Results 251 to 260 of about 2,946,957 (300)
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Speed and power factor controller for AC adjustable speed drives
IEEE Transactions on Energy Conversion, 1991The speed and power factor of an adjustable speed slip power recovery drive are controlled in order to optimize the operation. This is accomplished by means of a variable-voltage-variable-frequencies power converter. The function of the digital controller of the power converter is to provide the online speed and power factor regulation.
M.G. Ioannides, P.J. Papadopoulos
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Speed control for quadruped using duty factor
Proceedings. 2000 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2000) (Cat. No.00CH37113), 2002This work deals with the design of a locomotion algorithm that changes the speed of a crawling quadruped by varying the duty factor /spl beta/. The walking pattern used is the well-known wave gait. This kind of gait should be maintained as much as possible since it is the most efficient locomotion pattern on flat ground. However, the transition between
Vincent Hugel +2 more
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The Speed Factor in Mental Measurements
The Journal of Educational Research, 1924The attacks on the validity of modern tests of general intel ligence by William C. Bagley, Walter M. Lippmann, and others, have raised a number of important issues. One of these is the question of the effect of time limits on the scores of subjects taking such tests. Mr.
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Speeding up wheel factoring method
The Journal of Supercomputing, 2022Hazem M. Bahig +5 more
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Factors Affecting Walking Speed of Elderly People
Age and Ageing, 1989Associations between walking speed and other variables have been investigated in a group of 67 women and 58 men aged between 65 and 90 years and living independently. In men, walking speed was related positively to calf strength, step-score (a measure of customary physical activity), hours spent in active leisure, height and weight, and negatively to ...
M J, Bendall, E J, Bassey, M B, Pearson
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Environmental Factors Influencing Pedestrian Walking Speed
Perceptual and Motor Skills, 2013The present study investigated various factors influencing pedestrian speed. Undergraduate students who were registered in psychology courses participated in three studies (Study 1: N = 71, M age = 20.3 yr., 37 women; Study 2: N = 92, M age = 19.6 yr., 48 women; Study 3: N =108, M age = 20.4 yr., 56 women).
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Factors Related to Top Running Speed and Economy
International Journal of Sports Medicine, 2007The main purpose of the present study was to investigate the relationships between running mechanics, top running speed and economy in young endurance athletes. Twenty five endurance athletes (age 19.8 +/- 1.1 years, stature 1.82 +/- 0.07 m and body mass 69.4 +/- 7.5 kg) performed two separate tests on an indoor track.
A, Nummela, T, Keränen, L O, Mikkelsson
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LSTM with Matrix Factorization for Road Speed Prediction
2017Road speed prediction is a key point of Intelligent Transport System. Plenty of work have proved the effectiveness and efficiency of neural network in forecasting freeway velocity. However, the missing values are obstacles when applying the widely used trajectory data to neural network.
Jian Hu, Xin Xin 0001, Ping Guo 0002
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Factors That Restrict Speed in Streamline
2010The fast moving area of mobile telecommunication forces companies to deliver functionality with increasing speed to customers. To deal with these challenges, Ericsson AB cre- ated a software process called Streamline Development(SD); which bridges the gap between long term thinking and agile development.
Leric, Zana, Södergren, Magnus
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Postural factors contributing to reaching speed and accuracy
International Journal of Occupational Safety and ErgonomicsObjectives. Occupational reaching tasks performed with faulty postures may contribute to inefficient movement patterns that could lead to injury. Understanding relationships between posture and muscle activation during reaching tasks may elucidate movement patterns that increase occupational injury risk in workers.
Nicole J, Chimera +3 more
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