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 ...

University campuses usually have more trees and can provide various ecosystem services. However, there are few reports on tree ecosystem services of Chinese university campuses, especially in northern China. This study investigated the trees in the campus of Shenyang Institute of Technology and analyzed its ecological benefits and monetary value through i-Tree Streets. The campus ...

Currently, there is no index for evaluating the commercialization of innovations. Within the framework of this study, the author has built an Index for assessing the level of commercialization of innovations (IACI). The proposed index allows one to assess the level of commercialization of innovations in countries in four main areas, which include both the potential and the ...

This work is devoted to identifying the problems of students that they face during work and which they cannot solve on their own. The research carried out in the course of the work indicates the need to introduce certain express trainings for medical students in order to successfully adapt them to work in health care institutions.