岩巷探放采空区积水技术在煤矿中的研究与应用

本文重点介绍了在岩中巷对采空区积水探放技术在鹤煤八矿3002(北)积水区进行疏放水的研究与应用,通过实施运用该探放水技术,成功的将3002(北)采空区内大量积水疏放干净,确保了3004(北)煤巷工作面的安全掘进以及后期3004(北)采煤工作面的安全回采。     

The impact of mechanized processing of cassava on farmers’ production efficiency in Uganda

The study investigates the impact of adopting mechanized processing of cassava on farmers’ production efficiency in Uganda. A stochastic production function, using translog functional form, was used to compare efficiency measures of farmers in mechanized cassava-processing villages compared with the farmers in nonmechanized cassava-processing villages in 2014. Given the specification of the translog production function, the mean technical efficiencies of the farmers were 0.69 and 0.52 in mechanized and nonmechanized villages, respectively. The significant determinants of technical inefficiency among the respondents are farming experience, education, membership of farmer association, access to markets, sale of cassava to processors and farmers who planted cassava as sole crop are all negative, which confirm to a priori expectations and significant at different levels. The policy implication of the study is that mechanization of cassava processing, particularly if done at the right scale, could create demand that can transform primary production for increased yields, higher incomes and production efficiency of smallholder farmers who constitute a significant proportion of Uganda’s agricultural sector.     

构成元素在欧式商务会所设计中运用的研究

在设计商务会所的时候,重点就是要考虑点、面、线以及色彩等各种构成元素。本文对这些元素在商务会馆中的具体应用进行了重点论述。     

乌兰矿5344综放工作面火灾的抢险救灾

本文介绍了5344综放工作面发生火灾的过程及抢险救灾经过,对发生火灾的原因进行了分析,提出了应该吸取的教训和采取的措施。     

基于嵌入式技术开发的升降横移式立体车库演示平台

本设计以51系列单片机为核心控制单元,结合RFID射频识别技术、传感器技术及无线通信技术,建立了一套基于嵌入式技术的高效利用车库空间自动摆放及空车位查询的升降横移式立体车库系统。试验证明,该系统具有功能丰富,高可靠性等优点,具有一定的实用参考价值。     

高层结构施工应注意的几个问题

针对铜陵地区特殊的地质条件,文章就高层建筑地下室地基土方施工应注意的问题,以及本地区高层建筑施工中混凝土施工缝留设、地下室混凝土壁板抗渗、钢筋施工、混凝土界面处理等方面常见的问题及处理措施进行了分析。     

婚庆仪式的经济社会学分析——以哈尔滨为个案

在婚庆仪式中形成的面子行为,分为道德性、社会性和互动性三个方面,其分别指：恪守婚庆礼俗的面子行为、通过展现或炫耀家庭地位和财力的面子行为及婚庆互动中参与者给予面子的行为。分析表明,面子行为的特点凸显炫耀性、行为主体以家庭为核心、行为强度与家庭行为能力正相关,但并非同比例增强、行为互动体现人际关系的差序格局、行为原则体现情感型利益的博弈。     

综采倒牵方式回撤液压支架

本文主要阐述了综采回撤的必要性和倒牵回撤的可能性,提出了综采回撤的必要性,倒牵回撤的可能性。提出了合理的工序安排,最佳的运输线路,支护选择,工作面回撤空间施工工艺,总结了取得的效果和经验教训。     

论安全玻璃在高层建筑中的使用

本文根据几种建筑玻璃的特性,从安全的角度讨论了高层安全玻璃的选择。     

Rainfed mechanized farming and deforestation in central Sudan

Sudan is threatened by a serious deforestation problem. Total forested area decreased by about 20 percent over the last two decades, largely as a result of the expansion of rainfed mechanized farming (RMF). To safeguard against the problems of deforestation, the government's Mechanized Farming Corporation requires each farmer to leave at least ten percent of the total farm area under shelterbelts. Few farmers pay attention to this clause. This paper addresses the problem of RMF expansion and analyzes the effects of different factors on the preservation of shelterbelts. Results indicate that the following factors influence the decision to preserve shelterbelts: farmer's belief in the value of shelterbelts, the production of gum arabic, farm size, farmer's wealth, years a farm has been cultivated, and type of farm.