Dissertations / Theses on the topic 'Estimability analysis of parameters'
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Bouchkira, Ilias. "Modélisation thermodynamique des solutions d'acides sulfurique et phosphorique en présence du minerai de phosphate : applications à l'encrassement, à la cristallisation et à l'optimisation multicritère d'une unité industrielle de production d'acide phosphorique." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0056.
This PhD work deals with the development of a thermodynamic model and its use in the modeling, simulation and optimization of phosphoric acid manufacturing processes. It consists of mass and charge balance equations, chemical equilibrium equations, and Pitzer’s model equation. The model involves several unknown parameters to be identified from experimental measurements available in a database developed in this work. It contains data on speciation of phosphoric and sulfuric acids, on solubility of ten minerals, and on water activity of eight binary systems. The measurements are performed under temperature conditions ranging from 298K to 353K and concentrations ranging from 0 mol/kg water to 20 mol/kg water. A global sensitivity based estimability analysis is then developed and used to evaluate the estimability of the unknown parameters from the available data. The estimable parameters are then identified, and the values of the non-estimable ones are taken from the literature or from previous studies. Additional experimental measurements, different from those used for the identification of parameters, are carried out to validate the model. The Fisher-Snedecor statistical test and the Kolmogorov-Smirnov test are particularly used. The results of the tests confirmed the quality of the model predictions. The validated model is first exploited in the multi-objective optimization of an industrial unit of phosphoric acid production, in particular to minimize the chemical losses of phosphate and to improve of the performance of the unit. It is then used to investigate the fouling problems that occur during the production of phosphoric acid and alter the performance of different units of the manufacturing process. Finally, the model is exploited in the modeling and simulation of the crystallization of calcium sulfates during the production of phosphoric acid. The model thus validated and already exploited can now be used as a predictive tool for the design and optimal operation of existing phosphoric acid manufacturing processes, or even for the development of new processes which are more integrated and more efficient
Markgren, Hanna. "Fatigue analysis - system parameters optimization." Thesis, Umeå universitet, Institutionen för fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-151755.
Kirkwood, Jobie Samuel. "Analysis of protein crystallisation parameters." Thesis, University of York, 2015. http://etheses.whiterose.ac.uk/9656/.
Oosthuizen, Lizle Joann. "Impact of obesity on semen analysis parameters." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/19888.
This study aims to address the lack of data on the link between BMI and infertility in the South African population by describing the prevalence of male overweight and obesity in a group of men undergoing infertility investigation, as well as assessing any semen analysis abnormalities in these groups. It also aims to describe how well men can predict their BMI category and determine whether weight loss would be an acceptable part of infertility management in overweight or obese male partners. Beliefs surrounding healthy weight and fertility will also be addressed.
Hin, Lin Yee. "Analysis and Modelling of Implied Market Parameters." Thesis, Curtin University, 2015. http://hdl.handle.net/20.500.11937/208.
Bennia, Abdelhak. "Mimo systems parameters identification." Thesis, Virginia Tech, 1986. http://hdl.handle.net/10919/41579.
In this thesis, a presentation of a new canonical representation of multi-input multioutput systems is given. The new characterization covers the full range of practical situations in linear systems according to the structural properties and model of the perturbations which are known. Its direct link to ARMA processes as well as to classical state space representation ls also given.
The importance of the new representation lies in the fact that all unknown parameters and state variables appear linearly multlplied by either external variables (inputs and outputs) that appear in the data record, or by matrices that are only composed of ieroes and ones. This property enables us to perform a joint state and parameters estimation. Moreover, if the noises are gaussian and their statistics are known, an on-line algorithm that involves a standard dlscrete-time time-varying Kalman filter is proposed and used successfully in the estimation of unknown parameters for simulated examples.
Master of Science
Shao, Rui. "Effect of experimental parameters on simultaneous thermal analysis." Auburn, Ala., 2007. http://repo.lib.auburn.edu/2007%20Spring%20Theses/SHAO_RUI_44.pdf.
Nik, Idris Nik Ruzni. "Estimating meta analysis parameters in non-standard data." Thesis, University of Strathclyde, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.432097.
Marrero, Robert L. Jr. "Analysis of Variable Insensitive Friction Stir Welding Parameters." ScholarWorks@UNO, 2017. http://scholarworks.uno.edu/td/2385.
Jacobs, Patricia A., Donald Paul Gaver, and Arthur Fries. "Prediction of changeover performance operational test (OT) parameters from developmental test (DT) parameters via meta-analysis." Monterey, California. Naval Postgraduate School, 1997. http://hdl.handle.net/10945/24476.
Al-Jowder, Anwar. "Analysis of digital communication signals and extraction of parameters." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://handle.dtic.mil/100.2/ADA294482.
