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Author: ASM International
Publisher: ASM International
ISBN: 1615030859
Category : Technology & Engineering
Languages : en
Pages : 456
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Book Description
Author: ASM International
Publisher: ASM International
ISBN: 1615030859
Category : Technology & Engineering
Languages : en
Pages : 456
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Book Description
Author: Sabu Thomas
Publisher: William Andrew
ISBN: 0323511341
Category : Technology & Engineering
Languages : en
Pages : 147
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Book Description
Recycling of Polyurethane Foams introduces the main degradation/depolymerization processes and pathways of polyurethane foam materials, focusing on industrial case studies and academic reviews from recent research and development projects. The book can aid practitioners in understanding the basis of polymer degradation and its relationship with industrial processes, which can be of substantial value to industrial complexes the world over. The main pathways of polymer recycling via different routes and industrial schemes are detailed, covering all current techniques, including regrinding, rebinding, adhesive pressing and compression moulding of recovered PU materials that are then compared with depolymerization approaches. The book examines life cycle assessment and cost analysis associated with polyurethane foams waste management, showing the potential of various techniques. This book will help academics and researchers identify and improve on current depolymerization processes, and it will help industry sustainability professionals choose the appropriate approach for their own waste management systems, thus minimizing the costs and environmental impact of their PU-based end products. Offers a comprehensive review of all polyurethane foam recycling processes, including both chemical and mechanical approaches Assesses the potential of each recycling process Helps industry-based practitioners decide which approach to take to minimize the cost and environmental impact of their end product Enables academics and researchers to identify and improve upon current processes of degradation and depolymerization
Author: William L. Wright
Publisher:
ISBN:
Category : Adhesives
Languages : en
Pages : 122
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Book Description
Author: United States. Department of the Treasury
Publisher:
ISBN:
Category : Customs administration
Languages : en
Pages : 1366
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Book Description
Vols. for 1891-1897 include decisions of the United States Board of General Appraisers.
Author: United States. Department of the Treasury
Publisher:
ISBN:
Category :
Languages : en
Pages : 1154
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Book Description
Beginning with 1915 the Abstracts of decisions of the United States Customs court are included
Author: N. D. Epiotis
Publisher: Springer Science & Business Media
ISBN: 3642932398
Category : Science
Languages : en
Pages : 598
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Book Description
The bond diagrammatic representation of molecules is the foundation of MOVB theory. To a certain extent, this kind of representation is analogous to the one on which "resonance theory" is based and this fact can be projected by a comparison of the various ways in which MOVB theory depicts a species made up of three core and two ligand MO's which define two subsystems containing a total of six electrons and the ways in which "resonance theory" (i. e. , qualitative VB theory) depicts a six-electron-six-AO species such as the pi system of CH =CH-CH=CH-CH=O. The 2 different pictorial representations are shown in Scheme 1 so that the analogies are made evident. First of all, the total MOVB diagrammatic representation of the 6/5 species is obtained by a linear combination of three complete bond diagrams, as in Al, which describe the optimal linear combination of!l! MOVB Configuration Wavefunctions (CW's). By the same token, a total VB diagrammatic representation of the 6/6 species can be obtained by writing a "dot structure", as in Bl, and taking this to mean the optimal linear combination of all VB CW's. Next, we can approxi mate the MOVB wavefunction of the 6/5 species by one complete (or detailed) bond dia gram" (A2). No simple VB representation analogy can be given in this case. Alterna tively, we can approximate the MOVB wavefunction by a linear combination of compact bond diagrams, as in A3, in the way described before.
Author: Meir Shillor
Publisher: Springer Science & Business Media
ISBN: 9783540229155
Category : Science
Languages : en
Pages : 288
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Book Description
The mathematical theory of contact mechanics is a growing field in engineering and scientific computing. This book is intended as a unified and readily accessible source for mathematicians, applied mathematicians, mechanicians, engineers and scientists, as well as advanced students. The first part describes models of the processes involved like friction, heat generation and thermal effects, wear, adhesion and damage. The second part presents many mathematical models of practical interest and demonstrates the close interaction and cross-fertilization between contact mechanics and the theory of variational inequalities. The last part reviews further results, gives many references to current research and discusses open problems and future developments. The book can be read by mechanical engineers interested in applications. In addition, some theorems and their proofs are given as examples for the mathematical tools used in the models.
Author: American Foundrymen's Society
Publisher:
ISBN:
Category : Founding
Languages : en
Pages : 1028
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Book Description
Author: United States. Department of the Treasury
Publisher:
ISBN:
Category : Customs administration
Languages : en
Pages : 960
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Book Description
Vols. for 1904-1926 include also decisions of the United States Board of General Appraisers.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 388
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Book Description
