Results 291 to 300 of about 799,107 (315)
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Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2019
A human joint impedance estimation method employing a wearable device using the snap-through buckling of closed-elastica has been proposed in our previous study and tested for the ankle joint.
Keisuke Yagi, H. Mochiyama
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A human joint impedance estimation method employing a wearable device using the snap-through buckling of closed-elastica has been proposed in our previous study and tested for the ankle joint.
Keisuke Yagi, H. Mochiyama
semanticscholar +1 more source
Fundamental Considerations and Impluse Impedance of Grounding Grids
IEEE Transactions on Power Apparatus and Systems, 1981The impulse impedance of a grounding grid must be known for determining its performance while discharging impulse currents to ground if problems concerning lightning protection and transients under ground faults are to be accurately analysed. This paper out-lines the basic concepts required for this study, analyses the equivalent circuit ,21]of a ...
R. Verma, D. Mukhedkar
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Research on Field Test of Impulse Grounding Impedance for Small Substation
2018 International Conference on Smart Grid and Electrical Automation (ICSGEA), 2018In this paper, application of a portable instrument to obtain impulse grounding impedance (IGI) characteristics for grounding grid of small substation is introduced. The test currents of 8/20 µs, 10/350 µs and 30/80 µs were chosen as the injection signal sources to the grounding grid respectively with simultaneous measurement of the response ...
Si Wen-Rong +5 more
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FACET: Force-Adaptive Control via Impedance Reference Tracking for Legged Robots
arXiv.orgReinforcement learning (RL) has made significant strides in legged robot control, enabling locomotion across diverse terrains and complex loco-manipulation capabilities.
Botian Xu +4 more
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Calculation of the voltage on earth impedance caused by lightning impulse current
Archiv für Elektrotechnik, 1988In case of lightning stroke into a tower the impulse current behaviour of the ground is of great importance. A simplified model for estimation the lightning performance of grounding electrodes has been evaluated. Based on field theory the inductive character of the earthing impedance is explained.
G. Tevan, K. Petri
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The impulse grounding impedance computation in HVDC transmission line tower
2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2013Electromagnetic field and circuit theory combined is applied to calculate the impulse grounding impedance in HVDC transmission line towers in this paper. The mutual inductance of conductor segments are taken into account. At the same time, the images of the self resistance and mutual inductance are considered for the different medium (soil and air ...
Li Tian-wei, Xiang Yang, Zhao Yu-ming
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A new impulse grounding impedance detection device for transmission tower
2016 International Conference on Condition Monitoring and Diagnosis (CMD), 2016To obtain impulse impedance characteristics for grounding device of transmission tower, a small and portable instrument is developed. It can stable output the 8/20 µs and 10/350 µs standard lightning currents with simultaneous measurement of the response transient voltage waveshapes, which simulates the currents of direct and indirect lightning strikes,
Yue-Qiang Wang +4 more
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Effective impedance spectra for predicting rough sea effects on atmospheric impulsive sounds
The Journal of the Acoustical Society of America, 2005Two methods of calculating the effective impedance spectra of acoustically hard, randomly rough, two-dimensional surfaces valid for acoustic wavelengths large compared with the roughness scales have been explored. The first method uses the complex excess attenuation spectrum due to a point source above a rough boundary predicted by a boundary element ...
Patrice, Boulanger, Keith, Attenborough
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[Diurnal profile of impulse oscillometric impedance in healthy subjects].
Pneumologie (Stuttgart, Germany), 1997Diurnal profiles of impulse oscillometry during 24 hours in 3 hour intervals in sitting and lateral lying position have been studied in 20 healthy female and male probands 10-67 years of age. Approximating the profiles by a sine-cosine-function the amplitude of resistance was found up to 3, that of reactance up to 1 hPa/l/s in single cases, preferably ...
J, Vogel +4 more
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2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI), 2023
Fernando Albarracin +3 more
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Fernando Albarracin +3 more
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