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Search Results: 1 - 10 of 97761 matches for " 马文顶 "
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软岩巷道合理支护强度的研究
王彩根,马文,王楚光
岩石力学与工程学报 , 1998,
Abstract: 针对煤矿软岩巷道围岩变形与破坏问题,通过实验研究,确定了有效控制软岩巷道围岩大变形的合理支护强度。并据此研究结果设计了淮南谢桥煤矿极软岩巷道的支护方案与参数。实践证明,研究结果可靠,应用效果良好。
TESTING STUDY ON DEFORMATION FEATURES OF SURROUNDING ROCKS OF GOB-SIDE ENTRY RETAINING IN FULLY-MECHANIZED COAL FACE WITH TOP-COAL CAVING
综放沿空留巷围岩变形特征的试验研究

Zhang Dongsheng,Mao Xianbiao,Ma Wending,
张东升
,茅献彪,马文

岩石力学与工程学报 , 2002,
Abstract: The technique of gob-side entry retaining in fully-mechanized coal face with top-coal caving is the key measure with which the Y type ventilation manner can be used to solve the problem of face gas accumulation. According to the given conditions of Changchun Coal Mine,Luan Bureau,the equivalent material simulation testing is made,and the broken situation and shape of main roof,the influence of different support on roof activity are analysed. The study results provide scientific basis for the determination of the support of gob-side entry and the parameters of roadside filling.
岩石撞击摩擦火花引爆瓦斯的实验研究
屈庆栋,许家林,马文,张少华,蒋坤
煤炭学报 , 2006,
Abstract: 利用专门设计的往复式低速、旋转式高速摩擦实验装置和TVS-2000MKⅡST型红外热成像仪对岩石撞击摩擦火花引爆瓦斯进行了系统的实验研究,得出:岩石中的石英含量对摩擦火花的强度有很大的影响;泥岩无论是低速还是高速摩擦都不能引起瓦斯爆炸;砂岩间摩擦只有在一定的摩擦速度下才可以引起瓦斯爆炸,潮湿的砂岩摩擦很难引起瓦斯爆炸.
SIMULATION EXPERIMENT STUDY ON LAW OF GOB ROOF FALL BASED ON GAS DRAINAGE
基于瓦斯抽放的顶板冒落规律模拟试验研究

HUANG Bingxiang,LIU Changyou,CHENG Qingying,LI Zenghua,MA Wending,
黄炳香
,刘长友,程庆迎,李增华,马文

岩石力学与工程学报 , 2006,
Abstract: 为了给采空区瓦斯抽放高位长钻孔的设计提供依据,采用相似模拟试验与关键层理论分析采空区顶板产生裂隙、断裂、冒落和离层情况及其变化规律。随工作面的推进,关键层的弯曲变形经历从缓慢-剧烈-缓慢-破断的过程:亚关键层的弯曲下沉范围明显小于主关键层。关键层破断后,其下采空区两侧垫层的弹性变形得到恢复,下沉位移出现反弹。关键层的承载作用和岩层力学特性的差异使关键层间顶板的垮落角不同。覆岩关键层的破断使工作面顶板垮落角减小、周期垮落步距和来压强度都增大。依据覆岩关键层的破断形态、顶板的垮落角和周期来压(垮落)步距可以确定瓦斯抽放钻孔的终孔位置和钻场间钻孔的压茬距离,并预测钻孔的抽放瓦斯效果。
试论《伤寒论》之厥阴病
Discussion of the Jue Yin Disease in Shanghan Lun
 [PDF]

燕茹, 马文
Traditional Chinese Medicine (TCM) , 2013, DOI: 10.12677/TCM.2013.22005
Abstract: 刘绍武先生通过对《伤寒论》厥阴病篇条文的研究,提出《伤寒论》第326条不能作为厥阴病的提纲条文,其所论述的证候均属于消化系统里部病候。认为厥阴病的提纲应为:“厥阴之为病,手足逆冷、脉细、恶寒、肢节痹痛。”厥阴病属于表部的阴性病,当以当归四逆汤治疗。
After study the Jue Yin disease on the Shanghan Lun, Shaowu Liu proposed that Article 326 can’t synopsis as Jue Yin disease. It discussed syndromes all belongs to the digestive system in the department. He believes Jue Yin disease synopsis should be: “Jue Yin is a disease, cold symptoms as deep cold sensation of the limbs, weak pulse, aversion to cold, limb arthralgia.” Jue Yin disease is a external yin disease, which should be treated by using Danggui Sini Tang.
NONLINEAR RHEOLOGICAL MATHEMATICAL-MECHANICAL MODEL OF SURROUNDING ROCK DEFORMATION OF ROADWAYS OR TUNNELS AND ITS PRELIMINARY APPLICATION
巷道/隧道围岩非线性流变数学力学模型及其初步应用

