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Chinese Journal of Structural Chemistry 2019年第5期38卷 825-836,672页

作者： chen zhi-xin Instrumental Measurement & Analysis Center Fuzhou University State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Key Laboratory of Ecological Environment and Information Atlas Fujian Provincial University

The cubic In(OH)3/ZnIn2S4 heterostructures were successfully synthesized via a simple strategy of post-treatment of cubic ZnIn2S4(C-ZIS), and their structures and properties were characterized by X-ray diffraction(XRD), UV-vis diffuse reflectance spectra(DRS), field emission scanning electron microscopy(FESEM) and transmission electron microscopy(TEM). According to the results, the tofu-like In(OH)3 semiconductor as a new crystal phase appeared in the matrix of C-ZIS and formed a In(OH)3/ZnIn2S4 heterostructure. Compared with pure C-ZIS, the heterostructure exhibits higher photocatalytic activity towards selective oxidation of benzyl alcohol under visible light. The In(OH)3/ZnIn2S4 heterostructure manifests the best and the highest photocatalytic performance via 18 h post-treatment, which achieved nearly 100% selectivity, 35.5%conversion and 34.5% yield. This is ascribed to the formation of In(OH)3/ZnIn2S4 heterostructure to promote the transfer of photogenerated electron-hole pairs and thus efficiently inhibits their recombination, leading to the longer lifetime of photo-induced carriers. Furthermore, a possible photocatalytic mechanism is proposed and discussed. Our current work could boost more interest in researching the semiconductor materials of ternary chalcogenides and enlarging the applications based on cubic ZnIn2S4 heterostructure as visible-light-driven photocatalyst.

关键词： ZnIn2S4 In(OH)3 heterostructure post-treatment selective oxidation

Knoevenagel Condensation Catalyzed by DBU Brnsted Ionic Liquid without Solvent

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Chemical Research in Chinese Universities 2009年第6期25卷 876-881页

作者： YING An-guo LIU Luo WU Guo-feng chen xin-zhi YE Wei-dong chen Jian-hui ZHANG Kai-yuan Department of Chemical and BiOlogical Engineering Zhejiang University Hangzhou 310027 P. R. China xinchang Pharmaceuticals Factory Zhejiang Medicine Co. Ltd. Xinchang 312500 P. R. China

A protocol for the Knoevenagel condensation of aromatic aldehydes with methylene compounds catalyzed by task specifed ionic liquid 1,8-diazabicyclo[5.4.0]-undec-7-en-8-ium lactate under solvent-free conditions has been developed. The reactions proceed at ambient temperature and the work-up procedures are very simple. Good to excellent yields could be obtained. The ionic liuid could be simply prepared and recycled efficiently.

关键词： Knoevenagel condensation [DBU][Lac] Ionic liquid Aromatic aldehydes Active methylene compound

Hydrothermal Synthesis,Crystal Structure and Fluorescent Property of a Novel Mo(V) Phosphate [Zn(Mo^v_6P_4O_(31)H_(10))_2(C_4H_(14)N_3)_2]·2C_4H_(13)N_3·8H_2O

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Chinese Journal of Structural Chemistry 2006年第9期25卷 1071-1077页

作者： WEI Chun-Xia chen Jian-xin ZHANG zhi-Chun LANTing-Yan HUANG Yuan-Biao LI Zhong-Shui ZHANG Wen-Jie College of Chemistry and Materials Science Fujian Normal University Fuzhou 350007 China

A new molybdenum phosphate [Zn（Mo^v6P4O31H10）2（C4H144N3）2].2C4H13N3.8H2O 1 （C4H13N3 = diethylenetriamine） has been synthesized under hydrothermal condition. Single-crystal X-ray diffraction reveals that compound 1 crystallizes in the monoclinic, space group P21/n, a = 13.1679（3）, b = 22.1240（6）, c = 13.6146（3） A, β= 103.4847（7）°, V = 3856.95（16） A^3, C16H90N12O70P8ZnMo12, Mr = 3035.41, Z = 2, Dc = 2.614 g/cm^3, μ = 2.483 mm^-1, F（000） = 2968, S = 1.014, the final R = 0.0196 and wR = 0.0506 for 7486 observed reflections （1 〉 2σ（I））. Compound 1 consists of two identical rings of six edge-sharing MoOt, octahedra interconnected by one ZnO6 octahedron, whereas the PO4 tetrahedra which share their apices with the MoO6, octahedra are only located on one side of each Mo6, ring. The 2-charge of polyanion [Zn（Mo^v6P4O31H10）2]^2- unit is compensated in the crystal by two mono-protonated diethylenetriamines （C4H14N3）^＋. By hydrogen bonding interactions the polyanion of compound 1 is interconnected to form pseudo threedimensional molybdophosphate. Other characterizations by elemental analyses, IR spectrum and fluorescent spectrum are also described.

