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Synthesis and Crystal Structure of Bisaqua-[N,N'-bis(3,5-dichlorosalicylidene)-1,3-diaminopropano]zinc(II)

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Chinese Journal of Structural Chemistry 2006年第9期25卷 1043-1046页

作者： YOU Zhong-Lu HAN xiao wang jia CHI Jing-Yun Department of Chemistry and Chemical Engineering Liaoning Normal University Dalian 116029 China

The title mononuclear zinc（Ⅱ） complex [Zn（BCDP）（H2O）2] （BCDP = N,N＇-bis（3,5dichlorosalicylidene）-1,3-diaminopropane） was prepared and characterized by elemental analysis, 1R spectra and single-crystal X-ray diffraction. The crystal belongs to the orthorhombic system, space group Pnma with a = 7.887（1）, b = 23.788（2）, c = 10.295（4） A, Z= 4, V= 1931.5（8） ,A^3, Dc = 1.786 g/cm^3, Mr = 519.49, λ（MoKa） = 0.71073 A, μ = 1.853 mm^-1, F（000） = 1048, R = 0.0464 and wR = 0.0918. A total of 2273 unique reflections were collected, of which 1570 with 1 〉 2σ（I） were observed. The molecule of the complex has crystallographic mirror symmetry. The Zn atom is sixcoordinated in an octahedral geometry. In the crystal, the molecules are linked through intermolecular O-H…O and O-H…Cl hydrogen bonds, forming chains running along the a axis.

关键词： Schiff base zinc crystal structure hydrogen bond

TRAFFIC EMISSION TRANSPORTATION IN STREET CANYONS

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Journal of Hydrodynamics 2009年第1期21卷 108-117页

作者： XIE xiao-min wang jia-song HUANG Zhen Key Laboratory for Power Machinery and Engineering of State Education Ministry Shanghai Jiao Tong University Shanghai 200240 China

Spatial distributions of traffic-related pollutants in street canyons were investigated by field measurements and Computational Fluid Dynamics （CFD）. Two typical street canyons were selected for field monitoring, and a three-dimensional numerical model was built based on Reynolds-averaged Navier-Stokes equations equipped with the standard κ-ε turbulence models for CFD simulations. The study shows that the pollutant concentrations of vehicle emission correlate well with the traffic volume variation, wind direction and wind speed. The wind direction and speed at the roof level determine overwhellmingly the flow field and the distributions of pollutant concentrations in the street canyon. When the wind speed is equal to zero, the pollutant concentrations on the breath height of the both sides of the street canyon are almost the same. When the wind direction is perpendicular to the street, one main vortex is formed with a shape depending on the building structure on both sides of the street, the pollutant is accumulated on the leeward side, and the pollutant concentrations at the breath height on the leeward side are 2 to 3 times as those at the breath height on the windward side. If the wind direction makes some angles with the street canyon, the pollutant concentration will be higher on the leeward side because one main vortex will also be formed in the vertical section of the canyon by the perpendicular component of the wind. But pollutant concentrations decrease in the canyon because pollutants are dispersed along the axis of the street. Pollutants at different heights of the vertical section decrease with height, i.e. there are concentration gradients in the vertical section, and the pollutant concentrations on the leeward side of the upstream building are much higher than those on the windward side of the downstream building.

关键词： traffic emission street canyon field measurement CFD modeling

Resilience assessment and optimization method of city road network in the post-earthquake emergency period

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Earthquake Engineering and Engineering Vibration 2024年第3期23卷 765-779页

作者： wang Haoran xiao jia Li Shuang Zhai Changhai Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information TechnologyHarbin Institute of TechnologyHarbin 150090China

The post-earthquake emergency period,which is a sensitive time segment just after an event,mainly focuses on saving life and restoring social *** improve the seismic resilience of city road networks,a resilience evaluation method used in the post-earthquake emergency period is *** road seismic damage index of a city road network can consider the influence of roads,bridges and buildings along the roads,*** road capacity after an earthquake.A function index for a city road network is developed,which reflects the connectivity,redundancy,traffic demand and traffic function of the *** optimization model for improving the road repair order in the post-earthquake emergency period is also developed according to the resilience evaluation,to enable decision support for city emergency management and achieve the best seismic resilience of the city road *** optimization model is applied to a city road network and the results illustrate the feasibility of the resilience evaluation and optimization method for a city road network in the post-earthquake emergency period.

