A real-time estimation and control scheme for induction motors based on sliding mode theory     

Oscar Barambones  Patxi Alkorta  Jose Maria Gonzalez de Durana 《Journal of The Franklin Institute》2014

In this paper a sliding mode position control for high-performance real-time applications of induction motors is developed. The design also incorporates a sliding mode rotor flux estimator in order to avoid the flux sensors. The proposed control scheme presents a low computational cost and therefore can be implemented easily in a real-time applications using a low cost Digital Signal Processor (DSP). The stability analysis of the observer and the controller, under parameter uncertainties and load torque disturbances, is provided using the Lyapunov stability theory. Finally simulated and experimental results show that the proposed controller with the proposed observer provides a good trajectory tracking and that this scheme is robust with respect to plant parameter variations and external load disturbances.  相似文献   

ARTICLES PUBLISHED IN SIX SCHOOL PSYCHOLOGY JOURNALS FROM 2005–2009: WHERE'S THE INTERVENTION RESEARCH?     

Victor Villarreal  Jorge E. Gonzalez  Anita S. McCormick  Amber Simek  Hyunhee Yoon 《Psychology in the schools》2013,50(5):500-519

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Report of the Findings Committee of the Association of Directors and Ministers of Religious Education     

Edmundo Gonzalez 《Religious education (Chicago, Ill.)》2013,108(4):313-314

The purpose of this column is to keep religious educators abreast of the relevant significant research in the general field of psychology. Its implications for methods and materials in religious eduction are clear. Religious educators may well take advantage of every new finding in scientific research.

Each abstract or group is preceded by an evaluation and interpretative comment, which aims to guide the reader in understanding the research reported.

All of these abstracts are from PSYCHOLOGICAL ABSTRACTS, and used by permission of that periodical. The abstract number is Volume 29, Number 5 October, 1955.  相似文献   

Effects of Intergenerational Interaction on Aging     

Carmen Requena Hernandez  Marta Zubiaur Gonzalez 《Educational gerontology》2013,39(4):292-305

The world population pyramid has changed shape. However, this does not mean that societies have changed their negative concept of old age. Our study proposes an intergenerational service-learning program with 179 university students and 101 slightly depressed elderly people. The results show that the elderly people who interacted improved in well-being. Those interacting with the young people tended to lower their stereotyped perception of themselves, while the others tended to augment it. The young people tended to moderate their stereotypes of the elderly with or without interaction.  相似文献   

Teacher education in practice: reconciling practices and theories in the United States context     

Elizabeth B. Kozleski  Taucia Gonzalez  Laura Atkinson  Cynthia Mruczek  Lisa Lacy 《欧洲特需教育杂志》2013,28(2):156-172

This paper reports findings from an 18-month qualitative study that followed the experiences of nine teacher residents, their site professors, site coordinators, clinical teachers and principals in three professional learning schools. The study examined the tensions that emerged as teacher preparation theory intersected with the context-bound realities of daily life in schools and the political constraints that diminish possibilities for inclusive education. The paper addresses implications for teacher preparation programmes by reporting how teacher residents negotiated their understanding of and commitment for inclusive education through three themes: (a) critical reflection as an emergent practice, (b) whose learning, and (c) the trouble with behaviour. Interpreting these themes has implications for programmatic designs in teacher preparation.  相似文献   

Sex and Power on Daytime Television     

Molefi Kete Asante  M. Christina Gonzalez 《Journal of American culture (Malden, Mass. : 2003)》1983,6(3):97-99

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Educational Reform and the University of Colombia     

Gilbert G. Gonzalez 《比较教育学》1981,17(2):229-246

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IV. DEVELOPMENTAL TRAJECTORIES OF CHILDREN'S AGGRESSIVE BEHAVIORS AFTER THE BIRTH OF A SIBLING     

Brenda L. Volling  Richard Gonzalez  Tianyi Yu  Wonjung Oh 《Monographs of the Society for Research in Child Development》2017,82(3):53-71

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VI. DEVELOPMENTAL TRAJECTORIES OF CHILDREN'S ANXIETY AND DEPRESSION AFTER THE BIRTH OF A SIBLING     

Elizabeth Thomason  Wonjung Oh  Brenda L. Volling  Richard Gonzalez  Tianyi Yu 《Monographs of the Society for Research in Child Development》2017,82(3):82-92

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Engaging New Faculty in the Scholarship of Teaching     

Lynn C. Koch  Lisa A. Holland  Daniel Price  G. Leticia Gonzalez  Pam Lieske  Alison Butler  Kathryn Wilson  Mary Louise Holly 《Innovative Higher Education》2002,27(2):83-94

This article describes how scholarly teaching projects were conceived, implemented, and evaluated by junior faculty from a variety of disciplines at a medium-sized midwestern university. The authors explore: considerations in designing scholarly teaching projects, methods used to evaluate teaching effectiveness, and outcomes of the teaching projects. Finally, two of the teaching projects illustrate how junior faculty with diverse courses, class sizes, and teaching concerns approached the task of improving their teaching.  相似文献