"December 1994." Thesis advisor(s): Ralph Hippenstiel, D.v.Z. Wadsworth. Includes bibliographical references. Also available online.
Adetula, Bolade Adewale. "Global sensitivity analysis of reactor parameters / Bolade Adewale Adetula." Thesis, North-West University, 2011. http://hdl.handle.net/10394/5561.
Thesis (M.Sc. Engineering Sciences (Nuclear Engineering))--North-West University, Potchefstroom Campus, 2011.
Pixner, Konrad. "Analysis of parameters to challenge fundamental principles in viticulture." Master's thesis, ISA, 2011. http://hdl.handle.net/10400.5/8595.
Three different pruning methods were used as a model system to challenge fundamental principles in viticulture. Different viticultural and physiological parameters of field grown Chardonnay, Sauvignon blanc, Chenin blanc and Syrah have been quantified, analysed and compared; main focus was on the comparison of ratios between and amongst vegetative and reproductive parameters. Changes in grapevine morphology due to the pruning system as already described in literature could be proofed; number of buds left at winter-pruning is “correlated” with the number of shoots, leaves and bunches formed during the next year. Shoot length, internode length, leaf size and bunch mass are correlated inversely to the number of remaining winter buds. Source:sink relationship has been affected by pruning method due to changes in size and priority of the source and sink organs, which also affected carbon allocation as well as plant biomass development. Impacts on the rachis development have been found, impacting on the % share of berries on a bunch and the ratio rachis length to rachis mass. Alternative pruned vines seemed to have more sanitary problems and appeared not to be adapted for high quality grape production. Almost no parameter or ratio was stable when changing pruning system; indicating the difficulty of imposing absolute numbers and use them as a recipe for decision making in viticulture
Fang, Yuguang. "Stability analysis of linear control systems with uncertain parameters." Case Western Reserve University School of Graduate Studies / OhioLINK, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=case1057598985.
Liu, Hui. "Performance analysis of DOA estimation algorithms using physical parameters." PDXScholar, 1992. https://pdxscholar.library.pdx.edu/open_access_etds/4362.
Zamperin, Filippo <1994>. "Testing standard technical analysis parameters' efficiency, a metaheuristic approach." Master's Degree Thesis, Università Ca' Foscari Venezia, 2020. http://hdl.handle.net/10579/17564.
Akhter, A. S. "Estimating the parameters of the truncated normal distribution." Thesis, University of Essex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378366.
Biswas, Sanjeet Kumar. "Analysis and comparison of network performance with different network parameters." FIU Digital Commons, 1999. http://digitalcommons.fiu.edu/etd/1703.
McKinnon, Mika. "Landslide runout: statistical analysis of physical characteristics and model parameters." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/25835.
Mohamad, Hamzah Firdaus. "Statistical analysis of freshwater parameters monitored at different temporal resolutions." Thesis, University of Glasgow, 2012. http://theses.gla.ac.uk/3350/.
Hebb, Richard Ian. "Thermoelastic stress analysis of crack tip parameters using genetic algorithms." Thesis, University of Southampton, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.560794.
VIEIRA, ROBSON DOMINGOS. "MIMO MEASURED CHANNELS: CAPACITY RESULTS AND ANALYSIS OF CHANNEL PARAMETERS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2005. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=7954@1.
Sistemas com múltiplas antenas transmissoras e receptoras, também conhecidos como sistemas MIMO (Multiple Input-Multiple Output), têm sido apontados como uma solução para aumentar a capacidade de enlaces sem fio, permitindo aos usuários utilizar aplicações com altas taxas de dados. Isto é extremamente importante em sistemas onde a capacidade obtida com as técnicas tradicionais é bastante limitada devido às características do ambiente de propagação. Com o sistema MIMO, algumas destas características são exploradas para criar canais paralelos e obter aumento expressivo de capacidade. A análise da capacidade de sistemas MIMO se baseia em uma modelagem desenvolvida a partir do comportamento estatístico dos pares de enlaces existentes entre as múltiplas antenas transmissoras e receptoras. Existe, portanto, um grande interesse em medir este comportamento para situações típicas bem como em relacioná-lo a determinados parâmetros do sistema. Nesta tese apresentam-se os resultados de uma campanha de medidas visando caracterizar canais MIMO de faixa estreita e faixa larga em ambientes fechados (indoor) com uma freqüência de portadora de 2GHz. A partir dos dados medidos, avalia-se a capacidade e diversos parâmetros do canal espaço-temporal. Os parâmetros do canal MIMO são estimados através do algoritmo FD-SAGE e as dispersões temporal e espacial do canal são calculadas a partir dos parâmetros estimados. Uma análise dos autovalores da matriz do canal MIMO é realizada com o objetivo de relacionar os valores da capacidade ao número de canais paralelos. É analisada, ainda, a correlação entre a capacidade e os parâmetros físicos do canal, tais como espaçamento entre os elementos do arranjo, espalhamento angular, espalhamento dos retardos, número e potência dos multipercursos.
