Paying to fix my computer? No, I made a Ghost image of the hard disk

Paying to fix my computer? No, I made a Ghost image of the hard disk

Usually I find PC users who buy a computer just begin to personalize it with your favorite shows. It normally takes a couple of days to install what they believe they will need. Sometimes it becomes a race to have the computer ready.

After a few months, have sailed thousands of hours, dozens of games installed and have opened multiple user accounts note that the computer is not going so fine. The operating system takes longer to load and slow down games. At this point most people flee forward waiting for the PC is unbearable for some action. This may be advanced if the system has been infected with a virus, some spyware have no disposal or appear to us nasty pop-up ads.There is a way to avoid this going to change the habits from the first day we turn on the computer. First, we see that what we bought and installed works correctly. Usually with take a look at device manager is usually sufficient.

After configuring the Internet connection and integrate the computer into our home network or domain should be verified 'Add or Remove Programs' what we have installed applications, many of them on trial. After doing cleaning and stick with what we're really going to useWe must upgrade the operating system and to strive to install only the basic programs like a text editor, PDF reader, a good browser, codecs, an audio and video, etc. In summary, this series of more business-oriented programs at leisure and not need updating every few minutes.

The key step is to make a Ghost copy of hard drive. It is highly recommended for create multiple partitions on your hard disk each with the size that corresponds to how it is used.For example, if you have 200 GB to 50 GB could give C, which will lodge the file system. 10 GB to copy Ghost to C: and the rest for documents, music, movies etc. Thus, if we ever have a bug in the file system unit leaves it inaccessible, not lose our documents.Today, the tools can Ghost imaging restore the system via network, USB or from a partition other than that we want to recover. When choosing the program is worth keeping in mind that the Ghost image is a copy of one or more partitions on the hard disk and therefore differs from the applications you just backed up.If the image takes us five to ten gigas will not take more than ten minutes to recover the system as we left the first day we turn on the computer, saving and repair in the shop, the inability to use the computer or having to endure that does not perform as expected.

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Lenovo Laptop Review Thinkpad T61, VIA lenovo-batteries.com blog

Lenovo Laptop Review Thinkpad T61, VIA lenovo-batteries.com blog

If the specifications leaked a few days ago you had not been convinced of all, Lenovo has taken a step forward, giving full details of its T61 official.

The T61, supposedly the "tougher Thinkpad, cool and quiet of all time, riding a magnesium alloy casing and incorporates an improved cooling system as well as its Ultra Connect II wireless connectivity, and a lenovo thinkpad t61 battery with 15% over time thanks to the Battery Stretch control. Beyond that, you’ll find a WXGA +, a wide range of Core 2 Duo processors to choose, up to 160 GB hard drive running at 5400 RPM (or 100 GB at 7,200 rpm), NVIDIA Quadro NVS 140M with 128MB memory, an optional Blu-ray drive, gigabit Ethernet jack, Bluetooth, WWAN connectivity via 802.11a/b/g/n to EV-DO or HSDPA if you wish. Not bad, eh? There is also an integrated camera, card reader and four in an XP or Vista, as you like, the choice being considered briefly if you wish to buy a launch, as it will go on sale this month at a price of 1,399 dollars (for the U.S., we have not seen the European prices.)

 

Verdict

More: Ergonomics and successful finish, removable DVD drive two seconds, quiet, about heat stroke, quality of reception Wi-Fi, integrated keyboard tray.

Less: Talk a little short for a laptop pro austere design faithful to the tradition Thinkpad, limited viewing angle, weight and size, screen offset to the right of the center of the PC

 

True to the tradition of the ThinkPad, the Lenovo T61 is a professional tool in its design, its finish, its staffing software or ergonomics. Strong and powerful, he fishes with a slight lack of versatility, especially on gaming applications and entertainment in multi-tasking. A fault quickly forgiven … is above all a Thinkpad!

Lenovo introduced two new ThinkPad notebooks with 14.1 inch wide-format screens - T61 and R61. In the R series wide-format model Appeared for the first time. In the series of large format R model appeared for the first time. Those notebooks are made on the basis of Intel Centrino Pro and Intel Centrino Duo Platforms, Improved They Are Equipped with cooling systems and support with wireless network connection to connect the ultra II. Those scraps are based on Intel Centrino for and Intel Centrino Duo platform, which are equipped with improved cooling systems and a wireless network connection with support of the ultra connect II. According To Lenovo, ThinkPad T61 and R61 are the most durable, cold and quiet ThinkPad models. According to Lenovo, ThinkPad T61 and R61 are the most durable, cold and quiet ThinkPad models.

