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1.
Discusses myths and assertions regarding the scientist-practitioner model. The author suggests that the myths associated with the model include: (1) a scientist-practitioner model program represents the midpoint on a continuum of programs that emphasize either research or practice, (2) the scientist-practitioner model has failed because many graduates enter practice rather than academic positions, and (3) the only valid measure of success of scientific training is number of publications. It is asserted that the scientist-practitioner model is fundamental to the growth of psychology. The author contends that the fundamental tenet to professional psychology graduate education is; education and training in professional psychology require training in the conduct of scientific research, clinical practice, and their integration. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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正On the afternoon of May 18,the inauguration announcement meeting for"WWW.BuyAL.com.cn"under the Shanghai Aluminum Trade Association was held ceremoniously at the Songjiang New Century Grand Hotel,Shanghai.Liu Fusheng,Director of the Shanghai Songjiang District Commission of Economy and information Technology,Xu Guotao,President of Shanghai Aluminum Trade Association,and Zhang Rong,Chairman and founder of"WWW.Buy AL.com.cn",General  相似文献   

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正《中国有色金属》、《世界有色金属》杂志荣获2017年度"中国百强报刊"战略决策、经营管理、科技进步的必备智库中国有色金属工业协会主管主办中国有色金属行业权威的传媒机构旗下主要的信息服务平台:《中国有色金属》杂志(半月刊,公开发行)《世界有色金属》杂志(半月刊,公开发行)《中国金属通报》杂志(月刊,公开发行)《有色新闻》网站、微博、微信、移动客户端《有色金属统计》杂志(月刊,内部资料)  相似文献   

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以草酸钇铕(Y2(C2O4)3:Eu3+)为前驱体,采用复合熔盐(NaCl+S+Na2CO3)协助焙烧法合成Y2O3:E.u3+红色荧光粉.利用XRD、SEM、光谱分析等测试和分析荧光粉粒径、颗粒形貌以及发光性能.主要考察复合熔盐配比、用量以及焙烧温度和时间对Y2O3:Eu3+荧光粉发光性能的影响.结果表明,NaCl在...  相似文献   

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《Acta Metallurgica》1986,34(3):415-424
Theory of diffraction from h.c.p. crystals undergoing martensitic transformation to the f.c.c. structure through a non-random insertion of deformation faults is developed. From a comparison of the theoretically predicted diffraction effects with those experimentally observed on single crystals of ZnS, it is shown that the thermally induced transformations in this material are growth controlled while the deformation induced transformation is nucleation controlled.  相似文献   

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《Acta Metallurgica》1986,34(3):405-413
A new approach based on diffraction evidence for the involvement of shear at the atomic level is proposed to elucidate the mechanism of the f.c.c. to h.c.p. martensitic transformation. This approach is based on the analysis of the intensity distribution along streaked reciprocal lattice rows observed on diffraction patterns recorded from partially transformed f.c.c. crystals. The relevant theory of diffraction from crystals undergoing f.c.c.-h.c.p. transformation by non-random insertion of deformation faults is developed. This approach, as distinct from the conventional microstructural approach, can be especially useful in situations where the transformation strains are self accommodating in nature, such that there is no observable surface relief effect.  相似文献   

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在武钢硅钢片厂的联合剪切机组中,使用了D.D.S.控制的下切式斜刃剪。剪切时,连续地供给带钢,由D.D.S.数字直流伺服系统控制,自动地剪切成所需长度。尽管D.D.S.剪切机是启动工作制的不连续剪切,但它具有飞剪的电控能力和高精度定尺公差的控制,而且结构又很简单。不仅适用于新设备的设计,尤其适用于旧设备的改造。  相似文献   

8.
王苹  谢虹 《钢铁技术》1999,(6):50-52
本文对国内外T.R.T装置的历史发展,技术现状和应用情况以及国内未来的市场前景作了综合介绍,并举例就该技术的适用性和经济性进行了比较系统的分析。  相似文献   

