Abstract.With the improvement of the rural economic level, the industrialization of urbanization has gradually accelerated. At the same time, it has also brought serious damage to the rural water ecological environment. More and more untreated pollutants are directly discharged into the water body, exceeding the self-purification capacity of the water body, resulting in black and odorous water bodies and causing serious water pollution. This study expounded on the characteristics of black and odorous water bodies in rural China, explored the causes of black and odorous water bodies, deeply analyzed the … Read more →

Abstract.With the rapid development of the economy and society, emerging industries such as education, culture, healthcare, and sports are constantly emerging in China, and investment enthusiasm is constantly rising. However, there is still a large amount of potential and resources in China's social sector that have not been fully utilized. This article analyzes the investment environment and current situation in the social sector of Anhui Province and finds that the total investment in the social sector continues to grow, and the overall growth rate of investment in the social sector shows a … Read more →

Abstract.Semiconductor materials are widely researched by scholars of various countries as photocatalytic materials, while Chi-iron ore α-Fe2O3 is the most stable state of all iron oxide because its hexaineal structure is not toxic, good chemical physical stability, easy to recycle and the advantages of narrow belt gaps (2-2.2 eV) show huge potential in various photocatalytic applications. This article briefly describes the research progress of α-Fe2O3 in the field of photocatalytic. Read more →

Abstract.The People's Government of Shaanxi Province issued a notice on the issuance of the Implementation Plan for Accelerating the Construction of High Standard Farmland (Shaanxi Government Office [2020] No. 18), proposing to vigorously promote the construction of high standard farmland and lay a solid foundation for ensuring food security in the province. By 2022, the province will build 6 million acres of high standard farmland with centralized contiguous areas, drought and flood protection, efficient water-saving, stable and high yield, and ecological friendliness.Improving the quality of farmland … Read more →

Abstract.As an emerging two-dimensional transition metal carbide and/or nitride in recent years, MXene has become a research hotspot in many fields such as energy storage, catalysis, and adsorption with its unique two-dimensional layered structure, large specific surface area, excellent electrical conductivity, mechanical stability and magnetic properties. In this paper, the preparation method of two-dimensional material MXenes is briefly described, and its application progress in various fields in recent years is reviewed and summarized. Finally, the existing problems at this stage and the future … Read more →

Abstract.During the completion and acceptance of indoor waterproof engineering, there are common quality problems such as ground water seepage, water leakage, water retention and damp walls in toilets, balconies and kitchens. According to all kinds of current waterproof construction acceptance specifications, combined with the site construction experience, this paper analyzes the manifestations and causes of common waterproof project quality problems, and puts forward prevention and control measures and countermeasures, to improve the comfort of the living environment, to eliminate the hidden dangers … Read more →

Abstract.Electrocoagulation is an electrochemical technology that realizes the removal of pollutants by generating flocculants in situ, which has the advantages of simple operation, easy control, small sludge generation and good treatment effect, and has received widespread attention in the field of drinking water and wastewater treatment. Combined with the mechanism of electrocoagulation reaction, this paper discusses the research progress of electroflocculation technology from the aspects of removing arsenic, phosphate and fluoride ions, and analyzes its combination process, which lays a foundation … Read more →

Abstract.The rise of "sponge city" construction in China has promoted the development of recharge facilities such as rainwater gardens and rainwater seepage wells, but there is a lack of research on the impact of practical projects on groundwater. Rainwater infiltration has the risk of polluting groundwater, so recharging groundwater in these ways may increase the risk of secondary pollution of groundwater. Visualization technology can reveal the occurrence conditions, dynamic characteristics and movement changes of groundwater, and reveal the hydrogeological conditions in the study area. Read more →

Abstract.Artificial neural network, as a nonlinear mapping or adaptive power system made by linking neurons,which can effectively resolve problems such as gradient explosion in stock price prediction processing. Recurrent neural network (RNN) is a common model for processing stock time-series data and is suitable for stock data involving sequential machine learning tasks, but the prediction results are poor when using long time span or nonlinear data for prediction. To address the problems of low prediction accuracy of ordinary neural networks for stock data with poor linearity and the inability of a … Read more →

Abstract.Microalgae have attracted extensive attention in biodiesel, wastewater treatment, food health care, medicine and other fields due to their advantages of short generation cycle, no competition with crops for cultivated land and rich in lipid, protein and polysaccharide. Especially in the current situation of accelerating urbanization and deepening industrialization, the combination of microalgae cultivation and pollution control can not only deal with wastewater and waste gas generated by human activities, but also accumulate lipid, protein and polysaccharide by microalgae themselves, so as to … Read more →

Abstract.This article investigates the problem of scattered burst signal detection based on multiple sensors to obtain overall decisions. In the explosion detection system studied in the article, sensors independently transmit their decisions on measuring explosion information to the data fusion processing terminal, which provides overall decisions based on fusion rules. The researchers focus on the data fusion theory of the distributed parallel detection burst point data fusion system based on the Bayesian rule. This paper has obtained the data fusion rule and sensor decision criteria that make the … Read more →