检索结果-南通市图书馆

A Superhydrophobic/Electrothermal/Photothermal Synergistically Anti-icing Strategy with Excellent Self-healable and Anti-abrasion Property

引用

Journal of Bionic Engineering 2021年第5期18卷 1147-1156页

作者： Peng Wang Jian Wang Wei Duan Chunyan Li huilong han Qing Xie School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBaodingChina Hebei Key Laboratory of Electric Machinery Health Maintenance and Failure Prevention North China Electric Power UniversityBaoding 071003China School of Electrical and Electronic Engineering North China Electric Power UniversityBaodingHebeiChina

Unexpected ice accumulation tends to cause many problems or even disasters in our daily *** on the superior electrothermal and photothermal function of the carbon nanotubes,we introduced a superhydrophobic/electrothermal/photothermal synergistically anti-icing *** a voltage of 15 V was applied to the superhydrophobic sample,the surface could rapidly melt the ice layer(~3 mm thickness)within 530 s at the environmental temperature of-25℃.When the near-infrared light(808 nm)irradiates on the superhydrophobic sample,the ice could be rapidly removed after 460 *** was found that the superhydrophobicity helps the melted water to roll off immediately,and then solves the re-freeze problem the traditional surfaces ***,the ice can be completely melted with 120 s when the superhydrophobic/electrothermal/photothermal synergistically anti-icing strategy was *** improve the mechanical robustness for practical application,both nanoscale carbon nanotubes and microscale carbon powders were utilized to construct hierarchical *** these dual-scale fillers were sprinkled onto the semi-cured elastomer substrate to prepare partially embedded *** hierarchical structure and partially embedded structure were obtained after completely curing the substrate,which imparts excellent abrasion resistance(12.50 kPa,16.00 m)to the prepared ***,self-healable poly(urea–urethane)elastomer was introduced as the ***,the cutted superhydrophobic sample can be mended by simply contacting at room temperature.

关键词： Superhydrophobic Electrothermal Photothermal Self-healing

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

A Passive Anti-icing Strategy Based on a Superhydrophobic Mesh with Extremely Low Ice Adhesion Strength

引用

Journal of Bionic Engineering 2021年第1期18卷 55-64页

作者： Peng Wang Ziqiang Li Qing Xie wei Duan Xinchun Zhang huilong han School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBaoding 071000China Hebei Key Laboratory of Electric Machinery Health Maintenance&Failure Prevention North China Electric Power UniversityBaoding 071003China School of Electrical and Electronic Engineering North China Electric Power UniversityBaoding 071003China

Although superhydrophobic materials have attracted much research interest in anti-icing,some controversy still *** this research,we report a cost-effective method used to verify the contribution of area fraction to ice adhesion *** tried to partially-embed siliea nanopnarticles into microscale fabrics of a commercial polyamide ***,the area fraction could be determined by altering the mesh ***,the ice adhesion strength decreases as the area fraction *** ice adhesion strength of~1.9 kPa and a delayed freezing time of~1048 s can be *** attribute the low ice adhesion strength to the combination of superhydro-phobicity and stress *** superhydrophobicity prohibits the water from penetrating into the voids of the meshes,and the small actual contact area leads to stress concentration which promotes interfacial crack ***,our superhydrophobic mesh simultaneously exhibis a micro-nano hierarchical structure and a partally-cmbedded ***,the as-prepared superhydrophobic mesh retained the ieephobicity after 20 icingldeicing cycles,and maintained its superhydrophobicity even afier 60 sandpaper-abrasion cycles and a 220"C thermal treatment.