Multiple antenna systems known as MIMO (Multiple Input Multiple Output) systems have been proposed as an effective way to address the user demand for high data rate applications in wireless systems. This is especially important in systems where the capacity attained with traditional techniques is very limited due to the adverse characteristics of the propagation environment. With MIMO, some of these characteristics are used to create parallel channels producing significant increase in capacity. The analysis of MIMO capacity is based on models developed from the statistical behavior of the multiple links between the transmitting and receiving antennas, and therefore there has been large interest in measuring these characteristics in typical scenarios and in relating the data to system parameters. In this thesis the results of a MIMO wideband measurement campaign carried out in an indoor scenario with a carrier frequency of 2 GHz is presented. The wideband and narrowband channel capacity and several channel parameters are evaluated from the measured data. The channel parameters are estimated using the frequency domain Space-Alternating Generalized Expectation maximization (FD- SAGE) algorithm. Temporal and spatial dispersions of the multipath channel are calculated from the estimated parameters and an eigenvalue analysis is performed seeking to relate the capacity values to the number of parallel channels. In addition, the correlation between channel capacity and physical parameters as antenna spacing, angle spread, delay spread, number and power of multipath components is investigated.
Kim, Jun-Young Sun. "Computational Analysis of the Rb-E2F Pathway: Classification of Parameters." Thesis, The University of Arizona, 2015. http://hdl.handle.net/10150/595064.
Müller, Tobias, Alexander Lenske, Marek Hauptmann, and Jens-Peter Majschak. "Analysis of Dominant Process Parameters in Deep-Drawing of Paperboard." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-230928.
Mohammed, Usman Ali. "Analysis of Parameters Affecting Modal Frequencies in Bolted Joint Connections." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535709260529555.
Müller, Tobias, Alexander Lenske, Marek Hauptmann, and Jens-Peter Majschak. "Analysis of Dominant Process Parameters in Deep-Drawing of Paperboard." NC State University, 2017. https://tud.qucosa.de/id/qucosa%3A30665.
Riede, Moritz. "Identification and Analysis of Key Parameters in Organic Solar Cells." [S.l. : s.n.], 2006. http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-22610.
Salhi, Sana. "Structural modelling of tall buildings using generalized parameters." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66269.
Pekpinarli, Hakan. "Discharge Estimations With Regression Analysis Using Basin Parameters And Gis Techniques." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606035/index.pdf.
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k Menderes. The data used are Digital Elevation Model (DEM), monthly average discharges observed at stream gauging stations and monthly total precipitation data from the precipitation observation stations in the study area. Stream networks are delineated from DEM using a GIS software. The basin parameters obtained from DEM are drainage area, total river length, main channel slope, main channel length and mean basin slope. Precipitation amount is also included in the analyses as the sixth parameter to improve the results. Using these parameters annual and monthly average discharge equations are determined and the best equation for each month is found based on the adjusted coefficient of determination values and stepwise regression analysis. Three models, each representing a different basin and a general model that represents the whole study area are developed. The verification of the models is made using the discharges at the additionally chosen stations that are not included in the model development. An interface that acquires the drainage area for a certain cross section and estimates the discharge according to the desired regression equation is written using arc objects and visual basic programming language. At the end, regression analysis results of the models are assessed and interpreted.
Thompson, Duncan. "Modeling of Molecular Weight Distributions in Ziegler-Natta Catalyzed Ethylene Copolymerizations." Thesis, 2009. http://hdl.handle.net/1974/1896.
Thesis (Ph.D, Chemical Engineering) -- Queen's University, 2009-05-28 20:43:58.37
Fang, Peng-Shiang, and 方鵬翔. "Product Feasibility Analysis with Electrical Parameters." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/75000532809686952268.
中華大學
電機工程學系
86
A product feasibility of electrical specification is not only dependent on ciruit structure, it also has closely relation with environment factors and of process parameters. In this thesis, experiments on a simple circuit are used to explored the problems on electrical specifications of integrated circuit products. We have peformed Monte Carol analysis with environment changes as well as process variations to simulate a batch of products. According to the experiment results, we have summarized some rules to provide a guide for circuit designers, process engineers, testing engieers and product engineesrs when they are designing, manufacturing, testing and developing a new product.
Wang, Ren-Hong, and 王仁宏. "Analysis Parameters for Pap Smear Cell." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/83431855506484553056.
