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Synthesis and crystal Structure of One-dimensional chain complexes [K(18-c-6)]_2[M(mnt)_2](M=Zn,Hg)

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chemical research in chinese Universities 2003年第3期19卷 263-268页

作者： WANGDa-qi HEGuo-fang QIULin-lin DOUJian-min Departmentofchemistry LiaochengUniversityLiaocheng252000P.R.China Departmentofchemistry TaishanCollegeTaian271021P.R.China

The reactions of 18 crown 6 with each of K 2(M=Zn, Hg; mnt=1,2 dicyanoethene 1,2 dithiolate, c 2S 2(cN) 2- 2) were studied and novel complexes [K(18 c 6)] 2[Zn(mnt) 2](1) and [K(18 c 6)] 2[Hg(mnt) 2](2) were characterized by elemental analysis, Ir spectrum and X ray diffraction analysis. complex 1 displays a one dimensional chain of [K(18 c 6)] 2[Zn(mnt) 2] bridged by K O interactions between adjacent [K(18 c 6)] + units. complex 2 is also a one dimensional chain of [K(18 c 6)] 2[Hg(mnt) 2] bridged by K...S weak interactions between adjacent [K(18 c 6)] + and [Hg(mnt) 2] 2- .

关键词： One dimensional chain crown ether mnt complex 18 crown 6 crystal structure

Synthesis, Structure and Third-order Non-linear Optical properties of Tungsten Dioxo complex with 8-Hydroxyquinoline Ligand WO_2(c_9H_6NO)_2

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chemical research in chinese Universities 2004年第6期20卷 681-684页

作者： LIYong LUJing XUJi-qing cUIXiao-bing SUNYing-hua LIKe-chang YANGQing-xin pANLing-yun BIEHai-ying StateKeyLaboratoryofInorganicSynthesisandpreparativechemistry CollegeofChemistryJilinUniversityChangchun130023P.R.China StateKeyLaboratoryofInorganicSynthesisandpreparativechemistry CollegeofChemistryJilinUniversityChangchun130023P.R.China／CollegeofPhysicsJilinUniversityChangchun130023P.R.China collegeofphysics JilinUniversityChangchun130023P.R.China

Tungsten dioxo complex WO 2(c 9H 6NO) 2 was obtained via the low temperature solid-state reaction of(NH 4) 2WS 4, 8-hydroxyquinoline(8-hq) and(cH 3) 4NI, and it was characterized by means of elemental analyses, Ir spectroscopy and X-ray diffraction analysis. The crystal of the title compound belongs to monoclinic, space group c2/c, with the crystal cell parameters: a=1.3316(3) nm, b=0.94444(19) nm, c=1.3485(3) nm, β=109.66(3)°, V=1.5970(6) nm 3, Z=6. The title compound possesses a supramolecular structure formed through hydrogen bonds and π-π stacking interactions. The third-order non-linear optical(NLO) properties of the title compound were also investigated. The third-order non-linear absorption coefficient α 2 and refractive index n 2 are 0.85×10 -11 m/W -1 and -1.5×10 -19 m 2/W, respectively. The third-order non-linear susceptibility χ (3) is 3.03×10 -13 esu for 3.8×10 -5 mol/L sample concentration.

关键词： Tungsten dioxo complex Solid state reaction Supramolecular structure Third-order non-linear optical property

Electrochemical Behavior of Mitoxantrone and Its Determination at a pt/c Implanted Modified Microelectrode

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chemical research in chinese Universities 2004年第1期20卷 103-107页

作者： QIANYong-gui SUNZi-jie HUJing-bo LUYi-qiang LIQi-long Departmentofchemistry BeijingNormalUniversityBeijing100875P.R.China Departmentofchemistry BeijingUniversityofScienceandTechnologyBeijing100083P.R.China

