检索范围:
排序: 展示方式:
Methods and applications of DEA cross-efficiency: Review and future perspectives
Jie WU, Jiasen SUN, Liang LIANG
《工程管理前沿(英文)》 2021年 第8卷 第2期 页码 199-211 doi: 10.1007/s42524-020-0133-1
关键词: cross-efficiency evaluation efficiency secondary goal model aggregation review
Simple model of sludge thickening process in secondary settlers
Yuankai ZHANG,Hongchen WANG,Lu QI,Guohua LIU,Zhijiang HE,Songzhu JIANG
《环境科学与工程前沿(英文)》 2016年 第10卷 第2期 页码 319-326 doi: 10.1007/s11783-014-0758-6
关键词: wastewater treatment plants secondary settler sludge thickening sludge settling hindered zone
Two-echelon Emergency Response Problem and Simulation Considering Secondary Disasters
Han-peng Zhang,Yi Liao,Hui-xia Luo
《工程管理前沿(英文)》 2014年 第1卷 第3期 页码 318-321 doi: 10.15302/J-FEM-2014042
关键词: simulation secondary disasters two-echelon vehicle routing model
战兴群,张炎华,赵克定
《中国工程科学》 2000年 第2卷 第7期 页码 47-54
静液驱动二次调节技术是一项新型的液压传动技术。它具有控制方便、容易组成类似于电气系统的网络执行机构以及液压能回收与重新利用,甚至比电气系统更为简便等一系列突出的优点。二次调节技术的研究将极大地提高液压传动技术的应用范围和产品的竞争力。扭矩伺服加载系统是二次调节技术研究的一个典型装置,同时它也具有很好的应用背景。文章通过对二次调节加载装置全系统建模,分析了二次调节技术的一些内在动态特性,建立了二次调节扭矩加载计算机控制系统,用部分实验曲线验证了理论分析的正确性。
《环境科学与工程前沿(英文)》 2021年 第15卷 第4期 doi: 10.1007/s11783-020-1368-0
• SMX was mainly degraded by hydrolysis, isoxazole oxidation and double-bond addition.
关键词: Sulfamethoxazole Ozonation Natural organic matters Secondary effluent Degradation mechanism
Physical and chemical processes of wintertime secondary nitrate aerosol formation
Qi YING
《环境科学与工程前沿(英文)》 2011年 第5卷 第3期 页码 348-361 doi: 10.1007/s11783-011-0343-1
关键词: secondary nitrate aerosol N2O5 heterogeneous reaction process analysis
Formation of secondary inorganic aerosol in a frigid urban atmosphere
《环境科学与工程前沿(英文)》 2022年 第16卷 第2期 doi: 10.1007/s11783-021-1452-0
•Harbin showed relatively high threshold RH (80%) for apparent increase of SOR.
关键词: Haze Sulfate Nitrate Heterogeneous chemistry Biomass burning Northeast China
Haiqian LI, Yonglong LU, Li LI
《环境科学与工程前沿(英文)》 2013年 第7卷 第4期 页码 589-597 doi: 10.1007/s11783-013-0495-2
关键词:
polychlorinated dibenzo-
null
《医学前沿(英文)》 2017年 第11卷 第1期 页码 137-146 doi: 10.1007/s11684-016-0486-3
This study aims to elucidate the underlying molecular mechanisms of artemisinin accumulation induced by cadmium (Cd). The effects of different Cd concentrations (0, 20, 60, and 120 μmol/L) on the biosynthesis of Artemisia annua L. were examined. Intermediate and end products were quantified by HPLC-ESI-MS/MS analysis. The expression of key biosynthesis enzymes was also determined by qRT-PCR. The results showed that the application of treatment with 60 and 120 μmol/L Cd for 3 days significantly improved the biosynthesis of artemisinic acid, arteannuin B, and artemisinin. The concentrations of artemisinic acid, arteannuin B, and artemisinin in the 120 μmol/L Cd-treated group were 2.26, 102.08, and 33.63 times higher than those in the control group, respectively. The concentrations of arteannuin B and artemisinin in 60 μmol/L Cd-treated leaves were 61.10 and 26.40 times higher than those in the control group, respectively. The relative expression levels of HMGR, FPS, ADS, CYP71AV1, DBR2, ALDH1, and DXR were up-regulated in the 120 μmol/L Cd-treated group because of increased contents of artemisinic metabolites after 3 days of treatment. Hence, appropriate doses of Cd can increase the concentrations of artemisinic metabolites at a certain time point by up-regulating the relative expression levels of key enzyme genes involved in artemisinin biosynthesis.
关键词: Cd secondary metabolites gene expressions Artemisia annua L.
