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A comprehensive review of wind power based power system frequency regulation
《能源前沿(英文)》 2023年 第17卷 第5期 页码 611-634 doi: 10.1007/s11708-023-0876-6
关键词: frequency regulation strategies wind turbine generators grid-forming control model predictive control energy storage system
Yajvender Pal VERMA, Ashwani KUMAR
《能源前沿(英文)》 2013年 第7卷 第2期 页码 245-254 doi: 10.1007/s11708-012-0218-6
关键词: frequency regulation fuzzy controller de-regulated power system doubly fed induction generator (DFIG) bilateral contract
Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG
《能源前沿(英文)》 2014年 第8卷 第3期 页码 386-393 doi: 10.1007/s11708-014-0323-9
关键词: high voltage (HV) grid frequency stability parameter identification primary frequency regulation (PFR)
Design and analysis of a new high frequency double-servo direct drive rotary valve
Muzhi ZHU,Shengdun ZHAO,Jingxiang LI
《机械工程前沿(英文)》 2016年 第11卷 第4期 页码 344-350 doi: 10.1007/s11465-016-0406-x
Researchers have investigated direct drive valve for many years to solve problems, such as fluid force imbalance and switching frequency. The structure of the rotary valve has received considerable research interest because of its favorable dynamic properties and simple structure. This paper studied the high frequency double-servo direct drive rotary valve (DDRV), and proposed a novel structure and drive method satisfying high reversing frequency and adequate quantity of flow. Servo motors are integrated into the valve by the innovative structure, which is designed to equilibrate the unbalanced radial fluid force with the symmetric distributed oil ports. Aside from the fast reversing function of the valve, the DDRV presented high performance in linearity of the flow quantity and valve opening as a result of the fan-shaped flow ports. In addition, a computational fluid dynamics (CFD) method based on Fluent was conducted to verify the flux regulation effect of the height change of the adjustable boss.
关键词: direct drive rotary valve computational fluid dynamics (CFD) flow regulation
Zhisong CHEN, Li FANG, Huimin WANG
《工程管理前沿(英文)》 2019年 第6卷 第1期 页码 87-101 doi: 10.1007/s42524-019-0006-7
Faced with the rapid development of modern industries of agriculture, manufacturing, and services, water resources are becoming increasingly scarce. Industries with high water consumption are generally regulated by the government’s water cap-and-trade (CAT) regulation to solve the contradiction between the limited water supply and the rapid growing water demand. Supply chain equilibrium and coordination models under the benchmark scenario without water saving and CAT regulation, water-saving supply chain equilibrium and coordination models under the scenario without/with CAT regulation are developed, analyzed and compared. The corresponding numerical and sensitivity analyses for all models are conducted and compared, and the managerial insights and policy recommendations are summarized in this article. The results indicate that (1) Conducting water saving could improve effectively the operational performance of the water-saving supply chain under the scenario without/with CAT regulation. (2) The coordination strategy based on the revenue sharing contract could efficiently coordinate the water-saving supply chain, enhance water consumption reduction rate, and improve the operational performance of the water-saving supply chain. (3) The implementation of CAT regulation enhances effectively water-consumption-reduction in the water-saving supply chain and improves the operational performance of water-saving supply chain. (4) Simultaneous implementation of CAT regulation by the government and adopting coordination strategy by the water-saving supply chain would be superior to any other scenarios/strategies. (5) A suitable water cap based on the industrial average water consumption and historical water consumption data are beneficial for constructing reasonable and effective incentive mechanism. (6) A higher marginal trade price could induce more reduction in water consumption and create better operational performance for the manufacturer and water-saving supply chain, both under the equilibrium and coordination strategies.
