Search | Engineering

订阅投稿

首页工程期刊工程焦点工程成就工程前沿关于我们 English

资源类型

期刊论文 1102

会议视频 27

会议信息 4

年份

2024 2

2023 169

2022 175

2021 192

2020 98

2019 41

2018 28

2017 49

2016 31

2015 36

2014 45

2013 42

2012 21

2011 23

2010 43

2009 29

2008 19

2007 33

2006 4

2005 3

展开︾

关键词

SARS-CoV-2 7

微波散射计 5

碳中和 5

COVID-19 4

Cu(In 4

HY-2 4

薄膜润滑 4

2019 3

2型糖尿病 3

GPS 3

Ga)Se₂ 3

HY-2 卫星 3

HY-2A卫星 3

代谢与免疫 3

光催化 3

工程管理 3

微波辐射计 3

绿色化工 3

营养健康 3

展开︾

检索范围：

排序：展示方式：

基于图案化 VO₂薄膜的透明热可调微波吸收器 Article

陆振刚, 张怡蕾, 王赫岩, 夏超, 刘云菲, 豆书亮, 李垚, 谭久彬

《工程（英文）》 2023年第29卷第10期页码 198-206 doi: 10.1016/j.eng.2022.10.005

摘要：本文提出了一种基于二氧化钒(VO₂)薄膜的透明热可调微波吸收器。同时，仅通过调控图案化VO₂薄膜的占空比即可改变实现近1吸收时的温度。所提出的基于VO₂薄膜的吸波器具有组成简单，光学透过率高，微波吸收性能热可调，调制深度大，温度调节范围可控等优点，因此有望应用于可调传感器、热发射器、调制器、热成像仪、辐射热测定器和光电器件中

关键词：可调微波吸收器 VO₂薄膜光学透明仅1吸收大调制深度

HTML PDF 收藏

Simultaneous removal of NO and chlorobenzene on VO/TiO granular catalyst: Kinetic study and performance

《环境科学与工程前沿（英文）》 2021年第15卷第4期 doi: 10.1007/s11783-020-1363-5

摘要：

• A V₂O₅/TiO₂ granular catalyst for simultaneous removal of NO and chlorobenzene.

关键词： NO_x Chlorobenzene Simultaneous removal Kinetic study Performance prediction V₂O₅/TiO₂ Graphical abstract

HTML PDF 收藏

超疏水SiO2/PS 薄膜于木材表面的构建

张明,王成毓

《中国工程科学》 2014年第16卷第4期页码 83-86

摘要：

通过溶胶-凝胶法一步合成疏水性且具备独特形貌的二氧化硅粒子，联合聚苯乙烯以滴涂的方式于木材表面仿生合成了稳定性超疏水薄膜。

关键词：超疏水木材表面滴涂法复合薄膜

HTML PDF 收藏

基于Cu(In,Ga)Se₂ 低成本薄膜的光伏技术的进展

Powalla Michael,Paetel Stefan,Hariskos Dimitrios,Wuerz Roland,Kessler Friedrich,Lechner Peter,Wischmann Wiltraud,Magorian Friedlmeier Theresa

《工程（英文）》 2017年第3卷第4期页码 445-451 doi: 10.1016/J.ENG.2017.04.015

摘要：

本文讨论了基于Cu(In,Ga)Se ₂ (CIGS) 复合薄膜半导体材料的光伏（PV）技术。

关键词：薄膜光伏太阳能柔性 Cu(In Ga)Se₂

HTML PDF 收藏

Engineering the electronic and geometric structure of VO/BN@TiO heterostructure for efficient aerobic

《化学科学与工程前沿（英文）》 2023年第17卷第3期页码 276-287 doi: 10.1007/s11705-022-2242-3

摘要： Particle size governs the electronic and geometric structure of metal nanoparticles (NPs), shaping their catalytic performances in heterogeneous catalysis. However, precisely controlling the size of active metal NPs and thereafter their catalytic activities remain an affordable challenge in ultra-deep oxidative desulfurization (ODS) field. Herein, a series of highly-efficient VO_x/boron nitride nanosheets (BNNS)@TiO₂ heterostructures, therein, cetyltrimethylammonium bromide cationic surfactants serving as intercalation agent, BNNS and MXene as precursors, with various VO_x NP sizes were designed and controllably constructed by a facile intercalation confinement strategy. The properties and structures of the prepared catalysts were systematically characterized by different technical methods, and their catalytic activities were investigated for aerobic ODS of dibenzothiophene (DBT). The results show that the size of VO_x NPs and V⁵⁺/V⁴⁺ play decisive roles in the catalytic aerobic ODS of VO_x/BNNS@TiO₂ catalysts and that VO_x/BNNS@TiO₂-2 exhibits the highest ODS activity with 93.7% DBT conversion within 60 min under the reaction temperature of 130 °C and oxygen flow rate of 200 mL·min^–1, which is due to its optimal VO_x dispersion, excellent reducibility and abundant active species. Therefore, the finding here may contribute to the fundamental understanding of structure-activity in ultra-deep ODS and inspire the advancement of highly-efficient catalyst.

