检索结果-南通市图书馆

The complex roles of m^(6)A modifications in neural stem cell proliferation, differentiation, and self-renewal and implications for memory and neurodegenerative diseases

引用

Neural Regeneration Research 2025年第6期20卷 1582-1598页

作者： Yanxi Li Jing xue Yuejia Ma Ke Ye xue zhao Fangliang Ge Feifei Zheng Lulu Liu Xu Gao Dayong Wang Qing Xia Department of Biochemistry and Molecular Biology College of Basic Medical SciencesHarbin Medical UniversityHarbinHeilongjiang ProvinceChina College of Basic Medical Sciences Harbin Medical UniversityHarbinHeilongjiang ProvinceChina Basic Medical Institute Heilongjiang Academy of Medical SciencesHarbinHeilongjiang ProvinceChina Key Laboratory of Heilongjiang Province for Genetically Modified Animals Harbin Medical UniversityHarbinHeilongjiang ProvinceChina Translational Medicine Research and Cooperation Center of Northern China Heilongjiang Academy of Medical SciencesHarbinHeilongjiang ProvinceChina Dongzhimen Hospital Beijing University of Chinese MedicineBeijingChina

N6-methyladenosine(m^(6)A), the most prevalent and conserved RNA modification in eukaryotic cells, profoundly influences virtually all aspects of mRNA metabolism. mRNA plays crucial roles in neural stem cell genesis and neural regeneration, where it is highly concentrated and actively involved in these processes. Changes in m^(6)A modification levels and the expression levels of related enzymatic proteins can lead to neurological dysfunction and contribute to the development of neurological diseases. Furthermore, the proliferation and differentiation of neural stem cells, as well as nerve regeneration, are intimately linked to memory function and neurodegenerative diseases. This paper presents a comprehensive review of the roles of m^(6)A in neural stem cell proliferation, differentiation, and self-renewal, as well as its implications in memory and neurodegenerative diseases. m^(6)A has demonstrated divergent effects on the proliferation and differentiation of neural stem cells. These observed contradictions may arise from the time-specific nature of m^(6)A and its differential impact on neural stem cells across various stages of development. Similarly, the diverse effects of m^(6)A on distinct types of memory could be attributed to the involvement of specific brain regions in memory formation and recall. Inconsistencies in m^(6)A levels across different models of neurodegenerative disease, particularly Alzheimer's disease and Parkinson's disease, suggest that these disparities are linked to variations in the affected brain regions. Notably, the opposing changes in m^(6)A levels observed in Parkinson's disease models exposed to manganese compared to normal Parkinson's disease models further underscore the complexity of m^(6)A's role in neurodegenerative processes. The roles of m^(6)A in neural stem cell proliferation, differentiation, and self-renewal, and its implications in memory and neurodegenerative diseases, appear contradictory. These inconsistencies may be a

关键词： Alzheimer's disease cell self-renewal central nervous system memory microglia nerve regeneration neurodegenerative diseases neurogenesis RNA methylation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Epidemiological survey of echinococcosis in Tibet Autonomous Region of China

引用

Infectious Diseases of Poverty 2019年第2期8卷 23-33页

作者： Bin Li Gongsang Quzhen chui-zhao xue Shuai Han Wei-Qi Chen Xin-Liu Yan Zhong-Jie Li MLinda Quick Yong Huang Ning Xiao Ying Wang Li-Ying Wang Gesang Zuoga Bianba Gangzhu Bing-Cheng Ma Gasong Xiao-Gang Wei Niji Can-Jun Zheng Wei-Ping Wu Xiao-Nong Zhou Tibet Autonomous Region Center for Diseases Control and Prevention Lhasa 850000Tibet Autonomous RegionChina National Institute of Parasitic Diseases Chinese Center for Disease Control and PreventionChinese Center for Tropical Diseases ResearchWHO Collaborating Centre for Tropical DiseasesNational Center for International Research on Tropical DiseasesMinistry of Science and TechnologyKey Laboratory of Parasite and Vector BiologyMOHHuangpu DistrictShanghai 200025China Henan Center for Diseases Control and Prevention ZhengzhouShanghai 450000HenanChina Yunnan Institute of Diseases Control and Prevention Kunming 650000YunnanChina Chinese Center for Diseases Control and Prevention ChangpingBeijing 102200China Center for Diseases Control and Prevention AtlantaGA 30328USA Shandong Institute of Parasitic Diseases Jining 272033ShandongChina Lhasa Center for Diseases Control and Prevention Lhasa 850000Tibet Autonomous RegionChina Shigatse Center for Diseases Control and Prevention Sangzhuzi District 857000Tibet Autonomous RegionChina Shannan Center for Diseases Control and Prevention Shannan 856000Tibet Autonomous RegionChina Linzhi Center for Diseases Control and Prevention Linzhi 860000Tibet Autonomous RegionChina Changdu Center for Diseases Control and Prevention Changdu 854000Tibet Autonomous RegionChina Naqu Center for Diseases Control and Prevention Naqu 852000Tibet Autonomous RegionChina Ali Center for Diseases Control and Prevention Ali 859000Tibet Autonomous RegionChina Beijing China