关键词： molybdenum(V) phosphate hydrothermal synthesis crystal structure fluorescent property

High sensitivity C-reactive protein and cardfiac resynchronization therapy in patients with advanced heart failure

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Journal of Geriatric Cardiology 2014年第4期11卷 296-302页

作者： Chi CAI Wei HUA Li-Gang DING Jing WANG Ke-Ping chen xin-Wei YANG zhi-Min LIU Shu ZHANG Cardiac Arrhythmia Center Fuwai Hospital Beilishi road No. 167 Xicheng district Beijing 100037 China

Background The data on the prognostic values of high sensitivity C-reactive protein （hsCRP） levels in patients with advanced symp-tomatic heart failure （HF） receiving cardiac resynchronization therapy （CRT） are scarce. The aim of present study was to investigate the association of serum hsCRP levels with left ventricle reverse remodeling after six months of CRT as well as long-term outcome. Methods A total of 232 CRT patients were included. The assessment of hsCRP values, clinical status and echocardiographic data were performed at baseline and after six months of CRT. Long-term follow-up included all-cause mortality and hospitalizations for HF. Results During the mean follow-up periods of 31.3 ± 31.5 months, elevated hsCRP （〉3 mg/L） prior to CRT was associated with a significant 2.39-fold increase （P=0.006） in the risk of death or HF hospitalizations. At 6-month follow-up, patients who responded to CRT showed significant reductions or maintained low in hsCRP levels （–0.5 ± 4.1 mg/L reduction） compared with non-responders （1.7 ± 6.1 mg/L increase, P=0.018）. Com-pared with patients in whom 6-month hsCRP levels were reduced or remained low, patients in whom 6-month hsCRP levels were increased or maintained high experienced a significantly higher risk of subsequent death or HF hospitalizations （Log-rank P〈0.001）. The echocardio-graphic improvement was also better among patients in whom 6-month hsCRP levels were reduced or remained low compared to those in whom 6-month hsCRP levels were raised or maintained high. Conclusions Our findings demonstrated that measurement of baseline and follow-up hsCRP levels may be useful as prognostic markers for timely potential risk stratification and subsequent appropriate treatment strategies in patients with advanced HF undergoing CRT.

关键词： Cardiac resynchronization therapy Clinical outcome Heart failure High sensitivity C-reactive protein

Beneficial effects of autologous bone marrow mononuclear cell transplantation against ischemic bile duct in rats

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Chinese Medical Journal 2011年第2期124卷 280-283页

作者： LI Li-xin chen DA-zhi HE Qiang Department of Hepatobiliary Surgery Chaoyang Hospital Capital Medical University Beijing 100020 China

Background Bone marrow cell transplantation has been shown to induce angiogenesis and thus improve ischemic *** study evaluated the effect of bone marrow mononuclear cell （BM-MNCs） implantation on neovascularization in rats with ischemic bile *** We established an animal model for ischemic biliary stenosis by clamping *** were 10 rats in each group：BM-MNCs implantation group,control group and normal *** femur BM-MNCs were isolated using density gradient ***-MNCs or phosphate buffered saline were injected into three points around bile duct tissue in the three groups （25 μl/point）.Control rats received injections of saline under similar *** the 21 days after operation,cholangiography was *** of the engrafted cells and capillary density in the bile duct were analyzed by immunohistochemical *** Engrafted cells could differentiate into endothelial *** stricture rate in the implantation group was 40%,significantly lower than that in the control group （100%）.The capillary density in the implantation group was significantly higher than in the control group or the normal *** The implantation of BM-MNCs induced neovascularization in the ischemic bile *** improved the blood supply of the ischemic bile duct to prevent or decrease biliary ischemic stricture.

