanate powders, will dramatically outperform the best lithium-ion batteries on the market in terms of energy density, price, charge time, and safety. Pound for pound, it will also pack 10 times the punch of lead-acid Dell inspiron 1721 battery at half the cost and without the need for toxic materials or chemicals, according to the company.

The implications are enormous and, for many, unbelievable. Such a breakthrough about KD476 has the potential to radically transform a transportation sector already flirting with an electric renaissance, improve the performance of intermittent energy sources such as wind and sun, and increase the efficiency and stability of power grids–all while fulfilling an oil-addicted America’s quest for energy security.

The breakthrough could also pose a threat to next-generation lithium-ion makers such as Watertown, MA-based A123Systems, which is working on a plug-in hybrid storage system for General Motors, and Reno, NV-based Altair Nanotechnologies, a supplier to all-electric vehicle maker Phoenix Motorcars.

Much like capacitors, ultracapacitors store energy in an electrical field between two closely spaced conductors, or plates. When voltage is applied, an electric charge builds up on each plate.Ultracapacitors have many advantages over traditional electrochemical batteries as Dell inspiron 1721 battery, Sony pcga bp71, Toshiba pa3420u 1brs. Unlike batteries, “ultracaps” can completely absorb and release a charge at high rates and in a virtually endless cycle with little degradation.

Where they’re weak, however, is with energy storage. Compared with lithium-ion batteries, high-end ultracapacitors on the market today store 25 times less energy per pound.This is why ultracapacitors, with their ability to release quick jolts of electricity and to absorb this energy just as fast, are ideal today as a complement to Dell 1721 battery or fuel cells in electric-drive vehicles. The power burst that ultracaps provide can assist with stop-start acceleration, and the energy is more efficiently recaptured through regenerative braking–an area in which ultracap maker Maxwell Technologies has seen significant results.

Regarding concerns about temperature, leakage, and ceramic brittleness, Weir did not reply to an e-mail asking him how EEStor overcomes such issues.Nonetheless, the company has some solid backing. Its board has attracted Morton Topfer, former vice chairman of Dell and mentor to Michael Dell.The company is also backed by Kleiner Perkins Caufield & Byers, a venture-capital powerhouse that has an impressive track record: it made early and highly successful bets on Google, Amazon.com, and Sun Microsystems, among others. Whether EEStor can translate that success to the energy sector remains to be seen.

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laptop accessories when traveling

November 26th, 2009

If you haven’t accessorized your laptop, you haven’t lived. When on a trip ,you don’t want to miss some import thing or cann’t do thing you like as usually.What a shame!But don’t worry ,here are some of the best ways to do it.With all of this you can go everywhere you like.

Docking station or port replicator

A docking station contains a mixture of ports, slots, drive bays, and security features, and it usually attaches to the notebook from underneath. Docking stations come in a variety of shapes, ranging from the same size as your notebook, which is often referred to as a media slice, to much bigger–some stick out five inches past the back of your notebook. As the name implies, a docking station is where you park your notebook when you get back to the office, giving you easy access to your network, along with a bigger monitor, a regular keyboard, additional storage devices, and the convenience of leaving cables plugged in when you walk away from your desk.

A port replicator,on the other hand, is a smaller, stripped-down version of a docking station that mainly features–as you might guess–ports, such as USB or S-Video. A port replicator can range from the size of a box of toothpaste to just shy of docking-station stature. When you’re on the road, a port replicator is a convenient way to increase your connectivity.

Extra battery

http://www.battery4.us/images/battery/dell-inspiron-1520.jpg

If you do even a modest amount of traveling, we recommend getting the largest battery available for your model–or, if you’re wary of the extra bulk that a larger battery entails, get a second battery as Dell inspiron 1721 battery C1295 KD476 XPS M1530 Battery PowerBook G4 Battery etc.. They range from $50 to $300, and they are well worth the money if you plan to regularly spend more than two to three hours away from a wall outlet. Next time you’re trapped on the tarmac working away on your laptop and your primary battery is about to die, you’ll be glad to have that second cell. If you rarely travel with your notebook, however, and your laptop is pretty much always plugged in, don’t bother with a second battery.It sometimes helps to have an extra battery.

