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Dissertations / Theses on the topic 'Total correction'

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1

Young, James Roger. "Modelling elastic dynamics and fracture with coupled mixed correction Eulerian Total Lagrangian SPH." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31290.

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In this thesis, the Smoothed Particle Hydrodynamics (SPH) method is applied to elastic dynamics and fracture. More specifically, two coupling methods are presented which make use of both the Eulerian and Total Lagrangian formulations. These coupling methods are intended for problems whereby SPH particles, which constitute the domain, are required to convert from a Total Lagrangian kernel to an Eulerian kernel once a damage criterion is activated. The conservation equations are derived for the Eulerian and Total Lagrangian formulations, in a consistent manner which naturally presents the condit
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2

Flower, Emily Elizabeth, and not supplied. "Comparison of Two Planning Methods for Heterogeneity Correction in Planning Total Body Irradiation." RMIT University. Applied Sciences, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070511.163728.

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Total body irradiation (TBI) is often used as part of the conditioning process prior to bone marrow transplants for diseases such as leukemia. By delivering radiation to the entire body, together with chemotherapy, tumour cells are killed and the patient is also immunosupressed. This reduces the risk of disease relapse and increases the chances of a successful implant respectively. TBI requires a large flat field of radiation to cover the entire body with a uniform dose. However, dose uniformity is a major challenge in TBI. (AAPM Report 17) The ICRU report 50 recommends that the dose range w
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3

Huxtable, Barton Duane Simon Barry. "Absence of a Scott correction for the total binding energy of noninteracting fermions in a smooth potential well /." Diss., Pasadena, Calif. : California Institute of Technology, 1988. http://resolver.caltech.edu/CaltechETD:etd-09062005-101909.

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4

Tan, Benjamin H. "A Novel Arc Welding Power Supply with Improved Power Factor Correction." DigitalCommons@CalPoly, 2020. https://digitalcommons.calpoly.edu/theses/2199.

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This paper presents the design and development of a novel Arc Welding Power Supply utilizing a modified two-switch forward converter topology. The proposed design improves the power quality by improving power factor to near unity and reducing total harmonic distortion. State space analysis of the proposed circuit showed that the circuit followed a boost-buck input output relationship. Simulation of the circuit was first implemented in LTspice to verify the functionality of the new topology. Hardware implementation of the proposed design was built on a scaled-down prototype for a proof-of-conce
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5

Moonda, Zaheer. "Does the Intra-operatively measured Leg Length Correction compare to the Post-operative radiograph in Total Hip Replacement surgery?" Master's thesis, Faculty of Health Sciences, 2021. http://hdl.handle.net/11427/33852.

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Aims This study aims to compare the leg length correction (LLC) measured intra-operatively using the Vertical Measurement SystemTM (VMS) in total hip arthroplasty (THA), with the LLC measured on a 6-week post-operative Xray. We also wanted to quantify any residual leg length discrepancy (LLD) using this method. Patients and Methods A prospective cohort study was conducted, in which patients undergoing primary THA were enrolled at two centres in Cape Town, over a period of 19 weeks. THA's were performed by four surgeons. Pre-operative leg length discrepancy measurements were obtained in 92 pati
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Mathie, Devan M. "Assessing an In-Situ Total Algae Sensor Fluorometer for Performance in Freshwater Estuaries." Kent State University Honors College / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors1588015130835849.

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7

Vývoda, Marek. "Kompenzace účiníku a posouzení zpětných vlivů indučního ohřevu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219077.

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This Diploma thesis deals with design of for power factor correction device for mid-frequency-range induction heating and also with assessment of correction device influence in harmonically distorted environment from the distribution net point of view. Research chapters contain of main characteristics of electrical power quality and theoretical background of reactive power, which is in our case caused by driven non-linear elements. Further, the heating power supply block is explained and simulations of power consumption in Matlab - Simulink is done, within the prove of corrective tools design.
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8

Grbovic, Petar. "Dispositif correcteur de facteur de puissance à base de super-condensateur pour variateur de vitesse." Thesis, Ecole centrale de Lille, 2010. http://www.theses.fr/2010ECLI0009/document.

