Energy system is important for classification of flation of developing countries. Function of energy system is supply electric power of high quality for every customers in system. Requirements of quality are different for individual countries. Reliability of electricity sector system is important parameter in every electricity systems. At the present time are the requirements of quality much higher, because of condition of liberalized market. Each country have different systems of standards of classification of reliability. Penalizations are assign to, when the systems of standards are overrun. Type of penalization is different for each countries. In my work I looked on system of electricity sector system, its reliability, operating, and organization etc. In principle for Czech Republic. Basic documents of electric legislation are described in this work, it is described for Czech Republic and for European Union. Public notice No. 540/2005 Sb. is described. This public notice interpret laws about supplies of electricity and others services in electricity sector system in Czech Republic. Penalizations are described in this public notice. Standards of penalizations are different for each European countries. Various monitoring of penalization are used. Also dividing of penalization is different for each country. At the last part of my work I analyze costs of penalization in required distribution network. Most reason of failure cause are analyzed here. Size of costs of penalization are compared in this part of my work, for changes of standards in required distribution networks. Required countries are Czech Republic, Great Britain and Spain. These countries are compare with each other. I evaluate the worst outlets of required distribution network. The worst outlets are outlets with higher costs of penalizations. These worst outlet I compare for required countries and between each other. At the end of my work I analyze failure causes for the worst outlets in penalization system of Czech Republic.

In the coverage of the Mayan Train in the Southeast of Mexico, national newspapers have either ignored Indigenous peoples as the main stakeholders affected by this project or portrayed them as victims and enemies of modernization. The purpose of this study is to analyse how the Mexican newspapers, La Jornada & Reforma, have omitted or ‘othered’ Indigenous communities in their coverage of the Mayan Train between March and June 2022. Fifteen articles from each newspaper were chosen to be analysed to show how most of them collectivize Indigenous peoples into a minority that is represented as ignorant and in need. The language used to describe Mayan pueblos in these articles reduces Indigeneity to ideas related to the past, poverty and violence, among other concepts which evidence an ideological disconnection between environmental issues and Indigenous concerns. These media omissions and language choices do not only contribute to the othering of the Mayan identity and individuality which are already threatened by this project, but to a racist and discriminatory treat against them. This thesis aims to bring up questions about the representation of Indigenous peoples in national news media articles, as well as to think about how the rebuilding of these could help influence public mindset to incorporate Indigenous communities in environmental concerns in Mexico.

This thesis highlighted how disinformation campaigns on social media platforms and news outlets were used as tools to influence Swedish public diplomacy. To accomplish this, it aimed to answer the following research question “How are disinformation campaigns, through social media platforms and news outlets, impacting Sweden’s public diplomacy?”. The thesis applied two case studies, the first being a domestic context consisting of the Swedish Social Services (SSS) and the Swedish Care of Young Persons (Special Provisions) Act (LVU), and the second an international context being Sweden applying for a NATO membership. The analysis utilized a sociotechnical approach interpreting newspaper article, social media posts, and reports that made up the empirical material. In addition, an analytical framework, divided into three thematic sections, was used for the analysis. The thematic sections consisted of 1) background of the case; 2) the disinformation campaigns that were conducted including the actors involved; 3) the Swedish public diplomatic response based on Joseph Nye’s theory about political power and public diplomacy. The thesis discovered that both the domestic and international context impacted Sweden’s public diplomacy, where the government and governmental agencies took measures that they previously had not. Furthermore, it discovered that news outlets and social platforms could not be viewed as two separate entities when conducting disinformation campaigns, but instead as an additional third entity. Lastly, the thesis found the two cases to be similar, despite their different contexts, as disinformation campaigns often build on previous rumors.

The South African fast-food industry is growing steadily, and so is the trend towards healthy eating. South Africans are becoming more aware of what they put into their bodies and not only do they want to consume meals that are quick and convenient, but they also want to ensure that what they are eating offers nutritional benefits. Although fast-food outlets have responded to customer demand by adding healthier food options to their menus, customer satisfaction regarding these options has not been investigated sufficiently in South Africa. The purpose of this study was to explore customer satisfaction with the healthier food options available at fast-food outlets in South Africa. An extensive literature review was conducted on the South African fast-food industry (the link between fast-food and obesity was noted, followed by a discussion on the trend towards healthy eating) and customer satisfaction. An empirical study was conducted, in which data was collected from students studying at the University of Pretoria by means of self-administered questionnaires. The study followed a mixed method approach, incorporating both qualitative and quantitative research in order to satisfy the research objectives. The results of this research study indicate that there is a high level of satisfaction amongst South African customers with the healthier food options available at fast-food outlets. / Business Management / M. Comm. (Business Management)

