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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.
51

Operator task analysis of a shipboard electronic warfare system

Dyess, Robert M. 30 March 2010 (has links)
The goal of this work was to evaluate an electronic warfare system from a human factors engineering perspective. The evaluation began by looking at the top-level system requirements and included a functional analysis of critical components of the man-machine interface. Once a critical operator task was identified, two separate trade-off studies provided objective data for redesign recommendations. The first section of this work defines the operational requirements and maintenance concept for an electronic warfare system. This is the first step in defining the human interface requirements for the system. The second section provides a brief history of the U.S. Navy's AN/SLQ-32(V) Electronic Warfare System. Although recognized as an integral part of the U.S. Navy's defense against low-flying anti-ship missiles, several incidents indicate a need for system improvement. The next section of this work defines the AN/SLQ-32(V). The definition starts from a macro-level and, then, discusses the system to the level necessary to understand the system. The goal was to conduct and document a task analysis of the interface between the operator and the AN/SLQ-32(V). This task analysis was used as a tool to compare system redesign options. The final section of the work involved the acquisition of information from naval operators and the assessment of existing system design features from actual and simulated Display Control Consoles (DCC). The critique of these data considered operator task requirements in actual and simulated electronic warfare scenarios. This included the time required to detect, analyze, and act-upon radar intercepts in anti-ship missile defense. From this evaluation, recommendations were developed and justified for DCC system design changes. / Master of Science
52

Construir navios é preciso, persistir não é preciso: a construção naval militar no Brasil entre 1850 e 1910, na esteira da Revolução Industrial / Build ship is needed. Persist is not: the construction of warships in Brazil between 1850 and 1910, behind the Industrial Revolution

Martini, Fernando Ribas de 17 October 2014 (has links)
Em meados do século XIX, o Império do Brasil buscou acompanhar avanços tecnológicos na construção e operação de navios de guerra, trazidos pela propulsão a vapor e pelos avanços na artilharia, que em breve culminaram no desenvolvimento do encouraçado na Europa e de seu primeiro emprego operacional, na Guerra Civil dos Estados Unidos (1861-1865). Combinadas essas necessidades militares e tecnológicas com uma política mais ativa do Império nas questões dos estados platinos, ao início da Guerra da Tríplice Aliança (1864-1870) deu-se um primeiro surto de construção naval militar, para atender às demandas de guerra, que incluíam a construção de encouraçados para operações fluviais, empregando os meios tecnológicos e conhecimentos acumulados desde as iniciativas da década anterior. Cerca de dez anos após o final da guerra, iniciou-se outro surto de construção naval militar, embora sem uma urgência bélica estabelecida, e sim uma perceptível defasagem tecnológica em relação aos navios que se construíam em países de industrialização avançada. Os últimos navios construídos desse segundo surto foram incorporados após a Proclamação da República (1889). O objetivo deste trabalho é compreender as razões que desencadearam esses dois surtos de construção naval militar e que os levaram ao fim, analisando a questão sob o ponto de vista de três fatores interligados: as relações internacionais, as necessidades militares e as necessidades de absorver tecnologia / In the mid-nineteenth century, the Empire of Brazil sought to follow technological advancements in the construction and operation of warships, brought about by steam propulsion and advances in artillery, which soon culminated in the development of the ironclads in Europe and its first operational deployment in the U.S. Civil War (1861-1865). These military and technological needs were combined with a more active policy of the Empire in affairs with the states of the River Plate Basin, and, with the beginning of the War of the Triple Alliance (1864-1870), began a first outbreak of military shipbuilding to meet the war demands, which included the construction of ironclads for riverine operations, employing the technology and knowledge accumulated since the initiatives of the previous decade. About ten years after the end of the war, another outbreak of military shipbuilding began, though without a war urgency established, but a noticeable technological gap in relation to warships built in advanced industrialized countries. The last ships built in this second outbreak wee commissioned after the Proclamation of the Republic (1889). The objective of this work is to understand the reasons that led these two outbreaks of military shipbuilding and finished both, analyzing this problem from the point of view of three interrelated factors: international relations, military needs and the needs of absorbing technology
53

Lateral control system design for VTOL landing on a DD963 in high sea states

Bodson, Marc January 1982 (has links)
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; and, (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1982. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING / Includes bibliographical references. / by Marc Bodson. / M.S.
54

Construir navios é preciso, persistir não é preciso: a construção naval militar no Brasil entre 1850 e 1910, na esteira da Revolução Industrial / Build ship is needed. Persist is not: the construction of warships in Brazil between 1850 and 1910, behind the Industrial Revolution

