Dissertations / Theses on the topic 'NUCLEUS SOFTWARE'
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Li, Xiang. "The Use of Software Faults in Software Reliability Assessment and Software Mutation Testing." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1434394783.
Full textZhang, Yi 1973. "Reliability quantification of nuclear safety-related software." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28367.
Full textPage 242 blank.
Includes bibliographical references (p. 238-241).
The objective of this study is to improve quality and reliability of safety-critical software in the nuclear industry. It is accomplished by focusing on the following two areas: Formulation of a standard extensive integrated software testing strategy for safety-critical software, and Development of systematic test-based statistical software reliability quantification methodologies. The first step to improving the overall performance of software is to develop a comprehensive testing strategy, the gray box testing method. It has incorporated favorable aspects of white box and black box testing techniques. The safety-critical features of the software and feasibility of the methodology are the key drivers in determining the architecture for the testing strategy. Monte Carlo technique is applied to randomly sample inputs based on the probability density function derived from the specification of the given software. Software flowpaths accessed during testing are identified and recorded. Complete nodal coverage testing is achieved by automatic coverage checking. It is guaranteed that the most popular flowpaths of the software are tested.
The second part of the methodology is the quantification of software performance. Two Bayesian based white box reliability estimation methodologies, nodal coverage- based and flowpath coverage-based, are developed. The number of detected errors and the failure-free operations, the objective and subjective knowledge of the given software, and the testing and software structure information are systematically incorporated into both reliability estimation approaches. The concept of two error groups in terms of testability is initiated to better capture reliability features of the given software. The reliability of the tested flowpaths of the software and that of the untested flowpaths can be updated at any point during testing. Overall software reliability is calculated as a weighted average of the tested and untested parts of the software, with the probability of being visited upon next execution as the weight of each part. All of the designed testing and reliability estimation strategies are successfully implemented and automated via various software tools and demonstrated on a typical safety-critical software application.
by Yi Zhang.
Ph.D.
Horng, Tze-Chieh 1964. "MIDAS : minor incident decision analysis software." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/16643.
Full textIncludes bibliographical references (p. 59-60).
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
MIDAS is the minor incident decision analysis software that acts as an advisory tool for plant decision makers and operators to analyze the available decision alternatives for resolving minor incidents. The minor incidents dealt with in this thesis include non- safety related component failure, equipment maintenance, inspection or testing. MIDAS implements the risk-informed decision analysis methodology that uses multi- attribute utility theory (MAUT) and formal decision-making models that was developed for nuclear power plants. MIDAS integrates the theory, practical models and the graphical user interfaces for analysts to quickly obtain the insight regarding the performance of decision options and driving factors. To be able to deal with the inherent diversity of scenarios and decision options, a well-defined option models and modular calculation structure were constructed in MIDAS. In addition, MIDAS provides the functions of performing sensitivity and uncertainty analyses to take into account the inherent model and parameter uncertainties in decision option evaluation. Two case studies are performed to demonstrate the application of MIDAS in nuclear power plant risk-informed incident management. The insight obtained from the analysis results of case studies reveals that for nuclear power plant incident management, risk usually is not the most important concern. Cost and external attention are usually the dominant deciding factors in decision-making. However, in fact, the safety performance of each option is reflected in terms of the cost and external attention.
by Tze-Chieh Horng.
S.M.
Arno, Matthew G. (Matthew Gordon). "Verification and validation of safety related software." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/33517.
Full textLunglhofer, Jon R. (Jon Richard). "Complete safety software testing : a formal method." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/88311.
Full textChen, Xinhui 1996. "Development of a graphical approach to software requirements analysis." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/50421.
Full textPoorman, Kenneth E. (Kenneth Earl) 1967. "On the complete testing of simple safety-related software." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/36439.
Full textBydell, Linn. "Evaluation of the thermal-hydraulic software GOTHIC for nuclear safety analyses." Thesis, Uppsala universitet, Tillämpad kärnfysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-202808.
