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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.
471

Жанр фэнтези: проект серии «Неправильные попаданцы» Таши Танари : магистерская диссертация / Fantasy genre: the project of “The Irregular Popadantsy” series by Tasha Tanari

Петрова, Т. А., Petrova, T. A. January 2023 (has links)
Данный магистерский проект посвящен разработке серии романов «Неправильные попаданцы» в жанре фэнтези, публикуемых автором проекта под псевдонимом Таша Танари. В процессе создания авторского проекта учитываются теоретические положения понятий «массовая литература» и «словесность» с опорой на труды ученых, занимающихся изучением феномена массовой культуры. Также ключевым для проекта является представление о многообразии жанра фэнтези и его жанроспецифических особенностях. Результат проекта: изданный в 2023 году роман «Попаданец наоборот, или Эльф в деле»; подготовленный к изданию роман «Попаданка с пропиской, или Эльфийские каникулы»; перспективные планы по продолжению серии романов «Неправильные попаданцы». / This master’s project aims at developing a novel series “The Irregular Popadantsy” in the fantasy genre, published by the author of the project under the pseudonym Tasha Tanari. Within creating the project, the theoretical concepts of “mass literature” and “verbal art” are taken into account, based on the works of scientists engaged in the study of the phenomenon of mass culture. One more key idea is the diversity of the fantasy genre and its genre-specific features. The result of the project: the novel “Popadanets on the Contrary, or an Elf in Action” published in 2023; the novel “Popadanka with a Residence Permit, or Elven Holidays” prepared for publication; long-term plans for the continuation of the series of novels “The Irregular Popadantsy”.
472

Development of a Low Speed Wind Tunnel Test Campaign / Utveckling av Testkampanj för Vindhastighetstunnel med Låg Hastighet

Suewatanakul, Siwat January 2021 (has links)
This study was performed to investigate aerodynamic characteristics of the 37.5% scaled­ down Green Raven MK18 airframe, to evaluate boundary corrections method, and to investigate on support interference. A wind tunnel test was originally planned on June 2021 at a Large­Low­Speed Wind Tunnel at University of Bristol; however, due to COVID­19 travel restrictions, the test has been postponed to November 2021. In or­der to supplement the work and data directly required for the test, computational fluid dynamics (CFD) investigations were performed in free air and in wind tunnel condi­tions, both with and without support interference, at a Reynolds number of 7E+05. The simulations utilized an incompressible Reynolds-­Averaged­-Navier.­Stokes equa­tion accompanied with k − ω SST for turbulent modelling. Corrections factors were obtained to compensate for wall interference, and results indicate a satisfactory agree­ment between free ­air and wind­ tunnel corrected data for wall interference. The sup­ port structure interferes with the aerodynamic loads produced by the model. Lift and drag decrease, and pitching moment increases compared to WT without support structure condition. / Denna studie utfördes för att undersöka aerodynamiska egenskaper hos det nedskalade Green Raven MK18­flygplanet för 37.5%, för att utvärdera gränskorrigeringsmetoden och för att undersöka stödinterferens. Ett vindtunneltest planerades ursprungligen i juni 2021 vid en stor­låghastighets vindtunnel vid University of Bristol. Men på grund av resebegränsningar för covid­19 har testet skjutits upp till november 2021. För att komplettera det arbete och de data som direkt krävs för testet, utfördes CFD under­ sökningar (Computational Fluid Dynamics) i fri luft och i vindtunnelförhållanden, både med och utan supportinterferens, med ett Reynolds­tal på 7E+05. Simuleringarna använde en inkompressibel Reynolds­Averaged­Navier­Stokes­ekvation tillsammans med k − ω SST för turbulent modellering. Korrigeringsfaktorer erhölls för att kom­ pensera för väggstörningar, och resultaten tyder på en tillfredsställande överensstäm­ melse mellan frilufts­ och vindtunnelkorrigerade data för väggstörningar. Stödstruk­ turen stör de aerodynamiska belastningar som modellen producerar. Lyft och drag minskar och stigningsmomentet ökar jämfört med WT utan stödstruktur.
473

A Density-Matrix Renormalization Group Study of Quantum Spin Models with Ring Exchange

