检索结果-南通市图书馆

Continuous generation of lattice oxygen via redox engineering for boosting toluene degradation performances

Chinese Journal of Chemical Engineering 2021年第6期34卷 258-266页

作者： Shiya He zhimin you Xin Jin Yi Wu Cheng Chen He Zhao Jian Shen Department of Environment and Resources Xiangtan UniversityXiangtan 411105China State Key Laboratory of Heavy Oil Processing College of Chemical EngineeringChina University of PetroleumQingdao 266580China Beijing Engineering Research Center of Process Pollution Control Division of Environment Technology and EngineeringKey Laboratory of Green Process and EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China

Excellent performances promoted by lattice oxygen have attracted wide attention for catalytic degradation of volatile organic compounds(VOCs).However,how to control the continuous regeneration of lattice oxygen from the support is seldom *** this study,we selected sepiolite supported manganese-cobalt oxides(Co_(x)Mn_(100-x)O_(y))as model catalysts by tuning Co/(Co+Mn)mass ratio(x=3%,10%,15%,and 20%)to enhance toluene degradation efficiency,owing to lattice oxygen regeneration by redox cycle existing at the interface and Mn species with high valence state,initiated by cobalt catalytic performance under the role of crystal field stability *** results of activity test show that the sepiolite-Co_(15)Mn_(85)O_(y)catalyst exhibit outperformances at 193℃with 10,000 h^(-1)*** addition,the catalyst existed at the bottom of the"volcano"curve correlated T_(50)or T_(90)with Co/(Co+Mn)weight ratio is sepiolite-Co_(15)Mn_(85)O_(y),conforming its *** characterized by investigating active sites structural and electronic properties,the essential of superior catalytic activity is attributed to the grands of lattice oxygen continuous formation resulted from redox engineering based on the high atomic ratio of surface lattice oxygen with continuous refilled from the support and that of Mn^(4+)/Mn^(3+)cycle initiated by cobalt catalytic *** in all,redox engineering,not only promotes grands of active species reversible regeneration,but supplies an alternative catalyst design strategy towards the terrific efficiency-to-cost ratio performance.

关键词： Redox engineering Crystal field stability phase Lattice oxygen Toluene degradation

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

从一起电缆偷盗谈充油电缆油压在线监测系统

引用

供用电 2006年第3期23卷 61-63页

作者：游智敏上海电缆输配电工程公司上海200072

1 一起220 kV电缆偷盗事件1.1 事件的发现2005年10月31日7:22我公司电缆调度室通过油压监控系统报警提示,发现源广2173 A相福山路塞止房至福州路隧道间油段低油压示警信号,根据油压监测系统显示源广2173 A相油压跌破0.08 MPa(整定值设定... 详细信息

1 一起220 kV电缆偷盗事件1.1 事件的发现2005年10月31日7:22我公司电缆调度室通过油压监控系统报警提示,发现源广2173 A相福山路塞止房至福州路隧道间油段低油压示警信号,根据油压监测系统显示源广2173 A相油压跌破0.08 MPa(整定值设定为0.08 MPa).

关键词：在线监测系统充油电缆低油压监控系统调度室整定值 MPa 事件

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

High Fe‑Loading Single‑Atom Catalyst Boosts ROS Production by Density Effect for Efficient Antibacterial Therapy

引用

Nano-Micro Letters 2025年第2期17卷 187-203页

作者： Si Chen Fang Huang Lijie Mao zhimin Zhang Han Lin Qixin Yan Xiangyu Lu Jianlin Shi Department of Cardiology Shanghai Tenth People’s HospitalSchool of MedicineTongji UniversityShanghai 200092People’s Republic of China Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 200050People’s Republic of China Shanghai Frontiers Science Center of Nanocatalytic Medicine School of MedicineTongji UniversityShanghai 200092People’s Republic of China

The current single-atom catalysts(SACs)for medicine still suffer from the limited active site ***,we develop a synthetic method capable of increasing both the metal loading and mass-specific activity of SACs by exchanging zinc with *** constructed iron SACs(h^(3)-FNC)with a high metal loading of 6.27 wt%and an optimized adjacent Fe distance of~4 A exhibit excellent oxidase-like catalytic performance without significant activity decay after being stored for six months and promising antibacterial ***,a“density effect”has been found at a high-enough metal doping amount,at which individual active sites become close enough to interact with each other and alter the electronic structure,resulting in significantly boosted intrinsic activity of single-atomic iron sites in h^(3)-FNCs by 2.3 times compared to low-and medium-loading ***,the overall catalytic activity of h^(3)-FNC is highly improved,with mass activity and metal mass-specific activity that are,respectively,66 and 315 times higher than those of commercial Pt/*** addition,h^(3)-FNCs demonstrate efficiently enhanced capability in catalyzing oxygen reduction into superoxide anion(O_(2)·^(−))and glutathione(GSH)*** in vitro and in vivo assays demonstrate the superior antibacterial efficacy of h^(3)-FNCs in promoting wound *** work presents an intriguing activity-enhancement effect in catalysts and exhibits impressive therapeutic efficacy in combating bacterial infections.

