Автор: Keshavarz, Mohammad Hossein Название: The Properties of Energetic Materials Sensitivity, Physical and Thermodynamic Properties ISBN: 3110521873 ISBN-13(EAN): 9783110521870 Издательство: Walter de Gruyter Рейтинг: Цена: 74330.00 T Наличие на складе: Нет в наличии. Описание: For a chemist who is concerned with the synthesis of new energetic compounds, it is essential to be able to assess physical and thermodynamic properties, as well as the sensitivity, of possible new energetic compounds before synthesis is attempted. Various approaches have been developed to predict important aspects of the physical and thermodynamic properties of energetic materials including (but not limited to): crystal density, heat of formation, melting point, enthalpy of fusion and enthalpy of sublimation of an organic energetic compound. Since an organic energetic material consists of metastable molecules capable of undergoing very rapid and highly exothermic reactions, many methods have been developed to estimate the sensitivity of an energetic compound with respect to detonationcausing external stimuli such as heat, friction, impact, shock and electrostatic discharge. This book introduces these methods and demonstrates those methods which can be easily applied.
Автор: Mohammad Hossein Keshavarz, Thomas M. Klapotke Название: Energetic Compounds: Methods for Prediction of their Performance ISBN: 3110521849 ISBN-13(EAN): 9783110521849 Издательство: Walter de Gruyter Цена: 61920.00 T Наличие на складе: Невозможна поставка. Описание: Since the synthesis and development of new energetic materials require identification of promising candidates for additional study and elimination of poor candidates from further consideration, it is important for engineers, scientists and industries to assess the performance of the new compounds for reducing costs associated with synthesis, testing and evaluation of these materials. Nowadays different approaches have been used to predict the performance of energetic compounds, which can be recognized to be cost-effective, environmentally-desirable and time-saving capabilities. This book reviews different methods for the assessment of the performance of an energetic compound through its heat of detonation, detonation pressure, detonation velocity, detonation temperature, Gurney energy and power (strength). The book also focuses on the detonation pressure and detonation velocity of non-ideal aluminized energetic compounds. Simple and reliable methods are demonstrated in detail where they can be easily used for the design, synthesis and development of novel energetic compounds.
Автор: Keshavarz, Mahmoud (researcher In Cultural Anthropology, Uppsala University, Sweden) Название: Design politics of the passport ISBN: 1474289398 ISBN-13(EAN): 9781474289399 Издательство: Bloomsbury Academic Рейтинг: Цена: 116160.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание:
The Design Politics of the Passport presents an innovative study of the passport and its associated social, political and material practices as a means of uncovering the workings of 'design politics'. It traces the histories, technologies, power relations and contestations around this small but powerful artefact to establish a framework for understanding how design is always enmeshed in the political, and how politics can be understood in terms of material objects.
Combining design studies with critical border studies, alongside ethnographic work among undocumented migrants, border transgressors and passport forgers, this book shows how a world made and designed as open and hospitable to some is strictly enclosed, confined and demarcated for many others - and how those affected by such injustices dissent from the immobilities imposed on them through the same capacity of design and artifice.
The Design Politics of the Passport presents an innovative study of the passport and its associated social, political and material practices as a means of uncovering the workings of 'design politics'. It traces the histories, technologies, power relations and contestations around this small but powerful artefact to establish a framework for understanding how design is always enmeshed in the political, and how politics can be understood in terms of material objects.
Combining design studies with critical border studies, alongside ethnographic work among undocumented migrants, border transgressors and passport forgers, this book shows how a world made and designed as open and hospitable to some is strictly enclosed, confined and demarcated for many others - and how those affected by such injustices dissent from the immobilities imposed on them through the same capacity of design and artifice.
Автор: Meysam Keshavarz Название: Thermal Barrier Coating on Gamma Titanium Aluminide by EB-PVD ISBN: 365941218X ISBN-13(EAN): 9783659412189 Издательство: LAP LAMBERT Academic Publishing Рейтинг: Цена: 69250.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Thermal barrier coating (TBC) systems are indispensable for utilization in gas turbine engines to decrease the thermal effect and enhance turbine efficiency by considerably raising applied gas temperatures. TBCs are typically composed of an underlying metallic bond coat known as MCrAlY (M=Ni,Co) acting as an oxidation resistant layer, and yttria-stabilized zirconia (YSZ) as a ceramic top coat that provides thermal insulation toward the metallic substrate. In this study Inter-metallic alloy based on Gamma Titanium Aluminide was chosen as a substrate due to its low density as compared to the conventional Nickel-based super alloy which made it competent to be an important structural material in high-temperature aerospace and automotive applications. TBC's bond coat and ceramic top coat were performed by EB-PVD at different partial pressures of Oxygen during deposition of the top layer in order to get deeper insight into the correlation between adhesion and deposition process parameters.
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