Background:The echinococcosis is prevalent in 10 provinces/autonomous region in western and northern *** survey of echinococcosis in China in 2012 showed the average prevalence of four counties in Tibet Autonomous Region(TAR)is 4.23%,much higher than the average prevalence in China(0.24%).It is important to understand the transmission risks and the prevalence of echinococcosis in human and animals in ***:A stratified and proportionate sampling method was used to select samples in *** selected residents were examined by B-ultrasonography diagnostic,and the faeces of dogs were tested for the canine coproantigen against Echinococcus *** enzyme-linked immunosorbent *** internal organs of slaughtered domestic animals were examined by visual examination and *** awareness of the prevention and control of echinococcosis among of residents and students was investigated using *** data were inputted using double entry in the Epi Info database,with error correction by double-entry comparison,the statistical analysis of all data was processed using SPSS 21.0,and the map was mapped using ArcGIS 10.1,the data was tested by Chi-square test and Cochran-Armitage trend ***:A total of 80384 people,7564 faeces of dogs,and 2103 internal organs of slaughtered domestic animals were *** prevalence of echinococcosis in humans in TAR was 1.66%,the positive rate in females(1.92%)was significantly higher than that in males(1.41%),(X2=30.31,P<0.01),the positive rate of echinococcosis was positively associated with age(X2trend=-423.95,P<0.01),and the occupational populations with high positive rates of echinococcosis were herdsmen(3.66%)and monks(3.48%).The average positive rate of Echinococcus coproantigen in TAR was 7.30%.The positive rate of echinococcosis in livestock for the whole region was 11.84%.The average awareness rate of echinococcosis across the region was 33.39%.Conclusions:A high prevalence of echin

关键词： Tibet Echinococcosis Prevalence Ultrasonography

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Sea cucumber intestinal hydrolysates alleviate insulin resistance through regulating IRS1/PI3K/AKT signaling pathway mediated by glutamine metabolism in high-fat and high-sucrose diet-induced mice

引用

Food Science and Human Wellness 2025年

作者： Meng Wang Man Yao Hao Yue Yingying Tian Zifang zhao Changhu xue Tiantian Zhang Yuming Wang SKL of Marine Food Processing & Safety Control， College of Food Science and Engineering， Ocean University of China Institute of Food & Nutrition Science and Technology， Shandong Academy of Agricultural Sciences Hainan Huayan Collagen Technology Co. Sanya Institute of Oceanography， Ocean University of China

It has been reported that sea cucumber intestine hydrolysates (SCIH) could promote glutamine metabolism in mice， while there is a close connection between glutamine metabolism and insulin sensitivity. However， the effect of SCIH on insulin resistance is still unclear. The results showed that SCIH hydrolyzed by flavor protease had significant activity using the insulin-induced HepG2 cell model. Animal experiments exhibited that SCIH supplementation significantly improved the high-fat and high-sucrose diet-induced impaired glucose tolerance， reduced fasting serum glucose and glycosylated serum protein. Besides， SCIH ameliorated islet vacuolization and decreased the pancreas TNF-α and IL-6 by 32.1% and 36.2%， respectively. Immunofluorescence staining results showed that SCIH promoted insulin secretion. Interestingly， SCIH significantly increased the liver glutamine levels and upregulated the expression of glutaminase1 (GLS1) and glutamate dehydrogenase 1 (GLUD1). Furthermore， SCIH increased liver acetyl-CoA levels to enhance histone acetylation and activate the gene transcription and translation on glucose metabolism-related IRS/PI3K/AKT signaling pathway， thereby attenuating insulin resistance. The present findings proposed the potential value for developing functional foods in SCIH utilization.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Enhanced subacute ischemic stroke treatment via multistage drug delivery system design for combination therapy

