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Electronic circuit diagram database

Down to the wire: Inexpensive technique for making high quality nanowire solar cells Solar or photovoltaic cells represent one of the best possible technologies for providing an absolutely clean and virtually inexhaustible source of energy to power our civilization. However, for this dream to be realized, solar cells need to be made from inexpensive elements using low-cost, less energy-intensive processing chemistry, and they need to efficiently and cost-competitively convert sunlight into electricity. A team of researchers with the U.S. Peidong Yang, a chemist with Berkeley Lab's Materials Sciences Division, led the development of a solution-based technique for fabricating core/shell nanowire solar cells using the semiconductors cadmium sulfide for the core and copper sulfide for the shell. "This is the first time a solution based cation-exchange chemistry technique has been used for the production of high quality single-crystalline cadmium sulfide/copper sulfide core/shell nanowires," Yang says. This research was supported by the DOE Office of Science.

Hard Drive Size Barriers, In Depth Hard Drive Size Limitations and BarriersIn Depth If you have arrived here through a search engine, and there's no menu to the left click here! In the first segment, Hard Drive Size Limitations and Barriers - The Basics, we covered the basics of hard drive size barriers and limitations, how it began and what you might expect when upgrading to larger hard drives, especially in older (legacy) equipment. In this segment, we will cover some of those same limitations and barriers in greater depth along with all of the recently documented barriers. and we will document the circumstances. As older legacy equipment is discarded in favor of today's faster systems with tons of new technology, many of the older barriers will disappear. Important: Most of the issues we will discuss here are BIOS related, and hence involve IDE/ATA hard disks rather than SCSI hard disks. Early Size Barriers and LimitationsA Refresher Current Size Barriers and Limitations The 1,024 Cylinder (504 MiB / 528 MB) Barrier

Alternative Windows software 2403 ranked apps and software based on opinions from 1592 users. Vacuum your Firefox databases for better performance - Mozilla L Since Firefox 3.0, bookmarks, history and most storage is kept in SQLite databases. Also, the default history time span was raised from 9 to 90 days as it became more discoverable and useful thanks to the awesome bar, so depending on your browsing habits it could represent some pretty large databases. Aas any other database, SQLite databases become fragmented over time and empty spaces appear all around. But, since there are no managing processes checking and optimizing the database, these factors eventually result in a performance hit. To do this: Step 1: get sqlite3, a single file command line SQLite database manager, for your platform (available for Linux, Windows, and Mac OS X). Step 2: Copy the downloaded binary to your profile folder where all your .sqlite files reside. Step 3: Close Firefox. Step 4: From a command line prompt in your profile folder, run: sqlite3 [SQLite database] VACUUM replacing [SQLite database with the name of a SQLite file, like places.sqlite.

Create a “Switch Between Windows” Shortcut in Windows 7 The Aero Desktop introduced in Windows Vista and now part of Windows 7 made amazing visual enhancements to an otherwise static desktop found in previous versions of the operating system. One useful feature is the ability to cycle through open windows and programs using a three-dimensional interface. Unfortunately, Microsoft made access to this feature a bit complicated for some people. By holding down the Windows key on the keyboard and continually tapping the Tab key, you can cycle through your open windows in three dimensions. Given that this feature is difficult to access, most people resort to the taskbar to switch between windows. However, there is a way to create a shortcut to this feature so you are just one click away from using the Aero Desktop 3-D windows switching method. Create a Switch Between Windows Icon To create your Switch Between Windows shortcut, begin by right clicking on the desktop and selecting New and then Shortcut. C:\Windows\System32\rundll32.exe DwmApi #105

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