bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis on the Research Progress of Remote Sensing Image Change Detection Method
Authors: Wen Zhenwei , Pan Zhongtai 
Published: July 2021

Abstract
Remote sensing image change detection is the detection process of determining the surface change area and change feature type for the same image area from multiple time series remote sensing data. It is the core technical means of land use change detection and land cover change detection, and it is also the key research field of remote sensing applied science. In view of the problems of time-consuming, labor-intensive, and low detection accuracy in the past image change detection methods, researchers in related fields have proposed more and more cutting-edge remote sensing image change detection methods. This article first describes the development of remote sensing image change detection methods, then explains the conventional processing flow of change detection and the conventional methods of change monitoring, and finally discusses the research progress of more mainstream change detection methods.
The Combination of Computer Multimedia Technology and College English Teaching
Authors: Jiang Ting 
Published: July 2021

Abstract
College English is very important for college students, it is an compulsory course for them. If teachers are still based on the traditional teaching methods, and do not effectively apply new technology to promote the innovation and reform of college English teaching, it will lead to low efficiency of college English teaching. What is worse, it will affect the quality of English teaching. In this case, college English teachers need to master the main application characteristics of multimedia technology and the effective method to combine college English and computer multimedia technology. Our teachers should try our best to give full play to the advantages of computer multimedia technology during college English teaching. In this process, it is necessary to study and analyze the existing problems and deficiencies of college English teaching, and understand the specific development of computer multimedia technology. Only in this way can we take effective measures to promote the combination of computer multimedia technology and college English teaching, and improve the level of college English teaching.
Design and Implementation of “multi survey integration” Management Service Platform
Authors: Su Xiaoxia , Cheng Xiaojun , Wang Baoguo 
Published: July 2021

Abstract
Many cities have carried out the construction of “multi survey integration” management service platform, which implement the requirements of the state council on the sharing and utilization of surveying and mapping results involved in the approval of engineering construction projects, and promote the implementation of the reform of “multi survey integration”. The platform realize the standardization, flow and informatization of “multi survey integration” management, reduce the burden of enterprises and improve the approval efficiency. This paper expounds the construction idea, system architecture, function design and key technology of the “multi survey integration” management service platform in detail, and realizes the design idea discussed in this paper through the construction of the “multi survey integration” management information system platform in Jiangxi Province. The establishment of the system realizes the online entrustment and management of the “multi survey integration” project in Jiangxi Province, the management and sharing of surveying and mapping results The functions of supervision of surveying and mapping units and projects, quality inspection and audit of surveying and mapping results provide information support for the steady progress of the “multi survey integration” reform.
Research on Building Height Extraction Method from High-resolution Image
Authors: Tang Hao , Du Linlin , Wang Chun , Li Pengfei , Ge Shuangquan , Meng Dezhuang 
Published: July 2021

Abstract
In recent years, there are many researches on calculating the height of buildings by extracting the shadow of buildings, but this method is difficult to be realized in the case of dense buildings or complex ground. To solve this problem, we can use the side information of the building to retrieve the height of the building. In this paper, Otsu Algorithm and LVQ neural network are used to extract the side information of buildings from high-resolution remote sensing images, calculate its length, and then calculate the height of the building according to the physical model of imaging. Compared with the measured building height, the calculation results of this method can meet the accuracy requirements of building height calculation, and this method can complement the results of shadow extraction method. Finally, the height information of most buildings in the area can be obtained.
Research on location method based on monocular vision
Authors: Chen Hao , Lin Meian , Xue Lixia , Gao Tian , Zhu Haojie 
Published: July 2021

Abstract
Monocular vision based positioning method is easy to operate and has a wide application prospect. The monocular vision ranging method proposed in this paper can get the position of the target object from the camera and the angle away from the camera, so as to achieve accurate positioning. In addition, the world coordinate system can be constructed, so that the distance between two or more target objects can be obtained, and the accuracy is high.
Impact of resolution of DEM on the calculation of design floods in a small mountainous basin
Authors: Labat Marija Mihaela , Aleksić Milica , Hlavčová Kamila , Földes Gabriel 
Published: July 2021

