论文部分内容阅读
井下煤仓涌仓事故的原因及预防措施
【机 构】
:
枣庄矿务局山家林矿
【出 处】
:
煤矿安全
【发表日期】
:
1995年11期
其他文献
Synthesis and Characterization of Luteinizing Hormone-Releasing Hormone (LHRH)-Functionalized Mini-D
Luteinizing hormone-releasing hormone (LHRH) is the key regulator of the hypothalamic-pituitary-gonadal (HPG) axis, which is responsible for the development and
Combined Experimental and Computational Investigation of 2-(2-Hydroxyphenylimino) Phenolic Derivativ
A series of substituted 2-(2-hydroxyphenylimino) phenolic (salen) derivatives (1-4) have been synthesized and their structures of obtained compound were charact
Unprecedented cycloaddition reactions of azatrienes (1) with sulfene leading to the synthesis of functionalized thiazinedioxide derivatives (5) are described. T
根据第六次全国人口普查的初步结果,中国人口总量仍然较大,但增速明显放缓;中国正经历着深刻的人口转变,今后面临的人口问题将由人口的数量控制为主转变为人口存量、素质、结构和
Green Synthesis of Novel 5-Arylazo-2-[(2S, 3S, 4R, 5R)-3, 4, 5-Trihydroxy-6-(Hydroxymethyl) Tetrahyd
Introduction: Pyridone derivatives played important roles in the last decade to approach many and different functionalities, especially as antitumor, antibacter
2015年5月29日,西北地区高校教师教学发展中心联盟成立大会在西安交通大学隆重举行,联盟共吸引了来自西北五省的130所高校和单位加盟。教育部高教司副司长韩筠,陕西省教育厅常务
本文根据现场生产和实测资料,从理论上论述了回采工作面支护密度的确定方法。回采工作面支护密度主要考虑每棵支柱的支护面积,其值依据顶板压力大小和支柱平均工作阻力而定。
Solvent-Free Synthesis of 5-Alkenyl-2,2-butylidene-1, 3-dioxane-4,6-diones under Ultrasonic Irradiat
5-Alkenyl-2,2-butylidene-1,3-dioxane-4,6-diones were synthesized by the Knoevenagel condensation reaction of aromatic aldehydes with 2,2-butylidene-1,3-dioxane-