As more spacecraft reach more locations in the solar system, and with increasing residual capability of those spacecraft, an opportunity exists to improve scientific return at low cost to the satellite operator and minimal effect on its primary mission, regardless of the nature of that mission. The practicality of permanently attaching a small, mass-produced, non-deployable hitchhiker payload to modern spacecraft buses is investigated, and a case study of one such payload is presented. The Ancillary Scientific Instrument Attachment (ASIA) is a modified CubeSat bus that can be mass produced, independently tested, and delivered to spacecraft manufacturers with the design, analysis, integration, test, and software development already complete. All it requires are single-string power and data connections, and a location to mount the bus structure. The unit includes power regulation; data collection and storage; command processing; thermal control; and structural support. As many as five small scientific instruments can be included, all of which increase scientific value of the host spacecraft's primary mission without significantly interfering with that mission. Generally, ASIA would operate independently, with a minimum of interaction from the host spacecraft operations team; only routine data dumps for scientific return need be executed. Scientific data processing, distribution, and bus subsystem troubleshooting are offloaded to an independent facility. One possible scientific instrument loadout is described, designed to collect data about the space environment at any location in the solar system. Recommended forward steps for designing, testing, demonstrating, and implementing such a space-based system and its ground elements are presented. / Master of Science / Modern spacecraft (“buses”) are designed to provide basic services for one or more primary payloads. These services include electrical power, orientation control and orbit maintenance, radio communication with control centers and end-users on the ground, and structure to support the payload during launch. Spacecraft buses are often Commercial-Off-The-Shelf, built to include flexibility to support a wide variety of different payloads without extensive modification. The proposed Ancillary Scientific Instrument Attachment (ASIA) is a small, self-contained module that includes a variety of small, low-cost sensors. The unit can be mass-produced, independently assembled, and delivered to a spacecraft vendor as a low-priority, simple way to increase the scientific benefit of nearly any spacecraft that launches. It is a “hitchhiker” payload, acting as a self-contained add-on unit that, unlike CubeSats, is not deployed or released once in orbit; instead, it remains connected to the host spacecraft and relies on that spacecraft for power, radio, and attitude control services. All the unit requires are power and data connections from the host spacecraft, both of which are generally abundant on modern bus designs, and a location to mount it. Because of its low cost, ASIA units can be launched on multiple satellites to distribute development and operational costs while allowing for many measurements to be taken at different parts of Earth orbit simultaneously. A ground computer system will receive, process, and distribute the scientific results of the distributed units to the scientific community. The basic organization and technical characteristics of this concept are presented, including functions of the space unit, the corresponding ground system, and an example instrument loadout for sensing characteristics of the space environment throughout the solar system.

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Yes / Against a background of the low engagement of small to medium-sized enterprises (SMEs) in e-business this paper investigates the significance of hosted services and firm aggregations. Based on qualitative case studies of aggregations of SMEs the research shows how e-business based innovation can occur, and identifies the extent to which the aggregation factor contributes to this innovation. The research confirms existing understanding of the importance of network based aggregations but adds to this with further detail and examples, including the `outsourcing¿ of innovation to the application service providers (ASPs).

The sandstone-hosted McArthur River Zone 4 U ore body and alteration system, located in the Athabasca Basin, are the focus of a detailed mineralogical and geochemical study aimed at reconstructing its evolution. The oxidation state of Fe in clay alteration from Zone 4 is measured using 57Fe Mössbauer spectroscopy and compared with other mineralized and barren sandstone-hosted alteration systems in the Athabasca Basin. The aim is to ascertain the role of Fe in forming U deposits and determine whether Fe oxidation state in alteration minerals can indicate proximity to mineralization. At Zone 4, early diagenetic kaolin is overprinted by zones of dravite, illite, chlorite, and late kaolinite forming around the P2 fault. Uranium mineralization occurred at ca. 1600 Ma and was triggered by mixing between oxidizing U-bearing basinal fluids and reducing basement-modified basinal fluids, the latter forming when basinal fluids interacted with basement lithologies. Early pre-ore silicification in the lower 200 metres of the Manitou Falls Formation above the ore body created favourable conditions for mineralization by focusing basinal fluids into the reduction site and enhancing ore preservation. However, it obstructed the post-ore migration of radiogenic Pb and U pathfinder elements from the deposit and limited the extent of hydrothermal sudoite alteration in the overlying strata. Sandstone-hosted alteration systems in the Athabasca Basin are commonly surrounded by an outer illite and an inner chlorite zone. Illites have high Fe3+/ƩFe ratios characteristic of formation from oxidizing basinal fluids, whereas, chlorites have lower and more varied Fe3+/ƩFe ratios, reflecting their origin from reducing, Fe2+-bearing basement-derived fluids having undergone variable mixing with oxidizing basinal fluids. Chlorites in mineralized systems where fluid-mixing occurred, such as at McArthur River Zone 4 and Maurice Bay, record higher Fe3+/ƩFe ratios than barren systems where fluid-mixing did not, such as at Wheeler River Zone K and Spring Point. The scarcity of U-bearing basinal fluids available for mixing with Fe2+-bearing basement fluids is a critical geochemical factor precluding mineralization in barren sandstone-hosted systems. The Fe3+/ƩFe ratio of chlorites has potential applications for discriminating barren and mineralized systems and as spatial vectors to ore when coupled with Pb isotope ratios. / Thesis (Master, Geological Sciences & Geological Engineering) -- Queen's University, 2012-11-01 14:08:33.51

