Results 31 to 40 of about 356,339 (309)

Monomial Crystals and Partition Crystals [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2010
4 figures; v2: minor edits for clarity; v3: published ...
openaire   +6 more sources

A Study on crystallization temperature and rate of ammonium salt in the high-pressure hydrogenation heat exchanger [PDF]

open access: yesE3S Web of Conferences, 2023
Ammonium salt crystallization corrosion failure is an essential problem in the failure of high-pressure hydrogenation heat exchangers. The crystallization equilibrium curves of NH4Cl and NH4HS under different pressures were established according to the ...
Tang Zhixuan   +4 more
doaj   +1 more source

Aerobic Oil-Phase Cyclic Magnetic Adsorption to Synthesize 1D Fe2O3@TiO2 Nanotube Composites for Enhanced Visible-Light Photocatalytic Degradation

open access: yesNanomaterials, 2020
In this work, Fe2O3@TiO2 nanostructures with staggered band alignment were newly designed by an aerobic oil-phase cyclic magnetic adsorption method.
Qingqing Tao   +8 more
doaj   +1 more source

Theoretical Model and Experimental Investigations on Solution-Mediated Polymorphic Transformation of Theophylline: From Polymorph I to Polymorph II

open access: yesCrystals, 2019
In this work, theophylline was selected as the model compound to study and simulate the solution-mediated polymorphic transformation. The polymorph I and polymorph II of theophylline were prepared and fully characterized.
Manli Zhu   +6 more
doaj   +1 more source

Manipulation of Morphology, Particle Size of Barium Sulfate and the Interacting Mechanism of Methyl Glycine Diacetic Acid

open access: yesMolecules, 2023
In this paper, methyl glycine diacetic acid (MGDA) was found to have great influence on the morphology and particle size of barium sulfate. The effects of additive, concentration, value of pH and reaction temperature on the morphology and particle size ...
Jing Li   +7 more
doaj   +1 more source

Effect of Batchelor Flow on Polymorphic Crystallization in a Rotating Disk Crystallizer

open access: yesCrystals, 2021
In this work, the influence of Batchelor flow on the polymorphic crystallization in a rotating disk (RD) crystallizer was investigated. By regulating crystallization parameters, i.e., the rotation speed, cooling rate, and ethanol fraction, we found that ...
Zun-Hua Li, Jinsoo Kim, Woo-Sik Kim
doaj   +1 more source

Thermodynamics and Crystallization Behavior of Meropenem Influenced by Solvent Composition and pH

open access: yesMolecules
To develop an improved crystallization process for meropenem trihydrate, an important carbapenem antibiotic, the pH-dependent solubility of meropenem trihydrate in different solvent systems was investigated using the laser monitoring dynamic method.
Jinshen Ren   +7 more
doaj   +1 more source

Noble Metal-Free TiO2-Coated Carbon Nitride Layers for Enhanced Visible Light-Driven Photocatalysis

open access: yesNanomaterials, 2020
Composites of g-C3N4/TiO2 were one-step prepared using electron impact with dielectric barrier discharge (DBD) plasma as the electron source. Due to the low operation temperature, TiO2 by the plasma method shows higher specific surface area and smaller ...
Bo Zhang, Xiangfeng Peng, Zhao Wang
doaj   +1 more source

Influence of Foreign Salts and Antiscalants on Calcium Carbonate Crystallization

open access: yes, 2023
For more than a century, crystallization has remained a chief research topic. One of the most undesirable crystallization phenomena is the formation of calcium carbonate scale in drinking and industrial water systems.
Mohamed Mouldi Tlili, Raghda Hamdi
core   +1 more source

Crystallization of poly(butylene 2,6-naphthalate) containing diethylene 2,6-naphthalate constitutional defects

open access: yes, 2022
Art. e10044, 10 S.The effect of presence of up to 30 mol% diethylene 2,6‐naphthalate (DEN) constitutional defects on the crystallization kinetics and morphology of poly(butylene 2,6‐naphthalate) (PBN) was investigated by differential ...
Soccio, M.   +5 more
core   +1 more source

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