Materials Literature
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A floristic study based on epilithic samples collected from Bolivian cloud forest streams yielded a total of 172 taxa, 41 of which were new or could not be determined based on available literature. Five new taxa at the species and form levels (Gomphonema andinum, G. pumilum var. elegans f. biseriatum, G. pumilum var.…
Abstract The author had a detailed discussion about the new interface model and the concepts proposed by the author concerning the carbon black reinforcement of rubbers, with additional experiments and calculations, and came to the final conclusion. Fundamentally, the changeable and deformable characters of the SH lay…
We report a reversible, large magnetocaloric effect in the vicinity of a low-temperature magnetic transition in Co and Co core Ag shell nanoparticles synthesized using a wet chemical method. The as-synthesized assembly of the particles shows a sharp low-temperature peak in the zero-field-cooled (ZFC) magnetization wel…
The lattice Grüneisen constant is calculated for amorphous polymers and glasses by using the data on Poisson’s ratio. While the thermodynamic Grüneisen constant of vitreous polymers characterizes the anharmonicity averaged over intrachain and other vibration modes, the lattice Grüneisen constant describes the anharmon…
The formation of a NH 2 radical on TiO 2 under photoirradiation was confirmed by electron paramagnetic resonance spectroscopy. Photogenerated holes and electrons on TiO 2 are trapped by adsorbed NH 3 and Ti 4+ species, respectively, to form the NH 2 radical and Ti 3+ species. The half-life of the NH 2 radical determin…
In this work, fiber distribution through the cross-sections of compact yarns and their packing density values was investigated to provide a better understanding of the internal structures of compact yarns produced by different compact spinning systems, since there is no information available so far regarding their int…
Abstract The moisture transmission behaviour of a clothing assembly plays a very important role in influencing its efficiency with respect to thermophysiological body comfort. This paper is in two parts. Part I deals with the processes involved in moisture transmission and the factors at play. Part II is concerned wit…
Generally the strength of stainless austenitic steels does not live up to their good corrosion resistance. Solid solution hardening by interstitial elements is a means of raising the strength, but is used only moderately because of poor weldability, which, however, is not required in various applications. The solubili…
We performed an extensive characterization of an electrospinning process to evaluate how the process parameters and precursor solution characteristics affect the fibers morphology. The work was conducted using precursor solutions with different concentrations of polyacrylonitrile (PAN) diluted in a fixed amount of N,N…
( K 0.5 Na 0.5 ) 1 − 3 x Bi x NbO 3 (KNBN) ceramics were prepared by conventional solid-state sintering without cold-isostatic pressing. The phase structure, microstructure, and electrical properties of KNBN ceramics are studied. The phase structure of KNBN ceramics (x=0.01) is pure perovskite phase with orthorhombic…
Weight loss and thermometric methods have been used to study the corrosion inhibition of mild steel in acidic solution (HCl and H 2 SO 4 ) by Schiff's bases viz. N-(4-N,N-dimethylaminobenzal)-p-anisidine (SB 1 ), N-(4-N,N-dimethylaminobenzal)-p-toluidine (SB 2 ) and N-(4-N,N-dimethylaminobenzal)-2,4-dinitroaniline (SB…
Graphenes bonding forces in graphite are widely known as an example of the van der Waals forces. Well-known experimental facts relative to graphite negate this. A comparison of physical properties of graphite and molecular crystals and metals is shown. A model of dominant weak metallic bonding forces between graphenes…
Magnetic materials in which the fundamental building block is molecular have attracted a great deal of interest because they capitalize on the flexibility inherent in carbon chemistry. Some compounds incorporating chemically stable free radicals are purely organic and show long-range magnetic order at very low tempera…
We apply three-dimensional dislocation dynamics simulations to study the dynamic response of materials at high strain rates (10 4 to 10 6 s −1 ) with the focus on investigating the role of cross-slip in deformation. By comparing simulations with and without cross-slip, we find that cross-slip plays a role in the gener…
Multifunctional carboxylic acids, such as 1,2,3,4-butanetetracarboxylic acid (BTCA), have been used as durable press finishing agents to produce wrinkle-resistant cotton. In our previous research, we used BTCA as a nonformaldehyde bonding agent in the flame retardant finishing system based on a hydroxy-functional orga…
All stand alone photovoltaic systems require an energy buffer to bridge the mismatch between available and required energy. Battery technology, chiefly the lead acid battery, is the most popular form of energy storage utilized. Nevertheless in a photovoltaic application, the storage battery generally has the highest l…
As many of the structural genomics centers have ended their first phase of operation, it is a good point to evaluate the scientific impact of this endeavour. The Structural Genomics Consortium (SGC), operating from three centers across the Atlantic, investigates human proteins involved in disease processes and protein…
This article describes a new measurement technique that utilizes impedance spectroscopy for the characterization of thermoelectric materials and devices. Two circuit models were developed and used to help explain the impedance spectroscopy data using transmission line theory and a coupled electrothermal model. Two tes…
We report room temperature ferromagnetism (RTFM) in the hydrogenated bulk samples of Zn0.98Mn0.02O synthesized via standard solid state reaction route. The effect of hydrogenation time (tH) on the structural and magnetic properties of the samples has been explored. Magnetic measurements show that the samples synthesiz…
4,7-Disubstituted benzothiadiazoles containing 1-arylethynyl and 4-methoxyphenyl groups are selective photoluminescent "light up" probes to duplex DNA with unprecedented sensibility in both spectrophotometric and spectrofluorimetric measurements.