Materials Literature
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When performed daily, cone beam CT (CBCT) images can accumulate radiation dose to non-negligible levels. Because kV x-rays have a larger relative biological effectiveness (RBE) than its MV x-rays, the accumulated absorbed dose needs to be multiplied by an appropriate RBE to better evaluate the impact of CBCT dose in a…
The role of twinning in synthesizing Y 3 Al 5 O 12 from Al 2 O 3 and Y 2 O 3 powders during milling and compacting is shown by the example of obtaining laser ceramics based on yttrium-aluminum garnet. Simulation of twins in aluminum and yttrium oxides revealed the possibility of forming fragments of the garnet structu…
Features of cesium ion emission from a graphene film on iridium in a 10 7 –10 8 V cm −1 electric field of are studied. Field electron and desorption images demonstrate that the film consists of regions (islands) 20–100 nm in size. Intercalated cesium lies under the film. There is continuous desorption of cesium ions f…
This article introduces a low-energy preparation method of the insulated sandwich panel from rigid Polyurethane foam wastes through three technological processes of foam cutting, mixture of particles and adhesive, and curing and moulding. It is featured by curing at normal temperature, low energy consumption and simpl…
A novel dibromo-substituted HBC derivative, whose side chains contains oxygen heteroatoms, has been successfully synthesized by Diels-Alder reaction of asymmetric synthesis. It possesses bromo-functional groups to provide possibility to further synthesize more complex HBC derivatives. The final compound’s structure ha…
The PBA-containing hydrogels were produced by copolymerizing 3-acrylaminophenylboronic acid with acrylamide. Hydrogels swelling increases steadily with pH and glucose concentration. The boronate specific dye, Alizarin Red S(ARS) was incorporated into hydrogels film. Alizarin Red S displays a dramatic change in fluoresc…
One image-based evaluation method to determine the appearance changes of the wool knitted fabrics is investigated in this paper. Based on the image modeling of fabric surface at different scaling level, some essential features are defined and extracted to characterize the knit fabric appearance by using FFT methods, s…
Lignosulfonate (LS) is an important dispersant for wettable powder (WP). Though domestic products of lignosulfonate in China are very cheap compared to imported products, their performance is often inferior. Two modified products GCL4-1 and GCL4-A, from sodium lignosulfonate and alkali lignin respectively, were develo…
There are many factors influencing the quality of products that are produced from wood machinery. Those influencing factors are the feedrate and moisture content.The results of this research was: (1) Reduction of feedrate of 3 axis CNC milling process with teak wood material, would be resulted the smllest surface roug…
Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.
In this study, the two systems of polymethylmethacrylate (PMMA) based polymer electrolyte films have been prepared by the solution casting technique. Lithium iodide (LiI) and ethylene carbonate (EC) were used as inorganic salt and plasticizer, respectively. The highest room temperature conductivity for the plasticized…
Steel pipes used for oil and gas exploitation undergo the action of cyclic loads that can cause their failure by fatigue. A consistent evaluation of the fatigue behavior should take into account the micromechanisms of fatigue damage initiation, which precede macroscopic cracking and macrocrack propagation. In this wor…
The ongoing problem with therapeutic treatments for AD and many other degenerative diseases is that current treatment strategies not only target conditions that occur late in disease progression, but the treatments themselves lead to side effects that negatively affect the entire organism. In this context, the applica…
Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.
A series of cobalt-molybdenum nitride catalysts were prepared using Co-Mo oxide precursors via temperature-programmed reaction in N2-H2 mixed gases. The catalysts were characterized by N2 physical adsorption, X-ray diffraction, temperature-programmed desorption of H2. Their catalytic performance was evaluated in the m…
Silver nanoparticles have been synthesized in 3-(aminopropyl)triethoxysilane (KH-550) solution using DMF (N, N-dimethylformamide) as both solvent and reductant at room temperature and 120°C. A characteristic surface plasmon band can be observed for the obtained silver nanoparticles from UV-vis absorption spectra, whic…
Considering the interfacial debonding energy at the fiber/matrix interface, an improved Monte Carlo simulation has been done on the matrix failure of the unidirectional ceramic matrix composites. Firstly, the debond length formula was given, then the stress/strain formula was also reviewed, and the matrix failure was…
In this paper, the triplet properties of a series of 1, 8, 15, 22-tetra-n-pentyloxy metallophthalocyanines [α-MPc(OC5H11)4), M=Fe, Ni, Cu, Zn] and metal free phthalocyanine [H2Pc((OC5H11)4)] were investigated using flash photolysis technique in solutions at the concentration of 10-5mol/L. The triplet absorption curves…
For physical structure of TiO2 films is the core of photoelectric conversion on the photovoltaic performance of DSSC, the method by parameter estimate to determine the optimal thickness of DSSC working electrode is deduced, which is consistent with the analysis of real physical meaning about the TiO2 layer thickness a…
Results of PD tests in vegetable oil impregnated insulating system are discussed in this paper. The main objective of the study is to investigate the PD behaviour in the particular insulating systems at elevated temperature. Two different sample arrangements of electrical pressboard and insulating paper were used to s…