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 55 for “"AFS"”.
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An Examination of the Impact of Studying Abroad with AFS on Level of Differentiation
… a semester-long (n = 69) and year-long (n = 119) AFS (formerly known as American Field Service) program and a control group (n = 75) that did not study abroad. Gender of student and level of individualism of host country were also examined. The DSI full scale and four subscales: emotional …
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Playing with power & possibility: Exploring the ways in which gameplaying can be used as a decolonial feminist tool in the African Feminist Studies (AFS) classroom
… approach in the African Feminist Studies (AFS) department. Moreover, the purpose of this study thus aims to explore the ways in which playing games functions as a decolonial pedagogic method for teaching and to include students as co-producers of knowledge together with academic staff. This …
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Smoothed Particle Hydrodynamic Modeling of Solid State Additively Manufactured Aluminum Alloys
Additive friction stir-deposition (AFS-D) is a nascent additive manufacturing process shown to have better mechanical properties of deposited material than conventional techniques. While significant experimental research has been conducted on AFS-D, relatively little computational research exists …
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Efeitos hidrostáticos e da posição do indivíduo na tensão arterial e freqüência cardíaca
… e na água, com a face emersa (AFE) e submersa (AFS), em diferentes posições. Participaram deste estudo dez homens (idade média de 22,6 anos; d.p. = 2,67) e dez mulheres, com média de idade de 21,1 anos (d.p. = 1,97). A TA foi medida por auscultação com um esfigmomanômetro adaptado e a FC por …
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Modeling advanced flash stripper for carbon dioxide capture using aqueous amines
… and compression. The advanced flash stripper (AFS) proposed in this work provides the best energy performance among other alternatives. A systematic irreversibility analysis was performed instead of examining all the possible alternatives. The overhead condenser and the cross exchanger were …
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Study of degradation of aflatoxins after sonication and their determination by HPLC-QqQ-MS
Οι αφλατοξίνες (AFs) είναι φυσικώς απαντώμενοι, τοξικοί, θερμικώς σταθεροί, δευτερογενείς μεταβολίτες που παράγονται από στελέχη μυκήτων, κυρίως του γένους Aspergillus. Η παρουσία τους σε μεγάλη ποικιλία αγροδιατροφικών προϊόντων αποτελεί απειλή για την ασφάλεια των τροφίμων, με αυστηρά ρυθμιστικά …
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An Examination of Non-Cognitive Predictors of Six-Year Graduation Rates for African American Students at a Predominately White Institution Using the Annual Freshman Survey
… questions from the Annual Freshman Survey (AFS) that may predict academic success, in the form of six-year graduation, for African American students at a predominately White institution. Previous research has reported the relevance of non-cognitive variables in predicting college grades, …
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Investigation of the Effects of Various Energy and Exergy-Based Objectives/Figures of Merit on the Optimal Design of High Performance Aircraft System
… and an Airframe Subsys-tem - Aerodyanmics (AFS-A) is used to illustrate these advantages. Thermodynamic (both energy and exergy), aerodynamic, geometric, and physical models of the components comprising the subsystems are developed and their interactions defined. An exergy-based parametric …
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Fighter Aircraft Synthesis/Design Optimization
… (PS) and airframe subsystem-aerodynamics (AFS-A)) air-to-air fighter (AAF) with two types of AFS-A models: a fixed-wing AFS-A and a morphing-wing AFS-A. The AAF flies 19 mission segments of a supersonic fighter aircraft mission and the results of the study show that for very large …
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Active Suppression ofAerofoil Flutter via Neural-Network-Based Adaptive Nonlinear Optimal Control
… thesis deals with active flutter suppression (AFS) on aerofoils via adaptive nonlinear optimal control using neural networks (NNs). Aeroelastic flutter can damage aerofoils if not properly controlled. AFS not only ensures flutter-free flight but also enables the use of aerodynamically more …
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Microstructure and Mechanical Properties of WE43 Alloy Produced Via Additive Friction Stir Technology
… manufacturing processes. Additive Friction Stir (AFS) is a relatively new additive manufacturing technology that yields wrought microstructure with isotropic properties. In this study, Additive Friction Stir (AFS) fabrication was used to fabricate WE43 magnesium alloy, with both atomized powder …
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How common ravens (Corvus corax) exploit anthropogenic food sources through time and space in a semi-transformed, alpine environment
… of food resources. Anthropogenic food sources (AFSs) are often more spatially concentrated, easily accessible, abundant and stable than natural food sources. The common raven, Corvus corax, is a behaviourally flexible and ecologically adaptable species that has managed to thrive in human …
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“Exploring the contribution of alternative food systems towards food security: a case study of the siyazenzela food garden project”
… the development of Alternative Food Systems (AFS) have been partially attributed with seeking to overcome the exclusion enforced through the apartheid regime’s racial planning policies. It was during this period that poor African households were forcibly relocated to the periphery of urban …
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Development and characterization of a low power helium microwave induced plasma for spectrometric determinations of metals and nonmetals
… (AES) and atomic fluorescence spectrometry (AFS). A torodial plasma was sustained in the cavity solely by the helium gas output of the nebulizer. Aqueous samples from a pneumatic glass nebulizer/Scott spray chamber were aspirated into the cavity without a desolvation apparatus. With AES, …
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Speciation of Mercury by Chromatography Coupled with Atomic Spectrometry
A commercial GC-AFS instrument has been developed and optimised for the speciation of organomercury. This instrument couples a GC oven to a modified atomic fluorescence detector via a ceramic pyrolyser. Organomercury compounds in dichloromethane solvent were directly injected through a Programmable …
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Stem cell-based regenerative pharmacology for the treatment of diabetes mellitus
… of novel drug targets. Amniotic fluid stem (AFS) cells are a long-lived, bankable cell source possessing extensive differentiation capacity. We found that by genetic manipulation and culture condition modifications, AFS cells can be induced to produce insulin, making them a potential source …
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A Decomposition Strategy Based on Thermoeconomic Isolation Applied to the Optimal Synthesis/Design and Operation of an Advanced Fighter Aircraft System
… sub-system (VC/PAOS), and airframe sub-system (AFS) of which the AFS is a non-energy based sub-system. Configurational optimization was applied. Thus, a number of different configurations for each sub-system were considered. The most promising set of candidate configurations, based on both an …
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The effects of organic gases on atomic spectrometric signals in the ICP
… cell for atomic fluorescence spectrometry (AFS). Since the ICP is an energetic source, the vaporization process is efficient. This high temperature promotes transitions of the analyte and the argon support gas making spectral interference a problem. To alleviate this problem in AFS, it was …
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Intensification of agriculture and livestock based on low carbon technologies in the Amazon and Atlantic Forest
… (ICLF) or Agroforestry Systems (AFS), can support increased agricultural production while recovering and preserving the environment. In view of this, we identified in the Amazon, the pattern of land use by farmers who adopt sustainable technologies, considering AFS and managed …
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Alternative fulfillment operations and vendor analysis
… of Amazon's Alternative Fulfillment Sites (AFS). AFSs are smaller Fulfillment Centers (FCs) that have a more focused set of SKUs. By focusing on a smaller subset, complexity and costs are reduced at these sites at the expense of the larger assortment of products seen at traditional FCs. …
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