WAN Zhi-jun,ZHOU Chu-liang,MA Wen-ding,LIU Chang-you,
万志军
,周楚良,马文,刘长友

岩石力学与工程学报 , 2005,
Abstract: A set of 3D rheological testing apparatus for surrounding rock of roadways or tunnels was developed by the authors,and rheological experiments and monitoring on it have been going on for over 10 years. Based on attenuation characteristics of long-term strength and strain energy conservation law of rock,a nonlinear rheological mathematical-mechanical model of rock is established,which differs form composite models of elastic,plastic or viscous elements. Based on this model,a nonlinear rheological mathematical-mechanical model of surrounding rock deformation of roadways or tunnels is established. Uniaxial compression strength can be converted to triaxial compression strength by linear Mohr strength theory,so uniaxial compression strength can be used to calculate 3D strain of surrounding rock of roadways or tunnels. The rheological values of surrounding rock deformation of roadways or tunnels calculated with the model are in good coincidence with the values obtained by experiments. The model is successfully applied to forecasting the width of loosened zone of a roadway.
高频大电流不断电除冰方法
High Frequency High Current Uninterrupted Power Serving De-icing Method
 [PDF]

胡书昌, 王树, 马文
Smart Grid (SG) , 2011, DOI: 10.12677/sg.2011.11007
Abstract: 为了在除冰的同时,达到不影响电网连续供电、不改变电网潮流分布、不向电网注入谐波的目标,提出采用高频大电流通过输电线路与外加滤波装置构成回路的方式除冰的方法。高频大电流的集肤效应明显,导线发热功率高。计算及仿真结果表明,提出的除冰方法效果明显,操作方便。
The de-icing method is given that the high frequency large current flow past transmission lines and extra filtering device forming the circuit. The method ensures to remove ice, at the same time not to affect the continuous supply of power, not to change the power distribution network and not to inject harmonics to the grid. High frequency large current has obvious skin effect and wiring heating power high. The results of si-mulation and calculation show that it has obvious effect and easily operates.
发展贵州民族医药,促进贵州中药现代化
马文
世界科学技术-中医药现代化 , 1999,
Abstract: 民族医药是一个民族在其生存环境中,与疾病作斗争所产生和形成的医药理论知识、技术技能与物质世代积累的总和。民族医药有其鲜明的继承性和地域性。中国医药体系是四大民族医药体系(尤纳尼、吠陀及玛雅—阿兹台卡体系)之一,而且是对本民族和他民族的生存繁衍与健康事业作出卓越贡献的传统医药学;世界上没有哪一个民族的传统医药体系,可与中国医药体系在世界上分布广泛程度和接受治疗的人数之多相比拟。我国是一个由56个民族组成的多民族的国家,各民族都在长期与疾病的斗争实践中积累了自己丰富多彩的民族医药,共同构成了我们伟大祖国的传统医药,成为我国优秀传统文化的重要组成部分,也是我国乃至世界医药科学的重要的组成部分。因此,
高觉敷教授在心理学史上的贡献
马文
心理科学进展 , 1987,
Abstract: 1986年10月30日,南京师大、江苏省政协、九三学社江苏省委、商务印书馆、江苏省社科院、江苏教育出版社等单位,联合为心理学史专家高觉敷教授从教六十三周年暨九十寿辰举行庆祝会。江苏省付省长兼教委主任杨泳沂致贺词说,“高老是一位对心理学事业的发展做出贡献的、驰名中外的心理学家,又是一位学识渊博、有管理才干、为党和国家培育了许多栋梁之材的教育家,他还是一位热爱祖国、热爱党、对马列主义矢志不渝的
达尔文进化论对心理科学的历史贡献——纪念达尔文逝世一百周年
马文
心理学报 , 1983,
Abstract: 本文系统地评述了达尔文进化论对心理科学的贡献和影响:1.论人和动物在心理上的连续性;2.对人及动物的表情的研究;3.对本能的研究和动物心理学的兴起;4.进化论与儿童心理学的研究;5.高尔顿关于天才遗传和个别差异的研究;6.达尔文进化论对中国心理学界的影响。
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