Quantification of the Atmospheric Corrosion of 304 and 2205 Stainless Steels Using Electrochemical Probes Based on Thevenin Electrochemical Equivalent Circuit Model

Stainless steel(SS) is one of the most widely used engineering materials in marine engineering. However, its corrosion in the marine atmospheric environment due to the high concentration of Cl~- is a problem. The SS corrosion is a threat to the development and security of marine industry; therefore, evaluating the corrosion resistance of SSs is necessary. In this work, atmospheric corrosion detection probes based on a symmetrical electrode system were used to study the corrosion behaviors of 304 SS and 2205 duplex stainless steel(DSS) in a simulated marine atmosphere. A theoretical model for electrochemical noise(EN) data analysis based on the Thevenin electrochemical equivalent circuit(EEC) model was established. The relationship between the EN characteristic parameters and the corrosion rate was obtained. The Thevenin EEC model analysis showed that the relationship between the noise resistance( R_n), the noise impedance [ R_(sn)(f)], and the impedance modulus(| Z( f)|) was R_n≈ R_(sn)=■. Thus, R_n and R_(sn) can be used as indicators for quantitative corrosion evaluation. The results of EN detection for the 304 SS and 2205 DSS showed that in a simulated marine atmospheric environment, the passive fi lms on the two SSs were relatively intact at the initial exposure stage, and their dissolution rates were slow. The corrosion resistance of the 2205 DSS was higher than that of the 304 SS. With the deposition of Cl~- on the SS surface, pitting was initiated and the dissolution rate increased. The pitting initiation process on the SS surface was random, and part of the active pores could be repassivated.     

中美陪审制度比较研究－－兼驳“陪审团移植论”

陪审制度在美国的运作是成功的，而在我国的司法实践中陪审制度运作的实效却是甚微的，这导致部分学提出在我国陪审制度的改革中必须勇于移植美国的陪审团制度。由于我国人民陪审制度和美国陪审团制度存在很大差异，我们不能移植美国陪审团制度。在完善我国人民陪审制度的历程中，我们应从我国国情出发，客观评价和合理吸收美国陪审团制度的成功之处，逐步显示我国人民陪审制度在追求审判公正司法民主中的强大生命力。     

从当前我国会计环境看会计国际化

随着经济全球化的发展，会计国际化已是大势所趋、潮流所向。面对会计国际化不可逆转的趋势与其背后隐藏的巨大国家利益的矛盾，我们究竟应如何抉择？本文从会计系统必须与其运行的环境相适应这一基本观点出发，结合我国当前会计环境加以分析，提出了自己的一些观点。     

建立“五位一体”管理体系 提高实验室安全保障力度

为提高实验教学和科研的保障力度,逐步建立和完善了制度、责任、检查、教育、隐患处理"五位一体"实验室安全管理体系,并形成了长效机制,规范实验室安全管理,使实验室安全管理工作效率进一步提高。     

论唐宋词的娱乐功能

作为当时的流行歌曲，唐宋词表现出诸多异于传统诗文的“另类”特质和社会功能，其中，娱乐功能便是唐宋词所具有的特殊社会功能之一。唐宋词的娱乐功能具有全民化和重感官享乐的特点，它的形成和发展，不仅表现出宋人对文艺本质特征的重新认识和再发掘，也在一定程度上体现了人性的觉醒和人类社会的进步。     

Goethe’s Conception of “Experiment as Mediator” and Implications for Practical Work in School Science

There has been growing criticism over the aims, methods, and contents of practical work in school science, particularly concerning their tendency to oversimplify the scientific practice with focus on the hypothesis-testing function of experiments. In this article, we offer a reading of Johann Wolfgang von Goethe’s scientific writings—particularly his works on color as an exquisite articulation of his ideas about experimentation—through the lens of practical school science. While avoiding the hasty conclusions made from isolated experiments and observations, Goethe sought in his experiments the interconnection among diverse natural phenomena and rejected the dualistic epistemology about the relation of humans and nature. Based on a close examination of his color theory and its underlying epistemology, we suggest three potential contributions that Goethe’s conception of scientific experimentation can make to practical work in school science.     

功利道德和情感道德的劝善——18世纪英国感伤主义小说的文学伦理学批评

在18世纪经济迅猛发展的英国,对物质的过度追求影响到社会伦理道德体系的构建,感伤主义思潮随之出现。感伤主义文学注重人物内心情感的刻画,作家理查生和斯特恩深受当时诸多哲学家、伦理学家道德伦理观念的影响,在其代表作中或树立伦理道德典范,或剖析传递伦理道德观,劝善读者,成就了现代小说的经典之作。     

幼儿教师流动研究现状素描及评析

有关幼儿教师流动的研究起源较早,作者群以高校教师为主;研究领域存在"同名不同区"现象,幼儿教师流动与幼儿教师流失领域覆盖上存在交叉;多数文献研究目的以原因和对策为主线,体现了较强的问题意识;研究对象较为多样化,以农村和民办幼儿园教师为主;整体研究方法偏重质性,没有提及任何研究方法的文献所占比例较高,此现象需要审慎对待和改进。虽然影响幼儿教师流动的因素众多,但以物质因素影响最为突出;研究建议多为理想的"应然",学术界还需加强实证研究。     

GIS在交通领域中的应用探讨

介绍GIS的基本概念,对GIS在交通领域应用的优势进行分析,并根据GIS和交通工程近年的发展趋势,介绍GIS在交通规划、道路设计、交通管理、交通设施管理、道路交通安全管理、与ITS联合应用共六个方面的应用研究。     

基于Web模式可移植性训练系统的设计与实现

三层结构模式在Web应用系统中广泛应用，但也存在不足之处：系统对网络环境完全依赖，网络资源利用不平衡．因此，从一个基于Web模式的训练教学系统的设计和实现过程，对Web三层结构提出了调整改进措施，在设计中构建了具有一定逻辑功能的Web页面数据单元，从而实现数据的重用性和系统设计的可移植性，并有效地解决了Web三层结构系统的不足之处．