Frontiers in Sustainable Development

Analysis of Land Use Type Changes in Yulin City in the 21st Century

Liangyan Yang, Lei Shi — Tue, 21 Nov 2023 00:00:00 -0500

Using remote sensing monitoring data of land use/land cover in China in 2000 and 2020, this study explores the changes in land use types in Yulin City through the land use transfer matrix. The results indicate that the main types of land use in Yulin City are grassland, cultivated land, and unused land. From 2000 to 2020, the order of absolute changes in the area of land use types in the study area is: unused land>grassland>construction land>cultivated land>forest land>water area, and its changes are closely related to national ecological policies; The area of construction land has significantly increased after 2000, which is consistent with the process of urbanization development; The continuous decrease in water area is mainly influenced by natural factors. The changes in land use types in Yulin City are influenced by both natural and social factors, with ecological policies and urbanization development dominating.

Study on the Influence of Ballast Tank Position on the Hydrodynamic Performance of Offshore Wind Turbine

Zaiqiang Wang, Ning Cui, Weixiang Fan — Tue, 21 Nov 2023 00:00:00 -0500

In order to explore the influence of different parameters of fixed ballast in the fan foundation mechanism on the hydrodynamic performance of single-column floating fan, based on potential flow theory, this paper adopts the surface element method and uses ANSYS AQWA to establish the hydrodynamic model of single-column floating fan, and obtains the amplitude response operators in different directions. By comparing the amplitude response operators of different models, the influence of different parameters of fixed ballast on single-column floating fan is discussed and analyzed, which provides a reference for the design optimization of floating offshore fan.

Single Acute Toxicity Test of Eight Pollutants in Reclaimed Water to Q67

Yilun Dai, Jinyang Zhang — Tue, 21 Nov 2023 00:00:00 -0500

Human development and water resources are inseparable, there is no shortage of water resources in the world, but there is a total amount of abundant, can directly use fresh water scarce. At the same time, the distribution of water resources in space and time is not uniform, and different regions have different development degrees and different utilization degrees of water resources.

The Use of Foreign Language Enjoyment in the Promotion of EFL Learners’ Willingness to Communicate

Tao Zhang — Tue, 21 Nov 2023 00:00:00 -0500

Willingness to communicate in a second or foreign language (L2 WTC) is of great importance when it comes to individual difference variables, which influences largely the target language learning process. The growing emphasis on real communication in language learning has greatly promoted studies of L2 WTC and made it a significant goal of L2 pedagogy. In view of that, many potential antecedents of L2 WTC were examined to with anticipations of facilitating it. However, emotional factors, especially positive ones, remain relatively rare touched. Thus, present study aims to explore the effects of foreign language enjoyment, one of the positive emotions applied in pedagogy, upon Chinese high school EFL learners’ WTC through the review of relevant studies, and provide some solutions on how to take advantage of foreign language enjoyment in the promotion of EFL learners’ L2 WTC. The first solution concerns learners’ motivations, interests, and their attitudes towards the target language. The second solution related to teachers themselves, including their enthusiasm, teaching styles and their emotions. While the third solution deals with learning environment, a friendly and safe atmosphere probably leads to higher degrees of FLE, and further more engagement.

Analysis of the Current Situation of Medium and Low Yield Fields in China

Jing Zhang, Yanan Li — Tue, 21 Nov 2023 00:00:00 -0500

The area of medium to low yield farmland in China is huge and widely distributed. As a strategic reserve farmland resource, it is of great significance for ensuring food security. This article systematically reviews the problems of declining fertility, organic matter content, and biodiversity in China's medium and low yield fields, and clarifies the focus on the development of ecological improvement materials in the future. This helps to explore the path to improve green, high yield, and efficient production capacity in low to medium yield fields, and promote the achievement of food security and sustainable development goals.

The Current Situation and Development Trend of Contaminated Land Restoration

Yulu Wei, Wang Jing — Tue, 21 Nov 2023 00:00:00 -0500

In recent years, the situation of land pollution has become increasingly serious, exacerbating the contradiction between supply and demand of land resources, and seriously threatening the red line of arable land and food security. In order to alleviate conflicts, ensure the red line of arable land, protect food security, and increase construction land, it is necessary to combine government policy guidance and use engineering technology to turn polluted land into usable land. By consulting literature and studying the policy orientation of contaminated land, combined with the engineering and technical experience of contaminated land restoration in recent years, this paper explores and summarizes the current situation of contaminated land, the policy orientation and technical means of contaminated land restoration, and finally looks forward to the development trend of global contaminated land restoration technology.

