An improvement on the transient response of tracking for the sampled-data system based on an improved PD-type iterative learning control     

Fu-Ming Chen  Jason Sheng-Hong Tsai  Ying-Ting Liao  Shu-Mei Guo  Ming-Chung Ho  Fu-Zen Shaw  Leang-San Shieh 《Journal of The Franklin Institute》2014

An improvement on the transient response of tracking for the sampled-data system based on an improved PD-type iterative learning control (ILC) is proposed in this paper. The developed analog ILC method and the high-gain property tracker design methodology are first combined to significantly reduce learning epochs and overcome the initial condition shift problem and discontinuous reference input in the traditional ILC. Besides, the proposed ILC improves the transient response and decreases the rate of weighting matrices Q$Q$ to R$R$ under the traditional linear quadratic tracker design. First, the off-line observer/Kalman filter identification (OKID) is used to determine the appropriate (low-) order system parameters and state estimator for the physical system with unknown system equation, so that the model-based PD-type ILC can be implemented for practical applications. Then, to improve the transient response and decrease the control effort, the proportional difference type (PD-type) ILC algorithm is combined with the high-gain property linear quadratic tracker (LQT) design to construct the high performance tracker for the model-based sampled-data systems. Furthermore, the discrete-time version high performance tracker design for the unknown stochastic sampled-data system via the iterative learning control method is proposed in this paper based on the Euler method and the digital redesign approach. Finally, some examples are given for illustrating the effectiveness of the proposed method.  相似文献   

The Report of the National Commission on Excellence: Heeding the Messages of past Experience     

Joseph F. Rogus  Elizabeth Shaw 《Clearing house (Menasha, Wis.)》2013,86(2)

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Word and Image—Mixed Ability Poetry?     

Michael A. Shaw 《English in Education》1985,19(1):14-16

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Rob Summers     

Janet Cropper  Jean Shaw 《Health information and libraries journal》1991,8(3):189-189

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Museums and galleries     

Bernard Casey  Philip Taylor  Jeremy Eckstein  Dominic Moody  Adrienne Muir  Catherine Shaw 《Cultural Trends》1995,7(25):19-45

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Books and articles of academic interest     

Peter Shaw  Howard Dickman 《Academic Questions》1989,2(2):100-100

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Advancing Diversity in STEM     

Paul L. Hill  Rose A. Shaw  Jan R. Taylor  Brittan L. Hallar 《Innovative Higher Education》2011,36(1):19-27

Although progress has been made, greater efforts are needed to promote faculty diversity at the college and university levels, especially in STEM fields. Thus, it is important to elucidate best practices both for increasing awareness of diversity issues pertaining to higher education and for implementing change. This article focuses on the outcomes of a diversity workshop for college and university faculty hosted by the West Virginia Higher Education Policy Commission, Division of Science and Research. More specifically, it elucidates how participation in the workshop translated into practice at the faculty participants’ home institutions.  相似文献   

Three‐year results of the Friendly Schools whole‐of‐school intervention on children's bullying behaviour     

Donna Cross  Helen Monks  Marg Hall  Thérèse Shaw  Yolanda Pintabona  Erin Erceg  Greg Hamilton  Clare Roberts  Stacey Waters  Leanne Lester 《British Educational Research Journal》2011,37(1):105-129

A group randomized controlled trial tested the efficacy of the Friendly Schools program to reduce student bullying behaviour. This socio‐ecological intervention targeted the whole school, classroom, family, and individual students to reduce bullying behaviour. Self‐report data were collected in 29 schools over three years from a cohort of 1968 eight to nine‐year‐olds. Surveys measured frequency of being bullied, bullying others, telling if bullied and observing bullying. Results indicate that intervention students were significantly less likely to observe bullying at 12, 24 and 36 months and be bullied after 12 and 36 months, and significantly more likely to tell if bullied after 12 months than comparison students. No differences were found for self‐reported perpetration of bullying. The findings suggest whole‐of‐school programs that engage students in their different social contexts appear to reduce their experiences of being bullied and increase their likelihood of telling someone if they are bullied.  相似文献   

Designing biomimetic robots: iterative development of an integrated technology design curriculum     

Bernstein  Debra  Puttick  Gillian  Wendell  Kristen  Shaw  Fayette  Danahy  Ethan  Cassidy  Michael 《Educational technology research and development : ETR & D》2022,70(1):119-147

Educational technology research and development - In most middle schools, learning is segregated by discipline. Yet interdisciplinary approaches have been shown to cultivate creative thinking,...  相似文献   

Multiple Copies of Bestsellers in Public Libraries: How Much Is Enough?     

Michelle Gordon  Allison Haack  Rebecca Vernon  Tiffany Saulter  Debora Shaw 《Public Library Quarterly》2014,33(2):145-154

How do public libraries develop their collections of high-demand materials for the “I want it now” generation? Ten public libraries’ holdings of fiction and nonfiction bestseller titles were observed over a four-week period. The number of copies rose fairly consistently, with the five fiction titles having roughly about twice the number of copies as the five nonfiction titles. The ratio of holds to copies averaged 2.7:1 and ranged from 0.8:1 to 6.5:1. Demand for e-books was consistently higher than the number of copies available, averaging more than 4:1 across all libraries.  相似文献