Tesis sobre el tema "Steady-state analysi"
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MEMON, ZAIN ANWER. "Novel Modeling and Simulation Concepts for Power Distribution Networks". Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2922916.
Texto completoNguyen, Henry Q. "Steady state analysis of resonant converters". Honors in the Major Thesis, University of Central Florida, 1993. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/118.
Texto completoBachelors
Engineering
Electrical Engineering
Pan, Wen Hsiung. "Steady State Analysis of Tropospheric Chemistry". PDXScholar, 1991. https://pdxscholar.library.pdx.edu/open_access_etds/1262.
Texto completoFung, Tat-ching. "Steady state solutions of nonlinear dynamic systems /". [Hong Kong] : University of Hong Kong, 1989. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12760055.
Texto completo馮達淸 y Tat-ching Fung. "Steady state solutions of nonlinear dynamic systems". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1989. http://hub.hku.hk/bib/B31231809.
Texto completoTucher, Christopher A. "Steady-state oscillations of linear and nonlinear systems /". Online version of thesis, 1992. http://hdl.handle.net/1850/10990.
Texto completoYassin, Menna. "Steady State Hydroplaning Risk Analysis and Evaluation of Unsteady State Effects". Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7990.
Texto completoMcNulty, Craig R. "The complex reality of VO2 kinetics to steady state: Reassessment of the models used to quantify and interpret VO2 kinetics, steady state, and time to steady state". Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/108025/2/Craig_McNulty_Thesis.pdf.
Texto completoLee, Chong Kyong 1973. "Continuation methods for steady state analysis of oscillators". Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99777.
Texto completoCresswell, Charles. "Steady state load models for power system analysis". Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/3846.
Texto completoSkånøy, Thomas. "Steady-state and dynamic converter modeling in system analysis". Thesis, Norwegian University of Science and Technology, Department of Electrical Power Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9545.
Texto completoThis master thesis was executed at the Department of Electrical Power Engineering at the Norwegian University of Science and Technology (NTNU). The thesis was initiated to establish and evaluate an alternative model representation of the facility at Ormen Lange. Traditionally, a PQ-model has been used to represent Ormen Lange. This thesis, however, has implemented three two-terminal dc line models (converter models) to represent the facility. The first part of the thesis starts with an overall introduction to the basic principles of configuration, operation and control of HVDC systems. The objective of this part is to provide an overview of the HVDC technology which is treated in detail later in the thesis. The software tool Power System Simulator for Engineering (PSS/E) was used for both power flow and dynamic simulations performed in this thesis. The second part of the thesis describes the power flow establishment, and constitutes the basis for both power flow and dynamic simulations. The main focus in this part is the modeling of the two-terminal dc line model which is implemented at Nyhamna. Data for the two-terminal dc line model is presented on three consecutive data records. Since these data enables not only power flow analysis but also establishes the initial steady-state for the dynamic analysis, a detailed description is presented in this section. The latter data is based on technical information provided by ABB and default values in PSS/E. The third part of the thesis presents the power flow simulations. The objective of this part is to gain knowledge about the performance of the two-terminal dc line model implemented at Ormen Lange. This knowledge facilitates the understanding of the following dynamic simulations. Two cases were studied to simulate the action of the converter control system when exposed to a depression in rectifier bus voltage. In the first case the rectifier transformer tap settings were adjustable. In the second case the rectifier tap settings were locked to its initial value. The purpose of locking the tap setting was to represent a transient situation where the tap changer action is too slow and hence not considered. The result showed that with adjustable rectifier tap settings, the depression in rectifier bus voltage is handled by reducing the rectifier transformer tap position and firing delay angle. This increased the voltage on the valve side of the rectifier transformer and enabled the rectifier to maintain dc current control. Consequently, the scheduled dc values were unaffected by the depression in rectifier bus voltage. However, with the rectifier tap setting locked, the transformer did not boost the voltage on the valve side of the rectifier transformer. This caused the control logic to reduce the rectifier firing delay angle to its minimum, and the inverter assumed control of