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Journal of Environmental Sciences 1995年第4期7卷 414-421页

作者： Wang Jianhua , He Ronghuan(chemistry department of Yantai Normal {2., Yantai 2.402. , china)

Ｉｎｖｅｓｔｉｇａｔｉｏｎｓｏｎｓｉｍｕｌｔａｎｅｏｕｓｄｅｔｅｒｍｉｎａｔｉｏｎｏｆｓｉｌｖｅｒａｎｄｍｅｒｃｕｒｙｉｎｃａｔａｌｙｔｉｃ－ｌｉｇａｎｄｓｕｂｓｔｉｔｕｔｉｏｎｒｅａｃｔｉｏｎｗｉｔｈｓｔｏｐｐｅｄ... 详细信息

Ｉｎｖｅｓｔｉｇａｔｉｏｎｓｏｎｓｉｍｕｌｔａｎｅｏｕｓｄｅｔｅｒｍｉｎａｔｉｏｎｏｆｓｉｌｖｅｒａｎｄｍｅｒｃｕｒｙｉｎｃａｔａｌｙｔｉｃ－ｌｉｇａｎｄｓｕｂｓｔｉｔｕｔｉｏｎｒｅａｃｔｉｏｎｗｉｔｈｓｔｏｐｐｅｄ－ｆｌｏｗｔｅｃｈｎｉｑｕｅｃａｌ...

关键词： kinetic stopped FIA synergistic catalytic coefficient simultaneous determination mercury(II) silver(I).

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国外发展高中阶段职业教育策略的比较研究

外国教育研究 2002年第12期29卷 21-25页

作者：邓宏宝南通师范学院教育系江苏南通226007

世界各国在发展高中阶段职业教育的进程中,既有诸多成功的策略,也有不少惨痛的教训,系统地对这些做法、策略及其经验教训进行研究,有助于为我国更好地确立高中阶段职业教育的发展策略寻求理论与实践依据,加快普及高中阶段教育的进程。

关键词：教育策略国外高中阶段职业教育教育比较

A　NEW　EMPIRICAL　EQUATION　ON　CORRELATION　BETWEEN　TOPOLOGIC　INDEX　AND　PHYSICO－CHEMICAL　PROPERTIES　OF　NORMAL　PARAFFINS

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Chinese Chemical Letters 1996年第8期7卷 771-772页

作者： Cai Hua NI Xian Yu ZENG ping MEI(department of chemistry, JingZhou {2.’ college department of Polymer Science, Beijing Universityof Chemical Techology department of Applied chemistry, Jianghan Petroleum Institute). department of chemistry Jingzhou Teachers' College department of Polymer Science Beijing Univ. of Chemical Technology department of Applied chemistry Jianghan Petroleum Institute

An empirical epuation to reveal relations between topological index(ZG)and physico chemical portes of normal paraffins is proposed as follows; p= a ig ZG/Nx + b, where P standsfor a physico-chemical property, N is the number of carbon atoms in the molecule, and ZG is thetopological index proposed by Hosoya a, b, and x are constants related to a certain Phyaicochemical property. Thirteen properties are calculated ac this equation The values of theseproperties caiculated are Close to those from experiments.

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Nonlinear codes with asymptotic parameters better than the Gilbert-Varshamov and the Xing Bounds

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Science china Mathematics 2006年第6期49卷 852-864页

作者： HU Wanbao department of Mathematics, Anqing teachers {2., Anqing 2.6011, china National Mobile communications Research, Southest University, Nanjing 2.0096, china 1. department of Mathematics Anqing Teachers College Anqing 246011 China 2. National Mobile communications Research Southest University Nanjing 210096 China

In this paper, we show that the Gilbert-Varshamov and the Xing bounds can be improved significantly around two points where these two bounds intersect by nonlinear codes from algebraic curves over finite fields.

关键词： nonlinear code, algebraic curve, Gilbert-Varshamov bound, Xing bound.

Study on interaction between macrocell and microcell in the early corrosion process of reinforcing steel in concrete

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Science china(Technological Sciences) 2010年第5期53卷 1285-1289页

作者： LI LanQiang1,DONG ShiGang1,WANG Wei2.HU RongGang1,DU RongGui1,LIN ChangJian1,ZHUO XiangDong1 & WANG Jia2.1 State Key Laboratory of Physical chemistry of Solid Surfaces,department of chemistry,college of chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,china 2.college of chemistry and Chemical Engineering,Ocean University of china,Qingdao 2.6100,china 1. State Key Laboratory of Physical chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China2. College of Chemistry and Chemical Engineering Ocean University of China Qingdao 266100 China

An array electrode technique was developed as a novel electrochemical method for studying the interaction between macrocell and microcell in the early corrosion process of reinforcing steel in cement *** corrosion potential and galvanic current of macrocell corrosion of the reinforcing steel in cement mortar were imaged by the array electrode technique during the corrosion initiation and *** was certified that the corrosion macrocell current is closely related with the difference of corrosion potential between the anodic and cathodic *** corrosion macrocell and microcell always exist during the corrosion *** interaction of corrosion macrocell and corrosion microcell of steel in concrete was directly sensed by the array electrode for the first time,and was discussed in terms of corrosion electrochemistry.

