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Recent advances in flexible self-oscillating actuators

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eScience 2024年第5期4卷 91-109页

作者： Jingjing Li wenjin guo Weiqiang Zhao Yutian Zhu Jie Bai Zhigang Xia Xiang Zhou Zunfeng Liu School of Textile Science and Engineering State Key Laboratory of New Textile Materials and Advanced Processing TechnologiesWuhan Textile UniversityWuhan 430200China State Key Laboratory of Medicinal Chemical Biology Key Laboratory of Functional Polymer MaterialsTianjin Key Laboratory of Functional Polymer MaterialsSmart Sensing Interdisciplinary Science CenterCollege of ChemistryNankai UniversityTianjin 300350China College of Material Chemistry and Chemical EngineeringKey Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationKey Laboratory of Organosilicon Material TechnologyHangzhou Normal UniversityHangzhou 311121China College of Chemistry and Chemical Engineering Inner Mongolia Univ TechnolChem Engn CollHohhot 010051China Department of Science China Pharmaceutical UniversityNanjing 211198China

Soft actuators are constituted by a type of intelligent materials,and they can generate reversible mechanical motions under external *** usually achieve continuous actuation by manual turning on or off the power supply,which significantly increases the operation *** contrast,self-oscillating actuators can achieve autonomous motions under constant stimuli,and have recently attained great advancements,as well as promoted the development of autonomous soft *** this review,the latest achievements of soft oscillators are ***,the self-oscillating mechanisms mainly including oscillating chemical reactions and self-shadowing-induced mechanical negative feedback loops are *** oscillators constructed with various materials and configurations,driven by different stimuli and applied in different fields are then presented in ***,the difficulties and hopes of oscillators are ***,self-oscillating actuators are in the stage of vigorous development,and we believe that in the future,they will be used in various fields and make many scenarios more intelligent and autonomous.

关键词： Oscillating actuator Artificial muscles Polymer composite Biomimetic Smart materials

Innovations in spider silk-inspired artificial gel fibers:Methods,properties,strengthening,functionality,and challenges

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SusMat 2024年第3期4卷 104-163页

作者： Abdul Qadeer Khan wenjin guo Sitong Li Yutian Zhu Jie Bai Zunfeng Liu Weiqiang Zhao Xiang Zhou State Key Laboratory of Medicinal Chemical Biology Key Laboratory of Functional Polymer MaterialsTianjin Key Laboratory of Functional Polymer MaterialsSmart Sensing Interdisciplinary Science CenterCollege of ChemistryNankai UniversityTianjinChina Department of Science China Pharmaceutical UniversityNanjingChina College of Material Chemistry and Chemical EngineeringHangzhou Normal UniversityHangzhouChina Chemical Engineering College Inner Mongolia University of TechnologyHohhotChina

Spider silk,possessing exceptional combination properties,is classified as a biogel ***,it serves as a valuable origin of inspiration for the advancement of various artificial gel fiber materials with distinct *** fibers exhibit promising potential for utilization in diverse fields,including smart textiles,artificial muscle,tissue engineering,and strain ***,there are still numerous challenges in improving the performance and functionalizing applications of spider silk-inspired artificial gel ***,to gain a penetrating insight into bioinspired artificial gel fibers,this review provided a comprehensive overview encompassing three key aspects:the fundamental design concepts and implementing strategies of gel fibers,the properties and strengthening strategies of gel fibers,and the functionalities and application prospects of gel *** particular,multiple strengthening and toughening mechanisms were introduced at micro,nano,and molecular-level structures of gel ***,the existing challenges of gel fibers are *** review aims to offer significant guidance for the development and application of artificial gel fibers and inspire further research in the field of high-performance gel fibers.

关键词： artificial gel fibers biomimetic functionality spider silk strengthening

Progress in the biological function of alpha-enolase

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Animal Nutrition 2016年第1期2卷 12-17页

作者： Hong Ji Jianfa Wang Jingru guo Yue Li Shuai Lian wenjin guo Huanmin Yang Fanzhi Kong Li Zhen Li guo Yanzhi Liu College of Animal Science and Veterinary Medicine Heilongjiang Bayi Agricultural University

Alpha-enolase(ENO1), also known as 2-phospho-D-glycerate hydrolase, is a metalloenzyme that catalyzes the conversion of 2-phosphoglyceric acid to phosphoenolpyruvic acid in the glycolytic pathway. It is a multifunctional glycolytic enzyme involved in cellular stress, bacterial and fungal infections, autoantigen activities, the occurrence and metastasis of cancer, parasitic infections, and the growth, development and reproduction of organisms. This article mainly reviews the basic characteristics and biological functions of ENO1.

