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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Algorithmic Modifications to a Multidisciplinary Design Optimization Model of Containerships

Ganguly, Sandipan 24 July 2002 (has links)
When designing a ship, a designer often begins with "an idea" of what the ship might look like and what specifications the ship should meet. The multidisciplinary design optimization model is a tool that combines an analysis and an optimization process and uses a measure of merit to obtain what it infers to be the best design. All that the designer has to know is the range of values of certain design variables that confine the design within a lower and an upper bound. The designer then feeds the MDO model with any arbitrary design within the bounds and the model searches for the best design that minimizes or maximizes a measure of merit and also meets a set of structural and stability requirements. The model is multidisciplinary because the analysis process, which calculates the measure of merit and other performance parameters, can be a combination of sub-processes used in various fields of engineering. The optimization process can also be a variety of mathematical programming techniques depending on the type of the design problem. The container ship design problem is a combination of discreet and continuous sub-problems. But to avail the advantages of gradient-based optimization algorithms, the design problem is molded into a fully continuous problem. The efficiency and effectiveness with which an optimization process achieves the best design depends on how well the design problem is posed for the optimizer and how well that particular optimization algorithm tackles the type of design problems posed before it. This led the author to investigate the details of the analysis and the optimization process within the MDO model and make modifications to each of the processes, so that the two become more compatible towards achieving a better final design. Modifications made within the optimization algorithm were then used to develop a generalized modification method that can be used to improve any gradient-based optimization algorithm. / Master of Science
22

Modelling and analysis of sustainable operations management: certain investigations for research and applications

Gunasekaran, A., Irani, Zahir, Papadopoulos, T. 2013 December 1918 (has links)
Yes / Sustainable operations management (SOM) can be defined as the operations strategies, tactics and techniques, and operational policies to support both economic and environmental objectives and goals. The subject of sustainability has gained much attention from both researchers and practitioners in the past 6–8 years. Most of the articles deal with sustainability from environmental perspectives, but a limited number of them integrate both economic and environmental implications or focus on trading-off between profitability, competitiveness and environmental dimensions. Moreover, there is a limited focus on modelling and analysis (MA) of SOM integrating and balancing the interests of both economic and environmental interests. Therefore, an attempt has been made in this paper to review the extant literature on SOM. The objective is to understand the definition of SOM and present the current status of research in MA, as well as future research directions in the field. Considering the recent focus of the subject, we review the literature on MA of SOM beginning in 2000 in order to make our study current and more relevant for both researchers and practitioners. Finally, a summary of findings and conclusions is reported.
23

Mesure de la distribution du champ en chambre réverbérante par la théorie des perturbations : application à l'étude des directions d'arrivée / Field measurement within reverberation chamber by using perturbation theory : application to Angle of arrival study case

Nasserdine, Mohamed M'Madi 25 September 2015 (has links)
Ce travail porte sur les techniques de mesure des champs en cavité électromagnétique et plus précisément en chambre réverbérante. En raison de la perturbation induite sur la distribution du champ au sein d'une cavité résonante par la présence d'un objet, les techniques de mesure de champ classiques utilisant une antenne souffrent d'une précision limitée. Par conséquent, nous proposons une nouvelle technique de mesure de la distribution du champ électrique basée sur la théorie des perturbations. Elle consiste à mesurer les variations de la fréquence de résonance de la cavité pour chaque position de l'élément perturbateur introduit dans la cavité, puis à en déduire la variation de l'amplitude du champ électrique. Le choix de la forme de l'objet perturbateur, de ses dimensions et de son matériau constitutif est effectué à partir des résultats des simulations et des mesures dans un cas canonique, de façon à adapter le banc de mesure au cas étudié. Cette technique de mesure est ensuite appliquée avec succès au cas d'une chambre réverbérante équipée d'un brasseur de modes, ainsi qu'à des mesures de champ à l'intérieur d'un boitier inséré dans la cavité. Cette approche a permis, via un post-traitement basé sur l'utilisation de l'algorithme MUSIC, de déterminer avec une grande précision les directions d'arrivée des champs dans la chambre réverbérante / This work deals with field measurement techniques in large electromagnetic enclosures namely reverberation chambers. Due to the perturbation of the field distribution within a resonant cavity due to the presence of an introduced object, conventional field measurement techniques employing an antenna suffer from a limited accuracy. Therefore we propose a new measurement technique of the electric field distribution based on the perturbation theory; it consists of a measure of the cavity resonant frequency variation when displacing a small perturbing object within the cavity, and leads to the electric field distribution. The choice of the perturbing object shape, dimension and material is discussed with the help of simulation and measurement results in a canonical case in order to adapt the measurement setup to the studied case. This technique is then successfully employed in a reverberation chamber equipped with a mode stirrer, as well as to measure the field within a metallic box placed in the cavity. Using a post-processing based on MUSIC algorithm, this approach has permitted to determine accurately the field directions-of-arrival in the reverberation chamber
24

