检索结果-南通市图书馆

Tailored ionically conductive graphene oxide-encased metal ions for ultrasensitive cadaverine sensor

Chinese Chemical Letters 2024年第8期35卷 508-513页

作者： ying chen li li Junyao Zhang Tongrui Sun Xuan Zhang Shiqi Zhang Jia Huang Yidong Zou School of Materials Science and Engineering Tongji UniversityShanghai 201804China Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation Translational Research Institute of Brain and Brain-Like IntelligenceShanghai Fourth People’s Hospital Affiliated to Tongji UniversityTongji UniversityShanghai 200434China School of Mechanical Engineering Nantong UniversityNantong 226019China

Intelligent chemical sensors have been extensively used in food safety and environmental assessment,while limited sensitivity and homogeneity bring about huge obstacles to their practical ***,novel ionically conductive sensitive materials were elaborately designed based on metal ion decorated graphene oxide(GO)via a facile and general in-situ spin-coating strategy,where the abundant functional groups(-OH and-COOH)of GO layer could provide natural binding sites for various bivalent metal cations(such as Cu^(2+),Ni^(2+),Zn^(2+),Co^(2+),and Mg^(2+))through coordination and electrostatic *** intercalated metal cations on the layered GO nanosheets can be regarded as charge carriers and complexation with targeted gas(cadaverine,Cad),which is a typical metabolites production and food *** contrast,the designed GO@Cu(Ⅱ)sensor exhibited the optimal sensing performance toward Cad molecules at room temperature,including ultra-low detection limit(ca.3 nL),excellent sensitivity,and rapid low concentration detection rate(only 16 s).Interestingly,the sensor exhibited an irreversible and specific response toward Cad,while it showed a transient and reversible response to other interfering gases,implying its outstanding *** addition,the GO@Cu(Ⅱ)sensor enabled real-time monitoring of the decay progression of cheese,and it exhibited great potential for large-scale production via its excellent *** provides an efficient approach to tailoring intelligent chemical sensors for real-time food safety monitoring and human health warning.

关键词： Graphene oxide Cadaverine monitoring Chemical sensor Ionically conductive Homogeneity

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

Formation environment and hydrocarbon potential of the Paleogene Enping Formation coal measures in the ZhuⅠDepression of northern South China Sea

引用

Acta Oceanologica Sinica 2024年第4期43卷 119-135页

作者： Yuting Yin Lei Lan Dongdong Wang ying chen Yan liu Youchuan li Zengxue li Jiamin liu College of Earth Science and Engineering Shandong University of Science and TechnologyQingdaoShandong 266590China China National Offshore Oil Corporation Research Institute Co. Ltd.Beijing 100028China School of Geography Earth and Environmental SciencesUniversity of BirminghamBirminghamB152TTUK

The coal-measure source rock in the Chinese sea area plays a significant role as a hydrocarbon source rock,with its genetic environment,development and distribution,and hydrocarbon generation potential serving as essential factors for the exploration of coal-type oil and gas *** study focuses on the coal-measure source rock of the Paleogene Enping Formation in the ZhuⅠDepression,located in the northern South China *** main geological insights obtained are as *** coal measures of the Enping Formation are developed in a warm and wet tropical-subtropical *** development environment of the coal-measure source rock in the Enping Formation includes the braided river delta upper plain peat swamp,characterized by dry forest swamp coal facies with relatively thick coal seams and a small number of *** braided river delta lower plain swamp-interdistributary bay of braided river delta front represents a forest edge-wetland herbaceous swamp coal facies with numerous layers of thin coal seams and poor *** shore swamp corresponds to an open water swamp coal facies with multiple layers of thin coal seams and poor *** organic matter abundance in the braided river delta upper plain is the highest,followed by the braided river delta lower plain-braided river delta front,and the shore-shallow *** organic matter type is predominantly typeⅡ*** evolution analysis suggests that the organic matter has progressed into a substantial oil generation *** hydrocarbon generation potential of the coal-measure source rock in the Enping Formation is the highest in the braided river delta upper plain,followed by the braided river delta lower plain-braided river delta front and the shore-shallow ***,this study proposes three organic facies in the coal-measure source rock of the Enping Formation:upper-plain swamp-dry forest swamp facies,lower plain-interdistributary bay-forest-herbaceous swamp facies,and lake swamp-herbaceo

关键词： coal-measure source rock Paleogene genetic environment hydrocarbon generation characteristic ZhuⅠDepression

