tag:blogger.com,1999:blog-48689923306149309472024-03-13T23:11:55.009-07:00Mr Electrical All about electricalAnonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.comBlogger174125tag:blogger.com,1999:blog-4868992330614930947.post-80408903307108303612013-08-17T08:08:00.002-07:002013-08-17T08:08:19.624-07:00Arbic to English dictionary<div dir="ltr" style="text-align: left;" trbidi="on">
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-80683938839662990262013-08-01T03:00:00.003-07:002013-08-01T03:00:42.973-07:00Cultures of Energy: Power, Practices, Technologies<div dir="ltr" style="text-align: left;" trbidi="on">
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<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">2013 | ISBN-10: 1611321654, 1611321662 | 352 pages | PDF | 3 MB</span><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">This path-breaking volume explores cultures of energy, the underlying but under-appreciated dimensions of both crisis and innovation in resource use around the globe. <a name='more'></a></span><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">Theoretical chapters situate pressing energy issues in larger conceptual frames, and ethnographic case studies reveal energy as it is imagined, used, and contested in a variety of cultural contexts.</span></td></tr>
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-4616270159005378882013-08-01T02:49:00.002-07:002013-08-01T02:49:35.949-07:00Electrical Studies For Trades, 5th edition<div dir="ltr" style="text-align: left;" trbidi="on">
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Electrical Studies For Trades, 5th edition</h1>
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<span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; font-size: 13px; line-height: 19px; text-align: left;">2013 | ISBN-10: 113327823X | 608 pages | PDF | 63 MB</span><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; font-size: 13px; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; font-size: 13px; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; font-size: 13px; line-height: 19px; text-align: left;">Packed with real-world examples, vivid illustrations, and the latest developments from the field, "Electrical Studies for Trades, 5th Edition" is ideal for current<a name='more'></a> and future service technicians in air conditioning and refrigeration, construction, and facilities management - and anyone else who needs a practical knowledge of electricity. </span></div>
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-42377430922240637902013-08-01T02:45:00.005-07:002013-08-01T02:45:55.616-07:00Teach Yourself PIC Microcontrollers for Absolute Beginners<div dir="ltr" style="text-align: left;" trbidi="on">
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<span style="color: #990033;"> Teach Yourself PIC Microcontrollers for Absolute Beginners</span></h1>
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<span style="color: #0a1414; font-size: 13px; font-weight: normal; line-height: 19px; text-align: left;">English | ISBN: n/a | 147 pages | PDF | 3.11 MB</span><br style="border: 0px; color: #0a1414; font-size: 13px; font-weight: normal; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><br style="border: 0px; color: #0a1414; font-size: 13px; font-weight: normal; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><span style="color: #0a1414; font-size: 13px; font-weight: normal; line-height: 19px; text-align: left;">This book, is an entry level text for those who want to explore the wonderful world of microcontrollers. Electronics has always fascinated me, ever since I was a child, making small crystal radio was the best project I still remember. </span></div>
<a name='more'></a><br style="border: 0px; color: #0a1414; font-size: 13px; font-weight: normal; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><span style="color: #0a1414; font-size: 13px; font-weight: normal; line-height: 19px; text-align: left;">I still enjoy the feel when I first heard my radio. Over the period of years and decades electronics has progressed, analogs changed into digital and digital into programmable.</span><br />
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-51668283001336192452013-06-02T21:47:00.000-07:002013-06-02T21:47:02.762-07:00Red Rover: Inside the Story of Robotic Space Exploration, from Genesis<div dir="ltr" style="text-align: left;" trbidi="on">
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<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">ISBN: 0465055982 | 2013 | EPUB | 256 pages | 3 MB</span><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">In its eerie likeness to Earth, Mars has long captured our imaginations?both as a destination for humankind and as a possible home to extraterrestrial life. It is our twenty-first century New World; its explorers robots, shipped 350 million miles from Earth to uncover the distant planet��s secret<a name='more'></a></span></td></tr>
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-79020286534805450722013-06-02T21:43:00.001-07:002013-06-02T21:43:04.683-07:00Arduino Workshop: A Hands-On Introduction with 65 Projects<div dir="ltr" style="text-align: left;" trbidi="on">
