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Chemical Research in Chinese Universities 2005年第1期21卷 104-108页

作者： mA Dong-sheng, GAO Shan **, HUO Li-hua, GAO Jin-sheng and ZHAO Jin-gui College of Chemistry and Chemical Engineering, Heilongjiang University, Harbin 150080, p. R. China College of Chemistry and Chemical Engineering Heilongjiang University Harbin 150080

Complex VO(C 10H 9NO 3)(C 13H 10NO 2)(C 10H 9NO 2- 3=N-salicylidene-L-alaninate, C 13H 10NO- 2=N-phenylbenzohydroxamate) was synthesized and characterized by means of elemental analysis, IR, UV, 1H NmR spectroscopies, cyclic voltammetry and single crystal X-ray diffraction. The complex crystallized in a monoclinic system with space group p2 1 and crystal cell parameters a=0.9720(1) nm, b=1.8274(2) nm, c=1.2542(1) nm, β=104.868(9)°, V=2.1532(4) nm3, m r=470.34, Z=2. The two oxygen atoms and the one nitrogen atom of the tridentate Schiff base ligand and the one oxime oxygen atom of the hydroxamate ligand coordinate to the vanadium atom, forming an equatorial plane, the two axial positions are respectively occupied by the oxygen atom of the oxovanadium and the carbonyl oxygen atom of the hydroxamate and the vanadium atom exhibits a distorted octahedral VO(ONO)(OO) coordination sphere. The 1H NmR spectrum suggests that the two isomers, endo and exo in a molar ratio of 1/1.7, coexist in the solution of the title complex in CDCl 3. There exists a quasi-reversible one-electron redox reaction corresponding to VⅤ/VⅥ couple in the three non-aqueous solvents, and the redox potential E 1/2 of the title complex substantially shifts in the direction of the positive voltage increase in the order: CH 2Cl 2mF.

关键词： Oxovanadium complex Hydroxamate complex Crystal structure Spectral property

In situ magnesium calcium phosphate cements formation: From one pot powders precursors synthesis to in vitro investigations

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Bioactive materials 2020年第3期5卷 644-658页

作者： m.A.Goldberg p.A.Krohicheva A.S.Fomin D.R.Khairutdinova O.S.Antonova A.S.Baikin V.V.Smirnov A.A.Fomina A.V.Leonov I.V.mikheev N.S.Sergeeva S.A.Akhmedova S.m.Barinov V.S.Komlev A.A.Baikov Institute of metallurgy and materials Science Russian Academy of Sciences119334Leninsky av49MoscowRussian Federation m.V.Lomonosov moscow State University Department of Chemistry119991Leninskie Gory1MoscowRussian Federation Federal State Budgetary Institution National medical Research Radiological Center of the ministry of Health of the Russian Federation 1252842nd Botkinsky pass.3MoscowRussian Federation

Calcium phosphate cements are of great interest for researchers and their applications in medical practice ***,they have a number of drawbacks including the insufficient level of mechanical properties and low degradation ***(mgNH4pO4)-based cements,which grew in popularity in recent years,despite their neutral pH and acceptable mechanical performance,release undesirable NH4+ions during their *** issue could be avoided by replacement of ammonia ions in the cement liquid with sodium,however,such cements have a pH values of 9–10,leading to ***,the main goal of this investigation is to optimize the composition of cements to achieve the combination of desirable properties:neutral pH,sufficient mechanical properties,and the absence of cytotoxicity,applying Na2HpO4-based cement *** this purpose,cement powders precursors in the CaO-mgO-p2O5 system were synthesized by one-pot process in a wide composition range,and their properties were *** optimal performance was observed for the cements with(Ca+mg)/p ratio of 1.67,which are characterized by newberyite phase formation during setting reaction,pH values close to 7,sufficient compressive strength up to 22±3 mpa(for 20 mol.%of mg),dense microstructure and adequate matrix properties of the *** set of features make those materials promising candidates for medical applications.