Abstract
A Digital Elevation Model (DEM) is a powerful tool for representing the surface of a particular area of interest. The containing data in the DEM is used for determining the characteristics of the surface. The main factor regarding the quality of such data is the resolution of the DEM. In this paper, the authors focus on the impact of the resolution of the two DEMs that were used to calculate a design flood in the Boca River basin. The Boca River basin is a small mountainous catchment located in the Low Tatras National Park in Slovakia. The authors have used digital elevation models of the Boca River basin with a 20 x 20 m and 1 x 1 m resolution of the raster and the S- JTSK coordinate system. The DEMs were downloaded from the Basic Database for GIS (ZBGIS®) which is a part of the spatial database of the cadastral information system in Slovakia. The design values of short-term rainfalls from actual observations from the Kráľová Lehota - Čierny Váh climatological station and the Corine Land Cover land use map for 2018 were used as an input for the calculation of the design floods. The design floods (Qn)were estimated for the return period (N) of 10, 20, 50 and 100 years, using the Soil Conservation Service - Curve Number method, and ArcGIS software and raster tools. The peak design floods were estimated by calculating the time concentration, the maximum potential river basin retention, the design rainfall intensity, the depth of the runoff, and the volume of the flood wave. The aim of the paper was to compare the results of these calculations when the two different quality resolution DEMs are used. The results show that the design floods calculated using the more precise DEM with a 1 x 1 m raster were lower by 3.9% than the design floods calculated using the DEM with the 20 x 20 m raster.
Regulations and methods for disposal of waste drilling fluid
Authors: Sui Dianjie , Zhan Mingwang , Sui Dianxue , Zhao Fulei 
Published: July 2021

Abstract
With the emphasis on environmental protection, drilling process in the disposal of waste drilling fluid is also more and more attention by drilling people in recent years. Based on the current development status of waste drilling fluid disposal method in home and start from waste drilling fluids of the China, this paper discussed respectively of the processing method of based waste drilling fluid in the disposal of waste drilling fluids, and the field application situation. It is more convenient to choose the disposal method of abandoned drilling fluid which is suitable for a certain area, and it will be helpful to the field work.
Research on Main Controlling Factors of Fracturing Reformation of Ancient Sandstone Horizontal Wells in Jingbian Gas Field
Authors: Xu Tonghao , Gong Yufeng , Jin Min 
Published: July 2021

Abstract
From 2015 to 2019, a total of 7 wells in the Shan 28 well area of the Jingbian gas field used pumped bridge plug staged fracturing technology. The average test gas daily gas production rate is 8.13×104m3/d, and the average unblocked flow rate is 46.06×104m3/d, Demonstrating the superiority of the staged fracturing reconstruction process of pumping bridge plugs, However, due to the short time of using the pumped bridge plug staged fracturing process, the main controlling factors of fracturing reformation are not clear, resulting in a large gap between the gas production effect of the reformed well and the expected. Therefore, based on the site construction parameters, this paper uses single factor analysis and grey correlation analysis methods to determine the main control factors for fracturing reformation of the ancient sandstone horizontal well in the Jingbian gas field. Research shows that the length of gas layer, liquid type, average sand ratio, and sand volume are the main factors affecting the open flow and daily gas production of horizontal wells. The research results in this paper have certain guiding significance for the effective development of ancient sandstone horizontal wells.
Construction of green development index system of China inter provincial mining industry
Authors: Huang Jie , Yue Peng 
Published: July 2021

Abstract
The green development index of China inter provincial mining industry is put forward in this paper, and its background significance is analyzed. Based on the concept of combining green and development, the index system framework is constructed from four aspects of resource saving, environment-friendly, structure optimization and management strengthening. Delphi method and analytic hierarchy process are used to calculate the index weight, and the index standardization and index calculation method are proposed. The index system can evaluate the level of green development of China inter provincial mining industry, and objectively show the differences in time and space of green development of mining industry. It is of great significance to promote the green development of mining industry and accelerate the construction of green mine.
Application of multi-source information intelligent early warning system for coal and gas outburst
Authors: Che Yuheng 
Published: July 2021