关键词: water-saving supply chain equilibrium coordination internal incentive cap and trade regulation
曹晓峰,胡承志,齐维晓,郑华,单保庆,赵勇,曲久辉
《中国工程科学》 2019年 第21卷 第5期 页码 130-136 doi: 10.15302/J-SSCAE-2019.05.008
京津冀的水资源短缺与水环境污染问题已经成为制约区域协同发展战略实施的重大因素。本文在综合分析京津冀区域水资源调控及水环境安全现状与挑战的基础上,提出区域水资源及水环境调控与安全保障策略:通过技术途径打造山水林田湖海水生态格局,构建水健康循环与高效利用模式,发展与水生态承载力相适应的生产生活方式,提升水环境质量与保障区域水生态健康,建立区域水环境质量协同管理体系,加强京津冀产业协同调配与污染减量化以及推进“半城市化”与农村污染治理。相关研究可为京津冀区域生态环境综合治理与国家生态文明建设提供决策支撑。
Moving policy and regulation forward for single-use plastic alternatives
《环境科学与工程前沿(英文)》 2021年 第15卷 第3期 doi: 10.1007/s11783-021-1423-5
关键词: Single-use plastic alternatives Policy Regulation Sustainable development
Phase transition regulation and caloric effect
《能源前沿(英文)》 2023年 第17卷 第4期 页码 463-477 doi: 10.1007/s11708-023-0860-1
关键词: phase transition regulation caloric effect solid state refrigeration
The function and regulation of OTU deubiquitinases
Jiansen Du, Lin Fu, Yingli Sui, Lingqiang Zhang
《医学前沿(英文)》 2020年 第14卷 第5期 页码 542-563 doi: 10.1007/s11684-019-0734-4
关键词: ubiquitin OTU deubiquitinases structure function regulation
齐璞,孙赞盈,齐宏海
《中国工程科学》 2014年 第16卷 第8期 页码 64-68
黄河下游的堤防是按照小浪底建库前千年洪水设防水位,加超高2.5 m或3 m设计,堤后淤背宽度百米,小浪底水库投入运用后下游宽河道段河槽下切2 米多,下游窄河段下切1 米多;在洪水不断减小的新形势下,防洪形势发生根本性变化,今后不存在大堤决口的可能。其合理的治理目标是,在中游完善以小浪底水库为中心的调水调沙体系,使更多泥沙由洪水输送;在下游进行双向河槽整治,稳定河槽,形成高效排洪输沙通道;控制河床不发生过渡冲刷,保证两岸引水,使洪水不漫滩;彻底解放黄河下游滩区和防洪中横河斜河等诸多问题,使黄河彻底由害河变为利河。
《农业科学与工程前沿(英文)》 2021年 第8卷 第2期
Fruit ripening is a complex developmental process made up of genetically programmed physiological and biochemical activities. It culminates in desirable changes in the structural and textural properties and is governed by a complex regulatory network. Much is known about ethylene, one of the most important metabolites promoting the ripening of climacteric fruits. However, the dynamic interplay between phytohormones also plays an important part. Additional regulatory factors such as transcription factors (TFs) and epigenetic modifications also play vital role in the regulation of climacteric fruit ripening. Here, we review and evaluate the complex regulatory network comprising interactions between hormones and the action of TFs and epigenetic modifications during climacteric fruit ripening.
关键词: climacteric fruit ripening / phytohormones / TFs / epigenetic modifications
Molecular regulation and genetic improvement of seed oil content in
Wei HUA,Jing LIU,Hanzhong WANG
《农业科学与工程前沿(英文)》 2016年 第3卷 第3期 页码 186-194 doi: 10.15302/J-FASE-2016107
Regulation of exogenous bFGF gene mediated by recombinant adeno-associated virus
Ke SONG, Nianjing RAO, Meiling CHEN, Yingguang CAO
《医学前沿(英文)》 2009年 第3卷 第2期 页码 158-163 doi: 10.1007/s11684-009-0042-5
关键词: tetracycline regulatory system adeno-associated virus basic fibroblast growth factor gene regulation
Yinglin JI, Mingyang XU, Aide WANG
《农业科学与工程前沿(英文)》 页码 314-334 doi: 10.15302/J-FASE-2021386
关键词: climacteric fruit ripening phytohormones TFs epigenetic modifications
《工程管理前沿(英文)》 页码 452-461 doi: 10.1007/s42524-022-0209-1
关键词: CO2 emissions demand side regulation multi-regional input–output model linear programming model
标题 作者 时间 类型 操作
Load frequency control in deregulated power system with wind integrated system using fuzzy controller
Yajvender Pal VERMA, Ashwani KUMAR
期刊论文
Parameter identification of interconnected power system frequency after trip-out of high voltage transmission
Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG
期刊论文
Design and analysis of a new high frequency double-servo direct drive rotary valve
Muzhi ZHU,Shengdun ZHAO,Jingxiang LI
期刊论文
Internal incentives and operations strategies for the water-saving supply chain with cap-and-trade regulation
Zhisong CHEN, Li FANG, Huimin WANG
期刊论文
The function and regulation of OTU deubiquitinases
Jiansen Du, Lin Fu, Yingli Sui, Lingqiang Zhang
期刊论文
RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETIC
期刊论文
Molecular regulation and genetic improvement of seed oil content in
Wei HUA,Jing LIU,Hanzhong WANG
期刊论文
Regulation of exogenous bFGF gene mediated by recombinant adeno-associated virus
Ke SONG, Nianjing RAO, Meiling CHEN, Yingguang CAO
期刊论文
RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETIC
Yinglin JI, Mingyang XU, Aide WANG
期刊论文