浅谈合唱活动对校园精神文化建设的促进作用

合唱活动是校园里最活跃、最具广泛群众基础的校园文化活动表现形式之一。合唱活动有助于校风建设,特别是能培育师生的集体主义情感和增进师生友谊;合唱活动有助于教风建设,特别是能加强教师师德修养,促使教师更加敬业;合唱活动有助于学风建设,特别是能促进学生明确学习目的,激发学生的爱国热情和学习热情,还能提高学生的综合能力。     

关于加强企业经济活动监督工作的思考

企业经济活动监督工作往往存在着领导重视不够,不能全面参与;监察人员不够,不能全程参与;部门沟通不够,不能及时参与等不足。加强企业经济活动监督工作,要从组织上保证,加强纪委在经济活动中的监督地位;从制度上保证,加强纪律检查与管理工作有机融合;从机制上保证,加强纪委与业务部门联动联管合力。在开展经济活动监督工作时,要严格项目立项,实行项目管理集体决策;严格项目评审,规范业务管理操作程序;严格价格结算,及时审减项目开支费用;严格廉洁承诺,预防违纪违规问题发生。     

Effect of mass transfer on the deactivation model and GPLE parameters of Co/γ-Al2O3 catalysts in the Fischer Tropsch synthesis

The activity of catalysts with various sizes was compared in a fixed-bed Fischer–Tropsch reactor under similar operating conditions by determining the deactivation model. Catalyst size had no impact on the type of deactivation model. The smaller catalyst showed a smaller deactivation constant of catalyst (k_d) and a lower deactivation rate in the initial stage. The decline in the activities of the catalyst with a mesh size of 40 was lower than the other catalysts, suggesting its higher long-term stability (a_ss). Larger catalyst sizes led to the fouling of carbon and heavy hydrocarbons, decreasing the specific surface of the catalyst, thus increasing the pore diffusion resistance and further decrementing the catalyst activities.     

Frequency of the sit to stand task: An observational study of free-living adults

The sit to stand movement is a key determinant of functional independence. Knowledge of the frequency with which the sit to stand movement is performed throughout the day could inform workplace ergonomics, but has rarely been examined.Healthy adults (n = 140) were recruited from the general population. Free-living activity for each participant was reported using an activity monitor. On average, participants performed 60 (±22) sit to stand movements each day. Participants in indoor sedentary occupations performed significantly more sit to stand movements per day than participants in outdoor active occupations (66 vs. 54; n = 102; p = 0.003). Participants (n = 33) performed significantly more sit to stand movements on working days than on non-working days (65 vs. 55; p = 0.018).This analysis provides contemporary data for sit to stand frequency in a predominantly working population, and demonstrates that work and employment have a significant effect on that frequency.     

Measuring the global construction industry: improving the quality of data

In the context of a truly global market for construction, an international strategy is required to ensure that national and international statistical systems are able to provide accurate and valid information. In many parts of the world the collection of reliable national information on construction activity is not an easy task, and the measurement of comparable, cross-national data can be problematic. This paper considers possible strategies for the improvement of data collection systems in the context of user needs.     

固液平衡关系的推算研究

本文为解决二组元连续固体溶液型固液平衡的熔化线测定的困难,提出了一种推算方法。即在实验准确测得凝固线的情况下,经热力学推导,得出各组分的无限稀释活度系数,然后由Van Laar方程关联液相活度系数,从而推算出熔点线。最后,对已知固液平衡关系的实际体系应用此法进行了推算验证。     

微粒电解锰的电化学活性

本文用肼指数(活度)和电池放电两种方法对微粒EMD和EMD理化及电性能进行比较,并试图剖析微粒EMD的电化学行为,文中给出了微粒EMD和EMD的M值指数。     

快速测试EMD电性能

本文采用聚四氟乙烯乙炔黑(TAB)电极,在不同电液中以恒流放电快速测试EMD活性,其效果比电池实效试验简便。     

算法设计技术在拓扑排序的运用

有向图的拓扑排序有着极为广泛的应用,文章探讨了用多种计算机算法设计技术实现拓扑排序的思想。并且结合实例,提出了回溯法、分支限界法、贪婪算法、动态规划等方法的具体解决思路及其排序过程。