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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.
251

Sobre existência de soluções para equações diferenciais ordinárias envolvendo operadores não-lineares via Métodos de Shooting e Ponto fixo. / On the existence of solutions for ordinary differential equations involving nonlinear operators via Shooting Methods and Fixed Point.

MARINHO, Sheyla Silva. 24 July 2018 (has links)
Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-07-24T14:29:09Z No. of bitstreams: 1 SHEYLA SILVA MARINHO - DISSERTAÇÃO PPGMAT 2010..pdf: 654391 bytes, checksum: 5f92842e775dc0507ffa8d8ace6fc466 (MD5) / Made available in DSpace on 2018-07-24T14:29:09Z (GMT). No. of bitstreams: 1 SHEYLA SILVA MARINHO - DISSERTAÇÃO PPGMAT 2010..pdf: 654391 bytes, checksum: 5f92842e775dc0507ffa8d8ace6fc466 (MD5) Previous issue date: 2010-03 / Capes / Para visualizar o resumo recomendamos do download do arquivo uma vez que o mesmo utiliza fórmulas ou equações matemáticas que não puderam ser transcritas neste espaço. / In order to view the summary we recommend downloading the file as it uses mathematical formulas or equations that could not be transcribed in this space.
252

"He wouldn't have hurt that many students with a knife" : The Gun Control Paradox, Political Opportunities, and Issue Framing: A case study of the Never Again movement in Parkland, Florida

Göthberg, Rosalind January 2018 (has links)
No description available.
253

Desempenho vitivinícola da Cabernet Sauvignon em dois sistemas de condução e três porta-enxertos em região de altitude / Viticultural performance of Cabernet sauvignon in two training systems and three rootstocks in high altitudes region

Brighenti, Alberto Fontanella 25 February 2010 (has links)
Made available in DSpace on 2016-12-08T16:44:35Z (GMT). No. of bitstreams: 1 PGPV10MA050.pdf: 404855 bytes, checksum: 36e6d7d5b5fb8a59d940f37f3e2de324 (MD5) Previous issue date: 2010-02-25 / Rootstocks are used primarily for pest resistance, they are a link between the soil and the scion, play an important role in vine adaption to environmental factors. Rootstocks and training systems can influence the productivity, fruit and wine composition. The objective of this study was evaluate the influence of three rootstocks and two training systems on vineyard productivity, scion growth, physical-chemical quality of fruits and wine chemical composition of Cabernet Sauvignon grapevine produced in high altitude regions of Santa Catarina State. The study was conducted in a experimental vineyard located at the city of Painel (28°01‟02 S and 50°08‟57 W, altitude 1200 m). The cultivar evaluated was Cabernet Sauvingon grafted on Paulsen 1103 (V. berlandieri x V. rupestris), Couderc 3309 and 101-14 Mgt (V. riparia x V. rupestris), the training systems evaluated were vertical shoot positioning trellis and Y trellis. The plants were five years old and the spacing was 3,0 x 1,5 m. The experiment was evaluated at the seasons 2007/08 and 2008/09. According to the results, plants grafted on 1103P and trained in vertical shoot positioning trellis have lowest yields, 3309C is the rootstock less vigorous and and acts positively on fruit set. The high productivity of Y trellis reflect negatively increasing grape acidity. The rootstocks 1103 P and 101-14 Mgt, presents the best results for grape anthocyanins contents. The wine color is not affected by the rootstocks and the training systems. Wine made with grapes from plants grafted on 1103P and trained in Y trellis have higher rates of total polyphenols index and tannins than wines made from grapes of plants trained in vertical shoot positioning trellis and grafted on 1103P. / Os porta-enxertos são usados primariamente como uma forma de resistência a pragas e doenças, eles são uma ligação entre o solo e a copa e desempenham um papel importante na adaptação da videira a fatores ambientais. Os porta-enxertos e os sistemas de condução podem influenciar na produtividade, na composição da fruta e do vinho. O objetivo deste trabalho foi avaliar a influência de três porta-enxertos e dois sistemas de condução na produtividade do vinhedo, no crescimento da copa, na qualidade físico-química dos frutos e na composição química do vinho elaborado com a uva Cabernet Sauvignon, produzida nas regiões de altitude, do estado de Santa Catarina. O experimento foi conduzido em um vinhedo experimental da Epagri - Estação Experimental de São Joaquim, localizada no município de Painel (28°01‟02 S e 50°08‟57 O, altitude 1.200m). O trabalho foi executado com a variedade Cabernet Sauvignon, enxertado sobre Paulsen 1103 (Vitis berlandieri x Vitis rupestris), Couderc 3309 (Vitis riparia x Vitis rupestris) e 101-14 Mgt (Vitis riparia x Vitis rupestris), em dois sistemas de condução, espaldeira e manjedoura, com cinco anos de plantio, no espaçamento de 3,0 x 1,5 m. O experimento foi avaliado nas safras 2007/08 e 2008/09. De acordo com os resultados obtidos conclui-se que plantas enxertadas em 1103P e conduzidas em espaldeira apresentam as menores produtividades, 3309C é o porta-enxerto menos vigoroso e atua de forma positiva na frutificação efetiva. A produtividade elevada do sistema manjedoura reflete de forma negativa no aumento da acidez da uva. Os porta-enxertos 1103 P e 101-14 Mgt, apresentam os melhores resultados para antocianinas das uvas. A cor dos vinhos não é afetada pelos porta-enxertos e pelos sistemas de condução. Vinhos elaborados com frutos de plantas enxertadas em 1103P e conduzidas em manjedoura apresentaram maiores índices de polifenóis totais e taninos do que os vinhos originados de uvas de plantas conduzidas em espaldeira e enxertadas em 1103P
254

