经济系统机理及其对系统效益影响分析

依据马克思主义的生产力理论和邓小平同志关于“科学技术是第一生产力”的论述,指出了经济系统的机理及其动力学性质。并在此基础上提出了经济系统生产力和生产力做功的模型及生产力产出效率模型,且与此同时在经济理论上得出: (1)生产力要素所具有的生产力大小等于它在实际产出上的生产力与克服生产关系反作用的生产力之和; (2)投入生产系统的全部生产力做功等于其实际产出做功与克服生产关系反作用做的无用功之和; (3)生产力效率,以及相对生产力效率的概念。作者认为,这些结果对正确认识和分析我国经济发展中存在和出现的一些重大问题可能具有一定的指导意义。     

胶粘耐磨涂层的研制及其磨损机理分析

本文介绍了ＪＮＴ９０系列涂层的研制过程及计算机辅助涂层配方优化方法，分析了影响胶粘胶耐磨涂层耐磨性的主要因素，并通过扫描电镜对粘涂层的结构形貌，磨损机理进行了研究，提出了提高涂层性能折途径和见解。     

Potassium catalysis in the pyrolysis behaviour of short rotation willow coppice

Short rotation willow coppice (SRC) and a synthetic biomass, a mixture of the basic biomass components (cellulose, hemicellulose and lignin), have been investigated for the influence of potassium on their pyrolysis behaviours. The willow sample was pre-treated to remove salts and metals by hydrochloric acid, and this demineralised sample was impregnated with potassium. The same type of pre-treatment was applied to components of the synthetic biomass. Characterisation was performed using thermogravimetric analysis with measurement of products by means of Fourier transform infrared spectroscopy (TGA-FTIR) and pyrolysis-gas chromatography-mass spectrometry (PY-GC-MS). A comparison of product distributions and kinetics are reported. While the general features of decomposition of SRC are described well by an additive behaviour of the individual components, there are some differences in the magnitude of the influence of potassium, and on the products produced. For both SRC and the synthetic biomass, TGA traces indicate catalytic promotion of both of the two-stages of biomass decomposition, and potassium can lower the average apparent first-order activation energy for pyrolysis by up to 50 kJ/mol. For both SRC and synthetic biomass the yields and distribution of pyrolysis products have been influenced by the presence of the catalyst. Potassium catalysed pyrolysis increases the char yields markedly and this is more pronounced for synthetic biomass than SRC. Gas evolution profiles during pyrolysis show the same general features for both SRC and synthetic biomass. Relative methane yields increase during the char formation stage of pyrolysis of the potassium doped samples. The evolution profiles of acetic acid and formaldehyde change, and these products are seen in lower relative amounts for both the demineralised samples. A greater variation in pyrolysis products is observed from the treated SRC samples compared to the different synthetic biomass samples. Furthermore, substituted phenols from lignin pyrolysis are more dominant in the pyrolysis profiles of the synthetic biomass than of the SRC, implying that the extracted lignins used in the synthetic biomass yield a greater fraction of monomeric type species than the lignocellulosic cell wall material of SRC. For both types of samples, PY-GS-MS analyses show that potassium has a significant influence on cellulose decomposition markers, not just on the formation of levoglucosan, but also other species from the non-catalysed mechanism, such as 3,4-dihydroxy-3-cyclobutene-1,2-dione.     

Mechanism and control of water seepage of vertical feeding borehole for solid materials in backfilling coal mining

To solve the problem of water seepage of vertical feeding borehole for solid materials, we established the fluid-solid coupling dynamic model of groundwater flowing in rock mass adjacent to the vertical feeding borehole. Combining with the engineering geological conditions, we built a numeral model to study the influence rule of the aquifer hydraulic pressure and seepage location of feeding borehole on the amount of seepage with finite element numerical method. The results show that the nonlinear relationship is presented among the amount of seepage, the seepage location and aquifer hydraulic pressure. The higher the aquifer hydraulic pressure is, the closer the distance between seepage location and aquifer is, and the faster the harmful levels of aquifer will grow. In practice, we calculated the allowable seepage of feeding borehole by the optimum moisture content and natural moisture content of backfilling materials, and then determined the protection zone of feeding borehole, so the moisture content of backfilling materials can be controlled within the scope of optimum moisture content.     

“校村结对”在新农村建设中的作用及机制研究

"校村结对"是高校参与新农村建设的重要组织形式,能有效促进"生产发展、生活宽裕、乡风文明、村容整洁、管理民主"目标的实现。有关参与各方应创新"政府主导,农民主体,高校参与"三位一体新机制,拓展"校村结对"组织形式,健全考核激励机制,建立长效机制,构建内部组织体系,促进"校村结对"机制的不断完善和发展。     

Activation flotation and mechanism of lime-depressed pyrite with oxalic acid

Flotation tests,contact angle measurements,infrared spectrum analyses,X-ray analyses and computer simulation were carried out in order to study the activation mechanism of lime-depressed pyrite with ox...     

国有企业落实“三重一大”制度的再思考

"三重一大"制度是国有企业党风廉政建设的切入点。国有企业在落实"三重一大"制度中存在着对制度规定重要性的认识不够、制度过于原则化、可操作性不够等薄弱环节。要落实"三重一大"制度,就必须强化国有企业纪检监察部门组织协调意识;要以制约和规范权力为核心,改革和完善国有企业重大决策制度;要以建立和完善科学民主的干部选拔任用和管理监督机制为重点,改革和完善国有企业干部选拔任用制度;要以规范投资决策行为为立足点,改革和完善国有企业重大投资项目安排制度;要以严格审批、管理和监督为着力点,改革和完善国有企业大额度资金使用制度。     

浅谈带好职工队伍的途径

要想做好职工思想政治工作,提升队伍执行力,只有从单位职工队伍的实际情况出发,抓好"头",才能取得扎实效果。抓好"头",一是要抓好源头,梳理出容易产生矛盾的问题,从制度上公开化、民主化;二是要管好人头,就是做好一人一事的思想工作,划分责任区,明确责任,责任到人;三是要走近心头,就是提倡有情管理,着力推进"家"文化建设,创造和谐的工作、生活氛围;四是要树好领头,就是从抓骨干入手,确立先进分子的模范示范作用。     

关于深化惩防体系建设的实践与思考

坚持以保障企业发展为目标,以构建惩防体系为统领,在指导思想上准确把握"五性",在工作重点上突出增强"五力",在工作目标上着力建立"五制",同时,进一步创新工作理念,增强惩防体系建设的全局性;进一步创新工作方法,增强惩防体系建设的科学性,推进反腐倡廉工作整体发展。     

对构建安全工作信息预警机制的思考

安全连着社会和谐。从某种意义上讲,抓安全就是抓发展,促稳定。加强企业安全工作信息预警机制建设,有助于企业掌握安全生产主动权,打好排除安全隐患主动仗。要做好这一项工作,不仅需要领导重视,部门配合,员工参与,而且需要从制度层面对信息的收集、分析、整理等方面的工作加以规范,确保涉安问题早发现,早报告,早处理。