Bibliografias temáticas / Dynamic of transfert

Literatura científica selecionada sobre o tema "Dynamic of transfert"

Autor: Grafiati

Publicado: 25 de maio de 2024

Crie uma referência precisa em APA, MLA, Chicago, Harvard, e outros estilos

Selecione um tipo de fonte:

Índice

Artigos de revistas
Teses / dissertações
Livros
Capítulos de livros
Trabalhos de conferências
Relatórios de organizações

Consulte a lista de atuais artigos, livros, teses, anais de congressos e outras fontes científicas relevantes para o tema "Dynamic of transfert".

Ao lado de cada fonte na lista de referências, há um botão "Adicionar à bibliografia". Clique e geraremos automaticamente a citação bibliográfica do trabalho escolhido no estilo de citação de que você precisa: APA, MLA, Harvard, Chicago, Vancouver, etc.

Você também pode baixar o texto completo da publicação científica em formato .pdf e ler o resumo do trabalho online se estiver presente nos metadados.

Artigos de revistas sobre o assunto "Dynamic of transfert"

Nadan, Amos. "Colonial Misunderstanding of an Efficient Peasant Institution: Land Settlement and Mushā Tenure in Mandate Palestine, 1921-47". Journal of the Economic and Social History of the Orient 46, n.º 3 (2003): 320–54. http://dx.doi.org/10.1163/156852003322316661.

Texto completo da fonte

Resumo:

AbstractThe accepted wisdom is that the mushā in Palestine was an archaic system that blocked any chance of development, since no one had any inducement to improve his land. But this study of the mushā, as part of a set of institutions, contradicts that wisdom. The mushā in Palestine was an efficient, dynamic economic institution that facilitated investment. There was no need for land reform, which only proved destructive to the economy of the fallāhīn. It nullified the advantages inherent in the system and, unexpectedly, facilitated the transfer of lands from Arabs to Jews. La vision généralement admise est que le mushā en Palestine était un système archaïque qui faisait obstacle à toute perspective de développement, puisque personne n'était incité à améliorer sa terre. Mais notre étude du mushā contredit cette vision. Le mushā en Palestine était une institution économique efficace et dynamique qui facilitait l'investissement. La réforme foncière qui abolit le mushā a été destructrice pour l'économie des fallāhīn. La réforme a annulé les avantages inhérents au système et, de façon inattendue, a facilité le transfert de terres des Arabes aux Juifs.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Madzharov, Nikolay D., Raycho T. Ilarionov e Anton T. Tonchev. "System for Dynamic Inductive Power Transfer". Indian Journal of Applied Research 4, n.º 7 (1 de outubro de 2011): 173–76. http://dx.doi.org/10.15373/2249555x/july2014/52.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Pfund, Jean-Laurent, Pierre Kistler e Stefano Guidese. "Gestion de la forêt tropicale en zone rurale: le transfert de technologies peut-il être le catalyseur de partenariats durables? | Management of tropical forests in rural areas: Can technology transfer really act as a catalyst for sustainable partnerships?" Schweizerische Zeitschrift fur Forstwesen 155, n.º 3-4 (1 de março de 2004): 97–105. http://dx.doi.org/10.3188/szf.2004.0097.

Texto completo da fonte

Resumo:

This article discusses the necessary adaptation of improvement techniques to local rural requirements, based on two case studies on (i) a forest with high timber potential and (ii) a forest with high agricultural pressure. Results underline the importance of the exchange of information and communication networks as essential components of a dynamic development. In spite of fundamentally different forest management schemes, a number of analytical elements seem common in both cases studied (Congo Basin and Madagascar). According to these examples, one can see that the disabling factors arise,on the one hand, from classical problems of maladjustment to local conditions, and from deficiencies in the «tools» of information transmission and sustainability gaps, due to lack of support from the local population, on the other. Moreover, it is clear that a strategy needs to be adopted that grants the local system as much autonomy as possible. The strategy must satisfy the basic needs of the local population and also take the growing need for cash into account. The article concludes that the transfer of technologies can indeed quickly become a catalyst of sustainable partnerships in favorable conditions of local development, provided that the local beneficiaries of the transfer are identified in an equitable manner. At the same time, preceding and normally complementary measures are necessary to improve local competences and organization. The setting up of lasting relations with partners and their organisations is the key to reaching a consensus on the definition of objectives, as well as to regular relations that allow for adjustments to the system should complications arise. Responsibility for the sustainability of the system remains with the State, which co-ordinates activities as a whole, while dynamic impulses come more from the economic sector. In addition to setting up long-term partnerships the central concerns of the system include local know-how, the capabilities of assimilation and negotiation between the principal local actors and sound financial analysis.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Ahn, T. Y., K. F. Eman e S. M. Wu. "Cutting Dynamics Identification by Dynamic Data System (DDS) Modeling Approach". Journal of Engineering for Industry 107, n.º 2 (1 de maio de 1985): 91–94. http://dx.doi.org/10.1115/1.3185988.

Texto completo da fonte

Resumo:

The dynamics of the cutting process have been conventionally characterized in terms of the Dynamic Cutting Force Coefficients (DCFC) which represent its transfer characteristics at discrete frequencies. However, this approach fails to obtain the transfer function of the process in closed analytical form. Anticipating the stochastic nature of the cutting process and the double modulation principle, a two-input one-output multivariate system was postulated for the dynamic cutting process identification model. The Dynamic Data System (DDS) methodology was used to formulate and characterize the dynamic cutting process using Modified Autoregressive Moving Average Vector (MARMAV) models. Subsequently, transfer functions of the inner and outer modulation dynamics of the cutting processes were obtained from the identified models.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Gichan, O. I. "Dynamic instabilities on a charged boundary: influence of mass transfer". Reports of the National Academy of Sciences of Ukraine, n.º 10 (16 de novembro de 2016): 47–53. http://dx.doi.org/10.15407/dopovidi2016.10.047.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Kubsch, Marcus, e Paul C. Hamerski. "Dynamic Energy Transfer Models". Physics Teacher 60, n.º 7 (outubro de 2022): 583–85. http://dx.doi.org/10.1119/5.0037727.

Texto completo da fonte

Resumo:

Energy is a disciplinary core idea and a cross-cutting concept in the K-12 Framework for Science Education and the Next Generation Science Standards (NGSS). As numerous authors point out, the energy model in these standards emphasizes the connections between energy and systems. Using energy ideas to interpret or make sense of phenomena means tracking transfers of energy across systems (including objects and fields) as phenomena unfold. To support students in progressing towards this goal, numerous representations—both static and dynamic—that describe the flow of energy across systems exist. Static representations work well to describe phenomena where the flow of energy is unidirectional and the dynamics are not a focus but struggle to represent circular energy flows and the temporal order of complex, dynamic phenomena. Existing dynamic representations like Energy Theater are usually qualitative, i.e., they represent energy in ways that differentiate between larger or smaller rates of transfer but do not provide a more detailed quantitative picture. In this article, we present how an existing, empirically tested, static representation called Energy Transfer Model (ETM) can be turned into a dynamic representation that is quantitatively accurate using the freely available 3D animation programming environment GlowScript ( https://www.glowscript.org ). To do so, we first summarize the central ideas in a model of energy that emphasizes the idea of energy transfer between systems, and we describe how the ETM represents those ideas. Then, we introduce the dynamic ETM and explain how it goes beyond the limitations of its static counterpart and how its quantitative accuracy adds to existing dynamic representations. Lastly, we discuss how the dynamic ETM can be used to integrate computational thinking into the physics classroom.