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Les variateurs de vitesse modernes sont exclusivement basés sur l’utilisation de moteurs triphasés alimentés par des onduleurs à modulation de largeur d’impulsion (MLI). La plupart des applications modernes de la variation de vitesse, comme les ascenseurs, les grues et les machines-outils sont caractérisées principalement par un rapport élevé entre la puissance crête et la puissance moyenne et une forte demande de freinage à la puissance nominale. Dans les variateurs de vitesse ordinaires, l’énergie de freinage, qui est de l’ordre de 30 à 50% de l’énergie consommée, est dissipé dans une résist
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9

Costantin, Paulo Dutra. "Fatores condicionantes da produtividade agrícola no Brasil no período de 1970 a 2005: uma abordagem neoclássica." Universidade Presbiteriana Mackenzie, 2007. http://tede.mackenzie.br/jspui/handle/tede/839.

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Made available in DSpace on 2016-03-15T19:31:14Z (GMT). No. of bitstreams: 1 Paulo Dutra Costantin.pdf: 1161497 bytes, checksum: 80c40c8fcef9308bff7d9389b7a7a3f0 (MD5) Previous issue date: 2007-11-09<br>Instituto Presbiteriano Mackenzie<br>The current work aims to provide an inquiry into the causes of productivity increase observed in the Brazilian agricultural sector from the 1970s till the early years of the 2000s. Its working hypothesis is that gains in productivity are explained by factors like increased rural credit, research (technology), tractors, fertilizers and pesticides. More spec
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10

Bernáth, František. "SW nadstavba analyzátoru sítí pro automatický návrh nn kompenzační jednotky na základě měření." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218704.

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Thesis is devoted to a problem of Power Factor Correction on the low voltage level. It has still its own difficulties despite the fact that topic moved through long development. The main goal of this work is to offer reader variable procedure considering design process. It is based on use of measured data of network analyzer Meg30. The design algorithm has to share a maximum of eventual influencing factors. Therefore the body of master thesis goes through detailed analysis of Power Factor Correction.
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11

Göker, Fuat, and Christoffer Hedberg. "Utvärdering av faskompenseringsmetoder för ett småskaligt vattenkraftverk : Genomgång av kondensatorbatteri, aktiv och passiv reglering, övermagnetiserad synkronmaskin, SVC och STATCOM på Fröslida kraftverk." Thesis, KTH, Hälsoinformatik och logistik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230165.

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Småskalig vattenkraft är en stor användare av reaktiv effekt då de ofta har asynkrongeneratorer. Det gör att det finns ett reellt behov för faskompensering, dels för att minska distorsion i nätet samt för att förbättra deras ekonomiska ställning, då elbolag ofta tar ut en avgift för överskridande användning av reaktiv effekt. Det ligger också i allmänhetens intresse att ha en god elkvalitet och hålla störningar och avbrott nere, vilket kan erhållas med faskompensering och filtrering av övertoner. Det finns olika tekniker för faskompensering med sina respektive för- och nackdelar som specificer
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12

Wu, Jian. "Contribution to numerical simulation of electrohydrodynamics flows : application to electro-convection and electro-thermo-convection between two parallel plates." Thesis, Poitiers, 2012. http://www.theses.fr/2012POIT2263/document.

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Dans cette thèse, nous présentons une nouvelle approche pour la simulation numérique des phénomènes électroconvectifs et électro-therrno-convectifs. La principale difficulté réside dans la détermination du champ électrique et de la distribution de densité volurnique de charges électriques. Dans cette approche, des schémas de type TVD (Total Variation Dirninishing) et IDC (ImprovedDeferred Correction) sont utilisées dans la discrétisation des flux convectifs et diffusifs par la méthode des volumes finis. La première partie de cette thèse présente certains aspects numériques liés à l'implémentat
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13

Guiraud, Jeanne. "Effets de la surdité totale et de la réhabilitation auditive par l'implant cochléaire sur l'organisation fonctionnelle du système auditif." Lyon 2, 2006. http://theses.univ-lyon2.fr/documents/lyon2/2007/guiraud_j.

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La plasticité de réhabilitation auditive chez l'implanté cochléaire a été étudiée à l'aide de mesures électrophysiologiques et psychophysiques. Les effets de la surdité sur l'organisation fonctionnelle du système auditif ont d'abord été montré. Nous avons montré une désorganisation des cartes tonotopiques corticales et un ralentissement de la vitesse de transmission de l'information auditive. Ainsi, des processus de plasticité seront certainement nécessaires pour contrer l'impact de la surdité. Ensuite, il a été mis en évidence comment les différences qui existent entre une stimulation acousti
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14

Pouliot, Martin. "Synthèse totale du (-)-panacène et correction de sa configuration relative & synthèse totale de la cadiolide B et du Vioxx(R) par la fonctionnalisation séquentielle et régiosélective de furanones." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/24125/24125.pdf.

