Crystalline silicon

solutions were dried at 24 hours for 80°C. Then, the dried sample was crushed and sieved to obtain the fine powders. The 1 grams of mixed powder are compacted at 2.5MPa load by using stainless steel mold (13mm). The mold should be clean by using WD40 or silicon spray which act as a lubricant to remove dirt and to remove the sample easily after…

America. Recently, on 1 August 2017, Celgene Corporation and Agios Pharmaceutical in cooperation won the approval for Enasidenib under brand name IdhifaTm for the treatment of relapsed/refractory acute myeloid leukemia. it is a white to off-white crystalline, non hygroscopic powder existing in polymorphic form which is chemically known as 2-methyl-1-((4-(6-(trifluoromethyl)pyridin-2-yl)-6-((2-(trifluoromethyl)pyridin-4-yl)amino)-1,3,5-triazin2-yl)amino)propan-2-ol or…

an aggregate of different minerals or mineraloids. There are over 5,300 known mineral species. The silicate minerals have composed over 90% of the Earth's crust. The diversity and abundance of the mineral species is controlled by the Earth's chemistry. Silicon and oxygen approximately constitute 75% of the Earth's crust, which translates directly into the predominance of the silicate minerals. Our body needs many minerals. These are called essential minerals. Essential minerals are divided up…

Pebble Bed Reactor University of Calgary Fundamentals of Nuclear Energy Najee Elbaroudi James Cody Webber Taylor Donegan Mar 28/16 Abstract One of the most effective ways of converting the natural energy stored in the Earth into usable electricity for everyday life is through the use of nuclear chain reactions created in nuclear reactors. Countries such as China, South Africa and the US have implemented a special kind of reactor to capture the vast amount of energy given off by these…

1.6 TRIBOLOGY The greek word tribo means rubbing (William 1994). It is the science of intermingling of the surfaces which are in sliding and/or rolling motion. In 1996, Tribology was first reported by Jost, England. It has 3 portions. These are A) friction B) Lubrication and C) wear. To understand the tribological behavior, it entails the knowledge of various subjects such as Physics, chemistry, Mathematics, Thermodynamics, Heat Transfer, Material science etc., Tribological problem leads to the…

This is done with solar photovoltaic systems, which directly convert solar energy into electricity. The most established PV technologies are crystalline silicon based systems. They yield high output of electricity but require direct sunlight. Wind energy is converted to electricity through turbines. Turbines capture wind and spin. The spinning blades are connected to an electric generator that produces…

Ice skating is a recreational activity that can also be a part of high level Olympic competition. It seems natural when watching someone on the ice gliding so effortlessly, but why is this possible? They are gliding on a solid surface after all. When thinking about solids, slippery is probably not a common word to associate with. However, in the case of ice this happens to be true. Looking at the properties of states of matter, properties of water, and experiments of water and ice, there is…

Because it is virtually two-dimensional, it interacts oddly with light and with other materials. Researchers have identified the, ballistic transport of charges, bipolar transistor effect and large quantum oscillations.[5] Technically, graphene is a crystalline allotrope of carbon with 2D properties. In graphene, carbon atoms are densely packed in a regular sp2-bonded atomic-scale hexagonal pattern. Graphene can be called as an one atom thick layer of graphite. It is a basic structural element…

The Obelisk’s iconography takes on a geographic scope in its artistic elements as the interaction sphere of Chavin’s civilization sphere entailed the desert coast, humid tropical forests and highlnds, which were three key ecological zones of Peru. The monumental architecture reflected the unique interregional syntesis of Chavin as it is located on a crucial route from the Pacific Coast, through the high pass to the Amazon basin. The obelisk, additionally, was structured in a manner that it…

CHAPTER I INTRODUCTION 1.1 BACKGROUND STUDY Wastewater in the textile , plastic, paper and cosmetics industry is a major threat to the environment. The volume of wastewater produced starts from different processes throughout from the pretreatments to the final treatment. The contents found in the wastewater are complex, having inorganic and organic compound chemicals in it and aquatic lives are at risk. Some of these wastes have even caused mutation in genetic coding of the marine…