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Chemical Research in Chinese Universities 2011年第3期27卷 354-357页

作者： wang jind liu zhao-qing su ting-ting School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 P. R. China

The hydrothermal reaction of Zn（NO3）2·4H2O, cyclohexane-1,2,3,4,5,6-hexacarboxylic acid hydrate （H6LI·H2O, cis-conformation LI： a,e,a,e,a,e） and 2,2＇-bpy yielded a new coordination polymer [Zn2（H2LII）（2,2＇-bpy）]·2H2O（trans-conformation LII： e,e,e,e,e,e）, which was characterized by single-crystal X-ray diffraction, elemental analysis, IR and XRPD（X-ray powder diffraction）. This complex crystallized in the triclinic system, with P1 space group and parameters a=0.66922（5） nm, b=0.97291（8） nm, c=1.22184（9） nm, α=99.0020（10）°, β=99.1300（10）°, γ=99.1910（10）°, V= 0.76176（10） nm3 and Z=2. The structure is a three-dimensional supramolecular network based on linear coordination chains through π-π stacking and hydrogen bonding interactions. The confromation of the starting ligand H6LI transfromed to the H2LII. The complex emits strong luminescence at room temperature.

关键词： Coordination polymer Cyclohexane-1 2 3 4 5 6-hexacarboxylate Conformation Luminescent property

Physical layer security of underlay cognitive radio using maximal ratio combining

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Frontiers of Information Technology & Electronic Engineering 2016年第9期17卷 929-937页

作者： Hui zhao Dan-yang wang Chao-qing TANG Ya-ping liu Gao-feng PAN ting-ting LI Yun-fei CHEN School of Electronic and Information Engineering Southwest University School of Electrical & Electronic Engineering Newcastle University School of Mathematics and Statistics Southwest University School of Engineering University of Warwick

We investigate the secrecy outage performance of maximal ratio combining(MRC) in cognitive radio networks over Rayleigh fading channels. In a single-input multiple-output wiretap system, we consider a secondary user(su-TX) that transmits confidential messages to another secondary user(su-RX) equipped with M(M ≥ 1)antennas where the MRC technique is adopted to improve its received signal-to-noise ratio. Meanwhile, an eavesdropper equipped with N(N ≥ 1) antennas adopts the MRC scheme to overhear the information between su-TX and su-RX. su-TX adopts the underlay strategy to guarantee the service quality of the primary user without spectrum sensing. We derive the closed-form expressions for an exact and asymptotic secrecy outage probability.

关键词： Cognitive radio networks Maximal ratio combining Secrecy outage probability Single-input multiple-output

Hierarchy and subsurface correlation of muddy baffles in lacustrine delta fronts： a case study in the X Oilfield, subei Basin, China

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Petroleum Science 2018年第3期15卷 451-467页

作者： Kun Qi Xiao-Ming zhao Li liu Yi-qing su Hua wang Cheng-Peng Tan Yi-ting sun State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu 610500 Sichuan China School of Geoscience and Technology Southwest Petroleum University Chengdu 610500 Sichuan China School of Geoscience Yangtze University Wuhan 430100 Hubei China PetroChina Southwest Oil and Gasfield Company Chengdu 610500 Sichuan China

Muddy baffles are one of the major geological factors controlling the underground fluid flow as well as the remaining oil distribution. This study used detailed drilling data from the E1f1 reservoir in the X Oilfield, subei Basin, China, to investigate the hierarchical muddy baffles developed on lacustrine delta fronts and their precise cross-well *** to the theories on allogenic and autogenic cycles as well as the genesis and scales of muddy baffles, five orders of muddy baffles were classified, which provided various degrees of difficulty when attempting interwell correlation. Under the guidance of a reliable stratigraphic model, the precise cross-well correlation of muddy baffles could be achieved and the key point of establishment of this stratigraphic model was to calculate foreset angles of hierarchical muddy baffles during deposition. During calculation, the relationships between sediment flow direction, higher-order strata dipping direction,well types and well trajectory direction should all be taken into consideration and some other angles（referred to here as θ1,θ2 and θ3） should also be measured. such new methods of cross-well correlation for hierarchical muddy baffles could greatly reduce the uncertainties and multiple solutions, which in turn would be significant for efficient development and oil recovery enhancement in the reservoirs.