Chan, Alexander 10 1900 (has links)
<p>In this thesis we discuss in detail the density-matrix renormalization group (DMRG) for simulating low-energy properties of quantum spin models. We implement an original DMRG routine on the S=1/2 antiferromagnetic Heisenberg chain and benchmark its efficiency against exact results (energies, correlation functions, etc.) as well as conformal field-theoretical calculations due to finite-size scaling (ground-state energy and spin gap logarithmic corrections). Moreover, we apply the DMRG to a two-leg square ladder system, where in addition to bilinear exchange terms, we also consider an additional cyclic four-spin ring-exchange. The transposition of four spins gives rise to biquadratic exchange terms which are non-trivial to implement in the DMRG. Intermediate results of the ring-exchange are presented along with the difficulties presently encountered.</p> / Master of Science (MSc)
474

Quantitative, non-destructive estimates of forest coarse root biomass using 3-D ground-penetrating radar (GPR)

Molon, Michelle M. 10 1900 (has links)
<p>We evaluated 3-D imaging of coarse root structure and biomass using ground-penetrating radar (GPR). GPR surveys were conducted in a white pine forest in southern Ontario, Canada. GPR profiles were obtained across two test plots (6 and 17 m<sup>2</sup> area), using 1-GHz GPR and a MEMS (micro-electro-mechanical systems) accelerometer. Test plot surveys evaluated the effects of micro-topography, soil moisture content, and root diameter and spacing. In addition, with the aid of the outcome of the control test plots two other plots (25 and 400 m<sup>2 </sup>area) were surveyed with varying line sample spacing to investigate the restraints on resolution brought about by line sampling density.</p> <p>Accounting for antenna tilt is necessary to determine an accurate and more precise position of root mass. The antenna tilt was >45<sup>o</sup> pitch, >28<sup>o</sup> roll and up to 10<sup>o</sup> yaw due to surface micro-topography of the forest floor. Vector 3-D imaging enhanced the diffraction amplitude (15.5% increase) and centralized the position of the root. Radial surveys provided root continuity and produced better root imaging.</p> <p>GPR largely underestimates coarse root biomass when a line spacing of 25 cm is used. However similar results are found with smaller line spacing (12.5 cm). A maximum line spacing of 10 cm provided continuous root structure and differentiation of roots spaced 10 cm apart and greater. A sampling line spacing of 5 cm and an inline sampling interval of 0.5 cm in low soil moisture conditions provided the detection of roots that were a minimum of 1.4 cm in diameter.</p> / Master of Science (MSc)
475

A model for implementation of restorative justice in the South African correctional system

Plaatjies, Minette Feona 30 June 2008 (has links)
This report is the culmination of literature study and semi-structured interviews which assisted in developing a Model for Implementation of Restorative Justice in the South African Correctional System. The study explores the use of Restorative Justice as part of rehabilitation in a prison setting. Literature focuses mainly on Restorative Justice as part of diversion, in cases of first offenders and less serious offences. Restorative Justice with sentenced offenders has been gaining momentum, though. Diversity in terms of language, cultural and religious practice as well as social background, should be considered as it affects the decision to enter into a Restorative Justice process. Restorative Justice with sentenced offenders is challenging and in the main a largely unsupported field. The study draws on experience from other countries, while at the same time advocate for uniquely South African practice. The involvement of the most important role players, namely victim, offender and the community is emphasized. Attitude and insufficient training seem to be some of the challenges for the implementation of Restorative Justice. Successes are reported in the few sites where Restorative Justice is implemented in the Correctional System, but a change of mindset, of being open to possibilities other than lock-up and punish in the entire Criminal Justice System is needed. Restorative Justice in the Correctional System seems to have been approached as yet another new programme, and not as a paradigm shift for the entire Criminal Justice System. Dealing with conflict in a restorative way should be at the front end of the chain, with young children whose behaviour can be directed, as changing behaviour of adults proves to be difficult. Repentance and forgiveness in different cultures and spiritual backgrounds are some of the issues that are grappled with, although forgiveness is nowhere indicated as a requirement for a successful Restorative Justice process. Voluntary participation is required from victims and offenders with support from communities. It remains a deeply spiritual and individual journey for those who choose to turn away from anger, fear and hatred, and start the process of personal healing and restoration. Restorative Justice with sentenced offenders can assist in dealing with the aftermath of crime. / Penology / D. Litt. et Phil. (Penology)
476

