关键词： Optimal Control   Stochastic Control   Electrochemical Systems   Lithium-ion Batteries   Plug-in Hybrid Electric Vehicles   Power Management   Thesis  

摘要： This dissertation combines electrochemistry-based battery models and optimal control theory to study power management in energy storage/conversion systems. This topic is motivated by the need to enhance the performance and longevity of battery electric systems. In particular, the rapid progress in battery material science and energy conversion presents a highly relevant opportunity to bridge the knowledge gap between electrochemistry and control. Ultimately, this dissertation elucidates the key physical phenomena in battery-powered systems which enable opportunities to improve battery performance and health through control. We address this topic in three phases. First we provide an overview of battery fundamentals and relevant degradation mechanisms. Then we develop mathematical models for the electrochemical battery phenomena, plug-in hybrid vehicle drivetrain dynamics, and stochastic drive cycle dynamics. A battery-in-the-loop experimental test system is fabricated to identify the electrochemical battery model. Second, we investigate the battery-health conscious power management problem for plug-in hybrid electric vehicles (PHEVs). This effort designs controllers to split engine and battery power to minimize both fuel/electricity consumption costs and battery state-of-health degradation. Mathematically, this problem is formulated as a stochastic dynamic program. The degradation phenomena considered include anode-side solid electrolyte interphase film growth and the "Ah-processed" model. This work is the first to utilize fundamental electrochemical battery models to optimize power management. The final phase proposes a novel battery pack management strategy which investigates the potential health advantages of allowing unequal yet controlled charge levels across batteries connected in parallel. Mathematically, this problem is formulated as a deterministic dynamic program. The optimal solutions reveal that capacity fade can be mitigated through controlled charge une

关键词： 企业   责任心   意识  

摘要： 随着经济的发展,人们的生活进一步富裕,各种思潮此起彼伏,享乐主义、自由主义等各种思潮不断地考验着员工。在新形势下,尽管大部分员工都能继承先辈们哪种"责任重于泰山"的优良传统,但仍然有一些人不能有效抵制住各种诱惑,出现事业心责任心不强的现象,贪恋享乐,无心工作,有的甚至出现责任事故,严重影响单位的正常工作和生活,给单位造成严重的损失。本文就此作出具体分析。

关键词： 教学改革   可编程控制器   实践能力   创新意识  

摘要： 以'边研究,边改革,边实践'的原则,对可编程控制器的教学改革进行深入分析和研究,并进行了大量的教学改革实践。本着'一个基础,两个核心'的指导思想,推进'三个模块'的教学改革,即以培养学生可编程控制器的基本应用能力为基础,以培养实践能力和创新意识为核心,改革教学内容、教学方法和师资队伍建设三个模块,激发学生学习热情,不断提高教学质量。

关键词： 成本控制   企业   企业管理   商人   代理商   制造商   意识  

摘要： 企业经营的首要目标是盈利,只有获取足够的利润,企业才能扩大再生产、持续发展,最终向着为股东创造价值、为社会创造价值这一根本目标迈进。获利的本质是差价,而差价是由营业收入减成本得到的。在竞争

关键词： 意识形态领导权   意识形态控制力   思想政治教育  

摘要： 相对于“意识形态领导权”而言，“意识形态控制力”体现的不是一个阶级的地位而是任务，它将促使一个阶级及其政党牢牢掌握意识形态领导权并贯穿于实践中。意识形态控制力的强化需要在一定的场域中经由一定的手段和途径来完成，而利用意识形态教化实现统治制度的合法化，则具有一切国家机器所不具备的优势。学校思想政治教育因其努力以占支配地位的价值观念与思想方式向受众进行教育，促使受众形成共同持有的价值观、信仰的特性，而成为统治阶级强化意识形态控制力的首选。

关键词： 双元治理模式   内部控制理论   组织框架   控制要素  

摘要： 本文在分析"股东至上"与"共同治理"两种思想基础上,结合人力资本性质及特征提出"双元治理模式,"即内部公司治理结构体现为非人力资本所有者出资后,企业内部董事人力资本所有者群体与经理阶层人力资本所有者群体在合作性竞争博弈的基础上构建的内部治理。在此基础上,提出了内部控制机制的组织框架、控制要素及当前内部控制体系亟待加强的工作:强化内部审计、预算控制、道德规范与行为准则建设。

关键词： 控制计算机   大脑   鼠标指针   科学家   小游戏  

摘要： 科学家最新研究证实通过大脑意识控制计算机将成为现实，他们在实验中能够实现大脑意识控制计算机，如：操控鼠标指针、运行简单的小游戏、调节照片亮度等。

关键词： 临床医务人员   医院感染   控制意识  

摘要： 目的充分提高临床医务人员医院感染预防控制参与意识。方法将基础知识融入宣传周活动,将基本技能融入技能竞赛中。结果医院感染控制在行动的活动,极大的调动了临床医务人员感染预防控制的参与意识;全院54个临床科室,27个辅助科室,共2483人参加,占全院职工的75.0%;该次活动前后医护人员手卫生依从性的测试中,医师的手卫生依从性由活动前16.3%,提高到活动后36.4%,提高了20.1%,护士由活动前24.6%,提高到活动后37.5%,提高了12.9%。结论医院感染预防控制需要临床医务人员的共同参与,提高全院医务人员的医院感染控制意识,可推动临床医院感染控制工作的深入。

关键词： BRAIN function localization   INDIVIDUAL differences   SUBCONSCIOUSNESS   MOTOR ability   GABA   NEUROCHEMISTRY   MAGNETIC resonance imaging  

摘要： Subliminal visual stimuli affect motor planning [1], but the size of such effects differs greatly between individuals [2, 3]. Here, we investigated whether such variation may be related to neurochemical differences between people. Cortical responsiveness is expected to be lower under the influence of more of the main inhibitory neurotransmitter, GABA [4]. Thus, we hypothesized that, if an individual has more GABA in the supplementary motor area (SMA)-a region previously associated with automatic motor control [5] this would result in smaller subliminal effects. We measured the reversed masked prime-or negative compatibility-effect, and found that it correlated strongly with GABA concentration, measured with magnetic resonance spectroscopy. This occurred specifically in the SMA region, and not in other regions from which spectroscopy measurements were taken. We replicated these results in an independent cohort: more GABA in the SMA region is reliably associated with smaller effect size. These findings suggest that, across individuals, the responsiveness of subconscious motor mechanisms is related to GABA concentration in the SMA.

关键词： 供应室   消毒   知识培训   质量控制  

摘要： 消毒供应室的工作质量与医院感染有着不可分割的联系,为保障医疗质量与医疗安全,近年来国家对消毒供应室的质量管理提出了更高的要求。随着卫生部强制性卫生行业标准的实施，消毒供应室工作人员的质量控制意识需要进一步提高，为此护士长必须加强对工作人员法律知识及岗位知识的培训，现将2009年1月-2010年3月我院消毒供应室的培训情况总结如下，与同行们共同探讨。