How to Stay Auto Moistureproof
Posted by admin in Uncategorized on January 16, 2012
1, sealed leak-proof rain: available water leak of some special adhesive bonding
Car leaking is a common phenomenon. Leaks usually appear in the door, the luggage compartment at the switch, the reason this happens is that most of the water, which is the colored plastic water of the poor, old age or become broken, immersed in water will be from there. Use of special waterproof adhesive bonding again, you can completely prevent leakage. In addition, rain hp compaq 6910p charger, wet umbrellas from dripping drops of water will wet floor mats, if not to its dry, easy to mold. If mildew inside, it is difficult to get rid of musty, sometimes causing respiratory diseases. Note that when the umbrella into the water to get rid of the car, into a plastic bag, wet the floor mats should be dried as soon as possible.
2, sterilization cleaning: 84, etc. with their own disinfectant scrub interior
Rain more likely to breed a variety of bacteria, so disinfection is particularly important outside the sterilization. Focus areas should be clean seats, air conditioning vent, in the control panel and around the corner. You can use a professional car interior cleaner, wipe with a dry cloth. Clean center console when cleaning to prevent infiltration of CD, speakers, radios and other electrical equipment, in order to avoid corrosion of electrical components. They can even buy some disinfectant, such as 84 disinfectant, and wipe the car were sprayed to remove bacteria. Use of these chemical disinfectant to wipe the car interior, especially the door handles and other frequently touched parts, up to a certain degree of disinfection. The best way pavilion nx9100 is to professional maintenance shop from time to time to do a thorough cleaning of the interior.
3, the interior mold: clean leather seats available Lanolin
Continuous rainy weather to increase the air humidity. Car seat cover cloth interior and is very easy to absorb moisture under the sponge, such as leather seat covers under the sponge to absorb moisture more easily than woven fabrics, leather wrapped and there, more difficult to evaporate moisture absorption. Until the weather gets warmer, the seat you want to run out of moisture, the more difficult, over time, leather seats, it is easy to mold, and produce a foul odor.
In fact, leather moldy sort of thing is avoided, the most effective method is to mold leather leather seats for a professional cleaning care, as long as seats will be cleaned evenly on the quality of the oil to pass the sheep . Sheep mild moisturizing oil, you can soften the leather, making it easy to crack, and Lanolin oil will form a protective film to leather chairs, to a certain extent prevents mold generation. Occur due to moisture inside the musty, in addition to open the door in the shade, so that the full distribution of water vapor inside the car, remove the moisture and odor inside the car, but also the need for car interior clean-up, attention should be put on a new or drying After the carpet and seat covers. If mildew stains Mildew dell studio 1747 charger has emerged, it difficult to get rid of due professional maintenance shops do go round cleaning.
4, air conditioning smell: every 20,000 km replacement air filters
Regardless of whether it is the rainy season clean air are essential to everyday car maintenance, and clean air of the most effective step is to replace the air filter. General air conditioning filter located near the inlet, the owner of a little mechanical knowledge can remove yourself replacement. In general, vehicles 15,000 km to 20,000 km between the air filter to be replaced. If long-term use in automotive air conditioning cycle work, and air conditioning filters are not particularly dirty, you can use high-pressure air gun blowing, re-use for some time. After replacing the filter, if there is air conditioning odor, then choose to act decisively on the air-conditioning duct, evaporator thorough cleansing, disinfection of.
Air conditioning cleaning seem difficult, but in reality quite simple. First select a can of air cleaning agent (such as cleaning agents in the car is very easy to buy beauty shop). Cleaning agents or foam spray is usually type, owners evo n100 can wash their hands. Step generally is this: before disinfection, the first car of the food, paper towels out, to avoid the odor adsorption. Start the car, find and remove the air intake filter. Pad in a towel to prevent the outlet air cleaning fluid outflow. Then open the windows, air-conditioning refrigeration and air volume to maximum, and modulation outside the circle, and then began to automobile suction inlet air into the position of the strongest cleaning agent. After all the cleaning agent into the close air, rest for 10 minutes. After 10 minutes, re-open air and the air volume to maximum, for 10 minutes, then people will find the vehicle slowly out of dirty water, but in fact this is the air pollution inside the liquid discharged from the drain outside the car .
5, the sound wave to avoid: moisture can often open audio
As the summer the air is humid, it is likely to cause hp dv2000 charger fogging on the CD, the CD drive if wet directly into the host will not keep pace with the laser read head, and damp electrical components, laser head can also cause serious damage. Humidity and high temperature electronic components and the laser head is the main culprit of aging. In addition, in the car after sun exposure should not be immediately after the volume of the sound, because the electronic system of working conditions will change with temperature, and immediately turn up the volume will not only damage the speakers and other electrical appliances, but also affect the use of host life. Recommended in the usual driving, the day will work 1-2 hours audio system, which can be moisture-proof effect vaio vgn-sz680. Can also be cleaned the disc, so as not to fog the surface into the drive. Also note that on the video head cleaning, but need to be a professional repair and maintenance shop disassembly.
