首页 > 最新文献

Engineering Applications of Computational Fluid Mechanics最新文献

英文 中文
A novel conceptual design approach for autonomous underwater helicopter based on multidisciplinary collaborative optimization 基于多学科协作优化的新型自主水下直升机概念设计方法
IF 6.1 1区 工程技术 Q1 ENGINEERING, MECHANICAL Pub Date : 2024-03-11 DOI: 10.1080/19942060.2024.2325494
Yuan-Jie Chen, Haocai Huang
Autonomous underwater helicopters (AUHs) are complex electromechanical systems consisting of multiple interconnected sub-disciplines, posing a significant challenge for traditional sequential desig...
自主式水下直升机(AUHs)是一种复杂的机电系统,由多个相互关联的子学科组成,对传统的顺序设计方法提出了巨大挑战。
{"title":"A novel conceptual design approach for autonomous underwater helicopter based on multidisciplinary collaborative optimization","authors":"Yuan-Jie Chen, Haocai Huang","doi":"10.1080/19942060.2024.2325494","DOIUrl":"https://doi.org/10.1080/19942060.2024.2325494","url":null,"abstract":"Autonomous underwater helicopters (AUHs) are complex electromechanical systems consisting of multiple interconnected sub-disciplines, posing a significant challenge for traditional sequential desig...","PeriodicalId":50524,"journal":{"name":"Engineering Applications of Computational Fluid Mechanics","volume":"26 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140096906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical simulation investigation of the mechanism of lacquer curtain formation in curtain coating 帷幕涂料中漆幕形成机理的数值模拟研究
IF 6.1 1区 工程技术 Q1 ENGINEERING, MECHANICAL Pub Date : 2024-03-06 DOI: 10.1080/19942060.2024.2323127
Jie-min Zhan, Kai Lin, Yi-hua Li, Wen-qing Hu
To study the key factors on integrated curtain formation and breakup in curtain coating production process, we used the numerical simulation method to analyze the various stages of the curtains fro...
为了研究帷幕涂层生产过程中综合帷幕形成和破裂的关键因素,我们采用数值模拟方法分析了帷幕涂层生产过程中帷幕形成和破裂的各个阶段。
{"title":"Numerical simulation investigation of the mechanism of lacquer curtain formation in curtain coating","authors":"Jie-min Zhan, Kai Lin, Yi-hua Li, Wen-qing Hu","doi":"10.1080/19942060.2024.2323127","DOIUrl":"https://doi.org/10.1080/19942060.2024.2323127","url":null,"abstract":"To study the key factors on integrated curtain formation and breakup in curtain coating production process, we used the numerical simulation method to analyze the various stages of the curtains fro...","PeriodicalId":50524,"journal":{"name":"Engineering Applications of Computational Fluid Mechanics","volume":"1 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140064168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Two-phase flow investigation of sewage pumps with different tip clearance via computational fluid dynamics and multi-factor ANOVA 通过计算流体动力学和多因素方差分析研究具有不同顶端间隙的污水泵的两相流动情况
IF 6.1 1区 工程技术 Q1 ENGINEERING, MECHANICAL Pub Date : 2024-03-01 DOI: 10.1080/19942060.2024.2322514
Yang Yang, Hui Wang, Qixiang Hu, Leilei Ji, Zhaoming He, Weidong Shi, Xiangyu Song, Ling Zhou
Sewage pumps are widely utilized in various applications, including municipal wastewater treatment plants, industrial processes, and residential sewage systems. These pumps are specifically designe...