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<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">ISBN: 1593274483 | 2013 | PDF | 392 pages | 10 MB</span><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">Learn the Basics, Build the Projects, Create Your Own</span><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">The Arduino is a cheap, flexible, open source microcontroller platform designed to make it easy for hobbyists to use electronics in homemade projects. With an almost unlimited range of input and output add-ons, sensors, indicators, displays, motors, and more, the Arduino offers you countless ways to create devices that interact with the world around you.<a name='more'></a></span><br /><br /><a href="http://longfiles.com/d6am12jd8pm9/1593274483ArduinoWorkshop.pdf.html" target="_blank">Download</a></td></tr>
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-24235534589224385002013-06-01T22:35:00.001-07:002013-06-01T22:35:13.636-07:00PC.com - April 2013<div dir="ltr" style="text-align: left;" trbidi="on">
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<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">English | 164 Pages | True PDF | 176.79 Mb<a name='more'></a></span></td></tr>
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-35297602036968823342013-06-01T22:28:00.001-07:002013-06-01T22:29:10.390-07:00Concentrating solar power technology: Principles, developments and applications<div dir="ltr" style="text-align: left;" trbidi="on">
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<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">2012 | 708 Pages | ISBN: 1845697693 | PDF | 11 MB</span><br />
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<span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">Concentrating Solar Power (CSP) Technology represents one of the most advanced renewable energy systems capable of large scale power production. By concentrating direct sunlight using mirrors and/or lenses, much higher operating temperatures are achieved, allowing existing solar technologies to covert energy at much higher efficiencies than usual</span><br />
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-32015993343725123042013-06-01T22:12:00.001-07:002013-06-01T22:12:16.085-07:00Make: Technology on Your Time Volume 33<div dir="ltr" style="text-align: left;" trbidi="on">
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<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">English | ISBN: 1449327656 | 2013 | PDF | 160 pages | 25 MB</span><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><br style="background-color: #f2f7f7; border: 0px; color: #0a1414; font-family: Arial; line-height: 19px; margin: 0px; padding: 0px; text-align: left;" /><span style="background-color: #f2f7f7; color: #0a1414; font-family: Arial; line-height: 19px; text-align: left;">MAKE Volume 33 has great projects for makers of all skill levels Arduino projects, internet gadgets, food, music, personal fabrication, astronomy, electronics, and more. In our special Codebox section you'll learn about software of interest to makers, including circuit board design, 3D CAD and printing, microcontrollers and creative coding, and programming for kids, featuring Microsoft's SmallBasic, Scratch, and the extremely popular Kickstarter-funded project Makey Makey. And you'll meet fascinating makers, like the maniacs behind the popular Power Wheels Racing events at Maker Faire.<a name='more'></a></span></td></tr>
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-91452447602669659922013-01-16T23:13:00.001-08:002013-06-01T05:42:44.056-07:00Electronic Letter Box<div dir="ltr" style="text-align: left;" trbidi="on">
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Electronic Letter Box</h1>
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The circuit illustrated below is used as an electronic letter box. When letter is kept in this box then a LED glows which indicates that letter is inside the Box.</div>
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This circuit uses a popular timer I.C which is 555. I.C 555 is connected as comparator with pin 6 connected with positive supply, the output goes high-1 when the trigger pin 2 is at lower than 1/3 level of the supply voltage. Conversely the output goes low-0 , when it is above 1/3 level. So small change in the voltage of pin 2 is enough to change the output of pin 3 from 1 to 0 and 0 to 1. The output has only two states high and low and can not remain in any intermediate stage. It is power by 9V battery for portable use. The circuit is economic in power consumption. Pin 4,6&8 is connected to the positive supply and pin 1 is grounded.<br />
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To detect the present of letter we have used LDR and a source of light. LDR is a special type of resistance whose value depends on the brightness of the light which is falling on it. It has a resistance of about 1 megaohms when in total darkness, but a resistance of only about 2-5 k ohms when brightly illuminated. It responds to a large part of the light spectrum.</div>
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The source of light and LDR is so adjusted in the letter box that light will directly fall on the LDR but when letter is kept inside then it will block the beam of light and LDR will be under darkness.</div>
<div style="background-color: white; border: 0px; color: #666666; font-family: Lato, sans-serif; font-size: 14px; line-height: 21px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">
