Application of honey-bee mating optimization on state estimation of a power distribution system including distributed generators

We present a new approach based on honey-bee mating optimization to estimate the state variables in distribution networks including distributed generators. The proposed method considers practical models of electrical equipments such as static var compensators, voltage regulators, and under-load tap changer transformers, which have usually nonlinear and discrete characteristics. The feasibility of the proposed approach is demonstrated by comparison with the methods based on neural networks, ant colony optimization, and genetic algorithms for two test systems, a network with 34-bus radial test feeders and a realistic 80-bus 20 kV network.     

新时代西部大开发背景下职业教育思政教学方法内容初探

在中共中央国务院关于新时代推进西部大开发形成新格局的指导意见下,思政教学需要围绕西部地区区域特色,民族文化差异,产业结构等特点,发挥意识形态导向作用,制定符合国家政策发展需要的教学内容。对此,如何培养学生关心西部发展,进而能够发挥技能优势建设西部,是思政教学中存在的重难点。文章将围绕新时代西部大开发中需要深化的知识点以及如何将新时代西部大开发政策融入思政教学各环节进行探讨。     

Bond graph models of structured parameter uncertainties

Taking into account uncertainties in model parameter values is a crucial point for studying robustness in modeling and in control. This paper proposes to construct in a systematic and graphical procedure two forms of the linear state equation usually found in the literature for dealing with the robustness problem in the case of structured uncertainties on parameters. It is shown how to model uncertainties in a bond graph approach, in the case of additive or multiplicative parametric variations.     

保险机制介入国家助学贷款管理的探讨

国家助学贷款是我国政府为资助高等院校经济困难学生,顺利完成学业而建立的一项资助政策。这项政策已经资助了数百万学子完成学业。然而在过去的几年中,助学贷款的实施产生了许多如贷款拖欠率高、银行惜贷等问题,国家助学贷款还远远不能满足广大贫困生群体的需求。而将保险机制引入国家助学贷款管理,可以充分发挥保险的社会管理功能,从而实现国家助学贷款的顺利实施。     

新形势下加强高校国有资产管理的探讨

随着经济的发展和教育体制改革的不断深入，国家投入到高校的资产和高校利用自身优势形成的各类资产已颇具规模。为了加强国有资产管理，维护国有资产安全与完整，防止国有资产流失，本文就目前高校国有资产管理存在的问题和解决对策进行探讨。     

虢季子白盘铭文及似赋之铭考论

本文借助对虢季子自盘铭文似赋之因的考察。鸟瞰铭、赋、颂诸文体之间的融通衍变。     

语用策略对词汇学习的促进作用

提供了一个成功的英语词汇学习语用策略培训模式。通过定性和定量相结合的方法说明了语用策略培训能促进词汇学习,有利于培养学习者元认知策略和优化学习者情感状态。     

浅析战国楚漆器的纹饰

漆器艺术是一门比汉字更为古老的传统艺术文化。战国时期漆器在中国漆器史上是个大发展和极其繁荣的时代。战国时期的漆器以楚国的最为著名。楚漆器更是一种艺术形式和精神内涵、应用与艺术趣味的完美结合。本文从楚漆器所产生的特殊的社会自然环境和楚风浓郁的人文环境入手,从漆器的主要纹饰及其发生机制、器物造型、装饰手法、色彩的运用等方面展开,深入而全面地阐释楚漆器的纹饰的形成的美学意蕴。     

Digital redesign tracker for cascaded analog systems with state saturation and external loads

This paper presents a newly developed digital redesign control scheme with a weighted switching strategy and output-reference tracking, for a cascaded analog system with state saturation and external loads. The proposed method improves the generally poor transition response and output deviation caused by state-saturation constraint and external loads. It replaces an existing or theoretically well-designed analog controller with state saturation, by a digital controller with almost identical performance.     

语文学习境界论

语文学习的境界有语象境界、物象境界、情象境界、意象境界和心象境界之分,多年来,语文学习的探讨与实践一直停留在语言形式的层面,静态的语言分析代替了动态的言语感受。我们的语文学习活动停留在力学的阶段,如果能在透彻地研究语文学习境界的基础上,把它作为语文教学的一块基石,把拓展它作为核心任务,语文教学质量低下的状况很可能改观。