Resource Type

Journal Article 611

Conference Videos 4

Year

2024 1

2023 83

2022 69

2021 89

2020 46

2019 28

2018 31

2017 41

2016 28

2015 22

2014 24

2013 27

2012 21

2011 15

2010 17

2009 21

2008 6

2007 9

2006 8

2005 1

open ︾

Keywords

CO2 capture 19

PM2.5 16

TiO2 14

photocatalysis 10

CO2 9

Al2O3 7

CO2 emissions 7

Photocatalysis 6

adsorption 5

H2S 4

MnO2 4

N2O 4

methane 4

Adsorption 3

MoS2 3

NOx 3

carrier 3

catalyst 3

supercritical CO2 3

open ︾

Search scope:

排序： Display mode:

A Study on Resource Fairness Scheduling Algorithms forthe OFDMA Systems

Zhang Dongmei,Chen Youyun,Cai Yueming

Strategic Study of CAE 2007, Volume 9, Issue 6,   Pages 77-81

Abstract:

The paper studied the radio resource fairness scheduling for Orthogonal Frequency Division Multiplexing Multiple Access (OFDMA) systems which was supporting several different services. After deeply analyzing a classical resource scheduling algorithm,  which maximize the worst user's capacity,  an improved algorithm which can evidently enhance the fairness performance was proposed.  Simulation results show that the improved algorithm can keep a better fairness performance under different application environment,  and can more strictly guarantee the required data rate for different service.

Keywords： OFDMA     radio resource scheduling     sub-carrier allocation     power allocation    

HTML PDF Collect

Reduction kinetics of SrFeO/CaO∙MnO nanocomposite as effective oxygen carrier for chemical looping partial

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1726-1734 doi: 10.1007/s11705-022-2188-5

Abstract: In this work, the kinetics of SrFeO<sub>3−δsub>–CaO∙MnO nanocomposite reduction by methane was

Keywords： chemical looping reforming     SrFeO<sub>3−δsub>/CaO·MnO nanocomposite     reduction kinetics     Avrami–Erofeyev    

HTML PDF Collect

PSS sorbents for removing trace hydrogen sulfide in methane

Limei ZHONG, Li ZHOU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 339-342 doi: 10.1007/s11705-010-0569-7

Abstract: The sorbents consist of adsorbent carrier (silica gel or activated carbon) and absorbent which spreadsoutside the carrier granules’ pores (triethanolamine, TEA or -methyl-2-pyrrolidone, NMP).The results of breakthrough and regeneration tests show that silica gel is more suitable to be the carrierAnd the BET tests indicate that the absorbent deposits on the surface of the carrier’s pores and can

Keywords： pressure swing sorption     H<sub>2sub>S     methane     carrier     absorbent    

HTML PDF Collect

SiO<sub>2sub> passivation layer grown by liquid phase deposition for silicon solar cell application

Yanlin CHEN,Sihua ZHONG,Miao TAN,Wenzhong SHEN

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 52-59 doi: 10.1007/s11708-016-0429-3

Abstract: important roles in outstanding passivation effect of the LPD SiO film through analyzing the minority carrier

Keywords： Si solar cell     passivation     SiO<sub>2sub>     liquid phase deposition     carrier lifetime    

HTML PDF Collect

Mature

Giorgia De Guido, Matteo Compagnoni, Laura A. Pellegrini, Ilenia Rossetti

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 315-325 doi: 10.1007/s11705-017-1698-z

Abstract: The key issue for the CLC process is to find a suitable oxygen carrier, which provides the fuel with

Keywords： CO<sub>2sub> capture     monoethanolamine     chemical looping combustion     oxygen carrier     perovskites    

HTML PDF Collect

Review on design and evaluation of environmental photocatalysts

Xin Li, Jun Xie, Chuanjia Jiang, Jiaguo Yu, Pengyi Zhang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1076-1

Abstract:

Charge carrier dynamics for the photocatalytic

The mechanism aspects, including O<sub>2sub

Keywords： Photocatalytic degradation     Environmental remediation     Charge carrier dynamics     Reactive oxygen species     O<sub>2sub> reduction    

HTML PDF Collect

Visible-light-driven heterostructured g-CN/Bi-TiO floating photocatalyst with enhanced charge carrier

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1417-3

Abstract:

• Bi doping in TiO<sub>2sub> enhanced the separation of photo-generated

Keywords： Bi doping     Visible light     Algal removal     Charge carrier separation    

HTML PDF Collect

Charge-carrier photogeneration and extraction dynamics of polymer solar cells probed by a transient photocurrent

Boa Jin, Hyunmin Park, Yang Liu, Leijing Liu, Jongdeok An, Wenjing Tian, Chan Im

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1,   Pages 164-179 doi: 10.1007/s11705-020-1976-z

Abstract: photogenerated charge carriers within polymer-based bulk-heterojunction-type solar cells, the charge-carriercarriers, the external quantum efficiencies as well as the extraction quantum efficiencies of the charge-carrierSubsequently, the charge-carrier concentration-dependent mobility values were obtained, and they arediscussed in consideration of the additional influences of the charge-carrier losses from the deviceduring the charge-carrier extraction that also affects the photocurrent-trace shape.