Étude de l’orientation cardinale sud dans les sépultures mayas de la Période Classique

Lessard, Sandrine 12 1900 (has links)
Ce mémoire porte sur l’étude de l’orientation des sépultures mayas de la Période Classique (250 - 900/1000 de notre ère). Il s’agit d’une recherche visant à comprendre le choix d’une orientation sud des défunts dans la vallée du Belize et ses environs. L’intérêt porté à cette région vient du fait que l’orientation sud des défunts est un phénomène que l’on retrouve rarement sur le territoire maya, sauf à cet endroit. Alors que la présence de la cardinalité en lien avec la cosmovision maya est attestée dans l’architecture, le plan des sites, la forme et la fonction des divinités, dans l’agriculture, etc., il est plutôt rare qu’elle soit analysée dans les études du traitement funéraire. Ainsi, le but de cette recherche est de saisir l’ampleur de la pratique de l’orientation sud des défunts sur le territoire maya, de comprendre son origine et sa ou ses possible(s) signification(s). Les données des sépultures de la Période Classique de cinq sites de la vallée du Belize (Baking Pot, Barton Ramie, Blackman Eddy, Cahal Pech et Xunantunich), de quatre sites du Plateau Vaca (Minanha, Pacbitun, Mountain Cow et Caracol) et de trois sites situés à l’ouest (Holmul) et au nord (San José et Altun Ha) de ces deux régions sont compilées. Les résultats révèlent que le coeur de cette pratique se trouve dans la vallée du Belize, bien qu’une orientation sud des défunts ait été retrouvée partout. Cette pratique semble apparaitre à la fin de la Période Préclassique et les analyses ne révèlent pas de lien entre l’orientation sud et certaines variables (âge, sexe, position du défunt). Finalement, on arrive à la conclusion qu’il est possible que cette orientation sud des défunts soit en lien avec le passage des défunts dans l’inframonde et que cela forme un choix culturel local en lien avec le statut et l’identité du défunt. / This thesis focuses on the study of the orientation of Classic Maya burials (AD 250 - 900/1000). The research is directed towards the understanding of the presence of the south orientation of burials in the Belize Valley and its surroundings. While the presence of the cardinality of the Mayan worldview is established as reflected in the architecture, settlement patterns, form and function of divine agents, agriculture, etc., it is rarely analyzed in funerary treatment studies. Thus, the aim of this research is to understand the extent of the practice of the south orientation of the deceased on the Mayan territory, to understand its origin, and its possible signification(s). Data from the Classic burials of five Belize Valley sites (Baking Pot, Barton Ramie, Blackman Eddy, Cahal Pech, and Xunantunich), four Vaca Plateau sites (Minanha, Pacbitun, Mountain Cow, and Caracol), and three sites located west (Holmul) and north (San José and Altun Ha) of the two previous regions have been compiled. The results reveal that the heart of this practice lies in the Belize Valley, although a south orientation of the deceased was found everywhere. This practice seems to appear at the end of the Preclassic Period and analysis revealed no link between south orientation and certain variables (age, sex, position of the deceased). Finally, it was found that it is possible that south orientation of the deceased is connected with the passage of the deceased in the underworld, and that it is a local choice in connection with the status and the identity of the deceased.
25

