Pub Date : 2020-10-06DOI: 10.12783/dtetr/mcaee2020/35080
Panyi Li, Aochen Cao, Dan Hu
This paper focused on the relationship between the orientation of an apartment and its property value. Firstly, we used Hedonic model to decompose the characteristic prices of an apartment, and adopted FGLS to estimate the regression parameters to avoid the adverse consequences caused by heteroscedasticity phenomenon. The empirical result shows that the orientation is not the key factor in the demander’s purchase process. Secondly, in the same community, we selected samples facing south and non-south as a test group and a control group. Through paired regression analysis, we find that in Chongqing’s second-hand housing market, compared to the apartment having no south-facing orientation, those with it on average are valued only 1.42% .It is suggested that the evaluation practice should pay more attention to the orientation characteristics and measure orientation value according to local conditions.
{"title":"Southward Premium: The Case of Chongqing, China","authors":"Panyi Li, Aochen Cao, Dan Hu","doi":"10.12783/dtetr/mcaee2020/35080","DOIUrl":"https://doi.org/10.12783/dtetr/mcaee2020/35080","url":null,"abstract":"This paper focused on the relationship between the orientation of an apartment and its property value. Firstly, we used Hedonic model to decompose the characteristic prices of an apartment, and adopted FGLS to estimate the regression parameters to avoid the adverse consequences caused by heteroscedasticity phenomenon. The empirical result shows that the orientation is not the key factor in the demander’s purchase process. Secondly, in the same community, we selected samples facing south and non-south as a test group and a control group. Through paired regression analysis, we find that in Chongqing’s second-hand housing market, compared to the apartment having no south-facing orientation, those with it on average are valued only 1.42% .It is suggested that the evaluation practice should pay more attention to the orientation characteristics and measure orientation value according to local conditions.","PeriodicalId":11264,"journal":{"name":"DEStech Transactions on Engineering and Technology Research","volume":"487 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80140943","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}
Pub Date : 2020-10-06DOI: 10.12783/dtetr/mcaee2020/35026
Boxiang Song, Pai Wang, Jaqing Li
Most of the existing image quality evaluation is to extract image features, and then use support vector regression, sparse representation and other algorithms to evaluate the image quality. In this paper, an adaptive sub-dictionary image evaluation algorithm based on sparse representation is used. By extracting relevant image features such as gradient features and color features, a complete dictionary is first constructed using the features, and then a sparse representation method based on the sub-dictionary is used to obtain the sparse corresponding to the ERT image. Coefficient, the final image quality score is obtained by the corresponding formula.
{"title":"ERT Image Evaluation Based on Sparse Representation Algorithm","authors":"Boxiang Song, Pai Wang, Jaqing Li","doi":"10.12783/dtetr/mcaee2020/35026","DOIUrl":"https://doi.org/10.12783/dtetr/mcaee2020/35026","url":null,"abstract":"Most of the existing image quality evaluation is to extract image features, and then use support vector regression, sparse representation and other algorithms to evaluate the image quality. In this paper, an adaptive sub-dictionary image evaluation algorithm based on sparse representation is used. By extracting relevant image features such as gradient features and color features, a complete dictionary is first constructed using the features, and then a sparse representation method based on the sub-dictionary is used to obtain the sparse corresponding to the ERT image. Coefficient, the final image quality score is obtained by the corresponding formula.","PeriodicalId":11264,"journal":{"name":"DEStech Transactions on Engineering and Technology Research","volume":"159 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79577445","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}
Pub Date : 2020-10-06DOI: 10.12783/dtetr/mcaee2020/35077
Ziyi Xia, Jianzhong Wu
This paper analyzes the influence of taekwondo on youth quality training from the perspective of national fitness which use literature method, logical analysis method. The result shown that there are 24 aspects could be improved by taekwondo. Also taekwondo training has the following key points for the quality training of youth: 1) carefully interpret the relationship between comprehensive fitness and youth quality training; 2) make clear the training objectives and main contents of teenagers' quality; 3) elaborate promotion and teaching steps of taekwondo.
