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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.However, 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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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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Evaluation method of multiaxial low cycle fatigue life for cubic single crystal material

CHEN Jiping, DING Zhiping

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 278-282 doi: 10.1007/s11465-007-0048-0

Abstract: By taking account of the coupling effects, formulas of equivalent stress and strain for cubic single crystalOn the basis of the yield criterion and constitutive model of cubic single crystal materials, a subroutineLow cycle fatigue test data of the single crystal nickel-based superalloy are used to fit the differentThe equivalent stress and strain for a cubic single crystal material as failure parameters have the largestThe model was validated with LCF test data of CMSX-2 and DD3 single crystal nickel-based superalloys.

Keywords： orthotropic     regression analysis     crystal material     multiaxial     prediction    

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LCF behavior and life prediction method of a single crystal nickel-based superalloy at high temperature

Zhihua ZHANG,Huichen YU,Chengli DONG

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 418-423 doi: 10.1007/s11465-015-0362-x

Abstract:

Low cycle fatigue tests were conducted on the single crystal nickel-based superalloy, DD6, with different

Keywords： life prediction     single crystal superalloy     low cycle fatigue (LCF)     crystallographic orientation     strain    

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Economic Growth Model Based on Six Basic Factors of Production—Xu Growth Rate Equation

Shou-bo Xu,Zong-yuan Huang

Frontiers of Engineering Management 2014, Volume 1, Issue 2,   Pages 160-175 doi: 10.15302/J-FEM-2014024

Abstract: This paper proposes an economic growth model based on the Six Basic Factors of Production and Xu GrowthRate Equation for the first time, which fills-in the deficits of the New Classical Economic Growth Modeldecades, the consumption of six basic factors of production had complicated relations with economic growthrate of the basic factors of production was meager, but the economy witnessed relatively rocketing growthrate; in some years, the factors of production consumption rate was very high, but the economy growth

Keywords： six basic factors of production     economic growth model     Xu Growth Rate Equation    

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Study on the crystal morphology and melting behavior of isothermally crystallized composites of short

Mingtao RUN, Hongzan SONG, Yanping HAO

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 255-264 doi: 10.1007/s11705-009-0008-9

Abstract: suggest that SCF content, isothermal crystallization temperatures, and the film thicknesses influence the crystalHowever, the crystal morphology of the composites depends strongly on the temperature.When the isothermal crystallization temperatures increase from 180°C to 230°C, the crystal morphology

Keywords： poly(trimethylene terephthalate)     short carbon fiber     banded spherulites     crack    

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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

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

Evaluation method of multiaxial low cycle fatigue life for cubic single crystal material

CHEN Jiping, DING Zhiping

Journal Article

LCF behavior and life prediction method of a single crystal nickel-based superalloy at high temperature

Zhihua ZHANG,Huichen YU,Chengli DONG

Journal Article

Economic Growth Model Based on Six Basic Factors of Production—Xu Growth Rate Equation

Shou-bo Xu,Zong-yuan Huang

Journal Article

Study on the crystal morphology and melting behavior of isothermally crystallized composites of short

Mingtao RUN, Hongzan SONG, Yanping HAO

Journal Article