Le stress professionnel des directions d'école au Québec : sources du stress, vécu émotionnel et ajustements

Poirel, Emmanuel January 2009 (has links)
Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal.
26

3D-2D-3D

JOHANSSON, ANNA January 2014 (has links)
The area of this work is a combination of draping and printing. It strives towards the technique that dazzles the eye with illusions of more than one dimension. As a viewer you will believe that the prints are real drapings while they are flat surfaces. Today prints in fashion are categorized as placed prints or all-over prints, and generally created as a flat surface to decorate the garments. In this work the idea is to manipulate and challenge the boundaries of print and give it life through the body shapes and in the movement. Potentially this work could be an introduction to a new way of working with prints in fashion. This work could poosibly be presented as a new technique where placed- print and all-over prints comes together- called placed all-over prints. Also, it could develop into further techniques in using two-dimensional flatness and save fabric in using photography as an option to the real three-dimensional drapings. Furthermore could it mean savings in material as a conscious choice in the process ? This investigation explores two particular kinds of techniques, - print and draping, that are merged into one expression. The aims of this work is to find new ways of using print in combination with draping in dress and explore the possibilities to find a new technique to create interesting womenswear. To unite dimensions like two-dimensional and three-dimensional as a method of finding new forms and expressions. Through experiments with striped textiles the focus is to investigate the possibilities of greater visual effects on two-dimensional prints. For a depth and to exaggerate the directions in the fabric before translating it into a flat surface the striped textile can be a tool for further design. The striped textile has the potential to help the eye to understand the directions in the print and can be used in more than one dimension and color. To explore how to create 3D effect on 2D in print design through draping in dress is the aim of this work. / Program: Modedesignutbildningen
27

Relações dialógicas entre O Barão, de Sttau Monteiro e o conto homônimo, de Branquinho da Fonseca / Dialogical relations between The Baron, of Sttau Monteiro and the homonym tale, of Branquinho of Fonseca

Freire, Rogeria Alves 19 September 2008 (has links)
Esta dissertação visa a demonstrar como o conto O Barão, de Branquinho da Fonseca, publicado em 1942, foi estilizado por Sttau Monteiro. Para tanto, examina alguns mecanismos intertextuais presentes na peça homônima adaptada para o teatro em 1964. Inicialmente, discutimos o conceito de intertextualidade, a partir dos estudos sobre a linguagem empreendidos por Mikhail Bakhtin, e das contribuições teóricas de Julia Kristeva, além de outros pesquisadores, que têm, ao longo do tempo, pesquisado e ampliado as diretrizes bakhtinianas em torno do dialogismo. Dentro de tais princípios também serão investigadas as mensagens sugeridas pelas rubricas. Finalmente, a análise dos mecanismos intertextuais e da visão sócio-política estilizada visa a confirmar que Sttau estilizou a obra de Fonseca. / This lecture intend to demonstrate how the short-story O Barão, by Branquinho da Fonseca, published in 1942, was stylished by Sttau Monteiro. Thus, we describe some intertextual mechanisms constant in the homonymous play adapted for the theater in 1964. To start, we will discuss the concepto if intertextuality, from the Mikhail Bakhtin studies about language, and the Julia Kristevas theoric contributions, besides other Researcher, that have enlarged the bakhtian directions on dialogism. Within those principles we are also investigating the messages suggested by the directions. Finally, the analysis of the intertextual mechanisms and of the socio-political conception of the playwright intend to confirm that Sttau stylished Fonsecas work.
28