The impact of prison reform on the inmate population of Swaziland

Bruyns, Hennie, 1959- 11 1900 (has links)
The purpose of this study was to contextualise the Swaziland correctional services environment and inmate population, analysing how best to respond to the needs of the organisation and providing strategies that can have an impact on crime and recidivism. Offenders in Swaziland are incarcerated because alternatives to imprisonment or the resources necessary to make a visible impact on the inmate population are not provided. There is also very little scientific information available on the profiles of inmates to determine who really needs to be incarcerated, who could be incarcerated for a shorter time and who could be taken care of in the community. In addition to the above, Swaziland correctional services finds itself in a predicament where it has to provide concrete evidence that it is effective and adding value to the social and economic reconstruction of the country. This implies the frequent assessment of the organisation's performance to ensure the continuous delivery of cost-effective, innovative and high quality correctional services. In an attempt to understand the breadth of the problems faced by Swaziland correctional services, this thesis sets out to assess the environment in which Swaziland correctional services operates and to suggest mechanisms which can be used to rehabilitate and reduce the inmate population in order to add value and sustain the delivery of an effective correctional service. This study would seem to be of value not only to correctional practitioners, but also to the police and judiciary in that they will have a better understanding of dilemmas faced by Swaziland correctional services. This will assist the police and judiciary to take more informed decisions with regard to effective law enforcement, detention of awaiting-trials and sentencing practices. With Swaziland and other African countries embarking on a new route in corrections, the academic world can also play a major role in enlightening reform in legislation, policies and practices. / Penology / D.Litt. et Phil. (Penology)
477

The role of correctional supervision in curbing overpopulation in prisons

Visser, Johannes Gresse 10 1900 (has links)
The aim of this dissertation is to place the phenomenon of the overpopulation of South African prisons in perspective and to rectify the current situation in search of possible solutions. Since 1981, when this phenomenon reached unmanageable proportions, government has made numerous amnesties. This was only a short-term alleviation of the problem due to the high levels of recidivism. Correctional supervision as a sentence option was advocated by both the Lansdowne and Viljoen Commissions, enacted during 1986 and finally implemented during 1991. Initial expectations soon became blurred by factors such as insufficient development programmes and specialised personnel, enormous caseloads and the exclusion of supervision cases from development programmes. This study endeavours to analyse the current application of correctional supervision to determine the stumbling blocks and to create a foundation for new perspectives and possible solutions. / Penology / M.A. (Penology)
478

The motherhood penalty : exploration mothering experience as a pathway to crime for women incarcerated in the Johannesburg Female Correctional Centre