According to the evaluation of the company, the use of technology in the top cover roll cage covered laptop (check the second picture) strengthening the protection of the screen of a 25% decrease compared to previous ThinkPad models damage. Ensure Supplemental protection is activated by the system protection Impacts Which absorbs energy. Supplemental protection is ensured by the active protection system which absorbs impact energy.

Notebooks are equipped with means for wireless connection: WWAN1 (in some version ThinkPad T61), WLAN 802.11n, Gigabit Ethernet, Bluetooth and modem.

The new cooling system used inn the notebooks help reduce the temperature of 10c and noise level by three decibels compared to previous ThinkPad models.

From other special features of these new models we can observe the presence of dactyloscopic sensors, encryption of hard disks, devices for memory cards and web cameras (available on ThinkPad R61).

Lenovo introduced simultaneously with Lenovo 3000 N200 15.4-inch wide format display, WLAN 802.11n technology adapters, 10/100 Ethernet and Bluetooth. Depending on version, this notebook Can Have the Intel Integrated graphic system or discrete NVIDIA video card. Depending on the version, this notebook can have the Intel integrated graphics system or discrete NVIDIA video card.

 

Populariteit (slotsom)

Soos elke ThinkPad, die T.61 is ‘n notebook toegewyde professionals, roeping verraai deur sekere besonderhede, byvoorbeeld die beskerming van harde skyf ineenstort of die extractor vinnige DVD-eenheid. Sy raam is vaste magnesium en sy mors-bestand sleutelbord splat, maar versigtig wees om nie ‘n vegter. Ditto vir die gebruik, speel, is veral die mees kragtige 3D-en multimedia-programme hardloop, maar het gou vind hulle grense, in teenstelling met kantoor take.

Populariteit (Bad)

Praat ‘n bietjie kort vir’ n laptop pro sober ontwerp Getrou aan die tradisie ThinkPad, beperkte vertoning hoek, gewig en grootte van die skerm verplaas aan die regterkant van die middel van die rekenaar

Populariteit (Goed)

Ergonomie en suksesvol voltooi nie, verwissel DVD-speler twee sekondes, rustige, onderworpe aan hitte beroerte, die kwaliteit van die ontvangs Wi-Fi, geïntegreerde sleutelbord bak.

 

The ThinkPad T61 is Lenovo’s perceived as deriving high end of R61. Discover this ultra-powerful notebook.

Echoing the same hull as the ThinkPad R61, the T61 features the same look antiquated. The widescreen 14.1-inch footprint results in a fairly large: 33.5 x 23.7 x 3.5 cm. However, our test model has a standard battery of four cells and therefore shows lighter than R61 as a poster on our balance weight of 2.37 pounds.

Plane

The machine loaned by Lenovo brings together some very upscale, mostly drawn from the organ bank of the new version of the Intel Centrino platform. In honor where honor, let the processor. This is a Core 2 Duo T7700 clocked at 2.4GHz, the fastest processors at FSB 800MHz. Lenovo combines 2 GB DDR2 RAM. Based on our tests, the computing power and multimedia capabilities of this laptop immediately classify the first place. Another excellent result, the bandwidth of the memory also reached record highs. These components are accompanied with a SATA hard drive with platters rotating at 5,400 rpm a total capacity of 160 GB of storage The unit, supplemented by a DVD Super Multi Double Layer, proved both quick and silent. A shock sensor protects your data from physical damage while a fingerprint reader takes care to deny access where appropriate. The screen of 14.1 inches reaches the comfortable resolution of 1440 x 900 pixels. It has the power of a circuit NVIDIA Quadro NVS 140M 128MB integrated graphics memory. This video chip provides support DirectX 10 and a minimum power consumption. The other configuration is standard with Bluetooth 2.0, Wi-Fi and the last component Intel 802.11n and Gigabit Ethernet. The number of catches is correct with three USB and Firewire even if we still regret the presence of a single video output VGA.

In conclusion

A powerful processor and a battery of low capacity. Two factors leading to insufficient autonomy. Our T61 has confessed his limits after 72 minutes. Certainly not enough for a business user who buys surely a high-capacity lenovo batteries. That said, with a sale price probably more than 2,200 euros, this tool seems built for durability. Confident, Lenovo awarded him a guarantee of three years.