Full textLoza, Peñaran Miguel Angel. "Control dinámico de un reactor nuclear PWR utilizando software libre (SCICOS)." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2009. https://hdl.handle.net/20.500.12672/15122.
Full textTrabajo de suficiencia profesional
Veerasamy, Saravanan. "Valdiation of BaBar tracking software using lambda hyperon." Thesis, University of Iowa, 2007. http://ir.uiowa.edu/etd/141.
Full textBarroso, Adelanir Antonio. "DOC BASE NUCLEAR 1.01: software de gestão de documentos em Serviços de Medicina Nuclear Juiz de Fora." Universidade Federal de Juiz de Fora (UFJF), 2017. https://repositorio.ufjf.br/jspui/handle/ufjf/4958.
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O software de gestão de documentos em Serviços de Medicina Nuclear (SMN), denominado DOC BASE NUCLEAR 1.01, funciona via local e por acesso remoto (via web), com o objetivo principal de arquivamento eletrônico e controle da documentação exigida pelos órgãos reguladores brasileiros, com ênfase especial para Agência Nacional de Vigilância Sanitária (ANVISA), Comissão Nacional de Energia Nuclear (CNEN) e Ministério do Trabalho e Previdência Social (MTPS). O software possibilita a criação de checklist da base documental exigida, com definições de origem e validade dos documentos. O processo inicial teve origem na análise de pastas físicas que foram criadas e indexadas, com documentos impressos que serviram de base para orientar o modelo do software, desenvolvido em linguagem Visual Basic, plataforma .NET, com banco de dados SQL SERVER, além da linguagem ASP NET. O programa foi concebido de forma a permitir a inclusão de cópias digitalizadas da legislação específica, além de documentos adicionais e suas especificações, com orientações e alertas para a permanente manutenção da base documental em conformidade com a legislação vigente. Na fase tardia do projeto as aplicações foram expandidas permitindo a inclusão de documentos advindos de diferentes origens, incluindo aqueles internos do SMN facilitando a centralização, o arquivamento eletrônico e a controladoria dos mesmos. É possível, ainda, elaborar uma lista digital de exigências e incluir novos documentos, respeitando seus algoritmos e pré-requisitos para obtenção dos mesmos. A caixa de busca por denominações facilita a localização e o acesso aos documentos que, selecionados, são agrupados em local específico, sob o nome genérico de “carrinho de documentos” e, ao término da seleção, são finalizados (fechados) com a criação de pasta personalizada para o uso a que se destine. O software foi submetido a teste operacional em SMN, com boa resposta aos objetivos propostos, fácil execução e boa interação com usuário.
The present product DOC BASE NUCLEAR 1.01 is a document management software in Nuclear Medicine Services (SMN), which works via local and remote access (web) with the main objective of electronically filing and controlling the documentation required by the Brazilian regulatory agencies, with special emphasis on the National Agency of Sanitary Surveillance (ANVISA), the National Nuclear Energy Commission (CNEN) and the Ministry of Labor and Social Security (MTPS). The product enables the creation of a checklist of the required documentary base, with definitions of origin and validity of the documents. This initial process originated from the analysis of physical folders that were created and indexed, with printed documents that served as a basis to guide the design of the software, developed in Visual Basic language .NET platform (DOT NET), with SQL SERVER database and ASP NET language.The software has been created to allow the inclusion of digitised copies of specific legislation, as well as additional documents and their specifications, with guidelines and alerts/notifications for the permanent maintenance of the documentary base, in accordance with current legislation. At a later stage of the project, the possible applications of the software were expanded and allowed for the inclusion of different sources, such as internal documents from SMN, facilitating their centralisation, electronic archiving and control. The software generates a digital list of requirements and the inclusion of new documents, maintaining the algorithms of the requirements and prerequisites for obtaining them. One can find a search box for denominations in order to locate and access to documents that are selected as a group under the generic name of “documents cart" and that, at the end of the selection, are finalized (closed) with the new custom folder for your intended use. The software has been tested by Nuclear Medicine Services, with a good responseregarding its objectives, usability and good user interaction.