Estilos ABNT, Harvard, Vancouver, APA, etc.

AKHAVAN, R., A. ANSARI, S. KANG e N. MANGIAVACCHI. "Subgrid-scale interactions in a numerically simulated planar turbulent jet and implications for modelling". Journal of Fluid Mechanics 408 (10 de abril de 2000): 83–120. http://dx.doi.org/10.1017/s0022112099007582.

Texto completo da fonte

Resumo:

The dynamics of subgrid-scale energy transfer in turbulence is investigated in a database of a planar turbulent jet at Reλ ≈ 110, obtained by direct numerical simulation. In agreement with analytical predictions (Kraichnan 1976), subgrid-scale energy transfer is found to arise from two effects: one involving non-local interactions between the resolved scales and disparate subgrid scales, the other involving local interactions between the resolved and subgrid scales near the cutoff. The former gives rise to a positive, wavenumber-independent eddy-viscosity distribution in the spectral space, and is manifested as low-intensity, forward transfers of energy in the physical space. The latter gives rise to positive and negative cusps in the spectral eddy-viscosity distribution near the cutoff, and appears as intense and coherent regions of forward and reverse transfer of energy in the physical space. Only a narrow band of subgrid wavenumbers, on the order of a fraction of an octave, make the dominant contributions to the latter. A dynamic two-component subgrid-scale model (DTM), incorporating these effects, is proposed. In this model, the non-local forward transfers of energy are parameterized using an eddy-viscosity term, while the local interactions are modelled using the dynamics of the resolved scales near the cutoff. The model naturally accounts for backscatter and correctly predicts the breakdown of the net transfer into forward and reverse contributions in a priori tests. The inclusion of the local-interactions term in DTM significantly reduces the variability of the model coefficient compared to that in pure eddy-viscosity models. This eliminates the need for averaging the model coefficient, making DTM well-suited to computations of complex-geometry flows. The proposed model is evaluated in LES of transitional and turbulent jet and channel flows. The results show DTM provides more accurate predictions of the statistics, structure, and spectra than dynamic eddy-viscosity models and remains robust at marginal LES resolutions.

Estilos ABNT, Harvard, Vancouver, APA, etc.

SAMIR FEKRY, Christina. "Transfert stylistique des registres langagiers dans la traduction audiovisuelle vers le français des deux films égyptiens Femmes du Caire et Les Femmes du Bus 678". Traduction et Langues 20, n.º 1 (31 de agosto de 2021): 58–85. http://dx.doi.org/10.52919/translang.v20i1.848.

Texto completo da fonte

Resumo:

Stylistic Transfer of Language Registers in the Audiovisual Translation into French of the Two Egyptian Films Femmes du Caire and Les Femmes du Bus 678 Pre-recorded interlinguistic subtitles are texts added in the lower part of the image to translate simultaneously the scene seen and heard. Subtitling is a delicate operation in which one must find the balance between the oral context presented on the screen and the written translation that scrolls at a pace that the viewer cannot control. During the stylistic transfer of the film dialogue, subtitles are perceived not as syntaxico-semantic units read in isolation, but as an inseparable component of the audiovisual multimodal text. The present study aims to provide answers to the following questions: what TAV strategies did the subtitler adopt to translate the dramatic cinematographic narration of the two films studied? And how does this affect the interpretation of a particular sequence by the second recipient, namely the French- speaking audience? What impact could a translational choice have on audiovisual adaptation in the target language-culture? We identified in “Femmes du Caire” and “Les Femmes du Bus 678”, two language registers, namely the common speech and the colloquial register whose use we examined in different scenes considering the linguistic classification of the language levels in French and in Arabic, and taking into account the cultural and the situational frameworks, the context of production and reception and the relationship between the interlocutors. Considering the spatio-temporal constraints of this mode of AVT requiring from the translator-adapter a hierarchy of the information contained in the speech in the light of a possible condensation, reformulation, economy, even omission, if necessary, we also based our analysis on the theory of meaning and the theory of dynamic equivalence essential for the interpretation of the source language and the production of an intelligible target subtitles stylistically appropriate to the language level used.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Chen, Tian Li, Jing Zeng, Yao Hui Lu e Li Min Zhang. "Vibration Transfer Analysis of High Speed Train Considering Car body Flexibility". Advanced Materials Research 605-607 (dezembro de 2012): 1168–71. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.1168.

Texto completo da fonte

Resumo:

In order to research the influence of the flexible car body on the vehicle system dynamic performance and to achieve the reasonable match between high speed and lightweight，it is necessary to build vehicle system dynamic model with the rigid car body replaced by the flexible car body. Due to the lower structure natural vibration frequency of car body, the influence of carbody flexibility on vehicle system dynamic performance is more influential. The influences of structural vibration of car body on vehicle system dynamics performance were studied by finite element analysis (FEA) method and multi-body system (MBS) dynamics theory. Rigid-flexible coupled vehicle system dynamic models were built up and the car body key location’s vibration was analyzed through vibration transmission chain. The results show that the influences of high speed carbody structure vibration on vehicle system dynamics performance are distinguished especially in the domain of car body natural vibration frequency.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Mygal, V. P. "Influence of radiation heat transfer dynamics on crystal growth". Functional materials 25, n.º 3 (27 de setembro de 2018): 574–80. http://dx.doi.org/10.15407/fm25.03.574.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Mais fontes

Teses / dissertações sobre o assunto "Dynamic of transfert"

De, Oliveira Campos Leandro Dijon. "Mass transfer coefficients across dynamic liquid steel/slag interface". Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0554/document.

Texto completo da fonte

Resumo:

Afin de prédire l’évolution de la composition chimique du laitier dans différents procédés sidérurgiques, un modèle CFD a été développé. Les coefficients de transfert de masse sont estimés à partir des modèles basés sur les paramètres physico-chimiques et hydrodynamiques, comme par exemple la diffusivité des espèces chimiques et la divergence de l’interface. Ces modèles ont été développé pour la prédiction du transfert gaz-liquide où le les nombres de Schmidt (Sc=ν⁄D) sont relativement faible (Sc≈200). Par contre, les procédés industriels ont un nombre de Sc considérablement plus importante, de l’ordre de 103 à 104. Pour évaluer la pertinence de ces modèles, l’hydrodynamique au voisinage d’une interface liquide-liquide a été étudiée. Un modèle CFD et des mesures par l’anémométrie laser (LDA) ont été utilisés pour calculer et valider les champs de vitesse d’une maquette à eau d’une lingotière de coulée continue (CC).Le modèle de transfert de masse d’une lingotière de coulée continu industriel nous a montré que les coefficients de transfert de masse ne sont pas distribués de manière homogène, et les propriétés physiques du laitier ne doivent pas y être non plus. Cette distribution non-homogène a été confirmée par des essais physiques. Les écoulements calculés numériquement ont été utilisé pour prédire les coefficients de transfert de masse entre les deux phases liquide. Ces paramètres seront utilisés comme donnée d’entré pour un modèle de thermodynamique afin de prédire l’évolution de la composition chimique du laitier
In order to characterize the mass transfer coefficients (MTC) of different species across liquid steel/slag interface, a multiphase Computational Fluid Dynamic (CFD) model was developed. MTC’s are estimated from models based on physicochemical and hydrodynamic parameters, such as mass diffusivity, interface shear and divergence strength. These models were developed for gas-liquid interactions with relative low Schmidt (Sc=ν⁄D) numbers (Sc≈200). However, the industrial processes involve mass transfer of chemical species with Sc number ranging from 103 to 104. To evaluate the applicability of these existing models, the fluid flow in the vicinity of a liquid/liquid interface is investigated. Computational Fluid Dynamic (CFD) and Laser Doppler Anemometry (LDA) were used to calculate and measure the velocity field on a continuous casting (CC) water model configuration. The work provides new insights and original measures to understand the fluid flow near liquid-liquid interfaces.The mass transfer model of an industrial continuous casting mold showed that the mass transfer coefficients are not homogeneously distributed, and slag properties should follow this trend. This non-homogeneity was confirmed by physical experiments performed with a water model of a CC configuration and its CFD representation. The calculated flow was used to predict the MTC and the interface area between phases, since the interface is constantly moving. These parameters will be the input of thermodynamic models to predict slag composition and viscosity. This methodology is currently under validation, and it will also be applied to improve steel plant performance in the desulphurization process

Estilos ABNT, Harvard, Vancouver, APA, etc.

Hazard, Browning Barbara. "Dynamic Modelling of a Fixed Bed Reactor to Study the First Instants of Gas Phase Ethylene Polymerisation". Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10109/document.

Texto completo da fonte

Resumo:

La polymérisation des oléfines à l'aide de catalyseurs metallocène est une réaction développée au niveau industriel. Bien que les premiers instants de la réaction aient une importance déterminante pour le procédé, ils n'ont fait l'objet que de très peu de travaux de recherche. Dernièrement, le l'équipe du prof. Mc Kenna a conçu un réacteur de type lit fixe pour étudier en détail ces premiers instants de la réaction. Néanmoins, face à la complexité de la réaction étudiée, un travail de modélisation s'avérait nécessaire afin de mieux appréhender l'ensemble des phénomènes influant sur les résultats et ainsi proposer des améliorations à ce montage expérimental. C'est ce travail qui est présenté dans ce manuscrit. Le premier modèle considère le réacteur comme un calorimètre semi-ouvert sur la matière en entrée, et utilise des lois cinétiques simplifiées. Il a ainsi était démontré que l'augmentation de la température dans le réacteur était un paramètre particulièrement important. Le design a ainsi été modifié en conséquence afin de contrôler l'exothermie de la réaction. Dans un second temps, une étude fine sur les mesures de pression récupérées dans le réacteur a été réalisée mettant en avant que le régime transitoire de montée en pression avait un rôle clef sur cette réaction. L'intégration de ces données a permis d'améliorer le modèle utilisé. Contrairement aux résultats obtenus sur des temps de réaction longs, il a été démontré que la désactivation était plus rapide à basse température lors des premiers instants de la réaction
The behaviour of silica supported metallocene catalyst in the early moments of olefin polymerization is not well understood. The complexity, rapidity and high exothermicity of the reaction impede observation of the kinetics and morphological changes. The fixed bed reactor constructed by McKenna’s group is designed to study these first instants of gas phase olefin polymerisation. The purpose of the modelling work presented is to gain understanding and improve the set-up through better knowledge of the reactor conditions. After a literature survey, the existing set-up was reviewed and analysed. A reactor model was constructed and programmed with polymerisation kinetics represented by a simple relation. The model was validated for individual experiments under optimised conditions. Use of the reactor as a calorimeter was evaluated and a state observer for the polymerisation rate was tested. The model was also used to show that very high temperatures are possible in the reactor bed and to simulate effects of changes to reactor construction and operating conditions. The reactor pressurisation profile is non negligible for experiments of shorter duration. New kinetics based on this were incorporated into the model: these were able to represent series of experiments and take account of the deactivation reaction. Contrary to results from longer duration experiments, our model finds initial deactivation does not appear to be controlled by temperature

Estilos ABNT, Harvard, Vancouver, APA, etc.

Xue, Yongjian. "Dynamic Transfer Learning for One-class Classification : a Multi-task Learning Approach". Thesis, Troyes, 2018. http://www.theses.fr/2018TROY0006.

Texto completo da fonte

Resumo:

Le but de cette thèse est de minimiser la perte de performance d'un système de détection lorsqu'il rencontre un changement de distribution de données à la suite d’un événement connu (maintenance, ajout de capteur etc.). L'idée est d'utiliser l'approche d'apprentissage par transfert pour exploiter l'information apprise avant l’événement pour adapter le détecteur au système modifié. Un modèle d'apprentissage multitâche est proposé pour résoudre ce problème. Il utilise un paramètre pour équilibrer la quantité d'informations apportées par l'ancien système par rapport au nouveau. Ce modèle est formalisé de manière à pouvoir être résolu par un SVM mono-classe classique avec une matrice de noyau spécifique. Pour sélectionner le paramètre de contrôle, une méthode qui calcule les solutions pour toutes les valeurs du paramètre introduit et un critère de sélection de sa valeur optimale sont proposés. Les expériences menées dans le cas de changement de distribution et d’ajout de capteurs montrent que ce modèle permet une transition en douceur de l'ancien système vers le nouveau. De plus, comme le modèle proposé peut être formulé comme un SVM mono-classe classique, des algorithmes d'apprentissage en ligne pour SVM mono-classe sont étudiés dans le but d'obtenir un taux de fausses alarmes stable au cours de la phase de transition. Ils peuvent être appliqués directement à l'apprentissage en ligne du modèle proposé
The aim of this thesis is to minimize the performance loss of a one-class detection system when it encounters a data distribution change. The idea is to use transfer learning approach to transfer learned information from related old task to the new one. According to the practical applications, we divide this transfer learning problem into two parts, one part is the transfer learning in homogenous space and the other part is in heterogeneous space. A multi-task learning model is proposed to solve the above problem; it uses one parameter to balance the amount of information brought by the old task versus the new task. This model is formalized so that it can be solved by classical one-class SVM except with a different kernel matrix. To select the control parameter, a kernel path solution method is proposed. It computes all the solutions along that introduced parameter and criteria are proposed to choose the corresponding optimal solution at given number of new samples. Experiments show that this model can give a smooth transition from the old detection system to the new one whenever it encounters a data distribution change. Moreover, as the proposed model can be solved by classical one-class SVM, online learning algorithms for one-class SVM are studied later in the purpose of getting a constant false alarm rate. It can be applied to the online learning of the proposed model directly

Estilos ABNT, Harvard, Vancouver, APA, etc.

Hermeth, Sébastian. "Mechanisms affecting the dynamic response of swirled flames in gas turbines". Thesis, Toulouse, INPT, 2012. http://www.theses.fr/2012INPT0064/document.

