Creating a 3D terrain or a wave surface takes a lot of time for a graphic artist in the 3D game creation process. This problem poses the following computer requirements: the generated terrain surface must be both random at all points, but also smooth and curved, and the difference between the vertices must be controlled by the input parameter. This paper will upgrade the Gaussian Process (GP) from 2D to 3D in order to solve this terrain generation problem. In addition, when the generated surface becomes very large, GP requires a large amount of computation related to matrix analysis. This paper proposes an approximate solution to speed up the computation.
{"title":"Generating random terrains in 3D games by an approximated version of Gaussian process","authors":"","doi":"10.56824/vujs.2022a047","DOIUrl":"https://doi.org/10.56824/vujs.2022a047","url":null,"abstract":"Creating a 3D terrain or a wave surface takes a lot of time for a graphic artist in the 3D game creation process. This problem poses the following computer requirements: the generated terrain surface must be both random at all points, but also smooth and curved, and the difference between the vertices must be controlled by the input parameter. This paper will upgrade the Gaussian Process (GP) from 2D to 3D in order to solve this terrain generation problem. In addition, when the generated surface becomes very large, GP requires a large amount of computation related to matrix analysis. This paper proposes an approximate solution to speed up the computation.","PeriodicalId":447825,"journal":{"name":"Vinh University Journal of Science","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122910381","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}
Economic is the greatest and most dynamic sector of the particularly extensive strategic relationship between Vietnam and Japan. In this sector, commercial cooperation plays an important role. The paper focused on analyzing the fundament of the Vietnam -Japan trade cooperation relationship (2008-2020) to reconstruct the reality of the relationship in terms of scale and structure of goods exchanges during the research period. Based on this analysis, the paper has made comments and suggested solutions to develop trade relations between the two countries in the coming time.
{"title":"The commercial cooperation between vietnam and japan (2008-2020)","authors":"Ton Nu Hai Yen, LE Huy Quyen, Pham Thi Hang","doi":"10.56824/vujs.2022sh22","DOIUrl":"https://doi.org/10.56824/vujs.2022sh22","url":null,"abstract":"Economic is the greatest and most dynamic sector of the particularly extensive strategic relationship between Vietnam and Japan. In this sector, commercial cooperation plays an important role. The paper focused on analyzing the fundament of the Vietnam -Japan trade cooperation relationship (2008-2020) to reconstruct the reality of the relationship in terms of scale and structure of goods exchanges during the research period. Based on this analysis, the paper has made comments and suggested solutions to develop trade relations between the two countries in the coming time.","PeriodicalId":447825,"journal":{"name":"Vinh University Journal of Science","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122411788","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}
In this study, a commercial insecticide, Altach 5EC, has been used to investigate its cytotoxic effects on chromosomes and mitosis of cells in the root tip of Allium fistulosum L. The result indicated that Altach 5EC which contaning two different concentrations of alphacypermethrin (0,047 mg/ml and 0,062 mg/ml) were used to treat the root tips for 8 hours led to a decrease in the mitosis index compared to the negative control. Especially, various types of chromosomal mutations were observed such as broken chromosomes, chromosomal bridges, and slow-moving chromosomes. At the same time, numerous disturbances of mitosis were observed, which added the data for the practice lesson of Mitosis. These disturbances included sticky chromosomes, metaphase disturbance, fault polarization in anaphase and telophase, and sticky metaphase. The study revealed that Altach 5EC is a suitable commercial insecticide for effectively treating the roots of Allium fistulosum L. in both the “Chromosomal Structural Mutations” and “Mitosis” lessons within Genetics - Evolution subject at Biology Department, Vinh University.