Abstract
The construction and application of a multi-source information comprehensive early warning system for coal and gas outburst in Xinjing Mine is described. First of all, through a large number of statistical analysis work of mine gas dynamic phenomenon, master the internal laws and characteristics of coal and gas outburst events in Xinjing mine, and use scientific reasoning and analysis methods to establish a multi-source information alarm index system in line with the actual situation of the mine. Secondly, design a professional and efficient early warning data chain structure. Finally, from the information collection end, professional analysis subsystem, the intelligent early warning system is built in three aspects of database to realize the online monitoring, intelligent identification and real-time early warning of prominent hazards. The overall accuracy of the early warning system in Xinjing Mine test period is over 91%, the overall false alarm rate of no outburst danger is less than 9%, and there is no occurrence of the phenomenon of no outburst danger, so the system has a high accuracy of early warning.
Shandong Special Product—Optimization of Phytic Acid Extraction Technology from Weixian Radish and Antioxidant Activity Research
Authors: Yancun Yang , Lei Yuan , Mingzhu Li , Cuiping Li 
Published: July 2021

Abstract
In this experiment, Weixian radish, a specialty of Shandong, was used as raw material, and single factor and orthogonal test methods were used. The extraction process conditions of phytic acid were studied and optimized, and its antioxidant activity was studied. The results of the study showed that the phytic acid in Weixian radish was the optimal condition for the extraction of phytic acid from Weixian radish at the extraction time of 30 minutes, temperature of 25°C, and material-to-liquid ratio of 1:55, and had the greatest impact on the extraction of phytic acid is the temperature. The second was the material-to-liquid ratio, and finally the extraction time. The content of phytic acid extracted under optimal conditions was 0.1276mg/g. The scavenging rate of phytic acid extract under the optimal conditions to DPPH free radical was 30.63%. The .OH radical scavenging rate was 83.12%, the FRAP value was 3.853μmol/L, and the antioxidant effect was significant.
Study on Influencing Factors of Millet Product Consumption Behavior of Residents in Hebei Province-Based on the Perspective of Planned Behavior Theory
Authors: Meng Liu , Hairong Dong , Shuo Cui , Yina Yang , Guomei Zhang 
Published: July 2021

Abstract
As a product with both nutritional value and health function, millet products are favored by more and more consumers. Hebei Province is one of the important provinces whose residents produce millets and consume millet products. And it is of great significance for leading the development of local millet industry to study behavior in millet products consumption. Therefore, this study is based on the survey results of 440 residents in Hebei Province. At the same time, under the guidance of planned behavior theory, this paper analyzes the factors affecting the consumption behavior of millet products of residents by the Binary Logistic model. The results show that: urban and rural residents’ awareness of millet products’ nutritional and health functions, texture, appearance quality, promotion of millet products, product prices, knowledge of millet products, consumers’ gender, age and residence, etc., all have a significant impact on residents’ millet product consumption behavior. Accordingly, this article proposes countermeasures and suggestions for the high-quality development of the millet industry in Hebei Province from the aspects of increasing the research and development of high-yield and high-quality millet varieties, supporting the development of millet deep processing enterprises, and promoting the development of diversified functional millet products.
Sorption Ability of Soil Improvers Based on Sapropel and Biochar to Mineral Fertilizer Nutrients
Authors: Skrylnyk Ievgen , Hetmanenko Viktoriia , Xiao Yidong , Kutova Anzhela , Artemieva Katerina , Zheng Yu , Shi Renkun 
Published: July 2021

