Le trafic aérien en Europe représente environ 30 000 vols quotidiens actuellement. Selon les prévisions de l’organisme Eurocontrol, ce trafic devrait croître de 70% d’ici l’année 2020 pour atteindre 50 000 vols quotidiens. L’espace aérien, découpé en zones géographiques appelées secteurs de contrôle, atteindra bientôt son niveau de saturation vis-à-vis des méthodes actuelles de planification et de contrôle. Afin d’augmenter la quantité de trafic que peut absorber le système, il est nécessaire de diminuer la charge de travail des contrôleurs aériens en les aidant dans leur tâche de séparation des avions. En se fondant sur les demandes de plans de vol des compagnies aériennes, nous proposons une méthode de planification des trajectoires en 4D permettant de présenter au contrôleur un trafic dont la plupart des conflits auront été évités en avance. Cette planification s’établit en deux étapes successives, ayant chacune un unique degré de liberté : une allocation de niveaux de vol permettant la résolution des conflits en croisière puis une allocation d’heures de décollage permettant de résoudre les conflits restants. Nous présentons des modèles pour ces deux problèmes d’optimisation fortement combinatoires, que nous résolvons en utilisant la programmation par contraintes ou les algorithmes évolutionnaires, ainsi que des techniques permettant de prendre en compte des incertitudes sur les heures de décollage ou le suivi de trajectoire. Les simulations conduites sur l’espace aérien français mènent à des situations où tous les conflits sont évités, avec des retards alloués de l’ordre d’une minute en moyenne (80 à 90 minutes pour le vol le plus retardé) et un écart par rapport à l’altitude optimale limité à un niveau de vol pour la quasi totalité des vols. La prise en compte d’incertitudes de manière statique dégrade fortement ces solutions peu robustes, mais nous proposons un modèle dynamique utilisant une fenêtre glissante susceptible de prendre en compte des incertitudes de quelques minutes avec un impact réduit sur le coût de l’allocation. / Air traffic in Europe represents about 30,000 flights each day and forecasts from Eurocontrol predict a growth of 70% by 2020 (50,000 flights per day). The airspace, made up of numerous control sectors, will soon be saturated given the current planification and control methods. In order to make the system able to cope with the predicted traffic growth, the air traffic controllers workload has to be reduced by automated systems that help them handle the aircraft separation task. Based on the traffic demand by airlines, this study proposes a new planning method for 4D trajectories that provides conflict-free traffic to the controller. This planning method consists of two successive steps, each handling a unique flight parameter : a flight level allocation phase followed by a ground holding scheme.We present constraint programming models and an evolutionary algorithm to solve these large scale combinatorial optimization problems, as well as techniques for improving the robustness of the model by handling uncertainties of takeoff times and trajectory prediction. Simulations carried out over the French airspace successfully solved all conflicts, with a mean of one minute allocated delay (80 to 90 minutes for the most delayed flight) and a discrepancy from optimal altitude of one flight level for most of the flights. Handling uncertainties with a static method leads to a dramatic increase in the cost of the previous non-robust solutions. However, we propose a dynamic model to deal with this matter, based on a sliding time horizon, which is likely to be able to cope with a few minutes of uncertainty with reasonable impact on the cost of the solutions.

The diploma work deals with stock holding and inventory management in selected company. The main sources of information were specialized liturature and information provided by the company. The objective of this thesis was analyse, evaluation and improvement suggestion of stock holding and inventory management. The theoretic part is focused on stock holding and theory of inventory management. In the practical part is presented the company, process of production and structure of inventory.It has been analysed process of stock holding and inventory management. The company use the program MGF/PRO and system kanban. The diploma work is closed by evaluation and improvement suggestion in inventory management.

