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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.
1

Execution Time Control : A hardware accelerated Ada implementation with novel support for interrupt handling

Gregertsen, Kristoffer Nyborg January 2012 (has links)
Execution time control is a technique that allows execution time budgets to be set and overruns to be handled dynamically to prevent deadline misses. This removes the need for the worst-case execution time (WCET) of tasks to be found by offline timing analysis – a problem that can be very hard to solve for modern computer architectures. Execution time control can also increase the processor utilization, as the WCET will often be much higher than the average execution time. This thesis describes how the GNU Ada Compiler and a bare-board Ravenscar run-time environment were ported to the Atmel AVR32 UC3 microcontroller series making the Ada programming language available on this architecture for the first time, and an implementation of Ada execution time control for this system that supports full execution time control for interrupt handling. Usage patterns for this brand new feature are demonstrated in Ada by extending the object-oriented real-time framework with execution time servers for interrupt handling, allowing the system to be protected against unexpected bursts of interrupts that could otherwise result in deadline misses. Separate execution time measurement for interrupt handling also improves the accuracy of measurement for tasks. As a direct result of the work presented in this thesis separate execution time measurement for interrupts will be included in the forthcoming ISO-standard for Ada 2012. While the implementation of execution time control is for the Ada programming language and the UC3 microcontroller series, the design and implementation should be portable to other architectures, and the principles of execution time control for interrupt handling applicable to other programming languages. Low run-time overhead is important for execution time control to be useful for real-time systems. Therefore a hardware Time Management Unit (TMU) was designed to reduce the overhead of execution time control. This design has been implemented for the UC3 and performance tests with the developed run-time environment shows that it gives a significant reduction of overhead. The memory-mapped design of the TMU also allows it to be implemented on other architectures.
2

A divisão do poder político : do estado liberal ao estado contemporâneo

Bender, Geomar André January 2017 (has links)
O objetivo do presente trabalho é demonstrar as mudanças ocorridas ao longo do tempo no modo de dividir o poder político do Estado. Neste escopo, como condição preliminar, demonstramos os dois modos básicos de divisão do poder político: um, no sentido vertical, com a divisão do poder político entre entes jurídicos diversos; outro, no sentido horizontal, com a divisão do poder entre órgãos pertencentes a um mesmo ente jurídico. A dissertação centra-se na divisão horizontal, procurando apanhar os modos de divisão do poder desde a antiguidade até o Estado contemporâneo. Neste escopo é necessário examinar a forma como são entendidas as funções do Estado no curso do tempo e a forma de atribuição destas funções a diferentes órgãos. Da inexistência de uma autêntica divisão de poderes na antiguidade, passa-se por uma divisão tripartite no Estado Liberal e chega-se a uma divisão do poder entre, pelo menos, cinco diferentes órgãos no Estado contemporâneo. A par desta evolução e para demonstrar a necessidade de ampliar a tripartição do modelo do Estado liberal, procuramos examinar as transformações sociais que vão conduzindo à necessidade de crescente ampliação e especialização das funções do Estado a ensejar novas divisões do exercício do poder. Por outro lado, estas mesmas transformações sociais, além do aprofundamento da divisão do poder, vão exigindo uma mudança nas atribuições dos poderes, afetando sobremaneira a face do Executivo e do Legislativo. / The objective of this paper is to demonstrate the changes that have occurred over time in the way of dividing the political power of the state. In this scope, as a preliminary condition, we demonstrate the two basic means of dividing the political power: one, vertically, with the division of political power between various legal entities, another, horizontally, with the division of power between bodies belonging to the same legal entity. The dissertation focuses on the horizontal division, seeking to capture the ways of dividing power from antiquity to the contemporary state. In this scope, it is necessary to examine how the functions of the state are understood in the course of time and how these functions are attributed to different bodies. From the absence of an authentic division of powers in antiquity, to a tripartite division in the liberal state, arriving to a division of power between at least five different bodies in the contemporary state. Along with this evolution and to demonstrate the need to broaden the tripartite model of the liberal state, we seek to examine the social transformations that are leading to the need for a growing expansion and specialization of the functions of the state, giving rise to new divisions of the exercise of power. On the other hand, these same social transformations, in addition to deepening the division of power, require a change in the attributions of powers, greatly affecting the Executive and the Legislative branches.
3

A divisão do poder político : do estado liberal ao estado contemporâneo

Bender, Geomar André January 2017 (has links)
O objetivo do presente trabalho é demonstrar as mudanças ocorridas ao longo do tempo no modo de dividir o poder político do Estado. Neste escopo, como condição preliminar, demonstramos os dois modos básicos de divisão do poder político: um, no sentido vertical, com a divisão do poder político entre entes jurídicos diversos; outro, no sentido horizontal, com a divisão do poder entre órgãos pertencentes a um mesmo ente jurídico. A dissertação centra-se na divisão horizontal, procurando apanhar os modos de divisão do poder desde a antiguidade até o Estado contemporâneo. Neste escopo é necessário examinar a forma como são entendidas as funções do Estado no curso do tempo e a forma de atribuição destas funções a diferentes órgãos. Da inexistência de uma autêntica divisão de poderes na antiguidade, passa-se por uma divisão tripartite no Estado Liberal e chega-se a uma divisão do poder entre, pelo menos, cinco diferentes órgãos no Estado contemporâneo. A par desta evolução e para demonstrar a necessidade de ampliar a tripartição do modelo do Estado liberal, procuramos examinar as transformações sociais que vão conduzindo à necessidade de crescente ampliação e especialização das funções do Estado a ensejar novas divisões do exercício do poder. Por outro lado, estas mesmas transformações sociais, além do aprofundamento da divisão do poder, vão exigindo uma mudança nas atribuições dos poderes, afetando sobremaneira a face do Executivo e do Legislativo. / The objective of this paper is to demonstrate the changes that have occurred over time in the way of dividing the political power of the state. In this scope, as a preliminary condition, we demonstrate the two basic means of dividing the political power: one, vertically, with the division of political power between various legal entities, another, horizontally, with the division of power between bodies belonging to the same legal entity. The dissertation focuses on the horizontal division, seeking to capture the ways of dividing power from antiquity to the contemporary state. In this scope, it is necessary to examine how the functions of the state are understood in the course of time and how these functions are attributed to different bodies. From the absence of an authentic division of powers in antiquity, to a tripartite division in the liberal state, arriving to a division of power between at least five different bodies in the contemporary state. Along with this evolution and to demonstrate the need to broaden the tripartite model of the liberal state, we seek to examine the social transformations that are leading to the need for a growing expansion and specialization of the functions of the state, giving rise to new divisions of the exercise of power. On the other hand, these same social transformations, in addition to deepening the division of power, require a change in the attributions of powers, greatly affecting the Executive and the Legislative branches.
4

