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A comprehensive review of wind power based power system frequency regulation

Frontiers in Energy 2023, Volume 17, Issue 5,   Pages 611-634 doi: 10.1007/s11708-023-0876-6

Abstract: Thus, the capability of WP participating in the system frequency regulation has become a research hotspotIn this paper, the impact of WP on power system frequency stability is initially presented.In addition, various existing control strategies of WP participating in frequency regulation are reviewedMoreover, the WP combing with energy storage system (ESS) for system frequency regulation is exploredregulation are summarized.

Keywords： frequency regulation strategies     wind turbine generators     grid-forming control     model predictive control    

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Load frequency control in deregulated power system with wind integrated system using fuzzy controller

Yajvender Pal VERMA, Ashwani KUMAR

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 245-254 doi: 10.1007/s11708-012-0218-6

Abstract: This paper presents the analysis of load frequency control (LFC) of a deregulated two-area hydro-thermalinertial support to the system through modified inertial control scheme, and arrests the initial fall in frequencyThe inertial control responds to frequency deviations, which takes out the kinetic energy of the windturbine for improving the frequency response of the system.To enhance the participation of the doubly fed induction generator (DFIG) in the frequency control, optimal

Keywords： frequency regulation     fuzzy controller     de-regulated power system     doubly fed induction generator (DFIG)    

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Parameter identification of interconnected power system frequency after trip-out of high voltage transmission

Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 386-393 doi: 10.1007/s11708-014-0323-9

Abstract: Accurate modeling and parameters of high voltage (HV) grid are critical for stability research of system frequencyIn this paper, simulation modeling of the system frequency was conducted of an interconnected power system

Keywords： high voltage (HV) grid     frequency stability parameter identification     primary frequency regulation (PFR    

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Design and analysis of a new high frequency double-servo direct drive rotary valve

Muzhi ZHU,Shengdun ZHAO,Jingxiang LI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 344-350 doi: 10.1007/s11465-016-0406-x

Abstract: investigated direct drive valve for many years to solve problems, such as fluid force imbalance and switching frequencyThis paper studied the high frequency double-servo direct drive rotary valve (DDRV), and proposed a novelstructure and drive method satisfying high reversing frequency and adequate quantity of flow.addition, a computational fluid dynamics (CFD) method based on Fluent was conducted to verify the flux regulation

Keywords： direct drive rotary valve     computational fluid dynamics (CFD)     flow regulation    

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Internal incentives and operations strategies for the water-saving supply chain with cap-and-trade regulation

Zhisong CHEN, Li FANG, Huimin WANG

Frontiers of Engineering Management 2019, Volume 6, Issue 1,   Pages 87-101 doi: 10.1007/s42524-019-0006-7

Abstract: 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 regulationimprove the operational performance of the water-saving supply chain. (3) The implementation of CAT regulationadopting coordination strategy by the water-saving supply chain would be superior to any other scenarios/strategiesperformance for the manufacturer and water-saving supply chain, both under the equilibrium and coordination strategies

Keywords： water-saving supply chain     equilibrium     coordination     internal incentive     cap and trade regulation    

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Strategies for Water Resources Regulation and Water Environment Protection in Beijing–Tianjin–Hebei Region

Cao Xiaofeng , Hu Chengzhi, Qi Weixiao, Zheng Hua, Shan Baoqing, Zhao Yong, Qu Jiuhui

Strategic Study of CAE 2019, Volume 21, Issue 5,   Pages 130-136 doi: 10.15302/J-SSCAE-2019.05.008

Abstract: In this paper, the status quo of and challenges for water resources regulation and water environmentprotection in the Beijing–Tianjin–Hebei region are analyzed, and corresponding strategies

Keywords： Beijing–Tianjin–Hebei region     water resources and water environment     regulation and security    

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Moving policy and regulation forward for single-use plastic alternatives

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-021-1423-5

Abstract: Single-use plastics are often used once or cannot be reused for extended periods. They are widely consumed with the rapid development of social economy. The waste generated by single-use plastics threatens ecosystem health by entering the environment and ultimately restricts sustainable human development. The innovation of sustainable and environmentally friendly single-use plastic alternative materials and the joint participation of governments, enterprises and the public are promising technologies and management approaches that can solve the problem of single-use plastics wastes. The development of single-use plastic alternative products can be promoted fundamentally only by improving relevant legislation and standards, providing differentiated industrial policies, encouraging scientific and technological innovation and expanding public participation.

