Assessing the Impact of Engineering Undergraduate Work Experience: Factoring in Pre‐work Academic Performance

This paper examines how undergraduate work experiences affect engineering graduates' post‐graduation starting salary, their cumulative grade point average upon graduation, and their likelihood of receiving a job offer prior to graduation. This study contributes to the field of undergraduate work experiences uniquely by taking into account academic performance prior to work experience, including the exact number of work experiences, and examining how gender interacts with work experience to affect the measured outcomes. The results show that more experience results in a higher post‐graduation starting salary and an increased likelihood of a job offer prior to graduation. Increases in cumulative GPA upon graduation were only marginal. Furthermore, undergraduate work experience affected female and male students as well as students from different majors similarly.     

Analysis and Convenient Formulas for Elasto-Plastic Contacts of Nominally Flat Surfaces: Average Gap,Contact Area Ratio,and Plastically Deformed Volume

Interaction of nominally flat engineering surfaces that leads to a large contact area exists in many mechanical systems. Considering periodic similarity of surface geometry, a numerical three-dimensional elasto-plastic contact model can be used to simulate the contact behaviors of two nominally flat surfaces with the assistance of the continuous convolution and Fourier transform (CC-FT) algorithm. This model utilizes the analytical frequency response functions (FRF) of elastic/plastic responses of materials and provides contact performance results, including the average surface gap, the contact area ratio, and the volume of plastically deformed material, which may be defined as performance variables. Following the digital filtration technology, rough surfaces can be numerically generated with specified autocorrelation length and the first four orders of statistical moments. A group of contact simulations are conducted with various working conditions. The effects of topographic and material properties on the contact behaviors are discussed. With a multi-variables regression method, empirical formulas are developed for the performance variables as functions of surface statistical characteristics, material properties, a hardening parameter, and the applied load in terms of pressure.     

We need research on what constitutes good journal papers—and good editing—not guesswork on how to improve manuscriptsp.

Comments that M. Boor's (1986) suggestions to improve articles published in professional journals are unsubstantiated guesses and urges Boor to research his ideas. An example illustrates how Boor's guesses are contradicted by actual data. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

ISSN exercise & sport nutrition review: research & recommendations

Sports nutrition is a constantly evolving field with hundreds of research papers published annually. For this reason, keeping up to date with the literature is often difficult. This paper is a five year update of the sports nutrition review article published as the lead paper to launch the JISSN in 2004 and presents a well-referenced overview of the current state of the science related to how to optimize training and athletic performance through nutrition. More specifically, this paper provides an overview of: 1.) The definitional category of ergogenic aids and dietary supplements; 2.) How dietary supplements are legally regulated; 3.) How to evaluate the scientific merit of nutritional supplements; 4.) General nutritional strategies to optimize performance and enhance recovery; and, 5.) An overview of our current understanding of the ergogenic value of nutrition and dietary supplementation in regards to weight gain, weight loss, and performance enhancement. Our hope is that ISSN members and individuals interested in sports nutrition find this review useful in their daily practice and consultation with their clients.     

敏捷夹具CAD系统组成与自动构形设计方法研究

介绍了敏捷夹具系统组成,阐述了敏捷夹具的层次表示结构,提出了计算机辅助敏捷夹具自动构形可行的研究方法。     

敏捷企业（下）

上半部分全面介绍了敏捷企业的有关概念和企业开展敏捷化工程的有关问题。从企业外部到企业内部，对影响企业敏捷性的因素做了比较详细的分析。给出了一个供美国工业界实施敏捷化工物关键因素优优表，并对中国企业如何利用目前的机遇，通过建立全国一致的商务交换标准和技术体系来国际大合作的问题提出了具体的建议。下半部分从国工程的概念出发，着重描述了ＲＲＳ的概念，并通过实例进一步阐述了ＲＲＳ的１０条设计准则。     

Longitudinal patterns of risk for depression in dementia caregivers: Objective and subjective primary stress as predictors.

The present study examined how patterns of risk for depression over 1 year in 188 dementia caregivers (consistently asymptomatic, n ?=?88; consistently symptomatic, n ?=?40; changing risk, n ?=?60) could be predicted by objective (behavior problems of the relative) and subjective (role captivity and overload) primary stress. Results reveal that all primary stressors differentiated caregivers who remained at low levels of symptomatology over the course of 1 year from those who were at risk for experiencing a depressive disorder. In addition, caregivers' subjective experience of role captivity predicted the chronicity of risk. Findings extend prior caregiving research on patterns of depressive symptomatology by highlighting the relationship between subjective primary stressors and stability and change in caregivers' mental health. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

将电阻式触摸屏用于人／机接口

触摸屏被有效应用于多种信息设备中，如个人教字助理（PDA）以及用于仪表与控制应用领域的通用指示器等。从触摸屏获取信息，井将这些信息传辅至德处理器是一项复杂的难题。本文将介绍电阻式触摸屏的基本工作原理，以及如何高效地将这些模拟辅入信息转换为可用的教字信息，井将解决诸如建立时间、噪声过滤以及速度权衡等问题。