非煤矿山安全信息管理系统的开发

阐述了安全信息在矿山安全管理中的重要性，对比了传统和现代的安全信息管理模式，结合某非煤矿山开发了矿山安全信息管理系统软件。该软件包括信息录入、查询统计、数据报表和数据字典等模块，满足了矿山安全信息的需要。     

合成橡胶生产废水处理技术

分析了合成橡胶生产废水的水质特性，综述了混凝沉降、混凝气浮、生物处理、电解絮凝、吸附和反渗透等方法在橡胶废水处理方面的应用。     

冲裁模的间隙调整方法

此文根据冲裁模生产实际需要,综合阐述了凸凹模间隙的调整方法。     

洞庭湖区湿地生态系统存在的问题及其对策研究

洞庭湖是我国最大的淡水湖泊湿地景观生态系统之一,湿地资源丰富.由于泥沙淤积,洞庭湖区调蓄容积减少、洪水位不断抬升、江湖关系改变.在加重湖区的防洪负担、造成严重的洪涝灾害的同时,也降低了湖泊水体对各种污染物的稀释自净能力和水环境承载能力,导致湖泊湿地生态系统严重退化.本文分析了洞庭湖区湿地生态系统的功能,找出了导致洞庭湖区湿地生态系统退化的原因,并针对原因提出了一系列对策,以期恢复其原有功能.     

Irreversible fouling during multicycle microfiltration of wastewater effluent

This study focused on irreversible fouling during microfiltration of primary and secondary effluents from municipal wastewater treatment plants. Flow resistances were calculated from the sum of clean membrane resistances, resultant cake layer resistances, and consequent irreversible fouling resistances. Results from a dead-end cell experimental system showed that the accumulated cake resistance was dominating for microfiltration of primary/secondary effluents. Suspended solids in the primary and secondary effluents had a similar compressibility index, n, with a value of approximately 0.5, indicating that they were moderately compressible particles. The value of irreversible resistance is dependent on the intensity of membrane cleaning; however, for a given membrane cleaning strategy, this value steadily increased and reached a maximum after approximately 6 cycles of filtration and cleaning. This study provided an explanation for the significant drop of throughput flux in the early application of membrane processes, and a plateau flux approached correspondingly.     

基于MODIS植被指数的浑善达克沙地植被物候变化

基于近20a MODIS的2种植被指数数据，利用Logistic曲线曲率极值法和动态阈值法，对浑善达克沙地植被物候进行了提取，分析其时空变化，并利用研究结果数据，分析植被物候对高程和气象因子的响应.结果表明，2000~2019年间研究区的植被物候呈微弱波动趋势，浑善达克沙地植被返青期（SOS）主要集中在110~140d，枯黄期（EOS）主要集中在250~280d，整体呈微弱推迟趋向（0.28d/a），生长季长度（LOS）主要集中在120~170d，整体呈微弱延长趋向（0.23d/a）.在空间分布上，占研究区51.51%的区域植被SOS呈提前趋势；占研究区67.02%的区域植被EOS呈提前趋势，并且占研究区32.98%的区域植被EOS呈推迟趋势.占研究区62.71%的区域植被LOS呈延长趋势.在海拔900~1500m区间，随着海拔升高，SOS显著推迟，EOS不显著提前，LOS显著缩短.前一年11、12月和当年1、2、4月降水量对SOS有提前作用.6、7、8、9月份气温和降水都对EOS推迟有明显的作用.总的来说，浑善达克沙地植被物候与气候因子的相应规律比较复杂，表现出季节性的差别及地形的差异性.     

反胶束体系中漆酶催化愈创木酚的研究

采用4种不同属性类型的表面活性剂(CTAB,Tween-80, AOT以及鼠李糖脂)构建反胶束体系,以木质素模式物愈创木酚为底物,研究了漆酶在反胶束环境中催化愈创木酚的特性,通过对不同反胶束环境中漆酶酶活的对比,确定在4种反胶束体系中,适合酶解反应的最佳表面活性剂浓度和对应的最佳含水率w0.分别为:CTAB浓度20mmol/L,w0=20;Tween 80浓度50mmol/L,w0=25;AOT浓度30mmol/L,w0=10;鼠李糖脂浓度10mmol/L,w0=30.并考察了表面活性剂类型属性对愈创木酚在反胶束体系中酶解行为的影响和底物动力学.结果表明,最佳表面活性剂浓度以及对应的最适含水率条件下,阴离子表面活性剂AOT和鼠李糖脂的反胶束体系中愈创木酚底物的催化效果较好,鼠李糖脂反胶束体系中底物的催化率最高,反应6h后分别比 CTAB、Tween-80以及AOT反胶束体系中的转化率高44.12%、34.6%、29.43%.     

Development of highly active coated monolith SCR catalyst with strong abrasion resistance for low-temperature application

Monolith SCR catalysts coated with V₂O₅-WO₃/TiO₂ were prepared by varying binder and coating thickness. Comparing with a monolith extruded with 100% V₂O₅-WO₃/TiO₂ powder, a coated monolith with a catalyst-coating layer of 260 μm in thickness exhibited the similar initial NO_x reduction activity at 250°C. After 4 h abrasion (attrition) in an air stream containing 300 g·m⁻³ fine sands (50–100 μm) at a superficial gas velocity of 10 m·s⁻¹, the catalyst still has the activity as a 100% molded monolith does in a 24-h activity test and it retains about 92% of its initial activity at 250°C. Estimation of the equivalent durable hours at a fly ash concentration of 1.0 g·m⁻³ in flue gas and a gas velocity of 5 m·s⁻¹ demonstrated that this coated monolith catalyst is capable of resisting abrasion for 13 months without losing more than 8% of its initial activity. The result suggests the great potential of the coated monolith for application to de-NO_x of flue gases with low fly ash concentrations from, such as glass and ceramics manufacturing processes.