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Urban Flood Mitigation Strategies with Coupled Gray–Green Measures: A Case Study in Guangzhou City, China

International Journal of Disaster Risk Science 2024年第3期15卷 467-479页

作者： jiayue Li Jiajun Zeng Guoru Huang Wenjie chen School of Civil Engineering and Transportation South China University of Technology School of Architecture South China University of Technology State Key Laboratory of Subtropical Building and Urban Science South China University of Technology College of Water Conservancy and Civil Engineering South China Agricultural University

The integration of gray and green infrastructure has proven to be a feasible approach for managing stormwater in established urban areas. However, evaluating the specific contributions of such coupled strategies is challenging. This study introduced a novel integrated hydrological-hydrodynamic model that takes into account the layout of low-impact development(LID)facilities along with pipeline alignment and rehabilitation. Reliable results from modeling were used to assess the individual contribution of LID and improved drainage facilities to urban flooding mitigation. We selected a natural island in Guangzhou City, China, as the study site. The results indicate that combining three LID measures, namely green roofs, sunken green spaces, and permeable pavements, can reduce total runoff by 41.7% to 25.89% for rainfall recurrence periods ranging from 1year to 100 years, and decrease the volume of nodal overflow by nearly half during rainfall events of less than 10-year return period. By integrating LID measures with the upgraded gray infrastructure, the regional pipeline overloading condition is substantially alleviated, resulting in a significant improvement in pipeline system resilience. For urban flooding control, it is recommended to integrate sufficient green space and avoid pipe-laying structural issues during urban planning and construction. The findings may assist stakeholders in developing strategies to best utilize gray and green infrastructure in mitigating the negative eff ects of urban flooding.

关键词： Coupled hydrodynamic model Gray–green approach Guangzhou City LID Pipe renovation Urban inundation

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Magnetic NiFe_(2)O_(4)@FeNi_(3)core-shell nanospheres derived from FeNi-LDH precursor anchoring on rGO nanosheets for enhanced electromagnetic wave absorption

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Journal of Materials Science & Technology 2024年第4期171卷 101-114页

作者： Kunyao Cao Yuan Fang Shuai Wang Yue Zhang jiayue Wen Jun chen Rui Zhao Weidong Xue School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 610054China

Graphene has been extensively utilized in the domain of electromagnetic wave(EMW)absorption ma-terials because of its excellent electrical conductivity.However,the inferior impedance matching per-formance and the single loss mechanism vastly restrict the application.Hence,it’s an effective strat-egy to solve these issues by introducing magnetic components.Notably,layer double hydroxide(LDH)is an appropriate template to obtain magnetic component materials.Considering that ferromagnetic met-als such as Fe,Co,Ni,and their corresponding metal oxides are usually treated as magnetic compo-nents which are promising candidates for EMW absorption materials.Therefore,in this work,a FeNi-layered double hydroxide-reduced graphene oxide(FeNi-LDH-rGO)aerogel was synthesized through a series of processes such as electrostatic self-assembly,hydrothermal,freeze-drying,and annealing.The magnetic NiFe_(2)O_(4)@FeNi_(3)core-shell nanospheres were obtained from FeNi-LDH precursor,anchoring on rGO nanosheets after the annealing treatment.Furthermore,the effects of different mass ratios of LDH to GO as well as different annealing temperatures of LDH-rGO aerogel on the EMW absorption prop-erty and impedance matching performance were explored.As a consequence,the fabricated ultralight 600LDH-rGO 2:1 aerogel shows a broad effective absorption bandwidth(EAB)of 7.04 GHz at a thickness of 2.3 mm with a low filling content of only 6 wt%and a low density of 4.4 mg/cm^(3).In conclusion,the synthetic LDH-rGO aerogels offer an effective strategy for preparing EMW absorption materials that own three-dimensional porous network structure and unique magnetic NiFe_(2)O_(4)@FeNi_(3)core-shell struc-ture nanospheres.

关键词： Electrostatic self-assembly Electromagnetic wave absorption LDH-rGO aerogel Layered double hydroxide Reduced graphene oxide NiFe_(2)O_(4)@FeNi_(3)core-shell structure

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Plant-based dietary patterns and risk of esophageal cancer:A prospective cohort study spanning 17 years

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Chinese Journal of Cancer Research 2024年第1期36卷 36-45页

作者： Xiaorui Zhang Feifan He jiayue Li Ru chen Xinqing Li Li Li Fen Liu Shaoming Wang Wenqiang Wei Department of Epidemiology and Health Statistics School of Public HealthBeijing Municipal Key Laboratory of Clinical EpidemiologyCapital Medical UniversityBeijing 100069China National Central Cancer Registry office National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Department of Cancer Epidemiology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China

