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Liquids
Scopus
ISSN 2673-8015 · MDPI AG · 142 artikel di indeks
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Artikel Jurnal Teks lengkap
A Flow-Bench-Supported, Configuration-Additive CFD Framework for Decoupling the Hydraulic Loss and Regulator Load of an Integrated Irrigation Hydrant: A Comparison of the Conventional and Redesigned Bodies
In pressurized irrigation networks, water-intake hydrants combine flow regulation, shutoff and metering in a single cast body, and the resulting coupled resistance obscures how much each function costs. The conventional body of a DN100 (nominal diameter 100 mm) hydrant and a redesigned production…
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Are Wall Shear Stress Fluctuations the Missing Hydrodynamic Parameter in Gas-Assisted Membrane Distillation?
Gas–liquid two-phase flow is widely recognized as an effective strategy for enhancing membrane distillation (MD) performance by mitigating thermal and concentration polarization. However, most studies interpret this enhancement using time-averaged hydrodynamic quantities, such as mean wall shear…
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Modeling the Relationship Between the Transition Time and Energy Barrier in Films from Nanofluid Stepwise Thinning
Liquid films formed from nanofluids exhibit a ubiquitous, multiple stepwise thinning phenomenon, where the film thins layer by layer. Under film confinement, the nanoparticles experience a significant reduction in their degrees of freedom, inducing entropy-driven structural transitions. The primary…
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Formation of Naphthalene Diimide Derivatives in NTCDA Solution in EMIM-DCA/EMIM-Ac Ionic Liquid Mixture: Identification of Product Structures Using EPR, DFT and Detection of Light-Induced NTCDA Radical Anion in EMIM-DCA by 1H NMR
In this study, two low-concentration solutions of 1,4,5,8-Naphthalene tetracarboxylic dianhydride (NTCDA) in two imidazolium-based ionic liquids (IL), EMIM-DCA and EMIM-Ac, at room temperature were mixed; after around ten days of storage, the formation of two variants of electron-withdrawing…
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Estimation of Hansen Solubility Parameters with an Entropy-Based Solubility-Parameter-Translated SRK Equation of State
The equation of state (EoS) is very helpful for the prediction of both high-pressure phase diagrams and fundamental properties. However, the general cubic EoS has low prediction accuracy for compressed and saturated liquid densities and the pure component critical density, especially for highly…
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Effect of Ethanol on the Equilibrium Solubility and Apparent Specific Volume of Sodium Sulfamethazine in Aqueous Systems at Several Temperatures
The main objective of this research was to determine and correlate the equilibrium solubility of sodium sulfamethazine (NaSMT) in several {ethanol (1) + water (2)} mixtures reported in mass/volume and mass/mass percentages at different temperatures, as well as the density of saturated solutions…
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Solar-Assisted Direct Contact Membrane Sustainable Distillation for Desalination: An Integrated Bibliometric and Critical Review
Increasing freshwater scarcity has intensified the need for energy-efficient and sustainable desalination technologies, making solar-assisted Direct Contact Membrane Distillation (DCMD) an attractive solution due to its low-temperature operation, high salt rejection, and compatibility with…
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Effect of Nozzle Geometry on the Rheological Properties of Natural Fiber-Reinforced Thermoplastic Composites in Fused Deposition Modeling: A Review
Fused Deposition Modeling (FDM) has emerged as one of the most widely adopted additive manufacturing (AM) technologies, valued for its simplicity, cost-effectiveness, and versatility in fabricating complex geometries. The geometry of the extrusion nozzle plays a critical role in determining melt…
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Thermodynamic Insights into Isoniazid Solubility in PEG 300 + Water Mixtures
Solubility studies are essential for developing more efficient dosing processes and systems. The solubility of INH in a mixture of PEG 300 (1) + water (2) was evaluated at various temperatures using UV/Vis spectrophotometry and the shaking flask method. Solubility increased by 150% at 288.15 K and…
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Liquid Springs from Wettable Materials
