Architecting highly hydratable polymer networks to tune the water state for solar water purification
under 1 sun. The h-LAH-based solar still also exhibits long-term durability and antifouling functionality toward complex ionic contaminants.
Materials Literature
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Translucent Glass Roofs For Large-Span Coverings
The article deals with the issues of glass use in the enclosing structures of large-span coverings, which have such advantages as ensuring the penetration of natural light, tightness, minimum labor costs for repair and maintenance. Design shortcomings: the high cost, the need for protection of the internal volume agai…
Improving dielectric properties and suppression of partial discharges in fiber/thermoset-matrix composites by polymeric nanofibers
The polymeric nanofibrous layers as a new material for possible improving dielectric properties and suppression of partial discharges in fiber/thermoset-matrix composites are introduced in this paper. Electrospun nanofibers made from polybenzimidazole (PBI) and polyimide (PI) were incorporated into the structure of th…
Technical and economic analysis of copper utilization on new windings of repaired distribution transformers originally designed for aluminum
This paper aims to analyze, technically and economically, the benefits of the copper utilization on new windings of repaired distribution transformers, originally designed for aluminum. Three commercial single-phase distribution transformers commonly installed on urban and countryside areas of Brazil were submitted to…
Atomic Layer Etching (ALE) of WSe2 Yielding High Mobility p-FETs
The layer-dependent electronic band structure of transition metal dichalcogenides (TMDCs) enable a plethora of novel electronic and optoelectronic devices [1], [2]. Generally, TMDCs with various thicknesses are produced by mechanical and chemical exfoliation from bulk crystals [3], [4]. Although exfoliated flakes have…
2D Non-radiating Sources in Mie Scattering and Inverse Problems
Since the early work on a set of theorems to define a general class of non-radiating currents [1], a growing recent interest has been established towards non-radiating sources as the fundamental mechanism behind invisibility cloaks or as a degree of freedom in the design of antenna elements. By imposing the zeros of t…
Gate-Tunable Ultrafast Optical Response of Single-Layer Graphene
Summary form only given. The ultrafast relaxation dynamics in single-layer graphene (SLG) is of key importance for its applications in optoelectronic devices which rely on the dynamic response of charge carriers, such as photodetectors, saturable absorbers and modulators[1]. The absorption via interband transitions of…
Bionanoscaffolds-Enabled Non-Wetting Surfaces for Antibiofouling Applications
This paper presents biological nano-scaffolds (BNS)-assisted formation of non-wetting polymeric surfaces with excellent antibiofouling performance. Particularly, Tobacco mosaic virus (TMV)-templated metallic nanoscaffolds, self-assembled on Au substrates followed by a simple spin-and-dry coating of a fluorinated polym…
Advances in Manufacturing of Biodegradable Spinal Cord Implants on Microscale through Micromolding and 3D Printing
Spinal cord injury is a life changing event potentially leading to permanent paralysis. This paper presents advances in developing an implant for spinal cord treatment called mechanical microconnector system (mMS). A micromolding process was developed to transfer the mMS from biocompatible to biodegradable material. T…
Enhanced Breakdown Strength by Ion Substitution in Lead-free BaTi0.895Sn0.105O3–based Ceramics
A lead-free (1-x)BaTi0.895Sn0.105O3-xBi(Mg0.5Zr0.5)O3(1-x)BTS-xBMZ (x=0-0.2) bulk ceramics were triumphantly synthesized using a traditional solid-state reaction technology. The X-ray diffraction (XRD) result reveals a single perovskite structure for lead-free ceramic samples of all sintered. The sintering step shows…
Micro‐/Mesoporous Materials: Guided Assembly of Microporous/Mesoporous Manganese Phosphates by Bifunctional Organophosphonic Acid Etching and Templating (Adv. Mater. 25/2019)
Porous transition-metal compounds that are highly redox-active show excellent potential as active components for applications, such as electrocatalysts for energy conversion and electrodes for energy storage. In article number 1901124, John Wang and co-workers obtain highly ordered microporous and uniform mesoporous m…
Fundamentals of brittle failure at the atomic scale
International audience
Thermal Imaging for Rapid Noninvasive On-site Insulation Diagnostics
High voltage electrical failures are dangerous and costly events in any type of power system. The troubleshooting and diagnostic time required to identify and locate these failures can be significant. Partial discharge is one of the early warning signs for electrical degradation. In insulation systems, partial dischar…
A review of methods for preparing superhydrophobic surfaces on paper
In recent years, superhydrophobic surfaces have been widely used in many fields due to their good performance. Paper and paperboard are widely used as environmentally friendly materials in the packaging field, but the hydrophilicity of the fibers and the porosity of the paper limit the development of paper in the fiel…
THE Effect of Azido-Starch as Filler on Tensile and Tear Properties of Natural Rubber Latex Films
Abstract The azido starch/Natural Rubber (azo-starch/NR) latex films were prepared with control (0), 0.5, 1.0, 1.5 and 2.0 phr of azido-starch loadings. The azido starch functional groups were characterized by Fourier Transform Infra- Red (FTIR) analysis to observe the presence of significant peaks of azide (N3).The c…
Investigations on physiochemical and third-order nonlinear optical studies on quinolinium based organic crystal
Newly identified organic single crystals of 8-hydroyquinolinium 2-chloro 4-nitrobenzoate (HQ2ClNB) were grown by the slow evaporation solution growth technique (SEST) using methanol as a solvent. It crystallizes in monoclinic crystal system with a space group of P21/c. Crystalline nature and phases were confirmed by p…
Using electrostatic energy analyzer of a plane of symmetry for recording field emission spectra from carbon nanotube array
Abstract In this paper, the possibility is discussed of using electron emission spectroscopy to study low voltage field emission phenomenon. While using an electrostatic electron energy analyzer with the plane of symmetry, electron energy spectra were recorded with the energy resolution of ΔE ≈ 10-30 meV. The energy a…
Apparent diffusion coefficients of Cs and I in hardened cement paste using mineral admixtures
鉱物質混和材（フライアッシュ:FA，高炉スラグ微粉末:BFS，シリカフューム:SF）を用いた水セメント比50 %および30 %の材齢28日のセメントペースト硬化体を作製し，CsおよびIの見掛けの拡散係数（Da）を，電子線プローブマイクロアナライザーを用いた方法により算定した．CsのDaの低減には，水セメント比50 %ではBFS，水セメント比30 %ではSFの使用が寄与した．IのDaの低減には，水セメント比50 %ではBFSの寄与が大きく，水セメント比30 %についてはその大きな変化が確認できなかった．SFを用いることによりCsの収着性の向上が見られ，BFSを用いることによりIの収着性が向上する傾向が確認された．これらのセメントペー…
Evaluation of DOPO and Nano-Silica Modified Epoxy Resin Systems as Low Viscous, Flame Retardant Additives for Infusion and Injection Processing of Carbon Fiber Reinforced Plastics
In the present study, a low viscous (complex viscosity between 200 to 500 mPas at 60 °C), flame retardant epoxy resin formulation is prepared and transferred to the carbon fiber reinforced plastic (CFRP) laminate using resin transfer molding (RTM) method. For the laminate production, a 12k carbon fiber fabric with an…
Tensile strength of concrete at early-age: New experimental procedure and influence of mix-design parameters
International audience