Yinao Su, Houliang Dai, Lichun Kuang, Jizhen Liu, Dazhao Gu, Caineng Zou, Haixia Huang
《工程(英文)》 2022年 第11卷 第4期 页码 154-154 doi: 10.1016/j.eng.2022.03.002
On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms
Soheil ZARKANDI
《机械工程前沿(英文)》 2014年 第9卷 第1期 页码 34-40 doi: 10.1007/s11465-014-0290-1
As the instant centers in planar mechanisms, the instantaneous poles (or instant poles, in brief) can be used for kinematic analysis in spherical mechanisms. One of the mandatory steps in this analysis is the determination of the location of these poles. This paper presents a theorem showing analytically that the locus of an unknown secondary instant pole in two-degree-of-freedom (2-DOF) spherical mechanisms is a great circle (GC). The exact location of the pole on its GC is obtained based on the configuration of the mechanism and velocity ratio of the two inputs. Moreover, using the results of the theorem, a geometrical technique is presented to determine the GC of the pole.
关键词: spherical mechanisms instantaneous poles great circle angular velocity
Xiliang ZHANG, Zhiying CUI, Jianhan ZHANG, Fengwu BAI, Zhifeng WANG
《能源前沿(英文)》 2019年 第13卷 第3期 页码 590-596 doi: 10.1007/s11708-018-0602-y
关键词: secondary parabolic trough solar concentrator ray tracing method linear focus concentration ratio optical performance
Relationship between the number of tapping-induced secondary laticifer lines and rubber yield among
Yueyi CHEN,Xinsheng GAO,Xiaofei ZHANG,Weimin TIAN
《农业科学与工程前沿(英文)》 2016年 第3卷 第4期 页码 363-367 doi: 10.15302/J-FASE-2016122
关键词: Hevea brasiliensis rubber yield breeding early evaluation tapping secondary laticifer differentiation
A method for quantifying bias in modeled concentrations and source impacts for secondary particulate
Cesunica E. Ivey, Heather A. Holmes, Yongtao Hu, James A. Mulholland, Armistead G. Russell
《环境科学与工程前沿(英文)》 2016年 第10卷 第5期 doi: 10.1007/s11783-016-0866-6
关键词: Particulate matter Source apportionment Secondary particulate matter Chemical transport modeling Receptor modeling
Effects of two transition metal sulfate salts on secondary organic aerosol formation in toluene/NO
Biwu CHU, Jiming HAO, Junhua LI, Hideto TAKEKAWA, Kun WANG, Jingkun JIANG
《环境科学与工程前沿(英文)》 2013年 第7卷 第1期 页码 1-9 doi: 10.1007/s11783-012-0476-x
关键词: manganese sulfate zinc sulfate seed aerosols toluene photooxidation secondary organic aerosol
标题 作者 时间 类型 操作
Methods and applications of DEA cross-efficiency: Review and future perspectives
Jie WU, Jiasen SUN, Liang LIANG
期刊论文
Simple model of sludge thickening process in secondary settlers
Yuankai ZHANG,Hongchen WANG,Lu QI,Guohua LIU,Zhijiang HE,Songzhu JIANG
期刊论文
Two-echelon Emergency Response Problem and Simulation Considering Secondary Disasters
Han-peng Zhang,Yi Liao,Hui-xia Luo
期刊论文
Mechanisms for simultaneous ozonation of sulfamethoxazole and natural organic matters in secondary effluent
期刊论文
PCDD/Fs emission, risk characterization, and reduction in China’s secondary copper production industry
Haiqian LI, Yonglong LU, Li LI
期刊论文
Effects of different doses of cadmium on secondary metabolites and gene expression in Artemisia annua
null
期刊论文
Contemplation on China’s Energy-Development Strategies and Initiatives in the Context of its Carbon Neutrality Goal
Yinao Su, Houliang Dai, Lichun Kuang, Jizhen Liu, Dazhao Gu, Caineng Zou, Haixia Huang
期刊论文
On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms
Soheil ZARKANDI
期刊论文
Optical performance analysis of an innovative linear focus secondary trough solar concentrating system
Xiliang ZHANG, Zhiying CUI, Jianhan ZHANG, Fengwu BAI, Zhifeng WANG
期刊论文
Relationship between the number of tapping-induced secondary laticifer lines and rubber yield among
Yueyi CHEN,Xinsheng GAO,Xiaofei ZHANG,Weimin TIAN
期刊论文
A method for quantifying bias in modeled concentrations and source impacts for secondary particulate
Cesunica E. Ivey, Heather A. Holmes, Yongtao Hu, James A. Mulholland, Armistead G. Russell
期刊论文