Orientadores: Rosiane Lopes da Cunha, Miriam Dupas Hubinger / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos / Made available in DSpace on 2018-08-10T19:31:23Z (GMT). No. of bitstreams: 1 Neves_EdmeiaSabadini_D.pdf: 3460318 bytes, checksum: 852074cc798cd99ff46cf910e7887c71 (MD5) Previous issue date: 2008 / Resumo: Foram estudadas as interações entre as proteínas do leite e a carragena em sistemas acidificados com glucona-delta-lactona (GDL) contendo ou não co-solutos, como açúcar (sacarose) e a mistura salina KCl/NaCl, na formação/obtenção de géis. Foi possível avaliar o efeito das variáveis de composição (concentrações de caseinato de sódio, concentrado protéico do soro, carragena, sacarose ou mistura salina KCl/NaCl) e condições de processo (temperatura de mistura dos componentes, tempo de aquecimento e velocidade de agitação) nas propriedades mecânicas e da capacidade de retenção de água dos géis protéicos acidificados, utilizando a metodologia de planejamento experimental fatorial. Essas análises foram complementadas com microscopia eletrônica de varredura e calorimetria diferencial de varredura. Nos géis obtidos com adição de sacarose verificou-se que a concentração de carragena foi a variável de maior contribuição ao aumento da dureza, deformabilidade e firmeza dos géis. Através dos ensaios de relaxação de tensões, verificou-se que o módulo elástico foi fortemente influenciado pelas interações entre a carragena e o caseinato de sódio, na presença do açúcar. O gel mais forte foi obtido em altas concentrações de biopolímeros, sendo o efeito da sacarose associado à diminuição das interações polissacarídeo-solvente. Na análise dos ensaios de ruptura e de relaxação de tensões constatou-se que os géis com a adição da mistura salina (KCl/NaCl), comportaram-se de maneira diferente dos com e sem sacarose. Foram estruturalmente muito mais frágeis e, em certas formulações, não se formou gel, sendo a força iônica e a temperatura de processo, as variáveis que definiram as características reológicas do sistema com sal. Pode-se observar o efeito negativo da concentração do concentrado protéico do soro (CPS) nas propriedades mecânicas do gel lácteo. Na avaliação da capacidade de retenção de água nos sistemas contendo sal, o comportamento foi totalmente diferente do da sacarose. A adição do açúcar promoveu o fortalecimento da rede do gel, com uma malha mais firme e coesa ao contrário do observado para os géis com adição da mistura salina KCL/NaCl / Abstract: Gel formation due to interactions between milk proteins and carrageenan in systems acidified by glucono-delta-lactona (GDL) with or without co-solutes like sugar (sucrose) and KCl/NaCl, were studied. A factorial experimental design was used to determine the effect of several variables, such as: the composition of the system (concentrations of sodium caseinate, whey protein concentrate, carrageenan and sucrose or a KCl/NaCl mixture); the process conditions (temperature of the mixture, heating time and stirring speed), on the mechanical properties of the acidified gels, as well as their water holding capacity. Scanning Electronic Microscopy and Differential Scanning Calorimetry were also used to complement the studies. In the gels containing sucrose, the concentration of carrageen was the more important variable with respect to the increase in hardness, rigidity and consistence of the gels. Using the stress relaxation experiments, it was observed that the elastic modulus was highly affected by the interactions between the carrageenan and sodium caseinate if sucrose was present. The strongest gel was obtained with the higher concentrations of the biopolymers, and this can be attributed to a decrease in the interactions between the polysaccharides and the water. In the presence of salts (KCl/NaCl) the stress relaxation and rupture experiments showed that the gels obtained were different from those obtained with the addition of sucrose or without a solute. The gels containing salts were much weaker and in some cases failed to form a gel. For these gels, the ionic strength and the temperature were the more important variables affecting the rheological properties of the gels. On the other hand, a negative effect of the concentration of whey protein concentrate on the mechanical properties of the lacteous gels could also be observed, due to strong interactions between the sodium caseinate and carrageenan. In terms of the water holding capacity, the behaviors of the gels containing salts and sucrose were again completely different. In the presence of sucrose, the molecular structure of the gel became stronger and cohesive, the opposite effect being observed in gels containing salts (KCl/NaCl) / Doutorado / Doutor em Engenharia de Alimentos

