Materials Literature
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Lithium–sulfur batteries are still characterized by the low intrinsic electronic conductivity of sulfur in both its charged state (S8) as well as discharged state (Li2S). Here, using ball milling, a well‐dispersed active material within the carbon network is achieved using carbon black Super C65 and synthetic graphite…
Abstract Because of its large Fermi velocity, leading to a great mobility, graphene is expected to play an important role in (small signal) radio frequency electronics. Among other developments, graphene devices based on Klein tunneling phenomena have already been envisioned. The connection between the Klein tunneling…
New tools for monitoring response to primary melanoma treatment are needed to reduce recurrence rates and patient anxiety. A previously developed plasma-based microRNA signature (MEL38) was measured in four melanoma patient samples obtained before and 12-14 days after treatment (i.e. surgical excision), as well as in…
Reverse logistics stands out as a rapidly gaining concept due to its contribution to both the environment and the economy. There are many problems with reverse logistics. The decision of recovery options is a fundamental issue that serves many purposes. Choosing the right recovery option will also provide the environm…
We investigate how the dimensionality of the embedding space affects the microscopic crackling dynamics and the macroscopic response of heterogeneous materials. Using a fiber bundle model with localized load sharing, computer simulations are performed from one to eight dimensions slowly increasing the external load up…
InGaN/GaN nanowire arrays (NWA) exhibit efficient photoluminescence (PL) in the green spectral range, which extends to temperatures well beyond 200 °C. Previous work has shown that their PL is effectively quenched when oxidizing gas species such as O 2, NO 2, and O 3 abound in the ambient air. In the present work we e…
single crystal. The permittivity of the sample fabricated by Spark Plasma Sintering is as high as that of the single crystal. The role of the signal-to-noise ratio in the measurements at terahertz frequency is detailed.
To investigate the flow stress, microstructure, and usability of TA15 titanium alloy, isothermal compression was tested at 1073–1223 K and strain rates of 10, 1, 0.1, 0.01, and 0.001 s−1, and strain of 0.9. The impact of strain and temperature on thermal deformation was investigated through the exponent-type Zener–Hol…
Different mesoporous sizes of oxides, silica, alumina, titania, and zirconia were made by changing calcination temperature, and mixed catalysts, the mixtures of the oxides and microporous zeolite, were prepared. Conversions of n -dodecane using the β zeolite-mixed catalysts were much higher than those of the Y zeolite…
When prestressing tendons are corroded, a bridge owner must decide whether to replace or repair them. If this decision must be based on a destructive inspection method, section losses in the steel strands must be estimated by measuring either the corrosion depth or the perimeter of the corrosion area. For this study,…
The objective of this study was to investigate the effect of the physiological parameters (pH, buffer capacity, and ionic strength) of the gastrointestinal (GI) fluid on the dissolution behavior of the class II weakly acidic (BCS class IIa) drug valsartan. A series of in vitro dissolution studies was carried out on Di…
The effect of the Mn addition on the oxidation resistance of high purity Nb containing 19% Cr ferritic stainless steels has been studied using specimens isothermally oxidized in air at temperatures from 1073 to 1273 K. The structures of the scale and the scale/metal interface were investigated in detail by means of FE…
The slow kinetics of the oxygen evolution (OER) and oxygen reduction (ORR) reactions hamper the development of renewable energy storage and conversion technologies. Transition-metal oxides (TMOs) are cost-effective replacements to conventional noble metal catalysts for driving these electrochemical systems. Strain is…
Abstract Photocontrolled, targeted and biocompatible supramolecular nanoparticles were constructed through the host‐guest interactions of 2‐nitrobenzyl ester‐linked β‐cyclodextrin and adamantane‐grafted hyaluronic acid (HA). In this system, we used HA and 2‐nitrobenzyl ester as targeting and photoresponsive groups, re…
Etching treatment for acrylonitrile butadiene styrene (ABS) resin and electroless nickel plating process have been studied. The ABS first was etched in a chromium‐free potassium permanganate etching system with different etching times. Scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT‐IR)…
Titanium and silver atoms were magnetron-sputtered either onto pentaerythritol ethoxylate (PEEL) or 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (BMIMTFSI) ionic liquid (IL), and the formation of nanoparticles (NPs) is discussed based on the chemical interaction between the metal atoms and the host l…
The thermal conductivity of the cuprate superconductor La 1.6-x Nd 0.4 Sr x CuO 4 was measured down to 50 mK in seven crystals with doping from p 0.12 to p 0.24, both in the superconducting state and in the magnetic field-induced normal state. We obtain the electronic residual linear term 0 =T as T 0 across the pseudo…
The simultaneous carbonization of thousands of fibers in a horizontal furnace may result in fused fibers if carbonization residuals (tars) are not removed fast enough. The optimized purge gas flow rate and a small degree angle in the furnace position may enhance the yield of high quality carbon fibers up to 97% by rem…
In the present work, the resistive switching (RS) properties of Ag/SiCN/Pt and W/SiCN/Pt devices having electrochemically active (Ag) and inactive (W) top electrodes have been systematically investigated. Both devices revealed stable and reproducible bipolar resistive switching characteristics. The W/SiCN/Pt device ex…
With the assistance of solvated aluminum cation as the template, a novel iodoargentate was successfully constructed. The two-dimensional anionic framework displays high performance on cationic dye methylene blue (MB + ) capture with good efficiency and selectivity via ion exchange. Moreover, the adsorbed MB + can be r…