One of the challenges for Airbus preparing a new freighter development process was the design of a solid freighter barrier, which separates the courier area from the cargo compartment. The major task of such a barrier is to protect the passengers against all risks caused due to cargo impact by a justifiable design. These risks may result from all kind of survivable incident and accident scenarios. Real aircraft crashes were analyzed to get away from a static book-case and come to a more realistic dynamic crash scenario. A reduced-order simulation model was built up to investigate and simulate the dynamic effects during crash. The simulation model considers the highly nonlinear stiffness and damping characteristics of all critical cargo types and also includes their energy absorption potentials. A series of full scale container crash tests have been performed at accredited car crash facilities. The test campaigns were complemented by numerous component tests to study also general crash principles. The critical simulation parameters were identified and implemented into the simulation model. The subsequent validation process showed a close agreement between simulation and test. The simulation environment has turned out to be a reliable basis to simulate all critical barrier loads with respect to the specific aircraft loading distributions. The essence of this investigation is an adequate understanding of the real crash effects. The proposed dynamic crash approach is more realistic than the static condition and results in an optimized safety barrier wall concept. This dynamic approach provides equivalent safety compared to the existing devices and is accepted by FAA and EASA.

La thèse présentée a pour objectif d’analyser dans le cadre de l’approche dynamique du contrôle moteur la coordination motrice de participants sains et cérébrolésés évoluant sur un nouvel outil de rééducation, le cheval mécanique. L’analyse de ces coordinations spontanément adoptées par les individus sur ce cheval, ou modifiées suite à l’apprentissage d’une nouvelle coordination grâce à l’ajout d’un biofeedback visuel en temps réel, conduit à participer à (i) déterminer l’utilité du biofeedback dans ce type de tâche et (ii) à évaluer l’intérêt d’un protocole de 24 séances prescrites par nos soins et réalisées sur cet outil. L’objectif final est alors de participer à l’élaboration d’un protocole de rééducation posturale pour une population de patients cérébrolésés. La première étude a permis de mettre en avant le rôle joué par l’expertise dans l’évolution des coordinations posturales des individus sur le cheval mécanique amenant les cavalières expertes vers une coordination posturale plus adaptée (i.e. maintien des patterns en phase et en antiphase), en comparaison aux novices. Par ces analyses, la coordination tronc/cheval mesurée en antiphase, a été mise en lumière, correspondant ainsi à la coordination retrouvée dans l’activité équestre réelle. Par ailleurs, la mise en place d’une méthode d’apprentissage (étude 2) a permis de modifier le comportement postural des individus après seulement 3 séances, selon les conditions d’apprentissage prescrites. La fréquence d’oscillation du cheval avait un impact important sur la coordination des participants, qui adoptaient une coordination en antiphase (fort attracteur) lorsque la contrainte environnementale était élevée. Toutefois, ces observations n’ont pas permis de démontrer le réel intérêt de l’ajout d’un biofeedback visuel dans l’apprentissage d’une nouvelle coordination posturale chez des sujets sains. Enfin, la troisième étude réalisée chez des patients cérébrolésés a montré l’intérêt de cette nouvelle méthode de rééducation sur la coordination posturale de ces patients. Après 24 séances, leur coordination était différente de celle du groupe témoin, permettant de mettre en avant leur capacité à s’adapter aux contraintes et à développer des modes de coordinations posturales spécifiques (tronc/cheval en antiphase) à l’activité afin d’optimiser au mieux leur posture. / Rooted in the dynamical system approach of motor control, the aim of this thesis is to analyze the motor coordination of healthy and brain-damaged participants oscillating on a new rehabilitation tool: the mechanical horse. The analysis of spontaneous coordination exhibited by individuals on this horse and the learned coordination adopted after a learning phase provided by the addition of a visual biofeedback allowed (i) to determine the usefulness of biofeedback in learning an oscillating task and (ii) to evaluate the interest of a 24 sessions rehabilitation protocol performed using the mechanical horse. The final goal is to participate to the development of a postural rehabilitation protocol for a population of brain-damaged patients. The first study allowed to highlight the role of expertise in the dynamics of the postural coordination on the mechanical horse bringing the expert riders towards a more adapted postural coordination (i.e. maintaining in phase and antiphase patterns). Through this first analysis, the spontaneous trunk/horse coordination was highlighted as antiphase, corresponding to the coordination found in real equestrian activity. Furthermore, the implementation of a learning method (study 2) allowed to modify the postural behavior of novice riders after only 3 sessions. The oscillation frequency had a significant impact on the coordination of participants who fell in an antiphase coordination (strong attractor) when the environmental constraint was high. However concerning those novice but healthy participants, this experiment did not demonstrate the real value of an additional video feedback during learning of a new postural coordination. Finally, the third study performed in brain-damaged patients showed the interest of this new rehabilitation method on the postural coordination of these patients. After 24 sessions, their coordination was different from the one of the control group, allowing to highlight their ability to adapt of constraints and to develop specific modes of postural coordination (trunk/horse antiphase) in order to optimize their posture.

