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Experimental research on catalysts and their catalytic mechanism for hydrogen production by gasification of peanut shell in supercritical water

PEI Aixia, GUO Liejin, JIN Hui

Frontiers in Energy 2007, Volume 1, Issue 4, Pages 451-456 doi: 10.1007/s11708-007-0066-2

Abstract: The experimental results show that different catalysts have greatly different effects on the reactionIn addition, the catalytic mechanisms of different catalysts were analyzed, and the possible reaction

Keywords： presence Raney-Ni biomass optimization mixture possible reaction

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Layered alkali titanates (ATiO): possible uses for energy/environment issues

Frontiers in Energy 2021, Volume 15, Issue 3, Pages 631-655 doi: 10.1007/s11708-021-0776-6

Abstract: Recent development of various synthetic methods (solid-state reaction, flux method, and hydrothermalreaction) for controlling the particle shape and size of layered alkali titanates are discussed.These possible materials design made layered alkali titanates promising for energy (including catalysis

Keywords： layered alkali titanates photocatalysis hydrogen evdution metal ions collection

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Antioxidative potential of metformin: Possible protective mechanism against generating OH radicals

Huibin Guo, Ning Wang, Xiang Li

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1313-2

Abstract: this study, the effects of metformin on PM-induced radicals were investigated, and the antioxidation reactionAdditionally, because the initiation reaction has a high barrier, the oxidation reaction rate betweenmetformin induced by oxygen is 57.9 kcal/mol, which shows that the rate of the •OH-initiated oxidative reactionof metformin is much faster and that this reaction path occurs more easily.

Keywords： Antioxidative potential Metformin Mechanism OH radical Health protection.

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Distributed governance of Solar Radiation Management geoengineering: A possible solution to SRM’s “free-driver

Andrew LOCKLEY

Frontiers of Engineering Management 2019, Volume 6, Issue 4, Pages 551-556 doi: 10.1007/s42524-019-0055-y

Abstract: Geoengineering (deliberate climate modification) is a possible way to limit Anthropogenic Global Warming

Keywords： geoengineering Solar Radiation Management governance decentralised

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Self-etching adhesives: possible new pulp capping agents to vital pulp therapy

Chun CUI, Xiu-Neng ZHOU, Wei-Min CHEN

Frontiers of Medicine 2011, Volume 5, Issue 1, Pages 77-79 doi: 10.1007/s11684-010-0104-8

Abstract:

Pulp capping is one of the solving for keeping vital pulp in the case of dentin caries, reversible pulpitis or traumatic pulp exposure. The presence of bacteria on the cavity walls or in the pulp was the major factor that leads to the failure of pulp capping. Traditional pulp capping agent, calcium hydroxide, may not prevent microleakage. Self-etching system is a newly developed adhesive system, which could provide less microleakage and would not break down or dissolve, preventing the oral fluids and bacteria from the pulp along the cavity wall. This may reduce such clinical problems as postoperative sensitivity, secondary caries and marginal discoloration. Researches showed that some kinds of self-etching adhesives induced the mild to moderate inflammatory pulp response, with negative bacterial staining. Inclusion of antibacterial components into self-etching system, such as 12- methacryloyloxydodecylpyridinium bromide (MDPB) may inhibit bacteria and provide better clinical effects. It is speculated that using the self-etching adhesive system containing the antibacterial agent, such as MDPB, to the dental pulp directly or indirectly, may inhibit bacteria after the placement of restoration as well as residual bacteria in the cavity.

Keywords： dental pulp pulp capping self-etching adhesives antibacterial components

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Climate Intervention: Possible Impacts on Global Security and Resilience Views & Comments

Marcia McNutt

Engineering 2016, Volume 2, Issue 1, Pages 50-51 doi: 10.1016/J.ENG.2016.01.015

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Thermodynamic analysis of reaction pathways and equilibrium yields for catalytic pyrolysis of naphtha

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12, Pages 1700-1712 doi: 10.1007/s11705-022-2207-6

Abstract: Herein, for a better catalyst design and operation parameters optimization, the reaction pathways andThe results revealed that the thermodynamically favorable reaction pathways for n/iso-paraffinsThe results are thus useful as a direction for future catalyst improvements, facilitating superior reaction

Keywords： naphtha catalytic pyrolysis reaction pathway equilibrium yield

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The Mission is Possible: Fighting Sugar and Fat for a Healthier Heart

Baofeng Yang, Rui Wang

Engineering 2023, Volume 20, Issue 1, Pages 1-2 doi: 10.1016/j.eng.2022.10.003

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Possible solutions for sludge dewatering in China

Wei WANG, Yuxiang LUO, Wei QIAO,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 1, Pages 102-107 doi: 10.1007/s11783-010-0001-z

