Effect of tungsten addition on thermal conductivity of graphite/copper composites

Graphite/copper composites with high thermal conductivity were fabricated by tungsten addition, which formed a thin tungsten carbide layer at the interface. The microstructure and thermal conductivity of the composite material were studied. The results indicated that the insertion of tungsten carbide layer obviously suppressed spheroidization of copper coating on the graphite particles during the sintering process, and decreased the interfacial thermal resistance of the composites. Compared with the graphite/copper composites without tungsten, the thermal conductivity of the obtained composites was increased by 43.6%.     

空压机含油废水的特性及处理对策

介绍了空压机含油废水的性质，排放形式，排放量及国内对该废水的处理概况，同时重点介绍了一种处理该类废水的较好方法。     

Negative effects on family functioning from psychosocial treatments: A recommendation for expanded safety monitoring.

Whereas biomedical products are required to be tested for safety with respect to vulnerable organ systems, psychosocial treatments are not required to be tested for safety with respect to vulnerable social systems such as the family. This article provides some evidence for the need to document the potential negative effects of psychosocial treatments on family-level outcomes. Three randomized controlled trials are reviewed in which independent ratings or self-reports of family functioning were measured. Each of the 3 studies compared the efficacy of a family and a nonfamily treatment. Totally unexpectedly, the nonfamily treatment in each of the 3 trials demonstrated significant declines in family functioning. The authors suggest that psychosocial treatments with vulnerable populations have the potential to produce negative side effects on families. Therefore, it is important to conduct further research to determine whether safety studies should be required for psychosocial treatments. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Why older adults make more immediate treatment decisions about cancer than younger adults.

Literature relevant to medical decision making was reviewed, and a model was outlined for testing. Two studies examined whether older adults make more immediate decisions than younger adults about treatments for prostate or breast cancer in authentic scenarios. Findings clearly showed that older adults were more likely to make immediate decisions than younger adults. The research is important because it not only demonstrates the consistency of this age-related effect across disease domains, gender, ethnic groups, and prevalent education levels but begins to investigate a model to explain the effect. Major reasons for the effect focus on treatment knowledge, interest and engagement, and cognitive resources. Treatment knowledge, general cancer knowledge, interest, and cognitive resources relate to different ways of processing treatment information and preferences for immediate versus delayed decision making. Adults with high knowledge of treatments on a reliable test tended to make immediate treatment decisions, which supports the knowledge explanation. Adults with more cognitive resources and more interest tended to delay their treatment decisions. Little support was found for a cohort explanation for the relationship between age and preference for immediate medical decision making. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Smoothing the trail for dissemination of evidence-based practices for youth: Flexibility within fidelity.

The role and implementation of evidence-based practice and empirically supported treatments has been hotly contested among researchers and practitioners. Using examples of and from various empirically supported treatments the authors offer suggestions for smoothing the pathway for dissemination of evidence-based practice with children and adolescents. The authors underscore that mediational analyses, treatment process studies, and the continued creation of flexible treatment manuals are important components of successful dissemination. Flexibility within fidelity is proposed as the preferred perspective that eases the transition and dissemination of empirically supported treatments from research clinics to service clinics. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Influence of post-annealing temperature on the properties exhibited by ITO, IZO and GZO thin films

In this work we present a study on the effect of annealing temperatures on the structural, morphological, electrical and optical characteristics of gallium doped zinc oxide (GZO), indium zinc oxide (IZO) and indium-tin-oxide (ITO) films. GZO and IZO films were deposited at room temperature by r.f. magnetron sputtering, whereas the ITO films were commercial ones purchased from Balzers. All films were annealed at temperatures of 250 and 500 °C in open air for 1 h. The GZO and ITO films were polycrystalline. The amorphous structure of as-deposited IZO films becomes crystalline on high temperature annealing (500 °C). The sheet resistivity increased with increase in annealing temperature. GZO films showed an increase of 6 orders of magnitude. The optical transmittance and band gap of as-deposited films varied with annealing. The highest transmittance (over 95 %) and maximum band gap (3.93 eV) have been obtained for ITO films.     

船闸液压启闭机常见故障处理

文章分析船闸液压启闭机的常见故障,提出了相应的解决措施。     

The effect of alkaline and silane treatments on mechanical properties and breakage of sisal fibers and poly(lactic acid)/sisal fiber composites

The main goals of this work were to study the effect of different chemical treatments on sisal fiber bundles tensile properties as well as on tensile properties of composites based on poly(lactic acid) (PLA) matrix and sisal fibers. For this purpose, sisal fibers were treated with different chemical treatments. After treating sisal fibers the tensile strength values decreased respect to untreated fiber ones, especially when the combination of NaOH + silane treatment was used. Taking into account fiber tensile properties and fiber/PLA adhesion values, composites based on silane treated fibers would show the highest tensile strength value. However, composites based on alkali treated and NaOH + silane treated fibers showed the highest tensile strength values. Finally, experimental tensile strength values of composites were compared with those values obtained using micromechanical models.     

生态浮床的净水作用与实施方法及发展前景探讨

本文从作为"五水共治"首要任务的"治污水"出发,结合嘉兴河道特点,叙述了"生态浮床"的净水作用与实施方法,提出了应提高水生无土栽培技术,引导"生态浮床"从单一的净水及景观功能向水生果蔬开发方向发展,促使人们自愿养护管理"浮床"、乐于收割水生植物,从而拓展"生态浮床"发展前景的观点。