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Mélange Et Micro-Mélange Dans Un Réacteur À Multiples Jets Cisaillés
ISBN: 9783838188959 / Francuski / Miękka / 344 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Ce travail vise la description fine du micro-mA(c)lange. Pour dA(c)crire cette quantitA(c), les rA(c)actions chimiques se sont rA(c)vA(c)lA(c)es Aatre l'outil le plus ingA(c)nieux (Dimotakis, 2005). Pourtant, trA]s peu d'A(c)tudes expA(c)rimentales y ont A(c)tA(c) consacrA(c)es. Dans cette A(c)tude, nous nous intA(c)ressons au cas d'un A(c)coulement dont le motif de base est un jet cisaillA(c) entourA(c) de 4 jets A contre-courant pour deux gA(c)omA(c)tries distinctes: une A fort taux de confinement et une seconde pour laquelle le taux de confinement reste faible. Ces deux configurations sont...
Ce travail vise la description fine du micro-mA(c)lange. Pour dA(c)crire cette quantitA(c), les rA(c)actions chimiques se sont rA(c)vA(c)lA(c)es Aatre...
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cena:
446,85 |
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Ocherki Istorii Razvitiya Teorii Mekhanicheskikh Kolebaniy
ISBN: 9783659521546 / Rosyjski / Miękka / 412 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Kolebaniyami nazyvaetsya dvizhenie ili izmenenie sostoyaniya, obladayushchee toy ili inoy stepen'yu povtoryaemosti. Kolebaniya vstre-chayutsya ne tol'ko v tekhnike, no i v prirode, i v obshchestve. Nesmotrya na raznoobrazie izuchaemykh ob"ektov, yavleniy i metodov ikh issledovaniya, zachastuyu zaimstvovannykh iz drugikh nauk, teoriya kolebaniy yavlyaetsya samostoyatel'noy naukoy, imeyushchey obshchie modeli i metody issledovaniy, svyazannykh s naibolee slozhnym matematicheskim apparatom. Nesmotrya na vazhnost' kolebatel'nykh protsessov v tekhnike i samoy teorii kolebaniy v razvitii nauki, a...
Kolebaniyami nazyvaetsya dvizhenie ili izmenenie sostoyaniya, obladayushchee toy ili inoy stepen'yu povtoryaemosti. Kolebaniya vstre-chayutsya ne tol'...
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cena:
442,38 |
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Etude Du Rayonnement Acoustique Des Obstacles de Révolution
ISBN: 9783841797322 / Francuski / Miękka / 176 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. La premiA]re partie dA(c)crit l'A(c)tude expA(c)rimentale des effets de diffraction sur la mesure de l'intensitA(c) acoustique. Cette A(c)tude confirme que l'influence de la diffraction peut Aatre prise en compte en remplaAant, dans l'expression de l'intensitA(c) acoustique, la sA(c)paration gA(c)omA(c)trique, dx, par une sA(c)paration apparente, ' app Dans un deuxiA]me temps, A partir de configurations gA(c)omA(c)triques dont les solutions exactes sont connues nous calculons les caractA(c)ristiques propres A l'onde rayonnA(c)e et soulignons les raisons pour lesquelles cette sA(c)paration...
La premiA]re partie dA(c)crit l'A(c)tude expA(c)rimentale des effets de diffraction sur la mesure de l'intensitA(c) acoustique. Cette A(c)tude confirm...
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cena:
187,41 |
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Modelado numérico de un interfaz sólido/fluido con erosión
ISBN: 9783639555578 / Hiszpański / Miękka / 176 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. La erosion interna de los suelos puede definirse como una migracion de particulas generada por una filtracion de agua. Se manifiesta en el seno del suelo bajo los cimientos de las obras o dentro de la obra en tierra como presas de gravedad. Las obras hidraulicas de tierra, tales como los diques o presas, presentan una vulnerabilidad con respecto al fenomeno de la erosion interna. Se encuentren bajo el riesgo omnipresente de este fenomeno que puede inducir en algunos casos su ruptura completa. Tras una fase de iniciacion de la erosion que resulta en ocasiones muy lenta, el mecanismo de erosion...
La erosion interna de los suelos puede definirse como una migracion de particulas generada por una filtracion de agua. Se manifiesta en el seno del su...