External drives

External drives–storage and media-burning options that hook up to your notebook via cable–can be a pain to carry around and hook up, plus they can be pricey. After you had got a extra Dell 1721 battery,you can see your favorite movies or play games at your pleasure .You’re generally better off buying a notebook that has everything you need out of the box. Nevertheless,external drives are sometimes required. If, for instance, you buy an ultraportable that lacks a built-in CD-ROM drive, you might want an external drive for loading software or reading data discs. Types of external drives include DVD/CD-RW, DVD-rewritable, hard drives, and more. No matter what notebook you buy, we strongly urge you to invest in a thumbdrive that plugs directly into your USB connector sans cable. Priced as low as $15 for 1GB of storage, these little drives are brilliant for transferring small amounts of data between notebooks or between notebooks and PCs, and they’re much more convenient than burning data onto CD.

Laptop bag

With a docking station or a port replicator,extra battery (like evo n610c battery evo n600c battery Apple a1057 Dell inspiron 1721 battery)and drives,of course,you needs a large or larger bag.You’re about to drop a couple grand or more on a laptop, and the last thing you want to do is spend even more money on a carrying case. So, you save a few bucks by going with the manufacturer’s basic case. But basic bags often lack a padded shoulder strap or internal pockets. You’ll be kicking yourself soon when your nine-pound load is cutting a groove into your shoulder and all of your accessories come tumbling out of your bag in a tangled mess. Dig into your wallet for a sturdy, comfortable carrying case, and your shoulder will thank you. Look for padded shoulder straps, reinforced corners, and specialized compartments designed to hold the AC adapter, the extra batteries, and so on.

So get a blink at you bag ,does it contain all of these? If not,quickly fitted.Then have a nice trip!

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Shenzhen Government will vigorously support the semiconductor lighting industry

November 25th, 2009

Shenzhen Government will vigorously support the semiconductor lighting industry

Shenzhen municipal government departments concerned are developing semiconductor lighting industry, and the f4809a battery will be supported and encouragement policies, recently proposed investment 4 billion in Shenzhen Guangming Hi-Tech building an area of the region of 20 million square meters of business accelerator for small and medium enterprises to provide standardization of semiconductor lighting plant and office facilities, and municipal science and technology R & D funding will be arranged every year at least 20 million of funding support for semiconductor lighting business development with our best pavilion zd8000 battery.

Statistics show that Shenzhen Semiconductor Lighting Industry is developing rapidly in recent years, as at end of last year, Shenzhen has more than 700 semiconductor lighting related businesses, covering from the substrate to the wafer, chip, packaging and other sectors, and initially formed a complete industrial chain and the great hp battery, output accounted for half of the national industry, exports, compared with about two-thirds of the country’s total exports.

China tin production growth will continue to be restricted

November 25th, 2009

China tin production growth will continue to be restricted

Global demand e-tin solder or about 50% of the downstream demand. July 1, 2006, the European Union on electronic products such as laptop battery which lead-free directives implemented, a lot of electronic material manufacturer in order to meet this request, began to shift a large number of lead-free solder production. E-Lead-free solder made in the global promotion of accelerated growth in tin consumption.

China is the world’s largest consumer of tin, accounting for the global tin consumption, nearly 32%. E-tin solder downstream demand in China accounted for nearly 67%. 2001-06 years, China’s electronic information industry sales to reach 31% average annual growth rate, so the electronic information industry greatly stimulated the rapid growth of China’s tin demand growth. Looking ahead, the Bank of China is expected between 2006-09 sales of China’s electronic information industry will not fall below 15% average annual growth rate.

Meanwhile, in order to adapt to the EU’s lead-free directive, many Chinese manufacturers have shifted production pavilion zv5000 battery of the production of solder lead-free solder. In addition, the March 1, 2007 China’s “Electronic Information Products Pollution Control Regulations” implementation, although not to enforce lead-free production, but in the product on the need to explicitly contain toxic and hazardous substances or elements, we believe that this solder-free Lead production will play a further role in promoting.

Therefore, we believe that China’s electronics solder for tin demand in 2006-09 can be maintained between 15-20% annual growth, and lead China’s tin consumption, more than 10% annual growth.

Continue to supply the next two years due to supply growth is limited, while demand increased steadily, we expect the global tin market in the years between 2007 and 2008, tensions will continue in 2007, tin by a gap of 4,500 tons in 2006 to expand to 2.8 million tons in 2008 There are still nearly 22,000 tons of the shortfall until 2009 before turning a balance. We therefore predict the future 2-3 years, rising tin prices will remain the situation.