In a 0.02 mol/L Na_2HpO_4-KH_2pO_4(pBS) buffer solution(pH=6.82), the electrochemical behavior of mitoxantrone was studied by linear-sweep voltammetry and cyclic voltammetry at a pt/c ion implantation modified microelectrode. A sensitive reduction peak was observed. The peak potential was \{-0.72 V\}(***), the peak current was proportional to the concentration of mitoxantrone within the ranges of 7.0×10 -8—9.0×10 -7 mol/L and 1.0×10 -6—2.4×10 -5 mol/L, with a detection limit of 4.0×10 -8 mol/L. The linear correlation coefficients were 0.9994 and 0.9992, respectively. This method has been applied to the direct determination of mitoxantrone in simulated urine. The recoveries were in the range from 96.2% to 105.9%. The reduction process was a quasi-reversible one with adsorptive characteristics at the pt/c microelectrode. The electrode reaction rate constant k_s and the electron transfer coefficient α of the system were determined to be 4.5 and 0.65 s -1, respectively. The experiments showed that pt element had surely been implanted into the surface of the carbon fiber, and the atomic pt improved the electrocatalytic activity. The pt/c microelectrode had a good stability and reproducibility.

关键词： Mitoxantrone Electrochemical behavior Ion implantation Modified microelectrode

Ultrasensitive Detection of Hepatitis c Virus DNA Subtypes Based on cucurbituril and Graphene Oxide Nano-composite

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chemical research in chinese Universities 2020年第2期36卷 307-312页

作者： JIANG ping LI Yifei JU Ting cHENG Wenbo XU Jianhua HAN Kun University of Science and Technology of china Hefei 230027P.R.China c/LS Key Lab of Bio-medical Diagnostics Suzhou Institute of Biomedical Engineering and TechnologyChinese Academy of SciencesSuzhou 215163P.R.China University of chinese Academy of Sciences Beijing 100049P.R China Institute of Optics and Electronics Chengdu 610209P.R.China Laboratory of Oncology Science and Molecular Biology Shunde Hospital of Guangzhou University of Chinese MedicineFoshan 528333P.R.China

Infectious of hepatitis c viruses(HcVs)lead to hepatic fibrosis,cirrhosis even *** rapid and sensitive diagnostic method for HcV is of great *** on the host-and-guest interaction between cucurbit[7]uril(cB[7])and methylene blue(MB),a cB[7]-graphene nano-composite(cB[7]-N3-GO)is raised for the electrochemical detection of HcV *** method is able to linearly detect the HcV nucleic acid in the range of 0.2—10 nmol/L with detection limit as low as 160.4 pmol/*** proposed detection strategy is able to discriminate the lb and 6k subtypes of HcV and has a prospective potential in the blood screen for HcV in clinical diagnosis.

关键词： Hepatitis c virus cucurbituril Graphene Nano-composite Assay

GENETIc VArIATION IN pArTHENOGENETIc ArTEMIA FrOM THE SHANDONG pENINSULA, p.r.c.

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Journal of Oceanology and Limnology 1988年第2期6卷 179-185页

作者：赵钰琪刘新李明仁 Dept. of Zoology Oregon State University corvallis Or U.S.A. Dept. of Fisheries Shandong college of Oceanology Qingdao p.r.c.

results are presented of a survey of isozyme frequencies in parthenogenetic Artimia from six salterns in the Shandong peninsula, p.r.c. Three of the eleven enzymes we scored using polyacryamide gel electrophoresis proved to be useful for analysis of electromorph frequency variation. These enzymes are tetrazolium oxidase (TO), lactate dehydrogenase (LDH), and malate dehydrogenase (MDH). Each of these systems showed extensive isozyme variation both within and between salterns. In addition, we have examined the possibility that electromorph frequencies may vary as the result of natural selection for adaptation to specific salinity, or salinity-associated environmental conditions. An indication of clinal variation was found in two series of ponds differing in salinity, however more extensive data are needed before it is possible to conclude that these patterns are the result of natural selection. Finally, the use of isozyme analyses such as ours, for unraveling taxonomic problems in Anemia, is discussed.