<span style="border: 0px; font-family: inherit; font-size: 1.4em; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> We have made a potential divider circuit with LDR and 100 K variable resistance </span><span style="border: 0px; font-family: inherit; font-style: inherit; line-height: 1.571em; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="border: 0px; font-family: inherit; font-size: medium; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">connected in series. Voltage is directly proportional to conductance so more voltage we will get by this divider when LDR is getting light and low voltage in darkness. Divided voltage is given to pin 2nd of 555. As soon as LDR gets dark the voltage of the pin 2 drops 1/3 of the supply voltage and pin 3 gets high and LED glows.</span></span></div>
<span style="background-color: white; border: 0px; color: #666666; font-family: Lato, sans-serif; font-size: 14px; line-height: 1.571em; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="border: 0px; font-family: inherit; font-size: medium; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">we can also useWe can also use two LED at output pin 3, for present LED 1 and for absent LED 2. For this method one LED is connected as forward bias and other is connected as reverse bias to indicate both high and low conditions. To limit the current of LED resistance is used in series.</span></span><br />
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For source light, use LED of colour red or white. For LED 2 and 3 you can use any other color- green, red, yellow or blue.</div>
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<img src="http://circuiteasy.com/circuit_diagram/electronic-letter-box.gif" style="margin: 0px; max-width: 100%; padding: 0px;" /><br />
Circuit Diagram of Electronic Letter Box</div>
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<b style="margin: 0px; padding: 0px;">Component List :</b><br />
1) LED 3 pc's<br />
2) LDR 1pc<br />
3) Resistance 470 Ohms 3pcs<br />
4) Variable resistance/preset 100 K<br />
5) IC 555<br />
6) Battery 9V with Snap<br />
7) Switch</div>
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<b style="margin: 0px; padding: 0px;">LED</b>= Light Emitting Diode<br />
<b style="margin: 0px; padding: 0px;">LDR</b>= Light Dependent Resistance<br />
<b style="margin: 0px; padding: 0px;">IC</b> = Integrated Circuit</div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-6076754013721687122012-12-18T07:38:00.003-08:002012-12-18T07:38:56.993-08:00Servo Magazine No.12 - December 2012<div dir="ltr" style="text-align: left;" trbidi="on">
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<tr><td class="tr-caption" style="text-align: center;"><b>Servo <span class="IL_AD" id="IL_AD3">Magazine</span> Issue 12 - December 2012 (True PDF)</b><br />English | 84 pages | True PDF | 13.98 Mb<a name='more'></a><div style="background-color: transparent; border: medium none; color: black; overflow: hidden; text-align: left; text-decoration: none;">
<b>SERVO Magazine</b> is a monthly <span class="IL_AD" id="IL_AD2">robotics</span> publication produced by T&L <span class="IL_AD" id="IL_AD4">Publications</span>.It has been an active member of the robotics community, sponsoring such events as the FIRST Robotics Competition, the Robonexus robotics convention and the Tetsujin robotics competition.<div style="background-color: transparent; border: medium none; color: black; overflow: hidden; text-align: left; text-decoration: none;">
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-16451780541043452412012-12-17T13:32:00.001-08:002012-12-17T13:32:15.477-08:00Elektor Electronics UK - December 2012<div dir="ltr" style="text-align: left;" trbidi="on">
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-81800703050367998252012-12-16T04:27:00.000-08:002012-12-16T04:27:31.415-08:00Distribution Panels<div dir="ltr" style="text-align: left;" trbidi="on">
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-74168841207547302732012-12-16T04:20:00.000-08:002012-12-16T04:21:16.054-08:00Electrical Power Transmission 1<div dir="ltr" style="text-align: left;" trbidi="on">
<h1 style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; color: #ff4e00; font-family: arial; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: normal; margin-left: 20px; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;">
Electrical Power Transmission system</h1>
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Electrical power is generated at different generating stations. These generating stations are not necessarily situated at the load center. During construction of generating station number of factors to be considered from economical point of view. These all factors may not be easily available at load center, hence generating station are not normally situated far away from load center.<br />
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<div class="topicIndex" style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; color: black; float: left; font-family: arial; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; height: 750px; letter-spacing: normal; line-height: normal; margin: 0px 20px 20px; orphans: 2; padding-left: 0px; padding-top: 0px; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; width: 310px; word-spacing: 0px;">
