Aiming at the fault phenomenon of “the temperature of food cold storage does not meet the standard” in the fault of ship refrigeration system, based on the analysis of its possible fault factors, a fault tree model is established, which can improve the speed of finding and troubleshooting; At the same...

The National Institutes of Health (NH) is one of the most important medical research centers in the world. It is an executive agency of the U.S. Department of health and public health. The focus of health actions and measures in the United States and even the world are gathered here. N1h includes 27...

Cellular damage induced by free-radicals like reactive oxygen species(ROS) has been implicated in several diseases. The ROS radicals like alkoxy radical(RO-) and peroxy radical (ROO-) are similar to those that are physiologically active and thus might initiate a cascade of intracellular toxic events...

The stable isotopic labeling reference materials play an indispensable role in the verification and calibration measuring instruments, evaluation analysis methods, determining the material characteristic and the quality control in the process of production. Therefore, it has great economic and social...

Traditional Chinese medicine (TCM) is an important part of traditional medicine in China. Ecological utilization of TCM residue is a hot research topic at present. The application of antibiotic residue is a difficult point in the study of resource utilization of drug residue in China. In this paper,...

In order to facilitate the ship managers to manage and maintain the ship electric motor, this paper analyses the relevant factors of the ship electric motor failure, makes a quantitative analysis of the ship electric motor failure factors by using the analytic hierarchy process (AHP), obtains the proportion...

DL-Tetrahydropalmatine is a Chinese herbal medicine used for analgesic purposes, whose main active compounds isolated from Corydalis. We investigate the effects of male Sprague-Dawley rats on heroin self-administration(SA) to examine the role for DL-THP. Rats were trained to intravenous injection heroin...

With the vigorous development of China’s auto industry in recent years, car washing has become more and more important. In view of the high cost, low efficiency, low cleanliness, low automation and low water utilization rate of the current car wash industry, this paper designs a fully automatic car washing...

Methamphetamine (METH) is a powerful psycho stimulant. Chronic obsessive and compulsive usage of METH caused great harm to human health (physical and psychological) and social stability issues all over the world. Currently, no drugs have been used to treat and prevent METH addiction. L-Stepholidine (L-SPD)...

It is introduced that the operator uses radio frequency technology to communicate with gantry cranes gather relevant data and control their work. Frequency communication system consists of two parts: one part is mounted on the crane to collect working and the environmental data of crane; another part...

The paper sorts out the evolution of education in China under the influence of the epidemic in 2020, analyzes the advantages and disadvantages of pure online education and offline education, and draws follow conclusions: With current technology, the pure online education model cannot meet the educational...

Manufacturing level and resource scheduling optimization ability are the core operation problems of manufacturing enterprises. Integrating the Internet of things and other advanced information technologies with traditional manufacturing industry, and establishing an intelligent manufacturing system platform...

The concept, origin, development and application of supramolecular chemistry are briefly introduced. This paper introduces in detail: the preparation and application of rare ginsenoside, a biological supramolecular ligand.Synthesis, properties and applications of supramolecular complexes of macrotricyclic...

A practical soft switch bidirectional converter for EV is presented, which can realize the bidirectional flow of energy between the energy storage battery and the motor of the EV. By choosing an appropriate resonant circuit, the soft switch characteristics of the converter in Buck mode and boost mode...

This article introduced one kind of brand-new control system about food processing, which uses on the lower and upper position machine structure pattern, by the plate computer machine took on the upper position machine, and SCM takes on the lower position machine. Paper main content covers system design,...

The intelligent water and fertilizer integration device integrates the environmental monitoring system and the intelligent water and fertilizer integration system, which is composed of three parts. Wireless sensor network is composed of multiple sensor nodes of wireless network, wireless sensor network...

Aiming at the problems such as inaccurate positioning caused by indoor blocking of satellite positioning signals and the demand of personnel attitude detection, this paper designs a seamless positioning and attitude detection system based on GPS and inertial navigation, the system uses STM32 as the main...

CAN (Controller Area Network) is a kind of international standard, and the relatively high price-performance field bus, which in today’s developments in the field of automatic control can play an important role. In the full understanding of field bus based on the theory, this paper presents a CAN-bus...

With the continuous development of the world’s facilities, the level of control of the environment is increasing. China is the largest vegetable cultivation area, the traditional facilities of vegetable cultivation mainly use the soil within the facility, and in this cultivation mode, inevitably lead...

The generation, development, and applications of modern organic analysis was introduced. Emphases are put on two parts: applications of modern organic and biological analysis to life science and pharmaceutical analysis; applications of modern organic and biological analysis to organic analytical sepa-...

the current situation of soil resources urgently needs to supplement soil organic matter through human measures to ensure the level of agricultural cultivation and the quality of crop products. However, many reasons, such as the lack of advanced production technology and cheap fermentation bacteria,...

Physiology is an experimental science, all of its knowledge comes from clinical practice and experimental research. In the teaching of physiology, in addition to theoretical teaching, the key chapters and key contents will be set with corresponding experimental contents to deepen students’ understanding...

Main research contents and technical and economic indicators: The plan, organization, implementation and control of agricultural production and service creation in the process of digitizing agricultural elements and processes and analyzing the digital resources generated by the new Internet of Things...

The progress of modern medical science and technology has put forward higher requirements for the cultivation of medical talents. Under the background of the new era, the ability of scientific research and innovation is a kind of ability that medical students should have. Cultivating the ability of scientific...

Biochemistry theory and technology is an important tool to analyze the etiology, development mechanism, diagnosis and treatment of clinical related diseases. It is an important subject in the training and education of clinicians. Based on the related problems in biochemistry teaching practice, such as...

CT technology can make use of the penetrability of X-ray to obtain the internal information of the object without damaging the shape and structure of the sample. Therefore, it has a wide range of applications in the fields of industry, non-destructive testing and medical imaging. However, in the installation...

The policy of 1+X certificate system has pointed out the way for the development of vocational education from the perspective of top-level design.Nowadays, the 1+X certificate system construction still exists the main organization construction and the communication mechanism is not perfect, which leads...

Under the goal-oriented environment, the mental health education in middle school is not enough, and the goal of psychological education is deviated. The teaching method of negative psychology is often adopted, and the psychological work is carried out from the students’ psychology, life and study. For...

This paper studies the present situation of students’ textual research in higher vocational education, and uses big data to analyze the data through questionnaire, class actual interview, data collection and so on. According to the results, the proportion of academic certificate and professional skill...