Tesis sobre el tema "Second-order effect"
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Matalgah, Ziyad. "Second Order Rotational Effect On Nonradial Oscillations In Delta-scuti Stars". Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12604741/index.pdf.
Texto completoMatalgah, Zıyad. "Second order rotational effect on nonradial oscillations in ℓ-scuti stars". Ankara : METU, 2004. http://etd.lib.metu.edu.tr/upload/12604741/index.pdf.
Texto completoDogan, Gulnur. "The Effect Of Rotation, Up To Second Order, On The Oscillation Frequencies Of Some Delta-scuti Stars". Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608873/index.pdf.
Texto completoMcCord, John J. "Investigating the topological order of an ansatz for the fractional quantum Hall effect in the half-filled second Landau level". Thesis, California State University, Long Beach, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10240257.
Texto completoThe Moore-Read Pfaffian and anti-Pfaffian states have been under scrupulous review as candidates which describe the fractional quantum Hall effect at filling factor 5/2. Quantum states in the universality class of the Moore-Read Pfaffian/anti-Pfaffian have non-trivial intrinsic topological order and support low-energy non-Abelian excitations that have applications in fault-tolerant topological quantum computing schemes. Both states are exact ground states of three-body Hamiltonians that explicitly break particle-hole symmetry. We study the topological order of a competing ansatz state &PSgr;2 that is the exact ground state of a two-body Hamiltonian that preserves particle-hole symmetry. In particular, we calculate the bipartite entanglement entropy and spectra in the lowest Landau level in the spherical geometry for &PSgr; 2. We perform such calculations for a finite number of electrons up to 14. We then extrapolate to the thermodynamic limit the topological entanglement entropy γ as a measure of the topological order of the ansatz and compare to the known value of the Moore-Read Pfaffian/anti-Pfaffian state. We also study the orbital entanglement spectra for &PSgr;2 and compare with the Moore-Read Pfaffian and two-body Coulomb ground states. We show that our extrapolation of γ lies within the uncertainty of the known value of γ for the Moore-Read Pfaffian state, and that the orbital entanglement spectra of &PSgr;2 assumes a similar structure to that of the two-body Coulomb interaction.
Manigault, Patrick Alexander. "Second order luminescent saturation effects in phosphors". Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/30700.
Texto completoZhang, Yanyang. "Second-order effects on uncertainty analysis calculations". Master's thesis, Mississippi State : Mississippi State University, 2002. http://library.msstate.edu/etd/show.asp?etd=etd-10292002-122359.
Texto completoHellström, Jonas. "Nanosecond optical parametric oscillators and amplifiers based on periodically poled KTiOPO4". Doctoral thesis, KTH, Physics, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3269.
Texto completoOptical parametric oscillators (OPOs) and optical parametricamplifiers (OPAs) constitute a class of optical frequencyconverting devices that have many possible applications, e.g.in range finding, molecular spectroscopy and medicine. They canconvert the frequency of the incident pump field with highefficiency, and generate two waves at new frequencies that willbe continuously tuneable over a wide spectral range. Virtuallyany wavelengths within the transparency region of the nonlinearmaterial can be generated if the material can bequasi-phasematched (QPM). In addition, QPM gives thepossibility to utilise the largest nonlinear tensor element ofthe material and allows walk-off free interaction between thewaves.
The aims of this thesis have been to investigate thepossibility to use QPM KTiOPO4crystals as nonlinear material in nanosecond OPOsand OPAs operating at room-temperature, and to explore theadvantages and shortcomings of these devices. The technique ofelectric field poling has been employed to implement the QPMstructure in flux grown KTiOPO4(KTP).
The main conclusion is that periodically poled KTP (PPKTP)is a suitable material to use in nanosecond OPOs and OPAs. Thematerial properties that foremost make KTP into an attractivenonlinear material are: The large value of the nonlinearcoefficient d33, the high resistance to optically inducedbreakdown, the low susceptibility to grey-track formation, theinsensitivity to the photorefractive effect, the widetransparency and the low coercive field.
The thesis shows that it is possible to pole large volumesof KTP with a high quality of the QPM structure. Highlyefficient nanosecond OPOs have been constructed during thisproject. Maximum conversion efficiencies have reached 45 % inthe case of a singly resonant OPO (SRO) built around a 3 mmthick PPKTP crystal. Total pulse energies for both the signal(1.72 µm) and the idler (2.8 µm) of up to 18 mJ wasreached and an average output power of 2 W was obtained forthis sample. However, up to 24 W was produced in a doublyresonant OPO operating close to degeneracy. The efficiencyreached 48 % for that case. Truly continuous and very widespectral tuning has also been demonstrated, as well as a narrowbandwidth OPO operating on one single longitudinal mode.
Keywords:optical parametric oscillators, opticalparametric amplifiers, quasi-phasematching, KTiOPO4, nonlinear optics, frequency conversion, periodicelectric field poling, ferroelectrics, high-order secondharmonic generation, electro-optic effect.
Mayer, Charlotte. "Nouveaux matériaux magnétocaloriques à base de terres rares pour la réfrigération magnétique". Phd thesis, Université Sciences et Technologies - Bordeaux I, 2011. http://tel.archives-ouvertes.fr/tel-00649399.
