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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.
181

A Corpus-based Investigation of Lexical Cohesion in EN and IT Non-translated Texts and in IT Translated Texts

Giannossa, Leonardo 26 June 2012 (has links)
No description available.
182

Life Cycle Assessment of a 3D printer : A comparative and attributional life cycle assessment of 3D printer / Livscykelbedömning av 3D-skrivare

Senthil, Rishi Akash Chinnakonda January 2022 (has links)
Three-dimensional (3D) bio printing offers a wide range of applications, including the placement, design, and patterning of biological components such as living cells, nucleic acids, tissues, and many more. Bioprinting has seen great growth and breakthroughs in recent years, particularly in 3D printing. The company (which do not want to be named) produce a user- friendly and adaptable bioprinter that provides the best bioprinting experience.  This thesis examines the environmental consequences of a 3D printer, through Life Cycle Assessment (LCA) over its lifetime which is anticipated to be 1 year for the study. To examine the impacts of the 3D printer over its lifetime, a comparative life cycle assessment (Comparative LCA) and attributional life cycle assessment (ALCA) was undertaken between the supply chains known as linear supply chain (LSC) and circular supply chain (CSC). Global warming (GW), terrestrial acidification (TA), freshwater eutrophication (FET), terrestrial ecotoxicity (TEC), freshwater ecotoxicity (FEC), marine ecotoxicity (MEC), land use (LU), and water consumption (WC) are the impact categories chosen for the study from ReCiPe 2016 (H) Midpoint.  According to the LCA results, the impacts generated by CSC are smaller than those contributed by LSC, and the impact categories that are most and least affected are recognized. Furthermore, from the 3D printer, potential hotspots with higher contributions were discovered. Airway transfer of 3D printer’s components from their manufacturing site to the company had a significant impact on the impact categories chosen. Printed Circuit Boards (PCB) used in 3D printers are another influential component that has a significant impact on the impact categories. When specifically looking, the manufacture of Integrated Circuits (IC) has a greater impact, which reflects on PCB production.  To identify the opportunities and improve 3D printer’s environmental performance, a sensitivity analysis is carried out, which yields results on how to improve its environmental performance. As a result, it is suggested that airway transportation be modified with seaway transportation, that virgin aluminium and copper materials be replaced with its scrap material / Tredimensionell (3D) bioprinting erbjuder en mängd olika applikationer, inklusive placering, design och mönster av biologiska komponenter, såsom levande celler, nukleinsyror, vävnader och mer. De senaste åren har bioprinting fått många genombrott och vuxit mycket, framför allt inom 3D-printing. Företaget (som inte vill bli namngivet) producerar en användarvänlig och anpassningsbar bioprinter som ger den bästa bioprinterupplevelsen.  Detta examensarbete undersöker den miljöpåverkan som en 3D-skrivare har, genom livscykelanalys (LCA) under sin livslängd, som beräknas vara 1 år för denna studie. För att undersöka 3D-skrivarens påverkan under dess livstid har en jämförande livscykelanalys (Comparative LCA) och attributionell livscykelanalys genomförts mellan försörjningskedjorna, som kallas linjär försörjningskedja (LSC) och cirkulär försörjningskedja (CSC). Global uppvärmning (GW), terrestrisk försurning (TA), sötvattenseutrofiering (FET), terrestrisk ekotoxicitet (TEC), sötvattenekotoxicitet (FEC), marin ekotoxicitet (MEC), markanvändning (LU) och vattenförbrukning (WC) är kategorier valda för studier från ReCiPe 2016 (H) Mid Point. Enligt LCA-resultat är miljöpåverkan från CSC mindre än den som LSC bidrar med. Dessutom, med 3D-skrivare, har potentiella hotspots med högre bidrag upptäckts.  . Luftburen överföring av 3D-skrivarkomponenter från deras tillverkningsplats till företaget hade en inverkan på de berörda kategorierna. Printed Circuit Boards (PCB) som används i 3D-skrivare är en annan påverkande komponent. Mer specifikt har tillverkning av integrerade kretsar (IC) en stor inverkan.  För att, identifiera utsläpp och möjligheter och förbättra 3D-skrivarens miljöprestanda, genomförs en känslighetsanalys som ger resultat om hur man kan förbättra dess miljöprestanda. Som ett resultat föreslås att flygtransporter ersätts med sjötransporter, att jungfruligt aluminium och kopparmaterial ersätts med dess ersätts material.
183

