objectives: the aim of this study was to extract suitable spatiotemporal and kinematic parameters to determine how total knee replacement (tkr) alters patients’ knee kinematics during gait, using a rapid and simplified quantitative two-dimensional gait analysis procedure. methods: two-dimensional kinematic gait pattern of 10 participants were collected before and after the tkr surgery, using a ...

this paper presents the kinematic analysis and the development of a 4-degree-of-freedom serial-parallel mechanism for large commercial vehicle driving simulators. the degrees of freedom are selected according to the target maneuvers and the structure of human motion perception organs. several kinematic properties of parallel part of the mechanism under study are investigated, including the inve...

this article addresses an efficient and novel method for singularity-free path planning and obstacle avoidance of parallel manipulator based on neural networks. a modified 4-5-6-7 interpolating polynomial is used to plan a trajectory for a spherical parallel manipulator. the polynomial function which is smooth and continuous in displacement, velocity, acceleration and jerk is used to find a pat...

aim and background:   hypothermia is a common complication in surgeries patients and may have serious consequences in both mother and fetal in cesarean surgery. this study was implemented to assess the effect of intravenous (iv) infusion of warm fluids on decreasing hypothermia in mothers and its consequences on newborns. methods and materials:   this randomized controlled clinical trial was do...

We present a general simulation approach for incompressible fluid–structure interactions in fully Eulerian framework using the reference map technique. The is suitable modeling one or more rigid finitely deformable objects soft with components interacting fluid and each other. It also extended to control kinematics of structures fluids. model based on our previous fluid–soft solver [Rycroft et ...

In this study we have used a convergent and highly accurate mixed finite element technique to model the effect of fluid elasticity on the flow kinematics and the stress distribution in lid driven cavity flow. Our work is motivated by the desire to capture the important physical aspects of the basic flow and thus to better understand the purely elastic instability in recirculating flows which ha...

the borujerd complex of western iran is composed of intrusions and their surrounding contact aureole, with, pegmatites and quartz veins. pegmatites differ in mineralogy, origin and age, and two groups can be distinguished. the older pegmatites (about 120 ma age) intruded contact metamorphic rocks from the early magmatic stage, while the younger pegmatites (52-70 ma age) formed during the late m...

iv therapy is an important option in incapable patients’ treatment. in this paper, we discuss about: a) for best control of them, we must know about what materials are in these drugs? b) for what reason they are use? c) what errors may be happen in use of them? amount of iv fluids must be accommodating with loss of fluids. firstly, we review amount of main body fluids. main part of our body wei...