Des magasins d’usine accolés aux sites de fabrication apparus au début du XXe siècle jusqu’aux « villages » de marques actuels, le concept commercial a suivi différentes formes et l’évolution de leurs localisations rend compte d’un détachement des sites industriels au profit d’une logique territoriale « hors sol ». Ces facteurs mettent en lumière le passage d’un concept à l’origine industriel, devenu un produit commercialo-touristique. La naissance du concept puis sa « mise en tourisme » trouvent toutes deux leurs origines aux Etats-Unis. Leurs importations en Europe n’ont pas reproduit à l’identique la formule américaine mais ont suivi des modèles s’en inspirant de plus en plus fortement, notamment par le biais de la montée en puissance des opérateurs anglo-saxons qui figurent parmi les leaders incontestés du marché européen. L’annonce de projets de villages de marques suscite quasi-systématiquement de vives tensions entre leurs opposants et leurs défenseurs, révélant que les enjeux territoriaux liés à ces équipements sont nombreux. La multiplication des projets est notamment favorisée par une demande croissante des élus dans un contexte de mise en compétition des territoires. Cette situation, qui constitue une réelle opportunité pour les opérateurs, aboutit depuis peu à la création de partenariats public-privé destinés à tirer profit de la présence des centres de marques en favorisant les synergies avec leur territoire d’implantation, notamment en couplant le tourisme commercial avec d’autres types de tourisme. Cette thèse vise à mettre en lumière le développement et l’évolution du concept commercial en Europe ainsi que leurs implications en matière de nouveaux enjeux territoriaux. / From Factory Outlet shops located on manufacturing sites which appeared at the beginning of the 20th century to the current outlet “villages” today, this distinct retail concept has followed various forms in its evolution. There has been a detachment from locations on industrial sites for a strategic improvement creating, a new territorial logic which is targeted on an agglomeration of brands in modern purpose built buildings with good access and facilities. These factors show the evolution of a concept originally adjacent to a manufacturing base, it has become a distinct retail and tourist product. The birth of the retail concept and its “touristification” finds its origins in the United States. The import of which into Europe drew reference from the American formula but followed new models inspired by Anglo-Saxon developers who created a different style and they now appear among the uncontested leaders of the European market. However, the announcement of new outlet projects, even after 20 years still arouse quasi-systematically deep tensions between the opponents and the defenders of the concept, revealing that the territorial stakes of these centres are multiple. The increase of the number of projects is favoured in particular by an increasing demand of the elected representatives in a context of competition between territories. The current situation constitutes a real opportunity for developers, and it has recently involved the creation of public-private partnerships. Their intended goal is to benefit from the setting-up of outlet centres by favouring the positive elements within their territory, in particular by coupling retail tourism with other forms of leisure tourism. This research aims to study the development and the evolution of the outlet concept in Europe as well as their implications regarding new territorial stakes.

The South African fast-food industry is growing steadily, and so is the trend towards healthy eating. South Africans are becoming more aware of what they put into their bodies and not only do they want to consume meals that are quick and convenient, but they also want to ensure that what they are eating offers nutritional benefits. Although fast-food outlets have responded to customer demand by adding healthier food options to their menus, customer satisfaction regarding these options has not been investigated sufficiently in South Africa. The purpose of this study was to explore customer satisfaction with the healthier food options available at fast-food outlets in South Africa. An extensive literature review was conducted on the South African fast-food industry (the link between fast-food and obesity was noted, followed by a discussion on the trend towards healthy eating) and customer satisfaction. An empirical study was conducted, in which data was collected from students studying at the University of Pretoria by means of self-administered questionnaires. The study followed a mixed method approach, incorporating both qualitative and quantitative research in order to satisfy the research objectives. The results of this research study indicate that there is a high level of satisfaction amongst South African customers with the healthier food options available at fast-food outlets. / Business Management / M. Comm. (Business Management)

No description available.