A Plethysm Formulation for Operadic Structures and its Relationship to the Plus Construction

Michael Monaco (18429858) 25 April 2024 (has links)
<p dir="ltr">We first introduce several families of monoidal categories with plethysm products as their monoidal products and use this to describe operadic structures as plethysm monoids. In order to link this approach with the classical theory, we give a generalization of the Baez-Dolan plus construction. We then show that an operadic structure can be defined as a plethysm monoid if its associated Feynman category is a plus construction of a unique factorization category.</p>
184

Koszulness of Torelli Lie algebras

São João, José January 2023 (has links)
No description available.
185

Gatekeeping Analysis of The Asian Magazine: A Case Study

Yang, Guolan 02 June 2015 (has links)
As one of the most enduring theories in communication, gatekeeping suggests that stories have to move from one gate to another gate before being published. During this process, some stories are selected, while others are rejected. Previous studies heavily focus on traditional news media and explore the influence of internal and external forces on story selection. Very few studies, however, look at gatekeeping in new areas of technology. This case study extends this literature into social media. It looks at how editors at The Asian Magazine (TAM) select stories for its WeChat public account. Interviews with editors identify news values and news categories that these gatekeepers think are important. Results of the WeChat content analysis between May and August 2014 indicate that TAM editors do not strictly rely on established news values to select WeChat stories. News categories better predict story decisions. Examining which WeChat items generate the most reader engagement gives evidence of how well news content matches what attracts readers online. News category priorities closely match what readers want to read. / Master of Arts
186

Cluster structures for 2-Calabi-Yau categories and unipotent groups

Scott, J, Reiten, I, Iyama, O, Buan, A.B. 12 1900 (has links)
No description available.
187

Uma construção alternativa para o funtor de Happel

Lima, Maria Elismara de Sousa 23 February 2018 (has links)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / The aim of this dissertation is to present a simpli cation of the proof of the following result obtained rst by Happel in [3]: If A is a nite-dimensional algebra over a eld algebraically closed K, then there is a triangulated, full and faithful functor of triangulated categories H : Db(modA) ! modA^, where A^ is the repetitive algebra obtained from A, which is also dense if A is of nite global dimension. We begin with a succinct presentation of the categorical language, approaching in general terms on the localization of categories, triangulated categories and their localizations, and nally derived categories, which are localized and triangulated categories. We also introduce the stable category of modules of a repetitive algebra A^. In the last chapter, we demonstrate the main result with the help of a result found in [8], in addition to the previously mentioned concepts. / O objetivo dessa disserta c~ao e trazer uma simpli ca c~ao da demonstra c~ao do seguinte resultado obtido primeiramente por Happel [3]: Se A e uma K- algebra de dimens~ao nita, ent~ao existe um funtor pleno, el e triangulado H : Db(modA) ! modA^, onde A^ e a a lgebra repetitiva obtida de A, que e tamb em denso se A e de dimensa~o global nita. Iniciamos com uma apresenta c~ao sucinta da linguagem categ orica, abordando de maneira geral sobre localiza c~ao de categorias, categorias trianguladas e suas localiza c~oes, e nalmente categorias derivadas, que s~ao categorias localizadas e trianguladas. Tamb em introduzimos a categoria est avel de m odulos da algebra repetitiva de A. No ultimo cap tulo, demonstramos o resultado principal com o aux lio de um resultado encontrado em [8], al em dos conceitos citados anteriormente. / São Cristóvão, SE
188

Breaking verbs : from event structure to syntactic categories in Basque / Décomposition verbale : de la structure événementielle aux catégories syntaxiques en basque