the dc current. With the inverter in control of the current, the scheduled dc current was reduced by a fraction equal to the current margin along with the remainder dc values. Hence, the presence of an adequate rectifier transformer setting is essential for the two-terminal dc line model to maintain scheduled dc values during voltage depression. All simulations showed that a voltage depression at the rectifier bus leads to a reduction in rectifier reactive power consumption. This is due to the action from the control logic which reduced the rectifier firing delay angle to counteract the voltage depression. The greatest reduction in rectifier reactive consumption was experienced when the rectifier firing delay angle was reduced to its minimum value. Hence, in situations with depressed bus voltage, the latter operation of the converter control logic causes the two-terminal dc line model to exhibit less stress to the ac system than the PQ-model. The fourth part of this thesis contains a detailed description of the dynamic modeling of the two-terminal dc line model (CDC4T). Many of the chosen parameters are based on an example in [15], and do not necessary represent realistic values. The final part of this thesis presents the dynamic simulations. The objective of this part is to analyze the control actions of the CDC4T model under normal regulation and during temporary overriding the normal regulation. This was performed by introducing ac system faults which depressed the rectifier bus voltage to a varying degree. Further, this part analyzed the consequence of using the dynamic model CDC4T to represent Ormen Lange instead of a PQ-model. The purpose was to determine whether the response from the ac system differs when using the CDC4T model instead of a PQ-model. It is important to emphasize that this part does not evaluate stability issues associated with the implementation of CDC4T. The results from the dynamic simulations showed that CDC4T exhibited an instantaneous response to changes in rectifier ac voltage. This is because CDC4T is a pseudo steady-state dynamic model which omits the L/R dynamic of the dc system and high frequency firing angle controller dynamics. Further, the results revealed an important characteristic of the CDC4T model. After fault clearance, the rectifier bus exhibited small voltage fluctuations. The rectifiers compensated these fluctuations by adjusting their firing delay angles correspondingly. Consequently, the latter resulted in fluctuations in reactive power consumption. This means that the ac system perceives the CDC4T model as a varying reactive load following fault clearance. Comparing the ac system response when using the CDC4T model and when using the PQ-model, the results showed that the main difference was CDC4Ts generation of reactive power fluctuations. These fluctuations were experienced in the transmission line going into Nyhamna and Viklandet, and were substantial compared to the initial loading of the transmission lines. Two arguments were used to substantiate why the response from the CDC4T model only differs from the PQ-model in terms of reactive power fluctuations: I. The calculated value of the short circuit ratio at Nyhamna indicated a strong interconnected ac/dc system. II. The dynamic behavior of the pseudo-steady state model, CDC4T, is limited. Both the L/R dynamic of the dc line, smoothing reactors and high frequency controller dynamics are omitted. In further studies where converter modeling at Ormen Lange is considered, a more complex dynamic dc model should be utilized to represent the converters. This model should include L/R dynamic of the dc system and high-speed controller dynamics, and will thus influence the ac system to a greater extent than CDC4T. Further, the model establishment should focus on achieving a sufficiently realistic load representation of Ormen Lange. In this manner, the converters influence on system stability can be evaluated.
Hill, Nathan R. "Analysis of non-steady state physiological and pathological processes". Thesis, University of Oxford, 2008. http://ora.ox.ac.uk/objects/uuid:c96c88a6-5dd4-43ce-989b-ac524d2654ea.
Texto completoFerroni, Paolo Ph D. Massachusetts Institute of Technology. "Steady state thermal hydraulic analysis of hydride fueled BWRs". Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/41263.
Texto completoThesis (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2006.
(cont.) Since the results obtained in the main body of the analysis account only for thermal-hydraulic constraints, an estimate of the power reduction due to the application of neutronic constraints is also performed. This investigation, focused only on the "New Core" cases, is coupled with an increase of the thickness of the gap separating adjacent bundles from 2 to 5 mm. Under these more conservative conditions, the power gain percentages are lower, ranging between 24% and 43% (depending on the discharge burnup considered acceptable) for the upper pressure drop limit, and between 17% and 32% for the lower pressure drop limit.
