检索结果-南通市图书馆

Neural Regeneration Research 2012年第28期7卷 2199-2205页

作者： Jun Wang Jing Ge liu Yang Haiyan Zhang xuli li Dan Xue Department of Gynaecology and Obstetrics General Hospital of Shenyang Military Region Shenyang 110016 Liaoning Province China Department of Gynaecology and Obstetrics the 202 Hospital of Chinese PLA Shenyang 110003 Liaoning Province China Shenyang Women and Children Health Center Shenyang 110014 Liaoning Province China

Hyperhomocysteinemia is an important risk factor for preeclampsia-eclampsia. This study established a pregnant rat model of hyperhomocysteinemia, in which blood plasma homocysteine concentrations were twice or three times greater than that of normal pregnant rats. TUNEL revealed an increase in the number of apoptotic cells in the frontal cortex of pregnant rats with hyperhomocysteinemia. In addition, immunohistochemical staining detected activated nuclear factor-KB-positve cells in the frontal cortex. Reverse transcription-PCR detected that mRNA expression of the anti-apoptotic gene bcl-2 diminished in the frontal cortex. In situ hybridization and western blotting revealed that N-methyi-D- aspartate receptor 1 mRNA and protein expression was upregulated in the frontal cortex and hippocampus. These results indicate that hyperhomocysteinemia can induce brain cell apoptosis, increase nerve excitability, and promote the occurrence of preeclampsia in pregnant rats.

关键词： hyperhomocysteinemia homocysteine preeclampsia frontal cortex N-methyI-D-aspartate receptor nerve excitability cell apoptosis pregnancy brain neural regeneration

GREY　DISPLACEMENT　INPUT－OUTPUT　MODELS　OF　MINERAL　PROCESSING－METALLURGY　SYSTEM

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中国有色金属学会会刊：英文版 1995年第1期5卷 11-14页

作者： Han xuli li Songren(Department of Mineral Engineering, Central South University of Technology, Changsha, 410083) CENT S UNIV TECHNOL DEPT MINERAL ENGNCHANGSHA 410083PEOPLES R CHINA

ＧＲＥＹＤＩＳＰＬＡＣＥＭＥＮＴＩＮＰＵＴ－ＯＵＴＰＵＴＭＯＤＥＬＳＯＦＭＩＮＥＲＡＬＰＲＯＣＥＳＳＩＮＧ－ＭＥＴＡＬＬＵＲＧＹＳＹＳＴＥＭＨａｎ；ＸｕｌｉＬｉ；Ｓｏｎｇｒｅｎ（ＤｅｐａｒｔｍｅｎｔｏｆＭｉｎｅｒａｌ... 详细信息

ＧＲＥＹＤＩＳＰＬＡＣＥＭＥＮＴＩＮＰＵＴ－ＯＵＴＰＵＴＭＯＤＥＬＳＯＦＭＩＮＥＲＡＬＰＲＯＣＥＳＳＩＮＧ－ＭＥＴＡＬＬＵＲＧＹＳＹＳＴＥＭＨａｎ；ＸｕｌｉＬｉ；Ｓｏｎｇｒｅｎ（ＤｅｐａｒｔｍｅｎｔｏｆＭｉｎｅｒａｌＥｎｇｉｎｅｅｒｉｎｇ，Ｃｅｎｔｒ...

关键词： mineral processing-metallurgy system input-output grey theory economic model

Design and applications of hollow‐structured nanomaterials for photocatalytic H2 evolution and CO2 reduction

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Chinese Journal of Catalysis 2022年第3期43卷 679-707页

作者： xuli li Ning li Yangqin Gao Lei Ge State Key Laboratory of Heavy Oil Processing College of New Energy and MaterialsChina University of Petroleum BeijingBeijing 102249China Department of Materials Science and Engineering College of New Energy and MaterialsChina University of Petroleum BeijingBeijing 102249China

Photocatalysis is considered a prospective way to alleviate the energy crisis and environmental *** is therefore extremely important to design highly efficient photocatalysts for catalytic *** recent years,hollow‐structured materials have attracted considerable interest for application in energy conversion fields owing to their large specific surface areas,improved light absorption,and shortened charge carrier transfer *** they contain inner and outer surfaces,hollow‐structured materials can provide a superior platform for the deposition of other components.A number of hollow‐structured hierarchical systems have been designed and fabricated in recent *** is important to rationally design and construct complex hierarchical *** this review,general preparation approaches for hollow‐structured materials are presented,followed by a summary of the recent synthesis methods and mechanisms of typical hollow‐structured materials for applications in the photocatalytic *** hollow‐structured hierarchical photocatalysts are classified into two types,hollow cocatalyst‐based and hollow host photocatalyst‐based,and the design principle and analysis of the photocatalytic reaction mechanism for photocatalytic H2 evolution and CO_(2) reduction are also *** effects of hollow‐structured materials have also been *** review provides a reference for the rational construction of advanced,highly efficient photocatalytic materials.