Texto completoGomes, Adriano de Araújo. "Algoritmo das projeções sucessivas para seleção de variáveis em calibração de segunda ordem". Universidade Federal da Paraíba, 2015. http://tede.biblioteca.ufpb.br:8080/handle/tede/8196.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
In this work it was developed a new strategy for intervals selection using the successive projections algorithm (SPA) coupled to N-PLS and U-PLS models, both with residual bilinearização (RBL) as a post-calibration step. The new algorithm coupled to N-PLS/RBL models was evaluated in two cases of studies. The first was simulated data for quantitation of two analytes (A and B) in the presence of a single interfering. On the second study was conducted a quantitation of ofloxacin in water in the presence of interferents (ciprofloxacin and danofloxacin) by means of liquid chromatography with diode array detection (LC-DAD) data modeling. The results were compared to the N-PLS/RBL model and the variables selection with the genetic algorithm (GA-N-PLS/RBL). In the first case of study (simulated data) were observed RMSEP values (x 10-3 in arbitrary units) for the analytes A and B in the order of 6.7 to 47.6; 10.6 to 11.4; and 6.0 to 14.0 for the N-PLS/RBL, Ga-N-PLS/RBL and the proposed method, respectively. On the second case of study (HPLC-DAD data) RMSEP value (mg/L) of 0.72 (N-PLS/RBL); 0.70 (GA-N-PLS/RBL) and 0.64 (iSPA N-PLS/RBL) were obtained. When combined with the U-PLS/RBL, the new algorithm was evaluated in the EEM modeling in the presence of inner filter effect. Simulated data and quantitation of phenylephrine in the presence of acetaminophen in water sample and interferences (ibuprofen and acetylsalicylic acid) were used as a case of studies. The results were compared to the U-PLS/RBL and e twell established method PARAFAC. For simulated data was observed the following RMSEP values (in arbitrary units) 1.584; 0.077 and 0.066 for PARAFAC; U-PLS/RBL and the proposed method, respectively. In the quantitation of phenylephrine the found RMSEP (in μg/L) were of 0.164 (PARAFAC); 0.089 (U-PLS/RBL) and 0.069 (ISPA-U-PLS/RBL). In all cases it was shown that variables selection is a useful tool capable of improving accuracy when compared with the respective global models (model without variables selection) leading to more parsimonious models. It was observed in all cases, that the sensitivity loss promoted by variables selection is compensated by using more selective channels, justifying the obtained RMSEP smaller values. Finally, it was also observed that the models based on variables selection such as the proposed method were free from significant bias at 95% confidence.
Neste trabalho foi desenvolvida uma nova estratégia para seleção de intervalos empregando o algoritmo das projeções sucessivas (SPA) acoplado a modelos N-PLS e U-PLS, ambos com etapa pós-calibração de bilinearização residual (RBL). O novo algoritmo acoplado a modelos N-PLS/RBL, foi avaliado em dois estudos de casos. O primeiro envolvendo dados simulados para quantificação de dois analitos (A e B) na presença de um único interferente. No segundo foi conduzida a quantificação de ofloxacina em água na presença de interferentes (ciprofloxacina e danofloxacina) por meio da modelagem de dados cromatografia liquida com detecção por arranjo de diodos (LC-DAD). Os resultados obtidos foram comparados ao modelo N-PLS/RBL e a seleção de variáveis com o algoritmo genético (GA-N-PLS/RBL). No primeiro estudo de caso (dados simulados) foram observados valores de RMSEP (x 10-3 em unidades arbitrárias) para os analitos A e B da ordem de 6,7 e 47,6; 10,6 e 11,4; 6,0 e 14,0 para o N-PLS/RBL, GA-N-PLS/RBL e o método proposto, respectivamente. No segundo estudo de caso (dados HPLC-DAD) valores de RMSEP (em mg/L) de 0,72 (N-PLS/RBL); 0,70 (GA-N-PLS/RBL) e 0,64 (iSPA-N-PLS/RBL) foram obtidos. Quando combinado com o U-PLS/RBL o novo algoritmo foi avaliado na modelagem de EEM em presença efeito de filtro interno. Dados simulados e a quantificação de fenilefrina na presença de paracetamol em amostras de água e interferentes (Ibuprofeno e ácido acetil salicílico) foram usados como estudos de caso. Os resultados obtidos foram comparados ao modelo U-PLS/RBL e ao bem estabelecido método PARAFAC. Para dados simulados foram observado os seguintes valores de RMSEP (em unidades arbitrarias) 1,584; 0,077 e 0,066 para o PARAFAC; U-PLS/RBL e método proposto, respectivamente. Na quantificação de fenilefrina os RMSEP (em μg/L) encontrados foram de 0,164 (PARAFAC); 0,089 (U-PLS/RBL) e 0,069 (iSPA-U-PLS/RBL). Em todos os casos foi demostrado que seleção de variáveis é uma ferramenta útil capaz de melhorar a acurácia quando comparados aos respectivos modelos globais (modelo sem seleção de variáveis) e tornar os modelos mais parcimoniosos. Foi observado ainda para todos os casos, que a perda de sensibilidade promovida pela seleção de variáveis é compensada pelo uso de canais mais seletivos, justificando os menores valores de RMSEP obtidos. E por fim, foi também observado que os modelos baseados em seleção de variáveis como o método proposto foram isentos de bias significativos a 95% de confiança.
Wanklyn, Kevin Michael. "Experiments involving second order effects in high-intensity, high-frequency acoustic fields". Diss., Kansas State University, 2008. http://hdl.handle.net/2097/12200.
Texto completoDepartment of Mechanical and Nuclear Engineering
Sameer I. Madanshetty
Cavitation is a long studied phenomenon, fascinating and varied. Observed cavitation thresholds vary, typically ranging from the vapor pressure of the liquid to several atmospheres. Recent studies in cavitation involving very clean liquids give rise to thresholds that surpass 100 atmospheres. Calibrating such high intensity, high frequency, focused acoustic fields presents a significant challenge. The present investigation describes how it is possible to exploit the second order acoustic effect of radiation pressure to seek reliable calibration of the high intensity acoustic fields. Experiments describe how to account for the attendant second order effect of acoustic streaming in the evaluation of the radiation force to accomplish meaningful calibration. Beyond the measurement of the second order quantities associated with cavitation, the work also presents a first investigation of a direct estimation of implosion energies of collapsing bubbles near well-characterized surfaces.
Ksianzou, Viachaslau. "Second-order nonlinear optical interactions and cascading effects in thinorganic films". Phd thesis, Universität Potsdam, 2010. http://opus.kobv.de/ubp/volltexte/2010/4918/.
