Results 11 to 20 of about 1,805 (143)

Stability Study of Multi-Level Grayscales Based on Driving Waveforms for Electrowetting Displays

Micromachines, 2023
Electrowetting Display (EWD) is a new reflective display with an outstanding performance of color video playback. However, some problems still exist and affect its performance.
Wanzhen Xu, Zichuan Yi, Zhengxing Long, Hu Zhang, Jiaquan Jiang, Liming Liu, Feng Chi, Ding Tan, Huan Wang   +8 more
doaj   +1 more source

Control and Dynamic Characteristics Analysis for the Double-Compound Axial Piston Pump Based on Working Conditions

Machines, 2022
The periodic flow and pressure pulsation of the axial piston pump can lead to periodic vibration, noise, and even damage to various components in the hydraulic system.
Zhiyuan Sun, Qingliang Zeng, Lirong Wan, Hanzheng Dai   +3 more
doaj   +1 more source

Design of an AC Driving Waveform Based on Characteristics of Electrowetting Stability for Electrowetting Displays

Frontiers in Physics, 2020
In traditional electrowetting display (EWD) drivers, direct current (DC) voltage and pulse width modulation are often used, which easily caused an electrowetting charge trapping phenomenon in a hydrophobic insulating layer. Therefore, the driving voltage
Linwei Liu, Zhuoyu Wu, Li Wang, Taiyuan Zhang, Wei Li, Shufa Lai, Pengfei Bai   +6 more
doaj   +1 more source

Impact of Blow-By Gas and Endgap Ring Position on the Variations of Particle Emissions in Gasoline Engines

Energies, 2021
Particulate emission from internal combustion engines is a complex phenomenon that needs to be understood in order to identify its main factors. To this end, it appears necessary to study the impact of unburned gases, called blow-by gases, which are ...
Vincent Berthome, David Chalet, Jean-François Hetet   +2 more
doaj   +1 more source

Oil Conductivity, Electric-Field-Induced Interfacial Charge Effects, and Their Influence on the Electro-Optical Response of Electrowetting Display Devices

Micromachines, 2020
A pixel in an electrowetting display (EWD) can be viewed as a confined water/oil two-phase microfluidic system that can be manipulated by applying an electric field.
Chengdian Jiang, Biao Tang, Bojian Xu, Jan Groenewold, Guofu Zhou   +4 more
doaj   +1 more source

Consequence of Blowby Flow and Idling Time on Oil Consumption and Particulate Emissions in Gasoline Engine

Energies, 2022
Pollutant emission standards and, in particular, those concerning particles from an internal combustion engine (ICE) are becoming increasingly restrictive.
Vincent Berthome, David Chalet, Jean-François Hetet   +2 more
doaj   +1 more source

Dynamic characteristics and influencing factors of CO2 huff and puff in tight oil reservoirs

Petroleum Exploration and Development, 2021
CO2 huff and puff experiments of different injection parameters, production parameters and soaking time were carried out on large-scale cubic and long columnar outcrop samples to analyze dynamic characteristics and influencing factors of CO2 huff and ...
Xiang TANG, Yiqiang LI, Xue HAN, Yongbing ZHOU, Jianfei ZHAN, Miaomiao XU, Rui ZHOU, Kai CUI, Xiaolong CHEN, Lei WANG   +9 more
doaj   +1 more source

Study on Wastewater Demulsification Technology of Crude Oil in Xinjiang Oilfield

Molecules, 2023
The Second Oil Production Plant of Xinjiang Oilfield produces a large amount of highly emulsified crude oil, which has a serious impact on the subsequent oil–water separation.
Jingui Ma, Liqiang Ma, Yongdi Gao, Yue Qin, Zhihao Jiao, Ruibo Guo, Junwei Hou   +6 more
doaj   +1 more source

Frictional Pressure Drop and Liquid Holdup of Churn Flow in Vertical Pipes with Different Viscosities

Geofluids, 2021
Churn flow commonly exists in the pipe of heavy oil, and the characteristics of churn flow should be widely understood. In this paper, we carried out air and viscous oil two-phase flow experiments, and the diameter of the test section is 60 mm.
Zilong Liu, Yubin Su, Ming Lu, Zilong Zheng, Ruiquan Liao   +4 more
doaj   +1 more source

Controlling the Formation of Foams in Broth to Promote the Co-Production of Microbial Oil and Exopolysaccharide in Fed-Batch Fermentation

Fermentation, 2022
A large amount of foam is generated in the production of microbial oil and exopolysaccharide (EPS) by Sporidiobolus pararoseus JD-2, which causes low efficiency in fermentation.
Yan-Feng Guo, Meng-Qi Wang, Yi-Lei Wang, Hong-Tao Wang, Jian-Zhong Xu   +4 more
doaj   +1 more source