检索结果-南通市图书馆

Nanomotor-based adsorbent for blood Lead(II)removal in vitro and in pig models

在线全文

学校读者我要写书评

暂无评论

Bioactive Materials 2021年第4期6卷 1140-1149页

作者： Meng Wang Tianyi Bao Wenqiang Yan Dan Fang yueqi yu Zhiyong Liu Guoyong Yin Mimi Wan Chun Mao Dongquan Shi National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials ScienceNanjing Normal UniversityNanjing210023PR China Department of Sports Medicine and Adult Reconstructive Surgery Nanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjing210008PR China Department of Orthopaedics the First Affiliated Hospital of Nanjing Medical University Nanjing210029PR China

Blood lead(Pb(II))removal is very important but *** main difficulty of blood Pb(II)removal currently lies in the fact that blood Pb(II)is mainly complexed with hemoglobin(Hb)inside the red blood cells(RBCs).Traditional blood Pb(II)removers are mostly passive particles that do not have the motion ability,thus the efficiency of the contact between the adsorbent and the Pb(II)-contaminated Hb is relatively ***,a kind of magnetic nanomotor adsorbent with movement ability under alternating magnetic field based on Fe3O4 nanoparticle modified with meso-2,3-dimercaptosuccinic acid(DMSA)was prepared and a blood Pb(II)removal strategy was further *** the removal process,the nanomotor adsorbent can enter the RBCs,then the contact probability between the nanomotor adsorbent and the Pb(II)-contaminated Hb can be increased by the active movement of *** the strong coordination of functional groups in DMSA,the nanomotor adsorbent can adsorb Pb(II),and finally be separated from blood by permanent magnetic *** in vivo extracorporeal blood circulation experiment verifies the ability of the adsorbent to remove blood Pb(II)in pig models,which may provide innovative ideas for blood heavy metal removal in the future.

关键词： Heavy metal poisoning Blood lead(II)poisoning Magnetic nanomotor adsorbent Alternating magnetic field meso-2 3-Dimercaptosuccinic acid

Response of warm season secondary pollutants to emissions and meteorology in the North China Plain region during 2018-2022

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

Atmospheric and Oceanic Science Letters 2024年第4期17卷 58-64页

作者： yueqi Gao Siyu Wang Zhaolei Zhang Wenxuan yu Shuai Wang Shengqiang Zhu Peng Wang Yan Li Yele Sun Hongliang Zhang Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention Department of Environmental Science&EngineeringFudan UniversityShanghaiChina Department of Atmospheric and Oceanic Sciences Fudan UniversityShanghaiChina Shanghai Key Laboratory of Ocean-land-atmosphere Boundary Dynamics and Climate Change ShanghaiChina IRDR ICoE on Risk Interconnectivity and Governance on Weather/Climate Extremes Impact and Public Health Fudan UniversityShanghaiChina State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijingChina Institute of Eco-Chongming ShanghaiChina

自2013年起中国空气质量虽改善,但华北平原(NCP)重污染仍存在且二次污染加剧,而人们对其成因和变化了解有限.本研究利用2018-2022年数据,借助CMAQ模型探讨此污染响应.结果显示,在2018-2022年间,PM_(2.5)浓度显著下降31%-37%,O_(3)和NO_... 详细信息

自2013年起中国空气质量虽改善,但华北平原(NCP)重污染仍存在且二次污染加剧,而人们对其成因和变化了解有限.本研究利用2018-2022年数据,借助CMAQ模型探讨此污染响应.结果显示,在2018-2022年间,PM_(2.5)浓度显著下降31%-37%,O_(3)和NO_(2)的年下降速率分别为1%和0.5%SIA和SOA也显著减少,每年分别减少9%和6%PM_(2.5)主要因排放减少而下降,而O_(3)则受气象影响而波动.硫酸盐和铵下降的主因是减排,而硝酸盐对气象变化敏感排放和气象变化对SOA的总体减少同样重要,但人为SOA对排放控制敏感生物SOA易受气象变化影响.研究强调了控制人为排放对缓解NCP地区夏季二次污染的重要性.