A divisão do poder político : do estado liberal ao estado contemporâneo

Bender, Geomar André January 2017 (has links)
O objetivo do presente trabalho é demonstrar as mudanças ocorridas ao longo do tempo no modo de dividir o poder político do Estado. Neste escopo, como condição preliminar, demonstramos os dois modos básicos de divisão do poder político: um, no sentido vertical, com a divisão do poder político entre entes jurídicos diversos; outro, no sentido horizontal, com a divisão do poder entre órgãos pertencentes a um mesmo ente jurídico. A dissertação centra-se na divisão horizontal, procurando apanhar os modos de divisão do poder desde a antiguidade até o Estado contemporâneo. Neste escopo é necessário examinar a forma como são entendidas as funções do Estado no curso do tempo e a forma de atribuição destas funções a diferentes órgãos. Da inexistência de uma autêntica divisão de poderes na antiguidade, passa-se por uma divisão tripartite no Estado Liberal e chega-se a uma divisão do poder entre, pelo menos, cinco diferentes órgãos no Estado contemporâneo. A par desta evolução e para demonstrar a necessidade de ampliar a tripartição do modelo do Estado liberal, procuramos examinar as transformações sociais que vão conduzindo à necessidade de crescente ampliação e especialização das funções do Estado a ensejar novas divisões do exercício do poder. Por outro lado, estas mesmas transformações sociais, além do aprofundamento da divisão do poder, vão exigindo uma mudança nas atribuições dos poderes, afetando sobremaneira a face do Executivo e do Legislativo. / The objective of this paper is to demonstrate the changes that have occurred over time in the way of dividing the political power of the state. In this scope, as a preliminary condition, we demonstrate the two basic means of dividing the political power: one, vertically, with the division of political power between various legal entities, another, horizontally, with the division of power between bodies belonging to the same legal entity. The dissertation focuses on the horizontal division, seeking to capture the ways of dividing power from antiquity to the contemporary state. In this scope, it is necessary to examine how the functions of the state are understood in the course of time and how these functions are attributed to different bodies. From the absence of an authentic division of powers in antiquity, to a tripartite division in the liberal state, arriving to a division of power between at least five different bodies in the contemporary state. Along with this evolution and to demonstrate the need to broaden the tripartite model of the liberal state, we seek to examine the social transformations that are leading to the need for a growing expansion and specialization of the functions of the state, giving rise to new divisions of the exercise of power. On the other hand, these same social transformations, in addition to deepening the division of power, require a change in the attributions of powers, greatly affecting the Executive and the Legislative branches.
5

Propuesta de un proceso de Planeamiento, Ejecución y Control de la Producción mediante herramientas de gestión por procesos con la finalidad de mejorar la productividad de las mypes del sector de uvas de mesa en la provincia de Ica

Carranza Duran, Juan Jose Sebastian, Cabrera Barrios, Yordi Heyse 28 January 2021 (has links)
El crecimiento económico disminuye el nivel de pobreza de un país. En Perú, la mayor concentración de empresas son mypes que generan empleabilidad en la población. Las mypes agrícolas enfrentan un gran problema que es la baja productividad. El sector de uvas en el Perú ha tenido un gran desarrollo en los indicadores como la producción y el área cosechada, pero el rendimiento es menor que otros países. Por ello, es fundamental realizar el diagnóstico respectivo para identificar las causas del problema de la zona. El diagnóstico se logró mediante entrevistas a profundidad a 53 productores de uvas en la provincia de Ica. En los primeros resultados se encontró que las actividades de producción se realizan en base a las experiencias que adquirieron de sus ancestros, lo que genera una baja productividad. Además, se tuvo que identificar los factores que afectan a 3 procesos relacionados con la gestión de calidad, planeamiento y control de la producción, y la gestión logística. La presente investigación propone diseñar un proceso de planeamiento, ejecución y control de la producción mediante las herramientas de gestión por procesos con la finalidad de incrementar la productividad de uvas en la provincia de Ica. / Economic growth lowers the poverty level of a country. In Peru, the highest concentration of companies are MSEs, which generate employability in the population. Agricultural MSEs have a big problem is low productivity. The grape sector in Peru has had a great development in indicators such a production and harvested area, but the yield is lower than other countries. Therefore, it is essential to carry out the corresponding study to identify the causes of the problem. The diagnosis was achieved through in-depth interviews with 53 grape growers in the province of Ica. In the first results, it was found that production activities are carried out based on the experiences they acquired from their ancestors, which generates low productivity. In addition, it was necessary to identify factors that affect three processes related to quality management, production planning and control, and logistics management. This research proposes to design a process for planning, executing and controlling production using process management tools in order to improve productivity. / Tesis

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