Analýza metod posttraumatické krizové intervence / Analysis of methods of the posttraumatic crisis intervention

HLUŠKO, Oldřich January 2010 (has links)
In my thesis, I postulated the target to map the methods and procedures applied by the CR Police, Regional Police Headquarters of the South-Bohemian Region within the primary, secondary as well as tertiary prevention of posttraumatic reactions and disorder. A partial target of the thesis is finding out the rate of the satisfaction with availability of intervention care for policemen and employees of the Regional Police Headquarters of the South-Bohemian Region, finding out the rate of the awareness, usability and satisfaction with the care of the posttraumatic intervention team in the South-Bohemian Region, awareness of the service Help Line in crisis and its usability. Moreover I postulated the goal to map the interest in the possible internet helpline in the scope of IZS with elaboration of SWOD analysis. Everybody, also policemen may suffer from stress reaction. Also they can have the psychical and physical signs of an acute stress reaction. They perform the most of service acts, interventions in a routine way, however, besides this, also situations occur, differing from the normal life experience and policemen get in this way very often into the stress situations, which can arouse deep mental turbulences. The impact of feelings on the mental state in case of extreme experiences is a normal human reaction in a not normal situation. At present, each policeman has the possibility to ask for help a team of specially trained experts, the team of posttraumatic intervention care. In the team, not only psychologists are working, but also experienced policemen, experts of the branch of the Ministry of Interior and the priests prepared to help with their experience, erudition and knowledge acquired by a special training. Since 2001 the impacted person may call the anonymous Crisis Help Line, which is a supporting part of the posttraumatic intervention care for the policemen, firemen, employees of the branch of the Ministry of Interior and their family members. The crisis help line is also at disposal to the public in case of extraordinary events and crisis situations. For this reason, this thesis treats the methods of posttraumatic intervention care, awareness, usability, satisfaction and trust in these branch offices of the CR Police.
255

Contrôle optimal géométrique et numérique appliqué au problème de transfert Terre-Lune / Numerical and geometric control methods and applications to the Earth - Moon transfert problem

Picot, Gautier 29 November 2010 (has links)
L'objet de cette thèse est de proposer une étude numérique, fondée sur l'application de résultats de la théorie du contrôle optimal géométrique, des trajectoires spatiales du système Terre-Lune dans un contexte de poussée faible. Le mouvement du satellite est décrit par les équations du problème restreint des trois corps controlé. Nous nous concentrons sur la minimisation de la consommation énergétique et du temps de transfert. Les trajectoires optimales sont recherchées parmi les projections des courbes extrémales solutions du principe du maximum de Pontryagin et peuvent être calculées grâce à une méthode de tir. Ce procédé fait intervenir l'algorithme de Newton dont la convergence nécessite une initialisation précise. Nous surmontons cette difficulté au moyen de techniques homotopiques ou d'études géométriques du système de contrôle linéarisé. L'optimalité locale des trajectoires extrémales est ensuite vérifée en utilisant les conditions du second ordre liées au concept de point conjugué. Dans le cas du problème de minimisation de l'énergie, une technique de "recollement" de trajectoires optimales kepleriennes autour de la Terre et La Lune et d'une solution optimale de l'équation du mouvement linéarisée au voisinage du point d'équilibre L1 est également proposée pour approximer les transferts Terre-Lune à énergie minimale. / This PhD thesis provides a numerical study of space trajectories in the Earth-Moon system when low-thrust is applied. Our computations are based on fundamental results from geometric control theory. The spacecraft's motion is modelled by the equations of the controlled restricted three-body problem. We focus on minimizing energy cost and transfer time. Optimal trajectories are found among a set of extremal curves, solutions of the Pontryagin's maximum principle, which can be computed solving a shooting equation thanks to a Newton algorithm. In this framework, initial conditions are found using homotopic methods or studying the linearized control system. We check local optimality of the trajectories using the second order optimality conditions related to the concept of conjugate points. In the case of the energy minimization problem, we also describe the principle of approximating Earth-Moon optimal transfers by concatening optimal keplerian trajectories around The Earth and the Moon and an energy-minimal solution of the linearized system in the neighbourhood of the equilibrium point L1.
256

Offer för lagens skott : En kvalitativ studie om journalistikens gestaltning av polisens dödsskjutning i Bagarmossen / Victim of the bullets of the law

