A priorização da implantação de usinas hidrelétricas no Brasil deve-se, primordialmente, ao vasto potencial hidrelétrico existente no país e à competitividade econômica que esta fonte apresenta. PPara atender à crescente demanda, foram implantados ao longo dos anos, diversos empreendimentos hidrelétricos por todo o país. Apesar do inequívoco sucesso quanto ao objetivo central de tais empreendimentos - fornecer energia para o desenvolvimento econômico tais empreendimentos causam impactos com diferentes níveis de severidade aos sistemas físico-biótico, sócio-econômico e cultural das regiões em que as instalações são realizadas. O presente trabalho objetivou identificar problemas e impactos ambientais nos ecossistemas aquáticos do Rio Tocantins relacionados com o desenvolvimento do seu potencial hidroelétrico, de forma a contribuir com a compatibilização de geração de energia e conservação da biodiversidade e manutenção dos fluxos gênicos. O cenário considerado contemplou os empreendimentos em operação e aqueles em instalação, com estudos de viabilidade aprovados e licenças prévias obtidas. A metodologia de Análise de Cadeia Causal (ACC) foi utilizada para que a partir da identificação dos problemas e impactos ambientais prioritários, a relação dos mesmos com diferentes causas imediatas, setoriais e raízes pudesse ser estabelecida. A hierarquização dos impactos foi feita através de matriz de caracterização, tendo as comunidades íctias como principais indicadores. Os impactos considerados como mais relevantes foram: (i) queda na qualidade dos recursos hídricos, (ii) perda e alteração de habitats, (iii) mudanças na estabilidade dos ecossistemas, (iv) redução de recursos pesqueiros, (v) interferência com as comunidades de bentos e de microorganismos, (vi) alteração nas cadeias alimentares e (vii) interferência na dispersão de comunidades íctias e de mamíferos. O conhecimento sobre a biodiversidade existente e a identificação dos principais impactos existentes e em potencial nos ecossistemas aquáticos do Rio Tocantins, representam um passo importante para o desenvolvimento de opções políticas eficazes com vistas à minimização da degradação ambiental decorrente do setor hidroelétrico. / The priority given to the construction of hydropower plants in Brazil is mostly due to the large hydroelectric potential available in the country and the economic advantages that this energy source presents. In order to meet the increasing demand, during the years many plants have been constructed allover the country. Regardless the obvious success concerning the main objective of such facilities to supply energy for economic development these plants have caused environmental and social impacts with different levels of severity to the aquatic ecosystems and the human communities living in the region. The objective of this work was to identify environmental problems and impacts to the aquatic ecosystems in Tocantins River related to the development of its hydropower potential in order to contribute to the target of making compatible energy generation and biodiversity protection.. The scenario considered included those powerplant in operation and those to be constructed, with feasibility studies and environmental licenses already approved. The Causal Chain Analysis methodology was used, in order to starting with the main environmental problems, to be able to identify the environmental impacts and their immediate, sectoral and root causes. The impacts were ranked according to the characterization matrix, having the fish communities as the main indicators. The impacts considered the most relevant were: (i) degradation of water resources, (ii) loss and changes in habitats, (iii) changes in the ecosystems stability, (iv) reduction of fish stocks, (v) interference with benthic communitites and microorganisms populations, (vi) changes in the food-chain and (vii) interference with the dispersion of fishes and mammals. The knowledge about the existing biodiversity and the identification of the main existing and potential impacts on the aquatic ecosystems of Tocantins River represents an important step for development of effective policy options to minimize the environmental degradation associated to the electric sector.