Made available in DSpace on 2016-12-08T16:55:44Z (GMT). No. of bitstreams: 1 122250.pdf: 10576708 bytes, checksum: 7b792e85a231dd356160f832bb0d3e23 (MD5) Previous issue date: 2015-02-27 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The research proposed here aims to analyze the process of accession to the Association of Agrotourism Hosted in the Country - AAHC by some rural properties in the region of São Bonifácio SC, observing how this process can influence the practice of rural tourism in the region. The Association of Agrotourism Hosted in the Country created in Brazil in 1999. Is an association composed of farmers, integrated in the network Accueil Paysan, active in France since 1987. Has as proposal to valouing the way of life in the field through the ecological agrotourism. The research aims to analyze and reflect how the Association of Agrotourism Hosted in the Country may involve residents of the municipality of São Bonifácio thatvare already doing some work oriented to rural tourism or willing to develop. In this context, the theoretical framework has as guiding concept the rural tourism that comes before the crisis arises on agricultural activities and comes as an alternative income, alternative of improving conditions for families to remain in the field and recovery of natural spaces (protection), seeking to demystify the vision of the field (rural) serves only to agricultural and extractive activities. Yet when it comes to theoretical framework, will be addressed, the agrotourism and rural tourism in family farming RTFF and cultural identity. To achieve the results outlined in the research questions and objectives, the research was conducted within the qualitative approach, from a case study. The data collection was done through the research techniques, such as: collection the secondary data, documentary research, ethnography instruments, participant observation and semi-structured interviews. The survey of secondary data and documentary was first initiated through books, articles, reports and other elements that could contribute in this step. Following was held the field of activity. With the technique of participant observation aided by ethnography instruments, was possible to collect much of the data for production of this research. In this period were carried out semi-structured interviews with key social actors involved with rural tourism. At the end, these data were organized and analyzed later. It is concluded that the AAHC is consolidating gradually in the municipality of São Bonifácio. The involved prosper a better development over time and the community from São Bonifácio see the rural tourism as a way of local development, creating new forms of income facing the potential: landscape, gastronomic and cultural potentials that the city has. The associates believe in this new source of income as a way of maintaining or attract the young to the countryside, however not all are willing to wait the ripening process of the activity in the region. Another point which is still evident is the need that associates have a follow-up techniques or multipliers activity. So that the activities can be successfully developed, the technical support is still needed. / A pesquisa aqui proposta tem como objetivo analisar o processo de adesão à Associação de Agroturismo Acolhida na Colônia - AAAC por algumas propriedades rurais da região de São Bonifácio SC, observando como este processo pode influenciar na prática de turismo rural na região. A Associação Acolhida na Colônia foi criada, no Brasil, em 1999. É uma associação composta por agricultores, integrada à Rede Accueil Paysan, atuante na França desde 1987. Tem como proposta valorizar o modo de vida no campo através do agroturismo ecológico. A pesquisa visa analisar e refletir de que forma a Associação de Agroturismo Acolhida na Colônia poderá envolver moradores do Município de São Bonifácio SC que já desenvolvem algum trabalho voltado ao turismo rural ou pretendem desenvolver. Neste contexto, o referencial teórico tem como conceito norteador o turismo rural que surge diante da crise nas atividades agrícolas e vem como alternativa de renda, alternativa de melhoria das condições para as famílias permanecerem no campo e valorização de espaços naturais (proteção), procurando desmistificar a visão de que o campo (rural) serve apenas para atividades agropecuárias e extrativistas. Ainda se tratando de referencial teórico, será abordado, o agroturismo e turismo rural na agricultura familiar TRAF e identidade cultural. Para obter os resultados traçados pelas questões de pesquisa e objetivos, a pesquisa foi realizada dentro da abordagem qualitativa, a partir de um estudo de caso. A coleta de dados foi feita por meio de técnicas de pesquisa, como: levantamento de dados secundários, pesquisa documental, instrumentos da etnografia, observação participante e entrevistas semiestruturadas. O levantamento de dados secundários e documental foi iniciado primeiramente através de livros, artigos, reportagens e demais elementos que pudessem contribuir nesta etapa. Na sequência foi realizada a atividade de campo. Com a técnica de observação participante auxiliada por instrumentos da etnografia, foi possível coletar boa parte dos dados para produção desta pesquisa. Neste período foram realizadas as entrevistas semiestruturadas com alguns atores sociais envolvidos com turismo rural. Ao fim, esses dados foram organizados e posteriormente analisados. Conclui-se que a AAAC está se consolidando aos poucos no município de São Bonifácio. Os envolvidos projetam um melhor desenvolvimento com o passar do tempo e a comunidade sãobonifacense vê o turismo rural como forma de desenvolvimento local, criando novas formas de renda frente ao potencial: paisagístico, gastronômico e cultural que o município tem. Os associados acreditam nesta nova fonte de renda como um meio de manter ou aproximar os jovens do mundo rural, porém nem todos estão dispostos a esperar o processo de amadurecimento da atividade na região. Outro ponto que ainda é evidente é a necessidade que os associados têm de um acompanhamento de técnicas ou multiplicadoras da atividade. Para que as atividades possam ser desenvolvidas com sucesso, o apoio técnico ainda é necessário.

