检索结果-内蒙古大学图书馆

A review of gas-phase chemical mechanisms commonly used in atmospheric chemistry modelling

Journal of Environmental sciences 2023年第1期123卷 522-534页

作者： Yanhui Liu Jiayin Li Yufang Ma Ming Zhou Zhaofeng Tan Limin Zeng Keding Lu Yuanhang Zhang State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Science and EngineeringPeking UniversityBeijing 100871China Institute of Energy and Climate Research IEK-8:TroposphereForschungszentrum Jülich GmbHJülich 52428Germany

The atmospheric chemical mechanism is an essential component of airshed models used for investigating the chemical behaviors and impacts of *** the first tropospheric chemical mechanism was proposed in the 1960s,various mechanisms including Master Chemical Mechanism(MCM),Carbon Bond Mechanism(CBM),Statewide Air Pollution research center(SAPRC)and Regional Atmospheric Chemistry Mechanism(RACM)have been developed for different research *** work summarizes the development and applications of these mechanisms,introduces their compositions and lumping methods,and compares the ways the mechanisms treat radicals with box model *** can reproduce urban pollution events with relatively low cost compared to SAPRC and RACM,whereas the chemical behaviors of radicals and the photochemical production of ozone are described in detail in *** photolysis rates of some oxygenated compounds are low in SAPRC07,which may result in underestimation of radical *** an explicit chemical mechanism,MCM describes the chemical processes of primary pollutants and their oxidation products in *** can be used to investigate certain chemical processes;however,due to its large size,it is rarely used in regional model simulations.A box model case study showed that the chemical behavior of OH and HO_(2)radicals and the production of ozone were well described by all *** and SAPRC underestimated the radical levels for different chemical treatments,leading to low ozone production values in both *** and RACM are widely used in box model studies,while CBM and SAPRC are often selected in regional simulations.

关键词： Atmospheric chemistry Gas-phase chemical mechanism Ozone Box model

来源：评论

学校读者我要写书评

暂无评论

Mpox(formerly monkeypox):pathogenesis,prevention,and treatment

引用

Signal Transduction and Targeted Therapy 2024年第1期9卷 234-248页

作者： Junjie Lu Hui Xing Chunhua Wang Mengjun Tang Changcheng Wu Fan Ye Lijuan Yin Yang Yang Wenjie Tan Liang Shen Xiangyang Central Hospital Affiliated Hospital of Hubei University of Arts and ScienceHubei ProvinceXiangyang 441021China NHC Key Laboratory of Biosafety National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China College of Biotechnology Tianjin University of Science&TechnologyTianjin 300457China Shenzhen Key Laboratory of Pathogen and Immunity National Clinical Research Center for infectious diseaseState Key Discipline of Infectious DiseaseShenzhen Third People’s HospitalSecond Hospital Affiliated to Southern University of Science and TechnologyShenzhen 518112China

In 2022,a global outbreak of Mpox(formerly monkeypox)occurred in various countries across Europe and America and rapidly spread to more than 100 countries and *** World Health Organization declared the outbreak to be a public health emergency of international concern due to the rapid spread of the Mpox ***,nations intensified their efforts to explore treatment strategies aimed at combating the infection and its ***,the available therapeutic options for Mpox virus infection remain *** far,only a few numbers of antiviral compounds have been approved by regulatory *** the high mutability of the Mpox virus,certain mutant strains have shown resistance to existing pharmaceutical *** highlights the urgent need to develop novel antiviral drugs that can combat both drug resistance and the potential threat of ***,there is a lack of comprehensive literature on the pathophysiology and treatment of *** address this issue,we conducted a review covering the physiological and pathological processes of Mpox infection,summarizing the latest progress of anti-Mpox *** analysis encompasses approved drugs currently employed in clinical settings,as well as newly identified small-molecule compounds and antibody drugs displaying potential antiviral efficacy against ***,we have gained valuable insights from the process of Mpox drug development,including strategies for repurposing drugs,the discovery of drug targets driven by artificial intelligence,and preclinical drug *** purpose of this review is to provide readers with a comprehensive overview of the current knowledge on Mpox.

