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 42 for “"Operating mode"”.
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Data driven low-bandwidth intelligent control of a jet engine combustor
… for navigating the input space of an un-modeled combustor system between desired operating conditions while avoiding regions of instability and blow-out. An experimental procedure is discussed for identifying regions of instability and gathering sufficient data to build a data-driven …
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Linking travel demand management and emission estimation tools
… of the four step travel demand forecasting models for each emission analysis. This could delay the process of approving a transportation program to be included in the State Implementation Plan. To simplify the process of emission impact analysis of TDMs using TDM software, a link between TDM …
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Stability of non-diagonalizable switched linear systems on time scales.
… logic that can abruptly change the system's operating mode, such as in the transmission of a vehicle or on computer-controlled real-time networks. This coupling of a dynamical system with discrete logic is difficult to model on standard time domains, especially if the switching events are …
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Optimization of the coagulation process at the Carvins Cove Water Treatment Plant
… and pH were monitored to determine the optimum operating mode for the Carvins Cove water treatment plant in Virginia during June and July, 1979. Results indicated that none of the treatment configurations tested produced significantly different results. Marginal improvement in turbidity removal …
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Benchmarking, Characterization and Tuning of Shell EcoMarathon Prototype Powertrain
… the 2015 competition is to analyze the unique operating mode that the powertrain undergoes during competition and improve their current package to increase fuel efficiency. In this study, fuel delivery, ignition timing and engine temperature are experimentally varied to observe trends in steady …
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A High-Efficiency Hybrid Resonant Microconverter for Photovoltaic Generation Systems
… the highly-efficient series resonant converter operating near the series resonant frequency. Two different hybrid modes of operation are introduced in order to add wide input-voltage regulation capability to the series resonant converter while achieving high efficiency through low circulating …
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Design of a wideband, 100 W, 140 GHz gyroklystron amplifier
… has five cavities and operates in the TE(0,2) mode with a low power electron beam. The design was performed using MAGY, a nonlinear code for modelling gyrotron devices. The design process of the gyroklystron starting from the linear theory to the optimization of the final design in MAGY has …
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A generalized machine requirements planning algorithm for serial flow machining systems
… technology makes the use of machine requirements modelling particularly attractive, and the vast capital investment in machining equipment offers significant opportunity for savings through optimization. The machine requirements problem must be modelled as a mixed integer linear program. However, …
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Distributed Contention-Free Access for Multi-hop IEEE 802.15.4 Wireless Sensor Networks
… is proposed to implement a new IEEE 802.15.4 operating mode, namely the synchronized peer-to-peer mode. This mode is designed to enable the standard's low-power features in peer-to-peer multi-hop-ready topologies. The second contribution is a distributed Guaranteed Time Slot (dGTS ) management …
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CFD modelling and investigation of two-stroke dual-fuel marine engines with high pressure gas admission
… In order to understand in-depth the full-cycle operating processes in a two-stroke dual fuel marine engine with high-pressure gas direct injection, the related CFD models were customized and developed by the use of ANSYS Fluent, and validated by employing available experimental data. …
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Modeling and Production of Bioethanol from Mixtures of Cotton Gin Waste and Recycled Paper Sludge
… (FPU)/g substrate. A three-parameter kinetic model with convergent property based on enzyme deactivation and its analytical expression were derived. Using nonlinear regression, the parameters of the model were determined from the experimental data of hydrolytic kinetics of the mixtures. Based …
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Development of Atomic Force Microscopy Modalities Using Dissipation Signal for Enhancing the Sensitivity of Photo-Induced Force Detection
… these techniques exists spectroscopic scanning modes, such as photo-induced force microscopy (PiFM). PiFM relies on an infrared laser (IR) to excite molecular vibrations, and the resulting photo-induced dipole force is detected by the AFM. The IR laser is used to induce a near-field optical …
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Experimental study of photonic band gap accelerator structures
… (PBG) structure. Major advances in higher order mode (HOM) damping are required for the next generation of TeV linear colliders. In this work, PBG HOMs are studied theoretically and experimentally for the first time. PBG HOMs are shown in simulation to be low Q lattice modes, removed from the …
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Development of a high efficiency dilute gasoline engine
… second engine in single Diesel injection pulse operating mode and resulting emissions and fuel consumption data were compared to stock engine performance information. Testing of HEDGE operation was not conducted due to time constraints related to the project. Baseline Diesel operation data will …
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A novel wideband gyrotron travelling wave amplifier
… reported as yet. The use of a very high order operating mode in a novel mode selective interaction structure namely, a quasioptical open confocal waveguide makes the gyro-TWT potentially capable of up to 100 kW CW operation at 140 GHz and at 94 GHz in the W-band (75-110 GHz) if built to …
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Design of control electronics for the Ram Energy Distribution Detector
… is reviewed as well, including the instrument's operating mode, and timing scheme. Test data showing the basic functionality of the instrument are then presented. Bench tests validate the design by confirming its ability to control voltages and measure small electron currents. End-to-end tests …
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MADE IN RURAL CHINA--The analysis and redesign of the urbanization trajectory for e-commerce villages in rural China
… and rebuilding of cities as urbanization mode, developing countries may take the informal economic site as a great chance to make a profit since they have enough reasons to rebuild those areas. They are often mentioned as a problem that needs to be solved and, in most cases, it means …
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Design and assessment of a super high speed, hybrid hydrofoil/SWATH crew boat
… concept (Brizzolara, 2010), maintaining the dual operating mode: foilborne to reach top speed of 85 knots in moderate sea states and a displacement SWATH to sail in the higher sea states. This vessel is expanding the family of unmanned hybrid SWATH vessels of Brizzolara and Chryssostomidis to …
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A 140 GHz gyro-amplifier using a confocal waveguide : theory and experimental results
… amplifier at 140 GHz. The gyro-TWT uses the HE06 mode of a confocal geometry as its operating mode. The linear and nonlinear theory of the confocal waveguide is presented, along with a quasi-optical approach for describing the modes of a confocal waveguide. Both the equations of motion and the …
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