As is well known, the ocean covers approximately 70% of the Earth's surface area. Currently, human exploration of the ocean remains at less than 5%. Therefore, continuous exploration and development of marine resources are of great significance. In recent years, underwater wireless communication technology has rapidly developed. However, the harsh and constantly changing underwater environment has also posed many technical challenges.
{"title":"Communication in Underwater Wireless Sensor Networks","authors":"Xi Yang","doi":"10.54097/ije.v3i1.10651","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10651","url":null,"abstract":"As is well known, the ocean covers approximately 70% of the Earth's surface area. Currently, human exploration of the ocean remains at less than 5%. Therefore, continuous exploration and development of marine resources are of great significance. In recent years, underwater wireless communication technology has rapidly developed. However, the harsh and constantly changing underwater environment has also posed many technical challenges.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80966985","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}
Qiang Zeng, Shanshan Zhai, Jinshan Ma, Baiyun Yuan, Ke Lin
An online evaluation method for carbon performance of coal mines owned by the coal industry group based on combination of subjective and objective weights is proposed. Firstly, the evaluation method for carbon performance of coal mines owned by the coal industry group based on combination of subjective and objective weights is proposed: (1) The index system of carbon performance evaluation of coal mines owned by the coal industry group is constructed. (2) The objective weight of each index is obtained by entropy weight method. (3) The subjective weight of each index is obtained by Delphi method. (4) The comprehensive weight of each index is obtained by weighted average method. (5) The score of each index of each coal mine is obtained by linear interpolation method. (6) The comprehensive evaluation score of each coal mine is obtained by weighted average method. Secondly, taking Sql server as the database management system, ASP and C# as the development language, Dreamweaver and Visual Studio as the development platform, the system of carbon performance evaluation of coal mines owned by the coal industry group based on B/S structure is designed, and the system can realize online evaluation for carbon performance of coal mines. Finally, the application analysis results show that the method can ensure the objectivity of carbon performance evaluation of coal mines, greatly improve the efficiency of evaluation, and realize sharing and comparison of the evaluation results.
{"title":"Online Evaluation Method for Carbon Performance of Coal Mines Owned by the Coal Industry Group based on Combination of Subjective and Objective Weights","authors":"Qiang Zeng, Shanshan Zhai, Jinshan Ma, Baiyun Yuan, Ke Lin","doi":"10.54097/ije.v3i1.10529","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10529","url":null,"abstract":"An online evaluation method for carbon performance of coal mines owned by the coal industry group based on combination of subjective and objective weights is proposed. Firstly, the evaluation method for carbon performance of coal mines owned by the coal industry group based on combination of subjective and objective weights is proposed: (1) The index system of carbon performance evaluation of coal mines owned by the coal industry group is constructed. (2) The objective weight of each index is obtained by entropy weight method. (3) The subjective weight of each index is obtained by Delphi method. (4) The comprehensive weight of each index is obtained by weighted average method. (5) The score of each index of each coal mine is obtained by linear interpolation method. (6) The comprehensive evaluation score of each coal mine is obtained by weighted average method. Secondly, taking Sql server as the database management system, ASP and C# as the development language, Dreamweaver and Visual Studio as the development platform, the system of carbon performance evaluation of coal mines owned by the coal industry group based on B/S structure is designed, and the system can realize online evaluation for carbon performance of coal mines. Finally, the application analysis results show that the method can ensure the objectivity of carbon performance evaluation of coal mines, greatly improve the efficiency of evaluation, and realize sharing and comparison of the evaluation results.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73066955","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}
As one of the important technical means to increase production in oil and gas fields, the success or failure of fracturing construction and the effect of increasing production depend largely on the performance of the fracturing fluid used. This paper analyzes the fracturing fluid systems used in different coal seams at home and abroad, and lists the research progress of several fracturing fluid systems, which plays a guiding role in the selection of fracturing fluids in the development of oil seams.
{"title":"Classification and Research Progress of Fracturing Fluids","authors":"Mengye Zhang","doi":"10.54097/ije.v3i1.10659","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10659","url":null,"abstract":"As one of the important technical means to increase production in oil and gas fields, the success or failure of fracturing construction and the effect of increasing production depend largely on the performance of the fracturing fluid used. This paper analyzes the fracturing fluid systems used in different coal seams at home and abroad, and lists the research progress of several fracturing fluid systems, which plays a guiding role in the selection of fracturing fluids in the development of oil seams.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77657130","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}
As an important energy storage device, lithium-ion batteries are widely used in mobile electronic devices, electric vehicles and other fields. However, lithium-ion batteries generate a lot of heat during the charging and discharging process, and if effective thermal management is not carried out, it will lead to problems such as battery performance, reduced safety and even thermal runaway. Therefore, it is of great significance to study the thermal management strategy of lithium-ion batteries to improve battery performance and safety. This paper reviews the progress of thermal management research on lithium-ion batteries in recent years, analyzes the working principles of active cooling and passive cooling in detail, proposes the application methods of composite cooling, and looks forward to the future research should focus on the research and development of Multiphysics coupling simulation, intelligent thermal management system and new thermal management materials to achieve efficient thermal management of lithium-ion batteries and improve battery performance and safety.