引用

Science China Chemistry 2025年

作者： Xihan Xu Juan-Juan Li Jiamin Li Hui-Yan Zhang Yilin Qi Bing-Sen Shi Tianqi Li Shan-Shan Su Weitao zhao Chang Chen Zhongying Gong Huiyu Liu Ke-Rang Wang Dong-Sheng Guo xue xue State Key Laboratory of Medicinal Chemical Biology College of Pharmacy Nankai University College of Chemistry State Key Laboratory of Elemento-Organic Chemistry Key Laboratory of Functional Polymer Materials (Ministry of Education) Frontiers Science Center for New Organic Matter Collaborative Innovation Center of Chemical Science and EngineeringNankai University College of Chemistry and Materials Science State Key Laboratory of New Pharmaceutical Preparations and Excipients Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education) Key Laboratory of Chemical Biology of Hebei Province Hebei Research Center of the Basic Discipline of Synthetic Chemistry Hebei University Department of Neurology Tianjin First Central Hospital School of Medicine Nankai University Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing Laboratory of Biomedical Materials Bionanomaterials & Translational Engineering Laboratory Beijing Key Laboratory of BioprocessBeijing University of Chemical Technology

The management of acute ischemic stroke remains challenging due to its abrupt onset and the narrow treatment window,resulting in high rates of disability and *** therapy for neuroprotection and neurorepair strategies provided new hopes for subacute stroke *** we designed a multistage nanodelivery system that matches the unique microenvironment of the subacute phase of stroke,which utilizes calixarene as a building block to effectively load the neuroprotective drug *** calixarene is designed with glycosidic linkages targeting the glucose transporter 1 (GLUT1)on the blood-brain barrier (BBB) and azo bonds that are responsive to hypoxic ***,the decomposed calixarene molecules themselves possess intrinsic bio-activation to modulate inflammatory responses,achieving a multistage therapeutic approach that transitions from targeting to release and finally to *** approach combines anti-inflammation and neuroprotection,providing a multi-level treatment *** system was validated in a rat model of permanent middle cerebral artery occlusion (pMCAO),demonstrating that intravenous administration of the nanodelivery system repairs brain damage and improves motor function 24 h post-pMCAO *** work offers a precise and integrative strategy for stroke patients missing the acute therapy window to improve functional recovery and enhance the effect of comprehensive treatment.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

High-precision magnetic field measurement system based on a coherent population trapping magnetometer onboard the SATech-01 satellite

引用

Science China Technological Sciences 2025年

作者： Hongbo xue Wei SONG Haoran zhao Yiteng ZHANG Shanzhi YE Jindong WANG Ran TAO Peng SANG Keli CHEN Xingzi BI Bingjun CHENG Bin ZHOU Yongliang xue Yingying TANG Liu LIU Jinsong LI Xiaocheng ZHU Baoquan LI Jinguo LIU Wen CHEN Xiaofeng ZHANG Yonghe ZHANG Lei LI State Key Laboratory of Space Weather National Space Science Center Chinese Academy of Sciences Key Laboratory of Solar Activity and Space Weather National Space Science Center Chinese Academy of Sciences Key Laboratory of Electronics and Information Technology for Space Systems National Space Science Center Chinese Academy of Sciences State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences Innovation Academy for Microsatellites Chinese Academy of Sciences