Gnau, Andrew Patrick. "Evaluation of the regulatory review process for the software development life cycle." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/43344.
Full textOuyang, Meng. "An integrated formal approach for developing reliable software of safety-critical system." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/11285.
Full textOliver, William A. "Monitoring Software and Charged Particle Identification for the CLAS12 Detector." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/6031.
Full textSui, Yu 1973. "Reliability improvement and assessment of safety critical software." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47688.
Full textIncludes bibliographical references (leaves 95-101).
In order to allow the introduction of safety-related Digital Instrumentation and Control (DI&C) systems in nuclear power plants, the software used by the systems must be demonstrated to be highly reliable. The most widely used and most powerful method for ensuring high software quality and reliability is testing. An integrated methodology is developed in this thesis for reliability assessment and improvement of safety critical software through testing. The methodology is based upon input domain-based reliability modeling and structural testing method. The purpose of the methodology is twofold: Firstly it can be used to control the testing process. The methodology provides path selection criteria and stopping criteria for the testing process with the aim to achieve maximum reliability improvement using available testing resources. Secondly, it can be used to assess and quantify the reliability of the software after the testing process. The methodology provides a systematic mechanism to quantify the reliability and estimate uncertainty of the software after testing.
by Yu Sui.
S.M.
D'Angelo, Elizabeth Marcela Alonso. "Software requirements for a nuclear plant operator advisor, the SIPO case study." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq29237.pdf.
Full textGomes, António João Matos. "Ressonância magnética nuclear com recurso a um transreceptor rádio controlado por software." Master's thesis, Faculdade de Ciências e Tecnologia, 2014. http://hdl.handle.net/10362/13008.
Full textA investigação realizada no desenvolvimento de Software-Defined Radars (SDR) tende sempre para a combinação de hardware do Universal Software Radio Peripheral (USRP) com o software Gnu Radio, desenvolvido especialmente para as comunicações rádio. Existem diversos estudos em que demonstram que estas duas ferramentas podem ser usadas em conjunto para a implementação de um sistema SDR de baixo custo e bastante versátil. Com o desenvolvimento da tecnologia, o USRP tem vindo a aumentar o seu potencial podendo ser aplicado a diversas tecnologias. Com alguns conhecimentos do funcionamento de uma Ressonância Magnética Nuclear (NMR) é possível adaptar-se o USRP num equipamento capaz de efetuar uma NMR. O trabalho realizado nesta dissertação consiste na implementação de um sistema de Ressonância Magnética Nuclear (Nuclear Magnetic Resonance – NMR) utilizando um sistema de Software-Defined Radio (SDR). Foi construído um diagrama de blocos que enviasse um sinal semelhante ao sinal enviado numa NMR, foi criado um sinal de resposta, de forma a simular a NMR sendo de seguida analisado como se de um sinal obtido se tratasse. A análise do sinal consiste na obtenção do máximo e máximos relativos, aproximando-os a uma expressão inversamente exponencial.
Johnson, Stephen Philip. "Mapping numerical software onto distributed memory parallel systems." Thesis, University of Greenwich, 1992. http://gala.gre.ac.uk/8676/.
Full textShelbaya, Olivier. "Laser spectroscopy of rare Rubidium isotopes and development of data analysis software at TRIUMF." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=110585.