Texto completoDie vorliegende Arbeit beschreibt neue Konzepte für schnelle photonische Schaltelemente. Diese Elemente basieren auf optischer Wellenleitung im sichtbaren und nahen infraroten Spektralbereich. Die Arbeit ist auf organische Wellenleiter aus transparenten, farbstoffdotierten Polymeren fokussiert, welche Chromophore mit besonders großen optischen Nichtlinearitäten zweiter Ordnung enthalten. Insbesondere wird dargestellt, wie nichtlineare optische Prozesse in derartigen Bauelementen genutzt werden können, wenn man elektrische oder optische Steuersignale einsetzt. Es wird der gesamte Her-stellungszyklus verschiedener integrierter photonischer Bauelemente betrachtet. Die Arbeit umfasst weiterhin eine detaillierte theoretische Analyse der Wellenausbreitung in Medien mit großer nichtlinearer optischer Suszeptibilität zweiter Ordnung bei hoher Lichtintensität. Unter Annahme optischer Materialkonstanten, welche den experimentell ermittelten Werten entsprechen, erfolgte eine quantitative Abschätzung für das Auftreten von Szenarien, bei denen messbare Abwei-chungen der Strahlausbreitung vom linearen Regime auftreten, z:B. das Auftreten von zeitlichen, räumlichen und spektralen Satteliten zu den im Material propagierenden Laserpulsen. Es gelang, we-sentliche Aspekte der Strahlpropagationsprozesse durch Anwendung von Jacobi-Integralfunktionen in geschlossener mathematischer Form darzustellen. Darüber hinausgehende theoretische Untersuchungen nutzten die Finite-Elemente-Methode, um die Verteilung des elektromagnetischen Feldes im Inneren optischer Wellenleiter für verschiedene Pro-pagationsmoden zu analysieren. Ein weiterer Teil der Arbeit beschäftigt sich mit organischen Kompositmaterialen, welche große opti-sche Nichtlinearitäten aufweisen. Mittels quantenchemischer Verfahren erfolgte eine detaillierte Un-tersuchung der Zusammenhänge zwischen der molekularen Struktur und den linearen sowie den nichtlinearen optischen Eigenschaften der untersuchten Farbstoffmoleküle und Polymere. In Bezug auf die Probenpräparation sind unterschiedliche Verfahren zur Schichtbildung und zur molekularen Orientierung miteinander verglichen und bewertet worden, da letztere eine Voraussetzung für das Auftreten nichtlinearer optischer Prozesse zweiter Ordnung bildet. Die Untersuchungen erstreckten sich auf Vakuumaufdampfschichten aus niedermolekularen Chromophoren und auf Polymerschich-ten, welche durch Vakuumabscheidung sowie durch Spincoating oder andere Flüssigphasenabschei-dungsverfahren hergestellt worden sind. Auf orientierenden Substraten (z.B. geriebene Schichten aus Polytetrafluoräthylen) konnte eine spontane Orientierung der deponierten Chromophore nachgewie-sen werden. Die Chromophore in Polymerschichten wurden durch Coronapolung orientiert. In der Arbeit ist zum ersten Mal vorgeschlagen worden, eine räumliche Modulation der nichtlinearen optischen Eigenschaften durch gezielte lokale Coronapolung oder andere Orientierungstechniken derart zu generieren, dass die Abfolge gepolter Domänen dem Bildungsgesetz einer modifizierten Fibonacci-Reihe mit gebrochen rationalen Zahlen gehorcht. Der Vorteil von optischen Wellenleitern mit dieser Struktur darin, dass diese mehrere unterschiedli-che nichtlineare optische Prozesse gleichzeitig unterstützen und somit eine Vielzahl neuartiger Phä-nomene auftreten kann, welche man in neuartigen photonischen Bauelementen, z.B. für die optische Informations- und Kommunikationstechnik nutzen kann. Der letzte Teil der Arbeit beschreibt den Aufbau verschiedener integrierter optischer Modulatoren und Schalter, die sich mit Hilfe das neu entwickelten Verfahrens herstellen lassen. Zukünftige Entwicklungen in der Photonik, insbesondere der optischen Informations- und Kommuni-kationstechnik werden im abschließenden Teil der Arbeit diskutiert.
Yildirim, Ufuk. "Assessment Of Second-order Analysis Methods Presented In Design Codes". Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610498/index.pdf.
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effects. In addition, the approximate methods defined in AISC 2005 (B1 &ndash
B2 Method), and TS648 (1980) will be discussed in detail. Then, example problems will be solved for the demonstration of theoretical formulations for members with and without end translation cases. Also, the results obtained from the structural analysis software, SAP2000, will be compared with the results acquired from the exact and the approximate methods. Finally, conclusions related to the study will be stated.
Tikka, Timo K. "Examination of second-order effects in structural concrete columns and braced frames". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ62673.pdf.
Texto completoKurtz, Michael J. "Of Course a Handgun Can Take Down A Helicopter: Cultivation Effects of Military-Style Video Games". Cleveland State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=csu1336590515.
Texto completoSorensen, Taylor J. "Reducing Thermal Bridging and Understanding Second-Order Effects in Concrete Sandwich Wall Panels". DigitalCommons@USU, 2019. https://digitalcommons.usu.edu/etd/7642.
Texto completoTaylor, Mark Hedin. "The effects of industry specialization on auditors' inherent risk assessments and second-order uncertainty". Diss., The University of Arizona, 1994. http://hdl.handle.net/10150/186854.
Texto completoDu, Chenguang. "How Well Can Two-Wave Models Recover the Three-Wave Second Order Latent Model Parameters?" Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/103856.
Texto completoDoctor of Philosophy
To collect and analyze the longitudinal data is a very important approach to understand the phenomenon of development in the real world. Ideally, researchers who are interested in using a longitudinal framework would prefer collecting data at more than two points in time because it can provide a deeper understanding of the developmental processes. However, in real scenarios, data may only be collected at two-time points. With only two-wave data, the second-order latent growth model (SOLGM) could not be used. The current dissertation compared the performance of two-wave models (longitudinal common factor model and latent change score model) with the three-wave SOLGM in order to better understand how the estimation quality of two-wave models could be comparable to the tree-wave model. The results show that on average, the estimation from two-wave models is identical to the ones from the three-wave model. So in real data analysis with only one sample, the point estimate by two-wave models should be very closed to that of the three-wave model. But this estimation may not be as accurate as it is obtained by the three-wave model when the latent variable has large variability in the first or last time point. This latent variable is more likely to exist as a statelike construct in the real world. Therefore, the current study could provide a reference framework for substantial researchers who could only have access to two-wave data but are still interested in estimating the growth effect that supposed to obtain by three-wave SOLGM.
