32 research outputs found

    The research on the Leading Group mechanism in local governance ——Taking Xiamen Muck Leading Group as an example

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    领导小组一般作为一种议事协调机构和临时机构(或称非常设机构)广泛存在于中国各级党政机关中,是我国条块分割体制下的必然选择,具有中国政治特色。相较于政府常设部门,领导小组具有突出的灵活性和协调性。当前,在地方治理的背景下,重新审视领导小组,把它看作是地方治理的一种机制,不仅是发展领导小组的必然要求,更是推进国家治理体系和治理能力现代化的题中之意。 本文以地方治理中的领导小组为研究主题。在回顾分析领导小组相关文献的基础上,先对地方治理背景下的领导小组进行一般分析,包括领导小组概念界定、历史溯源、法律依据、形成机理,特别是结合我国条块分割体制、专项治理活动、直线-职能组织结构对地方治理造成的困境来...The Leading Group is generally regarded as a kind of deliberation and coordination agency and temporary institution (or non-permanent organization), which is widely exist in the Chinese party and government organs at all levels in China, and is an inevitable choice under the fragmented system of our country. This has Chinese political characteristics. Leading Groups have greater flexibility and co...学位:管理学硕士院系专业:公共事务学院_行政管理学号:1392014115045

    Study on extraction technology of volatile oil from cortex phellodendri by supercritical carbon dioxide

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    使用超临界二氧化碳技术对经过超声-微波处理过的黄柏中的挥发油进行萃取,并对萃取工艺进行响应面优化。在单因素预实验的基础上,以萃取压力、萃取温度、萃取时间为响应因素,黄柏挥发油的萃取量为响应值,根据中心组合(bOX-bEHnkEn)实验设计原理,采用三因素三水平的响应面分析法,确定各工艺条件对萃取量的影响,并用扫描电子显微镜(SEM)对萃取前、未超声-微波处理超临界萃取后及超声-微波处理超临界萃取后的黄柏进行比较观察,对萃取效果进行了微观解释。结果表明,经过超声-微波处理过的黄柏中的挥发油超临界二氧化碳萃取最佳工艺条件为:萃取压力为34MPA,萃取温度为41℃,萃取时间为66MIn,萃取率达6.03%。The supercritical carbon dioxide extraction of volatile oil from processed cortex phellodendri was optimized by response surface methodology(RSM).According to the principle of Box-Behnken central composite design,extraction pressure,extraction temperature,extraction time were chosen as response factors,extraction mass was chosen as response value,and a three-factor and three level central composite design was adopted to determine the influence of various technological conditions.Using SEM observed the cortex phellodendri before and after extraction,and explained the extraction effects from microcosmic aspect.The results showed that the optimum extraction conditions were as follows:extraction pressure 34MPa,extraction temperature 41℃,extraction time 66min,extraction yield was 6.03%.湖南省科技厅重大专项(2008FJ1007);2010年吉首大学大学生研究性学习与创新性实验计划项目(JSU-CX-2010-49

    问题与对策:高等教育国际化几个问题的思考

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    大学自产生之日起就被赋予了国际化的内涵与灵魂,随着经济全球化的深入发展,高等教育国际化已经成为一种必然趋势。我国的高等教育在国际化的浪潮中取得了一定的成效,但在师资力量、学生流动、学术交流、课程体系、中外合作办学等方面也存在着"虚假繁荣"的问题,这些问题的存在在某种程度上扭曲了高等教育国际化的本质,损伤着高等教育国际化的持续健康稳定发展

    发现与释放人的天赋:理解教育的一把钥匙

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    教育与天赋相互联系且相互影响、密不可分。天赋作为教育的"自然法则"是教育得以发展的"原材料",离开天赋,教育难以"生根发芽"。过度教育遮蔽人的天赋,教育不足摧毁人的天赋。而适切教育是发现人之天赋的"敲门砖",是唤醒沉睡人之天赋的"良药",是开发人之天赋的"助推器"。教育与天赋是质料与形式的关系,释放人的天赋是理想教育的"金钥匙",理想的教育必须充分释放人的天赋潜能。广西教育科学“十二五”规划2014年度广西教育科学重点研究基地重大课题(2014JD211

    Adaptation and Transcendence of the Classification Development of Universities

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    分类发展是高等学校发展的理性选择,在分类发展的过程中既要适时适应,又要适度超越。适时适应是高等学校分类发展的现实需要,适应社会发展是高校分类发展的社会使命,适应高校实情是高校分类发展的行动起点,适应大学生就业是高校分类发展的动力源泉。适度超越是高校分类发展的理想诉求,适度超越社会发展,彰显高校个性;适度超越高校现实,实现高校分类的可持续发展;适度超越个人需求,实现"整体性人"的生成。适应与超越是高校分类发展中互为递进的动态过程。Classified development is the rational choice of university development, and it is necessary to timely adapt the classification process of development as well as to moderate beyond it. To timely adapt the classification is the real need of the classification development of universities, to adapt the social development is the social mission of the classification development of universities, to adapt the reality of university is the starting point of the classifica-tion development of universities, and to adapt the employment of university students is the power source of the classification development of universities. Moderate transcendence is the ideal aspirations of the classification development of universities which moderating transcend the social development and highlighting the personality Universities ;moderate transcendence the reality of universities so as to achieve the sustainable development of classification ; moderate transcendence personal needs so as to achieve the formation of " integrity" . Adaptation and transcendence is a mutual progressive dynamic process of the classification development of universities.广西教育科学“十二五”规划2014年度广西教育科学重点研究基地重大课题“广西高等学校分类发展实证研究——高职高专教育”(2014JD211

