Materials Literature
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Reconfigurable bistate metasurfaces composed of interwoven spiral arrays with embeddedpindiodes are proposed for single and dual polarisation operation. The switching capability is enabled bypindiodes that change the array response between transmission and reflection modes at the specified frequencies. The spiral cond…
La-Mg alloys of different compositions were prepared by electrolysis of LaCl3-MgCl2-KCl melts. Different phases of La-Mg alloys were characterized by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Energy dispersive spectrometry (EDS) and Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES…
Compact PEM fuel cell system was developed for portable power generators. The power generator features a PEM fuel cell using a chemical hydride as a hydrogen source. The hydrogen generator extracts hydrogen using a catalytic hydrolysis from a sodium borohydride alkaline solution. A novel concept using an all-in-one re…
The photodegradation of irradiated thin films of poly (para-methylstyrene) with 265 nm radiations in the presence of airand as a function of irradiation time has been studied using UV-VIS, fluorescence and FT-IR Spectroscopic techniques. The influence of phthalate and terephthalate plasticizers on stability of poly (p…
Multiple polymorphs (anatase, brookite and rutile) of titanium dioxide nanoparticles (TiO 2 -NPs) with variable structures were quantified in environmental matrices via microwave-based hydrofluoric (HF) and nitric (HNO 3 ) mixed acid digestion and muffle furnace (MF)-based potassium hydroxide (KOH) fusion.
Dynamic asset rating is one of a number of techniques that could be used to facilitate low carbon electricity network operation. This paper focusses on distribution level transformer dynamic rating under this context. The models available for use with dynamic asset rating are discussed and compared using measured load…
The use of metal oxide single crystalline nanowires for chemical sensing of pollutant gases has been proposed as a reliable solution to ensure high sensor performance due to small size of the crystallites and good stability over long term operation at high temperature. To obtain enhanced sensing capabilities of ZnO nw…
The non-heme high-spin ferric iron hydroperoxo species formed in superoxide reductase catalyzes oxidative aldehyde deformylation through its nucleophilic character. This species also acts as an electrophile to catalyze oxygen atom transfer in sulfoxidation reactions, highlighting the oxidation potential of non-heme ir…
DNTF is the most sensitive to heat while DNAN has the best thermal stability.
From a ferrite/martensite cold-rolled microstructure, the interaction between ferrite recrystallization and austenite formation is investigated. It is observed that a slow heating rate promotes the ferrite recrystallization and a homogeneous microstructure, whereas a fast heating rate delays the recrystallization and…
The current work deals with the gas pressure infiltration of SiC - preforms of selected porosities with an aluminum alloy in order to manufacture an interpenetrating composite with higher ductility in comparison to SiC bulk material and a higher temperature and creep resistance in comparison to aluminum bulk materials…
We describe the fastest dyeing of TiO2 photo-electrodes for dye-sensitized solar cells reported to date (<2 min) at room temperature giving η = 7.5% for an N719-SQ1-CDCA mixture which is significantly higher than devices dyed for >12 h using the same dye mixture (η = 5.5%). Time-lapse photography has been used to moni…
Although several studies indicate high effectiveness in the use of the hydroethanolic extract from Tropaeolum majus (HETM) as a diuretic, the impact of its prolonged use in the presence of low estrogen levels remains unclear. Thus, the aim of this study was to investigate the diuretic effects of prolonged administrati…
Nu-6(1) zeolite, the lamellar precursor of NSI topology, was firstly synthesized with 4'4-bipyridine as the structure-directing agent (SDA) and then subjected to HCl-EtOH treatment for the purpose of structural modification. Interlayer deconstruction and reconstruction took place alternately in this acid treatment. An…
We synthesized three novel d 7 /d 10 metal complexes with 2,6-bis(3-pyrazolyl)pyridine and studied their surface photovoltage spectra and photocatalytic activities.
In this article, we show that efficiency gains related to the intellectual capital (IC) can raise the performances of the firm more than efficiency gains related to physical/financial capital (CE.) Furthermore, we show that this can be the case not only for knowledge–intensive firms but also for capital–intensive firm…
The organic–inorganic interfacial chemical composition and interaction have a critical influence on the performance of corresponding hybrid photovoltaic devices.
The viscosity of SiO2–Na2O–NaF melts was measured by using a rotating crucible viscometer developed by the authors. The basicity (= CNa2O/CSiO2 in mol%) of the melts was 0.67, 0.82, and 1.00. The concentrations of NaF were 5, 10, and 15 mol%. As a result, the viscosity of the melts showed a good Arrhenius type lineari…
High perpendicular magnetic anisotropy (PMA) has been observed in MgO/CoFeB/Ta thin films if the thickness of CoFeB is in the range between 1.1 and 1.5 nm. However, both the coercivity and remanence vanish when the thickness of CoFeB is less than 1.1 nm, indicating a characteristic of superparamagnetic state. The magn…
Magnesium‐containing mesoporous silica sieve (Mg‐MCM‐41) provided a suitable immobilization of biomolecule matrix due to its uniform pore structure, high surface areas, fast electron‐transfer rate, and good biocompatibility. Based on this, an amperometric biosensor was developed by entrapping laccase into the Mg‐MCM‐4…