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101.
102.
Given a process y with stationary increments and rational incremental spectral density Φ(s), we parametrize minimal state-space representations of dy. We consider the case when Φ(s) may have zeros on the imaginary axis including infinity and we analyze the zero structure of each state-space representation. 相似文献
103.
针对三参数应力一寿命模型,提出了广义P-S-N曲线参数估计的实现方法。该方法基于广义极大似然法原理,应用相关系数法和数学规划法分别求解均值曲线和均方差曲线参量,然后应用相关系数法求解概率曲线参量。通过对45铜成组法疲劳试验获得的洲数据的分析,验证了该实现方法的有效性。 相似文献
104.
We characterize finite dimensional realizability of discrete time nonlinear systems which have a Volterra series development with separable structure of the Volterra kernels. 相似文献
105.
Reviews the book, The newer therapies: A sourcebook by Lawrence Edwin Abt and Irving R. Stuart (1982). This volume seeks to present a representative sample of innovative psychotherapies through the writings of leading practitioners of the approaches. The 21 chapters are grouped into four sections: "Cognitive Therapies" (including a cognitive approach to hopelessness, meditation techniques, and ego-state therapy); "Therapy with Children" (including paraverbal therapy and theraplay); "Group Approaches" (including family, group, and network therapies); and "Adjuvant Therapies". The chapters generally provide a well-written and authoritative introduction to the therapy approach at hand. With concise delineations of the fundamental theoretical assumptions, illustrative and effective excerpts from therapy sessions, and select primary source references, the chapters are stimulating even to the sophisticated reader. With its well-written, wide-ranging, and stimulating content, this book is especially suited for use by graduate students, supervised groups, and the practicing clinician. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
106.
结合河北省节水农业发展的实际,提出了包括大力推广节水灌溉工程技术,着力研究推广调亏灌溉制度,调整作物结构,充分利用微咸水、雨水等内容的节水高效农业建设途径。并就保障节水高效农业建设提出了技术创新、机制创新和管理创新等措施。 相似文献
107.
Development of software product families relies heavily on the use of variability to manage the differences between products by delaying design decisions to later stages of the development and usage of the constructed software systems. Implementation of variability is not a trivial task, and is governed by a number of factors. In this paper, we describe the factors that are relevant in determining how to implement variability, and present a taxonomy of variability realization techniques. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
108.
Kazumi Horiguchi 《Asian journal of control》2002,4(3):284-300
Directional interpolation plays an important role in robust control, system realization and model reduction. Several solutions to various directional interpolation problems have been proposed. In this paper, we consider the directional interpolation problem in a general setting and present a statespace based new approach to solving the problem. The solution is simple, and its exposition is as self‐contained as possible. We describe all the (strictly) bounded real rational matrix functions that satisfy the directional interpolation requirements by means of linear fractional transformation. Moreover, we give a necessary and sufficient condition for the interpolating function to be unique and show that the unique interpolating function is an inner (a co‐inner). The main procedures used to generate the interpolating function consist of standard matrix operations consisting of easy numerical computations, so the present solution is significant from the numerical viewpoint as well as the analytical viewpoint. 相似文献
109.
A stochastic realization problem of a stationary stochastic process is re-visited, and a new stochastically balanced realization algorithm is derived in a Hilbert space generated by second-order stationary processes. The present algorithm computes a stochastically balanced realization by means of the singular value decomposition of a weighted block Hankel matrix derived by a “block LQ decomposition”. Extension to a stochastic subspace identification method explains how the proposed abstract algorithm is implemented in system identification. 相似文献
110.
Despite the universal and understandable distress associated with the death of a child from pediatric illness, do psychologists help surviving families in ways that match their need for assistance? Many families do not seek psychological help and cope adaptively with their loss. Indications for psychotherapy with bereaved families are based largely on experience with families who engage in treatment and who have greater distress. Other families may not receive sufficient services but are at risk for ongoing difficulties and unlikely to engage in treatment. Suggestions for intervention are made, with attention to the fit of therapeutic approaches with family needs. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献