Texto completo da fonte

Resumo:

Les réglementations toujours plus drastiques sur les émissions de polluants ont conduit au développement de systèmes de combustion opérant en régimes pauvres qui sont malheureusement sujet aux instabilités thermo acoustiques. La capacité de la Simulation aux Grandes Echelles (SGE) à simuler des turbines à gaz industrielles complexes de grande puissance est mise en évidence au cours de ce travail de thèse. Tout d’abord, la SGE est appliquée à un brûleur académique et validée par comparaison à des mesures effectuées à l’Université de Berlin ainsi qu’à des simulations SGE effectuées avec OpenFOAM chez Siemens. Afin de déterminer la stabilité de ce bruleur le couplage entre l’acoustique et la combustion est modélisé par l’approche de type fonction de transfert de flamme (FTF). Suite à ces calcules et l’évaluation de la FTF les fluctuations du nombre de swirl sont identifiées comme un paramètre à même de modifier cette réponse de flamme. Après cette première étape de validation, une turbine à gaz industrielle est simulée en SGE pour deux géométries différentes du brûleur et pour deux points de fonctionnement. La FTF issue de ces calculs est peu influencée par les deux points de fonctionnement. A l’inverse, des légères modifications de la géométrie du swirler modifient les caractéristiques de la FTF montrant que plusieurs mécanismes sont en jeu. Ces mécanismes sont identifiés comme étant la vitesse d’entrée, les fluctuations de swirl et les fluctuations de fraction de mélange. Cette dernière est causée par: 1) la pulsation du débit de carburant injecté et 2) la trajectoire fluctuante des jets de carburant. Bien que le swirler soit conçu pour fournir un mélange le plus homogène possible, d’importantes hétérogénéités de mélange à l’entrée de la chambre de combustion sont présentes. Les perturbations de mélange se combinent avec les fluctuations de vitesse (et donc avec les fluctuations de swirl) aboutissant à des résultats de FTF différents. Un modèle étendu pour la FTF reliant le dégagement de chaleur à la vitesse d’entrée et à la fluctuation de fraction de mélange (modèle MISO) se révèle être une bonne solution pour ces systèmes complexes. Une analyse non linéaire montre en outre que l’amplitude de forçage conduit non seulement à une saturation de la flamme, mais aussi à un changement de la réponse de flamme. La saturation de la flamme n’est vérifiée que pour la FTF globale et le gain augmente localement avec une amplitude croissante. Pour ce système on notera enfin que la flamme linéaire, comme la flamme non linéaire, ne sont pas compactes: certaines zones pourtant situées l’une à coté de l’autre, ont des différences significatives de délai de FTF, montrant que certaines parties de la flamme amortissent l’excitation alors que d’autres l’amplifient
Modern pollutant regulation have led to a trend towards lean combustion systems which are prone to thermo-acoustic instabilities. The ability of Large Eddy Simulation (LES) to handle complex industrial heavy-duty gas turbines is evidenced during this thesis work. First, LES is applied to an academic single burner in order to validate the modeling against measurements performed at TU Berlin and against OpenFoam LES simulations done at Siemens. The coupling between acoustic and combustion is modeled with the Flame Transfer Function (FTF) approach and swirl number fluctuations are identified changing the FTF amplitude response of the flame. Then, an industrial gas turbine is analyzed for two different burner geometries and operating conditions. The FTF is only slightly influenced for the two operating points but slight modifications of the swirler geometry do modify the characteristics of the FTF showing that a simple model taking only into account the flight time is not appropriate and additional mechanisms are at play. Those mechanisms are identified being the inlet velocity, the swirl and the inlet mixture fraction fluctuations. The latter is caused by two mechanisms: 1) the pulsating injected fuel flow rate and 2) the fluctuating trajectory of the fuel jets. Although the diagonal swirler is designed to provide good mixing, effects of mixing heterogeneities at the combustion chamber inlet occur. Mixture perturbations phase with velocity (and hence with swirl) fluctuations and combine with them to lead to different FTF results. Another FTF approach linking heat release to inlet velocity and mixture fraction fluctuation (MISO model) shows further to be a good solution for complex systems. A nonlinear analysis shows that the forcing amplitude not only leads to a saturation of the flame but also to changes of the delay response. Flame saturation is only true for the global FTF and the gain increases locally with increasing forcing amplitude. Both, the linear and the nonlinear flames, are not compact: flame regions located right next to each other exhibited significant differences in delay meaning that at the same instant certain parts of the flame damp the excitation while others feed it

Estilos ABNT, Harvard, Vancouver, APA, etc.

Gori, Paul-Antoine. "Transmission dynamique d'énergie par induction : application au véhicule électrique". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC063/document.

Texto completo da fonte

Resumo:

L’autonomie limitée du véhicule électrique est le premier frein au développement du marché de l’électrique. La charge inductive dynamique répond à ce problème, en offrant de charger son véhicule en roulant. La principale difficulté est de gérer les variations importantes du couplage magnétique lors du déplacement du véhicule, et ce pendant le transfert de puissance. Une précédente thèse dans l’équipe de recherche sur un prototype de 3 kW avait abouti au concept de recopie de tension, qui stabilise la tension en sortie du coupleur malgré la variation de couplage, et facilite notablement la conception du convertisseur DC/DC faisant interface avec la batterie. La thèse présentée ici porte sur l’adaptation du système pour fonctionner de 20 kW à 30 kW. Cette montée en puissance n’est pas évidente, du fait des importantes contraintes électriques sur les bobines du coupleur (1,4 kV sur le système de 3 kW), et du champ rayonné limité par des références normatives. Tout d’abord, nous proposons une nouvelle commande du circuit résonnant, qui permet de modifier le dimensionnement pour aboutir à des contraintes électriques plus faibles tout en conservant la recopie de tension. Ensuite, une forme de bobine en huit est étudiée pour aider à réduire le champ rayonné. Enfin, une démarche de dimensionnement est établie pour la partie électrique du système, ainsi que pour le coupleur magnétique, alliant modèle analytique et simulations à éléments finis et réduisant considérablement les temps de simulations. Les résultats de l’évaluation des performances du système dimensionné pour la haute puissance sont prometteurs
The limited electric-vehicle distance range is the main reason hindering the development of the electric transportation market. Dynamic inductive charging solves this problem, offering the possibility to charge while driving. The main issue consists in handling wide magnetic coupling variations when the vehicle is moving, while charging. A previous thesis in the research team on a 3-kW prototype led to the concept of voltage copying, which stabilises the coupler output voltage despite the varying coupling, making it easier to design the DC/DC converter linking the coupler to the battery. The hereby thesis deals with adapting this system to transfer from 20 kW to 30 kW. Raising the power is no small matter, due to the high electrical constraints on the coupled coils (1.4 kV on the 3-kW system), and the radiated field, limited by standardised thresholds. Firstly, a new control of the resonating circuit is proposed, allowing to change the system design to get lower electrical constraints and maintaining voltage copying properties. Then, an eight-shape coil was investigated in order to reduce the radiated field. Finally, a design method was conceived for the electrical part of the system, as well as the magnetic coupler, using jointly analytical models and finite element simulations to reduce simulation times. Results of the evaluated performance for such a high-power system are quite promising

Estilos ABNT, Harvard, Vancouver, APA, etc.