关键词： Nanocatalytic medicine Single-atom catalysts Reactive oxygen species(ROS) High metal loading Oxidase catalysis

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

手机信令数据的出行测度准确性分析——基于与居民出行调查数据的比较

引用

地理科学进展 2024年第5期43卷 854-869页

作者：王德韩滨鹂张天然游智敏李心恬同济大学建筑与城市规划学院上海200092 成都市青白江区委社会工作部成都610300 上海市城市规划设计研究院上海200040

传统的居民出行调查是城市交通规划的基础数据,是城市居民出行行为的最权威记录。随着信息技术发展,以手机信令数据为代表的位置大数据,在时空行为研究领域展现出巨大的潜力。然而,手机信令数据能否取代出行调查数据却存在较大的争议。... 详细信息

传统的居民出行调查是城市交通规划的基础数据,是城市居民出行行为的最权威记录。随着信息技术发展,以手机信令数据为代表的位置大数据,在时空行为研究领域展现出巨大的潜力。然而,手机信令数据能否取代出行调查数据却存在较大的争议。焦点在于:手机信令数据的出行准确性难以评估,其识别结果在多大程度上可信、能否较为准确地测度居民出行特征等问题有待回答。论文利用上海居民出行调查数据及时间相近的手机信令数据,比较两类数据在出行强度、出行时间分布、出行空间分布、出行目的等出行特征的差异,并分析归纳两类数据产生偏差的程度及原因。研究揭示手机信令数据在描述出行人口人均出行次数及街道以上尺度的出行OD分布等方面准确度较高,在出行时耗、通勤出行比例方面准确度较低。研究认为手机信令数据产生偏差的原因主要由手机信令数据位置记录不完整等数据质量、停留时间阈值、基站密度不均与空间阈值的影响,以及职住地识别偏差引起。研究认为可通过样本筛选、数据链修复、识别方法改进等手段提高手机信令数据识别的精度。

关键词：出行指标出行链出行距离偏差校核上海

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

Enhanced autophagic clearance of amyloid-βvia histone deacetylase 6-mediated V-ATPase assembly and lysosomal acidification protects against Alzheimer's disease in vitro and in vivo

引用

Neural Regeneration Research 2025年第9期20卷 2633-2644页

作者： zhimin Long Chuanhua Ge Yueyang Zhao Yuanjie Liu Qinghua Zeng Qing Tang Zhifang Dong Guiqiong He Institute of Neuroscience School of Basic Medical SciencesChongqing Medical UniversityChongqingChina Department of Anatomy Chongqing Medical UniversityChongqingChina Department of Physiology Chongqing Medical UniversityChongqingChina Pediatric Research Institute Children’s Hospital of Chongqing Medical UniversityChongqingChina Ministry of Education Key Laboratory of Child Development and Disorders Children’s Hospital of Chongqing Medical UniversityChongqingChina National Clinical Research Center for Child Health and Disorders Children’s Hospital of Chongqing Medical UniversityChongqingChina Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders Children’s Hospital of Chongqing Medical UniversityChongqingChina

Recent studies have suggested that abnormal acidification of lysosomes induces autophagic accumulation of amyloid-βin neurons,which is a key step in senile plaque ***,resto ring normal lysosomal function and rebalancing lysosomal acidification in neurons in the brain may be a new treatment strategy for Alzheimer's *** acetylation/deacetylation plays a central role in lysosomal ***,we show that inhibiting the classic microtubule deacetylase histone deacetylase 6 with an histone deacetylase 6 shRNA or thehistone deacetylase 6 inhibitor valproic acid promoted lysosomal reacidification by modulating V-ATPase assembly in Alzheimer's *** rthermore,we found that treatment with valproic acid markedly enhanced *** clearance of amyloid-βaggregates,and ameliorated cognitive deficits in a mouse model of Alzheimer's *** findings demonstrate a previously unknown neuroprotective mechanism in Alzheimer's disease,in which histone deacetylase 6 inhibition by valproic acid increases V-ATPase assembly and lysosomal acidification.

