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 1094 for “"PS"”.
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Functionalization of PS-b-P4VP Nanotemplates
… are demonstrated (observed) on few sorts of PS‑b‑P4VP copolymers with respect to their molecular weight and ratio of blocks. Although there are many kinds of nanostructures based on block copolymers, only nanotemplates are involved in the study. Their properties, like an influence of …
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DASPPS: Distributed Answer-set Programming with PS+
No abstract prepared.
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Perfect shuffle optical frequency division multiplexing (PS/OFDM)
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1990.
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Investigations of the water oxidation complex in PS II
In this thesis an attempt was made to take the water oxidizing complex apart in a controlled way and to reconstitute it to its functional form.
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A novel high-efficiency SiPM-based system for Ps-TOF
A novel set up for Positronium Time Of Flight is proposed, using Silicon Photomultipliers (SiPMs) instead of Photomultiplier Tubes. The solution allows us to dramatically increase the compactness of the set up, thus improving the efficiency of 240%. Different configurations of SiPM+scintillators …
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Thermal modulation during solvent annealing of PS-PDMS block copolymer
… structures with long-range order. Ideal BCPs for generating these nano-scale patterns fall within the strong segregation limit (SSL) and have a high interaction parameter to drive BCP phase transitions. BCP morphologies can vary from equilibrium structures such as spheres, cylinders, and …
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Joint migration velocity analysis of PP- and PS-waves for VTI media
Combining PP-waves with mode-converted PS reflections in migration velocity analysis can help build more accurate VTI velocity models. To avoid problems caused by the moveout asymmetry of PS-waves and take advantage of efficient MVA algorithms designed for pure modes, I suggest to generate pure …
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"Ps.-Seneca ""de Spe"" (Anth. Lat. 415 Riese): Prolegomena, Text, Translation, Commentary"
… to Seneca is traced from Scaliger's editio princeps to the present. Attitudes toward Hope in Roman religion and popular belief are discussed, and De Spe's literary genre (the locus de Fortuna) and models are examined. The Commentary elucidates textual, grammatical, hermeneutic, and metrical …
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“Triple Ps” in infrastructure development and economic growth in Sub-Saharan Africa
… on the impact that public private partnerships (PPP) has had on the economies of sub-Saharan African countries. A quantitative approach was decided on to extend the limited empirical studies performed relating to the impact that PPPs have on the economies of sub-Saharan Africa. The …
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Pattern Formation and Phase Behavior in PS-B-SI Containing Block Copolymer Thin Film
… used in our research. First approach is using PS-b-PDMS. PDMS-containing block copolymers have emerged as next generation block copolymers for nanolithography. Their films can be processed under dry conditions using oxygen plasma to produce inorganic, silica patterns which enables their …
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Ps receiver function imaging of crustal structure and Moho topography beneath the Northeast Caribbean.
The Caribbean plate consists of accreted different geologic terrains bounded by a system of complex plate boundaries. We conduct P-to-S receiver function studies of the Northeast Caribbean in order to image the plate boundary and study the major forces driving tectonics and strain distribution in …
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Paper spray mass spectrometry (PS-MS) for toxicological drug screens and biomonitoring of chemical warfare agent exposure
… for sample preparation. This work further develops the technique in two major areas: negative ionization and drug screening. Negative ionization has always been an obstacle to electrospray-based ion sources because of its vulnerability to corona discharge, but methods are presented here to both …
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Psychological safety... P.S. it'll be OK! Understanding senior medical students' experiences of psychological safety (PS) in simulation
… judgement or scrutiny of their performance. Psychological safety is an abstract concept researched in the context of simulation and embedded in guides on how to design and deliver this form of teaching (Motola et al., 2013). Promoting psychological safety can help learners feel free from …
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Development of a new silicon pixel detector with 10 ps time resolution for high luminosity future experiments
… are a time resolution better than 50 ps per hit, a spatial resolution of the order of 10–20 μm and a radiation hardness up to 6·10^16 1 MeV n_eq/cm^2. In this thesis the characterizations performed both in the laboratory with a 90Sr source and in several test beam campaigns are …
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The incidence of injury and exposure times of footballers playing in a professional football club in the PS
… in South Africa, a Professional Soccer League (PSL) team (AJAX CT) was monitored throughout the season by the medical support staff of the team using the F-MARC data collection system devised by FIFA. The main objective of this study was to undertake a retrospective epidemiological study …
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Production and excitation of cold Ps for anti-H formation by charge exchange: towards a gravitational measurement on antimatter
… of oxide-coated nanochanneled silica plates (NCPs). We spend chapter 1 formulating a classical model of positronium production and thermalisation in NCPs and validating it by testing it against the available experimental data. In chapter 2 we describe the measurement of the energy spectrum of …
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