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Frontiers of Chemical Science and Engineering 2023年第1期17卷 68-81页

作者： Chuanhui li li-long zhang Hu li Song Yang State Key Laboratory Breeding Base of Green Pesticide&Agricultural Bioengineering Key Laboratory of Green Pesticide&Agricultural BioengineeringMinistry of EducationState-Local Joint Laboratory for Comprehensive Utilization of BiomassCenter for R&D of Fine ChemicalsGuizhou UniversityGuiyang 550025China

Benzimidazole derivatives have wide-spectrum biological activities and pharmacological effects,but remain challenging to be produced from biomass ***,we report a green hydrogen transfer strategy for the efficient one-pot production of benzimidazoles from a wide range of bio-alcohols and o-nitroanilines enabled by cobalt nitride species on hierarchically porous and recyclable nitrogen-doped carbon catalysts(Co/CN_(x)-T,T denotes the pyrolysis temperature)without using an external hydrogen source and base *** the tested catalysts,Co/CN_(x)-700 exhibited superior catalytic performance,furnishing 2-substituted benzimidazoles in 65%–92%*** mechanistic studies manifest that the coordination between Co^(2+)and N with appropriate electronic state on the porous nitrogen-doped carbon having structural defects,as well as the remarkable synergetic effect of Co/N dual sites contribute to the pronounced activity of Co/CN_(x)-700,while too high pyrolysis temperature may cause the breakage of the catalyst Co-N bond to lower down its ***,it is revealed that the initial dehydrogenation of bio-alcohol and the subsequent cyclodehydrogenation are closely correlated with the hydrogenation of nitro *** catalytic hydrogen transfer-coupling protocol opens a new avenue for the synthesis of N-heterocyclic compounds from biomass.

关键词： biomass conversion furanic compounds benzimidazoles hydrogen transfer bifunctional catalysis

Catalytic aquathermolysis of Shengli heavy crude oil with an amphiphilic cobalt catalyst

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Petroleum Science 2016年第3期13卷 463-475页

作者： Yan-Bin Cao long-li zhang Dao-Hong Xia State Key Laboratory of Heavy Oil Processing China University of Petroleum Research Institute of Petroleum Engineering and Technology Shengli Oilfield CompanySinopec

An interfacially active cobalt complex,cobalt dodecylbenzenesulfonate,was *** analysis,atomic absorption spectroscopy,Fourier transform infrared spectroscopy（FT-IR）,thermogravimetric analysis,and surface/interfacial tension determination were performed to investigate the properties of the *** showed that the synthesized catalyst showed active interfacial behavior,decreasing the surface tension and interfacial tension between heavy oil and liquid phase to below 30 and 1.5 mN/m,*** catalyst was not thermally degraded at a temperature of 400 ℃,indicating its high thermal *** performance of the catalyst was evaluated by carrying out *** viscosity determination showed that the viscosity of the heavy oil decreased by 38%.The average molecular weight,group compositions,and average molecular structure of various samples were analyzed using elemental analysis,FT-IR,electrospray ionization Fourier transform ion cyclotron resonance（ESI FT-ICR MS）,and ～1H nuclear magnetic *** indicated that the catalyst could attack the sulfur- and O_2-type heteroatomic compounds in asphaltene and resin,especially the compounds with aromatic structure,leading to a decrease in the molecular weight and then the reduction in the viscosity of heavy ***,the synthesized catalyst might find an application in catalytic aquathermolysis of heavy oil,especially for the high-aromaticity heavy oil with high oxygen content.

关键词： Interfacially active CoDBS Catalytic aquathermolysis Oxygen-contained groups Heavy oil

Spring Cold Bias of SST and Minimal Wind Mixing in the Equatorial Pacific Cold Tongue

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Atmospheric and Oceanic Science Letters 2010年第6期3卷 342-346页

作者： liN Peng-Fei liU Hai-long li Chao zhang Xue-Hong State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of AtmosphericPhysics Chinese Academy of Sciences Beijing 100029 China

The authors investigate the relationship between bias in simulated sea surface temperature （SST） in the equatorial eastern Pacific cold tongue during the boreal spring as simulated by an oceanic general circulation model （OGCM） and minimal wind mixing （MWM） at the surface. The cold bias of simulated SST is the greatest during the boreal spring, at approximately 3℃. A sensi- tivity experiment reducing MWM by one order of magnitude greatly alleviates cold biases, especially in March-April. The decrease in bias is primarily due to weakened vertical mixing, which preserves heat in the uppermost layer and results in warmer simulated SST. The reduction in vertical mixing also leads to a weak westward current in the upper layer, which further contributes to SST warming. These findings imply that there are large uncertainties about simple model parameters such as MWM at the oceanic surface.

关键词： cold biases the equatorial Pacific cold tongue the minimal wind mixing

Research on the slagging characteristics of blended coals in a pilot-scale furnace

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2015年第3期16卷 204-216页

作者： Hao ZHOU Le-tian li Hai-long zhang Bin ZHOU Institute for Thermal Power Engineering Zhejiang University Hangzhou 310027 China

This paper applies digital image techniques to observe the slagging characteristics of blended coals in a pilot-scale furnace. Collected deposit samples were analyzed by scanning electron microscopy linked with energy-dispersive X-ray analysis （SEM-EDX）, X-ray diffraction （XRD）, and X-ray Fluorescence （XRF） to acquire the microstructure, chemical composition, and mineralogy. The deposit thickness of three blends was analyzed between their parent coal A （Datong） and coal B （Shan）, and we noted that the time to reach a stable stage decreased with the ratio of coal B. The addition of coal A into coal B could remarkably restrained the growth and thickness of ash deposits. The results of XRD analysis indicated the initial layer was predominantly comprised of the crystalline minerals quartz, anorthite, or albite except for coal B. All of the blends and coals contained quartz and Ca- to Al-silicates （Ca0.68Na0.32）（All.68Si0.32）Si2O8 in the slag layer where iron-bearing minerals （e.g., ilvaite） were altered into an amorphous phase. The result of SEM-EDX suggested that there was an elemental disparity between the coal ash and deposit.