Made available in DSpace on 2016-04-25T20:21:01Z (GMT). No. of bitstreams: 1 Victor Rodrigues Collins.pdf: 1545096 bytes, checksum: ae202129c85feb055abe90a9c1e05730 (MD5) Previous issue date: 2013-08-06 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Work focused on the dynamics and movements of social change related to Malinowski s and G. Balandier´s contribution. Observe how the social dynamics happens immersed in a social structure related to the colonialist historical context in african and european societies carrying the germ of the possibility of social disorder and crisis related to internal contradictions and external political relations based on conflict. How the Functionalist and Generative approach to the social dynamics were able to analyze the internal and external social conditions as one unique circuit which the colonial expansive and the colonial consolidation movement happened and the consequences for traditional african societies colonized. This work points towards the limitations of conventional Anthropology by dealing with the social dynamics of the colonized societies. Focused in observing and analyzing how Anthropology unfolded itself, with an onthological and epistemological overcoming, and the opening of Anthropology towards history, related to the traditional african societies as well societies in history. In this work is exposed the generative dynamic approach, which consists in observing societies in the historical process related to their conflicts and contradictions towards a future reorganization of the social / Trabalho focado na dinâmica do movimento e da mudança social em relação à contribuição em Antropologia de B. Malinowski e G. Balandier. Observa como a dinâmica social se dá no contexto histórico do colonialismo em sociedades africanas e europeias, carregando o germe da desordem e da crise por conta de contradições internas e relações políticas conflituosas e desiguais externas. Como o funcionalismo e a abordagem dinâmica foram capazes de problematizar as condições sociais internas e externas como circuito único em que se deu a expansão e consolidação colonial, e as consequências para as sociedades tradicionais no continente africano colonizadas. O texto aponta ainda as limitações da Antropologia convencional em lidar com a dinâmica social das sociedades colonizadas. Observa e avalia como se deu o movimento de desdobramento da Antropologia, a superação ontológica e epistemológica, e abertura à história nos trabalhos de B. Malinowski e G. Balandier, tanto em relação às sociedades tradicionais no continente africano, como nas sociedades na história. Grande parte do trabalho expõe a abordagem dinâmica generativa, que implica observar as sociedades no processo histórico em relação a seus conflitos e contradições em direção a uma futura reorganização social

Made available in DSpace on 2016-04-26T14:54:24Z (GMT). No. of bitstreams: 1 Victor Rodrigues Collins.pdf: 1545096 bytes, checksum: ae202129c85feb055abe90a9c1e05730 (MD5) Previous issue date: 2013-08-06 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Work focused on the dynamics and movements of social change related to Malinowski s and G. Balandier´s contribution. Observe how the social dynamics happens immersed in a social structure related to the colonialist historical context in african and european societies carrying the germ of the possibility of social disorder and crisis related to internal contradictions and external political relations based on conflict. How the Functionalist and Generative approach to the social dynamics were able to analyze the internal and external social conditions as one unique circuit which the colonial expansive and the colonial consolidation movement happened and the consequences for traditional african societies colonized. This work points towards the limitations of conventional Anthropology by dealing with the social dynamics of the colonized societies. Focused in observing and analyzing how Anthropology unfolded itself, with an onthological and epistemological overcoming, and the opening of Anthropology towards history, related to the traditional african societies as well societies in history. In this work is exposed the generative dynamic approach, which consists in observing societies in the historical process related to their conflicts and contradictions towards a future reorganization of the social / Trabalho focado na dinâmica do movimento e da mudança social em relação à contribuição em Antropologia de B. Malinowski e G. Balandier. Observa como a dinâmica social se dá no contexto histórico do colonialismo em sociedades africanas e europeias, carregando o germe da desordem e da crise por conta de contradições internas e relações políticas conflituosas e desiguais externas. Como o funcionalismo e a abordagem dinâmica foram capazes de problematizar as condições sociais internas e externas como circuito único em que se deu a expansão e consolidação colonial, e as consequências para as sociedades tradicionais no continente africano colonizadas. O texto aponta ainda as limitações da Antropologia convencional em lidar com a dinâmica social das sociedades colonizadas. Observa e avalia como se deu o movimento de desdobramento da Antropologia, a superação ontológica e epistemológica, e abertura à história nos trabalhos de B. Malinowski e G. Balandier, tanto em relação às sociedades tradicionais no continente africano, como nas sociedades na história. Grande parte do trabalho expõe a abordagem dinâmica generativa, que implica observar as sociedades no processo histórico em relação a seus conflitos e contradições em direção a uma futura reorganização social