关键词： prevention treatment intensified

来源：评论

学校读者我要写书评

暂无评论

Insights into the floatability between spodumene and albite from crystal chemistry standpoint

引用

International Journal of Mining science and Technology 2022年第6期32卷 1329-1339页

作者： Hepeng Zhou Fanxin Xie Yongbing Zhang Boyuan Zhang Siqi Yang Xianping Luo Engineering Research Center for High-efficiency Development and Application Technology of Tungsten Resources(Jiangxi University of Science and Technology) Ministry of EducationGanzhou 341000China Jiangxi Province Key Laboratory of Mining and Metallurgy Environmental Pollution Control Jiangxi University of Science and TechnologyGanzhou 341000China

Spodumene is a silicate mineral rich in ***,the gangue mineral,albite has similar crystal chemical structure and composition to *** this work,the density functional theory(DFT)calculation was taken to research the floatability from the perspective of crystal *** contact angle test and reagent adsorption test were used to support the simulation *** addition,the weighted total density of broken bonds is proposed for the first time to judge the generation probability of cleavage *** DFT calculation results display that the Na and Al sites on the albite surface are the adsorption sites of water *** the water molecules only bond with Al atom on the surface of spodumene and each Al site can adsorb only one water ***,the wetting effect of water molecules on the albite surface is stronger than that of *** is consistent with the result of contact *** sodium oleate system,the oleic acid anion is adsorbed on the spodumene surface in form of a multicomponent ring while the albite is a single ***,oleic acid anion can be strongly adsorbed on the surface of spodumene and albite under *** adsorption strength of spodumene is higher than that of ***,on hydrated surface,the adsorption strength of oleic acid anion on mineral surface is greatly reduced due to the interaction between water molecules and metal site on mineral ***,spodumene and albite are hard to float without external activated ions in sodium oleate system.

关键词： Spodumene Albite Floatability Crystal chemistry DFT calculation

来源：评论

学校读者我要写书评

暂无评论

Water use in the industrial sector based on the IPAC model under the carbon-neutral transformation path in China

引用

Advances in Climate Change research 2024年第6期15卷 1130-1146页

作者： Yu-Jie JIAO Ke-Jun JIANG Sha CHEN Pian-Pian XIANG Chen-Min HE Beijing University of Technology College of Environmental Science and EngineeringKey Laboratory of Beijing on Regional Air Pollution ControlBeijing 100124China Energy Research Institute Chinese Academy of Macroeconomic ResearchBeijing 100045China Institutes of Science and Development Chinese Academy of SciencesBeijing 100190China Zhejiang Carbon Neutral Innovation Institute Zhejiang University of TechnologyHangzhou 310014China

To examine the impact of promoting transformative hydrogen-based technologies on water demand in traditional high-energy and high-water-consuming sectors under the carbon-neutral transition,this study investigates the industrial sector transformation *** compares the water consumption of current production processes with future hydrogen-based and advanced water-saving *** developing a model,the study analyses the water-saving potential of 54 water-saving and hydrogen-based technologies across three water consumption scenarios and evaluates their impact on industrial water *** study highlights the pivotal role of water-saving technologies in transforming industrial sectors,particularly in the paper and textile industries,where zero-emission technologies have considerably reduced water *** savings in the paper industry are projected to increase from 24.29 Mt in 2025 to 101.44 Mt in 2050,representing an 8.5%*** the chemical fibre sector,additional water savings are expected to reach 106.93 Mt by 2050,with an 11.6%increase in water-saving ***,the textile dyeing and finishing sector is anticipated to achieve an additional water saving of 26.45 Mt by 2050,corresponding to a 17.5%*** findings indicate that the adoption of hydrogen-based technologies will considerably reduce water consumption in traditionally high-water-consuming industries such as steel,synthetic ammonia,ethylene,and *** reduction becomes particularly evident by 2050 under the baseline pathway and low water consumption scenarios,in which the impact of water-saving technologies becomes less *** 2050,water consumption in the steel,ethylene,synthetic ammonia,and methanol industries is projected to decrease to 985.93,59.11,242.4,and 268.29 Mt,*** findings highlight the potential of hydrogen-based technologies in advancing water *** 2050,the chemical industry is projected to reduce water stress by tr

关键词： Carbon neutrality Industrial water Water-saving technology Hydrogen-based technology Steel Chemical industry

来源：评论

学校读者我要写书评

暂无评论

Fuzzy-Model-Based Fault-Tolerant control for Stochastic Re-Entrant Manufacturing Systems