中原大學
醫學工程研究所
94
Cervical cancer is a disease of highly incidence and death rate in Taiwan, and the largest age group for the women must take precautions. At present, Pap smear screening is the most effective way to prevent cervical cancer. This study detects abnormal cells according to features of stained cells and parameters of each nucleus. Features of stained cells obtained via RGB proportions of the Nucleus and Cytoplasm of cells in each lesion. In parameters for each nucleus, we use image quantification and region growing to chose Nucleus contour, herewith we obtain color, area, and textures. Then, ROC analysis ( Receiver Operating Characteristic Analysis ) was used to obtain parameters threshold in order to choose cell type. In this study, we analyze color and nucleus parameters for cells chosen from 40 Pap smear images, then automatically detect and class cells of each lesion, at last accomplish an automatic process for Pap smear. Preliminary result shows the G/B ratio of nucleus color is smaller than 1, and abnormal cell has the higher blue percentage value. In discriminating result, it is obvious to differentiate between normal and abnormal nucleus according to their RGB and area parameters. However stain or bloods on the Pap smear were easily considered abnormal nucleus, so using other stain characteristics of cell to reduce error. In test for 10 normal and 30 abnormal images, the accuracy, sensitivity and specificity were 0.975,1, and 0.9, respectively. It indicated our study's process has a good identification in distinguishing normal and abnormal pap smears. In discriminating cell's lesion degree, HSIL syncytium detection can stand on nucleus's aggregate number, and we use texture parameters to choose HSIL and LSIL while nucleus has the similar color and area. Quarter of LSIL images were considered HSIL accordingly. In test for 10 LSIL and 20 HSIL images, the accuracy, sensitivity and specificity were 0.933,1, and 0.8, respectively. It indicated our study's process has a good identification in high grade lesion pap smears. In conclusion, this system can provide an automatic process serves and identify abnormal nucleus efficiently. Moreover, both positions and parameters of nucleus can provide users compare resources and compile data through the interface of system. Image quantification and region growing which can reduce process cost were used in this study, we expect this can process large image more efficiently.
Chou, Ying-Pin, and 周穎濱. "Thermokinetic Parameters Analysis for Cumene Hydroperoxide." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/zn5qym.
國立雲林科技大學
環境與安全工程系碩士班
96
Cumene hydroperoxide (CHP) and its derivatives have caused many serious explosions and fires in Taiwan. It is dangerously incurred by thermal instability, chemical contaminates, and even mechanical shock. It has been employed in polymerization for producing phenol and dicumyl peroxide (DCPO). Differential scanning calorimetry (DSC) was used to analyze the thermal hazard of CHP with sodium hydroxide (NaOH), sulfuric acid (H2SO4), and sodium bisulfite (Na2SO3). Thermokinetic parameters, such as exothermic onset temperature (T0), maximum temperature (Tmax), and enthalpy (ΔH), were obtained from thermal curve. Isothermal microcalorimetry (thermal activity monitor, TAM) was employed to investigate the thermal hazards while CHP in storage and CHP mixed with NaOH, H2SO4, and Na2SO3 under isothermal conditions in reactor or container. Tests by TAM indicated that in the temperature range from 70 to 90°C an autocatalytic reaction was demonstrated in thermal curves. According to the results from TAM test, high performance liquid chromatography (HPLC) was, in turn, adopted to analyze the result of concentration versus time. By Arreheniu’s equation, the activation energy (Ea) and rate constant (k) were calculated. Depending on the process conditions, NaOH was one of the incompatible chemicals or catalysts for CHP. When CHP is mixed with NaOH, the T0 is to reduce earlier and the reactions become more complex than the pure one, and the Ea is lower than pure CHP.
Chou, Shih-Ping, and 周詩頻. "Optimum Parameters Analysis Of Wind-Proof Exhauster." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/24174585804536245003.
國立中興大學
機械工程學系
86
AbstractThe purpose of this thesis is to investigate the optimum parameters ofwind-proof exhauster. The experimental fuels of the water heater areas Propane and Butane. The studying parameters include size of outlet,height of baffle plate and angle of oblique plate. The excess air ratio, CO ratio and combustion efficiency are measured to determine thewin-proof performance. The win-proof exhauster of the present researchis a type of well win-proof performance and simple type. The Chinese National Standard 3661, 3662, 13602, 13603, and 10671 are selected asthe guidelines in present experimental study. The results shows thatsize of outlet must be more than 100mm to satisfy the CNS requirementfor CO ratio. And there is the largest out flow occur at the distanceof 37.14mm between the outlet and the baffle plate when the obliqueplate angle degree is 30. Therefor to consult the fine combustionefficiency and to satisfy the CNS requirement for CO ratio, we advicethe angle degree of the oblique plate is 45.Key words:wind-proof exhauster, height of baffle plate, angle ofoblique plate.
Huang, Shyi shiun, and 黃錫勳. "AAutomatic Hepatocellular Image Analysis for Morphological Parameters." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/04234373593244319483.
