Article
Water Resources
Wenbo Gong, Yang Liu, Wenhai Lei, Yang Ju, Moran Wang
Summary: The effect of viscous coupling on pore-scale flow capacity and macroscopic flow properties in porous media is investigated in this study. The significance of viscous coupling effect in angular pore multiphase flows is confirmed, and a scaling model incorporating the viscous coupling effect is proposed for predicting hydraulic conductance in multiphase flows through a square capillary tube.
ADVANCES IN WATER RESOURCES
(2023)
Article
Mechanics
Young H. Lee, Jingyi Wang, Ian D. Gates
Summary: We conducted experimental study on the effects of normal stress differences in the immiscible radial viscous fingering instability in a Hele-Shaw cell. The results showed that the effects were nonmonotonic and opposing, depending on the molecular weight of the displaced fluid and the stage of the fingering evolution. Decreases in molecular weight reduced the number of fingers and widened the finger width in the early stage, while increases in molecular weight promoted tip splitting and narrowed finger width in the early stage but suppressed tip splitting in the intermediate stage.
Article
Chemistry, Physical
V. P. Zhelezny, K. Yu Khanchych, I. Motovoy, A. S. Nikulina
Summary: The study investigated the viscosity of fullerene C-60 in o-xylene solutions, showing that C-60 increased the viscosity of o-xylene. The temperature and concentration dependences of viscosity, activation parameters of viscous flow, and volume fluctuations of the solutions were analyzed. It was found that solutions of o-xylene/C-60 exhibit behavior similar to that of pure o-xylene, with extreme increases in viscosity, free activation energy, activation enthalpy, and volume fluctuations near a mass concentration of 0.05% fullerene C-60.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
F. J. Rubio-Hernandez, E. Fernandez-Diaz, J. F. Velazquez-Navarro
Summary: This study investigates the influence of temperature and solid concentration on the stress-induced shear-thickening behavior of A200PPG400 suspension, and proposes a more detailed description of the shear-thickening mechanism based on the analysis of intrinsic viscosity and activation energy for the viscous flow.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Xiuping Chen, Yushuang Yang, Yihao Guan, Chengyi Luo, Mutai Bao, Yiming Li
Summary: This study developed an ecofriendly bio-based aerogel with efficient photothermal conversion ability for fast removal of heavy oil spill. The aerogel was successfully fabricated using sodium alginate as raw material and characterized for its structure, wettability, photothermal conversion ability, oil removal capability, and antibacterial ability. Results showed that the aerogel had a rich pore structure, high porosity, excellent mechanical properties, and better photothermal conversion efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Physics, Fluids & Plasmas
Francisco J. Carrillo, Ian C. Bourg
Summary: The study investigates the transition from fluid invasion to fracturing in soft porous media under various conditions, using a newly developed multiphase Darcy-Brinkman-Biot framework. Three distinct material failure regimes were identified, controlled by nondimensional numbers quantifying the balance of viscous, capillary, and structural forces. This study effectively decouples the effects of viscous and capillary forces on fracturing mechanics.
Article
Chemistry, Physical
Geert Kapteijns, David Richard, Eran Bouchbinder, Thomas B. Schroder, Jeppe C. Dyre, Edan Lerner
Summary: This study proposes a potential factor controlling the viscous slowing down, the mesoscopic elastic stiffness κ(T), and finds it increases more strongly with decreasing temperature compared to the macroscopic inherent structure shear modulus G(T). Additionally, a direct connection between the liquid's underlying mesoscopic elasticity and enthalpic energy barriers is suggested by the relation ΔE(T) proportional to κ(T) in some computer liquids. However, this relation fails in liquids with highly fragmented potential energy landscapes.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Jian Wang, Yuao Li, Xiguang Chen, Ning Wei, Jing Tong
Summary: In this study, amino acid ionic liquids (ILs) were prepared and their properties in binary mixtures with water were investigated. The excess thermodynamic properties and activation properties for viscous flow of these mixtures were systematically studied. The results showed that the chemical interaction between ILs and water in the binary mixtures was weak, leading to certain variations in the excess thermodynamic properties and activation properties.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Mechanics
Changhun Park, Jeong-Hyun Kim
Summary: This study investigates the bouncing dynamics of glycerol/water droplets impacting a grooved hydrophobic surface by changing the viscosity and impact speed of the droplets. It found that as the viscosity of the droplets increased, the Weber number range in which petal bouncing occurred decreased.
Article
Metallurgy & Metallurgical Engineering
Xuan Lian, Zhi-hong Peng, Lei-ting Shen, Tian-gui Qi, Qiu-sheng Zhou, Xiao-bin LI, Gui-hua Liu
Summary: The properties of low-modulus sodium silicate and pre-desilication solutions in alkali systems were studied, and it was found that they have similar properties but with some differences. The electrical conductivity, viscosity, and surface tension of the solutions varied with silica concentration and temperature, indicating specific behaviors related to the ionic structure of the solutions.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Physics, Fluids & Plasmas
Jun-Yong Lee, Jae Hoon Lee, Bohdan Lev, Jong-Hyun Kim
Summary: This study presents a new perspective to investigate the effects of local flow on nematic liquid crystals. The research reveals the impact of local flow on the director orientation, as well as the relationship between the director angle and the flow angle. The study also analyzes the changes in the influenced region, such as its size and interference pattern appearance.