关键词： magnesium calcium phosphate cement Stanfieldite Whitlockite Newberyite Brushite In vitro investigations

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钯合金扩散装置一种生产超纯氢的新型设备

稀有金属材料与工程 1972年第6期 72-75页

作者： p·m·罗伯兹北京七四一信箱

H;气有能力透过很多金属的晶格,但是纯钯和某些钯合金是唯一的金属:在适当的压力温度情况下,H;能很迅速地扩散。然而纯钯是不适合作扩散膜的,因为温度在310℃以下时会发生α—β相转变。它使

关键词：扩散膜纯氢超纯分离膜装置

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对pr3+:LaF3的分时荧光线窄化研究

发光学报 1975年第6期 32-33页

作者： p.m.Selzer 美国威斯康星大学物理系

我们用分时荧光线窄化技术直接观察了pr3+∶LaF3的光激发3p0态中的能量传递。研究了在5°K和40°K之间5克分子％样品的3p0-3H4共振跃迁过程对温度的依

关键词：窄化 pr LaF3 荧光弱光

用TRXRF分析法测试马来西亚微咸水中双壳类软体动物Geloina ceylonica(Lamarck)中的重金属

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海洋科学 1984年第2期 37-40页

作者： p.m.Sivalingam 马来西亚科大生物科学院

马来西亚有近2.4%的陆地面积(相当于650,000公顷)是红树林沼泽区。其中,110,000公顷在马来西亚半岛,174,000公顷在沙捞越,366,000公顷在马来西亚的沙巴。当前对于马来西亚红树林沼泽区的生态研究还寥寥无几(Sase Kumar,1970;Ong等人,19... 详细信息

马来西亚有近2.4%的陆地面积(相当于650,000公顷)是红树林沼泽区。其中,110,000公顷在马来西亚半岛,174,000公顷在沙捞越,366,000公顷在马来西亚的沙巴。当前对于马来西亚红树林沼泽区的生态研究还寥寥无几(Sase Kumar,1970;Ong等人,1979)。对植物区系和动物区系的研究显然也是如此(Berry,1968,1972和1974;Lim,

关键词：无潮区 TRXRF Geloina ceylonica Lamarck 双壳类潮线马来西亚软体动物

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慢性心力衰竭时外周循环的调节

国际心血管病杂志 1983年第6期 322-326页

作者： Vanhoutte p m 钱学贤

血管通过其管壁平滑肌细胞收缩程度的改变积极地参于心血管的调节.主动脉和大动脉血管平滑肌细胞收缩程度的改变致使血管壁的硬度发生变化,加上外周血管阻力的改变,调节血管循环的阻抗.在较小动脉和微动脉(阻力血管)水平,血管直径的变... 详细信息

血管通过其管壁平滑肌细胞收缩程度的改变积极地参于心血管的调节.主动脉和大动脉血管平滑肌细胞收缩程度的改变致使血管壁的硬度发生变化,加上外周血管阻力的改变,调节血管循环的阻抗.在较小动脉和微动脉(阻力血管)水平,血管直径的变化调节各个组织的血流,并有助于决定动脉压.体静脉(容量血管),尤其是内脏静脉的主动扩张和收缩,可调节心血管系统的总容量,从而控制回到右房的血量.皮肤静脉直径的主动变化是皮肤体温调节功能的一个主要决定因素.控制动脉压的三个动力学成分(心室、阻

关键词：肾上腺素能受体前负荷后负荷去甲肾上腺素血管平滑肌细胞儿茶酚胺阻力血管容量血管容量负荷压力负荷神经递体苯胺肾上腺素能神经递质充血性心力衰竭交感神经

Out of plane Thermal Conductivity of Carbon Fiber Reinforced Composite Filled with Diamond powder

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Open Journal of Composite materials 2016年第2期6卷 41-57页

作者： m. Srinivasan p. maettig K. W. Glitza B. Sanny A. Schumacher m. Duhovic J. Schuster Department of Experimental physics University of Wuppertal Wuppertal Germany Department of mechanical Engineering University of Wuppertal Wuppertal Germany Institute for Composite materials Kaiserslautern Germany University of Applied Sciences Kaiserslautern Pirmasens Germany

Highly conductive fillers have a strong influence on improving the poor out of plane thermal conductivity of carbon fiber reinforced composites. The objective of this study has been to investigate the role of the diamond powder (Dp) in enhancing the out-of-plane thermal conductivity of the woven composites. Samples of the standard modulus T300 carbon fiber composite with 44% and 55% fiber volume fraction and the high modulus YS90A carbon fiber composite with 50% volume fraction were fabricated with their matrices comprising of neat epoxy and different loading of diamond powder within epoxy resin. Steady state thermal conductivity measurements were carried out and it was found from the measurements that the out of plane thermal conductivity of the standard modulus composite increased by a factor of 2.3 with 14% volume fraction of diamond powder in the composite while the out of plane thermal conductivity of the high modulus composite increased by a factor of 2.8 with 12% volume fraction of diamond powder in the composite. Finite Element modeling (FEm) with the incorporation of microstructural characteristics is presented and good consistency between the measurements and FEm results were observed.

