A new approach is presented for determining the rigid regions in proteins and the flexible joints between them. The short-range forces in proteins are modeled as constraints and we use a recently developed formalism from graph theory to analyze flexibility in the bond network. Forces included in the analysis are the covalent bond-stretching and bond-bending forces, salt bridges, and hydrogen bo...

We propose a position-based approach for largescale simulations of rigid bodies at interactive frame-rates. Our method solves positional constraints between rigid bodies and therefore integrates nicely with other position-based methods. Interaction of particles and rigid bodies through common constraints enables two-way coupling with deformables. The method exhibits exceptional performance and ...

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Flexible queries have aroused an increasing interest for many years in the database literature (Bosc & Pivert, 1992; Christiansen, Larsen, & Andreasen, 1997; Larsen, Kacpryk, Zadrozny, Andreasen, & Christiansen, 2001), and the fuzzy set-based approach to this problem, introduced about 25 years ago, has been developed both at the theoretical and the practical levels through many works (e.g., Bos...

We hypothesise that all electroweak symmetry breaking terms such as fermion masses and the W and Z gauge boson masses arise radiatively from just one explicit symmetry breaking term in the Lagrangian. Our hypothesis is motivated by the lack of experimental support and the lack of predictivity of the standard symmetry breaking scenario. We construct a simple model which illustrates our ideas. We...

Systematic temporally flexible solving has proved useful in scheduling with temporal and resource constraints. However, determining resource flaws in a flexible framework is a complex task even for activities with instantaneous resource impacts, and becomes more daunting for linear or more complex impacts. Plan stability is also important for many applications; as new constraints arise, the cha...

This paper deals with the cyclic scheduling of flexible job-shop with time window constraints and resource capacity constraints. For time window constraints, the duration for processing products on machines and the duration for translating products from one machine to another by transfers are taken into account; for the resource capacity constraints, the confined operation space of machines and...

in present paper, a point to point optimal path is planned for a mobile manipulator with flexible links and joints. for this purpose, a perfect dynamic modeling is performed for mobile manipulators considering large deformation in links, shear effects, elastic joints, effect of gravitation, and non-holonomic constraints. to study large deformation of links, non-linear relation of displacement-s...