Bullock, Christopher. "Second-order schedules of token reinforcement combined effects of token-production and exchange-schedule manipulations /". [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0000654.
Texto completoPetkoglou, Alexandros. "Stability of building structures using NLFEA including second order effects : Applications with the software ATENA-GiD". Thesis, KTH, Betongbyggnad, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302435.
Texto completoWang, Xiaorui. "Decomposing the Growth of US Wine Exports to China into Scale, Competitive, and Second-order Effects". OpenSIUC, 2014. https://opensiuc.lib.siu.edu/theses/1598.
Texto completoBAREIRO, WALTER GABRIEL. "STUDY AND MODELING OF TRUSSES STRUCTURES USED IN INDUSTRIAL BUILDINGS CONSIDERING INITIAL IMPERFECTIONS AND SECOND ORDER EFFECTS". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2015. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=26671@1.
Texto completoCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE EXCELENCIA ACADEMICA
Os galpões industriais constituem um dos segmentos da construção em aço mais comuns no mercado brasileiro. As características na construção são rapidez de execução, menor volume de material e a esbeltez dos elementos. Nesta dissertação avalia-se o desempenho e a necessidade da consideração das imperfeições iniciais e dos efeitos de segunda ordem nas estruturas treliçadas usuais nos galpões. Através da modelagem de um conjunto de pórticos treliçados realiza-se um estudo paramétrico das diferentes tipologias e busca-se oferecer uma solução prática de pré-dimensionamento. Realiza-se a comparação entre as metodologias de análises de segunda ordem: o método simplificado MAES da ABNT NBR 8800:2008 e a análise avançada efetuada no programa Autodesk Robot Structural Analysis Professional. Os resultados obtidos mostraram a consistência entre as metodologias de análises de segunda ordem. A partir estudo comparativo entre a análise de primeira ordem e a análise de segunda ordem conclui-se sobre a pequena influência dos efeitos de segunda ordem neste tipo de sistemas treliçados. Comprova-se a pouca sensibilidade à incorporação das imperfeições geométricas iniciais. Obtêm-se os gráficos de consumo aproximado de aço e de deslocamentos máximos. Para as diferentes soluções estruturais observa-se a incidência das tipologias das treliças no desempenho estrutural em relação aos deslocamentos máximos. Apresenta-se um procedimento simplificado de pré-dimensionamento mediante tabelas e ábacos produzidos para as diversas treliças.
The industrials buildings are one of the segments of construction in most common steel in Brazil. The features in construction are rapidity of execution, a smaller volume of material and slenderness of de elements. In this dissertation evaluates the performance and the need consideration of initial imperfections and second order effects in the usual trusses structures in the sheds. Through modeling a set of trusses frames is carried out a parametric study of various types and seeks to provide a practical solution of pre-design. It carried out a comparison between the methodologies of second-order analysis: The simplified method MAES of the ABNT NBR 8800:2008 and the advanced analysis made in Autodesk Robot Structural Analysis Professional program. The result showed consistency between the methodologies of and order analysis. From a comparative study of the analysis of 1st order and 2nd order analysis is concluded on the small influence of 2nd order effects in this type of trusses systems. Proves to little sensitivity to the incorporation of initial geometric imperfections. They obtain the graphs of estimated consumption of steel and maximum displacements. For different structural solutions observes the incidence of types of trusses in the structural performance of maximum displacement. It presents a simplified procedure for preliminary design through tables and abacuses produced for different trusses.
Fritsch, Gerd. "An analytical and numerical study of the second-order effects of unsteadiness on the performance of turbomachines". Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/42703.
Texto completoAlamry, Ali. "Grammatical Gender Processing in Standard Arabic as a First and a Second Language". Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39965.
Texto completoStreet, Michael William. "Quantum well intermixing for the control of second order non-linear effects in GaAs/AlGaAs asymmetric quantum well waveguides". Thesis, University of Glasgow, 1997. http://theses.gla.ac.uk/4326/.
Texto completoNguyen, Thuy Thi My. "Development of a second-order inelastic analysis method accounted for construction stage effects on the behaviour of prestressed steel structures". Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/117967/8/Thi_Nguyen_Thesis.pdf.
Texto completoCarmo, Regina Maria dos Santos. "Efeitos de segunda ordem em edifícios usuais de concreto armado". Universidade de São Paulo, 1995. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-24042018-120327/.
Texto completoIn this work, a servicebility pararneter (displacement-height ratio - a/H) is studied, as well as the global stability parameters of building structures (α and γz stability coefficients). By analyzing thirty (30) actual reinforced concrete building structures, a relationship among these parameters (α, γz and a/H) is achieved aiming to demonstrate to the building structure designers their level of efficiency and reliability for practical purposes. Some standard procedures for global second order structure analysis are also discussed with comparison among them. In this analysis, the material and the geometric non-linearities have to be considered and for that one can adopt approximated and accureted methods. Mainly, the interest is to verify the possibility of using the simplified method as a proper tool to compute the final second order efforts of buildings, once this procedure could be included into the Brazilian Code, NB-1, which is being revised.
Quillin, Michael J. "Are We Going In There? The Role of Brief Narratives (TV ADs and PSAs) in Narrative Transportation and Second-Order Cultivation Effects". Cleveland State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=csu1418637369.
Texto completoLong, Kelsey B., Kelsey C. Rookstool, Lauren P. Driggers-Jones y Wallace Jr Dixon. "Effects of Birth Order on Temperament and Language". Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/asrf/2018/schedule/210.
Texto completoNingre, Corado. "Modélisation du comportement élastoplastique cyclique multiaxial par une approche multisurface dans l'espace des déformations". Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALI053.