关键词： Carbon Fibers Thermal Conductivity Finite Element Analysis (FEA) micro-mechanics Thermal measurements

Highly Aligned Ultra-Thick Gel-Based Cathodes Unlocking Ultra-High Energy Density Batteries

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Energy & Environmental materials 2022年第4期5卷 1332-1339页

作者： Shichun Yang Chaochao Zhou Qiong Wang Binbin Chen Yan Zhao Bin Guo Zhengjie Zhang Xinlei Gao Ridwanur Chowdhury Huizhi Wang Chao Lai Nigel p.Brandon Billy Wu Xinhua Liu School of Transportation Science and Engineering Beihang UniversityBeijing 100191China School of Chemistry and materials Science Jiangsu Normal UniversityXuzhou 221116China Imperial College London Sough Kensington CampusLondon SW72AZUK

Increasing electrode thickness can substantially enhance the specific energy of lithium-ion batteries;however,ionic transport,electronic conductivity,and ink rheology are current barriers to ***,a novel approach using a mixed xanthan gum and locust bean gum binder to construct ultrathick electrodes is proposed to address above *** combining aqueous binder with single-walled carbon nanotubes(SWCNT),active material(LiNi_(0.8)Co_(0.1)mn_(0.1)O_(2)) and subsequent vacuum freeze-drying,highly aligned,and low-tortuosity structures with a porosity of ca.50%can be achieved with an average pore size of 10μm,whereby the gum binder-SWCNT-NmC811 forms vertical structures supported by tissue-like binder/SWCNT networks allowing for excellent electronic conducting phase *** a result,ultra-thick electrodes with a mass loading of about 511 mg cm^(−2) and 99.5 wt%active materials have been demonstrated with a remarkable areal capacity of 79.3 mAh cm^(−2),which is the highest value reported so *** represents a>25×improvement compared with conventional electrodes with an areal capacity of about 3 mAh cm^(−2).This route also can be expanded to other electrode materials,such as LiFepO_(4) and Li_(4)Ti_(5)O_(12),and thus opens the possibility for low-cost and sustainable ultra-thick electrodes with increased specific energy for future lithium-ion batteries.

关键词： binder gel-based cathodes high areal capacity lithium-ion battery ultrathick electrodes

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美白牙膏去除牙外源性色斑的八周效果观察

华西口腔医学杂志 1999年第3期17卷 251-253页

作者：胡德渝庞若愚佘晓晴雷德伦 Volpe A R DeVizio W petrone m E Zhang Y p Chaknis p miller S miller J 华西医科大学口腔医学院口腔预防学教研室 610041 宜宾卫生学校资阳市口腔门诊高露洁临床研究所

目的 :评价含有 1%焦磷酸钠、7%三聚硫酸钠、0 .2 4 3 %氟化钠及 10 %高清洁二氧化硅的牙膏减少外源性牙色斑的效果。方法 :采用双盲、分层、二单位平行观察的临床研究方法。根据改良 L obene色斑指数 (L obene stain in-dex m ethod)... 详细信息

目的 :评价含有 1%焦磷酸钠、7%三聚硫酸钠、0 .2 4 3 %氟化钠及 10 %高清洁二氧化硅的牙膏减少外源性牙色斑的效果。方法 :采用双盲、分层、二单位平行观察的临床研究方法。根据改良 L obene色斑指数 (L obene stain in-dex m ethod)均数、性别、吸烟习惯将 91名年龄为 18～ 5 5岁的研究对象平衡地分为两组 ,随机地分配使用试验或对照牙膏。于基线、第 4周及第 8周固定由一名检查者完成研究对象的色斑指数测定。结果 :86人完成了该研究。8周临床研究表明 ,使用美白牙膏的研究对象较对照组的牙齿色斑指数均数降低了 3 7.1% (p=0 .0 0 0 1)。结论 :与对照组牙膏相比 ,使用含有 1%焦磷酸钠、7%三聚硫酸钠、0 .2 4 3 %氟化钠及 10 %高清洁二氧化硅的牙膏可以有效地减少牙外源性色斑。

关键词：牙膏外源性色斑牙色斑指数

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