On July 27, 2022, a high-precision system for measuring the magnetic field based on a coherent population trapping magnetometer（referred to as the CPT system） was launched onboard the Space Advanced Technology demonstration satellite（SATech-01） by a ZK-1A rocket. The payload comprises a scalar coherent population trapping magnetometer（CPTM）, triaxial anisotropic magnetoresistance magnetometer（AMRM）, and nano star tracker mounted on a non-magnetic telescopic tubular mast. This configuration enables synchronized measurement of scalar and vector geomagnetic fields, as well as the attitude,making the payload with its compact sensors suitable for applications on miniature satellite platforms. On November 7, 2022,the novel telescopic tubular mast was deployed in orbit, extending to a length of 5.28 m. The CPTM, an absolute scalar magnetometer with an omnidirectional sensor, is the first China-developed quantum/atomic magnetometer successfully operating in space. In orbit, the CPTM has sensitivity of ～10 pT/Hz1/2and can automatically operate under complex magnetic field variations. The difference between the scalar fields obtained using the CPTM and CHAOS model has a mean deviation of–3.73 n T and a standard deviation of 26.11 nT（1σ）, without on-orbit calibration or correction. The miniaturized AMRM has a sensitivity of ～0.3 n T/Hz1/2and maintains stable and reliable operation in orbit. The low-power and miniaturized nano star tracker has a measurement uncertainty of 14.23″（1σ） in orbit. The mission has realized the on-orbit technical verification of the integrated and synchronized detection of the vector magnetic field and attitude and fully validated the system's performance,automation level, and reliability.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Y_(2)O_(3)弥散强化高速钢的激光选区熔化制备及性能

引用

工程科学学报 2025年第1期47卷 33-43页

作者：刘岩赵定国李月崔小杰王书桓薛月凯华北理工大学冶金与能源学院唐山063210

为提高高速钢的综合性能,利用行星式球磨机将M2高速钢(W_(6)Mo_(5)Cr_(4)V_(2))粉体与纳米尺寸的Y_(2)O_(3)颗粒进行低能球磨混合,并采用激光选区熔化制备Y_(2)O_(3)弥散强化M2高速钢.实验结果表明,球磨后的M2高速钢粉体基本呈球形,未... 详细信息

为提高高速钢的综合性能,利用行星式球磨机将M2高速钢(W_(6)Mo_(5)Cr_(4)V_(2))粉体与纳米尺寸的Y_(2)O_(3)颗粒进行低能球磨混合,并采用激光选区熔化制备Y_(2)O_(3)弥散强化M2高速钢.实验结果表明,球磨后的M2高速钢粉体基本呈球形,未发生严重变形,表面嵌布大量纳米级Y_(2)O_(3)颗粒.激光选区熔化成形的Y_(2)O_(3)弥散强化M2高速钢试样的致密度为98.3%,纵向微观组织主要为等轴晶和柱状枝晶,横向微观组织为等轴晶,平均晶粒尺寸为900 nm.X射线衍射结果显示Y_(2)O_(3)颗粒的加入对M2高速钢物相种类影响不大,仍由马氏体相、残余奥氏体相和碳化物组成.其抗拉强度达到了943 MPa,与未添加Y_(2)O_(3)颗粒的高速钢相比,强度提高了36%.

关键词：激光选区熔化 M2高速钢氧化物弥散强化激光电冶金力学性能

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

全谷物及杂豆添加量在小鼠与人体间剂量换算分析

引用

食品科学 2025年第2期46卷 118-125页

作者：支莉朱益清赵亮星陈睿赵卿宇王超薛勇沈群国家粮食产业(青稞深加工)技术创新中心国家粮油标准测试研究中心中国农业大学食品科学与营养工程学院北京100083

适量摄入全谷物及杂豆可以改善糖代谢和脂代谢,但摄入量过高可能产生不利影响。由于缺乏相应的换算关系,小鼠饲料中的摄入量无法直接作为人群摄入量的参考。本文介绍小鼠饲料中常见的全谷物及杂豆的添加量,并通过等效系数法、比表面积... 详细信息

适量摄入全谷物及杂豆可以改善糖代谢和脂代谢,但摄入量过高可能产生不利影响。由于缺乏相应的换算关系,小鼠饲料中的摄入量无法直接作为人群摄入量的参考。本文介绍小鼠饲料中常见的全谷物及杂豆的添加量,并通过等效系数法、比表面积法、体型系数法、食物比重法、体表面积指数法、能量换算法和营养素换算法探讨了小鼠饲料中全谷物及杂豆添加量与人群膳食推荐量之间的剂量效应关系。研究表明,当人群全谷物及杂豆推荐摄入量为50~150 g时,相当于在每日进食量为3 g的小鼠饲料中添加5%~50%的全谷物及杂豆。对于小鼠而言,饲料中全谷物及杂豆的添加量超过50%可能存在过量摄入的风险。本研究为未来建立全谷物及杂豆在小鼠饲料添加量与人群推荐摄入量之间的换算关系提供了重要参考。

关键词：剂量换算全谷物杂豆体表面积

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Einstein Probe discovery of EP240408a: A peculiar X-ray transient with an intermediate timescale

