abstract: The objective of this work is to develop a Stop-Rotor Multimode UAV. This UAV is capable of vertical take-off and landing like a helicopter and can convert from a helicopter mode to an airplane mode in mid-flight. Thus, this UAV can hover as a helicopter and achieve high mission range of an airplane. The stop-rotor concept implies that in mid-flight the lift generating helicopter rotor stops and rotates the blades into airplane wings. The thrust in airplane mode is then provided by a pusher propeller. The aircraft configuration presents unique challenges in flight dynamics, modeling and control. In this thesis a mathematical model along with the design and simulations of a hover control will be presented. In addition, the discussion of the performance in fixed-wing flight, and the autopilot architecture of the UAV will be presented. Also presented, are some experimental "conversion" results where the Stop-Rotor aircraft was dropped from a hot air balloon and performed a successful conversion from helicopter to airplane mode. / Dissertation/Thesis / M.S.Tech Mechanical Engineering 2011

Studier visar att god planering sänker omkostnader och kostnader för ÄTA-arbeten. Det innebär att genomtänkt planering blir en allt viktigare faktor för att kunna minska kostnader för slöseri samt uppnå en effektiv produktion och god kvalitet. Ett hjälpmedel för att uppfylla detta är verktyget arbetsberedning. Arbetsberedning är ett begrepp som genom planering underlättar genomförandet av en aktivitet. För att uppnå önskat resultat och kvalitet ska val av utförandemetod, arbetskraft, material, maskiner och hjälpmedel fastställas i god tid innan arbetsmomentet påbörjas. Syftet med detta examensarbete är att göra en nulägesanalys av hur Peabs arbetsberedningar fungerar i produktionen. Att kartlägga eventuella fel eller brister samt att undersöka möjligheten till effektivisering. Målet är att effektivisera arbetsberedningen och presentera förbättringar. Studien har genomförts på Peab region mellersta och aktuella byggprojekt i Karlstad under våren 2017. Den omfattar en fallstudie på Talldungen förskola samt en intervjustudie där platschefer, arbetsledare och yrkesarbetare har intervjuats. Resultatet visar att Peab har ett strukturerat arbetssätt gällande arbetsberedningar och att medarbetare anser att verktyget är ett bra hjälpmedel. Med hjälp av arbetsberedning klargörs krav och eventuella frågetecken kan redas ut innan aktivitetsstart. Vid beredningen deltar yrkesarbetarna aktivt och kan påverka val av arbetsmetod, maskiner och verktyg. Detta resulterar i en positiv inställning och upplevs även ge bättre sammanhållning mellan yrkesgrupperna. Ett återkommande problem är att arbetsberedning inte prioriteras tidsmässigt vilket gör att uppföljningen efter genomförd aktivitet blir bristfällig och saknar ofta dokumentation. Utifrån de slutsatser som tagits från analysen rekommenderas utbildning, erfarenhetsbank samt ritning- och anvisningsstation som åtgärder. Peab bör även bli bättre på att informera sina medarbetare om vilka verktyg som finns tillgängliga samt satsa på att utveckla BIM-användandet. / Studies show that good planning reduces operating coasts and costs for change and additional work. It means that thoughtful planning becomes a more important factor in reducing waste costs and achieving efficient production and good quality. A tool to achieve this is work preparation. Work preparation is a concept that, through planning, facilitates the performance of an activity. To achieve the desired result and quality, the choice of the performance method, workforce, materials, machines and other tools must be decided in good time before the work begins. The purpose of this graduate project is to make a status analysis of how Peab's work preparations are used in production. Identify errors or deficiencies and to investigate the possibility of streamlining. The objective is to get the work preparation more efficient and to suggest improvements. The study has been made in cooperation with Peab Region middle and the current building projects in Karlstad in spring 2017. It comprises a case study (on/at Talldungen preschool) and an interview study where site managers, supervisors and construction workers have been interviewed. The result shows that Peab has a structured work preparation and that the employees find the toolset useful. Working preparation clarifies requirements and any questions can be resolved before the start of the activity. During the preparation, the construction workers actively participate and can influence the choice of working methods, machines and tools. This results in a positive attitude and is perceived to provide better teamwork. One reoccurring problem is that time for work preparation is not prioritized, which means that the follow-up after a completed activity becomes insufficient and the documentation is often missing. Based on the conclusions drawn from the analysis, education, a bank of experience and also a drawing and instructional station are recommended as arrangements. Peab should be better at informing the employees about the available tools and should also be investing in developing the use of BIM.

