检索范围:
排序: 展示方式:
Modeling and simulation of droplet translocation and fission by electrowetting-on-dielectrics (EWOD)
Nathan HOWELL, Weihua LI
《机械工程前沿(英文)》 2010年 第5卷 第4期 页码 376-388 doi: 10.1007/s11465-010-0104-z
关键词: electrowetting-on-dielectrics (EWOD) electrowetting microfluidics droplet translocation droplet fission Flow3D dielectric constant
Jagdeep SINGH,Rajiv Kumar SHARMA
《机械工程前沿(英文)》 2016年 第11卷 第4期 页码 374-387 doi: 10.1007/s11465-016-0388-8
Electrical discharge machining (EDM) is a well-known nontraditional manufacturing process to machine the difficult-to-machine (DTM) materials which have unique hardness properties. Researchers have successfully performed hybridization to improve this process by incorporating powders into the EDM process known as powder-mixed EDM process. This process drastically improves process efficiency by increasing material removal rate, micro-hardness, as well as reducing the tool wear rate and surface roughness. EDM also has some input parameters, including pulse-on time, dielectric levels and its type, current setting, flushing pressure, and so on, which have a significant effect on EDM performance. However, despite their positive influence, investigating the effects of these parameters on environmental conditions is necessary. Most studies demonstrate the use of kerosene oil as dielectric fluid. Nevertheless, in this work, the authors highlight the findings with respect to three different dielectric fluids, including kerosene oil, EDM oil, and distilled water using one-variable-at-a-time approach for machining as well as environmental aspects. The hazard and operability analysis is employed to identify the inherent safety factors associated with powder-mixed EDM of WC-Co.
关键词: WC hazard and operability analysis (HAZOP) discharging aerosol concentration dielectrics powders
Wenjie Sun, Jiale Mao, Shuang Wang, Lei Zhang, Yonghong Cheng
《化学科学与工程前沿(英文)》 2021年 第15卷 第1期 页码 18-34 doi: 10.1007/s11705-020-1939-4
关键词: dielectric capacitors polymer-based dielectrics energy density dielectric loss working temperature frequency response
非平面电极双稳态电润湿显示器件研究 Regular Papers-Research Articles
Han ZHANG, Xue-lei LIANG
《信息与电子工程前沿(英文)》 2019年 第20卷 第9期 页码 1289-1295 doi: 10.1631/FITEE.1800167
Surface tension of liquid metal: role, mechanism and application
Xi ZHAO, Shuo XU, Jing LIU
《能源前沿(英文)》 2017年 第11卷 第4期 页码 535-567 doi: 10.1007/s11708-017-0463-9
关键词: surface tension liquid metal soft machine printed electronics electrowetting self-actuation
Digital microfluidics: A promising technique for biochemical applications
He WANG, Liguo CHEN, Lining SUN
《机械工程前沿(英文)》 2017年 第12卷 第4期 页码 510-525 doi: 10.1007/s11465-017-0460-z
Digital microfluidics (DMF) is a versatile microfluidics technology that has significant application potential in the areas of automation and miniaturization. In DMF, discrete droplets containing samples and reagents are controlled to implement a series of operations via electrowetting-on-dielectric. This process works by applying electrical potentials to an array of electrodes coated with a hydrophobic dielectric layer. Unlike microchannels, DMF facilitates precise control over multiple reaction processes without using complex pump, microvalve, and tubing networks. DMF also presents other distinct features, such as portability, less sample consumption, shorter chemical reaction time, flexibility, and easier combination with other technology types. Due to its unique advantages, DMF has been applied to a broad range of fields (e.g., chemistry, biology, medicine, and environment). This study reviews the basic principles of droplet actuation, configuration design, and fabrication of the DMF device, as well as discusses the latest progress in DMF from the biochemistry perspective.
关键词: digital microfluidics electrowetting on dielectric discrete droplet biochemistry
标题 作者 时间 类型 操作
Modeling and simulation of droplet translocation and fission by electrowetting-on-dielectrics (EWOD)
Nathan HOWELL, Weihua LI
期刊论文
Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine
Jagdeep SINGH,Rajiv Kumar SHARMA
期刊论文
Review of recent advances of polymer based dielectrics for high-energy storage in electronic power devices
Wenjie Sun, Jiale Mao, Shuang Wang, Lei Zhang, Yonghong Cheng
期刊论文