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Chinese Journal of Structural Chemistry 2000年第3期19卷 181-186页

作者： wanG Geng ZHOU Zhao-hui ZHANG hui YE Jian-Liang wan hui-lin Department of Chemistry and State Key Laboratory for Physical Chemistry of Solid Surface Xiamen UniversityXiamen361005

The sodium potassium citrato oxotungstate(VI) dimer, Na 4K 2〔W 2O 5\|(cit) 2〕·11H 2O (H 4cit = citric acid) was obtained by the reaction of sodium tungstate(VI) and excess potassium citrate monobasic (KH 3cit) in neutral solution. The crystal data for the title compound: monoclinic, C 12 H 30 K 2Na 4W 2O 30 , M r =1192.21, space group P2 1/n, a=17.427(4), b=10.022(2), c=18.637(3) , β=92.62(1)°, V=3252(2)  3, Z=4, D c =2.435 g/cm 3, μ( Mo Kα )=76.38 cm -1 , F( 000)=2288. The structure was refined to R =0.0434 for 6327 independent observed reflections with I>3σ(I) . The complex anion contains a quasi centrosymmetric (O 2W)O b(WO 2) core with a bent bridging oxo group 〔W-O b-W 175.0(4)°〕. Each citrate as tridentate ligand coordinates to a tungsten atom through the alkoxy, α carboxyl, and one β carboxyl group, while the other β carboxyl group remains uncoordinated. Principal dimensions are: W-O b 1.883(6) , (W=O t)av 1.715(6) , W-O (alkoxy) 1.959(6) , W-O ( α carboxy) 2.176(6)  and W-O ( β carboxy) 2.231(6) . The tungsten atom is located in a distorted octahedron environment.

关键词： oxotungstate(VI) citrate citric acid citrate method crystal structure

Synthesis and Structure of（NH4）₂ [V2O₄（OCH₂COO）₂]

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Chemical Research in Chinese Universities 1994年第2期10卷 102-106页

作者： Zhou, Zhao-hui wang, Jin-zhi wan, hui-lin Tsai, Khi-rui

imeric ammonium(glycollate)dioxovanadium (NH4)2[V2O4(OCH2COO )2]has been prepared. The complex crystallizes in triclinic space group Pl with unitcell parameters: a = 0. 6124(1)nm, b= 0. 6952 (1)nm, c= 0. 8449 (1)nm, α=66. 08 (1),β=64. 21(1),γ= 78. 01(1)°V=0. 2958 nms, Z=1, R=0. 041. Thedimer contains a quasicentrosymmetric planar four-membered V2O2 ring with twoexocyclic glycollate entities coordinated by the oxygen atoms of hydroxy- and car-boxy late ligands .

关键词： Hydroxycarboxylate Vanadium complex Molecular structure

Effective VTeO/SBA-15 Catalyst Prepared by Precursor Method for the Selective Oxidation of Propane to Acrolein

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Chemical Research in Chinese Universities 2008年第6期24卷 793-797页

作者： FENG Mao-ying HUANG Chuan-jing WENG Wei-zheng wan hui-lin XU Qin ZHOU Zhao-hui College of Chemistry and Chemical Engineering State Key Laboratory for Physical Chemistry of Solid Surface National Engineering Laboratory for Green Chemical Productions of Alcohols Ethers and Esters Xiamen University Xiamen 361005 P. R. China

Precursor decomposition was used for the preparation of VTeO/SBA-15 catalyst for the selective oxidation of propane to acrolein. The catalyst shows a better performance compared with those prepared by conventional impregnant method. A yield of 9.3% of acrolein was achieved with 2% V loadings at 500 ℃. XRD, N2-adsorption, H2-TPR, Py-IR and XPS measurements were used to unclose the relationship between the structure and performance of the catalyst.

关键词： Acrolein Propane Vanadium catalyst Precursor decomposition

Enantioselective Transfer Hydrogenation of Aromatic Ketones Catalyzed by New Diaminodiphosphine Ru(Ⅱ) Complexes

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Chemical Research in Chinese Universities 1998年第3期14卷 118-121页

作者： XU Pian-pian GAO Jing-xing YI Xiao-dong HUANG You-qing ZHANG hui wan hui-lin TSAI Khi-rui Ikariya Takao Department of Chemistry State Key Laboratory for Physical Chemistry of Solid Surface and Institute of Physical ChemistryXiamen Univer sityXiamen361005 Department of Chemical Engineering􂀠 Faculty of EngineeringTokyo Institute of Technology2-12-1O-okayamaMeguro-kuToyotoJapan

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Ｃｈｉｒａｌｂｉｐｈｏｓｐｈｉｎｅｌｉｇａｎｄｓｐｒｏｖｉｄｅａｕｓｅｆｕｌｔｏｏｌｆｏｒｐｒｅｐａｒｉｎｇｏｐｔｉｃａｌｙａｃｔｉｖｅｓｅｃｏｎｄａｒｙａｌｃｏｈｏｌｓａｎｄｈａｖｅｂｅｅｎｔｈｅｉｎｔｅｒｅｓｔｉｎｇｓｕｂｊｅｃｔｏｆｎｕｍｅｒｏ...

