Inorganic luminescent materials hold great promise for optoelectronic device applications, yet the limited efficiency and poor thermal stability of oxide-based deep-red emitting phosphors hinder advancement plant lighting technologies. Herein, a simple compositional engineering strategy is proposed to stabilize phase, boost external quantum (EQE) enhance stability. The chemical modification PO

Utilizing porous polyacrylonitrile (PAN) fibers as the precursors, carbon were obtained by cross-linking of precursor with hydrazine hydrate and subsequent heat treatment. A nitrogen content more than 14 wt % was achieved in fibers. The fiber that prepared at low concentration (5 %) showed an optimal BET surface area 277.4 m2/g micro-/meso-/macropores. CO2 adsorbed amount this 101 mg/g 25 °C under atmospheric pressure, which 2.1 times without hydrate. In simulated flue gas environment (10%...

Instability of superwetting surface is the stumbling block flexible polymeric membranes for continuous separation water-in-oil or oil-in-water emulsions. Manipulation rigid nano-TiO2 on hierarchical poly(vinylidene fluoride) (PVDF) membrane by mimicking plant roots holding soil behaviour enabled generation robust withstanding harshly physical and chemical torture. The unique interface combination, which fabricated a compacted nano-layer with thickness ~20 μm, was disclosed systematic...

Solid–liquid organic phase-change micro/nanocapsules are potential candidates for energy storage. Recently, significant progress has been made regarding in terms of their synthesis, properties, and applications. Extensive research conducted to enhance thermal such as storage capacity, conductivity, reliability. However, factors that influence the properties have received little attention. This study presents a comprehensive review focusing on influencing factors. In addition, major...

The abundance of straw in Quebec makes this material an interesting insulation option to reduce the energy consumption buildings. At same time, studies indicate that bales' outstanding hygrothermal performance can provide a comfortable living experience for occupants. However, due slightly higher thermal conductivity bales compared common materials, walls are found be 30–90% thicker, which lead moisture-related problems especially under humid and cold outdoor climate. Therefore,...

Abstract The jet swell effect in the wet spinning of polyacrylonitrile (PAN) fiber was studied by optical microscopy and ratio obtained through directly measuring diameter freely extruded fibers. For reflecting actual drawing situation fibers coagulation process, stretches were then corrected from apparent values to true values, their on cross-sectional morphology, internal structure, orientation wet-spun PAN microscopy, scanning electron X-ray diffraction, respectively. results showed that...

Based on the limited open data natural radionuclide contents in soil and pedological parameters, a digital version of database with about 15,000 sets naturally occurring 238U, 226Ra, 232Th, 40K China was constructed by manual editing spatial interpolation. Both area-weighted averages 4 radionuclides their distributions well agree those published previous references. This implies that has been successfully reconstructed. Furthermore, nationwide maps were also created. It is hoped...

Utilizing solar energy for thermal storage has emerged as an appealing option lowering the amount of consumed by buildings.Due to their high heat density, non-corrosive and non-polluting properties, alcohols can be good alternatives replace petroleum-derived paraffins phase change materials (PCMs).In this paper, ternary eutectic PCMs with suitable temperatures were designed prepared using lauryl alcohol (LA), cetyl (CA), stearyl (SA) xylitol (X).The Differential Scanning Calorimetry (DSC)...

Phase change materials (PCM) play a pivotal role in optimizing the thermal management of low-temperature buildings, contributing to reduced energy consumption and greenhouse gas emissions. This study aims address limitations conventional paraffin-based PCM by developing three binary mixtures fatty alcohols. Through combination theoretical calculations, phase diagram fitting, experimental validation, performance, transition behavior, preparation methods these were thoroughly investigated...

<title>Abstract</title> Inorganic luminescent materials hold great promise for optoelectronic device applications, yet the limited efficiency and poor thermal stability of oxide-based deep-red emitting phosphors hinder advancement plant lighting technologies. Herein, a simple compositional engineering strategy is proposed to stabilize phase, boost external quantum (EQE) enhance stability. The chemical modification PO₄ tetrahedron in NaMgPO₄:Eu by incorporating...

Abstract: Potassium dihydrogen phosphate, KH2PO4 (KDP) crystal is an excellent electro-optical nonlinear optical with large coefficient, high laser damage threshold, and frequency doubling effect, effect , Piezoelectric effects other special features, widely used in inertial confinement fusion engineering (ICF) switching devices. Therefore, its growth mechanism, process performance have been systematically studied. In the of KDP growth, it found that stability solution important factor...

When selecting insulation materials, not only should their thermal efficiency be considered, but also impact on the environment.Compared to conventional bio-based materials have comparable performance, they a lower embodied energy.Sheep wool has advantages of low negative health impact, high fire resistance, eco-friendliness, and moisture resistance.However, studies applying sheep in cold humid climates are still insufficient.The purpose this study is simulate hygrothermal performance for...

The abundance of straw in Quebec makes this material an interesting insulation option to reduce the energy consumption buildings. At same time, bales has good hygrothermal properties and high thermal inertia can provide a comfortable living experience for occupants. However, due slightly higher conductivity compared common insulations, walls are found be 30-90% thicker, which lead moisture-related problems especially under humid cold outdoor climate. Therefore, split-insulation wall...

For accurate estimation of radiation dose from radon exposure in a copper mine, the size distributions aerosols different areas mine lane were analyzed. The distribution accumulated was analyzed according to method screen diffusion battery, for coarse mode estimated based on size-selective measurements mass concentrations measured by personal aerosol monitors. results showed that significantly varied working and human activities. widely distributed while nucleation negligible. Theoretical...