國立成功大學
醫學工程學系
86
Liver cancer is one of the ten major causes of death for male and female in Taiwan area. Therefore, early detection of hepatocellular carcinoma is very important for early treatment. In clinics, the routine confirmation of hepatoma is always based upon the biopsy analysis. It is heavily dependent on physician*s experience and training. Hence, the purpose of this study is to develop an objective and quantitative liver tissue analysis system. In this study, edge based and threshold based methods are both employed to segment the nuclei for the live tissue image. The morphologicalfeatures are then extracted using Hough transform. With theseparameters, the multilayer perceptron is then applied to find the contours of nuclei. The accuracy for nucleus extraction is about 91.00﹪. Finally, the morphological parameters of nuclei needed in the biopsy analysis, such as the averaged diameter and their variations, may be evaluated automatically.
Chen, Chun-hui, and 陳純慧. "Shark management based on vital parameters analysis." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/95653174062964403657.
國立臺灣海洋大學
海洋資源管理研究所
95
Sharks own various life history characteristics. Therefore, a shark management based on vital parameters is more reasonable and realistic. In this study, the life history traits of 63 populations from 39 species were collected from literatures. The life history parameters included the ratio between size at birth and asymptotic length (Lb/L∞), the ratio between size at maturity and asymptotic length (Lm/L∞), maximum age (Tmax), age at maturity (Tm), growth rate (k) and the ratio between fecundity and reproduction cycle (f/Rc) were anlyzed with principal components analyses (PCA) and calculated factor coordinates. After that, our research divided 63 shark populations into 4 groups based on the results of cluster analysis. The relationships between population increase rates and life history parameters were described by multiple regression equations. The results showed the first group has slow growth rate (0.034 yr-1
Lo, Men-Tzung, and 羅孟宗. "Statistical Analysis of Doppler Parameters Using Microbubbles." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/48962027881095908098.
國立臺灣大學
電信工程學研究所
92
The ultrasound system for drug delivery should provide the function to recognize the coming medicine carrier and destroy it to release the interior drug. Note that the contrast agent (i.e. microbubble) is adopted as the medicine carrier. Therefore, the goal of this study is to formulate two theorems about bubble detection and cavitation detection for drug delivery. The Doppler domain analysis for echoes backscattered from microbubbles is necessary, since in Doppler domain we only need to separate the microbubbles from the red cells rather than other tissues. In addition, the first step in the procedure for analyzing the Doppler data is to build the statistical model (such as autocorrelation function) of echoes, since the backscattering signals form the distributed microbubbles and red cells are random process. Under band limited transmission, it can be observed that beyond a critical frequency, the theoretical volume backscattering cross-section (power gain) derived from the ensemble average power spectrum of microbubbles decreases with frequency. On the contrary, the volume backscattering cross-section of red cells increases with frequency. The decreasing gain with frequency for distributed microbubbles is proved theoretically to result in the downward shift in estimated Doppler parameters after microbubble injection. If we increase the transmitted bandwidth, the variation in estimated Doppler parameters after microbubble injection will become more apparent, this benefits for bubble reorganization. The variations in Doppler parameters estimated with experimental data are presented to verify the theoretical deviations. Under the narrow band insonification for bubble cavitation, the appearance of the apparent subharmonics is proposed to the indication of cavitation in this study, since the onset threshold of the subharmonics is very high. If the onset threshold of the subharmonics is so high that it is close to the cavitation threshold, the observation time for the subharmonics will be very short; this is proved theoretically to result in the weak correlation of consecutive Doppler signals in this study. Therefore, the estimated Doppler signals for the subharmonics can be used to specify whether the appearance of subharmonics can be used to indicate the cavitation. Our numerical results demonstrated that the onset thresholds are indeed very close to the cavitation thresholds for most bubbles. Our experimental results carried out using the suspension of levoist® and free gas show that the correlation of two consecutive Doppler signals obtained form the apparent subharmonics is very weak. The experimental results also present that the weak correlation of Doppler signals should be accused of the excessively reduced observation time rather than the flow velocity spread.
Ou, Yih-Chang, and 歐益昌. "Effects of Implicit Parameters in Linkage Analysis." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/04284431853260284258.
國立臺灣大學
農藝學研究所
89
In human genetic analysis, data are collected through the so-called ‘ascertainment procedure’. Statistically this sampling scheme can be thought of as a multistage sampling method. At the first stage, one or several probands are ascertained. At the subsequent stages, a sequential sampling scheme is applied. Sampling in such a way is virtually a nonrandom procedure, which, in most cases, causes biased estimation which may be intractable. Three types of parameters, i.e., target, design and nuisance parameters, are defined as the essences to formulate the true, conditional and incomplete conditional likelihoods. These parameters are also classified into explicit or implicit parameters depending on whether they can be expressed explicitly in the likelihood function. These parameters are used to discuss about the intractability problem in this study. The intractability problem is attributed to loss of information of any implicit parameter in likelihood formulation and differ with the definitions of the likelihoods. Specifically, in this dissertation, the effect of implicit parameters on the estimation of recombination fraction in linkage analysis is discussed.