污水泵广泛应用于各种场合,包括城市污水处理厂、工业流程和住宅污水处理系统。这些泵是专门设计用于污水处理的。
{"title":"Two-phase flow investigation of sewage pumps with different tip clearance via computational fluid dynamics and multi-factor ANOVA","authors":"Yang Yang, Hui Wang, Qixiang Hu, Leilei Ji, Zhaoming He, Weidong Shi, Xiangyu Song, Ling Zhou","doi":"10.1080/19942060.2024.2322514","DOIUrl":"https://doi.org/10.1080/19942060.2024.2322514","url":null,"abstract":"Sewage pumps are widely utilized in various applications, including municipal wastewater treatment plants, industrial processes, and residential sewage systems. These pumps are specifically designe...","PeriodicalId":50524,"journal":{"name":"Engineering Applications of Computational Fluid Mechanics","volume":"32 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140015518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Forecasting of energy-related carbon dioxide emission using ANN combined with hybrid metaheuristic optimization algorithms 使用ANN结合混合元启发式优化算法预测与能源相关的二氧化碳排放量
IF 6.1 1区 工程技术 Q1 ENGINEERING, MECHANICAL Pub Date : 2024-02-29 DOI: 10.1080/19942060.2024.2322509
Hossein Moayedi, Azfarizal Mukhtar, Nidhal Ben Khedher, Isam Elbadawi, Mouldi Ben Amara, Quynh TT, Nima Khalilpoor
Energy-related CO2 emissions are one of the biggest concerns facing urban design today, increasing rapidly as cities grow. This study uses as inputs the GDP of the G8 nations (from 1990 to 2016) de...
与能源相关的二氧化碳排放是当今城市设计面临的最大问题之一,并随着城市的发展而迅速增加。本研究以 G8 国家(1990-2016 年)的 GDP 为输入数据,对城市设计中与能源相关的二氧化碳排放量进行了分析。
{"title":"Forecasting of energy-related carbon dioxide emission using ANN combined with hybrid metaheuristic optimization algorithms","authors":"Hossein Moayedi, Azfarizal Mukhtar, Nidhal Ben Khedher, Isam Elbadawi, Mouldi Ben Amara, Quynh TT, Nima Khalilpoor","doi":"10.1080/19942060.2024.2322509","DOIUrl":"https://doi.org/10.1080/19942060.2024.2322509","url":null,"abstract":"Energy-related CO2 emissions are one of the biggest concerns facing urban design today, increasing rapidly as cities grow. This study uses as inputs the GDP of the G8 nations (from 1990 to 2016) de...","PeriodicalId":50524,"journal":{"name":"Engineering Applications of Computational Fluid Mechanics","volume":"83 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139994114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Swash-flow induced forces on human body standing on a smooth and impermeable slope: A numerical study with experimental validations 站在光滑不透水斜坡上的人体所受的斜流诱导力:数值研究与实验验证
IF 6.1 1区 工程技术 Q1 ENGINEERING, MECHANICAL Pub Date : 2024-02-22 DOI: 10.1080/19942060.2024.2319768
Deping Cao, Zaibin Lin, Jing Yuan, Weikai Tan, Hao Chen
Swash flow poses a significant hazard to pedestrians standing on the slope of the seawall. Unlike the forces of overtopping flow or open channel flow on the human body, which have been studied befo...
斜流对站在海堤斜坡上的行人造成了极大的危险。与之前已经研究过的倾覆流或明渠流对人体的作用力不同,斜流对站在海堤斜坡上的行人造成了极大的危险。
{"title":"Swash-flow induced forces on human body standing on a smooth and impermeable slope: A numerical study with experimental validations","authors":"Deping Cao, Zaibin Lin, Jing Yuan, Weikai Tan, Hao Chen","doi":"10.1080/19942060.2024.2319768","DOIUrl":"https://doi.org/10.1080/19942060.2024.2319768","url":null,"abstract":"Swash flow poses a significant hazard to pedestrians standing on the slope of the seawall. Unlike the forces of overtopping flow or open channel flow on the human body, which have been studied befo...","PeriodicalId":50524,"journal":{"name":"Engineering Applications of Computational Fluid Mechanics","volume":"275 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139937756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance prediction and optimization of hydrogenation feed pump based on particle swarm optimization – least squares support vector regression surrogate model 基于粒子群优化的加氢进料泵性能预测与优化--最小二乘支持向量回归代用模型
IF 6.1 1区 工程技术 Q1 ENGINEERING, MECHANICAL Pub Date : 2024-02-22 DOI: 10.1080/19942060.2024.2315985
Yanpi Lin, Liang Li, Shunyin Yang, Xiaoguang Chen, Xiaojun Li, Zuchao Zhu
Due to high power consumption and low energy efficiency of the hydrogenation feed multistage pump, conducting structural optimization design and reducing energy losses for this pump is necessary. I...