关键词： GENETIc VArIATION IN pArTHENOGENETIc ArTEMIA FrOM THE SHANDONG pENINSULA p.r.c

FrEUD-BUTZEr-HAHN TYpE QUANTITATIVE THEOrEMS FOr prOBABILISTIc rEprESENTATIONS OF(c_0)OpErATOr SEMIGrOUpS

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Analysis in Theory and Applications 1993年第3期9卷 1-8页

作者： chen Wenzhong (Xiamen University china)Zhou Mi (Xiamen Fisheries college,china) 1. Department of Mathematics Xiamen University 361005 Xiamen P.R.C.2. Xiamen Fisheries College 361021 Xiamen P.R.C.

In this paper,we shall exploit the Freud method in the classical operator approximation theory to im- prove known quantitative estimalions with an emphasis on calculah' on the generic constants.

关键词： Th FrEUD-BUTZEr-HAHN TYpE QUANTITATIVE THEOrEMS FOr prOBABILISTIc rEprESENTATIONS OF c0)OpErATOr SEMIGrOUpS

c-L METHOD AND ITS AppLIcATION TO ENGINEErING NONLINEAr DYNAMIcAL prOBLEMS

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Applied Mathematics and Mechanics(English Edition) 2001年第2期22卷 144-153页

作者： cHEN Yu-shu(陈予恕) DING Qian(丁千) Department of Mechanics Tianjin University Tianjin 300072 P R China Department of Mechanics Tianjin University Tianjin 300072 P R China

The c-L method was generalized from Liapunov-Schmidt reduction method, combined with theory of singularities, for study of non-autonomous dynamical systems to obtain the typical bifurcating response curves in the system parameter spaces. This method has been used, ar an example, to analyze the engineering nonlinear dynamical problems by obtaining the bifurcation programs and response curves which are useful in developing techniques of control to subharmonic instability of large rotating machinery.

关键词： c-L method nonlinear dynamics nonlinear oscillations bifurcation and chaos

Tracial Limit of c^＊-algebras

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Acta Mathematica Sinica,English Series 2003年第3期19卷 535-556页

作者： ShanWenHU HuaXinLIN YiFengXUE DepartmentofMathematics EastChinaNormalUniversityShanghai200062P.R.China DepartmentofMathematics EastChinaUniversityofScienceandTechnologyShanghai200237P.R.China

A new limit of c*-algebras, the tracial limit, is introduced in this paper. We show that a separable simple c*-algebra A is a tracial limit of c*-algebras in I^(k) if and only if A has tracial topological rank no more... 详细信息

关键词： Tracial limit Tracial topological rank

Design and realization of a novel multitask TT&c operation pattern

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Journal of Systems Engineering and Electronics 2008年第6期19卷 1243-1249页

作者： Yang Yongan Han Minzhang Feng Zuren Fan Henghai Bai Jian Xi'an Jiaotong Univ. Xi'an 710049 P. R. China Xi'an Satellite control center Xi'an 710043 P. R. China

With the sharp increase of china＇s in-orbit spacecraft and the constraint TT＆c resources, a mathematical model for optimal TT＆c resource allocation is proposed, and the TT＆c facility remote monitoring function is designed to achieve the multitask operation pattern under the unified management of the network management center. With this pattern, the TT＆c network management and the spacecraft management are separated, which is quite different from the previous pattern. Further, a novel spacecraft TT＆c technique based on spacecraft control language is developed, and the telecommanding pattern is designed to address the spacecraft operation problems. The engineering application shows that this pattern fundamentally improves the TT＆c network capability, increases the resource efficiency, and satisfies the efficient, accurate, and flexible operation of spacecraft.

关键词： spacecraft TT&c network multitask TT&c administration design and realization.