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Arsenic Determination in Geological Samples by Atomic Fluorescence Spectrometry 利用原子荧光光谱法测定地质样品中的砷含量
Frontiers in Sustainable Development Pub Date : 2023-11-21 DOI: 10.54691/fsd.v3i11.5723
Risheng Li
{"title":"Arsenic Determination in Geological Samples by Atomic Fluorescence Spectrometry","authors":"Risheng Li","doi":"10.54691/fsd.v3i11.5723","DOIUrl":"https://doi.org/10.54691/fsd.v3i11.5723","url":null,"abstract":"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.","PeriodicalId":427767,"journal":{"name":"Frontiers in Sustainable Development","volume":"47 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139252634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Single Acute Toxicity Test of Eight Pollutants in Reclaimed Water to Q67 再生水中八种污染物对 Q67 的单一急性毒性试验
Frontiers in Sustainable Development Pub Date : 2023-11-21 DOI: 10.54691/fsd.v3i11.5718
Yilun Dai, Jinyang Zhang
{"title":"Single Acute Toxicity Test of Eight Pollutants in Reclaimed Water to Q67","authors":"Yilun Dai, Jinyang Zhang","doi":"10.54691/fsd.v3i11.5718","DOIUrl":"https://doi.org/10.54691/fsd.v3i11.5718","url":null,"abstract":"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.","PeriodicalId":427767,"journal":{"name":"Frontiers in Sustainable Development","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139254541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Use of Cooperative Learning in High School English Writing Teaching 合作学习在高中英语写作教学中的应用
Frontiers in Sustainable Development Pub Date : 2023-11-21 DOI: 10.54691/fsd.v3i11.5726
Yuxin Ren
{"title":"The Use of Cooperative Learning in High School English Writing Teaching","authors":"Yuxin Ren","doi":"10.54691/fsd.v3i11.5726","DOIUrl":"https://doi.org/10.54691/fsd.v3i11.5726","url":null,"abstract":"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.","PeriodicalId":427767,"journal":{"name":"Frontiers in Sustainable Development","volume":"14 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139254393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of Land Use Type Changes in Yulin City in the 21st Century 21 世纪玉林市土地利用类型变化分析
Frontiers in Sustainable Development Pub Date : 2023-11-21 DOI: 10.54691/fsd.v3i11.5716
Liangyan Yang, Lei Shi
{"title":"Analysis of Land Use Type Changes in Yulin City in the 21st Century","authors":"Liangyan Yang, Lei Shi","doi":"10.54691/fsd.v3i11.5716","DOIUrl":"https://doi.org/10.54691/fsd.v3i11.5716","url":null,"abstract":"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.","PeriodicalId":427767,"journal":{"name":"Frontiers in Sustainable Development","volume":"103 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139252549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Comprehensive Overview of Communicative Language Teaching 全面概述交际语言教学
Frontiers in Sustainable Development Pub Date : 2023-11-21 DOI: 10.54691/fsd.v3i11.5734
Yue Huang
{"title":"An Comprehensive Overview of Communicative Language Teaching","authors":"Yue Huang","doi":"10.54691/fsd.v3i11.5734","DOIUrl":"https://doi.org/10.54691/fsd.v3i11.5734","url":null,"abstract":"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.","PeriodicalId":427767,"journal":{"name":"Frontiers in Sustainable Development","volume":"103 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139254182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Current Situation and Development Trend of Contaminated Land Restoration 污染土地修复的现状与发展趋势
Frontiers in Sustainable Development Pub Date : 2023-11-21 DOI: 10.54691/fsd.v3i11.5721
Yulu Wei, Wang Jing
{"title":"The Current Situation and Development Trend of Contaminated Land Restoration","authors":"Yulu Wei, Wang Jing","doi":"10.54691/fsd.v3i11.5721","DOIUrl":"https://doi.org/10.54691/fsd.v3i11.5721","url":null,"abstract":"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.","PeriodicalId":427767,"journal":{"name":"Frontiers in Sustainable Development","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139254571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Effect of Salt-dissolving Growth-promoting Rhizobacteria on the Growth of Pepper 盐溶生长促进根瘤菌对辣椒生长的影响
Frontiers in Sustainable Development Pub Date : 2023-11-21 DOI: 10.54691/fsd.v3i11.5727
Weiwei Chen, Yuhu Luo
{"title":"The Effect of Salt-dissolving Growth-promoting Rhizobacteria on the Growth of Pepper","authors":"Weiwei Chen, Yuhu Luo","doi":"10.54691/fsd.v3i11.5727","DOIUrl":"https://doi.org/10.54691/fsd.v3i11.5727","url":null,"abstract":"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.","PeriodicalId":427767,"journal":{"name":"Frontiers in Sustainable Development","volume":"147 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139250885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research Progress on Soil Erosion Control in Small Watersheds on the Loess Plateau 黄土高原小流域水土流失控制研究进展
Frontiers in Sustainable Development Pub Date : 2023-11-21 DOI: 10.54691/fsd.v3i11.5725
Yutong Sun, Jing Zhang
{"title":"Research Progress on Soil Erosion Control in Small Watersheds on the Loess Plateau","authors":"Yutong Sun, Jing Zhang","doi":"10.54691/fsd.v3i11.5725","DOIUrl":"https://doi.org/10.54691/fsd.v3i11.5725","url":null,"abstract":"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.","PeriodicalId":427767,"journal":{"name":"Frontiers in Sustainable Development","volume":"25 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139251994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prediction and Early Warning of Air Quality based on the LSTM-ARIMA Model 基于 LSTM-ARIMA 模型的空气质量预测和预警
Frontiers in Sustainable Development Pub Date : 2023-11-21 DOI: 10.54691/fsd.v3i11.5722
Zishan Li, Yan Zhang, Yida Wang
{"title":"Prediction and Early Warning of Air Quality based on the LSTM-ARIMA Model","authors":"Zishan Li, Yan Zhang, Yida Wang","doi":"10.54691/fsd.v3i11.5722","DOIUrl":"https://doi.org/10.54691/fsd.v3i11.5722","url":null,"abstract":"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).","PeriodicalId":427767,"journal":{"name":"Frontiers in Sustainable Development","volume":"62 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139252044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on the Technology of Titanium Containing Inorganic Particle Doped Insulation Paint 含钛无机颗粒掺杂绝缘漆技术研究
Frontiers in Sustainable Development Pub Date : 2023-11-21 DOI: 10.54691/fsd.v3i11.5728
Mingwen Gu, Haifeng Zhang, Xiangmu Hu, Yuanhao Jia, Sizhe Qi, Xiang Xie
{"title":"Research on the Technology of Titanium Containing Inorganic Particle Doped Insulation Paint","authors":"Mingwen Gu, Haifeng Zhang, Xiangmu Hu, Yuanhao Jia, Sizhe Qi, Xiang Xie","doi":"10.54691/fsd.v3i11.5728","DOIUrl":"https://doi.org/10.54691/fsd.v3i11.5728","url":null,"abstract":"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.","PeriodicalId":427767,"journal":{"name":"Frontiers in Sustainable Development","volume":"95 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139251293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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