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H∞sub> control in the frequency domain for a semi-active floor isolation system

Yundong SHI, Tracy C BECKER, Masahiro KURATA, Masayoshi NAKASHIMA

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3, Pages 264-275 doi: 10.1007/s11709-013-0214-x

Abstract: Semi-active control with an control was adopted for the floor isolation system and a new input shapingPassive control using an oil damper was also tested for comparison.The test results show that the control effectively reduced acceleration for short period motions withThe control algorithm proved to be more advantageous than passive control because of its capacity toadjust control strategies according to the different motion frequency characteristics.

Keywords： semi-active floor isolation H∞sub> control MR damper shaping filter shaking table

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Air pollutant control and strategy in coal-fired power industry for promotion of China’s emission reduction

Weiliang WANG, Bo LI, Xuan YAO, Junfu LYU, Weidou NI

Frontiers in Energy 2019, Volume 13, Issue 2, Pages 307-316 doi: 10.1007/s11708-019-0620-4

Abstract: Based on a brief review of the development of emission control in China’s coal-fired power industry,the affecting mechanism among the development of installed capacities of emission control device, pollutantferrous metals smelting and processing; and controlling other heavy metal by consulting the method of Hg control

Keywords： coal-fired power industry energy intensive industries pollutant emission control NOxsub> SO2sub> soot

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Experimental study on the CO2sub> foam injecting way of profile control and flooding in heterogeneous

Zhao Jinsheng,Tan Junling,Gu Zhengfu,Liu Xiaochun

Strategic Study of CAE 2012, Volume 14, Issue 11, Pages 88-93

Abstract:

Aiming at the characteristic of the formation water of Huaqing Chang 6 reservoir and taking the comprehensive foaming ability as evaluation index, 6 foaming agents were optimized. ZY-1 foaming agent was the optimal foaming agent, and the optimal foaming agent concentration and foam stabilizer concentration were 0.5 % and 764 mg/L respectively. On the basis of the foaming agent optimization result, using parallel cores with approximate permeability contrast，CO2 foam flooding experiment was simulated through 2 injection way. The experiment result showed that underground foaming way, CO2 and the foaming agent injected alternately, had higher plugging differential pressure and better displacement efficiency. The optimal injection slug combination was first 0.2 PV (pore volume) foaming agent solution and then 0.4 PV CO2 gas, and the total injected volume was 0.6 PV.

Keywords： heterogeneous reservoirs CO2sub> foam profile control and flooding injection parameter experimental

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Size and shape effects of MnFeO nanoparticles as catalysts for reductive degradation of dye pollutants

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, Pages 108-171 doi: 10.1007/s11783-021-1396-4

Abstract: Herein, we successfully synthesized three kinds of MnFe2sub>O4sub> NPs with distinctiveIt was found that the catalytic activities were dependent on the size and shape of the MnFe2sub>O4sub> NPs and highly related to the surface-to-volume ratio and atom arrangements.Furthermore, the MnFe2sub>O4sub> NPs could be readily recovered by a magnet and reusedThe size and shape effects of MnFe2sub>O4sub> nanoparticles demonstrated in this work not

Keywords： Dye degradation MnFe2sub>O4sub> nanoparticles Size and shape-control

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PM10sub> emissions from industrial coal-fired chain-grate boilers

Xinghua Li, Junzan Han, Lei Duan

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0966-y

Abstract: determine mass and number size distributions of PM at the inlet and the outlet of the particulate emission controlTheir average collection efficiencies for sub-micron particle and super-micron particle are 34% and 78%

Keywords： coal-fired chain-grate boiler PM10sub> size distribution particulate emission control devices

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Temperature control of transfer roller’s bearing based on finite element analysis

Peng ZHANG, Yourong LI, Han XIAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2, Pages 215-218 doi: 10.1007/s11465-009-0026-9

Abstract: Second, the sub-model of the fixed end bearing is built and the boundary condition of the sub-model isThe analysis result of the sub-model shows that the temperature of the transfer roller bearing exceeds

Keywords： transfer roller bearing finite element analysis sub-model temperature control

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Obstacle-circumventing adaptive control of a four-wheeled mobile robot subjected to motion uncertainties

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0753-3

Abstract: collision-free trajectory tracking of the four-wheeled mobile robot (FMR), existing methods resolve the tracking controlTo address this challenge, this paper proposes an obstacle-circumventing adaptive control (OCAC) frameworkSpecifically, a novel anti-disturbance terminal slide mode control with adaptive gains is formulated,incorporating specified control laws for different stages.By introducing sub-target points, a new sub-target dynamic tracking regression obstacle avoidance strategy