Submitted by Newton Arata (nw_arata@hotmail.com) on 2012-09-06T20:46:23Z No. of bitstreams: 1 MPFE_NewtonArata_Cash holding.pdf: 522094 bytes, checksum: ef66f1f783cd069b20749cd0f636450c (MD5) / Approved for entry into archive by Suzinei Teles Garcia Garcia (suzinei.garcia@fgv.br) on 2012-09-10T12:46:19Z (GMT) No. of bitstreams: 1 MPFE_NewtonArata_Cash holding.pdf: 522094 bytes, checksum: ef66f1f783cd069b20749cd0f636450c (MD5) / Made available in DSpace on 2012-09-10T13:02:02Z (GMT). No. of bitstreams: 1 MPFE_NewtonArata_Cash holding.pdf: 522094 bytes, checksum: ef66f1f783cd069b20749cd0f636450c (MD5) Previous issue date: 2012-08-22 / This research extends previous studies of cash holdings and its determinants by studying the relationship between the degree of internationalization and the level of corporate cash holdings. Differently from domestic firms, internationalized firms have more investment opportunities and face more adversity in their businesses. We used a sample of non-financial publicly traded companies in Brazil and Mexico for the period 2006 to 2010. Panel regressions with fixed effects were used in the study. We found evidence that degree of internationalization is a determinant of cash and that cash holding increases quadratically as the degree of company internationalization increases. Brazilian dividend-paying companies hold more cash but this effect does not apply to Mexican companies. Furthermore, the behavior detected for Brazilian and Mexican companies was different from American companies studied by (Chiang and Wang, 2011). Finally, in the period before the crisis, companies held less cash on their balance sheets. / Estendemos estudos anteriores a cerca do nível de caixa e seus determinantes, analisando a relação entre grau de internacionalização e nível de caixa das empresas. Diferente das empresas domésticas, as empresas internacionalizadas possuem mais oportunidades de investimento e enfrentam mais adversidades nos seus negócios. Utilizamos uma amostra de empresas de capital aberto não financeiras do Brasil e do México, para o período de 2006 a 2010. Regressões em painel com efeitos fixos foram utilizadas. Encontramos evidências de que o grau de internacionalização é um determinante de caixa e que o nível de caixa aumenta de forma quadrática à medida que o grau de internacionalização da empresa aumenta. As empresas brasileiras pagadoras de dividendos seguram mais caixa, mas que esse efeito não se aplica para empresas mexicanas. Além disso, o comportamento encontrado para as empresas brasileiras e mexicanas foi diferente de empresas norte-americanas, estudadas por Chiang e Wang (2011). Por fim, no período antes da crise, as empresas seguraram menos caixa em seus balanços.