{"title":"Research Progress and Prospect of Thermal Management of Automotive Lithium-ion Batteries","authors":"Hao Wu, Hua Ou","doi":"10.54097/ije.v3i1.10194","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10194","url":null,"abstract":"As an important energy storage device, lithium-ion batteries are widely used in mobile electronic devices, electric vehicles and other fields. However, lithium-ion batteries generate a lot of heat during the charging and discharging process, and if effective thermal management is not carried out, it will lead to problems such as battery performance, reduced safety and even thermal runaway. Therefore, it is of great significance to study the thermal management strategy of lithium-ion batteries to improve battery performance and safety. This paper reviews the progress of thermal management research on lithium-ion batteries in recent years, analyzes the working principles of active cooling and passive cooling in detail, proposes the application methods of composite cooling, and looks forward to the future research should focus on the research and development of Multiphysics coupling simulation, intelligent thermal management system and new thermal management materials to achieve efficient thermal management of lithium-ion batteries and improve battery performance and safety.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75564787","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}
Climate change has become one of the environmental problems that the scientific community, governments and the public pay attention to. Climate change may have a disastrous impact on the ecosystem and social economy. The impacts of climate change are multi-scale, all-round and multi-level, with both positive and negative impacts, but its negative impacts are more concerned. In recent years, with the gradual deterioration of global climate, it has a great impact on people's production and life, especially on hydrology and water resources. This paper introduces the current situation and progress of research on the impact of global climate change on hydrology and water resources at home and abroad, with emphasis on the current situation and progress of research at home.
{"title":"A Review of Research on the Impact of Global Climate Change on Hydrology and Water Resources","authors":"Yutong Sun, Liheng Xia","doi":"10.54097/ije.v3i1.10650","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10650","url":null,"abstract":"Climate change has become one of the environmental problems that the scientific community, governments and the public pay attention to. Climate change may have a disastrous impact on the ecosystem and social economy. The impacts of climate change are multi-scale, all-round and multi-level, with both positive and negative impacts, but its negative impacts are more concerned. In recent years, with the gradual deterioration of global climate, it has a great impact on people's production and life, especially on hydrology and water resources. This paper introduces the current situation and progress of research on the impact of global climate change on hydrology and water resources at home and abroad, with emphasis on the current situation and progress of research at home.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"164 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76109914","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}
Coal is an important energy source in our country, and coal mine dust seriously endangers production safety and occupational health and safety, so it is necessary to take effective technical measures to prevent and control the coal mine. According to the main technical ways of dust prevention and control, the technical measures such as improving dust-proof water, strengthening coal seam water injection, carrying out high-pressure external spray, dust control and dust extraction purification, air flow purification and individual protection are discussed respectively. Finally, the technical measures of dust prevention and control in the future are prospected, and several technologies and equipment should be emphasized to break through.
{"title":"Discussion on Dust Control Technology of Coal Mine Integrated Excavation Face","authors":"Youfan Deng","doi":"10.54097/ije.v3i1.10541","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10541","url":null,"abstract":"Coal is an important energy source in our country, and coal mine dust seriously endangers production safety and occupational health and safety, so it is necessary to take effective technical measures to prevent and control the coal mine. According to the main technical ways of dust prevention and control, the technical measures such as improving dust-proof water, strengthening coal seam water injection, carrying out high-pressure external spray, dust control and dust extraction purification, air flow purification and individual protection are discussed respectively. Finally, the technical measures of dust prevention and control in the future are prospected, and several technologies and equipment should be emphasized to break through.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82399463","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}
Chenxu Zhang, Yunfei Yang, Nan Yang, Song Gao, Ruizhong Wang
This paper mainly studies a multi-mode power generation device based on wave energy, which is mainly composed of power generation device, energy storage device, monitoring device, through the use of electromagnetic machinery, piezoelectric ceramics, hydraulic system in a variety of ways to generate electricity, and then the energy storage device stable output, is a kind of power generation system will be converted into electrical energy device, to achieve high efficiency conversion of wave energy. Each part of the project is innovative and practical, which has high application value in ocean power generation. Compared with some traditional power generation devices, this device uses a new type of energy, ocean wave energy, which is a pollution-free, clean and renewable new energy. Wave energy has high flow density, huge reserves and wide distribution, which is the main direction of the development of ocean energy utilization in the future. It will make positive contributions to Marine construction, economic development and infrastructure construction of countries and regions along the Belt and Road.