    问题与对策:高等教育国际化几个问题的思考

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    大学自产生之日起就被赋予了国际化的内涵与灵魂,随着经济全球化的深入发展,高等教育国际化已经成为一种必然趋势。我国的高等教育在国际化的浪潮中取得了一定的成效,但在师资力量、学生流动、学术交流、课程体系、中外合作办学等方面也存在着"虚假繁荣"的问题,这些问题的存在在某种程度上扭曲了高等教育国际化的本质,损伤着高等教育国际化的持续健康稳定发展

    网络环境下的地理信息服务集成研究      

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    从Web Services的角度,根据地理信息的特殊性,研究地理信息服务的实现方法和发布策略,实现了高效的地理信息服务集成方案。

    高功率980nm垂直腔面发射激光器的温度特性

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    应变补偿量子阱结构因带宽大、增益高和波长漂移速度低等特点而成为近年来研究的热点.首次介绍了国内980 nm 高功率InGaAs/GaAsP应变补偿量子阱结构的垂直腔面发射激光器(VCSEL) 变温实验,测得脉冲条件下600 μm直径的器件在10-100℃温度范围内发射波长漂移速度为0.05 nm/K,阈值电流随温度变化呈现先缓慢下降后迅速上升的特性.结合VCSEL反射谱、PL谱和增益峰值波长漂移速度,对器件阈值电流特性进行了合理的分析和解释.连续工作状态下,测试得到器件峰值功率为1 W,根据波长与耗散功率的实验曲线及热阻计算公式,可估算出垂直腔面发射激光器热阻值为10 K/W

    比较经颅超声造影和数字减影血管造影对大脑中动脉狭窄的诊断价值研究 Diagnostic Value of Transcranial Contrast-enhanced Ultrasound and Digital Subtraction Angiography for Middle Cerebral Artery Stenosis

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    【摘要】 目的 比较经颅超声造影(transcranial contrast-enhanced ultrasound,t-CEUS)和DSA在大脑中动脉(middle cerebral artery,MCA)狭窄性疾病中的诊断价值。 方法 收集2017年12月-2019年4月疑似MCA狭窄或闭塞的患者197例,记录其225条狭窄或闭塞的大脑中动脉的t-CEUS和DSA检查结果。根据MCA狭窄程度分为轻度狭窄(30%~50%),中度狭窄(50%~69%),重度狭窄(70%~99%)和闭塞(100%),以DSA为金标准,分析t-CEUS对轻、中和重度MCA狭窄的诊断价值。 结果 197例疑似MCA狭窄闭塞患者中,男132例,女65例,年龄43~72岁,平均(58.4±4.6)岁。经DSA确诊的狭窄和闭塞的225条MCA中,轻度狭窄16条,中度狭窄70条,重度狭窄121条,闭塞18条。t-CEUS诊断狭窄和闭塞的共224条MCA,其中,轻度狭窄18条,中度狭窄76条,重度狭窄112条,闭塞18条。t-CEUS和DSA诊断MCA狭窄和闭塞高度吻合(Kappa=0.91)。t-CEUS诊断轻度MCA狭窄的敏感度、特异度和准确度分别为80%、80%和91%;诊断中度MCA狭窄的敏感度、特异度和准确度分别为83%、93%和97%;诊断重度MCA狭窄的敏感度、特异度和准确度分别为83%、96%和96%。 结论 t-CEUS能够清楚地显示轻、中、重度MCA狭窄和闭塞,适用于MCA狭窄和闭塞类疾病患者的确诊,尤其是适用于不适合DSA检查的疑似MCA狭窄和闭塞患者。 【Abstract】 Objective To investigate the diagnostic value of transcranial contrast-enhanced ultrasound (t-CEUS) and digital subtraction angiography (DSA) for middle cerebral artery (MCA) stenosis or occlusion. Methods A total of 197 patients with suspected MCA stenosis or occlusion from December 2017 to April 2019 were enrolled. A total of 225 stenostic or occluded MCAs were diagnosed by t-CEUS and DSA, according to the degree of MCA stenosis, the MCAs were divided into four groups: mild (30%-50%), moderate (50%-69%), severe (70%-99%) and occlusion (100%). Taking DSA diagnosis as the golden standard, the specificity, sensitivity, and accuracy of t-CEUS diagnosis were analyzed by comparing the results of ultrasound imaging. Results Of all the 197 patients, 132 male and 65 female, with the average age (58.4+4.6) years and the range 43 to 72 years. Of 225 MCAs diagnosed by DSA, 16 MCAs were mild, 70 were moderate, 121 were severe, and 18 were occluded. Of 224 MCAs diagnosed by t-CEUS, 18 were mild, 76 were moderate, 112 were severe, and 18 were occluded. The diagnosis of MCA stenosis/occlusion using t-CEUS and DSA had a high consistency (Kappa=0.91). The sensitivity, specificity and accuracy of t-CEUS for the diagnosis of mild MCAs were 80%, 80%, and 91%, respectively; the sensitivity, specificity and accuracy of t-CEUS for the diagnosis of moderate MCAs were 83%, 93%, and 97%, respectively; the sensitivity, specificity and accuracy of t-CEUS for the diagnosis of severe MCA were 83%, 96%, and 96%, respectively. Conclusions t-CEUS can clearly show mild, moderate and severe stenosis and occlusion in MCAs, and it is suitable for the diagnosis of patients with MCA stenosis and occlusion, especially for the patients with suspected MCA stenosis and who are not suitable for DSA
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