Results 331 to 340 of about 2,284,088 (388)
Some of the next articles are maybe not open access.
mmVib: micrometer-level vibration measurement with mmwave radar
ACM/IEEE International Conference on Mobile Computing and Networking, 2020Vibration measurement is a crucial task in industrial systems, where vibration characteristics reflect the health and indicate anomalies of the objects.
Chengkun Jiang +5 more
semanticscholar +1 more source
Negative stiffness devices for vibration isolation applications: A review
, 2020In recent years, negative stiffness vibration isolation device with nonlinear characteristic has become an emerging research area and attracted a significant amount of attentions in the community due to the promising potentials it brought into the field.
Huan Li, Yancheng Li, Jianchun Li
semanticscholar +1 more source
Recent Advances and Tendency in Fiber Bragg Grating-Based Vibration Sensor: A Review
IEEE Sensors Journal, 2020Vibration sensing is critical to monitor and ultimately preserve the health state of engineering systems. These systems with a large structure are typically working in some harsh environments including strong magnetic fields.
Tianliang Li +3 more
semanticscholar +1 more source
Vibrator, vibration unit, and vibrator control method
The Journal of the Acoustical Society of America, 2006A vibrator has massaging balls supported by a treating unit that may be shifted along a subject portion for treatment, guided by guiding members. The treating unit is supported by a supporting structure with respect to the guiding members. A position or orientation altering mechanism is provided for altering the position of the treatment unit in a ...
openaire +1 more source
Modeling and Observer-Based Vibration Control of a Flexible Spacecraft With External Disturbances
IEEE transactions on industrial electronics (1982. Print), 2019This paper outlines the vibration reduction of a spacecraft with flexible appendage subject to external disturbances. The hybrid dynamic model of the spacecraft is described by both partial differential equations and ordinary differential equations.
Y. Liu, Yun Fu, Wei He, Qing Hui
semanticscholar +1 more source
Prediction of building vibration induced by metro trains running in a curved tunnel
Journal of Vibration and Control, 2020Curved metro lines currently account for a significant proportion of total route mileage. However, the existing prediction model of environmental vibration only considered the vibration induced by trains running in a straight tunnel. In the present study,
Meng Ma +4 more
semanticscholar +1 more source
Vibrational anharmonicity and multilevel vibrational dephasing from vibrational echo beats
The Journal of Chemical Physics, 1997Vibrational echo experiments were performed on the IR active CO stretching modes (∼2000 cm−1) of rhodium dicarbonylacetylacetonate [Rh(CO)2acac] and tungsten hexacarbonyl [W(CO)6] in dibutylphthalate and a mutant of myoglobin-CO (H64V-CO) in glycerol–water using ps IR pulses from a free electron laser.
RECTOR K. D. +5 more
openaire +2 more sources
The Journal of Chemical Physics, 1970
The vibrational relaxation of a system of anharmonic oscillators with high initial vibrational energy into a low-temperature heat bath was studied. It was assumed that the vibration–vibration quasisteady population distribution was instantly established, and during the longer time scale the level population distribution was controlled by a continuous ...
C. T. Hsu, F. H. Maillie
openaire +1 more source
The vibrational relaxation of a system of anharmonic oscillators with high initial vibrational energy into a low-temperature heat bath was studied. It was assumed that the vibration–vibration quasisteady population distribution was instantly established, and during the longer time scale the level population distribution was controlled by a continuous ...
C. T. Hsu, F. H. Maillie
openaire +1 more source
Vibration and Vibration Control
1990Vibration in machinery and structures is caused by the disturbing forces from, for example, reciprocating masses, unbalanced rotating masses, variable fluid pressure in hydraulic systems, turbulent wind loadings, wave action on structures, ground effects on vehicles, etc.
openaire +1 more source
The Journal of Hand Surgery: Journal of the British Society for Surgery of the Hand, 1988
Nineteen consecutive patients claiming compensation for vibration white finger were reviewed. The cold provocation test was found to be of no value in confirming a diagnosis of vibration white finger. Small cysts were apparent on the radiographs in 61% of patients’ wrists but none had developed significant degenerative changes of the wrist or digits ...
J C, Boyle, N J, Smith, F D, Burke
openaire +2 more sources
Nineteen consecutive patients claiming compensation for vibration white finger were reviewed. The cold provocation test was found to be of no value in confirming a diagnosis of vibration white finger. Small cysts were apparent on the radiographs in 61% of patients’ wrists but none had developed significant degenerative changes of the wrist or digits ...
J C, Boyle, N J, Smith, F D, Burke
openaire +2 more sources