检索结果-南通市图书馆

Cucurbit[8]uril-regulated face-to-face dimerization assembly enhanced photosensitization and photocatalysis

Science China Chemistry 2024年第5期67卷 1605-1612页

作者： Haigen Nie die hu Zhiyao Zeng Yan Fan Yaxin Zhai Xin-Long Ni Key Laboratory of Chemical Biology and Traditional Chinese Medicine Ministry of Educational of ChinaKey Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan ProvinceCollege of Chemistry and Chemical EngineeringHunan Normal UniversityChangsha 410081China Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Department of PhysicsHunan Normal UniversityChangsha 410081China

In water, N,N′-diarylpyridinium thiazolo[5,4-d]thiazole guests(G1–G3) were encapsulated by cucurbit[8]uril(Q[8]) to construct Q[8]_(3)/G_(2) complexes, in which the encapsulated G molecules exist as an exact face-to-face dimer. These complexation behaviors have been indicated by proton nuclear magnetic resonance(~1H NMR) spectroscopy and isothermal titration calorimetry(ITC),and have been confirmed by X-ray single crystal structural analysis of Q[8]_(3)/G2_(2). While free guests G1–G3 have no ability to sensitize singlet oxygen, they all become effective singlet oxygen sensitizers when complexed with Q[8]. By irradiation of white light, Q[8]_(3)/G_(2) complexes induced selective oxidation of aryl sulfide to aryl sulfoxide in good yields and selective oxidation of dimethyl sulfide(DMS) to dimethyl sulfoxide(DMSO) in excellent yields without over-oxidation to dimethyl sulfone(DMSO_(2))even for elongated irradiation. High-yield photo-oxidation of DMS to DMSO_(2) was only achieved by irradiation of blue light in the presence of Q[8]_(3)/G1_(2), which was also effective in photobleaching of Rhodamine B in water. The higher photo-oxidation power of Q[8]_(3)/G1_(2) has been ascribed to an additional generation of reactive oxygen species besides singlet oxygen.

关键词： host-guest interaction dimerization macrocycles photosensitization

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 behaviors of rod-like reactive shaped charge penetrator and their effects on damage capability

引用

Defence Technology（防务技术） 2024年第2期32卷 242-253页

作者： Tao Sun Haifu Wang Shipeng Wang Chao Ge die hu Pengwan Chen Yuanfeng Zheng Beijing Institute of Technology State Key Laboratory of Explosion Science and TechnologyBeijing100081China Xi'an Institute of Electromechanical Information Technology Xi'an710065China

Formation behaviors of rod-like reactive shaped charge penetrator(RRSCP)and their effects on damage capability are investigated by experiments and numerical *** pulsed X-ray technology and a spaced aluminum/steel plate with the thicknesses of 5 mm/100 mm are *** types of sphericalsegment aluminum-polytetrafluoroethylene-copper(Al-PTFE-Cu)reactive liners with Cu contents of 0%,46.6%,and 66%are fabricated and *** experimental results show that the reactive liners can form excellent rod-shaped penetrators with tail skirts under the shaped charge effect,but the tail skirts disappear over ***,rupturing damage to the aluminum plate and penetration to the steel plate are caused by the RRSCP *** simulation analysis,the RRSCP is formed by a mechanically and chemically coupled response with the reactive liner activated by shock in its outer walls and bottom and then backward overturning,forming a leading reactive penetrator and a following chemical energy *** unique formation structure determines the damage modes of the aluminum plate and the steel *** analysis indicates that the formation behaviors and damage capability of Al-PTFE-Cu RRSCP strongly depend on Cu *** increasing Cu content,the velocity,activation extent,and reaction extent of Al-PTFE-Cu RRSCP decrease,which contribute to elongation and alleviate the negative effects of chemical reactions on elongation,significantly increasing the length-diameter ratio and thus enhancing the capability of steel plate ***,the lower activation extent and energetic density will weaken the RRSCP's capability of causing rupturing damage to the aluminum plate.