引用

Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 222-240页

作者： Wenda Zhang Weimin Yuan Zhixing Ling Yong Chen Nanda Rea Arne Rau Zhiming Cai Huaqing Cheng Francesco Coti Zelati Lixin Dai Jingwei Hu Shumei Jia Chichuan Jin Dongyue Li Paul O’Brien Rongfeng Shen Xinwen Shu Shengli Sun Xiaojin Sun Xiaofeng Wang Lei Yang Bing Zhang Chen Zhang Shuang-Nan Zhang Yonghe Zhang Jie An David Buckley Alexis Coleiro Bertrand Cordier Liming Dou Rob Eyles-Ferris Zhou Fan Hua Feng Shaoyu Fu Johan P.U.Fynbo Lluis Galbany Saurabh W.Jha Shuaiqing Jiang Albert Kong Erik Kuulkers Weihua Lei Wenxiong Li Bifang Liu Mingjun Liu Xing Liu Yuan Liu Zhu Liu Chandreyee Maitra Alessio Marino Itumeleng Monageng Kirpal Nandra Jeremy Sanders Roberto Soria Lian Tao Junfeng Wang Song Wang Tinggui Wang Zhongxiang Wang Qingwen Wu xuefeng Wu Dong Xu Yanjun Xu Suijian xue Yongquan xue Zijian Zhang Zipei Zhu Hu Zou Congying Bao Fansheng Chen Houlei Chen Tianxiang Chen Wei Chen Yehai Chen Yifan Chen Chenzhou Cui Weiwei Cui Yanfeng Dai Dongwei Fan Ju Guan Dawei Han Dongjie Hou Haibo Hu Maohai Huang Jia Huo Zhenqing Jia Bowen Jiang Ge Jin Chengkui Li Junfei Li Longhui Li Maoshun Li Wei Li Zhengda Li Tianying Lian Congzhan Liu Heyang Liu Huaqiu Liu Fangjun Lu Laidan Luo Jia Ma Xuan Mao Haiwu Pan Xin Pan Liming Song Hui Sun Yunyin Tan Qingjun Tang Yihan Tao Hao Wang Juan Wang Lei Wang Wenxin Wang Yilong Wang Yusa Wang Qinyu Wu Haitao Xu Jingjing Xu Xinpeng Xu Yunfei Xu zhao Xu Changbin xue Yulong xue Ailiang Yan Haonan Yang Xiongtao Yang Yanji Yang Juan Zhang Mo Zhang Wenjie Zhang Zhen Zhang Zhen Zhang Ziliang Zhang Donghua zhao Haisheng zhao Xiaofan zhao Zijian zhao Hongyan Zhou Yilin Zhou Yuxuan Zhu Zhencai Zhu National Astronomical Observatories Chinese Academy of Sciences School of Astronomy and Space Sciences University of Chinese Academy of Sciences Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences Institute of Space Sciences (ICE) CSIC Institut d’Estudis Espacials de Catalunya (IEEC) Max Planck Institute for Extraterrestrial Physics Innovation Academy for Microsatellites Chinese Academy of Sciences Department of Physics University of Hong Kong School of Physics and Astronomy University of Leicester School of Physics and Astronomy Sun Yat-sen University Department of Physics Anhui Normal University Shanghai Institute of Technical Physics Chinese Academy of Sciences Physics Department Tsinghua University Nevada Center for Astrophysics University of Nevada Las Vegas Department of Physics and Astronomy University of Nevada Las Vegas South African Astronomical Observatory Department of Astronomy University of Cape Town Department of Physics University of the Free State Université Paris Cité CNRS Astroparticule et Cosmologie Université Paris Cité CEA Paris-Saclay IRFU/DAp-AIM Department of Astronomy Guangzhou University Cosmic Dawn Center (DAWN) Niels Bohr Institute University of Copenhagen Department of Physics and Astronomy Rutgers the State University of New Jersey Institute for Cosmic Ray Research The University of Tokyo ESA/ESTEC Department of Astronomy School of Physics Huazhong University of Science and Technology INAF-Osservatorio Astrofisico di Torino Sydney Institute for Astronomy School of Physics The University of Sydney Department of Astronomy Xiamen University Institute for Frontiers in Astronomy and Astrophysics Beijing Normal University Department of Astronomy University of Science and Technology School of Astronomy and Space Sciences University of Science and Technology of China Institute of Deep Space Sciences Deep Space Exploration Laboratory Department of Astronomy School of Physics and Astronomy Yunnan University Shanghai Astronomical Observatory Chi