Keywords： four-wheeled mobile robot obstacle-circumventing adaptive control adaptive anti-disturbance terminalsliding mode control sub-target dynamic tracking regression obstacle avoidance

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Estimating the effects of meteorology on PM

Liu YANG, Ye WU, Jerry M. DAVIS, Jiming HAO

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3, Pages 331-341 doi: 10.1007/s11783-011-0307-5

Abstract: To ensure good air quality for the Games, several temporary emission control measures were implementedfield monitoring at a roadside site was conducted to evaluate the effects of meteorology and emission controlThe hourly data set was divided into two time periods, the no control period, June 22nd to July 4th,and the control period, July 28th to August 21st.Wind direction was not a significant predictor of PM levels in either the control or the no control

Keywords： meteorology emission control measures Beijing Olympic Games PM2.5sub> linear statistical models

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Carbon dioxide industrial chain born in desert control—a case from Mau Us Thermoelectric factory“three-carbon

Li Jinglu

Strategic Study of CAE 2011, Volume 13, Issue 2, Pages 63-65

Abstract: quot; is introduced in this article which includes three parts: planting sandy shrub to prevent and controlThe three parts are also correspondingly the process of CO2sub> absorption, carbon emission reductionThis chain makes the farmers initiatively plant shrubs in sand, and desert control turns to easy thingThis industrial chain will contribute to our national desert control strategy.

Keywords： biomass electricity generation beneficial desert control three-carbon economy climate change

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Ground-based Hyperspectral Stereoscopic Remote Sensing Network: A Promising Strategy to Learn Coordinated Controlof O3sub> and PM2.5sub> over China Article

Cheng Liu, Chengzhi Xing, Qihou Hu, Qihua Li, Haoran Liu, Qianqian Hong, Wei Tan, Xiangguang Ji, Hua Lin, Chuan Lu, Jinan Lin, Hanyang Liu, Shaocong Wei, Jian Chen, Kunpeng Yang, Shuntian Wang, Ting Liu, Yujia Chen

Engineering 2022, Volume 19, Issue 12, Pages 71-83 doi: 10.1016/j.eng.2021.02.019

Abstract:

With the coming of the “14th Five-Year Plan”, the coordinated control of particulate mattera major issue of air pollution prevention and control in China.to achieve coordinated control.>2.5sub> and O3sub> simultaneously and support air quality control.This monitoring network provides a significant opportunity for the regional coordinated control of PM

Keywords： MAX-DOAS Stereoscopic monitoring Regional transport Ozone production Control strategy

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Spatial and Temporal Variations in the Atmospheric Age Distribution of Primary and Secondary Inorganic Aerosols in China Article

Xiaodong Xie, Qi Ying, Hongliang Zhang, Jianlin Hu,

Engineering 2023, Volume 28, Issue 9, Pages 117-129 doi: 10.1016/j.eng.2022.03.013

Abstract: simulation of the age distributions of the primary and secondary inorganic fine particulate matter (PM2.5sub>) components was conducted over China using an age-resolved Community Multiscale Air QualityThe results indicate that primary PM2.5sub> (PPM) and ammonium mainly originate from fresh localThe age information of PM2.5sub>, provided by the age-resolved CMAQ model, can help policymakersdesign effective emergent emission control measures to eliminate severe haze episodes.

Keywords： Atmospheric age PM2.5sub> CMAQ model Control strategy

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Design and operational considerations for selective catalytic reduction technologies at coal-fired boilers

Jeremy J. SCHREIFELS, Shuxiao WANG, Jiming HAO

Frontiers in Energy 2012, Volume 6, Issue 1, Pages 98-105 doi: 10.1007/s11708-012-0171-4

Abstract: these growing emissions, the Ministry of Environmental Protection (MEP) has introduced new NO emission control

Keywords： nitrogen oxides (NOxsub>) coal selective catalytic reduction (SCR) air pollutioncontrol

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The abatement of major pollutants in air and water by environmental catalysis

Junhua LI, Hong HE, Chun HU, Jincai ZHAO

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3, Pages 302-325 doi: 10.1007/s11783-013-0511-6

Abstract: For air pollution control, the selective catalytic reduction of NO (SCR) by ammonia and hydrocarbons

Keywords： air pollution control wastewater treatment DeNOxsub> selective catalytic reduction

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Rh2sub>O3sub>/hexagonal CePO4sub> nanocatalysts for N2sub>O decomposition

Huan Liu, Zhen Ma

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4, Pages 586-593 doi: 10.1007/s11705-017-1659-6

Abstract: Hexagonal CePO nanorods were prepared by a precipitation method and hexagonal CePO nanowires were prepared by hydrothermal synthesis at 150 °C. Rh(NO ) was then used as a precursor for the impregnation of Rh O onto these CePO materials. The Rh O supported on the CePO nanowires was much more active for the catalytic decomposition of N O than the Rh O supported on CePO nanorods. The stability of both catalysts as a function of time on stream was studied and the influence of the co-feed (CO , O , H O or O /H O) on the N O decomposition was also investigated. The samples were characterized by N adsorption-desorption, inductively coupled plasma optical emission spectroscopy, X-ray diffraction, transmission electron microscopy, X-ray photoelectron microscopy, hydrogen temperature-programmed reduction, oxygen temperature-programmed desorption, and CO temperature-programmed desorption in order to correlate the physicochemical and catalytic properties.