{"title":"Using Altach 5EC to treat the roots of Allium fistulosum L. contributing to improving the effectiveness of the “Chromosomal structural mutations” exercises in Genetics - Evolution at Biology Department, Vinh university","authors":"Nguyen Thi Thao, Nguyen Thi Tam","doi":"10.56824/vujs.2022nt21","DOIUrl":"https://doi.org/10.56824/vujs.2022nt21","url":null,"abstract":"In this study, a commercial insecticide, Altach 5EC, has been used to investigate its cytotoxic effects on chromosomes and mitosis of cells in the root tip of Allium fistulosum L. The result indicated that Altach 5EC which contaning two different concentrations of alphacypermethrin (0,047 mg/ml and 0,062 mg/ml) were used to treat the root tips for 8 hours led to a decrease in the mitosis index compared to the negative control. Especially, various types of chromosomal mutations were observed such as broken chromosomes, chromosomal bridges, and slow-moving chromosomes. At the same time, numerous disturbances of mitosis were observed, which added the data for the practice lesson of Mitosis. These disturbances included sticky chromosomes, metaphase disturbance, fault polarization in anaphase and telophase, and sticky metaphase. The study revealed that Altach 5EC is a suitable commercial insecticide for effectively treating the roots of Allium fistulosum L. in both the “Chromosomal Structural Mutations” and “Mitosis” lessons within Genetics - Evolution subject at Biology Department, Vinh University.","PeriodicalId":447825,"journal":{"name":"Vinh University Journal of Science","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124023814","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}
Nguyen Nang An, Tran Thanh Trung, Tran Kim Hoan, Nguyen Tuan Anh, Pham Minh Doanh
Along with the development of science and technology, especially internet of things (IOT), IOT-related products increasingly contribute to improving people’s life. Among those products, it is impossible not to mention smarts city, internet of Vehicle devices and especially smart home, which are usually voice controlled. Therefore, voice processing technology is also in need of improvement. The article mainly focuses on processing human voice independently of text. In particular, Convolutional network (CNN) and Support Vector Machine (SVM) will be integrated to create Feature Building Machine. SVMs are often used in voice and image classification, which accordingly is a critical and swift data sorter. The article analyzes the advantages of the combination Deep Neural Network (DNN) and SVMs in voice recognition and is the foundation to develop devices for smart home. The experimental results, which was used in the standard Voxceleb database, demonstrate the superiority in sound recognition compared to traditional i-vector methods or other CNN methods.
随着科技尤其是物联网的发展，物联网相关产品越来越多地为人们的生活做出贡献。在这些产品中，不可能不提到智能城市，车联网设备，特别是智能家居，它们通常是语音控制的。因此，语音处理技术也需要改进。本文主要研究独立于文本的人类语音处理。特别是将卷积网络(CNN)和支持向量机(SVM)相结合，形成Feature Building Machine。支持向量机通常用于语音和图像分类，因此它是一种关键和快速的数据分类器。分析了深度神经网络(DNN)与支持向量机(svm)相结合在语音识别中的优势，为智能家居设备的开发奠定了基础。在标准Voxceleb数据库中使用的实验结果表明，与传统的i向量方法或其他CNN方法相比，该方法在声音识别方面具有优势。
{"title":"Integrate deep neural network and support vector machine to improve the quality of voice processing in internet of things devices","authors":"Nguyen Nang An, Tran Thanh Trung, Tran Kim Hoan, Nguyen Tuan Anh, Pham Minh Doanh","doi":"10.56824/vujs.2023a005","DOIUrl":"https://doi.org/10.56824/vujs.2023a005","url":null,"abstract":"Along with the development of science and technology, especially internet of things (IOT), IOT-related products increasingly contribute to improving people’s life. Among those products, it is impossible not to mention smarts city, internet of Vehicle devices and especially smart home, which are usually voice controlled. Therefore, voice processing technology is also in need of improvement. The article mainly focuses on processing human voice independently of text. In particular, Convolutional network (CNN) and Support Vector Machine (SVM) will be integrated to create Feature Building Machine. SVMs are often used in voice and image classification, which accordingly is a critical and swift data sorter. The article analyzes the advantages of the combination Deep Neural Network (DNN) and SVMs in voice recognition and is the foundation to develop devices for smart home. The experimental results, which was used in the standard Voxceleb database, demonstrate the superiority in sound recognition compared to traditional i-vector methods or other CNN methods.","PeriodicalId":447825,"journal":{"name":"Vinh University Journal of Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132422640","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}
Ngo Huu Huy, Bui Van Tung, LE Hung Linh, Nguyen Duy Minh
Garbage classification has always been an important issue in environmental protection, resource recycling, and social livelihood. However, garbage classification takes a lot of time and effort. Moreover, garbage classification directly affects the health of workers. Currently, due to the development of artificial intelligence, advanced garbage classification robots are being used more and more in recycling factories. With the sufficient support of robots integrated with artificial intelligence technology, garbage will be more and more quickly processed and accurately classified. Therefore, this study presents an efficient and simple garbage classification model based on deep learning technology. This model will automatically and accurately classify garbage, thereby freeing up human labors. In this paper, the ResNet-50 model was used to develop the system. The input data includes images of garbage types to perform classification, and 3 different groups of garbage will be classified. The experimental results demonstrate the effectiveness of this model.