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15

Nhlapo, Tsholo Mzawazi Solomon. "The implementation of human resource development strategy for total quality management within the Department of Correctional Services : focus on Groenpunt management area / Tsholo Mzawazi Solomon Nhlapo." Thesis, North-West University, 2010. http://hdl.handle.net/10394/4831.

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To improve on service delivery, the challenge is to ensure that the correctional officials understand and are skilled in dealing with demands for better standard of service delivery by the public. There is a perception that current training programmes are too fragmented and that training does not receive the priority it deserves. There is also a feeling that current training is still too much focused on the training needs of the ''top" echelons (managers) and not the "bottom" end of the Department of Correctional Services, especially those directly dealing with day to day work situation. This
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16

Dellagi, Sofiène. "Développement de stratégies de maintenance dans un contexte de sous-traitance partielle de production." Metz, 2006. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/2006/Dellagi.Sofiane.SMZ0619.pdf.

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La modélisation impose de nos jours une remise à plat des politiques de gestion industrielle. Cette remise à plat est nécessaire pour la survie des entreprises évoluant dans un contexte de concurrence exacerbé et sans limite. Les politiques de maintenance des systèmes de production n'échappent pas à ce constat et leur remise en cause est nécessaire dans ce contexte. En effet, les politiques de maintenance traditionnelle ne permettent pas d'assurer la pérennité ainsi que la croissance durable pour les entreprises d'aujourd'hui, où la réduction des coûts et des délais est devenue l'objectif prin
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17

Fredhav, Dennis, and Sjöstrand Carl Andreas Briggert. "Beräkning av värmeenergiförluster i flerbostadshus genom analys av den totala fjärrvärmeenergianvändningen :." Thesis, Linnéuniversitetet, Institutionen för teknik, TEK, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-20215.

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This thesis has been carried out on behalf of IV Produkt AB and intends to set an average ratio of thermal energy losses in apartment buildings that were built during the 1960-1990. This shall be derived by analyzing the total district energy consumption that has been divided into three parts: heat energy losses (the actual heating requirements), the heating of domestic hot water and heating energy consumption for the controlled ventilation. Three different residential areas that were built during the years 1962-1966 and one that was built in 1993 has been analyzed. All residential areas are l
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18

Grbovic, Petar J. "Dispositif correcteur de facteur de puissance à base de super-condensateur pour variateur de vitesse." Phd thesis, Ecole Centrale de Lille, 2010. http://tel.archives-ouvertes.fr/tel-00585405.

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Les variateurs de vitesse modernes sont exclusivement basés sur l'utilisation de moteurs triphasés alimentés par des onduleurs à modulation de largeur d'impulsion (MLI). La plupart des applications modernes de la variation de vitesse, comme les ascenseurs, les grues et les machines-outils sont caractérisées principalement par un rapport élevé entre la puissance crête et la puissance moyenne et une forte demande de freinage à la puissance nominale. Dans les variateurs de vitesse ordinaires, l'énergie de freinage, qui est de l'ordre de 30 à 50% de l'énergie consommée, est dissipé dans une résist
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19

Hájková, Marcela. "Zavedení účinného systému HACCP ve firmě Cutisin s.r.o." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2009. http://www.nusl.cz/ntk/nusl-222204.

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This Master´s thesis is focused on the proposition of system HACCP as appropriate solution incurred complaint. I start from the theoretical bases and from analysis of the current state in the company Cutisin s.r.o. The particular part is included hazard analysis of single step of the process plan, critical control points in production, precautionary measures and corrective action.
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20

Nien, Wei-Jen, and 粘為任. "Use total focusing method and refraction correction to improve phase array acoustic image." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/61893796839114389060.

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碩士<br>國立中正大學<br>地震研究所暨應用地球物理研究所<br>97<br>Compare to single element traditional ultrasonic probe, The phased array source which has several elements is widely used in medical images and nondestructive testing (NDT), Because of its excellent controllable, so we can transmit any direction wavefront by time shift. The synthetic aperture focusing technique (SAFT)is use in traditional ultrasonic probe, and total focusing method (TFM)is use in phased array probe. Both of synthetic aperture focusing technique and total focusing method are a way to improve acoustic image. In nondestructive testing, we
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21

Thompson, David Andrew. "Pilot signal correction and physical temperature compensation of drift in total power radiometers." Thesis, 2002. http://wwwlib.umi.com/cr/utexas/fullcit?p3108518.