关键词： city road network post-earthquake emergency period traffic demand resilience evaluation optimization model

重度肺动脉高压患者的左心室射血分数及NT-ProBNP与预后相关

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心脏杂志 2024年第2期36卷 171-175,181页

作者：肖家旺王建铭庚靖淞孟立立王忠超王琦光中国人民解放军北部战区总医院先心病内科、全军心血管病研究所辽宁沈阳110016

目的探讨重度肺动脉高压(PAH)患者超声心动图测量左心功能相关参数与预后的关系。方法回顾性分析2018年10月~2021年12月于中国人民解放军北部战区总医院先心病内科住院治疗的55例第一大类PAH患者(不包括艾森曼格综合征)及慢性血栓栓塞... 详细信息

目的探讨重度肺动脉高压(PAH)患者超声心动图测量左心功能相关参数与预后的关系。方法回顾性分析2018年10月~2021年12月于中国人民解放军北部战区总医院先心病内科住院治疗的55例第一大类PAH患者(不包括艾森曼格综合征)及慢性血栓栓塞性肺动脉高压。并依据随访中是否出现临床恶化事件分为临床恶化组(n=20)与无临床恶化组(n=35),采用单因素和多因素COX比例风险回归模型、Kaplan-Meier生存曲线分析重度PAH患者超声心动图测量左心功能参数与预后的关系。结果55例患者中有20例出现临床恶化事件,其中2例(4%)发生全因死亡,10例(18%)因PAH恶化再住院,8例(14%)治疗升级。与无临床恶化组相比,临床恶化组的右心室/左心室内径比值、右心室内径与LVEF更大(均P71%者及NT-ProBNP>724.5 pg/ml的临床恶化发生率均显著升高(均P<0.01)。结论超声心动图测量LVEF及NT-ProBNP可很好预测重度PAH患者的临床恶化事件发生率。

关键词：肺动脉高压超声心动图右心导管左心室射血分数

Synthesis and Crystal Structure of an Adipate-bridged Dinuclear Cadmium(Ⅱ)Polymer with 2-Methylpyrazino[2,3-f][1,10]-phenanthroline(mpphen)Terminal Ligands

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Chinese Journal of Structural Chemistry 2010年第7期29卷 1015-1020页

作者： CUI Yun-Cheng XU Yao-Yang HUANG Yan-Ju LIU Li-Hui LV Ming wang xiao-Mei wang jia-Jun Chemistry Department of Jilin Normal University Siping Jilin 136000 China

A metal-organic coordination polymer, [Cd（C15H10N4）（C6H8O4）]2n （1, C15H10N4： 2-methyl-pyrazino-[2,3-f][1,10]-phenanthroline （mpphen）, C6H8O4： adipate）, was synthesized via hydrothermal synthesis. The polymer was characterized by elemental analysis, IR, TG and single-crystal X-ray diffraction. X-ray diffraction shows that 1 is a cadmium polymer constructed by adipate-bridged dmuclear clusters, and each adipate connects two clusters to form a two-dimen- sional planar structure. Crystal data for 1： monoclinic, space group C2/c, a = 22.403（9）, b = 16.039（6）, c = 13.808（6） A, β= 125.262（6）°, V = 4051（3） A3, Mr = 502.79, Dc = 1.649 g/eraa, μ（MoKa） = 1.114 mm^-1, F（000） = 2016, Z = 8, the final R = 0.0509 and wR = 0.1054 for 1509 observed reflections （I 〉 2σ（I））.

关键词： 2-methyl-pyrazino[2,3-f] -phenanthroline Cd coordination polymer,hydrothermal synthesis crystal structure

Dynamic simulation of GEH-IES with distributed parameter characteristics for hydrogen-blending transportation

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Frontiers in Energy 2024年第4期18卷 506-524页

作者： Dengji ZHOU jiarui HAO wang xiao Chen wang Chongyuan SHUI Xingyun jia Siyun YAN Key Laboratory of Power Machinery and Engineering of the Ministry of Education Shanghai Jiao Tong UniversityShanghai 200240China Sichuan Research Institute Shanghai Jiao Tong UniversityChengdu 610042China West Pipeline Company National Petroleum and Natural Gas Pipe Network Group Co.Ltd.Urumqi 830012China Institute of Intelligent Manufacturing Modern Industry Xinjiang UniversityUrumqi 830046China

For the purpose of environment protecting and energy saving,renewable energy has been distributed into the power grid in a considerable ***,the consuming capacity of the power grid for renewable energy is relatively *** an effective way to absorb the excessive renewable energy,the power to gas(P2G)technology is able to convert excessive renewable energy into ***-blending natural gas pipeline is an efficient approach for hydrogen ***,hydrogen-blending natural gas complicates the whole integrated energy system(IES),making it more problematic to cope with the equipment failure,demand response and dynamic ***,dynamic simulation of distribution parameters of gas-electricity-hydrogen(GEH)energy system,especially for hydrogen concentration,still remains a *** dynamics of hydrogen-blending IES is *** tackle the issue,an iterative solving framework of the GEH-IES and a cell segment-based method for hydrogen mixing ratio distribution are proposed in this *** typical numerical cases studying the conditions under which renewables fluctuate and generators fail are conducted on a real-word *** results show that hydrogen blending timely and spatially influences the flow parameters,of which the hydrogen mixing ratio and gas pressure loss along the gas pipeline are negatively correlated and the response to hydrogen mixing ratio is ***,the hydrogen-blending amount and position also have a significant impact on the performance of the compressor.