<span style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: white; color: black; display: inline !important; float: none; font-family: arial; font-size: small; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;">Load center is the place where maximum power is consumed. Hence there must be some means by which the generated power must be transmitted to the load center.</span><b style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; color: black; font-family: arial; font-size: medium; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;">Electrical Transmission system</b><span class="Apple-converted-space"> </span>is the means of transmitting power from generating station to different load centers.</div>
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Factor to be considered for constructing a generating station</h3>
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During planning of construction of generating station the following factors to be considered for economical generation of electrical power.</div>
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1) Easy availability of water for Thermal Power Generating Station.</div>
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2) Easy availability of land for construction of power station including it's staff township.</div>
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3) For Hydral Power station there must be a dam on river. So proper place on the river must be chosen in such a way that the construction of the dam can be done in most optimum way.</div>
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4) For thermal station easy availability of fuel is one of the most important factors to be considered.</div>
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5) Better communication for goods as well as employees of the power station also to be kept into consideration.</div>
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6) For transporting very big spare parts of turbines, alternators etc, there must be wide road ways, rain communication, and deep and wide river must pass away nearby the power station.</div>
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7) For nuclear power plant, it must be situated in such a distance from common location so that there may be any effect from nuclear reaction the heath of common people.</div>
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many other factors also to be considered, but there are beyond the scope of our discussion.</div>
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All the factors listed above are very difficult to be available at load center. The power station or generating station must be situated where all the facilities are easily available. This place may not be necessarily at the load center. The power generated at generating station then transmitted to the load center by means of electrical power transmission system as we said earlier.</div>
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<img alt="Electrical Power Transmission System Engineering" src="http://www.electrical4u.com/images/tower002.jpg" style="border-bottom-left-radius: 6px; border-bottom-right-radius: 6px; border-top-left-radius: 6px; border-top-right-radius: 6px; border: 1px solid rgb(255, 78, 0); float: right; margin: 20px;" title="Electrical Power Transmission System Engineering" /></div>
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The power generated at generating station is in low voltage level as low voltage power generation has some economical values. Low voltage power generation is more economical than high voltage power generation. At low voltage level, bot weight and wide of insulation is less in the alternator, this directly reduces the cost and size of alternator. But this low voltage level power can not be transmitted directly to the consumer end as because this low voltage power transmission is not at all economical. Hence although low voltage power generation is economical but low voltage electrical power transmission is not economical. Electrical power is directly proportional to the product of electrical current and voltage of system. So for transmitting certain electrical power from one place to another, if the voltage of the power is increased then associated electric current of this power is reduced. Reduced current means less I<sup>2</sup>R loss in the system, less cross sectional area of the conductor means less capital involvement and decreased current causes improvement in voltage regulation of the system and improved voltage regulation indicates quality power. Because of these three reasons electrical power mainly transmitted at high voltage level.</div>
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Again at distribution end for efficient distribution of the transmitted power, it is stepped down to its desired low voltage level</div>
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So it can be concluded that first the electrical power is generated at low voltage level then it stepped up to high voltage for efficient transmission of electrical energy. Lastly for distribution of electrical energy or power to different consumers it is stepped down to desired low voltage level.</div>
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This brief discussion of<span class="Apple-converted-space"> </span><b>electrical transmission system</b><span class="Apple-converted-space"> </span>and network, but now we will discussed little bit more details about transmission of electrical energy.</div>
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Transmission of Electrical Energy</h2>
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Fundamentally there are two systems by which electrical energy can be transmitted</div>
