Materials Literature
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The composition and temperature dependences of the soft-mode and ferroelectric phase transition in BaxSr1?xTiO3 (BST) are presented and analyzed within the framework of a refined treatment of a quasi-harmonic model (QHM) for quantum particles. The QHM involves generalized simple microscopic quantum particles with anha…
Liquid behaviors, including droplet condensation and frost melt water retention, of fins during frosting and defrosting processes on three aluminum fins with different surface characteristics under winter operating conditions of an air source heat pump were investigated. The effects of the surface characteristics, inc…
Capacity regulation system by controlling suction valve is useful for large scale reciprocating compressor in petrochemical engineering field. The dynamic performance of adjustment device influences the stability and accurancy of this system. In this paper, a mathematical model of adjustment device coupled with the mo…
Magnetic properties as well as the specific heat of the spin-dimer system ${\mathrm{La}}_{2}{\mathrm{Ru}}_{1\ensuremath{-}y}{\mathrm{Mn}}_{y}{\mathrm{O}}_{5}$ were investigated for manganese concentrations $0\ensuremath{\le}y\ensuremath{\le}0.25$. The magnetic (dc) susceptibility of the unsubstituted ($y=0$) system sh…
A Comment on the Letter by A. J. Comley et al., Phys. Rev. Lett. 110, 115501 (2013). The authors of the Letter offer a Reply.
Many medicinal plants are used by the Maya of Guatemala to treat all aspects of women's reproductive health. As part of an international collaboration, the eight medicinal plants were collected and extracted including Plantago major L . , Wigandia urens (Ruiz & Pavón) Kunth., Hamelia patens Jacq., Smilax domingensis W…
CuxAg1−xInS2 solid thin films were fabricated through a low-cost process. Particular process-related enhanced properties lead to reaching a minimum of lattice mismatch between absorber and buffer layers within particular solar cell devices. First, copper-less samples X-ray diffraction analysis depicts the presence of…
A cellulose acylate, cellulose-CPAC, was prepared homogeneously in the ionic liquid 1-butyl-3-methyl chloride imidazole ([Bmim]Cl) from cotton dissolving pulp. The pulp was first solubilized in the solvent system [Bmim]Cl/N,N-dimethyl formamide (DMF), and then reacted with 2-chloro-2-phenylacetyl chloride (CPAC) in th…
Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.
X-ray photoelectron spectroscopy (XPS) and reflection absorption infrared spectroscopy (RAIRS) have been used to study the structure of molecularly adsorbed ammonia on the ZrB 2 (0001) surface and its subsequent dissociation. Spectra were obtained as a function of ammonia exposure to the surface at 95 K and as a funct…
Pulsed laser ablation of Ni targets in liquid CO2near the critical point (C.P.) (Pcrit= 7.38 MPa, Tcrit= 304.1 K) was performed and the time evolution of the plasma and the ensuing cavitation bubble analyzed by shadowgraph imaging. Formation of double-layered anomalous cavitation bubbles was observed inside the liquid…
Knowing the basic properties of nanofibers (such as morphology, molecular structure and mechanical properties) is crucial for the scientific understanding of nanofibers and for the effective design and use of nanofibrous materials. In order to evaluate and develop the manufacturing process, the composition, structure…
We have studied the Raman spectrum and photoemission of hybrid magneto-fullerene devices. For C60 layers on cobalt, the spin polarized electron transfer shifts the photoemission energy, reducing the zero phonon contribution. The total luminescence of hybrid devices can be controlled via spin injection from magnetic el…
A key objective in electrospinning is generating fibers of nanoscale diameter consistently and reproducibly. Considerable effort has been devoted to understanding how the parameters affect the spinnability and more specifically the diameter of the fibers resulting from the electrospinning process. Many processing para…
The standard method for determining the contact resistance of planar metal-semiconductor interfaces can underestimate the true contact resistance under normal operating conditions, as it relies on the resistivity of the semiconductor material remaining constant during measurement. However, the strong temperature depen…
Development of new methods and compounds to eradicate insect vectors are desperately needed. To that end, our team has previously described the synthesis and characterization of a conjugate comprised of a silver nanoparticle core encapsulated by the pyrethroid pesticide, deltamethrin (pesticide encapsulated silver nan…
The influence of nanoclay on the morphology and properties of the polypropylene (PP)/ethylene–octene block copolymer (EOC) blend with double compatibilizers of maleated PP (PP-g-MA) and maleated EOC (EOC-g-MA) was investigated and compared with the nanocomposites containing either PP-g-MA or EOC-g-MA as a compatibiliz…
The surface states of a topological insulator in a fine-tuned magnetic field are ideal candidates for realizing a topological metal which is protected against disorder. Its signatures are (i) a conductance plateau in long wires in a finely tuned longitudinal magnetic field and (ii) a conductivity which always increase…
Tissue integrity in the face of external physical forces requires the production of a strong extracellular matrix (ECM) composed primarily of the protein collagen. Tendons and the heart both withstand large and changing physical forces, and emerging evidence suggests that the transcription factor scleraxis plays a cen…
Lubricants are important components of almost all air conditioning and refrigeration systems. Their primary function is to lubricate the compressor, provide sealing of clearances between low and high pressure sides of the compressor and remove frictional heat. But the lubricant is in contact with refrigerant at all ti…