Full textTRIUMF, le laboratoire national canadien pour la recherche en physique nucléaire et en physique des particules, a entrepris l'étude de la forme ainsi que la structure d'isotopes rares et hautement instables. En employant la méthode de la spectroscopie colinéaire utilisant des faisceaux atomiques à haute vitesse, le spin nucléaire ainsi que les moments nucléaires et le rayon de charge peuvent êtres determinés. Le groupe de spectroscopie au laser de TRIUMF a usé de cette méthode pour observer les propriétés fondamentales des isotopes du rubidium, famille isotopique pour laquelle les isotopes 76 Rb à 98 Rb ont déjà été étudiés au laboratoire ISOLDE par Thibault et al. En premier lieu, les isotopes déficitaires en neutrons 74 Rb - 76 Rb ont étés observés, permettant l'étude du rayon de charge nucléaire dans le régime menant à la ligne de limite de stabilité. Du côté riche en neutrons, un programme est en cours pour entreprendre l'étude des isotopes 98 Rb - 100 Rb, ces derniers étant hautement déformés. Des mesures péliminaires sur le spectre hyperfin de l'isotope 92 Rb, au spin nucleaire de 0, ont été réalisées, avec un rendement ionique de l'ordre de 10^7 par seconde. Ceci représente la première fois que des rubidiums lourds ont été produits et étudiés spectroscopiquement à TRIUMF. Ces nouvelles mesures ont été prises grâce à un nouveau système basé sur le principe d'un MCS, permettant l'augmentation de la capacité ainsi que de la qualité de l'acquisition de données.
Valastyán, Iván. "Software Solutions for Nuclear Imaging Systems in Cardiology, Small Animal Research and Education." Doctoral thesis, KTH, Medicinsk teknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-12069.
Full textQC20100721
Gottardo, Marco. "New hardware and software technologies for real-time control in nuclear fusion experiments." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3422811.
Full textLe attuali machine per lo studio della fusione nucleare producono un grande ammontare di dati. L’accuratezza di questi, la loro densità allinterno di stretti intervalli temporali può determinare la efficacia dei sistemi di controllo in tempo reale che dovranno essere installati nei futuri reattori. Ci siamo posti l’obiettivo di sviluppare e valutare un sistema di acquisizione dati ad alta velocità basato sulla ultima generazione di FPGA. In questa tesi abbiamo impiegato gli ultimi prodotti rilasciati da Xilinx per produrre un sistema in grado di acquisire segnali in streaming provenienti da sonde magnetiche generiche, installate in RFP e Tokamak. La famiglia 7000 Zynq è oggi lo stato dell’arte dei sistemi SoC integrando una potente sezione FPGA con un sistema multicore ARM Cortex A9 di ultima generazione. Di fondamentale importanza sarà la drastica riduzione dei cablaggi tra la macchina e l’apparato di concentrazione dei dati acquisiti con l’obiettivo di eliminare il rumore indotto e ridurre drasticamente i costi di assemblaggio. La configurazione dei campi magnetici in RFX è caratterizzata da veloci variazioni nelle tre component di campo, nella durata dell’impulso, con rilevanti componenti non assial-simmetriche specialmente in direzione toroidale. Tipicamente lo spettro mostra dei modi superiori a n=15 in direzione toroidale pricipalmente con m=0 e m=1 in direzione poloidale. Come conseguenza, i segnali alle sonde hanno un largo range dinamico, superiore a 60 dB e estendono lo spettro di frequenza oltre svariati decine di kHz. Quindi, molte sonde sono richieste per identificare correttamente la complessa struttura spaziale della Colonna di plasma. Per ridurre l’effetto schermo, le sonde devono essere installate dentro la shell stabilizzatrice. Le tre componenti del campo fuori dalla camera da vuoto possono essere molto differenti in ampiezza. Allo stesso tempo, una può raggiungere 0.8 T e un’altra può essere dell’ordine dei mT. Inoltre queste risultano essere molto veloci. Le sonde istallate devono garantire una incertezza minore di 1 mT per ricostruire correttamente il comportamento del plasma. Queste due specifiche sono particolarmente stringenti e richiedono una accurate calibrazione e allineamento dei sensori per minimizzare gli effetti spuri e il rilevamento di componenti indesiderate. Un ulteriore specifica di progetto per i sensori è dovuta alla massima temperatura della camera da vuoto che può raggiungere i 200 °C. I sistemi di acquisizione analogica devono mostrare un alto isolamento, velocità e risoluzione; ma soprattutto la qualità deve essere maggiore di qanto richiesto dal livello di rumore. Il rumore deve rimanere infatti sotto una soglia minima nello spettro di uscita. L’obiettivo principare della tesi è di verificare l’applicabilità del modulo ATCA MIMO ISOL nella parte alta e bassa dello spettro del segnale delle sonde magnetiche biassiali in modo da metterlo in grado di essere integrato nella nuova acquisizione FPGA e controllo in tempo reale per RFXmod.