关键词： oxidative desulfurization boron nitride vanadium MXene intercalation confinement

HTML PDF 收藏

碱金属掺杂对CIGS 薄膜及电池器件的影响

孙云,林舒平,李伟,程世清,张运祥,刘一鸣,刘玮

《工程（英文）》 2017年第3卷第4期页码 452-459 doi: 10.1016/J.ENG.2017.04.020

摘要：

本文总结了Cu(In, Ga)Se₂ (CIGS) 电池中掺杂碱金属的发展历史和一些重要成果，综述了碱金属掺杂方式对CIGS 吸收层及器件性能的影响。通过分析由(NaF+KF)-PDT 导致的CIGS 表面结构及电学性能的改变，我们提出并解释了如下几个问题：①在低温沉积CIGS 薄膜过程中，Na 促进了CuInSe₂的优先形成，排挤Ga 向Mo 衬底扩散，造成CIGS 薄膜的分层现象；② Na 原子钝化CIGS 晶界及表面缺陷从而提高空穴载流子浓度的相关机制；③过渡层减薄提高了短路电流（J_SC

关键词：碱金属 Cu(In Ga)Se₂ 薄膜太阳能电池 PDT

HTML PDF 收藏

A wind tunnel study on control methods for cable dry-galloping

VO,Hiroshi KATSUCHI,Hitoshi YAMADA,Mayuko NISHIO

《结构与土木工程前沿（英文）》 2016年第10卷第1期页码 72-80 doi: 10.1007/s11709-015-0309-7

摘要： The common vibration of cable caused by rain-wind combination has been known as most typical type and a lot kind of its countermeasures has been proposed for suppressing this phenomenon. Recently, stayed-cables were also proved that they could be excited in dry state (without rain), which is called dry-galloping. Recently, its mechanisms have been explained by axial flow, Reynolds number and so on. To clarify the characteristics of this galloping, wind tunnel test of a cable model with various kinds of wind angle was conducted. Then, three types of countermeasure were examined to suppress dry- galloping of bridge cable. The tests confirmed that the occurrence of dry-galloping depends on relative wind attacked angles and onset reduced wind speed. Furthermore, single spiral wire, double spiral wire and circular ring were found to have high effectiveness in mitigating this galloping when those are installed properly.

关键词： dry-galloping wind-relative angle single spiral wire double spiral wire circular rings

HTML PDF 收藏

Synthesis of cobalt vanadium nanomaterials for efficient electrocatalysis of oxygen evolution

Meifeng Hao, Mingshu Xiao, Lihong Qian, Yuqing Miao

《化学科学与工程前沿（英文）》 2018年第12卷第3期页码 409-416 doi: 10.1007/s11705-017-1689-0

摘要：

A low-cost and high-activity catalyst for oxygen evolution reaction (OER) is the key to the water splitting technology for hydrogen generation. Here we report the use of three solvents, DMF, ethanol and glycol, in the solvothermal synthesis of three nano-catalysts, Co₃(VO₄)₂-I, Co₃(VO₄)₂-II, and Co₃(VO₄)₂-III, respectively. Transmission electron microscope shows Co₃(VO₄)₂-I, II, and III exist as ultrafine nanosheets, ultrathin nanofilms, and ultrafine nanosheet-comprised microspheres, respectively. These Co₃(VO₄)₂ catalysts exhibit OER electrocatalysis, among which the Co₃(VO₄)₂-II shows the lowest onset overpotential of 310 mV and only requires a small overpotential of 330 mV to drive current density of 10 mA/cm². Due to their high surface free energy, the ultrathin nanofilms of Co₃(VO₄)₂-II exhibits a good immobilization effect with the high electrocatalytic activity for OER.

关键词： Co₃(VO₄)₂ oxygen evolution reaction electrocatalyst water splitting

HTML PDF 收藏

对二氧化碳具有选择性的聚环氧乙烷基薄膜的发展——从实验室到中试规模

Brinkmann Torsten,Lillepärg Jelena,Notzke Heiko,Pohlmann Jan,Shishatskiy Sergey,Wind Jan,Wolff Thorsten

《工程（英文）》 2017年第3卷第4期页码 485-493 doi: 10.1016/J.ENG.2017.04.004

摘要：

气体膜分离法是从气流中分离二氧化碳（CO₂）的最有前途的技术之一。例如，采用该技术对燃烧过程中的烟气进行处理，以达到CO₂ 捕集和封存的目的。本文采用PolyActive™ 作为复合薄膜的选择层。在环境温度下，当CO₂/N₂ 选择性超过55 时，这种薄膜的CO₂渗透率高达4 m³(STP)·m⁻²·h⁻¹·bar⁻¹（注：1bar=10⁵ Pa这种薄膜可以按照中试规模进行生产放大，而且可以设计成不同的平面膜组件。采用单一气体渗透数据作为唯一的实验输入而开发出的仿真工具可以准确预测这种膜组件的性能。

