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Automated synthesis of steady-state continuous processes using reinforcement learning

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 288-302 doi: 10.1007/s11705-021-2055-9

Abstract: Automated flowsheet synthesis is an important field in computer-aided process engineering.The present work demonstrates how reinforcement learning can be used for automated flowsheet synthesisThe environment consists of a steady-state flowsheet simulator that contains all physical knowledge.Therein, flowsheet synthesis is modelled as a game of two competing players.

Keywords： automated process synthesis     flowsheet synthesis     artificial intelligence     machine learning     reinforcement    

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Using machine learning models to explore the solution space of large nonlinear systems underlying flowsheet

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 183-197 doi: 10.1007/s11705-021-2073-7

Abstract: Flowsheet simulations of chemical processes on an industrial scale require the solution of large systemsapply the proposed algorithm to a toy example in up to 20 dimensions and to an industrially relevant flowsheet

Keywords： machine learning     flowsheet simulations     constraints     exploration    

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Jaw Crusher With Large Reduction Ratio and the Modification of Crushing Technology

Rao Qilin

Strategic Study of CAE 2001, Volume 3, Issue 4,   Pages 82-87

Abstract: reduction ratio makes it possible to substitute the two or three stage crushing in the traditional crushing flowsheet

Keywords： cursher     large reduction ratio     simplification of flowsheet    

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Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature

Dejun SHI, Ke QIAO, Zifeng YAN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 372-375 doi: 10.1007/s11705-010-0570-1

Abstract: This result confirmed the catalytic effect of potassium carbonate on the synthesis of calcium carbide

Keywords： calcium carbide     synthesis     catalysis    

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Study on a green synthesis of

Aixin WANG, Yuanbin SHE, Jing FAN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 219-221 doi: 10.1007/s11705-009-0058-z

Abstract: A novel method for the synthesis of -oxo-bis[tetraarylporphyrinatoiron] ([TRPPFe] O) based on the reaction

Keywords： μ-oxo-bis[tetraarylphenylporphinatoiron]     green synthesis     water    

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Advantageous mechanochemical synthesis of copper(I) selenide semiconductor, characterization, and properties

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 433-442 doi: 10.1007/s11705-021-2066-6

Abstract: Copper(I) selenide-nanocrystalline semiconductor was synthesized via one-step mechanochemical synthesisThe kinetics of synthesis was followed by X-ray powder diffraction analysis and specific surface areaThis type of Cu2Se synthesis can be easily adapted to production dimensions using an industrialThe advantages of mechanochemical synthesis represent the potential for inexpensive, environmentally-friendly

Keywords： Cu2Se     berzelianite     nanocrystalline semiconductor     mechanochemical synthesis     planetary ball    

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Biomass to dimethyl ether by gasification/synthesis technology

Tiejun WANG, Yuping LI, Longlong MA, Chuangzhi WU

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 330-339 doi: 10.1007/s11708-010-0121-y

Abstract: economic analysis was done for the biomass to dimethyl ether (DME) technology to promote the gasification/synthesisThe technology of biomass gasification/synthesis has obvious advantages, including production flexibilityBiomass gasification/synthesis technology integrates bio-DME synthesis, fertilizer production, electricity

Keywords： technical and economic analysis     biomass     dimethyl ether     gasification/synthesis    

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Multi-resolution texture synthesis from turntable image sequences

Xuedong WANG, Xiaojun WU, Xiaorong ZHANG

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 72-80 doi: 10.1007/s11465-012-0305-8

Abstract:

Texture synthesis and texture mapping are important technologies for rendering realistic three-dimensionalpaper, we propose a fast method to construct high quality texture map for multi-resolution texture synthesis

Keywords： texture synthesis     multi-resolution     texture map     texture mapping    

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Kinematical synthesis of an inversion of the double linked fourbar for morphing wing applications

J. AGUIRREBEITIA, R. AVILéS, I. FERNáNDEZ, M. ABASOLO

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 17-32 doi: 10.1007/s11465-013-0364-5

Abstract: The structure of the mechanism is obtained using structural synthesis concepts, from an initial conceptualuncertainty positions are derived for this mechanism in order to face the last step, the dimensional synthesis; in this sense, two kinds of dimensional synthesis are arranged to guide the wing along two positions

Keywords： morphing wing     structural synthesis     dimensional synthesis     geometrical kinematics    

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Seed-induced synthesis of functional MFI zeolite materials: Method development, crystallization mechanisms

Zhaoqi Ye, Hongbin Zhang, Yahong Zhang, Yi Tang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 143-158 doi: 10.1007/s11705-019-1852-x

Abstract: As an important zeolite material, MFI zeolites, as well as their controllable synthesis, are of greatMoreover, on the basis of their structural features and crystallization behaviors in seed-induced synthesis

Keywords： seed-induced synthesis     MFI zeolite     synthesis mechanism     catalytic property    

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Catalytic activity of manganese oxide supported on alumina in the synthesis of quinoxalines

Rekha M., H. Kathyayini, N. Nagaraju

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 415-421 doi: 10.1007/s11705-013-1360-3