A priorização da implantação de usinas hidrelétricas no Brasil deve-se, primordialmente, ao vasto potencial hidrelétrico existente no país e à competitividade econômica que esta fonte apresenta. PPara atender à crescente demanda, foram implantados ao longo dos anos, diversos empreendimentos hidrelétricos por todo o país. Apesar do inequívoco sucesso quanto ao objetivo central de tais empreendimentos - fornecer energia para o desenvolvimento econômico tais empreendimentos causam impactos com diferentes níveis de severidade aos sistemas físico-biótico, sócio-econômico e cultural das regiões em que as instalações são realizadas. O presente trabalho objetivou identificar problemas e impactos ambientais nos ecossistemas aquáticos do Rio Tocantins relacionados com o desenvolvimento do seu potencial hidroelétrico, de forma a contribuir com a compatibilização de geração de energia e conservação da biodiversidade e manutenção dos fluxos gênicos. O cenário considerado contemplou os empreendimentos em operação e aqueles em instalação, com estudos de viabilidade aprovados e licenças prévias obtidas. A metodologia de Análise de Cadeia Causal (ACC) foi utilizada para que a partir da identificação dos problemas e impactos ambientais prioritários, a relação dos mesmos com diferentes causas imediatas, setoriais e raízes pudesse ser estabelecida. A hierarquização dos impactos foi feita através de matriz de caracterização, tendo as comunidades íctias como principais indicadores. Os impactos considerados como mais relevantes foram: (i) queda na qualidade dos recursos hídricos, (ii) perda e alteração de habitats, (iii) mudanças na estabilidade dos ecossistemas, (iv) redução de recursos pesqueiros, (v) interferência com as comunidades de bentos e de microorganismos, (vi) alteração nas cadeias alimentares e (vii) interferência na dispersão de comunidades íctias e de mamíferos. O conhecimento sobre a biodiversidade existente e a identificação dos principais impactos existentes e em potencial nos ecossistemas aquáticos do Rio Tocantins, representam um passo importante para o desenvolvimento de opções políticas eficazes com vistas à minimização da degradação ambiental decorrente do setor hidroelétrico. / The priority given to the construction of hydropower plants in Brazil is mostly due to the large hydroelectric potential available in the country and the economic advantages that this energy source presents. In order to meet the increasing demand, during the years many plants have been constructed allover the country. Regardless the obvious success concerning the main objective of such facilities to supply energy for economic development these plants have caused environmental and social impacts with different levels of severity to the aquatic ecosystems and the human communities living in the region. The objective of this work was to identify environmental problems and impacts to the aquatic ecosystems in Tocantins River related to the development of its hydropower potential in order to contribute to the target of making compatible energy generation and biodiversity protection.. The scenario considered included those powerplant in operation and those to be constructed, with feasibility studies and environmental licenses already approved. The Causal Chain Analysis methodology was used, in order to starting with the main environmental problems, to be able to identify the environmental impacts and their immediate, sectoral and root causes. The impacts were ranked according to the characterization matrix, having the fish communities as the main indicators. The impacts considered the most relevant were: (i) degradation of water resources, (ii) loss and changes in habitats, (iii) changes in the ecosystems stability, (iv) reduction of fish stocks, (v) interference with benthic communitites and microorganisms populations, (vi) changes in the food-chain and (vii) interference with the dispersion of fishes and mammals. The knowledge about the existing biodiversity and the identification of the main existing and potential impacts on the aquatic ecosystems of Tocantins River represents an important step for development of effective policy options to minimize the environmental degradation associated to the electric sector.

The aim of this diploma thesis is creation of competitive strategy of business company. The thesis analyses current state of company, its subject of enterprise is sale of replacement parts and equipment for agricultural machinery. It analyses influence of the external and internal environment on the company. Further was made the marketing research. The strategic targets are determined from the obtained data. The thesis contains proposal of competitive strategy and its time schedule.