关键词： Reactive materials Al-PTFE composites Reactive liner X-ray Penetration

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

Magnetic Co-doped 1D/2D structuredγ-Fe_(2)O_(3)/MoS_(2) effectively activated peroxymonosulfate for efficient abatement of bisphenol A via both radical and non-radical pathways

引用

Frontiers of Environmental Science & Engineering 2024年第3期18卷 143-159页

作者： Junge Xu Dong Wang die hu Ziwei Zhang Junhong Chen Yingmu Wang Yifeng Zhang College of Civil Engineering Fuzhou UniversityFuzhou 350116China China Nuclear Power Engineering Co. Ltd.Shenzhen 518120China Department of Environmental&Resource Engineering Technical University of DenmarkLyngby DK-2800Denmark

Iron-based catalysts have been widely used to treat refractory organic pollutants in *** this paper,magnetic Co-γ-Fe_(2)O_(3)was synthesized by a facile tartaric acid-assisted hydrothermal method,and Co-γ-Fe_(2)O_(3)/MoS_(2) nanocomposite catalyst was obtained via in situ growth of MoS_(2) nanosheets on Co-γ-Fe_(2)O_(3)*** nanocomposite catalysts were used to decompose bisphenol A(BPA)by activating peroxymonosulfate(PMS).It was shown that only 0.15 g/L catalyst and 0.5 mmol/L PMS degraded 10 mg/L of BPA(99.3%within 10 min)in the pH range of 3–*** was activated due to redox cycling among the pairs Co(III)/Co(II),Fe(III)/Fe(II),and Mo(VI)/Mo(IV).Quenching experiments and electron paramagnetic resonance spectroscopy demonstrated that both radical and non-radical pathways were involved in BPA degradation,in which active radical sulfate radical and non-radical singlet oxygen were the main reactive oxygen *** intermediates were identified by liquid chromatography-coupled mass spectrometry,and three possible BPA degradation pathways were *** toxicity of several degradation intermediates was lower,and Co-γ-Fe_(2)O_(3)/MoS_(2) exhibited excellent reusability and could be magnetically recovered.

关键词： Magnetic Co-γ-Fe_(2)O_(3) /MoS_(2) Hydrothermal method Bisphenol A Degradation pathways Toxicity analysis

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

Nanoparticle delivery for central nervous system diseases and its clinical application

引用

Nano Research 2024年第7期17卷 6305-6322页

作者： Lin Tang Rui Zhang Yusi Wang Mohan Liu die hu Yuanda Wang Li Yang Department of Biotherapy Cancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu 610041China

In the treatment of central nervous system(CNS)diseases such as glioma,Alzheimer's disease(AD)and Parkinson's disease(PD),drugs are expected to reach specific areas of the brain to achieve the desired *** a growing number of therapeutic targets have been identified in preclinical studies,the ones that can ultimately be used in the clinic are ***,the research process and clinical application of drugs for treating CNS diseases are still large *** barriers such as the blood‒brain barrier(BBB)act as selective permeable membranes,allowing only certain molecules to enter the brain;this barrier is the major obstacle restricting the arrival of most drugs to brain ***,nanoparticles,including lipid-based,cell-derived biomimetic,polymeric and inorganic nanoparticles,have gained increasing attention because of their ability to cross physiological barriers,and could play an important role as delivery carriers and ***,clinical applications of nanoparticles in CNS diseases are *** review focuses on the progress of current research on the use of nanoparticles for the treatment of CNS diseases to provide additional insight into the treatment of CNS diseases.

关键词： nanoparticles central nervous system(CNS)diseases clinical applications delivery carriers immunomodulators

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

Identification of Key Blood Biomarkers Linking Di(2-ethylhexyl)Phthalate and Autoimmune Diseases in Adolescents Mice

引用

Biomedical and Environmental Sciences 2024年第5期37卷 521-525页

作者： XU Xiao Mei LI Xiao Lu hu die CAI Xiao Yue LI Qi Meng ZHENG Yuan Zhuo CAI Yang QI Yin Yin XU Tao ZHAO Ling Li NING Xia Department of Infectious Diseases Anhui Provincial Children’s HospitalHefei 231000AnhuiChina Department of Toxicology School of Public HealthKey Laboratory of Environmental Toxicology of Anhui Higher Education InstitutesAnhui Medical UniversityHefei 231000AnhuiChina School of Biology Food and EnvironmentHefei UniversityHefei 230601AnhuiChina

Di(2-ethylhexyl)phthalate(DEHP)is a widely used plasticizer known for its reproductive developmental and immune system toxicity,mainly through esophagal,dermal,and respiratory exposure^([1-3]).Maternal exposure to DEHP during pregnancy can lead to adverse birth outcomes in offspring,including impacts on the thyroid system of adolescent offspring^([2-4]).