Objective: Plant-based diets have multiple health benefits for cancers;however, little is known about the association between plant-based dietary patterns and esophageal cancer(EC).This study presents an investigation of the prospective associations among three predefined indices of plant-based dietary patterns and the risk of EC.Methods: We performed endoscopic screening for 15,709 participants aged 40-69 years from two high-risk areas of China from January 2005 to December 2009 and followed the cohort until December 31, 2022. The overall plant-based diet index(PDI), healthful plant-based diet index(h PDI), and unhealthful plant-based diet index(u PDI), were calculated using survey responses to assess dietary patterns. We applied Cox proportional hazard regression to estimate the multivariable hazard ratios(HRs) and 95% confidence intervals(95% CIs) of EC across 3plant-based diet indices and further stratified the analysis by subgroups.Results: The final study sample included 15,184 participants in the cohort. During a follow-up of 219,365person-years, 176 patients with EC were identified. When the highest quartile was compared with the lowest quartile, the pooled multivariable-adjusted HR of EC was 0.50(95% CI, 0.32-0.77) for h PDI. In addition, the HR per 10-point increase in the h PDI score was 0.42(95% CI, 0.27-0.66) for ECs. Conversely, u PDI was positively associated with the risk of EC, and the HR was 1.80(95% CI, 1.16-2.82). The HR per 10-point increase in the u PDI score was 1.90(95% CI, 1.26-2.88) for ECs. The associations between these scores and the risk of EC were consistent in most subgroups. These results remained robust in sensitivity analyses.Conclusions: A healthy plant-based dietary pattern was associated with a reduced risk of EC. Emphasizing the healthiness and quality of plant-based diets may be important for preventing the development of EC.

关键词： Esophageal cancer diet dietary pattern epidemiology nutrition prospective cohort study

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Prevalence of Reproductive Tract Infections and Association with Human Papillomavirus Infection Among Reproductive-Age Women—Six Tertiary Hospitals,China,June 2021-December 2022

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China CDC weekly 2024年第10期6卷 189-194,I0002页

作者： Di Gao jiayue Li Gengli Zhao Zhaohui Liu Hui Bi Dai Zhang Fengxia Xue chen Liu Hongtao Ma Bei Lin Xu Wang Xiaosong Zhang Linhong Wang Department of Obstetrics and Gynecology Peking University First HospitalBeijingChina School of Medicine University College DublinIreland Beijing Obstetrics and Gynecology Hospital BeijingChina Tianjin Medical University General Hospital TianjinChina Northwest Women’s and Children’s Hospital Xi’an CityShaanxi ProvinceChina Third Affiliated Hospital of Zhengzhou University Zhengzhou CityHenan ProvinceChina Shengjing Hospital of China Medical University Shenyang CityLiaoning ProvinceChina National Center for Chronic and Non-Communicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina

Summary What is already known about this topic?Previous studies have indicated a possible association between reproductive tract infections(RTIs)and highrisk human papillomavirus(HPV)infection,but the evidence is still inconclusive.What is added by this report?This multicenter study found significantly higher positive rates of HPV,including general HPV,highrisk HPV.

关键词： Tertiary infection Reproductive

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Rapid visual detection of Vibrio parahaemolyticus by combining LAMP-CRISPR/Cas12b with heat-labile uracil-DNA glycosylase to eliminate carry-over contamination

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2023年第8期24卷 749-754页

作者： Fang WU chen LU Wenhao HU Xin GUO jiayue chen Zhidan LUO Jiangsu Key Laboratory of Marine Biological Resources and Environment Jiangsu Key Laboratory of Marine Pharmaceutical Compound ScreeningJiangsu Ocean UniversityLianyungang 222005China Co-Innovation Center of Jiangsu Marine Bio-industry Technology Jiangsu Ocean UniversityLianyungang 222005China BestEnzymes Biotech Co. Ltd.Lianyungang 222005China

Vibrio parahaemolyticus is a major pathogen frequently found in seafood.Rapid and accurate detection of this pathogen is important for the control of bacterial foodborne diseases and to ensure food safety.In this study,we established a one-pot system that combines uracil-DNA glycosylase(UDG),loopmediated isothermal amplification(LAMP),and clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated protein 12b(Cas12b)for detecting V.parahaemolyticus in seafood.This detection system can effectively perform identification using a single tube and avoid the risk of carryover contamination.