关键词：气体渗透薄膜复合膜 CO₂分离 CCS 沼气处理膜组件

HTML PDF 收藏

薄膜润滑径向轴承特性分析

曲庆文,柴山,姚福生

《中国工程科学》 2003年第5卷第6期页码 44-48

摘要：

薄膜润滑轴承的特性远不同于常规轴承，在考虑间隙对润滑剂产生的影响后，润滑剂的特性将发生较大的变化。由于这种变化，薄膜润滑的特性才被广泛地研究和重视。

关键词：薄膜润滑等效粘度径向轴承

HTML PDF 收藏

空间衍射望远系统发展现状 Review Article

赵维1,3,4,王新1,刘华‡2,4,陆子凤2,4,卢振武5

《信息与电子工程前沿（英文）》 2020年第21卷第6期页码 809-962 doi: 10.1631/FITEE.1900529

摘要：基底微结构制作的薄膜衍射光学元件具备超轻质量（面密度小于0.1 kg/m2）和宽松表面形状公差（厘米级表面精度需求）两个重要特性，将其作为大口径望远镜的主镜可实现超大口径，超轻量化，同时降低发射成本。

关键词：薄膜衍射光学元件；衍射望远系统；超大口径

HTML PDF 收藏

Free vibration analysis of laminated FG-CNT reinforced composite beams using finite element method

VO-DUY, V. HO-HUU, T. NGUYEN-THOI

《结构与土木工程前沿（英文）》 2019年第13卷第2期页码 324-336 doi: 10.1007/s11709-018-0466-6

摘要： In the present study, the free vibration of laminated functionally graded carbon nanotube reinforced composite beams is analyzed. The laminated beam is made of perfectly bonded carbon nanotubes reinforced composite (CNTRC) layers. In each layer, single-walled carbon nanotubes are assumed to be uniformly distributed (UD) or functionally graded (FG) distributed along the thickness direction. Effective material properties of the two-phase composites, a mixture of carbon nanotubes (CNTs) and an isotropic polymer, are calculated using the extended rule of mixture. The first-order shear deformation theory is used to formulate a governing equation for predicting free vibration of laminated functionally graded carbon nanotubes reinforced composite (FG-CNTRC) beams. The governing equation is solved by the finite element method with various boundary conditions. Several numerical tests are performed to investigate the influence of the CNTs volume fractions, CNTs distributions, CNTs orientation angles, boundary conditions, length-to-thickness ratios and the numbers of layers on the frequencies of the laminated FG-CNTRC beams. Moreover, a laminated composite beam combined by various distribution types of CNTs is also studied.

关键词： free vibration analysis laminated FG-CNTRC beam finite element method first-order shear deformation theory composite material

HTML PDF 收藏

非线性弹性薄膜表面效应的尺寸相关性研究

黄殿武,连媛,李凯

《中国工程科学》 2006年第8卷第4期页码 54-59

摘要：

在Mindlin假设的前提下，考虑了几何非线性条件及表面效应的影响，建立了纳米尺度下尺寸相关的板状各向同性弹性薄膜模型；从哈密尔顿变分原理出发，导出了薄膜的控制方程，用公式明确阐述了由表面张力引起的符合经典板理论且与薄膜变形相关的残余膜力和弯矩；通过微小尺寸薄膜弯曲的算例，说明了表面效应与薄膜厚度的相关性，当薄膜厚度等于或者小于其内禀尺度时，表面效应对薄膜厚度表现出很强的敏感性。

关键词：弹性薄膜几何非线性表面效应内禀尺度尺度相关

HTML PDF 收藏

薄膜润滑研究的回顾与展望

雒建斌,张朝辉,温诗铸

《中国工程科学》 2003年第5卷第7期页码 84-89

摘要：

薄膜润滑是20世纪90年代以来广泛研究的新型润滑状态。它是界于弹流润滑和边界润滑之间的一种过渡润滑状态，有着自己独特的润滑规律。文章回顾了薄膜润滑的研究历史，包括薄膜润滑概念的提出、测试技术的发展、薄膜润滑的膜厚特性、润滑机理探索以及计算理论等方面的研究成果与主要进展。

关键词：薄膜润滑有序膜膜厚测量微结构

HTML PDF 收藏

影响微电子机械系统成品率和可靠性和粘合力和磨擦力

王渭源

《中国工程科学》 2000年第2卷第3期页码 36-41

摘要：解决粘合的最好办法是：在MEMS微结构的表面涂以抗粘合薄膜，将成品器件在干燥气氛下封装。介绍了抗粘合薄膜的制备工艺和目前存在的问题。相比之下，具有高速运动的MEMS,其摩擦力问题更为复杂。应用抗粘合薄膜，解决了粘合，也降低了摩擦力，但摩擦依然存在。摩擦带来磨损，降低器件可靠性和寿命。寻找既抗粘合、又耐磨的薄膜，是解决高速运动MEMS可靠性和寿命的一个关键。

关键词：微电子机械系统粘合力摩擦力抗粘合薄膜耐磨损薄膜