关键词： bionic superhydrophobic anti-icing mechanical robustness hierarchical structure partially-embedded structure

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

A Robust Superhydrophobic Smart Coating with Reversible Thermochromic and Photochromic Property

引用

Journal of Bionic Engineering 2022年第6期19卷 1589-1600页

作者： Peng Wang Xuesong Zhang Zhihao Wang Tao Chen Honglian Zhang Wei Duan huilong han School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBaoding071000China Hebei Key Laboratory of Electric Machinery Health Maintenance and Failure Prevention North China Electric Power UniversityBaoding071003China

Both thermochromic and photochromic coating have attracted many attentions due to their widely applications,but the low stability is a big *** by the lotus leaf,to endow the chromic coating with superhydrophobicity is a possible *** this research,a dual response coating was prepared by adding photochromic and thermochromic particles *** prepared sample demonstrated at least four-state color switching,which can be successfully used in tactile imaging,multi-color fabric,erasable record,and security *** superhydrophobicity was achieved by introducing vinyl-terminated polydimethylsiloxane,which not only offers low surface energy but also can cross-link with the particles to increase the ***,the prepared sample maintained superhydrophobicity after various kinds of destruction(such as sandpaper abrasion,corrosive liquid attack,ultrasonic treatment,UV irradiation,and high-speed drops/turbulent jets impact).Even though the superhydrophobicity can be destroyed by plasma etching,it can be recovered after 12 h at room temperature.

关键词： Bionic coating Superhydrophobic Thermochromic Photochromic Robust

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

A Superhydrophobic Hydrogel for Self-Healing and Robust Strain Sensor with Liquid Impalement Resistance

引用

Chinese Journal of Chemistry 2021年第12期39卷 3393-3398页

作者： Peng Wang Tao Chen Xuesong Zhang Wei Duan Chongyuan Zhang huilong han Qing Xie School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBaodingHebei 071003China Hebei Key Laboratory of Electric Machinery Health Maintenance&Failure Prevention North China Electric Power UniversityBaodingHebei 071003China School of Electrical and Electronic Engineering North China Electric Power UniversityBaodingHebei 071003China

The superhydrophobic strain sensor is a fantastic direction,which could protect the strain sensor in harsh ***,the self-healing superhydrophobic strain sensor has not been *** this research,we developed a superhydrophobic strain sensor,which demonstrated excellent self-healing,mechanical robustness,and liquid impalement resistance *** key innovation is to partially embed hydrophobic graphene and carbon nanotubes into the hydrogel *** hodrogel substrate endows the sample with self-healing *** graphene,carbon nanotubes and hydrogel together lead to an accurate and real-time monitoring of human ***,the prepared sample demonstrated super-robust superhydrophobicity,which retained superhydrophobicity after many kinds of damage(such as 1000%stretch,10000 stretching-releasing cycles,hand-rub,tape-peeling,and high-speed drop/jet impact).

关键词： Hydrophobic effect Gels Graphene Strain sensor Self-healing

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

星形节点周期性蜂窝结构的面内动力学响应特性研究

引用

振动与冲击 2017年第23期36卷 223-231页

作者：韩会龙张新春华北电力大学能源动力与机械工程学院河北保定071003

利用显式动力有限元法数值研究了冲击载荷下星形节点周期性蜂窝结构的面内冲击动力学响应特性。在保证各胞元壁长不变的前提下,通过改变胞壁厚度、内凹箭头节点间夹角和韧带长度等微结构参数,首先建立了星形节点周期性蜂窝结构的有限元... 详细信息

利用显式动力有限元法数值研究了冲击载荷下星形节点周期性蜂窝结构的面内冲击动力学响应特性。在保证各胞元壁长不变的前提下,通过改变胞壁厚度、内凹箭头节点间夹角和韧带长度等微结构参数,首先建立了星形节点周期性蜂窝结构的有限元模型。在此基础上,讨论了冲击速度和微结构参数对星形蜂窝材料的宏/微观变形、密实应变和动态冲击强度的影响。结果表明,由于胞壁受膜力和弯矩的耦合作用,在中、低速冲击载荷下,试件表现出负泊松比材料在轴向压缩时的"颈缩"现象。基于能量效率法和一维冲击波理论,给出了星形蜂窝结构密实应变和动态平台应力的经验公式,以预测多胞材料的动态承载能力。该研究将为拉胀多胞材料冲击动力学性能的多目标优化设计提供新的设计思路。

