Browse Articles

A hybrid steganography framework using DCT and GAN for secure data communication in the big data era

Controlling the Conductivity of Cyclo[8]pyrrole Polyiodide Cocrystals via Minor Substituent Group Changes

Medication safety analysis of elderly inpatients based on improved functional resonance analysis method (FRAM): a mixed methods study

Evidence of Ferroelectric Distortions in Topological Crystalline Insulators via Transverse Thermoelectric Measurements

Effect of transcranial direct current stimulation on swallowing improvement and cortical activity in hemispheric stroke patients: a randomized, controlled trial

In Situ Monitoring of Molten Chloride Salt Chemistry and Corrosion Using a Microelectrode

Cognitive impairment and quality of life among patients with carotid artery stenosis in Jordan: a cross-sectional study

One-for-All Photoactivatable Manganese-Based Carbon Monoxide-Releasing Molecules (CORMs) for Synergistic Therapy of Mycobacterial Infection

Combined low intensity blood flow restriction and high intensity half squat training improves lower limb force development in adolescent wrestlers

A diffusion enhanced CRF and BiLSTM framework for accurate entity recognition

Applying Active Learning toward Building a Generalizable Model for Ni-Photoredox Cross-Electrophile Coupling of Aryl and Alkyl Bromides

The triglyceride-glucose index positively associates with the prevalence and severity of coronary heart disease in patients among hypertension

An image encryption scheme using 4-D chaotic system and cellular automaton

Abstract This paper proposes an innovative image encryption scheme exploiting the chaotic nature of a four-dimensional chaotic system and the computational capability of Langton’s Ant cellular automaton. Traditional three-dimensional chaotic systems often have restricted key space and limited complexity, making them vulnerable to cryptanalysis. To address these limitations, the proposed scheme integrates multi-layered transformations, including chaotic diffusion, symbolic encoding, and dynamic keystream generation. Comprehensive security analyses demonstrate that the proposed scheme achieves near-optimal results, including a large key space of approximately 1 $$10^{840}$$ , high entropy (7.9977), and excellent differential attack resistance indicated by NPCR ( 99.61%) and UACI ( 33.44%) metrics. The proposed method effectively disrupts pixel correlations, providing robust protection against various cryptographic threats. These results confirm that our encryption approach offers a secure, efficient, and practical solution for protecting multimedia data in modern digital communication systems.

Aromaticity Localization Effects in Polycyclic Aromatic Hydrocarbons for Discovering Narrowband Fluorescence Materials

Multi-omics reveals the mechanism of vagus nerve stimulation in the treatment of chronic congestive heart failure

ATP-Ion Complexation and Lithium’s Bioactive Form in Cellular Solutions

Identification and characterization of TCP transcription factor GmTCP670 associated with soybean development

Visualizing Size-Dependent Dynamics of CeO_2−δ{100}-Supported CoO_<i>x</i> Nanoparticles Under CO₂ Hydrogenation Conditions

Novel synthesis method of multi walled carbon nanotube-silica Janus nanostructures

Abstract Nowadays, Janus nanoparticles have received a lot of attention in high-tech processes due to their special ability of simultaneous hydrophilicity and oleophilicity. In this study, a new synthesis method for Janus nanostructure using multi-walled carbon nanotube (MWCNT) and silica nanoparticle is proposed. FTIR, TEM, EDX, XRD and TGA characterization tests were performed to check the properties of synthesized nanostructure. The simultaneous hydrophilicity and oleophilicity properties of the synthesized nanostructure was investigated by examining its placement at the interface of water and various organic materials (engine oil, chloroform and crude oil). Also, effect of weight ratios of nanotubes to silica (10, 20, 30, 40 and 50%) on the degree of hydrophilicity and oleophilicity were investigated. The results of FTIR, XRD, EDX and TGA characterization tests effectively show the formation of nanotube-silica hybrid. Also, the FTIR test results confirm the hydrophilicity and oleophilicity of the synthesized nanostructure according to the absorption spectrum of carboxylic acid functional groups (hydrophilicity property) and alkane and alkene bonds related to oleic acid (oleophilicity property). In addition, TEM images clearly show the bonding of silica nanoparticle on the structure of MWCNTs. The average size of the synthesized crystal was estimated to be about 13 nm using XRD results, while with the help of TEM image analysis, the average particle size was estimated to be 14 nm. The physical presence of the synthesized nanostructure at the interface of water and various organic materials is a good confirmation of the dual nature of the synthesized nanostructure. The finer, more uniform and the largest amount of emulsion was formed at the nanotube to silica ratio of 20%, therefore Janus nanostructure has a better performance in this ratio.

<i>Operando</i> Contactless EFISH Study of the Rate-Determining Step of Light-Driven Water Oxidation on TiO₂ Photoanodes