Keywords： charge-carrier photogeneration     transient photocurrent     polymer solar cells     charge-carrier extraction     space    

HTML PDF Collect

Multi-objective genetic algorithms based structural optimization and experimental investigation of the planet carrier

Pengxing YI,Lijian DONG,Tielin SHI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 354-367 doi: 10.1007/s11465-014-0319-5

Abstract:

To improve the dynamic performance and reduce the weight of the planet carrier in wind turbine gearboxFirstly, the design points’ distribution for the design variables of the planet carrier is establishedAs well, this method is applied to design and optimize the planet carrier in a 1.5 MW wind turbine gearboxCompared with the original design, the mass and the stress of the optimized planet carrier are respectivelyConsequently, the cost of planet carrier is greatly reduced and its stability is also improved.

Keywords： planet carrier     multi-objective optimization     genetic algorithms     wind turbine gearbox     modal experiment    

HTML PDF Collect

Achieving air pollutant emission reduction targets with minimum abatement costs: An enterprise-level allocation

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1459-6

Abstract:

• Quantification of efficiency and fairness of abatement allocation

Keywords： Pollutant emission reduction allocation     Emission reduction measures     Total abatement cost     Economic    

HTML PDF Collect

Effects of carrier-attached biofilm on oxygen transfer efficiency in a moving bed biofilm reactor

Yanling WEI,Xunfei YIN,Lu QI,Hongchen WANG,Yiwei GONG,Yaqian LUO

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 569-577 doi: 10.1007/s11783-015-0822-x

Abstract: Three laboratory-scale moving bed biofilm reactors (MBBR) with different carrier filling ratios rangingfrom 40% to 60% were used to study the effects of carrier-attached biofilm on oxygen transfer efficiencyThese results were compared to αSOTE of wastewater with a clean carrier (no biofilm attached).conditions, αSOTE decreased by approximately 70% as compared to αSOTE of wastewater at a different carrier-fillingThis indicated that the biofilm attached to the carrier had a negative effect on αSOTE.

Keywords： carrier     biofilm     oxygen transfer efficiency     moving bed biofilm reactor    

HTML PDF Collect

Effects of BTA2 as the third component on the charge carrier generation and recombination behavior of

Leijing Liu, Hao Zhang, Bo Xiao, Yang Liu, Bin Xu, Chen Wang, Shanpeng Wen, Erjun Zhou, Gang Chen, Chan Im, Wenjing Tian

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1,   Pages 127-137 doi: 10.1007/s11705-020-1936-7

Abstract: Effects of a benzotriazole (BTA)-based small molecule, BTA2, as the third component on the charge carrieraggravates the phase separation between the donor and the acceptor, which is disadvantageous to charge carrier

Keywords： third component     organic solar cells     charge carrier generation     charge carrier recombination     bimolecular    

HTML PDF Collect

The Integration Model of Closed-Loop Supply Chain Resource Allocation Considering Remanufacturing

Xiao-qiu Shi,Yan-yan Li,Wei Long

Frontiers of Engineering Management 2016, Volume 3, Issue 2,   Pages 132-135 doi: 10.15302/J-FEM-2016026

Abstract: integration model of materials requirement planning and distribution resource planning which is a resource allocationIt is a technology of satisfying both production material supply and resource allocation optimizationof reverse logistics of remanufacturing supply chain, we propose a closed-loop supply chain resource allocationWe focus on integration resource allocation model of materials requirement planning and distribution

Keywords： remanufacturing     supply chain     reverse logistics     resource allocation     integration model    

HTML PDF Collect

Benefit-based cost allocation for residentially distributed photovoltaic systems in China: A cooperative

Xi LUO, Xiaojun LIU, Yanfeng LIU, Jiaping LIU, Yaxing WANG

Frontiers of Engineering Management 2021, Volume 8, Issue 2,   Pages 271-283 doi: 10.1007/s42524-019-0083-7

Abstract: Distributed photovoltaic (PV) systems have constantly been the key to achieve a low-carbon economy in China. However, the development of Chinese distributed PV systems has failed to meet expectations because of their irrational profit and cost allocations. In this study, the methodology for calculating the levelized cost of energy (LCOE) for PV is thoroughly discussed to address this issue. A mixed-integer linear programming model is built to determine the optimal system operation strategy with a benefit analysis. An externality-corrected mathematical model based on Shapley value is established to allocate the cost of distributed PV systems in 15 Chinese cities between the government, utility grid and residents. Results show that (i) an inverse relationship exists between the LCOEs and solar radiation levels; (ii) the government and residents gain extra benefits from the utility grid through net metering policies, and the utility grid should be the highly subsidized participant; (iii) the percentage of cost assigned to the utility grid and government should increase with the expansion of battery bank to weaken the impact of demand response on increasing theoretical subsidies; and (iv) apart from the LCOE, the local residential electricity prices remarkably impact the subsidy calculation results.

