(C) 2010 American Institute of Physics. [doi:10.1063/1.3512986]“
“Naturally colored cotton, in accordance with currently increasing interest in ecological textile products and methods, has increased
in popularity. Commerce is another of the primary reasons along with interest in environmentally friendly and niche-concept approaches. However, the color palette is limited; no bleaching or dyeing process is used. Instead, only a pretreatment to make the fibers hydrophilic is necessary. This can be induced with several different methods. In this respect, atmospheric-plasma treatments have emerged as an alternative. In this study, knitted and naturally colored cotton fabrics were treated with argon and air atmospheric plasma. The hydrophilicity, wickability, surface friction coefficient, air permeability, check details water vapor permeability, thermal conductivity, thermal resistance, and fastness were investigated. The surfaces of untreated and plasma-treated fabrics Sapitinib were analyzed with Fourier transform infrared/attenuated total reflectance and scanning electron microscopy to detect and compare the chemical and morphological modifications. The results revealed
that atmospheric-plasma treatments are capable of modifying the surface of naturally colored cotton fabrics without any important loss in the color strength or fastness and thermal properties. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 119: 1410-1416, 2011″
“In the
emission cross section (sigma(emi)) calculation of rare-earth ions (RE3+), two parameters, zero-line energy (E-zl) and partition function of lower and upper states (Z(l)/Z(u)), are very difficult to be determined. This induces large discrepancy of sigma emi value, especially for RE3+ with large Stokes shift such as Tm3+. Based on McCumber and Reciprocity theories, we present a transition model and propose a method for Ezl and Z(l)/Z(u) determinations of Tm3+ at 2.0 mu m emission. Several Tm3+ doped glasses are investigated by this method. Influence of Tm3+ concentration and sample’s thickness to Ezl and Z(l)/Z(u) is also discussed. Results indicate that samples with thin thickness are preferred in Ezl determination as well as sigma emi calculation. Comparison of sigma emi values derived from F-L equation and our method demonstrates that accurate sigma JQ-EZ-05 emi value of Tm3+ can be obtained by this method. Since the established transition model is a universal one, then this method is suited to all RE3+ singly doped materials theoretically. (C) 2010 American Institute of Physics. [doi:10.1063/1.3514147]“
“Gorham-Stout syndrome is a very rare bone condition of unknown etiology. It is characterized by the spontaneous onset of bone resorption. Bones that previously appeared normal begin to resorb, partially or completely. Sometimes only a thin shell of cortical bone remains, and there is usually a little replacement by fibrous tissue.