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21.
对天津及其滨海新区生态城市水利建设进行了分析。研究了在淡水资源极度匮乏的条件下,有效开发利用非常规水资源的必要性、重要性和现实性。认为天津市对水资源应遵循节水、治污、高效配置,妥善处理生活、生产、生态之间的关系,力求平衡调配。供水水源应是多元的,增加非常规水资源(污水、海/咸水、雨/洪水)的利用,同时增加可用地下水,外调来水等,逐步进入可持续发展配置。 相似文献
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Lopez Frederick G.; Fons-Scheyd Alia; Morúa Wendy; Chaliman Rebecca 《Canadian Metallurgical Quarterly》2006,53(4):543
This study examined the nature and impact of dyadic perfectionism over a 3-month interval within a sample of 116 college students who were currently involved in an intimate heterosexual relationship. Dyadic perfectionism scores were stable and correlated as expected with scores on concurrent measures of adult attachment orientations and relationship satisfaction. Logistic regression analyses revealed that, controlling for initial commitment status and adult attachment orientations, Time 1 dyadic perfectionism scores significantly and uniquely predicted relationship continuity 3 months later. Lastly, controlling for social desirability, relationship commitment status, and Time 1 adult attachment orientation scores, Time 1 dyadic perfectionism scores also uniquely predicted Time 2 relationship distress. Findings provide additional evidence that dyadic perfectionism is a risk factor for relationship dysfunction. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Bakermans-Kranenburg M. J.; van Uzendoorn M. H.; Bokhorst C. L.; Schuengel C. 《Canadian Metallurgical Quarterly》2004,18(3):545
In this first behavior genetic study on infant-father attachment, we estimated genetic and environmental influences on infant-father attachment behaviors and on temperamental dependency, both assessed with the Attachment Q-Sort (AQS; B. E.Vaughn & E. Waters, 1990; E. Waters, 1995). Mothers of mono- and dizygotic twins (N = 56 pairs) sorted the AQS with a focus on the infant's behaviors in the presence of the father. Genetic modeling showed that attachment was largely explained by shared environmental (59%) and unique environmental (41%) factors. For dependency, genetic factors explained 66% of the variance, and unique environmental factors including measurement error explained 34%. Attachment to father appears to be, to a significant degree, a function of the environment that twins share. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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This article outlines an approach to treatment of sexually abused children with dissociative symptoms. Dissociated self-states are seen as competing interpersonal approaches to handling the many emotional sequela of abuse, including anger, fear, and regressive needs. Parents' responses to their sexually abused children, complicated by guilt and their own histories of trauma, can promote dissociative coping in the children as they have difficulty processing their own real feelings of anger, fear, and responsibility. Children and parents may alternatively take victimizer, victim, and rescuer roles, thus mutually reinforcing a dissociative style of coping with these events. This article illustrates how sensitivity to these family dynamics, along with a problem-solving approach to the child's symptoms, can treat dissociative psychopathology in these children. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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面向对象的管理信息系统分析与设计 总被引:4,自引:0,他引:4
本文对面向对象方法(OO)应用于MIS系统开发中的诸多问题进行了较详尽的讨论,提出了OO对象在管理应用领域存在管理生命周期(MLC)的新思想,并将该思想应用到面向对象的MIS系统分析与设计中,取得了较好的效果。 相似文献
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随着交换技术的飞速发展,程控交换软件的规模越来越大,改动也越来越频繁,如何使代码对数据的改动具有相对的稳定性成为程控软件设计的一个首要问题。本文以CCS7(7号公共信道信令)为例,从对象模型、动态模型、功能模型3个方面阐述了OO(面向对象)方法在CCS7软件设计中的应用。这一方法,也可应用于程控软件的设计。 相似文献
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Faa‐Jeng Lin Jonq‐Chin Hwang Kuang‐Hsiung Tan Zong‐Han Lu Yung‐Ruei Chang 《Asian journal of control》2012,14(3):768-783
An intelligent control for a stand‐alone doubly‐fed induction generator (DFIG) system using a proportional‐integral‐derivative neural network (PIDNN) is proposed in this study. This system can be applied as a stand‐alone power supply system or as the emergency power system when the electricity grid fails for all sub‐synchronous, synchronous, and super‐synchronous conditions. The rotor side converter is controlled using field‐oriented control to produce 3‐phase stator voltages with constant magnitude and frequency at different rotor speeds. Moreover, the grid side converter, which is also controlled using field‐oriented control, is primarily implemented to maintain the magnitude of the DC‐link voltage. Furthermore, the intelligent PIDNN controller is proposed for both the rotor and grid side converters to improve the transient and steady‐state responses of the DFIG system for different operating conditions. Both the network structure and online learning algorithm are introduced in detail. Finally, the feasibility of the proposed control scheme is verified through experimentation. Copyright © 2011 John Wiley and Sons Asia Pte Ltd and Chinese Automatic Control Society 相似文献
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