{"title":"Garbage classification using deep learning technology","authors":"Ngo Huu Huy, Bui Van Tung, LE Hung Linh, Nguyen Duy Minh","doi":"10.56824/vujs.2022a048","DOIUrl":"https://doi.org/10.56824/vujs.2022a048","url":null,"abstract":"Garbage classification has always been an important issue in environmental protection, resource recycling, and social livelihood. However, garbage classification takes a lot of time and effort. Moreover, garbage classification directly affects the health of workers. Currently, due to the development of artificial intelligence, advanced garbage classification robots are being used more and more in recycling factories. With the sufficient support of robots integrated with artificial intelligence technology, garbage will be more and more quickly processed and accurately classified. Therefore, this study presents an efficient and simple garbage classification model based on deep learning technology. This model will automatically and accurately classify garbage, thereby freeing up human labors. In this paper, the ResNet-50 model was used to develop the system. The input data includes images of garbage types to perform classification, and 3 different groups of garbage will be classified. The experimental results demonstrate the effectiveness of this model.","PeriodicalId":447825,"journal":{"name":"Vinh University Journal of Science","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129542928","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}
The studies on the birds in western Nghe An as well as shouthwestern Nghe An have been carried out for a long time by numerous authors, mainly in national parks and nature reserve such as Pu Mat, Pu Huong, and Pu Hoat. However, these studies have been conducted for a long time and need to be updated. During the study period in Pu Xai Lai Leng area (Ky Son district) and Pu Mat National Park, 18 species of birds were recorded in addition to this area, including 8 additional species for Pu Xai Lai Leng area and 10 species for Pu Mat National Park.
{"title":"New records of birds from the high mountain area in the southwest of Nghe An province, Vietnam","authors":"Ong Vinh An, Nguyen Sy Quoc","doi":"10.56824/vujs.2023a002","DOIUrl":"https://doi.org/10.56824/vujs.2023a002","url":null,"abstract":"The studies on the birds in western Nghe An as well as shouthwestern Nghe An have been carried out for a long time by numerous authors, mainly in national parks and nature reserve such as Pu Mat, Pu Huong, and Pu Hoat. However, these studies have been conducted for a long time and need to be updated. During the study period in Pu Xai Lai Leng area (Ky Son district) and Pu Mat National Park, 18 species of birds were recorded in addition to this area, including 8 additional species for Pu Xai Lai Leng area and 10 species for Pu Mat National Park.","PeriodicalId":447825,"journal":{"name":"Vinh University Journal of Science","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116872985","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}
Vietnamese society during the French colonial period (1867 - 1945) was marked by the French colonization of three provinces in the western region of Cochinchina, turning this land in particular and Cochinchina in general into a colony of France. At that time, Southwest Vietnam still had many deserted areas, interlaced rivers and canals, which were not convenient for exploitation. However, the Southwest region will bring great benefits in terms of rice, seafood, etc. if it is invested. Therefore, the French colonialists boldly invested in irrigation and drainage in the Southwest region in various forms such as: dredging the old canals, digging a number of great canals, etc. to serve economic, political and military purposes for France. Therefore, the irrigation and canal system in the Southwest region had many changes during this period. Residents’ mobility became easier, the trade between regions becomes favorable, that has contributed to the economic and social transformation of the Southwest region. However, within the scope of this article, we mainly refer to the digging and dredging of canals in the southwestern region of the French colonial period; thereby drawing some comments on the characteristics of the canal system in the Southwest of Vietnam during this period.
{"title":"The digging and dredging of canals in the southwest of vietnam during the french colonial period (1867-1945)","authors":"Nguyen Ngoc Huyen","doi":"10.56824/vujs.2022sh03","DOIUrl":"https://doi.org/10.56824/vujs.2022sh03","url":null,"abstract":"Vietnamese society during the French colonial period (1867 - 1945) was marked by the French colonization of three provinces in the western region of Cochinchina, turning this land in particular and Cochinchina in general into a colony of France. At that time, Southwest Vietnam still had many deserted areas, interlaced rivers and canals, which were not convenient for exploitation. However, the Southwest region will bring great benefits in terms of rice, seafood, etc. if it is invested. Therefore, the French colonialists boldly invested in irrigation and drainage in the Southwest region in various forms such as: dredging the old canals, digging a number of great canals, etc. to serve economic, political and military purposes for France. Therefore, the irrigation and canal system in the Southwest region had many changes during this period. Residents’ mobility became easier, the trade between regions becomes favorable, that has contributed to the economic and social transformation of the Southwest region. However, within the scope of this article, we mainly refer to the digging and dredging of canals in the southwestern region of the French colonial period; thereby drawing some comments on the characteristics of the canal system in the Southwest of Vietnam during this period.","PeriodicalId":447825,"journal":{"name":"Vinh University Journal of Science","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125012501","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}
The teaching staff has a very important position and role, is a factor that plays a decisive role in the quality of teaching National Defense and Security Education at universities. However, the quality of the teaching staff in charge of National Defense and Security Dducation, besides the advantages, still exists some certain limitations. Through analyzing and explaining theoretical and practical issues about the quality of the teaching staff, some key solutions have been proposed to improve the quality of these lecturers, meeting the current requirements of education and training innovation.