Fernando Ribas de Martini 17 October 2014 (has links)
Em meados do século XIX, o Império do Brasil buscou acompanhar avanços tecnológicos na construção e operação de navios de guerra, trazidos pela propulsão a vapor e pelos avanços na artilharia, que em breve culminaram no desenvolvimento do encouraçado na Europa e de seu primeiro emprego operacional, na Guerra Civil dos Estados Unidos (1861-1865). Combinadas essas necessidades militares e tecnológicas com uma política mais ativa do Império nas questões dos estados platinos, ao início da Guerra da Tríplice Aliança (1864-1870) deu-se um primeiro surto de construção naval militar, para atender às demandas de guerra, que incluíam a construção de encouraçados para operações fluviais, empregando os meios tecnológicos e conhecimentos acumulados desde as iniciativas da década anterior. Cerca de dez anos após o final da guerra, iniciou-se outro surto de construção naval militar, embora sem uma urgência bélica estabelecida, e sim uma perceptível defasagem tecnológica em relação aos navios que se construíam em países de industrialização avançada. Os últimos navios construídos desse segundo surto foram incorporados após a Proclamação da República (1889). O objetivo deste trabalho é compreender as razões que desencadearam esses dois surtos de construção naval militar e que os levaram ao fim, analisando a questão sob o ponto de vista de três fatores interligados: as relações internacionais, as necessidades militares e as necessidades de absorver tecnologia / In the mid-nineteenth century, the Empire of Brazil sought to follow technological advancements in the construction and operation of warships, brought about by steam propulsion and advances in artillery, which soon culminated in the development of the ironclads in Europe and its first operational deployment in the U.S. Civil War (1861-1865). These military and technological needs were combined with a more active policy of the Empire in affairs with the states of the River Plate Basin, and, with the beginning of the War of the Triple Alliance (1864-1870), began a first outbreak of military shipbuilding to meet the war demands, which included the construction of ironclads for riverine operations, employing the technology and knowledge accumulated since the initiatives of the previous decade. About ten years after the end of the war, another outbreak of military shipbuilding began, though without a war urgency established, but a noticeable technological gap in relation to warships built in advanced industrialized countries. The last ships built in this second outbreak wee commissioned after the Proclamation of the Republic (1889). The objective of this work is to understand the reasons that led these two outbreaks of military shipbuilding and finished both, analyzing this problem from the point of view of three interrelated factors: international relations, military needs and the needs of absorbing technology
55

Venise, mutations d’une puissance navale au XVIIe siècle / Venice, changes of a naval power in the XVIIth century

Candiani, Guido 21 January 2011 (has links)
La composition, l’organisation et le fonctionnement de la marine de guerre vénitienne ont fait l’objet de nombreuses études pour l’époque médiévale et le XVIe siècle, mais les historiens ont largement négligé le XVIIe siècle. Pourtant, cette période joue un rôle crucial dans l’histoire maritime de la Sérénissime. Alors qu’à l’orée du XVIIe siècle, la marine vénitienne était exclusivement composée de galères, elle comprend cent ans plus tard une majorité de vaisseaux de ligne, tandis que les trirèmes vénitiennes, qui sont toujours utilisées en période de paix pour assurer la police de l’Adriatique et de la mer Ionienne, ne servent plus que de force d’appoint dans les moments de guerre.Le présent travail considère cette évolution, sous l'aspect soit opérationnel qui gestionnaire et d'organisation. À ce but, il a été réparti en deux tranches. En la première, on a parcouru les événements qui ont intéressé la marine vénitienne dans la période qui va de 1572 au 1699. Ici, jusqu'à 1635 environ, les principaux adversaires ne furent plus les Turcs, mais les force des Habsbourg, dans leur double déclinaison italique-espagnole et autrichienne, et seulement après le 1645 allèrent recommencer les conflits avec l'Empire Ottoman. Dans la seconde tranche du travail on a analysées les structures sur lesquels s’articulaient la marine vénitienne et ses hommes. En particulier on a distinguées les forces ordinaires de celles extraordinaires, en opérant une séparation nette entre les deux composants de la flotte et les correspondantes organisations. / The composition, the organization and the functioning of the Venetian Navy have been the subject of numerous studies for the medieval time and the XVIth century, but the historians have disregarded the XVIIth century. Yet, this period plays a crucial role in the maritime history of the Serenissima. Whereas to the verge of the XVIIth century, the Venetian Navy was composed exclusively of galleys, a hundred years later it consisted of a majority of ships-of-the-line, while the Venetian triremes, which were always used in period of peace to assure the police of the Adriatic and the sea Ionian, acted only by balancing force in the wars. The present work considers this evolution, under the aspect either operational then of administration and organization. To this purpose, it has been distributed in two sections. The first part looks at the events that interested the Venetian Navy in the period that go from 1572 to 1699. Here, until about 1635, the main adversaries were not anymore the Turks, but the Hapsburg forces, in their double Spanish-Italic and Austrian declination, and only after the 1645 the conflicts with the Ottoman empire were going to restart. The second part of the work analyses the structures on which were articulated the Venetian Navy and her tools and men. In particular it has distinguished the ordinary forces from those extraordinary, operating a clean separation between the two components of the fleet and the respective organizations.
56

