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Formation mechanism of ternary NiAl-Mo eutectic alloy under quenching condition
急冷条件下NiAl-Mo三元共晶合金的组织形成机制

Bian Wen-Hua,Dai Fu-Ping,Wang Wei-Li,Zhao Yu-Long,<br>,代富平,王伟丽,赵宇龙
物理学报 , 2013,
Abstract: 采用单辊急冷技术实现了NiAl-Mo三元两相共晶合金的快速凝固, 同时与常规条件下的凝固组织进行了对比研究. 实验发现, 单辊急冷的合金条带与常规条件的凝固样品均由B2结构的NiAl金属间化合物和bcc结构的Mo固溶体两相组成, 两相均具有(110)晶面优先生长的趋势, 并呈现出(110)NiAl//(110)Mo取向关系. 常规条件下得到的微观结构主要由规则的两相共晶组织组成, 形成了类似菊花状的共晶胞. 而单辊急冷条件下形成的组织结构主要是由近辊面的柱状晶区和近自由面的等轴晶区组成的凝固组织. 理论计算发现, 合金熔体的单辊辊速由10 m/s增大至50 m/s后, 其冷却速率从1.01×107 K/s逐渐增大到2.46×107 K/s, 冷却速率明显高于常规铸造过程, 因而形成了差别很大的凝固组织. 随着辊速(冷却速率)的增加, 合金条带的厚度从54.4 μm减小至22 μm, 近辊面柱状晶区的厚度所占比例也逐渐增大, 晶粒发生了明显细化.
二十四节气浅说

气象 , 1976, DOI: 10.7519/j.issn.1000-0526.1976.04.023
Abstract:
审计与审阅的比较
杨桂花,
财会月刊 , 2008,
Abstract: 本文根据中国注册会计师审计准则体系将注册会计师的业务分为签证业务和非签证业务的规定,就审计与审阅的目标、业务约定书、工作程序、对资产负债表期后事项的处理和结果报告进行了比较。【关键词】审计  审阅  程序 摇报告 摇比较  一、目标比较  财务报表审计的目标是注册会计师通过实施审计程序对财务报表是否按照适用的会计准则和相关会计制度的规定编制,财务报表是否在所有重大方面公允地反映被审计单位的财务状况、经营成果和现金流量来发表审计意见。  财务报表审阅的目标是注册会计师在实施审阅程序的基础上,说明是否注意到某些事项,以便对财务报表做出判断,它是否按照适用的会计准则和相关会计制度的规定编制,是否在所有重大方面公允地反映被审阅单位的财务状况、经营成果和现金流量。
我国非经常性损益项目修订评述
杨桂花,
财会月刊 , 2008,
Abstract: 随着信息使用者日益成熟、理性,他们不再仅仅局限于关注公司盈余金额的大小,而更关注公司盈余的持续性,因而也就有了经常性损益和非经常性损益的区分。本文拟就我国非经常性损益项目修订展开评述。  【关键词】经常性损益非经常性损益企业合并公允价值 我国对非经常性损益的定义先后做了四次修订,分别是:1999年证监会在《公开发行股票公司信息披露的内容与格式准则第2号——年度报告的内容与格式》中规定:非经常性损益是指公司正常经营损益之外的一次性或偶发性损益。2001年4月发布的《公开发行证券的公司信息披露规范问答第1号——非经常性损益》(本文简称为“2001年规定”)指出,非经常性损益是指公司发生的与生产经营无直接关系以及虽与生产经营相关,但其性质、金额或发生频率,影响了真实、公允地评价公司当期经营成果和获利能力的各项收入、支出,并列出了6项确定的非经常性损益项目和4项可能的非经常性损益项目。2004年1月对《公开发行证券的公司信息披露规范问答第1号——非经常性损益》进行了修订(本文简称为“2004年修订版”),指出非经常性损益是公司发生的与经营业务无直接关系,以及虽与经营业务相关,但由于其性质、金额或发生频率,影响了真实、公允地反映公司正常盈利能力的各项收益,并列举了14项确定的非经常性损益项目。2007年证监会结合现行会计准则中相关规定的变化对非经常性损益的定义做出了修订(本文简称为“2007年修订版”)。新修订的非经常性损益是指公司发生的与主营业务和其他经营业务无直接关系,以及虽与主营业务和其他经营业务相关,但由于该交易或事项的性质、金额和发生频率,影响了正常反映公司经营、盈利能力的各项交易、事项产生的损益,并列举了15项确定的非经常性损益项目。
On Chinese Sci-tech Journals'' Weak Points in Editorial Innovativeness
关于科技期刊编辑创新动力不足的思考