引用

IEEE Transactions on Systems, Man, and Cybernetics: Systems 2025年第5期55卷 3542-3556页

作者： Zhang, Kexin Gao, Qing Ding, Steven X. Lu, Jinhu Qiu, Jianbin Guo, Yige Beihang University School of Cyber Science and Technology Beijing100191 China Beihang University School of Automation Science and Electrical Engineering Beijing100191 China Hangzhou Innovation Institute Beihang University Hangzhou310051 China Zhongguancun Laboratory Beijing100095 China Institute for Automatic Control and Complex Systems University of Duisburg-Essen Duisburg47057 Germany Research Institute of Intelligent Control and Systems Harbin Institute of Technology Harbin150001 China Zhongguancun Laboratory Beijing China

This study addresses the problem of guaranteed cost fault-tolerant fuzzy control for multiline re-entrant manufacturing systems (RMSs) against stochastic disturbances and workstation faults. Initially, a nonlinear hyperbolic impulsive partial differential equation model is employed to describe the complex and hybrid dynamics of RMSs suffering from unexpected faults within the working stations, and then the corresponding approximation T-S fuzzy model is constructed. In what follows, with the aid of the parallel distributed compensation fuzzy control scheme, the main results of stability analysis and controller synthesis for the closed-loop re-entrant manufacturing control system are derived using a timer-dependent Lyapunov functional with spatio-temporal auxiliary variables. It is found that by means of the proposed fault-tolerant control approach, the RMS can be effectively and robustly driven to a desired production mode with steady feeding and production rates while the upper bound of a quadratic cost function is minimized. Finally, the effectiveness of the proposed control approach is validated through numerical simulations. © 2013 IEEE.

关键词： Fuzzy control

来源：评论

学校读者我要写书评

暂无评论

Relay-projection microscopic telescopy

引用

Light(science & Applications) 2025年第4期14卷 1143-1155页

作者： Wenjun Yi Shuyue Zhu Meicheng Fu Nan Gu JunliQi Siyu Liu Mengjun Zhu Ping Wang Xin Chen Yi Zhang Hongyu Zhang Yao Xu Junyi Du Peng Xiong Zhaohua Dong Luobing Dong Qiong Liu Xiujian Li College of Science National University of Defense TechnologyChangshaChina Xi’an Satellite Control Center Xi’anChina School of Information and Electronics Engineering Hunan City UniversityYiyangChina College of Electronic Science National University of Defense TechnologyChangshaChina The School of Computer Science and Technology Xidian UniversityXi’anChina Senior Department of Otolaryngology Head and Neck Surgery the 6th Medical Center of Chinese PLA General HospitalChinese PLA Medical SchoolBeijingChina

The fundamental trade-off between spatial resolution and imaging distance poses a significant challenge for current imaging techniques,such as those used in modern biomedical diagnosis and remote ***,we introduce a new conceptual method for imaging dynamic amplitude-phase-mixed objects,termed relay-projection microscopic telescopy(rPMT),which fundamentally challenges conventional light collection techniques by employing non-line-ofsight light collection through square-law relay-projection *** successfully resolved tiny features measuring 2.76μm,22.10μm,and 35.08μm for objects positioned at distances of 1019.0 mm,26.4 m,and 96.0 m,respectively,from single-shot spatial power spectrum images captured on the relay screen;these results demonstrate that the resolution capabilities of rPMT significantly surpass the Abbe diffraction limit of the 25 mm-aperture camera lens at the respective distances,achieving resolution improvement factors of 7.9,25.4,and *** rPMT exhibits long-distance,wide-range,high-resolution imaging capabilities that exceed the diffraction limit of the camera lens and the focusing range limit,even when the objects are obscured by a scattering *** rPMT enables telescopic imaging from centimeters to beyond hundreds of meters with micrometer-scale resolution using simple devices,including a laser diode,a portable camera,and a diffusely reflecting *** contemporary high-resolution imaging techniques,our method does not require labeling reagents,wavefront modulation,synthetic receive aperture,or ptychography scanning,which significantly reduce the complexity of the imaging system and enhance the application *** method holds particular promise for in-vivo label-free dynamic biomedical microscopic imaging diagnosis and remote surveillance of small objects.