Texto completoThis work deals with the theoretical, numerical and experimental study of the elastoplastic mechanical behavior of metallic materials in complex multiaxial cyclic loadings. The elastoplastic behavior is described by a multisurface model, within the finite strain theory. This model is written in the five-dimensional Ilyushin strain space. The resulting model is capable of describing the multiaxial behavior of metallic materials, in complex cyclic loadings, in particular non-proportional, taking into account finite strain, time-independent irreversibility, cumulative second order effects (Poynting-Swift effect) and cyclic hardening. The model has been implemented in a commercial finite element calculation code, in order to produce an operational tool for calculating structures such as mechanical equipment and internal components of hydroelectric power plants (turbines, alternators, etc.). The proposed model was validated by comparison with combined tensile-torsion biaxial test results obtained on stainless steel. This model has been completed by an energy and thermodynamic analysis that allows the implementation of a relevant energy approach for the monitoring of fatigue damage. As part of this work, this approach was illustrated by the proposal of a fatigue criterion, validated by the comparison of its predictions with those of other classical fatigue criteria proposed in the literature
Mercier, Charlotte. "Développement d’un modèle de stabilité des barres à section tubulaire comprimées fléchies sensibles aux effets du second ordre". Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0113/document.
Texto completoThis thesis is part of an effort to improve knowledge of the instabilities of beam-columns sensitive to second-order effects. The works deal with the means to take into account the initial imperfections in the structural analysis and to adapt the current verification criteria for tubular section structures, such as scaffold structures. The existing formulations, proposed in the literature and calculation codes, are often based on hypotheses, and thus lead to inconsistencies between, on the one hand, the verification criteria in section, and on the other hand, the verification criteria in instability. The developed approach takes into account the interaction between section resistance and instability phenomena, and includes the influence of initial imperfections (initial defect of aplomb, lack of straightness, residual stresses). As far as possible, these effects will be decoupled. As such, a method has been developed to allow the definition of initial imperfections of a structure, to be as accurate as possible. This method, based on the definition of a single imperfection, identical in appearance to the shape of the predominant critical buckling mode, is a precise, fully defined method to take into account the geometric characteristics, intrinsic mechanical characteristics, limits and the form of loading, in the definition of the initial imperfections of a structure. A test campaign was carried out in collaboration with the French Syndicate of Scaffolding, Formwork and Shoring (SFECE), aiming to analyze the experimental behavior of buckling of cold-formed tubular sections. Nine buckling tests on scaffold ladders, from various European suppliers, have been carried out. A statistical study of the experimental results has made it possible to highlight that the imperfection factor currently defined for the cold-formed tubular sections is far too penalizing for the sections used in the field of scaffolds. In order to respond to the problem, new instability criteria have also been established using a similar approach to that of Ayrton-Perry. These new criteria make it possible to free ourselves from the modeling of initial imperfections while offering a safe and accurate estimate of the stress factor of a structure. A comparative study was conducted in order to ensure the safety of the proposed formulations as regards the section verification criteria of the NF EN 1993-1-1 current standard
Nassiri, Esmail. "Modelling nonlinear behaviour of two-dimensional steel structures subjected to cyclic loading". Thesis, Queensland University of Technology, 1998.
Buscar texto completoBörjesson, Rivera Miriam. "Practice makes perfect? : Sustainable practices with ICT and daily travel". Licentiate thesis, KTH, Miljöstrategisk analys (fms), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-175753.
Texto completoDenna avhandling visar hur praktikteori (practice theory) kan tillämpas på olika sätt när man ska utforska hur det dagliga livet kan bli mer miljömässigt hållbart. Ytterst syftar avhandlingen till att bidra till ny kunskap om hur man kan utforma strategier och åtgärder som syftar till att stödja miljömässigt hållbara praktiker. Denna avhandling hävdar att praktikteori är användbart inom hållbarhetsforskning eftersom den utgår från de vardagliga praktikerna. Detta ger ett perspektiv på människors vardagsliv som lyfter fokus upp från individens beteende och istället undersöker hur praktiker skapas och omskapas genom de element (material, färdigheter och symbolisk innebörd) som utgör en social praktik. Avhandlingen behandlar följande frågor: i) Hur kan IKT: s roll i det dagliga livet begreppsliggöras?, ii) Hur kan praktikteori användas för att beskriva och andra ordningens miljöeffekter i miljöbedömningar? och iii) Vilka är de viktigaste överväganden utifrån ett praktikteoriperspektiv vid utformningen av sociala och/eller fysiska åtgärder för hållbar mobilitet? Artiklarna i denna avhandling utgår från praktikteori, men det teoretiska ramverket används på ett konceptuellt, metodologiskt eller analytiskt vis i de olika artiklarna. De viktigaste slutsatserna i avhandlingen är: Förändringar i till följd av IKT-användning kommer oundvikligen ha miljöpåverkan som kan vara både negativ och positiv. För beslutsfattare är det viktigt att ta hänsyn till detta när man planerar för framtiden och aktivt stödja och underlätta för hållbara sociala praktiker. Miljöbedömningar behöver kunna hantera och inkludera så kallade effekter av andra ordningen för att kunna bedöma potentiell miljöpåverkan som en ny produkt, program eller en tjänst kan ha. Ett sätt att inkludera andra ordningens effekter i miljöbedömningar kan vara att titta på förändringar i vardagliga praktiker som uppstår vid användning av IKT. Interventioner och andra typer av åtgärder har potential att förändra befintliga mobilitetspraktiker. Men dessa potentiella förändringar, beror på en rad olika faktorer som är mer eller mindre svårt att påverka för den enskilde utövaren så som arbetsplatsens lokalisering, scheman, tillgång till transportmedel och transportsätt. Vidare är det svårt att förutse exakt hur sådana förändringar kommer att se ut och om de håller i sig i det långa loppet. Slutligen är det inte nödvändigtvis så att en intervention eller annan åtgärd kommer att ha det önskade resultatet som avsågs, utan resultatet kan snarare vara något annat. Detta innebär att insatser och åtgärder måste analyseras och bedömas ur andra perspektiv, till exempel ett praktikteoretiskt perspektiv.
QC 20151023
Lima, Juliana Soares. "Verificações da punção e da estabilidade global em edifícios de concreto: desenvolvimento e aplicação de recomendações normativas". Universidade de São Paulo, 2001. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-12082016-121356/.
