955 resultados para archéologie maritime


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On trouve sur les côtes de l’estuaire du Saint-Laurent des vestiges de quai dont la ressemblance mutuelle suggère leur contemporanéité. Les vestiges de ces «quais du gouvernement » relatent une importante conjoncture (1870-1930) caractérisée par l'intégration des localités côtières dans une économie interrégionale. Le quai, autrefois lieu d'interface entre la ruralité et le cabotage, devient pour l'archéologue une occasion de retracer les éléments entrant dans sa conception et sa réalisation. L’observation des éléments architecturaux permet de distinguer les traits architecturaux associés aux quais du gouvernement parmi l’ensemble des techniques de construction déjà employées dans l’estuaire au XIXe siècle.

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Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal.

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Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal.

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Selon l’image reçue des Vikings, ce peuple incarne l'esprit d’une immense solidarité primitive ayant su résister rudement au joug du christianisme et à la domination du Latin en Europe occidentale. Cette image n’est pas sans ses contradictions et, s’il est vrai que l’écriture était encore inconnue en Scandinavie durant les premiers siècles de l’expansion viking, on sait maintenant que le commerce et la colonisation, autant que les célèbres raids, motivèrent l’irruption des peuples scandinaves sur la scène médiévale. Quant aux navires de ces marchands, colonisateurs, pêcheurs et guerriers, ils apparaissent, un peu à l’image des Vikings eux-mêmes, sur le grand tableau de l’histoire nautique sous l’enseigne d’une originalité et d’une technicité sans parallèle. Comment les Vikings construisaient-ils leurs navires, en leur donnant une symétrie, un équilibre et une finesse si achevés? Les premiers ethnologues qui se sont intéressés à cette question ont privilégié les idées issues d'une tradition acquise par des générations de constructeurs, et d'astuces simples pour équilibrer tribord et bâbord. Puis, ils se sont rapidement tournés vers les techniques inhérentes à la construction à clin : utilisation de planches fendues et non sciées et de rivets abondants témoignant d’une sidérurgie acquise depuis peu. Le problème que présentent ces navires, est que leur construction artisanale demeure conforme à l’image reçue des Vikings, mais que leur conception architecturale, réalisée selon des connaissances théoriques très exactes, brise la notion d’une Scandinavie médiévale illettrée et coupée des grands centres du savoir. Ce travail s’intéresse précisément à la conception architecturale des navires scandinaves du VIIIe au XIe siècle pour montrer comment ils s’insèrent dans un haut savoir européen dès leur apparition. Il explore ensuite les liens qui unissent ce savoir théorique aux aspects véritablement originaux des navires vikings, en l’occurrence leur construction à clin et leur homogénéité sur une grande région à travers plus de cinq siècles. Au terme de cette recherche, l'analyse réalisée sur le maître-couple de trois épaves vikings, une épave antique et une épave scandinave pré-viking, a permis de mettre en évidence plusieurs indices de l'utilisation du système de conception géométrique apparaissant pour la première fois dans les traités d'architecture navale de la Renaissance, et ce, sur chacune de ces épaves. Les résultats obtenus démontrent qu'il est possible d'employer un système transversal de conception pour des navires vraisemblablement construits bordé premier et assemblés à clin.

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Ce mémoire porte sur l’étude de la culture matérielle de l’Auguste, un navire de cartel ayant fait naufrage en 1761 au nord-est de l’île du Cap-Breton, en Nouvelle-Écosse. La date de 1759 marque la conquête de la Nouvelle-France par l’Angleterre. La France perd donc un important territoire. À la suite de la capitulation de Montréal en 1760, un Régime militaire temporaire anglais est mis en place et entraîne le départ de plusieurs membres des classes dirigeantes de la colonie vers la France. Leur rapatriement est effectué au moyen de navires de cartel, c’est-à-dire des vaisseaux voyageant sous drapeau blanc et transportant des « prisonniers », leur famille et leurs avoirs. L’Auguste, un navire marchand d’appartenance britannique, est réquisitionné à Québec comme navire de cartel à l’automne 1761. Un mois après son départ, le navire s’échoue dans la baie d’Aspy et fait naufrage en emportant à la mort la majorité des passagers. Plus de deux siècles après ces événements tragiques, un partenariat entre Parcs Canada et des plongeurs locaux a mené à la réalisation de deux campagnes de fouilles archéologiques à la fin des années 1970 mettant au jour une collection de plus de quatre mille artefacts. L’analyse de cette culture matérielle comprend notamment la mise en contexte de l’histoire et de la découverte du navire et un classement des artefacts selon des catégories fonctionnelles liées à l’archéologie maritime. Les différents niveaux analytiques mènent ultimement à l’intégration des données archéologiques dans la compréhension du rapatriement des élites au sein de l’État moderne et à l’établissement de liens intéressants entre les familles nanties de la colonie et certains artisans de Nouvelle-France. L’étude de l’Auguste a finalement permis de mettre en lumière la fonction de cartel du navire et d’établir et l’organisation maritime d’un voyage transatlantique pour le transport de passagers.

