Materials Literature
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High Frequency potential of graphene field-effect transistors (FETs) is explored by quasi-static self-consistent ballistic and dissipative quantum transport simulations. The unity power gain frequency fMAX and the cut-off frequency fT are modeled at the ballistic limit and in the presence of inelastic phonon scatterin…
The basic mechanisms of leakage current components of thin lead zirconate titanate (PZT) ferroelectric films grown by the sol-gel method have been studied. Characteristic regions of current-voltage characteristics with different charge transport mechanisms have been determined. It has been shown that there is an inter…
We have studied the spectroscopic and lasing characteristics of active media based on two synthesized boron fluoride complexes of alkyl-substituted dipyrrolylmethenes and the photostability of the complexes in comparison with complexes of this kind that were previously studied in the literature under identical excitat…
Yanyan Ren1,2,*, Haijun Zhang1,2,*, Baoan Chen1, Jian Cheng1, Xiaohui Cai1, Ran Liu1, Guohua Xia1, Weiwei Wu1, Shuai Wang1, Jiahua Ding1, Chong Gao1, Jun Wang1, Wen Bao1, Lei Wang1, Liang Tian1, Huihui Song1, Xuemei Wang1,2 1Department of Hematology and Oncology, Key Medical Discipline, Jiangsu Province, Zhongda Hospi…
Conjugated polyelectrolytes (CPEs) have attracted much attention as an emerging sensory material because of their meritorious signal amplification, convenient optical detection, readily tunable properties, and easy fabrication. This review paper summarizes the advances in synthesis of conjugated polyelectrolytes (such…
Carbon coils could be synthesized using C2H2/H2 as source gases and SF6 as an incorporated additive gas under thermal chemical vapor deposition system. Nickel catalyst layer deposition and then hydrogen plasma pretreatment were performed prior to the carbon coils deposition reaction. According to the different reactio…
The limiting step in macromolecular crystallography is the preparation protein crystals suitable for X-ray diffraction studies. A strong prerequisite for the success of crystallization experiments is the ability to produce monodisperse and properly folded protein samples. Since the production of most protein is usuall…
Cathodically protected mild steel in seawater is influenced by calcareous films—usually precipitation of calcium and magnesium compounds from seawater, the so-called calcareous film. Under certain circumstances, underprotection can occur, for example, where current demand values are underestimated or where structures…
Abstract The oxidative polycondensation reaction conditions of 2‐(2‐hydroxybenzylideneamino)‐6‐phenyl‐4,5,6,7‐tetrahydrobenzo[b]thiophene‐3‐carbonitrile were examined. The magnitude of the reflectance of the polymer decreases sharply with increasing of wavelength up to 524 nm, then reflectance of the polymer increases…
The chlorido iron(III) complex of octaethyl-2,2′-bidipyrrin has been transformed to a series of pseudohalide complexes by ligand exchange reactions with azide, cyanate, thiocyanate and selenocyanate anions. All new complexes show the expected N-coordination of the axial ligand to the iron(III) center. In the solid sta…
An electromagnetic wave propagating in an in-plane magnetized ferrite plate along the direction of the external uniform magnetic field is described on the basis of the Maxwell equations. The investigation of the physical properties of this wave (usually referred to as a backward magnetostatic wave) shows that the dist…
We have studied a simple eective model of charge ordered insulators. The tight binding Hamiltonian consists of the eective on-site interaction U and the intersite densitydensity interaction Wij (both: nearest-neighbor and next-nearest-neighbor). In the analysis of the phase diagrams and thermodynamic properties of thi…
Oblique-angle deposition of indium tin oxide (ITO) is used to fabricate optical thin-film coatings with a porous, columnar nanostructure. Indium tin oxide is a material that is widely used in industrial applications because it is both optically transparent and electrically conductive. The ITO coatings are fabricated,…
We present a comparative study on the enhancement of photoluminescence and Raman processes by a single metal nanoparticle. Taking an analytical approach, we show the physics behind strikingly different orders of magnitude in enhancement that have been observed, provide fundamental explanation for not observing quenchi…
Pressure-temperature-induced transformations of ferrocene at 8 GPa and different temperatures up to 1000°C have been studied by XRD, SEM and TEM techniques. It was shown that the thermal destruction of ferrocene at 480–600°C is attended with the formation of quasi-spherical nanosized (10–30 nm) particles containing th…
Abstract A type of anisole‐modified hyper‐cross‐linked polystyrene (PS) resin, named HJ‐J00, HJ‐J04, HJ‐J08, HJ‐J10, and HJ‐J12, was synthesized, characterized, and evaluated for adsorption of vanillin from aqueous solution in this study. These resins were prepared from macroporous chloromethylated PS by adding differ…
Potassium fertilization recommendations for alfalfa ( Medicago sativa L.) vary depending on the area of production, soil levels, and crop management. The objectives of this study were to determine the impact of K fertilization on irrigated alfalfa yield, yield components, and soil exchangeable K (K e ) values in a Med…
A new methodology to parallelize the production of micromechanical test samples from bulk materials is reported. This methodology has been developed to produce samples with typical gage dimensions on the order of 20-200 μm, and also to minimize the reliance on conventional focused ion beam fabrication methods. The fab…
We studied exciton–carrier interactions in hole-doped single-walled carbon nanotubes (SWNTs) through the absorption spectral changes. Broadening and blue-shifting of the exciton absorption peak in hole-doped SWNTs are observed with increasing the concentration of the p-type chemical dopant. The absorption broadening i…
On-line (HPLC-NMR) and off-line (HPLC, NMR and MS) methodologies were used to profile the constituents present in the crude extract of Lasiopetalum macrophyllum. On-flow and stop-flow HPLC-NMR supported the presence of trans-tiliroside and permitted partial identification of cis-tiliroside and 4'-methoxy-trans-tiliros…