In this paper, we propose a 2-DOF parallel mechanism with flexure hinges. The kinematics and static analyses of this mechanism are studied in order to determine the kinematics properties, workspace, holding forces of the actuators and the reaction forces at the flexure hinges. These factors are useful for design process of this mechanism. The pseudo-rigid-body model (PRB model) of this mechanis...

Fundamental problems of quantum field theory related to the representation problem of canonical commutation relations are discussed within a gauge field version of a van Hove-type model. The Coulomb field generated by a static charge distribution is described as a formal superposition of time-like pseudo-photons in Fock space with a Krein structure. In this context, a generalization of operator...

Introduction: The motion and the anatomy of the temporomandibular joint (TMJ) is very complex. Static or pseudo-dynamic MRI of the TMJ does not allow for full analysis of the disc deformation and displacement during the mandibular motion. The purpose of this study was to develop and evaluate a fast dynamic MRI technique for measurement of the TMJ with an arbitrary reconstruction window time poi...

The static three-quark potential and pseudo-potential of a pure SU(3) gauge theory are studied in a five-dimensional framework known as AdS/QCD. The results support the Yansatz for the baryonic area law. A comparison with the quark-antiquark calculations shows the universality of the string tension as well as the spatial string tension. We also discuss extensions to SU(N) gauge theories. PACS: ...

ALBR1GHT, F., FORBES, A.P. & HENNEMAN, P.H. (1952) Pseudo-pseudo hypoparathyroidism. Transactions of the Association of American Physicians, 65, 337. DUDLEY, A.W. & HAWKINS, H. (1970) Mineralisation of the central nervous system in pseudo-pseudo hypoparathyroidism. Journal of Neurology, Neurosurgery and Psychiatry, 33, 147. MATHEWS, W.B. (1957) Familial calcification of the basal ganglia with r...

In recent years some multi-mode pushover procedures taking into account higher mode effects, have been proposed. The responses of considered modes are combined by the quadratic combination rules, while using the elastic modal combination rules in the inelastic phases is not valid. Here, an optimum weighted mode combination method for nonlinear static analysis is presented. Genetic algorithm is ...

Steel frames equipped with chevron bracing (?-CBF) are usually less ductile than other steel systems. Therefore, in many cases, it can be convenient to design ?-CBF exploit their stiffness and resistance enforce a pseudo-elastic seismic response of the building low moderate zones. In current EC8, rules for same as those high frames, thus potentially leading massive, over-resistant uneconomic ne...

near-surface variations can be very complex and may distort amplitudes and arrival times of the reflections events from target reflectors. near-surface complexities include topographic variations, near-surface irregularities, variations in soil conditions and the weathered layer. these perturbations generally have a significant impact on seismic recordings. although there is a general agreement...

In current design practice, the dynamic wind loads are described in terms of the equivalent static wind loads based on the gust response factor. This approach results in a distribution of the equivalent static loading similar to the mean static wind load distribution, which may not always be a physically meaningful and realistic load description. In this paper, the equivalent static load repres...

Static properties, relatively intensity noise and intensity modulation response in quantum cascade lasers (QCLs) studied theoretically in this paper. The present rate equations model consists of three equations for the electrons density in the conduction band and one equation for photons density in cavity length. Two equations were derived to calculate the noise and modulation response. Calcula...