GJB151A/152A—1997亟待修订

从复杂电磁环境客观要求、标准化要求、军民用技术融合、标准自身存在不合规范问题等4个方面论述GJB151A/152A—1997修订的必要性和紧迫性。明确提出军事电磁兼容概念,针对标准化发展趋势、我军电磁兼容特殊情况和标准本身等方面的问题,提出了修订GJB151A/152A—1997的建议。     

浅析江西农信中间业务之自助渠道对接

通过自助渠道为用户提供各类丰富的中间业务能够节省服务成本、延长服务时间、拓展业务网络、提高客户满意度,因而具有十分重要的意义。江西省农村信用社审时度势,推进金融产品创新,致力于将中间业务与自助渠道对接,以满足广大客户需求,提高业务收入和市场占有率。本文首先阐明银行发展自助渠道的重要意义,其次介绍江西省农村信用社提供的各类中间业务以及当前与自助渠道的对接状况,最后通过代收代付类中间业务举例说明对接的详细流程。     

八面河油田油井节能工作的实践与效果

节能降耗是提高企业经济效益,增强企业竞争力的重要措施。八面河油田针对稠油区块机采系统效率低、部分油井工况优化余地大、机采设备整体利用率低等能耗问题,提出了如下治理对策:1、在设备节能改造方面,推广低冲次稠油节能抽油机和节能永磁电机。2、在改善油井工况方面,合理油井沉没度,加强偏磨腐蚀治理,降低油井无效排液。3、结合区块特点,加大调整稀油区块及稠油区块与百米吨液耗电的平衡力度。     

聚硅氧烷改性醇酸树脂的研究

采用共缩聚方法合成了聚硅氧烷改性的醇酸树脂;探讨了反应温度、催化剂和原料配比对缩合反应的影响,测试了改性树脂的部分性能。     

Effect of surface roughness on the adhesion of electrolessly plated platinum to poly(ethylene terephthalate) films

Poly(ethylene terephthalate) films were treated with aqueous sodium hydroxide solutions of different concentrations for various times. The rate of weight loss increased with the addition of a swelling agent (methylene chloride) or a cationic surfactant. The surface roughness of the treated films was determined from atomic force microscopy (AFM) and pore diameter was obtained from scanning electron microscopy (SEM). In general, surface roughness was found to increase with increasing weight loss for the treated films. A maximum roughness was obtained for samples with a weight loss of approximately 15-20%, beyond which the roughness of the samples decreased. The addition of methylene chloride and surfactant resulted in an almost two-fold increase in the roughness for all treatment times investigated. The adhesion of electrolessly plated platinum film was dependent on the contact area produced by chemical treatment. Treatments producing smaller diameter pores of greater depth gave better adhesion.     

聚乳酸增韧改性研究

通过熔融共混法制备了通用注塑级聚乳酸(PLA)材料,研究了刚性粒子种类,增韧剂种类和协同增韧等对PLA力学性能的影响,同时通过控制扩链剂的添加量有效地对注塑级PLA的熔体流动速率(MFR)进行控制。结果表明:协同增韧剂对PLA有较好的增韧效果,冲击强度从3.5 kJ/m2提高到15 kJ/m2,是单一增韧剂的2.5倍。通过引入扩链剂,得到一系列不同MFR的注塑级PLA材料,满足不同的工业化产品需求。     

UV-Aging Resistance of Packaging Waste PE Modified Asphalts

The recycled packaging waste PE was adopted to modify the asphalt and the UV-aging resistance of the modified asphalt was studied through the UV-aging experiment. The results showed that the changing trends of softening point aging index, penetration aging index, elastic recovery aging index and viscosity aging index at 135°C of the modified and unmodified asphalt are similar. FTIR analysis and the microscopic structure of the asphalt indicated that there existed two kinds of reactions taking place in the aging process of packing waste PE modified asphalt, the oxidation of raw asphalt and the aging of the polymer.     

全日制专业型硕士培养方案的一些思考

本文以化工过程机械专业硕士研究生为例,针对目前我国全日制专业硕士培养过程中存在的一些问题,例如培养方案与学术硕士的“同质化”、课程学分设置不合理及实习教学考核管理的单一性等,综合分析了这些问题产生的根源,并在对国外专业硕士培养经验分析的基础上,提出了解决上述问题的具体建议和措施,以期对提高专业硕士实践能力和创新思维,完善和提高我国全日制专业硕士的培养机制有所帮助.     

Comparative Analysis of Energetic Properties of Ti6Al4V Titanium and EN-AW-2017A(PA6) Aluminum Alloy Surface Layers for an Adhesive Bonding Application

The purpose of this article is to present energetic properties of surface Ti6Al4V titanium as well as surface EN-AW-2017A(PA6) aluminum alloy layers. Values of surface free energy after selected mechanical operations and ozonation were compared. In addition, the influence of different values of ozone concentration on surface layer energetic activation was analyzed. Dispersive and polar components of surface free energy were of particular concern. Comparative evaluation of shearing strength of Ti6Al4V titanium and EN-AW-2017A(PA6) aluminum alloy single-lap adhesive bonded joints were presented. Results can be used as pro-ecological methods of titanium and aluminum alloys preparing for applications where adhesive phenomenon is important.     

DRYING TECHNOLOGY AND EQUIPMENT IN INDIA

India produces over 200 million tonnes of food grains annually. There is need of postproduction management system to match with the increasing production rate. Drying is the primary need of crop's postproduction system. Sun drying is a popular mode of crops drying in India. The use of mechanical dryers are almost nil at arm level. With ever-growing population, the food grain production will increase to meet the demand of people. However, the agriculture is taking the shape of industry. Therefore, quality maintenance of the food grain is the primary concern. Thus, the crop drying cannot be dependent on sun drying. A good amount of research and development have been carried out on drying technology during the last two decades. So far very little attention have been given on the development of high capacity dryers, which are presently needed. High capacity dryers are also needed in food processing, chemicals and other industries, which are at growing stage in India. Hence, in nut and shell, there is a big demand for high capacity mechanical dryers and advanced drying technology. This paper presents the status of drying equipment and technology in India and its perspectives in future. To overcome the problems of drying and dryer development, the measures taken by the Government have been also mentioned. Potential of drying equipment business in international and domestic market is also highlighted in this paper.