关键词： LAMP visual system

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Effects of probiotics， prebiotics and synbiotics supplementation on cardiovascular risk factors in patients with type 2 diabetes mellitus: a GRADE-assessed systematic review and meta-analysis of randomized controlled trials

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Food Science and Human Wellness 2024年

作者： Yanyan Tian jiayue Xia Lihua Li Ligang Yang Hua Xiao Guoping Gao Yuanyuan Wang chen Zhang Tiange Bu Guiju Sun Department of Nutritional Sciences University of Toronto Key Laboratory of Environmental Medicine and Engineering of Ministry of Education Department of Nutrition and Food Hygiene School of Public Health Southeast University Lianshui People's Hospital Affiliated to Kangda College of Nanjing Medical University Gong'an County People's Hospital

A systematic review and meta-analysis study was conducted to assess the effectiveness of probiotic/prebiotic/synbiotic supplementation on the effects of cardiovascular risk factors in patients with type 2 diabetes mellitus (T2DM) based on data from randomized controlled trials (RCTs). We searched electronic databases including PubMed， Cochrane Library， Embase， and Web of Science to identify clinical trials published up to 31 March 2023. Data was pooled using a random-effects model if significant heterogeneity (I2> 50%)， otherwise use a fixed-effects model. Fifty-six trials that included 3 317 patients were enrolled for analysis. Meta-analysis reported that probiotic/prebiotic/synbiotic supplementation significantly reduced systolic blood pressure (SBP) (weighted mean difference (WMD): -3.57 mmHg， 95% confidence interval (CI): -5.36， -1.78; P = 0.000)， diastolic blood pressure (DBP) (WMD: -2.05 mmHg， 95% CI: -3.07， -1.04; P = 0.000)， triglycerides (TG) (WMD: -16.10 mg/dL， 95% CI: -20.16， -12.05; P = 0.000)， total cholesterol (TC) (WMD: -14.00 mg/dL， 95% CI: -20.46， -7.55; P = 0.000)， low-density lipoprotein cholesterol (LDL-C) (WMD: -7.03 mg/dL， 95% CI: -9.25， -4.81; P = 0.000)， fasting plasma glucose (FPG) (WMD: -16.57 mg/dL， 95% CI: -20.39， -12.74; P = 0.000)， hemoglobin A1c (HbA1c) (WMD: -0.44%， 95% CI: -0.68， -0.20; P = 0.000)， insulin (standardized mean difference (SMD): -0.37， 95% CI: -0.53， -0.21; P = 0.000)， homeostatic model assessment of insulin resistance (HOMA-IR) (WMD: -1.05， 95% CI: -1.56， -0.54; P = 0.000)， C-reactive protein (CRP) (SMD: -0.35， 95% CI: -0.57， -0.13; P = 0.002)， tumor necrosis factor-α (TNF-α) (SMD: -1.07， 95% CI: -1.57， -0.56; P = 0.000)， interleukin-6 (IL-6) (SMD: -0.37 ， 95% CI: -0.61， -0.13; P = 0.003) levels， they also increased the high-density lipoprotein cholesterol (HDL-C) (WMD: 3.70 mg/dL， 95% CI: 1.80， 5.60; P = 0.000) levels in T2DM patients， as compared to the placebo groups. This meta-analysis supports the use of probiotic/prebiotic/synbiotic supplementation as an adjun

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具有强光吸收和超亲水性的层级木质素基静电纺丝碳膜用于海水淡化

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Science China Materials 2024年第3期67卷 954-964页

作者：陈嘉玥曹美莲岳一莹 College of Ecology and the Environment Nanjing Forestry UniversityNanjing 210037China School of Materials Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China

木质素的高价值利用满足了废弃物资源化利用的需求,对实现碳中和具有重要意义.然而,木质素在高温下不稳定,容易熔化和变形,需要较长的稳定时间.通过电纺制备的碳纳米纤维(CNF)膜具有高纵横比、低密度、良好的光吸收和丰富的孔隙结构等优... 详细信息

木质素的高价值利用满足了废弃物资源化利用的需求,对实现碳中和具有重要意义.然而,木质素在高温下不稳定,容易熔化和变形,需要较长的稳定时间.通过电纺制备的碳纳米纤维(CNF)膜具有高纵横比、低密度、良好的光吸收和丰富的孔隙结构等优势.本文基于共电纺技术制备了一种以木质素为基础的CNF膜材料.该材料的制备过程不仅能够节省木质素基纳米纤维的稳定时间,还通过氯化锌激活和添加孔隙形成剂(苯二甲酸和聚甲基丙烯酸甲酯)提高了膜的亲水性和光吸收性能.作为界面太阳蒸发系统的光热层,该膜在整个太阳光谱下的光吸收率为94.3%.此外,以制备的CNF膜作为光热层的界面太阳蒸发系统(@1 sun)表现出1.43 kg m^(-2)h^(-1)的蒸发速率,蒸发效率为93.8%.此外,蒸发器具有良好的循环和耐盐性能,在连续照射15 h后仍然保持卓越的蒸发速率.这种以木质素为主要碳源的CNF膜在海水淡化应用中具有巨大的光热转化潜力.