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(1) High Voltage DC Electrical Transmission System<br />
(2) High voltage AC Electrical Transmission System</div>
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There are some advantages in using DC transmission system</div>
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i) Only two conductor are required for Dc transmission system. It is further possible to use only one conductor of DC transmission system if earth is utilized as return path of the system.<br />
ii) The potential stress on the insulator of DC transmission system is about 70% of same voltage AC transmission system. Hence less insulation cost is involved in DC transmission system.<br />
iii) Inductance, capacitance, phase displacement and surge problems can be eliminated in DC system.</div>
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Even having these advantages in DC system, generally electrical energy is transmitted by three(3) phase AC transmission system.</div>
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i)The alternating voltages can easily be stepped up & down, which is not possible in DC transmission system.<br />
ii) Maintenance of AC substation is quite easy and economical compared to DC syte.<br />
iii) The transforming in AC sub station is much easier than motor - generator sets in DC system</div>
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But AC transmission system also have some disadvantages like,</div>
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i) The volume of conductor used in AC system is much higher than that of DC<br />
ii)The reactance of the line, affects the voltage regulation of electrical power transmission system<br />
iii) Problems of skin effects and proximity effects only found in AC system.<br />
iv) AC transmission system is more likely to be affected by corona than DC system.<br />
v) Construction of AC electrical power transmission network is more completed than DC system.<br />
vi) Proper synchronizing is required before inter connecting two or more transmission lines together, Synchronizing can totally be omitted in DC transmission system.</div>
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com4tag:blogger.com,1999:blog-4868992330614930947.post-30261130844566415752012-12-15T21:22:00.000-08:002012-12-15T21:25:02.143-08:00ELECTRICAL INSTALLATION AND DESIGN<div dir="ltr" style="text-align: left;" trbidi="on">
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bThe volume includes a set of selected papers extended and revised from
the 2011 International Conference on Mechanical Engineering and
Technology, held on London, UK, November 24-25, 2011. Mechanical
engineering technology is the application of physical principles and
current technological developments to the creation of useful machinery
and operation design. Technologies such as solid models may be used as
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dynamics (CFD) of the design. Through the application of computer-aided
manufacturing (CAM), the models may also be used directly by software
to create "instructions for the manufacture of objects represented by
the models, through computer numerically controlled (CNC) machining or
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This volume covers the subject areas of mechanical engineering and
technology, and also covers interdisciplinary subject areas of
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researchers, graduate students and other interested readers benefit
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<span style="font-size: large;"><span style="font-weight: normal;"><span style="font-size: small;">Industrial electronics systems govern so many different functions that
vary in complexity��from the operation of relatively simple
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machines and systems, including robots and entire fabrication processes.</span></span> </span></h1>
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-15127299600428749532012-12-11T09:52:00.000-08:002012-12-11T09:52:31.321-08:00Electric & Hybrid Vehicle Technology Magazine - July 2012<div dir="ltr" style="text-align: left;" trbidi="on">
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-28371158299238923032012-12-11T07:36:00.002-08:002012-12-11T07:36:11.738-08:00MATLAB for Engineers - Applications in Control, Electrical Engineering, IT and Robotics by Karel Perutka<div dir="ltr" style="text-align: left;" trbidi="on">
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<tr><td class="tr-caption" style="text-align: center;"><div style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: white; color: #4c4b4c; font-family: Tahoma, Arial, sans-serif; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 19.200000762939453px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;">
