Indium

The screen would be made of ITO (indium tin oxide), the same material used to manufacture the touchscreens of Apple iPhones and a majority of touchscreen products [1]. While the material itself is relatively expensive, the resulting touchscreen is extremely responsive. If the device is…

The substrate is rotated in the center of the growth chamber to ensure even growth on its surface and its angle can be manipulated depending on which effusion chamber shutter is opened. The time the substrate is exposed to an effusion chamber is calculated. Based on the area of the substrate, the pressure in the chamber and the molecular weight of the species, the shutter time is calculated to ensure the desired thickness of the film which will be adsorbed on to the substrate. For example, when…

Statement of Purpose My decision to obtain a PhD degree is inspired by the desire to combine my creativity with specialized knowledge to invent and enhance technology for this ever changing world. I am confident that a PhD degree from the Department of Electrical, Computer and Energy Engineering at the University of Colorado Boulder will serve as a link between the potential and this career goal of mine. My passion to study engineering grew when I got GPA 5 out of 5 in the Secondary School…

ABSTRACT In this work, a new flexible and transparent substrate with the help of organic materials such as Polydimethylsiloxane (PDMS) and Tetra ethoxy orthosilicate (TEOS) is synthesized. Transmittance of about 90-95 % is obtained in the visible region (400-700 nm) and the synthesized substrate show better thermal characteristics and withstands temperature upto 200 oC without any significant degradation. Characteristics such as transmittance (T), absorption (A), refractive index…

Gallium is one of those elements that is used in industry every day. Gallium was discovered in Paris at the private laboratory of Paul-Emile Lecoq de Boisbaudran (1831-1912) at 3 a.m. on August, 1875. He observed a new violet line in the atomic spectrum of some zinc he had extracted from a sample of zinc blende ore (ZnS) from the Pyrenees. He knew it meant that an unknown element was present. Gallium comes from Gallia, the Latin name for France. Gallium also has origins in the Latin word Gallus.…

ABSTRACT Solubility is the phenomenon of dissolution of solid in liquid phase to give a homogenous system.Solubility is one of the important parameter to achieve desired concentration of drug in systemic circulation for pharmacological response to be shown. Poor watersolubledrugs often require high doses in order to reach therapeutic plasma concentrations after oral administration. Low aqueoussolubility is the major problem encountered with formulation development of new chemical entities. Any…

Introduction: What is Touch Screen Technology? Touch screen provides a direct, interactive gesture based communication technology. A Touch screen is an electronic based optic display, able to detect and locate the touch around the display area. The touch screen technology allows a direct interaction with the display screen by a simple touch instead of the ordinary mouse, joystick or touchpads. The touch screen enables direct manipulation. Direct manipulation means, a user can directly or…

Content Stoichiometry is the relationship of the masses of the reactants and products in a chemical reaction. For a given mass of a substance in a reaction, the mass of any other substance in the reaction can be obtained using the coefficients of the balanced chemical equations and the molar masses of the substances involved. The amounts obtainable from a balanced chemical equation are called stoichiometric amounts (Villamar Jr., 2004). As what was said in the introduction, the first topic that…

Figure 21: Dependence of the penetration depth on dwell times for different indentation peak loads Figure 22: Dependence of the penetration depth on dwell time for different indentation peak loads in ln-ln plot 5.4 HV vs. penetration depth Figure 23 shows the dependence of the Vickers hardness on the indenter penetration depth for 100mN to 1000mN and 10 s to 60 s dwelling time. The highest hardness value is 15.6GPa. As the indenter penetration depth increases, the hardness value decreases.…

As stated in the article “A Path to Sustainable Energy by 2030,” the three main sources of renewable energy are technologies that consist of zero-emissions of greenhouse gases and air pollutants of their entire life cycle (Jacobson, 87). Of course there are several renewable energy sources, but the three main resources listed in the article are wind, water and sunlight (WWS). To this day, wind supplies up to 51% of the energy demand with about 3.8 million wind turbines installed (Jacobson, 88).…