(cont.) The benefits of the latter approach are evident since the space occupied by the bypass channel for cruciform control rod insertion becomes available for new fuel and a higher power can be achieved. The core power is constrained by applying thermal-hydraulic limits that, if exceeded, may induce failure mechanisms. These limits concern Minimum Critical Power Ratio (MCPR), core pressure drop, fuel average and centerline temperature, cladding outer temperature and flow-induced vibrations. To limit thermal-hydraulic instability phenomena, core power and coolant flow are constrained by fixing their ratio to a constant value. In particular, each BWR/5 core has been analyzed twice, each time with a different pressure drop limit: a lower limit corresponding to the pressure drop of the reference core and an upper limit 50% larger. It has been demonstrated that, in absence of neutronic constraints and with the maximum allowed pressure drop fixed at the upper limit, the implementation of the hydride fuel yields power gain percentages, with respect to oxide cores chosen as reference, of the order of 23% when its implementation is performed following the "Backfit" approach and even higher (50-70%) when greater design freedom is allowed in the core design, i.e. in the "New Core" approach. Should the maximum allowed pressure drop be fixed at the lower limit, the power gain percentage of the "Backfit" approach would decrease to 17%, while that of the "New Core" approach would remain unchanged, i.e. 50-70%.
This thesis contributes to the Hydride Fuel Project, a collaborative effort between UC Berkeley and MIT aimed at investigating the potential benefits of hydride fuel use in Light Water Reactors (LWRs). Considerable work has already been accomplished on hydride fueled Pressurized Water Reactor (PWR) cores. This thesis extends the techniques used in the PWR analysis to examine the potential power benefits resulting from the implementation of the hydride fuel in Boiling Water Reactors (BWRs). This work is the first step towards the achievement of a complete understanding of the economic implications that may derive from the use of this new fuel in BWR applications. It is a whole core steady-state analysis aimed at comparing the power performance of hydride fueled BWR cores with those of typical oxide-fueled cores, when only thermal-hydraulic constraints are applied. The integration of these results with those deriving from a transient analysis and separate neutronic and fuel performance studies will provide the data required to build a complete economic model, able to identify geometries offering the lowest cost of electricity and thus to provide a fair basis for comparing the performance of hydride and oxide fuels. Core design is accomplished for two types of reactors: one smaller, a BWR/5, which is representative of existing reactors, and one larger, the ESBWR, which represents the future generation of BWRs. For both, the core design is accomplished in two ways: a "Backfit" approach, in which the ex-bundle core structure is identical to that of the two reference oxide cores, and a "New Core" approach, in which the control rods are inserted into the bundles in the form of control fingers and the gap between adjacent bundles is fixed optimistically at 2 mm.
by Paolo Ferroni.
S.M.
Parathiras, Achilleas N. "Steady state of deformation analysis for a clayey sand". Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/46057.
Texto completoThe steady state of deformation was analyzed for a clayey sand. The use of lubricated end platens was evaluated and proved to reduce the scatter in steady state data. The effect of different data corrections in a steady state analysis was also evaluated. For this investigation the parabolic area assumption better approximated the deformed specimen shape than the right cylinder assumption. It was concluded that the use of different area corrections greatly influences the slope and position of the steady state line.
Master of Science
Haddleton, Steven W. "Steady-state performance of discrete linear time-invariant systems /". Online version of thesis, 1994. http://hdl.handle.net/1850/11795.
Texto completoKaramullaoglu, Gulsun. "Dynamic And Steady-state Analysis Of Oxidative Dehydrogenation Of Ethane". Phd thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606269/index.pdf.
Texto completoand the small Cr2O3 and V2O4 phases of Cr-V-O were revealed. In H2-TPR, both catalysts showed reduction behaviour. From XPS the likely presence of Cr+6 on fresh Cr-O was found. On Cr-V-O, the possible reduction of V+5 and Cr+6 forms of the fresh sample to V+4, V+3 and Cr+3 states by TPR was discovered through XPS. With an O2/C2H6 feed ratio of 0.17, Cr-O exhibited the highest total conversion value of about 0.20 at 447°
C with an ethylene selectivity of 0.82. Maximum ethylene selectivity with Cr-O was obtained as 0.91 at 250°
C. An ethylene selectivity of 0.93 was reached with the Cr-V-O at 400°
C. In the experiments performed by using CO2 as the mild oxidant, a yield value of 0.15 was achieved at 449°
C on Cr-O catalyst. In dynamic experiments performed over Cr-O, with C2H6 pulses injected into O2-He flow, the possible occurrence of two reaction sites for the formation of CO2 and H2O was detected. By Gaussian fits to H2O curves, the presence of at least three production ways was thought to be probable. Different from Cr-O, no CO2 formation was observed on Cr-V-O during pulsing C2H6 to O2-He flow. In the runs performed by O2 pulses into C2H6-He flow over Cr-V-O, formation of CO rather than C2H4 was favored.