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cena:
357,39 |
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Nonlinear Vibration Analysis of Shallow Shells - A New Approach
ISBN: 9783659110931 / Angielski / Miękka / 76 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The application of constant deflection contour method is justified in this book and appears to be simpler than existing methods.The present method offers a new approach to deal with problems involving large amplitude vibrations of plates and shallow shells. The significance of this method lies in the fact that the basic governing equations reduce to a set of ordinary differential equations. The present method can be applied to study static as well as dynamic behavior of plates and shells having arbitrary shaped boundaries for which other methods may fail. The present method relies heavily...
The application of constant deflection contour method is justified in this book and appears to be simpler than existing methods.The present method off...
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cena:
106,90 |
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Adaptive Controller for Biped Robot Mimicking Human Gait
ISBN: 9783659152795 / Angielski / Miękka / 92 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This book presents a practical approach to teach the biped humanoid robot to ambulate through human imitation. For this purpose, a human body motion capturing system is developed using tri-axis accelerometers (attached to human legs and torso). The tilt angle patterns information from the human is transformed and estimated to control and teach various ambulatory skills for humanoid robot bipedalism. Lyapunov stability based model reference adaptive controller (MRAC) technique is implemented to address the poorly known actuator dynamic characteristics and unpredictable variations of the biped...
This book presents a practical approach to teach the biped humanoid robot to ambulate through human imitation. For this purpose, a human body motion c...
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cena:
245,56 |
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Analysis on Mhd Free Convection Flow Within Trapezoidal Enclosures
ISBN: 9783659154034 / Angielski / Miękka / 72 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Free convection in trapezoidal enclosures has received considerable attention because of its importance in several thermal engineering problems, for example, in the design of electronic devices, solar thermal receivers, uncovered flat plate solar collectors having rows of vertical strips geothermal reservoirs etc. In my work the title named "Analysis on MHD Free Convection Flow Within Trapezoidal Enclosures" has been studied. In this study, free convection within a trapezoidal enclosure for uniformly heated bottom wall, insulated top wall and isothermal side walls with inclination angles (f)...
Free convection in trapezoidal enclosures has received considerable attention because of its importance in several thermal engineering problems, for e...
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cena:
129,27 |
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Teoriya formoobrazovaniya obemnykh izdeliy v rezhimakh sverkhplastichnosti
ISBN: 9783659394942 / Rosyjski / Miękka / 240 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Dano analiticheskoe reshenie zadach optimizatsii i upravleniya tekhnologicheskimi protsessami shtampovki, pressoprokatki i pressovaniya v rezhimakh sverkhplastichnosti. Ob"ektom issledovaniya yavlyayutsya promyshlennye alyuminievye splavy, effekt sverkhplastichnosti kotorykh razvivaetsya v protsesse strukturnogo fazovogo perekhoda - dinamicheskoy rekristallizatsii. Pokazana vozmozhnost optimalnym sochetaniem energosilovykh i kinematicheskikh parametrov upravlyat pri nagreve i deformatsii strukturnym sostoyaniem materiala i prognozirovat izgotovlenie detaley i polufabrikatov s napered...
Dano analiticheskoe reshenie zadach optimizatsii i upravleniya tekhnologicheskimi protsessami shtampovki, pressoprokatki i pressovaniya v rezhimakh s...
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cena:
343,97 |
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Identification de Propriétés Élastiques À Partir de Mesures de Champs
ISBN: 9783841628985 / Francuski / Miękka / 232 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. La caractA(c)risation des propriA(c)tA(c)s matA(c)rielles basA(c)e sur le dialogue essai-calcul requiert des prA(c)cautions quant A la prise en compte des grandeurs physiques mises en jeu, aussi bien mesurA(c)es que calculA(c)es. Ce travail traite de l'identification de propriA(c)tA(c)s A(c)lastiques, pouvant Aatre homogA]nes ou hA(c)tA(c)rogA]nes, isotropes ou anisotropes, en exploitant des mesures de champs. Cela nA(c)cessite l'utilisation de mA(c)thodes adaptA(c)es A la richesse de ces mesures et soulA]ve les problA(c)matiques de la prise en compte de mesures perturbA(c)es et du choix des...
La caractA(c)risation des propriA(c)tA(c)s matA(c)rielles basA(c)e sur le dialogue essai-calcul requiert des prA(c)cautions quant A la prise en compte...