Texto completoThis work presents an overview of the requirements for punching shear and global stability of buildings in the draft Brazilian Code for concrete structures. Suggestions are made for fulfilling some omissions of the Code, based on theoretical studies and physical phenomena analysis. Some complements and changes are also proposed to facilitate the understanding of the new recommendations and to improve their results. Simplified methods related to the eccentric punching and modifications in the use of γz as a first order effects magnifier are suggested. It is concluded that the new provisions are more detailed and efficient, presenting significant improvements on both topics, especially when compared to NBR 6118 (1978). Nevertheless, it is considered important the introduction of some complements, as those suggested in this work.
Muduli, Pranaba Kishor. "Ferromagnetic thin films of Fe and Fe 3 Si on low-symmetric GaAs(113)A substrates". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2006. http://dx.doi.org/10.18452/15473.
Texto completoIn this work, the molecular-beam epitaxial growth and properties of ferromagnets, namely Fe and Fe_3Si are studied on low-symmetric GaAs(113)A substrates. Three important aspects are investigated: (i) growth and structural characterization, (ii) magnetic properties, and (iii) magnetotransport properties of Fe and Fe_3Si films on GaAs(113)A substrates. The growth of Fe and Fe_3Si films is optimized at growth temperatures of 0 and 250 degree Celsius, respectively, where the layers exhibit high crystal quality and a smooth interface/surface similar to the [001]-oriented films. The stability of Fe_(3+x)Si_(1-x) phase over a range of composition around the Fe_3Si stoichiometry is also demonstrated. The evolution of the in-plane magnetic anisotropy with film thickness exhibits two regions: a uniaxial magnetic anisotropy (UMA) for Fe film thicknesses = 70 MLs. The existence of an out-of-plane perpendicular magnetic anisotropy is also detected in ultrathin Fe films. The interfacial contribution of both the uniaxial and the perpendicular anisotropy constants, derived from the thickness-dependent study, are found to be independent of the [113] orientation and are hence an inherent property of the Fe/GaAs interface. The origin of the UMA is attributed to anisotropic bonding between Fe and As or Ga at the interface, similarly to Fe/GaAs(001). The magnetic anisotropy in Fe_3Si on GaAs(113)A exhibits a complex dependence on the growth conditions and composition. Magnetotransport measurements of both Fe(113) and Fe_3Si(113) films shows the striking appearance of an antisymmetric component (ASC) in the planar Hall effect (PHE). A phenomenological model based on the symmetry of the crystal provides a good explanation to both the ASC in the PHE as well as the symmetric anisotropic magnetoresistance. The model shows that the observed ASC component can be ascribed to a second-order Hall effect.
Hadi, Muhammad Usman. "Digital predistortion for compensation of nonlinearities in Radio over Fiber Links". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.
Buscar texto completoMoncayo, Winston Junior Zumaeta. "Análise de segunda ordem global em edifícios com estrutura de concreto armado". Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-19042011-085946/.
Texto completoThe overall second-order analysis of buildings is essential nowadays, in which the structures are each time more slender. In the market, there are several computer systems that perform this analysis, and some new structural engineers can not know the concepts on which it rests. Therefore, this study aims: to evaluate the second-order effects in buildings making use of the coefficients \'gama\'z and FAVt, this developed by TQS, and using P-Delta process; to show how this P-Delta process works and how the computer system CAD/TQS considers it; and also analyze the second order efforts obtained from the first-order ones multiplied by O,95 \'gama\'z. Regarding the evaluation of overall stability, will be compared the results obtained with the parameters \'alfa\', \'gama\'z, FAVt, and RM2M1, the latter generated from the P-Delta process. It is intended, therefore, to provide subsidies for new engineers to be able to work with well-founded conceptual base, both in the choice of method and analysis of results.
Malakoski, Joice. "Pilares esbeltos de concreto armado com seção variável". Universidade de São Paulo, 1998. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-22022018-152222/.
Texto completoThe recommendations of Brazilian Code NBR-6118/1978 and Comité Euro-Internacional du Béton Model Code CEB-1990 are described, for stability verification of concrete slender columns with variable cross sections, subjected to axial load and bending moment, using the exact method. To obtain the second order bending moments, the Engesser-Vianello method and the numeric integration of the cross section curvatures along the longitudinal axial of column method are described. To obtain of bending moment supported by the cross sections due to curvature resultant of the column flexure under axialload, expressions for rectangular and circular (full and hollow) cross sections are developed, using stress-strain relations for materials proposed by model codes above mentioned. It\'s also presented a software written in PASCAL language for microcomputer and destined to column stability verification, with option to adopt the NBR-6118/1978 or CEB-1990 model code recommendations. Effects due to vibrations were nor included. Methods to take in account creep effects were described.
Antoniades, Savopoulos Anastasia. "Exploring the experiences of mothers after participating in a mother-child interaction intervention, within an HIV context". Diss., Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-07082009-084041.
Texto completoPrawatmuang, Woramon. "Effects of positive evidence, indirect negative evidence and form-function transparency on second language acquisition : evidence from L2 Chinese and L2 Thai". Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/270338.
Texto completoPham, Duc Toan. "Analyse par le calcul à la rupture de la stabilité au feu des panneaux en béton armé de grandes dimensions". Thesis, Paris Est, 2014. http://www.theses.fr/2014PEST1073/document.
