Abstract.Thermosetting polydicyclopentadiene (PDCPD) is a new material with high performance, which is expected to replace the traditional steel in the application of cast-in-place formwork components in house construction. In this paper, the finite element model is established by Abaqus to simulate and analyze the floor formwork with the largest size and span in the engineering example, so as to verify the feasibility of this component. The results show that the strength of the floor formwork meets the requirements under the vertical pressure of concrete, but its deformation does not meet the … Read more →

Abstract.Owing to water scarcity, groundwater quality has become an important constraint on sustainable regional development, especially in coastal areas. Coastal groundwater is subject to natural conditions and intense human activities, and the evolution of water quality is extremely complex, with the possibility of seawater intrusion into the groundwater, leading to the salinisation of freshwater aquifers. At present, the commonly used methods for removing groundwater pollution include coagulation, adsorption, biological method, membrane technology, etc., among which the coagulation method is more … Read more →

Abstract.As China continues to strengthen the cultivation of specialized and ultra-new small and micro enterprises, and promote the development of related enterprises in China's basic industries, now "specialization and innovation" enterprises have become a new power to enhance the industrial chain power and high-quality development pattern. However, the development of all kinds of "little giant" enterprises is still in the middle and low end of the industrial chain, the core creativity is still very lacking, and it is easy to be eliminated and replaced in the fierce competition of existing technology … Read more →

Abstract.Electrochemical machining (ECM) is an excellent technique of processing for metallic materials, widely used in the shaping and preparation of metal structural components. According to the size requirements of the processed structures, in this paper, the current status of ECM development is introduced from the aspects of macro-electrochemical machining and micro-electrochemical machining; and its advantages and disadvantages are summarized, which provides significant reference for the further development of ECM. Read more →

Abstract.A recommendation system is an information filtering tool that helps users find the products or services they need from a large amount of information. However, collaborative filtering is quite sensitive to data sparsity and cold start problems, and it may encounter certain difficulties when handling outliers. To address the issue of handling outliers, it is necessary to study and improve the existing collaborative filtering techniques. This paper proposes a personalized recommendation algorithm that integrates collaborative filtering with the Spearman rank correlation coefficient. By combining … Read more →

Abstract.China is a large agricultural country with abundant organic solid waste resources, however it has the characteristics of large amount of resources and low utilization rate. Organic fertilizer fermenter can treat organic solid waste environmentally and effectively. Through literature and data research, this paper summarizes and analyzes the market development status of organic fertilizer fermenter, and summarizes the market characteristics of organic fertilizer fermenters. Read more →

Abstract.The fatigue driving detection and warning system based on EEG signals aims to use EEG technology to monitor the mental state of drivers in real time, so as to identify and warn fatigue driving behavior in time, so as to improve road safety. The design of the system is based on a deep understanding of the connection between EEG signals and the fatigue state, by analyzing the changes in frequency bands such as α wave, β wave, θ wave and δ wave, which are closely related to the alert state and fatigue in humans. The development of the system first considers the main factors induced by fatigue, … Read more →

Abstract.Ofloxacin (OFX) is a third-generation fluoroquinolone antibiotic widely used to treat respiratory diseases and infections. Due to improper discharge treatment, it can be detected in a variety of aquatic environments such as pharmaceutical wastewater and surface water. In addition, ofloxacin is not easily biodegradable, has toxic effects on aquatic organisms and crops, and cannot be fully removed by conventional treatment. Therefore, it is an important research topic to find effective ways to degrade ofloxacin and reduce its harm to human body and environment. Photocatalysis is a technology … Read more →

Abstract.Because of its broad spectrum, low toxicity and high efficiency, azole fungicides are widely used in various types of agricultural production, personal care products, medicines and material surface protection, which inevitably makes them enter various environmental media through surface runoff, rainfall, atmospheric volatilization and farmland irrigation, posing potential threats to the surrounding environment and human health. In rural areas, fungicides sprayed on crops are usually difficult to play a full role, most of which tend to enter the surface by wet sedimentation and other ways, and … Read more →

Abstract.Textbook is the important content of classroom teaching, the main medium of teaching and learning, which plays an important role in teaching. This paper will take the new curriculum standard as the guidance, regarding junior middle school English textbook from PEP edition as a whole, through the analysis of its compiling concept and teaching content and other dimensions to explore the great textbook. After the in-depth analysis of the content of the textbook, it provides reasonable suggestions for modification, so as to better help front-line teachers to use the textbook efficiently. Read more →