关键词： Delta front muddy Baffle Genetic analysis Hierarchy division Strata correlation

First-principles calculation of Aun@(ZnS)(42)(n=6-16)hetero-nanostructure system

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Rare Metals 2020年第10期39卷 1165-1173页

作者： Han-Yue zhao qing liu Xiao-Xu wang Jin-Rong Huo Lu Li Ping Qian Yan-Jing su Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Department of Physics University of Science and Technology BeijingBeijing 100083China Corrosion and Protection Center Key Laboratory for Environmental Fracture(MOE)University of Science and Technology BeijingBeijing 100083China

The structure stability and electronic and optical properties of a series of Au@ZnS core-shell nanocomposites with different sizes were investigated theoretically by first-principle calculation based on density functional theory(DFT).A series of Aun@(ZnS)(42)structures with different n values from 6 to 16 were optimized and *** on the core-shell interaction energy and second-order difference of total energy of these structures,it is found that Au(13)@(ZnS)(42)turns out to be the most stable *** on the model of Au(13)@(ZnS)(42),the density of state and charge density difference were studied and provided a deeper understanding of the electronic structures of Au@*** the other hand,absorption coefficient and dielectric function were investigated to study the optical *** is found that an optical absorption peak appears in visible-light region,indicating that the photo-catalytic can be improved prominently due to the optical redshift to visible-light region when forming core-shell structure from ZnS *** the redshift phenomenon accords well with ***,the electronic structure further confirms the existence of redshift of optical absorption spectrum.

关键词： Core-shell structure Density functional theory(DFT) Electronic structure Optical properties Redshift phenomenon

Design,synthesis and characterization of novel biodegradable macrodiols based on poly(DL-lactic acid) and poly(p-dioxanone)

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Chinese Chemical Letters 2009年第6期20卷 743-746页

作者： Chan Yu Zhang Yan Feng Luo su Jun wang zhao liu Yuan Liang wang Zhi qing Liang College of Bioengineering Chongqing University Research Center of Bioinspired Material Science and Engineering (BIMSEC) Chongqing 400030 China Department of Gynecology and Obstetrics Southwest Hospital Third Military Medical University Chongqing 400038 China

Integrating poly（lactic acid）（PLA）, glycolic acid （GA） and ethylene glycol （EG） will hopefully result in a novel copolymer that combines such advantages as fastened and controllable release rate and improved flexibility together with good biocompatibility. In this study, p-dioxanone （PDO） was employed to copolymerize with DL-lactide （LA） via ring-opening melt polymerization using Sn（Oct）2 as an initiator and ethylene glycol as a co-initiator. The obtained degradable macrodiols （HO-P（LA-co-PDO）-OH） were just such a copolymer consisting of PLA, GA and EG. 1HNMR was employed to characterize the copolymers, and the effect of PDO/LA molar ratios in the feedstock on the molecular weights of HO-P（LA-co-PDO）-OH was investigated by means of endhydroxyl analysis, 1H NMR or GPC-MALLs. The results confirmed the successful synthesis of HO-P（LA-co-PDO）-OH and revealed that one end-hydroxyl of the micarodiols was donated by LA or PDO and the other one by the co-initiator EG. In addition, the molecular weights of HO-P（LA-co-PDO）-OH increased with decreasing PDO/LA ratios.

关键词： Macrodiol Poly(lactici acid) p-Dioxanone Ethylene glycol Drug delivery carder Bone morphogenetic protein

Advance in quality assessment of Chinese materia medica using microscopic and morphological methods

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Chinese Journal of Natural Medicines 2017年第9期15卷 653-663页

作者： MIAO Xiao-su CUI qing-Yu wang zhao-Yi liu Xiao-Na zhao An-Bang QIAO Yan-Jiang WU Zhi-Sheng Beijing University of Chinese Medicine Beijing 100102 China Key Laboratory of Traditional Chinese Medicine of information Engineering of State Administration Beijing 100102 China Binzhou Medical University Yantai 256603 China

Quality evaluation plays a vital role in ensuring safety and effectiveness of Chinese materia medica(CMM). Microscopic and morphological technologies can be used to distinguish CMM's characteristics, such as shape, size, texture, section, and smell, for authenticity and quality control of CMM. The microscopic and morphological applications of novel micro-technology, colorimeter, and texture analyzer for CMM identification are summarized and the future prospect is discussed in this paper. Various styles and complex sources of CMM are systemically reviewed, including cormophyte medicinal materials, fruit and seeds, pollen grain, and spore materials.

关键词： Chinese materia medica Micro-technology Colorimeter Texture analyzer

Effects of hydrogenation on ambient deformation behaviors of Ti-45Al alloy

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Transactions of Nonferrous Metals Society of China 2009年第S2期19卷 403-408页

作者： su Yan-qing liu Xin-wang zhao Long wang Liang GUO Jing-jie FU Heng-zhi School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China

Effects of hydrogenation on ambient deformation behaviors of Ti-45Al alloy were *** stress-strain curves demonstrate that the plastic deformation of the hydrogenated alloys becomes more remarkable than that of the unhydrogenated alloy. Meanwhile,the compression strength and maximum strain are *** the hydride and hydrogen atoms in the interstices affect the compression deformation *** reason of the hydrogen-induced embrittlement is that the hydride is easy to become the nucleus of the *** the variation of plastic deformation process is attributed to hydrogen-promoted emission,multiplication and motion of dislocation.