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cena:
402,12 |
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Identification d'Impact
ISBN: 9783841793713 / Francuski / Miękka / 132 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Nous rA(c)solvons le problA]me inverse de reconstruction de la force d'un impact par dA(c)convolution rA(c)gularisA(c)e. Nous prA(c)cisons le contexte de cette inversion et sa sensibilitA(c) A l'emplacement des capteurs. Nous considA(c)rons ensuite la localisation en exprimant le problA]me sous la forme d'un programme mathA(c)matique nonlinA(c)aire avec contraintes. Nous effectuons sa rA(c)solution par l'algorithme d'optimisation essaim de particules. Nous dA(c)montrons l'efficacitA(c) de cet algorithme en testant sa robustesse sous l'effet de bruit de mesure.
Nous rA(c)solvons le problA]me inverse de reconstruction de la force d'un impact par dA(c)convolution rA(c)gularisA(c)e. Nous prA(c)cisons le contexte...
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cena:
276,87 |
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Suivi de L État de Santé Des Structures
ISBN: 9783841793874 / Francuski / Miękka / 136 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. La reconstruction de force d'impact se produisant sur une structure A(c)lastique a A(c)tA(c) conduite par rA(c)solution du problA]me de dA(c)convolution associA(c) A une matrice de type Toeplitz. La dA(c)composition gA(c)nA(c)ralisA(c)e en valeurs singuliA]res a A(c)tA(c) utilisA(c)e pour rA(c)gulariser l'opA(c)ration d'inversion. La deuxiA]me partie de ce travail a A(c)tA(c) consacrA(c)e A l'identification de dommage dans le cas d'une structure de type plaque de Mindlin. L'identification a A(c)tA(c) effectuA(c)e par une mA(c)thode vibratoire qui s'appuie sur la mesure des changements...
La reconstruction de force d'impact se produisant sur une structure A(c)lastique a A(c)tA(c) conduite par rA(c)solution du problA]me de dA(c)convoluti...
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cena:
276,87 |
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Fizicheskie Yavleniya V Pole Moshchnogo UL'Trazvuka
ISBN: 9783659195556 / Rosyjski / Miękka / 80 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Ispol'zovanie moshchnykh ul'trazvukovykh kolebaniy v tekhnologicheskikh protsessakh polucheniya i obrabotki materialov pozvolyaet sozdavat' novye sposoby obrabotki ili sushchestvenno intensifitsirovat' sushchestvuyushchie. Ukazannye protsessy protekayut v zhidkoy srede, poetomu chrezvychayno vazhnym yavlyaetsya izuchenie mekhanizma i zakonomernostey tekh yavleniy, nablyudaemykh v pole moshchno-go ul'trazvuka. V pervuyu ochered' eto kavitatsiya i svyazannaya s ney kavitatsionnaya eroziya i akusticheskie potoki. V knige na osnove bazovykh predstavleniy akustiki analiziruyutsya osobennosti...
Ispol'zovanie moshchnykh ul'trazvukovykh kolebaniy v tekhnologicheskikh protsessakh polucheniya i obrabotki materialov pozvolyaet sozdavat' novye spos...
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cena:
129,27 |
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Fundamentals of Continuum Mechanics
ISBN: 9781118479919 / Angielski / Miękka / 224 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. A concise introductory course text on continuum mechanics Fundamentals of Continuum Mechanics focuses on the fundamentals of the subject and provides the background for formulation of numerical methods for large deformations and a wide range of material behaviours. It aims to provide the foundations for further study, not just of these subjects, but also the formulations for much more complex material behaviour and their implementation computationally. This book is divided into 5 parts, covering mathematical preliminaries, stress, motion and deformation,... A concise introductory course text on continuum mechanics Fundamentals of Continuum Mechanics focuses on the fundamentals of t... |
cena:
340,00 |
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Vectors and Scalars for Secondary School Students: Deal for JAMB and WAEC candidates
ISBN: 9781481188722 / Angielski / Miękka / 28 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The way in which science is studied has changed significantly over the years; there is more contemporary emphasis on establishing understanding that can be applied even to problems that may have never risen before. In this book, we present the ideas of vectors and scalars in very fascinating style that will make readers grab core concepts on the topic without the usual boredom associated with scientific literature. Students will have finished reading through the book before realizing they just did, so get reading and enjoy
The way in which science is studied has changed significantly over the years; there is more contemporary emphasis on establishing understanding that c...
