The development of smart materials and surfaces with multiple antibacterial actions is great importance for both fundamental research practical applications, but this has proved to be extremely challenging.

Development of smart switchable surfaces to solve the inevitable bacteria attachment and colonization has attracted much attention; however, it proves very challenging achieve on-demand regeneration for noncontaminated surfaces. We herein report a smart, host–guest interaction-mediated photo/temperature dual-controlled antibacterial surface, topologically combining stimuli-responsive polymers with nanobactericide. From point view long-chain polymer design, peculiar hydration layer generated...

Fluorescent antennas (FAs) exhibit considerable promise in optical wireless communication (OWC), primarily due to their advantages over conventional systems terms of gain and field view (FoV). This paper presents a COMSOL-based model designed optimize external light-concentrating structures for FAs, with its accuracy validated through both qualitative quantitative comparisons. Leveraging refractive index modulation the conservation étendue, two distinct are developed. The first structure...

Abstract As one of the weakest points in high-voltage direct current (HVDC) cables and accessories, accumulation space charges at crosslinked polyethylene (XLPE)/ethylene propylene diene monomer (EPDM) interface coated with silicone oil is crucial to insulating properties. The physical mechanisms underlying this charge dissipation phenomenon remain unclear, particularly molecular level. Thus, interfacial behavior EPDM/XLPE, EPDM/non-polar dimethyl (PDMS)/XLPE, EPDM/polar fluorinated...

Abstract With the expansion of freight aerial cableways in mountainous regions, safety monitoring becomes crucial. Traditional methods are inefficient and lack intelligent warning systems. This paper proposes SafeRopeSystem, a deep learning-based system. It utilizes an edge-cloud architecture with SafeRopeNet, lightweight target detection network enhanced by Adaptive Feature Enhancement Module Weather-Robust Pyramid Network for resilience adverse weather. The system includes SafeHead...

Abstract Keratin‐based materials are widely used in biomedical applications due to excellent biocompatibility and biodegradability. In this study, keratin was extracted from waste wool fibers blended with polycaprolactone (PCL) produce PCL/keratin nanofibrous mats by electrospinning. The electrospun were chlorinated diluted sodium hypochlorite solution endow antibacterial properties. prepared characterized scanning electron microscopy, X‐ray photoelectron, Fourier infrared spectroscopy....

In cation–anion co-doping, rare earth elements excel at regulating the electronic structure of perovskites, leading to their improved photocatalytic performance. this regard, impact co-doping Ba and Ti sites in BaTiO3 on its properties was thoroughly investigated based 2 × supercell structures with different La concentrations 12.5% 25% using DFT calculations. The band structure, density states, charge difference, optical properties, redox edge co-doped models mentioned above were analyzed....

Oxygen and ethylene permeabilities have been determined at 19°C for three kinds of polyethylene films (LDPE, LLDPE HDPE) in the temperature range 4–30°C LDPE. At constant temperature, oxygen decrease with increasing density. The dependence was found to be Arrhenius tested, activation energies 47.7 44.1 kJ/mol respectively. Permeabilities were independent film thickness composition oxygen/nitrogen mixtures. Gas zeolite-filled LDPE larger than unfilled film. adsorption isotherm on ceramic...

Aluminum tri-hydroxide (ATH) was selected as a retardant doped into epoxy resin (EP), and smoke suppression flame retardancy of ATH/EP were investigated. The results showed that ATH-doped EP has superior performance resisting the development release to EP. Peak heat rate with 15-wt% ATH decreased by 28.49% in comparison EP; total it 17.65%; production carbon monoxide 30.24%. activation energy much smaller than due decomposition ATH, but 30–40 kJ mol −1 higher second stage. Based on analysis...

It is usually seen that DC flashover voltage of the water droplet on surface silicone rubber (SIR) composite insulator lower than AC voltage. necessary to study mechanisms and influencing factors properties. In this article, experiments are performed moving processes influences its dynamic behaviours under DC/AC electric field. Besides, an electrohydrodynamic coupling method employed establish simulating model. Moreover, theoretical physical model established reveal a droplet. indicated...

Abstract The ionic transport process is an important counterpart to charge in oil‐paper insulation, and it significantly impacts oil flow electrification at the interface. Despite this, dynamics of this phenomenon underlying mechanisms remain unclear, particularly molecular level. To understand fundamental aspect, we conduct Molecular Dynamics study on behaviour impurity ion different insulation models under various external electric fields. Different influence factors, such as fields,...

Cation-anion co-doping has proven to be an effective method of improving the photocatalytic performances CaTiO3 perovskites. In this regard, (La/Ce-N/S) co-doped models were investigated for first time using first-principles calculations based on a supercell 2 × with La/Ce concentrations 0.125, 0.25, and 0.375. The energy band structure, density states, charge differential density, electron-hole masses, optical properties, water redox potential calculated various models. According our...

Needleless electrospinning technology is considered as a better avenue to produce nanofibrous materials at large scale, and electric field intensity its distribution play an important role in controlling nanofiber diameter quality of the web during electrospinning. In current study, novel needleless method was proposed based on Von Koch curves Fractal configuration, simulation analysis new process were performed with Finite element software, Comsol Multiphysics 4.4, linear nonlinear fractal...

Abstract In this study, the wicking properties of ring and compact-siro spun staple yarns were compared. The twist level, which is related to structure yarns, was found significantly influence property two kinds yarn. Polyester fibers with 1.33 dtex × 38 mm selected as fiber material, effect level on investigated using capillary rise method. results show that a decreasing coefficient, height increases decrease in yarn compactness. showed better owing it special ply structure. Furthermore,...

Cold start has been realized as an important issue for PEMFC in its global commercialization. As is well-known, the conventional "channel-rib" type flow field will surely lead to several problems, such water accumulation under rib, resulting slow removal and serious ice blockage pores. In recent years, with fast development of metal foam materials, recognized a promising alternative replacement field. this study, cold model established sub-zero temperature. The coupled transport processes...

"Janus-featured" hydrogels with different structure and function for each layer can be particularly important in diverse application. However, very few studies have been conducted on multifunctional Janus-featured hydrogel, significant challenge simple, rapid, efficient fabrication of such remains. Herein, poly(N-hydroxyethyl acrylamide) (polyHEAA) hydrogel loaded modified silica nanoparticle was fabricated by the supergravity method. Silica nanoparticles grafted...

We propose a reinforcement-learning-optimized nonlinear physical diffractive neural network, which can simultaneously perform OAM-mode and LP-mode conversion with Gaussian noise removal. The PSNR SSIM of the converted modes reach 27.94 dB 0.838, respectively.

Abstract Copper-mineral oil interfaces are key components of oil-impregnated power transformers and commonly believed to be one their weak points. The formation an electric double layer (EDL) at this interface as a result charge accumulation transfer is crucial its insulating properties, but molecular-level understanding phenomenon remains unclear. To understand fundamental aspect, we have investigated the effect different EDLs on potential interfacial barrier between copper mineral by using...