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自1978年以来一直在15~250t平炉上成功地进行着钢液面下的水平吹氧。熔池液面下吹氧也是能源最佳化炉的主要特征。 1982年春季在巴西Korf分公司资助下潘斯黑色冶金公司(C.S.P.)投产了一台25t E.O.F.(Energy Optimizing Furnace)试验装置,并于1982年8月在克尔(西德)介绍KR法时首次报道了它的结果。1982年12月以来在C.S.P.卓有成效地  相似文献   

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The ledge mode of misfit accommodation is extended to {111} f.c.c.∥{110} b.c.c. interfaces with the Kurdjumov-Sachs (KS) orientation relationship. As with the Nishiyama-Wassermann (NW) relationship the geometric quantities are uniquely related by the misfit ratio r of atomic diameters. A rigid lattice analysis shows that the driving forces for a KS orientation relationship are significantly larger than those for the NW-x and even more so than those for the NW-y relationships. The rigid analysis also predicts that the terrace width which satisfies the periodicity conditions for a stepped interface are well within the terrace widths which allow significant energy gains. The models developed for the NW analysis are modified for KS configurations and employed to sum energies for the terrace patches, tilt misfit dislocations and the riser interface energy. Comparing this energy with that of a planar interphase boundary comprised of only misfit compensating dislocations shows that a stepped interphase boundary is energetically favored at r values near and greater than rKS but less than rNW-y.  相似文献   

13.
《Acta Metallurgica Materialia》1994,42(10):3361-3370
Employing available experimental data for athermal f.c.c. → b.c.c. martensitic transformation in binary, ternary and multicomponent Fe-base alloys, a model is developed and tested for the critical driving force at the Ms temperature. Incorporating the theory of solid solution hardening, we describe the composition dependence of the athermal frictional work for martensitic interface motion governing the kinetics of barrierless heterogeneous nucleation. The available data suggests that the composition dependence of the athermal frictional work is of the same form as that for slip deformation. We have evaluated the athermal strengths of 14 alloying elements Al, C, Co, Cr, Cu, Mn, Mo, N, Nb, Ni, Si, Ti, V and W from the experimental data. Except for Al, Ni and Co, the athermal strengths of the common substitutional alloying elements are similar in magnitude, while the interstitial solutes C and N exert a stronger influence. Previously proposed superposition laws are used to account for the presence of multiple solutes having different athermal strengths. With an improved assessment of the magnetic parameters of alloy systems, the model predicts Ms temperatures within ±40 K for Ms > 300 K where thermal contributions to the frictional work can be neglected.  相似文献   

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汉语"V+Num+是+Num"构式具有特殊的句法特征,对于该构式的认知机制我们可以用舞台模型理论、空间映射理论作出解释.该构式的浮现意义是指最大限度(尽可能)地做某事,它表达了说话者积极进取而又无可奈何的复杂心态.  相似文献   

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The present article discusses the visibility of Nursing care through the use of a Nursing classification "International Classification of Nursing Practice, proposed by the International Council of Nurses (ICN). The usefulness of a specific classification is discussed and comparison with the medical classifications are reasoned. Examples of experimentation are brought for sustaining the utility of the ICNP in the clinical practice, in education, in the Nursing management and in politics. To have a common language world-wide sustains the development of the discipline and the empowerment of Nursing profession.  相似文献   

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三、D.D.S.电控系统 数字直流伺服(D.D.S.)系统是一个独立装置,它主要由程序控制系统、喂料系统和剪切系统等三部分组成,其方框图如下: 如图5所示,当机组具备自动剪切条件  相似文献   

18.
The boundary paradigm (K. Rayner, 1975) was used to determine the extent to which Chinese readers obtain information from the right of fixation during reading. As characters are the basic visual unit in written Chinese, they were used as targets in Experiment 1 to examine whether readers obtain preview information from character n + 1 and character n + 2. The results from Experiment 1 suggest they do. In Experiment 2, 2-character target words were used to determine whether readers obtain preview information from word n + 2 as well as word n + 1. Robust preview effects were obtained for word n + 1. There was also evidence from gaze duration (but not first fixation duration), suggesting preview effects for word n + 2. Moreover, there was evidence for parafoveal-on-foveal effects in Chinese reading in both experiments. Implications of these results for models of eye movement control are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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