Prediction and Early Warning of Air Quality based on the LSTM-ARIMA Model

Zishan Li, Yan Zhang, Yida Wang — Tue, 21 Nov 2023 00:00:00 -0500

At present, China's economy is transforming from a stage of high-speed growth to a stage of high-quality development. Building an ecological civilization is an important part of the realization of the Chinese dream of national rejuvenation. Air pollution will cause harm to human health, ecological environment, social and economic aspects, and its pollution level is affected by many factors, such as PM2.5, PM10, CO, temperature, wind speed, precipitation and so on. In order to implement the party's 20th spirit, strengthen the coordinated control of pollutants, basically eliminate heavy pollution weather, improve and improve the response and disposal mechanism of heavy pollution weather, a place issued an emergency plan for pollution weather, which will strengthen monitoring and early warning, energy conservation and emission reduction, and minimize the impact of pollution weather. To explore the influencing factors of PM2.5 concentration change, more accurate prediction PM2.5 concentration and AQI index, this paper for the prediction and warning of air quality, using the daily pollutants in January 2015 to April 2023, the data of analysis of PM2.5 concentration, the importance of the top three factors PM10, average temperature, CO as auxiliary variables, to construct the LSTM-ARIMA combination model. First, LSTM was used for multi-factor prediction. In order to improve the accuracy of the prediction results, the prediction error of LSTM was then linearly corrected based on the ARIMA model, the time step was adjusted to observe the previous data, and the prediction results of the model were evaluated by root mean square error (RMSE).

Arsenic Determination in Geological Samples by Atomic Fluorescence Spectrometry

Risheng Li — Tue, 21 Nov 2023 00:00:00 -0500

An atomic fluorescence method was established for the determination of arsenic in geological samples . After sample digestion, arsenic 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.

Exploration of the Current Situation and Future Development of the New Energy Industry

Jianhua Zhang, Zejiong Zhou — Tue, 21 Nov 2023 00:00:00 -0500

The report of the 20th National Congress of the Communist Party of China proposed the policy of "actively and steadily promoting carbon peak and carbon neutrality". In order to improve infrastructure construction and promote regional economic development, Bengbu City has actively responded to the national call for energy conservation and emission reduction. However, there are still problems in its application and development, such as imbalanced technological development, unreasonable industrial structure, and low level of technological research and development. Therefore, sorting out the current development status of the new energy industry in Bengbu City and identifying the main factors that affect the development of the new energy vehicle industry in Bengbu City is of great significance for the good development of new energy in Bengbu City. Based on this, this article conducted a research on the current situation and future development of the new energy industry - taking Bengbu City, Anhui Province as an example. This survey mainly focuses on understanding the current development status of the new energy industry in Bengbu City from the perspective of new energy enterprises. Field research and questionnaire survey methods were used to investigate new energy enterprises in Bengbu City. A total of 220 questionnaires were distributed, of which 202 were valid, with an effective percentage of about 92%. Using SPSS software, establish a multivariate ordered logistic regression model and factor analysis model, and combine SWOT analysis method to comprehensively analyze the development of new energy in Bengbu City.

Research Progress on Soil Erosion Control in Small Watersheds on the Loess Plateau

Yutong Sun, Jing Zhang — Tue, 21 Nov 2023 00:00:00 -0500

Due to the fragility of its natural environment and the strong impact of human activities, the Loess Plateau is one of the regions with the most severe soil erosion in China. The severe soil erosion on the Loess Plateau has caused immeasurable losses to the regional economic development and ecological security. China attaches great importance to the management of soil erosion on the Loess Plateau. After decades of soil erosion control, the ecological environment of the Loess Plateau has been effectively restored, and the social and economic development has also been significant. This study comprehensively reviews the practice and theoretical research of comprehensive management models for soil and water loss in small watersheds both domestically and internationally, and systematically summarizes their soil and water loss management models. Thus providing practical experience and theoretical basis for future soil erosion control in the Loess Plateau, ecological protection in the Yellow River Basin, and high-quality development.

