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琼州学院学报 2009年第6期16卷 167-168页

作者：黎瑞珍徐云升杨敏林宏凤琼州学院化学系海南五指山572200

本文在调查的基础上,对初三学生提高化学学习兴趣的相关问题加以论。

关键词：中学化学学习兴趣提高实验

Land cover classification from remote sensing images based on multi-scale fully convolutional network

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Geo-Spatial Information Science 2022年第2期25卷 278-294页

作者： rui li Shunyi zheng Chenxi Duan libo Wang Ce Zhang School of Remote Sensing and Information Engineering Wuhan UniversityWuhanChina Faculty of Geo-Information Science and Earth Observation(ITC) University of TwenteEnschedeThe Netherlands The State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan UniversityWuhanChina Lancaster Environment Centre Lancaster UniversityLancasterUK UK Centre for Ecology&Hydrology LancasterUK

Although the Convolutional Neural Network(CNN)has shown great potential for land cover classification,the frequently used single-scale convolution kernel limits the scope of informa-tion ***,we propose a Multi-Scale Fully Convolutional Network(MSFCN)with a multi-scale convolutional kernel as well as a Channel Attention Block(CAB)and a Global Pooling Module(GPM)in this paper to exploit discriminative representations from two-dimensional(2D)satellite ***,to explore the ability of the proposed MSFCN for spatio-temporal images,we expand our MSFCN to three-dimension using three-dimensional(3D)CNN,capable of harnessing each land cover category’s time series interac-tion from the reshaped spatio-temporal remote sensing *** verify the effectiveness of the proposed MSFCN,we conduct experiments on two spatial datasets and two spatio-temporal *** proposed MSFCN achieves 60.366%on the WHDLD dataset and 75.127%on the GID dataset in terms of mIoU index while the figures for two spatio-temporal datasets are 87.753%and 77.156%.Extensive comparative experiments and abla-tion studies demonstrate the effectiveness of the proposed MSFCN.

关键词： Spatio-temporal remote sensing images Multi-Scale Fully Convolutional Network land cover classification

基于DELMIA与人机工程的航天产品虚拟装配仿真

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电子机械工程 2019年第6期35卷 46-50页

作者：李正睿吴梦如杨欣悦方兵湖北三江航天红峰控制有限公司

针对目前我国航天制造企业依赖实物模装进行装配工艺设计的现状,文中围绕某航天产品开展了虚拟装配仿真分析。基于MBD和"反装"的思路,以DELMIA为研究平台,在某航天产品实物装配前,对三维模型开展了虚拟装配研究。在虚拟装配过程中进行... 详细信息

针对目前我国航天制造企业依赖实物模装进行装配工艺设计的现状,文中围绕某航天产品开展了虚拟装配仿真分析。基于MBD和"反装"的思路,以DELMIA为研究平台,在某航天产品实物装配前,对三维模型开展了虚拟装配研究。在虚拟装配过程中进行碰撞干涉检测,对装配顺序采用装配关联图进行分析,针对装配中的难点进行人机工程分析,并针对发现的问题就装配路径、装配顺序和装配方法提出了优化方案。同时,为更好地指导实物装配,采用了文字对话框等形式加强工艺表达,最终生成了可直接用于现场装配的工序顺序和装配指导演示视频。通过实际生产验证,该方法能够缩短产品从设计到最终实现的周期,有助于降低研制成本,保障航天产品装配质量。

关键词：人机工程虚拟装配航天产品工艺设计

Research and application of reanalysis data for radio astronomical site testing

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Research in Astronomy and Astrophysics 2020年第12期20卷 279-286页

作者： Ming-Shuai li rui li Na Wang Xing-Wu zheng Xinjiang Astronomical Observatory Chinese Academy of Sciences830011 UrumqiChina Key Laboratory of Radio Astronomy Chinese Academy of Sciences210034 NanjingChina School of Astronomy&Space Science Nanjing UniversityNanjing 210093China

Selecting a good site for ground-based astronomy is very important. Based on the ERA-Interim global reanalysis data, this paper studied the atmospheric conditions of the Qitai Telescope(QTT) site from the aspects of absolute humidity, mixing ratio and precipitable water vapor(PWV). Error estimations of meteorological parameters are also analyzed. These primary results show that the QTT site has obvious advantages in terms of conditions with much less atmospheric water vapor than two well-known existing sites with 100-meter-aperture radio telescopes in the world. In addition, due to the influence of atmospheric water vapor on radio observations, the atmospheric transmittance for each frequency band of the site are simulated, and the atmospheric opacity is also calculated as well as Planck radiation brightness. Based on these results, the effective observational time of different bands is further estimated.

