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Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering最新文献

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Optimal excess of loss reinsurance-barrier dividend strategies with investment 最优超额损失再保险-障碍股利投资策略
Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering Pub Date : 2022-11-01 DOI: 10.3724/sp.j.1249.2022.06719
Zongqi Sun, Peng Yang, Jing Wu, Yang Yang
{"title":"Optimal excess of loss reinsurance-barrier dividend strategies with investment","authors":"Zongqi Sun, Peng Yang, Jing Wu, Yang Yang","doi":"10.3724/sp.j.1249.2022.06719","DOIUrl":"https://doi.org/10.3724/sp.j.1249.2022.06719","url":null,"abstract":": The optimal barrier dividend problem under excess of loss reinsurance strategy has rarely been studied so far. We combine the risk factors such as market friction and terminal residual value with risk investment and risk control strategy, and study the resulting optimal investment - excess of loss reinsurance - barrier dividend problem. Based on the dynamic programming principle, we establish the Hamilton - Jacobi - Bellman equation, and obtain the explicit solutions for the optimal investment - excess of loss reinsurance strategy. The optimal dividend function is solved by the differential - integral method. The existence and uniqueness of the optimal dividend boundary is proved.","PeriodicalId":35396,"journal":{"name":"Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41633250","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}
引用次数: 0
Drilling fluid for stabilizing the wellbore in compound-salt formation based on multiple-synergism-method 基于多重协同法的复合盐层井筒稳定钻井液
Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering Pub Date : 2022-11-01 DOI: 10.3724/sp.j.1249.2022.06668
Xin Zhao, Haoran Sun, Z. Qiu, Weian Huang, Jiafang Xu, H. Zhong
{"title":"Drilling fluid for stabilizing the wellbore in compound-salt formation based on multiple-synergism-method","authors":"Xin Zhao, Haoran Sun, Z. Qiu, Weian Huang, Jiafang Xu, H. Zhong","doi":"10.3724/sp.j.1249.2022.06668","DOIUrl":"https://doi.org/10.3724/sp.j.1249.2022.06668","url":null,"abstract":"","PeriodicalId":35396,"journal":{"name":"Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42317496","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}
引用次数: 0
Improved sine cosine algorithm for large-scale optimization problems 大规模优化问题的改进正弦余弦算法
Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering Pub Date : 2022-11-01 DOI: 10.3724/sp.j.1249.2022.06684
Chao Zhang, Yezhou Yang
{"title":"Improved sine cosine algorithm for large-scale optimization problems","authors":"Chao Zhang, Yezhou Yang","doi":"10.3724/sp.j.1249.2022.06684","DOIUrl":"https://doi.org/10.3724/sp.j.1249.2022.06684","url":null,"abstract":"体局部开发和逃离局部极值的能力;采用基于空间距离的非线性参数调整方法,平衡算法的局部开发和全 局搜索,提高了算法的收敛速度.在14个经典测试函数上,维度分别为100、1 000和 5 000维时,与SCA、 花授粉算法(flower pollination algorithm,FPA)、粒子群优化(particle swarm optimization,PSO)算法、麻雀搜 索算法(sparrow search algorithm,SSA)和鲸鱼优化算法(whale optimization algorithm,WOA)5种群体智能算法 进行仿真对比实验.结果表明,SCAL算法在收敛精度、收敛速度和鲁棒性上较 5种群体智能算法优势明 显.与解决大规模优化问题的改进狼群算法(improved wolf pack algorithm,IWPA)、改进花授粉算法 (improved flower pollination algorithm,IFPA)、鲸鱼算法的两种改进版本 IWOA(improved whale optimization algorithm)和MWOA(modified whale optimization algorithm)进行比较,发现SCAL的整体寻优结果优于对比算","PeriodicalId":35396,"journal":{"name":"Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42936867","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}
引用次数: 1