Keywords： Single-use plastic alternatives     Policy     Regulation     Sustainable development    

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Phase transition regulation and caloric effect

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 463-477 doi: 10.1007/s11708-023-0860-1

Abstract: Solid state refrigeration based on caloric effect is regarded as a potential candidate for replacing vapor-compression refrigeration. Numerous methods have been proposed to optimize the refrigeration properties of caloric materials, of which single field tuning as a relatively simple way has been systemically studied. However, single field tuning with few tunable parameters usually obtains an excellent performance in one specific aspect at the cost of worsening the performance in other aspects, like attaining a large caloric effect with narrowing the transition temperature range and introducing hysteresis. Because of the shortcomings of the caloric effect driven by a single field, multifield tuning on multicaloric materials that have a coupling between different ferro-orders came into view. This review mainly focuses on recent studies that apply this method to improve the cooling performance of materials, consisting of enlarging caloric effects, reducing hysteresis losses, adjusting transition temperatures, and widening transition temperature spans, which indicate that further progress can be made in the application of this method. Furthermore, research on the sign of lattice and spin contributions to the magnetocaloric effect found new phonon evolution mechanisms, calling for more attention on multicaloric effects. Other progress including improving cyclability of FeRh alloys by introducing second phases and realizing a large reversible barocaloric effect by hybridizing carbon chains and inorganic groups is described in brief.

Keywords： phase transition regulation     caloric effect     solid state refrigeration    

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The function and regulation of OTU deubiquitinases

Jiansen Du, Lin Fu, Yingli Sui, Lingqiang Zhang

Frontiers of Medicine 2020, Volume 14, Issue 5,   Pages 542-563 doi: 10.1007/s11684-019-0734-4

Abstract: character, structure and function of OTUs, such as the substrate specificity and catalytic activity regulation

Keywords： ubiquitin     OTU deubiquitinases     structure     function     regulation    

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New situations，new problems and new harnessing strategies for the lower Yellow River

Qi Pu,Sun Zanying,Qi Honghai

Strategic Study of CAE 2014, Volume 16, Issue 8,   Pages 64-68

Abstract: In the middle reach，improve the flood and sediment regulation system centered on Xiaolangdi Reservoir

Keywords： Xiaolangdi reservoir     scour channel     two banks training     efficient sediment transport     improve the sediment regulation    

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RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETIC

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 2,

Abstract: factors such as transcription factors (TFs) and epigenetic modifications also play vital role in the regulation

Keywords： climacteric fruit ripening / phytohormones / TFs / epigenetic modifications    

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Molecular regulation and genetic improvement of seed oil content in

Wei HUA,Jing LIU,Hanzhong WANG

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 3,   Pages 186-194 doi: 10.15302/J-FASE-2016107

Abstract: In this review, we present current progress in understanding of the regulation of oil content in , includinggenetics, biosynthesis pathway, transcriptional regulation, maternal effects and QTL analysis.