关键词： Hollow structure Photocatalysis H_(2)evolution CO_(2)reduction Design principle

The roles and mechanism of cocatalysts in photocatalytic water splitting to produce hydrogen

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Chinese Journal of Catalysis 2020年第4期41卷 642-671页

作者： Nan Xiao Songsong li xuli li Lei Ge Yangqin Gao Ning li State Key Laboratory of Heavy Oil Processing College of New Energy and MaterialsChina University of Petroleum BeijingBeijing 102249China Department of Materials Science and Engineering College of New Energy and MaterialsChina University of Petroleum BeijingBeijing 102249China

Photocatalytic hydrogen(H2)evolution via water spilling over semiconductors has been considered to be one of the most promising strategies for sustainable energy supply in the future to provide non-pollution and renewable *** key to efficient conversion of solar-chemical energy is the design of an efficient structure for high charge separation and ***,cocatalysts are necessary in boosting photocatalytic H2 *** date,semiconductor photocatalysts have been modified by various cocatalysts due to the extended light harvest,enhanced charge carrier separation efficiency and improved *** review focuses on recent developments of cocatalysts in photocatalytic H2 evolution,the roles and mechanism of the cocatalysts are discussed in *** cocatalysts can be divided into the following categories:metal/alloy cocatalysts,metal phosphides cocatalysts,metal oxide/hydroxide cocatalysts,carbon-based cocatalysts,dual cocatalysts,Z-scheme cocatalysts and MOFs *** future research and forecast for photocatalytic hydrogen generation are also suggested.

关键词： Cocatalysts Photocatalytsts Hydrogen evolution Charge separation Water splitting

Synthesis of ternary Ni_(2)P@UiO‐66‐NH_(2)/Zn_(0.5)Cd_(0.5)S composite materials with significantly improved photocatalytic H_(2)production performance

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Chinese Journal of Catalysis 2022年第5期43卷 1295-1305页

作者： Aixia Wang linhe Zhang xuli li Yangqin Gao Ning li Guiwu Lu Lei Ge State Key Laboratory of Heavy Oil Processing College of New Energy and MaterialsChina University of Petroleum BeijingBeijing 102249China College of Science China University of Petroleum BeijingBeijing 102249China

The design and construction of low‐cost and high‐performance hybrid materials for the photocatalytic hydrogen production reaction(HER)are extremely important for the large‐scale application of hydrogen ***‐organic frameworks(MOFs)are considered to be potential photocatalytic ***,monodisperse,small size,non‐precious metal transition metal phosphide Ni2P is encapsulated into a typical MOF(UiO‐66‐NH2)as a hybrid core‐shell cocatalyst to modify Zn_(0.5)Cd_(0.5)S for photocatalytic hydrogen ***2P is wrapped in UiO‐66‐NH_(2)via an in situ solvothermal method,and Zn_(0.5)Cd_(0.5)S sulfide is decorated with a core‐shell Ni_(2)P@UiO‐66‐NH_(2)cocatalyst to obtain ternary Ni_(2)P@UiO‐66‐NH_(2)/Zn_(0.5)Cd_(0.5)S composite *** and chemical characterization confirms that the ternary composites have good kinetic hydrogen production *** hydrogen production rate of 10%10 mg Ni_(2)P@UiO‐66‐NH_(2)/Zn_(0.5)Cd_(0.5)S reaches 40.91 mmol·g^(–1)·h^(–1)with an apparent quantum efficiency at 420 nm of 13.57%.The addition of 10 mg Ni_(2)P@UiO‐66‐NH_(2)increases the surface area of the ternary material,providing abundant reaction sites and forming an efficient charge transfer channel,which is conducive to efficient hydrogen production by the ternary *** is shown that the formation of a ternary composite system is beneficial to the occurrence of an efficient catalytic *** study provides a new perspective for the construction of high‐performance photocatalytic materials.

关键词： Ni2P UiO‐66‐NH2 Zn0.5Cd0.5S Hydrogen evolution Ternary photocatalyst

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可控式油气管道感应电流排流法研究

铁道标准设计 2009年第9期29卷 109-111页

作者：李许立铁道第三勘察设计院集团有限公司电信电化处天津300251

在铁路电气化工程中,当电气化铁路接触网与油气管道长距离平行、接近时,就会在管道上产生较高的感应电压,其将危及人身和设备的安全,不解决此问题,铁路就不能投运。但国内外通常采用箝位式排流法,由于该电路的结构及采用元件的问题,总... 详细信息