Les niveaux actuels de la fécondité africaine sont, pour la plupart des observateurs, l’expression d’un maintien des valeurs traditionnelles d’essence ancestrale. Celles-ci continueraient à déterminer les comportements reproductifs, en dépit des changements économiques, politiques et sociaux. En partant du cas de la République du Congo, l’analyse dynamique et contextuelle de ces comportements, révèle que ceux-ci sont plutôt en nette rupture par rapport au niveau actuel de la fécondité ; ils suggèrent d’importants besoins non satisfaits de limitation des naissances. Il est possible qu’un certain réflexe malthusien se développe progressivement, qui n’exclut nullement le besoin ou désir d’enfants, contrairement à certaines théories. Ces comportements sont caractérisés par de profonds changements se traduisant par une déconnexion entre sexualité, nuptialité et procréation ; un rajeunissement des âges au premier rapport sexuel et à la première naissance ; l’ajournement de l’âge d’entrée en union matrimoniale et par la baisse de la polygamie. Les comportements reproductifs actuels sont de nature à entraîner la fécondité à la baisse, s’ils étaient bien encadrés institutionnellement dans le contexte actuel. L’importance croissante de la fécondité des adolescentes invite à redéfinir les fondements de la fécondité africaine. Dans un contexte marqué également par d’importantes ruptures dans les mécanismes de transmission des valeurs traditionnelles, amplifiée par la scolarisation et l’urbanisation, il est souhaitable de restructurer la communication sur les choix en matière de contrôle de la fécondité. Autrement, la transition de la fécondité, irréversible, se fera à son rythme, non pas seulement au gré des crises, mais de façon durable par adaptation aux conditions de vie et au mode de production en développement. / Current levels of African fertility are, for most observers, the expression of a continuation of traditional values of ancestral essence. For those observers, the traditional values continue to determine reproductive behavior, despite the economic, political and social changes. Based on the case of the Republic of Congo, dynamic and contextual analysis of these behaviors, reveal that these are rather clear break from the current level of fertility; they suggest significant unmet need for birth control. It is possible that a Malthusian reflex develops gradually, which does not exclude the need for children, contrary to some theories. These behaviors are characterized by profound changes resulting in a disconnection between sexuality, marriage and reproduction; rejuvenation of the ages at first intercourse and first birth; postponing the age of entry into marital union and the decline of polygamy. Current reproductive behavior are likely to make fertility declining, if they were well supported institutionally in the current context. The growing importance of adolescent fertility calls for redefining the foundations of African fertility. In a context marked also by significant disruptions in the mechanisms of transmission of traditional values, enhanced by education and urbanization, it is desirable to restructure the communication on the choice of fertility control. Otherwise, the fertility transition, which is irreversible, will be at its own pace, not just at the mercy of crises, but in a sustainable way by adaptation to the conditions of life and way of production in process.

