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Theoretical insights into influence of additives on sulfamethoxazole crystal growth kinetics and mechanisms

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1503-1515 doi: 10.1007/s11705-022-2294-4

Abstract: growth kinetics was systematically investigated through density functional theory (DFT) calculationsHowever, polyethylene glycol (PEG) promoted SMX crystal growth.The effect of the polymer on the crystal growth mechanisms of SMX was further analyzed by the two-stepIn the system containing PEG 6000, crystal growth is dominated by the surface reaction.However, in the system containing PEG 20000, crystal growth is dominated by both the surface reaction

Keywords： insoluble drugs     polymer     inhibition crystallization     crystal growth kinetics     DFT calculations    

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Computer modeling of crystal growth of silicon for solar cells

Lijun LIU, Xin LIU, Zaoyang LI, Koichi KAKIMOTO

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 305-312 doi: 10.1007/s11708-011-0155-9

Abstract: A computer simulator with a global model of heat transfer during crystal growth of Si for solar cellsgrowth, while the requirement for computer resources is kept permissible for engineering applicationsA dynamic model for the melt-crystal (mc) interface is developed to predict the phase interface behaviorin a crystal growth process.growth processes and furnace designs for solar Si material.

Keywords： computer modeling     silicon     crystal growth     solar cells    

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Determination of growth kinetics of microorganisms linked with 1,4-dioxane degradation in a consortium

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-022-1567-y

Abstract:

● Evaluated three methods for determining the consortia’s growth kinetics

Keywords： Biodegradation     1     4-Dioxane     Kinetics     Microbial consortium     16S rRNA    

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roughening transition and missing regime transition of melt crystallized polybutene-1 tetragonal phase: growthkinetics analysis

Motoi YAMASHITA

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 125-134 doi: 10.1007/s11705-009-0001-3

Abstract: The morphology and lateral growth rate of polybutene-1 ( -PB1) have been investigated for crystallizationThe nucleation and growth mechanism for crystallization does not work below 85°C, since the growth faceHowever, the growth rate shows the supercooling dependence derived from the nucleation and growth mechanismThe nucleation theory seems still to work even for rough surface growth.Possible mechanisms for the crystal growth of this polymer are discussed.

Keywords： isotactic polybutene-1     tetragonal phase (form Ⅱ)     melt crystallization     growth rate     kinetic    

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Numerical investigation of the influence of kinetics and shape factor on barium sulfate precipitation

Zheng WANG, Zai-Sha MAO, Chao YANG, Qinghua ZHANG, Jingcai CHENG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 272-281 doi: 10.1007/s11705-009-0023-x

Abstract: The effect of kinetics and shape factor on barium sulfate precipitation in a continuous stirred tanksolving the standard momentum and mass transport equations in combination with the moment equations for crystalsimulation results show that the value of shape factor used in the model affected greatly the mean crystalsize and the moments of the crystal size distribution.nucleation and growth rates.

Keywords： stirred tank     numerical simulation     precipitation     shape factor     crystal kinetics    

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Kinetics of UV curable alkyl 3-mercaptopropionate-vinyl silizane

SONG Jiale, CHEN Lixin, WANG Yazhou, CHEN Weiwei, WANG Rumin

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 390-395 doi: 10.1007/s11705-008-0080-6

Abstract: vinyl-containing liquid silizane preceramic monomers copolymerized with thiol monomers, based on a step-growthThe kinetics of alkyl 3-mercptopropionate-vinyl silizane under UV irradiation is investigated by using

Keywords： step-growth     irradiation     bimolecular     preceramic     concentration photoinitiator    

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Dynamic modulation performance of ferroelectric liquid crystal polarization rotators and Mueller matrix

Song ZHANG, Lelun WANG, Anze YI, Honggang GU, Xiuguo CHEN, Hao JIANG, Shiyuan LIU

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 256-264 doi: 10.1007/s11465-019-0573-7

Abstract: A ferroelectric liquid crystal polarization rotator (FLCPR) has been widely used in polarization measurementmodulation performance of FLCPR directly affects the measurement accuracy of the instrument based on liquid crystal