How Does Your Browser Works
Posted by admin in Uncategorized on January 9, 2012
First, when a user in the browser’s address bar type in the web site (for example: alibaba.com), then the browser will first locate through access to the domain name to IP (DNS) in order to find where to access resources, then toshiba pa3399u-1bas li-ion battery, the browser will find the following in turn:
1 browser cache: the browser will first look in its cache there is no corresponding domain name – IP matching, if good luck, here you can directly try to access resources, and if luck is down go flat.
(2) system cache: do not hit the browser’s cache, the browser will tell the operating system: “Hey, I could not find my own pocket, may be lost, I have to go there to see you”, then, a system process ( ?) the nikon d90 battery power transfer of the system to query the DNS cache, repeat one of the lucky judge …
3 routers cache
4. ISP DNS cache: to the ISP (Internet provider) to find the DNS cache server, and under normal circumstances, the ISP side cache can be found in the corresponding cache record, and should not be so back up
5 recursive search … the most frustrating happens, there is no way in front of the DNS cache hit case, ISP’s DNS server starts from the root domain name server to start recursion, the order is from. Com top level domain name server to alibaba server replacement battery for travelmate 800, and nothing found … Well, you think your site is really going to open there is what …?
Want to emphasize is, not just the first name of the site visit to do the work of such a query, in the page reference resources as domain name resolution when there is such a series of work. The most obvious is to enable the new domain name do static resource storage services, it is basically the 1 – 5 steps had to go a few times. in order for the new domain in the DNS cache server to leave a record.
First. DNS-related optimization:
General practice: DNS resolution complexity of the improper use of multi-domain access to resources will result in unnecessary performance overhead in the WPO, a lot of optimization work is very artistic battery ibm thinkpad r60 9455, both in the DNS and HTTP optimization, you can see The magic of art:
DNS optimization, of course, as little as possible the overhead caused by DNS queries, HTTP optimization in the optimization strategy, there is a single domain name to avoid deficiencies under the number of connections for multi-channel resources to download, details of implementation will be <HTTP optimization principles and methods> in detail, here is a simple way, the static resources more Domain Name Service can bypass the browser to load a single domain name resource limit on the number of concurrent connections, DNS optimization we need as little as possible of the domain name resolution, HTTP when we need to optimize the use of appropriate multi-domain services, then how to make two good optimization li-ion panasonic cga-s007 battery practices are able to implement it? [todo]
Graceful degradation: in some modern browsers (Google Chrome, Firefox 3.5 +), it had to support the DNS pre-fetching, and how a pre-fetch it? Is loaded in the browser page, the Web page <link> or <a> the href attribute of the domain name for the background of pre-analytical (above 1 – step 5), and the analytical results will be cached in the browser when the user click on the link in real time, eliminating the need for DNS resolution in the present consumption, this consumption has shifted to the user’s browser can not perceive the process to go.
First, modern browsers have support and on by default, DNS Prefetch feature of course you can also configure the browser to manage this function:
With Firefox3.5 + can be: the default browser will open the HTTP protocol under the DNS prefetching, turned off by default HTTPS protocol under the DNS prefetching, through about: config in network.dns.disablePrefetch and network.dns. disablePrefetchFromHTTPS <two options to control the two protocols under the prefetching.
Second, you can use meta information to inform the browser compaq presario m2000 replacement battery, I need to do this DNS prefetching page
Third, you can use the link tag to force the DNS pre-fetching to do
Core Solo Computer CPU Review
Posted by admin in Uncategorized on December 28, 2011
Compared Solo T1300, T1400, the U-series single-core can be mixed in the market is the fast, and its greatest is its more than relying on ultra low voltage Core Duo processor even better power control, maximum power consumption of only 5.5W. U series UMPC in many single-core processor appears above, in particular, Fujitsu, many of its ultra-portable models are based on this series processors can be said to fame. However, it should be grateful to Intel’s designers to its design is so good.
Core 2 Duo processor with a Merom core, is the largest on the market, we can say is the most chaotic models, the biggest change is that all 64-bit support. Including ordinary T5 series, T7 series and low-voltage acer travelmate 800 battery version of the L series, and ultra low voltage U-series. The earliest Core 2 Duo processor, listing a total of T5500, T5600, T7200, T7400, T7600 five. Also reached the lowest frequency 1.66GHz, and even reached the highest T7600 2.33GHz. Core 2 Duo processor, once again leading the emergence of the laptop into a new era, powerful performance brought a high price, Intel was also seen to this point, has introduced a simplified version, the market reaction is also quite good.
Core 2 Duo processor is also simplified version came out a lot can be said that in order to reduce the production cost notebook. But this one is always confusing for consumers. From the T5200 to the T5750, there has been a total of eight simplified. This is a total of T5200, T5250, T5300, T5270, T5450, T5470, T5550, T5750 eight, even more crazy is involved Centrino 3, 4 two Centrino platform, the front-side bus is the emergence of 533,667,800 three kinds of . Greatest common denominator is not support Intel Virtualization Technology, this external laptop battery recently emerged T5850 processor. The level of the processor in a notebook appears more likely very large, but still keep in mind that the frequency difference is not the case, the wider the performance of the bus more.