{"title":"Improve the quality of the teaching staff of national defense and security education in universities in vietnam","authors":"Tran Viet Quang, Tran Cao Nguyen, Nguyen Ho Thanh","doi":"10.56824/vujs.2022sh19","DOIUrl":"https://doi.org/10.56824/vujs.2022sh19","url":null,"abstract":"The teaching staff has a very important position and role, is a factor that plays a decisive role in the quality of teaching National Defense and Security Education at universities. However, the quality of the teaching staff in charge of National Defense and Security Dducation, besides the advantages, still exists some certain limitations. Through analyzing and explaining theoretical and practical issues about the quality of the teaching staff, some key solutions have been proposed to improve the quality of these lecturers, meeting the current requirements of education and training innovation.","PeriodicalId":447825,"journal":{"name":"Vinh University Journal of Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129388885","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}
The article presents modern trends in testing and assessing learning outcomes in the direction of developing the quality and capacity of high school students. The basic signs of difference between assessing learners' ability and assessing learners' knowledge and skills are also studied and synthesized. A tool to test and evaluate the topic of frictional force in the direction of developing the quality and capacity of students in teaching Physics has been designed. Based on the experimental results of pedagogy at Tuong Duong 1 High School, the effectiveness of the proposed tools has been evaluated, thereby proposing solutions to improve the efficiency of testing and assessment in the direction of developing the quality and competence of students.
{"title":"Design tools to evaluate the topic of friction force in the direction of developing students’ quality and capacities","authors":"N. Thanh Cong","doi":"10.56824/vujs.2021ed07","DOIUrl":"https://doi.org/10.56824/vujs.2021ed07","url":null,"abstract":"The article presents modern trends in testing and assessing learning outcomes in the direction of developing the quality and capacity of high school students. The basic signs of difference between assessing learners' ability and assessing learners' knowledge and skills are also studied and synthesized. A tool to test and evaluate the topic of frictional force in the direction of developing the quality and capacity of students in teaching Physics has been designed. Based on the experimental results of pedagogy at Tuong Duong 1 High School, the effectiveness of the proposed tools has been evaluated, thereby proposing solutions to improve the efficiency of testing and assessment in the direction of developing the quality and competence of students.","PeriodicalId":447825,"journal":{"name":"Vinh University Journal of Science","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128586087","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}
Along with the development of pragmatics and discourse analysis, it can be said that there are many approaches to discourse markers. The use of discourse markers in spoken discourse to distinguish it from written discourse has become a popular topic among researchers. Discourse markers play a very important role in language, especially in conversation. In addition to the linking function, the discourse markers convey many different meanings in the different contexts in which it is used. Within the scope of this article, an overview of the acting factor and a specific analysis of the discourse marker “well” will be presented. Since then, the article compares this discourse marker through the dialogues of the characters in the very famous novel Gone with the wind by Margaret Mitchell and the translation of Cuốn theo chiều gió by Duong Tuong. Moreover, by analyzing the context in which the discourse marker “well” is used, it is found that one of the functions of the discourse markers is to supplement the information in the conversation between English and Vietnamese.
随着语用学和语篇分析的发展，可以说语篇标记语的研究方法多种多样。在口语语篇中使用语篇标记来区分口语语篇和书面语篇已经成为研究者们的热门话题。话语标记语在语言尤其是会话中起着非常重要的作用。话语标记除了具有连接功能外，还在不同的语境中传达着不同的意义。在本文的研究范围内，我们将概述起作用的因素，并对话语标记语“well”进行具体分析。此后，本文通过玛格丽特·米切尔的著名小说《乱世佳人》中人物的对话和杨通翻译的《Cuốn theo chiều gió》对这一话语标记进行了比较。此外，通过对语篇标记语“well”使用语境的分析，发现语篇标记语的功能之一是在英越语会话中补充信息。
{"title":"Comparison of the discourse marker “well” with its equivalents in \"Gone with the wind\" and the translation of \"Cuốn theo chiều gió\"","authors":"Pham Ngoc Diem","doi":"10.56824/vujs.2022sh17","DOIUrl":"https://doi.org/10.56824/vujs.2022sh17","url":null,"abstract":"Along with the development of pragmatics and discourse analysis, it can be said that there are many approaches to discourse markers. The use of discourse markers in spoken discourse to distinguish it from written discourse has become a popular topic among researchers. Discourse markers play a very important role in language, especially in conversation. In addition to the linking function, the discourse markers convey many different meanings in the different contexts in which it is used. Within the scope of this article, an overview of the acting factor and a specific analysis of the discourse marker “well” will be presented. Since then, the article compares this discourse marker through the dialogues of the characters in the very famous novel Gone with the wind by Margaret Mitchell and the translation of Cuốn theo chiều gió by Duong Tuong. Moreover, by analyzing the context in which the discourse marker “well” is used, it is found that one of the functions of the discourse markers is to supplement the information in the conversation between English and Vietnamese.","PeriodicalId":447825,"journal":{"name":"Vinh University Journal of Science","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122388728","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}
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