Article
Engineering, Marine
Lotan Arad Ludar, Alon Gany
Summary: Viscosity, often neglected in research on supercavitational flows, is found to be significant and crucial for bubble geometry and formation. This paper presents an analytical model considering viscosity and validates the model through analysis and calculations. The results show that viscosity has an important effect on bubble formation and detachment in supercavitational flows.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Analytical
Krzesimir Ciura, Monika Pastewska, Szymon Ulenberg, Hanna Kapica, Piotr Kawczak, Tomasz Baczek
Summary: The study focuses on developing new micellar electro-kinetic chromatographic methods for rapid assessment of complex biological properties, aiming to characterize retention mechanisms and evaluate predictive capabilities for intestinal absorption. Using a set of 45 compounds and quantitative structure-retention relationship (QSRR) approach, the support vector machine (SVM) model was found to have better predictive abilities.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Physical
Jiaoyuan Lian, Jiayi Wu, Shiying Wu, Wen Yu, Pengfei Wang, Li Liu, Qiang Zuo
Summary: In this study, the effects of viscosities on co-flowing step emulsification were investigated using the VOF-based CFD simulation method. The continuous phase viscosity was found to significantly influence droplet diameter and generation regime, while the increase in dispersed phase viscosity almost did not affect droplet diameter.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Chemical
I. Blonskaya, N. E. Lizunov, K. Olejniczak, O. L. Orelovich, Y. Yamauchi, M. E. Toimil-Molares, C. Trautmann, P. Y. Apel
Summary: Asymmetric membranes and pores have become increasingly important in academia and industry. Research has shown that asymmetric track-etched nanopores have great potential in nanofluidic devices. However, more attention has been focused on their electrical and electroosmotic properties rather than on their pore geometry, osmotic, and hydraulic properties.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Rajalaxmi Sahoo, C. Reshma, D. S. Shankar Rao, C. V. Yelamaggad, S. Krishna Prasad
Summary: This study investigates the influence of the flexible spacer parity of a guest photoactive liquid crystalline dimer on the photonic bandgap features of the cholesteric and twist grain boundary smectic C phases of the host molecule. The results show that the parity of the photoactive dimer affects the width of the photonic bandgap and the blue-shift of the cholesteric phase. Additionally, the parity of the dimer also affects the layer spacing and two-dimensional periodicity of the liquid crystalline phases.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Sara Rozas, Alberto Gutierrez, Mert Atilhan, Alfredo Bol, Santiago Aparicio
Summary: This study presents a multiscale theoretical investigation on the use of bifunctional hydrophobic Deep Eutectic Solvent for carbon capture using tetrapropylammonium chloride, acetic acid, and ethanolamine. The characterization includes nanoscale analysis of CO2 absorption mechanisms and changes in liquid phase properties during gas capture.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Tabouli Eric Da-yang, Alhadji Malloum, Jean Jules Fifen, Mama Nsangou, Jeanet Conradie
Summary: In this study, the potential energy of different glycine tautomers and their interaction with Cu2+ cations was investigated. The results showed that the solvation medium and the presence of Cu2+ cations influenced the stability of glycine tautomers.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Xiaoliang Gou, Nan Ye, Qingqing Han, Junjie Cui, Long Yi Jin
Summary: In this study, amphiphilic rod-coil molecules with rigid DSA parts and flexible oligoether chains were designed and their assembly capacities were investigated. The morphology of the molecular aggregates was influenced by the pH of the solution and UV light, and the aggregates showed adsorption capacity for nitroaromatic compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Shuang Liu, Liyan Shan, Cong Qi, Wenhui Zhang, Guannan Li, Bei Wang, Wei Wei
Summary: Optimizing the design of styrene-butadiene-styrene copolymer (SBS) is crucial for producing cost-effective SBS modifiers and improving road quality. This study examined the influence of SBS content and molecular structure on viscosity and compatibility. The results showed that the viscosity contribution of SBS is determined by its molecular structure and phase morphology.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Artem A. Petrov, Ekaterina A. Titova, Aydar A. Akhmadiyarov, Ilnaz T. Rakipov, Boris N. Solomonov
Summary: This work focuses on the thermochemistry of solvation of azeotropes. The enthalpies of dissolution of azeotropes in different mediums were determined, and the impact of the structure of the azeotropes on their properties in solution was discussed. A correlation between enthalpies of solvation and molar refraction was used to determine the vaporization enthalpies of azeotropes for the first time. The results were found to be consistent with literature data, obtained using direct and calculated methods. These findings contribute to the analysis of the structure-property relationships of azeotropes.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
L. V. Kamaeva, E. N. Tsiok, N. M. Chtchelkatchev