Voltage Impasse Region (VIR) is a phenomenon in power systemswhose dynamics are describe by a set of Differential AlgebraicEquations (DAE). VIR denotes a state-space area where voltagecausality is lost, i.e. the Jacobian of the algebraic part of DAEis singular. In a Time Domain Simulation (TDS) once system trajectoriesenter VIR, TDS experiences non-convergence of the solution.Then, there is no reason to continue with the simulation. Thisis why it is important to understand the mechanisms that introduceVIR. It is known that VIR appears in relation to static, non-linearload models. However, it remained unknown what the cumulativeeffect of several static, non-linear loads would be.This master thesis has further expanded the concept of VIRby carrying out a structured study on how the load modelling affectsVIR. For this purpose, this thesis proposes a quasi-dynamicmethodology to map VIR in the relative rotor angle space. Themethodology introduces a new discrete index called Voltage ImpasseRegion Flag (VIRflag), which allows to determine if the algebraicequations of DAE are solvable or not and, thus, to locate VIR.A test system is used to test the proposed quasi-dynamic approach.The VIRflag was first used to map VIR for various load combinations.Then, the relationship between TDS non-convergence issuesand the intersection of a trajectory with VIR is examined toverify the proposed methodology.The proposed method has been proved to be efficient in the determinationof VIR regardless of the number of non-linear loads inthe power system. Among the static exponential load models, theConstant Power (CP) load component has been identified as theone with the largest influence on VIR appearance and shape. TheConstant Current (CC) loads induce ”smaller" VIR areas and theConstant Impedance (CI) load can only alter the shape of VIR inthe presence of non-linear load models. / VIR (Voltage Impasse Regions) är ett fenomen i kraftsystem varsdynamiska förlöp beskrivs av differential-algebraiska ekvationer(DAE). VIR betecknar ett område i tillståndsrummet där går förlorad,dvs Jakobianen av den algebraiska delen av DAE är singulärI tidsdomän-simuleringar (TDS) när en trajektoria träffar VIR,konvergerar TDS inte till en lösning. Då finns ingen anledning attfortsätta med simuleringen. Därför är det viktigt att förstå mekanismernasom introducerar VIR. Det är känt att VIR är relateradetill statiska, icke-linjära lastmodeller. Det var dock okänt vadden kumulativa effekten av flera statiska, icke-linjära belastningarskulle vara.Denna uppsats har vidareutvecklat begreppet VIR genom attgenomföra en strukturerad studie om hur lastmodellering påverkarVIR. För detta ändamål föreslår denna avhandling en kvasidynamiskmetod för att kartlägga VIR i det relativa rotorvinkelrummet.Metoden introducerar ett nytt diskret index som heterVoltage Impasse Region Flag (VIRflag), vilket gör det möjligt attbestämma om den algebraiska delen av DAE är lösbar eller inteoch därmed lokalisera VIR. Ett används för att testa det föreslagnakvasi-dynamiska tillvägagångssättet. VIRflag användes först för attkartlägga VIR för olika belastningskombinationer. Därefter granskasförhållandet mellan konvergensproblem i TDS och korsningenmellan en trajektoria och VIR för att verifiera den föreslagna metoden.Den föreslagna metoden har visat sig vara effektiv vid bestämningav VIR, oberoende av antalet icke-linjära belastningar. Bland destatiska exponentiella belastningsmodellerna har konstanteffektlast(CP) haridentifierats som den som har störst inflytande påVIR;s form. Den konstantströmlasten (CC) inducerar mindre"VIRområdenoch konstantimpedanslasten (CI) kan endast ändra formenav VIR i närvaro av icke-linjära belastningsmodeller.

