snacks

mind map

mind map snacks

cohort 4 presentation

photos

ppt

Semiconductors

A semiconductor is a material that has an electrical resistivity between that of a conductor and an insulator. An external electrical field changes a semiconductor's resistivity. Devices made from semiconductor materials are the foundation of modern electronics, including radio, computers, telephones, and many other devices. Semiconductor devices include the transistor, solar cells, many kinds of diodes including the light-emitting diode, the silicon controlled rectifier, and digital and analog integrated circuits. Solar photovoltaic panels are large semiconductor devices that directly convert light energy into electrical energy. In a metallic conductor, current is carried by the flow of electrons. In semiconductors, current can be carried either by the flow of electrons or by the flow of positively-charged "holes" in the electron structure of the material.

Silicon is used to create most semiconductors commercially. Dozens of other materials are used, including germanium, gallium arsenide, and silicon carbide. A pure semiconductor is often called an “intrinsic” semiconductor. The conductivity, or ability to conduct, of semiconductor material can be drastically changed by adding other elements, called “impurities” to the melted intrinsic material and then allowing the melt to solidify into a new and different crystal. This process is called "doping".

C(programming language)

C is a general-purpose computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system.

Although C was designed for implementing system software, it is also widely used for developing portable application software.

C is one of the most popular programming languages. It is widely used on many different software platforms, and there are few computer architectures for which a C compiler does not exist. C has greatly influenced many other popular programming languages, most notably C++, which originally began as an extension to C.

gaol for english class

long term goal - I wanted to speak English fluently
short term goal- to learn grammar
course of action - while speaking, i will practice the correct usage of grammar quickly
difficulties- I always talk less. by this, it is difficult to talk fluent english.

my account

this is my wetpaint account

Painting

Painting as an art form has flourished in India from very early periods as is evident from literary sources and also from the remnants that have been discovered. Numerous paintings or Patas are mentioned in the Mudrakshaka. There are isolated paintings like the Yama-pata; isolated framed drawings like Cauka-patas and the Dighala-patas or long scroll of paintings, representing a complete legend. In another book Vishnudharmottara, the section Chitrasutra describes the basic tenets of painting. According to this treatise, the six limbs of painting are: variety of form, proportion, infusion of emotions, creation of luster and iridescence, portrayal of likeness and colour mixing to produce the effect of modeling. The Vinayapitaka (3-4 century BC) describes the existence of painted figures in many royal buildings.

Paintings and drawings of animals dating back to prehistoric times have been found in the Bhimbetka caves in Madhya Pradesh. The Mesolithic paintings of Narsingarh ( M.P.) show skins of spotted deer left drying which indicate that man has acquired the art of tanning skins for clothing and shelter. In the paintings of these period musical instruments like the harp figure to show that the awareness of creation of sound and the concept of rhythm had appeared. The paintings of the Mesolithic period contain geometric forms like the spiral, square, circle and rhomboid. A painting from Joanna (M.P.) shows a square divided by vertical lines into compartments.

Phase Change Materials

Phase Change Materials, commonly referred to as PCMs, are products that store and release thermal energy during the processes of melting and freezing. Phase Change Materials release large amounts of energy upon freezing in the form of latent heat but absorb equal amounts of energy from the immediate environment upon melting. This enables thermal energy storage; heat or coolness being stored from one process or period of time and used at a later point in time or transferred to a different location. PCMs can also be used to provide thermal barriers or insulation, particularly useful for industry sectors such as temperature-controlled transport.

Interestingly, the simplest, cheapest and most effective Phase Change Material is water/ice. Unfortunately, its freezing point of 0°C (+32°F) precludes it from the majority of energy storage applications. However, a number of alternative Phase Change Materials have been identified and developed that freeze and melt like water/ice, but at temperatures from the cryogenic range to several hundred degrees centigrade.

Nanotechnology

Nanotechnology - the science of the miniature, and the technology of the future - is one of the most exciting and wide area of research which may lead to the greatest technological advances of the 21st century. It is a global phenomenon and an emerging field, that finds its way into a myriad of industrial applications spanning across all areas of science and technology. A form of molecular engineering, it is the technology associated with the creation and scrutiny of minute objects, measuring between 1 to 100 nanometers. Nanotechnology can be defined as the application of science, engineering and technology to develop novel materials and devices in different fields in the nano-range.

study

shilpA I AM studying in

ನಮಸ್ತೆ .
ನಾನು ಶಿಲ್ಪ. ನಾನು ಇಂಗ್ಲಿಷ್ ಅನ್ನು ಕನ್ನಡದಲ್ಲಿ ಬರೆಯುತಿದ್ದೇನೆ. ಇದು ನನಗೆ ಹೊಸ ಅನುಭವ ಆಗುತ್ತಿದೆ. ನನಗೆ ಏನು ಬರೆಯಬೇಕೆಂದು ತಿಳಿಯುತ್ತಿಲ್ಲ. ಆದರು ಬರೆಯುತ್ತಿದ್ದೇನೆ .

shilpa

hi

yahoo

About myself

I am Shilpa. R , I did my engineering in textile technology in Bangalore on 2008. I am basically from Tumkur. Now I am doing training in Deshpande foundation Program