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由量纲和谐原理看爆破地震安全距离K系数取值的合理性
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作者 梁有国 《水运工程》 北大核心 1991年第1期50-53,共4页
本文根据量纲分析原理,结合科研试验和工程实测资料分析工程爆破引起的岩层或土体震动的地面衰减规律,通过对较典型且可比性好的八种情况下爆破实测的地面震动衰减规律进行比较分析,对一般工程取用国家标准安全震速中K系数的主要影响因... 本文根据量纲分析原理,结合科研试验和工程实测资料分析工程爆破引起的岩层或土体震动的地面衰减规律,通过对较典型且可比性好的八种情况下爆破实测的地面震动衰减规律进行比较分析,对一般工程取用国家标准安全震速中K系数的主要影响因素进行定性定量的初步分析,并提出经验估算每次(或每段)起爆的安全炸药量的建议方法。 展开更多
关键词 量纲 谐原理 爆破地震 安全距离K系数 取值 合理性 爆破工程 安全炸药量
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东芝油浸式移相变压器在西气东输二线的应用
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作者 韩小虎 张伟 《科技创新与应用》 2015年第4期44-45,共2页
高压大容量变频器的整流部分一般都使用晶闸管或二极管等电力电子器件,而这种电力电子器件的开关特性会对主电网产生谐波污染。利用移相变压器的二次侧相移可以有效的消除高次谐波,使输入谐波大大减小,提高功率因数。文章介绍了西二线... 高压大容量变频器的整流部分一般都使用晶闸管或二极管等电力电子器件,而这种电力电子器件的开关特性会对主电网产生谐波污染。利用移相变压器的二次侧相移可以有效的消除高次谐波,使输入谐波大大减小,提高功率因数。文章介绍了西二线电驱站内所用东芝油浸式移相变压器的移相方法,并对移相后的谐波消除原理进行了研究。 展开更多
关键词 移相变压器 移相方法 谐原理
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论中国古代诗歌的诗性时空 被引量:1
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作者 班澜 《内蒙古社会科学》 北大核心 2000年第5期69-75,共7页
本文从时空表现角度,探讨了中国古典诗歌建构的谐动与成空的特征及规律。
关键词 古代诗歌 诗性时空 时间 诗歌建构 原理
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Biological macro-idea and criterion of osteopathic fracture immobilization in China's traditional mongolian medicine 被引量:5
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作者 照那木拉 王梅 李学恩 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2012年第1期114-118,共5页
OBJECTIVE:To investigate the biological macro-idea and criterion of osteopathic fracture immobilization in China's traditional Mongolian medicine.METHODS:Based on biological naturalism regarding the relationship b... OBJECTIVE:To investigate the biological macro-idea and criterion of osteopathic fracture immobilization in China's traditional Mongolian medicine.METHODS:Based on biological naturalism regarding the relationship between man and universe(including psychosomatic integration) in osteopathic fracture immobilization in China's traditional Mongolian medicine,we used modern physiopsychological and biomechanical principles and methods to investigate the biological macro-characteristics of humanization,behaviorism,and wholism in "dynamic" fixation of fractures.RESULTS:Osteopathic fracture immobilization in China's traditional Mongolian medicine is based on the fixation criterion of macro-idea and method as well as on geometry,mechanics,motion,and stress and psychological stability in "non-sheltered fixation" of fractures contained in the life view of nature,regarding the relationship between man and universe(including psychosomatic integration) and on harmony between the limbs and the whole body,between body and function,and between man and nature.CONCLUSIONS:Osteopathic fracture immobilization in China's traditional Mongolian medicine is fixation without trauma or shelter.The principle and method of whole,dynamic,and functional fixation of fractures is not only radical,but also represents a new direction for developing the principle and method of fracture immobilization. 展开更多
关键词 Osteopathy in China's traditional Mongolian medicine External fixation Self Fixation Biological fixation Macro-idea Norm
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Performance Improvements in Temperature Reconstructions of 2-D Tunable Diode Laser Absorption Spectroscopy(TDLAS) 被引量:9
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作者 Doo-Won Choi Min-Gyu Jeon +3 位作者 Gyeong-Rae Cho Takahiro Kamimoto Yoshihiro Deguchi Deog-Hee Doh 《Journal of Thermal Science》 SCIE EI CAS CSCD 2016年第1期84-89,共6页
Performance improvement was attained in data reconstructions of 2-dimensional tunable diode laser absorption spectroscopy(TDLAS). Multiplicative Algebraic Reconstruction Technique(MART) algorithm was adopted for data ... Performance improvement was attained in data reconstructions of 2-dimensional tunable diode laser absorption spectroscopy(TDLAS). Multiplicative Algebraic Reconstruction Technique(MART) algorithm was adopted for data reconstruction. The data obtained in an experiment for the measurement of temperature and concentration fields of gas flows were used. The measurement theory is based upon the Beer-Lambert law, and the measurement system consists of a tunable laser, collimators, detectors, and an analyzer. Methane was used as a fuel for combustion with air in the Bunsen-type burner. The data used for the reconstruction are from the optical signals of 8-laser beams passed on a cross-section of the methane flame. The performances of MART algorithm in data reconstruction were validated and compared with those obtained by Algebraic Reconstruction Technique(ART) algorithm. 展开更多
关键词 Data Reconstruction TDLAS MART ART
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