在铁路电气化工程中,当电气化铁路接触网与油气管道长距离平行、接近时,就会在管道上产生较高的感应电压,其将危及人身和设备的安全,不解决此问题,铁路就不能投运。但国内外通常采用箝位式排流法,由于该电路的结构及采用元件的问题,总有部分残存电压,并不能完全消除交流感应电压对管道的影响。为了完全消除其影响,针对原电路的不足,经过分析研究,提出了可控式排流法。其能将原残存电压完全消除,并能做到双向控制。为此,本研究采用了新颖的电路及精心筛选的元件,尽量优化设计。在模拟对比试验中,其防护效果比箝位式排流法提高30%,达到了预期的效果。

关键词：电气化铁路管道防护箝位排流可控排流

对硝基苯甲酸在水溶液和银胶中的紫外拉曼光谱(英文)

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光散射学报 2005年第1期17卷 44-45页

作者： xuli-li liQin FANGYan BeijingKeyLabforNanophotonicsandNanostructure CapitalNormalUniversityBeijing100037P.RChina BeijingInstituteofTechnology Beijing100081P.RChina

本文给出了紫外激发下的PNBA水溶液的拉曼光谱图,并对图中峰位做了相应的归属认证。本文还报道了PNBA在银胶中的表面非增强拉曼散射现象。

关键词：紫外对硝基苯甲酸(PNBA) 拉曼光谱

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基于SIP协议的IPCC平台的研究与实现

科技信息 2008年第21期 74-76页

作者：许莉丽浙江经贸职业技术学院

优质的客户服务对于企业的发展起到很大的作用,基于IP的呼叫中心(IPCC)平台是企业与客户交流沟通并提供优质客服的廉价平台,能够为企业间接地创造利润与效益,对基于SIP协议的IPCC平台进行研究,提炼IPCC平台的两大核心功能话务控制和话... 详细信息

优质的客户服务对于企业的发展起到很大的作用,基于IP的呼叫中心(IPCC)平台是企业与客户交流沟通并提供优质客服的廉价平台,能够为企业间接地创造利润与效益,对基于SIP协议的IPCC平台进行研究,提炼IPCC平台的两大核心功能话务控制和话务自动分配(ACD),深入分析SIP协议的会话信令消息格式,研究话务控制单元的控制模式,分析研究话务自动分配调度的几种算法,并实现IPCC平台,从而为企业利用已有的局域网资源搭建廉价的IPCC平台创造了技术上的条件。

关键词： IPCC SIP 话务控制话务自动分配(ACD)

感觉统合训练治疗精神运动发育迟缓患儿的效果

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中外医学研究 2021年第35期19卷 1-4页

作者：李旭利麻城市妇幼保健院湖北麻城438300

目的:分析感觉统合训练对精神运动发育迟缓患儿运动、语言功能及智力影响。方法:选取麻城市妇幼保健院2018年3月-2019年3月住院治疗的400例精神运动发育迟缓患儿,根据随机数字表法将其分为参照组(200例)和试验组(200例),参照组采纳常规... 详细信息

目的:分析感觉统合训练对精神运动发育迟缓患儿运动、语言功能及智力影响。方法:选取麻城市妇幼保健院2018年3月-2019年3月住院治疗的400例精神运动发育迟缓患儿,根据随机数字表法将其分为参照组(200例)和试验组(200例),参照组采纳常规治疗,试验组在参照组基础上采纳感觉统合训练,比较两组临床疗效,以及治疗前后语言行为评估量表(VerBAS)评分、Gesell评分、韦氏儿童智力量表(WISC-CR)评分。结果:试验组总有效率98.50%,高于参照组的92.50%(P<0.05),试验组治疗后描述性、交流性、接受性语言能力评分,语言、精细动作、粗大运动、情感、社会评分,语言智商(VIQ)、操作智商(PIQ)、总智商(FIQ)评分均高于参照组(P<0.05)。结论:感觉统合训练在改善精神运动发育迟缓患儿发育、语言功能方面效果显著,同时可促进智力发育,进而改善患儿预后。

关键词：常规治疗感觉统合训练精神运动发育迟缓治疗效果

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感应式高压测量法

现代电子技术 2009年第17期32卷 147-148页

作者：李许立铁道第三勘察设计集团有限公司电化电信研究处天津300142

高压隔离开关是高压线路与变电站的分界点。在高压隔离开关之外的高压线路上是不允许变电站装设任何电器设备的。针对着普通电压互感器必须与高压线路相连才能测量电压的不足,提出一种感应式高压测量方法。此方法可不接触高压线路而测... 详细信息

高压隔离开关是高压线路与变电站的分界点。在高压隔离开关之外的高压线路上是不允许变电站装设任何电器设备的。针对着普通电压互感器必须与高压线路相连才能测量电压的不足,提出一种感应式高压测量方法。此方法可不接触高压线路而测量线路电压,使得变电站增加了一种对高压线路的检测手段。通过对本系统各个部分的构成和分析得出该方法的可行性和优越性的结论。

关键词：高压测量互感器式接触测量感应式非接触测量