<span style="font-family: Verdana, sans-serif;"><b>Details of Book:</b><span class="Apple-converted-space"> </span>MATLAB for Engineers<u><span class="Apple-converted-space"></span><span class="IL_AD" id="IL_AD5" style="background-attachment: scroll ! important; background-color: transparent ! important; background-image: none ! important; background-position: 0% 50%; background-repeat: repeat repeat ! important; border-bottom: 1px solid rgb(0, 153, 0) ! important; color: rgb(0, 153, 0) ! important; cursor: pointer ! important; display: inline ! important; float: none ! important; font-family: Verdana,sans-serif ! important; font-size: 12px ! important; font-style: normal ! important; font-weight: normal ! important; padding: 0px 0px 1px ! important; position: static;"></span></u><span class="Apple-converted-space"></span><span class="IL_AD" id="IL_AD8" style="background-attachment: scroll !important; background-color: transparent !important; background-image: none !important; background-position: 0% 50%; background-repeat: repeat repeat !important; border-bottom-color: rgb(0, 153, 0) !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; color: rgb(0, 153, 0) !important; cursor: pointer !important; display: inline !important; float: none !important; font-family: Verdana, sans-serif !important; font-size: 12px !important; font-style: normal !important; font-weight: normal !important; padding: 0px 0px 1px !important; position: static; text-decoration: underline !important;"></span></span><br /><span style="font-family: Verdana, sans-serif;"><b>Book:</b><span class="Apple-converted-space"> </span>MATLAB for Engineers - Applications in Control,<span class="Apple-converted-space"> </span>Electrical Engineering, IT and Robotics</span><br /><span style="font-family: Verdana, sans-serif;"><b>Authors:<span class="Apple-converted-space"> </span></b>Karel Perutka</span><br /><span style="font-family: Verdana, sans-serif;"><b>ISBN:<span class="Apple-converted-space"> </span></b>9789533079141</span><span style="font-family: Verdana, sans-serif;"><b><span class="IL_AD" id="IL_AD2" style="background-attachment: scroll !important; background-color: transparent !important; background-image: none !important; background-position: 0% 50%; background-repeat: repeat repeat !important; border-bottom-color: rgb(0, 153, 0) !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; color: rgb(0, 153, 0) !important; cursor: pointer !important; display: inline !important; float: none !important; font-family: Verdana, sans-serif !important; font-size: 12px !important; font-style: normal !important; font-weight: bold !important; padding: 0px 0px 1px !important; position: static; text-decoration: underline !important;"></span></b><span class="Apple-converted-space"> </span>InTech</span><br /><span style="font-family: Verdana, sans-serif;"><b>Publication Date:</b><span class="Apple-converted-space"> </span>Oct 2011<a name='more'></a></span></div>
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<b>Description:</b></div>
<div style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: white; color: #4c4b4c; font-family: Tahoma, Arial, sans-serif; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 19.200000762939453px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;">
<span style="font-family: Verdana, sans-serif;">The book presents several approaches in the key areas of practice for which the<span class="Apple-converted-space"><b> MATLAB SOFTWERE </b></span><span class="IL_AD" id="IL_AD1" style="background-attachment: scroll !important; background-color: transparent !important; background-image: none !important; background-position: 0% 50%; background-repeat: repeat repeat !important; border-bottom-color: rgb(0, 153, 0) !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; color: rgb(0, 153, 0) !important; cursor: pointer !important; display: inline !important; float: none !important; font-family: Verdana, sans-serif !important; font-size: 12px !important; font-style: normal !important; font-weight: normal !important; padding: 0px 0px 1px !important; position: static; text-decoration: underline !important;"></span><span class="Apple-converted-space"> </span>package was used. Topics covered include applications for: -Motors -Power systems -Robots -Vehicles The rapid development of technology impacts all areas. Authors of the book chapters, who are experts in their field, present interesting solutions of their work. The book will familiarize the readers with the solutions and enable the readers to<span class="IL_AD" id="IL_AD3" style="background-attachment: scroll !important; background-color: transparent !important; background-image: none !important; background-position: 0% 50%; background-repeat: repeat repeat !important; border-bottom-color: rgb(0, 153, 0) !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; color: rgb(0, 153, 0) !important; cursor: pointer !important; display: inline !important; float: none !important; font-family: Verdana, sans-serif !important; font-size: 12px !important; font-style: normal !important; font-weight: normal !important; padding: 0px 0px 1px !important; position: static; text-decoration: underline !important;"> enlarge</span><span class="Apple-converted-space"> </span>them by their own research. It will be of great interest to control and electrical engineers and students in the fields of research the book covers.</span></div>
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-1528267260191250192012-12-11T07:16:00.000-08:002012-12-11T07:19:14.801-08:00Nuts and Volts - Full Year 2012 Issues Collection<div dir="ltr" style="text-align: left;" trbidi="on">
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-44021115634931489592012-12-11T01:43:00.001-08:002012-12-11T01:43:21.187-08:00IEEE GREEN BOOK<div dir="ltr" style="text-align: left;" trbidi="on">
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<strong>Description: </strong><span class="description">The
problems of system grounding, that is, connection to ground of neutral,
of the corner of the delta, or of the midtap of one phase, are covered.
