نتایج جستجو برای: raotor speed

تعداد نتایج: 206068  

2015
Clinton L. Johns Kazunaga Matsuki Julie A. Van Dyke

A substantial body of evidence points to a cue-based direct-access retrieval mechanism as a crucial component of skilled adult reading. We report two experiments aimed at examining whether poor readers are able to make use of the same retrieval mechanism. This is significant in light of findings that poor readers have difficulty retrieving linguistic information (e.g., Perfetti, 1985). Our expe...

Journal: :Gait & posture 2011
Noel Lythgo Cameron Wilson Mary Galea

This study recorded basic gait data from 656 healthy primary school-aged children (5-13 years) and 81 young adults (18-27 years) whilst walking over-ground across a level walkway at varying speed. It investigated the effect of gait speed and re-examined the issue of gait maturation. Participants completed 6-8 walks at self-selected slow, free and fast speed along a GAITRite walkway whilst weari...

Journal: :iranian journal of mechanical engineering transactions of the isme 2013
y. yassi

waterwheels are the oldest types of hydraulic machines. these turbines are of relatively simple design, large diameter, low rotational speed and high torques. but applying them as micro hydros of high speed and small diameter is yet to be explored. a micro hydro waterwheel of one meter diameter was designed and manufactured at the iranian  esearc†h organization for science and technology (irost...

Journal: :Behavior Research Methods & Instrumentation 1981

Journal: :Gait & posture 2011
Kimberley S van Schooten Lizeth H Sloot Sjoerd M Bruijn Herman Kingma Onno G Meijer Mirjam Pijnappels Jaap H van Dieën

For targeted prevention of falls, it is necessary to identify individuals with balance impairments. To test the sensitivity of measures of variability, local stability and orbital stability of trunk kinematics to balance impairments during gait, we used galvanic vestibular stimulation (GVS) to impair balance in 12 young adults while walking on a treadmill at different speeds. Inertial sensors w...

2015

It has recently been shown that gait speed has an effect on multi-segment foot kinematics. To increase our understanding of these effects, it is critical to compare and develop a database of walking speed ranges. Therefore, the purpose of this study was to determine the effects of walking speed on multi-segment foot kinematics. A 12-camera Vicon motion capture system was used to collect kinemat...

Journal: :international journal of advanced biological and biomedical research 2014
afshin azmoodeh-mishamandani shamsollah abdollahpoor hossein navid mohammad moghaddam vahed

the object of this study was evaluation of a walking tractor drawn peanut harvester at different conditions of soil moisture content and forward speed and comparing it with manual harvesting. the evaluation factors for peanut harvester were two levels of soil moisture content and three levels of forward speed. the results revealed that the effect of soil moisture content was only significant on...

Journal: :international journal of advanced design and manufacturing technology 0
mehdi jafarian gholamhosein dehghan abbas vafaeisefat

surface roughness is one of the most important parameters that plays very critical role in determining the quality of engineering components. a good surface quality resulting in improve of fatigue strength, corrosion and wear resistance of the workpiece. on the other hand, increasing cutting speed and decreasing time of machining are desirable for manufacturers in order to reduce costs and incr...

Journal: :سالمند 0
زهرا فتحی رضایی zahra fathi rezaie shahid beheshti university,tehran.iranدانشگاه شهید بهشتی محمد علی اصلانخانی mohammad ali aslankhani shahid beheshti university,tehran.iranدانشکده تربیت بدنی و علوم ورزشی دانشگاه شهید بهشتی بهروز عبدلی behroz abdoli shahid beheshti university,tehran.iranدانشکده تربیت بدنی و علوم ورزشی دانشگاه شهید بهشتی علیرضا فارسی alireza farsi shahid beheshti university,tehran.iranدانشکده تربیت بدنی و علوم ورزشی دانشگاه شهید بهشتی محمد تقی اقدسی mohammad taghi aghdasi shahid beheshti university,tehran.iranدانشکده تربیت بدنی و علوم ورزشی دانشگاه شهید بهشتی سید حجت زمانی ثانی hojjat zamani sani shahid beheshti university,tehran.iranدانشگاه شهید بهشتی

objectives: this study aimed to compare elderly fallers and non fallers by balance test under dual tasks conditions. methods & materials: this study was a analyse-comparative study. subjects were chosen from three parks of tehran. subjects were 20 older adults with no history of falls (aged 72.60±5years) and 21 older adults with a history of 2 or more falls in the last one year (aged 74.50±6 ye...

2012
Noël LW Keijsers Niki M Stolwijk Jan-Willem K Louwerens Jaak Duysens

Background Walking speed is one of the best measures of overall walking ability. In plantar pressure measurements, walking speed is usually assessed using a stopwatch, photocells, or camera systems. As a simple alternative, contact time can be used but contact time and walking speed are only moderately correlated. Because walking speeds alters foot loading, the centre of pressure might be of mo...

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