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Different Roles of a Boron Substitute for Carbon and Silicon in β-SiC

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Chinese Physics Letters 2012年第7期29卷 214-217页

作者： ZHOU Yan WANG Kun FANG Xiao-Yong HOU Zhi-Ling JIN Hai-Bo CAO mao-Sheng School of Science Yanshan UniversityQinghuangdao 066004 School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081

The first-principles numerical simulation is employed-to calculate the effect of replacement of carbon and silicon with boron on the electronic structure and optical properties of β-*** analysis shows that the B impurity bond lengths shrink in the case of Bsi,while they expand with reference to *** addition,Bsi contains C-C,Si-Si and B-Si *** calculated results show that the two systems of Bc and Bsi apply different *** is in accordance with the Lorentz dispersion theory while Bsi follows the Drude dispersion *** analysis and quantitative calculation are used for conductivity spectra in the infrared region.

关键词： dispersion analysis boron

PetroChina Implements QHSE Information System

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China Oil & Gas 2005年第3期12卷 46-48页

作者： mao Yaming Gao Yunsheng Environmental Monitoring of PetroChina Information Management Department of PetroChina

Quality, Health, Safety and Environmental （QHSE） management is an integral part of company management system. PetroChina Company Limited（PetroChina） has all along regarded QHSE business as the consistent standpoint of self-developing. One of its most important tasks is to safeguard its staff＇s health, take precautions against accidents and protect the environment. Nowadays, information system has been recognizing as one of the most magic way to enhance management through out in the world leading oil company. In order to build an effective HSE system easily to implement and maintain, in January 2004, PetroChina invited IBM to help on conducting a feasibility study for Health, Safety and Environment （HSE） system. In March 2005, PetroChina kicked off the pilot phase of first enterprise-wide QHSE software implementation project. A very comprehensive selection of Essential SuiteTM （ESS）, the fully integrated, browser-based solution by ESS has been chosen for the implementation. PetroChina is collaborating with IBM Global Services and ESS on the pilot project.

关键词：中国石油天然气股份有限公司信息化系统企业管理经营理念 QHSE 质量管理

Atmospheric environment monitoring technology and equipment in China:A review and outlook

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Journal of Environmental Sciences 2023年第1期123卷 41-53页

作者： Youwen Sun Ting Yang Huaqiao Gui Xin Li Weigang Wang Jun Duan Shushuai mao Hao Yin Bin Zhou Jianlei Lang Haijin Zhou Cheng Liu Pinhua Xie Key Laboratory of Environmental Optics and Technology Anhui Institute of Optics and Fine MechanicsHFIPSChinese Academy of SciencesHefei 230031China Department of Precision Machinery and Precision Instrumentation University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China State Key Laboratory for Structural Chemistry of Unstable and Stable Species Institute of ChemistryChinese Academy of SciencesBeijing 100190China Key Laboratory of Beijing on Regional Air Pollution Control College of Environmental&Energy EngineeringBeijing University of TechnologyBeijing 100124China Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3) Department of Environmental Science and EngineeringFudan UniversityShanghai 200438China Center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes University of Science and Technology of ChinaHefei 230026China Anhui Province Key Laboratory of Polar Environment and Global Change University of Science and Technology of ChinaHefei 230026China

Accurate monitoring of the atmospheric environment and its evolution are important for understanding the sources,chemical mechanisms,and transport processes of air pollution and carbon emissions in China,and for regulatory and control *** study gives an overview of atmospheric environment monitoring technology and equipment in China and summarizes the major achievements obtained in recent *** has made great progress in the development of atmospheric environment monitoring technology and equipment with decades of *** manufacturing level of atmospheric environment monitoring equipment and the quality of products have steadily improved,and a technical&production system that can meet the requirements of routine monitoring activities has been *** is expected that domestic atmospheric environment monitoring technology and equipment will be able to meet future demands for routine monitoring activities in China and provide scientific assistance for addressing air pollution problems.

关键词： Atmospheric pollution Atmospheric environment Atmospheric monitoring Environmental instrument

FLU OR FAUX?COVID-19 Is Not Your Annual Influenza,Here's Why

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城市漫步（上海版、英文） 2020年第4期 56-57页

作者： Dr.Harvey mao Vista-SK International Medical Center in Shenzhen

On March 11,the World Health Organization declared the COVID-19 outbreak a *** of that date,the new coronavirus had spread worldwide,with more than 118,000 confirmed cases in 114 countries and over 4,300 *** the added attention comes a demand for deeper and broader research into the disease,as many people-including some world leaders-still believe that COVID-19 is simply an enhanced form of *** put,it's not;although the two illnesses do share a lot in common.