Conventional liquid springs enable storage of energy in the form of interfacial tension at forcibly wetted lyophobic surfaces. The pressure–volume work performed to compress the liquid into a poorly wettable porous medium is recovered during spontaneous expulsion when pressure falls below the…
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Optical Rotatory Dispersion of Poly(l-lactic acid) (PLLA) in 19 Solvents and Study of PLLA Complexation with Polyphenylacetylene (PPA) in Solution
Poly(l-lactic acid) or poly(l-lactide) (PLLA) is an optically active polymer derived from renewable sources and fully biodegradable. It is known that PLLA assumes a left-handed helix in the solid state and also in solution it still keeps a certain degree of helical structure. Here, we examine the…
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Self-Similar Analysis of Start-Up Fluid Flow over Flat Plate
Based on the Lie group method (symmetry transformation groups), an analysis of an unsteady (start-up) flow over a flat surface was performed. This approach enabled reducing the number of independent arguments, which significantly simplifies the process of numerical modeling. An unsteady solution…
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Lifetime of a Single Bubble at Different Liquid Surfaces
Bubble bursting at liquid surfaces was investigated experimentally using high-speed imaging at 25,000 fps and micro-particle image velocimetry (µ-PIV) at up to 4000 flow fields per second. Three fluids with distinct rheological properties were studied: a viscous Newtonian fluid (Emkarox, η0 = 0.072…
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Structure–Transport Relationships in Ionic Liquids: Effects of Cation Architecture and Ether Functionalization
Balancing ionic transport, thermal robustness, and electrochemical stability remains an important challenge in the design of ionic liquid (IL) electrolytes for lithium-based energy storage. Here, quantitative structure–transport relationships were established through a systematic comparison of six…
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Interfacial Adsorption Behavior of Metal Oxide Nanoparticles at Hydrophobic Ionic Liquid–Water Interfaces
Metal oxide nanoparticles dispersed in water are difficult to recover because of their small size and colloidal stability. In this study, the interfacial adsorption behavior of Fe2O3, CoO, and CuO nanoparticles at hydrophobic ionic liquid (IL)–water interfaces was investigated and compared with…
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Volumetric Properties of 9 Binary Liquid Mixtures Ethyl Propanoate + Naphthenes (From Cyclohexane to Decylcyclohexane): Experimental Study from 288.15 K to 328.15 K
In this work, the volumetric properties of nine binary systems composed of ethyl propanoate and n-alkylcyclohexanes (from cyclohexane to decylcyclohexane) were investigated. Densities were measured at atmospheric pressure (101 kPa) over the entire composition range and at temperatures from 288.15 K…
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Acid Catalytic Effects of Hot Compressed Water and Water–Alcohol Mixtures, and Their Applications as Tunable and Catalyst-Free Solvents
This paper provides a comprehensive overview of research findings concerning the acid catalytic effect (ACE) of hot compressed water and water–alcohol mixtures, along with the applications of these solvents. The ACE observed during reactions can be categorized into three types: inherent…
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Optical Evaluation of Microviscosity in 4-Cyano-4′-n-Octyloxybiphenyl Liquid Crystals Using a Viscosity-Responsive Aggregation-Induced Emission Luminogen
We report an optical method to estimate local microviscosity in thermotropic liquid crystals using viscosity-responsive aggregation-induced emission luminogens. Pendant-type luminogens were designed by covalently attaching 4-cyano-4′-n-octyloxybiphenyl mesogens (n = 8, 10) to a…
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Design and Characterization of a Fully Automated Free-Standing Liquid Crystal Film Holder
We present the design and characterization of a fully automated free-standing liquid crystal (FSLC) film holder, enabling remote and precise control of liquid crystal (LC) volume release, wiping speed, and temperature. Using 4-octyl-4′-cyanobiphenyl (8CB) as a test material, we systematically…
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An Alternative Approach to the Saturation Behavior of Adsorption Isotherms
Experimentally, adsorption is usually described by adsorption isotherms, which present a saturation effect at high enough concentration or pressure of the adsorbate fluid. This well-known saturation effect was first theoretically discussed by Langmuir, and it is commonly attributed to the finite…