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Thermal Stability of Low Cost Nd-Fe-B Magnets连法增,任建军,艾禄,张效时,赵恒和摘 要:<正> 1.IntroductionSince the Nd-Fe-B magnets appearedin 1983,researchers,producers and users ofthe permanent magnetic materials have paidgreat attention to them.Because the mag-nets have low Curie temperature Tc andbad thermal stability as well as easeoxidation,their applications......
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Phase stability and structural distortion of NiO under high pressure ZHANG Wei-bing(张卫兵), HU Yu-lin(胡玉林), TANG Bi-yu(唐壁玉) Key Laboratory of Advanced Materials and Ryeological Properties of Ministry of Education, Department of Physics, Xiangtan University 411105, China Received 10 April 2006; accepted 25 April 2006 Abstract: The phase stability and structural distortion of NiO under high......
J. Cent. South Univ. (2019) 26: 1687-1695 DOI: https://doi.org/10.1007/s11771-019-4125-4 Probabilistic seismic stability of three-dimensional slopes by pseudo-dynamic approach PAN Qiu-jing(潘秋景)1... is a rational approach for engineering design because it provides more insight than traditional deterministic analysis. Probabilistic evaluation on seismic stability of three dimensional (3D) slopes......
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J. Cent. South Univ. (2017) 24: 1121-1132 DOI: 10.1007/s11771-017-3515-8 Stability and control of room mining coal pillars-taking room mining coal pillars of solid backfill recovery as an example... Abstract: The stability of room mining coal pillars during their secondary mining for recovering coal was analyzed. An analysis was performed for the damage and instability mechanism of coal pillars......
J. Cent. South Univ. (2016) 23: 2382-2396 DOI: 10.1007/s11771-016-3297-4 Limit equilibrium stability analysis of slopes under external loads DENG Dong-ping(邓东平), ZHAO Lian-heng(赵炼恒), LI Liang(李亮... of external load on slope stability, i.e., mode I in which the external load is thought to act on slope surface, and mode II in which the external load is thought to act on slip surface along the force......
Map-based control method for vehicle stability enhancementMoon-Young Yoon1, Seung-Hwan Baek1, Kwang-Suk Boo2, Heung-Seob Kim2(1. Graduate school of Mechanical Engineering, Inje University 607, Obang... control method to improve a vehicle’s lateral stability, and the performance of the proposed method is compared with that of the conventional model-referenced control method. Model-referenced control......
systems to improve power system stability Abdolkhalegh Hamidi, Jamal Beiza, Ebrahim Babaei, Sohrab Khanmohammadi Departement of Electrical Engineering, Shabestar Branch, Islamic Azad University... current/high voltage direct current (HVAC/HVDC) power system is presented to study power system stability. It is well known that appropriate coupling of inputs-outputs signals in the multivariable HVDC......