Parry, Bianca 25 September 2018 (has links)
Text in English, abstract in English, Zulu and Afrikaans / Globally there has been a rise in the population of incarcerated women over recent decades. Yet, despite this increase, female offenders only represent about 5% of the total incarcerated population. South Africa is no different – female offenders on average total less than 3% of the incarcerated population in South Africa, one of the ten largest correctional systems in the world. This small representation of women in the correctional system often leads to the interpretation that their pathways to offending and experiences of incarceration are the same as those of male offenders, delegitimising any role that gender may play in offending behaviour. The research topic of this doctoral study aims to investigate whether these women’s symbolic or pragmatic status as mothers motivated their crimes and how this occurrence may argue that the socioeconomic challenges faced by these women play a role in their criminalisation. By utilising a feminist pathways research approach, the unlawful actions of seventeen women incarcerated in the Johannesburg Female Correctional Centre is contextualised and reveals conduits to women’s incarceration that primarily involve victimisation and socially constructed “gendered vulnerabilities” that are indissolubly interconnected with poverty and oppression. As seen through their life history narratives, this confluence of factors, coupled with fulfilling the dual roles of provider and caregiver as a mother, contribute to their pathway to offending. Ultimately the research allows for a gender-sensitive analysis of the unique challenges incarcerated women in South Africa face, and the role agency and patriarchy has played in their pathways taken. / Isihloko: Inhlawulo yokuba ngumama – ukuhlolisisa izimo zokuba ngomama okudlula kuzo abantu besifazane baseNingizimu Afrika ababoshiwe njengento ewumzila obaholela ekwephuleni umthetho. Isishayelelo ngokufingqiwe: Emhlabeni jikelele, kulawa mashuminyaka asanda kudlula sandile isibalo sabesifazane ababoshiwe. Yize kunalokho kwenyuka kwesibalo, abesifazane abasuke bephule umthetho bayingxenye ethi ayibe ngama-5% enani selilonke labantu ababoshiwe. NeNingizimu Afrika nayo akwehlukile kuyo, kubantu ababoshiwe lapha eNingizimu Afrika abesifazane balinganiselwa kuma-2.2% kuphela esamba sesisonke sabantu ababoshiwe, kanti futhi iNingizimu Afrika iyingxenye yalezo eziyishumi okuyizona ezinkulu kunazo zonke emhlabeni kwezokuqondisa izigwegwe. Lesi sibalo esincane sabesifazane abasezindaweni zokuhlumelelisa izimilo sivamise ukuhunyushwa kuthiwe leyo mizila yempilo ebaholela ekuphuleni umthetho kanye nezimo abadlula kuzona ngenkathi beboshiwe iyefana neyabesilisa abasuke bephule umthetho, ngalokho bese lingashaywa ndiva noma iliphi iqhaza lezobulili kulezo zenzo zokwephula umthetho. Okokuqala, lesi sihloko esihlongoziwe salolu cwaningo lweziqu zobudokotela sihlose ukucacisa ubunjalo bezimpawu zomuntu ngamunye futhi nalezo zinto ezihambelana ngokufanayo kubantu besifazane abasezindaweni zokuhlumelelisa izimilo eNingizimu Afrika. Okwesibili, kuhloswe ukucubungulisisa ukuthi ngabe lesi simo abazithola bekusona njengabantu abangomama akusona yini noma cha esadala ukuthi benze lawo macala, kanye nokuthi ekwenzekeni kwalokho, zizathu zini ezingaba khona zokuthi izinselelo kwezenhlalo nezomnotho ezibhekana nalaba bantu besifazane yizona eziba negalelo lokuthi bazithole sebengene kwizenzo zokwephula umthetho. Ngokusebenzisa indlela yokucwaninga evuna amalungelo nesimo sabesifazane, lolu cwaningo luhlose ukuthi ekugcineni kube nokuziqondisisa izinto ezenzeka kumuntu ngayedwana kanye nakumphakathi, okuyizona zinto ezidala ukuthi laba bantu besifazane bagcine sebeqe inqubo elandelwayo emphakathini. Ngokusebenzisa ingxoxo-mibuzo ecubungula umlando wempilo, ngalokho kubhekisiswa ukungena ezenzweni zokwephula umthetho kwabantu besifazane abayishumi nesikhombisa ababoshwe eSikhungweni Sabesifazane Sokuhlumelelisa Izimilo saseJohannesburg, ngokubheka ubunjalo besimo okwenzeka ngaphansi kwaso lokho kwephulwa komthetho. Lokhu kuveza ithuba lokuhlaziya ngokusebenzisa indlela ebhekela ezobulili mayelana nezinselelo ezingefaniswe nalutho ababhekana nazo abesifazane ababoshiwe eNingizimu Afrika, futhi ngalokho-ke bese kunikwa laba bantu besifazane ulwazi lokuguqula izindlela abasuke sebehamba ngazo. Izindikimba ezingumongo: UMnyango Wezokuhlumelelisa Izimilo, iNingizimu Afrika, owesifazane ophule umthetho, isifundo sezobugebengu eseibhekelela ezobulili, izimo ophile kuzona, imizila eholela ekwephuleni umthetho, ingxoxomibuzo mayelana nomlando ngempilo, isayikholoji, ezobulili, indaba yezinto ezihambelanayo. / Titel: Die straf van moederskap – verkenning van die moederskapervaring van vroue in gevangeskap in Suid-Afrika se ervaring as 'n pad tot midaad Abstrak: Daar was die afgelope dekades wêreldwyd 'n toename in die populasie van vroue in gevangeskap. Ten spyte van die toename, verteenwoordig vroue slegs omtrent 5% van die totale populasie in gevangeskap. Suid-Afrika is in geen opsig anders nie – vroue-oortreders verteenwoordig gemiddeld slegs 2.2% van die populasie in gevangeskap in Suid-Afrika met een van die tien grootste korrektiewe stelsels in die wêreld. Hierdie klein verteenwoordiging van vroue in die korrektiewe stelsel lei dikwels tot die verklaring dat hul pad na oortreding en ervaring van gevangeskap dieselfde as dié van manlike oortreders is, wat enige rol wat gender ook al mag speel ongegrond maak. Die onderwerp van die navorsing wat vir die doktorale studie voorgestel is, is eerstens daarop gemik om die individuele kenmerke en dit wat vroue in gevangeskap in Suid-Afrika se korrektiewe fasiliteite gemeen het, uit te stip. Dit is tweedens daarop gemik om te verken of hierdie vrouens se simboliese of pragmatiese status as moeders hul misdade motiveer het, en hoe daar as gevolg van die voorkoms geredeneer kan word dat die sosioekonomiese uitdagings wat deur die vroue in die gesig gestaar word 'n rol in kriminalisering speel. Deur die feministiese benadering van navorsing te volg, word daar met dié studie daarop gemik om uiteindelik 'n begrip te vorm van individuele en sosiale prosesse wat daartoe lei dat hierdie vroue sosiale norme oortree. Deur lewensgeskiedenisonderhoude te gebruik, word die kriminalisering van die handelinge van 17 vroue in gevangeskap in Johannessburg se korrektiewe sentrum vir vroue gekontektualiseer. Dit bied geleentheid vir 'n gendersentitiewe ontleding van die unieke uitdagings wat vroue in gevangeskap in Suid-Afrika in die gesig staar, en voorsien vroue van die kennis om alternatiewe paaie te volg. Kerntemas: Departmenent van Korrektiewe Dienste, Suid-Afrika, vroueoortreder, feministiese kriminologie, geleefde ervaring, pad na misdaad, lewensgeskiedenisonderhoude, sielkunde, gender, narratief. / Psychology / D. Phil (Psychology)
479

