Materials Literature
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Compartmentalization is good security-engineering practice. By breaking a\nlarge software system into mutually distrustful components that run with\nminimal privileges, restricting their interactions to conform to well-defined\ninterfaces, we can limit the damage caused by low-level attacks such as\ncontrol-flow hijac…
Вивчено особливості структурного стану і деформаційного рельєфу зразків матричного алюмінієвого сплаву 1933. Встановлено, що зерномежеве проковзування інтенсивно здійснюється як по великокутових межах ультрадрібних зерен, так і по малокутових межах великих полігонізованих зерен, паралельних осі розтягу зразка. Обговор…
The emergence of smart materials has urged design education to keep up and take part in introducing them to design students. There has been a great deal of work on teaching conventional materials like wood, metal and polymers in product design. Yet when it comes to learning smart materials, the sources are very limite…
Poly-lactide acid (PLA) based biodegradable films are of interest for packaging materials or bioapplications. Plasma-assisted vacuum evaporation technique uses oligomers released during thermal decomposition of source polymer as precursors for plasma polymerization. Conventionally prepared PLA with mw = 10000 g/mol wa…
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Liquid insulation on high voltage equipment is used as the cooling medium of power equipment. If the applied voltage exceeds the dielectric strength of the insulation liquid, breakdown voltage will occur which signifies insulation failure. To identify the opportunity ofreutealistrisperma oil as an alternativetransform…
Particle size is one of the important parameters that determine the characteristics (and applicability) of silica nanoparticles. An accurate sizing technique is therefore required for quality control during the synthesis of silica nanoparticles. Unlike other sizing techniques, the field‐flow fractionation (FFF) provid…
The collision of a single Pt nanoparticle (NP) was observed by an electrocatalytic amplification method. A Au ultramicroelectrode (UME) is usually used for the detection of Pt single NP collisions. The transient current response of the colliding Pt NP with the Au UME was observed as a staircase response. However, the…
Two new lead(II) mixed-ligand coordination polymers, [Pb(PNO)(SCN)]n (1) and [Pb(PNO)(N3)]n (2), (HPNO=picolinic acid N-oxide) were synthesized by a sonochemical method and characterized by scanning electron microscopy, X-ray powder diffraction, IR spectroscopy and elemental analysis. Compounds 1 and 2 were structural…
For biodegradable porous scaffolds to have a potential application in cartilage regeneration, they should enable cell growth and differentiation and should have adequate mechanical properties. In this study, our aim was to prepare biocompatible scaffolds with improved biomechanical properties. To this end, we have dev…
The mammalian hyaluronidase degrades hyaluronic acid by the cleavage of the β-1,4-glycosidic bond furnishing a tetrasaccharide molecule as the main product which is a highly angiogenic and potent inducer of inflammatory cytokines. Ursolic acid 1, isolated from Prismatomeris tetrandra, was identified as having the pote…
Direct-reading instruments have been widely used for characterizing airborne nanoparticles in inhalation toxicology and industrial hygiene studies for exposure/risk assessments. Instruments using electrical mobility sizing followed by optical counting, e.g., scanning or sequential mobility particle spectrometers (SMPS…
In this study, we determine the activity concentrations of natural radionuclides, 238U, 232Th and 40K, in soil from solid mineral-hosted site. The dose rates were calculated and radon concentration in the ground water system was measured. The radionuclides were determined using the HPGe detector-driven gamma spectrome…
Classical molecular dynamics simulation of GB1 peptide (a 16-residue β-hairpin) in different osmotic environments is studied. Urea is used for denaturation of the peptide, and trimethylamine-N-oxide (TMAO) is used to offset the effect of urea. Protein-urea electrostatic interactions are found to play a major role in p…
Ab initio calculations show that with increasing N-vacancy content of Mo 1- x Al x N y solid solutions, the cubic structure is increasingly preferred over the wurtzite-type hexagonal structure. While Mo 1- x Al x N solid solutions, without N-vacancies, energetically favor the wurtzite-type structure over the whole com…
Breslow intermediates, first postulated in 1958, are pivotal intermediates in carbene-catalyzed umpolung. Attempts to isolate and characterize these fleeting amino enol species first met with success in 2012 when we found that saturated bis-Dipp/Mes imidazolidinylidenes readily form isolable, though reactive diamino e…
Waste-wood derived biochar was evaluated for the first time as both an anode and cathode material, simultaneously, in an overflow style microbial fuel cell (MFC) using actual industrial wastewater. Results show that the average chemical oxygen demand (COD) removal was 95% with a reduction rate of 0.53 kg·COD·m−1·d−1 i…
Ni(7.5 wt.%)/CeO2 and Ni(7.5 wt.%)-Rh(0.5 wt.%)/CeO2 powders (previously prepared by solution combustion synthesis) were washcoated on cordierite monolith and alumina open-cell foam by means of support dip-coating into acid-free catalyst dispersion. Catalytic performances toward the steam reforming (SR) and the oxy-st…
Pastes of white Portland cement (wPc) and wPc-pulverized fuel ash (pfa) blends were studied up to 13 years. The reaction of wPc with water was initially retarded in the presence of pfa particles but accelerated at intermediate ages. Reaction with KOH solution was rapid with or without pfa. A universal compositional re…
Collagen fibrils type I display a typical banding pattern, so-called D-periodicity, of about 67 nm, when visualized by atomic force or electron microscopy imaging. Herein we report on a significant shortening of the D-period for human corneal collagen fibrils type I (21 ± 4 nm) upon air-drying, whereas no changes in t…