Günther, Jan. "Caractérisation et optimisation des phénomènes de transfert dans un double bioréacteur à membranes". Thesis, Toulouse, INPT, 2009. http://www.theses.fr/2009INPT047G/document.

Texto completo da fonte

Resumo:

L'idée de base est de permettre à deux microorganismes de partager le même environnement tout en les maintenant séparées à l'aide d'une membrane perméable les retenant sélectivement. La principale contrainte résulte du transfert des composées d'intérêts limité par l'écoulement dans et autour des fibres ainsi que dans module et par le colmatage. Le double bioréacteur a membrane étudié dans cette thèse, de par son fonctionnement, alterne les cycles de filtration et rétrofiltration (ou rétrolavage), limitant ainsi en partie le colmatage. Ce travail de thèse s'est donc attaché à approfondir la connaissance des mécanismes de limitation au transfert mis en jeu lors de la filtration de fluide biologique complexes et évolutifs en fonction des conditions opératoires et des caractéristiques géométriques du module de filtration à fibres creuses. Dans cet objectif, sur la base des choix de configuration de module membranaire proposés dans cette étude, et afin de tendre vers une optimisation rationnelle de l'utilisation de ce dispositif, l'étude s'appuya sur l'utilisation d'outils de mécanique des fluides numériques, complétée par une approche expérimentale menée dans des conditions modèles. Les simulations réalisées par cette approche ont ainsi mis en évidence de grandes variations des vitesses de filtration le long de la fibre et ceci en lien direct avec une augmentation de la perte de charge à l'extérieur des fibres due au confinement induisant une baisse des performances de filtration. De manière similaire, un modèle numérique de formation de dépôt nous a permis d'évaluer l'effet du confinement de fibres. Il entraine une augmentation de pression dans la partie fluide externe induisant une forte variation de pertes de charges entrainant une répartition du dépôt le long de la fibre beaucoup plus inhomogène. Le retour du numérique à l'expérimental réalisé s'est attaché à décrire l'influence des conditions de mise oeuvre sur les performances de filtration du pilote. L'analyse méthodique de l'influence du sens de filtration et de la compacité dans le cas de fluides modèles (suspension de différents microorganismes / solutions de protéines modèles) et dans le cas de fluides biologiques évolutifs (milieux de fermentation + micro organismes) fut réalisée. L'ensemble de ces résultats nous permettent de donner des recommandations aux futurs utilisateurs du double bioréacteur à membranes
This work presents a specific bioreactor previously designed to study microbial interactions. In this process, the microbial species in two tanks are physically separated by a microfiltration membrane. In order to give to the microorganisms a molecular environment in each compartment similar to the one that would be obtained if the microbial cells were cultivated in the same reactor, two criteria have to be considered: (i) the flow rates between compartments have to be sufficient with respect to the microbial kinetics and (ii) all the molecular compounds of the medium that have an effect on the microorganism behaviour must pass through the membrane. The main constrain is due to transfer of component limited by the fluid flow in and around the fiber of the filtration module. This thesis has therefore committed to deepening the understanding of the mechanisms limiting the transfer involved during the filtration of biological fluid complex according to operating conditions and geometric characteristics of the hollow fiber module of filtration. For this purpose, based on the choice of membrane module configuration proposed in this study, and to strive for a rational optimization of the use of this device, the study relied on the use of CFD tools, supplemented by an experimental approach conducted under models conditions. The numerical simulations of fluid flow have shown a modification of the axial filtration velocity profile with packing density. Similarly, a numerical model of cake deposit was developed and show difference of cake growth along the fiber with packing density. Two experimental hollow fiber modules with two packing densities were tested with clean water and biological fluid, and showed good agreement with the numerical data. These results underline the variations of filtration velocity along the fiber that will allow some predictions on fouling deposit to be done

Estilos ABNT, Harvard, Vancouver, APA, etc.

Gnambode, Sourou. "Simulation des grandes échelles des transferts thermo-convectifs dans les écoulements turbulents d'un fluide non-Newtonien en conduite cylindrique". Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1143/document.

Texto completo da fonte

Resumo:

Cette thèse est une contribution à la simulation numérique des transferts de quantité de mouvement et de chaleur dans les écoulements turbulents de fluides non-Newtoniens dans une conduite cylindrique fixe. La viscosité du fluide utilisé est décrite par la loi d'Ostwald de Waele. Deux modèles sous-mailles dans l'approche des simulations des grandes échelles ont été considérés : le modèle dynamique de Germano et al. (1991) et le modèle de Smagorinsky non-Newtonien. Ils sont utilisés pour décrire les mécanismes physiques mis en jeu dans les écoulements isothermes de ces fluides à rhéologie complexe. Les transferts thermiques sont simulés avec le modèle de Smagorinsky non-Newtonien. Ces derniers sont traités en deux parties. La première concerne les échanges de chaleur sans influence sur la distribution des vitesses. Il s'agit des écoulements non-thermo dépendants ou écoulements isothermes. La deuxième partie concerne la résolution des écoulements thermo dépendants qui mettent l'accent sur les modifications induites par le couplage vitesse-température. Les champs turbulents sont analysés statistiquement en moyennant dans le temps et dans l'espace (suivant les directions périodiques) les champs instantanés de vitesse et de température pour établir les profils moyens de vitesse et de température, les rms, la tension de Reynolds, les flux de chaleur, les moments d'ordre plus élevé (coefficients de dissymétrie et d'aplatissement), les pdf (fonction de densité de probabilté), les jpdf (fonction de densité de probabilité jointe), le coefficient de frottement, le nombre de Nusselt... Ces différentes grandeurs sont analysées en fonction des divers paramètres qui gouvernent le problème: les nombres de Reynolds et de Prandtl, l’indice d'écoulement et le nombre de Pearson
This thesis is a numerical contribution of momentum and heat transfer of turbulent pipe flows of non-Newtonian fluids. The apparent viscosity of the fluid is modelled by a power-law (Ostwald de Waele model). Two models subgrid of LES were considered: the dynamic model of Germano et al. (1991) and model Smagorinsky non-Newtonian. They are used to describe the physical mechanisms involved in the isothermal flow of these complex rheology fluids. Heat transfer are simulated with the model of non-Newtonian Smagorinsky. These are processed in two parts. The first concerns the heat exchange without affecting the velocity distribution. This is non-thermo dependent flow or isothermal flow. The second part concerns the resolution of thermo dependent flows that focus on changes induced by the temperature-velocity coupling. The turbulent fields are analyzed statistically by averaging over time and space (according to the periodic directions) the instantaneous field of velocity and temperature to establish the average profiles of velocity and temperature, the root mean square of turbulent fluctuations (rms), Reynolds stress, the heat flow, the moments of higher order (skewness and flatness), the pdf (probability density function), the jpdf (attached probability density function), the coefficient of friction, the number of Nusselt ... These differents variables are analyzed for various parameters governing the problem: the Reynolds and Prandtl flow index and the number of Pearson

Estilos ABNT, Harvard, Vancouver, APA, etc.

