This paper describes the coupling of FEFLO, a general purpose compressible and incompressible flow solver based on adaptive unstructured grids, with SIMPACT, a general purpose, large deformation, explicit structural dynamics code developed at the Center for Numerical Methods in Engineering (CIMNE). Details on the codes as well as the coupling strategy employed are given. An example illustrates ...

Recent advances in G-protein-coupled receptor structural biology have provided only limited insight into the active conformations of these key signaling molecules. A paper from Nygaard et al. reveals the dynamic nature of GPCRs along the activation pathway by complementing NMR experiments with ultralong-timescale molecular dynamics simulations.

A framework for understanding and exploiting embodiment is presented which is not dependent on any specific ontological context. This framework is founded on a new definition of embodiment, based on the relational dynamics that exist between biological organisms and their environments, and inspired by the structural dynamics of the bacterium Escherichia coli. Full recognition is given to the ro...

An important frontier in ultrafast science is the application of femtosecond x-ray pulses to the study of structural dynamics in condensed matter. We show that femtosecond laser pulses can be used to generate high-brightness, tunable, femtosecond x-ray pulses from a synchrotron. Performance of existing and proposed femtosecond x-ray beamlines at the Advanced Light Source synchrotron are discussed.

In this paper a brief overview of methods to assess the reliability of mechanical systems and structures is given. A selection of computational procedures, stochastic structural dynamics, stochastic fatigue crack growth, and reliability based optimization are discussed. It is shown that reliability based methods may form the basis for a rational decision making.

The purpose of this paper is to discuss the significance of the theory of complex systems for analyzing economic evolution. We emphasize the necessity of the structural dynamic approach and discuss possible implications of the theory of complex systems for studying economic processes with different speeds of change. We illustrate a way to construct a general economic theory that includes the ma...

We consider the identification of a Markov process {Wt, X ∗ t } for t = 1, 2, ..., T when only {Wt} for t = 1, 2, ..., T is observed. In structural dynamic models, Wt denotes the sequence of choice variables and observed state variables of an optimizing agent, while X∗ t denotes the sequence of serially correlated unobserved state variables. The Markov setting allows the distribution of the uno...

This research proposes a parametric estimation of the structural dynamic efficiency measures proposed by Silva and Oude Lansink (2009). Overall, technical and allocative efficiency measurements are derived based on a directional distance function and the duality between this function and the optimal value function. The applicability of the parametric proposal is illustrated by assessing dynamic...

Damage identification under real operating conditions of the structure during its daily use would be suitable and attractive to civil engineers due to the difficulty and problems of carrying out controlled forced excitation tests on this kind of structures. In this case, output-only response measurements would be available, and an output-only damage identification procedure should be implemente...

In this literature, the symmetric inverse generalized eigenvalue problem with submatrix constraints and its corresponding optimal approximation problem are studied. A necessary and sufficient condition for solvability is derived, and when solvable, the general solutions are presented.