U.S. Naval expansion in the Gilded Age

Barr, George Sturginne 08 August 2015 (has links)
U.S. naval expansion is considered to be inevitable. When it is discussed at all, especially in recent scholarly works, it merits at most a few paragraphs briefly mentioning that in the late nineteenth century the United States constructed a modern navy. It is portrayed as if U.S. leaders mostly favored greatly expanding the nation’s naval power and that little to no serious opposition existed among government leaders. Naval expansion, however, fundamentally altered U.S. foreign policy. It represented one of the most significant shifts in the Gilded Age, an era often thought of as a forgettable period in U.S. politics with no major political events taking place. If anything, naval expansion should be the single most discussed political decision to come out of this period and President Benjamin Harrison should be remembered for his role in this development. After all, there are few presidential actions from this period that continue to greatly affect U.S. policy today, and Harrison and his fellow naval expansionists deserve more than a footnote in history.
57

海洋安全保障と国際法 : 領海秩序維持のための沿岸国の措置 / カイヨウ アンゼン ホショウ ト コクサイ ホウ : リョウカイ チツジョ イジ ノ タメ ノ エンガンコク ノ ソチ

佐藤 教人, Norihito Sato 31 March 2016 (has links)
国境衝突事件において、そこで用いられる"use of force"が法執行活動の実力行使なのか、国連憲章2条4項の意味における武力の行使なのかに注目し、その接際部付近にある判例及び国家実行を分析した論文である。 / The principal aim of this thesis is that while noting they should distinguish ones of LAW ENFORCEMENT and ones of THE USE OF FORCE REFERED TO THE UN CHARTER to use a "use of force" in frontier incidents, it is to analysis jurisprudence and state practices near the connection between the two concepts. / 博士(法学) / Doctor of Laws / 同志社大学 / Doshisha University
58

L'internationalisation des chaînes de valeur dans l'industrie de défense : le cas du naval / Value chains internationalization in the defense industry : focus on the naval industry

Hérault, Paul 13 February 2018 (has links)
L’internationalisation des chaînes de valeur fait l’objet de nombreuses recherches macroéconomiques ou ciblées sur des secteurs majoritairement civils. En se concentrant sur l’industrie de défense, cette thèse évalue comment ce processus de fragmentation fonctionnelle et géographique peut s’appliquer à un secteur hautement régulé par les Etats et dont les échanges internationaux sont très strictement encadrés.Cette recherche apporte plusieurs estimations du niveau d’internationalisation de l’industrie navale de défense française, à partir de données originales de Naval Group. Si les programmes relatifs à la dissuasion nucléaire sont très peu internationalisés, de nombreux facteurs concourent à l’internationalisation de la filière : exigences de contenu local et transferts de technologie des clients étrangers, intégration de technologies civiles ou duales, stratégies d’internationalisation. Enfin, le recours au concept de modularité permet de montrer que l’évolution du processus productif s’accompagne souvent d’une évolution de l’architecture des produits. / Many research works have already been dedicated to the internationalization of value chains. Whereas this research is often performed through macroeconomics or focused on civilian sectors, this thesis examines how the process of functional and geographic unbundling can apply to such a regulated sector as the defense industry, where exports are strictly controlled by states.Based on original data provided by Naval Group, this dissertation set out several estimates of the internationalization level of French navy programs. Although programs related to nuclear deterrence remain almost exclusively « made in France », many factors contribute to the internationalization of value chains in the naval industry: transfer of technology, local content requirements, integration of commercial or dual-use technologies, internationalization corporate strategies. Referring to the concept of modularity, this thesis reveals that changes in production process can foster innovation in product architecture.

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