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Artigo Acesso aberto Revisado por pares

Walter Whiteley,

... criterion for stresses on any bar and joint framework with a complete bipartite graph is converted into explicit criteria for infinitesimal motions of the framework.These criteria, based on quadric surfaces through the ... which bars may be added to a bipartite framework without removing a prior infinitesimal motion.These criteria ... of static stresses in any bar and joint framework with an underlying bipartite graph [1].In spite ... title ("When is a bipartite graph a rigid framework?"), the paper gave explicit criteria only for the ...

Tópico(s): Advanced Materials and Mechanics

1984 - Mathematical Sciences Publishers | Pacific Journal of Mathematics

Artigo Acesso aberto Revisado por pares

Walter Whiteley,

... dual (and equivalent) concept of static rigidity for frameworks is used to describe the behavior of bar and joint frameworks built around convex (and other) polyhedra. The static ... essential extension which characterizes the static properties of frameworks built with more general patterns on the faces, including frameworks with vertices interior to the faces. The static ... to the extension of an arbitrary statically rigid framework built around any polyhedron (nonconvex, toroidal, etc.). The ... applied to derive the static rigidity of tensegrity frameworks (with cables and struts in place of bars), ...

Tópico(s): Structural Analysis of Composite Materials

1984 - American Mathematical Society | Transactions of the American Mathematical Society

Primary Document Acesso aberto

Taylor, Benjamin,

"Counsel for the prosecution, Mr. Franklin, attorney, Mr. Payne. Counsel for the defendants, Mr. R.N. Clarke, attorney, Mr. Geo. Hopkinson, jun."--P. ...

0000 - Gale Group | The Making of Modern World

Artigo Acesso aberto Revisado por pares

Walter Whiteley,

... dual (and equivalent) concept of static rigidity for frameworks is used to describe the behavior of bar and joint frameworks built around convex (and other) polyhedra. The static ... essential extension which characterizes the static properties of frameworks built with more general patterns on the faces, including frameworks with vertices interior to the faces. The static ... to the extension of an arbitrary statically rigid framework built around any polyhedron (nonconvex, toroidal, etc.). The ... applied to derive the static rigidity of tensegrity frameworks (with cables and struts in place of bars), ...

Tópico(s): Dielectric materials and actuators

1984 - American Mathematical Society | Transactions of the American Mathematical Society

Primary Document Acesso aberto

Hall, Robert,

Book.

0000 - Gale Group | The Making of Modern World

Artigo Acesso aberto Revisado por pares

Patrick T. Harker, Luís G. Vargas,

... what matters: A sector‐specific corporate social responsibility framework for quality practice8 March 2021 | Thunderbird International Business ... 2017 | Water, Vol. 9, No. 9An AHP-based framework for logistics operations in distribution centresInternational Journal of ... hierarchy processExpert Systems with ApplicationsA group AHP-TOPSIS framework for human spaceflight mission planning at NASAExpert Systems ... group Electre method for electronic supply chain management framework selection16 February 2011 | International Journal of Logistics Research ...

Tópico(s): Urban Transport and Accessibility

1990 - Institute for Operations Research and the Management Sciences | Management Science

Primary Document Acesso aberto

Hall, Robert,

Probably a reply to William Cobbett's To the journeymen and labourers of England, Wales and Scotland, on the cause of their present miseries... Book.

0000 - Gale Group | The Making of Modern World

Artigo

Neil White, Walter Whiteley,

... and extends previous results on bar-and-joint frameworks to bar-and-body frameworks: structures formed by rigid bodies in space linked ... an isostatic (minimal infinitesimally rigid) bar-and-body framework, a single polynomial—the pure condition—is found ... than the previous derivation for bar-and-joint frameworks and the condition is linear in the variables.) ... describe the infinitesimal motions of a 1-underbraced framework in terms of the screw centers of motion ... by the lattice of isostatic blocks in the framework, with at most one irreducible factor for each ...