Core 2 Duo also introduced a low-voltage dual-core processor, a total of 4 models, but it involves two platforms, compared to the Core Duo low-voltage version is more robust performance, even the highest type frequency reached 1.6GHz, But still the power control in 15W. The four models of the L7200, L7300, L7400, L7500, L7200 and L7400 which platform is Centrino 3, while the L7300 and L7500 are the latest Centrino platform. FSB is 667 and 800, respectively, is used in all large-capacity cache 4M. This series of processors also appear only in the portable compaq presario m2000 series battery notebook, of course, using this processor is also more expensive notebook. We have to ask when buying a specific model, not to confuse the ordinary version.
Notebook Core 2 Duo processor evolution to the era also appeared in U-series dual-core products. Intel of course will not let their product line incomplete, and this series supports the new enhanced energy saving technology. Core 2 Duo ultra low voltage of the total of U7700, U7600 and U7500 both clock in at 1.33GHz, 1.20GHz and 1.06GHz, the same power as 9W. Core 2 Duo Merom with a new architecture design, performance is much better, support the enhanced SpeedStep energy saving technology to extend notebook battery life. The same main application language on the ultra-portable notebook and UMPC.
Intel recently introduced the use of 800MHz front side bus is the new Core 2 processors, with the highest model T7800, clocked at up to 2.6GHz, of course, performance is very good, and this series has become the most commonly used in high-end laptop models, you can that is to attract the vast majority of consumers. Name is used only on all T7XX0, there are toshiba pa3399u-1bas battery T7100, T7250, T7300, T7500, T7700, T7800 six models. T7100 in the market, performance is quite strong, but it is also an alternative version of the T7250 into the market, frequency of 1.8GHz upgrade from T7100 to 2.0GHz, and its one thousand of the purchase price is the same, more eye-catching performance.
Early release of Intel’s 45nm mobile processor announced a new notebook processor to enter the era, as a new point of mobile processors, T8 and T9 series more robust in terms of performance, but the TDP is still only 35W. The four-processor Intel introduced more special, special special on the secondary cache on the processor, there has been a strange 3M and 6M cache, instead of the usual 2 orders of magnitude, and indeed a bit strange, but the actual performance is very strong, and this point has been repeated evaluation findings. Better sony np-fh30 battery performance is caused by the high price, if your budget is sufficient, of course, consider using these processors notebook. However, as a transitional product, I believe so in the second half launched a new platform will give us more to look forward to the product.
Most people may have seen the top of the notebook processor is the T7800, but Intel’s top Core 2 Extreme does processor. The biggest difference with the ordinary version of the processor, its multiplier is not locked. Extreme Edition processors have a total of 3 models: X7900 and X7800 and the recent launch of the X9000. Clocked at 2.8GHz and 2.6GHz, 2.8GHz. This Extreme Edition processor performance is certainly very good, but the price is high above, and only such as Lenovo, Dell, and a handful of vendors have introduced products using this notebook processor, but does also reflected in another Intel technology strength. Mid-market, there are many uses T2250, T2350, T2450 processor, all three processors are Core Duo processor, not Core 2 Duo, is the Core Duo, but also support the Centrino platform, and T5XXX series of difference is three of them do not support 64-bit computing panasonic cga-s007 battery. All three processors are the T2250 clocked at 1.73GHz, T2350 clocked at 1.86GHz, T2450 clocked at 2.0GHz. They support the Centrino platform, but it is Centrino 3 generations, the performance is still very good. Pursuit of cost-effective choice for consumers.
Tablet PC can Expand Education Market
Posted by admin in Uncategorized on December 12, 2011
Today, the public began to target the education market flat panel manufacturers. Apple plans to introduce the education market its products, Google Chromebook laptop has officially opened for business and education markets for sale. In addition, Huawei, Dell and so launched the field of education specifically for the Tablet PC. According to research done PiperJaffray, Apple’s iPad market share in the education market is almost overwhelming. PiperJaffray analyst GeneMunster visited the United States School District 25 director of technology, they are already testing or sony CCD-TRV101 battery using iPad. In the next five years, these executives will also allow students to use more than the general proportion of flat-panel computer. The current use of these areas the proportion is 10 students per computer, but is expected to become the next five years, six students each iPad.
In addition, Huawei, Dell also launched the field of education specifically for the Tablet PC. The end of October this year, Dell is also in Beijing, China released its first commercial use of Windows7 operating system Tablet PC LatitudeST, the product will be mainly used in education, health care industry, the future will expand the financial, manufacturing and other industries, powered by Microsoft Windows7 operating system , using the Intel Atom processor, 2G memory configuration, and support for stylus, external keyboard, the standby time of 8 hours.