由于加氢进料多级泵功耗高、能效低,因此有必要对该泵进行结构优化设计并减少能量损失。I...
{"title":"Performance prediction and optimization of hydrogenation feed pump based on particle swarm optimization – least squares support vector regression surrogate model","authors":"Yanpi Lin, Liang Li, Shunyin Yang, Xiaoguang Chen, Xiaojun Li, Zuchao Zhu","doi":"10.1080/19942060.2024.2315985","DOIUrl":"https://doi.org/10.1080/19942060.2024.2315985","url":null,"abstract":"Due to high power consumption and low energy efficiency of the hydrogenation feed multistage pump, conducting structural optimization design and reducing energy losses for this pump is necessary. I...","PeriodicalId":50524,"journal":{"name":"Engineering Applications of Computational Fluid Mechanics","volume":"6 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139937684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Propulsion curve analysis and optimisation of biomimetic pectoral fin with three degree of freedom based on multi-layer perception 基于多层感知的三自由度仿生胸鳍推进曲线分析与优化
IF 6.1 1区 工程技术 Q1 ENGINEERING, MECHANICAL Pub Date : 2024-02-15 DOI: 10.1080/19942060.2024.2316810
Zonggang Li, Bin Li, Guangqing Xia, Huifeng Kang
This paper aims to improve the swimming efficiency of biomimetic robotic fish by optimising its propulsion curve with three degree of freedom (DOF), in which the key is to minimise the resistance d...
本文旨在通过优化具有三个自由度(DOF)的生物仿生机器鱼的推进曲线来提高其游动效率,其中关键是最大限度地减少阻力。
{"title":"Propulsion curve analysis and optimisation of biomimetic pectoral fin with three degree of freedom based on multi-layer perception","authors":"Zonggang Li, Bin Li, Guangqing Xia, Huifeng Kang","doi":"10.1080/19942060.2024.2316810","DOIUrl":"https://doi.org/10.1080/19942060.2024.2316810","url":null,"abstract":"This paper aims to improve the swimming efficiency of biomimetic robotic fish by optimising its propulsion curve with three degree of freedom (DOF), in which the key is to minimise the resistance d...","PeriodicalId":50524,"journal":{"name":"Engineering Applications of Computational Fluid Mechanics","volume":"19 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139745221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Oscillatory flow driven microdroplet breakup dynamics and microparticle formation in LMPA-water two phase flow system LMPA-水两相流动系统中振荡流动驱动的微液滴破裂动力学和微颗粒形成
IF 6.1 1区 工程技术 Q1 ENGINEERING, MECHANICAL Pub Date : 2024-02-15 DOI: 10.1080/19942060.2024.2315972
Yanhong Guo, Yong Liu, Tuo Hou, Xinyu Zhang, Jiayun Gao, Jun He, Chengbo Wang, Jing Wang, Qingsen Zhao, Yue Chan, Yong Ren
This study presents a mathematical modeling and numerical investigation of oscillatory flow induced microdroplet breakup in low melting point alloy (LMPA)-in-water two-phase flow system in a microc...
