若干脱毛体系下的协同作用

介绍了制革工业脱毛技术的发展历程与脱毛机理,分析总结了现有的若干脱毛技术,并对它们进行了比较,尤其探讨了若干脱毛体系下的协同作用,最后展望了未来脱毛技术的发展趋势。     

紫外光固化掺铕(Eu~(3 ))聚氨酯膜的制备与性能

:本文制备了掺铕的紫外光固化聚醚型聚氨酯膜 ,研究了光固化时间和铕浓度对膜的荧光性能影响 ,用扫描电镜及热重分析仪测定其均匀性和热稳定性。发现开始时膜的荧光强度随固化时间增加而增强 ,其后随固化时间的延长而减弱 ,初步探讨了其影响机制     

大连葡萄汁抗氧化活性测定及误差分析

报道了利用邻苯三酚自氧化法对大连本地葡萄汁抗自由基活性的测定。通过实验研究选定检测紫外吸收波长。测试不同进样量下葡萄汁抗自由基氧化活性，结果的误差分析表明，适当的进样量可以保证测试灵敏度．降低测试偏差。活性测试结果表明，大连地区的葡萄汁具有良好的抗自由基氧化活性，适宜于功能性食品的开发。     

一种基于折叠计数器重新播种的确定自测试方案

提出了一种基于扫描自测试的确定与混合模式新方案,这种方案依赖于一个新型的模式生成器,它主要配备一个可编程的约翰逊计数器,称之为折叠计数器。这种新技术首先使用一个小的线性反馈移位寄存器（LFSR）,生成伪随机测试模式测试容易测试的故障,并且获得一个硬故障测试立方集T;其次采用经典的输入精简技术,集合T的测试立方宽度可以被压缩;最终为了能够找出合理的小数目折叠计数器种子,来生成这个确定的测试立方集T,给出了其理论背景和实用算法。试验结果表明,这个所建议的方案与先前所公布的基于线性反馈移位寄存器和约翰逊计数器的重新播种方法相比,具有非常出色的结果。因此它提供了一种有效的、弹性的基于扫描的自测试解。     

VOCs在活性炭纤维上吸附性能的研究

采用吸附法去除室内挥发性有机污染物VOCs,以活性炭纤维(ACF)作为吸附剂,用苯、甲苯作为VOCs的代表物,对影响活性炭纤维吸附性能的入口气体浓度、气体混合、物化性质、填充密度等因素进行了探讨.实验结果表明,初始浓度大则穿透时间短;甲苯比苯更易被吸附;苯和甲苯混合吸附时,吸附能力强的甲苯有置换吸附能力弱的苯的现象发生;填充密度对穿透时间与饱和时间有影响,密度大利于吸附.     

Electroless Ni-Co-P Coating of Cenospheres Using Ag(NH_3)_2~+ Activator

FLY ASH CENOSPHERES are primarily a by-productin power generation plants.Research is in progress toeffectively use this by-product to produce new usableand profitable materials as they pose major disposaland environmental problems.Fly ash cenospheres areunique,property stable,non-toxic,non-metallic hollowmicro-particles.Due to the unique hollow structure andphysical mechanics properties,Cu^Ag and other metalsare often coated on cenospheres to produce lightweightmetal matrix composites,w…     

Research on Strategic Cooperation Between China Post and Telecoms

1IntroductionFacing the rapid development of social economy andscience technology China Post needs wide cooperation a-mong industries to gain competitive advantage and de-velopment space , which appeals the leading-edge tele-comindustry to become its partner .In some fields Chi-na Post and the Telecoms have launched business coop-eration which stays onlowlevel ,so for China Post it isurgent to establish relationship to the Telecoms onstrategiclevel presently,which will build win-winsitua-ti…     

STUDY ON BIOLEACHING OF PRIMARY CHALCOPYRITE ORE WITH THERMOACIDOPHILIC ARCHAE

1. Introduction There have been two difficulties encountered with the leaching of low-grade primary chalcopyrite oresusingmesophile culture-thiobacillusferrooxidans(Tf) and thiobacillusthiooxidans(Tt), and so on[1-3].The first is the poor leaching effect and the second is the resultant increase in temperature during the middle and the later phase ofheap-leachingperiod, which is unfavorable for the growth and the culture of Tf and Tt. Being widely used for mineral leaching at present, Tf and …