Today, many schools in the Tablet PC into the classroom, lead the industry hot. Optimistic and those who look bad today. This summer, a university professor of Shanghai due to the micro-Bo does not require students to attend samsung SLB-10A charger classes while on the other iPad widely criticized, the professor’s class was friends known as “luxury class” Professor, I have been labeled “iPAD professor” title . Technology development should be allowed to benefit from education, PAD can replace the traditional bags. PAD can store a small flood of books, children’s bags smaller thus lighter. From the price, PAD is not too “extravagant.”
Moreover, PAD is not only applied to primary and secondary schools, “intelligent tutoring system with PAD have become students of all levels of the potential of virtual e-learning partners. PAD not only textbooks supporting acer travelmate 800 battery materials can be installed with multimedia e-books for students learning to read You can also take the initiative to the students of the subject, change jobs, make recommendations to learn Education is to promote the educational development of information technology or stifle creativity, it is worth considering. In fact, the information technology to promote educational reform, are also at home and abroad in recent years try.
At the same time, some industry experts and scholars, including PAD mode, including information technology in education and teaching in the application may exacerbate the “digital divide”, resulting in new education is not fair, also expressed concern. For example, the Norwegian Ministry of Education and Research Professor of Aosi Deng, digital is a problem. If you want the system hp compaq business notebook nx6310 battery to innovate, to use technology, it is necessary to ensure that everyone can use to get these technologies. If you want innovative digital technology, we must be very carefully planned, taking into account various factors.
In addition, the University of London Professor Tim also made “to rethink the value of the University, the University can not be lost in the technology” point of view. “We are losing our fundamental, precisely because of the intrusion of technology, many people advocate the use of ICT in the university were, so we put the most basic values of the University have forgotten the university apple a1189 battery what is the value? Have innovative , creative, providing knowledge, empower people, but now the only higher education has become a place for the sale and trading information. “Professor Tim conducted a survey among students,” In fact, it is only for students with Download the knowledge of the way, they just get the information, and then some chewing, or even plagiarism. ”
In modern societies, technology and e-learning is only a medium, in the use of them, we must consider the content of teaching, especially teaching content to consider what the our future generations will have far-reaching impact, while people casio np-20 charger can not be ignored exchange and sharing between the University of value in playing the role. Nevertheless, the number of education into the trend, which also brought to the flat panel market segment potential. IPad is still sweeping the market in the pattern, this gives new opportunities for manufacturers of latecomers.
High and New Technology Improve Battery Capacity
Posted by admin in Uncategorized on December 12, 2011
Mobile phone battery charged more than a week, 15 minutes per charge. Northwestern University researchers gave us away from this dream one step further. According to the American physicist hp pavilion zd7000 battery organizational networks reported on November 15, the school’s engineers developed an electrode for lithium-ion battery, allowing the battery to maintain 10 times higher than the existing technology of electricity, but will also make the battery with a new electrode charge rate increased by 10 times. Research report published recently in the “Advanced Energy Materials” magazine.
Storage capacity and charging rate are two major hp probook 6440b battery limitations of the battery. Storage capacity is limited by the charge density, that is, the battery terminals can accommodate the number of lithium ions. Charge rate is limited by the negative lithium ions from the electrolyte to reach the speed. Existing lithium anode made of carbon-based layers of graphene sheets stacked together, a lithium atom can only fit six carbon atoms. In order to increase storage capacity, scientists have tried to use silicon instead of carbon, silicon can be adapted to allow more lithium to achieve the four lithium atoms corresponding to a silicon atom. However, the silicon in the process of charging significantly expand and shrink, causing the charge capacity of the hp probook 4411s battery fast break and lost. The shape of the graphene film battery charging rate will be constrained, although they have only one carbon atom thick, but very long. Since moving to the graphene sheets of lithium middle takes a long time, ion “traffic jam” in the case of graphene edges have occurred.
Now, the research team combined two techniques to solve the above problems. First, to stabilize the silicon in order to maintain maximum charge capacity, they are inserted between the graphene sheets of silicon clusters, the use of the sony vgp-bps9/s battery flexibility of graphene sheets with battery changes in the number of silicon atoms, making a large number of lithium atoms stored in the electrode. Silicon clusters can add a higher energy density, but also can reduce the expansion due to silicon and reduce losses caused by the charge capacity, best of both worlds.
The team also used chemical oxidation processes in graphene sheets to create a 10 nm to 20 nm pores, called “surface defects”, so this shortcut along the lithium ion will reach the anode and react with silicon, is stored in the negative . This will shorten the battery’s charge time to 10 times. Harold H papers lead author, said the new technology allows lithium-ion rechargeable battery 10 times longer life, even after 150 charge, the battery energy efficiency of existing lithium-ion battery is still five times. This technology is expected in the next sony vgp-bps13 battery three to five years to enter the market.
