排序方式: 共有23条查询结果,搜索用时 15 毫秒
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由于阻燃式反吹风料仓内部风力输送系统,在使用过程中容易造成风压过大,导致气流中夹带的烟粉和烟粉末在超标压力下大量外扬,通过采用增设负压装置平衡系统内气流压力的方案,有效改善了除尘效果。另外,用带分度盘的皮带传动替代了复杂的行星摆线针轮减速器,节省了投入,且操作维护简便。 相似文献
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木质刨花形态对水泥刨花板性能的影响 总被引:2,自引:0,他引:2
文中以刨花长度、麻片比例为试验因素,探讨不同木质形态刨花和麻片含量对水泥刨花板的力学性能的影响。 相似文献
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NAO SUDO 《Journal of Money, Credit and Banking》2012,44(6):1225-1244
The comovement of output across the sector producing nondurables (i.e., nondurable goods and services) and the sector producing durables is well established in the monetary business cycle literature. However, standard sticky‐price models that incorporate sectoral heterogeneity in price stickiness (i.e., sticky nondurables prices and flexible durables prices) cannot generate this feature. We argue that an input–output (I–O) structure provides a solution to this problem. Here, we develop a two‐sector model with an I–O structure, which is calibrated to the U.S. economy. In the model, each sector’s output affects those of the others by acting as an intermediate input. This connection between the sectors provides a channel through which sectoral comovement is induced. 相似文献
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文章从国内外帘子布行业的现状及其格局的重新调整,汽车、公路运输业、轮胎相关行业的现状及发展前景,加入WTO和国家宏观政策变化对帘子布行业的影响等方面进行全面、深层次的分析,应用两种数学公式模型对未来15年的国内帘子布市场需求量的上下限进行预测,并提出应对措施。 相似文献
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框架填充墙结构在地震作用中受到的破坏最为严重,亟需提出针对该类结构合理有效的分析和计算模型。文章中,对一幢纵横向均为三跨的五层框架填充墙结构采用SAP2000结构分析软件进行有限元分析,先后按实际填充墙布置建模、以及按照等效斜撑布置建模,对比规范规定的采用0.7的周期折减系数的分析方法。验证了规范中所采用的周期折减系数是严重低估填充墙对框架结构刚度的影响的,在设计中将导致严重安全隐患。并同时提出了更为简便、且满足工程要求的等效斜撑截面面积计算方法,建议在框架填充墙结构的相关分析和设计中采用此方法。 相似文献
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在考虑非饱和基质吸力条件下,基于Bishop单值有效应力非饱和土强度理论和Fredlund双应力变量非饱和土强度理论,探讨在传统的Sarma法中实现非饱和边坡的稳定性分析的思路和方法,开发了可考虑基质吸力的Sarma条分法的相关程序,并针对一个非饱和土滑坡进行稳定性分析,结果表明:两种改进的Sarma法在分析非饱和土边坡时基质吸力影响的考虑方式不同,这种差异会对计算结果产生一定影响,但误差是有限的。 相似文献
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分析了国内外误差参数识别的方法,详细介绍了四线法识别和检测数控机床空间几何误差的过程和步骤,通过分析四线法的识别机床误差的工程,进一步识别数控机床空间几何误差的各项误差元素。为后续机床误差补偿提供理论依据。 相似文献
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In order to make decisions all companies need information. As a rule, all the informatics systems of a company contain a multitude of data and turn these data into information that has to be analyzed in order to make decisions. It is a slow process. The solution of this drawback is given by Business Intelligence (BI) applications that can help companies increase income or diminish costs by offering the executive management appropriate information on the basis of which quick and efficient decisions can be taken.
The main purpose of the paper is to prove the necessity that BI tools should be used by the modem manager. Managers are aware of that by putting into practice the BI solutions, opportunities of getting control over the business process and methods are improved and better, timely analysis functions of the performance parameters can be obtained. 相似文献
The main purpose of the paper is to prove the necessity that BI tools should be used by the modem manager. Managers are aware of that by putting into practice the BI solutions, opportunities of getting control over the business process and methods are improved and better, timely analysis functions of the performance parameters can be obtained. 相似文献