The Use of Cooperative Learning in High School English Writing Teaching

Yuxin Ren — Tue, 21 Nov 2023 00:00:00 -0500

Against the backdrop of the new curriculum and college entrance examination reforms, the weightage of high school English writing scores in college entrance examination papers has increased significantly. Consequently, the expectations for high school English writing have also risen, making it an indispensable aspect of language learning. In this regard, teachers must prioritize students' autonomy, cooperation, and inquiry-based learning experiences, particularly in English classrooms, where they should create an enabling environment for effective English education. High school English teachers must emphasize cooperative learning in writing classes to enhance students' language expression and writing skills. Meanwhile, teachers must continually explore efficient methods of improving students' English writing ability. This paper addresses the challenges facing the current cooperative learning mode in high school English writing teaching and proposes measures to overcome them, hoping to inspire and assist the development of cooperative learning in high school English classes.

The Effect of Salt-dissolving Growth-promoting Rhizobacteria on the Growth of Pepper

Weiwei Chen, Yuhu Luo — Tue, 21 Nov 2023 00:00:00 -0500

Soil salinization is increasing, which seriously threatens the local ecological environment security and affects the development of social economy. Plant growth-promoting rhizobacteria (PGPR) is the bacterial population isolated from rhizosphere soil that has a growth-promoting effect on plants, which is of great significance for improving salt stress. In this study, pepper was used as the research object, and the effect of salt-dissolving and growth-promoting bacteria on pepper plants was studied by pot experiment. A total of 7 treatments were set up, 0 % salt sterility ( CK-0 % ), 0.5 % salt sterility ( CK-0.5 % ), 0 % salt-hydrolyzed salt-promoted strains ( C-0 % ), 0.5 % salt-hydrolyzed salt-promoted strains ( C-0.5 % ), 1 % salt-hydrolyzed salt-promoted strains ( C-1.0 % ), 2.0 % salt-hydrolyzed salt-promoted strains ( C-2.0 % ), 5.0 % salt-hydrolyzed salt-promoted strains ( C-5.0 % ). The results showed that : ( 1 ) The germination rate of pepper seeds inoculated with salt-dissolving and growth-promoting strains was significantly increased, and the salt concentration in the soil had no significant effect on the germination rate of pepper seeds. ( 2 ) Inoculation of salt-solubilizing growth-promoting strains and salt concentration in soil also had no significant effect on the plant height of pepper seeds. ( 3 ) The fresh weight and dry weight of pepper plants inoculated with salt-solubilizing and growth-promoting strains were significantly increased. This study has important scientific and theoretical significance for the more rational application of Plant growth-promoting rhizobacteria.

Research on the Technology of Titanium Containing Inorganic Particle Doped Insulation Paint

Mingwen Gu, Haifeng Zhang, Xiangmu Hu, Yuanhao Jia, Sizhe Qi, Xiang Xie — Tue, 21 Nov 2023 00:00:00 -0500

This paper provides a modified titanium dioxide nanotube with a specific structure made by a specific method. The modified titanium dioxide nanotube exists in a nanotube structure with a smaller size and specific surface area, and the surface hydrophobicity treatment of the modified titanium dioxide nanotube is also given, allowing the modified titanium dioxide nanotube to participate in the cross-linking network of organic resins such as unsaturated polyester resin, On the one hand, it can ensure the uniform dispersion of modified titanium dioxide nanotubes in the insulation paint, fully utilize their chemical stability, and also improve the crosslinking degree of resin curing. On the other hand, it enables the modified titanium dioxide nanotubes in this paper to be applied to the insulation paint with a large doping amount, thereby improving the mechanical and electrical properties of the insulation paint.

Study on the Ecological Planting Mode of Beach Land in Shaanxi Section of Hanjiang River Basin

Yanan Li, Panpan Zhang — Tue, 21 Nov 2023 00:00:00 -0500

In view of the technical difficulties encountered in the construction and development of the agricultural industry chain in the Shaanxi section of the Hanjiang River Basin, such as the problems of crop planting and ecological industry chain construction, the typical research area of the Shaanxi section of the Hanjiang River Basin-Hanzhong City was investigated. By exploring the ecological planting mode of the flood land in the Hanjiang River Basin, the ecological planting mode of the flood land was optimized in order to provide reference for the development of the agricultural planting industry chain of the land consolidation project.