En hållbar utveckling är kritiskt för att kommande generationer ska kunna leva på vår jord med liknande möjligheter som vi har idag. Att arbeta med hållbarhet är viktigt för såväl privatpersoner som företag. För att säkerställa en mer hållbar utveckling har Europeiska Unionen tagit fram direktiv som sätter krav på större företag att redovisa sitt hållbarhetsarbete. I Sverige ingår detta direktiv i Årsredovisningslagen som ställer krav på hållbarhetsrapportering från större företag.Syftet i denna uppsats är att utreda om Ur &amp; Penn, ett stort företag inom klock- och smyckesbranschen har en hållbarhetsrapport i sin årsredovisning som fyller de krav Årsredovisningslagen ställer. Datainsamlingen som används om företaget kommer från offentliga källor samt empiriskt kunskapsinsamlande från den inblick en får genom att arbeta inom företaget. Företagets hållbarhetsrapport för räkenskapsår 2017-2018 har utretts och i resultatet fastställs det att hållbarhetsrapporten inte lever upp till de krav som Årsredovisningslagen ställer. Global Reporting Initiative används som mall för att ge förslag på förbättrad hållbarhetsredovisning.En värdekedjeanalys görs av ett armbandsur i rostfritt stål för att se vilken miljöpåverkan en populär produkt från företaget har och utifrån detta görs en SWOT-analys för att ta fram strategier som företaget kan använda till sitt hållbarhetsarbete. Den miljöpåverkan som värdekedjeanalysen fastställer kopplas till Det naturliga steget som belyser att produktionen av rostfritt stål har stor påverkan på miljön och att det arbetssätt som finns inom företaget bidrar till en icke hållbar värld.Slutsatsen i denna uppsats är att företaget inte lever upp till de krav som Årsredovisningslagen ställer gällande hållbarhetsrapportering. Företagets produkt och arbetssätt är inte hållbara och om företaget vill säkra en framtid på en marknad som blir allt mer hållbarhetsfokuserad behöver företaget arbeta mer med hållbarhet. / Sustainable development is crucial for future generations ability to live on this planet with similar opportunities as we do today. To work with sustainability is important for the individual person as well as companies. The European Union has developed directives that require big companies to account for their work with sustainability, this is to ensure a more sustainable development in the union. This directive is a part of the Annual Accounts Act in Sweden, and it requires that bigger companies have a report on their sustainability work.The purpose of this essay is to investigate if a big company within the watch- and jewelry industry have a sustainability report that meet the requirements of the Annual Accounts Act. The information that is used about the company is from public sources as well as personal experiences from the author that has worked within the company. The company's sustainability report for the financial year 2017-2018 does not meet the requirements. Global Reporting Initiative is used as a guide to give suggestions on improving the report.A value chain analysis is made for a wristwatch made of stainless steel to see which environmental impact a popular product from the company has. A SWOT-analysis is made based of the value chain to illustrate strategies that the company can use with its sustainability work. The environmental impact that the value chain determine is linked to The natural step which proves that the production of stainless steel has a big impact on the environment and that the working model within the company is contributing to an unsustainable world.The conclusion of the essay is that this company does not live up to the requirements that the Annual Accounts Act have regarding sustainability reports. The product from the company and their working model is not sustainable and if the company wants to ensure a future on a market that is becoming more focused on sustainability; they need to work more with sustainability. / <p>2021-11-26</p>

