Lab Report: Hand warmer
Thesis - 8 pages - Physics
Various chemicals were tested for use in a hot pack, and calcium chloride was found to be the most desirable. A very cheap and effective hot pack design was made from a Ziploc bag and duct tape, which insulates the pack and helps keep it warm for longer. Another type of bag, a breakable...
Report: Pottery Glaze
Thesis - 6 pages - Physics
A combination of research and laboratory experimenting were used to determine which of the four suggested compounds was most suitable for a ceramic pottery glaze. The melting and boiling points of the compounds were researched, and the color of crystal and solution, conductivity, and solubility...
Report: Pest Eliminator
Thesis - 5 pages - Physics
Spectrophotometry and a Beer's Law plot were applied to determine the concentration of a solution of chromium(III) nitrate with unknown concentration supplied by the company Pest Eliminator. A quadratic data set was re-expressed into a linear data set, which was then analyzed with a linear model;...
Report: Mercury in Fluorescent Lights
Thesis - 3 pages - Physics
Fluorescent lights in the Westford Academy science wing were checked for the presence of mercury. A spectrometer was used instead of a physical means, since this is the most economical and efficient solution. The wavelengths of the lines seen when the spectroscopes were pointed at the desired...
Metaphysics- Is water necessarily identical to H2O?: An argument
Thesis - 5 pages - Physics
Kripke holds that the declaration “water is identical to H2O” is necessarily true. According to Kripke, this true statement is only knowable through experience (a posteriori), and cannot be determined by definitions of words only. Even though it is only a posteriori, Kripke claims that...
Principal causes of atmospheric motion
Thesis - 3 pages - Physics
All parts of the atmosphere does not receive energy in a homogeneous manner. This difference leads to air motion following the principle that warm air is likely to reach high altitudes due to its low density compared to cool air. The difference in temperature and pressure is one of the key points...
Measurement analysis: Experiment
Thesis - 2 pages - Physics
In this experiment, we use basic equipments such as ruler, scale and stop watch to make measurements of length, mass and time. In the first investigation, we make measurements to obtain values for derived quantities, such as the density of the cylinders. In the second investigation, we measure...
The alkaline electric battery
Thesis - 4 pages - Physics
The material in the anode of the alkaline battery is a zinc metal powder. Its production is carefully monitored to ensure its chemical purity and accurate particle size. These provide a surface quality which enhances the reaction of the battery. Indeed, a good quality surface enables contact with...
Sir Isaac Newton: Life, discoveries and the laws of motion
Thesis - 5 pages - Physics
Sir Isaac Newton laid the foundation of modern physics in the late seventeenth century. He described in mathematical terms, the fall and the movement of the body and defined the three fundamental laws of universal gravity. He also developed the calculus, pioneered important work in optics,...
Recrystallization and melting point experiment
Thesis - 2 pages - Physics
In this experiment, we purified an unknown substance by recrystallizing it. Then, we determined the unknown substance's melting point and then confirm its identity by mixing with o-Toluic acid, Acetanilide, Benzoic acid, P-Toluene sulfonamide and Salicylic acid. There are certain dangers and...
Boiling point determination experiment
Thesis - 2 pages - Physics
In this experiment, we investigated a physical property called the boiling point. The objective of our experiment is to measure the boiling point of an unknown liquid by using only a small amount of that liquid, and then we compare the boiling point to the boiling points of the three liquids:...
Einstein and the evolution of physics
Thesis - 2 pages - Physics
In this paper, we will try to understand in brief the physical concepts by Einstein and the basics of their creation and operation. At the forefront, Einstein dismisses the notion that science and ideas are the perfect reflection of reality. Physical concepts are creations of the human mind which...
Caps and their influence on wine
Thesis - 7 pages - Physics
The cap is a cylindrical piece usually used as bottle stoppers. Historically, it was used by the Greeks and Romans to seal jars. Despite its history, the cap disappeared for over a thousand years and reappeared in the late nineteenth century in the form of cork. Today bottle caps are made of...
Manufacturing process of optical fiber
Thesis - 5 pages - Physics
The initial studies in optical networking were undertaken in the 1970's. It was discovered that a glass fiber encased in an opaque sheath was capable of transmitting data at a speed higher than that of light. The optical fiber is thus one of the greatest technological advances in the area of...
Acidosis, alkalosis and genetics
Thesis - 3 pages - Physics
These two terms are used to describe the unusual conditions when a patient's blood pH is not within its healthy range. It measures how acidic the blood is. It is normal for pH to fall between 7.35- 7.45 as this will make sure that metabolic processes function properly. There are situations...
