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 130 for “"Doublet"”.
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A doublet panel method for generalized supersonic lifting surfaces
An improved doublet panel method for calculating the aerodynamic properties of lifting surfaces in supersonic flows is derived and implemented. The lifting surfaces are discretized into an arbitrary number of doublet panels with unknown singularity strength, whose perturbation velocity potentials …
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Spontaneous CP-Violation in Two Higgs Doublet Supersymmetric Models
… CP-breakdown in models with two Higgs doublets. General features of the phenomenon such as stability of the vacuum and the existence of a light axion are discussed. We investigate the feasibility of spontaneously broken CP in the minimal supersymmetric models - the MSSM and NMSSM. The …
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Symmetries of the scalar sector of multi-Higgs-doublet models
… in order to explain these anomalies. Multi-Higgs-doublet models are among these models. We restrict ourselves to the scalar sector of multi-Higgs-doublet-models. The huge number of free parameters in the scalar potential in these models, makes it impossible to study the most general case for any …
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Efficient Organic Light-emitting Diodes with Singlet, Triplet and Doublet Excitons
… the spin state including singlets, triplets and doublets. Triplet excitons are regarded as dark states due to their spin-forbidden decay process, whereas effective triplet harvesting or triplet circumvention can help to improve the OLED performance. In this thesis, methods and mechanisms to avoid …
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Méthodes de prévision acoustique semi-analytiques pour un doublet d'hélices contrarotatives isolé
Les doublets d'hélices contra-rotatives (CROR) sont un moyen alternatif aux turbofans actuels pour propulser les avions commerciaux. Un CROR est composé de 2 soufflantes coaxiales non carénées tournant dans des sens opposées. Actuellement, les CROR pourraient réduire les émissions de CO2 mais les …
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Validation and Uncertainty Quantification of Doublet Lattice Flight Loads using Flight Test Data
… The flight loads are computed using a Nastran doublet lattice model and are validated using measured data from a flight loads survey for a Cessna Model 525B business jet equipped with Tamarack® Aerospace Group’s active winglet modification, ATLAS® (Active Technology Load Alleviation System). …
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The effect of maximal isometric training on doublet-induced force enhancement and its relationship with changes in voluntary rate of force development
Motor unit double discharges (i.e. doublets), which are excitatory potentials that occur at shorter-than-normal intervals (e.g. 5-10 ms) during normal muscle activation, are known to cause muscle force to exceed that predicted from a standard, linear summation of twitch forces. However, although a …
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An unsteady, accelerated, high order panel method with vortex particle wakes
… method potential flow formulations. Source-doublet, doublet-Neumann membrane (doublet lattice), and source-Neumann boundary integral equation formulations are implemented. A precorrected-FFT accelerated Krylov subspace iterative solution technique is implemented to efficiently solve the …
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An Engineering Analysis Method for Deep Geothermal Energy
… of a typical deep geothermal system, which is a doublet system with one injection well and one extraction well. A convective heat transfer boundary between the aquifer and overburden layers is applied for the axisymmetric problem based on the Lauwerier model for the first time. A new analytical …
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Lead-related quantum emitters in diamond
… several transitions, including a prominent doublet near 520 nm. The splitting of this doublet, 5.7 THz, exceeds that reported for other group-IV centers. These observations are consistent with the PbV center, which is expected to have the combination of narrow optical transitions and stable …