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Searching for humans lost in vast stretches of ocean has always been a difficult task. This paper investigates a machine vision system that addresses this problem by exploiting the useful properties of alternate colour spaces. In particular, the paper investigates the fusion of colour information from the HSV, RGB, YCbCr and YIQ colour spaces within the emission matrix of a Hidden Markov Model tracker to enhance video based maritime target detection. The system has shown promising results. The paper also identifies challenges still needing to be met.

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This work seeks to fill some of the gap existing in the economics and behavioural economics literature pertaining to the decision making process of individuals under extreme environmental situations (life and death events). These essays specifically examine the sinking’s of the R.M.S. Titanic, on 14th April of 1912, and the R.M.S. Lusitania, on 7th May 1915, using econometric (multivariate) analysis techniques. The results show that even under extreme life and death conditions, social norms matter and are reflected in the survival probabilities of individuals onboard the Titanic. However, results from the comparative analysis of the Titanic and Lusitania show that social norms take time to organise and be effective. In the presence of such time constraints, the traditional “homo economicus” model of individual behaviour becomes evident as a survival of the fittest competition.

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With the rise in attacks and attempted attacks on marine‐based critical infrastructure, maritime security is an issue of increasing importance worldwide. However, there are three significant shortfalls in the efforts to overcome potential threats to maritime security: the need for greater understanding of whether current standards of best practice are truly successful in combating and reducing the risks of terrorism and other security issues, the absence of a collective maritime security best practice framework and the need for improved access to maritime security specific graduate and postgraduate (long) courses. This paper presents an overview of existing international, regional national standards of best practice and shows that literature concerning the measurement and/ or success of standards is virtually non‐existent. In addition, despite the importance of maritime workers to ensuring the safety of marine based critical infrastructure, a similar review of available Australian education courses shows a considerable lack of availability of maritime security‐specific courses other than short courses that cover only basic security matters. We argue that the absence of an Australian best practice framework informed by evaluation of current policy responses – particularly in the post 9/11 environment – leaves Australia vulnerable to maritime security threats. As this paper shows, the reality is that despite the security measures put in place post 9/11, there is still considerable work to be done to ensure Australia is equipped to overcome the threats posed to maritime security.

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In light of McDermott Industries (AUST) Pty Ltd v Commissioner of Taxation, and Draft Taxation Ruling TR 2006/D8, this article considers the current Australian taxation position of profits arising from the cross-border leasing of vessels in the maritime industry. It focuses on the tax treaties to which Australia is a party, in particular the application of the business profits provisions of those treaties, and the deemed existence of a permanent establishment where substantial equipment, owned by a fiscal non-resident, is used within Australian waters.

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Maritime security has emerged as a critical legal and political issue in the contemporary world. Terrorism in the maritime domain is a major maritime security issue. Ten out of the 44 major terrorist groups of the world, as identified in the US Department of State’s Country Reports on Terrorism, have maritime terrorism capabilities. Prosecution of maritime terrorists is a politically and legally difficult issue, which may create conflicts of jurisdiction. Prosecution of alleged maritime terrorists is carried out by national courts. There is no international judicial institution for the prosecution of maritime terrorists. International law has therefore anticipated a vital role for national courts in this respect. The international legal framework for combating maritime terrorism has been elaborately examined in existing literature therefore this paper will only highlight the issues regarding the prosecution of maritime terrorists. This paper argues that despite having comprehensive intentional legal framework for the prosecution of maritime terrorists there is still some scopes for conflicts of jurisdiction particularly where two or more States are interested to prosecute the same offender. This existing legal problem has been further aggravated in the post September 11 era. Due to the political and security implications, States may show reluctance in ensuring the international law safeguards of alleged perpetrators in the arrest, detention and prosecution process. Nevertheless, international law has established a comprehensive system for the prosecution of maritime terrorists where national courts is the main forum of ensuring the international law safeguards of alleged perpetrators as well as ensuring the effective prosecution of maritime terrorists thereby playing an instrumental role in establishing a rule based system for combating maritime terrorism. Using two case studies, this paper shows that the role of national courts has become more important in the present era because there may be some situations where no State is interested to initiate proceedings in international forums for vindicating rights of an alleged offender even if there is a clear evidence of violation of international human rights law in the arrest, detention and prosecution process. This paper presents that despite some bottlenecks national courts are actively playing this critical role. Overall, this paper highlights the instrumental role of national courts in the international legal order.