关键词： Chiral ligand Ruthenium complex Asymmetric transfer hydrogenation

Metabolomic Analysis in Saliva and Different Brain Regions of Older Mice with Postoperative Delirium Behaviors

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Biomedical and Environmental Sciences 2024年第2期37卷 133-145页

作者： LIU Xiao CAO Ying lin Xiao wan GAO Dan Yang MIAO hui hui LI Tian Zuo Department of Anesthesiology Beijing Shijitan HospitalCapital Medical UniversityBeijing 100038China

Objective Postoperative delirium(POD)has become a critical challenge with severe consequences and increased incidences as the global population ***,the underlying mechanism is yet *** study aimed to explore the changes in metabolites in three specific brain regions and saliva of older mice with postoperative delirium behavior and to identify potential non-invasive *** Eighteen-month-old male C57/BL6 mice were randomly assigned to the anesthesia/surgery or control *** tests were conducted 24 h before surgery and 6,9,and 24 h after *** C3(C3)and S100 calcium-binding protein B protein(S100beta)levels were measured in the hippocampus,and a metabolomics analysis was performed on saliva,hippocampus,cortex,and amygdala *** In total,43,33,38,and 14 differential metabolites were detected in the saliva,hippocampus,cortex,and amygdala,respectively.“Pyruvate”“alpha-linolenic acid”and“2-oleoyl-1-palmitoy-snglycero-3-phosphocholine”are enriched in one common pathway and may be potential non-invasive biomarkers for *** changes were observed in the three brain regions,with the upregulation of 1-methylhistidine and downregulation of *** Dysfunctions in energy metabolism,oxidative stress,and neurotransmitter dysregulation are implicated in the development of *** identification of changes in the level of salivary metabolite biomarkers could aid in the development of noninvasive diagnostic methods for POD.

关键词： Metabolomic Postoperative delirium(POD) Mechanism Biological marker

IN　situ　Confocal　Microprobe　Raman　Spectroscopic　Studies　on　Defective　La-based　Complex　Oxides

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Chemical Research in Chinese Universities 1997年第3期13卷 249-255页

作者： CHEN Du-hui, CAI Jun-xiu , LIAO Yuan-yian , wan hui-lin (Chemistry Department of Xiamen University, State Key Laboratory of Physical Chemistry for Solid Surface,Xiamen, 361005 ) XIAMEN UNIV DEPT CHEMSTATE KEY LAB PHYS CHEM SOLID SURFACEXIAMEN 361005PEOPLES R CHINA

The adsorption of O2 over defective La2O3-based OCM catalysts with anionic vacancies , and the reaction of surface oxygen species with CH4 were studied by means of in situ confocal microprobe Raman spectra. The partially reduced oxygen species O2, O , O (Oling of methane,while at higher temperature. the superoxide O2 and lattice oxygen species O2-are rather important. It is easier for fluoride-containing La2O3-based catalysts to induce the oxygen species with fewer negative charges and the basicity of the cat- alyst surface is weakened , so that the C2 selectivity for OCM reaction is improved.

关键词： Methane oxidative coupling Oxygen adspecies Defective La2O3-based

The　Active　Oxygen　Species　for　Oxidative　Coupling　of　Methane　over　CeO_2/BaF_2　Catalyst　by　in　Situ　Confocal　Microprobe　Raman　Spectroscopy

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Chemical Research in Chinese Universities 1997年第1期13卷 93-95页

作者： LONG Rui qiang and wan hui lin (Department of Chemistry and State Key Laboratory for Physical Chemistry of the Solid Surface, Xiamen University, Xiamen, 361005) XIAMEN UNIV DEPT CHEMXIAMEN 361005PEOPLES R CHINA XIAMEN UNIV STATE KEY LAB PHYS CHEM SOLID SURFACEXIAMEN 361005PEOPLES R CHINA

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ＴｈｅＡｃｔｉｖｅＯｘｙｇｅｎＳｐｅｃｉｅｓｆｏｒＯｘｉｄａｔｉｖｅＣｏｕｐｌｉｎｇｏｆＭｅｔｈａｎｅｏｖｅｒＣｅＯ２／ＢａＦ２ＣａｔａｌｙｓｔｂｙｉｎＳｉｔｕＣｏｎｆｏｃａｌＭｉｃｒｏｐｒｏｂｅＲａｍａｎＳｐｅｃｔｒｏｓｃｏｐｙ＊＊Ｓｕｐｐｏｒｔｅ...