Les droits audiovisuels des manifestations sportives constituent un ensemble juridique complexe en constante évolution. La reconnaissance du monopole d’exploitation de la manifestation sportive au profit de l’organisateur, qui légitime la commercialisation des droits, constitue la pierre angulaire de cette construction. L’identification des entités titulaires des droits ne va pas de soi, le propriétaire n’ayant pas systématiquement vocation à les commercialiser. La procédure de mise en concurrence sur le marché demande de plus à être clarifiée compte tenu de la proximité des régimes juridiques en présence. Dans ce contexte, la commercialisation des droits donne lieu à un contrat dont la qualification juridique doit être précisée au regard des différentes dénominations rencontrées. L’environnement du contrat, qui permet d’appréhender comment sa réalité juridique est prise en compte par le droit à l’information et les contrats périphériques, ne peut pas être ignoré. Il s’agit ainsi de rechercher les implications juridiques attachées aux droits audiovisuels des manifestations sportives, de la phase de commercialisation au contrat. Plusieurs champs juridiques complémentaires et imbriqués irriguent alors cette recherche sur les droits audiovisuels des manifestations sportives, renforçant ainsi sa spécificité / Sports broadcasting rights are governed by a complex legal code in constant evolution. The notion that the organizer retains exclusive rights to the use of the sporting event, which legitimizes the commercialization of these rights, is the cornerstone of the system. Identifying the entities that hold the rights is not easy as the owner does not systematically retain commercialization rights. The approach to bringing broadcasting to market must be clarified due to the overlapping of legal domains. In this case, the commercialization of rights is outlined in a contract whose legal characteristics must be specified in accordance with the different denominations involved. The context in which the contract is drawn up cannot be ignored as it allows one to understand how its legal reality is taken into account by the right to information as well as related contracts. This dissertation looks at the legal implications of audiovisual broadcasting rights of sporting events, from the commercialization phase to the contract. Several complementary legal fields are linked to the research on sports broadcasting rights, thus strengthening its originality

The subject of this thesis are the models of the school-leaving exams changing over time due to the educational policy of the state and sometimes tumultuous political developments. The theoretical part contains historical analysis of the graduation exam and its models, creating the basis for the empirical part. Based on the study of legislation and rules governing conditions and holding the graduation exams and further study of the relevant literature, on a precise description of the current model and indicating the current efforts to modify the existing model of the graduation exam the vivid picture of this phenomenon in the whole range of educational issues is created. The attention is also paid to the issue of holding the graduation exam. The leaving examination since its inception in our country in 1849 has been defined by the law, its implementation has been modified the closer decrees. It has always been a significant "politicians", not only purely "educational theme." Changes in model of the school-leaving examination always reflect the changes in the system of our educational policy. The aim of the work in the empirical part is to analyze the current evolution, current status, to identify neuralgic points of the graduation exams and to suggest possible trends of the graduation exam in the...

The thesis is focused on holding companies legislation in the Czech Republic and related issue of tax optimization in the international business environment. First aim of this thesis is to map control and influence relations and therefrom arising legal obligations within Tescoma Group. Second aim is to explore Tescoma Group from the point of view of tax optimization and to compare advantages and disadvantages of alternative structures of the group.

由於 2007-2009 年金融風暴的發生 , 使得系統風險的研究受到相當大的關 注 , 而此論文也將探討台灣金融業的現況 。 我們根據Adrian et al.(2016) 、 Acharya et al.(2012) 以及 Brownlees et al.(2012)所提出的Delta CoVaR 、 MES 以及 SRISK 等系統風險衡量指標 , 估算台灣金控系統風險的大小 , 以及評 斷台灣系統風險重要金控的排序 。 透過時間序列及橫斷面的分析 , 我們更 將風險趨勢分群 , 或是從相關風險指標來作為監督機構或投資大眾參考的 早期警訊 。 最後 , 我們亦透過追蹤資料模型 , 找出系統風險重要的解釋變數 , 並分析變數的可能影響效果 。 / After the Financail Crisis of 2007-2009, there have been rich research about systemic risk analysis, and this work focus on financial industry in Taiwan. According to Adrian et al.(2016)、 Acharya et al.(2012)and Brownlees et al.(2012), we consider four measures for systemic risk,they are MES、SRISK、Delta CoVaR-DCC and CoVaR-Quantile. We demonstrate how to compare four different measures , and display the ranking of the Systemically Im- protant Financial Institutions (SIFs) based on the resulting SRISK, for Taiwanese holding companies. Finally , we also dicuss the individual and macroeconomic effects on systemic risk by using panel data regression .

