Materials Literature
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We report on high-power operation of a cladding-pumped Er,Yb -doped broadband superfluorescent fiber source in the 1.55 μm spectral region. Over 16 W of single-ended amplified spontaneous emission output was generated employing a simple, all-fiber geometry without the use of a high reflectivity mirror or seed source.…
We present a chemical annealing process for organic thin films. In this process, a thin film of a molecular material, such as zinc tetraphenylporphyrin (ZnTPP), is exposed to a vapor of nitrogen-based ligand (e.g., pyrazine, pz, and triazine, tz), forming a film composed of the metal–ligand complex. Fast and quantitat…
This paper reports the results obtained for the degradation of acetaldehyde by an atmospheric plasma corona discharge working in a pulsed regime. It was shown that a few hundred ppm of acetaldehyde diluted in a pure N 2 gas flow can be removed up to 80% by a discharge fed with an electric power lower than 1 W. Under t…
Establishing a nanobiohybrid device largely relies on the availability of various bioconjugation procedures which allow coupling of biomolecules and inorganic materials. Especially, site-specific coupling of a protein to nanomaterials is highly useful and significant, since it can avoid adversely affecting the protein…
Efficient violet-blue-emitting molecules are especially useful for applications in full-color displays, solid-state lighting, as well as in two-photon absorption (TPA) excited frequency-upconverted violet-blue lasing. However, the reported violet-blue-emitting molecules generally possess small TPA cross sections. In t…
The major challenge for bone tissue engineering lies in the fabrication of scaffolds that can mimic the extracellular matrix and promote osteogenesis. Electrospun fibers are being widely researched for this application due to high porosity, interconnectivity, and mechanical strength of the fibrous scaffolds. Electrosp…
The results of an experimental study of the magnetoconductivity of two-dimensional (2D) electron gas caused by suppression of the interference quantum correction in a HgTe single quantum well heterostructure with an inverted energy spectrum are presented. It is shown that only the antilocalization magnetoconductivity…
The consolidated bioprocessing (CBP) of corn stover pretreated via ammonia fiber expansion (AFEX-CS) into ethanol was investigated in a microbial electrolysis cell (MEC) driven by the exoelectrogen Geobacter sulfurreducens and the CBP bacterium Cellulomonas uda. C. uda was identified in a screening for its ethanologen…
A robust algorithm, based on relaxation, is proposed for the implementation of the IEC Standard method for rating cables installed in unfilled troughs. Through hundreds of finite-element simulations, the validity range of the standardized equations is established. Studies are performed by varying the following paramet…
Density functional theory is used to evaluate geometric and electronic effects of the presence of vacancies in subsurface layers of Pt-based alloys composed by a monolayer of Pt on top of an alloy core for bimetallic Pt/PtM/Pt 3 M (M = Co, Pd, Ir, Cu) and trimetallic Pt/M1 3 M2 (M1, M2 = Pd, Cu; M1 ≠ M2) systems. Our…
Abstract An exceptionally rapid hydrogenation of nitrobenzene to aniline [TOF=252,000 h−1] over palladium containing MCM‐41 (Pd/MCM‐41) with excellent yield of >99% can be achieved in supercritical carbon dioxide at 50 °C and a hydrogen pressure of 2.5 MPa. It has been observed that this promising method preferred a s…
Pleural diseases (fibrosis and mesothelioma) are a major concern for individuals exposed by inhalation to certain types of particles, metals, and fibers. Increasing attention has focused on the possibility that certain types of engineered nanoparticles (NPs), especially those containing nickel, might also pose a risk…
In this paper, a novel power-based algorithm to discriminate between switching and internal fault conditions in power transformers is proposed and evaluated. First, the differential power signal is scrutinized and its intrinsic features during inrush conditions are introduced. Afterwards, a combined time-domain-based…
Two benzimidazole-based receptors (L 1 and L 2 ) bearing -OH functionality form crystalline salts with different organic and inorganic acids viz. [L 1 H + ][Cl – ] ( 1 ), [L 1 H + ][NO 3 – ] ( 2 ), [L 1 H + ][OAc – ] ( 3 ), [L 1 H + ][DNB – ]·DMF ( 4 ), [L 1 H + ][H 2 PO 4 – ] ( 5 ), [L 2 H + ][OAc – ]·AcOH ( 6 ), [L…
An energetic coordination compound, Cu(HATZ)(PDA)(H2O) (HATZ = 5-aminotetrazole, H2PDA = pyridine-2,6-dicarboxylic acid), has been synthesized and structurally characterized by single crystal X-ray diffraction. Copper(II) was coordinated by two oxygen atoms and nitrogen from PDA, one ring nitrogen of ATZ and one water…
The objective of this study is to develop nuclear heating measurement methods in Zero Power experimental reactors. This paper presents the analysis of Thermo-Luminescent Detector (TLD) and Optically Stimulated Luminescent Detectors (OSLD) experiments in the$\hbox{UO}_{2}$core of the MINERVE research reactor at the CEA…
The basic hypothesis of this article focuses on the study changes in mechanical properties of stainless steels XCr17Ni7MoTiN under surface finish when drilling. The problem of drilling holes with diameter D=10 mm resides in the fact that 30 to 40% of these holes do not comply with prescribed requested requirements. Th…
Tandem organic light emitting diodes (OLEDs) are ideal for lighting applications due to their low working current density at high brightness. In this work, we have studied an efficient electron transporting layer of KBH(4) doped 9,10-bis(3-(pyridin-3-yl)phenyl)anthracene (DPyPA) which is located adjacent to charge gen…
The phase diagrams and compositions of coexisting phases have been determined for three aqueous two-phase systems (ATPS's) containing poly(propylene glycol) (PPG) with an average molecular weight of 725 and sodium citrate, potassium phosphate, or magnesium sulfate at 25 °C and several pH values. The effect of pH on th…
Supported noble bimetallic nanomaterials have attracted great interest owing to their applications in catalysis. Herein, polystyrene-supported Ag@AgAu bimetallic nanocomposites were synthesized by using a seed-growth route. The size and degree of coverage of the Ag@AgAu NPs could be controlled by changing the experime…