Fuerte, Esquivel Claudio Rubén. "Steady state modelling and analysis of flexible AC transmission systems". Thesis, University of Glasgow, 1997. http://theses.gla.ac.uk/4616/.
Texto completoRefoufi, L. "Steady state analysis of the chopper controlled static Kramer drive". Thesis, University of Newcastle Upon Tyne, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239814.
Texto completoSukhavasi, Vijay Krishna. "Steady State Testing and Analysis of a Phasor Measurement Unit". Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/46328.
Texto completoMaster of Science
Han, Peipei. "Decoding Steady-State VisualEvoked Potentials(SSVEPs)- Implementation and Performance Analysis". Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-432289.
Texto completoJordi, Bastien. "Steady-state solvers for stability analysis of vortex dominated flows". Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/31875.
Texto completoRepalle, Jalaja. "ROBUST SHAPE DESIGN TECHNIQUES FOR STEADY-STATE METAL FORMING PROCESSES". Wright State University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=wright1158776359.
Texto completoCamacho, José Roberto. "Steady-state analysis of directly connected synchronous machines and HVdc converters". Thesis, University of Canterbury. Electrical and Electronic Engineering, 1993. http://hdl.handle.net/10092/6015.
Texto completoHuning, Alexander. "A steady state thermal hydraulic analysis method for prismatic gas reactors". Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52196.
Texto completoGorbushin, Nikolai. "Analysis of admissible steady-state fracture processes in discrete lattice structures". Thesis, Aberystwyth University, 2017. http://hdl.handle.net/2160/352f6a78-6e2f-4936-9389-a439e02fdfc0.
Texto completoOTT, Gustavo. "Performance analysis of a framework for auditory steady-state response detection". Universidade Catolica de Pelotas, 2017. http://tede.ucpel.edu.br:8080/jspui/handle/tede/617.
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The Auditory Steady-State Response (ASSR) is a periodic electrical response from the brain which is generated by a healthy or impaired ear without conduction hearing loss subject. This response is evoked by presenting a subject to a periodically varying continuous acoustic signal, typically a sinusoidally modulated tone. The response consists of a waveform whose constituent discrete frequency components have the same periodicity as that of the acoustic signal and remain constant in amplitude and phase over an infinitely long time period. ASSR has been used to objectively assess hearing thresholds for hearing impairment diagnosis, in contrast to traditional subjective methods such as auditory brain-stem responses and audiometry. The objective of this study is to implement experimental setups that detect simulated ASSRs in single and multiple response recordings in order to asses detector performance in different approaches of signal recording parameters and signal processing techniques. The experimental setups were implemented using the MATLAB environment, in which three test scenarios were also developed: (i) a single channel ASSR detector in which the statistical detection tests F test, phase coherence (PC), magnitude-squared coherence (MSC) and Hotteling’s T 2 circular (T2) were used for comparative performance evaluation; (ii) a single channel ASSR detector in which the traditional sweep-by-sweep (SBS) averaging approach performance was compared to the proposed epoch-by-epoch (EBE) averaging aproach; and (iii) a multiple channel ASSR detector in which three Independent Component Analysis (ICA) algorithms – JADE, SOBI, and WASOBI – were applied for comparative performance evaluation from the reference method, in which ICA was not applied. The performance evaluation method was the Receiver Operating Characteristic (ROC) analysis, in which the Area Under the Curve (AUC) metric was used to estimate the detector’s accuracy levels for ASSR detection. From the results of the first test scenario it was concluded that the T2 and MSC tests presented the best overall performance, specially at lower SNR conditions. Results from scenario 2 indicated that the SBS approach resulted in higher accuracy levels after the transitory period of the AUC curve related to test time duration, while the EBE resulted in the steepest AUC curves for the first seconds of test time duration. From the results of scenario 3 it was not observed significant ASSR’s detection time reduction when ICA algorithms were applied in situations closely related to hearing threshold estimation.