关键词： hydrogen TiAl alloy hydride dislocation fracture

Theoretical investigation of Ag_n@（ZnS）42（n=6-16） using first principles:Structural, electronic and optical properties

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Progress in Natural Science:Materials International 2019年第5期29卷 525-532页

作者： qing liu Hanyue zhao Xiaoxu wang Jinrong Huo Lu Li Panpan Gao Ping Qian Yanjing su Nanxian Chen Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology Beijing Department of Physics University of Science and Technology Beijing Corrosion and Protection Center Key Laboratory for Environmental Fracture (MOE) University of Science and Technology Beijing Department of Physics Tsinghua University

Ag@ZnS nanoparticles display enhanced photocatalytic efficiency and good photoelectric properties compared to their single-component counterparts in the process of forming a core-shell structure using an Ag cluster as the inner core of a ZnS outer *** this study,first-principles calculations were used to investigate the structural,electronic,and optical properties of Ag_n@（ZnS）42（n=6-16）core-shell *** calculated results show significant even-odd oscillations in the structural stability,that is,Ag@ZnS nanostructures with an even number of Ag_n core atoms are relatively more stable than those with an odd number of core *** secondorder differences in the total energies（Δ2E）and the core-shell interaction energy Ecsindicate that a Ag12@（ZnS）42nanostructure is the most stable configuration.A significant red shift was found in Ag_n@（ZnS）42nanoparticles in the absorption spectrum compared with a（ZnS）48nanostructure,which is likely attributed to the strong electron interactions between the Ag core and the ZnS shell.

关键词： Core-shell structure DFT Optical properties Red shift phenomenon Electronic structure

Design and synthesis of polyoxovanadate-based framework for efficient dye degradation

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Tungsten 2024年第2期6卷 447-453页

作者： qing Lan su-Juan Jin Zheng wang Xu-Yang Li Yan Xiong Zhuo-Cheng wang Shan-Shan liu Zhi-Ming Zhang Qiang zhao Engineering Technology Research Center of Henan Province for Solar Catalysis School of Chemical and Pharmaceutical EngineeringNanyang Normal UniversityNanyang 473061China Institute of New Energy Materials&Low Carbon Technology Tianjin University of TechnologyTianjin 300384China

A new polyoxovanadate-based framework material[Cu(en)_(2)]_(4)V_(18)O_(42)(H_(2)O)·6H_(2)O(1)was designed and synthesized by hydrothermal reaction of NaVO_(3),Cu(NO_(3))_(2)·6H_(2)O and 1,2-diaminoethane(en)via carefully adjusting the pH value of the reaction *** structure of the title compound has been determined by single-crystal X-ray diff raction analysis,thermogravimetric analysis,infrared spectra and elemental *** structural analysis demonstrate the three-dimensional(3D)framework structure of compound 1,which was composed of the[V_(18)O_(42)(H_(2)O)]_(8)−({V_(18)O_(42)(H_(2)O)})anions linked by the Cu^(2+)*** 1 represents the fi rst 3D framework based on{V_(18)O_(42)(H_(2)O)}polyoxoanions and copper ***-driven degradation of residual organic pollutants in industrial wastewater is still a major problem for human *** experiments reveal that compound 1 possesses of excellent photocatalytic activity for the degradation of methylene blue and rhodamine B.

关键词： Polyoxovanadate Framework Polyoxovanadate-based framework Photocatalytic Organic pollutants

Gastric metastasis from small cell lung cancer:A case report

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World Journal of Gastroenterology 2015年第5期21卷 1684-1688页

作者： Song Gao Xu-Dong Hu su-Zhen wang Ning liu Wei zhao qing-Xi Yu Wen-Hong Hou Shuang-Hu Yuan Department of Radiation Oncology Shandong Cancer Hospital and Institute School of Medicine and Life Sciences University of Jinan-Shandong Academy of Medical Sciences

Small cell lung cancer(SCLC) represents a group of highly malignant tumors that give rise to early and widespread metastases at the time of *** preferential metastatic sites are the brain,liver,adrenal glands,bone,and bone ***,metastases of the gastrointestinal system,especially the stomach,are rare; most cases of stomach metastasis are asymptomatic and,as a result,are usually only discovered at *** report a case of gastric metastasis originating from *** patient was a 66-year-old man admitted to our hospital due to abdominal *** underwent gastroscopy,with the pathological report of the tissue biopsy proving it to be a small cell *** was positive for CD56,synaptophysin,and *** results confirmed the diagnosis of gastric metastasis of a neuroendocrine small cell carcinoma from the lung.

关键词： Gastric metastasis Small cell lung cancer Immunohi