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Dell Mini 9:One in thousands

November 24th, 2009

Dell Mini 9:One in thousands

Still worry about that you could not immediately answer the customer’s key messages on a business trip? Still shame that you could not share your trip feeling with friends on the first time? Still bother that you could not watch your favorite ball games or teleplay?Still … Now, all these problems are solved by the emergence of the Internet in DELL Mini 9. It seems to suddenly become the focus of the streets young people to discuss topics, with a sleek netbook nowadays has becoming the most “IN” digital equipment.

With the popularity of 3G networks, netbook to tidal people’s pursuit of quality of life and enjoying a happy life every day , is absolutely essential fashion choice, not to mention now, people will have the opportunity to wave free access to a Dell Mini 9 battery and a DELL insprion 1721 battery .

Dell Inspiron Mini 9 is Dell with China Mobile G3-depth customized embedded wireless module products. It is fashionable to young people and provides free independent travelers with the sexual control of the mobile lifestyle. Whenever and wherever there is mobile phone network, you can use Mini 10 to communicate with friends in online chat, write blogs, watch videos or share the exciting journey in pictures. Mini 10’s the little figure, full of charming style and fashion elements of design, will be your partner to carry the network.

Are you fascinated by it? Do you have one or some ones ,but there is something wrong with its or their battery ? Purchase Inspiron mini 9 (all 8.9 series) battery replacement here, extend your internet business and journey. Our Inspiron mini 9 (all 8.9 series) Dell laptop battey is a safty and fresh battery (direct shipped from our factory). The battery Inspiron mini 9 (all 8.9 series) is compatible with Dell notebooks including the and replace the Dell battery code : 312-0831, d044h, w953g. All our Inspiron mini 9 (all 8.9 series) laptop battery are 12 month quality warraty.

Dell Inspiron Mini 9 Battery Description:

  • Tech Specs : Li-ion, 64WH, 14.8V. 400-600 recharge Cycles.
  • Product Type : Brand new, Replacement Battery, 100% compatible with the OEM Dell Inspiron mini 9 (all 8.9 series) battery.
  • The laptop battery Inspiron mini 9 (all 8.9 series) also work with the follwing model: dell Inspiron mini 9 (all 8.9 series)
  • The Dell Inspiron mini 9 (all 8.9 series) laptop battery features: long battery life and maximum power, quick-charging!
  • Quality Warraty : Our Inspiron mini 9 (all 8.9 series) Dell battery use high quality new cells, such as panasonic,LG,sanyo,samsung.
  • To guarantee our battery quality and fresh, our factory produce and ship the Inspiron mini 9 (all 8.9 series) battery for you.

eplace Battery Code :
Dell 312-0831, Dell D044H, Dell W953G

Fits Model :
Dell Inspiron 910 (All 8.9 Series) battery , Dell Inspiron Mini 9 (All 8.9 Series) battery , Dell Inspiron Mini 9n (All 8.9 Series) battery

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What type of storage and drives do I need?

November 24th, 2009

What type of storage and drives do I need?

Even though cloud computing and online storage can help eliminate some of the need for physical drive space, it’s always nice to have a large hard drive in your Apple laptop. On the other hand, while optical drives used to be commonplace, they’re quickly becoming optional in laptops with displays that are 13 inches or smaller.

Traditional HDDs provide basic, inexpensive space to save programs and files indefinitely–or at least for the life of the drive. This type of “spinning platter” hard drive, which is the standard for both desktop and laptop PCs, has grown steadily in capacity, and now laptops can be found with drives up to 500GB in size. Be warned that capacity alone does not make a good hard drive. The hard disk’s rotational speed also makes a big difference; a 7,200rpm notebook disk delivers significantly faster performance than a 5,400rpm model, though a faster drive may also shorten your Dell inspiron 1721 battery life.

Hard drives: HDD and SSD

SSD drives, or solid-state drives, have no moving parts, and, unlike traditional hard disks, are less likely to be physically damaged by movement, and generate little to no heat. They are similar to the SD cards found in Digital Camera battery and other devices, or the internal memory in the iPhone, PSP Go, and other portable devices. Keep in mind that SSD drives are more expensive and usually offer smaller capacities than HDD storage. In terms of performance, they offer hypothetical advantages, but in real-world terms, the results are a mixed bag. When getting a hard drive, it’s always good to get more than you might think you need.