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

Effect of Reclamation on the Groundwater-Lake Water Interaction in chen Lake

引用

Journal of Earth Science 2024年第3期35卷 1083-1086页

作者： Kun Lei Teng Ma liuzhu chen Zhenxing li Yu chen School of Environmental Studies State Key Laboratory of Biogeology and Environmental GeologyChina University of GeosciencesWuhan 430078China

0 INTRODUCTION To relieve the short supply of suitable land for residing,cultivating,and commerce,it is accepted to reclaim land from lakes,river estuaries,and coastal regions in many countries(Mancini et al.,2020).The large-scale reclamation activities have an irreversible effect on the mico-geomorphology and hydrodynamic system of seasonally flooded areas(Zhang et al.,2019;Yu et al.,2018).For example,coastal regions reclaimed extended the groundwater flow paths,as well as created groundwater level rise,resulting in water-logging in the reclaimed area(Hu et al.,2008).Similar changes in groundwater flow systems may alter groundwater-lake water interactions,and it can ultimately affect the water cycle in the lake ***,such detailed studies are presently *** addition,natural exchanges between the lake and groundwater systems can be strongly affected by physical hydrological processes(Javadzadeh et al.,2020),chemical properties(Kamtchueng et al.,2015),and bioto behavior(Hancock et al.,2005).

关键词： groundwater coastal logging

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

Selective cyclohexane oxidation enhancement by electronic structures regulation of metal-poly(ionic liquid)s

引用

Green Chemical Engineering 2024年第2期5卷 213-221页

作者： ying Jin Shengxin chen Ruirui Wang Yumei liu Xinxin li yingwei li Ruirui Zhang Ruixia liu Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou450001China Beijing Key Laboratory of Ionic liquids Clean Process CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringInnovation Academy for Green ManufactureCASBeijing100190China

Poly(ionic liquids)(PILs)combined with the macromolecular structure and unique properties of ionic liquids show unlimited potential in *** this work,a series of metal-based PIL with different ionic ratios were prepared for the selective oxidation of *** analysis reveals that different degrees of ionization could adjust the Co-N sites of the catalysts efficiently,leading to significant changes in their electronic structure,which strongly relate to catalytic performance in oxidation.20.07%cyclohexane conversion and 13.06%cyclohexanone and cyclohexanol(KA oil)yield can be achieved by metal-based PILs that are better than other commercial *** with CoCl_(2),metal-based PILs perform well,with superior conversion and KA oil *** interestingly,the catalyst created in this study features a malleable Co-N site,which may potentially have an impact on how oxygen species adsorb and desorb from the ***,the catalyst studied in this work is used as molecular oxygen for the selective oxidation of cyclohexane to produce KA oil,and its application prospect is promising.

关键词： Metal-PILs Cyclohexane oxidation C-H activation Co-N sites

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

Case Report:Malignant peritoneal mesothelioma presenting with persistent high fever

引用

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第5期12卷 381-384页

作者： li-ying chen ling-xiu HUANG Jin WANG Yi QIAN li-zheng FANG Department of Family Medicine Sir Run Run Shaw Hospital School of Medicine Zhejiang University Hangzhou 310016 China Department of Pathology Sir Run Run Shaw Hospital School of Medicine Zhejiang University Hangzhou 310016 China

Malignant peritoneal mesothelioma(MPM) is a rare tumor that develops in the *** this paper,we describe an extremely rare case of MPM metastasizing to the appendix in a 48-year-old female who initially presented with a persistent high *** woman reported a slight lower abdominal discomfort which had been relieved by urination for four *** had lost 5 kg of *** was no nausea,vomiting,diarrhea,ab-dominal pain,or abdominal *** broad spectrum antibiotics were given without relief of *** tomography(CT) scans revealed a thickened omentum majus and diffused multiple omental *** omentec-tomy,appendectomy,and adnexectomy were carried out.A gross pathologic specimen of omentum tissue revealed a firm gray-white *** and immunohistochemical examinations confirmed the diagnosis of appendiceal and bilateral adnexal metastases of an *** results suggest that MPM should be considered in the differential diagnosis of unexplained persistent high *** of such atypical presentations of mesothelioma may help to make a correct diagnosis.