Derblom Jobe, Michelle, Alisehovic, Dzenet January 2016 (has links)
The purpose of this study is to examine the media coverage of a police shooting in Bagarmossen, Stockholm. According to the news the police claimed it was an act of self-defense as a man fired a gun at them which is why the man was shot to death, but a month later stated that the man had not even been armed. The following study seeks to analyze the differences and similarities between articles published before and after the modified information. It also examines social actors present and how the media portrays them. We applied discourse analysis on sixteen news articles to answer our research questions. The prominent differences we found were in the portrayals of the incident and the most protrusive social actors in­volved. Before the police changed their state­ment, the man shot dead was portrayed as a criminal with deviant behavior. After the changed statement, the media portrayed him as a family man with strong ties to his hometown. The police were another social actor in our study, portrayed before the changed statements as efficient with a strong work ethic. After, the police were por­trayed as dishonest and lacking severely in their communica­tion as a legitimate authori­ty. One of the similarities found before and after the changed statement was the pres­ence of the local community as a social actor and its significance for the news media's portrayal of the incident.
257

Sportovní centrum / Sports Centre

Munzar, Daniel January 2019 (has links)
The subject of my diploma thesis is sports centre. There are 3 establishments. Main establishment is shooting range. Others are gun store and café. Floor 1S is almost completely under terrain and is designed with cast-in-place concrete. Ceiling above floor 1S is designed with cast-in-place concrete slab. Floor 1NP is designed with aerated concrete blocks with ventilated facade. Ceiling above 1NP is designed with prestressed concrete floor slabs. Roof was designed as flat roof with growing layer. The drawings were processed in a computer program ArchiCad.
258

Bezpečnost dopravního letounu při poškození draku teroristickým útokem / Safety of a Commercial Aircraft after Damage to Airframe due to Terrorist Attack

Lošťák, Miroslav January 2012 (has links)
Modern-day terrorist attacks present a considerable danger for commercial aircrafts. This thesis analyzes potential methods of such attacks with a critical analysis of the most dangerous type: an attack from the outside of the aircraft via a fragmentation missile warhead. Such missiles cause damage to the airframe of the aircraft through fragments created by the explosion. In this thesis, analytical geometry is used to determine the area of the aircraft affected by the fragmentation. The aircraft’s geometry and the fragments’ dispersion are calculated by analytical functions, and the effect of the damage is analyzed. A shooting experiment was also carried out, in which fragments were shot at a reinforced skin panel that was manufactured according to the real design of commercial aircraft. The results of the experiment revealed that only directly hit sections of the structure are damaged. Data obtained by the experiment was then used for the creation and improvement of the model used in the simulation by means of the finite element method. This model is used for the numerical calculation of the damage sustained. Further included in the thesis is an analysis of the change in the load-bearing capacity after such an attack. The relationship between the size of the damage and its effect on the load-bearing capacity of the component as well as the entire structure is defined. First, the effect of component damage is analyzed via the FMEA/FMECA methods. This analysis is then extended using fuzzy logic. Fuzzy logic analysis is based on the determination of the size of the damaged component area and the component’s importance on the structure’s carry loads. Application of the defined approach is described for several parts of an aircraft’s life cycle, including development, operation after the terrorist attack, and assessment of causes after a crash caused by a fragmentation missile warhead.
259

Obvodní oddělení Policie ČR v Kyjově / District police department of the Czech Republic in Kyjov

Šibalová, Lenka Unknown Date (has links)
The aim of this master thesis is multi-criteria assessment SBToolCZ of the building district department for Czech police in Kyjov. The building has a basement with underground garages, shooting range and technical facilities (boiler room, air conditioning room, storage, archives, cleaning room), and a ground floor with offices covered by a flat roof. The load-bearing structure of the basement is designed from watertight reinforced concrete. The ground floor has ceramic block walls. The floor and roof structure are designed from pre-stressed Spiroll. The building envelope is insulated with ETICS. The thesis also contains project documentation of building and HVAC design. The project was carried out in the AutoCad programme. Project documentation was prepared according to valid legal and technical regulations.
260

České střelecké platformy a události masové střelby: analýza komunikačních rámců / Czech gun-owner platforms and mass shooting events: framing analysis

Čadek, Matěj January 2021 (has links)
The primary goal of this diploma thesis is to analyze online and social media communication of the Czech gun-owner platforms. The online space is where these platforms are able to gather support for their cause and influence the mainstream opinion on firearms, use of guns and gun laws. This thesis presents a case study of online posts and articles of analyzed actors vis-à-vis European mass shooting incidents. Such events usually spark debates about stricter gun control which the Czech gun-owner platforms naturally oppose. The analysis is underpinned by the theory of framing and uses a methodological design proposed by the scholars Dennis Chong and James Druckman. Firstly, a basic set of frames is identified. Secondly, these frames are tested against a collection of posts and articles by one of the analyzed groups. It is concluded that most of the texts are explicitly framed using one of the identified communication frames. However, the usage of these frames varies based on the motives behind a given mass shooting. It also differs in the case of Czech incidents. Lastly, this work investigates whether and in what way the frames of gun-owner platforms are adopted by elites and the mainstream media and. In this case, a surprising conclusion is made: Despite the ideal framing environment - given the absence of...

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