A Resposta Auditiva de Estado Estável (RAEE) é uma resposta elétrica periódica gerada pelo cérebro em pacientes com ouvidos saudáveis. Esta resposta é evocada ao ser apresentado ao paciente um estímulo acústico contínuo que varia periodicamente, tipicamente um tom modulado por um sinal sinusoidal. A resposta é constituída por componentes em frequência que têm a mesma periodicidade do estímulo e permanecem constantes em termos de amplitude e fase por um período de tempo infinitamente longo. As RAEEs têm sido utilizadas para avaliar de forma objetiva os limiares de audição para diagnóstico de perda auditiva, em contraste aos métodos tradicionais subjetivos, como a audiometria. O objetivo deste trabalho é a implementação de estruturas experimentais que detectem RAEEs simuladas em abordagens de captação de canal único e de múltiplos canais a fim de avaliar o desempenho do detector em diferentes abordagens de processamento de sinal. As estruturas experimentais foram implementadas utilizando o ambiente MATLAB, no qual três cenários de teste foram desenvolvidos: (i) um detector de RAEE para canal simples com o qual os desempenhos dos testes estatísticos F, coerência de fase (PC), coerência da magnitude ao quadrado (MSC) e T 2 circular de Hotteling (T2) foram comparados; (ii) um detector de RAEE para canal simples com o qual o desempenho a abordagem de promediação tradicional sweep-a-sweep (SBS) foi comparado com o método proposto época-a-época (EBE); e (iii) um detector de RAEE para múltiplos canais com o qual o desempenho de três algoritmos de análise de componentes independentes (ICA) – JADE, SOBI e WASOBI – foram comparados com a detecção sem o uso de ICA. O método de avaliação do desempenho foi a análise Receiver Operating Characteristic (ROC), no qual a métrica de área sob a curva (AUC) for utilizada para estimar os níveis de acurácia da detecção das RAEEs. A partir dos resultados do cenário 1 concluiu-se que os testes T2 e MSC apresentaram os melhores desempenhos, especialmente para condições de baixa razão sinal-ruído. Resultados do cenário 2 indicaram que a abordagem SBS apresentou maiores níveis de acurácia após o período transitório da curva AUC, enquanto a abordagem EBE resultou em incrementos de acurácia mais abruptos para os primeiros segundos de duração do teste. A partir dos resultados do cenários 3 não foi observada uma redução significativa no tempo de detecção das RAEEs quando o ICA foi aplicado em situações próximas da estimação de limiar auditivo.
Kathi, Lokesh. "Steady-State Analysis of PWM Z-Bridge Source DC-DC Converter". Wright State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=wright1453223069.
Texto completoPIRES, Robson Celso. "Complex-Valued Steady-State Models as Applied to Power Flow Analysis and Power System State Estimation". reponame:Repositório Institucional da UNIFEI, 2018. http://repositorio.unifei.edu.br/xmlui/handle/123456789/1359.
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Nonlinear systems of equations in complex domain are frequently encountered in applied mathematics, e.g., power systems, signal processing, control theory, neural networks and biomedicine, to name a few. The solution of these problems often requires a first- or second-order approximation of these nonlinear functions to generate a new step or descent direction to meet the solution iteratively. However, such methods cannot be applied to real functions of complex variables because they are necessarily non-analytic in their argument, i.e., the Taylor series expansion in their argument alone does not exist. To overcome this problem, the nonlinear function is usually redefined as a function of the real and imaginary parts of its complex argument so that standard methods can be applied. Although not widely known, it is possible to build an expansion of these nonlinear functions in its original complex variables by noting that functions of complex variables can be analytic in their argument and its complex conjugate as a whole. This property lies in the fact that if a function is analytic in the space spanned by ℜ{} and ℑ{}in ℝ, it is also analytic in the space spanned by and * in ℂ. The main contribution of this work is the application of this methodology to a complex Taylor series expansions aiming algorithms commonly used for solving complex-valued nonlinear systems of equations emerged from power systems problems. In our proposal, a complex-valued power ow analysis (CV PFA) model solved by Newton-Raphson method is revisited and enhanced. Nonetheless, especially emphasis is addressed to Gauss-Newton method when derived in complex domain for solving power system state estimation (CV PSSE) problems, whichever they are applied in transmission or distribution systems. The factorization method of the complex Jacobian matrices emerged from CV PFA and CV PSSE approaches is the Three Angle Complex Rotation (TACR) algorithm that comes from the Givens Rotations algorithm in real domain. In this research one demonstrates that Wirtinger derivatives can lead to greater insights in the structure of both problems, i.e., CV PFA & CV PSSE. Moreover, it can often be exploited to mitigate computational overhead, storage cost and enhance the network's component modeling as FACTS devices, e.g., STATCOM, VSC-HVDC, besides easily handle PMU measurements and embedding new technologies towards smart grids. Finally, in order to add numerical robustness, a fourth-order Levenberg-Marquardt algorithm is employed to the CV PFA & CV PSSE approaches because of its nice bi-quadratic convergence property, instead of the well-known quadratic convergence property of the classical Newton-Raphson and Gauss-Newton algorithms. Recall that these latter algorithms are prone to collapse when the power system network is ill-conditioned, i.e., it is heavily loaded or presents branches with high R/X ratio. These results are partially presented in this thesis because they are still under study and development. But most of them will appear in forthcoming papers submitted to IEEE-PES Transactions on Power Systems and coming up Top Conferences.