Graphene came less than a decade, not only to help two of its inventors won the Nobel Prize, and rapid access to a variety of applications, such as battery electrodes. The success of American Scientists try new techniques, has greatly improved the performance of graphene to help lithium-ion battery that has long been a key component used in everyday appliances, breaking the long-lingering bottlenecks in energy density. This indicates that even the new generation of energy storage system – charging time shorter times, storage increased tenfold, to lithium batteries to power the universal laptop AC adapter ideal and perfect step. If a similar principle of a new battery installed in the car as soon as possible, the largest electric vehicle to market the crux or will be resolved.
Importance of VRLA Battery Daily Inspection
Posted by admin in Uncategorized on December 5, 2011
Although VRLA batteries have many advantages, but also with all the same reliability and battery life issues. Reported in the literature VRLA battery life of 15 years (25 ℃ float use). VRLA batteries at home and abroad, but the actual in use, have emerged ahead of the phenomenon of failure, resulting in the failure modes of VRLA batteries have increased grid corrosion and electrolyte dry, negative sulfate, premature capacity loss (PCL), thermal runaway, etc., about each of the following:
1. Dehydration
VRLA batteries from discharge of hydrogen, canon bp-2L12 charger oxygen, water vapor, mist, water loss is the way the battery and dry reason. Dry battery failure caused by this factor is the valve-regulated lead-acid battery specific. Dehydration of the reasons are the following:
① gas recombination efficiency is low;
② water seeping from the battery case;
③ grid corrosion of water consumption;
④ self-discharge loss of water;
⑤ valve failure or frequent open.
2, Premature Capacity Loss
Early loss of acer aspire as1410 battery capacity VLRA (PCL) is the battery capacity of the early cycle, with every charge and discharge cycles, the capacity decreased significantly, and in severe decline in capacity of more than 5%. Can be found in actual use the battery in a shorter time (well below the design life), battery capacity has dropped to about 80% of rated capacity, the anatomy, the internal battery grid active material, the surface diaphragm integrity, this phenomenon is premature capacity loss.
VLRA batteries are mostly used lead-calcium alloy, so the use of non-antimony alloy grid to do positive, they often cause deep charge-discharge cycle capacity of premature decay, a phenomenon originally known as non-antimony effect, it is due to positive grid and non-conductive layer of active material interface due to the formation, grid / active material interface, this layer is not conductive and low conductive layer results in a high resistance, this layer of the resistive layer during charge and discharge, fever, and to the vicinity of the cathode sony np-fp50 charger grid loss of active material expansion of activity, and thus the positive capacity decreased rapidly.
In the valve-regulated lead-acid batteries used in low-antimony or no antimony grid alloys, the early loss of capacity in the following conditions occur often easier:
① inappropriate cycling conditions, such as continuous high-rate discharge, deep discharge, charging the start of low current density;
② lack of special additives such as Sb, Sn, etc.;
③ low-rate discharge, high utilization of active material, a high degree of excess electrolyte, the plate is too thin, etc.;
④ low density of active material, the assembly of the pressure is too low and so on.
3, thermal runaway
Most of the battery system heat problems exist in the valve-regulated lead-acid batteries is more likely, this is due to oxygen recombination process within the battery to produce more heat, a small amount of exhaust gas, reducing the dell inspiron 1564 battery heat dissipation. If the working environment VRLA battery temperature is too high, or the charging voltage control equipment, the battery’s charge will be increased too fast, the battery internal temperature increases, poor battery cooling, resulting in overheating, battery internal resistance drop, charging current is further increased, the resistance is further reduced. A vicious cycle is repeated until the battery thermal runaway severely deformed shell, split up. To prevent the occurrence of thermal runaway, to adopt the following appropriate measures:
① should have temperature compensation charging equipment or limiting;
② strict quality control valve to the normal discharge of the gas within the battery;
③ To set the battery in a well-ventilated location, and control the battery temperature.
4, grid corrosion and growth
VRLA battery grid corrosion is an important reason for failure, whether in the open state, or state or float charge and discharge status, there is grid corrosion phenomenon. Especially in the over charge and discharge conditions, the cathode because oxygen evolution reaction, water is consumed, the concentration increases, leading to increased acidity near the anode, grid corrosion acceleration, canon bg-e9 battery grip positive grid corrosion at the same time subjected to deformation, so that the linear grid size increases, and even individual ribs broken, and the bus plate top edge of the plate from time to time short. Eventually leading to damage to the battery.
VRLA battery life, depending on the positive plate life, and its design life is based on positive grid alloy corrosion rate calculation. Positive grid corrosion of the more, the less the remaining battery capacity, battery life shorter.
5, negative irreversible sulfation
Under normal conditions, the formation of lead-acid batteries in the discharge of lead sulfate crystals, in charge can be more easily reduced to lead, if the improper use and maintenance of batteries, such as insufficient or too often in charge and discharge, will gradually form a negative thick hard lead sulfate, which is almost insoluble, difficult to use conventional methods of charging it into the active material, thereby reducing the battery capacity, battery life and even become a reason for termination, a phenomenon known as plate irreversible sulfation . In order to prevent irreversible sulfation negative, must charge the battery in a timely manner, not over-discharge.