We report the discovery of a peculiar X-ray transient,EP240408a,by Einstein Probe （EP） and follow-up studies made with EP,Swift,NICER,GROND,ATCA and other ground-based multiwavelength *** new transient was first detected with Wide-field X-ray Telescope （WXT） on board EP on April 8th,2024,manifested in an intense yet brief X-ray flare lasting for *** flare reached a peak flux of 3.9×10-9erg cm-2s-1in 0.5-4 ke V,～300 times brighter than the underlying X-ray emission detected throughout the *** and more precise follow-up observations by EP/FXT,Swift and NICER confirmed the finding of this new *** X-ray spectrum is non-thermal in 0.5-10 ke V,with a power-law photon index varying *** X-ray light curve shows a plateau lasting for ～4 d,followed by a steep decay till becoming undetectable ～10 d after the initial *** on its temporal property and constraints from previous EP observations,an unusual timescale in the range of 7-23 d is found for EP240408a,which is intermediate between the commonly found fast and long-term *** counterparts have been found in optical and near-infrared,with the earliest observation at 17 h after the initial X-ray detection,suggestive of intrinsically weak emission in these *** demonstrate that the remarkable properties of EP240408a are inconsistent with any of the transient types known so far,by comparison with,in particular,jetted tidal disruption events,gamma-ray bursts,X-ray binaries and fast blue optical *** nature of EP240408a thus remains an *** suggest that EP240408a may represent a new type of transients with intermediate timescales of the order of～10 *** detection and follow-ups of more of such objects are essential for revealing their origin.

关键词： X-ray transients ${\bm~{Einstein~~Probe}}$

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Cooking grease particles purification review and technology combination strategy evaluation for commercial kitchens

引用

Building Simulation 2021年第6期14卷 1597-1617页

作者： Dongfang zhao xue-yi You Tianjin Key Lab of Indoor Air Environmental Quality Control School of Environmental Science and EngineeringTianjin UniversityJinnan DistrictTianjin 300350China

Effective emission control of cooking oil fumes(COFs),particularly for grease particles,has always been a cause of great concern for catering *** review and evaluation of combinations of purification technology are urgently *** work presents a literature review and combination strategy evaluation of purification technology of grease particles of commercial kitchens.A variety of mainstream purification technologies,such as mechanical separation(M),filtration(F),washing absorption(W)and electrostatic deposition(E)are *** order to establish a complete and efficient fume purification system for commercial kitchen,this study proposes the four-point principles of combined purification technologies as:(1)from easy to difficult(for grease particle diameter);(2)fire prevention and noise reduction;(3)electrostatic deposition postposition;(4)Absorption and dissolution(by-product from electrostatic).Based on the above principles and separation characteristics,the recommended combinations of purification strategies are M-E,F-E,M-F-E and *** combination strategy of M-F-E is adopted as an example to evaluate and optimize COFs purification system use life cycle assessment *** results indicate that the optimization of the M-F-E purification system using rotating mesh plate instead of baffle filter can reduce the environmental impact of global warming and eutrophication by about 35%which reduces the emissions of CO_(2)and SO_(2)from 92.533 kg and 0.110 kg to 60.214 kg and 0.072 kg,*** the review of relevant purification technologies,the study also proposes the combination of principles of purification technologies and the evaluation and optimization of life cycle assessment for the optimal design of combined purification system.

关键词： combination strategy commercial kitchen cooking grease particles environmental impact assessment purification technology

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Buster Die Shape Design of a Track Link Forging Using FEM Based Back-Tracing Method

引用

Journal of Materials Science & Technology 2001年第1期17卷 139-140页

作者： Guoqun zhao xue DENG Mold&Die Engineer Technology Research Center Shandong University of TechnologyJinan 250061China

For the preform design of a complex track link forging, fifteen critical sections were selected for two dimensional back-tracing using FEM. The preform shapes of the critical sections are designed and integrated into an ideal 3D busting shape. The buster dies are finally designed according to the ideal busting shape with a little of modification. The 3D simulation of the busting stage is carried out.

关键词： two dimensional preform design

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

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：