{"title":"A Study on the Cultivation of Youth Quality by Taekwondo in the Context of National Fitness Activities","authors":"Ziyi Xia, Jianzhong Wu","doi":"10.12783/dtetr/mcaee2020/35077","DOIUrl":"https://doi.org/10.12783/dtetr/mcaee2020/35077","url":null,"abstract":"This paper analyzes the influence of taekwondo on youth quality training from the perspective of national fitness which use literature method, logical analysis method. The result shown that there are 24 aspects could be improved by taekwondo. Also taekwondo training has the following key points for the quality training of youth: 1) carefully interpret the relationship between comprehensive fitness and youth quality training; 2) make clear the training objectives and main contents of teenagers' quality; 3) elaborate promotion and teaching steps of taekwondo.","PeriodicalId":11264,"journal":{"name":"DEStech Transactions on Engineering and Technology Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74725676","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}
Pub Date : 2020-10-06DOI: 10.12783/dtetr/mcaee2020/35068
Meng-xin Li, Wen Ge, Wen-zhen Hou, Jun Wu
. With the diversification and individual development of the economy, enterprise competition tends to be international, and traditional production line has disadvantages in terms of efficiency and labor costs. This paper considers reducing workers to reduce labor costs in line-seru. It also considers reducing the number of workers without increasing the manufacturing period of the product to ensure timely delivery. This paper proposes a multi-objective model to solve the problem of reducing the number of workers and not increasing the manufacturing period. The variable length coding heuristic algorithm is used to solve the model. This algorithm is not only suitable for the case of fewer workers, but also has good applicability to medium and large-scale problems.
{"title":"Research on Personnel Allocation Strategies of Reducing Workers in Divisional Seru","authors":"Meng-xin Li, Wen Ge, Wen-zhen Hou, Jun Wu","doi":"10.12783/dtetr/mcaee2020/35068","DOIUrl":"https://doi.org/10.12783/dtetr/mcaee2020/35068","url":null,"abstract":". With the diversification and individual development of the economy, enterprise competition tends to be international, and traditional production line has disadvantages in terms of efficiency and labor costs. This paper considers reducing workers to reduce labor costs in line-seru. It also considers reducing the number of workers without increasing the manufacturing period of the product to ensure timely delivery. This paper proposes a multi-objective model to solve the problem of reducing the number of workers and not increasing the manufacturing period. The variable length coding heuristic algorithm is used to solve the model. This algorithm is not only suitable for the case of fewer workers, but also has good applicability to medium and large-scale problems.","PeriodicalId":11264,"journal":{"name":"DEStech Transactions on Engineering and Technology Research","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81644980","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}
Pub Date : 2020-10-06DOI: 10.12783/dtetr/mcaee2020/35047
Guanghui Chang, Yachao Zhang
Based on the analysis model, a fuzzy adaptive PID control strategy is proposed, which is based on the analysis model, which is based on the analysis model. In this paper, the hydraulic system model of the pitch valve is established by analyzing the flow and the motion equation of the pitch system. Rule table, in order to achieve the PID parameter online tuning. The simulation results show that the fuzzy adaptive PID control has better tracking performance and better anti-jamming robust performance.
{"title":"Research on Fuzzy Adaptive PID Control of Hydraulic System of Pitch–Propeller","authors":"Guanghui Chang, Yachao Zhang","doi":"10.12783/dtetr/mcaee2020/35047","DOIUrl":"https://doi.org/10.12783/dtetr/mcaee2020/35047","url":null,"abstract":"Based on the analysis model, a fuzzy adaptive PID control strategy is proposed, which is based on the analysis model, which is based on the analysis model. In this paper, the hydraulic system model of the pitch valve is established by analyzing the flow and the motion equation of the pitch system. Rule table, in order to achieve the PID parameter online tuning. The simulation results show that the fuzzy adaptive PID control has better tracking performance and better anti-jamming robust performance.","PeriodicalId":11264,"journal":{"name":"DEStech Transactions on Engineering and Technology Research","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78528029","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}
Pub Date : 2020-10-06DOI: 10.12783/dtetr/mcaee2020/35102
Rongrong Zhao, Lanting Liu
Based on the data of Guangdong furniture export from 2009 to 2019, this paper analyzes the amount, structure and market of Guangdong furniture export. It is found that Guangdong Province, as a major furniture export province in China, its export growth rate is slowing down, the export structure is unreasonable, and the export market is too concentrated. However, trade barriers, lack of famous furniture brands and imperfect policies are the main factors that restrict its export. Therefore, it is an inevitable choice for the sustainable development of furniture export in Guangdong Province to improve the environmental protection level of products, create famous brands and improve relevant policies.
