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 2194 for “"Penetration"”.
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The Power of Penetration
Women's social and economic situation has improved to some degree in the last few decades. However, some cultural attitudes have proven difficult for women to overcome. Researchers have described rape as "natural" to explain the persistence of violent sexual abuse towards women (Thornhill and …
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Cone penetration in clays.
Thesis. 1978. Sc.D.--Massachusetts Institute of Technology. Dept. of Civil Engineering.
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Deep penetration magnetoquasistatic sensors
… static (DC) operation, which enables deep penetration defect imaging. Low frequencies are needed for deep probing of metals, where the depth of penetration is otherwise limited by the skin depth due to the shielding effect of induced eddy currents. The capability to perform such imaging …
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Study of penetration and rate of penetration of fuel sprays into air at high density.
Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Thesis. 1967. B.S.
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SVALPEN Svalbard Radar Snow Penetration Experiment
… is the lack of understanding of radar signal penetration into snow overlaying the ice. In this thesis, we aim to characterize how well a 24 GHz frequency-modulated continuous-wave radar system is able to observe structure in and under a snowpack, and the conditions where radar penetration is …
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Penetration of Surfactant Solutions into Capillaries
… surfactant aims to reveal the processes by which penetration occurs. Dissipation in the wedge was investigated as a source of deviation from Lucas-Washburn behaviour. Three theoretical models were compared to the experimental data: (I) The Lucas-Washburn model, (II) A “Young” model and (III) …
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Cone penetration testing in polar snow
Innovative Cone Penetration Testing (CPT) using adapted commercial CPT equipment was conducted in Antarctica in early 2010 in an attempt to assess the strength of polar snow; additionally, application of CPT data was considered, particularly in estimating surface bearing capacity. Almost 100 CPT …
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A Study of Fluid Jet Penetration
Made available in DSpace on 2014-12-05T19:16:02Z (GMT). No. of bitstreams: 1 6206162.pdf: 4532984 bytes, checksum: 211c8b815dc8bf94ae242b9a94eaaa13 (MD5) Previous issue date: 1962
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Penetration Depth Studies of Unconventional Superconductors
The magnetic penetration depth λ of various unconventional superconductors have been measured down to ~0.1 K using a tunnel-diode based, self-inductive technique at 21 and 28 MHz. The samples measured are the heavy-fermion superconductors CeCoIn5 and PrOs4Sb12, the rare-earth borocarbides RENi2B2C …
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Penetration depth measurements of organic superconductors
The temperature dependence of the magnetic penetration depth (λ) has been measured in single crystals of fully deuterated κ-(ET)2Cu[N(CN)2]Br. This material separates into superconducting (SC) and antiferromagnetic (AFI) phases. The relative amounts of SC and AFI phases has been shown to depend on …
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Projectile penetration of thin aluminium plate
The study of thin plate penetration has long been hampered by the lack of experimental data and that which has been reported is concerned mainly with displacement time records of the projectile and target responses to impact. In the present study two new techniques have been developed to monitor: …
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Energy transfer and grain size effects during the Standard Penetration Test (SPT) and Large Penetration Test (LPT)
The Standard Penetration Test (SPT) is the most widely used in-situ soil test in the world. "Large Penetration Test" (LPT) is a term used to describe any scaled up version of the SPT. Several types of LPT have been developed around the world for the purpose of characterizing gravel deposits, as SPT …
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Magnetic Penetration Depth Analysis of Unconventional Superconductors
We present magnetic penetration depth measurements on various superconducting materials using a self-inductive, tunnel-diode based oscillator technique down to ∼100 mK. The materials measured consisted of the skutterudites LaRu4Sb12 and LaOs4Sb 12, the heavy fermion superconductor CeIrIn5, a …
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Determinants of Life Insurance Penetration in SADC
… (independent variables), and life insurance penetration (dependent variable) in Southern African Development Community member states. The study employed the fixed effects and system general methods of moments techniques to estimate the panel data. From the findings, it is concluded that the …
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The mechanics of plate penetration in clays
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1991.
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Mechanisms of Metal Penetration in Solid Electrolytes
… advancement. This thesis demonstrates that metal penetration depends on two additional factors. The first is whether electric field focusing is present between the stripping and plating electrodes. We show that amplified electric fields, which correlate with increased local current densities, …
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Open-ended pile penetration in saturated clays
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1986.
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Standard penetration test correlations for Las Vegas soils
Standard penetration tests (SPT) are used to approximate soil properties including the consistency, cohesion and the internal angle of friction. Due to the frequency of cemented sands, gravel and clay in the Las Vegas Valley, the generally accepted SPT correlations vary from actual local …
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Factors Influencing Topotecan CNS Penetration in Mouse Models
… Bcrp1 and P-gp in determination of topotecan CNS penetration in mouse models by using cerebral microdialysis. Microdialysis sampling of drugs in ventricular cerebrospinal fluid (vCSF) provides insight into drug penetration into the brain across the blood CSF barrier (BCB); however, this method has …
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