Results 261 to 270 of about 37,928 (312)
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Analysis on the features and potential causes of wheel surface damage for heavy-haul locomotives
, 2020With an aim of identifying the main causes of wheel surface damage occurred in heavy-haul locomotives, this paper presents the investigation on this intractable problem including field observed, site survey, and numerical simulation.
Lyu Kaikai +6 more
semanticscholar +1 more source
Vehicle System Dynamics, 2020
This paper develops a dynamic model of heavy-haul train to investigate the dynamic behaviour of heavy-haul locomotives passing through turnout branch lines with electric brakes.
Zhichao Zhang +3 more
semanticscholar +1 more source
This paper develops a dynamic model of heavy-haul train to investigate the dynamic behaviour of heavy-haul locomotives passing through turnout branch lines with electric brakes.
Zhichao Zhang +3 more
semanticscholar +1 more source
Angewandte Chemie International Edition, 2006
AbstractResearch into the autonomous motion of artificial nano‐ and microscale objects provides basic principles to explore possible applications, such as self‐assembly of superstructures, roving sensors, and drug delivery. Although the systems described have unique propulsion mechanisms, motility in each case is made possible by the conversion of ...
Walter F, Paxton +3 more
openaire +2 more sources
AbstractResearch into the autonomous motion of artificial nano‐ and microscale objects provides basic principles to explore possible applications, such as self‐assembly of superstructures, roving sensors, and drug delivery. Although the systems described have unique propulsion mechanisms, motility in each case is made possible by the conversion of ...
Walter F, Paxton +3 more
openaire +2 more sources
European Journal of Applied Physiology and Occupational Physiology, 1994
The hypothesis that Pygmies may differ from Caucasians in some aspects of the mechanics of locomotion was tested. A total of 13 Pygmies and 7 Caucasians were asked to walk and run on a treadmill at 4-12 km.h-1. Simultaneous metabolic measurements and three-dimensional motion analysis were performed allowing the energy expenditure and the mechanical ...
MINETTI A. E. +5 more
openaire +4 more sources
The hypothesis that Pygmies may differ from Caucasians in some aspects of the mechanics of locomotion was tested. A total of 13 Pygmies and 7 Caucasians were asked to walk and run on a treadmill at 4-12 km.h-1. Simultaneous metabolic measurements and three-dimensional motion analysis were performed allowing the energy expenditure and the mechanical ...
MINETTI A. E. +5 more
openaire +4 more sources
Journal of Experimental Biology, 1964
ABSTRACT The form and frequency of the waves passing down the bodies of small free-living nematodes (Panagrellus, Rhabditis and Turbatrix) depend on the nature of the external medium. Observations of animals moving in such media as syrup, agar gels, and dense suspensions of particles suggest that the relationship between the speed of ...
J, GRAY, H W, LISSMANN
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ABSTRACT The form and frequency of the waves passing down the bodies of small free-living nematodes (Panagrellus, Rhabditis and Turbatrix) depend on the nature of the external medium. Observations of animals moving in such media as syrup, agar gels, and dense suspensions of particles suggest that the relationship between the speed of ...
J, GRAY, H W, LISSMANN
openaire +2 more sources
The Psychoanalytic Quarterly, 1994
This communication presents clinical material confirming the significance of the power of locomotion (including its associated symbols) and its link to psychic development (preoedipal and oedipal), the myth of Oedipus, and Sophocles' Oedipus plays.
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This communication presents clinical material confirming the significance of the power of locomotion (including its associated symbols) and its link to psychic development (preoedipal and oedipal), the myth of Oedipus, and Sophocles' Oedipus plays.
openaire +2 more sources
2001
Fish locomotion shows the key features related to swimming. The functional anatomy of relevant parts is described. Species with special swimming skills are discussed. Kinematics of undulations of body and tail and swimming styles using paired and unpaired appendages are described.
openaire +4 more sources
Fish locomotion shows the key features related to swimming. The functional anatomy of relevant parts is described. Species with special swimming skills are discussed. Kinematics of undulations of body and tail and swimming styles using paired and unpaired appendages are described.
openaire +4 more sources
The Bulletin of Mathematical Biophysics, 1948
By considering the general energy balance between the energy of muscular contraction in the extremities, kinetic energy imparted to the animal and the energy lost in the lifting of the center of gravity and in the possible muscular viscosity, an expression is derived for the speed of an animal in terms of the constant which determine its shape and ...
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By considering the general energy balance between the energy of muscular contraction in the extremities, kinetic energy imparted to the animal and the energy lost in the lifting of the center of gravity and in the possible muscular viscosity, an expression is derived for the speed of an animal in terms of the constant which determine its shape and ...
openaire +2 more sources
Atmospheric Environment, 2018
In this study, we evaluated the emission rates of ambient fine particulate matter (PM2.5) mass, particle number (PN), and black carbon (BC) from sources at the Ports of Los Angeles (POLA) and Long Beach (POLB), including ships, cargo-handling equipment ...
Amirhosein Mousavi +6 more
semanticscholar +1 more source
In this study, we evaluated the emission rates of ambient fine particulate matter (PM2.5) mass, particle number (PN), and black carbon (BC) from sources at the Ports of Los Angeles (POLA) and Long Beach (POLB), including ships, cargo-handling equipment ...
Amirhosein Mousavi +6 more
semanticscholar +1 more source
Wear, 2019
Severe rolling contact fatigue (RCF), occurring continuously around the nominal rolling circle of a wheel as lateral cracks up to 14.5 mm deep, has been observed on some high-power (≥7200 kW) AC locomotives in China.
Yongfeng Liu +4 more
semanticscholar +1 more source
Severe rolling contact fatigue (RCF), occurring continuously around the nominal rolling circle of a wheel as lateral cracks up to 14.5 mm deep, has been observed on some high-power (≥7200 kW) AC locomotives in China.
Yongfeng Liu +4 more
semanticscholar +1 more source