Abstract: Two catalysts, alumina and manganese oxide supported on alumina, have been prepared by calcination and precipitation-impregnation methods, respectively. The catalysts are characterised by the following techniques: Brunner-Emmett-Teller-N adsorption-desorption for surface area, temperature programmed desorption of NH and -butyl amine back titration methods for surface acidity, powder X-ray diffraction for textural properties, and Fourier transform infrared spectroscopy for the anionic radicals. The catalytic activity has been determined under heterogeneous conditions in the condensation reaction between -phenylenediamine and benzil. The product purity is checked by thin-layer chromatography and melting point. The products are also analysed by LC-MS and H-NMR techniques. The yields of the products have been found to be good and catalysts exhibited excellent recyclability. The effect of changing the reaction parameters such as temperature, reaction time, amount of the catalyst, nature of solvent and molar ratio of reactants on the yield of the product has been studied. The surface acidity of the catalysts plays an important role in activating the reaction.

Keywords： alumina     manganese oxide deposited on alumina     quinoxaline synthesis    

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dehydrogenation reaction on high-performance PdAu alloy nanoparticles prepared by the eco-friendly slow synthesis

Frontiers in Energy   Pages 751-762 doi: 10.1007/s11708-023-0895-3

Abstract: and supported on the activated carbon to form PdAu solid solution alloys via the eco-friendly slow synthesis

Keywords： FA dehydrogenation     face-centred cubic structures     PdAu solid solution alloy nanoparticles     slow synthesis    

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Effect of seawater salinity on the synthesis of zeolite from coal fly ash

Yanqing YU, Xiaoliang LI, Xiaolan ZOU, Xiaobin ZHU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 1,   Pages 54-61 doi: 10.1007/s11783-013-0493-4

Abstract: A novel method for the synthesis of zeolite was developed in this paper.The synthesis was carried out by hydrothermal activation after alkali fusion and coal fly ash (CFA) wasThe results show that seawater salinity plays an important role in zeolite synthesis with CFA duringallows for the efficient disposal of by-products; therefore, the application of seawater in zeolite synthesis

Keywords： coal fly ash (CFA)     seawater salinity     zeolite synthesis    

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Size-controlled green synthesis of silver nanoparticles assisted by L-cysteine

Wenchao Zhang,Lin Zhang,Yan Sun

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4,   Pages 494-500 doi: 10.1007/s11705-015-1527-1

Abstract: A green and size-controlled synthesis of silver nanoparticles (Ag NPs) in aqueous solution with the assistance

Keywords： nanoparticles     silver     L-cysteine     size distribution     synthesis    

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One-step synthesis of

Kuiyi YOU, Fangfang ZHAO, Xueyan LONG, Pingle LIU, Qiuhong AI, Hean LUO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 389-394 doi: 10.1007/s11705-012-1218-0

Abstract: A simple and efficient approach for the synthesis of -caprolactam via the liquid phase nitrosation of

Keywords： -caprolactam     AlVPO composite catalysts     one-step synthesis     concentrated sulfuric acid    

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Title Author Date Type Operation

Automated synthesis of steady-state continuous processes using reinforcement learning

Journal Article

Using machine learning models to explore the solution space of large nonlinear systems underlying flowsheet

Journal Article

Jaw Crusher With Large Reduction Ratio and the Modification of Crushing Technology

Rao Qilin

Journal Article

Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature

Dejun SHI, Ke QIAO, Zifeng YAN

Journal Article

Study on a green synthesis of

Aixin WANG, Yuanbin SHE, Jing FAN

Journal Article

Advantageous mechanochemical synthesis of copper(I) selenide semiconductor, characterization, and properties

Journal Article

Biomass to dimethyl ether by gasification/synthesis technology

Tiejun WANG, Yuping LI, Longlong MA, Chuangzhi WU

Journal Article

Multi-resolution texture synthesis from turntable image sequences

Xuedong WANG, Xiaojun WU, Xiaorong ZHANG

Journal Article

Kinematical synthesis of an inversion of the double linked fourbar for morphing wing applications

J. AGUIRREBEITIA, R. AVILéS, I. FERNáNDEZ, M. ABASOLO

Journal Article

Seed-induced synthesis of functional MFI zeolite materials: Method development, crystallization mechanisms

Zhaoqi Ye, Hongbin Zhang, Yahong Zhang, Yi Tang

Journal Article

Catalytic activity of manganese oxide supported on alumina in the synthesis of quinoxalines

Rekha M., H. Kathyayini, N. Nagaraju

Journal Article

dehydrogenation reaction on high-performance PdAu alloy nanoparticles prepared by the eco-friendly slow synthesis

Journal Article

Effect of seawater salinity on the synthesis of zeolite from coal fly ash

Yanqing YU, Xiaoliang LI, Xiaolan ZOU, Xiaobin ZHU

Journal Article

Size-controlled green synthesis of silver nanoparticles assisted by L-cysteine

Wenchao Zhang,Lin Zhang,Yan Sun

Journal Article

One-step synthesis of

Kuiyi YOU, Fangfang ZHAO, Xueyan LONG, Pingle LIU, Qiuhong AI, Hean LUO

Journal Article