Materials Literature
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The paper describes the simulation of impact of jacketed projectiles on steel armour plates using explicit finite element analysis as implemented in LS-DYNA. Validation of numerical modelling includes a comprehensive mesh convergence study leading to insights not previously reported in literature, using shell, solid,…
This paper presents the main industrially relevant results from a joint academic and industrial venture to develop ring-opening Pt−Ir catalysts for upgrading HDT-LCO into a high-quality diesel-blending component. The influence of the support (alumina-bound CeO 2, γ-Al 2 O 3, and boehmite) and preparation method (micro…
Purpose To investigate the effects of the infra‐red power level on sintering behaviour in the high speed sintering (HSS) process. Design/methodology/approach Single‐layer parts were produced using the HSS process, in order to determine the effect of the infra‐red power level on the maximum achievable layer thickness,…
Diethyl ether added as an entrainer (cosolvent) to near- and supercritical CO2 significantly enhanced the enantioselectivity of photocyclization of 5,5-diphenyl-4-penten-1-ol sensitized by saccharide naphthalenedicarboxylate to give a cyclization product in enantiomeric excesses much larger than those obtained in conv…
Short peptides that recognize the alpha form of poly( l-lactide) (PLLA) crystalline films were identified from a phage-displayed peptide library. An enzyme-linked immunosorbent assay (ELISA) revealed that the apparent binding constants of the phage clones for the alpha form of PLLA were greater than those of the unsel…
The aim of the present study is to evaluate the effect of ethanolic extract of leaves of Leptadenia reticulata leaves (LELR) against Dalton’s Ascitic Lymphoma (DAL) in Swiss Albino mice. DAL cells were injected intraperitoneally (106 cells/mouse) to the mice. Two days after cells injection the animals were treated wit…
Enzymes were directly encapsulated in microtubes fabricated by coelectrospinning. Coelectrospinning makes it possible to separate between an organic phase, which may be harmful to enzyme activity, and an aqueous one. In this report, enzymes were incorporated in an aqueous core solution of poly(ethylene oxide) (PEO) wh…
Copper nanoparticles with a diameter of 3.0 ± 0.3 nm were generated under vacuum, using a sputtering−aggregation source, and deposited onto glass or highly ordered pyrolytic graphite substrates. Upon exposure to room-temperature air, core−shell particles formed, as determined by surface plasmon resonance spectroscopy,…
Amine-borane adducts are promising compounds for use in hydrogen storage applications, and the efficient catalytic release of hydrogen from these systems has been recently demonstrated. However, if hydrogen storage is to be of practical use, it is necessary that, once hydrogen has been removed from the material, it ca…
Polyurethane−urea microcapsules with limonene oil as the active agent were produced by interfacial polymerization, and their suitability for textile applications was studied. Experimental conditions for the textile substrates impregnation were based on industrial requirements and set up at laboratory scale using a min…
We report a direct synthesis of ultrasmall c(RGDyK) peptide-coated Fe3O4 NPs (<10 nm in hydrodynamic diameter) and demonstrate their in vivo tumor-specific targeting capability. The Fe3O4 NPs are synthesized by thermal decomposition of iron pentacarbonyl in the presence of 4-methylcatechol (4-MC), and the peptide is c…
Purpose – The purpose of this paper is to study the corrosion of the coupling of two different types of stainless steel, austenitic and ferritic, used in the fabrication of water reservoirs in the solar energy industry.
This article reports the deposition of ZnO thin films in supercritical CO 2 solutions likely for the first time. Zincacetylacetonate was dissolved in supercritical CO 2 , together with oxygen, and was processed at 8–13 MPa and 230–380 °C. Continuous crystalline films were obtained on Si and sapphire at temperatures hi…
Abstract Cooling a solution of a crystalline polyolefin from 140°C to room temperature causes the dissolved polymer to crystallize. If a laser beam passes through this solution, the crystallization will cause the beam to scatter, which thereby decreases the intensity of the beam. With this principle, it is possible to…
We have investigated the effects of nitrogen vacancies (V N ) induced by Mn doping on the electronic structure and transport properties of (Ga,Mn)N films grown by metal organic chemical vapour deposition (MOCVD). The significant increase in n-type carrier concentration in the (Ga,Mn)N film is attributed to the additio…
Electronic structures of Cr-based chalcogenide magnetic semiconductors FeCr 2 Se 4 and Fe 0.5 Cu 0.5 Cr 2 Se 4 are investigated by using the full-potential augmented plane wave (FLAPW) band method in both the generalized gradient approximation (GGA) and the GGA+ U (GGA incorporating the on-site Coulomb interaction). T…
The microcapsules with entrapped herbal water-soluble extracts of plantain Plantago major and calendula Calendula officinalis L. (PCE) were prepared by layer-by-layer (LbL)-adsorption of carrageenan and oligochitosan onto CaCO 3 microparticles with their subsequent dissolving after the treatment of EDTA. Entrapment of…
One of the most challenging problems in SOFC is the thermal compatibility of materials. Mechanical failure, or cathode delamination induced performance degradation, is related to local heat generations. An accurate measurement of spatial temperature distribution with correlated electric current provides good informati…
Abstract Nanocomposites of photocurable epoxy resin and epoxy‐modified iron oxide magnetic nanoparticles were analyzed by dielectric relaxation spectroscopy to study the local dynamics at temperatures well below the glass‐transition temperature. Two secondary processes were detected, β and γ processes, but the second…
A large magnetoresistance (MR) is observed in a double helical CoMnSi compound over the entire temperature region from 5 K to the maximum measuring temperature of 380 K, with the largest MR ratio of −18.3% at 245 K and the smallest MR ratio of −5.5% at 85 K at 5 T. This phenomenon is ascribed to two different mechanis…