Stretchable Gold Tracks on Flat Polydimethylsiloxane (PDMS) Rubber Substrate

A process to fabricate stretchable gold tracks on silicone rubber substrates is studied by XPS, static water contact angle measurement, AFM, and SEM. The process involves several steps: removing uncured oligomers by hexane Soxhlet extraction; pre-stretching the substrate; activating the strained silicone surface by an oxygen plasma treatment; coating the strained substrate with 5 nm titanium and 80 nm gold layers; and finally releasing the sample. The plasma treatment creates a thin brittle silica-like layer that temporarily increases the substrate's surface energy. Indeed, the plasma treatment is followed by a hydrophobic recovery. As a consequence, the delay between plasma treatment and metal deposition has to be reduced as much as possible. The silica-like layer can be nicely observed after release. The entire process allows us to obtain stretchable metallized samples that remain conductive even after an excessive deformation leading to electrical failure.     

稀散金属镓锗在选冶回收过程中的富集行为分析

凡口铅锌矿稀散金属镓锗主要是以类质同像形式存在于闪锌矿中，如何有效地综合回收镓锗是凡口矿建矿以来研究的主要课题之一。针对凡口矿综合回收稀散金属镓锗的历史、现状与进展，重点研究了镓锗在选矿回收和湿法冶炼过程中的富集行为及走向，为开发镓锗综合回收新技术提供理论指导，从而提高企业经济效益。     

油气吸收回收系统的研究及工业应用——(Ⅱ)工业试验及效果分析

在油气吸收回收系统中型试验的基础上，开发了常温常压吸收法工业化油气回收系统，并进行了工业应用。结果表明，该油气回收系统平均回收率可达95．13％，每年可回收汽油529t；装车期间装车口周围环境大气中总烃浓度平均降低98．06％。企业通过实施油气回收系统，节能及经济效益明显，且很好地改善了装车场所的作业环境，克服了油气排放带来的安全隐患。     

中铝山西分公司供水系统的节能措施

本简要介绍了中铝山西分公司供水系统中采取的节能措施和取得的经济效益。     

Temporal and spatial aspects of an environmental stimulus influence the dynamics of behavioral regulation of the Aplysia siphon-withdrawal response.

Exposure to turbulence, an environmental stimulus, produces behavioral adaptation in the Aplysia siphon-withdrawal response (SWR). The authors show that the duration and spatial extent of turbulence influence adaptation recovery. In terms of duration, recovery in whole animals and reduced preparations (tail, siphon, and CNS) was more rapid after longer exposures to turbulence (10 min) than after briefer exposures (10 s-5 min). In terms of spatial extent, recovery in reduced preparations was more rapid after diffuse turbulence (tail and siphon together) compared with focal turbulence (siphon alone). Furthermore, spatial extent and duration interact: Duration regulates recovery only when turbulence is diffuse. Results suggest that SWR adaptation reflects a composite of cellular processes, including short-term synaptic enhancement in L30 inhibitory interneurons. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

联合循环余热锅炉螺旋鳍片管烟气放热系数研究

东南大学建造了1座IGCC余热锅炉鳍片管受热面流动和传热热态试验装置,并先后在其上进行了2个不同螺旋鳍片管组的传热特性研究,通过分析比较实测的烟气侧对流放热系数与无量纲准则式计算的结果,得出了完全热模拟公式更为准确的结论。     

汽车空调制冷系统中应用R407C的分析

本文对混合工质R407C与R12的物理和热力性质进行了比较分析，并针对汽车空调制冷系统的特点，对两种工质在变工况下进行了制冷系统的理论循环分析，阐明了在汽车空调制冷系统中使用R407C的可行性。     

多功能复合化学剂在蒸汽吞吐中的应用

辽河油田稠油热采以蒸汽吞吐开采为主,随着注汽轮次的不断增加、生产过程中各种工艺措施的不断介入,油藏受热水及其它侵入介质的影响,综合含水逐步上升,油层近井地带污染日益严重,直接影响了采收率,限制了稠油的高效开发.从油藏地质条件变化和伤害机理入手,开发研制出注蒸汽化学辅助技术--多功能复合化学剂.室内试验和现场应用表明,该技术能有效降低原油粘度、疏通油层、降低油水界面张力、改善稠油流动性、增加油层能量、提高采收率,从根本上改善稠油热采效果.     

Biosorption of heavy metals by Saccharomyces cerevisiae: Effects of nutrient conditions

Studies took place to investigate the effects of different nutrient conditions on the biosorption ability and selectivity of heavy metals by Saccharomyces cerevisiae. After having grown in media supplemented with additional glucose, ammonium, phosphate or cysteine, the yeast was exposed to an equimolar solution of lead, cadmium, zinc and copper. Lead removal from a mixed solution was significantly higher than that of copper, followed by zinc and cadmium. Generally, yeasts from cysteine-rich media showed greatest sorption capacity whereas phosphate addition influenced zinc selectivity. In addition, glucose, fructose and sucrose as carbon sources were examined. Cultures grown in glucose had a better uptake than those cultivated with fructose at an incubation time of 30 min.     

本钢烧结矿冷却及其余热回收的试验研究

从烧结矿冷却并回收其余热的角度出发，介绍了利用烧结机尾落矿空间，采用喷吹空气装置对烧结矿进行冷却的小型模拟试验，从测出的结果来看，有可能成为一种新的烧结矿冷却方式。