Stenberg, Johan. "Software Tools for Design of Reagents for Multiplex Genetic Analyses." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6832.
Full textYayla, Ihsan. "Filter Design Software By Synthesis Method." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12610279/index.pdf.
Full textArgante, Erco. "CoCa a model for parallelization of high energy physics software /." Eindhoven : Eindhoven University of Technology, 1998. http://catalog.hathitrust.org/api/volumes/oclc/41892351.html.
Full textMedina, Calderón Richard. "Desarrollo de software para cálculo neutrónico en el reactor RP-10." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2004. https://hdl.handle.net/20.500.12672/3204.
Full textTesis
Llerena, Herrera Isbel. "An automated software for analysis of experimental data on decay heat from spent nuclear fuel." Thesis, Uppsala universitet, Tillämpad kärnfysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-188831.
Full text曾熙旻 and Hei-man Tsang. "Simulations and software developments for cosmic-ray and particle physics experiments in underground laboratories." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39557030.
Full textHan, Yunong. "Load-aware traffic control in software-defined enterprise Wireless Local Area Networks." Thesis, University of Essex, 2018. http://repository.essex.ac.uk/22379/.
Full textGruber, Liliane Dailei Almeida. "Mediação do professor no uso do software educativo cidade do átomo : abordagem dos temas energia nuclear e radioatividade no ensino médio." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/116495.
Full textBy considering that the use of information technology and pedagogical practices communication allied with an approach of nuclear subject it’s a relevant, challenging and yet not well developed theme, the present project aimed to create speculative space about the learning relationship and the role of the educator in a middle school context. To the development of this research were used a qualitative methodology. As data collecting instrument were used audio and video recordings, diary class annotations, textual productions of the analyzed subjects and navigation record files of the educational software ambient. Use of digital resources, mainly the educative software “Cidade do Átomo”, enabled the roleplaying game, whose objective is the approach of scientific and technologic polemic subjects, such as the nuclear energy production. In this exercise, the students played various roles on the same context, defending and debating their characters point of view. By the use of questions and discussion of the peer relationship with the technological resource, was possible to bespeak a beneficial interactive environment. This statement endorses the potentiality of the educative space, which resulted in a reinforcement of the teaching-learning process.
MILANESIO, DANIELE. "Development and Validation of a software for the Analysis of Antennas for Controlled Magnetically Confined Nuclear Fusion." Doctoral thesis, Politecnico di Torino, 2008. http://hdl.handle.net/11583/2498895.
Full textPossani, Rafael Guedes. "Re-engenharia do software SCMS para uma linguagem orientada a objetos (Java) para uso em construções de phantoms segmentados." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/85/85133/tde-04062012-152752/.
Full textRecent treatment planning systems depend strongly on CT images and the tendency is that the internal dosimetry procedures in nuclear medicine therapy be also based on images, such as magnetic resonance imaging (MRI) and computed tomography (CT), to extract anatomical and histological information, as well as, functional imaging or activities map as PET and SPECT. This information associated with a radiation transport simulation software is used to estimate internal dose in patients undergoing treatment in nuclear medicine. This work aims to re-engineer the software SCMS, which is an interface software between the Monte Carlo code MCNP, and the medical images, that carry information from the patient in treatment. In other words, the necessary information contained in the images are interpreted and presented in a specific format to the Monte Carlo MCNP code to perform the simulation of radiation transport. Therefore, the user does not need to understand the complex process of inputting data on MCNP, as the SCMS is responsible for automatically constructing anatomical data from the patient, as well as the radioactive source data. The SCMS was originally developed in Fortran-77. In this work it was rewritten in an object-oriented language (JAVA). New features and data options have also been incorporated into the software. Thus, the new software has a number of improvements, such as intuitive GUI and a menu for the selection of the energy spectra correspondent to a specific radioisotope stored in a XML data bank. The new version also supports new materials and the user can specify an image region of interest for the calculation of absorbed dose.
