Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 920 for “"Experimental work"”.
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Computer modeling and experimental work on the astrobiological implications of the martian subsurface ionising radiation environment
… and primary radiation spectra. Microbiological work has been conducted to isolate novel cold-tolerant bacterial strains from the Dry Valleys environment of Antarctica, an analogue site to the martian surface, and determine their phylogenetic diversity and survival under high-dose gamma-ray …
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Experimental work with bait traps for the control of the codling moth, Carpocapsa pomonella, and the oriental fruit moth, Grapholitha molesta
Best results were obtained with syrup baits when diluted 1 part syrup to 20 parts of water. Tin traps were most satisfactory when painted inside and out with aluminum paint. A syrup bait was effective for an average of 5 weeks without change when water was added after the first two weeks. The cost …
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The Influence of Starter on the Keeping Quality of Butter
… product of the dairy industry. Therefore, experimental work which indicates how the quality of butter may be improved is of considerable value. The present methods of handling cream and making butter are largely responsible for the mediocre quality of much of the American butter. The …
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A Burn Ratio That Predicts the Relative Extent of Combustion in Metallic Materials.
The objective of this work was to gain an understanding of the severity of combustion of metals in oxygen environments. Fires have occurred in oxygen compressors, pipelines, valves and storage tanks. A thermodynamic burn ratio is proposed that predicts the severity of combustion of metals in oxygen …
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Optimization of a Terahertz Radiator
… element of the system. Building upon published experimental work a simulation based approach is developed that duplicates experimental work. Next, this simulation setup is used with a new proposed design methodology is used to develop the primary radiators. A structure intended to be used with a …
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Analysis of the conform process: a specific form of aluminium extrusion.
… of the thermo-mechanical behaviour of the workpiece during extrusion. Furthermore, for the aluminium industry, there are still issues remaining regarding the production of flash and the quality of the extrudate in terms of mechanical properties. This study provides the reader with the …
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Ultrafast Optical Spectroscopy Techniques applied to colloidal nanocrystals
In this thesis I will describe my experimental work based on ultrafast optical spectroscopy techniques applied to colloidal nanocrystals. Colloidal semiconductor nanocrystals in recent years have attracted a lot of attention in particular in optoelectronic applications, because they present unique …
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Recovery of Poly (Ethylene Terephthalate) From used X-Ray Film
The thesis describes experimental work to remove primary contaminants viz silver and poly (vinylidene)chloride (PVDC) coating, from X-ray film and subsequent recovery of poly (ethylene) terephthalate (PET) economically.<br/><br/>The thesis commences with a review of the literature, concerning the …
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Hormonální profil u mužů s lokalizovaným a lokálně pokročilým karcinomem prostaty
… influence prostate tissue. Includes a total of 4 experimental work dealing with hormonal environment in men with prostate cancer and benign prostatic hyperplasia.
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The geiger counter
Experimental work was done to determine a satisfactory method of making counters to be used in future research work, to develop a means of testing them, and to find a counter circuit which could be used in connection with this work and for demonstration work.
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Modelling the structural behaviour of the fold-away shelter
… finite element models (FEM) supplemented the experimental work. An FEM of the corner metal bracket and a 2-dimensional FEM for the timber-framed shear wall were generated and verified from the experimental work. Behavioural responses from unidirectional lateral loading of the wall were …
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Firearms discharge residues
… summarise the available knowledge prior to the experimental work and to provide useful background information for chemists, with little or no understanding of firearms, who are required to undertake the chemical aspects of firearms casework examination. Chapter 1 provides a much condensed …
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Interference of onion growth by green foxtail (Setaria viridis(L.) Beauv.)
Very little experimental work was done in Saskatchewan before 1971 on the use of herbicides for weed control in irrigated vegetable crops. In 1970 a 2-acre demonstration block at Outlook, Saskatchewan revealed that onions (Allium cepa L.) would perform well in this area under irrigated conditions
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Exercise and the heart : effects of exercise training on coronary artery disease and on myocardial function, metabolism and vulnerability to ventricular fibrillation
There is epidemiological and experimental evidence suggesting that exercise training may reduce the mortality rate from coronary heart disease, in particular the sudden death rate, and that it may improve the peak functional capacity of the heart. This thesis includes experimental work that is …
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LOCSET phase locking : operation, diagnostics, and applications
… dissertation is to discuss the theoretical and experimental work recently done with the Locking of Optical Coherence via Single-detector Electronic-frequency Tagging (LOCSET) phase locking technique developed and employed here are AFRL. The primary objectives of this effort are to detail the …
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The behaviour of steel fibre reinforced concrete material and its effect on impact resistance of slabs
… at different volume fraction of the fibers. Experimental work is conducted for this research to obtain results on the behaviour of SFRC. The experimental work consists of testing concrete under tension, compression and flexure.
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First Step into A New Physics Realm: Search for the Majorana Nature of Neutrinos in the Inverted Mass Ordering Region
… and lead to a plethora of new theoretical and experimental investigations. This dissertation contains both theoretical and experimental work. The theoretical calculation of the non-perturbative nuclear matrix element for 0𝜈𝛽𝛽 is done using lattice quantum chromodynamics (LQCD) to interpret the …
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ΠΕΙΡΑΜΑΤΙΚΗ ΔΙΕΡΕΥΝΗΣΗ ΤΗΣ ΗΠΑΤΟΤΟΞΙΚΟΤΗΤΑΣ ΤΗΣ ΜΕΘΟΤΡΕΞΑΤΗΣ ΣΕ ΣΥΝΔΥΑΣΜΟ ΜΕ ΑΛΛΑ ΦΑΡΜΑΚΑ
IN THE PRESENT ORIGINAL EXPERIMENTAL WORK AN ATTEMPT IS MADE TO STUDY METHOTREXATE-INDUCED HEPATOTOXICITY. SIXTY SIX MALE ALBINO RATS WERE USED. OUR RESULTS ARE THE FOLLOWING: 1. METHOTREXATE- INDUCED HEPATOTOXICITY IS ENHANCED BY CONCOMITANT ADMINISTRATION OF PHENYLBUTAZONE OR PHENOBARBITAL, 2. …
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Intonational strategies in ensemble singing
… voice was chosen as the appropriate subject for experimental work, due to its superior capability to define pitch as compared to other musical instruments. Ensemble singing was also required, as harmonic context may be important in the clarification of the issue, Chapter One, as an introduction …
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Detection of multiple defects based on structural health monitoring of pipeline using guided waves technique
… hole and slopping cracks. A physical experimental works as well as numerical simulation using ANSYS were conducted to achieve the research objectives. The experimental work was performed to validate the numerical simulation. An artificial neural network was used to classify the damages …
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