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Optical Processes in Krypton and Krypton(2)fluoride: Absolute Cross-Sections for Multiphoton Ionization of Krypton (1S(0)), Photoionization of Metastable Atomic and Molecular States of Krypton, Andabsorption of Krypton(2)fluoride (4-Doublet-Gamma)
A microwave absorption apparatus has been used to measure a cross section for the three-photon, resonantly-enhanced ionization of Kr(('1)S(,0)) at 193 nm. The presence of a two-photon resonance with the Kr 6p 3/2 (,2) level enabled the generation of large electron densities and a measurement of the …
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Exciton dynamics in organic semiconductors for efficient electroluminescent devices
… explored for efficient NIR EL devices. Recently, doublet fluorescent emission from organic radicals has emerged as a new route to more efficient light-emitting devices than those using established non-radical organic emitters. Charge recombination in radical-based devices results in doublet …
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Flavor physics beyond the standard model
… of</p> <p>explaining within a two-Higgs doublet extension of the Standard Model the quark and charged lepton mass hierarchy. We show that the experimental value of the lifetime difference in D⊃0⊃-anti-D⊃0⊃ mixing may be due to destructive interference of the Standard Model and New Physics …
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Development of a State-Space Aeroelastic Model of a Flexible T-Tail Aircraft for Flutter Analysis
… coupled fluid structure interaction codes and doublet lattice panel codes. The computation resources and time required for CFD solutions makes them unattractive for preliminary design and doublet lattice models require considerable pre and post processing to provide satisfactory results. Thus, …
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Prognostic Factor Analysis of Patients with Advanced Non-Small Cell Lung Cancer Treated with Palliative Chemotherapy
… treated with platinum-based third-generation doublet chemotherapy. RESULTS: High expression of p53, Bcl-2, Bax and ERCC1 were observed in 24 (48%), 8(16%), 32 (63%), 28 (55%) patients, respectively. In univariate analysis, high expression of ERCC1 demonstrated trend of association with poor …
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Quantum Geometry and Topology in Periodically-Strained Graphene
… the energy spectrum fractures into a pair of doublet bands that connect at zero energy and a series of narrow singlet bands. The doublet bands have total Chern number $\mathcal{C} = \pm 1,$ and the singlet bands are Chern trivial. Because of particle-hole symmetry, the gaps carry …
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Luminescence of impurity-activated alkali halides under high pressure
… from KI:Tl-type phosphors is known to display a doublet structure, due to both Jahn-Teller interactions and intermediate spin-orbit coupling. The effect of pressure on the room temperature emission is to cause a redistribution of intensity between the peaks of the doublet, with higher pressure …
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Electron Transfer in Mixed-Valence Binuclear Ferrocenes
A single quadrupole-splint doublet is seen in the 4.5 K Mossbauer spectrum for the triiodide salt of 3-acetylbis-(fulvalene)diiron(1+). An IT band at 7140 cm('-1) (e = 1740 M('-1) cm('-1)) is evident in the electronic absorption spectrum. A relatively isotropic EPR signal and a C-H bending band at …
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In-Situ Spectrocopy: Gas Mixture Analysis Using A Simplified Multi-Pass Capillary Cell and Optical Considerations In Dual-Pulse Laser-Induced Breakdown Spectroscopy Analysis of Bulk Aqueous Solutions
… the laser-induced plasma formed by an achromatic doublet that reduces spherical aberrations compared to two conventionally used spherical optics, a bi- and plano-convex lens. The achromatic doublet produced larger, longer-lived and more reproducible bubbles. The higher power density resulted in a …
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ΒΕΛΤΙΣΤΗ ΕΚΜΕΤΑΛΛΕΥΣΗ ΓΕΩΘΕΡΜΙΚΟΥ ΠΕΔΙΟΥ ΧΑΜΗΛΗΣ ΕΝΘΑΛΠΙΑΣ ΜΕ ΣΥΣΤΗΜΑ ΠΗΓΑΔΙΩΝ
… CALCULATION OF THE MAXIMUM FLOW-RATE OF A DOUBLET (WHICH IS THE "ESTABLISHED" WELL SYSTEM) IS ILLUSTRATED, BASED ON THE LIMITATIONS IMPOSED BY BREAKTHROUGH TIME AND WATER LEVEL DRAWDOWN. CHAPTER SEVEN INCLUDES A DETAILED STUDY OF DOUBLET AND QUADRUPLET, LEADING TO A COMPARISON BETWEEN THEM. …
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