Materials Literature
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A novel technique to improve the focus depth of a Gaussian beam is presented in this paper. The improvement is based on two-step beam shaping using a cascade of binary phase diffractive optical elements (BPDOEs). The first BPDOE transforms the incident Gaussian beam into a high-order radial Laguerre–Gaussian beam (LGp…
The effect of fluoroalkylsilanes on tribological properties and wettability of Si-DLC coatings, Bystrzycka, E, Prowizor, M, Piwoński, I, Kisielewska, A, Batory, D, Jędrzejczak, A, Dudek, M, Kozłowski, W, Cichomski, M
Crack is one of the most common defects observed in reinforced concrete (RC) structures. An initial crack will lead to severe changes in the stress state when the structure subjected to blast loadings. Target on acquiring the dynamic data, a finite element method is applied to simulate the response of cracked RC slab…
Myocardial infarction is one of the leading causes of death all over the world. Mesenchymal stem cells (MSCs) transplantation has shown a promising potential to recovery of ischemic heart disease due to their capability in differentiating into cardiac cells. However, various investigations have been performed to optim…
OBJECTIVES: The aim of this research was to assess galvanic behavior of lingual orthodontic brackets coupled with representative types of orthodontic wires. MATERIALS AND METHODS: Three types of lingual brackets: Incognito (INC), In-Ovation L (IOV), and STb (STB) were combined with a stainless steel (SS) and a nickel-…
The bake hardening treatment shows great potential for increasing the yield strength of steel components for automotive applications. This study investigates the effects of bake hardening on the yield strength and ductility of an austenitic high‐Mn steel. In order to identify a promising process window, the prestrain,…
Sulfoiodide crystals possess promising properties and functionalities that would be used for technical applications in many areas. In this work, rod-like lead sulfoiodide (Pb 5 S 2 I 6 ) crystals with a length of about 3 mm have been fabricated via a rapid hydrothermal process at a temperature down to 160 °C for 10 h…
Abstract A one‐step strategy to obtain a high‐performance catalyst from Cr(VI)‐containing wastewater by the photoreduction process is described. ZrO2 is employed as a wide bandgap and high conduction‐band photocatalyst to reduce, capture, and immobilize Cr(VI) ions under UV light irradiation. The byproduct of this ste…
We present a theoretical study of the statics and dynamics of a partially wetting liquid droplet, of equilibrium contact angle $\unicode[STIX]{x1D703}_{e}$ , confined in a solid wedge geometry of opening angle $\unicode[STIX]{x1D6FD}$ . We focus on a mostly non-wetting regime, given by the condition $\unicode[STIX]{x1…
The Reverse Monte Carlo (RMC) algorithm for structure refinement has been applied to x-ray absorption spectroscopy (XAS) multiple-edge data sets for six gas phase molecular systems (SnI2, CdI2, BBr3, GaI3, GeBr4, GeI4). Sets of thousands of molecular replicas were involved in the refinement process, driven by the XAS…
The rigorous coupled-wave approach (RCWA) was implemented to investigate optical absorption in a triple-p-i-n-junction amorphous-silicon solar cell with a two-dimensional (2-D) metallic periodically corrugated backreflector (PCBR). Both total and useful absorptances were computed against the free-space wavelength λ0 f…
Three bis(triarylamine) dications bridged with 2,2′-bithienyl group ( 1 2+ ), biphenyl group ( 2 2+ ) and [2,2]paracyclophane ( 3 2+ ) have been successfully isolated. The electronic structures of 1 2+ – 3 2+ show bridge dependence. Magnetic studies and DFT calculations show that dications 1 2+ – 3 2+ possess an open-…
Indium tin oxide (ITO) is the premier choice for transparent conductive electrodes in optoelectronic devices despite its inherent brittleness. Here we report the fabrication of a grating-like structure that obviates ITO’s mechanical limitations while retaining its resistivity and optical qualities. ITO nanopatterned f…
Abstract Thermal decomposition of a nitroguanidine‐based propellant at different pressures was investigated under non‐isothermal conditions by high‐pressure differential scanning calorimetry (PDSC). It was found that only one visible exothermic peak appeared in DSC curves at the pressure. With the increase of the envi…
Three species of Clitopilus, C. albidus sp. nov., C. subscyphoides and C. orientalis, are described from Kerala State, India, based on morphology and molecular phylogeny. Comprehensive descriptions, photographs, and comparisons with phenetically similar and phylogenetically related species are provided. The RNA polyme…
Abstract We investigate with computer simulations the effect of applying an electric field on the water-to-ice transition. We use a combination of state-of-the-art simulation techniques to obtain phase boundaries and crystal growth rates (direct coexistence), nucleation rates (seeding) and interfacial free energies (s…
The structure and properties of poly( tert- butylstyrene- b -hydrogenated isoprene- b -sulfonated styrene- b -hydrogenated isoprene- b - tert- butylstyrene) (tBS-HI-SS-HI-tBS) films were investigated as a function of “wet–dry cycles”, where one “cycle” is defined as a 24 h soak in deionized water followed by a 24 h dr…
Four new spirostanol saponins, named pavitnosides A–D (1–4), with six known steroidal saponins 5–10 were isolated from the rhizomes of Paris vietnamensis. Their chemical structures were determined based on extensive spectroscopic studies and chemical methods. The aglycones of pavitnoside B and pavitnoside C were not r…
It has been discovered that the complex formed by cetyltrimethyl ammonium bromide (CTAB) and graphene oxide (GO) is highly stable in aqueous solution and adhesive to the glassy carbon electrode (GCE) surface in our previous research. In this work, the film of CTAB/GO complex was directly formed on GCE and gold nanopar…
Patterned arrays of self-assisted GaP nanowires (NWs) were grown on a Si substrate by gas source molecular beam epitaxy using various V/III flux ratios from 1-6, and various pitches from 360-1000 nm. As the V/III flux ratio was increased from 1-6, the NWs showed a change in morphology from outward tapering to straight…