A Brief Discussion on the Application of Situational Language Teaching under the Three Noval Backgrounds

Rong Zhi — Tue, 21 Nov 2023 00:00:00 -0500

Great changes have taken place in foreign language teaching methodology over these years due to the changes of language teaching’s goals and concepts or the development of technologies. As we know, our ultimate teaching goal is to help students become a whole person. Despite the popularity and dominance of communicative language teaching and task-based language teaching in these days, situational language teaching is still implemented by teachers for various education levels to achieve teaching objectives. Even though these days considerable scholars hold a sharp criticism on this teaching method, situational language teaching still has its potential educational value to facilitate language teaching. Faced with three new challenges: new curriculum, new textbooks and new college entrance examination, teachers should explore how to utilize this method to adapt to the requirement of modern language teaching. This paper follows six parts to briefly demonstrate the present author’s comprehension about situational language teaching. The first part is a brief introduction including the background, definition and distinctive features of situational language teaching. The second part is some classic literature review from home and abroad. Next part, opinions on this method will be given and followed by demonstrating the application of this method. The last part is about some pedagogical implications.

Discussion on Comprehensive Utilization and Ecological Management of Coal Gangue

Zhao Wang, Jing Wei — Tue, 21 Nov 2023 00:00:00 -0500

Coal production will continue to increase year by year, and the amount of waste discharged will also increase year by year. In addition, the amount of coal waste accumulated in the past is quite huge. In order to implement the concept of ecological civilization in the new era, reduce the atmospheric, water, and ecological environmental problems caused by the accumulation of coal gangue in the region, solve the safety and environmental risks of existing waste disposal sites, restore the ecological and environmental functions of waste disposal sites and surrounding areas, and improve the comprehensive utilization rate of coal gangue, in accordance with relevant policies such as environmental protection and resource comprehensive utilization, and the requirements for the construction of a "waste free city" in Shenmu City, Combining the actual needs of creating a "waste free enterprise". Therefore, the comprehensive utilization and ecological management of coal gangue has become an urgent and urgent social issue that needs to be studied and solved.

Career Resilience and Improvement Strategies of Enterprise Employees in the Context of Digital Transformation

Xinyue Zhang, Ling Jiang — Tue, 21 Nov 2023 00:00:00 -0500

In the context of digital transformation, the ever-changing new economy has changed the structure and management mode of organizations, and the professional environment has become increasingly complex. The external environment is becoming increasingly unpredictable for employees, which requires them to have stronger career adaptability and better adapt to the dynamic professional environment. Therefore, how to enhance employees' professional resilience and respond to pressure from both internal and external sources within the enterprise has become an urgent issue that requires attention. Based on existing literature, this article sorts out the connotation of occupational resilience and analyzes the important factors that affect the occupational resilience of enterprise employees from three aspects: micro, meso, and macro. Based on this, it proposes strategies for improving the occupational resilience of enterprise employees in terms of individual, organizational, and social support.

Status of Sustainable Development of Efficient Ecological Agriculture in Loess Plateau Gully Region

Na Lei, Yanan Li — Tue, 21 Nov 2023 00:00:00 -0500

At present, the development of efficient ecological agriculture in the loess hilly and gully region is faced with slope problems, gully problems and resource utilization problems. The loess Plateau gully region is the traditional dry farming area in China, and it is also the main grain producing area with a long farming history. Due to natural factors such as terrain fragmentation, rainfall concentration and loose soil, deforestation, reclamation of steep slopes, and overgrazing, human factors such as deterioration of ecological environment, serious soil erosion, reduction of cultivated land resources, and decrease of land productivity in the region have aggravated the food shortage problem in the region. Ecological agriculture is an effective collaborative approach for ecological protection and high-quality agricultural development in the Loess Plateau, and can provide important support for ecological restoration and farmland regulation in the Loess Plateau gully region.

An Comprehensive Overview of Communicative Language Teaching

Yue Huang — Tue, 21 Nov 2023 00:00:00 -0500

As a significant aspect in the history of teaching approaches, communicative teaching deserves our deep contemplation for its significance and value. This article attempts to explore the development process of communicative teaching in the history of Chinese education, starting from its origin background. It aims to redefine its essential characteristics and further examine some highlights and shortcomings of communicative teaching. In addition, with the help of existing research, explore the practical application of communicative approaches in English teaching and propose certain teaching application suggestions. Finally, some comments and prospects were made on the future of communicative teaching.

Research Progress on Attached Culture Technology of Microalgae

Wen Sun, Biao Peng — Tue, 21 Nov 2023 00:00:00 -0500

In order to solve the problem of microalgae biomass harvesting in suspension systems, attached culture systems were proposed. In this system, microalgae are fixed on the surface or inner layer of the carrier and grow in an aggregated form. Compared with suspension culture, attached culture has higher microalgae biomass density and easier dehydration and harvesting processes. The biomass can be harvested by simply separating the carrier containing microalgae from the culture medium.