Materials Literature
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The design and fabrication of graded-refractive-index (GRIN) antireflection (AR) coatings with wide-angle and broadband characteristics are demonstrated. The optimization of the graded-index profiles with a genetic algorithm is used in the design of the GRIN AR coatings. The average reflectance over a wavelength range…
The mechanisms of intrinsic luminescence in the set of molybdate crystals of MIMIII(MoO4)2 (MI = Li, Na, K; MIII =Bi, Y, Fe) type are revealed in complex experimental and theoretical studies. The luminescence spectroscopy under vacuum ultraviolet (VUV) synchrotron excitations is applied together with the electronic st…
The thermal conductivity of iron-based superconductor CsFe${}_{2}$As${}_{2}$ single crystal (${T}_{c}=1.81$ K) was measured down to 50 mK. A significant residual linear term ${\ensuremath{\kappa}}_{0}/T=1.27$ mW K${}^{\ensuremath{-}2}$ cm${}^{\ensuremath{-}1}$ is observed in zero magnetic field, which is about 1/10 of…
This paper examines the direct current (DC) icing flashover performance of typical DC porcelain, glass, and composite insulators in a complex environment of high altitude, icing, and pollution. The effects of the insulator string length, ice thickness, pollution level, freezing water conductivity, air pressure, and ar…
The glutathione-conjugated bovine serum albumin (BSA) nanoparticles were constructed in the present exploration as a novel biodegradable carrier for brain-specific drug delivery with evaluation of its in vitro and in vivo delivery properties. BSA nanocarriers were activated and conjugated to the distal amine functions…
Polyaniline nanofibres were synthesized using a economical and environment friendly SILAR method. As deposited polyaniline thin films were characterized for their structural, morphological and electrochemical properties. FT- IR study confirms the polymerization of aniline onto glass substrates. Amorphous, hydrophilic…
Large quantities of irradiated graphite waste from graphite-moderated nuclear reactors exist and are expected to increase in the case of High Temperature Reactor (HTR) deployment [1, 2]. This situation indicates the need for a graphite waste management strategy. Of greatest concern for long-term disposal of irradiated…
The effects of additives of single-walled carbon nanotubes prepared via electric-arc synthesis and carbon nanofibers produced via gas-phase synthesis on the crystallization capacities and mechanical and electric properties of composite films of a thermoplastic polyimide (PI) matrix based on 1,3-bis-(3,3′, 4,4′-dicarbo…
As engineered nanomaterials (NMs) are continually introduced into commercial markets, some of them may be eventually released into the aquatic environment during their product life-cycles. This article aims to provide a comprehensive review on the processes which ultimately govern the toxicity of NMs to aquatic organi…
Three wetting methods are frequently used for polluted insulators in artificial fog tests, i.e. cold fog, steam fog and mixture fog. IEC recommended the steam fog wetting method. However, experimental experience shows that, it is difficult to control wetting time with this steam input rate. In addition, the temperatur…
The FT-IR, FT-Raman and FT-NMR spectra of the compound 4-(4-Fluoro-phenyl)-1H-imidazole (4-FPI) were recorded and analyzed. Density functional method (B3LYP level with the 6–311G(d, p) and 6–311++G(d, p) and cc-pVQZ as basis sets) has been used to compute optimized geometry, vibrational wavenumbers of the 4-FPI. Only…
Mesoporous SBA-15 silica materials were grafted with trialkylsilyl compounds having short (C1) and long (C8) carbon chain and characterized by XRD, N2 physisorption analysis, 29Si MAS-NMR and contact angle (CA) measurements. A drastic enhancement of the hydrophobic property after grafting was observed by forced intrus…
This review highlights the current status on the synthesis and applications of mesoporous silica spherical particles. Mesoporous silica spherical particles are expected to be applied in various fields and the properties depend on the size and size distribution. Many researchers have been working on the synthesis of me…
Presently, an increasing number of gas insulated switchgear (GIS) has been operated for longer than 30 years, which is generally considered their service life. The degradation in solid insulators is considered to be one of the key factors determining the service life of such highly aged GIS in terms of insulation. Und…
The effects of substituting Mg on the structural, magnetic, and magnetostrictive properties of cobalt ferrite have been investigated. Comparable values of lattice parameter were obtained for the Mg-substituted samples. Saturation magnetization continuously decreased with increase in Mg concentration. Peak-to-peak magn…
Through zone melting method, a certain amount of Te nano precipitations were in situ generated in the p-type BiSbTe matrix because of the addition of graphene. Both the microstructure and thermoelectric performance were investigated. Increased carrier concentration was obtained to improve the electrical performance, a…
Tributyrin, a triglyceride analog of short chain fatty acid butyrate, can act as a prodrug of an anticancer agent butyrate. In view of other reports that demonstrated the improved characteristics of conventional liposomes by incorporating small amount of non-phospholipids such as Tween 80, herein we sought to investig…
Due to the unique structure and special physical and chemical properties, carbon nanotubes (CNTs) have potential applications in supercapacitors. Recently, CNTs and their composites as a kind of supercapacitor electrode material have been made many achievements. In this paper, a CNTs/TiO2 composite was prepared succes…
A reproducible p-type P-N codoped ZnO [ZnO:(P, N)] film with high quality was achieved by magnetron sputtering and post-annealing techniques. It has room-temperature resistivity of 3.98 Ωcm, Hall mobility of 1.35 cm2/Vs, and carrier concentration of 1.16 × 1018 cm−3, which is better than electrical properties of the p…
Cerium-doped zinc sulfide nanorods with flower-shaped morphology have been successfully synthesized in air atmosphere through simple chemical precipitation method. The incorporation of Ce 3+ was confirmed by X-ray diffraction and energy-dispersive spectrum. The doping of Ce 3+ ions has significant influence on the opt…