<p>This is a thesis work proposed by Sweco System in order to carry out a study related to the heating system of a circular fuel oil storage tank or cistern. The study tank is a 23m diameter and 18m height with a storage capacity of around 7500m3 of Eo5 heavy fuel oil. The content ought to be at a minimum storage temperature of 50ºC so that the fuel oil is fluid enough and operation labors can be adequately performed. In fact, these types of heavy fuel oils have fairly high viscosities at lower temperatures and the heating and pumping system can be compromised at temperatures below the pour point. For this purpose a heating system is installed to maintain the fluid warm. So far the system was operated by an oil burner but there are plans to its replacement by a District Heating-heat exchanger combo. Thereby, tank heating needs, flow and thermal patterns and heat transfer within it are principally studied.</p><p> </p><p>Tank boundaries are studied and their thermal resistances are calculated in order to dimension heat supply capacity. The study implies Finite Elements (Comsol Multiphysics) and Finite Volume (Fluent) analysis to work out some stationary heat transfer by conduction cases on some parts and thermal bridges present on these boundaries. Afterwards both cooling and heating processes of the fuel oil are studied using several strategies: basic models and Computational Fluid Dynamics (CFD). CFD work with Fluent is focused on optimizing inlet and outlet topologies. Understanding the cooling process is sought as well; Fluent CFD transient models are simulated in this way as well. Additionally the effect of filling levels is taken into account leading to a multiphase (fuel oil and air) flow cases where especially heating coupling of both phases is analyzed.</p><p> </p><p>Results show that maximum heat supply needs are around 80kW when the tank temperature is around 60ºC and 70kW when it is around 50ºC. Expectedly the main characteristic of the flow turns out to be the buoyancy driven convective pattern. K-ε turbulence viscous models are applied to both heating and cooling processes showing thermal stratification, especially at the bottom of the tank. Hotter fluid above follows very complex flow patterns. During the heating processes models used predict fairly well mixed and homogenous temperature distribution regardless small stratification at the bottom of the tank. In this way no concrete inlet-outlet configuration shows clear advantages over the rest. Due to the insulation of the tank, low thermal conductivity of the fluid and vast amount of mass present in the tank, the cooling process is slow (fluid average temperature drops around 5.7 ºC from 60ºC in 15 days when the tank is full and ambient temperature is considered to be at -20ºC) and lies somewhere in the middle between the solid rigid and perfect mixture cooling processes. However, due to stratification some parts of the fluid reach minimum admissible temperatures much faster than average temperature does. On the other hand, as expected, air phase acts as an additional thermal resistance; anyhow the cooling process is still faster for lower filling levels than the full one.</p> / <p>El presente proyecto fue propuesto por Sweco Systems para llevar a cabo un estudio relacionado con el sistema de calefacción de una cisterna o tanque de almacenamiento de fuel oil circular. Dicho tanque tiene 23 m de diámetro  y 18 m de altura con una capacidad de almacenamiento de alrededor de 7500 m³ de Eo5 fuel oil pesado. El contenido mantenerse a una temperatura mínima de 50 ºC de manera que el fuel oil es suficientemente fluido para que las labores de operación puedan ser ejecutadas adecuadamente. De hecho, estos tipos de fuel oil pesado tienen altas viscosidades a bajas temperaturas y, por tanto, tanto los sistemas de calefacción y como el de bombeo pueden verse comprometidosr a temperaturas por debajo del pour point. Con este fin un sistema de calefacción es instalado para mantener el fluido suficientemente caliente. Hasta el momento, el sistema era operado por un quemador de fuel, sin embargo, hay planes que éste sea sustituido por un combo intercambiador de calor-District Heating. Por lo tanto, principalmente son estudiadas las necesidades de calefacción así como los flujos térmicos y fluidos.</p><p>Se estudian las fronteras del tanque, y sus respectivas resistencias térmicas son calculadas con el fin de dimensionar la capacidad necesaria de suministro de calor. El estudio implica Elementos Finitos (Comsol Multiphysics) y Volúmenes Finitos (Fluent) para elaborar análisis estacionarios de transferencia de calor por conducción en algunos casos. Existen puentes térmicos en las paredes y su importancia es también anallizada. Posteriormente se estudian tanto los procesos de calentamiento y enfriamiento del fuel oil utilizando diversas estrategias: modelos básicos y Dinámica de Fluidos Computacional (CFD). El trabajo con CFD se centra en la optimización de topologías de entradas y salidas del sistema. También es solicitado entender el proceso de enfriamiento; En este sentido, se simulan modelos CFD transitorios de Fluent. Además, el efecto de los niveles de llenado se tiene en cuenta dando lugar a estudios de flujo multifase (fuel oil y aire), haciendo hincapié en el análisis de acoplamiento de transferencia de calor entre las dos fases.</p><p>Los resultados muestran que las necesidades de calefacción máximas son de alrededor de 80kW cuando la temperatura del tanque es de alrededor de 60 º C y 70kW cuando está alrededor de 50 ºC. Como era de esperar, la principal característica de este tipo de flujos es la convección natural resultante de las fuerzas de flotabilidad. Se aplican modelos turbulentos k-ε a los procesos de calentamiento y enfriamiento, mostrando estratificación térmica, sobre todo en la parte inferior de la cisterna. El líquido más caliente que se sitúa encima muestra complejos patrones de flujo. Durante los procesos de calentamiento, los modelos utilizados predicen un buen mezclado y distribución homogénea de la temperatura independientemente de esta pequeña estratificación en la parte inferior de la cisterna. De esta manera, ninguna concreta configuración de entradas-salidas simuladas muestra claras ventajas sobre el resto. Debido al aislamiento de la cisterna, la baja conductividad térmica del fluido y la gran cantidad de masa presente en el tanque el proceso de enfriamiento es lento (la temperatura media del fluido desciende 5.7 º C desde 60 º C en 15 días cuando el tanque está lleno y la temperatura ambiente es de -20 º C) y se encuentra en algún lugar en medio de los procesos de enfriamiento del sólido rígido y perfecta mezcla. Sin embargo, debido a la estratificación, algunas partes el líquido alcanzan la temperatura mínima admisible mucho más rápido que la media de temperatura. Por otra parte, como se esperaba, la fase de aire actúa como una resistencia térmica adicional, de todos modos, el proceso de enfriamiento es aún más rápido para niveles de llenado más bajos que el lleno.</p>