关键词： Malignant peritoneal mesothelioma High fever Metastasis

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

Optimizing FeCoNiCrTi high-entropy alloy with hydrogen pumping effect to boost de/hydrogenation performance of magnesium hydride

引用

Rare Metals 2024年第7期43卷 3273-3285页

作者： Meng-chen Song Fu-ying Wu Yi-Qun Jiang Xiu-Zhen Wang Hu Zhao li-Xin chen liu-Ting Zhang School of Energy and Power Instrumental Analysis CenterJiangsu University of Science and TechnologyZhenjiang 212003China Max Planck Institute for Iron Research 40237DuisseldorfGermany School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore State Key Laboratory of Silicon Materials Department of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China

The exploration of efficient,long-lived and cost-effective transition metal catalysts is highly desirable for the practical hydrogen storage of magnesium hydride(MgH_(2)) in sustainable energy ***,FeCoNiCrTi high-entropy alloy(HEA) nanosheets were prepared via a facile wet chemical ball milling strategy and they were introduced into MgH_(2) to boost the hydrogen storage *** refined HEA exhibited superior catalytic activity on MgH_(2).In contrast to additive-free MgH_(2),the initial desorption temperature of the constructed MgH_(2)-HEA composite was reduced from 330.0 to 198.5℃ and a remarkable 51% reduction in the dehydrogenation activation energy was ***,the MgH_(2)-HEA composite only required one-twentieth time of that consumed by pure MgH_(2) to absorb 5.0 wt% of H_(2) at 225℃.The synergy between the "hydrogen pumping" effect of Mg_2Ni/Mg_2NiH_4 and Mg_2Co/Mg_2CoH_5 couples,as well as the good dispersion of Fe,Cr and Ti on the surface of MgH_(2) contributed to the enhanced de/hydrogenation performance of the MgH_(2)-HEA *** study furnishes important steering for the design and fabrication of multiple transition metal catalysts and may push the commercial application of magnesium-based hydrides one step forward.

关键词： Hydrogen storage Magnesium hydride High-entropy alloys 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

In situ modification of heavy oil catalyzed by nanosized metal-organic framework at mild temperature and its mechanism

引用

Chinese Journal of Chemical Engineering 2024年第3期67卷 166-173页

作者： li Wang Ji-Xiang Guo Rui-ying Xiong chen-Hao Gao Xiao-Jun Zhang Dan Luo The Unconventional Oil and Gas Institute China University of Petroleum-BeijingBeijing 102200China Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijing 101400China

Two catalysts, nano-sized cobalt-metal-organic framework(Co-MOF) and nickel(Ni)-MOF, were successfully prepared by the modification method. Tetralin(C10H12) was used as the hydrogen donor for the catalytic cracking and hydrogenation modification study of the dehydrated crude oil from the Shengli Oilfield. The optimal reaction conditions were determined through orthogonal experiments, and the components of the crude oil and modified oil samples were analyzed. The results revealed that the nanoMOF catalysts were successfully prepared and exhibited high catalytic activity. They could catalyze the cracking of large molecules in heavy oil at mild temperatures(<300°C), leading to the decomposition of the hydrogen donor. When the mass fraction of the catalyst was 0.2%, the mass fraction of the hydrogen donor was 1%, and the reaction temperature was 280°C, the Ni-MOF showed the best catalytic viscosity reduction effect. It could reduce the viscosity of heavy oil at 50°C from 15761.9 m Pa.s to 1266.2 m Pa.s,with a viscosity reduction rate of 91.97%. The modification effect of Co-MOF was the next best, which could reduce the viscosity of heavy oil to 2500.1 m Pa.s with a viscosity reduction rate of 84.14%. Molecular dynamics simulations revealed a strong interaction force between the MOF surface and asphaltene molecules. In the process of heavy-oil catalytic hydrogenation, the nano-MOF catalyst exhibited high catalytic activity. On the one hand, the empty d orbitals outside the metal atoms in the catalyst could polarize the carbon atoms in the organic matter, accelerating the breaking of long chains. On the other hand, the metal atoms in the catalyst could bond with the carbon σ bonds, breaking the carbon-carbon bonds. This disrupted the structure of the recombined components in the crude oil, irreversibly reducing the viscosity of the heavy oil and improving its fluidity.

关键词： Nano-sized MOF Petroleum Viscosity reduction Catalyst Nanomaterials

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 joint Laplace transforms for killed diffusion occupation times

引用

Applied Mathematics(A Journal of Chinese Universities) 2024年第3期39卷 398-415页

作者： li ying-qiu chen Ye School of Mathematics and Statistics Changsha University of Science and TechnologyChangsha 410114China College of Mathematics and Computational Science Hunan University of Arts and ScienceChangde 415000China

The approach of li and Zhou(2014)is adopted to find the Laplace transform of occupation time over interval(0,a)and joint occupation times over semi-infinite intervals(-∞,a)and(b,∞)for a time-homogeneous diffusion process up to an independent exponential time e_(q)for 0licit expressions on the Laplace transform of occupation time and joint occupation time for Brownian motion with drift.