关键词： Blood respiratory pregnancy

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

Corneal nerve changes by anti-glaucoma medications examined by in vivo confocal microscopy

引用

International Journal of Ophthalmology(English edition) 2024年第9期17卷 1645-1653页

作者： Xin-Yuan Zhu Qing-Shu Ge Zong-Yi Li Long-Fang Zhou Qian-Wen Bu Ying Su Xin-Jie Wang Qing-Jun Zhou Xiao-Jing Pan die hu School of Clinical Medicine Shandong Second Medical UniversityWeifang 261053Shandong ProvinceChina Eye Institute of Shandong First Medical University Qingdao Eye Hospital of Shandong First Medical UniversityQingdao 266071Shandong ProvinceChina State Key Laboratory Cultivation Base Shandong Provincial Key Laboratory of OphthalmologyQingdao 266071Shandong ProvinceChina School of Ophthalmology Shandong First Medical UniversityQingdao 266071Shandong ProvinceChina

AIM:To evaluate the effects of antiglaucoma eye drops on corneal nerves by in vivo confocal microscopy(IVCM).METHODS:This study comprised 79 patients diagnosed with glaucoma and 16 healthy control *** the glaucoma patients,54 were treated with medication,while 25 remained *** corneal images were evaluated by IVCM,and then ACCMetrics was used to calculate the following parameters:corneal nerve fiber density(CNFD),branch density(CNBD),fiber length(CNFL),total branch density(CTBD),fiber area(CNFA),fiber width(CNFW),and fractal dimension(CNFrD).The correlation between IVCM parameters and drugs was evaluated using non-parametric measurements of Spearman’s rank correlation ***:The CNFD was reduced in glaucoma groups compared to healthy subjects(P<0.01).Patients using anti-glaucoma medications exhibited poorer confocal parameters compared to untreated *** the number of medications and usage count increased,CNFD,CNBD,CNFL,CTBD,CNFA,and CNFrD experienced a decline,while CNFW increased(all P<0.01).For the brinzolamide-therapy group,there was a significant decrease in CNFD and CNFL compared to the other monotherapy groups(P<0.001).In the absence of medication,CNFD in males was lower than that in females(P<0.05).Among patients under medication therapy,CNFD remained consistent between males and ***:Antiglaucoma eye drops affect the microstructure of corneal *** and ACCMetrics are useful tools that could be used to evaluate the corneal nerve changes.

关键词： glaucoma therapy corneal nerve fibers in vivo confocal microscopy ACCMetrics

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

Drivers of East Asian summer monsoon variability:Global oceans and the Tibetan Plateau

引用

Science Bulletin 2024年第16期69卷 2487-2490页

作者： Anmin Duan Guoxiong Wu Bin Wang Andrew G.Turner Jun hu Wenting hu Ping Zhang die hu Yuheng Tang Center for Marine Meteorology and Climate Change State Key Laboratory of Marine Environmental ScienceCollege of Ocean and Earth SciencesXiamen UniversityXiamen 361102China State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Department of Atmospheric Sciences School of Ocean and Earth Science and TechnologyUniversity of HawaiiHonolulu 96822USA Department of Meteorology University of ReadingReading RG67BEUK

The East Asian summer monsoon(EASM)profoundly influences the hydroclimate,ecosystems,and water resources of a densely populated region in *** EASM can lead to floods,droughts,significant economic losses,and social disruption in East Asia and Southeast *** the Indian and African monsoons,the EASM is shaped by both tropical and extratropical climate systems,including tropical oceanic modes,cross-equatorial airflows,the Madden-Julian Oscillation,the thermal condition of the Tibetan Plateau,the South Asia High,and the mid-latitude westerly jet.

关键词： Tibetan monsoon East

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

考虑船舶实时位置的船舶尾气排放无人机检测路径优化

引用

大连海事大学学报 2024年第1期50卷 28-38页

作者：胡碟胡志华田曦丹上海海事大学物流研究中心上海201306

为提高无人机检测船舶尾气排放的效率,研究无人机和船舶同时移动情况下的无人机路径规划问题。针对检测过程中船舶位置实时变化的特征,采用“会面”模型求解船舶与无人机的相遇位置,并据此建立一种面向运动船舶以最小飞行距离为目标的... 详细信息