Berro Urrizelki, Ane 09 September 2015 (has links)
La présente thèse analyse la décomposition sous-événementielle et l'interprétation aspectuelle des événements, en se focalisant sur les prédicats dérivés du basque, tels que dantzatu “danser” du nom dantza 'danse', amets egin 'rêver' du nom amets “rêve”, etxeratu 'revenir à la maiso' de etxera “à la maison” ou amatu “devenir mère” de ama “mère”. La thèse est centrée sur la configuration syntaxique représentant la structure événementielle des prédicats et la lexicalisation de ces configurations par des mots réels. J'admets que les prédicats se décomposent en composants plus basiques (par exemple, Levin and Rappaport Hovav 1995), et que cette décomposition est syntaxiquement représentée (Hale and Keyser 1993). Dans cette vue, les événements exprimés par les prédicats sont formés de sous-événements, qui peuvent être aussi bien des processus que des états (Harley 1995 2005, Cuervo 2003, Folli & Harley 2005, Ramchand 2008) et de compléments rhématiques (Ramchand 2008). Les rhèmes sont des compléments qui mesurent et décrivent les sous-événements dont ils sont les compléments. Ils peuvent être de différents types: des PPs, des DPs quantifiés, et même des radicaux non catégorisés. Partant de Harley (2005), je propose une ontologie des radicaux qui les classifie selon qu'ils nomment un Evénement, une Chose ou une Propriété. Les radicaux qui dénomment des Evénements et des Choses sont les compléments de sous-événements de type processus; tandis que les radicaux qui dénomment des Propriétés sont les compléments des états. A l'intérieur de chaque classe, les propriétés des mesures associées aux radicaux comme [+/-croissant], [+/- limite minimale] et [+/- limite maximale] déterminent les propriétés aspectuelles de l'événement tout entier, à savoir, s'il est ponctuel ou duratif, s'il est télique ou atélique. La thèse examine également les interactions entre l'interprétation aspectuelle interne des prédicats (aktionsart), et l'aspect externe (Smith 1997 [1991]). Cette relation est analysée en tenant compte de la catégorie lexicale à la base du prédicat et des différentes configurations de réalisation des prédicats en basque. / This dissertation analyses the subeventive decomposition and aspectual interpretation of events, paying special attention to derived predicates in Basque, like dantzatu ‘to dance’ from dantza ‘dance’, amets egin ‘to dream’ from amets ‘dream’, etxeratu ‘to go home’ from etxe-ra ‘to home’ and amatu ‘to become a mother’ from ama ‘mother’. The discussion is mainly concerned with the syntactic configuration that represents the predicates’ event structure and the lexicalization of these configurations by means of actual words. In this dissertation, it is assumed that predicates can be decomposed into more basic components (e.g. Levin & Rappaport Hovav 1995) and that this decomposition is syntactically represented (Hale & Keyser 1993). To be more precise, in the analysis made in this dissertation, it is assumed that the events conveyed by predicates consist of smaller subevents (Harley 1995 2005, Cuervo 2003, Folli & Harley 2005, Ramchand 2008) (which can be either processes or states) and Rheme objects (Ramchand 2008a). Rhemes are complements which describe and measure the particular subevent they are complementing. They can be of different types: PPs, quanticized DPs and even a-categorial Roots. Building on Harley (2005), I propose an ontology of Roots which classifies different types of Roots depending on whether they name an Event, a Thing or a Property. Event and Thing naming Roots are the complements of the process subevent, whereas Property naming Roots are the complements of states. Within each class, properties of the measure associated to each Root like [±incremental], [±lower bound] and [±upper bound] are going to determine the aspectual properties of the entire event, i.e. whether it is durative or punctual, and telic or atelic. Additionally, this dissertation considers the interaction of the aspectual interpretation of the predicates (commented in the previous paragraph) with viewpoint aspect (Smith 1997 [1991]). This relation is going to be analyzed in combination with the lexical category and the different configurations in which a predicate can surface in Basque.
189

Categorical quantum computation

Paquette, Éric Oliver January 2008 (has links)
Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal.
190

Categorical quantum computation

Paquette, Éric Oliver January 2008 (has links)
Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal

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