<p>Уз растуће цене енергената, данас је од пресудног значаја тачно мерење<br />протока флуида у индустријским процесима. Због своје једноставности,<br />поузданости и једноставног одржавања, мерне бленде су често<br />распрострањени мерни инструменти у многим индустријама.<br />Конвенционална мерна бленда са једним отвором (БЈО) је широко<br />заступљен мерни инструмент на бази диференцијалног притиска, али овај<br />инструмент има и одређене недостатке, који се могу превазићи мерном<br />блендом са више отвора (БВО). Предмет истраживања докторске<br />дисертације је била БВО. За истраживање су се користиле<br />експериментална и нумеричка метода, а истражили су се однос површине<br />отвора бленде и површине попречног пресека цеви &beta;, пад притисака,<br />губитак притисака, утицај угла излазне ивице мерне бленде, утицај<br />влажности гаса и утицај равних деоница испред и иза мерне бленде на<br />тачност мерења. Такође поред овога одредио се и губитак снаге који<br />настаје код различитих мерних бленди, поврат притиска, коефицијент<br />протока тј. коефицијент пада притиска. Представљени резултати у оквиру<br />докторске дисертације су показали бројне предности БВО у односу на БЈО.</p> / <p>Uz rastuće cene energenata, danas je od presudnog značaja tačno merenje<br />protoka fluida u industrijskim procesima. Zbog svoje jednostavnosti,<br />pouzdanosti i jednostavnog održavanja, merne blende su često<br />rasprostranjeni merni instrumenti u mnogim industrijama.<br />Konvencionalna merna blenda sa jednim otvorom (BJO) je široko<br />zastupljen merni instrument na bazi diferencijalnog pritiska, ali ovaj<br />instrument ima i određene nedostatke, koji se mogu prevazići mernom<br />blendom sa više otvora (BVO). Predmet istraživanja doktorske<br />disertacije je bila BVO. Za istraživanje su se koristile<br />eksperimentalna i numerička metoda, a istražili su se odnos površine<br />otvora blende i površine poprečnog preseka cevi &beta;, pad pritisaka,<br />gubitak pritisaka, uticaj ugla izlazne ivice merne blende, uticaj<br />vlažnosti gasa i uticaj ravnih deonica ispred i iza merne blende na<br />tačnost merenja. Takođe pored ovoga odredio se i gubitak snage koji<br />nastaje kod različitih mernih blendi, povrat pritiska, koeficijent<br />protoka tj. koeficijent pada pritiska. Predstavljeni rezultati u okviru<br />doktorske disertacije su pokazali brojne prednosti BVO u odnosu na BJO.</p> / <p>Nowadays, with rising energy prices, accurate flow measurement is playing an<br />important role in industrial processes. Due to its simplicity, reliability and ease of<br />maintenance, orifice flow meters are very common measuring instruments in<br />many industries. Conventional single-hole orifice (SHO) flow meter is widely<br />used differential pressure-based instrument, but this instrument has some<br />disadvantages that can be overcome by multi-hole orifice (MHO) flow meter. The<br />subject of the doctoral dissertation research was MHO flow meter. Experimental<br />and numerical methods were used for the research, whereas the ratio of the<br />orifice area and the cross-sectional pipe area &beta;, pressure drop, pressure loss,<br />angle of bevel influence, gas humidity influence and straight sections upstream<br />and downstream of the orifice influence on measurement accuracy were<br />investigated. Also, power loss for different orifice flow meters, pressure recovery,<br />discharge coefficient i.e. pressure drop coefficient were determined. Results<br />presented within the doctoral dissertation showed numerous advantages of<br />MHO compared to SHO.</p>

The aim of the thesis “Proposal of the Stock Holding Process according to ČSN ISO 9001:2000” is to analyze the current process of stock holding in a particular company and compare it with the requirements of quality management system according to the norm ČSN ISO 9001:2000. The theoretical part consists of on analysis of the existing knowledge in the area of warehousing, a definition of quality management and basic concepts of quality management related to stock holding in a company. The practical part of the thesis describes a procedure of making the analyzed processes of stock holding more effective.