Texto completoIn this contribution, an original and comprehensive method aimed at designing vertical concrete walls submitted to fire loadings, is proposed and developed, with a special emphasis on high rise panels used in industrial buildings. Indeed, when subjected to high thermal gradients, such slender structures exhibit quite significant out-of-plane movements, resulting in an eccentricity of the gravity loads and thus to bending moments in addition to the pre-existing compressive forces. It is such a change of geometry, which is all the more pronounced as the panel is tall, combined with a temperature-induced degradation of the constituent materials strength properties, which may explain why an overall collapse of the structure may occur, well prior to buckling instability. The proposed approach is fundamentally based on the theory of yield design. This theory is first applied to the determination of an interaction diagram, characterizing the fire resistance of a reinforced concrete panel cross-section. It is then implemented as a design method for analysing the stability of the panel in its previously calculated deformed configuration. The whole procedure is explained in full details in the simplified situation when the high rise panel can be modeled as a one-dimensional beam, leading to the exact determination of a dimensionless factor characterizing the stability of the panel. The method is then extended to deal with a more realistic, but somewhat more complex, configuration of a rectangular panel. Some preliminary results, which need to be further validated in a subsequent work, are finally produced. As a necessary complement to the mostly theoretical and computational approach presented in this work, a series of four-point bending tests has been performed on reduced scale slabs placed in a furnace. The results of these tests partially validate the predicted interaction diagram of a fire loaded panel section
Pinto, Rivelli da Silva. "Não-linearidade física e geométrica no projeto de edifícios usuais de concreto armado". Universidade de São Paulo, 1997. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-25052018-173137/.
Texto completoThis work shows some simplified procedures to consider physical non-linearity (FNL) and geometrical non-linearity (GNL), for reinforced concrete buildings, and discusses its reliability. For FNL, prescriptions for stiffness reduction of structural elements are compared with the results obtained from finite elements analysis, in order to verify its assessment. For GNL, a detailed study of the accuracy of γz parameter to evaluate final second order effects is made. The behavior of the parameter along the height of the building and for each effort considered is shown.
Ozgur, Cagri. "Behavior and Analysis of a Horizontally Curved and Skewed I-girder Bridge". Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14637.
Texto completoCamargo, Rafael Eclache Moreira de. "Contribuição ao estudo da estabilidade de edifícios de andares múltiplos em aço". Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-23102012-095939/.
Texto completoThis work presents a comparative analysis of different structural systems for a 20-storey building. Each model has been designed using the principles of the direct analysis method (DAM), present in the ABNT NBR 8800:2008. The first-order amplification method (FOAM) was used to obtain, in a simplified manner, the forces acting on the building elements, including local and global second-order effects. The incidence of the wind was simulated in two different ways. In the first case, named uniform, the wind was applied without eccentricity, generating only structure overturning. In the second case, it was considered an eccentricity due to vicinity effects, prescribed by the ABNT NBR 6123:1988, responsible for causing twisting and building overturning. All numerical analysis were carried out a simplified second-order method known as P-Delta. From the results obtained it was found that the reduction of live loads in the design of columns provides material economy, but on the other hand, increases analysis time, since it requires different combinations for beams and columns. The strategy used to simulate the vicinity effects was satisfactory, because it allowed, in an easy and practical way, the consideration of the torsion produced by the wind eccentric impact. It was also observed that these effects increased the bending moments and the displacements of the structures. About the second-order effects, it was shown that, for sway or non-sway classification, the critical combination is one with greatest gravitational loading. However, for the design of the elements, it was observed that other loading conditions can be critical, especially those in which the wind is the main live load. Finally, the results obtained by the P-Delta method were very similar to those calculated by the first-order amplification method. The FOAM was, in turn, very laborious, because it requires the modeling of different types of structures for the determination of the forces.
Descamps, Théo. "Numerical analysis and development of accurate models in a CFD solver dedicated to naval applications with waves". Thesis, Ecole centrale de Nantes, 2022. http://www.theses.fr/2022ECDN0049.
Texto completoThe objective of the present thesis is to develop solvers and methodologies in order to improve the computational cost andthe accuracy with regard to the thematics of seakeeping and added resistance. First, a synthetic workflow of the algorithmof the in-house solver foamStar is proposed. From this analysis a modification is proposed in order to use the Multidimensional Universal Limiter for Explicit Solution (MULES) with a second-order backward time scheme. Then, successive studies are done in order to: verify the implementation of the backward scheme; define an efficient numerical set-up and adequate mesh structures for numerical wave simulations. The case studies are, Taylor-Green vortices, nonlinear regular wave propagating in a periodic domain, and finally, regular waves generated with relaxation zones considering numerical configurations close to what is used for naval applications. In the last part of this Thesis, a preliminary study is done simulating a containership with forward speed in head regular waves. The recommendations derived all along this thesis are also evaluated
Ayad, Mohammad. "Homogenization-based, higher-gradient dynamical response of micro-structured media". Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0062.
Texto completoA discrete dynamic approach (DDM) is developed in the context of beam mechanics to calculate the dispersion characteristics of periodic structures. Subsequently, based on this dynamical beam formulation, we calculate the dispersion characteristics of one-dimensional and two-dimensional periodic media. A sufficiently high order development of the forces and moments of the structural elements is necessary to accurately describe the propagation modes of higher order. These results show that the calculations of the dispersion characteristics of structural systems can be approached with good accuracy by the dynamics of the discrete elements. Besides, non-classical behaviors can be captured not only by higher order expansion but also by higher gradient formulations. To that scope, we develop a higher gradient dynamic homogenization method with micro-inertia effects. Using this formulation, we compute the macroscopic constitutive parameters up to the second gradient, using two distinct approaches, namely Hamilton’s principle and a total internal energy formulation. We analyze the sensitivity of the second gradient constitutive terms on the inner material and geometric parameters for the case of composite materials made of a periodic, layered microstructure. Moreover, we show that the formulations based on the total internal energy taking into account higher order gradient terms give the best description of wave propagation through the composite. We analyze the higher order and micro-inertia contributions on the mechanical behavior of composite structures by calculating the effective static and dynamic properties of composite beams using a higher order dynamic homogenization method. We compute the effective longitudinal static response with higher order gradient, by quantifying the relative difference compared to the classical formulation of Cauchy type, which is based on the first gradient of displacement. We then analyze the propagation properties of longitudinal waves in terms of the natural frequency of composite structural elements, taking into account the contribution of micro-inertia. The internal length plays a crucial role in the contributions of micro-inertia, which is particularly significant for low internal length values, therefore for a wide range of materials used in structural engineering. The developed method shows an important size effect for the higher gradients, and to remove these effects correction terms have been incorporated which are related to the quadratic moment of inertia. We analyze in this context the influence of the correction terms on the static and dynamic behavior of composites with a central inclusion
Lin, Yu-Ren y 林育仁. "Analysis Frame of Second Order Effect by SCEM". Thesis, 2010. http://ndltd.ncl.edu.tw/handle/75412669032615157772.