Chang, Wei-Chieh, and 張圍捷. "Study of Quadrotor UAVs Performance Parameters Analysis." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/40101389127334274274.
淡江大學
航空太空工程學系碩士班
103
The progress of embedded controller performance and drop of sensors cost, encourage the development of quadrotor UAVs. But, no publication on the research of performance parameters of quadrotors is found. In the thesis, the performance parameters are studied. The momentum method is used to study the aerodynamic performance of rotors. Based on the results, the quadrotor performance parameters studied are thrust required, power required, climb rate, decent rate, range and endurance. The research assures the design of quadrotor UAV which satisfies requirements.
Yang, Chia-Ming, and 楊家鳴. "Design of Analysis System for Arteriosclerosis Parameters." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/17689893827963872518.
南台科技大學
資訊工程系
96
Cardiovascular diseases are always listed in ten major causes of death according to the statistical data of the Department of Health in recent years. There is a tendency towards increase each year. The pathological changes of Arteries are the major causes of the cardiovascular diseases. However, cardiovascular diseases are also listed in ten major causes of death according to the statistical data of the Department of Health about middle-aged people, which there is a tendency towards increase each year. Not only have the aged people suffered from cardiovascular diseases, but also middle-aged people should prevent the symptoms. The interface of the designed system includes the storage interface of physiological signal and the analysis interface of physiological signal. The storage interface of physiological signal can display and record the physiological signal that there are ECG, PCG and 4-channel PPG. Heart rate (HR) and pulse wave velocity (PWV) can be real-time calculated. The analysis interface of physiological signal can choose bilateral analysis, left-sided analysis or right-sided analysis in the optional mode. There are four advanced analysis mode can be setup. HR, PWV, Stiffness Index and Reflection Index can be analyzed by using the designed computer functions. The system can be used to evaluate the sclerosis characteristic of full-body arteries with a long-term record.
Wang, Shin-Yu, and 汪昰佑. "Steering system geometry design and parameters analysis." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/52874346394958251279.
國立屏東科技大學
車輛工程系所
101
The purpose of this study is to propose a procedure for designing the steering system of LEV. First, we collect the designs parameters from the same level vehicle, and plan out the design process and application, then determine the best hard point design position of steering system by using Ackermann steering theory, Dixon theory, and Kennedy’s theorem. After that the model of suspension including the steering system have been created by using ADAMS/CAR, and the motion of parallel wheel travel and steering then be executed for explore its motion movement parameter variations. The computer simulation can be used to modify points for finding the ideal steering system geometry .By modified the hard points including knuckle, knuckle arm contacts point, the tie rod inner and tie rod outer, steering box position, etc., in the steering motion parameters can meet the expected range of motion parameters and effectively applied to suspension geometry institutions calibration and correction.
Ouarouer, Yosra. "Determination of kinetic parameters using Rancimat analysis." Master's thesis, 2017. http://hdl.handle.net/10198/19765.
Neste estudo foram avaliados os parâmetros de qualidade físico-químicos, os teores de fenóis totais e as estabilidades oxidativas na gama de 120 a 160 º C, de azeites comerciais virgem extra, permitindo confirmar a classificação de vrigem extra, bem como agrupá-los de acordo com teores totais de fenóis em baixo teor (88 ± 7 mg CAE/kg), médio teor (112 ± 6 mg CAE/kg) e elevado teor (144 ± 4 mg CAE/kg) de fenóis. Os resultados demonstraram que os azeites com maior teor de fenóis totais foram mais estáveis termicamente. Parâmetros cinéticos e termodinâmicos foram determinados com base na teoria do complexo/estado de transição ativado, mostrando que seus valores não diferiram significativamente para os azeites com maiores teores de fenóis totais. Azeites com um alto teor de fenóis totais possuiam um coeficiente de temperatura significativamente mais negativo, maior fator de aceleração de temperatura, maior energia de ativação e fator de freqüência, maior entalpia positiva de ativação, menor entropia negativa de ativação e maior energia livre de Gibbs. Os resultados confirmaram que a oxidação lipídica é um processo não-espontâneo, endotérmico e endérgico em que os complexos formados são estruturalmente mais ordenados do que os reagentes que lhes deram origem. Um desvio negativo ao comportamento de Arrhenius foi observado para todos os azeites estudados sendo o comportamento supra-Arrhenius mais notório para azeites com menor teor de fenóis totais.
