Results 21 to 30 of about 421,331 (286)

Comprehensive evaluation of corroded grounding electrodes considering the impulse characteristics

Frontiers in Materials, 2023
The grounding electrodes are buried in a harsh soil environment, which will cause corrosion. Corroded grounding electrodes directly affect the safe and stable operation of the power system.
Xuemeng Wang, Lan Xiong, Zhanlong Zhang, Yihua Dan, Jun Deng   +4 more
doaj   +1 more source

Effect of Enhancement Material on the Performance of Ground Electrodes Under Impulse Conditions

IEEE Access
Among the factors that affect the soil resistivity is the chemical content in soil, where the ionic conduction is expectedly increased and the soil resistivity is reduced.
Usman Muhammad, Nurul Nadia Ahmad, Normiza Mohamad Nor, Fazlul Aman   +3 more
doaj   +1 more source

Impact of time parameters of lightning impulse on the breakdown characteristics of oil paper insulation

High Voltage, 2016
At present, the insulation performances of electrical apparatus under lightning impulse voltages are always evaluated by the withstand test of standard lightning impulse voltage (1.2/50 µs), which is recommended by IEC Standard.
Wenxia Sima, Potao Sun, Ming Yang, Jingyu Wu, Jiefang Hua   +4 more
doaj   +1 more source

Dynamics Modeling and Characterization of Sunk Screw Connection Structure in Small Rockets

Aerospace, 2022
Bolted flange joints are widely used in engineering structures. Sunk screw connection structures commonly used in small rockets and missiles exhibit significant nonlinear characteristics when subjected to forces.
Xiaotian Zhang, Ruiqing Wang, Xiaogang Li, Chengyang Lu, Zhengkang Wang, Wenlong Wang   +5 more
doaj   +1 more source

Investigations on the Performance of a New Grounding Device with Spike Rods under High Magnitude Current Conditions

Energies, 2019
In many publications, the characteristics of practical earthing systems were investigated under conditions involving fast-impulse currents of different magnitudes by field measurements.
Abdul Wali Abdul Ali, Nurul Nadia Ahmad, Normiza Mohamad Nor, Muhd Shahirad Reffin, Syarifah Amanina Syed Abdullah   +4 more
doaj   +1 more source

Muscle-Specific Effective Mechanical Advantage and Joint Impulse in Weightlifting [PDF]

, 2016
Lifting greater loads during weightlifting exercises may theoretically be achieved through increasing the magnitudes of net joint impulses or manipulating the joints’ effective mechanical advantage (EMA).
Harris, Chad, Kipp, Kristof
core   +1 more source

Large Force Fluctuations in a Flowing Granular Medium [PDF]

, 2002
We report the characteristics of the temporal fluctuations in the local force delivered to the wall of a 2D hopper by a granular medium flowing through it.
Easwar, Nalini, Longhi, Emily, Menon, Narayanan   +2 more
core   +3 more sources

Psychosocial Outcomes in Patients With Endocrine Tumor Syndromes: A Systematic Review

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction The combination of disease manifestations, the familial burden, and varying penetrance of endocrine tumor syndromes (ETSs) is unique. This review aimed to portray and summarize available data on psychosocial outcomes in patients with ETSs and explore gaps and opportunities for future research and care.
Daniël Zwerus, Floortje Strobbe, Annemarie A. Verrijn Stuart, Hanneke M. van Santen, Gerlof D. Valk, Sasja A. Schepers, Rachel S. van Leeuwaarde   +6 more
wiley   +1 more source

Impulse Characteristics of Soil Treated with Enhancement Materials and Various Moisture Contents

Applied Sciences
Due to the high mineral contents of additives and enhancement materials (EMs), EMs have become popular in treating soil, which expectedly improves the electrical characteristics of soil.
Usman Muhammad, Fazlul Aman, Normiza Mohamad Nor   +2 more
doaj   +1 more source

Developmental Traits of Impulse Control Behavior in School Children under Controlled Attention, Motor Function, and Perception

Children, 2021
This research surveyed the characteristics of the developmental traits of impulse control behavior in children through parent-report questionnaires.
Hsin-Yung Chen, Ling-Fu Meng, Yawen Yu, Chen-Chi Chen, Li-Yu Hung, Shih-Che Lin, Huang-Ju Chi   +6 more
doaj   +1 more source