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《环境科学与工程前沿(英文)》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1471-x
• Hg bioaccumulation by phytoplankton varies among aquatic ecosystems.
关键词: Plankton Hg bioaccumulation Physiological characteristics A cross-system analysis Nutrient compositions Global data set
River Chief System (RCS): An experiment on cross-sectoral coordination of watershed governance
Longfei Wang, Jiaxin Tong, Yi Li
《环境科学与工程前沿(英文)》 2019年 第13卷 第4期 doi: 10.1007/s11783-019-1157-9
The trans-regional characteristics of watershed governance produce more problems beyond the capacity of each individual water-related department, leading to the fragmentation of watershed management. The River Chief System (RCS) has experienced swift developments over the past decade in China by appointing the local government heads as river chiefs. RCS works efficiently in the short-term due to its superiority in the inclusion of clear responsibility, authority, and multi-sectoral collaboration. However, the characteristics of the authority-based vertical coordination of the hierarchical system remain unchanged, and therefore the problems of organizational logic and the responsibility dilemma still exist. Tasks including perfecting of laws, integrated watershed management, and public participation still need to be completed. RCS reflects the routine and characteristics of the migration of national governance, and as such provides new insights for other developing countries in the design of river management systems.
关键词: River Chief System Watershed governance Cross-sectoral coordination Environmental protection
RESPONSE OF WHEAT COMPOSITE CROSS POPULATIONS TO DISEASE AND CLIMATE VARIATION OVER 13 GENERATIONS
《农业科学与工程前沿(英文)》 2021年 第8卷 第3期 页码 400-415 doi: 10.15302/J-FASE-2021394
Since the F5 (2005), three winter wheat composite cross populations (CCPs) based on germplasm specifically suitable for low-input conditions were subjected to natural selection under organic and conventional management. In the F6, each CCP was divided into two parallel populations (12 CCPs in total) and maintained continuously until 2018. Commonly used modern cultivars with different disease susceptibilities were grown alongside to assess the agronomic performance of the CCPs. The organically managed CCPs were comparable in yield and foliar disease resistance to two continuously used reference cultivars, Achat and Capo. In contrast, under conventional management the cv. Capo outyielded the CCPs (Achat was not tested), highlighting the importance of parental cultivar choice for specific management systems. The CCPs were found to be moderately resistant to brown rust and even to the newly emerged stripe rust races prevalent in Europe since 2011. Differences between the CCPs were mainly due to parental genetic background and were significant in the first five generations, but were no longer so in the last five generations. In addition, these differences tended to vary depending on the experimental year and the environmental stresses present. In conclusion, the CCPs despite being derived from older cultivars are able to compete with more recently released reference cultivars under organic farming practices and represent a dynamic germplasm resource.
关键词: evolutionary breeding heterogeneous crop population management system
Yuji CHEN, Qizhi LUO,
《结构与土木工程前沿(英文)》 2009年 第3卷 第4期 页码 352-356 doi: 10.1007/s11709-009-0057-7
关键词: thin-walled box girder with variable cross-sections potential variational theory shear lag large deflection problem
Numerical analysis of aerodynamic noise radiated from cross flow fan
CHEN Anbang, LI Song, HUANG Dongtao
《能源前沿(英文)》 2008年 第2卷 第4期 页码 443-447 doi: 10.1007/s11708-008-0063-9
关键词: predicted aerodynamic Williams-Hawkings calculated pressure aerodynamic performance unsteady Reynolds-averaged
《医学前沿(英文)》 doi: 10.1007/s11684-023-1022-x
关键词: acute promyelocytic leukemia plasma proteomics plasma metabolomics cross-sectional correlation network pathogenesis treatment
Air bearing center cross gap of neutron stress spectrometer sample table support system
Yang LI,Yunxin WU,Hai GONG,Xiaolei FENG
《机械工程前沿(英文)》 2016年 第11卷 第4期 页码 403-411 doi: 10.1007/s11465-016-0405-y
A support system is the main load-bearing component of sample table for neutron stress spectrometer, and air bearing is an important element of a support system. The neutron stress spectrometer sample table was introduced, and the scheme for air bearing combination was selected. To study the performance of air bearing center cross gap, finite element models (FEMs) were established based on air motion and Reynolds equations, effects of air supply pressure, and gap parameters on the overturning moment and bearing capacity of air bearing center cross gap were analyzed. Results indicate that the width, depth, and height differences of the marble floor gap played important roles in the performance of the air bearing. When gap width is lesser than 1 mm and gap depth is lower than 0.4 mm, bearing capacity and overturning moment would vary rapidly with the variation of the width and depth. A gap height difference results in the bearing capacity dropping rapidly. The FEM results agree well with experimental results. Further, findings of the study could guide the design of the support system and marble floor.