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cena:
40,47 |
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Research On Stress State And Strength In Multilayer Bars And Pipes
ISBN: 9783639712254 / Angielski / Miękka / 64 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Most analytical calculation techniques of the stress state in multi-structural elements (MSEs) are based on the assumption that the layers are deformed only in the direction of the load applied. Consequently, deformations in the perpendicular directions do not appear, or in case they do, the deformations are equal, and therefore, have no impact on the stress state. It is well-known that materials do not only exhibit deformations in the direction of the force applied, but in perpendicular directions as well. MSEs are made of materials with different mechanical properties; therefore the...
Most analytical calculation techniques of the stress state in multi-structural elements (MSEs) are based on the assumption that the layers are deforme...
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cena:
205,31 |
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Dynamics of Multibody Systems
ISBN: 9783642864667 / Angielski / Miękka / 460 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Multibody systems are the appropriate models for predicting and evaluating performance of a variety of dynamical systems such as spacecraft, vehicles, mechanisms, robots or biomechanical systems. This book adresses the general problem of analysing the behaviour of such multibody systems by digital simulation. This implies that pre-computer analytical methods for deriving the system equations must be replaced by systematic computer oriented formalisms, which can be translated conveniently into efficient computer codes for - generating the system equations based on simple user data...
Multibody systems are the appropriate models for predicting and evaluating performance of a variety of dynamical systems such as spacecraft, vehicles,...
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cena:
563,56 |
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Moderne Probleme Der Metallphysik: Zweiter Band Chemische Bindung in Kristallen Und Ferromagnetismus
ISBN: 9783642875328 / Niemiecki / Miękka / 489 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Ein starkes Jahr nach dem Erscheinen des ersten Bandes wird nun mehr der zweite Band der "Moderne Probleme der Metallphysik" vorgelegt. Dieser fuhrt zunachst im siebten Kapitel die Behandlung der elektronischen Struktur der Kristalle weiter. Wahrend sich das sechste Kapitel im wesentlichen auf die Ein-Elektronen-Theorie stutzte, befasst sich das siebte Kapitel mit Viel-Elektronen-Problemen. Das fur die Kristallphysik wichtigste dieser Probleme ist zweifellos die Frage nach dem Zustandekommen und der Natur der chemischen Bindung. Die Behandlung dieser Frage in Kapitel sieben leitet uber zum...
Ein starkes Jahr nach dem Erscheinen des ersten Bandes wird nun mehr der zweite Band der "Moderne Probleme der Metallphysik" vorgelegt. Dieser fuhrt z...
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cena:
282,12 |
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Bruchmechanische Bewertung Von Oberflächenrissen: Grundlagen, Experimente, Anwendungen
ISBN: 9783662061763 / Niemiecki / Miękka / 178 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Sicherheit und Verfugbarkeit sind unabdingbare Eigenschaften moderner technischer Anlagen und Konstruktionen. Konzepte fur ihre Bewertung mussen den - aus Grunden des Fortschritts, der Wirtschaftlichkeit und der Umweltpolitik - standig steigenden Anforderungen gewachsen sein. Die vor I iegende Arbeit ver sucht, zur Weiterentwicklung derartiger Bewertungskonzepte beizutragen. Ein Konzept, das die mechanische Sicherheit von Bauteilen gewahr leisten soll, hat ublicherweise den vollstandigen Ausschluss eines Versagens zum Ziel. Die Bewertbarkeit von Versagensvorgangen ist hierfur eine notwendige...
Sicherheit und Verfugbarkeit sind unabdingbare Eigenschaften moderner technischer Anlagen und Konstruktionen. Konzepte fur ihre Bewertung mussen den -...
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cena:
263,32 |
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Finite Elemente in Der Bruchmechanik
ISBN: 9783709122983 / Niemiecki / Miękka / 372 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. |
cena:
300,96 |
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Romansy 14: Theory and Practice of Robots and Manipulators Proceedings of the Fourteenth Cism-Iftomm Symposium
ISBN: 9783709125540 / Angielski / Miękka / 567 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Mechanics, Motion Control, Sensing and Programming, Synthesis and Design, Legged Locomotion and Biomechanical Aspects of Robots and Manipulators - world view of the state of the art. Characterization: This volume presents the latest contribution to the theory and practice of modern robotics given by the world recognized scientists from Australia, Canada, Europe, Japan, Mexico, Singapore and USA.
Mechanics, Motion Control, Sensing and Programming, Synthesis and Design, Legged Locomotion and Biomechanical Aspects of Robots and Manipulators - wor...
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cena:
402,53 |
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