关键词： α-enolase Glycolysis Plasma plasminogen Cancer Parasite

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电池管理系统的设计

现代电子技术 2016年第10期39卷 149-151,155页

作者：郭文进福建睿能科技股份有限公司福建福州350008

随着计算机网络以及电池技术的迅猛发展,蓄电池广泛应用于各行各业中,但因外界环境、参数设定、待机时间长等因素使得对其掌控难度大。该文设计的电池管理系统,利用GPRS技术实现灵活、安全的数据传输,采集模块和处理系统之间、处理系统... 详细信息

随着计算机网络以及电池技术的迅猛发展,蓄电池广泛应用于各行各业中,但因外界环境、参数设定、待机时间长等因素使得对其掌控难度大。该文设计的电池管理系统,利用GPRS技术实现灵活、安全的数据传输,采集模块和处理系统之间、处理系统和用户之间分别采用C/S,B/S架构,使用户能够实时方便地监测电池的使用情况,具有很高的应用价值。

关键词：电池管理系统 GPRS 实时监测数据传输

Effect of Palrnatine on lipopolysaccharide-induced acute lung injury by inhibiting activation of the Akt/NF-κB pathway

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2021年第11期22卷 929-940页

作者： Xingchi KAN Yingsheng CHEN Bingxu HUANG Shoupeng FU wenjin guo Xin RAN Yu CAO Dianwen XU Ji CHENG Zhanqing YANG Yanling XU Department of Theoretic Veterinary Medicine College of Veterinary MedicineJilin UniversityChangchun 130012China Department of Respiratory Medicine the Second HospitalJilin UniversityChangchun 130012China

Inflammation plays an important role in the development of acute lung injury(ALI).Severe pulmonary inflammation can cause acute respiratory distress syndrome(ARDS)or even *** of proinflammatory interleukin-1β(IL-1β)and inducible nitric oxide synthase(iNOS)in the process of pulmonary inflammation will further exacerbate the severity of *** purpose of this study was to explore the effect of Palrnatine(Pa)on lipopolysaccharide(LPS)-induced mouse ALI and its underlying ***,a natural product,has a wide range of pharmacological activities with the potential to protect against lung *** blotting and quantitative real-time polymerase chain reaction(qRT-PCR)assays were performed to detect the expression and translation of inflammatory genes and proteins in vitro and in *** was used to detect the degree of P65 translocation into the *** also used molecular modeling to further clarify the mechanism of *** results showed that Pa pretreatment could significantly inhibit the expression and secretion of the inflammatory cytokine IL-1β,and significantly reduce the protein level of the proinflammatory protease iNOS,in both in vivo and in vitro models induced by *** mechanism studies showed that Pa could significantly inhibit the activation of the protein kinase B(Akt)/nuclear factor-κB(NF-κB)signaling pathway in the LPS-induced ALI mode and in LPS-induced RAW264.7 *** molecular dynamics simulation,we observed that Pa was bound to the catalytic pocket of Akt and effectively inhibited the biological activity of *** results indicated that Pa significantly relieves LPS-induced ALI by activating the Akt/NF-κB signaling pathway.

关键词： Acute lung injury Palrnatine Lipopolysaccharide(LPS) Protein kinase B/nuclear factor-κB(Akt/NF-κB)

基于金属配位键的自修复、可重塑聚丁二烯橡胶的合成及性能

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高等学校化学学报 2020年第9期41卷 2090-2098页

作者：郭文瑾王晓晗李想李洋孙俊奇吉林大学化学学院超分子结构与材料国家重点实验室长春130012

橡胶材料通常因经过硫化及补强等工艺处理而呈现出热固性,因而难以被回收处理,容易造成严重的资源浪费和环境污染.本文通过在聚丁二烯上修饰羧酸基团,再加入锌离子(Zn^2+)与羧酸配位,制备了基于金属配位键交联的自修复橡胶(PB-COOH/Zn^2... 详细信息

橡胶材料通常因经过硫化及补强等工艺处理而呈现出热固性,因而难以被回收处理,容易造成严重的资源浪费和环境污染.本文通过在聚丁二烯上修饰羧酸基团,再加入锌离子(Zn^2+)与羧酸配位,制备了基于金属配位键交联的自修复橡胶(PB-COOH/Zn^2+).该橡胶具有良好的机械性能和优秀的自修复及重塑性能,在70℃下修复3 h,其韧性可以恢复到初始强度,修复效率可达100%.PB-COOH/Zn^2+较高的聚合物链段运动能力及配位键交联网络良好的动态性不仅赋予其优异的修复性能,还使得其在较温和的条件下可以进行多次重塑,在70℃及5 MPa的条件下重塑3次仍能保持原有的机械性能.此外,通过在PB-COOH/Zn^2+中掺杂适量的碳纳米管,不仅增强了其机械性能,还使其具备了电致修复及传感能力,扩宽了PB-COOH/Zn^2+作为环境友好型材料的应用前景.

