In this paper, a novel dynamic de-oiling oil-water separator was proposed, and through Computational Fluid Dynamics (CFD) simulation, the effects of the pressure drop ratio on the separation efficiency and the split ratio were analyzed. The results shows that the separation efficiency initially increased and then held steady as the pressure drop ratio increased, while the split ratio exhibited an approximately continuous linear decrease. Moreover, an optimal combination of properties could be obtained when the pressure drop ratio was set at a specific value, wherein both the separation efficiency and the split ratio worked advantageously.

In this paper, on the basis of static stress analysis of the Glider wings, we compare different factors influencing the drag force converted by the glider wings and optimize them by comparing the simulation results with the calculation results. The results shows that the horizontal component force is reach maximum value when attack angle reaches 45°. After that the horizontal component force decreases as attack angle increases. The horizontal component force is gradually increased as the flow rate increases under same attack angle.

Deep ocean water (DOW) is cold, nutrient-rich and pathogen-free water, which can be transported to the surface by upwelling. Upwelling can change the temperature and nutrient distribution of the surrounding water, hence improves the marine ecological environment and the marine primary productivity. Two lake experiments were accomplished in Qiandao Lake .The first experiment was done with hard PVC upwelling tube, while in the second experiment , the upwelling tubes with different diameters (0.5 m, 1 m, 1.5 m and 2 m) were made of nylon ,which are supported by rings. It can be concluded that upwelling ratio (the ratio of water volume flow rate and air volume flow rate) of the hard PVC upwelling tube was higher than that of soft nylon upwelling tube, and in condition of soft nylon upwelling tube, upwelling ratio of 1 m diameter tube was higher than that of others, providing important guidance for the next sea trial.

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Exploration of the optoelectronic memristor is required to investigate the photoelectric properties of materials. The traditional memristor material GeAs2Te4 is hopeful to be developed into a new type of optoelectronic memristor. However, acquiring high-quality single crystals remains challenging, and the electrical properties of single crystals of GeAs2Te4 need to be explored. Herein, a controlled method is introduced to grow reliable quality GeAs2Te4 single crystals, and the electrical and optoelectronic properties are studied. The photodetector based on GeAs2Te4 exhibits acceptable optoelectronic performance at designed low temperatures. The responsivity and detectivity of the GeAs2Te4-based photodetector reached the value of about 0.137 A W-1 and 6.9×107 Jones, respectively. It is promising to introduce this family of materials into the field of photodetector and also maybe further in the area of optoelectronic memristors.