The most commonly used battery as energy storage devices are widely applied in the sony vgp-bps8 battery following users in the city, stopping for loading or when the AC to DC power to the load:
Power industry: power plants, substation relay protection systems, communications and lighting systems, sale of electricity management, distribution automation of backup power;
Communications industry: mobile and fixed communications base stations, access and data center backup power:
Financial sector: financial services network and data center, trading center of standby power;
Government and public sector: the military, police, security command center and data center backup power;
Public facilities: schools, hospitals, libraries, television, radio, cable television, subway standby power:
Aerospace: ground signal, radar, communications, acer aspire one d250 series battery navigation and other facilities, standby power;
Large-scale processing enterprises: automobile manufacturing, food processing, pharmaceutical manufacturing, beverage production, steel production, coal mine control center, data center and dispatch center backup power;
Various types of data center: Internet and networking data center, large enterprise data centers, financial data center, local and remote data center backup power backup
Knowledge about Computer CPU Structure
Posted by admin in Uncategorized on December 1, 2011
For the notebook processor market, six months, there can be many things happen. As the market leader in mobile processors, Intel notebook processor speed of evolution is also obvious, the emergence of new technologies, many of them, of course, have the vendor’s marketing strategy on the inside. In the past six months, notebook processor market has undergone fundamental changes. Than six months ago, the biggest point is 45nm notebook processors, smaller heat, enhanced performance, so Intel notebook processors in a flourishing; while the other point is that the dell vostro 1000 battery mobile version of the Celeron dual-core processors appear to more consumers can enjoy lower prices to bring the fun of dual-core, compared to Intel’s strong, AMD mobile processors in action in the relatively small, but its latest PUMA processor has been released, expect AMD notebook processors with greater progress.
Frequency: CPU clock speed, the CPU core clock frequency of work (CPU Clock Speed). Commonly referred to as certain how much MHz CPU, and this is how many MHz “CPU’s frequency.” Many people think that the CPU frequency is its speed, it is not. CPU frequency of said digital pulse signal within the CPU speed of shock, and the actual CPU computing power, and not directly related hp probook 4411s battery. Frequency and the actual speed of operation there is a certain relationship, but there is no one formula to determine the quantitative relationship between the two values, because the CPU operation speed depends on various aspects of the CPU pipeline performance indicators (cache, instruction set , CPU bits, etc.). As the frequency does not directly represent computing speed, so in certain circumstances, is likely to occur with higher frequency CPU operation speed lower real phenomenon. So fundamentally speaking, frequency is not the only standard measure of processor performance.
Secondary cache: secondary cache called L2 CACHE, some of it is the processor’s internal buffer memory, and its role with the same memory. It’s more flexible working frequency, the same with the CPU frequency can also be different apple a1189 battery. The CPU reads the data, look for first in the L1, L2 and then from the search, then the memory is external memory in the post. Therefore, the influence of L2 on the system can not be ignored.
Front Side Bus: Bus is the source of information to one or more parts of the purpose of transmission to one or more components of a transmission line. Popular that the public is the connection between multiple components, used to transfer information between the various components. It is often expressed in MHz bus speed to describe the frequency. Many different types of bus, FSB, the English name is Front Side Bus, FSB is usually said, is to connect the CPU to the Northbridge chip bus. The computer’s front side bus frequency of the CPU and Northbridge by a common decision.
Process: We often say that the 45nm, 65nm manufacturing process on the part of the concept. Increasing the chip process technology can improve the integration, to increase the number of transistors, expanding new features. At the same time as transistors shrink in size, and every single transistor unit costs decrease. In addition, higher process technology can help reduce CPU power consumption hp pavilion dv6 battery, in addition, reduce the cost of the CPU before the CPU capacity expansion of new process technology is also a positive impact.
TDP: TDP is the reaction heat release of a target processor. TDP in English stands for “Thermal Design Power”, Chinese literal translation is “thermal design power.” TDP of the processor’s basic physical indicators. Its meaning is when the processor to achieve maximum load when the heat release, the unit of W. Single-processor TDP value is fixed, while the radiator must ensure that the maximum time the processor TDP, the processor temperature is still in the design range.
SpeedStep: Intel used a power saving technology in the 600MHz Mobile Pentium III processor or more, designed a two PLL clock input line, the core can support two different voltage / frequency combinations matching. A is 1.6V core voltage, maximum performance (Maximum Performance) mode (100%); the other is to optimize battery (Battery Optimized) mode, this time the CPU clock is usually only about 80%, of which the core voltage can be reduced to 1.35V. and the two modes of operation of the switching time of only two thousandths of a second of time. toshiba satellite pro 2100-203eb battery to Intel’s data representation: 20% reduction in operating frequency, coupled with the lower core voltage, in theory, power consumption can be reduced to the original operating mode between five to Liu Cheng. with a 600MHz mobile Pentium III, for example, carry out in our notebook computers, usually do not pick up the AC Power AC power, then they can eat notebook battery power. this time the CPU will automatically set the cut to 500MHz/1.35V low / low pressure mode, significantly reducing power consumption, and battery supply time is lengthened. and when the laptop moved to AC Power AC power supply can take place, once connected to the AC Power supply, system will automatically switch back 600MHz/1.6V full speed / high voltage mode.