关键词： PM_(2.5) 二次污染物人为排放气象华北平原

在线全文

学校读者我要写书评

暂无评论

作业车间关键柔性的描述及其度量研究综述

计算机集成制造系统 2015年第12期21卷 3153-3165页

作者：黄学文赵兴野于跃绮孙娜大连理工大学管理与经济学部辽宁大连116024

为描述和度量作业制造系统的柔性,在制造系统柔性分类的基础上分析了作业车间的关键柔性,即机器(machine)柔性、工序顺序(operation)柔性和加工路径(routing)柔性,系统地评述了机器柔性、工序顺序柔性和加工路径柔性的描述方法和度量方... 详细信息

为描述和度量作业制造系统的柔性,在制造系统柔性分类的基础上分析了作业车间的关键柔性,即机器(machine)柔性、工序顺序(operation)柔性和加工路径(routing)柔性,系统地评述了机器柔性、工序顺序柔性和加工路径柔性的描述方法和度量方法,并综述了三种关键柔性对调度的影响,最后讨论了未来可能的研究方向。

关键词：机器柔性工序顺序柔性加工路径柔性作业车间柔性调度

可持续发展背景下大型建筑企业ESG绩效评价研究

在线全文

学校读者我要写书评

暂无评论

建筑经济 2022年第S2期43卷 372-376页

作者：侯雨凝于跃奇辽宁大学商学院辽宁沈阳110136

伴随着我国建筑业的飞速发展,由融资约束、市场竞争力不足和污染环境等一系列经济社会问题导致我国大型建筑企业可持续发展能力不足。基于此,本研究在考虑经济、社会、技术、环境等因素的基础上构建大型建筑企业ESG绩效评价体系。运用熵... 详细信息

伴随着我国建筑业的飞速发展,由融资约束、市场竞争力不足和污染环境等一系列经济社会问题导致我国大型建筑企业可持续发展能力不足。基于此,本研究在考虑经济、社会、技术、环境等因素的基础上构建大型建筑企业ESG绩效评价体系。运用熵权-TOPSIS评价模型对大型建筑企业ESG绩效进行评价研究,并提出有助于大型建筑企业ESG绩效提升的对策建议。研究结果有助于为大型建筑企业制定发展战略、提高融资能力、防范经营风险提供决策依据。

关键词：大型建筑企业 ESG绩效评价熵权法 TOPSIS模型

Linear-Quadratic Pareto Cooperative Game for Mean-Field Backward Stochastic System

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science & Complexity 2024年第3期37卷 947-964页

作者： WANG yu School of Control Science and Engineering Shandong UniversityJinan 250061China

This paper focuses on a Pareto cooperative differential game with a linear mean-field backward stochastic system and a quadratic form cost functional. Based on a weighted sum optimality method, the Pareto game is equivalently converted to an optimal control problem. In the first place,the feedback form of Pareto optimal strategy is derived by virtue of decoupling technology, which is represented by four Riccati equations, a mean-field forward stochastic differential equation(MF-FSDE),and a mean-field backward stochastic differential equation(MF-BSDE). In addition, the corresponding Pareto optimal solution is further obtained. Finally, the author solves a problem in mathematical finance to illustrate the application of the theoretical results.

关键词： Backward stochastic differential equation linear-quadratic control mean-field Pareto optimality

Topological Stability and Entropy for Certain Set-valued Maps

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2024年第4期40卷 962-984页

作者： yu ZHANG yu Jun ZHU School of Mathematical Sciences Xiamen UniversityXiamen 361005P.R.China

In this paper,the dynamics(including shadowing property,expansiveness,topological stability and entropy)of several types of upper semi-continuous set-valued maps are mainly considered from differentiable dynamical systems points of *** is shown that(1)if f is a hyperbolic endomorphism then for eachε>0 there exists a C^(1)-neighborhood U of f such that the induced set-valued map F_(f,U)has theε-shadowing property,and moreover,if f is an expanding endomorphism then there exists a C^(1)-neighborhood U of f such that the induced set-valued map F_(f,U)has the Lipschitz shadowing property;(2)when a set-valued map F is generated by finite expanding endomorphisms,it has the shadowing property,and moreover,if the collection of the generators has no coincidence point then F is expansive and hence is topologically stable;(3)if f is an expanding endomorphism then for eachε>0 there exists a C^(1)-neighborhood U of f such that h(F_(f,U,ε))=h(f);(4)when F is generated by finite expanding endomorphisms with no coincidence point,the entropy formula of F is ***,the dynamics of the set-valued maps based on discontinuous maps on the interval are also considered.

