• 期刊

Design of Indoor Light Retrofit Device based on PLC

In view of environmental pollution, make full use of solar energy to improve the lighting problem of indoor vegetation planting, designed a PLC-based indoor light transformation device, the use of four photosensitive sensors, the optical signal into electrical signal, better data analysis, so as to control the stepper motor to adjust the angle of the light receiving board, so as to automatically track the sunlight source, and finally through the optical fiber transport to the designated location, to achieve the improvement of indoor vegetation light.

• 期刊

Optimization Design and Research of Furnace Temperature Curve based on Thermal Conductivity Differential Equation Model

This paper mainly discusses the furnace temperature curve and conveyor belt speed in circuit board welding production of back welding furnace and how to adjust under different constraints. According to the mathematical physics method, the thermal conductivity differential equation model is established, and the energy conservation law, Fourier law theory and dynamic programming algorithm are mainly used. Using the method of micro-element and the method of successive approximation, the furnace temperature curve satisfying the process limit is found in the range value of the conveyor belt velocity over the furnace, and the dynamic programming model is established. The maximum conveyor belt velocity over the furnace is solved by the objective function using MATLAB software.

• 期刊

Research on Synthetic Design Method of Mechanical Product Shape

Objective, in order to better design the mechanical product shape, improve the satisfaction of users, and improve the efficiency of scheme design. Methods, this paper presents a comprehensive design method based on genetic algorithm to design the modeling of mechanical products. First complete the product positioning; The mapping relationship between user requirements and actual parameters is established based on aesthetic principles, and the evaluation model is established. Using genetic algorithm to seek the optimal solution of evaluation model, based on Visual Basic language to optimize the data in SOLIDWORKS quickly generate 3D model. In conclusion, this paper quantifies user requirements through aesthetic principles, and quickly completes the modeling process based on secondary development, which provides a new comprehensive design method for modeling design.

• 期刊

Overview of the Development of China's New Energy Vehicle Power Battery Gradient Utilization

In recent years, the development of new energy vehicles in China has been rapid, and the production volume of new energy vehicles accounts for about half of the global production volume. At the same time, the power battery, which is the core component of new energy vehicles, is about to reach the climax of retirement. Therefore, promoting the secondary utilization of retired power batteries is of positive significance to the sustainable development of the economy and resources, environmental protection, and energy-saving. This paper mainly summarizes the latest status of power battery recycling in China and related policy documents, discusses and analyzes the main application scenarios of power batteries, the main processes of recycling, and the main technical bottlenecks faced at the current stage, and finally summarizes and outlooks the situation of power battery recycling.

• 期刊

A Review of the Research Status and Remediation Technology of Heavy Metal Pollution in Soil in China

Soil is an essential geological resource on which human beings depend for their survival. However, with the development of industry, soil pollution has become one of the most significant environmental pollution problems in China. Heavy metals are pollutants that can cause serious damage to soil, have the potential to be easily degraded by microorganisms. With the increasingly serious problem of heavy metal pollution in farmland soil pollution, the yield and quality of crop products are also declining, which has caused great harm to human health. In order to effectively solve the above problems, this article starts from the analysis of the current situation of heavy metal pollution in China and expounds on the biochemical remediation technology and physical remediation technology possessed by China, and then serves as a reference for the research work of heavy metal pollution in China.

• 期刊

Lightweight Design for Caravan Frame Traction Racks

In this paper, HyperWorks is used to statically analyse the traction frame of a caravan under four typical operating conditions to obtain the stress and strain distribution of the traction frame under different operating conditions, laying the foundation for the optimisation of the traction frame. Based on the analysis results, the dimensions were optimised using variable section techniques to achieve a lightweight component with the required strength and deformation.

• 期刊

Improving the Performance of Wireless Sensor Networks by Various Energy Efficient Schemes

Thanks to the rapid development of wireless communication and microelectronics, wireless sensor networks emerged and have been used in various fields to sense the characteristics of objects. Considering that the power of each node in a wireless sensor network is provided by a battery, and in most cases the battery is difficult or impossible to be replaced, how to effectively save the energy of the node is very important during the network runtime. To resolve the above issues, various energy-saving schemes have been proposed. In this paper, the classification of energy-saving techniques is illustrated firstly. Then, we present the typical protocols to prolong the lifetime of network in each category.

• 期刊

Analysis on the Influencing Factors of People'S Bicycle Purchase based on Logistic Regression

With the aggravation of environmental pollution and urban traffic congestion, building a ＂green, livable, low-carbon, people-oriented＂ traffic environment has become a new task of urban traffic development, and ＂slow traffic＂ has become a research hotspot. Based on binary logistic regression, this paper analyzes the influencing factors of people's bicycle purchase in slow traffic, and finds out what has a significant impact on people's bicycle purchase from eight factors: gender, income, number of family children, education level, whether there is a room, number of cars, commuting distance and living area. According to the experimental results, the corresponding countermeasures and suggestions are put forward, in order to better promote the slow traffic-- bicycle travel, and establish a more low-carbon and environmental protection travel system.

• 期刊

Research on the Business Path of Rural financial Development in Commercial Banks--Takes the Agricultural Bank as an Example

In recent years, our country put forward to rural financial services development to promote rural financial revitalization of guidance, national commercial Banks and other rural financial institutions, especially the four major state-owned Banks began to develop rural pratt & whitney financial services, in this process, the major institutions by means of financial technology, to realize the promotion and development of rural finance, at the same time, with financial development to boost the development of the local economy. As one of the four major state-owned banks, Agricultural Bank of China has launched a series of innovative financial businesses such as ＂ABC e manager＂ and ＂e agricultural loan＂ according to its own conditions and the actual situation of the existing rural market, which provides a reference precedent for the development of rural financial services of commercial banks in China.

• 期刊

Design and Application of a New Type of Reversible Bulwark System

For ships sailing internationally, there are opportunities to pass through canals all over the world, and each canal has corresponding rules and regulations. For ships that need to pass through the Panama Canal and the St. Lawrence Canal, the width of the bridge deck needs to be taken into account. Therefore it is necessary to design a reversible bulwark. In view of the unsafety of the simple reversible bulwark at present, a new type of reversible bulwark system is proposed and applied in real ships.