关键词： reinforcing steel in concrete array electrode macrocell microcell

STABILITY OF POLY(N,N'-METHYLENEBISACRYLAMIDE-co-4-VINYLPYRIDINE)MICROGEL DISPERSION AND ADJUSTMENT OF THE HYDROPHOBICITY IN THE MICROGELS

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Chinese Journal of Polymer Science 2005年第6期23卷 635-642页

作者： Qing-de Chen Xing-hai Shen and Hong-cheng Gao department of Applied chemistry,{2. of chemistry and Molecular Engineering,Peking University,Beijing 100871,china Peking Univ Dept Appl Chem Coll Chem & Mol Engn Beijing 100871 Peoples R China

In the UV-Vis spectra of pure light-scattering systems, there is an exponential relationship between absorbance and wavelength （A = Kλ^-n）. Here, the exponent n is named as flocculation-coagulation parameter. In the present paper, the effects of different additives on the stability of poly（N,N＇-methylenebisacrylamide-co-4-vinylpyridine）（poly（Bis-co-4-VP）） microgel dispersion were studied in detail via this parameter. The results showed that the stability of the dispersion mainly comes from the ionization of pyridine groups, making the microgel positively charged on its surface. This was confirmed by the measurement of Zeta potential and the result of conductometric titration. The result of fluorescence analysis indicated that the hydrophobicity in the microgels is enhanced with the increase in total 4-VP unit content.

关键词： Microgel dispersion(s) 4-Vinylpyridine Flocculation-coagulation parameter Zeta potential

A theorem on the transcendency of a function

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Chinese Science Bulletin 1998年第1期43卷 24-27页

作者： YU Xiuyuan Hangzhou teachers college, Hangzhou 310012.{2. Hangzhou teachers college Hangzhou China

For the transcendency of the limit of a sequence of algebraical functions, a theorem is given.

关键词： algebraical functions limit transcendency.

SYNTHESIS AND PROPERTIES OF NEW MESOGEN-JACKETED LIQUID CRYSTALLINE POLYMERS

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Chinese Journal of Polymer Science 2000年第2期18卷 139-148页

作者： Qi-ding Mi Qi-feng Zhou department of Polymer Science & Engineering, college of {2. Peking University, Beijing 100871, china Peking Univ Coll Chem Dept Polymer Sci & Engn Beijing 100871 Peoples R China

Some new mesogen-jacketed liquid crystalline polymers (MJLCP) with polymer backbones, spacers, and mesogenic units of different structures were synthesized by radical polymerization. The mesomorphic behavior of these polymers was examined using differential scanning calorimetry (DSC) and polarizing optical microscopy (POM). Their liquid crystallinity is influenced by the variation of polymer backbone, spacer, mesogenic unit and its terminal groups. The results show that 1) a more flexible polymer main-chain is more favorable to the formation of a liquid crystal phase, while 2. a flexible spacer will decrease the 'Jacket Effect' and the liquid crystallinity and 3) a subtle modification of the terminal groups on the mesogenic unit may also have a significant influence on properties of the polymers.

关键词： mesogen-jacketed liquid crystalline polymers polymer backbones spacers mesogenic units liquid crystallinity

Synthesis of α-[2.(2. 4-Dichlorophenoxy) Propionyloxy] Alkyl Phosphonates

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Chinese Chemical Letters 1997年第11期8卷 943-944页

作者： Jun WANG Hong Wu HE and Zhao Jie LIU(Institute of Organic Synthesis, Central china Normal University, Wuhan, 430070)(department of {2., Xiaogan teachers college, Hubei, 432.00) Cent china Normal Univ Inst Organ Synth Wuhan 430070 Peoples R China Xiaogan teachers Coll Dept Chem Hubei 432100 Peoples R China

The synthesis of thirteen new compounds α - [2.- (2. 4 -dichlorophenoxy) propionyloxy] alkyl phosphonates was described. The structures of these compounds were characterized by IR, 1H-NMR and MS.

关键词： Synthesis of Propionyloxy Dichlorophenoxy Alkyl Phosphonates

EFFECTS OF L-PHENYLALANINE ON THE RADIATION SYNTHESIS OF POLY(N,N'-METHYLENEBISACRYLAMIDE-co-4-VINYLPYRIDINE)(MICRO)GELS

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Chinese Journal of Polymer Science 2005年第6期23卷 643-650页

The effects of L-phenylalanine （L-Phe） on the synthesis ofpoly（N,N＇-methylenebisacrylamide-co-4-vinylpyridine）（poly（Bis-co-4-VP））（micro）gels by γ-ray irradiation were studied. The addition of L-Phe could not only decrease the gelation dose （Dg） of the synthesis obviously, but also transform the morphology of copolymer from microgel to gel. In addition, the swelling ability of the （micro）gels was also affected in the presence of L-Phe. The decrease of Dg was ascribed to the effect of pH, while the transformation of the morphology was ascribed to the effect of L-Phe on the stability of the poly（Bis-co-4-VP） microgel. Such an effect was confirmed further as compared with the effects of L-alanine, L-glutamic acid, L-arginine, sulfuric acid and aqueous ammonia.

关键词： L-Phenylalanine γ-Ray irradiation Gelation dose Morphology transformation (Micro)gel