Results 21 to 30 of about 794,434 (267)

Stability evaluation and rockfall trajectory analysis of the Baimagou dangerous rock mass in Mingshan County of Sichuan Province

Zhongguo dizhi zaihai yu fangzhi xuebao, 2022
Dangerous rock mass refers to the rock mass that is cut by the structural plane and fails under certain inducing factors. As one of the common natural geological disasters, it seriously affects the safety of human life and property in mountainous areas ...
Yonghai ZHANG, Wuping XIE, Zhongxing LUO, Shibin ZHAI   +3 more
doaj   +1 more source

Staticposture stability evaluation of female elderly using stability evaluation device [PDF]

Journal of the Korea Academia-Industrial cooperation Society, 2011
Abstract The purpose of this study is to investigate the change of balance ability on aging by measuring balance ability of elderly females whose age is over 65. The subjects are ten elderly women (the mean age: 71.9) able to walk without assistants, the assistant equipments and drug dependence and ten young healthy women (the mean age: 23.2).
Tae-Hyung Kim, Jae-Hoon Yi, Seong-Geun Oh   +2 more
openaire   +1 more source

Influence of storage layout on stability of horizontal storage group in bedded salt rocks

You-qi chuyun, 2022
With the rapid development of China's economy and society in recent years, the demand for oil and natural gas is growing day by day, and a large number of underground energy reserves have begun to be built in salt rocks.
Xue BAI, Deyi JIANG, Wei LIU, Zhixin ZHANG, Xiong ZHANG   +4 more
doaj   +1 more source

Stability Analysis of a Typical Salt Cavern Gas Storage in the Jintan Area of China

Energies, 2022
Using underground space to store natural gas resources is an important means by which to solve emergency peak shaving of natural gas. Rock salt gas storage is widely recognized due to its high-efficiency peak shaving and environmental protection.
Jingcui Li, Jifang Wan, Hangming Liu, Maria Jose Jurado, Yuxian He, Guangjie Yuan, Yan Xia   +6 more
doaj   +1 more source

A Technique for the Evaluation of Emulsion Stability

Journal of Pharmacy and Pharmacology, 1960
Abstract An economical sampling and statistical treatment has been developed for screening the stability of experimental fat emulsion formulations. Coalescence or progressive increase in mean globule diameter with passage of time was interpreted to indicate physical instability. The test technique attempts to efficiently extract reliable
W, SASKI, M H, MALONE
openaire   +2 more sources

Evaluation of slope stability in open pit based on 3D geological modeling and DFN

Shuiwen dizhi gongcheng dizhi
This study addressed the limitations of conventional numerical simulation techniques for discrete rock masses and joints by introducing a novel method for assessing slope stability in open-pit mines.
Yongji CHEN, Tingke YAN, Cong LIU
doaj   +1 more source

Genetic mechanisms and a stability evaluation of large landslides in Zhangjiawan, Qinghai Province

Frontiers in Earth Science, 2023
It is important to study the instability law of typical landslides to understand the evolution of regional landslides and for disaster prevention. This study uses the Zhangjiawan landslide in Xining City, Qinghai Province, as an example.
Yuanzao Wu, Yuanzao Wu, Yuanzao Wu, Yangdan Dong, Zhanxi Wei, Zhanxi Wei, Zhanxi Wei, Jianhui Dong, Jianhui Dong, Liang Peng, Liang Peng, Pan Yan, Wenli Ma, Wenli Ma, Wenli Ma   +14 more
doaj   +1 more source

Evaluation of contact stability between objects

Proceedings of International Conference on Robotics and Automation, 2000
In assembly operations, there are various constraint states while a moving object is in contact with a fixed object. For different constraint states, the existent regions of contacting forces, geometrical constraints, possible object displacements, which can be expressed by polyhedral convex cones respectively, are different. We consider that the sizes
Yu, Yong, Yoshikawa, Tsuneo
openaire   +2 more sources

Comprehensive Review of Short-Term Voltage Stability Evaluation Methods in Modern Power Systems

Energies, 2021
The possibility to monitor and evaluate power system stability in real-time is in growing demand. Whilst most stability-related studies focus on long-term voltage stability and frequency stability, very little attention is given to the issue of short ...
Aleksandar Boričić, José L. Rueda Torres, Marjan Popov   +2 more
doaj   +1 more source

Evaluation of Simulations for Short-Term Voltage Stability Assessment with Respect to Model Uncertainties

Eng
In order to evaluate the short-term voltage stability of an electrical power grid, it is necessary to employ not only systematic and well-targeted fault simulations, but also an evaluation method that assesses the criticality of the individual scenarios.
Dorothee Nitsch, Hendrik Vennegeerts
doaj   +1 more source