Clay Loading and Dispersion Effects on the Rheological Properties of Unsaturated Polyester Nanocomposites Tony Nguyen (Mentor: Abbas A. Zaman‚ College of Engineering) ABSTRACT The objective of this work is to characterize the influence of clay loading and dispersion effects on the rheological properties of unsaturated polyester composites. Toughened unsaturated polyester (UPE) composites were synthesized by the blending of delaminated clay with unsaturated polyester. Rheological behavior is
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resonances enhanced absorption efficiency. Towards this goal‚ we present a study of the light absorption in single Si nanowires‚ by means of microphotocurrent spectroscopy combined with transport measurements of carrier diffusion length using the electron beam induced current technique. The study is performed on different diameter nanowires with Schottky junctions created by doping modulation during Chemical Vapor Deposition–Vapor Liquid Solid growth. We show that the photocurrent spectra of single
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the microscope. One of the first to use a microscope to observe microorganisms was Robert Hooke‚ the English biologist who observed algae and fungi in the 1660s. In the 1670s‚ “Anton van Leeuwenhoek‚ a Dutch merchant‚ constructed a number of simple microscopes and observed details of numerous forms of protozoa‚ fungi‚ and bacteria” (Introduction to Microscopes‚ n.d.). During the 1700s‚ microscopes were used to further explore on the microbial world‚ and by the late 1800s‚ the light microscope had
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The remains of ancient plants can provide a wealth of archaeological information about a site‚ with many methods being available to the archaeologist engaged in extracting this data. Perhaps one of the most widely-known of these techniques‚ possibly because of its attractive nature‚ is pollen analysis - a technique developed in the early years of the twentieth century by‚ like so many archaeological techniques‚ a geologist -- the Norwegian Lennart van Post. To understand the technique and the uses
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microorganisms Most microorganisms are pathogenicFalse The majority of bacteria are harmless True Total number of bacterial species: about 10 million to a billion What is a microorganism? An organism or virus too small to be seen without a microscope. (Smaller than 0.5 mm) Ex: Bacteria‚ Fungi‚ Protozoa‚ Algae‚ and Viruses Microbiom: collection of microbes Human cells vs. Microbial cells = 1:10 Which statement about Michaelangelo is not correct? A. He was an Italian sculptor‚ painter
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Module Twelve: Text Questions Review Questions 1. What is a comparison microscope? What are the advantages of this microscope? A comparison microscope is a microscope that has 2 lenses that can magnify up to 1‚5oox. An advantage is that it able to magnify items more than regular comon microscopes. 2. What are the three substances that generally make up paint? Describe each part. Pigments- organic and nonorganic compounds & materials added to paint to produce a color. Binders-
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Biology Report About TEM & SEM There are two types of electron microscopes‚ a Transmission electron microscope (TEM) and a scanning electron microscope (SEM)‚ which both work in different .ways‚ at different magnifications/ In a transmission electron microscope‚ the electron beam passes through a very thin prepared sample. The electrons pass through the denser parts of the sample less easily‚ which gives some contrast. The final image produced from a TEM is two-dimensional. The magnification
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The microscope is considered one of the most useful and important scientific inventions known to ’man’. The microscope was invented by Anton van Leeuwenhoek during the seventeenth century. Leeuwenhoek was not a scientist by profession. Initally he made a living selling clothes and buttons‚ but spent his spare time grinding lenses and constructing microscopes of remarkable quality‚ such as the light microscope. The light microscope could magnify cells‚ for instance in plants so you could see a clearer
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A microscope (from the Ancient Greek: μικρός‚ mikrós‚ "small" and σκοπεῖν‚ skopeîn‚ "to look" or "see") is an instrument used to see objects that are too small for the naked eye. The science of investigating small objects using such an instrument is called microscopy.Microscopic means invisible to the eye unless aided by a microscope. There are many types of microscopes‚ the most common and first to be invented is theoptical microscope which uses light to image the sample. Other major types of microscopes
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outstanding and best preserved of the decorated chapels are named ‘Chapel of the Exodus’ and ‘Chapel of Peace’. Raman spectra were recorded in the near infra red excitation line (785 nm) using a Renishaw InVia Raman spectrometer. A Leica polarized microscope
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