关键词：星形节点蜂窝结构负泊松比密实应变平台应力微结构

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

负泊松比蜂窝材料的动力学响应及能量吸收特性

引用

爆炸与冲击 2019年第1期39卷 44-54页

作者：韩会龙张新春王鹏华北电力大学机械工程系河北保定071003

针对传统正方形蜂窝,通过用更小的双向内凹结构胞元替代原蜂窝材料的结构节点,得到了一种具有负泊松比特性的节点层级蜂窝材料模型。利用显式动力有限元方法,研究了冲击荷载作用下该负泊松比蜂窝结构的动力学响应及能量吸收特性。研究... 详细信息

针对传统正方形蜂窝,通过用更小的双向内凹结构胞元替代原蜂窝材料的结构节点,得到了一种具有负泊松比特性的节点层级蜂窝材料模型。利用显式动力有限元方法,研究了冲击荷载作用下该负泊松比蜂窝结构的动力学响应及能量吸收特性。研究结果表明,除了冲击速度和相对密度,负泊松比蜂窝材料的动力学性能亦取决于胞元微结构。与正方形蜂窝相比,该负泊松比层级蜂窝材料的动态承载能力和能量吸收能力明显增强。在中低速冲击下,试件表现为拉胀材料明显的"颈缩"现象,并展示出负泊松比材料独特的平台应力增强效应。基于能量吸收效率方法和一维冲击波理论,给出了负泊松比蜂窝材料的密实应变和动态平台应力的经验公式,以预测该蜂窝材料的动态承载能力。本文的研究将为负泊松比多胞材料冲击动力学性能的多目标优化设计提供新的设计思路。

关键词：多胞材料负泊松比平台应力增强效应能量吸收

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

分子生物学技术在土壤生物修复中的应用及展望

引用

化工进展 2007年第6期26卷 782-787页

作者：韩慧龙刘铮清华大学化学工程系北京100084

综述了分子生物学技术包括环境微生物群落降解基因分析、16S rRNA序列分析技术以及荧光原位杂交技术在生物修复技术中跟踪污染土壤中降解微生物行为、监测降解基因和微生物群落变化,揭示了其中的分子机制的应用现状,对各项技术应用中需... 详细信息

综述了分子生物学技术包括环境微生物群落降解基因分析、16S rRNA序列分析技术以及荧光原位杂交技术在生物修复技术中跟踪污染土壤中降解微生物行为、监测降解基因和微生物群落变化,揭示了其中的分子机制的应用现状,对各项技术应用中需要注意的问题进行了讨论并对其发展前景进行了展望。

关键词：生物修复分子生物学技术降解基因 16S rRNA FISH

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 Tartary Buckwheat Genome Provides Insights into Rutin Biosynthesis and Abiotic Stress Tolerance

引用

Molecular Plant 2017年第9期10卷 1224-1237页

作者： Zhang, Lijun Li, Xiuxiu Ma, Bin Gao, Qiang Du, huilong han, Yuanhuai Li, Yan Cao, Yinghao Qi, Ming Zhu, Yaxin Lu, Hongwei Ma, Mingchuan Liu, Longlong Zhou, Jianping Nan, Chenghu Qin, Yongjun Wang, Jun Cui, Lin Liu, Huimin Liang, Chengzhi Qiao, Zhijun Shanxi Acad Agr Sci Inst Crop Germplasm Resources Res Taiyuan 030031 Shanxi Peoples R China Minist Agr Key Lab Crop Gene Resources & Germplasm Enhanceme Taiyuan 030031 Shanxi Peoples R China Shanxi Key Lab Genet Resources & Genet Improvemen Taiyuan 030031 Shanxi Peoples R China Chinese Acad Sci Inst Genet & Dev Biol State Key Lab Plant Genom Beijing 100101 Peoples R China Univ Chinese Acad Sci Coll Life Sci Beijing 100049 Peoples R China Shanxi Agr Univ Coll Agron Taiyuan 030801 Shanxi Peoples R China Chinese Acad Sci Inst Microbiol State Key Lab Microbial Resources Beijing Peoples R China South China Agr Univ Coll Marine Sci Guangzhou 510642 Guangdong Peoples R China