A content-location-aware personalized POI recommendation model 一种内容位置感知的个性化POI推荐模型
Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering Pub Date : 2022-11-01 DOI: 10.3724/sp.j.1249.2022.06693
Bi Liang, Dujin Liu, Lun Xiong, Xiaohong Xu
{"title":"A content-location-aware personalized POI recommendation model","authors":"Bi Liang, Dujin Liu, Lun Xiong, Xiaohong Xu","doi":"10.3724/sp.j.1249.2022.06693","DOIUrl":"https://doi.org/10.3724/sp.j.1249.2022.06693","url":null,"abstract":"","PeriodicalId":35396,"journal":{"name":"Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47014056","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}
引用次数: 0
Classification of retinopathy of prematurity based on mixed attention 基于混合注意的早产儿视网膜病变分类
Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering Pub Date : 2022-11-01 DOI: 10.3724/sp.j.1249.2022.06701
Shaobin CHEN, Baiying Lei, Hai Xie, Guoming Zhang, Yueshanyi Du, Xinyu Zhao
{"title":"Classification of retinopathy of prematurity based on mixed attention","authors":"Shaobin CHEN, Baiying Lei, Hai Xie, Guoming Zhang, Yueshanyi Du, Xinyu Zhao","doi":"10.3724/sp.j.1249.2022.06701","DOIUrl":"https://doi.org/10.3724/sp.j.1249.2022.06701","url":null,"abstract":"","PeriodicalId":35396,"journal":{"name":"Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43479846","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}
引用次数: 0
Influence of local thermal non-equilibrium on enhanced geothermal system 局部热不平衡对增强型地热系统的影响
Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering Pub Date : 2022-11-01 DOI: 10.3724/sp.j.1249.2022.06649
Linsong Cheng, Junjie Shi, R. Cao, Chenxu Yang, Xulin Du
{"title":"Influence of local thermal non-equilibrium on enhanced geothermal system","authors":"Linsong Cheng, Junjie Shi, R. Cao, Chenxu Yang, Xulin Du","doi":"10.3724/sp.j.1249.2022.06649","DOIUrl":"https://doi.org/10.3724/sp.j.1249.2022.06649","url":null,"abstract":"","PeriodicalId":35396,"journal":{"name":"Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45371279","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}
引用次数: 0
Influence of impact velocity on dynamic performance of reinforced concrete beams strengthened with CFRP 冲击速度对CFRP加固钢筋混凝土梁动力性能的影响
Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering Pub Date : 2022-11-01 DOI: 10.3724/sp.j.1249.2022.06622
Yafang Zhang, L. Duan, Juan Lu, Yongjie Huo
{"title":"Influence of impact velocity on dynamic performance of reinforced concrete beams strengthened with CFRP","authors":"Yafang Zhang, L. Duan, Juan Lu, Yongjie Huo","doi":"10.3724/sp.j.1249.2022.06622","DOIUrl":"https://doi.org/10.3724/sp.j.1249.2022.06622","url":null,"abstract":"Abstract: In order to study the impact resistance and dynamic damage rule of reinforced concrete (RC) beams strengthened with carbon fiber reinforced plastics (CFRP) under different impact velocities, four CFRP strengthened RC beams were tested by using a drop-hammer impact device. The analysis results of the failure pattern, crack propagation rule, dynamic time history response and energy dissipation of the strengthened beams show that with increase of the impact velocity, the width of the main bending crack in the mid-span of CFRP strengthened beam increases first and then decreases, and the width of the main oblique crack in the mid-span increases continuously. It can also be identified that overall crack distribution converges to the mid-span area. Furthermore, the peak impact force and the mid-span peak displacement