Recherche d'un boson de Higgs chargé avec le détecteur ATLAS : de la théorie à l'expérience / Search for a charged Higgs boson with the ATLAS detector : from theory to experiment

Weydert, Carole 05 September 2011 (has links)
Cette thèse se situe à mi-chemin entre la phénoménologie et la physique de particules expérimentale. Dans la première partie, nous décrivons un calcul de section efficace à order supérieur en développement perturbatif, ainsi que son implementation dans un générateur d'événements Monte Carlo. Nous présentons les corrections au premier order en chromodynamique quantique pour la production de boson de Higgs chargé en association avec un quark top au LHC, en utilisant le formalisme de soustraction de Catani et Seymour. Notre code indépendant nous a permis de valider les résultats donnés par MC@NLO, et nous avons réalisé des études concernant diverses contributions aux erreurs systématiques dues à la simulation d'événements. L'implémention du processus a été réalisée pour le générateur POWHEG. En raison de la quantité de données insuffisante disponible fin 2010 (le détecteur ATLAS a accumulé 35 pb-1 de données de collisions proton-proton), le processus de production de Higgs chargé n'a pas pu être étudié et nous nous sommes tournés vers la caractérisation de bruits de fonds. Dans ce contexte, il s'avère que la production de boson W en association avec un quark top est importante à connaître. Dans la seconde partie de cette thèse, nous mettons en place une analyse spécifique au canal Wt semileptonique, en incluant les effets statistiques et systématiques, pour lesquels nous nous concentrons plus particulièrement sur l'effet dû aux différentes paramétrisations du contenu des protons. Le processus Wt étant inobservable au Tévatron, nous pouvons pour la première fois donner une limite à la setion efficace de production. / This thesis is intended as a bridge between the two highly specialised domains of phenomenology and experimental particle physics. The first part describes in detail a higher order cross section calculation and implementation into a Monte Carlo event generator. We present the calculation of the next-to-leading order (NLO) quantum chromodynamic corrections for charged Higgs boson production in association with a top quark at the LHC, using the Catani-Seymour dipole subtraction method. Building an independent NLO code enabled us to cross-check the implemented version of MC@NLO, and a few studies have been made which focus on different contributions to the theoretical uncertainty attached to the NLO calculation. The actual implementation was performed for another NLO event generator, POWHEG. Considering the small production cross section of charged Higgs production associated with a top quark, an analysis of this channel using the 35 pb-1 of data collected with the ATLAS detector in 2010 from the proton-proton collisions of the LHC, makes no sense, and we switch to a very similar SM channel, namely Wt production. In the second part, we set-up a dedicated analysis for semileptonic Wt and focus on the evaluation of the PDF systematic uncertainty, following the PDF4LHC recommendation. The electroweak single top production cross section at the Tevatron is so low that it hasn't been observed until today, so we are able to set the world's first limit on its production cross section and include the most important systematic uncertainties in our analysis.
480