 

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Microbial fuel cell operating conditions, optimization of water

Microbial fuel cell operating conditions, optimization of water

Glucose as fuel, building a microbial fuel cell, were investigated by ion-exchange membrane type (and not), electrode material, electrode spacing, ionic strength (and add the potassium ferricyanide) on the performance of microbial fuel cells, the results show that : Using the homogeneous cation exchange membrane, not a polished high-purity graphite plate, electrode spacing 0.5 cm, adding NaCl solution and potassium ferricyanide to produce the maximum power density. Optimization of the microbial fuel cell operating conditions.

Microbial fuel cell is directly with the catalytic role of microbial fuel (such as organic acids, sugars, etc.) of the chemical energy is converted to electrical energy, domestic and industrial wastewater containing organic matter rich as its fuel source, from which direct access power. Microbial fuel cell performance of the main factors: microbial species, the chemical substrate, ion-exchange membrane type (or not), the battery internal resistance, ionic strength, electrode materials and electrode gap.

Microbial fuel cell (Microbial fuel cells, MFC) Yin and Yang are the two poles chamber volume 300 ml, the question at the poles to install a room in advance in 2% (y) NaCl solution, the ion exchange membrane immersed 24h (area 31 .3 cm2), ion-exchange membrane were placed on both sides of the anode and cathode, the anode chamber upper seal (leaving a sample port, doubles as a gas outlet), the cathode chamber is exposed to air. External circuit, an adjustable load resistor with a multimeter to measure the resistance and voltage values.

Take a brewery wastewater treatment sludge, wastewater in the laboratory glucose acclimation, the sludge obtained after the inoculation of domesticated 25m1, COD in the 5000 mg l-1 or so, lL glucose nutrient solution containing 4.699 , 0.489 ammonium chloride, potassium dihydrogen phosphate and other trace elements 0.119 (10 m1), adjust the pH value with sodium bicarbonate in about 7, and add 100 mm01.1-1 phosphate buffer solution. When the output voltage is low, the anode chamber in the centrifuge the solution, discard the supernatant (supernatant for the determination of COD, potassium dichromate method (GBll914-89)), add a new nutrient solution and phosphate buffer solution, Q intermittent operation, the battery fixed external resistance 500Q.

Respectively the homogeneous cation exchange membrane black, yellow-phase cation exchange membrane and the green phase anion-exchange membrane and not polished high purity graphite plate (7.4 cm 7.1 cm) for the electrodes. Of different ion-exchange membrane microbial fuel cell production of electricity (see Figure 1). It can be seen from Figure l, reaches a steady state, the use of homogeneous cation exchange membrane fuel cells produced by the microbial stability of the maximum power for 7.1 mw m ~, was followed by heterogeneous cation exchange membrane, 4.6 mW m ~, while the heterogeneous anion exchange membrane is only 3.5 mw m ~, which Kim and other "o use of anion exchange membranes have the maximum power density is not consistent with the conclusions, which may be the nature of the membrane used different about: used in the study of their anion exchange membrane is a chemical group NH,, with a NH, group of the anion exchange membrane to exchange of phosphate ions, thereby maintaining the pH value of the anode chamber 7, while the cation exchange membrane of the pH value of the anode chamber with the operation of the system will be gradually reduced, which will result in decreased activity of anaerobic sludge. In this experiment, we used anion exchange membrane, the chemical group is a CH: N ( CH,).. anion exchange membrane on the phosphate ion exchange capacity is relatively weak, and do not have the ability to exchange cations, which results not perform as cation exchange membrane.

Cation exchange membrane by phase, not polished high purity graphite plate (7.4 cm x7.1 cm) constructed microbial fuel cell to regulate the distance between electrodes were O. 5 cm and 10 cm, the corresponding production of electricity in Figure 4, Figure 4 shows the expansion of distance between electrodes makes the battery electric power production was significantly reduced (from 4.6 mw m. 2 dropped to 1.8 mw m ), which is due to the expansion of the electrode spacing makes the transfer of protons from the solution to expand, with a corresponding increase in resistance of microbial fuel cells, thereby reducing its electric power production.

Phase anion-exchange membrane using microbial fuel cell to run a cycle, the nutrient solution added 100 mm01.1. 1 of the NaCl solution, and then measured its production of electricity, the results shown in Figure 5. Add NaCl solution, the battery electric power production increased to a certain extent (from 3.5 mW m. 2 increased to 4.8 mw m. 2). Add a reference electrode with NaCl solution after measuring the voltage electrodes and found that the anode and the cathode voltage reduces the operating voltage increases, which makes the battery voltage increases, which is an increase of ionic strength, making the battery internal resistance decreases reasons.

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