关键词： Oxygen species Oxidative coupling Methane In situ Raman spectroscopy

The Active Sites of the Reference Phase of SmVO_4 as Catalyst for Propane Oxidative Dehydrogenation

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Chemical Research in Chinese Universities 1998年第3期14卷 72-74页

作者： ZHANG Wei-de AU Chak-tong LI Ji-tao wan hui-lin Department of Chemistry and State Key Laboratory for Physical Chemistry of Solid Surface Xiamen UniversityXiamen361005 Department of Chemistry Hong Kong Baptist UniversityHong Kong

The active sites of samarium orthovanadate(SmVO 4) were studied by means of ESR, NO TPD and temperature programmed 18 O 2 isotope exchange(TPIE) methods. The results of ESR and NO TPD confirm the presence of V 4+ in the catalyst. The TPIE revealed that the 18 O 2 isotope exchange was carried out through a single exchange procedure. The V 4+ species associated with oxygen vacancies are the sites for O 2 activation.

关键词： Samarium orthovanadate Active site V 4+ species Oxidative dehydrogenation

Microstructure evolution and mechanical properties of brazing joint for ultra-thin-walled Inconel 718 considering grain size effect and brazing temperature

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Chinese Journal of Aeronautics 2024年第2期37卷 541-556页

作者： Rui ZHAO Yueshuai SONG hui KANG Min wan School of Mechanical Engineering and Automation Beihang UniversityBeijing 100191China Jiangxi Research Institute of Beihang University Jiangxi 330000China

The systematic investigation of the mechanical properties and microstructure evolution process of ultra-thin-walled Inconel 718 capillary brazing joints is of great significance because of the exceptionally high demands on its *** achieve this objective,this study investigates the impact of three distinct brazing temperatures and five typical grain sizes on the brazed joints’mechanical properties and microstructure evolution *** evolution analysis was conducted based on Electron Back Scatter Diffraction(EBSD),Scanning Electron Microscopy(SEM),X-Ray Diffraction(XRD),High-Resolution Transmission Electron Microscopy(HRTEM),and Focused Ion Beam(FIB).Besides,the mechanical properties and fracture behavior were studied based on the uniaxial tension tests and in-situ tension *** findings reveal that the brazing joint’s strength is higher for the fine-grain capillary than the coarse-grain one,primarily due to the formation of a dense branch structure composed of G-phase in the brazing *** effects of grain size,such as pinning and splitting,are amplified at higher brazing ***,micro-cracks initiate around brittle intermetallic compounds and propagate through the eutectic zone,leading to a cleavage fracture *** fracture stress of fine-grain specimens is higher than that of coarse-grain due to the complex micro-crack ***,this study contributes significantly to the literature by highlighting the crucial impact of grain size on the brazing properties of ultra-thin-walled Inconel 718 structures.

关键词： EYWORDS Ultra-thin-walled structure Brazing Inconel 718 Grain size effect Brazing temperature

RIOK1 synergizes with TRIP13 by regulating the E2F-Rb signaling pathway to promote the proliferation of esophageal cancer cells

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Genes & Diseases 2024年第3期11卷 55-58页

作者： Chengyu Li Deyuan Pan wan lin Danxia Deng Yingxin Zhou hui Zhao Feng Pan Liyan Xu Enmin Li lin Long The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area Department of Biochemistry and Molecular BiologyShantou University Medical CollegeShantouGuangdong 515041China Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology Institute of Oncologic PathologyShantou University Medical CollegeShantouGuangdong 515041China Institute of Basic Medical Science Cancer Research CenterShantou University Medical CollegeShantouGuangdong 515041China Clinical Research Center Shantou Central HospitalShantouGuangdong 515041China

Esophageal cancer is one of the leading causes of cancer death in the world,with approximately half of the new cases occurring in China every year.^(1)Esophageal squamous cell carcinoma(ESCC)is the main subtype,accounting for more than 90%,and the five-year survival rate is less than 10%.Using large-scale genome analysis,many driver mutations and key pathways associated with ESCC have been ***,these genomic signatures have not improved the clinical management of EscC patients,or established effective targeted therapy.^(2)Esophageal cancer still lacks representative molecular markers.

关键词： cancer esophageal Esophageal