关键词： Alzheimer's disease amyloid-β APP/PS1 mice autophagy cognitive impairment histone deacetylase 6 lysosomal acidification microtubule acetylation valproic acid V-ATPase

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

微波离子交换法制备Cu-ZSM-11及微波辐照MeO_x/Cu-ZSM-11催化分解NO

引用

化工学报 2016年第11期67卷 4652-4661页

作者：罗羽裳周继承徐文涛游志敏龙伟蒋沧海湘潭大学化工学院湖南湘潭411105

用微波辐照离子交换法制备了Cu-ZSM-11,制备的Cu-ZSM-11和金属氧化物(Me Ox)机械混合制备了微波催化剂Me Ox/Cu-ZSM-11。考察了Me Ox在微波辐照下的升温行为,筛选出吸波性能好的Me Ox(Mn O2>CuO>Ni_2O_3)为吸波组分。分别考察了微波辐... 详细信息

用微波辐照离子交换法制备了Cu-ZSM-11,制备的Cu-ZSM-11和金属氧化物(Me Ox)机械混合制备了微波催化剂Me Ox/Cu-ZSM-11。考察了Me Ox在微波辐照下的升温行为,筛选出吸波性能好的Me Ox(Mn O2>CuO>Ni_2O_3)为吸波组分。分别考察了微波辐照下金属氧化物、Cu-ZSM-11和Me Ox/Cu-ZSM-11直接分解NO性能,并与常规加热条件下比较。结果表明:微波辐照显著提高了NO的转化率,微波催化剂Ni_2O_3/Cu-ZSM-11在350℃时,NO转化率达到99.27%,N2选择性达到99.9%;相同条件下,微波辐照Me Ox/Cu-ZSM-11直接分解NO转化率高于对应金属氧化物或Cu-ZSM-11分解NO的转化率,表明微波具有催化作用。微波辐照下氧气浓度对Ni_2O_3/Cu-ZSM-11直接分解NO性能几乎无影响,微波辐照消除了氧气阻抑作用,表现出微波选择效应。水汽存在对转化率有较小影响。反应进口气体不需要预热,进出口气体温度基本不变。

关键词：微波微波离子交换沸石催化剂催化分解NO

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

两种电子供体对光合藻类微生物燃料电池产电性能及小球藻生长的影响

引用

环境工程学报 2015年第10期9卷 5109-5112页

作者：刘承鸿游志敏佟海龙于荆何燕湘潭大学化工学院重金属污染控制湖南省高校重点实验室湘潭411105

通过构建光合藻微生物燃料电池(PAMFC),研究了分别以乙酸钠或葡萄糖作为唯一电子供体时,对PAMFC的产电性能及其中小球藻生长的影响。结果表明,在外电阻为1 000Ω时,以乙酸钠为电子供体的PAMFC最大输出电压是285 m V、最大输出功率为3.42... 详细信息

通过构建光合藻微生物燃料电池(PAMFC),研究了分别以乙酸钠或葡萄糖作为唯一电子供体时,对PAMFC的产电性能及其中小球藻生长的影响。结果表明,在外电阻为1 000Ω时,以乙酸钠为电子供体的PAMFC最大输出电压是285 m V、最大输出功率为3.42 m W/m2;以葡萄糖为电子供体的PAMFC最大输出电压是247 m V、最大输出功率为2.68 m W/m2。同时,分别以乙酸钠或葡萄糖为电子供体的PAMFC中小球藻生长所达到的生物量分别是1.8 g/L和1.26g/L,而对照组中的小球藻生物量仅为0.83 g/L。简单电子供体的电池性能优于复杂电子供体,同时更能促进PAMFC中阴极光合藻生长,使电池阴极得以固定更多阳极所排放的二氧化碳。

关键词：微生物燃料电池小球藻生长乙酸钠

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

Glycolytic dysregulation in Alzheimer's disease:unveiling new avenues for understanding pathogenesis and improving therapy

引用

Neural Regeneration Research 2025年第8期20卷 2264-2278页

作者： you Wu Lijie Yang Wanrong Jiang Xinyuan Zhang Zhaohui Yao Department of Geriatrics Renmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina

Alzheimer's disease poses a significant global health challenge owing to the progressive cognitive decline of patients and absence of curative *** current therapeutic strategies,primarily based on cholinesterase inhibitors and N-methyl-Daspartate receptor antagonists,offer limited symptomatic relief without halting disease progression,highlighting an urgent need for novel research directions that address the key mechanisms underlying Alzheimer's *** studies have provided insights into the critical role of glycolysis,a fundamental energy metabolism pathway in the brain,in the pathogenesis of Alzheimer's *** in glycolytic processes within neurons and glial cells,including microglia,astrocytes,and oligodendrocytes,have been identified as significant contributors to the pathological landscape of Alzheimer's *** changes impact neuronal health and function,thus offering promising targets for therapeutic *** purpose of this review is to consolidate current knowledge on the modifications in glycolysis associated with Alzheimer's disease and explore the mechanisms by which these abnormalities contribute to disease onset and *** focus on the pathways through which glycolytic dysfunction influences Alzheimer's disease pathology should provide insights into potential therapeutic targets and strategies that pave the way for groundbreaking treatments,emphasizing the importance of understanding metabolic processes in the quest for clarification and management of Alzheimer's disease.

关键词： Alzheimer’s disease glial cells glycolysis neuronal metabolism pathogenesis therapeutic targets

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

改性铁矾土深度处理含砷废水试验研究

引用

工业水处理 2016年第4期36卷 30-33页

作者：陈建宏刘兴旺游志敏中南大学资源与安全工程学院湖南长沙410083 湘潭大学环境科学与工程系湖南湘潭411105 重金属污染控制湖南省普通高等学校重点实验室湖南湘潭411105

以天然铁矾土制备得到改性铁矾土除砷吸附剂,以某铅锌冶炼企业含砷废水为研究对象,考察进水pH、砷浓度、滤速等因素对砷去除率的影响,并考察了吸附剂再生后的吸附效果。结果表明,化学改性处理后,铁矾土对废水中砷的动态吸附容量明显提高... 详细信息

以天然铁矾土制备得到改性铁矾土除砷吸附剂,以某铅锌冶炼企业含砷废水为研究对象,考察进水pH、砷浓度、滤速等因素对砷去除率的影响,并考察了吸附剂再生后的吸附效果。结果表明,化学改性处理后,铁矾土对废水中砷的动态吸附容量明显提高,处理后废水中的残余砷浓度低于《铅、锌工业污染物排放标准》(GB 25466—2010)中砷排放浓度限值。用质量分数为5%的Na OH溶液对饱和改性铁矾土进行再生,能有效恢复其砷吸附容量。

关键词：砷吸附铁矾土改性

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

The characteristics of gully erosion over rolling hilly black soil areas of Northeast China

引用

Journal of Geographical Sciences 2009年第3期19卷 309-320页

作者：胡刚伍永秋刘宝元张永光游智敏于章涛 School of City Development University of Jinan State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal University College of Geography and Remote Sensing Beijing Normal University

In this study,short-term gully retreat was monitored from the active gullies selected in representative black soil area,using differential global positioning system(GPS).With the support of geographic information system(GIS),multi-temporal digital elevation models(DEM) were constructed from the data collected by GPS and used for further *** on the analysis of multi-temporal DEM,we discussed the erosion-deposition characteristics within gully and a developing model for black soil gully area of Northeast China was *** results are:(1) The analysis of the monitored gully data in 2004 indicated that the retreat of gully head reached more than 10 m,gully area extended 170-400 m2,net gully eroded volume 220-320 m3,and gully erosion modulus 2200-4800 t?km?2?a?1.(2) Compared with the mature gully the initial gully grows rapidly,and its erosion parameters are relatively *** erosion parameters have not only to do with flow energy,but also with the growth phase.(3) There are significant seasonal differences in gully erosion *** extension of gully area and width dominates in winter and spring without marked net erosion while changes mainly occur in gully head and net erosion in rainy season.(4) It is remarkable for freeze-thaw erosion in the black soil area of NE *** gully wall of SG2 extended 0.45 m under freeze-thaw effect in 2004,and the distance of gully head retreated maximally 6.4 m.(5) Due to freeze-thaw action and snowmelt,gully is primarily in the interior adjustment process in winter and early *** are much more depositions compared with that during rainy season,which can almost happen throughout the gully,while erosion mostly occurs near head,*** gullies having a relatively long history of *** the other hand,the process of energy exchange with exterior dominates in rainy *** is considered that this cyclic process is an important mechanism for gully growth in high latitude or/and high attitude regi

关键词： rolling hilly black soil areas gully erosion digital terrain model global positioning system

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：