This is a thesis work proposed by Sweco System in order to carry out a study related to the heating system of a circular fuel oil storage tank or cistern. The study tank is a 23m diameter and 18m height with a storage capacity of around 7500m3 of Eo5 heavy fuel oil. The content ought to be at a minimum storage temperature of 50ºC so that the fuel oil is fluid enough and operation labors can be adequately performed. In fact, these types of heavy fuel oils have fairly high viscosities at lower temperatures and the heating and pumping system can be compromised at temperatures below the pour point. For this purpose a heating system is installed to maintain the fluid warm. So far the system was operated by an oil burner but there are plans to its replacement by a District Heating-heat exchanger combo. Thereby, tank heating needs, flow and thermal patterns and heat transfer within it are principally studied.   Tank boundaries are studied and their thermal resistances are calculated in order to dimension heat supply capacity. The study implies Finite Elements (Comsol Multiphysics) and Finite Volume (Fluent) analysis to work out some stationary heat transfer by conduction cases on some parts and thermal bridges present on these boundaries. Afterwards both cooling and heating processes of the fuel oil are studied using several strategies: basic models and Computational Fluid Dynamics (CFD). CFD work with Fluent is focused on optimizing inlet and outlet topologies. Understanding the cooling process is sought as well; Fluent CFD transient models are simulated in this way as well. Additionally the effect of filling levels is taken into account leading to a multiphase (fuel oil and air) flow cases where especially heating coupling of both phases is analyzed.   Results show that maximum heat supply needs are around 80kW when the tank temperature is around 60ºC and 70kW when it is around 50ºC. Expectedly the main characteristic of the flow turns out to be the buoyancy driven convective pattern. K-ε turbulence viscous models are applied to both heating and cooling processes showing thermal stratification, especially at the bottom of the tank. Hotter fluid above follows very complex flow patterns. During the heating processes models used predict fairly well mixed and homogenous temperature distribution regardless small stratification at the bottom of the tank. In this way no concrete inlet-outlet configuration shows clear advantages over the rest. Due to the insulation of the tank, low thermal conductivity of the fluid and vast amount of mass present in the tank, the cooling process is slow (fluid average temperature drops around 5.7 ºC from 60ºC in 15 days when the tank is full and ambient temperature is considered to be at -20ºC) and lies somewhere in the middle between the solid rigid and perfect mixture cooling processes. However, due to stratification some parts of the fluid reach minimum admissible temperatures much faster than average temperature does. On the other hand, as expected, air phase acts as an additional thermal resistance; anyhow the cooling process is still faster for lower filling levels than the full one. / El presente proyecto fue propuesto por Sweco Systems para llevar a cabo un estudio relacionado con el sistema de calefacción de una cisterna o tanque de almacenamiento de fuel oil circular. Dicho tanque tiene 23 m de diámetro  y 18 m de altura con una capacidad de almacenamiento de alrededor de 7500 m3 de Eo5 fuel oil pesado. El contenido mantenerse a una temperatura mínima de 50 ºC de manera que el fuel oil es suficientemente fluido para que las labores de operación puedan ser ejecutadas adecuadamente. De hecho, estos tipos de fuel oil pesado tienen altas viscosidades a bajas temperaturas y, por tanto, tanto los sistemas de calefacción y como el de bombeo pueden verse comprometidosr a temperaturas por debajo del pour point. Con este fin un sistema de calefacción es instalado para mantener el fluido suficientemente caliente. Hasta el momento, el sistema era operado por un quemador de fuel, sin embargo, hay planes que éste sea sustituido por un combo intercambiador de calor-District Heating. Por lo tanto, principalmente son estudiadas las necesidades de calefacción así como los flujos térmicos y fluidos. Se estudian las fronteras del tanque, y sus respectivas resistencias térmicas son calculadas con el fin de dimensionar la capacidad necesaria de suministro de calor. El estudio implica Elementos Finitos (Comsol Multiphysics) y Volúmenes Finitos (Fluent) para elaborar análisis estacionarios de transferencia de calor por conducción en algunos casos. Existen puentes térmicos en las paredes y su importancia es también anallizada. Posteriormente se estudian tanto los procesos de calentamiento y enfriamiento del fuel oil utilizando diversas estrategias: modelos básicos y Dinámica de Fluidos Computacional (CFD). El trabajo con CFD se centra en la optimización de topologías de entradas y salidas del sistema. También es solicitado entender el proceso de enfriamiento; En este sentido, se simulan modelos CFD transitorios de Fluent. Además, el efecto de los niveles de llenado se tiene en cuenta dando lugar a estudios de flujo multifase (fuel oil y aire), haciendo hincapié en el análisis de acoplamiento de transferencia de calor entre las dos fases. Los resultados muestran que las necesidades de calefacción máximas son de alrededor de 80kW cuando la temperatura del tanque es de alrededor de 60 º C y 70kW cuando está alrededor de 50 ºC. Como era de esperar, la principal característica de este tipo de flujos es la convección natural resultante de las fuerzas de flotabilidad. Se aplican modelos turbulentos k-ε a los procesos de calentamiento y enfriamiento, mostrando estratificación térmica, sobre todo en la parte inferior de la cisterna. El líquido más caliente que se sitúa encima muestra complejos patrones de flujo. Durante los procesos de calentamiento, los modelos utilizados predicen un buen mezclado y distribución homogénea de la temperatura independientemente de esta pequeña estratificación en la parte inferior de la cisterna. De esta manera, ninguna concreta configuración de entradas-salidas simuladas muestra claras ventajas sobre el resto. Debido al aislamiento de la cisterna, la baja conductividad térmica del fluido y la gran cantidad de masa presente en el tanque el proceso de enfriamiento es lento (la temperatura media del fluido desciende 5.7 º C desde 60 º C en 15 días cuando el tanque está lleno y la temperatura ambiente es de -20 º C) y se encuentra en algún lugar en medio de los procesos de enfriamiento del sólido rígido y perfecta mezcla. Sin embargo, debido a la estratificación, algunas partes el líquido alcanzan la temperatura mínima admisible mucho más rápido que la media de temperatura. Por otra parte, como se esperaba, la fase de aire actúa como una resistencia térmica adicional, de todos modos, el proceso de enfriamiento es aún más rápido para niveles de llenado más bajos que el lleno.