Keywords： solar photovoltaic     cost allocation     cooperative game theory     Shapley value     mixed-integer linear programming    

HTML PDF Collect

A holistic approach for evaluating ecological water allocation in the Yellow River Basin of China

YANG Zhifeng, CUI Baoshan, CHEN He

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 99-106 doi: 10.1007/s11783-007-0019-z

Abstract: The characteristics and sustainable management of water resources on a basin scale require that they should be managed using a holistic approach. In this study, a holistic methodology called the holistic approach in a basin scale (HABS) is proposed to determine the ecological water requirements of a whole basin. There are three principles in HABS. First, ecological water requirements in a basin scale indicate not only the coupling of hydrological and ecological systems, but also the exchange of matter and energy between each ecological type through all kinds of physical geography processes. Second, ecological water requirements can be divided into different types according to their functions, and water requirements of different types are compatible. Third, ecological water requirements are related to a multiple system including water quality, water quantity, and time and space, which interact with each other. The holistic approach in a basin scale was then used in the Yellow River Basin and it suggested that 265.0 × 10 m of water, 45% of the total surface water resources, should be allocated to ecological systems, such as rivers, lakes, wetlands and cities, to sustain its function and health. The ecological water requirements of inside river systems and outside river systems were respectively 261.0 × 10 and 3.65 × 10 m.
HTML PDF Collect

Title Author Date Type Operation

A Study on Resource Fairness Scheduling Algorithms forthe OFDMA Systems

Zhang Dongmei,Chen Youyun,Cai Yueming

Journal Article

Reduction kinetics of SrFeO/CaO∙MnO nanocomposite as effective oxygen carrier for chemical looping partial

Journal Article

PSS sorbents for removing trace hydrogen sulfide in methane

Limei ZHONG, Li ZHOU

Journal Article

SiO<sub>2sub> passivation layer grown by liquid phase deposition for silicon solar cell application

Yanlin CHEN,Sihua ZHONG,Miao TAN,Wenzhong SHEN

Journal Article

Mature

Giorgia De Guido, Matteo Compagnoni, Laura A. Pellegrini, Ilenia Rossetti

Journal Article

Review on design and evaluation of environmental photocatalysts

Xin Li, Jun Xie, Chuanjia Jiang, Jiaguo Yu, Pengyi Zhang

Journal Article

Visible-light-driven heterostructured g-CN/Bi-TiO floating photocatalyst with enhanced charge carrier

Journal Article

Charge-carrier photogeneration and extraction dynamics of polymer solar cells probed by a transient photocurrent

Boa Jin, Hyunmin Park, Yang Liu, Leijing Liu, Jongdeok An, Wenjing Tian, Chan Im

Journal Article

Multi-objective genetic algorithms based structural optimization and experimental investigation of the planet carrier

Pengxing YI,Lijian DONG,Tielin SHI

Journal Article

Achieving air pollutant emission reduction targets with minimum abatement costs: An enterprise-level allocation

Journal Article

Effects of carrier-attached biofilm on oxygen transfer efficiency in a moving bed biofilm reactor

Yanling WEI,Xunfei YIN,Lu QI,Hongchen WANG,Yiwei GONG,Yaqian LUO

Journal Article

Effects of BTA2 as the third component on the charge carrier generation and recombination behavior of

Leijing Liu, Hao Zhang, Bo Xiao, Yang Liu, Bin Xu, Chen Wang, Shanpeng Wen, Erjun Zhou, Gang Chen, Chan Im, Wenjing Tian

Journal Article

The Integration Model of Closed-Loop Supply Chain Resource Allocation Considering Remanufacturing

Xiao-qiu Shi,Yan-yan Li,Wei Long

Journal Article

Benefit-based cost allocation for residentially distributed photovoltaic systems in China: A cooperative

Xi LUO, Xiaojun LIU, Yanfeng LIU, Jiaping LIU, Yaxing WANG

Journal Article

A holistic approach for evaluating ecological water allocation in the Yellow River Basin of China

YANG Zhifeng, CUI Baoshan, CHEN He

Journal Article