LAB MANUAL FOR 5th SEM EEE(POWER ELECTRONICS)

To download power electronics lab manual click here
I am receiving many share requests from you guys so I decided to give you the link which you can share it easily. you do not need to send me share requests and email address due to which you might be feeling vulnerable (Though u didn't need to be worried). But still I feel why should you share your personal data.
Here is the link copy and past the link where ever you wanted to share. You can share by two methods
1. Copy this link and send it to any one. They can download directly from Google docs all they need to do is to sign-in to google. http://docs.google.com/fileview?id=0B4Q76R170IniNDczMzRkNzItNzNkOS00MDAwLWIyNTgtYjU5ZGYzODI1NzY0&hl=en&authkey=CP7NqLwC 
2.  Copy this link of my blog and send it to any  one  they can download as you did. http://shahalam4u.blogspot.com/2010/07/lab-manual-for-5th-sem-eeepower.html
For any other assistance please write to me at s21alam@gmail.com or comment in comment section.

Fourth Property of Electrons? Electric Dipole Moment Would Explain Creation of Universe

ScienceDaily — Electrons are negatively charged elementary particles. They form the shells around atoms and ions. This or something similar is what you will find in text books. Soon, however, this information may have to be supplemented. The reason is that many physicists believe that electrons have a permanent electric dipole moment. An electric dipole moment is usually created when positive and negative charges are spatially separated. Similar to the north and south poles of a magnet, there are two electric poles. In the case of electrons, the situation is much more complicated because electrons should not actually have any spatial dimension. Despite this, an entire range of physical theories that go beyond the standard model of elementary particle physics are based upon the existence of dipole moment. These theories in turn would explain how the universe in the form that we know it could have been created in the first place. According to prevailing theories, the big bang some 13.7 billion years ago would have had to have created just as much matter as antimatter. Since both obliterate each other, nothing would have remained. In reality, however, more matter than antimatter was actually created. An electric dipole moment of the electron could explain this imbalance. Up to now, nobody has successfully proven the existence of this assumed tiny dipole moment. Existing methods are simply not sensitive enough. A small piece of ceramic is set to change this soon. Dr. Marjana Ležaić and Dr. Konstantin Rushchanskii from the Institute of Solid State Physics at Forschungszentrum Jülich and Professor Nicola Spaldin from the University of California in Santa Barbara designed this ceramic, which has very special properties, in a virtual laboratory using the Jülich supercomputer JUROPA. The new europium barium titanate should enable measurements to be 10 times more sensitive than they were in the past. According to the Jülich physicists, "this could be sufficient to find the electric dipole moment of the electron." As electric moment cannot be directly measured, the physicists are working together with scientists from the American Yale University as well as with Czech research institutions in Prague in order to indirectly prove its existence. The researchers in Yale have developed an experimental setup that uses an extremely sensitive SQUID magnetometer to measure the magnetization of the piece of ceramic in an electric field. Their aim is to demonstrate a change in the magnetization when the electric field is reversed. This would simultaneously be the sought-after evidence that the electric dipole moment exists. In an electron, an electric dipole can only ever be oriented parallel or anti-parallel to the electron spin. In an electric field, most of the electrons are oriented so that their dipole moment is parallel to the field. Fewer are oriented in the other direction. This should lead to a measurable magnetization. If the electric field is reversed, the dipole moments of the electrons are reversed leading consequently to a simultaneous, measurable change in the magnetization. Without an electric dipole moment, on the other hand, the magnetization would remain unchanged. "It would have been very difficult to find such a well-suited material by trial and error," said Ležaić. This material must have an unusual combination of properties: a high concentration of magnetic ions, magnetic disorder at temperatures below four degrees Kelvin and a reversible electric polarization. "Our colleagues in Yale who came up with the idea of the measurements and conducted them had already tested different materials. However, a new material with all of the necessary properties can be found faster with the use of theoretical analysis and computer simulations." Ležaić, as the head of the young investigators group, her group member Rushchanskii, and her cooperation partner Spaldin virtually synthesized and analysed europium barium titanate on the supercomputer in Jülich. To do so, all they needed was its chemical composition and the basic equations of quantum mechanics. From these, they calculated the interaction between individual atoms and electrons and the local magnetic properties. So it was that they found the optimum ceramic. Team colleagues in Prague have already synthesized and characterized the material in the laboratory and confirmed the properties calculated in Jülich. Only the sought-after dipole moment of the electron remains undiscovered. "Unwanted effects are still inhibiting the measurements," said a disappointed Ležaić. "But we're working intensively on improving the material even further."

SOLUTION OF DATA STRUCTURE(2010)

hi guys i have the soft copy of the solution of the DATA STRUCTURE so if you want to download then press the link below and don't forget to comment.

Download the data structure solution

if you have any material related to subject or what ever if it is knowledgeable then send it to me i'll share to all of you with your name (if you want) then mail to me(s21alam@gmail.com)

EM lab twisted questions and answers

hi guys i have twisted question and answer wanna download then click here

QUESTION BANK FOR ALL BRANCHES

Hi guys shah is here i have the new question bank for all branches(2010 edited/latest) so if u r interested then

click here to download & yes don't forget to comment I like to know who uses my blog. No second names required.

Thanks

BASIC ELECTRONICS

Hi guys if you want to learn basic electronics then i have a address where you can learn online

basic electroncs concepts u just need to click here this link.

If u want to visit your personal digital libarary then no need to think jusk click here

I like to know who uses my Ebook. No second names required.

WHY I MADE THIS BLOG

hi guys myself shah

well i m a student of electrical and engineering in avit Chennai.

I saw each and every student of my college is using laptop almost of them are using it for entertainment or chatting purpose.somewhat using for study purpose since they don't have proper and sufficient soft material for respected subjects.if you compare to other top institutions where each and every thing depends upon soft materials only.except calculation.....even if u see in India's top 2and 3 institutions there is no need of write any thing on paper.which makes them advanced because they are saving very much time while doing this and they can use this time in to lab work and etc.....

If u feeling that it is tough to get soft copies of hard material so u do not be worry i m standing here to solve your problem.

I m just trying to make things easier i mean if u need any kind of soft material related to you studies you only need to visit my blog and check out which material is suited for you n Ur subject.

and one more thing I'd like to say if you feel that you need different thing other than given topic material.then you just comment what you want or write me mail on given email address below.

s21alam@gmail.com

THANKS