关键词: neutron stress spectrometer sample table support system air bearing center cross gap simulation experiment
Probabilistic analysis of secant piles with random geometric imperfections
《结构与土木工程前沿(英文)》 2021年 第15卷 第3期 页码 682-695 doi: 10.1007/s11709-021-0703-2
关键词: secant piles ultrasonic cross-hole testing probabilistic analysis reliability-based design random imperfections
跨媒体分析与推理:研究进展与发展方向 Review
Yu-xin PENG,Wen-wu ZHU,Yao ZHAO,Chang-sheng XU,Qing-ming HUANG,Han-qing LU,Qing-hua ZHENG,Tie-jun HUANG,Wen GAO
《信息与电子工程前沿(英文)》 2017年 第18卷 第1期 页码 44-57 doi: 10.1631/FITEE.1601787
关键词: 跨媒体分析;跨媒体推理;跨媒体应用
Development of MCBurn and its application in the analysis of SCWR physical characteristics
Ganglin YU , Kan WANG ,
《能源前沿(英文)》 2009年 第3卷 第3期 页码 348-352 doi: 10.1007/s11708-009-0031-z
关键词: Monte Carlo method MCBurn SCWR neutron cross-section lib
DUAN Wei
《能源前沿(英文)》 2008年 第2卷 第1期 页码 107-115 doi: 10.1007/s11708-008-0018-1
关键词: Probability sensitivity sensitivity analysis number cross-section statistical
谭忠盛,吴永胜,万飞
《中国工程科学》 2013年 第15卷 第12期 页码 32-38
在收集渤海海峡的气象水文、地形地貌、地层岩性、地质构造及地震活动等资料,以及现场调研的基础上,分析了渤海海峡跨海工程的建设条件。由于海峡雾大、风大,年平均大风日达67.8 d,故采用桥梁方案不利于全天候通行。由于海峡岛屿众多,且南北向成一字形分布,跨海工程线位可选择连岛方案以减小建设难度和成本。海峡第四系地层稳定性差,且第三系地层主要为玄武岩,大孔隙结构,分布极不均匀,最厚达70 m,这两套地层对隧道埋深的选择有较大影响。对于蓬莱—旅顺线位,场址附近没有活动断层,地层相对稳定。这些资料可为渤海海峡跨海通道方案的初步研究提供参考。
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《医学前沿(英文)》 2017年 第11卷 第4期 页码 528-535 doi: 10.1007/s11684-017-0573-0
The prevalence of tuberculosis infection among adolescents born after terminating the Bacillus Calmette–Guérin (BCG) booster vaccination in China was estimated using tuberculin skin testing (TST) and QuantiFERON-TB Gold assay (QFT) to investigate the influence of neonatal BCG vaccination on the performance of TST. Data analysis was conducted for 2831 eligible participants aged 5–15 years from the baseline survey of a population-based multi-center prospective study. The prevalence rates of TST (induration≥10 mm) and QFT positivity were 9.3% (264/2827) and 2.5% (71/2831), respectively. The rate of QFT indeterminate result was 2.2% (62/2831). The overall agreement between TST and QFT was low (concordance= 88.0%; κ coefficient= 0.125). Only TST was positively associated with BCG vaccination with an adjusted odds ratio of 1.71 [95% confidence interval, 1.26–2.31]. A history of close contact with patients of active TB was significantly associated with positivity for TST and QFT. Our results suggested that BCG neonatal vaccination still affects TST performance, and a two-step approach might be considered for TB infection testing among adolescents in China.
关键词: tuberculin skin test interferon-γ release assays adolescent agreement
Quanyin Tan,Fei Liu,Jinhui Li,
《工程(英文)》 doi: 10.1016/j.eng.2023.09.018
关键词: Iron and steel industry Carbon and pollution emissions Synergistic reduction Technological structure Steel scrap Cross-elasticity
标题 作者 时间 类型 操作
Characteristics of plankton Hg bioaccumulations based on a global data set and the implications for aquatic systems with aggravating nutrient imbalance
期刊论文
River Chief System (RCS): An experiment on cross-sectoral coordination of watershed governance
Longfei Wang, Jiaxin Tong, Yi Li
期刊论文
RESPONSE OF WHEAT COMPOSITE CROSS POPULATIONS TO DISEASE AND CLIMATE VARIATION OVER 13 GENERATIONS
期刊论文
Mechanics analysis of thin-walled box continuous girder with variable cross-sections in considering effect
Yuji CHEN, Qizhi LUO,
期刊论文
Numerical analysis of aerodynamic noise radiated from cross flow fan
CHEN Anbang, LI Song, HUANG Dongtao
期刊论文
Cross-sectional network analysis of plasma proteins/metabolites correlated with pathogenesis and therapeutic
期刊论文
Air bearing center cross gap of neutron stress spectrometer sample table support system
Yang LI,Yunxin WU,Hai GONG,Xiaolei FENG
期刊论文
跨媒体分析与推理:研究进展与发展方向
Yu-xin PENG,Wen-wu ZHU,Yao ZHAO,Chang-sheng XU,Qing-ming HUANG,Han-qing LU,Qing-hua ZHENG,Tie-jun HUANG,Wen GAO
期刊论文
Development of MCBurn and its application in the analysis of SCWR physical characteristics
Ganglin YU , Kan WANG ,
期刊论文
Probability strength design of steam turbine blade and sensitivity analysis with respect to random parameters
DUAN Wei
期刊论文
Chinese adolescents born after terminating the Bacillus Calmette--Guérin booster vaccination: subgroup analysisof a population-based cross-sectional study
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期刊论文