Frequent floods of the Bečva River with increasingly more dramatic progress represent a growing threat to the region. The high cost of the solution is connected with it. This fact makes every reasonable individual think of how to prevent the floods or at least mitigate the effects on inhabitants´ lives, the regional economy and the natural environment. In 1997, there was almost no effective way to warn and protect inhabitants against the sudden arrival of flood waters. The absence of these measures kick-started changes in the field of crisis management. Although the floods of 2006 did not impact the area I am dealing with, they have definitely revealed the effectiveness and the positive trends of safety measures in population protection development. More dramatic flooding of the Becva River in 2010, tested the preparedness of not only the flood authorities, IZS (Emergency and Rescue Services), but practically all the region's inhabitants. The aim of this work is to discover if the 1997 floods started adequate flood control construction in the region, their current state and future plans. I would like to present and compare three of the most interesting studies concerning the Bečva river flood controls.

A crescente onda de escândalos surgidos nos Estados Unidos na virada da década de 90, relacionados às demonstrações contábeis trouxeram uma importante mudança na ótica que se tinha dos controle internos. Podemos afirmar que 2002, com a promulgação da Sarbanes-Oxley Act transformou-se em um marco histórico dentro do âmbito empresarial americano, no que tange a controles internos, sendo o divisor de águas do que existia antes e depois em termos de forma de encarar a necessidade de as empresas possuírem uma estrutura de controles internos. Os controles internos passaram, sob o prisma de muitas empresas, de meros procedimentos de formalização de atividades e processos à condição de exigência legal. A nova Lei traz através da obrigatoriedade de apresentação de formulários específicos que devem ser assinados pelos altos representantes das empresas e a aplicação de sanções para quem não o faz ou faz de forma falsa, a conseqüente implementação de uma estrutura de controles internos que deverá ser monitorada, aperfeiçoada e enriquecida sempre que aparecer algum novo risco ou a empresa desenvolver uma operação. / The growing number of accounting scandals that have taken place in the USA at the turn of the 90's brought about an important change in how internal controls are understood. One could say that the Sarbanes-Oxley Act in 2002 was a landmark in the American corporate world as far as internal controls are concerned. It was a turning point in the way companies face the need for a structure of internal controls, which for many of them have changed from mere formalizing procedures to a legal requirement. This new law requires specific forms to be filled out which have to bear the signature of the company's top management. Forgery or failure to comply involves penalties. The new law makes it necessary to implement an internal controls structure which is to be monitored and improved whenever a new risk is at play or when the company has a new operation.