Keywords： Rh2sub>O3sub> CePO4sub> N2sub>O decomposition

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CO2sub> methanation and co-methanation of CO and CO2sub> over Mn-promoted Ni/Al2sub>O3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2, Pages 273-280 doi: 10.1007/s11705-016-1563-5

Abstract: A series of Mn-promoted 15 wt-% Ni/Al O catalysts were prepared by an incipient wetness impregnation method. The effect of the Mn content on the activity of the Ni/Al O catalysts for CO methanation and the co-methanation of CO and CO in a fixed-bed reactor was investigated. The catalysts were characterized by N physisorption, hydrogen temperature-programmed reduction and desorption, carbon dioxide temperature-programmed desorption, X-ray diffraction and high-resolution transmission electron microscopy. The presence of Mn increased the number of CO adsorption sites and inhibited Ni particle agglomeration due to improved Ni dispersion and weakened interactions between the nickel species and the support. The Mn-promoted 15 wt-% Ni/Al O catalysts had improved CO methanation activity especially at low temperatures (250 to 400 °C). The Mn content was varied from 0.86% to 2.54% and the best CO conversion was achieved with the 1.71Mn-Ni/Al O catalyst. The co-methanation tests on the 1.71Mn-Ni/Al O catalyst indicated that adding Mn markedly enhanced the CO methanation activity especially at low temperatures but it had little influence on the CO methanation performance. CO methanation was more sensitive to the reaction temperature and the space velocity than the CO methanation in the co-methanation process.

Keywords： Mn promotion nickel catalysts CO2sub> methanation co-methanation of CO and CO2sub>

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Title Author Date Type Operation

H∞sub> control in the frequency domain for a semi-active floor isolation system

Yundong SHI, Tracy C BECKER, Masahiro KURATA, Masayoshi NAKASHIMA

Journal Article

Air pollutant control and strategy in coal-fired power industry for promotion of China’s emission reduction

Weiliang WANG, Bo LI, Xuan YAO, Junfu LYU, Weidou NI

Journal Article

Experimental study on the CO2sub> foam injecting way of profile control and flooding in heterogeneous

Zhao Jinsheng,Tan Junling,Gu Zhengfu,Liu Xiaochun

Journal Article

Size and shape effects of MnFeO nanoparticles as catalysts for reductive degradation of dye pollutants

Journal Article

PM10sub> emissions from industrial coal-fired chain-grate boilers

Xinghua Li, Junzan Han, Lei Duan

Journal Article

Temperature control of transfer roller’s bearing based on finite element analysis

Peng ZHANG, Yourong LI, Han XIAO

Journal Article

Obstacle-circumventing adaptive control of a four-wheeled mobile robot subjected to motion uncertainties

Journal Article

Estimating the effects of meteorology on PM

Liu YANG, Ye WU, Jerry M. DAVIS, Jiming HAO

Journal Article

Carbon dioxide industrial chain born in desert control—a case from Mau Us Thermoelectric factory“three-carbon

Li Jinglu

Journal Article

Ground-based Hyperspectral Stereoscopic Remote Sensing Network: A Promising Strategy to Learn Coordinated Controlof O3sub> and PM2.5sub> over China

Journal Article

Spatial and Temporal Variations in the Atmospheric Age Distribution of Primary and Secondary Inorganic Aerosols in China

Xiaodong Xie, Qi Ying, Hongliang Zhang, Jianlin Hu,

Journal Article

Design and operational considerations for selective catalytic reduction technologies at coal-fired boilers

Jeremy J. SCHREIFELS, Shuxiao WANG, Jiming HAO

Journal Article

The abatement of major pollutants in air and water by environmental catalysis

Junhua LI, Hong HE, Chun HU, Jincai ZHAO

Journal Article

Rh2sub>O3sub>/hexagonal CePO4sub> nanocatalysts for N2sub>O decomposition

Huan Liu, Zhen Ma

Journal Article

CO2sub> methanation and co-methanation of CO and CO2sub> over Mn-promoted Ni/Al2sub>O3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Journal Article

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