{"title":"The Current Situation, Problems and Countermeasures of Furniture Export in Guangdong Province","authors":"Rongrong Zhao, Lanting Liu","doi":"10.12783/dtetr/mcaee2020/35102","DOIUrl":"https://doi.org/10.12783/dtetr/mcaee2020/35102","url":null,"abstract":"Based on the data of Guangdong furniture export from 2009 to 2019, this paper analyzes the amount, structure and market of Guangdong furniture export. It is found that Guangdong Province, as a major furniture export province in China, its export growth rate is slowing down, the export structure is unreasonable, and the export market is too concentrated. However, trade barriers, lack of famous furniture brands and imperfect policies are the main factors that restrict its export. Therefore, it is an inevitable choice for the sustainable development of furniture export in Guangdong Province to improve the environmental protection level of products, create famous brands and improve relevant policies.","PeriodicalId":11264,"journal":{"name":"DEStech Transactions on Engineering and Technology Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87339026","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}
Pub Date : 2020-10-06DOI: 10.12783/dtetr/mcaee2020/35044
Rui Guo, Yongjun Peng, Anping Wan, Lihua Wu, Ningdong You
In order to reduce the high costs of Communication Equipment operation and maintenance management, a novel residual life prediction method for Communication Equipment based on multi- environmental time similarity (METS) theory was proposed to make scientific and reasonable cost maintenance strategy of Communication Equipment. This method has introduced a reference Communication Equipment which has similar operational environment and type of the object Communication Equipment to obtain similarity coefficient (running hours and start/stop cycles) of the reference unit life evaluation parameters under actual operation conditions and benchmark operation conditions by using experience operational data. Based on the METS theory, the object unit factored running hours and start/stop cycles under benchmark operative conditions were obtained through calculating its actual running hours and start/stop cycles under actual operational conditions. And then the object unit residual life was predicted by comparing with maximum maintenance interval. Finally, a factory Communication Equipment HGP component residual life prediction is provided as the example to verify the scientific validity and feasibility of the prediction method.
{"title":"Communication Equipment Residual Life Prediction Method Based on Multi-environmental Time Similarity Theory","authors":"Rui Guo, Yongjun Peng, Anping Wan, Lihua Wu, Ningdong You","doi":"10.12783/dtetr/mcaee2020/35044","DOIUrl":"https://doi.org/10.12783/dtetr/mcaee2020/35044","url":null,"abstract":"In order to reduce the high costs of Communication Equipment operation and maintenance management, a novel residual life prediction method for Communication Equipment based on multi- environmental time similarity (METS) theory was proposed to make scientific and reasonable cost maintenance strategy of Communication Equipment. This method has introduced a reference Communication Equipment which has similar operational environment and type of the object Communication Equipment to obtain similarity coefficient (running hours and start/stop cycles) of the reference unit life evaluation parameters under actual operation conditions and benchmark operation conditions by using experience operational data. Based on the METS theory, the object unit factored running hours and start/stop cycles under benchmark operative conditions were obtained through calculating its actual running hours and start/stop cycles under actual operational conditions. And then the object unit residual life was predicted by comparing with maximum maintenance interval. Finally, a factory Communication Equipment HGP component residual life prediction is provided as the example to verify the scientific validity and feasibility of the prediction method.","PeriodicalId":11264,"journal":{"name":"DEStech Transactions on Engineering and Technology Research","volume":"29 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87821238","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}
Pub Date : 2020-10-06DOI: 10.12783/dtetr/mcaee2020/35023
Kai Xing, Aiping Li, Rong Jiang
Abstract. Cyberspace has been constantly threatened by attacks since its birth. With the development of high-tech and artificial intelligence, intelligent and efficient attack methods have emerged endlessly, and technological methods have been constantly renovated. In particular, Advanced Persistent Threat (APT) attacks are intensifying. How to effectively prevent this attack method has become the focus. With the advantages of machine learning, the thinking and technology of detection have made great progress. This article mainly discusses several innovative methods for detecting APT attacks based on machine learning, and looks forward to the future development direction.
{"title":"An Overview of Advanced Persistent Threat Detection Based on Machine Learning","authors":"Kai Xing, Aiping Li, Rong Jiang","doi":"10.12783/dtetr/mcaee2020/35023","DOIUrl":"https://doi.org/10.12783/dtetr/mcaee2020/35023","url":null,"abstract":"Abstract. Cyberspace has been constantly threatened by attacks since its birth. With the development of high-tech and artificial intelligence, intelligent and efficient attack methods have emerged endlessly, and technological methods have been constantly renovated. In particular, Advanced Persistent Threat (APT) attacks are intensifying. How to effectively prevent this attack method has become the focus. With the advantages of machine learning, the thinking and technology of detection have made great progress. This article mainly discusses several innovative methods for detecting APT attacks based on machine learning, and looks forward to the future development direction.","PeriodicalId":11264,"journal":{"name":"DEStech Transactions on Engineering and Technology Research","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79310892","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}
Pub Date : 2020-10-06DOI: 10.12783/dtetr/mcaee2020/35107
Huijian Zhang, Jun Jiang, Junfeng Wang
Based on the statistical data of 18 cities or counties in Hainan from 2011 to 2018, this research comprehensive utilize agricultural production comparative advantage and environmental comparative advantage to build a comprehensive comparative advantage system, guide the optimization of Hainan's agricultural industry layout. The result show that the comprehensive comparative advantages and environmental bearing capacity of Sanya, Qionghai, Wanning, Baoting and Qiong Zhong are bigger than 1, have significant advantage in agricultural production; And the comprehensive comparative advantage of Ding'an, Tunchang and Ledong is bigger than 1, but the environmental carrying capacity is between 0-1, so they are medium advantage zone of agricultural production; The comprehensive comparative advantages and environmental carrying capacity of Haikou, Wenchang, lin'gao, Danzhou, Dongfang, Lingshui and Changjiang are all between 0-1, are disadvantaged area of agricultural production. According to the evaluation results of comprehensive comparative advantagesw, the following optimization paths are proposed, firstly, it is proposed to improve the significant advantages zone, and limit the scale of low efficiency and high consumption of agricultural products in medium advantages zone, and adjust the industrial structure and layout of the disadvantaged zone. Secondly it is proposed to promote the production mode of comprehensive development of agriculture, forestry, animal husbandry and fishery. Thirdly, it is considered of multi compliance of the impact of planting, animal husbandry and fishery layout on the environment. Then the pollutant discharge in agri-production should be strengthening controlled. Finally, this research puts forward some policy suggestions to support the optimization of regional layout of agricultural industry.