Submitted by Ana Luiza Carlier (aluizacarlier@gmail.com) on 2016-01-14T17:35:49Z No. of bitstreams: 1 Ana Luiza Carlier - Dissertação MEX - 2015.pdf: 1651896 bytes, checksum: c120dc7fdc97125a7b8cda2eb1aec323 (MD5) / Approved for entry into archive by Janete de Oliveira Feitosa (janete.feitosa@fgv.br) on 2016-01-14T19:06:19Z (GMT) No. of bitstreams: 1 Ana Luiza Carlier - Dissertação MEX - 2015.pdf: 1651896 bytes, checksum: c120dc7fdc97125a7b8cda2eb1aec323 (MD5) / Approved for entry into archive by Marcia Bacha (marcia.bacha@fgv.br) on 2016-01-21T13:24:55Z (GMT) No. of bitstreams: 1 Ana Luiza Carlier - Dissertação MEX - 2015.pdf: 1651896 bytes, checksum: c120dc7fdc97125a7b8cda2eb1aec323 (MD5) / Made available in DSpace on 2016-01-21T13:25:09Z (GMT). No. of bitstreams: 1 Ana Luiza Carlier - Dissertação MEX - 2015.pdf: 1651896 bytes, checksum: c120dc7fdc97125a7b8cda2eb1aec323 (MD5) Previous issue date: 2015-12-14 / This study attempts to compare the internal structures of Rio de Janeiro State Public Health Secretariat (SES/RJ) organized to perform the monitoring and control of management contracts. These contracts were signed with private partners for the execution of health services in the state. The contract modalities approached were: 'Shared Management', represented by the contract signed between SES/RJ and a private company under Law no. 8.666 from June 21, 1993; and 'Social Health Organization (SHO) Management', which is a contract signed between SES/RJ and a SHO, under Law no. 6.043 from September 19, 2011. Regarding compliance with legal and regulatory milestone in relation to the control of management contracts, SES/RJ remodeled its internal organization creating new structures with that purpose. The urgency to implement new mechanisms of offering health assistance services to the state population impaired the evaluation and eventual measuring of transaction costs. Although management contracts generate the greatest public benefit, which is to offer high quality health services to the state population, the principle of efficiency expressed on Constitutional Amendment No. 19 dated 1998 must be pursued by the Public Administration. Considering Transaction Costs Economy, the hypothesis for this study is that the Public Power may incur in unknown losses due to SHO contracts governance structure if transaction costs are not measured. In order to evaluate this proposition, a comparison with the governance structure regarding Shared Management contracts is suggested. / Este estudo objetiva comparar as estruturas internas da Secretaria de Estado de Saúde do Rio de Janeiro (SES/RJ) organizadas para a execução do acompanhamento e controle de contratos de gestão firmados com parceiros privados para prestação de serviços de saúde no estado. As modalidades de contratação abordadas foram: 'Gestão Compartilhada', contratação entre a SES/RJ e empresa privada com base na Lei Nº 8.666 de 21 de junho de 1993 e 'Gestão por Organização Social de Saúde (OSS)', contratação entre a SES/RJ e OSS com base na Lei Nº 6.043 de 19 de setembro de 2011. Visando o cumprimento do marco legal no que tange ao controle dos contratos de gestão, a SES/RJ reformulou estruturas internas, instituindo novas instâncias de acompanhamento de contratos. A premência na implantação dos novos mecanismos de gestão assistencial para atendimento às necessidades de saúde da população fluminense prejudicou a avaliação e possível mensuração de custos de transação. Não obstante os contratos de gestão produzam o bem público maior, qual seja a oferta de serviços de saúde de qualidade à população fluminense, há que se considerar que a eficiência é um princípio expresso na Emenda Constitucional nº 19 de 1998 e deve ser perseguida pela Administração Pública. À luz da Teoria de Custos de Transação, a hipótese deste trabalho é que o Poder Público pode incorrer em perdas desconhecidas com a estrutura de governança de contratos com OSS, se custos de transação não forem mensurados. Para avaliar a pertinência da suposição, é proposta comparação com a estrutura de governança de contratos de Gestão Compartilhada.

A crescente onda de escândalos surgidos nos Estados Unidos na virada da década de 90, relacionados às demonstrações contábeis trouxeram uma importante mudança na ótica que se tinha dos controle internos. Podemos afirmar que 2002, com a promulgação da Sarbanes-Oxley Act transformou-se em um marco histórico dentro do âmbito empresarial americano, no que tange a controles internos, sendo o divisor de águas do que existia antes e depois em termos de forma de encarar a necessidade de as empresas possuírem uma estrutura de controles internos. Os controles internos passaram, sob o prisma de muitas empresas, de meros procedimentos de formalização de atividades e processos à condição de exigência legal. A nova Lei traz através da obrigatoriedade de apresentação de formulários específicos que devem ser assinados pelos altos representantes das empresas e a aplicação de sanções para quem não o faz ou faz de forma falsa, a conseqüente implementação de uma estrutura de controles internos que deverá ser monitorada, aperfeiçoada e enriquecida sempre que aparecer algum novo risco ou a empresa desenvolver uma operação. / The growing number of accounting scandals that have taken place in the USA at the turn of the 90's brought about an important change in how internal controls are understood. One could say that the Sarbanes-Oxley Act in 2002 was a landmark in the American corporate world as far as internal controls are concerned. It was a turning point in the way companies face the need for a structure of internal controls, which for many of them have changed from mere formalizing procedures to a legal requirement. This new law requires specific forms to be filled out which have to bear the signature of the company's top management. Forgery or failure to comply involves penalties. The new law makes it necessary to implement an internal controls structure which is to be monitored and improved whenever a new risk is at play or when the company has a new operation.