关键词： site testing opacity radiative transfer

The Multiple Roles of Autophagy in Neural Function and Diseases

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Neuroscience Bulletin 2024年第3期40卷 363-382页

作者： Yan-Yan li zheng-Hong Qin rui Sheng Department of Pharmacology and Laboratory of Aging and Nervous Diseases Jiangsu Key laboratory of Neuropsychiatric DiseasesCollege of Pharmaceutical Sciences of Soochow UniversitySuzhou 215123China

Autophagy involves the sequestration and delivery of cytoplasmic materials to lysosomes,where proteins,lipids,and organelles are degraded and *** to the way the cytoplasmic components are engulfed,autophagy can be divided into macroautophagy,microautophagy,and chaperone-mediated ***,many studies have found that autophagy plays an important role in neurological diseases,including Alzheimer's disease,Parkinson's disease,Huntington's disease,neuronal excitotoxicity,and cerebral *** maintains cell homeostasis in the nervous system via degradation of misfolded proteins,elimination of damaged organelles,and regulation of apoptosis and ***-mTOR,Beclin 1,TP53,endoplasmic reticulum stress,and other signal pathways are involved in the regulation of autophagy and can be used as potential therapeutic targets for neurological ***,we discuss the role,functions,and signal pathways of autophagy in neurological diseases,which will shed light on the pathogenic mechanisms of neurological diseases and suggest novel targets for therapies.

关键词： Autophagy Neurodegenerative diseases Cerebral ischemia AMPK mTOR Beclin 1 TP53 Endoplasmic reticulum stress

外周血IFN-γ、IL-4及IL-17A水平与老年湿疹临床类型的相关性

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热带医学杂志 2018年第2期18卷 203-205,239页

作者：夏栩琼陈军陆雯丽郑蕊上海交通大学附属第九人民医院皮肤科上海201209

目的探讨老年湿疹患者外周血内干扰素-γ(IFN-γ)、白介素-4(IL-4)及白介素-17A(IL-17A)水平及其与湿疹临床类型的相关性。方法选取2015年1月至2017年1月于本院确诊为老年湿疹的63例患者纳入研究组,并选取本院老年健康体检者60例纳入对... 详细信息

目的探讨老年湿疹患者外周血内干扰素-γ(IFN-γ)、白介素-4(IL-4)及白介素-17A(IL-17A)水平及其与湿疹临床类型的相关性。方法选取2015年1月至2017年1月于本院确诊为老年湿疹的63例患者纳入研究组,并选取本院老年健康体检者60例纳入对照组。采用酶联免疫吸附法(EliSA)检测外周血内IFN-γ、IL-4及IL-17A的表达水平,比较其在研究组与对照组,急性湿疹患者与慢性湿疹患者,局限型湿疹患者与泛发型湿疹患者中的差异。结果与对照组相比,研究组老年湿疹患者外周血中IFN-γ、IL-4及IL-17A水平均显著升高,差异有统计学意义(P<0.05);老年急性湿疹患者外周血中IFN-γ、IL-4及IL-17A水平均明显高于老年慢性湿疹患者(P<0.05);泛发型组湿疹患者外周血中IFN-γ、IL-4及IL-17A水平均明显高于局限型组湿疹患者,差异有统计学意义(P<0.05)。结论老年湿疹患者外周血中IFN-γ、IL-4及IL-17A水平的高低可作为反映临床类型的指标。

关键词：湿疹 IFN-γ IL-4 IL-17A

Effect of salt bath temperature on microstructure and mechanical properties of an austempered alloyed cast iron

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China Foundry 2024年第6期21卷 709-716页

作者： Jie zheng Ji-lin li Sheng-feng li Xiao-hui Tu rui-xue li Institute of Advanced Wear and Corrosion Resistant and Functional Materials Jinan UniversityGuangzhou 510632China Institute of New Materials Guangdong Academy of SciencesGuangzhou 510650China School of Materials Science and Engineering Harbin University of Science and TechnologyHarbin 150080China

An alloyed cast iron was prepared by horizontal continuous *** study the salt bath temperature on microstructure and mechanical properties,the alloyed cast iron was firstly austenitized at 950℃for 3 h and then austempered in salt bath at various temperatures(250℃,300℃and 350℃)for another 3 *** scanning electron microscopy(SEM),electron backscattered diffraction(EBSD),and X-ray diffraction(XRD)were employed to observe the microstructure and test the mechanical properties of the alloyed cast *** show that the microstructure of the alloyed cast iron is mainly composed of acicular or feathery ferrite(bainite),retained austenite,carbide,and *** austempered in salt bath at 250℃,300℃and 350℃for 3 h,the volume fractions of retained austenite are 33.1%,41.7%,and 57.2%,the thickness of acicular ferrite are 0.25μm,0.3μm,and 0.8μ*** the salt bath austempering temperature increases,the mechanical properties decrease due to the increase of the volume fraction of retained austenite and the thickness of acicular *** highest tensile strength of the alloyed cast iron is achieved when it is austempered at 250℃in a salt *** these conditions,the tensile strength of the alloyed cast iron can reach 1,429 *** test results indicate that the fracture mechanism is predominantly brittle fracture.

