黄土类土渗透溶滤变形机制及影响因素

通过对河南省黄土类土渗透溶滤变形机理的研究 ,阐明黄土类土渗透溶滤变形与土中易溶盐含量等因素的关系。黄土类土溶滤变形实质上是由于环境水对土中易溶盐淋滤而产生的变形。     

Flow of Newtonian and power law liquids in tube bundles

In this work, the annular (tangential) flow of Newtonian and non‐Newtonian fluids in tube bundles has been studied experimentally. Extensive pressure drop data has been obtained embracing wide ranges of the Reynolds number (13–6600) and for two test modules of different geometrical arrangements, but of similar overall void fraction. Preliminary experiments suggest that the pressure drop is mainly determined by the overall void fraction of the bundle and is relatively insensitive to the detailed geometrical configuration of the bundle. A simple predictive correlation has been developed which reconciles the present results for Newtonian and power law fluids with acceptable levels of reliability.     

Review of Canadian mental health law and policy.

Reviews the book, Canadian Mental Health Law and Policy by John E. Gray, Margaret A. Shone, and Peter F. Liddle (2000). The authors of this book have produced a multidisciplinary text that succinctly summarizes the main points of Canadian mental health laws and the variability across provinces and territories in these laws and in their typical interpretation and application. This book offers a concise guide to the laws dealing with key issues such as involuntary hospital admission, authorization of psychiatric treatment, and treatment refusal. Although not always an easy read for those unfamiliar with legal terms and writing, the book is geared to a wide audience that includes legal and policy specialists, mental health professionals, and advocates for the mentally ill. These authors are to be congratulated for their efforts to disseminate and explain information on Canadian mental health law and to promote a more humane and scientifically grounded set of legal standards and interpretations that are pertinent to the disposition and treatment of Canadian citizens with severe mental disorders. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Solution of an open problem on pseudo-Archimedean t-norms

An open problem on pseudo-Archimedean t-norms, recently posed by B. De Baets and R. Mesiar [B. De Baets, R. Mesiar, Triangular norms on product lattices, Fuzzy Sets and Systems 104 (1) (1999) 61-75], is discussed.     

Influence of the cyclic plastic zone size on the propagation of the fatigue crack in case of 12NC6 steel

Under cyclic loading, the plasticized zone becomes complicated; it contains in particular a second plasticized zone, resulting from the local compression which occurs at the time of the closing of the crack to each cycle. The two plastic zones, monotonous (r_m) and cyclic (r_c), are proportional to (K_max/R_e)² et (ΔK/R_e)², respectively. The objective of this work is to study the evolution of the fatigue crack grown rate (FCGR) and the influence of the plastic zone size (r_c), which represents the seat of the residual stresses, on this evolution in the case of 12NC6 steel. Generally, the plastic zone size increases with the crack advance. The FCGR can be correlated with the energy absorptive in these plastic zones.     

Fretting wear of a TiN PVD coating under variable relative humidity conditions—development of a ‘composite’ wear law

Fretting is defined as a small oscillatory displacement between two contacting bodies. The interface is damaged by debris generation and its ejection from the contact area. The application of hard coatings is an established solution to protect against fretting wear. For this study a TiN hard coating manufactured by a PVD method was selected, and tested against a smooth polycrystalline alumina ball. A fretting test programme was carried out at a frequency of 5 Hz, 100 N normal load, 100 μm displacement amplitude and at five values of relative humidity: 10, 30, 50, 70 and 90% at a temperature of 296 K. The intensity of the wear process is shown to be significantly dependent on the environmental conditions. A dissipated energy approach was employed in this study to quantify the wear rates of the hard coating. The approach gives stable prediction of wear kinetics under constant medium relative humidity. An increase of relative humidity is shown to promote the formation of hydrated structures at the interface and modify the third body rheology. This phenomenon was characterized by the evolution of wear kinetics associated with a significant variation of the corresponding energy wear coefficient. Hence, a ‘composite’ wear law, integrating the energy wear coefficient as a function of relative humidity, is introduced. It permits a prediction of wear under variable relative humidity conditions from 10 to 90% within a single fretting test. The stability of this approach is demonstrated by comparing various variable relative humidity sequences.     

小浪底水利枢纽库坝区主要环境工程地质问题分析

根据现场资料 ,对小浪底水利枢纽库坝区主要环境工程地质问题发育的地质环境、形成机理、变形破坏特征、可能造成的灾害程度等进行分析 .结果表明 ,随着库水位的逐渐升高 ,水库蓄水引起的近坝库岸稳定、库坝区渗漏、水库诱发地震及水库淤积等环境工程地质问题已开始孕育和发展 ,有的问题已经出现 .     

探求理想的城市居住模式

本文简略叙述了不同历史时期、不同社会发展阶段的不同居住模式，进而提出了符合我国国情、具有我国消费特色的当今理想的城市居住模式。     

A novel perspective on the formation of the solid electrolyte interphase on the graphite electrode for lithium-ion batteries

In this paper, we describe how the mechanism of formation of a protective film [the solid electrolyte interphase (or interface) (SEI)] on a graphite electrode for Li-ion batteries was investigated from the novel perspective of precipitation of the final decomposition products that arise from the reduction of a nonaqueous electrolyte solution in contact with the graphite electrode. Within the framework of this new perspective, we can elegantly account for the compositional and structural differences between the basal-plane and edge-plane SEIs and for the origins of the multi-layer structure and the parabolic growth law of the SEIs on both the edge-plane and basal-plane surfaces of the graphite electrode.     

氨碱法废清液析盐规律的计算研究(Ⅱ)——等密度线

文章计算了废清液蒸发过程中液相组成及密度，在证实计算方法可靠的情况下，对青岛碱厂废清液蒸发过程进行了预测，给出了预测结果，同时计算补充了２０℃Ｎａ＋，Ｃａ∥Ｃｌ－－Ｈ２Ｏ体系的相图数据及等密度线，举例说明了等密度线的应用。