{"title":"Research on Multi -mode Power Generation Devices based on Wave Energy","authors":"Chenxu Zhang, Yunfei Yang, Nan Yang, Song Gao, Ruizhong Wang","doi":"10.54097/ije.v3i1.10133","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10133","url":null,"abstract":"This paper mainly studies a multi-mode power generation device based on wave energy, which is mainly composed of power generation device, energy storage device, monitoring device, through the use of electromagnetic machinery, piezoelectric ceramics, hydraulic system in a variety of ways to generate electricity, and then the energy storage device stable output, is a kind of power generation system will be converted into electrical energy device, to achieve high efficiency conversion of wave energy. Each part of the project is innovative and practical, which has high application value in ocean power generation. Compared with some traditional power generation devices, this device uses a new type of energy, ocean wave energy, which is a pollution-free, clean and renewable new energy. Wave energy has high flow density, huge reserves and wide distribution, which is the main direction of the development of ocean energy utilization in the future. It will make positive contributions to Marine construction, economic development and infrastructure construction of countries and regions along the Belt and Road.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"95 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77087095","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}
Building the interconnection mechanism of carbon emission trading market in the Guangdong-Hong Kong-Macao Greater Bay Area is an innovative exploration to promote regional carbon emission reduction. This paper analyzes the feasibility of interconnecting carbon emission trading markets in the Bay Area from the perspectives of the difference between industrial structure and energy consumption, as well as the compatibility of carbon emission trading systems, by analyzing the operation status of carbon trading markets in Guangdong, Shenzhen, Hong Kong, and Macao, and the experience of Guangdong and Shenzhen as the Chinese carbon trading pilot. Based on the above discussion, this paper puts forward three adjustment ideas for the interconnection of the Bay Area Carbon Market: providing legal support, unifying the access to industry sectors and its quantities, and establishing a complete carbon emission monitoring, reporting and verification institution.
{"title":"The Interconnection Ideas for Carbon Emissions Trading Market in Guangdong, Hong Kong, Macao and Greater Bay Area","authors":"Xi Chen","doi":"10.54097/ije.v3i1.10569","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10569","url":null,"abstract":"Building the interconnection mechanism of carbon emission trading market in the Guangdong-Hong Kong-Macao Greater Bay Area is an innovative exploration to promote regional carbon emission reduction. This paper analyzes the feasibility of interconnecting carbon emission trading markets in the Bay Area from the perspectives of the difference between industrial structure and energy consumption, as well as the compatibility of carbon emission trading systems, by analyzing the operation status of carbon trading markets in Guangdong, Shenzhen, Hong Kong, and Macao, and the experience of Guangdong and Shenzhen as the Chinese carbon trading pilot. Based on the above discussion, this paper puts forward three adjustment ideas for the interconnection of the Bay Area Carbon Market: providing legal support, unifying the access to industry sectors and its quantities, and establishing a complete carbon emission monitoring, reporting and verification institution.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78129403","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}
For broken, low overall strength roadways, anchor cable and anchor mesh support are generally adopted. Sometimes, grouted anchor cable support is both an economical and safe support method. Therefore, the design of grouting materials and ratios plays a stewardship role. Through the proportioning experiments of cement slurry and water glass, a suitable proportioning scheme and the determination of various parameters were identified. According to the analysis of the test results, a slurry mixture of ordinary silicate cement with a water-cement ratio of 0.8 and water glass with a volume ratio of 1:0.5 is more suitable for the site grouting conditions.
{"title":"Experimental Study on the Proportioning of Grouting Materials for Fractured Roadways","authors":"Peihao Li, Pan Chi, Jinhai Gao","doi":"10.54097/ije.v3i1.10131","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10131","url":null,"abstract":"For broken, low overall strength roadways, anchor cable and anchor mesh support are generally adopted. Sometimes, grouted anchor cable support is both an economical and safe support method. Therefore, the design of grouting materials and ratios plays a stewardship role. Through the proportioning experiments of cement slurry and water glass, a suitable proportioning scheme and the determination of various parameters were identified. According to the analysis of the test results, a slurry mixture of ordinary silicate cement with a water-cement ratio of 0.8 and water glass with a volume ratio of 1:0.5 is more suitable for the site grouting conditions.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84392371","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}
Taking the copper anode plate picking robot as the research object, the three-dimensional model of the robot was established by solidworks software, and combined with the actual working characteristics of the robot, the workbench software was used to analyze the static mechanics of the robot arm in the most dangerous working condition and the first six orders of modal analysis in three typical working conditions: picking position, putting position and starting position. The simulation results show that the strength and stiffness of the robot arm and the small arm are within the allowable range and meet the design requirements; it is necessary to avoid the low-order frequencies or to strengthen the rigidity of the overall structure of the robot.
{"title":"Statics Analysis and Modal Analysis of Copper Anode Plate Taking Robot","authors":"Meng Zhang","doi":"10.54097/ije.v3i1.10139","DOIUrl":"https://doi.org/10.54097/ije.v3i1.10139","url":null,"abstract":"Taking the copper anode plate picking robot as the research object, the three-dimensional model of the robot was established by solidworks software, and combined with the actual working characteristics of the robot, the workbench software was used to analyze the static mechanics of the robot arm in the most dangerous working condition and the first six orders of modal analysis in three typical working conditions: picking position, putting position and starting position. The simulation results show that the strength and stiffness of the robot arm and the small arm are within the allowable range and meet the design requirements; it is necessary to avoid the low-order frequencies or to strengthen the rigidity of the overall structure of the robot.","PeriodicalId":14093,"journal":{"name":"International journal of energy science","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87824520","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}