At present, the problem of water and metal pollution in China is becoming more and more prominent. Among them, the problem of lead pollution cannot be neglected, and it is particularly important to select an appropriate method to detect the content of heavy metal lead ions. In this paper, Graphene was used as solid-state transfer layer to prepare all-solid ion-selective electrode ...

In order to solve the problem that the heat supply and demand do not match the time and place in the waste heat recovery of continuous casting slabs in the existing iron and steel enterprises. This work aims to use the principle of phase change energy storage for multi-stage recovery and storage of high-temperature waste heat from continuous casting slabs, which can not only ...

Evaluation and prediction of higher education health status based on grey relational analysis and time series / Fang Liu [и др.] // II Китайско-белорусский молодежный конкурс научно-исследовательских и инновационных проектов : сборник материалов конкурса, 20-21 мая 2021 г. / Белорусский национальный технический университет ; Научно-технологический парк БНТУ «Политехник» ; Институт ...

At low temperature, the charging and discharging performance of battery is greatly reduced, and its life is seriously affected, which directly limits the development of new energy vehicles. In this paper, based on the study of the current low-temperature heating methods, the advantages and disadvantages of each method are compared, and a battery charging preheating and discharge ...

(Objective) To investigate the effect of paeonol on oxidative damage in mice with acute pancreatitis. (Method) In this study, a mouse model of acute pancreatitis was established by injected intraperitoneally with 20% L-arginine, and the experimental animals were randomly assigned to the blank control group acute pancreatitis model group and the paeonol low-medium-high dose group ...

Today, an urgent problem is the inability to quickly and efficiently process the room. Microorganism cleaner is a multifunctional robot sanitizer for working and living spaces. The goal of the project is to increase the efficiency of processing the room. Project objectives: to study the effectiveness of the bactericidal action of UV radiation, to develop a special spray gun that ...

Thermal diffusion of heavy rare earths is an important technology for preparation of the sintering NdFeB magnets with high-performance and low-cost. However, the stability of diffusing process is lower and the mechanism of Dy diffusion is still unclear, which has become a bottleneck affecting the large-scale application of the technology. In this work, commercial 35M magnets ...

Un recent years, the relevant departments of the country have increased the relevant punishment provisions of drunk driving, and for the first time, it is stipulated that those who drive operating motor vehicles after drinking alcohol will be detained for 15 days. This paper introduces the STC89C52 MCU as the core of the intelligent drunk driving detection system, it takes advantage ...

At present, the world food system is unstable, some countries and regions still have unsolvable food problems, and the current food system has caused serious environmental problems. We will re-optimize the food system to produce more food on the premise of improving the environment. We mainly solve the following four problems

Combining the gamma transform with Sobel edge detection method, an image enhancement method is designed. The improved Mask R-CNN infrared target detection algorithm based on image enhancement network is proposed. This algorithm is introduced into the Mask R-CNN network based on the decrease of learning rate. Aiming at the limitation of image captured by single sensor, a new target ...