Optical drives: DVD and Blu-ray

While nearly every laptop used to have a CD/DVD-burning drive not so long ago, today many Netbooks and thin-and-lights don’t include an optical drive at all. They’re still useful for installing software from a disc, burning backups of media, and importing music CDs, as well as for playing DVDs, of course, but with downloadable media growing in popularity, optical drives aren’t quite as appealing as they once were. Blu-ray drives, which can play back high-def Blu-ray movies, are being incorporated into higher-end multimedia notebooks, but make sure the laptop has a 1080p resolution screen (1,900×1,080)and bp2v capable of playing back Blu-ray content at full quality.

External drive

External drives–storage and media-burning options that hook up to your notebook via USB, FireWire, or eSATA cables–come in many shapes and sizes, and can be traditional platter hard drives, SSD storage drives, or even outboard optical drives. Also note that USB-connected flash-memory thumb drives are becoming so cheap and compact that buying one or two for backup and extra storage space is nearly an impulse decision. Having a thumb drive on your keychain is a great way to transfer data to and your PC.

Actual battery run-time depends upon the power demands made by the equipment. In the case of notebook computers, the use of the monitor, the hard drive and other peripherals results in an additional drain upon Dell 1721 battery, effectively reducing the battery’s run-time. The total run-time of the battery is also heavily dependent upon the design of the equipment. To ensure maximum performance of the battery, optimize your computer’s power management features. Refer to your computer manual for further instructions.

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How to calibrate the ’smart’ lenovo battery

November 24th, 2009

With use and time, a tracking error occurs between the chemical battery and the digital sensing circuit. This results in a loss of accuracy of the SoC readout.

The most ideal use of the ’smart’ thinkpad x61 tablet battery, as far as fuel-gauge accuracy is concerned, is a full charge followed by a full discharge at a constant current. In such a case, the tracking error would be less than 1% per cycle. In real life, however, a battery may be discharged for only a few minutes and the load may vary widely. Long storage also contributes to errors because the circuit cannot accurately compensate for self-discharge. Eventually, the true capacity of the battery no longer synchronizes with the fuel gauge and a full charge and discharge is needed to ‘re-learn’ or calibrate the battery.

What happens if the lenovo thinkpad x61 tablet battery is not calibrated regularly? Can such a battery be used in confidence? Most ’smart’ battery chargers obey the dictates of the chemical cells rather than the electronic circuit. In this case, the battery will fully charge regardless of the fuel gauge setting and function normally, but the digital readout will become inaccurate. If not corrected, the fuel gauge simply becomes a nuisance.

If no full discharge occurs for a few months as part of normal operation, a deliberate full discharge is needed. This can be done on the equipment itself, on a charger with discharge function or with a thinkpad x60 tablet battery analyzer. Cadex manufactures SMBus chargers and battery analyzers, both of which can be used to test and calibrate the battery. The Cadex SM2+ (Figure 4) is a level-3 SMBus charger featuring a target capacity selector that is adjustable to 60%, 70% or 80%. The target capacity selector checks performance and flags batteries that do not meet the set requirements.lenovo 40Y6795 ,40Y6797,40Y6799.

If a battery falls below target, the charger triggers the condition light. The user is prompted to press the condition button to calibrate and condition the battery by applying a charge/discharge/charge cycle. The green ‘ready’ light illuminates if the capacity is met at full charge. If the battery does not recover, a fail light recommends replacement. The SM2+ charger accommodates batteries with the 5-prong knife connector by AMP. The charger services both SMBus and non-SMBus batteries. “Dumb’ batteries do not provide state-of-health indications.

Dell Inspiron 14z Review

November 22nd, 2009

Dell Inspiron 14z Review

 

During the year of 2009,Dell spent making their laptops as thin and light as possible. Dell even went as far as adding a “z” to the names of the thinnest and lightest notebooks that offer the best battery life as Dell inspiron 1721 battery in each category. To that end, the Inspiron 14z offers consumers a laptop that promises “66% better battery life” for a modest price increase. Is the Inspiron 14z as impressive as it sounds? Keep reading to find out.