关键词： bile duct diseases ischemia revascularization

脉冲噪声环境中基于FLOWVD的机械设备故障时频监测方法

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振动与冲击 2013年第10期32卷 136-140页

作者：陈志新北京物资学院物流学院

研究一种在α稳定分布下应用的改进的Wigner-Ville分布(WVD)——分数低阶Wigner-Ville分布(FLOWVD),并提出一种在脉冲噪声环境中基于FLOWVD的机械设备故障时频监测方法。仿真信号和实际信号的研究表明:FLOWVD是一种比WVD抗噪能力更强、... 详细信息

研究一种在α稳定分布下应用的改进的Wigner-Ville分布(WVD)——分数低阶Wigner-Ville分布(FLOWVD),并提出一种在脉冲噪声环境中基于FLOWVD的机械设备故障时频监测方法。仿真信号和实际信号的研究表明:FLOWVD是一种比WVD抗噪能力更强、更具有实际应用价值、应用更加广泛的时频分析工具。同时指出:机械设备运行现场的振动信号的统计分布特性有些服从分数低阶α稳定分布。

关键词： α稳定分布分数低阶Wigner-Ville分布故障诊断监测

混合动力传动系统扭转减振器的参数设计和性能研究

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内燃机工程 2010年第5期31卷 21-24页

作者：陈志鑫上海汽车集团股份有限公司上海200041

与双质量飞轮式离合器相比,带扭转减振器的离合器更加适合于混合动力传动系统。以一款混合动力变速箱上采用的离合器从动盘式扭转减振器为例,通过系统建模分析,设计了减振器参数。同时分析了扭转减振器刚度和阻尼对减振性能的影响。

关键词：内燃机扭转减振器混合动力汽车

基于SOA-DI结构的OTDM分组网分组头提取技术

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光子学报 2008年第12期37卷 2443-2447页

作者：陈志新中央财经大学信息学院北京100871

提出了一种基于SOA-DI结构在OTDM网中光分组信头提取的方案,该方案利用半导体光放大器(SOA)的增益饱和效应,通过DI结构干涉实现了2.5Gbit/s全光信头和40Gbit/s净荷数据的OTDM光分组包信头提取,提取的光分组信头消光比可达16dB以上.给出... 详细信息

提出了一种基于SOA-DI结构在OTDM网中光分组信头提取的方案,该方案利用半导体光放大器(SOA)的增益饱和效应,通过DI结构干涉实现了2.5Gbit/s全光信头和40Gbit/s净荷数据的OTDM光分组包信头提取,提取的光分组信头消光比可达16dB以上.给出了理论模型并进行了数值仿真,从理论上对输入脉冲能量和脉宽、SOA的饱和能量、SOA载流子寿命、SOA小信号增益以及DI干涉时延差等重要参量对光分组包信头提取质量的影响做了分析.该方案结构简单,易于集成.

关键词：信头提取半导体光放大器小信号增益 SOA载流子寿命

全氟环氧丙烷的电化学法合成研究Ⅰ氧化媒质NaBr溶液的电解

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化学反应工程与工艺 2000年第1期16卷 23-25,29页

作者：陈新志张未星浙江大学化工系浙江杭州310027

在由离子膜分隔的电解槽中电解溴化钠溶液 ,所产生的含溴阳极液和碱性阴极液 ,分别是由全氟丙烯合成全氟环氧丙烷的环氧化剂和皂化剂。本文实验研究了电解过程并获得了较合适的工艺条件。

关键词：氧化还原全氟环氧丙烷电化学 HFPO 溴化钠

5-羟基-4-甲氧基-2-取代基苯甲醛合成研究

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高校化学工程学报 2007年第6期21卷 1019-1023页

作者：刘涛陈新志浙江大学化学工程与生物工程学系

以藜芦醛为起始原料,制取2-溴-5-羟基-4-甲氧基苯甲醛(Ⅰ)和5-羟基-4-甲氧基-2-硝基苯甲醛(Ⅱ)。藜芦醛经过溴化和硝化分别得到中间体2-溴-4,5-二甲氧基苯甲醛和4,5-二甲氧基-2-硝基苯甲醛。蛋氨酸存在下,中间体经浓硫酸水解,分别合成... 详细信息

以藜芦醛为起始原料,制取2-溴-5-羟基-4-甲氧基苯甲醛(Ⅰ)和5-羟基-4-甲氧基-2-硝基苯甲醛(Ⅱ)。藜芦醛经过溴化和硝化分别得到中间体2-溴-4,5-二甲氧基苯甲醛和4,5-二甲氧基-2-硝基苯甲醛。蛋氨酸存在下,中间体经浓硫酸水解,分别合成了Ⅰ和Ⅱ。产品结构经过核磁共振谱、红外光谱、质谱验证。产物Ⅰ和Ⅱ的收率分别为85.0%和收率为65.0%。实验结果得出藜芦醛硝化和溴化反应的定位规律,并推测水解过程中蛋氨酸分别与Ⅰ和Ⅱ形成多氢键缔合物的作用机制,并对蛋氨酸与Ⅱ的形成的多氢键缔合物分子在HF/6-31G*水平上单点能进行计算,其总能量为-1532.5hartree。

关键词：溴代硝化蛋氨酸水解