Abstract.With the rapid development of the construction industry, the service life of concrete buildings has been severely tested. Due to its characteristics, concrete cracks become inevitable in concrete structures. The existence of cracks seriously affects the durability and safety of concrete. The repair of concrete cracks is an urgent issue. The emerging MICP technology can repair concrete cracks by inducing the precipitation of calcite by microorganisms, which is more economical and environmentally friendly than the traditional crack repair methods, and thus has become a hot research topic in … Read more →

Abstract.This paper reviews the diverse applications of Artificial Intelligence (AI) in agricultural land planning, highlighting how AI enhances agricultural production efficiency, optimizes resource allocation, and strengthens decision-making quality to promote sustainable agriculture. The article discusses AI's role in land suitability analysis, precision agriculture, integration into decision support systems, and the challenges and limitations of technology, emphasizing AI's significant role in advancing sustainable agricultural development and future research directions. Despite challenges such as … Read more →

Abstract.The cement manufacturing industry emits a large amount of CO2 during the production process, exacerbating environmental problems such as greenhouse effect. To solve this problem, researchers in the engineering field have developed a large number of new technologies and products to reduce carbon emissions when using Portland cement concrete. Among them, injecting CO2 into fresh concrete is a direct approach to the topic. However, further research is needed on its carbon sequestration efficiency and whether it will have adverse effects on the durability of concrete structures. This article … Read more →

Abstract.Fault attacks exploit fault injection techniques to compromise cryptographic systems, compromising device operations and leaking secret keys. Lightweight block cipher algorithms are suitable for resource-constrained environments, ensuring security while reducing hardware and software overhead. This paper summarizes the current research status of fault attacks on some lightweight cryptographic algorithms, including block ciphers, stream ciphers, etc. These studies are crucial for addressing system vulnerabilities, protecting personal privacy, and enhancing the stability of embedded systems. The … Read more →

Abstract.This design is based on the FS-MP1A development board, using the STM32MP157A processor. The smart home system includes a door access module, data acquisition and monitoring module, device control module, weather forecast module, and Baidu Cloud interaction module. The door access module mainly uses the sqlite3 database to store residents’ login information and implements password login for unlocking. The monitoring system primarily uses the V4L2 driver for the OV5640 camera, sets the video capture format to YUYN, converts the YUYN format video raw frames to RGB format, and then converts the … Read more →

Abstract.In current agricultural planting, returning straw to the field can effectively improve the physical properties of the soil, increase the organic matter content, enhance the soil's aggregate structure, and further improve soil fertility. This is beneficial for the sowing and production of the next crop, helping to increase yield and quality. However, currently in China, straw treatment is still mainly simple methods such as burning. Some people think that the straw returning to the field is cumbersome, so it has not been widely applied in the agricultural planting process. The article first … Read more →

Abstract.Over the years, industry, agriculture and other human activities have discharged large amounts of organic pollutants into landfills. Among them, color-resistant dissolved organic pollutants have attracted great attention. In order to achieve the safe discharge of wastewater, a variety of treatment technologies have been used to effectively eliminate CDOM in water. In this paper, the most promising electrochemical oxidation (EO) techniques are reviewed, their basic principles are introduced, and the research progress and application status of electrode materials and electrochemical reactors are … Read more →

Abstract.Existing kitchen waste treatment equipment primarily employs biological cultures for high-temperature fermentation of kitchen waste during the secondary decomposition stage. The temperature inside the fermentation chamber is mainly achieved by heating the air through electric heating tubes. However, this method of electric heating still possesses numerous shortcomings, such as high power consumption and significant energy loss. Given the aforementioned reasons, this article proposes a heat pump drying device specifically designed for the moisture removal process during the fermentation … Read more →

Abstract.As global food security increasingly becomes a focus, challenges faced by Chinese agriculture are particularly prominent. This study introduces an intelligent monitoring and control system for soil temperature and humidity using ZigBee technology, aimed at enhancing agricultural production efficiency and crop yield. The system's core, equipped with an STC89C52 microcontroller and DHT11 temperature and humidity sensors, gathers data and wirelessly transmits it to a central control unit via ZigBee modules, which then automatically adjusts the agricultural production environment to ensure crops … Read more →