LIU CuiLing,BIAN Li,ZUO WenShu,<br>刘翠玲,,
中国科技期刊研究 , 2007,
Abstract: 科技期刊编辑只有发挥主观能动性,才能激发创新动力,提高期刊的学术质量,加速最新科研信息的传播,促进科研成果的转化。文章分析了科技期刊编辑存在创新动力不足的现象和导致创新动力不足的原因,提出了提高期刊编辑主观能动性和激发创新动力的对策。
A Novel Knowledge Based Non-Linear Filtering Method for Fingerprint Images
一类新的知识型指纹图像非线性滤波方法

Ni Lin,Bian Zhaoqi,Wang Wenyuan,<br>倪林,肇祺,
自动化学报 , 1997,
Abstract: This paper first described the multiscale edge representation of images in the wavelet transform domain, and also discussed the representations completeness and the stability of the corresponding reconstruction algorithm. Then using the multiscale maxima representation based on the wavelet transform, we proposed for fingerprint images a non linear filtering method which was constrained by several kinds of knowledge in the scale space. The experimental results show that this filtering method has more adaptive performance and can obtain satisfactory results.
Optimum Distribution of Industrical Water in Shenyang City and Analysis of Its Economic Benefit
沈阳市工业用水的优化分配及环境经济效益

Eian Maoxin,Xu Hongtao,<br>茂新,刘春英,,徐鸿涛
环境科学 , 1990,
Abstract: This paper describes the principles of linear programming applied in Shenyang City for optimum distribution of industrial water. From the viewpoint of water resources, the direction for adjusting industrial structure of the city is proposed. The authors have studied the calculating method of economic benefit for optimizing industrial water distribution. The results show environmental economic benefit is obvious according to calculation.
Nutrients of Urban Stromwater Runoff in Zhenjiang
镇江城市降雨径流营养盐污染特征研究

BIAN Bo,ZHU Wei,HUANG Feng,BIAN Xun-wen,<br>,朱伟,黄峰,卞勋
环境科学 , 2008,
Abstract: Urban stormwater pollution is recognized as one of the major causes of water quality deterioration in the receiving water bodies. Starting in May 2006, a study was conducted to characterize water quality from representative land uses types in Zhenjiang. By analyzing the varieties of suspended solids (SS) and nutrients, the results show that the 5-40 microm size class dominates in all the samples, and urban stormwater pollution mainly results from commercial area where concentrations of pollutants are so high that concentration of SS reaches 978 mg/L. Concentrations of pollutants in initial flush are very high, and they descend sharply along with the time to reach the stable stage. The main phases of pollutants discharge are dissolved nitrogens, particle phosphorus and SS. Analysis of correlation of SS and other pollutants finds that SS are the absorbed carrier of nutrients from urban stormwater runoff, and removal of SS is the effective way to control urban stormwater pollution in Zhenjiang.
Digital watermarking based on object
基于对象的图像数字水印

BIAN Yun,WEN Ting,HE Kun,ZHOU Ji-liu,<br> 赟, 婷,何 坤,周激流
计算机应用研究 , 2012,
Abstract: In order to overcome shortcomings of traditional watermarking algorithm, this paper presented a new watermarking algorithm which based on object. At first, it analyzed the depth information from the original image, then completed the extraction of ROI object according to the depth information, at last, embedded robust watermarking for protecting the image content integrity, and embedded semi fragile watermarking in the ROI object. Experimental results indicate that this algorithm is invisible and robust to common image attacking and could detect the tamper.
PROGRESS IN DYNAMICS OF IMPACT AND CONTACT OF MULTI-RIGID-BODY SYSTEMS
多刚体系统接触碰撞动力学研究进展

YAO Wenli,WANG Yuping,BIAN Li,ZHAO Zhen,<br>姚,王育平,,赵振
力学与实践 , 2007,
Abstract: The impact and contact dynamics is a hot topic in the field of dynamics of multi-rigid-body systems in recent years.The related methods are reviewed.The energy inconsistency due to Coulomb-type friction, Painlev(?)'s paradox and the restitution coefficient of impact are discussed in detail,together with progress made in those problems.The future research directions in this field is pointed out.
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