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Relevant bibliographies by topics / CHEMICAL TECHNIQUE

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Dissertations / Theses

Academic literature on the topic 'CHEMICAL TECHNIQUE'

Author: Grafiati

Published: 11 September 2023

Last updated: 16 April 2024

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Dissertations / Theses on the topic "CHEMICAL TECHNIQUE"

1

Wang, Chuangnan. "Ultrasonic technique for chemical process control." Thesis, University of Strathclyde, 2014. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=24442.

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Ultrasound has found application in chemical processing control using both low power, high frequency monitoring techniques and high power, low frequency process enhancement approaches. In many cases, standard ultrasonic systems are retrofitted to a process and while these produce efficiency improvements, the design of bespoke systems may offer more potential. In particular, this Thesis has considered two techniques used in the biomedical field; harmonic imaging and high intensity focused ultrasound (HIFU) and has translated these into ultrasonic transducers for use in an industrial process con

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2

Loehn, Clayton William. "Investigation of the monazite chemical dating technique." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/27688.

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In order to evaluate the electron microprobe (EMP) method for chemical dating of monazite, we chemically analyzed selected suites of monazite grains that were previously dated by standard U/Pb isotopic methods at three laboratories each equipped with a sensitive high resolution ion microprobe (SHRIMP). Representing diverse igneous and metamorphic lithologies, these grains yielded conventional isotopic ages ranging in age from Neoarchean to Devonian. Chemical dating was performed at Virginia Tech using a Cameca SX-50 EMP in which the analytical routines and settings were specifically optimized

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3

Hsu, Ching-Ming. "High resolution SIMS analysis using a chemical bevelling technique." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243823.

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4

Zenaitis, Michael G. (Michael Guy). "Antibiotic production using the self-cycling fermentation technique." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=68061.

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The self-cycling fermentation (SCF) technique was used to grow three species of the genus Streptomyces which have been described as producing antibiotics. Application of this technique led to reproducible growth patterns for filamentous organisms. Control of the system using the CO$ sb2$ concentration in the off-gas was achieved under conditions which prevented monitoring of the dissolved oxygen. It was also possible to use the SCF system with either defined or complex media.<br>Production of tetracycline by S. aureofaciens was obtained on an iron-deficient medium. The production rate was as h

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5

Wentworth, Stephen. "Citric acid production using the self-cycling fermentation technique." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=68057.

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Self-cycling fermentation is a new technique used to cultivate synchronous populations of cells. This work used the technique in the production of citric acid from a strain of Candida lipolytica. Application of this technique resulted in extremely stable, reproducible patterns of growth and induced a high level of cell synchrony. Synchrony was maintained even throughout long periods of extended nutrient starvation. Thus, self-cycling fermentations can be operated with cycle times significantly longer than the doubling time of the microorganism. Use of this technique led to a full order of magn

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6

Truter, Lara. "Development of a zeolite washcoating technique for microchannel reactors." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/10855.

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Microreactor technology is becoming an increasingly active research field in terms of chemical reaction engineering and process intensification. An important feature of microreactor technology is the requirement of a catalyst layer.

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7

Vadhwana, V. A. "A model simplification technique for computer flowsheeting." Thesis, London South Bank University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382822.

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8

Arayarat, Pornthip. "Refractory products based on the pore reduced cement technique." Thesis, University of Aberdeen, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245256.

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The present study was aimed at an investigation of the use of the pore reduced cement (PRC) technique on the fabrication and properties of calcium aluminate-based refractories. Physical and chemical performances were compared with those of conventionally prepared (unpressed) refractory castables. The influence of firing on two types of calcium aluminate cements; (Ciment Fondu and Secar 80), mixed with aggregates such as firebrick and alpha-alumina, were observed. Most of the pressed samples based on Ciment Fondu cracked and melted during firing to 1250<sup>o</sup>C. Pressed samples based on Se

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9

Wener, Evan. "The biomechanics of ascending aortic aneurysms: The effect of measurement technique." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=117062.

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An ascending aortic aneurysm is a pathologic enlargement of the ascending portion of the aorta. Comorbidities of dilation include aortic valve disease and connective tissue disorders. If the ascending aorta exceeds a threshold diameter, open heart surgery is recommended. This is a traumatic procedure and the recovery is demanding. As our population ages and with improved technologies to diagnose the disease, the number of cases will increase every year. Understanding the mechanics of ascending aortic tissue will help cardiac surgeons make timely decisions on when to intervene. There are many

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10

Tontiwachwuthikul, Paitoon. "New pilot plant technique for designing gas absorbers with chemical reactions." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/32182.

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Gas absorption with chemical reaction is an important unit operation in the chemical and petroleum industries for the selective removal of components from industrial gas streams. Apart from choosing absorption media, the most difficult problems facing the design engineer are the sizing and performance prediction of the absorption tower due to the scarcity of fundamental design data, especially when novel absorption media and/or packings are used. The solubility of carbon dioxide in 2 and 3 M solutions of 2-amino-2-methyl-1-propanol (AMP), which is a newly introduced absorbent, was determined

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