Results 41 to 50 of about 7,514,588 (381)

Theoretical Chemistry Course for Students in Chemistry [PDF]

open access: yesarXiv, 2021
In this work, the teaching content of a theoretical-chemistry (TC) course is reformed, establishing a theoretical contents from micro- to macro-system, and comprehensively introducing the theory of chemical reaction to undergraduate students in chemistry. In order to develop such TC course based on the general physical-chemistry course, we focus on the
arxiv  

Dewatering Green Sapwood Using Carbon Dioxide Undergoing Cyclical Phase Change between Supercritical Fluid and Gas

open access: yesMolecules, 2020
Conventional kiln drying of wood operates by the evaporation of water at elevated temperature. In the initial stage of drying, mobile water in the wood cell lumen evaporates.
Robert A. Franich   +2 more
doaj   +1 more source

Determination of the Concentration of Heavy Metals in Artisanal Cheeses Produced in the Mexican States of Tabasco and Chiapas

open access: yesMolecules, 2023
Cheese consumption provides humans with minerals, proteins, carbohydrates, and vitamins. In Mexico, several cheese varieties are produced, each with its texture, scent, and flavor. The artisanal cheeses made in the states of Tabasco and Chiapas—including,
Francisco Anguebes-Franseschi   +7 more
doaj   +1 more source

Muon Irradiation of ZnO Rods: Superparamagnetic Nature Induced by Defects

open access: yesNanomaterials, 2022
In this work, through a combination of photoluminescence spectroscopy, X-ray powder diffraction and magnetic measurements, it is determined that ZnO rods, made hydrothermally using a combination of magnetic field with respect to the force of gravity ...
Cody Landry   +3 more
doaj   +1 more source

Potensi Ekstrak Kulit Buah Manggis sebagai Inhibitor Korosi Baja Karbon dalam Larutan NaCl 1% Jenuh Karbon Dioksida

open access: yesΑl-Kimiya: Jurnal Ilmu Kimia dan Terapan, 2019
Pemanfaatan limbah bahan alam sebagai inhibitor korosi belum banyak dilaporkan. Diantaranya adalah kulit buah manggis (Garcinia mangostana L.) yang dalam bentuk ekstraknya mengandung senyawa golongan flavonoid, alkaloid, dan tanin.
Tety Sudiarti   +2 more
doaj   +1 more source

Theory and modeling of light-matter interactions in chemistry: current and future [PDF]

open access: yesarXiv, 2023
Light-matter interaction not only plays an instrumental role in characterizing materials' properties via various spectroscopic techniques but also provides a general strategy to manipulate material properties via the design of novel nanostructures.
arxiv  

The physical chemistry and materials science behind sinter-resistant catalysts.

open access: yesChemical Society Reviews, 2018
Catalyst sintering, a main cause of the loss of catalytic activity and/or selectivity at high reaction temperatures, is a major concern and grand challenge in the general area of heterogeneous catalysis.
Yunqian Dai   +4 more
semanticscholar   +1 more source

Quantum chemical exercise linking computational chemistry to general chemistry topics

open access: yesChemistry Teacher International, 2020
Students in a second semester general chemistry course used quantum chemical calculations to investigate and reinforce general chemistry concepts. Students explored the isomers of hypochlorous acid, made predictions of miscibility via dipole moments ...
Simpson Scott   +5 more
doaj   +1 more source

PHYSICAL CHEMISTRY [PDF]

open access: yesSchool Science and Mathematics, 1903
n ...
openaire   +1 more source

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