关键词：配位作用聚丁二烯自修复重塑

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学科核心素养下的高中数学单元作业设计研究

西北成人教育学院学报 2023年第5期 93-98页

作者：郭文锦兰州市第五十七中学甘肃兰州730070

在立德树人为教育的根本任务的指引下,高中数学作业不应以碎片化的形式呈现,应注重单元作业设计,加深学生对单元知识点的整体理解。本文结合高中数学作业设计的现状,对单元作业设计的目标性原则、整理性原则、梯度性原则、多样性原则、... 详细信息

在立德树人为教育的根本任务的指引下,高中数学作业不应以碎片化的形式呈现,应注重单元作业设计,加深学生对单元知识点的整体理解。本文结合高中数学作业设计的现状,对单元作业设计的目标性原则、整理性原则、梯度性原则、多样性原则、评价性原则进行了概述,并结合具体单元内容,对单元作业中的问题型作业、梳理型作业、探究性作业、阅读型作业进行了举例说明。

关键词：数学核心素养单元作业设计单元教学

银掺杂镍的硫醇盐类团簇用于非均相电催化二氧化碳还原

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Science China Materials 2023年第1期66卷 407-412页

作者：田凡李旺轩郭文锦李广芳陈嵘 School of Chemistry and Environmental Engineering Wuhan Institute of TechnologyWuhan 430205China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China Key Laboratory of Material Chemistry for Energy Conversion and Storage(Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service FailureSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074China

精细调控具有原子尺度精确的团簇结构并将其应用于非均相催化研究,对于从分子水平阐明催化反应机制,明确催化反应活性位具有重要意义.本文基于环已硫醇保护的Ni_(4)团簇体系,成功制备了一种全新的Ni_(3)Ag_(2)双金属团簇,该团簇为Ni_(4... 详细信息

精细调控具有原子尺度精确的团簇结构并将其应用于非均相催化研究,对于从分子水平阐明催化反应机制,明确催化反应活性位具有重要意义.本文基于环已硫醇保护的Ni_(4)团簇体系,成功制备了一种全新的Ni_(3)Ag_(2)双金属团簇,该团簇为Ni_(4)团簇中一个Ni原子被两个Ag原子取代的结果.研究发现将该团簇用于非均相电催化二氧化碳还原,Ni_(3)Ag_(2)双金属团簇催化二氧化碳还原产生一氧化碳的法拉第效率可达90%以上,而母体结构Ni_(4)团簇的催化产物主要为氢气.对照实验与DFT理论计算结果表明,电解中去配体过程对于Ni_(3)Ag_(2)团簇的高选择性催化具有重要作用.其催化二氧化碳选择性还原的主要活性位为去配体后暴露出的Ni原子而非Ag原子.

关键词：非均相催化二氧化碳还原团簇结构活性位一氧化碳选择性催化选择性还原原子尺度

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数字电视节目切换方法的研究及应用系统设计

电视技术 2012年第22期36卷 20-22,32页

作者：杨秀芝郭文进福州大学物理与信息工程学院福建福州350108 福建睿能电子有限公司福建福州350003

数字电视节目的切换是数字电视的重要业务之一。提出了一种数字电视节目切换方法,可以将一路数字电视传输流中的一套或多套节目替换为另一数字电视传输流中的一套或多套节目,并使替换后的数字电视传输流保持有相同的各种标识符。利用该... 详细信息

数字电视节目的切换是数字电视的重要业务之一。提出了一种数字电视节目切换方法,可以将一路数字电视传输流中的一套或多套节目替换为另一数字电视传输流中的一套或多套节目,并使替换后的数字电视传输流保持有相同的各种标识符。利用该方法可以实现数字电视节目的无缝切换,且电路具有结构简单、硬件设备少、成本低、速度快等优点。

关键词：数字电视节目插播无缝切换调度算法