Abstract.Under the new development pattern with domestic circulation as the main body and domestic and international dual circulation promoting each other, it has become the general trend to promote the construction of the Chengdu-Chongqing Twin Cities Economic Circle and deeply integrate into the development of the Yangtze River Economic Belt. Located in the upper reaches of the Yangtze River, the Chengdu-Chongqing Economic Circle is an important hub connecting the east and west, and its port has become an important strategic resource for the economic development of the hinterland. Although the port … Read more →

Abstract.With the continuous upgrading of wireless communication technology, the types of mobile service businesses continue to increase, and the number of communication terminal equipment has also increased sharply, greatly increasing people's demand for wireless data traffic and network coverage. As one of the research hotspots of wireless transmission, multi-antenna technology can improve system transmission rate, improve spectrum utilization and expand network coverage. According to the different implementation methods, this paper discusses the research status of three typical multi-antenna … Read more →

Abstract.While the domestic economy is developing rapidly, the impact of municipal solid waste on the ecological environment is increasing. The construction of "waste-free cities" has become an inevitable choice and an important tool to promote the sustainable development of cities and the sustainable management of solid waste. This paper evaluates the level of solid waste resource utilization in 27 central cities in the Yangtze River Delta region from four dimensions: technical level, economic benefit, social benefit and environmental protection benefit. Firstly, the gray correlation is used to … Read more →

Abstract.The regulation of urban construction land can effectively solve the problems of inefficient use of urban land, idle land, urban stock land. This paper systematically combs the practice and experience of construction land regulation in several countries at home and abroad, which provides reference for the development of construction land regulation projects in China. Under the new situation, we should adapt to the current situation that the objects, objectives and models of land reclamation are more diversified, implement the strategy of land connotation excavation and reclamation and … Read more →

Abstract.Through the Lu Zuofu Memorial Hall and architectural heritage related literature research, the background of Lu Zuofu Memorial Hall and the architectural layout of the function of a brief introduction, and then analyze the Lu Zuofu Memorial Hall "protection and reuse" repair and protection methods, as well as Lu Zuofu Memorial Museum will be a combination of cultural display, ideological education, cultural experience and tourism and so on. Analyze the "protection and reuse" protection method of the real needs and with the former planning after the assessment of the renovation and protection … Read more →

Abstract.The Loess Plateau is an important source of Eastern civilization, but also the most serious soil erosion in our country and in the world. Controlling soil erosion and improving the ecological environment are not only the needs of local social and economic development, but also the needs of long-term peace and stability of the country. Since the 1950s, large-scale soil and water conservation work has been carried out on the Loess Plateau. It has played a significant role in improving ecological environment, changing agricultural production conditions and developing rural economy. It is a very … Read more →

Abstract.Vocabulary is a basic language unit, the vocabulary size of students directly impacts their performance in English listening, speaking, reading and writing. Therefore vocabulary plays a critical role in language teaching and learning. Based on Krashen’s Input Hypothesis, the use of free voluntary reading during second-language acquisition is considered as a powerful tool in language education. The connotation and features of input hypothesis theory will firstly be analyzed, and then followed by the introduction of Free Voluntary Reading(FVR), and the last comes some specific strategies when … Read more →

Abstract.Cable is an important role in Curtain wall cable structures. In order to detect cable damage in a timely and accurate manner, this paper focuses on the problem of non-stationary nonlinear vibration information and mode mixing in Empirical Mode Decomposition (EMD) itself. Based on the damage detection method combining Variational Mode Decomposition (VMD) and Hilbert Transform (HT), further parameter optimization is carried out. This method determines the penalty factor and decomposition level K by searching for the minimum envelope entropy. VMD is used to decompose the vibration information … Read more →

Abstract.Activated carbon is widely used as an electrode material for electro adsorption due to its rich pore structure and huge specific surface area. This article reviews the principle of electro adsorption treatment, the pore structure characteristics of activated carbon, common methods and latest research results of activated carbon modification, and prospects the development trend of activated carbon modification technology in water treatment. Read more →

Abstract.Using ARIANE7 software, a numerical model was established with reference to a river barging terminal in Chongqing. Single factor sensitivity analysis was used to analyze the sensitivity of different factors to the mooring force at each position of the pontoon. Through the software calculation, the dynamic response analysis of the relative change law of mooring force at each position of the pontoon was carried out, and the sensitivity analysis was carried out under different conditions of simulated wind flow. Read more →

Abstract.The traditional project cost mode is relatively backward, which affects the construction progress and brings a series of technical and economic disputes. With the gradual maturity of the construction industry informatization, the emergence of BIM has brought the dawn to solve this problem, and the comprehensive application of BIM technology has become a new trend in the development of the construction industry. Read more →