本研究通过数学建模和数值计算,探讨了低熔点合金(LMPA)水包水两相流体系在微裂缝中的振荡流动诱发的微滴破裂。
{"title":"Oscillatory flow driven microdroplet breakup dynamics and microparticle formation in LMPA-water two phase flow system","authors":"Yanhong Guo, Yong Liu, Tuo Hou, Xinyu Zhang, Jiayun Gao, Jun He, Chengbo Wang, Jing Wang, Qingsen Zhao, Yue Chan, Yong Ren","doi":"10.1080/19942060.2024.2315972","DOIUrl":"https://doi.org/10.1080/19942060.2024.2315972","url":null,"abstract":"This study presents a mathematical modeling and numerical investigation of oscillatory flow induced microdroplet breakup in low melting point alloy (LMPA)-in-water two-phase flow system in a microc...","PeriodicalId":50524,"journal":{"name":"Engineering Applications of Computational Fluid Mechanics","volume":"67 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139739526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluating shallow mixing layer in partially-distributed canopy flows using DA-LES: bed friction, water shallowness and canopy denseness 利用 DA-LES 评估部分分布式冠层流中的浅层混合层:床面摩擦力、水流浅度和冠层密度
IF 6.1 1区 工程技术 Q1 ENGINEERING, MECHANICAL Pub Date : 2024-02-05 DOI: 10.1080/19942060.2023.2298075
Zi-Rui Wang, Si-Jin Zhang, Yu-Xuan Jiang, Zhi-Dong Yao, Xu-Feng Yan
Shallow mixing layers developed in partially-distributed canopy flows (PCFs) are important for water conveyance, sediment transport and solute dispersion. In this paper, we address the response of ...
在部分分布冠层流(PCF)中形成的浅层混合层对水的输送、沉积物的迁移和溶质的扩散非常重要。在本文中,我们将讨论...
{"title":"Evaluating shallow mixing layer in partially-distributed canopy flows using DA-LES: bed friction, water shallowness and canopy denseness","authors":"Zi-Rui Wang, Si-Jin Zhang, Yu-Xuan Jiang, Zhi-Dong Yao, Xu-Feng Yan","doi":"10.1080/19942060.2023.2298075","DOIUrl":"https://doi.org/10.1080/19942060.2023.2298075","url":null,"abstract":"Shallow mixing layers developed in partially-distributed canopy flows (PCFs) are important for water conveyance, sediment transport and solute dispersion. In this paper, we address the response of ...","PeriodicalId":50524,"journal":{"name":"Engineering Applications of Computational Fluid Mechanics","volume":"82 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139700708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Energy management of a concentrated photovoltaic−thermal unit utilizing nanofluid jet impingement in existence of thermoelectric module 利用存在热电模块的纳米流体射流冲击对聚光光伏热发电装置进行能源管理
IF 6.1 1区 工程技术 Q1 ENGINEERING, MECHANICAL Pub Date : 2024-02-02 DOI: 10.1080/19942060.2023.2297044
M. Sheikholeslami, Z. Khalili
To generate a concentrated photovoltaic–thermal (CPVT) unit system, linear Fresnel concentrators have been attached to a PV unit and a thermoelectric generator (TEG) has been combined in this work ...
为了产生聚光光伏热发电(CPVT)单元系统,本研究将线性菲涅尔聚光器连接到光伏单元上,并将热电发生器(TEG)结合在一起。
{"title":"Energy management of a concentrated photovoltaic−thermal unit utilizing nanofluid jet impingement in existence of thermoelectric module","authors":"M. Sheikholeslami, Z. Khalili","doi":"10.1080/19942060.2023.2297044","DOIUrl":"https://doi.org/10.1080/19942060.2023.2297044","url":null,"abstract":"To generate a concentrated photovoltaic–thermal (CPVT) unit system, linear Fresnel concentrators have been attached to a PV unit and a thermoelectric generator (TEG) has been combined in this work ...","PeriodicalId":50524,"journal":{"name":"Engineering Applications of Computational Fluid Mechanics","volume":"29 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139661037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Engineering Applications of Computational Fluid Mechanics
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1