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This paper presents a disturbance attenuation controller for horizontal position stabilization for hover and automatic landings of a Rotary-wing Unmanned Aerial Vehicle (RUAV) operating in rough seas. Based on a helicopter model representing aerodynamics during the landing phase, a nonlinear state feedback H-infinity controller is designed to achieve rapid horizontal position tracking in a gusty environment. The resultant control variables are further treated in consideration of practical constraints (flapping dynamics, servo dynamics and time lag effect) for implementation purpose. The high-fidelity closed-loop simulation using parameters of the Vario helicopter verifies performance of the proposed position controller. It not only increases the disturbance attenuation capability of the RUAV, but also enables rapid position response when gusts occur. Comparative studies show that the H-infinity controller exhibits great performance improvement and can be applied to ship/RUAV landing systems.

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Modern international shipping is largely a flag state-based system. Only the flag state has complete authority over the vessels that fly its flag, and as a result, other states’ jurisdiction over these vessels is very limited. Against this backdrop, this article examines the flag state’s responsibility for maritime terrorism, a major security issue and vulnerability in the global supply chain. It is not an exaggeration that the global community’s repeated statements regarding the illegality of terrorism have created a customary international law obligation for states to take all possible steps for the prevention of terrorism. This article argues that providing flags to suspicious entities in an obscure registration system is not compatible with this obligation.

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Maritime terrorism is one of the main maritime security issues in the contemporary world. The threat of maritime terrorism is more apparent than ever in the post-September 11 era. Although maritime terrorism is an old issue, the disastrous events of 11 September 2001 brought this issue again onto the global agenda. This incident brought to the forefront the longstanding concerns that terrorists could severely disrupt the global maritime supply chain by using shipping containers or vessels to attack major business centres, port facilities and offshore installations. A number of international criminal law studies have been conducted to identify international legal challenges in maritime security. Some of these works have critically examined the international legal framework for maritime security and identified the lacunas in the existing system. Some of these writings have also identified that emerging maritime terrorism issues are prompting States to introduce some stringent measures. Although the international legal regime related to maritime terrorism is a well-researched area, very little research work has explored the legal issues related to State responsibility for maritime terrorism. This article argues that, although the United Nations Convention on the Law of the Sea (UNCLOS) provisions related to maritime piracy may not be applicable for some dimensions of maritime violence, different provisions of UNCLOS may relevant in identifying State responsibility for maritime terrorism.

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Maritime terrorism is a serious threat to global security. A major debate in this regard is the treating of acts of maritime terrorism as piracy by some scholars and a rejection of this view by others. Moreover, the international law of maritime terrorism suffers from fundamental definitional issues, much like the international law of terrorism. This article examines the current international law of maritime terrorism with a particular emphasis on the debate regarding the applicability of the international law of piracy in the case of maritime terrorism. It argues that the international law of piracy is not applicable in the enforcement and prosecution of maritime terrorists on the high seas. International treaties on terrorism and the post-September 11 developments relating to international laws on terrorism have created a workable international legal framework for combating maritime terrorism, despite some bottlenecks.

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Piracy is one of the main maritime security concerns in the contemporary world. The number of piracy incidents is increasing rapidly, which is highly problematic for maritime security. Although international law provides universal jurisdiction for the prosecution of maritime pirates, the actual number of prosecutions is alarmingly low compared to the number of incidents of piracy. Despite many states becoming parties to the relevant international conventions, they are reluctant to establish the necessary legal and institutional frameworks at the national level for the prosecution of pirates. The growing incidences of piracy and the consequential problems associated with prosecuting pirates have created doubts about the adequacy of the current international legal system, which is fully dependent on national courts for the prosecution of pirates. This article examines the possible ways for ensuring the effective prosecution of pirates. Contrary to the different proposals forwarded by researchers in the wake of Somali piracy for the establishment of international judicial institutions for the prosecution of pirates, this article argues that the operationalization of national courts through the proper implementation of relevant international legal instruments within domestic legal systems is the most viable solution. However, this article submits that the operationalization of national courts will not be very successful following the altruistic model of universal adjudicative jurisdiction. A state may enact legislation implementing universal jurisdiction but will not be very interested in prosecuting a pirate in its national court if it has no relation with the piratical incident. Rather, it will be successful if the global community seriously implement the Convention for the Suppression of Unlawful Acts against the Safety of Maritime Navigation (SUA Convention), which obligates the states that have some connection with a piratical incident to prosecute pirates in their national courts.