Tópico(s): Cellular Mechanics and Interactions

1987 - Society for Industrial and Applied Mathematics | SIAM Journal on Algebraic and Discrete Methods

Livro

National Library of Medicine (NCBI)

Book Acesso aberto

Hussein Agha, Ahmad S. Khalidi,

2006 - Gale Group | Chatham House Online Part 2

Artigo Revisado por pares

John B. Parise,

... F(000) = 1112, room temperature, atoms in the framework refined anisotropically to R = 0 . 0 4 7 ... sites within the pores of the structure. The framework is formed by cross linking corrugated sheets composed ... membered rings, converts GaPO4-21 to the open-framework structure of GaPOc25. Introduction. The synthesis of gallium phosphate frameworks, some of which are related to the series ... template, its shape dictating the geometry of the framework. The observation that only dense phases form in ... Institute of Technology, Broadway, Sydney, NSW 2006, Australia. framework structures in the GaPO 4 system, several new ...

Tópico(s): Mesoporous Materials and Catalysis

1986 - Wiley | Acta Crystallographica Section C Crystal Structure Communications

Artigo Acesso aberto

Ivan E. Sutherland,

... imposed on us by the clocked-logic conceptual framework now commonly used in the design of digital systems. I believe that this conceptual framework or mind set masks simple and useful structures ... to design and apply given a different conceptual framework. Because micropipelines are event-driven, their simplicity is not available within the clocked-logic conceptual framework. I offer this description of micropipelines in the ... focusing attention on an alternative transition-signalling conceptual framework. We need a new conceptual framework because the ...

Tópico(s): Parallel Computing and Optimization Techniques

1989 - Association for Computing Machinery | Communications of the ACM

Book Acesso aberto

Daniel Hanna,

2006 - Gale Group | Chatham House Online Part 2

Artigo Acesso aberto

John Qin, Bernard O’Meara, Steven McEachern,

... study. It has been argued that the theoretical frameworks used have contributed to the paradox. Different and ... of group diversity can be predicted using these frameworks. The purpose of this paper is to examine the application of the main theoretical frameworks in the context of researching diversity. Design/methodology/ ... paper is a critical examination of three theoretical frameworks in the field of diversity research – similarity‐attraction ... from a research tradition that views the three frameworks as being best applied separately because each framework ...

Tópico(s): Gender Politics and Representation

2009 - Emerald Publishing Limited | Management Research News

Book Acesso aberto

Alan De Rusett,

1950 - Gale Group | Chatham House

Artigo Revisado por pares

Amanda Jane Commons Treloar,

... failed to find distinctions between the different theoretical frameworks that can be taught in education programs to ... 8 ). The effectiveness of the cognitive-behavioral theoretical framework in facilitating clinician understanding and empathy has yet to be studied. More traditional conceptual frameworks of borderline personality disorder stem from the psychoanalytic ... the literature by examining two types of theoretical frameworks (cognitive-behavioral and psychoanalytic) to see how they ... personality disorder. Education programs using the cognitive-behavioral framework of dialectical behavior therapy or the psychoanalytic framework ...

Tópico(s): Mental Health and Psychiatry

2009 - American Psychiatric Association | Psychiatric Services

Livro

Springer Link

Artigo Revisado por pares

Mohamed Haouas, Christophe Volkringer, Thierry Loiseau, Gérard Férey, Françis Taulelle,

... graphic) of aluminium 1,3,5-benzene tricarboxylate framework solid MIL-110 are a function of the ... a reversible change in the character of the framework from cationic to neutral, depending on the nature of the extra-framework moieties.The aluminium 1,3,5-benzene tricarboxylate framework solid MIL-110, which crystallises either at pH ... and (27)Al NMR spectroscopy prove that the framework is identical in both cases. The nature and ... functions of the pH, leading to an identical framework and a quite different extra-framework. With the ...

Tópico(s): Zeolite Catalysis and Synthesis

2009 - Wiley | Chemistry - A European Journal