Transforming the aging electric grid to a smart grid is an active area of research in industry and the government. One of the main objectives of the smart grid is to improve the efficiency of power generation, transmission and distribution and also to improve the stability and the reliability of the grid. In order to achieve this, various processes involved in power generation, transmission, and distribution should be armed with advanced sensor technologies, computing, communication and networking capabilities to an unprecedented level. These high speed data transfer and computational abilities aid power system engineers to obtain wide area measurements, achieve better control of power system operations and improve the reliability of power supply and the efficiency of different power grid operations. In the process of making the grid smarter, problems existing in traditional grid applications can be identified and solutions have to be developed to fix the identified issues. In this dissertation, two problems that aid power system engineers to meet the above mentioned smart grid's objective are researched. One problem is related to the distribution-side smart grid and the other one is a part of the transmission-side smart grid. Advanced Metering Infrastructure (AMI) is one of the important distribution-side smart grid applications. AMI is a technology where smart meters are installed at customer site which gives the utilities the ability to monitor and collect information related to the amount of electricity, water, and gas consumed by the user. Many recent research studies suggested the use of 3G cellular CDMA2000 for AMI network as it provides an advanced and cost effective solution for smart grid communications. Taking into account both technical and non-technical factors such as extended lifetime, security, availability and control of the solution, Alliander, an electric utility in Netherlands deployed a private 3G CDMA2000 network for smart metering. Although 3G CDMA2000 satisfies the requirements of smart grid applications, an analysis on the use of the current state of the art 3G CDMA2000 for smart grid applications indicates that its usage results in high percentage of control overhead, high latency and high power consumption for data transfer. As a part of this dissertation, we proposed FLEX-MAC - a new Medium Access Control (MAC) protocol that reduces the latency and overhead in smart meter data collection when compared to 3G CDMA2000 MAC. As mentioned above the second problem studied in this dissertation is related to the transmission-side grid. Power grid transmission and sub-transmission lines are generally protected by distance relays. After a thorough analysis of U.S. historical blackouts, North American Electric Reliability Council (NERC) has concluded that the hidden failure induced tripping of distance relays is responsible for 70% of the U.S. blackouts. As a part of this dissertation, agent based distance relaying protection scheme is proposed to improve the robustness of distance relays to hidden failures and thus reduce the probability of blackouts. This dissertation has two major contributions. First, a hierarchically distributed non-intrusive Agent Aided Distance Relaying Protection Scheme (AADRPS) is proposed to improve the robustness of distance relays to hidden failures. The problem of adapting the proposed AADRPS to a larger power system network consisting of thousands of buses is modeled as an integer linear programming multiple facility location optimization problem. Distance relaying protection scheme is a real time system and has stringent timing requirements. Therefore, in order to verify if the proposed AADRPS meets the timing requirements or not and also to check for deadlocks, verification models based on UPPAAL real time model checker are provided in this dissertation. So, the entire framework consisting of AADRPS that aids in increasing the robustness of distance relays and reducing the possibility of blackouts, the multiple facility location optimization models and the UPPAAL real time model checker verification models form one of the major contributions of this dissertation. The second contribution is related to the MAC layer of AMI networks. In this dissertation, FLEX-MAC - a novel and flexible MAC protocol is proposed to reduce the overhead and latency in smart meter data collection. The novelty of the FLEX-MAC lies in its ability to change the mode of operation based on the type of the data being collected in a smart meter network. FLEX-MAC employs Frame and Channel Reserved (FCR) MAC or Frame Reserved and Random Channel (FRRC) MAC for scheduled data collection. Power outage data in an AMI network is considered as a random data . In a densely populated area, during an outage, a large number of smart meters attempt to report the outage, which significantly increases the Random Access CHannel (RACH) load. In order to reduce the RACH traffic during an outage, this dissertation proposes a Time Hierarchical Scheme (THS). Also, in order to minimize the total time to collect the power outage data, a Backward Recursive Dynamic Programming (BRDP) approach is proposed to adapt the transmission rate of smart meters reporting an outage. Both the Optimal Transmission Rate Adaption and Time Hierarchical Scheme form the basis of OTRA-THS MAC which is employed by FLEX-MAC for random data collection. Additionally, in this work, Markov chain models are presented for evaluating the performance of FCR and FRRC MACs in terms of average throughput and delay. Also, another Markov model is presented to find the mean time to absorption or mean time to collect power outage data of OTRA-TH MAC during an outage. / Ph. D.

The goal of thesis is to make external and internal analysis of Kores Praha, spol. s r.o., then evaluate its results and suggest recommendations for the creation of strategy.

本研究以筆記型電腦產業為例，比較研究台灣與日本兩地的電腦產業結構、廠商之經營型態而合作關係。並且由五力分析、SWOT分析、價值鏈分析為分析工具。在五力分析的部分，從供應商、消費者、同業競爭者、潛在競爭者、替代品的構面，來探討台灣與日本廠商在面臨的因素，均衡狀態，配合環境的變動性發展前景等。皆下來在SWOT分析裡面找出整個筆記型電腦產業擁有的優勢、劣勢、機會而威脅，更深入瞭解台灣與日本廠商的現況，在該產業裡為了維持擁有競爭優勢，導出各產業要強化、改善的途徑。在價值鏈分析部分，引用台灣與日本之主要廠商的最近經營型態來舉例，仔細地瞭解而比較兩國廠商的經營方式。最後，並配合各分析的結果，直接進行訪問日台主要筆記型電腦廠商，經由深度訪談與深度蒐集研究的方式，套入產業結構之理論架構，會使得個案之研究更具完備性，找出未來台灣與日本筆記型電腦廠商間的合作關係。 因為筆記型電腦產業的變化非常快，五力、SWOT、價值鏈分析中的結構也隨著有變。本研究將環境之變化導入討論之中，使得產業研究更具動態的時效性，而盡量引用日本與台灣兩地的2000年第一季最新的資料，使得該研究具備動態效果。

