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 167 for “"Laboratory test"”.
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Laboratory test of a Cozette Supercharger
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Business and Engineering Administration, 1927.
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Laboratory Test Program of Rotary Plate Sprinklers
… on the communications with Nelson Mfg., this test program was initiated to obtain the data required for the application rate profiles and drop distributions that are needed for studies of kinetic energy associated with sprinkler water application. Data sets across a range of sprinkler …
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Design of a laboratory test bed for planetary rover systems
… thesis presents the design of an experimental test bed for studying planetary rover systems. The design of a six-wheeled rocker bogie rover and a mechanism for this rover to vary its geometry using shape memory alloys are presented. The rover's geometry is scaled from Jet Propulsion …
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Adhesion Mechanisms of Bituminous Crack Sealant to Aggregate and Laboratory Test Development
While the direct adhesion test is proposed as part of newly-developed performance-based guidelines for the selection of hot-poured crack sealant, the blister test may be used to estimate the optimum annealing time, in addition to IFE determination.
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Development and Implementation of Laboratory Test Methods for the Evaluation of Wearable Head Impact Sensors
… its performance has been completed. Preliminary tests have found that current sensors vary widely in performance. The objective of this work was to develop and implement a test method for evaluation of wearable sensors in an ideal laboratory environment. A custom pendulum was used to impact a …
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Laboratory test methods for the determination of the corrosion of metals in tallol at high temperatures
… then adding water and repeating the corrosion test for five hours. From the results obtained in this investigation, it was decided that the most satisfactory correlation with plant data would probably be obtained by operating the test with fresh tallol at 300° C and replacing it every eighteen …
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Use of an environmentally realistic laboratory test organism and field bioassessments to determine the potential impacts of active coal mining in the Dumps Creek subwatershed on the Clinch River, Virginia
… were obtained from bioaccumulation in-situ tests with the Asian clam (Corbicula fluminea) in 2009. Aluminum (7.81 mg/kg), Fe (48.25 mg/kg) and Zn (7.69 mg/kg) were accumulated in higher concentrations at CR-PM site than CR-2. However, the site located below the CRP effluent discharges …
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Critical Moisture Conditions for Mould Growth on Building Materials
… climates, favourable for mould growth, in the laboratory. Samples of the building materials were inoculated with mould spores and incubated in climate chambers at different relative humidities and temperatures; growth of mould was analysed weekly for at least 12 weeks. In order to verify that …
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Design and implementation of a digital real-time secondary surveillance radar/identification friend or foe target emulator
A real live test involving such a large number of targets would be extremely expensive, and difficult to repeat. There is thus a need for specialized target emulators to be developed and used as laboratory test equipment. This thesis describes the design and implementation of a …
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Factors Affecting Strength Gain and Development of a Laboratory Testing Procedure
… in Alexandria, Virginia. As part of the test embankment program, two different commercial laboratories performed laboratory tests on treated soil, and they produced strikingly different unconfined compression test results. Further, both sets of results are different from test results for …
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Ensaios de piezocone em um depósito de argila mole da cidade do Recife
Piezocone tests been been performed in a soft clay deposit at Recife using the equipment developed at COPPE/UFRJ. Laboratory tests have also been performed. Piezocone test results have been compared with laboratory test results, as well as with data from other deposits. The comparison between …
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Prevalence and prediction of serious bacterial infection in febrile children: a role for cytokines?
… of young febrile children, and no single laboratory test has been shown to reliably identify young children at high or low risk of having serious bacterial illness. Knowing the local prevalence of SBI is essential in formulating management strategies because extrapolation from studies done …
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Two-Dimensional Finite Element Analysis of Porous Geomaterials at Multikilobar Stress Levels
… finite element (FE) code was developed to verify laboratory test results or to predict unavailable laboratory test data for porous media loaded to multikilobar stress levels. This FE program eliminates a deficiency in the process of analyzing and developing mechanical properties for porous …
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Novel Serum Biomarkers For Lung Cancer Early Diagnosis and Clinical Outcome
… <p>We next investigated pre-treatment laboratory tests indicative of a patient’s overall metabolic status, as biomarkers for non-small cell lung cancer (NSCLC) clinical outcome. We assessed seven pre-treatment serum laboratory test levels in 2,675 NSCLC patients, including 623 early …
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Use of wicking geotextile to dehydrate road embankments
… a new wicking geotextile. Firstly, a series of laboratory test results were performed to characterize the mechanical and hydraulic properties of the wicking geotextile, the soil, and their interactions. After that, the laboratory test results were used as numerical simulation inputs to evaluate …
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Magneto-Rheological Dampers for Super-sport Motorcycle Applications
… with the design procedure used to make it. Next, laboratory testing for it is covered, including the test equipment, test procedure, and the laboratory test results. Upon laboratory test completion, the field test setup and procedure are presented. The results of field tests with stock dampers and …
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An Electrometer Design and Characterization for a CubeSat Neutral Pressure Instrument
… Coupling Experiment (LAICE) CubeSat mission. Laboratory test setups for measurements performed both under vacuum and at atmospheric pressure are documented in detail. Test procedures are presented to characterize the performance of the Rev. 2 electrometer at a range of controlled operating …
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Preliminary Design of an Improved Load Measuring Device for Underground Mining Standing Supports
… NIOSH STOP database contains load-displacement laboratory test data for most commonly used standing supports. Hydraulic load cells currently used to measure in-situ loading of standing supports have exhibited leakage under load, producing irregularities within the dataset. An improved hydraulic …
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Two laboratory approaches for teaching basic woodworking technology to students in agricultural mechanics
… study was twofold: 1. To select and develop two laboratory approaches for teaching basic woodworking technology to students in agricultural mechanics. 2. To compare student performances of the two laboratory approaches both on the college level and on the high school level. PROCEDURES: The …
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Investigation of a method for monitoring stress changes in the burst prone seams of southwestern Virginia
… of a borehole stressmeter is discussed. Laboratory testing. which yielded promising results of the stressmeter (inclusion) is presented along with preliminary field test results. Laboratory testing involved comparison with the results of a two-dimensional finite element model of the …
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