Bandali, Bardia. "Steady State Analysis of Nonlinear Circuits using the Harmonic Balance on GPU". Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/26251.
Texto completoMavros, Georgios. "Tyre models for vehicle handling analysis under steady-state and transient manoeuvres". Thesis, Loughborough University, 2005. https://dspace.lboro.ac.uk/2134/7904.
Texto completoAl-Zahawi, B. A. T. "Steady-state analysis of the static Kramer drive with alternative recovery systems". Thesis, University of Newcastle Upon Tyne, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380751.
Texto completoKhan, Shahbaz. "Reappraisal of steady state and time-variant analysis of tile drainage systems". Thesis, University of Birmingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690128.
Texto completoNazário, Rafael Igor. "Kinematical analysis during swmming at and above the maximal lactate steady state". Master's thesis, Faculdade de Desporto da Universidade do Porto, 2011. http://hdl.handle.net/10216/57114.
Texto completoJiang, Wenwei. "Spectral-based Substructure Transfer Path Analysis of Steady-state and Transient Vibrations". University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1273168454.
Texto completoNazário, Rafael Igor. "Kinematical analysis during swmming at and above the maximal lactate steady state". Dissertação, Faculdade de Desporto da Universidade do Porto, 2011. http://hdl.handle.net/10216/57114.
Texto completoAktaran-Kalayci, Tuba. "Steady-State Analyses: Variance Estimation in Simulations and Dynamic Pricing in Service Systems". Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/13993.
Texto completoLakkireddy, Jahnavi. "Steady State Voltage Stability Enhancement Using Shunt and Series FACTS Devices". ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1881.
Texto completoAl-Hoor, Wisam. "UNIFIED STEADY-STATE COMPUTER AIDED MODEL FOR SOFT-SWITCHING DCDC CONVERTERS". Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3959.
Texto completoM.S.E.E.
Department of Electrical and Computer Engineering
Engineering and Computer Science
Electrical Engineering
Nabavi, Seyed Ghavamoddin. "Statistical Analysis of Steady State Response in RF Circuits via Decoupled Generalized Polynomial Chaos". Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35293.
Texto completoBallukja, Erjon. "Power Quality Analysis in DC/DC Converters under Steady State and Transient Conditions". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
Buscar texto completoSpicer, Timothy C. "Sensitivity analysis of transient and steady state characteristics of surface ship progressive flooding". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA370876.
Texto completo"September 1999". Thesis advisor(s): Fotis A. Papoulias. Includes bibliographical references (p. 59). Also available online.
Hioe, Yunior. "Mold thermal design and quasi steady state cycle time analysis in injection molding". Connect to resource, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1141840509.
Texto completoZatschler, Harf. "Steady-state and response time analysis of modulated queues and networks with batches". Thesis, Imperial College London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409310.
Texto completoZhang, Shuqi y 张书奇. "Periodic steady-state analysis of nonlinear oscillators based on multivariate polynomial roots finding". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/208018.
Texto completopublished_or_final_version
Electrical and Electronic Engineering
Master
Master of Philosophy
CHACON, AMERICO BUSTAMANTE. "A COMPUTER IMPLEMENTATION FOR FINITE ELEMENT ANALYSIS OF UNCONFINED STEADY STATE FLOW PROBLEMS". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1998. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=1515@1.
