Abstract.In order to continuously consolidate and expand the effectiveness of soil and water conservation project construction in Shaanxi Province, continuously promote the improvement of project quality and efficiency throughout the entire life cycle, and effectively promote the high-quality development of soil and water conservation projects, combined with the actual situation of Shaanxi Province, we will preliminarily explore the development pattern for the future period of time. Read more →

Abstract.Network representation learning algorithms provide a method to map complex network data into low-dimensional real vectors, aiming to capture and preserve structural information within the network. In recent years, these algorithms have found widespread applications in tasks such as link prediction and node classification in graph data mining. In this work, we propose a novel algorithm based on an adaptive transfer probability matrix. We use a deep neural network, comprising an autoencoder, to encode and reduce the dimensionality of the generated matrix, thereby encoding the intricate … Read more →

Abstract.An atomic fluorescence method was established for the determination of mercury in geological samples. After sample digestion, mercury reacts with potassium borohydride in a specific medium to produce volatile hydride. The fluorescence of characteristic wavelength is emitted under the irradiation of argon loaded quartz atomizer light source, and the fluorescence intensity is proportional to the content of elements. Read more →

Abstract.ESG is an investment philosophy and enterprise evaluation standard that focuses on enterprise environment, society and governance performance rather than financial performance. After the introduction of carbon neutrality, ESG has not only become an important starting point to implement the sustainable development Goals and promote the low-carbon transformation of the economy, but also become a key standard to evaluate the comprehensive level of enterprises. Since Xi Jinping in the fifth plenary session of the eighteenth put forward five development concept, green development mode is strong … Read more →

Abstract.The problem of soil heavy metal pollution is becoming increasingly serious, and Pb is one of the main causes of soil heavy metal pollution due to its toxicity. Phytoremediation technology can reduce the content of heavy metal pollutants and improve soil nutrient conditions, and thus, it is more widely used. Pb in the soil affects the physiological and biochemical processes of plants, which in turn have a toxic effect on plants, causing severe wilting and death. Similarly, Pb also affects plant photosynthesis to varying degrees. This paper details the progress of research on the effects of soil … Read more →

Abstract.Thermal and structural piezoelectric acceleration sensors are complicated and affected by many factors, especially when the sensor works in different temperature environments, its performance and structure will be affected to some extent. In this paper, the interference contact model of piezoelectric sensor is established with the method of bolt preloading, and the finite element analysis is carried out under different interference quantities. Moreover, based on the bolt preload model, the loading method of temperature load is studied, and the structural thermal adaptation characteristics of … Read more →

Abstract.Monoaromatic hydrocarbons (MACHs), also known as aromatic organic compounds, are a general term for benzene and its derivatives. In a broad sense, monoaromatic hydrocarbons include all aromatic compounds. It can be used as an organic solvent in building decoration materials and is also widely used in other industries such as dye manufacturing, rubber manufacturing, pharmaceutical industry, pesticide industry, etc. Therefore, monoaromatic hydrocarbons are common pollutants emitted by human activities and can be widely detected in human living and living environments. With the development of … Read more →

Abstract.Dry farming is a kind of agricultural production mode widely existed in the world, and its soil carbon sequestration potential has attracted much attention. The paper discussed the influencing factors, carbon sequestration process and effect of soil carbon sequestration in dryland farmland. It was concluded that protective tillage measures such as application of organic fertilizer, no-tillage, deep tillage and straw returning could increase the carbon sequestration in surface dryland soil, biodegradable film mulching could promote soil organic carbon fixation, and rational arrangement of crops … Read more →

Abstract.Based on the daily data of temperature and precipitation from 7 meteorological stations in Maowusu Sandy Land from 2000 to 2020, linear regression analysis was used to clarify the characteristics of temperature and precipitation changes in the study area. The results show that the temperature in the Mu Us sandy land showed an overall upward trend from 2000 to 2020, with a growth rate of 0.09 ℃/(10a) and an average temperature of 9.26 ℃; The precipitation shows a fluctuating upward trend, with a growth rate of 4.06mm/a and an average precipitation of 373.75mm. Since the 21st century, there has … Read more →

Abstract.With the development of society, the work health monitoring of medical staff has gradually become an important issue. Long hours of continuous work, high intensity of physical and psychological pressure bring physical health problems for medical staff. In view of this phenomenon, a new type of health monitoring equipment for medical staff is developed, aiming at providing comprehensive health monitoring services. The medical monitoring system uses STM32 single chip microcomputer as the core controller, which has the functions of heart rate monitoring, step statistics, temperature measurement, … Read more →

Abstract.Nitrogen (N) fertilizer is one of the main expenses for crops in high-input agricultural systems. Insufficient use of N is not only responsible for higher cost of crop production, but also for environmental pollution.  Corn is one of the most important crop in the world. Application of N is a primary method used to maintain soil nutrients and increase corn yield.  economic and environmental challenges are driving increased interest in improving NUE.  Opportunities abound for improving NUE through implementation of fundamental BMPs, including selection of genetics with high NUE, development of … Read more →

Abstract.The path planning of handling robot in Chinese medicine factory is the key problem to improve production efficiency and reduce labor cost. In view of the complex layout characteristics in the handling process of Chinese medicine plant, this paper studies and improves the existing path planning algorithm. Firstly, through the analysis of the production environment of the Chinese medicine factory, a suitable map model was established. Then, combined with the operation environment of the handling robot in the Chinese medicine factory, the handling robot has A large number of nodes and many kinds … Read more →

Abstract.At present, unmanned smart farmland in China is in the early stage of demonstration and promotion, and technological research mainly focuses on single machine intelligent control technologies such as autonomous driving and precision operation. However, related technologies such as multi machine collaboration, host machine and machine operation collaboration, as well as collaboration between agricultural production scenarios and autonomous agricultural machine operation, are insufficient. Building unmanned smart farmland is an important way to alleviate the shortage of rural labor and promote … Read more →

Abstract.The new round of land and space planning is an important measure proposed under the background of the strategic deployment of "multiple planning in one" to promote stable growth of the national economy and maintain coordinated regional development. It has achieved the unification of major functional area planning, land use planning, and urban and rural planning. Realize the global, all-round, "triad" type of land and space development, eliminate the differences in land types and unclear map definitions between various government functional departments, determine the scope of land projects, … Read more →

Abstract.Engineering economics is one of the core professional courses offered in engineering majors, which is of great significance in cultivating students' basic engineering literacy and management decision-making ability. In the context of the "Three Comprehensive Education" and curriculum ideological and political education, curriculum teaching has become an important battlefield for universities to achieve their educational goals. It is imperative to integrate ideological and political elements into the teaching of engineering economy courses. Starting from the nature of engineering economics … Read more →

Abstract.With the rapid development of China's economy, the demand for electric energy in society is increasing, which puts forward higher requirements for the structure and scale of the national power network. High voltage direct current transmission is considered a new technology that can effectively alleviate the problems of power resource allocation and transmission. Insulation technology is an important part of high-voltage DC transmission and transformation technology. Currently, research on external insulation components such as silicone rubber sleeves is relatively mature, and there is … Read more →