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Design and evaluation of control strategies in urban drainage systems in Kunming city

Frontiers of Environmental Science & Engineering 2017年第4期11卷 105-112页

作者： Xin Dong senchen huang Siyu Zeng School of Environment Tsinghua University Beijing 100084 China

Real time control （RTC） of urban drainage systems （UDSs） is an important measure to reduce combined sewer overflow （CSO） and urban flooding, helping achieve the aims of ＂Sponge City＇. Application of RTC requires three main steps： strategy design, simulation-based evaluation and field test. But many of published RTC studies are system-specific, lacking discussions on how to design a strategy step by step. In addition, the existing studies are prone to use hydrologic model to evaluated strategics, but a more precise and dynamic insight into strategy performance is needed. To fill these knowledge gaps, based on a case UDS in Kunming city, a studio on RTC strategy design and Management Model （SWMM） - uncier four typical rainfall events characterized by different return periods （1-year or 0.5 year） and different spatial distributions （uniform or uneven）. The equal filling strategy outperformss other two strategies and it can achieve 10% more CSO reduction and 5% more flooding reduction relative to the no-tank case.

关键词： Urban drainage system Real time control Static strategy Constant strategy Equal filling strategy

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Dynamic process of trace boron non-equilibrium grain boundary segregation and the effect of cooling rate

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Journal of University of Science and Technology Beijing 2003年第3期10卷 30-34页

作者： PingWu XinlaiHe BingCao senchen MaterialScienceandEngineeringSchool UniversityofScienceandTechnologyBeijingBeijing100083China EditorialDepartmentofJ.Univ.Sci.Technol.Beijing Beijing100083China AppliedScienceSchool UniversityofScienceandTechnologyBeijingBeijing100083China

The dynamic process of non-equilibrium grain boundary segregation of traceboron in Fe-40 percent Ni alloy during cooling and the effect of cooling rate were investigated byboron tracking autoradiography technique. The results indicate that during cooling process, theamount of segregated boron on grain boundary firstly increases fast, then enters a comparativelyeven increasing stage and increases rapidly again at the third stage. The details of each stagevaried with cooling rate are explained. When the segregation develops to a certain degree, thesegregated boron atoms transform from solute status to precipitate status.

关键词： boron grain boundary non-equilibrium segregation dynamic process

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污水处理厂间互联互通指挥调度系统设计

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信息技术与信息化 2021年第12期 115-117页

作者：周莉芬徐玉良黄森辰王雪朱春伟昆山市水务局江苏昆山215335 清华苏州环境创新研究院江苏苏州215163

为解决污水处理能力空间不均衡性的问题,实现在超负荷污水厂和未饱和污水厂之间的有效调度,基于昆山的主要污水厂间互联互通工程,研究了互联互通的调度算法和调度指令流转过程。基于算法及流程设计,建设了一种污水厂间互联互通指挥调度... 详细信息

为解决污水处理能力空间不均衡性的问题,实现在超负荷污水厂和未饱和污水厂之间的有效调度,基于昆山的主要污水厂间互联互通工程,研究了互联互通的调度算法和调度指令流转过程。基于算法及流程设计,建设了一种污水厂间互联互通指挥调度系统,实现了调度综合指挥、互联互通工程查看、调度历史数据分析、调度指令流转功能。污水处理厂间互联互通指挥调度系统应用于本地互联互通指挥调度工作中,证明了研究成果的有效性,为指挥调度协同管理提供便捷的信息化工具。

关键词：互联互通调度决策调度指挥

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Impact of pre-operative transarterial embolization on the treatment of hepatocellular carcinoma with liver transplantation

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World Journal of Gastroenterology 2005年第10期11卷 1433-1438页