Texto completoO presente trabalho apresenta a implementação computacional pelo método dos elementos finitos de procedimentos para análise de problemas de escavação e de fluxo permanente bidimensional, não confinado, para solos saturados. Tais procedimentos, particularmente indicados para investigação do comportamento mecânico/hidráulico de barragens de terra, vem completar o trabalho iniciado por Parra (1996) para análise do comportamento de barragens sob carregamentos estático e sísmico. Foram implementadas duas técnicas para simulação de escavações, obtendo-se, em ambas, resultados numéricos praticamente idênticos. O procedimento para análise de fluxo permanente foi baseado na proposição de Bathe e Khoshgoftarr (1979), a qual considera a situação de fluxo não-confinado como problema não linear, porém conservando a configuração original da malha de elementos finitos. Os resultados numéricos obtidos neste trabalho foram detalhadamente comparados com os valores publicados na literatura, numéricos ou analíticos, como forma de assegurar a confiabilidade das implementações computacionais. A previsão do comportamento da barragem de terra Macusani, a ser construída no Peru, foi estudada neste trabalho, nos aspectos referentes às fases de escavação, construção, primeiro enchimento do reservatório e determinação da superficie de infiltração de fluxo permanente. Os resultados assim obtidos podem ser eventualmente úteis no detalhamento do projeto final da obra.
This work presents a computer implementation for finite element analysis of excavation problems and unconfined steady state flow through saturated soils. These computer routines are particularly useful for the study of earth dams and they were written with the aim to pursue the development of a numerical model (Parra, 1996) devised to investigate the behavior of earth dams under static and seismic loading. Two techniques were implemented for excavation simulations, with both yielding the some numerical results. For the unconfined fluid flow problem the technique proposed by Bathe and Khoshgoftaar (1979) was adopted, which recasts the problem in a non-linear form but keeps the same basic finite element mesh. The results computed in this research were compared with other analytical and numerical values published in the literature, in order to ensure, as much as possible, the feasibility and efficiency of the computer implementations. The behavior prediction of the Macusani earth dam, to be built in Peru, was also studied in this research, focusing on several aspects related to its planned construction: the excavation, the construction itself and the first reservoir filling. This results may eventually be useful for the final engineering design of the Macusani dam.
El presente trabajo presenta la implementación computacional de procedimentos para análisis de problemas de excavación y de flujo permanente bidimensional, para suelos saturados utilizando el método de elementos finitos. Tales procedimentos, particularmente indicados para la investigación del comportamiento mecánico/hidráulico de represas, completa el trabajo iniciado por Parra(1996) para análisis del comportamiento de represas bajo sobrecarga estática y sísmica. Se implementaron dos técnicas para simulación de excavaciones, obteniendo, en ambas, resultados numéricos prácticamente idénticos. El procedimento para análisis de flujo permanente tubo como base la propuesta de Bathe y Khoshgoftarr (1979), que considera la situación de flujo no confinado como problema no lineal, pero conservando la configuración original de la malla de elementos finitos. Los resultados numéricos obtenidos em este trabajo fueron detalladamente comparados con los valores publicados en la literatura, numéricos o analíticos, para asegurar la confiabilidad de las implementaciones computacionales. La previsión del comportamiento de la represa de Macusani, que será construida en Perú, fue estudiada en este trabajo, especifícamente los aspectos vinculados a las fases de excavación, construcción y determinación de la superficie de infiltración de flujo permanente. Los resultados obtenidos pueden ser eventualmente útiles en el proyecto final de la obra.
Chien, Ying-Che. "Some exact and approximate methods for large scale systems steady-state availability analysis". Diss., The University of Arizona, 1995. http://hdl.handle.net/10150/187066.
Texto completoLi, Fang. "An Analysis of the Linked-pulse in Steady-state Free Precession in MRI". PDXScholar, 1994. https://pdxscholar.library.pdx.edu/open_access_etds/4769.
Texto completoBradfield, M. F. A. (Michael Ford Alexander). "Continuous production of succinic acid by Actinobacillus succinogenes : steady state metabolic flux variation". Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/40826.
Texto completoDissertation (MEng)--University of Pretoria, 2013.
gm2014
Chemical Engineering
unrestricted
Eickhoff, Mirko. "Sequential Analysis of Quantiles and Probability Distributions by Replicated Simulations". Thesis, University of Canterbury. Computer Science and Software Engineering, 2007. http://hdl.handle.net/10092/1238.
Texto completoChang, Byeong-Yun. "Estimation Techniques for Nonlinear Functions of the Steady-State Mean in Computer Simulation". Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4917.
Texto completo