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 “"Push-pull"”.
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Interactions of a multi-limb push-pull task
Digitized by Kansas Correctional Industries
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Cooperative Push/Pull Protocols for Live Peer-Assisted Streaming
… and proposed are based in general on mixed Push/Pull phases, i.e., the behavior of peers alternates between offering content to other peers and seeking the content from other peers. The first part of the work is dedicated to the analysis of the fundamental properties of the Push/Pull …
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PUSH-PULL COPOLYMERS IN THIN FILM FOR ELECTRONIC APPLICATION
In this work, push-pull copolymers have been synthesized by electrochemical and chemical methods in order to fabricate new devices on flexible substrates, for electronic applications in several areas as electrochromism, solar cells and sensors. Electrochemical synthesis was employed to synthesize …
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A Comparison of Push/pull Hybrid Manufacturing Control Strategies
These strategies are compared in a similar manner for a more complex example. A portion of an actual consumer electronics assembly line is simulated. The objective in this example is to maximize throughput. Similarities and differences exist between the two examples. Results suggest that no …
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Push-pull Tests to Quantify In-situ Naphthalene Phytoremediation Rates
Ten strategically placed push-pull wells were installed to determine in-situ degradation rates at a creosote contaminated site and to assess the contribution of hybrid poplar trees to polynuclear aromatic hydrocarbon (PAH) remediation. Well positioning enabled comparison between contaminated and …
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Novel Current-Fed Boundary-Mode Parallel-Resonant Push-Pull Converter
The inherent difficulty in designing high voltage power supplies is often compounded by demands of high reliability, high performance, and safe functionality. A proposed high step-up ratio DC-DC converter meets the exacting requirements of applications such as uninterruptible power systems, radar, …
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Essay on Incentives for Pharmaceutical Research: A Double Push -Pull Program
… This is a key feature of the proposed Double Push-and-Pull program, which proposes to, systematically, reorganize some of the ideas to spur innovation by involving effectively the developing countries in the process of research and development of new drugs for neglected diseases, since they …
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On the computational complexity of portal and push-pull block puzzles
… depending on the game mechanics allowed. Push-pull block puzzles are games, similar to Sokoban, which involve moving a 'robot' on a square grid with obstacles and blocks that can be pushed or pulled by the robot into adjacent squares. We prove that push-pull block puzzles in 3D and …
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Design and synthesis of Push-pull chromophores for cell imaging and OPV devices [Progettazione e sintesi di cromofori Push-pull per l'imaging cellulare e i dispositivi OPV]
… sintesi e caratterizzazione di nuovi cromofori push-pull, sviluppati per due applicazioni avanzate: l’imaging cellulare e il fotovoltaico organico (OPV). Unificate dall’integrazione strategica di gruppi donatori-accettori nelle architetture molecolari oggetto di studio, le ricerche sono …
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SPECTROSCOPIC, IMAGING, AND DOPING STUDIES OF PUSH-PULL CONJUGATED POLYMER SOLAR CELLS
Organic Photovoltaics (OPV) have the potential to provide inexpensive, renewable electric power to satisfy increasing global energy demands due to their low materials and processing costs. Poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta [2,1- …
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Bridgeless Active Power Factor Correction Using a Current Fed Push Pull Converter
… Factor Correction</p> <p>Using a Current Fed Push Pull Converter</p> <p>Jeramie Seth Bianchi</p> <p> Switched Mode Power Supplies have become increasingly popular for efficient methods of delivering power to an assortment of electronic devices. This thesis proposes a method of using a current …
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Reacciones de cicloadición y cicloisomerización catalizadas por oro en compuestos "Push-pull" : síntesis regioselectiva de heterociclos
… ricos; frente a sistemas dienínicos ¿push-pull¿. Metodología empleada. Se han utilizado diversos catalizadores metálicos para promover reacciones de cicloadición, entre sistemas dienínicos ¿push-pull¿2 y diferentes sistemas insaturados. Conclusiones. Se ha desarrollado una nueva …
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Optimized design and analysis of a voltage-fed, push-pull, autotransformer battery discharger for the NASA space platform
… optimal design, build and test of Voltage-Fed, Push-Pull Autotransformer battery discharger topology. The main thrust of this document is to achieve an optimal efficiency. The list of available parts is restricted to only those that are approved. Derating guidelines restrict the choice of power …
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A Study of the in Vivo Release of Luteinizing Hormone-Releasing Hormone as Estimated With the Push-Pull Perfusion Technique
… rats and sheep was estimated by means of a push-pull perfusion (PPP) system. Ovariectomized (OVx) rats received 5 (mu)g estradiol benzoate at 1000 h, followed 48 h later by 1.5mg progesterone (P) or oil. Rats in which P was administered showed a significant (p < 0.01) 40-min elevation of …
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Mise en place de différentes stratégies visant à favoriser l’approche « push-pull » pour le contrôle des pucerons en cultures maraîchères dans l’est de la Chine
… pesticides, namely by the establishment of “push-pull” strategies, in courgettes and potato fields. We used three semiochemicals, the (E)-β-farnésène, the (Z)-3-Hexenyl acetate and a garlic extract and intercropping with pea. The effect of these treatments in the populations of aphidiphagous …
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Use of a Two-Action Paradigm Apparatus with Captive Lemurs: Insights into Social Learning
… the Duke Lemur Center. There were three groups: push (had model previously taught to push), pull (had model previously taught to pull), and control (no model). I conducted experimental trials to determine if lemurs in push/pull groups learned faster and more efficiently from the model than lemurs …
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A Time-Domain Modeling of Multi-Element Resonant Converter With Capacitive Output Filter
… have been shown. This work also proposes a novel Push-Pull resonant converter. The CLL resonant tank has been find to be best fit for secondary side resonance with push-pull configuration. A steady-state analysis of Push-Pull CLL resonant converter has been done in time-domain. The CLL resonant …
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Demand bubbles and phantom orders in supply chains
Essay One The Impact of Shortages on Push-Pull Production Systems This paper explores the impact of endogenous customer demand on supply chain instability. It investigates how a semiconductor manufacturer's hybrid push-pull production system responds to customer demand, when inventory availability …
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Prolactin Effects on Nigrostriatal and Mesolimbic Dopaminergic Neurons: In Vivo and In Vitro Studies
In the present research, using both in vivo push-pull perfusion and in vitro superfusion techniques coupled to HPLC assay, the effect of prolactin on nigrostriatal and mesolimbic dopaminergic neuronal activity and its possible regulatory mechanism were examined.
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On Single Well Forced Gradient Tracer Tests: Implications of Aquifer Physical Heterogeneity and Tracer Behaviour
… and hydraulic parameters of an aquifer, while push-pull tests are well characterised for use with biodegrading tracers. The effect of typical aquifer physical heterogeneity on the ability of single well tests to successfully estimate parameters has not yet been characterised. Also, the ability …
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