Materials Literature
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The calculation of core losses in inductive components is difficult and has not yet been entirely solved. In particular, it is impossible to predict the influence of a dc premagnetization on the losses without extensive measurements. For this paper, different materials have been tested to gain information on how core…
Stimuli-responsive capsules are of interest in drug delivery, fragrance release, food preservation, and self-healing materials. Many methods are used to trigger the release of encapsulated contents. Here we highlight mechanisms for the controlled release of encapsulated cargo that utilize chemical reactions occurring…
Highly stable porous polymer networks (PPNs) are synthesized through Yamamoto homocoupling reaction between tetrahedral monomers. Among those polymers, PPN-4 shows exceptionally high Langmuir surface area of 10063 m2 g−1 (SABET: 6461 m2 g−1). It also exhibits ultra-high hydrogen (158 mg g−1), methane (389 mg g−1), and…
No abstract available
Temperature-driven metal-insulator and pressure-driven insulator-metal transitions observed in $(\mathrm{BEDT}\ensuremath{-}\mathrm{TTF}){}_{8}[{\mathrm{Hg}}_{4}{X}_{12}({\mathrm{C}}_{6}{\mathrm{H}}_{5}Y){}_{2}]$ with $X=Y=\mathrm{Br}$ are studied through band-structure calculations based on x-ray crystal-structure de…
In this study, high-melt-strength polypropylenes (PPs) were prepared by reactive extrusion of PP and varied amount of divinylbenzene in the presence of dicumyl peroxide and an antioxidant, and the dynamic rheological behavior, crystalline morphology, and fracture behavior of the resultant materials were investigated.…
Staff occupational exposure for (18)F-FDG studies has been assessed. For this purpose, different detectors, all traceable to PTB standards, have been used. Measurements were carried out in different working areas in the facility for different procedures and 400 MBq per patient standard injected activity. A radiologica…
Composites comprised of chitosan (CS) and multiwalled carbon nanotubes (MWCNTs) were fabricated by milling and ultrasonication dispersion methods. Scanning electron microscopy images showed homogeneous dispersion of MWCNTs throughout the CS matrix for samples prepared by either ultrasonication or milling methods. Furt…
The form of ethylene–propylene–rubber DC feeder cable faults can be attributed to insulation aging and mechanical insulation crack, while integrating the DC leakage current (DLC) signal, and track discharge (TD) signal could effectively detect such defaults online. Further research results about an online monitoring s…
Solid-state electrochemistry of a tetracyanoquinodimethane (TCNQ)-modified electrode in contact with a tetrapropylammonium cation (Pr(4)N(+)) electrolyte showed two electron-transfer steps to give Pr(4)N(TCNQ)(2) (1) and Pr(4)N(TCNQ) (2) rather than the traditional one-electron step to directly give Pr(4)N(TCNQ). Two…
Abstract In this study, Mg(OH) 2 (MH) was first modified by 1‐ n ‐tetradecyl‐3‐carboxymethyl imidazolium chloride ([C 14 cim]Cl), an imidazolium ionic liquid, and then the modified MH ([C 14 cim]Cl‐MH) was incorporated into linear low‐density polyethylene (LLDPE) by melt‐mixing to obtain the LLDPE/[C 14 cim]Cl‐MH comp…
Abstract In this study, we report the application of synchrotron radiation nanoprobe technique to the elemental analysis of single as‐grown and Co‐implanted ZnO nanowires. The nano‐X‐ray fluorescence technique enabled us not only to examine the spatial variation of Zn and Co elements, but also to disregard the presenc…
Alanes are critical intermediates in hydrogen storage reactions for mass transport during the formation of complex metal hydrides. Titanium has been shown to promote hydrogen desorption and hydrogenation, but its role as a catalyst is not clear. Combining surface infrared (IR) spectroscopy and density functional theor…
High-resolution Brillouin scattering experiments are performed under hydrostatic pressures ranging from 0 to 10 GPa in vitreous silica. The hypersound-attenuation coefficient exhibits a sharp maximum located at 2 GPa, which appears to coincide with the well-known minimum in sound velocity. Two main processes contribut…
The synthesis, crystal structure and magnetic characterisation by magnetisation and inelastic neutron scattering (INS) of a mixed-valent Mn(10) supertetrahedral aggregate [Mn(III)(6)Mn(II)(4)(μ(4)-O)(4)(μ(3)-N(3))(3)(μ(3)-Br)(Hmpt)(6)(Br)]Br(0.7)(N(3))(0.3)·2MeOH·3MeCN (1) (H(3)mpt=3-methylpentan-1,3,5-triol) is repor…
Phonons are exquisitely sensitive to finite length scale effects because they are intimately connected to charge, structure, and magnetism, and a quantitative analysis of their behavior can reveal microscopic aspects of spin-lattice interaction. To investigate these effects in a model correlated oxide, we measured the…
Purpose The purpose of this paper is to develop feasible composite electrodes with a long cycle life and large specific capacitance and to investigate optimal ratio between aniline and activated carbon materials. Design/methodology/approach PANI/AC composite electrode materials were synthesised by in situ polymerisati…
Mixing oppositely charged polyelectrolytes in aqueous solutions leads to the spontaneous formation of polyelectrolyte complexes. Here, we characterize the interaction between xanthan of two different chain lengths, a tri-glucosamine and a chitosan polymer by isothermal titration calorimetry (ITC). Analysis of the expe…
External electric field effects on absorption and photoluminescence (PL) spectra of colloidal CdTe nanoparticles have been measured in a poly(vinyl alcohol) (PVA) film. The electroabsorption spectra across the first exciton band are similar in shape to the second derivative of the absorption spectra, indicating the en…
Single-molecule photophysical properties of two families of linear porphyrin arrays have been investigated by single-molecule fluorescence detection techniques. Butadiyne-linked arrays (Z(N)B) with extensive π-conjugation perform as photostable one-quantum systems. This demonstration has been suggested by the long-las…