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 117 for “"DAMP"”.
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Damp Skin: Portraits of Taiwanese Domesticity, Resilience, and Otherness
… exploration of Taiwanese life under the constant dampness, weaving together the present with historical threads and personal memories of home and motherhood alongside broader socio-historical narratives. It examines Taiwanese domesticity through the dual prisms of “dampness” and “enclosure …
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Rising damp evaluation and treatment : a quasi-experimental case study
… industry involved in the treatment of rising damp. Yet, critics argue that rising damp is extremely rare and remedial damp proof course treatments unnecessary and ineffective. Additionally, evaporation from rising damp affected masonry is under-researched and opinions differ with respect to …
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Synthesis of electric networks interconnecting PZT actuators to efficiently damp mechanical vibrations
… of this thesis is to show that it is possible to damp mechanical vibrations in a given frame, constituted by Euler beam governed by the equations of an elastica, by means of piezoelectric actuators glued on every beam and interconnected each other via electrical networks.Since we believe that the …
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Defect spectroscopy on Cu(In,Ga)(S,Se) 2 -based heterojunction solar cells: role of the damp-heat treatment
… test cells are reduced after prolonged damp-heat treatment in the laboratory, leading to a reduced energy conversion efficiency. We subject non-encapsulated test cells to damp-heat exposure at 85C ambient temperature and 85% relative humidity for various time periods (6h-438h). We apply …
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INTERAREA OSCILLATION DAMPING BY USING A PERMANENT MAGNET SYNCHRONOUS GENERATOR WIND TURBINE
… generator (PMSG) wind turbine control for damping power system inter-area oscillations is a topic of much interest. However, the PMSG wind turbine controls in the generator and grid sides such as a PMSG speed control or dc voltage control do not have a sufficient power modulate to damp the …
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Gyrokinetic simulations of the nonlinear upshift of the critical density gradient for TEM turbulence in tokamak fusion plasmas
… In the ITG case, increasing ion-ion collisions damp the zonal flows but have little effect on the linear growth rate. In contrast, electron-ion collisions strongly damp the TEM growth rate, while ion-ion collisions weakly damp zonal flows, causing an increase in the TEM upshift. Numerous …
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Anti-sway control of a construction crane modeled as a two-dimensional pendulum
… to maximize productivity a system for actively damping the crane load has been developed. This paper discusses an active damping system using state feedback control for a crane load modeled as a two-dimensional pendulum. Mathematical analysis indicates that the control theory used to damp the …
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Discovery and investigation of the novel overall activity allosteric regulation of the Bacillus subtilis class Ib ribonucleotide reductase
… also led to the discovery of tightly bound dAMP associated with a that increases the susceptibility of RNR to dATP inhibition. The potential physiological importance of dAMP is supported by studies examining YmaB, the unique fourth member of the B. subtilis RNR operon, which revealed this …
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Angular trapping of a mirror using radiation pressure
… I present optical springs as a</p> <p>tool to damp the motion of a mirror. I discuss the design and implementation of a single</p> <p>degree-of-freedom optical spring system and the importance of the photothermal</p> <p>eect in properly predicting optical spring behavior.</p> <p>I also present …
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Inter-area oscillation damping in large scale power systems with unified power flow controllers
… through it. These oscillations do not usually damp out in tie-lines unless certain controls are applied to the system. Local and inter-area oscillations have traditionally been controlled by Power System Stabilizers (PSS). However, Flexible Alternating Current Transmission Controllers (FACTS) …
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Rats, water, and disseminated sclerosis: an œtiological study
… sclerosis give a history of exposure to damp, especially of the hands and feet. 2.) That a large proportion give also a history of association with rats at home or at work. 3.) That a study of the occupation of those dying of the disease in England and ';ales in 1925 shows a heavy …
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Modeling, estimation and control for serial flexible robot arms
… is verified with experiments. In order to damp out he oscillations multi-link flexible arms caused by the reference command, an optimized input shaping algorithm for multiple frequency ranges is presented. The results are confirmed with FEA analysis and experiments. The controllability of …
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The effects of E-cigarettes on pulmonary inflammation and inflammasome activation
… (Pathogen Associated Molecular Pattern) and a DAMP (Danger Associated Molecular Pattern) which result in the processing of capsase-1, interleukins 1ȕ and 18, along with gasdermin D, leading to inflammatory cell death called pyroptosis. As E-vapour has been shown to have pro-inflammatory effects …
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Exploring the bidirectional interface between stress and innate immunity: a focus on glucocorticoid and TLR4-MyD88 signalling
… death and danger-associated molecular pattern (DAMP)-related protein release. Here, a low concentration of corticosterone increased ATP-induced BV2 cell motility. Signalling via GR, a stress-like concentration of Corticosterone and Dexamethasone caused an increase in cytotoxicity and HMGB1 DAMP …
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Re-thinking the possibility of the urban roof space
… in an "unfriendly manner" creating dark and damp spaces on ground level where people are not willing to stay. These kinds of dark, damp and "un-friendly" environments are not beneficial to people. Because people are looking for recreational spaces in an urban environment, the recreational, …
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Robot gripper control system using PVDF piezoelectric sensors
… uses PVDF piezoelectric sensors to actively damp exerted force. By using a low-input-resistance amplifier to sense the current developed by the PVDF sensor, an output proportional to the rate of change of the force exerted by the gripper is obtained. The signals from the PVDF sensor and a …
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Active vibration isolation for flexible payloads
… frequency sinusoidal vibration disturbances, (2) damp the transient response of a flexible payload to step disturbances, and (3) eliminate isolator static deflections under conditions of gradually changing steady acceleration levels. An active vibration isolation system was developed and an …
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Coupling of the intertropical convergence zone and the Hadley cells to the ocean's circulation
… contrast, I find the STCs act to strongly damp the resulting ITCZ shift through their cross-equatorial heat transport, which partially compensates the imposed heating contrast. Coupled to the Hadley cells and ITCZ by the trade winds, heat transport by the STCs always acts to weaken ITCZ …
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Magnetic Damping of Thermocapillary Convection in the Floating-Zone Growth of Semiconductor Crystals
… has been conducted in the area of the magnetic damping of thermocapillary convection in floating zones. Both steady and unsteady flows have been investigated. Due to the added complexities in solving Maxwells equations in these magnetohydrodynamic problems and due to the thin boundary layers in …
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Adaptive control of flexible joint robot manipulators: A singular perturbation approach
… a rigid robot together with a fast controller to damp the elastic oscillations of the joints. The mathematical details and rigorous stability proofs of this algorithm are presented. Using the composite Lyapunov theory for singularly perturbed systems, sufficient conditions for adaptive trajectory …
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