关键词： light collection techniques Imaging Distance Non Line Sight Relay Projection Microscopic Telescopy remote sensingherewe imaging techniquessuch biomedical diagnosis Spatial Resolution

来源：评论

学校读者我要写书评

暂无评论

Effects of external parameters on plasma characteristics and uniformity in a dual cylindrical inductively coupled plasma

引用

Plasma science and Technology 2024年第12期26卷 63-74页

作者： Pengyu WANG Siyu XING Daoman HAN Yuru ZHANG Yong LI Cheng ZHOU Fei GAO Younian WANG Key Laboratory of Materials Modification by Laser Ionand Electron Beams(Ministry of Education)School of PhysicsDalian University of TechnologyDalian 116024People’s Republic of China Lab of Advanced Space Propulsion and Beijing Engineering Research Center of Efficient and Green Aerospace Propulsion Technology Beijing Institute of Control EngineeringBeijing 100190People’s Republic of China

The dual cylindrical inductively coupled plasma source,compared to the conventional structure of inductively coupled plasma source,can significantly improve the uniformity of *** has an enhanced potential for application in processes,such as etching and ashing.A uniform plasma can be obtained by allowing the remote plasma from the upper chamber modulate the main plasma generated in the lower *** this study,a fluid model was employed to investigate a dual cylindrical inductively coupled Ar/O_(2)*** effects of external parameters on electron density,electron temperature,O atomic density,and plasma uniformity in the main chamber were studied,and the reasons were *** results of this study show that remote power can control the plasma uniformity and increase the plasma density in the main *** the remote power increased,plasma uniformity improved initially and then *** main power affected the plasma density at the edge of the main chamber and can modulate the plasma density in the main *** gas pressure affected both the uniformity and density of the *** the gas pressure increased,the plasma uniformity deteriorated,but the free radical density improved.

关键词： dual inductively coupled plasma remote plasma plasma uniformity fluid model

来源：评论

学校读者我要写书评

暂无评论

Ultrathin RCS Reduction Metasurface Based on Integer and Fractional Vortex Waves

Ultrathin RCS Reduction Metasurface Based on Integer and Fra...

引用

2024 Photonics and Electromagnetics research Symposium, PIERS 2024

作者： Liu, Qian Liang, Difei Chen, Haiyan Han, Tiancheng Yao, Xin He, Qingting Wang, Xiaodi Wen, Shuntian Xue, Zhichao University of Electronic Science and Technology of China National Engineering Research Center of Electromagnetic Radiation Control Materials Chengdu China University of Electronic Science and Technology of China Key Laboratory of Multi-Spectral Absorbing Materials and Structures of Ministry of Education Chengdu China

ISBN: (纸本)9798350375909

In this paper, an ultrathin radar cross section (RCS) reduction metasurface is designed and realized by reflection-type vortex waves with various topological charges. Due to the singularity of the OAM characteristics, a significant RCS reduction is obtained at the operating frequency of 14GHz. Based on the fact that fractional-order vortex waves have unique radial amplitude zeros in addition to amplitude zero in the center, the monostatic RCS reduction characterization of fractional-order vortex metasurface is also mainly discussed. By analyzing the orbital angular momentum spectrum of different fractional vortex waves and field variation, the singularity range can be effectively manipulated so that the singularity is transmitted in the radial direction. The simulated results demonstrate that different OAM modes can be generated, and the monostatic RCS reduction over 30dB can be obtained at 14GHz under the normal incidence of the plane wave. Moreover, the thickness of the proposed RCS reduction metasurface is about 0.05 wavelength of the operation resonant frequency, which indicates that the metasurfaces have the characteristic of ultrathin. The far-field features of these metasurfaces show that they have prospective application value in scattering control technology. © 2024 IEEE.