The design of the Inspiron 14z looks virtually identical to the Inspiron 14. The chief differences here are that the Inspiron 14z uses an Intel CULV processor, 6-cell battery and WLED display … all of which are intended to extend battery life. At first glance, the Inspiron 14z looks like an average budget notebook with a 14-inch display. The plastic construction, average screen resolution, and lack of a backlit keyboard certainly don’t give this laptop the same premium look and feel as the Dell 1691P .

The Inspiron 14z feels pretty durable despite the fact that the notebook chassis is constructed from relatively thin plastics. The only areas that suffered from flex were just above the keyboard next to Dell 1721 battery and the back of the display lid. If you press on the lid with your fingers you will create screen distortions, and you’ll hear some minor plastic creaking if you press down next to the battery. There is some minimal flex on the top of the right palmrest next to the optical drive, but you have to press pretty hard to make that happen.

When closed the Inspiron 14z looks thin compared to budget laptops from several years ago, but the weight of the 6-cell battery makes this system a bit too heavy to quality for the “thin and light” category today. The “Cherry Red” screen lid gives the Inspiron a nice candy-covered look, but Dell charges a $40 premium for the privilege of selecting red instead of black. Usually I don’t complain about that type of surcharge from the Dell Design Studio which offers your choice of more than 100 different designs by various artisits, but charging $40 to stick a chuck of red plastic on a notebook is a little excessive.

The bottom of the notebook features the PC764 and access plates for the hard drive and RAM. There isn’t much to talk about here other than to briefly mention the location of the two speakers on the bottom of the front edge (more on that later).

The port selection on the Inspiron 14z is retty average for a budget 14-inch notebook with one or two exceptions. Dell included three USB ports, VGA and HDMI video out ports, Ethernet,C1295 and a multi-format memory card reader. Unlike the Studio 14z, which sacrifices an optical drive for the sake of portability, the Inspiron 14z includes a standard 8x CD/DVD burner with dual-layer support. The Inspiron 14z lacks an ExpressCard slot, FireWire, and eSATA, so if those ports are important to you then you’ll need to look elsewhere.

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Toshiba Battery Pack Identification

November 22nd, 2009

Toshiba Battery Pack Identification

If you have one or more Toshiba notebook computers, make sure that there is the possibility of the affected battery pack is being installed in your computer. So far the most convenient and most accurate way to verify is to use the Toshiba’s battery testing utility. Dell 1721 battery testing utility will recognize the possibility of being subjected to influence whether the battery is installed in a Toshiba notebook computer units. Once recognized the possibility of the affected battery packs on your computer, follow the program prompts the information involved in the new initiative of the battery replacement program.
Toshiba PA2420UR test to use the program is only about 200KB, so you can in a very short period of time download.
After downloading, according to the following steps:
1. Please use your Windows-Administrator (Administrator) logged on.
2. TOOL4CHNCS4.zip will unzip the downloaded program to a certain (for example: My Document) folder.
3. To enter to the folder My Document \ TOOL4CHNCS4, double-click BatteryCheck4.exe implementation of the testing utility.
4. BatteryCheck4.exe after the start of the implementation in accordance with the screen prompts.

If you do not want to download and use the battery-testing program, you can choose according to “manual to determine the battery pack’s Guide”of the related presentations to determine whether you have got the affected evo n610c packs at the same time get the battery pack model and serial number. This manual method requires you to remove the battery from the computer and in accordance with “battery manual to determine Guide” on the information provided by the battery pack through the visual comparison on the label corresponds to the information to carry out.Please note that this method may result in inaccurate results. May, based on visual than to identify Dell inspiron 1721 battery pack should be replaced, but the battery-testing process it was concluded that the replacement battery packs do not have to.

If the identification of these two identification methods differ from the conclusions, the battery test procedure results (not the visual comparison of the result) is correct. The use of Toshiba pa3420u 1brs to carry out relevant testing procedures to determine the priority is also the way we recommend.

How to apply for the replacement battery pack

Toshiba offer free replacement for the affected battery pack. You can call the registration hotline at Toshiba’s computer-related information in order to obtain free replacement battery pack. Specific information is as follows :800-820-2048 (fixed) or 116-986-2048,021-52564713 (mobile), connected and click “4.” Toshiba computer hotline hours are Monday to Sunday (8:30-17:30) (statutory holidays).
If you are inconvenient phone calls, you can also provide the information and send it by fax to 021-63353870.

 

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