Constitutive Relationship of IN718 Alloy for Thermoviscoplastic and Microstructure Evolution Coupled Analysis

The interaction between thermomechanical parameters and microstructure evolution is so intense that it must be considered during the finite element method (FEM) simulation of the hot plastic working process, for materials that are difficult to deform. Taking the microstructure evolution into account, a novel type of constitutive relationship has been put forward for the IN718 alloy. The microstructure evolution model was first established for the dominant microstructure evolution processes. Then the microstructure evolution models and the method to determine the local flow stress of the corresponding microstructure for current thermomechanical parameters and deformation history were presented. Once the local flow stresses of different structures and their volume contributions were defined, the apparent flow stress of the material could be determined as the weighted sum of the local flow stresses and volume contributions. To validate the proposed method, a thermoviscoplastics and microstructure evolution coupled analysis for a forging process of a critical IN718 disk forging was performed. The predicting results were in close agreement with the experimental data.     

Awards for distinguished professional contributions.

Recognizing the diversity of roles and activities in which many professional psychologists are engaged, beginning in 1979, Professional Awards have been presented to individual members of the American Psychological Association whose distinguished contributions have served to advance psychology as a profession in the areas of knowledge, professional practice, and public service. In 1991, recipients were as follows: for "Distinguished Professional Contributions to Knowledge," Joseph Matarazzo and Grant Dahlstrom; for "Distinguished Professional Contributions to Applied Psychology as a Professional Practice," Stanley Graham; and for "Distinguished Professional Contributions to Public Service," José Szapocznik and Oliva Espin. For each winner a citation, biography, and selected bibliography of their works are presented. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Contribution of particle shape and surface roughness on the flotation behavior of low-ash coking coal

In this study, the influence of particle shape and surface roughness on the flotation behavior of +0.25–0.5 mm low-ash coking coal particles was investigated. The low-ash coking coal particles with different particle shape and surface roughness obtained through grinding or crushing were measured, calculated, and analyzed using an optical microscope associated with Image J software. The flotation kinetics tests were conducted in a 0.75 L XFD flotation cell with the presence of frother and in the absence of collector in order to investigate the natural floatability of the low-ash coking coal particles. The flotation kinetics constant of low-ash coking coal particles was calculated through the first-order rate equation. The experimental results illustrated that the flotation kinetics constant increased with increasing the aspect ratio and roughness, while the particle owning high roundness and circularity value led to smaller flotation kinetics constant. Finally, the quantitative contributions of particle shape and roughness of low-ash coking coal particles on flotation performance were established.     

Award for Distinguished Contributions to Research in Public Policy: 1988.

This article acknowledges Sandra Scarr, the winner of the Award for Distinguished Contributions to Research in Public Policy. This award is conferred upon a psychologist who has made a distinguished empirical and/or theoretical contribution to research in public policy. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Awards for Distinguished Education and Training Contributions: 1987.

The Education and Training Board Awards for Distinguished Career Contributions to Education and Training in Psychology recognize psychologists who make traditional contributions to education and training in psychology; who provide innovations or who are involved in developmental phases of programs that influence education and training; who are engaged in important research on education or training, the development of effective materials for instruction, or the establishment of workshops, conferences, or networks of communication for education and training," who exhibit achievement and leadership in administration that facilitates education and training; or who are active in professional organizations that promote excellence. The 1987 recipients of the awards are Wilbert J. McKeachie and Florence L. Denmark. For each recipient, a citation, biography, and selected bibliography are provided. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

工业生产指数的发展前景

工业生产指数是以基期的平均生产水平为１００，来测算报告期生产水平的动态相对数。１９９７年国这统计局已颁布利用月度资料工业生产指数。用不变价格总产值计算工业发展速度的时代已不复存在了。在实际的统计操作中，可以根据指数的数值大小，通过基期来掌握报告水平，也可根据不同时期的指数，来掌握生产活动及其影响因素，但是，工业生产指数作为一种新生的指标体系，同样存在着优势与不足，需要不断完善。     

Infrastructure Finance: Aims,Attitudes and Approaches

There is an increasing awareness of the need to devise new methods of financing infrastructure. Two ways of decreasing reliance on public borrowing for infrastructure are by shifting public sector cost recovery from recurrent charges to capital levies and by making private interests directly responsible for providing and financing the service. Public sector pricing of infrastructure should aim to reflect long-run marginal cost; it should extend to cover external effects; and, where possible, its impact should accord with principles of social justice. The use of benefit assessment principles and developer contributions are two ways of achieving these objectives. There is undoubtedly also a role for private sector provision of some categories of infrastructure; but it is not as important as the development of a system of public sector cost recovery.     

Inclusionary zoning and affordable housing in Sydney

Focus in this paper is placed on the issue of inclusionary zoning and developer contributions to provide affordable housing in the City West and Green Square urban redevelopment projects. Both are ambitious inner city urban renewal projects which form key parts of the New South Wales government's urban consolidation policy and also seek to maintain a social mix through the provision of social (i.e. affordable) housing.     

Invited Introductory Remarks to the Special Issue.

Provides introductory remarks to the special issue of the Canadian Journal of Behavioral Science. The author notes that as the scientific discipline and profession that investigates and applies the principles of human behaviour and mental processes, psychology has much to contribute to the law. As scientists, psychologists can study the assumptions that the law makes to test whether such assumptions are supported by empirical evaluation. As practitioners, psychologists can apply the principles of psychology to help assess or modify an individual's behaviour and mental processes. While noting the important contributions Canadians have made to the field as researchers, clinicians and editors of key journals in the field, the author addesses areas that can benefit from further attention, including the need for ongoing thought about the definition of the field, and the need for further research and practice focus on areas of law that have heretofore either been neglected or ignored. In addition, he brings attention to the need for increased interdisciplinarity in our field and notes training needs. (PsycINFO Database Record (c) 2010 APA, all rights reserved)