Molenaar, Ciska. "Caractérisation biomécanique du transfert latéral chez la personne vivant avec une lésion de la moelle épinière : influence de facteurs environnementaux". Thesis, Valenciennes, 2018. http://www.theses.fr/2018VALE0032/document.

Texto completo da fonte

Resumo:

Les personnes vivant avec une lésion de la moelle épinière (LMÉ) dépendent de l'utilisation d'un fauteuil roulant (FR) pour les déplacements de la vie quotidienne. Une des activités, associée à l'utilisation du FR, la plus exigeante est le transfert latéral en position assise, nécessaire pour entrer et sortir du FR. Cette activité, de part sa sollicitation importante des membres supérieurs et les nombreuses répétitions, expose les personnes vivant avec une LMÉ à plusieurs risques de blessures, dont les troubles musculo-squelettiques (TMS) et le risque de chute. Ce travail de doctorat vise à évaluer l'exposition à ces risques, pendant le transfert latéral parallèle, et plus particulièrement, comment l'environnement peut influencer cette exposition. L'évaluation mise en place utilise des outils d'analyse de mouvement (système de capture de mouvement, plateformes de force et électromyographie) pour calculer les positions articulaires, les efforts externes et internes, les activations musculaires et les stratégies de contrôle postural mis en oeuvre pour la réalisation du transfert. Une analyse statistique des résultats est utilisée pour déterminer les différences apportées par l'utilisation et la hauteur d'un accoudoir. Les résultats sont synthétisés et combinés afin d'aboutir à une conclusion intégrative sur l'exposition aux risques de blessures durant les transferts, réalisés par les personnes vivant avec une LMÉ
People living with spinal cord injury (SCI) depend on a wheelchair for daily life mobility. One of the most strenuous activities associated with wheelchair use is the performance of lateral sitting transfers, needed to get in and out of their wheelchair. Through the high demand on the upper extremities and many repetitions, this activity exposes people living with SCI to injury risks, between which the development of musculoskeletal disorders and traumatic lesions due to falls. This PhD thesis aims to evaluate the exposure to these risks during parallel lateral sitting transfers, and more in particular how the environment might influence this exposure. The evaluation realized uses instruments for human movement analysis (motion capture, force plates and electromyography) to calculate joint angles, external and internal mechanical efforts, muscular activation and postural control strategies used to perform transfers. A statistical analysis of the results determines the modifications induced by the use and the height of an armrest. The results are synthesized and combined to generate an integrative conclusion on the injury exposure risk during transfers realized by people living with SCI

Estilos ABNT, Harvard, Vancouver, APA, etc.

Zerdane, Serhane. "Exploring photoswitching pathways in photomagnetic materials with ultrafast optical and X-ray spectroscopies". Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1S150/document.

Texto completo da fonte

Resumo:

Ce travail de thèse porte sur l’étude de la dynamique femtoseconde de photo-commutation de matériaux moléculaires bistables, à l’aide d’expériences pompe-sonde basées sur les spectroscopies optiques et rayons X. Une partie des expériences a été réalisée sur synchrotron et X-FEL (X-ray Free Electron Laser). La première partie de la thèse, qui est consacrée à l’étude de systèmes à transition de spin non-octaédriques, a révélé différents chemins de transformations sur la surface de potentiel, associés à différents mécanismes de changement d’état électronique et modulant la cohérence de la dynamique structurale pilotant le processus. La seconde partie porte sur l’étude d’analogues du bleu de Prusse (CoFe) où les expériences ultra-rapides ont permis de d’étudier les dynamiques de transformation autour des sites de fer et de cobalt
This thesis focuses on the study of the femtosecond photoswitching dynamic in the bistable molecular materials, using the pump-probe experiments which are based on the optical and x-ray spectroscopies. Part of these experiments was performed at synchrotron and X-FEL (X-ray Free Electron Laser). The first part of the thesis, which is devoted to the study of non-octahedral spin transition systems, revealed different pathways of transformation on the potential surface. The second part focuses on the study of the Prussian Blue Analogues (CoFe), where the ultra-fast experiments allowed to follow the dynamics around the two metal ions

Estilos ABNT, Harvard, Vancouver, APA, etc.

Wu, Jing. "Modélisation dynamique d’un système couplé pompe à chaleur – stockage thermique par matériaux à changement de phase : approche systémique et validation expérimentale". Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10167/document.

Texto completo da fonte

Resumo:

Dans le domaine de la réfrigération des bâtiments, le couplage d'une pompe à chaleur (PAC) avec un stockage d'énergie thermique est un moyen significatif pour en réduire le coût de fonctionnement énergétique et pour mieux dimensionner les équipements. Un prototype de ce système couplé avec un stockage thermique par MCP (Matériaux à Changement de Phase) est construit et mis en oeuvre dans le cadre du projet ANR ACLIRSYS (Commande avancée des systèmes de réfrigération à faible inertie). L'objectif de cette thèse est d'en proposer un modèle dynamique en vue de sa commande. Dans les échangeurs de la PAC, le fluide frigorigène peut être vapeur, liquide ou un mélange des deux tandis que le MCP du stock peut être solide, liquide ou un mélange des deux. Par conséquent, un modèle de type hybride est nécessaire pour tenir compte des différentes configurations possibles afin de résoudre les équations de bilan de masse et d'énergie dont les expressions diffèrent en fonction de ces configurations. Dans ce travail, des modèles statiques sont utilisés pour le compresseur et le détendeur de la PAC, et les modèles des échangeurs de la PAC et du stock sont basés sur une représentation des écoulements par une cascade de Réacteurs Parfaitement Agités Continues (RPAC). Le mécanisme de commutation entre les diverses configurations est conçu pour garantir la continuité de l'évolution simulée du système. Cette commutation est effectuée par des opérations matricielles, ce qui permet d'aboutir à une représentation globale et très compacte du système. Les propriétés thermodynamiques du fluide frigorigène et leurs dérivées partielles sont déterminées de façon analytique à l'aide d'une équation d'état. Deux versions du modèle du stock sont proposées. Une version simplifiée du modèle de surfusion et une version plus détaillée basée sur la méthode des bilans de population. Des données expérimentales recueillies sur le prototype ont permis de valider le modèle développé. Des expérimentations en régime transitoire ont été réalisées en faisant varier les conditions opératoires. Ces données concernent le fonctionnement de la PAC seule, du stock seul et du système couplé. Un bon accord a été obtenu entre les résultats numériques et les données expérimentales
In the area of buildings refrigeration, the use of thermal energy storage coupled with heat pump is a significant way for reducing the operating costs and optimizing the design of equipment. A prototype of refrigeration-PCM (Phase Change Material) energy storage system is built and implemented within the framework of the project ACLIRSYS (Advanced Control for Low Inertia Refrigeration Systems), funded by the French National Research Agency. The objective of my PhD thesis is to propose a dynamical physical model for the complete system. Within the evaporator and condenser of the heat pump, the refrigerant can be liquid, vapor or mixture of both, while the storage media can be solid, liquid or a mixture of both. Therefore, it is necessary to consider the discrete events associated to phase changes in order to solve the energy and mass balances in different configurations. In this work, static models are used for the compressor and the expansion valve of the heat pump. The heat exchangers of the heat pump and the storage models are based on a representation of the fluid flows by a cascade of Continuous Stirred Tank Reactors (CSTRs). In order to assure the continuity of system evolution, the switching mechanism between different configurations is established. This switching is performed by matrix operations, which permit to achieve a global and very compact representation of the system. The thermodynamic properties of the refrigerant and their partial derivatives are analytically determined by using an equation of state. Two versions of the model for the storage are proposed. A simplified version where the supercooling is assumed to take place at a constant temperature and a more detailed version based on the population balance equations. Experimental data from the prototype has been used to validate the developed model. Experiments in transient states were performed by varying the operating conditions. These date relate to the functioning of the heat pump alone, the storage alone and the coupled system. A very good agreement between the numerical results and experimental data was obtained

Estilos ABNT, Harvard, Vancouver, APA, etc.