Jhou, Hong-you, and 周鴻佑. "Comparative analysis of foot arch index parameters." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/24156221409222608673.
國立中央大學
生物醫學工程研究所
99
Human foot''s structure is important regarding stands and walks. Abnormal foot state could make the lower limb easily weary and even lead to the pathological changes, resulting in unbalanced when walking. There are two common diseases: the flat foot and the high arch foot caused by abnormal arch height. Therefore, the arch height assessment of foot is essential in foot medical examination. There are many ways to detect arch height, including: x-ray examination, arch height measurement, footprint index parameters and foot pressure index (exp. Modified Arch Index; MAI) etc. In this study, we choose arch measurements, footprint index parameters (including AA, ALI, FI, TFI, SI, CSI and AI) and MAI with image processing and automated measurement system for detection as they are easy to access and the equipments are relatively cheap. 33 participants with a complete footprint and without any foot pathological history were assumed to be normal and recruited in this study to give a total of 66 samples of footprints (22 male, 11 female, average height in 169±6.7cm, weight in 64±12.3 kg, age in 23±3 years). This is the normal control group. In addition, 10 participants with flat foot (8 male, 2 female; a total of 20 samples of footprints) and 10 participants with high arch foot (4 men, 6 women, a total of 20 samples of footprints) were recruited as the contrast group. The arch height, seven footprint index parameters and MAI were measured and compared between groups and with data from literatures for cross validation in order to identify the best detection method. The empirical results of the foot arch height detection experiments show that the average foot arch heights are 4.03±0.82, 2.45±0.14 and 5.47±0.26 cm for normal, flat foot and high arch foot, respectively. The parameters that can best represent the arch height (highest correlation) is MAI. The situation of MAI of normal foot which is 26%~30% on the middle foot, the distribution is uniform. The flat foot which is 33%~37% on the middle foot, the main distribution is on the middle foot. The high arch foot which is 18%~22% on the middle foot, the main distribution is on the front foot and the heel. Among seven footprint index parameters, the Arch Index (AI) is most correlated with arch height and Arch Length Index (ALI) is lowest. Furthermore, the two-dimensional area ratio parameters (FI and TFI) are more related with arch height than one-dimensional length ratio parameters (SI and CSI). In conclusion, we have indentified the best examine method: MAI among methods tested for abnormal arch height detection. As the method is capable of detecting abnormal foot arch and can provide useful and reliable information, we believe that it could predict the arch height before clinical x-ray foot arch examination.
LAI, KUAN-TING, and 賴冠廷. "Analysis of Mold Displacement by Process Parameters." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/60046351747216152790.
逢甲大學
機械與電腦輔助工程學系
105
Produce a set of molds need to about 30 days, but life cycle of the product becomes shorter and shorter, the manufacturing schedule was also shortened. This research expect to use numerical simulation program to find the mold production situation when the mold design was completed, it can save the try and error. This research used thermo-solid coupling because the heat effect is large. Form the analysis results, clamping force has a large effect on the plate, and the effect on the core is injection pressure and temperature. We add the gasket to improve the slide displacement, and we find add 10μm of gasket can improve about 0.1μm. We also found change the material parameters is a large impact on the analysis. It can be observed that some parts have stress concentration problems, it may cause the product failure because the part and part can not contact tight. If the problem can be found when we design the mold, it can save the time to fix.
Cheng, Yen-Chun, and 程彥鈞. "Thermokinetic Parameters Analysis for Tert-Butyl Peroxybenzoate." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/51967943672693991226.
雲林科技大學
環境與安全工程系碩士班
97
Effects of time, temperature, and heat of decomposition (ΔHd) of tert–butyl peroxybenzoate (TBPB) and TBPB mixed with benzoyl peroxide (BPO) on the thermal analysis by using chamber furnace, thermal activity monitor III (TAM III), and differential scanning calorimetry (DSC) were investigated. Typically different ratios of TBPB mixed with BPO are employed to cure an unsaturated polyester resin. Both TBPB and BPO had high ΔHd more than 1,000 J g–1. Afterwards, TBPB mixed with BPO could have higher ΔHd. The higher ΔHd in the decomposition reaction, the greater the degree of thermal hazard. Therefore, this study assessed the thermokinetic parameters of TBPB and TBPB mixed with BPO, such as activation energy (Ea=106.9–144.4kJ mol–1), frequency factor (A=6.054×1014 min–1), exothermic onset temperature (T0=73.25–99.51oC), etc., with other safety parameters for TBPB and TBPB mixed with BPO.
Tseng, Hsiao-Sheng, and 曾孝生. "Phases Analysis of 200m Sprinting Speed Parameters." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/99071584875769142856.