Unlimited passion: the opposing schools of stage violence in Shakespeare and Kane

Brasherfons, Lukas 01 May 2017 (has links)
William Shakespeare and Sarah Kane are playwrights who for drastically different reasons have left indelible impacts upon the theatrical world. A key factor in each of their plays is the presentation of violence. Shakespeare uses violence for observable, orthodox reasons of driving the plot forward, while Kane uses it for sensory effect, social commentary, and for subverting traditional narrative expectations. This study examines how violence and fighting work as dramaturgical tools in these playwrights’ work, by individual examination, juxtaposition, and the use of other pieces of drama to inform these two differing schools of theatrical violence.
29

Trafficking/människohandel : En människas egentliga värde

Lindberg, Hannah January 2012 (has links)
With focal point on the national directions, created by Länsstyrelsen (Swedish county administration) in cooperation with National Method support against Trafficking (NMT), this paper aims to depict the phenomena trafficking and also portray the concurrent counteracting against trafficking in Sweden that authorities exert. All involved participants in this mechanism have their particular remit and their ability to interact is hence of utmost significance. In order to fully comprehend and be able to analyze these unified operative execution-elements and processes in Sweden we also have to understand what is proceeding in the international arena. The organized crime-combine is not restrained by boundaries and continuously develop and refine methods in sexual trafficking, that has grown into an expanding multibillion industry. International counteracting is consequently a worldwide existing matter of utmost interest. Therefore we will also, in our report, present international machines such as International Organization for Migration (IOM). In regard to the proceedings in the international arena, concerning empirical and methodical techniques and information of research findings, the International Organization for Migration (IOM) occupies the leading place in the analysis. The main focus, the cornerstone of this paper, is an inquiry into the formerly relatively unknown and unexplored aspects of what happens to individuals who have been subjected to sexual trafficking in Sweden after governmental intervention implicating forced re-allocation to the country-of-origin. There is an essential need for permanent structures for rehabilitation, acceptable socio-economic standard and effective methods to prevent victims of crime to be exposed to reoccurring exploitation. The basis for the analysis has been an organizational theory of society. This has been the foundation also for the understanding of collaboration between different actors and has accordingly given insight into the strengths and weaknesses of the mechanism of interaction.
30

Dokumentation av smärta och smärtbehandling hos barn med lårbensbrott på Akutmottagningen på Mora lasarett : - en journalstudie

Lindkvist, Maria, Lindberg, Thomas January 2009 (has links)
Syftet med studien var att granska hur smärta och smärtbehandling hos barn under 12 år med lårbensbrott dokumenterades enligt Socialstyrelsens föreskrifter i omvårdnadsjournalen på akutmottagningen på Mora lasarett. En retrospektiv journalstudie genomfördes på journaler tillhörande de barn med lårbensbrott som vårdats på akutmottagningen under en femårsperiod. Studien omfattade totalt 38 journaler. För att granska dokumentationens kvantitet och kvalitet användes en modifierad granskningsmall och granskningsnyckel CAT-CH-ING. Utifrån dessa kunde dokumentationen poängsättas och frekvensen av dokumentationen rörande smärta och smärtbehandling beräknas. Resultatet visade att omvårdnadsdokumentationen var bristfällig både vad gällde kvantitet och kvalitet. 13 av 38 journaler saknade helt anteckningar rörande smärta eller smärtbehandling. 16 journaler innehöll dokumentation av anamnes och eller status rörande smärta. Smärtbehandling fanns dokumenterad i 22 journaler, men bara en journal innehöll utvärdering av smärtbehandling. Slutsatsen var att 13 journaler av 38 helt saknade dokumentation rörande smärta eller smärtbehandling, trots att barnen hade en komplicerad fraktur. Övriga 25 journaler utom en hade bristfällig dokumentation enligt Socialstyrelsens föreskrifter.

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