Tondin, José Egidio Marin. "Prospecção de implementação de ensino à distância para a disciplina de fundamentos de física nuclear na Pós- Graduação do Ipen utilizando infra - estrutura de software livre." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-20082009-184625/.
Full textIn modern society, the utilization of technological resources and of the internet are of fundamental importance in all areas and as such the educational activities have to follow this evolution. In this context, distance learning is a fundamental tool for educational development, being innovative and stimulating , offering a variety of resources that are complementary to the activities of the students. Also it is important to point out that distance learning can be brought to remote regions, of difficult access in many cases, so allowing a wide dissemination of knowledge and also implying in lower costs. The objective of this work is the prospection of the interest and viability of implantation of distance learning in the course on Fundamentals of Nuclear Physics at the graduate course of IPEN, using free software infra-structure , by means of a pilot project on distance learning. The work was developed in three phases. In the first phase, a questionnaire was applied to the students , with the aim of finding out about their profiles and interest in distance learning, before they had contact with the pilot project. In the second phase, other students were interviewed ,also with the objective of knowing their opinion about distance learning ,but after they had access to the pilot project. Finally,the professors of the graduate course of IPEN were consulted, also by means of a questionnaire, in order to know about their interest in the utilization of distance learning. The results obtained in the present work show that distance learning is a welcome pedagogical resource for students as well for teachers; these results will subsidize the future implementation of distance learning in the graduate course of IPEN.
Nascimento, Pedro Augusto do. "Desenvolvimento de softwares para aplicação em medicina nuclear : cálculo da blindagem PET/CT e otimização de dose para radiofármaco em PET/CT." reponame:Repositório Institucional da UnB, 2016. http://repositorio.unb.br/handle/10482/24632.
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A PET/CT (Positron Emission Tomography/ Computed Tomography) é uma técnica de aquisição de imagem, de alta resolução da anatomia e fisiologia humana, extremante eficiente no diagnóstico de tumores metabolicamente ativos. A proteção radiológica do PET/CT tem um desafio especial, pois a alta energia de 511 keV dos fótons provenientes da aniquilação de pares diferencia-se de outros exames de diagnósticos que utilizam radiações ionizantes. O cálculo dos requisitos de blindagem para radiação por emissão de pósitrons de em instalações PET/CT proposto em 2006 pela Task Grupo 108 (TG 108), da American Association of Physicists in Medicine (AAMP), pode ser uma tarefa complexa. Nesse trabalho apresentamos dois softwares em forma de Aplicativos (App) que visam contribuir com a Medicina Nuclear. O primeiro, denominado BlindPet, calcula as espessuras das barreiras empregadas na blindagem de instalações destinadas à prática PET/CT e o segundo App, o DosePet, calcula os volumes e doses a serem administradas em pacientes e os resíduos radiação na sala de preparação de PET/CT. Os softwares foram projetados utilizando a ferramenta Web MIT App Inventor2 para plataforma Android. Os aplicativos permitem avaliar a quantidade de radiação ainda existente nas instalações após as aplicações, aumentando a segurança e diminuindo as exposições, além de possibilitar maior eficiência no aproveitamento do radiofármaco.
