PhotoDSC has been applied to follow the global kinetics of chain scissions resulting from the UV light irradiation or from the thermal degradation of a high molecular weight PEO (4 x 10(6) g x mol(-1)). Infrared spectroscopy, XRD measurements and rheology experiments were performed to evidence the occurrence of chain scissions. Melting energy was used as a tool to quantify the extent of the deg...

As complementary metal-oxide-semiconductor field-effect transistors (MOSFETs) scale, strained Si and SiGe technology have received more attention as a means of enhancing performance via improved carrier mobility. One of the biggest challenges for strained Si and SiGe technology is Si-Ge interdiffusion during thermal processing. Two different aspects of Si-Ge interdiffusion are explored in this ...

Anaerobic digestion (AD) of microalgae is primarily inhibited by the chemical composition of their cell walls containing biopolymers able to resist bacterial degradation. Adoption of pre-treatments such as thermal, thermal hydrolysis, ultrasound and enzymatic hydrolysis have the potential to remove these inhibitory compounds and enhance biogas yields by degrading the cell wall, and releasing th...

Degradation of technical mixture of nonylphenol by the pulsed corona discharge in water has been investigated. It was shown that non-thermal plasma generated by the discharge can effectively remove nonylphenol from water. Degradation of nonylphenol followed first order kinetics. The removal efficiency was dependent on the solution conductivity, while a higher degree of degradation was obtained ...

the plaque forming unit (pfu) and tissue culture infectious dose50 (tcid 50 ) methods are used for evaluation of vaccine heat stability and effect of various stabilizers on thermal stability of vaccines. the aim of present study is using real-time pcrtechniquefor estimation of vaccine degradation rate and thermal stability of measles vaccines. lyophilized measles vaccines containing three vario...

With the growing power consumption in modern high performance VLSI designs, nonuniform temperature distribution and limited heat-conduction capability have caused thermal induced performance and reliability degradation. Electromigration is the main reliability concern and will become a more limiting factor of IC designs. It must be addressed together with a thermal reliability modeling. This is...

Thermal barrier coating (TBC) systems are susceptible to delamination failures in the presence of a large thermal gradient. These failures, which occur within the TBC layer, are very different in character from those associated with the thermally grown oxide. Three possible causes of internal delamination are analyzed. In all cases, the thermomechanical properties of the TBC are allowed to vary...

In high power solid-state-laser systems, one of the major problems is the thermal effect, which occurs in optically pumped laser materials. Heating of the laser medium causes thermal distortions, leading to degradation of beam quality. The main thermal effects in laser rods are thermally induced birefringence and thermal lensing effects. High efficiency, high power and good output beam quality ...

Thermooxidative degradation of poly(vinyl chloride) (PVC) is inevitable during processing of PVC. Recycling of this polymer requires reprocessing in most of the cases, and due to the low thermal stability of PVC, it is of paramount importance to reveal the effect of thermooxidation on the thermal stability of this commercially important polymer. However, detailed systematic investigations are l...

In this research, ZnO nanoparticles (NPs) were synthesized using a binary Zn(II) Schiff-base complex. The complex heat-treated to prepare ZnO nanoparticles via thermal decomposition route at a temperature of 500 °C. The formation of single-phase ZnO nanoparticles and their microstructures were studied by XRD pattern, SEM and TEM observation. The photo-degradation characteristic of the as-prepar...