Materials Literature
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Acoustic cavitation has an important role in ultrasound applications, such as HIFU (High Intensity Focused Ultrasound) therapy. Control of the growth of the cavitation bubbles is one of the important factors to control the effects of the cavitating bubbles. Several researchers have shown that a dual-frequency excitati…
Nineteen species belonging to ten genera of blue-green and grass green algae were collected from four freshwater habitats within the campus of Bahauddin Zakariya University during November 2008 and taxonomically investigated. This is the first study of the algal flora from the area of Multan. As a result of this inves…
International audience
Neste artigo e feita uma revisao sistematica da interacao das radiacoes ionizantes com a materia, ressaltando sua dependencia com o tipo de radiacao, composicao do meio e energia da radiacao.
The polymer-derived SiC fiber is one of the most important reinforcing materials for high performance ceramic matrix composites(CMC).Three generations of SiC fibers have been developed over the past thirty years.In this article,the preparing methods,compositions,microstructures and performances of three-generation fib…
The relationship between distribution of antioxidant and degradation of polymer is investigated on EPDM compounded with IPPD that is a typical amine type antioxidant for vulcanized rubber. IPPD in EPDM homogeneously-dispersed by kneading is used. Because of decomposition by heat while molding and volatilization from s…
The standard and non-destructive tests were performed on totally 144 cubes and 24 beam specimens produced from different concrete mixtures. The results of the non-destructive tests carried out on beams were correlated with cube compressive strength values. The effects of aggregate’s type and its maximum size on the re…
In this study, the effect of O2-plasma treatment with various powers on the surface characteristics and also the cell response of the Ti-30Nb-1Fe-1Hf alloy were investigated. Surface characteristics of Ti-30Nb-1Fe-1Hf alloy were evaluated by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), a…
Here we report a new synthesis strategy to synthesize thick-walled two dimensional hexagonal mesoporous silicas, using tri-block surfactant fatty alcohol ether carboxylate [AEC: CnH2n+1O(CH2CH2O)mCH2COONa] with two different hydrophilic head groups of (EO)x-block and anionic carboxylate. The unique formation of double…
We demonstrate complete tunneling of light through large- scale mu-negative media, which has negative permeability but positive permittivity, by constructing a quasi-one-dimensional structure with side branches. For the structure with a single side branch, there always exists a transmission peak which can be easily tu…
Copper planarization is of great interest in the microelectronics industry. In this work we monitored surface film formation on a copper wire in situ by tracking the time evolution of the system impedance in aqueous phosphoric acid, a condition relevant to electrochemical mechanical planarization (eCMP). First, potent…
Clothing comfort is a state of satisfaction indicating physiological, psychological and physical balance among the person. Though objective experiments are easy to measure, subjective experiment is rated an end-use performance test to collect the comfort sensation of wears. In this paper, objective and subjective expe…
Well defined isolated [V(IV)O(acac)(2)] surface complexes have been prepared on aluminium trifluoride, alpha-AlF(3), as solid support by equilibrium adsorption from liquid solution. The paramagnetic vanadium(iv) surface complexes were studied by pulsed electron spin resonance spectroscopy in combination with quantum c…
For the last two decades, intensive research has been focused on developing reinforced polymers with incorporation of nanometric fillers. Amongst the different types of nanofillers, those based on layered silicates (commonly known as clays), have been most widely investigated. Dispersing clay sheets on a nanoscopic sc…
The properties of molybdenum-doped ZnO (MZO) films deposited by radio-frequency (rf) magnetron sputtering and organic light-emitting devices (OLEDs) using an MZO film as an anode were investigated. A transparent conducting MZO film with high transparency and relatively low resistivity was prepared by rf magnetron sput…
Cu ion migration mechanism was investigated in damascene Cu/SiO2interconnects. Cu backward migration was investigated by AC TDDB test. When AC is applied, the Cu migration cannot be recovered completely because the direction of diffusion flux and drift flux is opposite. Therefore, lifetime of AC TDDB is slightly large…
Many yarns are made from chemical fibers with various kinds of functional properties, and filament yarn surpasses spun yarn in terms of mechanical properties. However, in this century, “comfort”, “safety”, “user-friendly” and “green” are key concepts. The Food and Agriculture Organization of the United Nations (FAO) o…
Diesel soot and reference carbon black samples have been characterised by analysis of the organic compounds fraction and determination of textural characteristics (specific area). The potential to eliminate such carbonaceous particles has been investigated using a Cu/ZrO2 solid catalyst promoted by potassium additives…
The inhibiting effect of phosphates and polyphosphates on the precipitation rate of calcium sulfate dihydrate (gypsum) in sodium chloride solutions has been studied using constant composition technique in which the super-saturation and ionic strength were maintained constant at 25°C. The presence of phosphoric acid H3…
We report an X-ray study of the order in a ‘side-on’ smectic-A elastomer in which both the polymer backbone and the mesogenic side groups are, on average, parallel to the smectic layer normal. The present system shows in all phases locally correlated structures as evidenced by systematic diffuse scattering at small an…