Mais fontes

Livros sobre o assunto "Dynamic of transfert"

Barrett, Terence W., e Herbert A. Pohl, eds. Energy Transfer Dynamics. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-71867-0.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Blank, Stephen. The dynamics of Russian weapon sales to China. Carlisle Barracks, Pa: Strategic Studies Institute, U.S. Army War College, 1997.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Willmott, A. John. Dynamics of regenerative heat transfer. New York: Taylor & Francis, 2002.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

L, Andrews David. Resonance energy transfer. New York: Wiley, 1999.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Cook, Kaitlin Jennifer. Zeptosecond Dynamics of Transfer‐Triggered Breakup. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96017-3.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Burghardt, Irene, V. May, David A. Micha e E. R. Bittner, eds. Energy Transfer Dynamics in Biomaterial Systems. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02306-4.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

V, May, Micha David A, Bittner E. R e SpringerLink (Online service), eds. Energy Transfer Dynamics in Biomaterial Systems. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2009.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Vekshin, N. L. Energy transfer in macromolecules. Bellingham, Wash: SPIE Optical Engineering Press, 1997.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Ver-rückte Kulturen: Zur Dynamik kultureller Transfers. Tübingen: Stauffenburg, 2003.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

B. Wieb van der Meer. Resonance energy transfer: Theory and data. New York: VCH, 1994.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Mais fontes

Capítulos de livros sobre o assunto "Dynamic of transfert"

Bellanova, Piero, Bruno Munari e Alfredo Trimarco. "Dynamik Futurismus". In Edition Transfer, 54–87. Vienna: Springer Vienna, 2012. http://dx.doi.org/10.1007/978-3-7091-0993-9_3.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Barrientos, Armando. "Political Responses of Conditional Income Transfer Recipients: A Mechanism Approach". In Global Dynamics of Social Policy, 403–29. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-91088-4_13.

Texto completo da fonte

Resumo:

AbstractThis chapter studies whether participation in conditional income transfer programmes in Latin America generates observable political responses and whether these responses indicate improvements in the political inclusion of participants. It adopts a causal mechanism approach to study political responses to transfer receipt, seeking to cast light on the links existing between transfer receipt and political outputs and outcomes among recipients. A review of available literature helps identify three possible causal mechanisms: a support for redistribution mechanism; a bureaucratic mechanism encouraging political engagement; and a cognitive change mechanism. Analysis of empirical counterparts using attitudinal data from the AmericasBarometer for the period 2010–2019 confirms the relevance of these mechanisms for our understanding of political responses of conditional income transfers recipients.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Rimrott, Fred P. J. "Transfer". In Introductory Orbit Dynamics, 51–70. Wiesbaden: Vieweg+Teubner Verlag, 1989. http://dx.doi.org/10.1007/978-3-322-90338-9_4.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Kruppa, Boris, Martin Pitschmann e Johannes Straub. "Dynamic Light Scattering". In Heat and Mass Transfer, 153–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56443-7_10.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Joos, Paul, Valentin B. Fainerman, Giuseppe Loglio, Emmi H. Lucassen-Reynders, Reinhard Miller e Peter Petrov. "Transfer Controlled Adsorption Kinetics". In Dynamic Surface Phenomena, 258–84. London: CRC Press, 2023. http://dx.doi.org/10.1201/9780429070921-9.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Grimley, T. B. "Nonadiabatic Processes in Surface Physics". In Energy Transfer Dynamics, 3–10. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-71867-0_1.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Barrett, T. W. "On Molecular Control". In Energy Transfer Dynamics, 93–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-71867-0_10.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Scaife, W. G. "Structure of Liquid 1-Alkanols and Some Isomers". In Energy Transfer Dynamics, 98–111. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-71867-0_11.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Jonscher, A. K. "Surface Transport in Time and Frequency Domains". In Energy Transfer Dynamics, 112–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-71867-0_12.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Tisza, L. "Absolute Entropy and the Problem of Microscopic Measurement". In Energy Transfer Dynamics, 136–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-71867-0_13.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Trabalhos de conferências sobre o assunto "Dynamic of transfert"

Luna, Juan J., Daniel Tocados, Pilar Martínez-Jimenez, Vicente Barranco, Marta Varo, George Maroulis e Theodore E. Simos. "Dynamic Analysis of Heat Transfers by Laplace Transform". In COMPUTATIONAL METHODS IN SCIENCE AND ENGINEERING: Advances in Computational Science: Lectures presented at the International Conference on Computational Methods in Sciences and Engineering 2008 (ICCMSE 2008). AIP, 2009. http://dx.doi.org/10.1063/1.3225369.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Zhu, Chenyue, Yuying Yan e Mark Alston. "Molecular dynamic simulation of substrate wettability and spreading dynamics of nanodroplets". In International Heat Transfer Conference 17. Connecticut: Begellhouse, 2023. http://dx.doi.org/10.1615/ihtc17.130-120.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Averchenko, A. P., e B. D. Zhenatov. "Hartley transform as alternative to fourier transform in digital data processing systems". In 2014 Dynamics of Systems, Mechanisms and Machines (Dynamics). IEEE, 2014. http://dx.doi.org/10.1109/dynamics.2014.7005633.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Tsyruk, S. A., S. I. Gamazin, Y. N. Ryzhkova e K. F. Charafeddine. "Determination of Source Fault Using Fast Acting Automatic Transfer Switch". In 2018 Dynamics of Systems, Mechanisms and Machines (Dynamics). IEEE, 2018. http://dx.doi.org/10.1109/dynamics.2018.8601484.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Chye, E. U., e A. B. Shein. "Determination of transfer function self-excited inverters for problems automatic control". In 2016 Dynamics of Systems, Mechanisms and Machines (Dynamics). IEEE, 2016. http://dx.doi.org/10.1109/dynamics.2016.7818994.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Pugin, E. V., e A. L. Zhiznyakov. "Filtering of meaningful features of fuzzy hough transform". In 2016 Dynamics of Systems, Mechanisms and Machines (Dynamics). IEEE, 2016. http://dx.doi.org/10.1109/dynamics.2016.7819068.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Girshin, S. S., V. N. Gorjunov, A. Ya Bigun, E. V. Petrova e E. A. Kuznetsov. "Overhead power line heating dynamic processes calculation based on the heat transfer quadratic model". In 2016 Dynamics of Systems, Mechanisms and Machines (Dynamics). IEEE, 2016. http://dx.doi.org/10.1109/dynamics.2016.7819013.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Stukach, Oleg V., e Arman B. Mirmanov. "Behavioral Modeling a Wireless Borehole Communication Channel for Increase of the Telemetry Transfer Accuracy". In 2018 Dynamics of Systems, Mechanisms and Machines. IEEE, 2018. http://dx.doi.org/10.1109/dynamics.2018.8601423.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Osipov, Dmitry S., Nadezda N. Dolgikh, Vladimir N. Goryunov e Dmitry V. Kovalenko. "Algorithms of packet wavelet transform for power determination under nonsinusoidal modes". In 2016 Dynamics of Systems, Mechanisms and Machines (Dynamics). IEEE, 2016. http://dx.doi.org/10.1109/dynamics.2016.7819059.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Wang, Yun. "Dynamic Characteristics of Polymer Electrolyte Fuel Cell and Hydrogen Tank". In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-23005.

