نتایج جستجو برای: kinematics

تعداد نتایج: 24924  

A. Yassaghi

The NNW-trending Dena Fault, with 140 km length, cuts the major structures of Zagros Fold-Thrust Belt in Borujen region. The fault has divided the region in two zones, in which different structural, andmorphological features as well assedimentation and seismtectonic characteristics have developed. This study presents a new interpretation for the kinematics of Dena Fault based on field evidence....

Design, modeling, manufacturing and experimental analysis of a six degree freedom robot, suitable for industrial applications, has been described in this paper. The robot was designed on the assumption that, each joint has an independent DC motor actuator, with gear reduction and measuring sensor for angular joint position. Mechanical design of the robot was done using Mechanical Desktop and ma...

2014
Wael Suleiman

The problem of inverse kinematics is revisited in the present paper. The paper is focusing on the problem of solving the inverse kinematics problem while minimizing the jerk of the joints trajectories. Even-though the conventional inverse kinematics algorithms have been proven to be efficient in many applications, no contraintes on the accelerations or the jerk of the obtained trajectories can ...

Journal: :Journal of sports science & medicine 2006
Rebecca R Steer Alison H McGregor Anthony M J Bull

Rowing injuries have been attributed to poor technique, suggesting a need to understand the mechanics of rowing and the influence on technique of different training regimes and ergometers. The aims of this study were to investigate the repeatability of the kinematics of the lumbopelvic region during rowing and to compare these kinematics between rowing on two different ergometers. An electromag...

ژورنال: کومش 2019
Eslami, Mansour, Hosseinzadeh, Somayeh, Taghipour, Mohammad,

Introduction: Patellofemoral pain syndrome (PFPS) is one of the most common knee injuries that accounted for between 25-40% of all knee problems presenting to sports medicine centers. Two treatment methods of bracing and taping are recommended in these patients that their effectiveness are unclear. The aim of this study was to evaluate the efficacy of the two treatment methods on knee three-dim...

This paper deals with kinematics and dynamics of the human shoulder in order to obtain the workspace related to the reachability of the wrist and applications to determine load for the wheelchair. The model contains six revolute degrees of freedom (D.O.F), two in costoclavicular and three in the shoulder joint and one in the elbow joint, while a six D.O.F model was developed according to given ...

The purpose of this study was to describe biomechanical parameters of head, upper and lower body extremities during a straight right punch throw related to performance and injury mechanism. Subjects were eight elite right-handed male (age 20.4 ± 2.1yrs height 177.4 ± 8.5 cm mass 70.4 ± 16.8 kg) amateur boxers. 3D motion analysis was used to assess the kinematics of the right side extremities ...

Journal: :Journal of the Royal Society, Interface 2010
Silas Alben Kevin Spears Stephen Garth David Murphy Jeannette Yen

Krill are aquatic crustaceans that engage in long distance migrations, either vertically in the water column or horizontally for 10 km (over 200,000 body lengths) per day. Hence efficient locomotory performance is crucial for their survival. We study the swimming kinematics of krill using a combination of experiment and analysis. We quantify the propulsor kinematics for tethered and freely swim...

2001
Eimei Oyama Nak Young Chong Arvin Agah Taro Maeda Susumu Tachi

Inverse kinematics computation using an artificial neural network that learns the inverse kinematics of a robot arm has been employed by many researchers. However, the inverse kinematics system of typical robot arms with joint limits is a multi-valued and discontinuous function. Since it is difficult for a wellknown multi-layer neural network to approximate such a function, a correct inverse ki...

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