Master of Science / Geology / Saugata Datta / The province (upazila) of Matlab in SE Bangladesh is highly affected with elevated concentrations of dissolved As content and widespread fecal contamination in untreated drinking waters. The study area is sedimentologically composed of thick floodplain deposits of Holocene age overlying Plio-Pleistocene grey fine to coarse sands with considerable clays (consisting of Dupi Tila formation). The goal of the current study is to understand the possible impact of co-occurrence of dissolved organic carbon (along with As release) and fecal indicator bacteria (e.g., E.coli) in aquifers from shallow to deep groundwater quality in this area. Nineteen groundwater (spanning a depth range of 14 to 240 m) samples and nine surface water samples (eight ponds and one canal in proximity to the piezometer nests) were collected from four different piezometric nests within north and south Matlab Upazila in Bangladesh during the monsoonal season (Jun-Jul 2014). The analyses of dissolved organic carbon (DOC) and its fluorescence properties indicate that the chemical character of DOC from shallow to intermediate groundwaters (<150 m) and surface water is dominated by more aromatic and humic materials than deeper groundwaters. Both groundwaters and surface waters may receive humic substances leached from soil and/or from the cellular constituents and exudates of indigenous aquatic organisms. Dissolved organic carbons in groundwater and surface waters are composed of predominantly UVA and UVC-humic like along with tryptophan like components. Only 15% of total C is modern carbon at shallowest depths (<30 m) in groundwaters. The recharge source of groundwaters is from local precipitation, with or without some evaporation before infiltration as depicted by the δ2H and δ¹⁸O variations and the water is infiltrating through mostly terrestrially derived weathered sediments into the aquifers. The type of water in the study area is Ca-Na-HCO₃⁻ type. More toxic and soluble As (III) is present in shallow groundwaters (<30 m). High concentrations of As (V) and As[subscript (t)] are observed high in shallow and intermediate depth wells (<150 m). The most probable number based on the Colilert test and qPCR result for E.coli suggest that unprotected surface waters are harbingers for high microbial population compared to hand pumped wells. However, the very low observed concentrations of cultured E. coli (<1-10 MPN/100 mL) and E. coli DNA (<40 Copies/100 mL) in the wells indicates that the abundance of E.coli cells decrease rapidly with residence time in oligotrophic aquifers. Thus, it may be suggested that more humic DOC in shallow and intermediate groundwaters may be involved in complexation or other biogeochemical reactions that may mobilize As in groundwater. The non-indigenous bacteria can be the primary producers of DOC in the aquifers which can be utilizing surface derived DOC.

abstract: Regulatory agencies, such as the Occupational Safety and Health Administration (OSHA), and the National Institute of Occupational Safety and Health (NIOSH), recognize that decisions regarding occupational health are often economically driven, with worker health only a secondary concern (Ruttenberg, 2014). To investigate the four National Occupational Research Agenda (NORA) long-standing health concerns—welding fumes, crystalline silica, noise, and musculoskeletal disorders—a mixed methods research is conducted. Fourfold structuration, a holistic communication process with roots in indigenous/ancient knowledge, is used to organize data and facilitate making tangible relationships of health to productivity and profits that are abstract and often stated by industries, such as construction, as difficult to quantify. From both construction trade worker and occupational health and safety expert interviews data/codes are developed. For the qualitative method, the codes are organized into a constructivist grounded theory depicting the construction industry with regard to its foundation – profits. A theoretical exercise translating the qualitative codes into potential productivity losses is presented as a way for quantifying the abstract relationships of health to productivity. For the quantitative study, the data/codes are used to develop a comprehensive list of practices, barriers to, and catalysts for addressing health in construction. A significant quantitative finding is that occupational health and safety (OSH) experts are not traditionally involved at the highest levels of the OSHA Hierarchy of Controls, where the greatest opportunity to prevent exposure to health hazards is possible. Organized via a holistic framework, this research emphasizes our primary responsibility to each other as highlighted in recent NIOSH worker health agendas. / Dissertation/Thesis / Doctoral Dissertation Engineering 2017

