Transmittance

Abstract: A one dimensional variable range hopping type conduction is observed in Poly (3,4-ethylenedioxythiophene): polystyrenesulfonate (PEDOT : PSS) films and the mechanism behind enhancement in conductivity in 3% dimethyle sulfoxide (DMSO) doped PEDOT:PSS film is due to the phase segregation of PSS on the surface and reduction of energy barrier between the conducting grains. Enhanced conductivity of PEDOT:PSS films and transparency more than 80% in the visible region makes PEDOT:PSS films…

Section # 003 BIOL 130L (B2 149) Tuesday (9:30am -12:20pm) Date of Experiment: 21/10/2014 INTRODUCTION The purpose of spectroscopy is to observe the relationship between substances in a solvent, and the associated absorbance and transmittance through a range of concentrations (Lothian & Twyman, 1969). However, one must understand the underlying principles of the electromagnetic spectrum in order to analyze the results of the techniques used in this experiment. When one…

Three main manufacturing processes exist; formative, subtractive and additive processes. These manufacturing processes can be divided by the type of action or actions required to produce the final part. Formative processes form the material into the desired shape, either by using dies or moulds. Examples of formative processes are stamping, forging, drawing, rolling or extruding. Subtractive processes on the other hand remove layers of material to form the final part. Turning, milling, grinding,…

type of photocatalyst. Photocatalyst film can be deposited on various substrate such as alumina [5], metal foil [6], silicon wafer [7,8], and glass [9,10]. Among these substrates, the glass can be advantageous in various fields owing its high transmittance and chemical stability. The glass coated with photocatalyst…

The purpose of this lab is to determine the Ka of an indicator within an unknown solution. This can be determined because acid-base indicators are weak bases or acids, and when neutralized they change colors. The color change is measured by the light absorption spectra in the compound which can be used to calculate the concentration. This experiment measures the concentrations by the different pH values which allows the pKa and Ka to be determined. Through the experiment, and the recorded color…

Enzymes are macromolecules that act as a catalyst in order for chemical reactions to occur. Their function is highly dependent on what the structure of the enzyme because they have things called active sites that recognize specific substrates. A substrate is a molecule that fits into the active sites of enzymes so a reaction can occur. For example, sucrose (substrate) fits into sucrase (enzyme) where hydrolysis occurs consequently splitting sucrose into glucose and fructose. However, in our…

Intelligence. Communication Intelligence (COMINT) was the most common source of intelligence used in the Battle of Midway. Morse code was the primary transmittance of intelligence for both sides (A&E Networks, 2014). Neither side had an advantage in the equipment, but the US Commanders trusted the intelligence more. The US utilized decrypted Japanese radio intercepts to gain the advantage during the battle (A&E Networks, 2014). US Navy cryptanalysts had begun breaking Japanese communication…

treatments when looking at spinach. The same spinach plant was tested under different light environments (no light, white light, red light and green light). A control cuvette was used to compare the rate of photosynthesis to those of the color transmittance cuvette. Before collecting the data we learned about plants and light absorption. We learned the reason why plants are green is because it emits green color and the other transmitted colors are absorbed by the plant. Using our new information…

Macroevolution Paper Interviewing two subjects with different backgrounds was my part in this larger class project. I choose to interview a boy and a girl from the same age but different backgrounds in order to understand how microevolution works between them. I choose to interview a girl from my class that is also in my age group and the boy is a close relative and friend who is also the same age, I wanted to interview him because we share similar beliefs. In this interview I will determine how…

In the 21st century, a letter can be sent through email virtually to people half way across the world in a matter of seconds, a virus can travel just as fast and just as far. A virus is an infective agent that is able to multiply within the living cells of a host, often creating diseases. The Zika virus is a famous mosquito borne virus transmitted by physical contact with the mosquito. In this day and age, Zika Virus is spreading from country to country, bringing each nation to its knees with…