The PET / CT (Positron Emission Tomography / Computed Tomography) is an image capture technique, high resolution of the human anatomy and physiology, extremely efficient in the diagnosis of metabolically active tumors. Radiological protection of the PET / CT has a special challenge because the high energy of 511 keV photons from the annihilation of pairs differs from other tests diagnostics using ionizing radiation. The calculation of shielding requirements for radiation positron emission of PET / CT facilities proposed in 2006 by the Task Group 108 (TG 108), prepared by the American Association of Physicists in Medicine (AAPM), can be a complex task. In this paper we present two software in the form of Application (App) designed to help in the nuclear medicine. The first, called BlindPet calculates the thicknesses of the shielding barriers used in the installations intended for PET / CT and second App, DosePet calculates the volumes and doses to be administered to patients and residues radiation in the PET/CT preparation room. The software has been designed using the Web Inventor2 MIT App tool for Android platform. The application allows evaluating the amount of radiation still existing in the premises after the applications, increasing security and reducing exposures, and enable greater efficiency in the use of the radiopharmaceutical.
Tsang, Hei-man. "Simulations and software developments for cosmic-ray and particle physics experiments in underground laboratories." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/HKUTO/record/B39557030.
Full textKütt, Moritz [Verfasser], Franz [Akademischer Betreuer] Fujara, and Alexander [Akademischer Betreuer] Glaser. "Simulation of Neutron Multiplicity Measurements using Geant4 - Open Source Software for Nuclear Arms Control / Moritz Kütt. Betreuer: Franz Fujara ; Alexander Glaser." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2016. http://d-nb.info/1112333177/34.
Full textBarbalace, Antonio. "Emerging Hardware Architectures and Advanced Open-Source Software Technologies for Real-Time Control and Data Acquisition in Quasi-Continuous Nuclear Fusion Experiments." Doctoral thesis, Università degli studi di Padova, 2011. http://hdl.handle.net/11577/3421603.
Full textLa ricerca sulla fusione nucleare oggigiorno é fortemente motivata dal continuo aumento della richiesta globale di energia a basso costo ed ecocompatibile. Per poter soddisfare i requisiti per la costruzione di impianti da fusione commerciali devono essere studiati nuovi sistemi per il controllo in tempo reale e l'acquisizione dati, che supportano esperimenti con plasma quasi-continui e scenari di plasmi non stabili. Questa tesi tratta delle soluzioni hardware e software per il controllo in tempo reale e l'acquisizione dati negli esperimenti fusionistici operanti in modalitá quasi continua. La tesi presenta un'indagine sulle schede per l'acquisizione e la generazione dati, sulla scelta dell'elaboratore, sui sistemi operativi in tempo reale e sui framework applicativi. Il lavoro incomincia con un'introduzione teorica sulla fusione termonucleare e alcuni dispositivi esperimentali per la fusione. In particolare due diversi esperimenti (RFX-mod e JET) vengono presentati per identificare diverse instabilitá presenti nel plasma che devono essere controllate in tempo reale, queste sono la stabilizzazione dei modi Magneto-Hydro dinamici (MHD) e la stabilizzazione verticale (VS). Segue una parte dedicata all'analisi delle diverse architetture di acquisizione dati realizzati in dispositivi commerciali. Quindi viene discusso come riallineare digitalmente, tramite interpolazione o filtri passa-tutto, dei segnali analogici acquisiti con campionamento non simultaneo utilizzando schede con diversi ingressi multiplexati su un unico convertitore. Vi é quindi una sezione dedicata al software libero dedicata in particolare ai sistemi operativi e ai framework applicativi con provata bassa latenza utilizzabili per il controllo in tempo reale e l'acqusizione dati. Linux, corredato delle sue real-time patches, dimostrata di essere un sistema operativo deterministico (real-time) se opportunamente configurato su sistemi multiprocessore utilizzando le tecniche di partizionamento e schermatura delle risorse. Diversi modelli computazionali e alcuni framework applicativi che li implementano vengono analizzati. MARTe tra EPICS e altri software per il controllo presenta la latenza piú bassa e il jitter piú contenuto. La tesi si conclude con il progetto di aggiornamento del sistema di controllo dei modi MHD dell'esperimento RFX-mod.
Hegarty, Declan. "FPGA-based architectures for next generation communications networks." Thesis, University of Glasgow, 2008. http://theses.gla.ac.uk/455/.
Full textMacIsaac, Liam J. "Modelling smart domestic energy systems." Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/4214/.
