Results 1 to 10 of about 324,928 (159)

A Novel Chaotic Image Encryption Algorithm Based on Latin Square and Random Shift. [PDF]

open access: yesComput Intell Neurosci, 2021
To realize the safe transmission of images, a chaotic image encryption algorithm based on Latin square and random shift is proposed. The algorithm consists of four parts: key generation, pixel scrambling, pixel replacement, and bit scrambling. Firstly, the key is generated from the plain image to improve the sensitivity of the encryption method ...
Zhang X, Wu T, Wang Y, Jiang L, Niu Y.
europepmc   +2 more sources

Landscape genetic structure of Scirpus mariqueter reveals a putatively adaptive differentiation under strong gene flow in estuaries. [PDF]

open access: yesEcol Evol, 2019
In this study, we analyzed the genetic structure of Scirpus mariqueter in the CRE and the QRE and estimated the effects of gene flow, divergent selection, and population colonization history on the structure based on AFLP data. Results showed that there was a moderate‐high level of genetic differentiation among populations, which was tested to be ...
Yang M   +7 more
europepmc   +2 more sources

Spectroscopy, Structure, Biomacromolecular Interactions, and Antiproliferation Activity of a Fe(II) Complex With DPA-Bpy as Pentadentate Ligand

open access: yesFrontiers in Chemistry, 2022
An Fe(II) complex with DPA-Bpy (DPA-Bpy = N,N-bis(2-pyridinylmethyl)-2,20-bipyridine-6 -methanamine) as the ligand was synthesized and characterized to mimic bleomycin.
Hehe Bai   +8 more
doaj   +1 more source

Core-shell structure of LiMn2O4 cathode material reduces phase transition and Mn dissolution in Li-ion batteries

open access: yesCommunications Chemistry, 2022
Its high nominal voltage, thermal stability, and low toxicity render LiMn2O4 a highly promising cathode material for lithium ion batteries, but capacity fading due to unwanted side reactions during cycling remains an issue.
Chanikarn Tomon   +7 more
doaj   +1 more source

Molecular dynamics simulations of the evaporation of hydrated ions from aqueous solution

open access: yesCommunications Chemistry, 2022
Halide ions are present in the Earth’s atmosphere, but for the important case of fully or partially saturated water vapor it is not clear whether these ions are hydrated, i.e. surrounded by an adsorbed water layer, or not.
Philip Loche   +2 more
doaj   +1 more source

Electrochemical Behavior and Direct Quantitative Determination of Paclitaxel

open access: yesFrontiers in Chemistry, 2022
The electrochemical behavior and direct quantitative determination of paclitaxel, a poorly soluble drug made into microemulsion, were researched by cyclic voltammetry in acetate buffer solutions (pH = 4.0) at a glassy carbon electrode.
Jiaqi Lang   +5 more
doaj   +1 more source

NMR microscopy of tissue in organic and mixed solvents [PDF]

open access: yesJournal of the Serbian Chemical Society, 2013
We propose to use organic and mixed solvents for nuclear magnetic resonance microscopy of fixed tissue as a means for improving image information content. NMR properties of some standard solvents (methanol, acetone, DMSO) and solvents in use for
Macura Slobodan   +3 more
doaj   +1 more source

Inovativna laboratorijska perilica namijenjena pranju viala [PDF]

open access: yesKemija u Industriji, 2016
Viale zapremnine 2 ml za automatske dodavače uzoraka (engl. autosampler) danas su u instrumentalnim laboratorijskim analizama nezaobilazno laboratorijsko posuđe.
Marin Kovačić
doaj   +1 more source

Glicerol: um breve histórico e aplicação em sínteses estereosseletivas

open access: yesQuímica Nova, 2011
Presently glycerol is considered a co-product of biodiesel industry. As the biodiesel production is exponentially increasing, glycerol generated from the transesterification of vegetable oils and fats is also being produced on a large scale, and turned ...
Adilson Beatriz   +2 more
doaj   +1 more source

Application of ultrasound and methanol for rapid removal of surfactant from MCM-41 [PDF]

open access: yesJournal of the Serbian Chemical Society, 2014
Ultrasound waves have been successfully applied for removing template from the mesoporous MCM-41 molecular sieve. The method uses a 28 KHz ultrasound irradiation in a methanol solvent for disrupting micellar aggregation of the surfactant ...
Zanjanchi Mohammad A.   +1 more
doaj   +1 more source

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