关键词： Blended coal Ash deposit Slagging Charge-coupled device (CCD) camera Mineralogy

Circulating leptin and adiponectin levels in patients with pancreatic cancer

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Chinese Medical Journal 2021年第17期134卷 2134-2136页

作者： Qi-Hang Yuan li-long zhang Yao Xu Xu Chen Biao zhang Lun-Xu li Shuang li Dong Shang Department of General Surgery The First Affiliated Hospital of Dalian Medical UniversityDalianLiaoning 116011China Department of Hepatobiliary and Laparoscopic Surgery Renmin Hospital of Wuhan UniversityWuhanHubei 430060China Department of Critical Care Medicine Research Institute of General SurgeryJinling HospitalNanjing University School of MedicineNanjingJiangsu 210093China Clinical Laboratory of Integrative Medicine The First Affiliated Hospital of Dalian Medical UniversityDalianLiaoning 116011China

To the Editor:The etiology and the pathogenesis of pancreatic cancer(PC)are poorly *** has long been recognized that various intertwined factors,including genetic susceptibility and environmental stimuli(such as cigarettes,diabetes mellitus,and adiposity),are potential risk factors for high morbidity and mortality in PC patients.[1]The regulatory role of adipokines in the pathogenesis of tumors remains *** has been generally accepted that obesity-related conditions increase susceptibility to various tumors,including *** patients with increased adiposity have a heightened risk for poorer prognosis and higher mortality,which suggests that the significance of obesity-related factors(ie,leptin and AdipoQ)in the onset and/or development of PC is becoming increasingly ***,circulating leptin and AdipoQ levels in PC compared with those in non-PC individuals remain ***,we sought to perform a meta-analysis to settle the issues in dispute.

关键词： patients mortality cancer

Unicity Theorems of Mesomorphic Functions with Three Weighted Sharing Values

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Chinese Quarterly Journal of Mathematics 2012年第1期27卷 110-116页

作者： WANG Xin-li CAO zhang-long College of Science University of Shanghai for Science and TechnologyShanghai 200093China

In this paper,with the idea of weighted sharing values,we deal with the problem of uniqueness of mesomorphic functions sharing three weighted *** obtain some theorems which improve the results of H X Yi and W R L.

关键词： mesomorphic functions weighted sharing values unicity theorem

A 30p Production Experiment being Planned at CRIB/CNS of University of Tokyo

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2009年第1期 64-65页

作者： Xu Shiwei He Jianjun Hu Jun Yu Xiangqing li long zhang liyong

Investigation of recystallization behavior of IF-steel using EBSD technique

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电子显微学报 2002年第5期21卷 727-728页

作者： li Bo long, zhang Ning, liU Qing (Department of Material Science and Engineering, Tsinghua university, Beijing 100084) Department of Material Science and Engineering Tsinghua university 北京 100084

The orientation nucleation behavior of γ fiber of IF steel was studied using high resolution electron back scattering diffraction (EBSD) technique during annealing. The γ fiber nucleation occurs in the deformation b... 详细信息

关键词： EBSD 电子背散射衍射技术 IF钢再结晶显微分析

基于DARPA模式的军工企业科技创新体系建设

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科技导报 2017年第15期35卷 40-44页

作者：王莉张龙中国电子科技集团公司电子科学研究院北京100041

深入分析中国新形势下科技创新体系建设机遇,借鉴美国国防高级研究计划局在创新文化、组织机构、项目管理等方面成功经验,针对当前制约军工企业科技创新发展的因素,提出了科技创新体系化构建思维模式,并通过建立创新特区探索适应新形势... 详细信息

深入分析中国新形势下科技创新体系建设机遇,借鉴美国国防高级研究计划局在创新文化、组织机构、项目管理等方面成功经验,针对当前制约军工企业科技创新发展的因素,提出了科技创新体系化构建思维模式,并通过建立创新特区探索适应新形势下科技创新管理机制,以期为军工企业科技创新体系构建提供借鉴与参考。

关键词： DARPA模式科技创新体系军工企业管理

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珠江口低盐透镜现象的声传播特性分析

海洋学研究 2019年第1期37卷 15-20页

作者：屈科莫龙影黎章龙广东海洋大学电子与信息工程学院

低盐透镜现象是珠江口陆架海域常见的一种中尺度现象,它的出现会影响水下声传播环境。利用南海北部陆架区的CTD资料分析了低盐透镜的结构特征,基于简正波和射线模型,建立二维波导环境,设置不同声源条件,对低盐透镜环境的声传播特性进行... 详细信息

低盐透镜现象是珠江口陆架海域常见的一种中尺度现象,它的出现会影响水下声传播环境。利用南海北部陆架区的CTD资料分析了低盐透镜的结构特征,基于简正波和射线模型,建立二维波导环境,设置不同声源条件,对低盐透镜环境的声传播特性进行了研究。结果表明:低盐透镜会在海水上层形成声道,距离15km处其传播损失较没有低盐透镜的情况小约15dB。虽然低盐透镜声道厚度通常较小,但是较大的盐度梯度可以保证声道对声能的有效传播。当频率高于截止频率的声源置于低盐透镜内,声道效应有助于声音的远距离传播。

关键词：珠江口低盐透镜传播损失声道