Synchrotron Radiation Lithography and MEMS Technique at NSRL

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Earned readiness management for scheduling,monitoring and evaluating the development of complex product systems

How should the development of a complex product system (CPS) be managed in a manner that focuses on process milestones, which is responsive to changes in technology and requirements; based on maturity measures; and applied in an interactive manner, in addition to facilitating timely feedback? This is considered to be an important question in project management. Project management tools and techniques have been inadequate for monitoring technology development in a CPS. If the technologies are not properly matured by a specific period of time, the progress of the project can be in detriment. To address this important gap, the objective of this study is to develop a new maturity-focused methodology for scheduling, monitoring and evaluating the development of a system. We present Earned Readiness Management (ERM) for system scheduling, monitoring and evaluation which was developed and validated using a case study. Future research on ERM is also discussed in this paper.     

热 作 模 具 钢 的 硬 韧 性 因 子

 根据热作模具钢的服役条件，基于均匀设计试验方法，设计了6种不同成分的热作模具钢，同时设计了对应的热处理工艺。测定了这6种钢的室温冲击韧性和二次回火后的硬度，提出了硬韧性因子(HT)，并利用二次型逐步回归分析方法得到了硬韧性因子与化学成分及热处理工艺之间的关系。     

Are SSATS and GPA enough? A theory-based approach to predicting academic success in secondary school.

Two studies were carried out to predict academic success in the highly competitive environment of a private preparatory school, Choate Rosemary Hall. The 1st study focused on the question of whether there are indicators beyond middle school grade-point average (GPA) and standardized test scores that might enhance the validity of measures for predicting success of students attending Choate. The results indicated the importance of taking into account aspects of self-regulated learning (SRL), such as academic self-efficacy, academic motivation, academic locus of control, and measures of the WICS (Wisdom, Intelligence, Creativity Synthesized) theoretical framework. Both sets of SRL and WICS indicators demonstrated incremental validity in predicting success at Choate. The 2nd study preliminarily evaluated the value of including indicators of aspects of the SRL and the WICS theoretical framework into the Choate admission process. The results of this study examined the utility of using quantified indicators other than middle-school GPA and standardized test scores for making admission decisions. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

制样方法对IF钢纳米压入测试结果的影响

 对3种不同方法制备的IF钢试样进行了纳米压入表征,分析了制样方法对IF钢中铁素体纳米压入测试结果的影响。结果表明,制样方法对铁素体杨氏模量平均值影响不大,但对硬度平均值影响显著,机械抛光和机械抛光+化学侵蚀状态铁素体的硬度均高于机械抛光+电解抛光状态的铁素体。这主要是因为机械抛光对试样表面造成了明显的加工硬化层,而化学侵蚀处理不能完全去除硬化层,只有电解抛光才能起到有效消除硬化层的作用。机械抛光+电解抛光处理更有利于IF钢的纳米压入表征。     

Fe C N金属熔体作用浓度计算模型

 实验在MoSi2电阻炉内用饱和浓度法测试了Fe C N体系氮的浓度和活度,并根据含化合物的金属熔体结构的共存理论模型,推导了Fe C N金属熔体作用浓度计算模型。实验测得1 485 ℃碳饱和的Fe C N熔体中在氮分压01 MPa时氮的溶解度为0006 5%,并且计算的作用浓度与相应的实测活度相符合,从而证明所得模型可以反映Fe C N金属熔体的结构本质,由模型得出金属熔体高碳含量有利于脱氮。     

含小孔铁磁平板单向拉伸的漏磁场和应力分布

 研究了含小孔铁磁平板单向拉伸时应力集中状况与漏磁场分布的关系。测量了在不同拉应力作用条件下漏磁场分布的规律。对漏磁场的分布关系、漏磁场坐标变化率的分布规律,与理论上应力、应力坐标变化率的分布关系进行了比较和分析,发现存在很有应用价值和理论价值的内在规律,可为铁磁试件应力集中程度的磁性方法检测提供借鉴作用。     

基于液压振动的结晶器非正弦振动

 基于宝钢板坯连铸的实测数据,对液压振动装置下结晶器非正弦振动模型相关特性进行了测试和分析。探讨了不同偏斜角度下非正弦振动波形的特点及振动装置驱动力的变化趋势,同时对拉速-振频反向控制模型下,正弦与非正弦振动方式的负滑脱等参数计算结果进行了分析,并对结晶器摩擦力的实测结果进行了讨论。结果表明,结晶器非正弦振动进一步优化了工艺参数,比传统的正弦振动更适合高速板坯连铸生产。