One of the challenges for Airbus preparing a new freighter development process was the design of a solid freighter barrier, which separates the courier area from the cargo compartment. The major task of such a barrier is to protect the passengers against all risks caused due to cargo impact by a justifiable design. These risks may result from all kind of survivable incident and accident scenarios. Real aircraft crashes were analyzed to get away from a static book-case and come to a more realistic dynamic crash scenario. A reduced-order simulation model was built up to investigate and simulate the dynamic effects during crash. The simulation model considers the highly nonlinear stiffness and damping characteristics of all critical cargo types and also includes their energy absorption potentials. A series of full scale container crash tests have been performed at accredited car crash facilities. The test campaigns were complemented by numerous component tests to study also general crash principles. The critical simulation parameters were identified and implemented into the simulation model. The subsequent validation process showed a close agreement between simulation and test. The simulation environment has turned out to be a reliable basis to simulate all critical barrier loads with respect to the specific aircraft loading distributions. The essence of this investigation is an adequate understanding of the real crash effects. The proposed dynamic crash approach is more realistic than the static condition and results in an optimized safety barrier wall concept. This dynamic approach provides equivalent safety compared to the existing devices and is accepted by FAA and EASA.:Contents 1 Scope of the Work 1 1.1 State-of-the-Art Barrier Design 1 1.2 General Crash Justification Requirement 2 1.3 Barrier Protection Criterion 3 1.4 Proposed Dynamic Approach for an Optimized Safety Barrier Design 4 2 Simulation 6 2.1 About this Chapter 6 2.2 Simulation environment Matlab/Simulink 7 2.3 Simulation Model 7 2.4 Differential Equation 11 2.5 Stiffness and Damping 14 2.6 Crash Pulses 17 2.7 Dynamic Latch Behavior 21 2.8 Model Implementation 21 2.8.1 Derivation of the Equation Set Up for One Cargo Unit 22 2.9 Simulation Environment 25 3 Full Scale ULD Crash Tests 33 3.1 About this Chapter 33 3.2 Objectives 33 3.3 Test Setup 34 3.3.1 Cargo Configuration 34 3.3.2 Test Configuration 38 3.3.3 Test Equipment 39 4 Analysis of ULD Crash Tests 41 4.1 Test Results 41 4.1.1 Test with frangible Cargo 41 4.1.2 Test with rigid Cargo 45 4.2 Measurement Quality 47 4.3 Load Principles 50 4.4 Load Propagation on Barrier 52 5 Parameter Identification and Results 53 5.1 About this Chapter 53 5.2 Identification Process 53 5.3 Stiffness and Damping Identification 56 5.3.1 Identification of first ULD characteristic 57 5.3.2 Identification of second and aft ULDs 58 5.3.3 Identified Load-De ection Characteristics 59 5.4 Model Validation 60 6 Barrier Protection against Rigid Cargo Impact 63 6.1 About this Chapter 63 6.2 Excitation Pulse 64 6.3 State-of-the-Art Consideration 65 VIII CONTENTS 6.4 Simulation Model based on Energy Method 67 6.5 Reduced Crushable Cargo owing to Rigid Cargo Tests 70 7 Full Scale Latch Rupture Test 74 7.1 About this Chapter 74 7.2 Objectives 75 7.3 Test Setup 76 7.3.1 Tested Cargo 78 7.3.2 Test Measurement 80 8 Analysis of Latch Rupture Test 82 8.1 About this Chapter 82 8.2 Results and Physical Effects 83 8.2.1 Energy Flow Consideration 83 8.2.2 Pulse Consideration 86 8.2.3 Load and Velocity Consideration 86 8.2.4 Summary 91 9 Consolidation of the Two Crash Requirements 92 9.1 Integration of Frangible and Rigid Simulation Model 92 9.2 Linked Simulation Results 92 9.3 Dynamic Impact Loads on Safety Barrier Wall 93 9.4 Minimal Barrier Loads for Safety Barrier Wall Protection 96 9.5 Safety Barrier Wall Design Loads 99 10 Summary and Outlook 101

No description available.

В магистерской диссертации рассмотрены современные проблемы управления информационной инфраструктурой. Изучена деятельность Государственного Бюджетного Учреждения «Научно-технического центра инноваций и технологий» и составлена модель информационной инфраструктуры разработан проект для повышения эффективности работы предприятия, а также применен системно-динамический подход для оценки внедрения ЦОД. / The master's thesis deals with modern problems of information infrastructure management. The activities of the State Budgetary Institution "Scientific and Technical Center for Innovation and Technology" were studied and an information infrastructure model was drawn up, a project was developed to improve the efficiency of the enterprise, and a system-dynamic approach was applied to assess the implementation of the data center.

В магистерской диссертации рассмотрены современные проблемы управления персонала, проанализированы объективные характеристики для проблемы управления персоналом. Изучена деятельность Государственного Бюджетного Учреждения «Научно-технического центра инноваций и технологий» и составлена модель полной архитектуры предприятия с применением прикладного пакета ARIS. Обоснована необходимость внедрения цифровой платформы в деятельность организационно-управленческого отдела Центрального Республиканского Банка Донецкой Народной Республики. Выполнена разработка проекта внедрения цифровой платформы на предприятие; определена экономическая эффективность внедрения, а также применён системно-динамический подход с целью демонстрации трудозатрат на выполнение этапов внедрения цифровой платформы. / In the master's thesis, modern problems of personnel management are considered, objective characteristics for the problem of personnel management are analyzed. The activities of the State Budgetary Institution «Scientific and Technical Center for Innovation and Technology» were studied and a model of the complete architecture of the enterprise was compiled using the ARIS application package. The necessity of introducing a digital platform into the activities of the organizational and management department of the Central Republican Bank of the Donetsk People's Republic is substantiated. The development of a project for the implementation of a digital platform for an enterprise was completed; the economic efficiency of implementation was determined, and a system-dynamic approach was applied to demonstrate the labor costs for the implementation of the stages of implementation of the digital platform.