Made available in DSpace on 2014-12-17T13:53:38Z (GMT). No. of bitstreams: 1 FrancivaldoSA_DISSERT.pdf: 1297901 bytes, checksum: edfe3cb82d55bdf4f50f96868b680d57 (MD5) Previous issue date: 2013-11-05 / The theme of this dissertation is social technology for self-management: a study in economic enterprise supportive of Rio Grande do Norte. The research aimed to obtain evidence that the reapplication of technology management, basic economic-financial and pricing, as production costs, has the potential to contribute to the self-management of APABV. The social technology and self-management are theoretical frameworks used and where workers are central figures in both the generation and replication of technologies that are compatible with their realities, as in the conduct and management approach adopted by them in their venture, they are makers decisions. To achieve the proposed objective was accomplished participatory research, which was used in addition to document analysis, participatory methodologies such as the construction of the DRP, group interview, experience in the production environment and family of entrepreneurs APABV. This research allowed the management technologies such as spreadsheets controls basic economic and financial costs, when socialized and understood by workers has the potential informational and become part of their daily decision-making process of the project, making up social technology / O tema desta disserta??o ? tecnologia social para autogest?o: um estudo em empreendimento econ?mico solid?rio do Rio Grande do Norte. A pesquisa teve como objetivo obter evid?ncias de que a reaplica??o de tecnologias de gest?o, de base econ?mico-financeira e da forma??o de pre?o, a partir dos custos de produ??o, tem o potencial de contribuir para a autogest?o da Associa??o dos Produtores Agr?colas de Bebida Velha (APABV). A tecnologia social e a autogest?o s?o referenciais te?ricos utilizados e nos quais os trabalhadores s?o figuras centrais, tanto na gera??o ou reaplica??o de tecnologias que sejam compat?veis com suas realidades, como na conduta e forma de gest?o adotada por eles em seu empreendimento, pois s?o os tomadores de decis?es. Para o alcance do objetivo proposto foi realizada pesquisa participante, na qual se utilizou al?m da an?lise documental, metodologias participativas como a constru??o do DRP, entrevista grupal, viv?ncia no ambiente produtivo e familiar dos empreendedores da APABV. A pesquisa possibilitou concluir que as tecnologias de gest?o, como as planilhas de controles de base econ?mico-financeiros e de custos de produ??o, quando socializadas e compreendidas pelos trabalhadores tem potencial informacional e passam a fazer parte de seu cotidiano no processo decis?rio do empreendimento, tornando-se tecnologia social

A crescente onda de escândalos surgidos nos Estados Unidos na virada da década de 90, relacionados às demonstrações contábeis trouxeram uma importante mudança na ótica que se tinha dos controle internos. Podemos afirmar que 2002, com a promulgação da Sarbanes-Oxley Act transformou-se em um marco histórico dentro do âmbito empresarial americano, no que tange a controles internos, sendo o divisor de águas do que existia antes e depois em termos de forma de encarar a necessidade de as empresas possuírem uma estrutura de controles internos. Os controles internos passaram, sob o prisma de muitas empresas, de meros procedimentos de formalização de atividades e processos à condição de exigência legal. A nova Lei traz através da obrigatoriedade de apresentação de formulários específicos que devem ser assinados pelos altos representantes das empresas e a aplicação de sanções para quem não o faz ou faz de forma falsa, a conseqüente implementação de uma estrutura de controles internos que deverá ser monitorada, aperfeiçoada e enriquecida sempre que aparecer algum novo risco ou a empresa desenvolver uma operação. / The growing number of accounting scandals that have taken place in the USA at the turn of the 90's brought about an important change in how internal controls are understood. One could say that the Sarbanes-Oxley Act in 2002 was a landmark in the American corporate world as far as internal controls are concerned. It was a turning point in the way companies face the need for a structure of internal controls, which for many of them have changed from mere formalizing procedures to a legal requirement. This new law requires specific forms to be filled out which have to bear the signature of the company's top management. Forgery or failure to comply involves penalties. The new law makes it necessary to implement an internal controls structure which is to be monitored and improved whenever a new risk is at play or when the company has a new operation.