电泳沉积固体氧化物燃料电池关键参数研究综述（英文）

目的:电泳沉积是一种简单且具有成本效益的涂层技术。其出色的形态特征控制,适用于制造需要每个组件层都具有其独特属性的固体氧化物燃料电池。本文旨在综述电泳沉积的最新进展、制备稳定悬浮液所需的关键因素以及通过电泳沉积技术制造固体氧化物燃料电池所涉及的相关参数。创新点:1.分析了维持悬浮液稳定性的关键参数,包括粒径和固体载荷等胶体相关参数以及介电常数和电导率等悬浮介质相关参数。2.讨论了这些参数对粒子流动性、电动电位和电泳沉积技术于固体氧化物燃料电池应用的综合效应。方法:1.对以往的研究进行综述,并总结电泳沉积技术制造固体氧化物燃料电池组件层的发展(表1),包括稳定悬浮液的制备以及电泳沉积工艺关键参数的优化。结论:鉴于每个固体氧化物燃料电池组件层都涉及不同类型的材料,且每种材料都需要特定的参数来实现有效沉积,因此,为了获得各组件层所需要的性能,制备悬浮液配方的正确性和电泳沉积工艺的优化显得至关重要。     

Should I stay or should I switch? An analysis of transitions between modes of vocational education and training

How established is the horizontal permeability between modes of vocational education and training (VET) in Switzerland? Formally encouraged by the Swiss law on VET, horizontal permeability refers to transitions across VET modes, i.e. between dual and school-based VET. This paper first discusses why horizontal permeability is indeed relevant and then empirically examines the horizontal permeability of the Swiss VET system for a given occupation – commercial VET. The latter is the largest VET domain in Switzerland and, importantly, a domain in which school-based VET is well established. The empirical analysis uses panel data following a cohort for over 10 years in the Canton of Geneva. Results show that going from school-based to dual VET within commercial VET increases chances to earn a qualification, however students changing modes lose half a year in the process. These findings suggest that, at least in commercial VET, horizontal permeability is only partial.     

A three-phase examination of academic comparative optimism and perceived academic control

Early academic perceptions are critical to undergraduate students' success in college. This 3-phase study examined stability of and links between academic comparative optimism (ACO; positive expectations about future performance) and perceived academic control (PAC; sense of influence over academic outcomes) among 68 undergraduate students. ACO and PAC were assessed at the start, midway through, and at the end of a semester and a cross-lagged panel analysis tested which academic perception better predicted the other. We also examined early ACO and PAC as predictors of later achievement. Students' ACO and PAC were fairly stable throughout the semester. Regression analyses (controlling for course load, prior achievement, and prior ACO or PAC) indicated ACO predicted PAC more so than the reverse, suggesting students may boost their PAC via optimistic social comparisons. Early ACO predicted later performance. Implications for enhancing ACO and PAC early in the academic year are discussed.     

LibX: The Small but Mighty Button for E-Resource Discovery and Access

LibX is an open-source browser extension that pushes access to a library’s e-resources and services out to users wherever they are on the Internet (e.g., Amazon, Wikipedia). In Fall 2012, University of Connecticut (UConn) Libraries unveiled their instance of LibX along with homegrown user guides and instructional materials, as well as targeted marketing and promotion efforts. In this session, the presenters described the successes and challenges of UConn’s LibX implementation and promotion, as well as an analysis of LibX.     

The Relation Between Executive Functions,Fine Motor Skills,and Basic Numerical Skills and Their Relevance for Later Mathematics Achievement

Research Findings: This study examined the interrelations between fine motor skills, executive functions, and basic numerical skills in kindergarten as well as their predictive value for mathematics achievement in 2nd grade in a sample of 136 children. Structural equation modeling techniques were used to uncover the unique predictive value and mediation of 4 predictors. The results indicated that each of these factors made a unique contribution to the prediction of later mathematics achievement; when estimated simultaneously, basic numerical skills were the strongest predictor, which suggests that domain-specific factors have a greater impact on mathematics achievement than domain-general factors. A strong direct and indirect predictor was updating. Nevertheless, indirect effects of fine motor skills and an inhibition/switching factor indicated that domain-general skills have a direct impact on early domain-specific precursors and through them an indirect effect on mathematics achievement. Practice or Policy: These findings suggest that the relationship between motor skills, executive functions, and mathematical skills is more complex in its nature. Therefore, to achieve the best outcome, all skills should be promoted if a child has difficulties with mathematics.     

Film History

David A. Cook, A History of Narrative Film (New York: W. W. Norton, 1981 -- $15.95 paper)

Gerald Mast, A Short History of the Movies, 3rd edition (Indianapolis: Bobbs-Merrill Educational Publishing, 1981 -- $12.95 paper, issued in hardcover by University of Chicago Press for $20.00)

A. R. Fulton, Motion Pictures: The Development of an Art Revised Edition (Norman: The University of Oklahoma Press, 1981 -- $14.95 in hardcover)

Richard Koszarski (ed.), The Rivals of D. W. Griffith: Alternative Auteurs, 1913-18 (First published by the Walker Art Center in Minneapolis, now available from New York Zoetrope, 31 East Twelfth Street, New York City 10003 for $4.95 in paperback)

Anthony Slide and Edward Wagenkneckt, Fifty Great American Silent Films, 1912- 1920 (New York: Dover, 1980 -- $6.95 paper).

Peter Roffman and Jim Purdy, The Hollywood Social Problem Film: Madness, Despair and Politics from the Depression to the Fifties (Bloomington: Indiana University Press, 1981 -- $25.00 cloth/$12.95 paperback)

I. G. Edmonds and Reiko Mimura, Paramount Pictures and the People Who Made Them (San Diego: A. S. Barnes, 1980 -- $17.50 hardcover)     

Three- to four-year-olds' recognition that symbols have a stable meaning: pictures are understood before written words

In 4 experiments 120 three- to four-year-old nonreaders were asked the identity of a symbolic representation as it appeared with different objects. Consistent with Bialystok (2000), many children judged the identity of written words to vary according to the object with which they appeared but few made such errors with recognizable pictures. Children also made few errors when the symbols were unrecognizable pictures. In Experiments 2 to 4 this pattern of responses was preserved in conditions that made it unlikely or impossible for children to answer correctly by taking the symbol to refer to one of the objects with which it appeared. Instead, correct answers required children to appreciate that the symbol had a generic, abstract meaning.