Abstract
The aim of this study was to determine the ability of soil improvers based on sapropel and biochar to adsorb macronutrients of mineral fertilizer. The composition of soil improvers varied in the volume ratio of sapropel and biochar. Sequential three-stage irrigation of various mixtures of sand and soil improvers after the application of mineral fertilizer was carried out using the column system. The content of mineral nitrogen, phosphorus and potassium in the filtrate and the initial mixtures was analyzed. The data on the dynamics of leaching out of ammonium and nitrate nitrogen from different mixtures (sand + soil amendment + mineral fertilizer) indicated that the most intensive leaching of NO3–N and NH4 – N occurred after the first irrigation. Increasing of sapropel content in the composition of soil improvers was correlated with the resistance to leaching out of mineral nitrogen from mixtures after irrigation. The ability of soil improvers to fix phosphorus increased in mixtures with the highest input of sapropel. Intensive leaching of potassium from soil improvers under irrigation was observed. Soil improvers with content of 90% of sapropel and 10% of biochar in case of its application into the sand in ratio 4:1 had the best sorption characteristic.
Study on Antioxidant Activity of Anthemis nobilis Extract in Liquid
Authors: Yue LiHong , Wang Shuo , Xie YuXuan , Hou ZhenZhen , Liu Lu , Zhang YueHua 
Published: July 2021

Abstract
The chamomile Anthemis nobilis dried flowers was selected as experimental material, and the active ingredients of Anthemis nobilis were extracted with water to determine the ability to remove DPPH and study the antioxidant capacity of Anthemis nobilis aqueous extracts. Single factor variable method, orthogonal experimental method and response surface method were used to select the optimum time, temperature and material/liquid ratio of chamomile. It achieves the maximum DPPH clearance. The experimental results showed that the time was 140 min. Temperature is set to 30°C; when the ratio of feed to liquid was set at 1:20, the DPPH clearance rate of the effective components in Anthemis nobilis water immersion solution reached a maximum of 96.79%.
Effect of microwave-assisted drying methods on the physicochemical properties of beetroots
Authors: Liu Yan , Sabadash Sergey , Duan Zhenhua 
Published: July 2021

Abstract
In this study, fresh beetroots were dried by five different microwave-assisted drying methods, including high-power microwave drying followed by low-power microwave drying (HMD—LMD), high-power microwave drying followed by hot-air drying (HMD—HD), hot-air drying followed by low-power microwave drying (HD—LMD), high-power microwave drying followed by vacuum drying (HMD—VD), and vacuum drying followed by low-power microwave drying (VD—LMD). After drying, moisture content, color, and rehydration ratio as well as betalains and total phenolic contents of the dried beetroots were investigated. The drying time of each microwave-assisted drying method was also investigated. As for drying time, HMD—LMD lasted 46.0 min compared to VD—LMD which lasted 308.0 min. HD—LMD took 185.0 min less than HMD—HD (230.0 min) and HMD—VD (265.0 min). The beetroots obtained by VD—LMD showed the best color appearance, the highest betalain content and total phenolic content, but its drying time was the longest and rehydration ratio was the lowest. The beetroots obtained using HD—LMD showed the highest rehydration ratio. Considering physicochemical properties of dried beetroots and economics, HD—LMD is a recommended and suitable drying method.
Effect of a chitosan-alginate bilayer coating incorporated with lysozyme on quality of refrigerated turbot fillets
Authors: Li Qiuying , Zhang Jingyang , Zhang Dongdong , Sun Tong 
Published: July 2021

Abstract
Preservation properties of chitosan (CS) and sodium alginate (ALG) coatings are widely investigated, but their bilayer composite coating application to fish preservation is limited. The aim of present study was to evaluate the quality changes in 4°C turbot fillets treated with a bilayer coating based on lysozyme-CS (LZ-CS) coating layer and ALG coating layer. Changes in total viable counts (TVC), texture profiles, and physiochemical indexes including pH, total volatile basic nitrogen (TVB-N), and K value were examined. The results indicated that bilayer coating was more effective than LZ-CS and ALG monolayer coatings in preservation of turbot fillets. The bilayer coating significant inhibited the increase of TVC, pH, TVB-N, and K value, and maintained better texture characteristics of turbot fillets during storage. Therefore, the bilayer coating on the turbot is more superior to monolayer coatings, which would have potential applications on fish preservation.
Effects of LED Light Withering on the Quality of White Tea
Authors: Mu Lidan , Li Tianyu , Tang Jiaojiao , Liu Liping , Wang Ruifang 
Published: July 2021