关键词： Radar cross section

来源：评论

学校读者我要写书评

暂无评论

Transcriptome analysis and functional gene identification reveals potential mechanisms of heat stress response of Lactiplantibacillus plantarum CGMCC8198

引用

Food Bioscience 2023年第1期51卷 152-158页

作者： Jia-Yi Da Mao-Sheng Xi Han-Lu Li Min-Min Liu Cheng-Hui Zhou Zhong-Yuan Li Ya-Jian Song Sa Zhou Tong-Cun Zhang Xue-Gang Luo Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education and Tianjin Key Laboratory of Industrial Microbiology College of BiotechnologyTianjin University of Science and TechnologyTianjin300457China Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control Tianjin300457China

Lactiplantibacillus plantarum is an important probiotic bacterium and extensively applied to functional *** survival is strongly affected by the heat-shock process during *** is thought to be able to enhance bacteria resistance to heat *** this study,the results of transcriptomics and bioinformatics analysis showed that alcohol dehydrogenase adhE-like,phosphoribose-ATP pyrophosphatase hisE,flavodoxin ykuN,and dihydropterin aldolase folB might be related with heat resistance of *** ***,after these genes were expressed in Escherichia coli,survival rate,hydrophobicity and membrane integrity of the recombinant bacteria under high temperature were also significantly ***,by screening the strains after multiple rounds of acclimation,a strain(XH)with better heat tolerance was obtained,and the results of qRT-PCR showed that these four genes,especially hisE,were upregulated in the acclimated strain when it was treated with high *** findings indicated that adhE-like and some other potential genes could improve the heat resistance of lactic acid bacteria,and might be used as indicators for screening of heat-tolerant probiotics strains.

关键词： Probiotic Heat stress Functional genes Acclimation

来源：评论

学校读者我要写书评

暂无评论

Building of lightweight Nb_(2)CT_(x) MXene@Co nitrogen-doped carbon nanosheet arrays@carbon fiber aerogels for high-efficiency electromagnetic wave absorption in X and Ku bands inspired by sea cucumber

引用

Nano research 2024年第11期17卷 9261-9274页

作者： Jiatong Yan Ce Cui Wenhao Bai Hong Tang Ronghui Guo College of Biomass Science and Engineering Sichuan University Chengdu 610065 China Yibin Industrial Technology Research Institute Sichuan University Yibin 644005 China High-Tech Organic Fibers Key Laboratory of Sichuan Province Chengdu 610041 China Aviation Key Laboratory of Science and Technology on Structural Corrosion Prevention and Control China Special Vehicle Research Institute Jingmen 448035 China Graduate School of Energy Science Kyoto University Kyoto City 606-8501 Japan

The problems of electromagnetic wave(EMW)pollution in X and Ku bands(8–18 GHz)are becoming more and more ***,it is urgent to design EMW absorbing materials with high-efficiency such as thin thickness,lightweight,wide bandwidth and strong EMW *** by the biomorph of sea cucumber,Nb_(2)CT_(x) MXene@Co nitrogen-doped carbon nanosheet arrays@carbon fiber aerogels(Nb_(2)CT_(x)@Co-NC@CFA,Nb_(2)CT_(x)=niobium carbide)were constructed by self-assembly,in-situ chemical deposition and subsequent *** carbon fiber aerogel,as the basic skeleton of sea cucumber,forms lightweight three-dimensional interconnected conductive network,enhances the dielectric loss and extends the multiple reflection and absorption paths of *** the tentacles of sea cucumber surface,Nb_(2)CT_(x) MXene and Co nitrogen-doped carbon nanosheet arrays exist rich heterogeneous interfaces,which play an important role in improving EMW polarization loss and optimizing impedance *** minimum reflection loss(RLmin)of Nb_(2)CT_(x)@Co-NC@CFA reaches−54.7 dB at 9.84 GHz(2.36 mm)with a low filling ratio of 10 wt.%and the effective absorption bandwidth(EAB)of Nb_(2)CT_(x)@Co-NC@CFA reaches 2.96 GHz(8.48–11.44 GHz)with 2.36 mm and 5.2 GHz(12.8–18 GHz)with 1.6 mm,covering most of X and Ku bands by adjusting *** radar cross section(RCS)value of Nb_(2)CT_(x)@Co-NC@CFA is 26.64 dB·m^(2),which is lower than that of the perfect electrical conductor(PEC),indicating that Nb_(2)CT_(x)@Co-NC@CFA can effectively decrease the probability of the target being detected by the radar *** work provides ideas for design and development of EMW absorbing materials with high-efficiency EMW absorption in X and Ku bands.

关键词： bionic sea cucumber Nb_(2)CT_(x)MXene Co nitrogen-doped carbon nanosheet arrays carbon fiber aerogel lightweight electromagnetic wave absorption

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：