Indiana University-Purdue University Indianapolis (IUPUI) / The objective of this research is to examine the development of the California alcohol outlets over time and the relationship between neighborhood characteristics and densities of the alcohol outlets. Two types of advanced analyses were done after the usual preliminary description of data. Firstly, fixed and random effects linear regression were used for the county panel data across time (1945-2010) with a dummy variable added to capture the change in law regarding limitations on alcohol outlets density. Secondly, a Bayesian spatio-temporal Poisson regression of the census tract panel data was conducted to capture recent availability of population characteristics affecting outlet density. The spatial Conditional Autoregressive model was embedded in the Poisson regression to detect spatial dependency of unexplained variance of alcohol outlet density. The results show that the alcohol outlets density reduced under the limitation law over time. However, it was no more effective in reducing the growth of alcohol outlets after the limitation was modified to be more restrictive. Poorer, higher vacancy rate and lower percentage of Black neighborhoods tend to have higher alcohol outlet density (numbers of alcohol outlets to population ratio) for both on-sale general and off-sale general. Other characteristics like percentage of Hispanics, percentage of Asians, percentage of younger population and median income of adjacency neighbors were associated with densities of on-sale general and off sale general alcohol outlets. Some regions like the San Francisco Bay area and the Greater Los Angeles area have more alcohol outlets than the predictions of neighborhood characteristics included in the model.