Summary: Understanding the correlations between liquids and solids allows us to predict the thermodynamic parameter range favorable for the formation of intriguing solid phases by studying liquids. In this study, we experimentally and theoretically investigated an Al-Cu-Co system within different composition ranges, and identified high-temperature solid phases. Our findings demonstrated the correlation between the boundaries of different solid phases and undercooling and viscosity in the concentration area.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
R. Aneesh Kumar, S. Jamelah Al-Otaibi, Y. Sheena Mary, Y. Shyma Mary, Nivedita Acharjee, Renjith Thomas, Renjith Raveendran Pillai, T. L. Leena
Summary: In this study, the interactions between doped and pristine coronenes and adenine nucleobases were investigated using Density Functional Theory. The optimal configurations, adsorption energies, charge transfer, and electrical properties of each complex were calculated. It was found that doped coronene had stronger adsorption strength and charge transfer compared to pristine coronene. The stability of the complexes was attributed to non-covalent interactions in the interactive region. The change in electrical conductivity of coronenes after adsorption suggested their sensitivity towards DNA bases. The predicted energy gap and prolonged recovery time for adenine-coronene configurations indicated the potential application of pristine/doped coronene in DNA detection.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Gang Zhou, Yongwei Liu, Biao Sun, Zengxin Liu, Cuicui Xu, Rulin Liu, Qi Zhang, Yongmei Wang
Summary: The CFD-DEM method was used to simulate the dust deposition pattern in the bronchus of anchor digging drivers, revealing the highest dust concentration in the vortex region of the working face. The study also found a positive correlation between dust particle diameter and bronchial deposition rate, and a negative correlation with alveolar deposition rate.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Yan Zhang, Yafei Luo, Lingkai Tang, Mingyan E, Jianping Hu
Summary: This study investigates the effects of different transition metal decorations on B12N12 nanocages on the adsorption properties of nitrosourea drugs using computational methods. The results reveal the presence of weak non-covalent interactions between metals and nanocages, and the interaction between drugs and nanocages plays a significant role in drug adsorption. Compared to free drugs, the adsorption of drugs on nanocages can facilitate electron transfer, reduce energy gaps and chemical hardness, indicating activity at the target site.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
C. I. Alcolado, J. Poblete, L. Garcia-Rio, E. Jimenez, F. J. Poblete
Summary: In this study, the selective oxidation of aromatic aldehydes was investigated using Ru(VI) as a catalyst and hexacyanoferrate (III) as a cooxidant in an alkaline medium. The reaction mechanism involves complex reaction orders for the oxidant and the aromatic aldehyde, while the reaction order for Ru(VI) is one. The proposed mechanism includes two catalytic cycles and the formation and decomposition of complexes. Quantitative structure-activity relationship analysis showed that deactivating groups in the para-position enhance the process.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Inez A. Barbieri, Marcos L. S. Oliveira, Franciele S. Bruckmann, Theodoro R. Salles, Leonardo Zancanaro, Luis F. O. Silva, Guilherme L. Dotto, Eder C. Lima, Mu. Naushad, Cristiano R. Bohn Rhoden
Summary: This study evaluated the adsorption of zolpidem on magnetic graphene oxide and synthesized magnetic graphene oxide adsorbents for zolpidem removal. The best magnetic nanoadsorbent was found to have a removal percentage of 87.07% at specific pH and temperature conditions. The results suggest that the removal of zolpidem is related to the surface chemistry of the adsorbent rather than the surface area of graphene oxide. The adsorbent showed excellent adsorption efficiency and magnetic behavior, making it a promising material for removing zolpidem from aqueous solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Hongyan Huang, Chunquan Li, Siyuan Huang, Yuling Shang
Summary: This study examines the sensitivity of the thermal conductivity of water-based alumina nanofluids to changes in concentration, sphericity, and temperature. The results show that volume fraction and temperature have a significant impact on the thermal conductivity, while sphericity also needs to be considered. A support vector machine regression model was created to analyze the sensitivity of the thermal conductivity to different parameters. The findings indicate that temperature, sphericity, and volume fraction are the most sensitive variables.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Correction
Chemistry, Physical
V. M. Pergamenshchik, T. Bryk, A. Trokhymchuk
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Valentyn Rudenko, Anatolii Tolochko, Svitlana Bugaychuk, Dmytro Zhulai, Gertruda Klimusheva, Galina Yaremchuk, Tatyana Mirnaya, Yuriy Garbovskiy
Summary: This paper reports on the synthesis, structural characterization, spectral and nonlinear-optical properties of glass nanocomposites made of glass forming ionic liquid crystals and nanoparticles. The study reveals that by exciting the nanocomposites within their absorption band, a control over effective optical nonlinearities can be achieved, allowing the modification of the magnitude and sign of the effective nonlinear absorption coefficient. The proposed strategy using metal-alkanoates based glass-forming ionic liquid crystals and nanoparticles shows great potential for the development of nanophotonics and plasmonics technologies.
JOURNAL OF MOLECULAR LIQUIDS
(2024)