Photon and π⁰ electroproduction at Jefferson Laboratory-Hall A / Electroproduction de photon et de π⁰ au laboratoire Jefferson-Hall A

Defurne, Maxime 25 June 2015 (has links)
Définies aux milieux des années 1990, les distributions de partons généralisées (GPDs) représentent un degré d'information supérieur aux facteurs de formes et fonctions de distributions de partons: en effet elles conservent la corrélation entre fraction d'impulsion longitudinale et position transverse des partons dans le nucléon. Par conséquent les GPDs permettent d'accéder à la distributions des partons dans le plan transverse en fonction de leur impulsion longitudinale. De plus il est possible de calculer le moment orbital angulaire total des quarks par le biais de la règle de somme de Ji. Nous accédons expérimentalement aux GPDs par des observables liées à des processus exclusifs (asymmétries, sections efficaces,...). Un programme expérimental mondial a commencé au début des années 2000 afin de caractériser les GPDs. Ce document décrit l'analyse de données de deux expériences réalisées en 2004 et 2010 dans le Hall A au laboratoire Jefferson en Virginie. A partir des données de 2004, nous avons extrait les sections efficaces d'électroproduction de photon polarisées et non polarisées. Une étude approfondie des erreurs systématiques a significativement améliorée la qualité des résultats. Ces derniers semblent indiquer la nécessité de prendre en compte les corrections de cible massive et de transfert d'impulsion fini jusqu'au twist-4. A partir des données 2010, nous avons réalisé pour la première fois une séparation des réponses longitudinale et transverse de l'électroproduction de pions neutres. Les résultats ont confirmé l'hypothèse d'une contribution transverse significative bien qu'étant de twist supérieur par rapport à la contribution longitudinale. Ces données de haute précision, que ce soit pour le photon ou le pion neutre, valident le formalisme des GPDs et permettront d'affiner les modèles afin de réaliser la tomographie 3D du nucléon. / Defined in the mid 90's, the generelized parton distributions (GPDs) represent a higher level of information than the form factors and parton distribution fuctions: indeed they encapsulate the correlation between the fraction of longitudinal momentum and the transverse position of the partons inside the nucleon. Consequently we can access the distribution of the partons in the transverse plane according to their longitudinal momentum. Moreover we can derive the total angular orbital momentum of quarks thanks to Ji's sum rule. Experimentally, we access the GPDs through the study of deep exclusive processes (asymmetries, cross sections,...). A worldwide experimental program started in the early 2000's. This thesis presents two data analyses carried on two data sets from experiments running at Jefferson laboratory - Hall A in 2004 and 2010. From the 2004 data set, we have extracted unpolarized and polarized photon electroproduction cross sections. A careful study of the systematic errors has greatly improved the quality of the results. They seem to indicate the necessity to take into account target-mass and finite-t corrections up to twist-4. From the 2010 data set, we have performed the first separation of the longitudinal and transverse responses of neutral pion electroproduction. The results confirm the assumption of a significant contribution of the transverse response although kinematically suppressed with respect to the longitudinal response. These results of high precision validate the GPD approach and will allow to improve the existing models.

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