Abstract: In China, over 1.43×10 tons of dewatered sewage sludge, with 80% water content, were generated from wastewater treatment plants in 2007. About 60% of the COD removed during the wastewater treatment process becomes concentrated as sludge. Traditional disposal methods used by municipal solid waste treatment facilities, such as landfills, composting, or incineration, are unsuitable for sludge disposal because of its high water content. Disposal of sludge has therefore become a major focus of current environmental protection policies. The present status of sludge treatment and disposal methodology is introduced in this paper. Decreasing the energy consumption of sludge dewatering from 80% to 50% has been a key issue for safe and economic sludge disposal. In an analysis of sludge water distribution, thermal drying and hydrothermal conditioning processes are compared. Although thermal drying could result in an almost dry sludge, the energy consumption needed for this process is extremely high. In comparison, hydrothermal technology could achieve dewatered sewage sludge with a 50%–60% water content, which is suitable for composting, incineration, or landfill. The energy consumption of hydrothermal technology is lower than that required for thermal drying.

Keywords： sewage sludge disposal water content thermal drying hydrothermal conditioning

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Application software beyond exascale: challenges and possible trends None

Guang-wen YANG, Hao-huan FU

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 10, Pages 1267-1272 doi: 10.1631/FITEE.1800459

Abstract: Sunway TaihuLight, we provide a projection into the next decade and discuss potential challenges and possible

Keywords： Supercomputing Exascale Application

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Advance in FCC Process Reaction Chemistry

Xu Youhao and Wang Xieqing

Strategic Study of CAE 2007, Volume 9, Issue 8, Pages 6-14

Abstract: style="text-align: justify;">Faced the stringent challenge of FCC process, the multi-dimensional reactionstructure was proposed for FCC process reaction chemistry. The multi-dimension reaction structure mode was established on the basis of hydrocarbon reaction FCC process with multi-dimensional reaction structure has more production modes. The multi-dimensional reaction structure was used to successfully develop MIP process aiming at

Keywords： catalytic cracking reaction chemistry catalyst two different reaction zones multi--dimensional reaction

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Heterogeneous reaction mechanism of gaseous HNO

Nan ZHAO,Qingzhu ZHANG,Wenxing WANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0836-z

Abstract: We studied the heterogeneous reaction mechanism of gaseous HNO with solid NaCl.Water molecules induce surface reconstruction of NaCl to facilitate the reaction.This paper aimed at the heterogeneous reaction between gaseous HNO and solid NaCl.imply that water molecules induce the surface reconstruction, which is essential for the heterogeneous reaction

Keywords： Seasalt particles NaCl HNO₃ Heterogeneous reaction Reaction mechanism Density functional theory

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Possible role of power-to-heat and power-to-gas as flexible loads in German medium voltage networks

Mark KUPRAT, Martin BENDIG, Klaus PFEIFFER

Frontiers in Energy 2017, Volume 11, Issue 2, Pages 135-145 doi: 10.1007/s11708-017-0472-8

Abstract: Germany’s energy transition triggered a rapid and unilateral growth of renewable energy sources (RES) in the electricity sector. With increasing shares of intermittent RES, overcapacities during periods of strong wind and photovoltaic electricity generation occur. In the face of insufficient transmission capacities, due to an inhibited network extension, the electricity generation has to be curtailed. This curtailment of RES leads to economic losses and could be avoided through flexible loads. As an option to cope with those problems, the technologies of power-to-gas (PtG) and power-to-heat (PtH) are presented in this paper. First, the alkaline electrolyzer (AEL), polymer electrolyte membrane electrolyzer (PEMEL), and solid oxide electrolyzer cell (SOEC) are investigated regarding their operational parameters. Second, the electric boiler, electrode heating boiler, and heat pumps are considered. Ultimately, the network-supporting abilities and the potential to provide ancillary services, such as control power, load sequence operation, cold start and part load capability, are compared among one another.

Keywords： power-to-gas power-to-heat flexible loads ancillary services coherent energy systems

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Dual-reaction-center catalytic process continues Fenton’s story

Chao Lu, Kanglan Deng, Chun Hu, Lai Lyu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1261-x

Abstract: Abstract • Dual-reaction-center (DRC) system breaks through bottleneck of Fenton reaction. • UtilizationHowever, both heterogeneous and homogeneous Fenton/Fenton-like technologies follow the classical reactionSo even after a century of development, this reaction still suffers from its inherent bottlenecks inbeen focusing on studying a novel heterogeneous Fenton catalytic process, and we developed the dual-reaction-centerThe construction of the DRC and its performance in the pollutant degradation and interfacial reaction

Keywords： Dual reaction centers Fenton Pollutant utilization Electron transfer

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Effect of natural aquatic humic substances on the photodegradation of bisphenol A

ZHAN Manjun, YANG Xi, KONG Lingren, YANG Hongshen

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3, Pages 311-315 doi: 10.1007/s11783-007-0052-y

Abstract: water, but rapid photosensitized degradation in four humic substances solutions via pseudo-first-order reactionBased on the identification of ROS and the analysis of photoproduct formation, the possible phototransformation

Keywords： irradiation photoproduct deoxygenated possible phototransformation bisphenol