为提高无人机检测船舶尾气排放的效率,研究无人机和船舶同时移动情况下的无人机路径规划问题。针对检测过程中船舶位置实时变化的特征,采用“会面”模型求解船舶与无人机的相遇位置,并据此建立一种面向运动船舶以最小飞行距离为目标的无人机路径优化模型,实现多无人机协同检测。结合序列插入算法设计两阶段算法和基于DroneByDrone和ShipByShip两种船舶序列分解策略的遗传算法,实现不同规模场景下的无人机路径优化。数值试验表明,综合考虑无人机飞行和船舶航行的路径优化方法可以有效提高对运动船舶的检测效率;两种算法均能成功求解模型,但相较两阶段算法,遗传算法求解时间可缩短65.12%,满足求解时效性的要求;无人机飞行距离对无人机数量具有显著敏感性,在相同数据集中,派遣两架无人机相比三架无人机,飞行距离可优化25%,但检测时间会相应延迟8%;根据实验场景综合优化无人机基站位置、无人机数量和速度,可以有效缩短无人机飞行距离,提高检测效率。

关键词：船舶尾气排放无人机(UAV)检测路径优化遗传算法两阶段算法

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

认购碳汇履行生态环境损害责任的司法适用--以二元适用视角为线索

引用

世界林业研究 2024年第4期37卷 131-136页

作者：胡蝶李佳欣黑龙江森工碳资产投资开发有限公司哈尔滨150089 黑龙江省人民检察院哈尔滨150090

认购碳汇是契合“双碳”目标的生态环境损害责任承担方式,多样的实践样态表明其适用呈现出二元视角:以生态环境修复责任为视角和以生态环境损害赔偿责任为视角。在生态环境修复责任视角下,认购碳汇作为一种替代性修复方式既能实现针对... 详细信息

认购碳汇是契合“双碳”目标的生态环境损害责任承担方式,多样的实践样态表明其适用呈现出二元视角:以生态环境修复责任为视角和以生态环境损害赔偿责任为视角。在生态环境修复责任视角下,认购碳汇作为一种替代性修复方式既能实现针对生态环境损害的定向修复,又符合修复责任优先的适用逻辑,但仅能适用于造成碳汇损失或增加碳排放的生态环境纠纷;在生态环境损害赔偿责任视角下,认购碳汇作为赔偿金的使用方式,在部分司法实例中存在着背离主旨和逻辑失恰的过度司法能动问题。认购碳汇是对生态环境损害责任法律体系进行解释性司法能动的创新举措,文中从二元视角对其司法适用进行分析,并在解释性司法能动主义下进行视角匡正,提出在对认购碳汇进行司法适用时应以最大化实现生态环境修复为主旨,且需符合“修复责任优先、赔偿责任兜底”的适用逻辑,结合生态环境修复策略确定适用方式,遵循“数量换算优先,价值换算位后”的原则计算碳汇认购金,并依托交易平台购买类型一致和交易规范的碳汇。

关键词：认购碳汇替代性修复生态环境损害修复责任生态环境损害赔偿责任

来源：

维普期刊数据库

同方期刊数据库

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

数字化背景下政府参与产业链协同创新的演化博弈研究——基于“链长制”的视角

引用

中国地质大学学报（社会科学版） 2024年第4期24卷 116-130页

作者：江喜林胡蝶湖北师范大学经济管理与法学院湖北黄石435000

为揭示数字化背景下政府参与产业链协同创新的演化过程,本研究以“链长制”为蓝本,构建了产业链链主企业、链上企业与地方政府的三方演化博弈模型。通过分析各博弈主体的策略选择及不同选择下均衡点的稳定性,并对结果进行赋值仿真,探讨... 详细信息

为揭示数字化背景下政府参与产业链协同创新的演化过程,本研究以“链长制”为蓝本,构建了产业链链主企业、链上企业与地方政府的三方演化博弈模型。通过分析各博弈主体的策略选择及不同选择下均衡点的稳定性,并对结果进行赋值仿真,探讨关键参数如何影响博弈主体的行为演化。研究发现,政府参与产业链协同创新系统经历了“起步-稳定合作-成熟”三个演化阶段,各阶段分别稳定在不同状态。为避免政府规制时出现企业不合作的情形,政府部门应根据各地市场状况不断调整政策,以达到稳定状态。随着政府激励力度和监管力度的加大,企业参与产业链协同创新的概率增大。此外,数字技术赋能系数的增加会提高企业参与协同创新的概率,而数据安全风险系数的增加则会降低企业参与协同创新的概率。

关键词：协同创新产业链链长制演化博弈

来源：

维普期刊数据库

同方期刊数据库

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：