Full textHainline, Douglas Ray. "Validation of queries to a relational database." Thesis, University of Greenwich, 1986. http://gala.gre.ac.uk/8670/.
Full textAl-Gburi, Abeer. "Robustness analysis of nonlinear systems with feedback linearizing control." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/375170/.
Full textGrammatikopoulos, Panagiotis. "Computer simulation of dislocation interaction with radiation-induced obstacles in iron." Thesis, University of Liverpool, 2009. http://livrepository.liverpool.ac.uk/1218/.
Full textZhan, Yiyi. "PC-based visual simulation of high pressure arc plasma." Thesis, University of Liverpool, 2011. http://livrepository.liverpool.ac.uk/3433/.
Full textLeslie, Robert. "An evaluation of load sharing algorithms for heterogeneous distributed systems." Thesis, University of Greenwich, 1997. http://gala.gre.ac.uk/6224/.
Full textWang, Chunliang. "Computer Assisted Coronary CT Angiography Analysis : Disease-centered Software Development." Licentiate thesis, Linköping University, Linköping University, Radiology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-17783.
Full textThe substantial advances of coronary CTA have resulted in a boost of use of this new technique in the last several years, which brings a big challenge to radiologists by the increasing number of exams and the large amount of data for each patient. The main goal of this study was to develop a computer tool to facilitate coronary CTA analysis by combining knowledge of medicine and image processing.Firstly, a competing fuzzy connectedness tree algorithm was developed to segment the coronary arteries and extract centerlines for each branch. The new algorithm, which is an extension of the “virtual contrast injection” method, preserves the low density soft tissue around the coronary, which reduces the possibility of introducing false positive stenoses during segmentation.Secondly, this algorithm was implemented in open source software in which multiple visualization techniques were integrated into an intuitive user interface to facilitate user interaction and provide good over¬views of the processing results. Considerable efforts were put on optimizing the computa¬tional speed of the algorithm to meet the clinical requirements.Thirdly, an automatic seeding method, that can automatically remove rib cage and recognize the aortic root, was introduced into the interactive segmentation workflow to further minimize the requirement of user interactivity during post-processing. The automatic procedure is carried out right after the images are received, which saves users time after they open the data. Vessel enhance¬ment and quantitative 2D vessel contour analysis are also included in this new version of the software. In our preliminary experience, visually accurate segmentation results of major branches have been achieved in 74 cases (42 cases reported in paper II and 32 cases in paper III) using our software with limited user interaction. On 128 branches of 32 patients, the average overlap between the centerline created in our software and the manually created reference standard was 96.0%. The average distance between them was 0.38 mm, lower than the mean voxel size. The automatic procedure ran for 3-5 min as a single-thread application in the background. Interactive processing took 3 min in average with the latest version of software. In conclusion, the presented software provides fast and automatic coron¬ary artery segmentation and visualization. The accuracy of the centerline tracking was found to be acceptable when compared to manually created centerlines.
Maccormick, Marion. "The ALICE Project at the IPN, OrsayR&D and software developments 1996-2003." Habilitation à diriger des recherches, Université Paris Sud - Paris XI, 2007. http://tel.archives-ouvertes.fr/tel-00159807.
Full textTONDIN, JOSE E. M. "Prospeccao de implementacao de ensino a distancia para a disciplina de fundamentos de fisica nuclear na pos-graduacao do IPEN utilizando infra-estrutura de software livre." reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9392.
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Percival, Graham Keith. "Physical modelling meets machine learning : performing music with a virtual string ensemble." Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/4253/.
Full textZimmermann, Jürgen P. "Micromagnetic simulations of magnetic exchange spring systems." Thesis, University of Southampton, 2007. https://eprints.soton.ac.uk/65551/.
Full textGoutal, Pascale. "Jeux non-coopératifs finis appliqués à la sécurité nucléaire." Paris 6, 1997. http://www.theses.fr/1997PA066362.
Full textJung, Sung Uk. "On using gait to enhance face extraction for visual surveillance." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/340358/.
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