This thesis investigates how a web-hosted portal could be developed and designed in order to assist customer information updates in micro-enterprises in the ship broking business. Based on well-established system development theories and collected material, the web-hosted portal concept was developed. The development process included a case study at a ship broking company in Karlshamn, southern Sweden. Ship broking companies handle information as a mediator between other actors, thus the information becomes sensitive. In the ship broking business there is a constant need and flow of information. As the shipbrokers’ customers demand constant information 24 hours a day it is important to meet this demand in a service minded fashion. Today all customer updates are handled manually and are considered very time consuming and generate duplication of work. To solve these issues a possible solution could be to introduce information technology in the organisation. The introduction of information technology in the ship broking organisations has been slow. A contributing factor might be the widespread conservatism and resistance to changes in the ship broking business. The conclusions show the needs and demands for a web-hosted portal among shipbrokers and interested parties in the logistic chain. The result of the thesis should be considered as a foundation for further development and implementation of the concept.

The focus of this thesis is to analyze how online hosted applications available free of charge can be used to support work in virtual teams. The objectives are first to characterize virtual teams and groupware applications, and then to analyze the scope and functionality of available applications including more detailed evaluation and comparison of certain selected applications (which also support collaborative document creation). Key factors that need to be considered when choosing applications for virtual teams are identified along with other characteristics of virtual teams and team processes. A brief outline of the characteristic features of groupware applications and the SaaS model is followed by comprehensive analysis of various categories of available applications and their functionality. This analysis includes recommendations regarding the suitability of different applications for specific teams and situations. Services offered by suppliers of more complex sets of applications, which include applications supporting collaborative document creation, are analyzed and compared in greater detail. Some of these sets are recommended as a suitable foundation for complex support of the work of a virtual team. The whole analysis is closed by an illustrative case scenario, which can be used as an educational tool to enable people to get to know the basic principles of virtual teamwork and of some of the applications analyzed in this thesis.

Volcanic-hosted massive sulfide (VMS) deposits are one of the main sources for zinc, copper, lead, silver and gold in Sweden. The majority of VMS deposits in Sweden are located in the Bergslagen region and the Skellefte district (Fig. 1). The Skellefte district hosts approximately 80 VMS deposits whereas 21 deposits have been mined since 1924 and 6 mines are currently in operation. VMS deposits tend to form more often on the intersection of the normal/reverse and transfer faults since there is an increased conductivity for hydrothermal fluids and increased fluid flow, so a structural interpretation of regional and deposit scale is important for exploration. The alteration patterns and mapped structures observed in the West Maurliden coincide with major structures found in the Skellefte district. Using this data and data from previous authors a general structural evolution of the Maurliden deposit has been constructed which shows the presumed outcome from the early extensional and later compressional stages ongoing in the region. Study of the mineralization shows that there is also the possibility to find mineralized rock within possible low strain blocks which might contain preserved primary textures and structures. A schematic plan view of the structure assemblage in the Skellefte district was established which shows perspective areas for future exploration.

No description available.