This paper introduces a new metamorphic parallel mechanism consisting of four reconfigurable rTPS limbs. Based on the reconfigurability of the reconfigurable Hooke (rT) joint, the rTPS limb has two phases while in one phase the limb has no constraint to the platform, in the other it constrains the spherical joint center to lie on a plane. This results in the mechanism to have ability of reconfi...

Many of today’s embedded systems – such as automobiles, automated factories or chemical plants – are an increasingly complex mixture of hardware components and embedded control software, showing both continuous (vehicle dynamics, silo fill levels) and discrete (software) behavior. As complexity grows, handling such systems, e.g. diagnosing and repairing faults, becomes harder. This problem is a...

The aim of this study was to test the target impact constraint hypothesis of the one-target advantage. The one-target advantage phenomenon reflects the finding that movements to a single target show shorter movement times than similar movements followed by a second movement toward a second target. The target impact constraint hypothesis attributes this phenomenon to differences in passive decel...

We develop a module-based framework for constraint modeling where it is possible to combine different constraint modeling languages and exploit their strengths in a flexible way. In the framework a constraint model consists of modules with clear input/output interfaces. When combining modules, apart from the interface, a module is a black box whose internals are invisible to the outside world. ...

Geometric constraints are imperative components of many dynamic simulation systems to effectively control the behavior of simulated objects. In this paper we present an improved first-order implicit constraint enforcement scheme to achieve improved accuracy without significant computational burden. Our improved implicit constraint enforcement technique is seamlessly integrated into a dynamic si...

The aims of the study were to determine the impact of temporomandibular disorders (TMD) on self-percieved oral health related quality of life (OHRQoL) and to compare OHRQoL of patients with TMD with a control group. A total of 81 TMD patients participated in a study group and 400 adults served as the control group. The mean OHIP summary scores were computed for all patients with the same diagno...

BACKGROUND The Pain, Functional Impairment, and Quality of Life (P-FiQ) study was an observational, cross-sectional assessment of the impact of pain on functional impairment and quality of life in adults with hemophilia in the United States who experience joint pain or bleeding. OBJECTIVE To describe known-groups validity of assessment tools used in the P-FiQ study. PATIENTS AND METHODS Par...

This paper presents an efficient algorithm for the parallel implementation of dynamics simulation and analysis of multi-flexible-body systems. This algorithm formulates and solves the nonlinear equations of motion for mechanical systems with interconnected flexible bodies subject to the limitations of modal superposition, and body substructuring, with arbitrarily large rotations and translation...

A bstract We discuss cosmological constraints on a dark scalar particle mixing with the Standard Model Higgs boson. pay particular attention to production process when reheating temperature of Universe is very low, which allows us give conservative limit low-mass particle. also study effect self-interaction scalars and find this has significant impact constraints. obtain most constraint scalar,...