关键词： biomass-derived lignin electrospinning carbon nanofibers membrane photothermal conversion desalination

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基于混合强化学习的主动配电网故障恢复方法

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电力系统及其自动化学报 2024年第4期36卷 50-58页

作者：徐岩陈嘉岳马天祥华北电力大学电气与电子工程学院保定071003 国网河北省电力有限公司电力科学研究院石家庄050021

针对高比例新能源接入的配电网故障恢复问题,提出一种基于混合强化学习的主动配电网故障恢复方法。首先,以故障损失最小为恢复目标、配电网安全运行要求为约束条件,构造主动配电网的故障恢复模型;其次,建立用于故障恢复的强化学习环境,... 详细信息

针对高比例新能源接入的配电网故障恢复问题,提出一种基于混合强化学习的主动配电网故障恢复方法。首先,以故障损失最小为恢复目标、配电网安全运行要求为约束条件,构造主动配电网的故障恢复模型;其次,建立用于故障恢复的强化学习环境,根据状态空间和动作空间特点,提出一种混合强化学习方法,该方法使用竞争架构双深度Q网络算法处理离散动作空间,进行开关动作;然后,使用深度确定性策略梯度算法处理连续动作空间,调节电源出力;最后,通过IEEE33节点系统仿真实验验证所提方法的可行性和优越性。

关键词：主动配电网故障恢复混合强化学习状态空间动作空间

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g-C_(3)N_(4)基S型异质结光催化剂

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Science China Materials 2024年第2期67卷 444-472页

作者：吴新鹤谭丽红陈郭强康佳乐王国宏 Hubei Key Laboratory of Pollutant Analysis and Reuse Technology College of Chemistry and Chemical EngineeringHubei Normal UniversityHuangshi 435002China

随着工业化的蓬勃发展,能源短缺和环境污染日益严重,威胁到人类的生存.光催化技术因其诸多突出优点和广泛的应用前景被认为是解决能源和环境危机最有前途的技术之一.在众多光催化剂中,石墨氮化碳(g-C_(3)N_(4))以其独特的电子结构、较... 详细信息

随着工业化的蓬勃发展,能源短缺和环境污染日益严重,威胁到人类的生存.光催化技术因其诸多突出优点和广泛的应用前景被认为是解决能源和环境危机最有前途的技术之一.在众多光催化剂中,石墨氮化碳(g-C_(3)N_(4))以其独特的电子结构、较高的热稳定性和突出的光电活性,在清洁燃料生产和环境净化领域得到广泛应用.然而,单组分g-C_(3)N_(4)与其他光催化剂一样,不可能同时拥有高的太阳能利用效率和强氧化还原能力的光生电荷,导致其光催化效率较低.幸运的是,g-C_(3)N_(4)与另一半导体构建异质结可以同时克服太阳能利用效率低、载流子重组快、氧化还原能力弱的缺点,从而显著提高其光催化性能.鉴于目前g-C_(3)N_(4)基S型异质结的广泛研究,本文对g-C_(3)N_(4)基S型异质结研究背景、概念提出、基本理论、设计制备、表征方法等方面的最新研究进展进行了较全面的综述.此外,通过实例讨论和列表比较详细讨论了g-C_(3)N_(4)基S型异质结的各种应用,包括光催化制H_(2)、还原CO_(2)、降解污染物、生产H_(2)O_(2).最后,总结了g-C_(3)N_(4)基S型异质结当前的研究进展和不足,并对未来的研究方向进行了展望.

关键词： photocatalysis g-C_(3)N_(4) heterojunction S-scheme applications

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制导控制系统半实物仿真总体方案设计及集成联试

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系统仿真学报 2024年第1期36卷 83-96页

作者：常晓飞焦佳玥陈康符文星闫杰西北工业大学无人系统技术研究院陕西西安710072

半实物仿真作为一个大型分布式仿真系统,其总体方案的设计优劣和集成联试的是否顺利,直接影响了系统性能指标的表现和建设目标的实现。归纳总结了总体方案设计的工作内容,分析了实时性、兼容性、扩展性和安全性的性能要求;给出了包括功... 详细信息

半实物仿真作为一个大型分布式仿真系统,其总体方案的设计优劣和集成联试的是否顺利,直接影响了系统性能指标的表现和建设目标的实现。归纳总结了总体方案设计的工作内容,分析了实时性、兼容性、扩展性和安全性的性能要求;给出了包括功能层次、运行机制和结构组成在内的典型半实物仿真系统总体方案;概括了仿真系统的集成联试内容,总结了典型系统的集成联试步骤,给出了系统验收测试的内容和系统可信度评估方法。

关键词：半实物仿真总体方案集成联试运行机制

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