Results 11 to 20 of about 4,948 (136)

An Image Encryption Algorithm Based on Multichaotic System and DNA Coding

open access: yesDiscrete Dynamics in Nature and Society, 2020
In this paper, an improved two-dimensional logistic-sine coupling map (N2D-LSCM) and an improved Henon map (NHenon) are proposed. Furthermore, by combining N2D-LSCM and NHenon map, an image encryption algorithm is proposed based on these two chaotic ...
Jiming Zheng, Zheng Luo, Zhirui Tang
doaj   +1 more source

Comparison of Four Methods for Corneal Thickness Measurement [PDF]

open access: yesJournal of Biomedical & Clinical Research, 2013
The aim of the study was to evaluate the thickness of the normal cornea in order to establish correlation between four methods of measuring including: ultrasound pachymetry (USP), anterior segment optical coherence tomography (ASOCT), non-contact tono ...
Teodora Marinova   +3 more
doaj   +3 more sources

A systematic approach of lean supply chain management in shipbuilding

open access: yesSN Applied Sciences, 2021
Highlights To the best of the authors’ knowledge, they are the first to present a systematic theory based framework, operational method, and recirculation approach for optimizing lean supply chain management (LSCM) in shipbuilding. Although the theory of
Niansheng Chu   +3 more
doaj   +1 more source

Microfilament cytoskeletons in BY-2 protoplasts and broad bean mesophyll protoplasts and the effect of latrunculin B on their distribution

open access: yes浙江大学学报. 农业与生命科学版, 2010
Protoplasts of tobacco suspension cultured BY-2 cells and broad bean (Vicia faba)mesophyll cells were prepared by enzyme digestion. The microfilament cytoskeletons in protoplasts were labelled by TRITC-phalloidin staining.
YE Lu-fei   +3 more
doaj   +1 more source

Longitudinal section cell morphology of Chinese fir roots and the relationship between root structure and function

open access: yesFrontiers in Ecology and Evolution, 2023
IntroductionThe longitudinal section cell morphology of Chinese fir roots was studied to better understand the relationship between root structure and root function.MaterialsIn this study, the adjusted microwave paraffin section method and the selected ...
Linxin Li   +11 more
doaj   +1 more source

Novel Scheme for Image Encryption Combining 2D Logistic-Sine-Cosine Map and Double Random-Phase Encoding

open access: yesIEEE Access, 2019
In this paper, we present a 2D Logistic-Sine-Cosine map (2D-LSCM) which is based on the classical 2D Logistic, Sine and Cosine maps. Performance analysis shows that it has larger chaotic range, bigger Lyapunov exponent and more complex chaotic behavior ...
Huiqing Huang
doaj   +1 more source

Confocal microscopy for astrocyte in vivo imaging: Recycle and reuse in microscopy

open access: yesFrontiers in Cellular Neuroscience, 2013
In vivo imaging is one of the ultimate and fundamental approaches for the study of the brain. Two-photon laser scanning microscopy (2PLSM) constitutes the state-of-the-art technique in current neuroscience to address questions regarding brain cell ...
Alberto ePérez-Alvarez   +2 more
doaj   +1 more source

Revealing the True Morphological Structure of Macroporous Soft Hydrogels for Tissue Engineering

open access: yesApplied Sciences, 2020
(1) Background: Macroporous hydrogel scaffolds based on poly [N-(2-hydroxypropyl) methacrylamide] are one of the widely studied biocompatible materials for tissue reparation and regeneration.
Bohumila Podhorská   +7 more
doaj   +1 more source

Quantifying the Benefits of Digital Supply Chain Twins—A Simulation Study in Organic Food Supply Chains

open access: yesLogistics, 2022
Background: Digital supply chain twins (DSCT) are gaining increased attention in academia and practice and their positive impact on logistics and supply chain management (LSCM) performance is often highlighted.
Tom Binsfeld, Benno Gerlach
doaj   +1 more source

Redox-mediated reverse water gas shift integrated with ammonia cracking over Ni/La0.75Sr0.25Cr0.5Mn0.5O3−δ

open access: yesChemical Engineering Journal Advances
NH3 and CO2 can react to produce syngas (H2 + CO), which serves as a feedstock for the production of chemicals or synthetic fuels. Combining NH3 cracking (NH3 → 0.5N2 + 1.5H2) and the redox-mediated reverse water gas shift reaction (RWGS, CO2 + H2 → CO +
Martin Keller   +2 more
doaj   +1 more source

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