Tartary buckwheat （Fagopyrum tataricum） is an important pseudocereal crop that is strongly adapted to growth in adverse environments. Its gluten-free grain contains complete proteins with a well-balanced composition of essential amino acids and is a rich source of beneficial phytochemicals that provide significant health benefits. Here, we report a high-quality, chromosome-scale Tartary buckwheat genome sequence of- 489.3 Mb that is assembled by combining whole-genome shotgun sequencing of both Illumina short reads and single-molecule real-time long reads, sequence tags of a large DNA insert fosmid library, Hi-C sequencing data, and BioNano genome maps. We annotated 33 366 high-confidence protein-coding genes based on expression evidence. Comparisons of the intra-genome with the sugar beet genome revealed an independent whole-genome duplication that occurred in the buckwheat lineage after they diverged from the common ancestor, which was not shared with rosids or asterids. The reference genome facilitated the identification of many new genes predicted to be involved in rutin biosynthesis and regulation, aluminum stress resistance, and in drought and cold stress responses. Our data suggest that Tartary buckwheat＇s ability to tolerate high levels of abiotic stress is attributed to the expansion of several gene families involved in signal transduction, gene regulation, and membrane transport. The availability of these genomic resources will facilitate the discovery of agronomically and nutritionally important genes and genetic improvement of Tartary buckwheat.

关键词： tartary buckwheat de novo genome assembly rutin biosynthesis aluminum resistance abiotic stress,whole genome duplication

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

枸杞不育系与可育系花药发育的细胞学研究

引用

宁夏大学学报（自然科学版） 2009年第3期30卷 263-267页

作者：徐青秦垦冯爱玲祁建钊韩会龙黄昊宁夏大学生命科学学院宁夏银川750021 宁夏农林科学院枸杞工程技术研究中心宁夏银川750002

采用半薄和超薄切片技术,对枸杞不育系与可育系花药发育特征进行了系统的比较和观察.结果表明,不育系枸杞小孢子和药壁组织在四分体刚形成及之前的各个时期发育正常;四分体形成之后,四分孢子的胞质首先变稀薄,出现液泡化,随后液泡化加剧... 详细信息

采用半薄和超薄切片技术,对枸杞不育系与可育系花药发育特征进行了系统的比较和观察.结果表明,不育系枸杞小孢子和药壁组织在四分体刚形成及之前的各个时期发育正常;四分体形成之后,四分孢子的胞质首先变稀薄,出现液泡化,随后液泡化加剧,四分孢子的细胞质、细胞核、细胞壁和残余的胼胝质壁依次先后收缩、解体,四分体严重变形,最后完全消失;在四分体败育过程中,绒毡层细胞也剧烈液泡化,并且细胞质、细胞核和细胞壁先后于原位解体;四分体败育及解体过程均发生在胼胝质壁中.据此推断,不育系绒毡层细胞的提前解体是导致其四分体解体的原因.

关键词：枸杞雄性不育系可育系花药细胞学

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

票价优惠政策下的BRT系统绩效评价

引用

交通信息与安全 2014年第2期32卷 82-85,94页

作者：王小红翁小雄韩慧龙谢凯华南理工大学土木与交通学院广州510641

出于对我国政府在城市公共交通财政投入项目绩效评价工作的需要,利用网络分析原理,提出票价优惠政策下的BRT系统绩效评价指标体系。对政府公共交通票价优惠政策和快速公交绩效影响因素进行分析;结合公共交通政策和绩效影响因素分析结果... 详细信息

出于对我国政府在城市公共交通财政投入项目绩效评价工作的需要,利用网络分析原理,提出票价优惠政策下的BRT系统绩效评价指标体系。对政府公共交通票价优惠政策和快速公交绩效影响因素进行分析;结合公共交通政策和绩效影响因素分析结果构建基于网络分析的综合评价模型;采用超级决策软件对评价模型进行计算;结合广州市2011年度公交票价优惠政策绩效评价实例结果表明:计算结论与市民满意度调查的分析结果一致,从而验证了网络分析方法的可行性。

关键词：城市交通绩效评价网络分析法快速公交票价优惠综合评价体系

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

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：