Intel Virtualization Technology: hp pavilion dv9700z battery CPU virtualization technology can simulate multi-CPU single-CPU parallel, allowing a platform to run multiple operating systems and applications can run independent of each other and affect each other’s space, thus significantly improve the computer work efficiency.
How to Guarantee the Laser Projector Cooling
Posted by admin in Uncategorized on November 22, 2011
Regardless of the design cooling laser projector how perfect, is difficult to ensure high fever caused by prolonged use of the projector, The projector itself will generate a lot of heat, there are many components are sensitive to temperature, therefore, in order to ensure the safe use of projector high temperature thermal protection for all projectors must be considered a design requirement.
LCD projector in the main house through the fan group to the core of the projector and other major sources of heat and power for heat, and in order to ensure the life of the projector, the projector’s internal temperature sensor is installed inside the projector real-time monitoring of temperature changes, and feedback to the processing circuit. battery for thinkpad r60, battery for aspire 9300, Projector work, the role of the cooling fan, the internal thermal equilibrium in a state. This state is associated with the outside temperature when the outside temperature exceeds a certain temperature (mostly 95 ~ 96.8 F), the internal temperature of the important parts will be more than its rating. Important part has its own cooling temperature sensor (such as liquid crystal near the light bulb above the radiator on the power supply), the work in the region once the temperature reaches the critical point, the projector’s internal protection program will start automatically turn off the projector. This is the projector’s cooling system and high-temperature thermal protection of the basic operating principle. This feature ensures maximum life of the projector.
With the use of the laser projector to expand, and in individual areas, such as: education, surveillance and other areas in the use of high strength, high temperature thermal protection in these areas is to protect the projector from the role to affect changes in the roles. In addition, in order to enhance the effect of air circulation, the projector’s cooling fan using the noise generated will impact on users. Shows that heat and temperature protection is essential projector functions, and this function and the existence of conflicts between users.
For the national 100 schools in the projector using the survey results suggest that the current high-temperature thermal protection in more than 50% of schools received sufficient attention in the projector usage is high school, the school classroom environment is not ideal, 100 200 mostly large classroom, the room temperature up to 35 ℃ battery for inspiron 15, battery for lp-e8, the projector close to 8 hours of continuous work day hours. Allows the projector to the phenomenon of high temperature thermal protection significantly increased the frequency of occurrence, and directly affect the normal teaching activities.
To solve this problem, some schools to consider the addition of air conditioning equipment, lowering the ambient temperature, but into a larger, more adequate funding so only for the school. Currently, the school in general practice is to add a projector behind the power of the larger fan, but according to the actual test, this method of reducing the frequency of the phenomenon of high temperature thermal protection not significantly help. This is because they use a projector in the classroom lifting, more generally the number of classrooms indoor school, at room temperature at 89.6 F, the indoor temperature has reached the top 96.8 F (96.8 F thermal protection for the projector’s start-up temperature). As the ambient temperature has reached the critical temperature, install fans into the projector does not make the air temperature dropped, and the fan in the machine, the projector can not effectively improve the air flow battery hp photosmart R817XI, cheap camera battery pack so the fans can not install high temperature thermal protection to reduce the frequency of the phenomenon.
Light of the current user has used the projectors can provide external cooling products to delay high-temperature thermal protection purposes. The product into the projector through the lower air temperature inside the projector to slow down the rate of temperature rise, thus extending the projector’s continuous working hours.
How to Deal With Keyboard Flood Problem
Posted by admin in Uncategorized on November 11, 2011
The first step, the surface of a sudden the water after the laptop keyboard as fast as we want to unplug the laptop power supply and remove the battery, so the notebook is powered off. Remember not to press the shutdown button to shut down directly, and now laptops have power management, by default, need to press 4 seconds before they can turn off the dell latitude e6420 battery computer, we do not have the time, in addition to doing so even if the machine is powered off state is also not safe, This step speed must be fast!Inverted, and then to determine the composition of the liquid.
1, pure water
The easiest process to determine what direction the water to see if water is spilled on the keyboard directly from the desktop or over the upper. If it is spilled directly on the keyboard upside down we can put notebook, and then beat the machine back, so most of the water will stay out along the keyboard. Remember at this time not to hit the keyboard, the following keys in this case the rubber pad can play a role in sealing, if the anti-time typing on the keyboard to the water will enter the internal keyboard, causing damage to the keyboard. If water is left over from the desktop, we can water the area down, then forced rejection toss, most of the sony np-fh30 battery centrifugal force being left out of the water will follow the same route.
2, fruit juice, cola
This is too much trouble, because there are sugar juice and cola, fruit juice plus ingredients in the flesh, these things are sticky and will stick buttons below the keyboard on the stand, laptop keyboard keys to know more compact structure, once the dip these sticky things on the whirring will be very troublesome, and cola carbonated beverages, the following board of the keyboard has some corrosion, but also do not worry we have the means, in accordance with “pure water” processing steps, first as soon as possible removed from the notebook keyboard, then the following steps.