关键词： gas-electricity IES dynamic simulation hydrogen blending power to gas(P2G) renewable energy

Nursing emergency management practice of COVID-19 in a traditional Chinese medicine hospital

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Journal of Integrative Nursing 2020年第2期2卷 68-72页

作者： Jing ZHANG jian-Hua DENG Ling TANG xiao-jia wang School of Nursing Beijing University of Chinese MedicineBeijingChina Department of Urology Dongfang Hospital of Beijing University of Chinese MedicineBeijingChina Department of Nursing Dongfang Hospital of Beijing University of Chinese MedicineBeijingChina Intensive Care Unit Dongfang Hospital of Beijing University of Chinese MedicineBeijingChina

Nursing work is an integral part of hospital *** the challenge of the COVID-19 epidemic,it is particularly important to establish a timely and efficient nursing management *** nursing department of our hospital used the theory and method of feedforward control to formulate the emergency plan for epidemic prevention and control and to conduct *** plan includes the establishment of the emergency management system for epidemic nursing and key prevention and control positions,rational allocation of human resources,and strengthening personnel training,so as to ensure the efficient operation of nursing epidemic prevention and control work and provide a reference for nursing management mode during the epidemic.

关键词： COVID-19 nursing emergency system nursing management personnel allocation traditional Chinese medicine hospital

Odorant receptor orthologues from moths display conserved responses to cis-jasmone

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Insect Science 2024年第4期31卷 1107-1120页

作者： xiao-Qing Hou Zhongqiang jia Dan-Dan Zhang Guirong wang Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureSynthetic Biology Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhenGuangdong ProvinceChina State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijingChina Department of Biology Lund UniversityLundSweden

In insects,the odorant receptor(OR)multigene family evolves by the birth-and-death evolutionary model,according to which the OR repertoire of each species has undergone specific gene gains and losses depending on their chemical environment,resulting in taxon-specific OR lineage radiations with different sizes in the phylogenetic *** the general divergence in the gene family across different insect orders,the ORs in moths seem to be genetically conserved across species,clustered into 23 major clades containing multiple orthologous groups with single-copy gene from each *** hypothesized that ORs in these orthologous groups are tuned to ecologically important compounds and functionally ***-Jasmone is one of the compounds that not only primes the plant defense of neighboring receiver plants,but also functions as a behavior regulator to various *** test our hypothesis,using Xenopus oocyte recordings,we functionally assayed the orthologues of BmorOR56,which has been characterized as a specific receptor for *** results showed highly conserved response specificity of the BmorOR56 orthologues,with all receptors within this group exclusively responding to *** is supported by the dN/dS analysis,showing that strong purifying selection is acting on this ***,molecular docking showed that the ligand binding pockets of BmorOR56 orthologues to cis-jasmone are *** together,our results suggest the high conservation of OR for ecologically important compounds across Heterocera.

关键词： cis-jasmone evolutionary conservation functional characterization molec-ular docking moths purifying selection

Sedimentary architecture of submarine channel-lobe systems under different seafloor topography:Insights from the Rovuma Basin offshore East Africa

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Petroleum Science 2024年第1期21卷 125-142页

作者： Mei Chen Sheng-He Wu Rui-Feng wang jia-jia Zhang Peng-Fei Xie Min wang xiao-Feng wang Ji-Tao Yu Qi-Cong Xiong State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing102249China College of Geosciences China University of Petroleum(Beijing)Beijing102249China Faculty of Geosciences University of BremenBremen28359Germany MARUM-Center for Marine and Environmental Sciences University of BremenBremen28359Germany Research institute of Petroleum Exploration and Development PetroChinaBeijing10083China School of Geosciences Yangtze UniversityWuhan 100083HubeiChina CNODC Mozambique Ltd. Beijing 100034China

Seafloor topography plays an important role in the evolution of submarine ***,it is still not so clear how the shape of slope affects the three-dimensional(3-D)architecture of submarine *** this study,we analyze the effect of topography factors on different hierarchical lobe architectures that formed during Pliocene to Quaternary in the Rovuma Basin offshore East *** characterize the shape,size and growth pattern of different hierarchical lobe architectures using 3-D seismic *** find that the relief of the topographic slope determines the location of preferential deposition of lobe complexes and single *** the topography is irregular and presents topographic lows,lobe complexes first infill these *** lobes are deposited preferentially at positions with higher longitudinal(***-slope)slope *** the longitudinal slope becomes higher,the aspect ratio of the single lobes ***(***-slope)topography does not seem to have a strong influence on the shape of single lobe,but it seems to affect the overlap of single *** the lateral slope gradient is relatively high,the single lobes tend to have a larger overlap ***,as the average of lateral slope and longitudinal slope gets greater,the width/thickness ratio of the single lobe is smaller,*** tend to accumulate *** results demonstrate that the shape of slopes more comprehensively influences the 3-D architecture of lobes in natural deep-sea systems than previously other lobe deposits and analogue experiments,which helps us better understand the development and evolution of the distal parts of turbidite systems.

关键词： Submarine fan Seafloor topography Sedimentary architecture Slope system SW Indian ocean