Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Er 4 NiCd crystallizes with the Gd4RhIn type structure, space group F4¯3m, a=1333.3 pm. The nickel atoms have trigonal prismatic rare earth coordination. Condensation of the NiEr6 prisms leads to a three-dimensional network which leaves voids that are filled by regular Cd4 tetrahedra. Er4NiCd shows Curie–Weiss behavio…
The characterization of diamondlike carbon (DLC) films is a challenging subject, considering the diversity of carbon-based nanostructures depending on the deposition process. We propose to combine multiwavelength (MW) Raman spectroscopy and electron energy-loss spectroscopy (EELS) to probe the structural disorder and…
Zinc oxide/magnesium oxide nanocomposite powders were prepared by wet impregnation of nanosized magnesia powders. The supporting magnesia was obtained by precipitation from a solution of magnesium nitrate. The samples are characterized by a nominal (i.e. calculated from the weighted amount of precursors) Zn/Mg atomic…
Abstract Porcine dermal collagen is successfully digested by clostridium histolyticun collagenases (CHC) at varying compositions and conditions. Collagen fragments thus prepared, with significantly low molecular weight but visible denaturation temperatures and/or triple helix structures, may be useful for clinical app…
Enzymes are mostly used for bio-polishing process of fabrics which remove the pills and fuzz from fabric surface in order to improve the smoothness. Fabric properties mainly depend on the yarn properties and the yarn arrangements in the fabric construction. In this study, the effects of bio-polishing process on the pe…
Abstract The effects of surfactants on bentonites have been of great scientific interest for many years. Even though quaternary alkylammonium salts (QAS) have been studied, very few data are available on the comparative performance of different chain-length QAS for the modification of the surface properties and adsorp…
Magneto dielectric material using nano cobalt ferrite inclusions is prepared as potential substrate for microstrip antennas. Permittivity characterization at microwave frequency (8.7- 12.1 GHz) is conducted using an in touch superstrate method. Test set-up consists of microstrip antenna designed over glass epoxy subst…
Cryopreservation by freezing is usually employed for storage of allogeneic valves destined for clinical use; however, disruption of leaflet extracellular matrices by ice may occur. This study was performed to determine the effects of cryoprotectants employed in VS55 for ice-free, vitreous cryopreservation upon adheren…
Abstract Summary: Polyaniline (PANI) composites were prepared with both unmodified and amine modified MWCNTs with and without BaTiO 3 through in‐situ oxidative polymerization. Uniform coating of PANI on the MWCNTs and BaTiO 3 surfaces was found which was evident from the Field Emission Scanning Electron Microscopic (F…
The adsorption of atomic hydrogen on graphene monolayer is considered using the model density of states (M model). Analytical expressions for the density of states of H adatom and its occupation number n a are obtained. The main (local) contribution n l to the total occupation number n a is due to a local level of the…
In this work, the influence of Reynolds number (Re) on the galvanic corrosion of the copper/AISI 304 stainless steel pair in an 850 g/L lithium bromide solution was evaluated in a hydraulic circuit using a zero-resistance ammeter; this technique has the advantages that it can be used without disturbing the system unde…
In this paper, we present a graphical computer-aided design (CAD) environment for the design, analysis, and layout of carbon nanotube (CNT) field-effect transistor (CNFET) circuits. This work is motivated by the fact that such a tool currently does not exist in the public domain for researchers. Our tool has been inte…
The interfacial chemistry of the impregnation step involved in the preparation of nickel catalysts supported on titania is presented. Several methodologies based on deposition data, pH measurements, potentiometric mass titrations, and microelectrophoresis have been used in conjunction with diffuse reflectance UV/Vis/N…
Measurements of specific heat, resistivity, and magnetic hysteresis loop were performed on high-quality Fe 1.04 Te 0.60 Se 0.40 single crystal. The exponential decay of the specific heat of the sample can be well described by the BCS-weak coupling theory. The resistive upper critical fields H c 2 were extracted with t…
Abstract Aim of the present study was to establish methods for the evaluation of biocompatibility and degradation behaviour of coated magnesium sponges in cancellous bone. So bioglass coated sponges of the magnesium alloy AX30 were implanted into the femurs of rabbits for an observation period of 6, 12 and 24 weeks, r…
Ammineite, CuCl 2 (NH 3 ) 2 , the first mineral containing an ammine complex, was discovered at Calleta Pabellon de Pica, Tarapaca region, Chile. The mineral is named for the first described ammine complex as naturally occurring crystals. Ammineite occurs as hypidiomorphic mm-sized blue crystals and also as powdery ma…
We have experimentally demonstrated block copolymer lithography in conjunction with optical lithography features on dimensional scales close to the natural pitch of the self-assembling block copolymer. Within this context, the inherent self-assembled shape, size and arrangement will self-adjust to accommodate the exte…
Larvae of many holometabolous insects possess abdominal appendages called prolegs. Lepidoptera larvae have prolegs in the segments A3-A6. Functions of Lepidoptera hox genes on these abdominal appendages development is still a controversial issue. In this article, we report the use of double strand RNA (dsRNA)-mediated…
This paper describes a new approach to the realization of reconfigurable CMOS-compatible RF inductors using programmable vias made from phase-change (PC) materials. Reversible reconfiguration of a custom-fabricated inductor prototype is demonstrated using voltage pulses to transform (by Joule heating) the PC switch be…
The pseudogap state is one of the peculiarities of the cuprate high-temperature superconductors. Here we investigate its presence in BaCo x Fe 2− x As 2 , a member of the pnictide family, with temperature-dependent scanning tunneling spectroscopy. We observe that for under, optimally and overdoped systems the gap in t…