Oil repellent surface have lots of practical applications in many fields. Current oil repellent coating may suffer from limited liquid repellency to oils or environmental risks. In this work, we report an eco-friendly 'green' processes for preparing oil-repellent surface using a renewable and environmentally benign bioresource alginate. The oil-repellent coating was prepared by a two-step surfa...

Efficient liquid-liquid separations are an integral part of many industrial processes. Water entrained in oil and other hydrocarbon products can impede quality specifications. Entrained oil in process water streams puts additional demands on effluent treatment systems. Under the present economic environment, processing production demands push plants and existing equipment beyond the original de...

Nuclear magnetic resonance, or NMR, is the energy exchange between an RF magnetic field and an atomic nucleus such as a hydrogen proton, which is a tiny bar magnet due to its spin. NMR has a broad array of powerful applications, including: biomolecule sensing (e.g., cancer marker detection), medical imaging, and oil detection. NMR instruments, however, are bulky, heavy, and expensive, and remai...

Power transformers are one of the most critical devices in power systems. It is responsible for voltage conversion, power distribution and transmission, and provides power services. Therefore, the normal operation of the transformer is an important guarantee for the safe, reliable, high quality and economical operation of the power system. It is necessary to minimize and reduce the occurrence o...

Nuclear magnetic resonance, or NMR, is the energy exchange between an RF magnetic field and an atomic nucleus such as a hydrogen proton, which is a tiny bar magnet due to its spin. NMR has a broad array of powerful applications, including: biomolecule sensing (e.g., cancer marker detection), medical imaging, and oil detection. NMR instruments, however, are bulky, heavy, and expensive, and remai...

The article describes curative features of naphthalan, the unique oil obtained in Azerbaijan. Naphthalan was obtained manually till late 19th century. In 1890 Eger, the German engineer prepared the equipment for industrial obtainment of this oil. This way naphthalan become known in Europe where it had been used in pharmacy and medicine. “Naphthalan” resource was founded here in1926 and over 200...

An oil droplet wrapped with poly(N-isopropylacrylamide) grafted nanoparticles can ascend or descend in water repeatedly by simply tuning the temperature of water above or below 33 °C, while avoiding the use of sophisticated equipment and complex nanostructures.

The reason for the abnormal wear between the vane-slot and the vane in the rotary compressor is analyzed in this paper. Firstly, the influence of lubrication at the clearance, the machining equipment accuracy and oil circulation (oil flow rate) is analyzed. Then the material characteristics including the hardness of the vane and vane-slot, the surface treatment of the vane and the deformation o...