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 112 for “"CVS"”.
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Determination and analysis of natural gas vehicle tailpipe emissions based on continuous CVS measurement
… pollutants in Constant Volume Sampler (CVS) emissions measurement system. However, it is recognized that the DF is dynamically changing due to the CVS mechanism. Based on the continuous measurement data obtained from natural gas vehicle emissions testing, a new approach was used in this …
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Accelerating The Discontinuous Galerkin Cell-Vertex Scheme (Dg-Cvs) Solver On Cpu-Gpu Heterogeneous Systems
Dg-Cvs (Discontinuous Galerkin Cell-Vertex Scheme) is an efficient, accurate and robust numerical solver for general hyperbolic conservation laws. It can solve a broad range of conservation laws such as the shallow water equation and Magnetohydrodynamics equations. Dg-Cvs is a Riemann-Solver-free …
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Eclipsing Cataclysmic Variables With TESS
Cataclysmic variables (CVs) are compact, interacting binary systems consisting of a white dwarf primary accreting material from an evolved main-sequence companion. Since its launch in 2018, the Transiting Exoplanet Survey Satellite (TESS) has delivered unprecedented, long-term photometric coverage …
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Evaluating the Impacts of Connected Vehicle Technology on Evacuation Efficiency
… of this research were to evaluate the impacts of CVs on evacuation from a downtown metropolitan area. The microsimulation software VISSIM was used to model the roadway network and the evacuation traffic. The model was built, calibrated and validated for studying the performance of traffic during …
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Automatic Visualization of the Version history of a Software System in Three Dimensions
… was responsible for the change. RCS, SCCS and CVS are examples of such version control systems, and they usually have a command-line interface. The widespread use of CVS has however given rise to a host of "CVS clients", which provide a two-dimensional graphical interface to CVS. While working …
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The broad spectral energy distributions of accreting white dwarfs
Cataclysmic Variable stars (CVs) are excellent examples of multi-wavelength objects. They have been detected at all frequencies, from radio to γ-ray. However, while large sets of multi-wavelength data exist, few studies have been performed on the broad spectral energy distributions (SEDs) of these …
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ΣΥΜΒΟΛΗ ΣΤΗ ΜΕΛΕΤΗ ΤΗΣ ΦΥΣΙΟΛΟΓΙΑΣ ΤΗΣ ΡΙΖΟΓΕΝΕΣΗΣ ΜΕΡΙΚΩΝ ΠΟΙΚΙΛΙΩΝ ΤΗΣ ΑΜΠΕΛΟΥ (V.VINIFERA L.) ΚΑΙ ΥΠΟΚΕΙΜΕΝΩΝ
HARDWOOD CUTTINGS OF THE GRAPEVINE CVS 41B AND ROZAKI COLLECTED ON FEBRUARY ANDMARCH ROOT BETTER THAN EARLY COLLECTED CUTTINGS. CUTTINGS OF 5 CVS (ROZAKI RODITIS SAVATIANO MO NAOUSIS AND C. SAUVIGNON) STORED 12 WEEKS AT AMBIENT TEMPERATURE ROOTED BETTER THAN CUTTINGS STORED AT 4 C OR 8 C. WHEN THE …
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Accretion processes in cataclysmic variable stars: insights from optical transient surveys
… This study focuses on two sub-classes of CVs, namely AM Canum Venaticorum (AM CVn) stars with helium accretion from a (semi-)degenerate helium star or white dwarf donor star, and magnetic CVs, specifically polars, which have the strongest magnetic fields of the accreting white dwarfs in …
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EXAMINING THE INFLUENCE OF INSTRUCTIONAL STRATEGY ON STUDENT LEARNING AND SELF-EFFICACY IN SCIENCE
… using control of variable strategies (CVS). Specifically, the goal of this study was to replicate and extend prior research that examines the impact of the level of guidance on ability to successfully design scientifically credible experiments that isolate the relationship between two …
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Influence of SiNx/Si interface states on Si solar cells
… it was subjected to a constant voltage stress (CVS) of +10V at room temperature. The interface trap density (D_{it}) across the SiN:H/n^+-Si interface increased from 6.3 x 10^9 to 7.5 x 10^9 cm^{-2} eV^{-1} after a 500-second stress whereas the n^+/p junction diode remained unaffected by the …
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Very old and very young compact objects : X-ray studies of galactic globular clusters and recent core-collapse supernovae
… I find 10 likely cataclysmic variables (CVs), 1-3 likely RS CVn or BY Dra systems, and 1 or 2 possible background objects. Of the 7 sources for which no optical identifications were made, one was detected in the archival radio data, and another was found to be a millisecond pulsar. Of the …
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Magnetic braking in low-mass stars
… dwarf (WD) companion, the cataclysmic variables (CVs). Their orbital evolution is driven by angular momentum loss due to magnetic braking (MB). Although the same fundamental mechanism likely drives MB in all these systems, a holistic study of such a mechanism has not been carried out before. Here …
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Rapid oscillations in cataclysmic variable stars
… light curves of 24 cataclysmic variable stars (CVS). In 12 of these systems (TU Men, WW Cet, HX Peg, BP CrA, BR Lup, HP Nor, AG Hya, TW Vir, PU CMa, V426 Ooph, V1193 Ori, and CR Boo) for the first time. The results contribute to the observational record of the phenomenology of dwarf nova …
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Machine learning of molecular conformations, kinetics and beyond
… utilizes high-variance collective variables (CVs) to guide sampling. By applying the framework on some molecular systems, I show its efficiency for exploring configuration space, and discuss several aspects for improvements. Second, I build a deep-learning based model termed “State-free …
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Observational studies of highly evolved cataclysmic variables
… theory, angular momentum loss drives CVs to initially evolve from longer to shorter orbital periods until a minimum period is reached (? 80 minutes). At roughly this stage, the donors becomes degenerate, expand in size, and the systems move towards longer orbital periods. Theory …
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Cone packing measurements from confocal and split-detector adaptive optics images in human eyes
… for simulated data. Coefficients of variation (CVs) were calculated for in vivo data. Finally, square ROIs of different sizes were extracted from simulated and in vivo cone mosaics. Cone metrics were compared between ROI sizes. Results: 1) The mean CVs of density for confocal and split-detector …
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EFFECT OF VEHICLE CONNECTIVITY ON THE SAFETY PERFORMANCE OF FREEWAY ACCELERATION SPEED CHANGE LANES
… the capabilities of connected vehicles (CVs) to make the merging process more comfortable, and thus safer. Probability of non-compliance (PNC) which is a measure of probability of SCL driver's uncomfortable merging was calculated considering the gap searching and acceleration behaviour in …
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Translational Regulation in Excitatory Neurons Controls Stress Reactivity and the Antidepressant Response to Ketamine
… endocrine responses to acute (ARS) and chronic (CVS) stress, and in ketamine's antidepressant effect. We found that ARS increased grooming and corticosterone in both sexes, with attenuated grooming in male DKO mice only. In CVS, DKO mice showed resilience to stress-induced behavioural deficits, …
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Exploring the application of new telescope technologies in the testing of dwarf novae accretion models
… context of accretion in cataclysmic variables (CVs), their role in contributing to the stellar variability studies which help drive their development.
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Women’s decision making process regarding prenatal diagnostic testing
… - amniocentesis and Chorionic Villus Sampling (CVS) – and taking into account the latest emergence of a Noninvasive Prenatal Testing, NIPT, the primary goal of this study was to explore factors that influence women’s decision to have an invasive, a non-invasive or no further testing at all. …
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