Materials Literature
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Antiferromagnetic transition in thermally evaporated Mn-V alloys has been studied using resistivity-temperature measurements from 300 to 1.4 K. Resistivity-temperature behaviour typical of bulk a -Mn rich specimen is obtained with 0.05 at % V in Mn. The Néel point is shifted to 86 \\pm 1 K from the value of 90 \\pm 1…
This work is concerned with the molecular influence of structure on the phase behavior of mixtures. Systems of hyperbranched (dendric) polymers in solution are studied experimentally. The results are compared to systems where the polymeric substance has a linear architecture in order to assess the effect of molecular…
Oxy-Fuel Fireside Research goals are: (1) Determine the effect of oxy-fuel combustion on fireside corrosion - (a) Flue gas recycle choice, Staged combustion ramifications, (c) JCOAL Collaboration; and (2) Develop methods to use chromia solubility in ash as an 'ash corrosivity' measurement - (a) Synthetic ashes at firs…
A simple and straightforward route to novel bifunctional solid catalysts that combine both acid and base functions is described in the Communication by N. R. Shiju, G. Rothenberg, et al. on page 9615 ff. The synthesis allows easy tailoring of the acid/base properties by controlling the number and surface concentration…
The Savannah River National Laboratory is collaborating with Alfred University to evaluate the potential for additives in borosilicate glass to improve sulfur retention. This preliminary report provides further background on the incorporation of sulfur in glass and outlines the experiments that are being performed by…
Using the methods of scanning electron (SEM) and atom force microscopy (AFM) as well as photoluminescence (PL) and Raman micro-spectroscopy, we investigated $Zn_{1-x}Co_xO$ films ($x=5$ and $15\%$) grown by molecular beam epitaxy on sapphire substrates. It is found that the films have a nanocrystalline structure with…
We report tunable single-mode lasing with an improved slope efficiency from a cholesteric liquid crystal (ChLC) cavity with a three-layered structure. The device consists of one photopolymerized ChLC layer with a wide reflection band, another ChLC layer with a notch reflection band and a Rhodamine-6G-doped ionic liqui…
Theoretical analysis of the effect of thermoelectric phenomena on the relation of effective electrical and thermal conductivity in the macroscopically inhomogeneous media is carried out. Plane-layered structures, two-dimensional self-dual and three-dimensional randomly inhomogeneous media are examined. It is shown tha…
Motivated by the recent experiment of Velasco Jr. {\em et al.} [J. Velasco Jr. {\em et al.}, Nat. Nanotechnology 7, {\bf 156} (2012)], we develop a mean-field theory of the interaction-induced antiferromagnetic (AF) state in bilayer graphene at charge neutrality point at arbitrary perpendicular magnetic field B. We de…
We describe an apparatus designed for obtaining precise measurements of the growth rates of ice crystals from water vapor over a range of experimental conditions. Our aim is to produce clean, high-quality test crystals in a well controlled environment for investigating the detailed molecular dynamics that controls the…
A key feature of semiconductor manufacturing over the past 30 years has been its ability to produce very small chips, the current state-of-the-art in production being around 0.25 mm in size. Conventional assembly is based on the handling of individual components by pick-and-place robots. This technology is unsuitable…
A multitude of processes cooperate to produce the sensation of sound. The key initial step, the transformation from mechanical motion into an electrical signal, takes place in highly specialized mechanosensitive organelles that are called hair bundles due to their characteristic appearance. Each hair bundle comprises…
In this paper we demonstrate laser emission from emulsion-based polymer dispersed liquid crystals. Such lasers can be easily formed on single substrates with no alignment layers. Remarkably, it is shown that there can exist two radically different laser emission profiles, namely, photonic band-edge lasing and non-reso…
In this work, the mechanical behavior of sintered waste material of ethylene-propylene-diene-monomer crumb rubber (EPDMCR) is analyzed, optimizing the temperature and compression pressure. The results obtained showed that an increase in temperature and compression pressure gives a significant improvement in the mechan…
The effect of extending the conjugation length, the deployment of various substituents and configurational locking of the polyene backbone on the second-order nonlinear optical (NLO) response of a series of indoline based compounds has been investigated. The compounds were examined using Hyper-Rayleigh scattering (HRS…
Nanotechnology is an interdisciplinary research effort bridging many scientific fields from physics and chemistry to engineering, biology, and medicine. The result of such interconnections is holding great potential for the early detection, diagnosis, and personalized treatment of disease. The nanoscale range at which…
Dispersion and resonance properties of double nanorod structure, ring structure, H structure and chair type structure is demonstrated. With some structural modification, the properties of the structure changes from isotropic to uni-axial anisotropic and further to chiral left-handed material. The Demonstration of near…
Die Faltungsdynamik individueller Proteinstrukturelemente wird mit einer Methode untersucht, die mehrere Sonden und Frequenzen nutzt. In ihrer Zuschrift auf S. 11076 ff. erzielen M. R. Bunagan, F. Gai et al. mit ihrem Verfahren eine deutlich verbesserte Strukturauflösung bei der kinetischen Untersuchung der Faltungsdy…
This paper demonstrates formation of surface relief (SR) gratings and crossed SR gratings with molecularly oriented structure using photo-cross-linkable liquid crystalline copolymer films by means of holographic exposure of 325 nm He- Cd laser beams combined with linearly polarized (LP) UV light. For the intensity hol…
We report on length statistics measured for bubbles in the equilibrium bamboo state, achieved by the coarsening of aqueous foam in long cylindrical tubes, such that the soap films are all flat and perpendicular to the axis of the tube. The average bubble length is found to be 0.88 times the tube diameter, independent…