Abstract
Fresh leaves were used to evaluate the effects of LED light on the main contents of white tea during the withering process. According to the results, the content of tea water extract was increased by LED light withering; tea polyphenols in blue light group was the lowest compared to other treatments; amino acids in red-light group was the highest. LED light withering had obvious effect on the appearance, aroma and taste of white Tea. The tea in red and blue light treatments had natural shape, dark green color, fresh aroma, mellow taste, and in the red-light treatment had flower fragrance; however, the tea in the green light treatment had pure aroma and mellow taste; the sensory evaluation results showed that the quality of the light group was better than that of the control group, and the sensory quality of the comprehensive evaluation was the best.
Free radical scavenging ability of soybean milk fermented by Lactobacillus plantarum YS4 isolated from yak yoghurt in vitro
Authors: Long Xingyao , Li Qin , Zhao Xin 
Published: July 2021

Abstract
The free radical scavenging ability of Lactobacillus plantarum YS4 isolated from naturally fermented yak yoghurt was tested in vitro. DPPH radical (1,1-diphenyl-2-trinitrophenylhydrazine radical), ABTS radical (2,2-diazo-bis (3-ethyl-benzothiazol-6-sulfonic acid) diammonium salt radical) and hydroxyl radical were detected in vitro. The results showed that the DPPH free radical, ABTS free radical and hydroxyl free radical scavenging abilities of soybean milk fermented by Lactobacillus plantarum YS4 were stronger than those fermented by Lactobacillus bulgaricus, and the free radical scavenging ability of soybean milk fermented by Lactobacillus plantarum YS4 and Lactobacillus bulgaricus was better than that of unfermented soybean milk.
Sentiment analysis based on food e-commerce reviews
Authors: Zhang Suoxiang 
Published: July 2021

Abstract
Customer feedback is of great significance for food manufacturers such as wine to improve product quality. With the increase of consumer users, user feedback collection and classification methods in the traditional food industry have become very time-consuming. Aiming at this problem, this paper proposes a method of embedding TD-IDF weighted Word2vec word vector into a bidirectional long and short-term memory network based on the attention mechanism.
Spatiotemporal analysis of global food system robustness
Authors: Wang Shuai , Su Wingting , Dai Ke 
Published: July 2021

Abstract
In the context of the rapid development of the world economy, world food security is still not guaranteed as it should be. Thus, a more rational model is urgently in need. We think that a robust food system should have better efficiency, profitability, sustainability, and fairness, so we selected 18 three-tier indicators and four secondary indicators closely related to the impact factors. Then, we use AHP and correlation analysis to put forward the FSRI model, which has the function of describing the composition of food system and evaluating the robustness of food system. We use spatial auto-correlation analysis to compare the differences in values, geospatial distribution, etc. of the food system before and after optimization. Then, through Grey-Verhulst M model, it is predicted that by 2027, FSRI will grow by 44.56 percent, and optimized systems will be implemented to help achieve the United Nations Millennium Goal of eliminating hungry people by 2030.
Pruning during June promoting blueberry branches growth and Flower Buds formation
Authors: Xie Yongdong , Kang Xiaoru , Liu Ji , Zhu Jiaweng , Guo Qiliang , Wang Xun 
Published: July 2021

Abstract
In this experiment, the growth status and flower bud differentiation of blueberry plants were studied after pruning the second or third buds at the top of the sprouting branches in the northern highbush blueberry cultivar ‘Brigitta’ in southwestern China. The results showed that there was no significant change in the content of ethylene among the five endogenous hormones, but top pruning had a significant effect on the content of the other four hormones, which indicated that top pruning could affect flower bud differentiation by regulating the content of endogenous hormones. The number of florets per panicle was significantly increased, which signified more fruits per panicle, and increased fruit yield.