关键词： cases COV simply

Predicting Bioaccumulation of Nanomaterials:Modeling Approaches with Challenges

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Environment & Health 2024年第4期2卷 189-201页

作者： Hang Zeng Zhuoyan Lv Xiaoyan Sun Yang Tong Wei Wu Shipeng Dong Liang mao State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentChemistry and Biomedicine Innovation CenterNanjing UniversityNanjing 210023China Nanjing Qixia District Hospital Nanjing 210023China High Tech Research and Development Center Ministry of Science and TechnologyBeijing 100044China

Understanding the bioaccumulation of nanomaterials(NMs)by organisms is essential in evaluating their potential ***,the experimental determination of bioaccumulation is substantially challenging,which spawned the development of prediction approaches via establishing models for various *** modeling approaches,such as the biotic ligand model(BLM),partition coefficients,accumulation factor models,and quantitative structure−activity relationship(QSAR)models,were initially used in the application of NMs,aiming to provide a reliable quantitative dose in a resource-saving *** methods,which are based on the uptake patterns of substances,probably lead to deviated results due to the different uptake behaviors of *** this study,currently developed models to evaluate the bioaccumulation of NMs are critically reviewed,with their feasibilities and limitations being *** addition,the recently developed machine learning amended models have taken great efforts in realizing biological behaviors of NMs in organisms by providing in silico *** this data-driven approach has limitations in mechanism exploration,it may give different insights into the bioaccumulation model establishment and critical feature identification.

关键词： Modeling Forecast Bioaccumulation Nanomaterials Machine learning

An Air‑Rechargeable Zn Battery Enabled by Organic–Inorganic Hybrid Cathode

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Nano-Micro Letters 2023年第4期15卷 138-152页

作者： Junjie Shi Ke mao Qixiang Zhang Zunyu Liu Fei Long Li Wen Yixin Hou Xinliang Li Yanan Ma Yang Yue Luying Li Chunyi Zhi Yihua Gao Wuhan National Laboratory for Optoelectronics(WNLO)and School of Physics Center for Nanoscale Characterization&Devices(CNCD)Huazhong University of Science and Technology(HUST)Wuhan 430074People’s Republic of China Guangxi Key Laboratory of Optical and Electronic Materials and Devices College of Materials Science and EngineeringGuilin University of TechnologyGuilin 541004People’s Republic of China Hong Kong Center for Cerebro-Cardiovascular Health Engineering Hong Kong SAR 999077People’s Republic of China Hubei Key Laboratory of Critical Materials of New Energy Vehicles and School of Mathematics Physics and Optoelectronic EngineeringHubei University of Automotive TechnologyShiyan 442002People’s Republic of China Information Materials and Intelligent Sensing Laboratory of Anhui Province Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationInstitutes of Physical Science and Information TechnologyAnhui UniversityHefei 230601People’s Republic of China

Self-charging power systems collecting energy harvesting technology and batteries are attracting extensive *** solve the disadvantages of the traditional integrated system,such as highly dependent on energy supply and complex structure,an airrechargeable Zn battery based on MoS_(2)/PANI cathode is *** from the excellent conductivity desolvation shield of PANI,the MoS_(2)/PANI cathode exhibits ultra-high capacity(304.98 mAh g^(−1) in N_(2) and 351.25 mAh g^(−1) in air).In particular,this battery has the ability to collect,convert and store energy simultaneously by an airrechargeable process of the spontaneous redox reaction between the discharged cathode and O2 from *** air-rechargeable Zn batteries display a high open-circuit voltage(1.15 V),an unforgettable discharge capacity(316.09 mAh g^(−1) and the air-rechargeable depth is 89.99%)and good air-recharging stability(291.22 mAh g^(−1) after 50 air recharging/galvanostatic current discharge cycle).Most importantly,both our quasi-solid zinc ion batteries and batteries modules have excellent performance and *** work will provide a promising research direction for the material design and device assembly of the next-generation self-powered system.

关键词： Air-rechargeable MoS_(2)/PANI Cathode Desolvation shield Energy storage mechanism Zn batteries module

The coalbed methane production potential method for optimization of wells location selection

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Journal of Coal Science & Engineering(China) 2013年第2期19卷 210-218页

作者： Feng-Ke DOU Yong-Shang KANG Shao-Feng QIN De-Lei mao Jun HAN College of Geosciences China University of Petroleum (Beijing) Beijing 102249 China State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum (Beijing) Beijing 102249 China Hancheng Branch Petrochina Coalbed Methane Company Limited Hancheng 715400 China Science and Technology Development Department CNPC Beijing 100724 China

A gas production potential method for optimization of gas wellsite locations selection is proposed in terms of the coalbed gas resources volume and the recoverability. The method uses the actual data about reservoirs in a coalbed gas field in central China to optimize wellsite locations in the studied area in combination with the dynamic data about actual production in the coalbed gas field, selects a favorable subarea for gas wells deployment. The method is established based on the basic properties of coal reservoirs, in combination with the coalbed thickness and the gas content to make an analysis of the gas storage potential of a coal reservoir, as well as resources volume and the permeability of a coal reservoir. This method can be popularized for optimization of wellsite locations in other methane gas development areas or blocks.