Abstract.This paper introduces the theory of EEG technology, operation process and the concept of Kansei Engineering, and discusses how EEG technology can be applied to Kansei Engineering. By recording the EEG signals of participants and analyzing the changes of these signals, EEG technology can help designers to understand the needs and responses of users more deeply, thus optimizing product design and improving user experience and market competitiveness. And the future combination of the two in more aspects is prospected. Read more →

Abstract.At present, the problem of garbage disposal has become an urgent problem to be solved in the global energy technology revolution and transformation and development. The mainstream garbage removal methods are manual picking and mechanical collection, which has low cleaning efficiency and high cleaning cost. In order to realize the convenient and efficient recycling and cleaning of land and water garbage, a new propeller dynamics model is proposed. Through the structural strength analysis and gas-liquid two-phase flow simulation analysis, combined with the aerodynamic theory, the propeller … Read more →

Abstract.A method for bolt deficiency detection on power transmission lines based on YOLOv7 is proposed to address the issues of low detection accuracy and high false negatives in current unmanned aerial vehicle (UAV) inspections. In the Neck module, the existing feature fusion structure is modified by directly combining deep and shallow feature information across adjacent scale feature maps. The prior box sizes in the original YOLOv7 are adjusted to better fit the dimensions and aspect ratios of bolt targets. The improved YOLOv7 algorithm enhances the learning capability of bolt feature information. … Read more →

Abstract.According to the control requirements of robot, the micro controller was designed, including the interface for the wireless transmission module NRF24L01, the sampling circuit for collecting the pressure sensing value, the DC motor drive function module, and the auxiliary circuit for ensuring the normal operation of the controller. After passing the hardware testing, the design of the PTZ control system is completed. The virtual reality environment is constructed using unity and VS software, Oculus is used as the head-mounted display, and then the pose sensor of Oculus is used to analyze and … Read more →

Abstract.The hydraulic fracturing resistance of asphalt concrete core wall mainly depends on physical and mechanical factors such as the material of the core wall and the geometric size of the core wall. Three types of core wall types, such as equal thickness type, gradient type and stepped type, are often used in practical engineering. In order to study the influence of core wall types on the cracking resistance of the core wall, Duncan Zhang E-B model is used to conduct finite element numerical simulation of five different core wall types. By analyzing the stress deformation of the center wall of … Read more →

Abstract.With the rapid development of the information age, images and animations have become the mainstream way of product display at present. At the same time, the development of image processing and technology makes the rapid processing of images become a reality. Through image processing, the proportion of the image subject to the whole image is calculated, and the image sample and its proportion are obtained. A more accurate psychological model of users' needs is obtained by using the joint experiment of eye movement and EEG, and the influence of image subject ratio on users' information … Read more →

Abstract.By analyzing the background of regional tourism and introducing the role of "Internet +" in tourism, we systematically analyze the current status of tourism resources in Liaoning Province as an example, and carry out research on the industrial integration mode of "Internet + Tourism". Research. "Internet+Tourism" is the new direction of modern tourism development, marking the successful transformation of China's tourism industry from single scenic spot development to regional coordinated development, making tourism destinations an open space shared by local residents and tourists, and the new … Read more →

Abstract.Cultivated land soil pollution has seriously affected food security and people's living and health level in our country. Therefore, this study discusses how to use engineering technology to restore polluted land into utilizable land. The author analyzed the present situation of soil pollution development in China by summarizing the domestic and foreign literatures on the treatment of polluted land. Based on the engineering and technical experience of polluted land control and restoration for many years, this paper discusses the engineering and technical points of polluted land physical … Read more →

Abstract.Cooling water system is widely used in industry, transportation and other fields. Reasonable design and optimization of cooling water system is of great significance to reduce energy consumption and realize energy saving and emission reduction. This paper sorted out the articles about the cold water system in recent years, especially the hydraulic balance of pipe network, pointing out that the influence of the hydraulic balance of pipe network on the whole system can not be underestimated. At the same time, the research of cooling water system from the aspects of cooling water system design, … Read more →

Abstract.Soil heavy metal pollution stands as one of the significant challenges facing the global environment today, posing serious threats to human health and ecosystems. In addressing this issue, microalgal biofilms have emerged as a promising bioremediation tool due to their efficient adsorption capabilities. This article provides a comprehensive review of the current status, application cases, and future developments of microalgal biofilms in soil heavy metal adsorption research, aiming to offer insights and guidance for research and practices in the field of environmental remediation. Read more →