Discussion of “General Axisymmetric Active Earth Pressure by Method of Characteristics—Theory and Numerical Formulation” by Y. M. Cheng, Y. Y. Hu, and W. B. Wei

Liu, F. Q.; Wang, J. H.; Zhang, L. L.

doi:10.1061/(asce)1532-3641(2008)8:5(325)

Cited by 77 publications

(113 citation statements)

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“…This requires both experience and a database of ionic liquid properties [147][148][149]. For the separations discussed here (Table 4), the biphasic combinations of ionic liquids and molecular solvents were chosen based on previous research into ionic liquid phase behaviour and solvent extraction studies (also see Section 3.4) [40,42,124,125,129,[141][142][143]149].…”

Section: Solvent Selectionmentioning

confidence: 99%

Ionic Liquid–Liquid Chromatography: A New General Purpose Separation Methodology

Brown¹,

Earle

Gîlea

et al. 2017

Topics in Current Chemistry Collections

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Ionic liquids can form biphasic solvent systems with many organic solvents and water, and these solvent systems can be used in liquid-liquid separations and countercurrent chromatography. The wide range of ionic liquids that can by synthesised, with specifically tailored properties, represents a new philosophy for the separation of organic, inorganic and bio-based materials. A customised countercurrent chromatograph has been designed and constructed specifically to allow the more viscous character of ionic liquid-based solvent systems to be used in a wide variety of separations (including transition metal salts, arenes, alkenes, alkanes, bio-oils and sugars).

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Section: Solvent Selectionmentioning

confidence: 99%

Ionic Liquid–Liquid Chromatography: A New General Purpose Separation Methodology

Brown¹,

Earle

Gîlea

et al. 2017

Topics in Current Chemistry Collections

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“…However, magnesium alloys show poor ductility at ambient temperature due to their hexagonal close-packed (HCP) crystal structure and an insufficient number of operative slips [4]. Compared with the competing materials, the strength of magnesium is lower than that of steel or aluminum [5][6][7]. Therefore, the poor ductility and strength of magnesium alloys limit their wide range of applications as engineering materials.…”

Section: Introductionmentioning

confidence: 99%

A new method for grain refinement in magnesium alloy: High speed extrusion machining

Liu

Cai

Dai

2016

Materials Science and Engineering: A

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a b s t r a c tMagnesium alloys have received broad attentions in industry due to their competitive strength to density ratio, but the poor ductility and strength limit their wide range of applications as engineering materials. A novel severe plastic deformation (SPD) technique of high speed extrusion machining (HSEM) was used here. This method could improve the aforementioned disadvantages of magnesium alloys by one single processing step. In this work, systematic HSEM experiments with different chip thickness ratios were conducted for magnesium alloy AZ31B. The microstructure of the chips reveals that HSEM is an effective SPD method for attaining magnesium alloys with different grain sizes and textures. The magnesium alloy with bimodal grain size distribution has increased mechanical properties than initial sample. The electron backscatter diffraction (EBSD) analysis shows that the dynamic recrystallization (DRX) affects the grain refinement and resulting hardness in AZ31B. Based on the experimental observations, a new theoretical model is put forward to describe the effect of DRX on materials during HSEM. Compared with the experimental measurements, the theoretical model is effective to predict the mechanical property of materials after HSEM.

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“…Ionic liquids (ILs) also known as molten salts, composed of organic cations and inorganic or organic anions are liquid at approx room temperature (or by convention below 100ºC) 18 . Ionic liquids have unique properties such as negligible vapor pressure, good thermal stability, relatively low toxicity, good ultrasonic absorbing ability.…”

Section: Introductionmentioning

confidence: 99%

Application of Ionic Liquids in the Ultrasound-Assisted Extraction of Antimicrobial Compounds From the Bark of Cinnamomum Cassia

Michalczyk

Cieniecka‐Rosłonkiewicz

Cholewińska

2015

J. Chil. Chem. Soc.

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This study compares the chemical constituents of extracts from the bark of Cinnamomum cassia obtained with the use of ionic liquids and organic solvents, as well as investigates their antifungal and yeasticidal activity. The type of ionic liquid was found to play a significant role in this process. We found that the ionic liquid tris (2-hydroxyethyl) methylammonium methylsulfate is a most efficient extracting agent, superior to classical solvents such as ethanol, ethyl acetate, hexane, dichloromethane. The obtained extract revealed high antimicrobial activity against yeasts, fungi pathogenic for plants and bees, dermatophytes, filamentous moulds with similar potencies as the standard fungicides.

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Discussion of “General Axisymmetric Active Earth Pressure by Method of Characteristics—Theory and Numerical Formulation” by Y. M. Cheng, Y. Y. Hu, and W. B. Wei

Cited by 77 publications

References 0 publications

Ionic Liquid–Liquid Chromatography: A New General Purpose Separation Methodology

Ionic Liquid–Liquid Chromatography: A New General Purpose Separation Methodology

A new method for grain refinement in magnesium alloy: High speed extrusion machining

Application of Ionic Liquids in the Ultrasound-Assisted Extraction of Antimicrobial Compounds From the Bark of Cinnamomum Cassia

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