关键词： Set-valued map orbit space hyperbolic endomorphism perturbation shadowing expansiveness topological stability entropy

A new liquid membrane diffusion model for characterizing the adsorption kinetics of europium by using a continuous measurement of adsorption platform

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2024年第1期35卷 59-72页

作者： Hao-Qi yu Tao yu Jian-Hua Ye State Key Laboratory of Nuclear Resources and Environment East China University of TechnologyNanchang 330013China CGN Cangnan Nuclear Power Co. Ltd.Cangnan 325800China Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices East China University of TechnologyNanchang 330013China School of Nuclear Science and Engineering East China University of TechnologyNanchang 330013China

To explore the kinetic adsorption under continuous and nonequilibrium states, an integration of continuous measurement and adsorption platform kinetics method was proposed, which was initially called the ICM-AP kinetics method, and a corresponding kinetic adsorption experimental method was developed. Adsorption experiments of europium(Eu) on Ca-bentonite,Na-bentonite, and the D231 cation exchange resin were performed using the ICM-AP kinetics method and continuous measurements. Because the kinetic experimental results observed in this study were different from those of traditional batch adsorption data, pseudo-first-order or pseudo-second-order kinetic models were unsuitable for fitting the experimental ***, a liquid membrane diffusion(LMD) model was developed based on the assumption of simultaneous adsorption/desorption to discuss the mechanism of kinetic adsorption. The kinetic adsorption mechanism was also studied by using *** results indicated that the proposed adsorption model can fit the experimental data more suitably, and the adsorption/desorption behaviors of Eu on bentonite and the D231 resin were simultaneously observed, suggesting that the adsorption kinetics of Eu(Ⅲ) was mainly dominated by hydrated Eu(Ⅲ) ions on the liquid membrane.

关键词： ICM-AP method LMD model Adsorption mechanism Eu(Ⅲ)

Device design principles and bioelectronic applications for flexible organic electrochemical transistors

在线全文

学校读者我要写书评

暂无评论

International Journal of Extreme Manufacturing 2024年第1期6卷 126-153页

作者： Lin Gao Mengge Wu Xinge yu Junsheng yu State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of China(UESTC)Chengdu 610054People’s Republic of China Department of Biomedical Engineering City University of Hong KongHong Kong Special Administrative Region of ChinaPeople’s Republic of China

Organic electrochemical transistors(OECTs) exhibit significant potential for applications in healthcare and human-machine interfaces, due to their tunable synthesis, facile deposition, and excellent biocompatibility. Expanding OECTs to the fexible devices will significantly facilitate stable contact with the skin and enable more possible bioelectronic applications. In this work,we summarize the device physics of fexible OECTs, aiming to offer a foundational understanding and guidelines for material selection and device architecture. Particular attention is paid to the advanced manufacturing approaches, including photolithography and printing techniques, which establish a robust foundation for the commercialization and large-scale fabrication. And abundantly demonstrated examples ranging from biosensors, artificial synapses/neurons, to bioinspired nervous systems are summarized to highlight the considerable prospects of smart healthcare. In the end, the challenges and opportunities are proposed for fexible OECTs. The purpose of this review is not only to elaborate on the basic design principles of fexible OECTs, but also to act as a roadmap for further exploration of wearable OECTs in advanced bio-applications.

关键词： flexible organic electrochemical transistors wearable bioelectronics manufacturing approaches device physics neuromorphic applications

A guidance and control design with reduced information for a dual-spin stabilized projectile

在线全文

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2024年第3期33卷 494-505页

作者： yu Wang Jiyan yu Xiaoming Wang Jia Fangxiu Intelligent Ammunition Technology National Defense Key Discipline Laboratory Nanjing University of Science and TechnologyNanjingJiangsu210094China

In this paper,an integrated guidance and control method based on an adaptive path-following controller is proposed to control a spin-stabilized projectile with only translational motion information under the constraint of an actuator,uncertainties in aerodynamic parameters and measurements,and control system *** to the fairly high rotation speed,the dynamic model of this missile is strongly nonlinear,uncertain and coupled in pitch,yaw and roll channels.A theoretical equivalent resultant force and uncertainty compensation method are comprehensively used to realize decoupling of pitch and *** response to the strong nonlinear and time-varying characteristics of the dynamic system,the quasi-linear model whose parameters are obtained by interpolation of points selected as the segmentation points in the trajectory envelope,is used for calculation in each *** cope with the system uncertainty caused by model approximation,parameter uncertainty and ballistic interference,an extended state estimator is used to compensate the output feedback according to the test ballistic *** order to improve the tracking efficiency and ensure the tracking error convergence with only translational motion information,the virtual guide point,whose derivative is deduced according to the Lyapunov principle,is calculated in real time according to the projection relationship between the real-time position and the reference trajectory,and a virtual line-of-sight angle and the backstepping method are used for the design of the guidance and control *** order to avoid the influence of control input saturation on the guidance and control performance due to the actuator limitation and improve the robustness of the system,an anti-saturation compensator is designed according to the two-step *** feasibility and effectiveness of the path-following controller is verified through closed-loop flight simulations with measurement,control,and condition *** result

关键词： Spin-stabilized projectile Reduced information Path-following control Extended state observer Coupled nonlinear system Input saturation