The advantages and disadvantages of grounded vs. ungrounded systems are
discussed. Information is given on how to ground the system, where the
system should be grounded, and how to select equipment for the ground of
the neutral circuits. Connecting the frames and enclosures of electric
apparatus, such as motors, switchgear, transformers, buses, cables,
conduits, building frames, and portable equipment, to a ground system is
addressed. <a name='more'></a>The fundamentals of making the interconnection of a ground
conductor system between electric equipment and the ground rods, water
pipes, etc., are outlined. The problems of static electricity— how it is
generated, what processes may produce it, how it is measured, and what
should be done to prevent its generation or to drain the static charges
to earth to prevent sparking—are treated. Methods of protecting
structures against the effects of lightning are also covered. Obtaining a
low-resistance connection to earth, use of ground rods, connections to
water pipes, etc., are discussed. A separate chapter on electronic
equipment is included.</span></div>
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Anonymoushttp://www.blogger.com/profile/11262300947222420603noreply@blogger.com0tag:blogger.com,1999:blog-4868992330614930947.post-6792585043195304452012-12-11T01:30:00.000-08:002012-12-11T01:34:16.135-08:00Electrical convertions<div dir="ltr" style="text-align: left;" trbidi="on">
<h1 style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: white; color: #333333; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 1.5em; font-style: normal; font-variant: normal; font-weight: bold; letter-spacing: normal; line-height: normal; margin-bottom: 4px; margin-top: 10px; orphans: 2; padding-bottom: 0px; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;">
How to convert watts to lumens</h1>
<div style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: white; color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; margin-bottom: 2px; margin-top: 2px; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;">
How to convert<span class="Apple-converted-space"> </span>electric power<span class="Apple-converted-space"> </span>in<span class="Apple-converted-space"> </span>watts (W)<span class="Apple-converted-space"> </span>to luminous flux in lumens (lm).</div>
<div style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: white; color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; margin-bottom: 2px; margin-top: 2px; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;">
You can calculate lumens from watts and luminous efficacy. </div>
<div style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: white; color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; margin-bottom: 2px; margin-top: 2px; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;">
Watt and lumen units represent different quantities, so you can't convert watts to lumens.</div>
<h3 style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: white; color: #333366; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 1.2em; font-style: normal; font-variant: normal; font-weight: bold; letter-spacing: normal; line-height: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;">
Watts to lumens calculation formula</h3>
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The luminous flux<span class="Apple-converted-space"> </span><i>Φ</i><sub><span style="font-size: 0.6em;">V</span></sub><span class="Apple-converted-space"> </span>in lumens (lm) is equal to the power P in watts (W), times the luminous efficacy<span class="Apple-converted-space"> </span><i>η</i><span class="Apple-converted-space"> </span>in lumens per watt (lm/W):</div>
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<i>Φ</i><sub><span style="font-size: 0.6em;">V</span>(lm)</sub><span class="Apple-converted-space"> </span>=<span class="Apple-converted-space"> </span><i>P</i><sub>(W)</sub><i><span class="Apple-converted-space"> </span></i>×<i><span class="Apple-converted-space"> </span>η</i><sub>(lm/W)</sub></div>
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So</div>
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lumens = watts × (lumens per watt)<br />
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or</div>
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lm = W × (lm/W)</div>
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Example</h4>
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What is the luminous flux of a lamp that has power consumption of 60 watts and luminous efficacy of 15 lumens per watt?</div>
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<i>Φ</i><sub><span style="font-size: 0.6em;">V</span></sub><span class="Apple-converted-space"> </span>= 60W × 15lm/W = 900lm</div>
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Luminous efficacy table</h3>
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<tr style="color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em;"><th style="background-color: #e0e0e0; border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; font-style: normal; padding: 5px;">Light type</th><th style="background-color: #e0e0e0; border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; font-style: normal; padding: 5px;">Typical<br />
luminous efficacy<br />
(lumens/watt)</th></tr>
<tr style="color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em;"><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">Tungsten incandescent light bulb</td><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">12.5-17.5 lm/W</td></tr>
<tr style="color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em;"><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">Halogen lamp</td><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">16-24 lm/W</td></tr>
<tr style="color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em;"><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">Fluorescent lamp</td><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">45-75 lm/W</td></tr>
<tr style="color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em;"><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">LED lamp</td><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">30-90 lm/W</td></tr>
<tr style="color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em;"><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">Metal halide lamp</td><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">75-100 lm/W</td></tr>
<tr style="color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em;"><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">High pressure sodium vapor lamp</td><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">85-150 lm/W</td></tr>
<tr style="color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em;"><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">Low pressure sodium vapor lamp</td><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">100-200 lm/W</td></tr>
<tr style="color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em;"><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">Mercury vapor lamp</td><td style="border-collapse: collapse; border: 1px solid rgb(204, 204, 204); color: #222222; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 0.94em; padding: 5px;">35-65 lm/W</td></tr>
</tbody></table>
</div>
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