关键词： alloyed cast iron austempering treatment retained austenite microstructure mechanical properties

过氧乙酸戊二醛复方消毒剂对NDV和IBDV的杀灭试验

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中国兽医杂志 2017年第4期53卷 33-35页

作者：史晨婕郝利华白瑞郑明学苏文雪张黎席柔贡鑫苏晓晴张李琦山西农业大学动物科技学院山西太谷030801 太原市动物园山西太原030009

探讨过氧乙酸戊二醛复方消毒剂杀灭新城疫病毒(NDV)和传染性囊病病毒(IBDV)的效果,为鸡病毒性传染病的防治提供依据。分别采用鸡胚接种法、血凝试验和悬浮杀灭试验测定过氧乙酸戊二醛复方消毒剂对NDV和IBDV的杀灭效果。过氧乙酸戊二醛... 详细信息

探讨过氧乙酸戊二醛复方消毒剂杀灭新城疫病毒(NDV)和传染性囊病病毒(IBDV)的效果,为鸡病毒性传染病的防治提供依据。分别采用鸡胚接种法、血凝试验和悬浮杀灭试验测定过氧乙酸戊二醛复方消毒剂对NDV和IBDV的杀灭效果。过氧乙酸戊二醛复方消毒剂灭活NDV、IBDV的有效浓度均为0.04%,最快有效时间分别为10 min和30 min。过氧乙酸戊二醛复方消毒剂可有效杀灭NDV和IBDV。在有效杀灭浓度范围内,随浓度的增高和作用时间的延长对NDV和IBDV的灭活效果增强。

关键词：过氧乙酸戊二醛复方消毒剂新城疫病毒传染性囊病病毒

Performance and microbial community of a membrane bioreactor system--Treating wastewater from ethanol fermentation of food waste

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Journal of Environmental Sciences 2017年第3期29卷 284-292页

作者： Xiaobiao Zhu Mengqi li Wei zheng rui liu Lujun Chen Beijing University of Chemical Technology College of Chemical EngineeringBeijing 100029China School of Environment Tsinghua UniversityBeijing 100084China Key Laboratory of Water Science and Technology of Zhejiang Province Jiaxing 314006China

In this study, a lab-scale biological anaerobic/anaerobic/anoxic/membrane bioreactor （A3-MBR） was designed to treat wastewater from the ethanol fermentation of food waste, a promising way for the disposal of food waste and reclamation of resources. The 454 pyrosequencing technique was used to investigate the composition of the microbial community in the treatment system. The system yielded a stable effluent concentration of chemical oxygen demand （202 ± 23 mg/L）, total nitrogen （62.1 ± 7.1 mg/L）, ammonia （0.3 ±0.13 mg/L） and total phosphorus （8.3 ± 0.9 rag/L）, and the reactors played different roles in specific pollutant removal. The exploration of the microbial community in the system revealed that：（1） the microbial diversity of anaerobic reactors A1 and A2, in which organic pollutants were massively degraded, was much higher than that in anoxic A3 and aerobic MBR; （2） although the community composition in each reactor was quite different, bacteria assigned to the classes Clostridia, Bacteroidia, and Synergistia were important and common microorganisms for organic pollutant degradation in the anaerobic units, and bacteria from Alphaproteobacteria and Betaproteobacteria were the dominant microbial population in A3 and MBR; （3） the taxon identification indicated that Arcobacter in the anaerobic reactors and Thauera in the anoxic reactor were two representative genera in the biological process. Our results proved that the biological A3-MBR process is an alternative technique for treating wastewater from food waste.

关键词： Food wasteMBRBacterial diversityMicrobial composition

Gut-brain axis as a bridge in obesity and depression:Mechanistic exploration and therapeutic prospects

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World Journal of Psychiatry 2025年第1期15卷 12-20页

作者： rui-Ying Fang Xiao-rui Pan Xin-Xing Zeng zheng-zheng li Bo-Fan Chen Hai-Min Zeng Jie Peng The Second Clinical Medical College The Second Affiliated HospitalJiangxi Medical CollegeNanchang UniversityNanchang 330006Jiangxi ProvinceChina

A recent study by Wang et al,published in the World Journal of Psychiatry,provided preventative and therapeutic strategies for the comorbidity of obesity and *** gut-brain axis,which acts as a two-way communication system between the gastrointestinal tract and the central nervous system,plays a pivotal role in the pathogenesis of these *** suggests that metabolic byproducts,such as short-chain fatty acids,lipopolysaccharide and bile acids,which are generated by the gut microbiota,along with neurotransmitters and inflammatory mediators within the gut-brain axis,modulate the host's metabolic processes,neuronal regulation,and immune responses through diverse *** interaction between obesity and depression via the gut-brain axis involves disruptions in the gut microbiota balance,inflammatory immune responses,and alterations in the neuroendocrine *** the gut-brain axis,for example,through a ketogenic diet,the use of probiotics,and the supplementation of antioxidants,offers new remedial approaches for obesity and *** research that explores the mechanisms of the gut-brain axis is needed to provide more evidence for clinical treatment.

关键词： Gut-brain axis Obesity Depression Gut microbiota Mechanism