作者： Yu-FanCheng Tung-Lianghuang Tai-YiChen Yaw-senchen Chih-ChiWang Sheng-LungHsu LeoLeung-ChitTsang Po-LinSun King-WahChiu BrunoJawan Hock-LiewEng Chao-LongChen Departme_ntofDiagnosticRadiology KaohsiungMedicalCenterChangGungMemorialHospitalChangGungUniversityKaohsiung83305TaiwanChina DepartmentofSurgery KaohsiungMedicalCenterChangGungMemorialHospitalChangGungUniversityKaohsiung83305TaiwanChina DepartmentofHepatogastroenterology KaohsiungMedicalCenterChangGungMemorialHospitalChangGungUniversityKaohsiung83305TaiwanChina DepartmentofAnesthesiology KaohsiungMedicalCenterChangGungMemorialHospitalChangGungUniversityKaohsiung83305TalwanChina DepartmentofPathology KaohsiungMedicalCenterChangGungMemorialHospitalChangGungUniversityKaohsiung83305TalwanChina

AIM: To determine the effectiveness of pre-liver transplant (LT) transarterial embolization (TAE) in treating hepatocellular carcinoma (HCC) and the patient categories,which are likely to have a good outcome after ***: Twenty-nine patients with hepatitis-related cirrhosis and unresectable HCC after LT were studied over a 7-year period. The patients were divided into two groups: group A patients (19/29) received pre-LT TAE,whereas group B (10/29) underwent LT without prior *** to Milan criteria, group A patients were further subdivided into: group A1 (12/19) who met the criteria,and group A2 (7/19) who did not. Patient survivals were ***: In the explanted liver, CT images correlated well with pathological specimens showing that TAE induced massive tumor necrosis (＞85%) in 63.1% of patients in group A and all 7 patients in group A2 exhibited tumor downgrading that met Milan criteria. The overall 5-year actuarial survival rate was 80.6%. The TAE group had a better survival (84% at 5 years) than the non-TAE (75% at 4 years). The 3-year survival of group A2 (83%)was also higher than that of group A1 (79%). Tumor necrosis ＞85% was associated with excellent survival of 100% at 3 years, which was significantly better than the others who showed ＜85% tumor necrosis (57.1% at 3 years) or who did not have TAE (75% at 3 years).CONCLUSION: TAE is an effective treatment for HCC before LT. Excellent long-term survival was achieved in patients that did not fit Milan criteria. Our results broadened and redefined the selection policy for LT among patients with HCC. Meticulous pre-LT TAE helps in further reducing the rate of dropout from waiting lists and should be considered for patients with advanced HCC.

关键词： Hepatocellular carcinoma Liver transplantation Transarterial embolization

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基于微穿孔板的模型直升机舱内降噪研究

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振动．测试与诊断 2024年第5期44卷 871-878,1034页

作者：李程磊陆洋李森琛马锦超南京航空航天大学航空学院南京210016 武汉第二船舶设计研究所武汉430205

为验证微穿孔板吸声结构对直升机舱内噪声抑制的可行性和有效性,基于某轻型直升机模型机舱,开展了仿真与试验研究。首先,给出了适用于直升机舱内壁板的典型微穿孔板吸声结构方案;其次,建立了主减速器/机体声振耦合有限元模型,得到了微... 详细信息

为验证微穿孔板吸声结构对直升机舱内噪声抑制的可行性和有效性,基于某轻型直升机模型机舱,开展了仿真与试验研究。首先,给出了适用于直升机舱内壁板的典型微穿孔板吸声结构方案;其次,建立了主减速器/机体声振耦合有限元模型,得到了微穿孔板吸声结构的设计频率范围,并通过仿真验证了吸声效果;最后,搭建了安装有微穿孔板吸声结构的模型直升机机舱试验平台,开展了舱内噪声试验研究。结果表明,在机舱内安装微穿孔板吸声结构后,相比于未安装微穿孔板机舱,在800~1 000 Hz和1 200~2 000 Hz的频率范围内,均具有优良的舱内降噪效果,最大噪声衰减量超过20 dB。

关键词：直升机舱内降噪微穿孔板吸声结构声场分析

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