The purpose of this article is to inform clinicians of the relevant knowledge gained from research in the field of prosthetics. From a biomechanical point of view, clinicians need relevant knowledge in order to properly prescribe a lower limb prosthesis, including prosthetic components. In this context, and due to the lack of data regarding their utility, a strength-weakness analysis of 8 types...

Under the stress of environmental pollutions and fossil fuel consumption caused by on-road transport, hybrid vehicles are attracting much attention. Opposed rotary piston (ORP) engines a promising power source for vehicles, due to their compact designs high density. In this paper, combustion emission characteristics turbocharged ORP engine fuelled with hydrogen were investigated evaluate overal...

The crank of an integer partition is an integer statistic which yields a combinatorial explanation of Ramanujan’s three famous congruences for the partition function. The existence of such a statistic was conjectured by Freeman Dyson in 1944 and realized 44 years later by George Andrews and Frank Gravan. Since then, groundbreaking work by Ken Ono, Karl Mahlburg, and others tells us that not onl...

Let spt(n) denote the total number of appearances of the smallest parts in all the partitions of n. In 1988, the second author gave new combinatorial interpretations of Ramanujan’s partition congruences mod 5, 7 and 11 in terms of a crank for weighted vector partitions. In 2008, the first author found Ramanujantype congruences for the spt-function mod 5, 7 and 13. We give new combinatorial inte...

Currently, rehabilitation systems with closed kinematic chain mechanisms are low-cost alternatives for treatment and health care. In designing these systems, the dimensional synthesis is commonly stated as a constrained optimization problem to achieve repetitive movements, metaheuristic algorithms problems promising methods searching solutions in complex search space. The Constraint Handling Te...

A new single-degree-of-freedom quadruped robot leg walking mechanism is proposed to solve the problems of more drive elements, complex structure and control system in existing single-leg mechanism. The principle scheme design are completed according requirements foot end trajectory curve actual motion characteristics. dimensions each rod crank rocker meet “inverted D-type” law at E point on lin...

Planar kinematic mapping is applied to the five-position Burmester problem for planar four-bar mechanism synthesis. The problem formulation takes the five distinct rigid body poses directly as inputs to generate five quadratic constraint equations. The five poses are on the fourth order curve of intersection of two hyperboloids of one sheet in the image space. Moreover, the five poses uniquely ...