关键词： time-homogeneous diffusion process occupation time joint occupation time Laplace transform Brownian motion with drift

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 landscape of investigator‐initiated oncology trials conducted in China's Mainland during the past decade(2010–2019)

引用

Cancer Innovation 2023年第1期2卷 79-90页

作者： Ye Cao lin‐Miao Ye Zhong Fan Wei Yang li‐ying chen Yun Mei De‐ying He Wen‐Jin Mo Department of Clinical Research State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina Department of Clinical Research Jieyang People's HospitalJieyangChina Department of Pediatrics the First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina Department of Clinical Trials AI Innovations Yidu Tech Inc.BeijingChina Information Service Department Guangzhou Yushi Medicinal Technology Co.Ltd.GuangzhouChina

The number of clinical trials conducted in China's Mainland,including investigator‐initiated trials(IITs),has increased rapidly in recent ***,there are few data on the characteristics of cancer‐related *** performed a comprehensive analysis of the landscape of cancer‐related IITs in China's Mainland in the past *** cancer‐related IITs registered on two clinical trial registries in the United States(***,***)and China's Mainland(***,ChiCTR)from 2010 to 2019 were *** were reviewed manually to validate classification,subcategorized by cancer type,and stratified by design characteristics to facilitate comparison across cancer types and with other specialties.A total of 8199 cancer‐related IITs were *** number of trials registered annually increased over time,especially in the last 5 *** interventional studies were predominant,randomized double‐blind studies accounted for only 8%of *** the past decade,the trend for interventional studies conducted with different drugs increased year on year,although the increase in hormonal therapy IITs was not ***,cancerrelated IITs were unevenly geographically distributed,with half concentrated in the economically developed cities Shanghai,Beijing,and *** also found an increase in registration before participant enrollment(64.9%for trials in conducted in 2015–2019 vs.40.2%in 2010–2014,p<0.001)and data monitoring committee use(44.5%vs.40.0%,p=0.001)and a decrease in randomization(51.5%vs.62.7%,p<0.001)and funding(36.4%vs.56.3%,p<0.001)between these *** also observed changes in intervention type(decrease in cytotoxic drug therapy[34.8%vs.48.9%,p<0.001];increase in targeted therapy[17.8%vs.14.2%,p=0.004],immune checkpoint inhibitor therapy[6.6%vs.0.0%,p<0.001],and immune cell therapy[9.6%vs.4.5%,p<0.001]).Details of cancer‐related IITs conducted during the past decade illustrate the merits of oncology research

关键词： cancer investigator‐initiated trials landscape clinicaltrials.gov ***

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

Multi-stimuli-responsive aggregation-induced emission copper iodide cluster

引用

Science China Chemistry 2024年第4期67卷 1193-1197页

作者： Bo li Yuan-Yuan liu Peng Luo Ye-Ru liu ying-Jun chen Kai li Shuang-Quan Zang College of Chemistry and Pharmacy Engineering Nanyang Normal UniversityNanyang 473061China Green Catalysis Center and College of Chemistry Zhengzhou UniversityZhengzhou 450001China

Stimuli-responsive luminescent materials have attracted significant attention in the development of smart photoactive materials for both fundamental research and technological *** this work,a new copper iodide cluster(1)with aggregationinduced emission(AIE)characteristic,was obtained combining Cu_(4)I_(4) core with rhodamine B derivative ligand.1 has reversible and distinct multi-stimuli-responsive luminescence for external temperature,volatile organic compound,and mechanical ***,1 exhibited unusual large blue shift(84 nm)after being ground,which originated from the change of intermolecular ***,1 exhibits high oxygen quenching efficiency for 82.2% at 1 *** studies showed that the multi-stimuli-responsive luminescence properties of 1 can be attributed to the regulation of cluster-centered luminescence process,metal-to-ligand charge transfer process,halide-to-metal charge transfer luminescence process and aggregationinduced barrier to oxygen *** work not only reports an AIE copper iodide cluster,but also provides a new strategy to develop multi-stimuli-responsive luminescence materials.

关键词： copper iodide cluster aggregation-induced emission multi-stimuli-response

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：