The second step, you need to dawdle
Machine the surface of the water is clean and after treatment, according to the liquid ingredients and how much we are different to the next step.
1, the liquid is water and not the amount that we are going as long as the laptop cool, well ventilated place quiet for 24 hours, until a small amount of water flow to the internal keyboard completely evaporated to start the test. If more liquid, pour over the first notebook to be flowing out, wait 24 hours after the boot process. (Here we recommended time is 24 hours, so you can ensure the dell inspiron e1505 battery full evaporation of water)
The third step, we need to hard up. If you spilled liquid on the laptop is fruit juice, cola, milk, coffee and the like, we skip this 24-hour rescue operation immediately. Invasion of the liquid has been keycap won several regional, keyboard, below Cap
The fourth step “bubble”
Keyboard immersed in pure water.
Note:
1, use pure water instead of mineral water.
2, water storage containers to be very clean.
3, the keyboard soak time not too long nor too short, to the water to fully
dissolve the stain the job. The impact of water, soak finished dry, the regional water if the keyboard is not great, and found time, you can not, as above the keyboard to enter the water, but can be handled on an individual keycap. First, remove the keycap, and then soak into the water, the dissolved keycap back some of the attachments, such as sugar, fruit juice. Then wipe with a sponge dipped in rubber keycap below. After the above steps, the keyboard should be able to save most of the water jvc bn-vf823 battery situation, and finally we emphasize water books after first aid measures to prevent improper handling.
First, when the water found in the books, they should immediately cut off the power supply, mainly referring to is unplug the battery cut, off the AC power supply, water flow into the power button at this time if the books are still working, do not press the power off, because At this point press the power, the power supply on board some of the books are likely to short circuit burned, should be directed to unplug the power and battery. In addition, if the water deep, involving only the key parts of the hard disk, power failure should be promptly removed after the best drive should pull out. And then won the keyboard, CPU cooler and some leakage of the motherboard hp compaq business notebook nc2400 battery. But the CPU cooler does not have to tear down, because the close contact between the heatsink and CPU, get in the water a moment, then removed but the situation will get worse, resulting in the CPU part water.
Then, into the shade, dry or dry with a breeze, such as using a fan. Some people may use a hair dryer is not made quickly, it is blowing hot air, water, dry quickly, and if so, then your books waiting to be finished it. As the hair dryer blowing hot air is too strong with high temperature, causing water to back in the form of water vapor released at this time will cause permanent damage electronic devices.
Finally, the wait is almost dry and then the parts when assembled together, in the power adapter connected, then best not to use battery power, because the battery if the water, the situation will become very unstable.
Note:
1, should not have had time to dry on the open power.
2, the keyboard must be open and some win, that water vapor may be due to the keyboard and other parts not removed, the impact of moisture evaporation, making the water vapor was hold in the books inside canon nb-2lh charger, and thus damage to the motherboard.
We usually have a drink at the edge of the habit of typing over a glass of water, a cup of coffee, or cola, milk accidentally spilled on the keyboard above, then the invasion board and other key components. If the liquid flow to the hard disk, data destroyed, the consequences could be disastrous.
iPhone Sales Volume is likely to Overtake Blackberry
Posted by admin in Uncategorized on October 31, 2011
According to media reports today, the U.S. financial consulting firm Trefis released research report, iPhone (mobile Internet) sales are expected next year, beyond the BlackBerry, Apple will replace the BlackBerry maker RIM, the world’s second largest smartphone manufacturer. The following is the summary report:
With the high popularity of the iPhone and BlackBerry, Apple and RIM in the past few years in the global handset market share rising, eating into the traditional Nokia and Motorola mobile phone manufacturers market share. However, market share, RIM Apple’s lead is shrinking, Apple is expected in early 2011 is expected to surpass RIM.
Trefis currently given $ 267 Apple stock target price, the price of the mobile phone business, which contributed 52%; while giving RIM stock $ 77 target price, the mobile phone business contributed about 50%. Mobile business performance is key to Apple’s and RIM’s stock price momentum. 2007 to 2009, Apple’s market share in mobile phones rose from 0.3% to 2%, while RIM’s market share from 1% to 3%. Trefis expected in 2011, Apple’s market share in mobile phones than RIM, the two companies will account for 11% and 8% market share. Trefis also raised more than optimistic about the BlackBerry’s iPhone sales final three reasons:
1, compared with the BlackBerry, Apple has a more complete system of consumer products (including Mac computers, iPad, and Apple TV) and more sophisticated network services (iTunes and the App store), so to attract more consumers.
2, and AT & T as the exclusive sales agreement is terminated, the Apple iPhone in the United States to expand sales channels, sales are expected to promote the rapid rise.
3, iPhone is to enter the enterprise market, which is the BlackBerry’s traditional areas of strength.
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