{"title":"Optimization Research of Regional Distribution of Hainan Agricultural Industry Based on Comprehensive Comparative Advantages","authors":"Huijian Zhang, Jun Jiang, Junfeng Wang","doi":"10.12783/dtetr/mcaee2020/35107","DOIUrl":"https://doi.org/10.12783/dtetr/mcaee2020/35107","url":null,"abstract":"Based on the statistical data of 18 cities or counties in Hainan from 2011 to 2018, this research comprehensive utilize agricultural production comparative advantage and environmental comparative advantage to build a comprehensive comparative advantage system, guide the optimization of Hainan's agricultural industry layout. The result show that the comprehensive comparative advantages and environmental bearing capacity of Sanya, Qionghai, Wanning, Baoting and Qiong Zhong are bigger than 1, have significant advantage in agricultural production; And the comprehensive comparative advantage of Ding'an, Tunchang and Ledong is bigger than 1, but the environmental carrying capacity is between 0-1, so they are medium advantage zone of agricultural production; The comprehensive comparative advantages and environmental carrying capacity of Haikou, Wenchang, lin'gao, Danzhou, Dongfang, Lingshui and Changjiang are all between 0-1, are disadvantaged area of agricultural production. According to the evaluation results of comprehensive comparative advantagesw, the following optimization paths are proposed, firstly, it is proposed to improve the significant advantages zone, and limit the scale of low efficiency and high consumption of agricultural products in medium advantages zone, and adjust the industrial structure and layout of the disadvantaged zone. Secondly it is proposed to promote the production mode of comprehensive development of agriculture, forestry, animal husbandry and fishery. Thirdly, it is considered of multi compliance of the impact of planting, animal husbandry and fishery layout on the environment. Then the pollutant discharge in agri-production should be strengthening controlled. Finally, this research puts forward some policy suggestions to support the optimization of regional layout of agricultural industry.","PeriodicalId":11264,"journal":{"name":"DEStech Transactions on Engineering and Technology Research","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83719904","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}
Pub Date : 2020-10-06DOI: 10.12783/dtetr/mcaee2020/35070
Liu Bo, Haoting Wu, Dong Siqing, Pingjun Wu, Zhao Fengtao, Lei Zhao, Jiang Ming
The application of setting-out UAV can enhance automation level of guideline erection operation, simplify erection flow, thus enhancing erection speed of power transmission line, reducing construction cost of erection operation, reliving labor strength of erection workers, and reducing working danger of erection workers. Especially in construction occasions with complicated terrain and severe environment where the artificial erection is difficult to be conducted, complete erection with UAV automatically can enhance construction efficiency greatly [1]. In this thesis, we mainly research the effect of utilizing RTK differential technology to enhancement of flight stability of UAV.
{"title":"Research on Reconstruction and Test for Flight Stability of Setting-out UAV","authors":"Liu Bo, Haoting Wu, Dong Siqing, Pingjun Wu, Zhao Fengtao, Lei Zhao, Jiang Ming","doi":"10.12783/dtetr/mcaee2020/35070","DOIUrl":"https://doi.org/10.12783/dtetr/mcaee2020/35070","url":null,"abstract":"The application of setting-out UAV can enhance automation level of guideline erection operation, simplify erection flow, thus enhancing erection speed of power transmission line, reducing construction cost of erection operation, reliving labor strength of erection workers, and reducing working danger of erection workers. Especially in construction occasions with complicated terrain and severe environment where the artificial erection is difficult to be conducted, complete erection with UAV automatically can enhance construction efficiency greatly [1]. In this thesis, we mainly research the effect of utilizing RTK differential technology to enhancement of flight stability of UAV.","PeriodicalId":11264,"journal":{"name":"DEStech Transactions on Engineering and Technology Research","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84390629","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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