Texto completoShie, Shu-Hao y 謝樹豪. "The Analysis of Dispersion Effect for First-order and Second-order Optical Element in White Light LEDs". Thesis, 2014. http://ndltd.ncl.edu.tw/handle/d3386t.
Texto completo逢甲大學
光電學系
103
In this study, we discusse the dispsersion effect in White light LEDs (WL-LED) according to Snell’s law, obtaining the relationship between the shape of packaging lens and it by analyzing the light pattern. Besides, to understand the influence to the first-order dispersion by second-order optics, we also add a reflecting optics to our experiment and simulation. Furthemore, we fabricate lens and use equivalent light emitting surface that avoid other factors such as reflector cup、phosphor coating which might affect the dispersion effect, and we also can infer the position of each wavelengths that emiitinng out from the optical system by our formula, then explain the result we had. Hence, according to our results, Round typ LED has the largest angular difference for ∆θ_br=0.76° under the normalize intensity at 0.1 a.u, and Lambertian type LED has the smallest valuse for ∆θ_br=0.14°, moreover, with increasing the size of packaging lens, the values of angular difference will also be reduced. Eventually, taking Round type LED as example, we find the angular difference will be dramatically reduced from 0.76° to 0.035° at normalized intensity at 0.1 a.u when reflecting optics is applied.
Chiu, W.-J. y 邱文榮. "Parasitic Effect of the Current-Mode Second-Order OTA-C Low Pass Filter Structure". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/90126113367102609867.
Texto completo中原大學
電機工程研究所
96
It is worthy of research to do the analogue circuit using Operational Transconductance Ampplifiers (OTAs) and Capacitors (Cs), because an OTA with the property of an active element can replace a resistor such that no resistors will be needed in the integrated circuit. In addition, the equivalent resistor value can be electronically tuned by varying the bias current. Recently, owing to the appearance of “Analytical Synthesis Method”, the circuit with third-order OTA-C elliptic filters has achieved the three following important advantages: (i) using single-ended-input OTAs (overcoming the feed-through effect due to the use of differential-input OTAs), (ii) using grouded capacitors (absorbing the shunt parasitic capacitance), and (iii) using the minimum components and all the parasitic capacitances have the same places as those of all the given capacitors in the realized circuits. The output signals will be distorted in the high frequency as a result of the varieties of parasitic capacitances and the non-ideal effect. Therefore, taking the non-ideal effect of OTAs into consideration, we analyze the ratio of the output current to the input voltage of OTAs, which is called frequency dependent transconduce, for the purpose of increasing the switching frequency in the filter structure. The experimental results also show that the non-ideal effect indeed influences the output signal. Based on the non-ideal effect upon the output signal and the improvement on the frequency dependent transconduce, we propose a method that adopts tunable OTA to improve the non-ideal effect of OTA to solve the problems resulted from the non-ideal effect and parasitic effect. Accordingly, the signal can be output more precisely. Finally, the H-spice simulation with Tsmc35.l process verifies the theoretical predictions.
TSOU, CHING-HUEI y 鄒慶暉. "Second-Order Analysis of Planar Steel Frames Considering the Effect of Spread of Plasticity". Thesis, 1997. http://ndltd.ncl.edu.tw/handle/31531045545480266838.
Texto completoChang, Wei-Chun y 張惟淳. "Non-ideal Effect and Improvement of TheVoltage-Mode Second-Order High-fequency OTA-C Filter Structure". Thesis, 2005. http://ndltd.ncl.edu.tw/handle/35761895246144589741.
Texto completo中原大學
電機工程研究所
93
There are several kinds of parasitic capacitances, including input and output parasitic capacitances of an OTA and the nodal parasitic capacitance at the internal node in an OTA-C (Operational Transconductance Amplifier and Capacitor) circuit. This leads to the difficulty to have the same places for both given capacitors and all the parasitic capacitances. When the differential-input OTA and floating capacitances are employed in the circuit structure, and the impossibility to obtain a high–frequency circuit with precise output responses by giving a proper capacitor value after absorbing the parasitic capacitance. Recently, the “Analytical Synthesis Method” has been proposed to realize the high-order OTA-C circuits which achieving the following three important criteria simultaneously for the design of OTA-C filters: (i) using single-ended-input OTAs (overcoming the feedthrough effect due to the use of differential-input OTAs), (ii) using grounded capacitors (absorbing the shunt parasitic capacitance), and (iii) using the least number of component counts (reducing the total parasitic effects). Note that all the parasitic capacitances have the same places as those of all the given capacitors in the realized circuits achieving the above three important criteria. An improvement approach is then proposed by the absorption of parasitic capacitances from the given capacitors to obtain a precise high-frequency circuit. The non-ideal effect in an OTA is resulted from the parasitic capacitances spreaded among the MOS transistors which is called the frequency dependent transconduce, namely, the ratio between the output current phasor and the input voltage phasor, of an OTA. The non-ideal effect out of the OTA includes the input and output parasitic capacitance and the output parasitic conductance of an OTA and the nodal parasitic capacitance at each internal node. In this thesis, a voltage-mode second-order OTA-C universal filter structure is used for example to demonstrate this new improvement for a high-frequency circuit. When the simulation resonance frequency is higher than the theoretical value, this implies that the given transconductance is also higher than the exact value. The reduction of the given transconductance leads to approach the theoretical prediction. On the contrary, if the simulation resonance frequency is lower than the theoretical value, it means that the additional parasitic capacitance makes a total capacitance larger than the exact value. The absorption of parasitic capacitance from the given capacitor leads to close the ideal requirement. After several reductions of transconductances or absorptions of capacitances can enter the very precise range with the error lower than 1% for the simulation resonance frequency. Furthermore, as the operational frequency increases, the numbers of pole and zero of the frequency dependent transconductance of an OTA three-OTA circuit increases, too Based upon different simulation results, different frequency dependent transconductance are given to consist with the practical variation. Finally, The above proposed improvement was verified by UMC05 H-spice simulation with supply voltages ±2.5V.