Articles techniques et présentations

本研究成功开发出一种多级梯度结构的OMI纤维膜，其特点包括由外至内纤维直径逐层递减、每层具有双峰纤维直径分布、以及有机-无机复合功能化策略。这种独特结构实现了低压阻下的高效空气过滤，并确保了长期热稳定性。该OMI纤维膜对PM0.3、PM1.0和PM2.5的过滤效率分别达到99.98%、99.99%和100%，且压阻仅为65 Pa。此外，针对压力场和颗粒过滤行为的CFD模拟结果与实验趋势一致。在250 °C热处理12小时后，该OMI纤维膜仍保持94.68%的PM0.3过滤效率和62 Pa的压阻。本研究证明了OMI纳米纤维膜在250 °C下的基础热稳定性与过滤潜力 ... En savoir plus

Acoustophoresis is a promising technology for the downstream processing of microalgae biorefineries(Zhang et al., 2025). By generating acoustic radiation forces and acoustic streaming, it enables precise manipulation of particles within an acoustic standing field of a microfluidic chip ... En savoir plus

The efficiency and environmental impact of oil production become a principal challenge of energy producing companies. The improvement of existing and development of novel methods are often feasible within either a “new” physical framework (from the viewpoint of oil reservoir ... En savoir plus

Pre-existing oil and gas wells and well bores represent highly permeable pathways for leakage of greenhouse gases; in Alberta alone leaks have been estimated to provide the equivalent of 3.5 million tonnes of CO2 per annum. In addition to abandoned wells without plugs, gas leakage may ... En savoir plus

The maintenance plan or rush-to-repair of a subsea pipeline for oil transport may result in the shutdown of the line, in other words, may stop the flow of fluid. During the shutdown, the temperature of the oil tends to decrease continuously, and the heavy molecules tend to crystallize ... En savoir plus

Surface discharge at the oil-pressboard interface has been classified as the most dangerous fault condition in power transformer because it results in catastrophic failure under normal operating conditions and difficult to be detected. In order to understand the physical features of ... En savoir plus

Thermal flow meters represent a vast range of sensors for applications in oil and gas, sustainable energy, food and medical care markets, where precise control of the mass flow is required. As a part of the MEMS production process, testing is performed after product assembly. Due to high ... En savoir plus

In this work, a bimetallic strip based thermal sensor was designed using MEMS module of COMSOL Multiphysics® software to monitor the temperature rise in insulating oil which was used as coolant in transformers. The bimetallic strip was designed with different shapes such as cylindrical, ... En savoir plus

Voltage sensors are increasingly used for monitoring and load flow distribution. These sensors are safer, lighter in weight and lower in cost as compared to the conventional voltage transformers. The principal component of these sensors is high voltage resistors. The resistors have a ... En savoir plus

Abstract In this work, the positive enhancing effect of conductive polyaniline (PANI) as an interfacial core-shell layer coated over a piezoelectrically active barium titanate (BTO) nanoparticles on the output electro-elastic properties (relative dielectric constant, piezoelectric co ... En savoir plus