关键词： coalbed methane gas potential gas production potential method optimization of wellsite locations

Estimates of AGN Black Hole Mass and Minimum Variability Timescale

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Chinese Journal of Astronomy and Astrophysics 2005年第5期5卷 463-470页

作者： Guang-Zhong Xie Luo-En Chen Huai-Zhen Li Li-Sheng mao Hong Dai Zhao-Hua Xie Li Ma Shu-Bai Zhou National Astronomical Observatories Yunnan Observatory Chinese Academy of ScienceKunming 650011 Yunnan Astrophysics Center Yunnan University Kunming 650091 Physics Department Yunnan Normal University Kunming 650091 Physics Department Yuxi Normal College Yuxi 653100 Graduate University of Chinese Academy of Sciences Beijing 100049

Black hole mass is one of the fundamental physical parameters of active galactic nuclei （AGNs）, for which many methods of estimation have been proposed. One set of methods assumes that the broad-line region （BLR） is gravitationally bound by the central black hole potential, so the black hole mass can be estimated from the orbital radius and the Doppler velocity. Another set of methods assumes the observed variability timescale is determined by the orbital timescale near the innermost stable orbit around the Schwarzschild black hole or the Kerr black hole, or by the characteristic timescale of the accretion disk. We collect a sample of 21 AGNs, for which the minimum variability timescales have been obtained and their black hole masses （Mσ） have been well estimated from the stellar velocity dispersion or the BLR size-luminosity relation. Using the minimum variability timescales we estimated the black hole masses for 21 objects by the three different methods, the results are denoted by Ms, Mk and Md,respectively. We compared each of them with Mσ individually and found that：（1） using the minimum variability timescale with the Kerr black hole theory leads to small differences between Mσ and Mk, none exceeding one order of magnitude, and the mean difference between them is about 0.53 dex; （2） using the minimum variability timescale with the Schwarzschild black hole theory leads to somewhat larger difference between Mσ and Ms： larger than one order of magnitude for 6 of the 21 sources, and the mean difference is 0.74 dex; （3） using the minimum variability timescale with the accretion disk theory leads to much larger differences between Mσ and Md, for 13 of the 21 sources the differences are larger than two orders of magnitude; and the mean difference is as high as about 2.01 dex.

关键词： galaxies: active - galaxies: nuclei - galaxies: fundamental parameters

Huangqi Decoction,a compound Chinese herbal medicine,inhibits the proliferation and activation of hepatic stellate cells by regulating the long noncoding RNA-C18orf26-1/microRNA-663a/transforming growth factor-βaxis

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Journal of Integrative Medicine 2023年第1期21卷 47-61页

作者： Ben-sheng Dong Fu-qun Liu Wen-na Yang Xiao-dong Li Miao-juan Shi mao-rong Li Xiu-li Yan Hui Zhang Traditional Chinese Medicine Epigenomics Research Center Institute of Interdisciplinary Integrative Medicine ResearchShanghai University of Traditional Chinese MedicineShanghai 201203China Department of Rheumatology and Immunology Nanjing Lishui District Hospital of Traditional Chinese MedicineNanjing 211299Jiangsu ProvinceChina Department of Rheumatology and Immunology Yangzhou University Medical CollegeYangzhou 225000Jiangsu ProvinceChina Department of Cardiovascular Physiology Faculty of MedicineKagawa UniversityKita-gunKagawa 761-0793Japan Department of Gastroenterology Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghai 200437China

Objective Huangqi Decoction(HQD),a classical traditional Chinese medicine formula,has been used as a valid treatment for alleviating liver fibrosis;however,the underlying molecular mechanism is still *** our previous studies showed that microRNA-663a(miR-663a)suppresses the proliferation and activation of hepatic stellate cells(HSCs)and the transforming growth factor-β/small mothers against decapentaplegic(TGF-β/Smad)pathway,whether long noncoding RNAs(lncRNAs)are involved in HSC activation via the miR-663a/TGF-β/Smad signaling pathway has not yet *** present study aimed to investigate the roles of lncRNA lnc-C18orf26-1 in the activation of HSCs and the mechanism by which HQD inhibits hepatic *** The expression levels of lnc-C18orf26-1,miR-663a and related genes were measured by quantitative reverse transcription-polymerase chain *** were transfected with the miR-663a mimic or inhibitor and lnc-C18orf26-1 small interfering *** water-soluble tetrazolium salt-1 assay was used to assess the proliferation rate of *** in lncRNA expression were evaluated in miR-663a-overexpressing HSCs by using microarray to identify miR-663a-regulated *** hybrid was used to predict the potential miR-663a binding sites on *** reporter assays further confirmed the interaction between miR-663a and the *** expression levels of collagen α-2(I)chain(COL1A2),α-smooth muscle actin(α-SMA)and TGF-β/Smad signaling pathway-related proteins were determined using Western *** Lnc-C18orf26-1 was upregulated in TGF-β1-activated HSCs and competitively bound to *** of lnc-C18orf26-1 inhibited HSC proliferation and activation,downregulated TGF-β1-stimulatedα-SMA and COL1A2 expression,and inhibited the TGF-β1/Smad signaling *** suppressed the proliferation and activation of *** increased miR-663a expression and decreased lnc-C18orf26-1 expression in *** studies showed tha

关键词： Longnoncoding RNA-C18orf26-1 MicroRNA-663a Transforming growth factor-β Hepatic stellate cells Huangqi Decoction