Keywords： breeding     maternal effects     oilseed rape     QTL    

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Regulation of exogenous bFGF gene mediated by recombinant adeno-associated virus

Ke SONG, Nianjing RAO, Meiling CHEN, Yingguang CAO

Frontiers of Medicine 2009, Volume 3, Issue 2,   Pages 158-163 doi: 10.1007/s11684-009-0042-5

Abstract: The regulatory effect of basic fibroblast growth factor (bFGF) mediated by recombinant adeno-associated virus (AAV) was investigated. Recombinant plasmid pAAV-S3-bFGF, and pSVneo were co-transfected into BHK-21 cells, then the recombinant AAV genome was replicated and packaged with the helper virus HSV1-rc/ΔUL2. The titer of the recombinant rAAV2-tet-off-bFGF was determined by dot-blot assay. MC3T3-E1 cells were infected with rAAV2-tet-off-bFGF. Regulatory effects of Doxycycline (Dox) on bFGF and osteogenic factors were assayed quantitatively by real-time reverse transcription-polymerase chain reaction (RT-PCR) and Western blot. The physical particle titer of rAAV2-tet-off-bFGF successfully constructed was 1.8×10 vector genomes/mL, and the virus could infect MC3T3-E1 cells effectively. In MC3T3-E1 cells treated with Dox, the expression levels of exogenous bFGF and osteogenic factors declined to varying degrees. It was concluded that rAAV2-tet-off-bFGF could infect MC3T3 cells efficiently, and this recombinant system could be regulated successfully by Dox .

Keywords： tetracycline regulatory system     adeno-associated virus     basic fibroblast growth factor     gene regulation    

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RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETIC

Yinglin JI, Mingyang XU, Aide WANG

Frontiers of Agricultural Science and Engineering   Pages 314-334 doi: 10.15302/J-FASE-2021386

Abstract: factors such as transcription factors (TFs) and epigenetic modifications also play vital role in the regulation

Keywords： climacteric fruit ripening     phytohormones     TFs     epigenetic modifications    

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Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linear

Frontiers of Engineering Management   Pages 452-461 doi: 10.1007/s42524-022-0209-1

Abstract: input–output (MRIO) model with linear programming (LP) model to explore economic structure adjustment strategiesA particular feature of this study is the identification of the optimal regulation sequence of finalNevertheless, certain demand side regulation strategy can be adopted to lower CO2 emissions

Keywords： CO2 emissions     demand side regulation     multi-regional input–output model     linear programming    

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Title Author Date Type Operation

A comprehensive review of wind power based power system frequency regulation

Journal Article

Load frequency control in deregulated power system with wind integrated system using fuzzy controller

Yajvender Pal VERMA, Ashwani KUMAR

Journal Article

Parameter identification of interconnected power system frequency after trip-out of high voltage transmission

Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG

Journal Article

Design and analysis of a new high frequency double-servo direct drive rotary valve

Muzhi ZHU,Shengdun ZHAO,Jingxiang LI

Journal Article

Internal incentives and operations strategies for the water-saving supply chain with cap-and-trade regulation

Zhisong CHEN, Li FANG, Huimin WANG

Journal Article

Strategies for Water Resources Regulation and Water Environment Protection in Beijing–Tianjin–Hebei Region

Cao Xiaofeng , Hu Chengzhi, Qi Weixiao, Zheng Hua, Shan Baoqing, Zhao Yong, Qu Jiuhui

Journal Article

Moving policy and regulation forward for single-use plastic alternatives

Journal Article

Phase transition regulation and caloric effect

Journal Article

The function and regulation of OTU deubiquitinases

Jiansen Du, Lin Fu, Yingli Sui, Lingqiang Zhang

Journal Article

New situations，new problems and new harnessing strategies for the lower Yellow River

Qi Pu,Sun Zanying,Qi Honghai

Journal Article

RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETIC

Journal Article

Molecular regulation and genetic improvement of seed oil content in

Wei HUA,Jing LIU,Hanzhong WANG

Journal Article

Regulation of exogenous bFGF gene mediated by recombinant adeno-associated virus

Ke SONG, Nianjing RAO, Meiling CHEN, Yingguang CAO

Journal Article

RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETIC

Yinglin JI, Mingyang XU, Aide WANG

Journal Article

Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linear

Journal Article