Experiment: Computational chemistry lab
Thesis - 5 pages - Physics
Using AM1 and ZINDO molecular modeling, we calculated the excitations energies of four thiacyanine dyes DTC, DTCC, DTDC, DTTC to be 430nm, 485nm, 544nm, and 600nm. Using UV?Visible Absorption Spectroscopy, in a previous lab we determined that the absorption wavelengths were 422nm, 544nm, 655nm,...
Experiment: Magnetic susceptibility measurements of solids lab
Thesis - 4 pages - Physics
Nine of a possible eleven solid complexes were tested for magnetic properties using a magnetic susceptibility balance. From this data, the number of unpaired electrons were calculated using an estimate value of ?(1+ ?eff2)-1. These experimental numbers were compared to the calculated number of...
Atomic force microscopy lab: An experiment
Thesis - 5 pages - Physics
Atomic Force Microscopy (AFM) methods were used to characterize two samples in two different modes. Contact mode was used to characterize a zinc oxide sample and tapping mode was used to characterize a grating sample. The distance between the grating lines was calculated to be 1.173?m. The two...
Aristotle on physics: Chance and causes
Thesis - 2 pages - Physics
Aristotle's view of Physics seems to emerge out of the primary question of “Why?” Similarly, “Why do things; does anything happen?” I'm aiming to direct my paper more to the philosophy of “chance”, however to reach that aspect I must first identify the other...
The synthesis of tert-pentyl chloride
Thesis - 3 pages - Physics
Synthesis of new compounds serves important practical purposes. The pharmaceutical industry continuously seeks and develops new compounds as potential drugs for treating disease. The agricultural industry also relies on synthesis to produce new organic chemicals for weed, pest, and fungi control....
Sorption and desorption of chromium in bentonite and kaolinite mixtures
Thesis - 6 pages - Physics
Chromium sorption in soil occurs under different conditions based on the oxidative state of the Cr ion. Variety of factors is influencing the sorption of Cationic Cr III in sub surface environments. In this study, sorption of Cr III has been studied in mixtures of different percentages of...
Fibers and their importance
Thesis - 4 pages - Physics
Communication is the key to the existence of mankind. In the field of telecommunication, the horizons are constantly expanding. In this regard, the optical fiber is a wonder tool in the field of telecommunication. We are aware of the fact that light has a tendency to spread in a straight line,...
FMS layout optimization using metaheuristic
Thesis - 6 pages - Physics
Today, Flexible Manufacturing System (FMS) seems to be a very promising technology as it provides flexibility, which is essential for highly competitive, dynamic and change in manufacturing environment. Layout of an industry is the key for productivity. To improve productivity, manufacturing lead...
Local short term wind speed estimation using back propagation algorithm
Thesis - 14 pages - Physics
Apart from weather forecasting, wind speed prediction is required to estimate atmospheric effects on telecommunication systems such as satellites in launch, electromagnetic signal propagation in wireless channel, inland and water vehicle navigation, air traffic control, missile guidance etc. Wind...
Water distribution system optimization using Tabu search
Thesis - 4 pages - Physics
Water distribution systems are complex interconnected networks that require extensive planning and maintenance to ensure the required quantity of water is delivered at the required demand nodes. Good maintenance practices can extend the life of water distribution system components and optimal...
An adaptive incremental fuzzy controller for output voltage regulation of boost converters
Thesis - 5 pages - Physics
In this paper an adaptive incremental fuzzy controller (IFC) for output voltage regulation (OVR) in DC-DC boost converters is proposed. The method, first determines a base duty cycle (BDC) for nominal system parameters and voltage regulation specifications, to which, fractional duty cycle...
Deploy robust data transmission over the noisy channel
Thesis - 2 pages - Physics
The secret data is encrypted and permutated using the chaos method. Experiments show the good quality of the stego-image and resistant against the various noise attacks (Like Salt and Pepper). At the same time, the proposed algorithm exhibits good encryption speed, less computations and excellent...
Adopting dynamic self tuning fuzzy worked on output voltage regulation of DC-DC buck converters
Thesis - 4 pages - Physics
In this paper a dynamic self tuning fuzzy controller scheme is proposed for output voltage regulation of DC-DC Buck Converters and is verified by means of simulation. The proposed fuzzy controller scheme adapts the scale factor of its output variable depending on the continuous measurement of...
Preparation and analytical investigation of electrodeposited nickel aluminum oxide composite coatings
Thesis - 11 pages - Physics
Composite coating methods play a major role in enhancing the life of the components by improving the wear resistance of the surface coating used. Electrodeposited composite coatings consist of a metal matrix with either a ceramic or cermets particle addition which represents the new development...
Vendor selection under uncertainty
Thesis - 6 pages - Physics
Vendor selection is of strategic importance to companies. This paper uses fuzzy tools for vendor selection to improve decision-making (DM) through a more systematic and logical approach. Expert opinion is portrayed by allocating different fuzzy weights to the linguistic data in the form of...
