Results 61 to 70 of about 3,868 (229)

Chiral (Stereoselective) Drugs, Asymmetric Synthesis, and Racemic Resolution Methods

open access: yesChirality, Volume 38, Issue 7, July 2026.
Chirality is crucial in drug development since both biological targets in the organism and the majority of pharmaceutical compounds are chiral. The synthesis and resolution of chiral compounds are critical steps while developing chiral drugs. Asymmetric synthesis and racemic resolution are the two most common methods for obtaining enantiopure drugs ...
Burcu Karayavuz   +1 more
wiley   +1 more source

Synergistic Effects of Microwave and Osmotic Dehydration on Food Processing: A Comprehensive Review

open access: yesComprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 4, July 2026.
ABSTRACT The combination of osmotic dehydration (OD) and microwave radiation (MW), referred to as microwave‐assisted osmotic dehydration (MWOD), has emerged as a promising hybrid strategy for optimizing food processing by enhancing mass transfer and preserving bioactive compounds.
Amanda Aparecida de Lima Santos   +6 more
wiley   +1 more source

Distribution ratio, distribution constant and partition coefficient. Countercurrent chromatography retention of benzoic acid

open access: yes, 2011
International audienceThere is some confusion in chromatography between terms such as solute distribution ratio, distribution constant and partition coefficient.
Berthod, Alain   +3 more
core   +1 more source

Acid-free countercurrent chromatographic separation of lanthanide nitrate salts using water / chloride ionic liquid biphasic systems

open access: yesJournal of Ionic Liquids
The separation of lanthanide compounds typically relies on acidic media, complexing agents and multi-stage solvent extraction processes. Here we report an acid-free approach to lanthanide nitrate separation using liquid-liquid countercurrent ...
Martyn J. Earle   +5 more
doaj   +1 more source

Influence of speed distribution in a rounded flow on the character of slopes erosion

open access: yesRUDN Journal of Engineering Research, 2019
One of the most important issues of river hydraulics is the movement of water and the formation of a channel in a stream that has a non-straight-line outline in the plan. Under natural conditions for rivers characteristic winding shape in the plan.
O. Ya. Maslikova   +3 more
doaj   +1 more source

Experimentally Overcoming the Limitations of Methanol Synthesis From Syngas by Sorption Enhancement

open access: yesChemical Engineering &Technology, Volume 49, Issue 6, June 2026.
A deep analysis of the sorption‐enhanced reaction process (SERP) for methanol synthesis from CO2/H2 syngas with the experimental study of many parameters. ABSTRACT Methanol is an excellent candidate as a low carbon footprint fuel for the energy transition.
Enrico Antonuccio   +4 more
wiley   +1 more source

Sensitivity analysis of velocity field influence on condensers’ performance and parallel circuit design based on actual air velocity distribution

open access: yesCase Studies in Thermal Engineering
Currently, most integral simulations of condensers are based on the assumption of uniform intake air, which differs from real scenarios and leads to imprecise circuit designs.
Chuangye Li   +6 more
doaj   +1 more source

Image-Processing-Based Study of the Interfacial Behavior of the Countercurrent Gas-Liquid Two-Phase Flow in a Hot Leg of a PWR

open access: yesScience and Technology of Nuclear Installations, 2012
The interfacial behavior during countercurrent two-phase flow of air-water and steam-water in a model of a PWR hot leg was studied quantitatively using digital image processing of a subsequent recorded video images of the experimental series obtained ...
Gustavo A. Montoya   +4 more
doaj   +1 more source

Subsurface Ventilation Processes in a Wind‐Driven Coastal System: Insights From the Gulf of Oristano (Italy)

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract High‐resolution, year‐long observations (2023–2024) were conducted in the Gulf of Oristano, a shallow semi‐enclosed basin on the western coast of Sardinia, to address the scarcity of sustained in situ measurements resolving sub‐seasonal coastal processes in the Mediterranean.
Andrea Cucco   +12 more
wiley   +1 more source

Magnetic‐Field‐Driven Precision Fabrication of Multifunctional Microgels for Biomedical Applications

open access: yesAggregate, Volume 7, Issue 5, May 2026.
Superparamagnetic iron oxide nanoparticles embedded in alginate precursors convert magnetic gradients into internal body forces, driving contactless segmentation into uniform microspheres and continuous microfibers without relying on external shear or oil phases.
Yingying Hou   +12 more
wiley   +1 more source

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