are linearly dependent to the impact velocity. The energy dissipation capacity of strengthened beams increases nonlinearly with the increase of impact velocity. The greater the impact velocity is, the less the increase rate of the energy dissipation capacity of the strengthened beam is. In addition, four stages can be divided in the test based on development of mid-span displacement, which are linear growing, nonlinear growing, rebounding and stable stages, respectively. The study can provide reference for optimal design of RC beams strengthened with CFRP.","PeriodicalId":35396,"journal":{"name":"Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41504345","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}
引用次数: 0
Influence of different surface curing materials on pavement concrete properties 不同表面养护材料对路面混凝土性能的影响
Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering Pub Date : 2022-11-01 DOI: 10.3724/sp.j.1249.2022.06642
Tianlun Li, Yonggen Wu, Haoxiang Wu
{"title":"Influence of different surface curing materials on pavement concrete properties","authors":"Tianlun Li, Yonggen Wu, Haoxiang Wu","doi":"10.3724/sp.j.1249.2022.06642","DOIUrl":"https://doi.org/10.3724/sp.j.1249.2022.06642","url":null,"abstract":"摘 要:为研究硅酸乙酯、硅渗剂和纳米SiO2表面固化处理对机场道面混凝土性能的影响,分别对经 过3种表面固化材料处理后的混凝土的毛细吸水性、耐火蚀性、抗水渗透性、抗冻性和抗硫酸盐侵蚀性进 行测试,分析表面固化材料在机场道面的适用性 . 结果表明,硅渗剂的综合表现优异,处理后混凝土的渗 水高度降低率达到44. 2%,而且施工工艺成熟,最适合作为机场道面混凝土的表面固化材料;硅酸乙酯的 性能改善效果显著,处理后混凝土的 7 d吸水量降低 90%,经过 60 min火蚀后仍能达到 68. 1%,抗冻等级 由F125提高至F175,但混合溶液具有一定的易爆性,在机场道面混凝土上的应用还需要深入探究;纳米 SiO2的性能改善效果在3种表面固化材料中不够明显,不推荐应用于机场道面混凝土 . 研究结果可为机场 工程中表面固化材料的选择提供借鉴 . 关键词:建筑材料;混凝土;表面固化;硅酸乙酯;硅渗剂;纳米SiO2;机场道面 中图分类号:TU528. 58 文献标志码:A doi:10. 3724/SP. J. 1249. 2022. 06642","PeriodicalId":35396,"journal":{"name":"Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43065814","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}
引用次数: 0
Analysis on the pressure dynamic characteristics of slanted well in dual-porosity and dual-permeability reservoir 双孔双渗油藏斜井压力动态特性分析
Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering Pub Date : 2022-11-01 DOI: 10.3724/sp.j.1249.2022.06660
R. Nie, Ran Jia, Mingjin Cai, H. Li, Cong Lu, Lan Yang
{"title":"Analysis on the pressure dynamic characteristics of slanted well in dual-porosity and dual-permeability reservoir","authors":"R. Nie, Ran Jia, Mingjin Cai, H. Li, Cong Lu, Lan Yang","doi":"10.3724/sp.j.1249.2022.06660","DOIUrl":"https://doi.org/10.3724/sp.j.1249.2022.06660","url":null,"abstract":"","PeriodicalId":35396,"journal":{"name":"Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45454018","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}
引用次数: 1
Influence of coherent structure on turbulence characteristics of 0814 strong typhoon Hagupit 相干结构对0814强台风黑格比湍流特征的影响
Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering Pub Date : 2022-11-01 DOI: 10.3724/sp.j.1249.2022.06629
Lixiao Li, Yuqing Huang, Shangxing Chen, Xigui Huang, Yiqing Xiao, Xianchuan Chen
{"title":"Influence of coherent structure on turbulence characteristics of 0814 strong typhoon Hagupit","authors":"Lixiao Li, Yuqing Huang, Shangxing Chen, Xigui Huang, Yiqing Xiao, Xianchuan Chen","doi":"10.3724/sp.j.1249.2022.06629","DOIUrl":"https://doi.org/10.3724/sp.j.1249.2022.06629","url":null,"abstract":"","PeriodicalId":35396,"journal":{"name":"Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45884887","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}
引用次数: 0
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