太阳在不同阶段的核聚变

由太阳在H燃烧阶段的核聚变机制出发,推出了太阳在He燃烧阶段、C燃烧阶段的核聚变机制,并得出结论：太阳进入H燃烧、He燃烧、C燃烧等各个平稳阶段,其核聚变是间歇地进行着;太阳核聚变是一级一级地进行,一级进行完了才能到下一级,即H燃烧完He燃烧才能进行、He燃烧完C燃烧才能进行、C燃烧完Mg燃烧才能进行等。     

海州露天矿坑内灭火工程方案浅析

露天煤矿残煤自然发火是露天煤矿存在的普遍问题,严重污染大气环境及露天生产的安全。文章探讨了露天矿灭火的产生原因、灭火工程方案的确定及施工的工艺。     

部分气化联合循环发电系统热力性能分析

针对增压部分气化2种增压流化床(PFB)锅炉半焦燃烧和2种常压流化床(CFB)半焦燃烧的先进增压流化床燃烧联合循环(APFBC-CC)方案,进行了系统热力性能计算, 分析比较了主要参数对系统性能的影响. 结果表明,将PFB锅炉高温烟气引入部分气化炉的方案一避开了高温烟气过滤式除尘器, 但降低了煤气热值和系统效率; 方案二则可获得较高的系统效率, 然而高温过滤式除尘器目前技术上有一定困难, 需降温运行; 方案三、四采用CFB锅炉半焦燃烧系统, 其中方案四采用气化空气/蒸汽预热方法, 不仅可获得较高的煤气热值, 而且可提高系统效率.     

对武汉国民政府二次北伐中河南枪会的再认识

河南枪会在二次北伐中与直奉军阀的对抗,虽在客观上为北伐的胜利做出了一定贡献,但仍属自发性的斗争,而并非参加革命。武汉国民政府和中国共产党对枪会的争取利用没有成功。枪会的基本属性没有发生质的变化,仍是受地主豪绅控制的农民自卫组织。     

燃烧热测定过程中氧弹内极限温度和极限压力的预测

利用平均热容法和理想气体状态方程,预测了苯甲酸燃烧热测定过程中氧弹内的极限温度和极限压力。这些结果对安全地测定燃烧热具有指导意义。     

EXPERIMENTAL INVESTIGATIONS ON PRESSURIZED FLUIDIZED BED COMBUSTION(PFBC)FOR HIGH ASH COAL

The first phase of the experimental investigation in our institute on pressur-ized fluidized bed combustion(PFBC)technology is introduced,and the results of fivetests are presented.The combustion efficiencies were as high as 97% 98% when high ashcontent coal was burnt in PFBC,and the sulphur retention efficiencics were 80%-85%with the Ca/S mole ratios between 1.5-1.8.The particulate content in flue gas at the out-let of high temperature gas clean-up system was 189mg/m~3(normalized).The average di-ameter of particles was 2.5-3μm and the weight fraction of particles with diameter largerthan 10μm was not greater than 3%.     

平煤集团十三矿综采地质因素分析及地质保障措施

断裂构造不仅严重影响了煤层开采,同时能诱发突水、煤层自燃、瓦斯突出、岩浆体（脉、墙）侵入和顶板冒落等灾害性事故,由此影响矿井的经济效益和安全生产.本文在综合分析影响平煤集团十三矿综采的地质因素的基础上,针对地质及其它诱发性灾害事故,经数值模拟计算和理论分析,提出了平煤集团十三矿的煤矿安全、经济生产的地质保障措施.     

EXPERIMENTAL STUDY ON PREMIX COMBUSTION AT ISOSCELES TRIANGLE TYPE RATE OF HEAT RELEASE FOR SQUISH TYPE COMBUSTION CHAMBER

ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｐｒｅｓｓｕｒｅｇｒａｐｈｇｉｖｅｎｂｙＬｉｎｉｎ 1 960ｏｆｆｏｕｒｔｙｐｅｓｋｉｎｄｓｏｆｒａｔｅｏｆｈｅａｔｒｅｌｅａｓｅｓｈｏｗｅｄｔｈａｔｔｈｅｉｓｏｓｃｅｌｅｓｔｒｉａｎｇｌｅｔｙｐｅｒａｔｅｏｆｈｅａｔｒｅ ｌｅａｓｅｗａｓｉｄｅａｌｏｎｃｏｎｄｉｔｉｏｎｏｆｔｈｅｓａｍｅｍａｘｉ ｍｕｍｐｒｅｓｓｕｒｅ .Ｔｈｅｃｏｎｃｌｕｓｉｏｎｉｓａｌｓｏｒｅａｃｈｅｄｉｎｔｈｅｒｍｏｄｙｎａｍｉｃｓ.Ｉｔｉｓｐｏｐｕｌａｒｌｙａｃｃｅｐｔｅｄｔｈａｔｔｈｅｌａｒｇｅ…     

Negative Valve Overlap Mode of HCCI Operation Using Gasoline and Diesel Blended Fuels

The negative valve overlap (NVO) strategy of HCCI operation was experimentally investigated on a gasoline HCCI engine operated with variable valve timing in association with the addition of diesel fuel. The experimental results show that, by using gasoline and diesel blended fuels, the required NVO interval for suitable HCCI combustion under a given engine speed and a moderate compression ratio condition could be reduced, and the HCCI combustion region was extended remarkably without substantial increase in NOx emissions under a given inlet and exhaust valve timing due to the improvement of charge ignitability. In addition, the possible scale of NVO was extended. A substantial increase in the lean limit of excess air ratio and the upper limit of load range can be achieved because of higher volumetric efficiency, resulting from the decrease in the required NVO and the presence of less residual gases in cylinder.     

染色体多态性与生殖异常的关系探讨

通过对生殖异常人群进行外周血染色体培养以及对G显带染色体核型分析,将染色体多态核型和正常核型人群分组,以比较两组人群的生殖异常的发生率,结果显示染色体多态组的生殖异常率高达68.6%,明显高于染色体正常组,二组比较具有高度显著性差异。提示染色体多态与生殖异常有一定的关系。