Keywords： ferroelectric liquid crystal polarization rotator (FLCPR)     dual liquid crystal Mueller matrix polarizer    

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Research progress on ultra-precision machining technologies for soft-brittle crystal materials

Hang GAO,Xu WANG,Dongming GUO,Yuchuan CHEN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 77-88 doi: 10.1007/s11465-017-0411-8

Abstract:

Soft-brittle crystal materials are widely used in many fields, especially optics and microelectronics

Keywords： brittle     soft     functional crystal     ultra-precision machining    

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Lamellar thickness transition of melt-crystallized polybuten-1 tetragonal phase: configurational change in chain folding directions

Motoi YAMASHITA

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 26-32 doi: 10.1007/s11705-009-0002-2

Abstract: Lamellar crystal thickness of isotactic polybutene-1 ( -PB1) have been investigated for crystallizationThe crystal thickness demonstrates two linear dependences on inverse supercooling and a transition

Keywords： isotactic polybutene-1     tetragonal phase     crystal thickness     melt growth     chain folding     small angle X-ray    

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Crystal-to-crystal transformation from the triclinic to the cubic crystal system by partial desolvation

Qianqian Guo, Irmgard Kalf, Ulli Englert

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 433-439 doi: 10.1007/s11705-018-1743-6

Abstract:

Diffusion reaction of the labile building block Mg(acacCN)2 (acacCN= 3-cyanoacetylacetonate) with silver salts leads to a series of solvated Mg/Ag bimetallic coordination polymers with composition [Mg(acacCN)3Ag]·solvent. Despite their common stoichiometry, the topology of these polymers depends on the solvent of crystallization. The two-dimensional coordination compound [Mg(acacCN)3Ag]·4CHCl3 in space group P1‾ is obtained as platelet-shaped crystals from a mixture of methanol and chloroform. When kept in the reaction mixture, these thin plates within one week convert to isometric tetrahedral crystals of the 3D network [Mg(acacCN)3Ag]·2CHCl3 in the cubic space group P213. The transformation reaction proceeds via dissolution and recrystallization. The co-crystallized solvent molecules play an important role for stabilizing the target structure: They subtend Cl···Cl contacts and interact via non-classical C–H···O hydrogen bonds with the coordination framework. In the new cubic coordination network, both Mg(II) and Ag(I) adopt octahedral coordination, with unprecedented face-sharing by bridging O atoms of three acetylacetonato moieties. Prolonged standing of [Mg(acacCN)3Ag]·2CHCl3 in the reaction medium leads to further degradation, under formation of [Ag(acacCN)].

Keywords： ditopic ligand     substituted acetylacetone     desolvation     diffraction    

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Effect of hierarchical ZSM-5 zeolite crystal size on diffusion and catalytic performance of n-heptane

Shuman Xu, Xiaoxiao Zhang, Dangguo Cheng, Fengqiu Chen, Xiaohong Ren

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4,   Pages 780-789 doi: 10.1007/s11705-018-1733-8

Abstract: The effect of the crystal size on the catalytic cracking of -heptane was investigated and the ThieleThe crystal size affected the textual properties of the catalysts but not the acidic properties of the

Keywords： hierarchical ZSM-5     crystal size     catalytic cracking     Thiele modulus     effectiveness factor    

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Fundamental Research on Vanadium Recovering from V-bearingSteelmaking Slag

Dong Yuanchi,Wu Xingrong,Yu Liang,Li Liaosha

Strategic Study of CAE 2007, Volume 9, Issue 1,   Pages 63-68

Abstract:

The enrichment of vanadium and crystallization and growth of V-concentrating

Keywords： V-bearing steel slag     enrichment     V-concentrating phase     crystal growth     solid solution    

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Novel casting processes for single-crystal turbine blades of superalloys

Dexin MA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 3-16 doi: 10.1007/s11465-018-0475-0

Abstract:

This paper presents a brief review of the current casting techniques for single-crystal (SC) bladesIn these techniques, the heat barrier that hinders lateral SC growth from the blade airfoil into themolds are utilized, was developed to enable the establishment of a high temperature gradient for SC growthcooling and heating technique, a novel concept for the three-dimensional and precise control of SC growth, a proper thermal arrangement may be dynamically established for the microscopic control of SC growth

Keywords： superalloy     investment casting     Bridgman process     directional solidification     single crystal     turbine blade    

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Polymorphism and crystal transformation of penicillin sulfoxide

Dingding JING, Yongli WANG, Zhijian CHEN, Lina ZHOU, Jingkang WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 442-447 doi: 10.1007/s11705-011-1140-x

Abstract: In this contribution, two crystal structures of penicillin sulfoxide (forms I and II) were determinedthat penicillin sulfoxide is more stable as form I, and the temperature plays an important role in the crystal

Keywords： penicillin sulfoxide     crystallization     polymorphism     crystal transformation     Raman spectroscopy    

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Biosorption and biotransformation of crystal violet by

Tao PAN, Suizhou REN, Jun GUO, Meiying XU, Guoping SUN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 185-190 doi: 10.1007/s11783-012-0435-6

Abstract: As a common triphenylmethane dye, crystal violet (CV) was chosen to test the decolorization characteristics

Keywords： crystal violet     decolorization     biosorption     biotransformation     Aeromonas hydrophila DN322p    

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Title Author Date Type Operation

Theoretical insights into influence of additives on sulfamethoxazole crystal growth kinetics and mechanisms

Journal Article

Computer modeling of crystal growth of silicon for solar cells

Lijun LIU, Xin LIU, Zaoyang LI, Koichi KAKIMOTO

Journal Article

Determination of growth kinetics of microorganisms linked with 1,4-dioxane degradation in a consortium

Journal Article

roughening transition and missing regime transition of melt crystallized polybutene-1 tetragonal phase: growthkinetics analysis

Motoi YAMASHITA

Journal Article

Numerical investigation of the influence of kinetics and shape factor on barium sulfate precipitation

Zheng WANG, Zai-Sha MAO, Chao YANG, Qinghua ZHANG, Jingcai CHENG

Journal Article

Kinetics of UV curable alkyl 3-mercaptopropionate-vinyl silizane

SONG Jiale, CHEN Lixin, WANG Yazhou, CHEN Weiwei, WANG Rumin

Journal Article

Dynamic modulation performance of ferroelectric liquid crystal polarization rotators and Mueller matrix

Song ZHANG, Lelun WANG, Anze YI, Honggang GU, Xiuguo CHEN, Hao JIANG, Shiyuan LIU

Journal Article

Research progress on ultra-precision machining technologies for soft-brittle crystal materials

Hang GAO,Xu WANG,Dongming GUO,Yuchuan CHEN

Journal Article

Lamellar thickness transition of melt-crystallized polybuten-1 tetragonal phase: configurational change in chain folding directions

Motoi YAMASHITA

Journal Article

Crystal-to-crystal transformation from the triclinic to the cubic crystal system by partial desolvation

Qianqian Guo, Irmgard Kalf, Ulli Englert

Journal Article

Effect of hierarchical ZSM-5 zeolite crystal size on diffusion and catalytic performance of n-heptane

Shuman Xu, Xiaoxiao Zhang, Dangguo Cheng, Fengqiu Chen, Xiaohong Ren

Journal Article

Fundamental Research on Vanadium Recovering from V-bearingSteelmaking Slag

Dong Yuanchi,Wu Xingrong,Yu Liang,Li Liaosha

Journal Article

Novel casting processes for single-crystal turbine blades of superalloys

Dexin MA

Journal Article

Polymorphism and crystal transformation of penicillin sulfoxide

Dingding JING, Yongli WANG, Zhijian CHEN, Lina ZHOU, Jingkang WANG

Journal Article

Biosorption and biotransformation of crystal violet by

Tao PAN, Suizhou REN, Jun GUO, Meiying XU, Guoping SUN

Journal Article