Texto completo da fonte

Resumo:

In this paper, we develop 3D dynamic models for polymer electrolyte fuel cells (PEFCs) and hydrogen tanks, respectively. The PEFC model considers the key components of a single PEFC and couples the various mechanisms that govern fuel cell transient including the electrochemical double-layer behavior, species transport, heat transfer, liquid water dynamics, and membrane water uptake. The hydrogen tank model includes a 3D description of the hydrogen discharging kinetics coupled with mass/heat transport in a LaNi5–based hydrogen tank. Efforts are made to discuss the dynamic characteristics of the PEFC and hydrogen tank together with the possible coupling of the two systems. Local electrochemical and hydride reaction rates, transport processes and associated limiting factors are investigated.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Relatórios de organizações sobre o assunto "Dynamic of transfert"

Aliprantis, Dionissi, Daniel R. Carroll e Eric R. Young. The Dynamics of the Racial Wealth Gap. Federal Reserve Bank of Cleveland, novembro de 2022. http://dx.doi.org/10.26509/frbc-wp-201918r.

Texto completo da fonte

Resumo:

What drives the dynamics of the racial wealth gap? We answer this question using a dynamic stochastic general equilibrium heterogeneous-agents model. Our calibrated model endogenously produces a racial wealth gap matching that observed in recent decades along with key features of the current cross-sectional distribution of wealth, earnings, intergenerational transfers, and race. Our model predicts that equalizing earnings is by far the most important mechanism for permanently closing the racial wealth gap. One-time wealth transfers have only transitory effects unless they address the racial earnings gap, and return gaps only matter when earnings inequality is reduced.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Ter-Minassian, Teresa, e Andrés Muñoz Miranda. Options for a Reform of the Mexican Intergovernmental Transfer System in Light of International Experiences. Inter-American Development Bank, abril de 2022. http://dx.doi.org/10.18235/0004217.

Texto completo da fonte

Resumo:

This paper focuses on the design of intergovernmental transfers to reduce vertical and horizontal fiscal imbalances and improve the performance of subnational governments. It provides an overview of international experiences, especially of large federations, with a view to devising viable options for reform of the transfer system in Mexico. While there is no one-size-fits-all ideal model of design and implementation of intergovernmental transfer systems, this analysis points to some lessons that can inform reforms, including the need to view intergovernmental transfers as an integral part of the overall system of intergovernmental fiscal relations; the use of different types of intergovernmental transfers that are best suited to fulfill different objectives; and the incorporation of equalization schemes to address regional disparities. In the light of these experiences, we find that the current Mexican transfer system is too fragmented, is linked to volatile oil revenues, involves substantial discretion in the allocation of a significant portion of the transfers, and lacks sufficient equalizing power. This paper presents and discusses possible reform options and demonstrates that it is altogether possible to reduce transfer dependence to promote effort and fiscal responsibility; simplify the system to increase predictability and ease its administration; eliminate discretion to increase transparency and establish stronger subnational budget constraints; and improve fiscal equalization to promote equity in subnational service delivery. Careful consideration of political economy dynamics is given in the simulations of possible reforms, with a view to minimizing short-term gains and losses as well as political opposition.

Estilos ABNT, Harvard, Vancouver, APA, etc.

McGarry, Kathleen. Dynamic Aspects of Family Transfers. Cambridge, MA: National Bureau of Economic Research, outubro de 2012. http://dx.doi.org/10.3386/w18446.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Balman, Mehmet. Dynamic Adaptation for High-Performance Data Transfers. Office of Scientific and Technical Information (OSTI), janeiro de 2011. http://dx.doi.org/10.2172/1165474.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Aggarwal, Shilpa, Jenny Aker, Dahyeon Jeong, Naresh Kumar, David Sungho Park, Jonathan Robinson e Alan Spearot. The Dynamic Effects of Cash Transfers to Agricultural Households. Cambridge, MA: National Bureau of Economic Research, maio de 2024. http://dx.doi.org/10.3386/w32431.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Chien, YiLi, e Yi Wen. Optimal Dynamic Tax-Transfer Policies in Heterogeneous-Agents Economies. Federal Reserve Bank of St. Louis, 2023. http://dx.doi.org/10.20955/wp.2023.009.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Sim, Alexander, Mehmet Balman, Dean N. Williams, Arie Shoshani e Vijaya Natarajan. Bulk Data Movement for Climate Dataset: Efficient Data Transfer Management with Dynamic Transfer Adjustment. Office of Scientific and Technical Information (OSTI), julho de 2010. http://dx.doi.org/10.2172/991958.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Raman, Vivek, Pronita Agrawal, Josephine Aquino e Jane Parry. How Dynamic Country Knowledge Plans Help Transform ADB’s Value to Clients. Asian Development Bank, janeiro de 2024. http://dx.doi.org/10.22617/brf240007.

Texto completo da fonte

Resumo:

This brief tracks the evolution of ADB’s dynamic country knowledge plans (CKP) and outlines how they have been tailored to better meet the complex needs of countries in Asia and the Pacific and deliver on their national priorities. The brief explains how dynamic CKPs developed as a qualitative approach that centers on the quality and impact of ADB’s knowledge products. It assesses learnings from pilot programs and shows how dynamic CKPs have been rolled out. It shows why prioritizing the quality and impact of knowledge products leads to better coordination, monitoring, and evaluation and helps countries achieve their development objectives.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Milner, Stuart, Christopher C. Davis, Zygmunt J. Haas e P. R. Kumar. Quantifying and Assuring Information Transfer in Dynamic Heterogeneous Wireless Networks. Fort Belvoir, VA: Defense Technical Information Center, julho de 2012. http://dx.doi.org/10.21236/ada577180.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Kenneth G. Spears. Final Report: Vibrational Dynamics in Photoinduced Electron Transfer. Office of Scientific and Technical Information (OSTI), abril de 2006. http://dx.doi.org/10.2172/881273.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Oferecemos descontos em todos os planos premium para autores cujas obras estão incluídas em seleções literárias temáticas. Contate-nos para obter um código promocional único!