Tato diplomová práce se zabývá strategickým rozvojem konkurenceschopnosti podniku působící v outdoorovém byznysu. Cílem práce je provést celkovou analýzu Recreational Equipment, Inc. V úvodní části bude vymezen teoretický základ strategické analýzy s využitím odborné literatury, který bude aplikován v praktické části na konkrétní podnik. Za použití metod pro analýzu vnějšího a vnitřního prostředí, PEST analýza a Porterova modelu pěti sil, budou zjištěny faktory, které mají vliv na konkurenceschopnost podniku. Tato zjištění vyústí ve SWOT analýzu, ze které vzejdou strategická doporučení pro top management podniku.

On s'intéresse à l'étude d'algorithmes stochastiques pour l'optimisation numérique boîte-noire. Dans la première partie de cette thèse, on présente une méthodologie pour évaluer efficacement des stratégies d'adaptation du step-size dans le cas de l'optimisation boîte-noire sans contraintes. Le step-size est un paramètre important dans les algorithmes évolutionnaires tels que les stratégies d'évolution; il contrôle la diversité de la population et, de ce fait, joue un rôle déterminant dans la convergence de l'algorithme. On présente aussi les résultats empiriques de la comparaison de trois méthodes d'adaptation du step-size. Ces algorithmes sont testés sur le testbed BBOB (black-box optimization benchmarking) de la plateforme COCO (comparing continuous optimisers). Dans la deuxième partie de cette thèse, sont présentées nos contributions dans le domaine de l'optimisation boîte-noire avec contraintes. On analyse la convergence linéaire d'algorithmes stochastiques adaptatifs pour l'optimisation sous contraintes dans le cas de contraintes linéaires, gérées avec une approche Lagrangien augmenté adaptative. Pour ce faire, on étend l'analyse par chaines de Markov faite dans le cas d'optimisation sans contraintes au cas avec contraintes: pour chaque algorithme étudié, on exhibe une classe de fonctions pour laquelle il existe une chaine de Markov homogène telle que la stabilité de cette dernière implique la convergence linéaire de l'algorithme. La convergence linéaire est déduite en appliquant une loi des grands nombres pour les chaines de Markov, sous l'hypothèse de la stabilité. Dans notre cas, la stabilité est validée empiriquement. / We investigate various aspects of adaptive randomized (or stochastic) algorithms for both constrained and unconstrained black-box continuous optimization. The first part of this thesis focuses on step-size adaptation in unconstrained optimization. We first present a methodology for assessing efficiently a step-size adaptation mechanism that consists in testing a given algorithm on a minimal set of functions, each reflecting a particular difficulty that an efficient step-size adaptation algorithm should overcome. We then benchmark two step-size adaptation mechanisms on the well-known BBOB noiseless testbed and compare their performance to the one of the state-of-the-art evolution strategy (ES), CMA-ES, with cumulative step-size adaptation. In the second part of this thesis, we investigate linear convergence of a (1 + 1)-ES and a general step-size adaptive randomized algorithm on a linearly constrained optimization problem, where an adaptive augmented Lagrangian approach is used to handle the constraints. To that end, we extend the Markov chain approach used to analyze randomized algorithms for unconstrained optimization to the constrained case. We prove that when the augmented Lagrangian associated to the problem, centered at the optimum and the corresponding Lagrange multipliers, is positive homogeneous of degree 2, then for algorithms enjoying some invariance properties, there exists an underlying homogeneous Markov chain whose stability (typically positivity and Harris-recurrence) leads to linear convergence to both the optimum and the corresponding Lagrange multipliers. We deduce linear convergence under the aforementioned stability assumptions by applying a law of large numbers for Markov chains. We also present a general framework to design an augmented-Lagrangian-based adaptive randomized algorithm for constrained optimization, from an adaptive randomized algorithm for unconstrained optimization.

This Master’s thesis analyses the current status of the small selling company, which sells sport articles. The thesis investigates impact extenrnal environment on the firm and also analyse internal environment. It defines strategic targets, contains propsal of competitive strategy of the company and its time implementation.