國立體育大學
教練研究所
100
The purpose of this study was to analyze the combination and changes among stride length, stride frequency, averaged speed of per 20 meters running in 200m sprint, and then to investigate the sprint athletes’ speed performance of the whole trip. We further understand the relations among the explosive, legs length, and grades of the athletes by analyzing the relations among stride length, stride frequency, and averaged speed. 14 male sprint athletes were recruited in this study as subjects and their averaged age, grade, height, weight, and legs length are 17.36±1.84 years old, 24.79±.89 seconds, 174.64±5.28 centimeters, 64.93±5.18 kilograms, and 94.43±3.85 centimeters. We applied Ariel Performance Analysis System to capture the image data for this study and proceeded to analyze the data we got with SPSS 12.0 for Windows suited package software. The collected data were analyzed by descriptive statistics and we used Pearson product moment correlation to test the relation among stride length, stride frequency, averaged speed, and the relation among explosive, legs length, and grade of every 20 meters. The level of significance was α=.05. Results: 1. The longest stride length, 2.27meters per stride, occurred during 60m-80m part and the fast stride frequency, 4.23 seconds per stride, occurred during 20m-40m part. The distribution of speed was a single peak pattern and the maximal speed, 9.14 meters per second, occurred during 60m-80m part. 2. Stride lengths and stride frequencies in whole 200m sprint are negatively related which showed stride length and stride frequency interact. When the length enlarges, the frequency will decrease and when the frequency increases, the length will decrease. 3. Stride frequency and speed are positively related which indicated the vital relation between speed and frequency of stride. The action of frequency is more important than length, so the stride frequency is one key factor which affects the speed. 4. Explosive and grade performance of the subjects are negatively related which shows the worse of the athlete’s grade is, the worse explosive of the athletes will be. In addition, explosive and speed are positively related, which shows the better the explosive is, the performance of speed will be better as well. 5. Height and legs length of the subjects are positively related which shows the higher who is, the longer length of legs who will have. Furthermore, the relation among height, legs length, and stride length are positive which indicates the vital relation between height, leg lengths, and stride length. Both are important factors which affect the action of stride length.
Chen, Guan-Hao, and 陳冠豪. "Analysis of FMD 3D Print Quality Parameters." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/9m77zs.
國立勤益科技大學
機械工程系
105
Nowdays the 3D printing is a developed technology on usage.Many manufacturers are using 3D printing to fribricate parts directly in order to save the cost of mold.Therefore, the 3D printing make trend on large numbers of customization. The 3D printing makes processing a multi-functional composite.The Fused Deposition Modeling (FDM) and other processing equipment has become one of the mainstream market products. The 3D printing of FDM device type in addition to the difference between equipment and structure, the manufacturing principle is the same, but the same machine has a print quality is not the same, print can not attain the conditions. For the end of users, operators still need to use trial and error method that making their product to fulfill their design. It can’t truly reach the way of fast prototyping, even do the shorten development time. In this experiment, the use of several key parameters that affect print quality, such as, the extrusion temperature, print speed and cooling, design models to simulate the problems encountered in the printing process, and provide reference for the finished product parameters. And then, shorten of the FDM development time and achieve the purpose, in accordance with the requirements encountered in the print request to modify the parameters.
CHANG, CHUN-CHIEH, and 張俊傑. "Synthesis Parameters and Characteristic Analysis of Tetracene." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/bbnsx2.
國防大學理工學院
化學工程碩士班
106
Tetracene has good impact sensitivity, safe and highly reliable primer sensitizer, which is one of the commonly used components of the impact primer powder. It is mixed with lead styphnate, antimony(III) sulfide, barium nitrate and other substances to become the basic formula for impact primers. In this study, Taguchi experimental design method was used to explore the most suitable parameters for the formation of tetracene. Six experimental conditions were designed by five control factors and four levels of L16(45) orthogonal table. The experimental data were converted to S/N (Signal-to-Noise ratio) value, the experimental parameters of the maximum yield of tetracene were obtained through the analysis and evaluation. The verification results showed that the best synthesis conditions were obtained, and the maximum tetracene yield was 83.7%. In addition, the use of differential scanning calorimetry (DSC), X-ray diffraction analysis (XRD), optical microscope, laser diffraction particle size analyzer and drop hammer impact tester and other instruments analyze the characteristics to establish the relationship between the particle size and shape of tetracene and its thermal characteristics and sensitivity.
Kim, Dongsoo. "Estimation of analysis parameters in optimum interpolation and variational objective analysis." 1988. http://catalog.hathitrust.org/api/volumes/oclc/19059241.html.
Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 153-158).
Lo, Chi Ching, and 盧志清. "Uncertainly Analysis of Reinforced Concrete Buildings Model Parameters." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/78986054025791117091.