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22

Huxtable, Barton Duane. "Absence of a Scott Correction for the Total Binding Energy of Noninteracting Fermions in a Smooth Potential Well." Thesis, 1988. https://thesis.library.caltech.edu/3349/11/huxtable_bd_1988.pdf.

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<p>It is shown, for V in a particular class of smooth functions, that the total binding energy, E(Z), of Z noninteracting Fermions in the potential well Z<sup>4/3</sup>V(Z<sup>1/3</sup>x), obeys E(Z) = c<sub>TF</sub>(V)Z<sup>7/3</sup> + 0(Z<sup>5/3</sup>) as Z → ∞. Here c<sub>TF</sub>(V) is the coefficient predicted by the Thomas-Fermi theory. This result is consistent with the conjectured Scott correction, which occurs at order Z<sup>2</sup>, to the total binding energy of an atom of atomic number Z. This correction is thought to arise only because V(x) ~ - |x|<sup>1</sup> near x - 0 in the a
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23

Ni, Chia-Lung, and 倪嘉隆. "0.99 PF and 1.7% THD by Line Voltage Recovery and Total Harmonic Distortion Optimizer in Power Factor Correction Controller." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/54jh26.

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碩士<br>國立交通大學<br>電控工程研究所<br>101<br>As populations increase and countries industrialize, the world’s demand for energy increases. In recent years, the energy-shortage problem becomes more serious. Therefore, the issue of green power is respected gradually. Power factor correction (PFC) can shape the input current of off-line power supplies to be in-phase with the input AC voltage in order to maximize the available real power from the AC source to achieve high power factor (PF). The total harmonic distortion (THD) of input current is an important factor for PF. Considering high power factor (PF)
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24

Chang, Yu-Ling, and 張瑜玲. "Needs and Satisfation of Parents having Children undergone Intensive Post-operation Care for Total Correction of Congenital Heart Disease." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/00395513020310231609.

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碩士<br>國防醫學院<br>護理研究所<br>87<br>The purpose of this study was to explore needs and satisfaction of parents having children undergone intensive post-operation care for total correction of congenital heart disease, as well as, to investigate the variables of parents'' needs and satisfaction. "Survey design" and "Purposive sampling" had been used in this study. These samples were chose from intensive care units (ICUs) of two medical centers in Taipei. There are sixty-six questionnaires were given to parents, and forty-four were returned, that is to say, those return of questionnaires were from twen
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25

蔡仁杰. "High Efficiency and Low Total Harmonic Distortion Power Factor Correction Controllers with Automatic Loading Detection and Perturbation On-time Techniques." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/89786690166223606347.

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博士<br>國立交通大學<br>電控工程研究所<br>100<br>The power factor correction (PFC) controller is more popular in today’s green power mainstream for improving power utilization efficiency. The power factor correction shapes the input current of off-line power supplies to increase the real power available from the AC source. First, the proposed perturbation on-time (POT) technique suppresses total harmonic distortion (THD) and thus improves the power factor (PF) in the power factor correction (PFC) controller. Besides, the adaptive controls of the minimum off-time by the proposed inhibit time (IT) control
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26

Brolund, Andreas. "Evaluation of power quality and common design concept for AC-DC converters in aircraft." Thesis, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-337969.

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This master thesis has been carried out in collaboration with Saab, Avionics Systems in Jönköping, Sweden, during the spring of 2017. The thesis investigates unidirectional rectifier topologies in aircraft and the focus has been on evaluating the power quality requirements according to the aircraft standards, in the course of the More Electric Aircraft concept. Both passive and active power factor correction topologies are considered, discussed and compared. Simulation models are designed in MATLAB/Simulink and the procedures are presented. A modular concept regarding components is discussed
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"Synthèse totale du (-)-panacène et correction de sa configuration relative & synthèse totale de la cadiolide B et du Vioxx(R) par la fonctionnalisation séquentielle et régiosélective de furanones." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/24125/24125.pdf.

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28

Mahlangu, Jethro Padya. "Guidelines for successful implementation of total productive maintenance in a chemical plant / Jethro Padya Mahlangu." Thesis, 2014. http://hdl.handle.net/10394/15382.

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With the world economy becoming unpredictable, it has become a necessity for businesses to relook at the way they do business. The world has become competitive and companies that aim to become profitable have seen the need to find ways to improve efficiencies and increase productivity to stay relevant. There has been an adoption of strategies that are aimed at improving the efficiencies in companies such as Total Productive Maintenance (TPM). The strategy is aimed at improving equipment efficiencies and increase productivity through the transfer of certain skills from maintenance personnel to
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