Results 171 to 180 of about 247,073 (223)

Sustainable and Simple Water‐Induced Separation of Ionic Liquid Mixtures

open access: yesAngewandte Chemie International Edition, Accepted Article.
Ionic liquids (ILs) are often considered inseparable once mixed, posing a major challenge for their reuse and recy‐ cling. We demonstrate a simple and effective method to sep‐ arate ILs containing hydrophobic ([NTf2]– ) and hydrophilic ([OAc]– ) anions under ambient conditions. This process is driven by the thermodynamic behavior of the ILs in presence
Beatriz Morais   +3 more
wiley   +1 more source

O catolicismo no Brasil [PDF]

open access: bronze, 1957
Stanley J. Stein
openalex   +1 more source

Enhancing Cold Adaptation of Bidomain Amylases by High‐Throughput Computational Engineering

open access: yesAngewandte Chemie International Edition, Accepted Article.
Cold‐adapted bidomain enzymes have the potential to foster industrial sustainability by reducing energy consumption and greenhouse gas emissions. Despite their allure, these benefits are unattainable as the molecular basis of cold adaptation remains elusive and there are no strategies to guide the acquisition of this behavior.
Zhongyue J. Yang   +6 more
wiley   +1 more source

Greek Protected Designation of Origin Xinomavro Wines: A Deep Dive into Their Chemical Composition and Geographical Origin by Using Ultra High Performance Liquid Chromatography–Trapped Ion Mobility Spectrometry–Quadrupole Time of Flight–Mass Spectrometry

open access: yesAnalysis &Sensing, EarlyView.
Greek protected designation of origin Xinomavro wines are analyzed with ultra high performance liquid chromatography–trapped ion mobility spectrometry–quadrupole time of flight‐mass spectrometry (UHPLC‐TIMS‐QTOF‐MS). Both target and not‐target screening approaches are employed, leading to the identification and quantification of several polyphenols and
Panagiotis‐Loukas Gialouris   +6 more
wiley   +1 more source

Brasil secreto

open access: yes, 1969
"Este Artículo pertenece a la sección En punto. "
openaire   +1 more source

Effect of Carbon Nanofillers on the Properties of Rubber Composites With High Levels of Carbon Black and Silica

open access: yesJournal of Applied Polymer Science, EarlyView.
ABSTRACT High‐performance rubber‐based composites often contain significant amounts of fillers such as carbon black and silica. Improving the behavior of such composites with small amounts of nanomaterials remains a challenge, and limited progress has been reported in recent years.
Luciana V. Cambraia   +7 more
wiley   +1 more source

Assessing the Thermo‐Oxidative Degradation of 6FDA‐Based Thermosetting Polyimides Using a Combination of Isothermal and Non‐Isothermal TGA

open access: yesJournal of Applied Polymer Science, EarlyView.
ABSTRACT This study investigates and compares the thermal stability of two 6FDA‐based thermosetting polyimide formulations with varied amounts of internal crosslinkers. The baseline formulation is a commercially available polyimide with good resin transfer molding processability and a high glass transition temperature, Tg, in the range of 340°C–466°C ...
Valeri Ivanov Petkov   +3 more
wiley   +1 more source

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