X6Al2HT500 hydrotalcites, where X represents Mg, Fe, Cu or Zn were synthetized and investigated before and after gold deposition for toluene and CO total oxidation reactions. The samples have been characterized by specific areas, XRD measurements and Temperature Programmed Reduction. Concerning the toluene total oxidation, the best activity was obtained with Au/Cu6Al2HT500 catalyst with T50 at ...

The static recrystallization characteristics and microstructure evolution in hot-deformed austenite were evaluated for a newly developed low-carbon CrNiMnB ultrahigh-strength steel with without molybdenum addition. time 50% (t50%) over wide range of strains hot-deformation temperatures obtained using the stress-relaxation technique on Gleeble thermomechanical simulator. Moreover, effect deforma...

Piezocone penetration tests with dissipation phases are particularly useful for geotechnical site characterization. They also provide three independent readings with depth from a single sounding as well as time-rate information. In past investigations, only silty sands with specific silt content have been tested and complete sets of tests have not been conducted to evaluate the influence of dif...

Purpose: The aim of the present study was to develop orodispersible tablets of diethylcarbamazine citrate (an anthelmintic) for improving patient compliance, especially, those of paediatric and geriatric categories with difficulties in swallowing, with the prime objective of arriving at cost effective product by effervescent method. Methods: In the effervescent method mixture of sodium bicarbon...

In the present study, novel co-processed superdisintegrants were developed by solvent evaporation method using crospovidone and croscarmellose sodium in the different ratios (1:1, 1:2 & 1:3) for use in the fast dissolving tablet formulations. The developed excipients were evaluated for angle of repose, Carr’s index and Hausner’s ratio in comparison with physical mixture of superdisintegrants. T...

We have previously shown that 1-hr exposures to 0.5 microns sulfuric acid (H2SO4) mist at 100 and 1000 micrograms/m3 produced transient alterations of bronchial mucociliary clearance of monodispersed 7.6 and 4.2 microns mass median aerodynamic diameter gamma-tagged ferric oxide (Fe2O3) in healthy nonsmoking humans in a dose-dependent manner. To determine the role, if any, of the length of expos...

The photocatalytic activity of phosphonated Re complexes, [Re(2,2'-bipyridine-4,4'-bisphosphonic acid) (CO)3(L)] (ReP; L = 3-picoline or bromide) immobilised on TiO2 nanoparticles is reported. The heterogenised Re catalyst on the semiconductor, ReP-TiO2 hybrid, displays an improvement in CO2 reduction photocatalysis. A high turnover number (TON) of 48 molCO molRe(-1) is observed in DMF with the...

In the present work, fast disintegrating tablets of prochlorperazine maleate were prepared with a view to enhance patient compliance by direct compression method. Three superdisintegrants i.e., crospovidone, croscarmellose sodium and sodium starch glycolate in different ratios with MCC (Avicel, PH-102) along with directly compressible mannitol (Pearlitol SD 200) to enhance mouth feel. The prepa...

Abstract: This study evaluates the effects of hydration and dehydration cycles (HD cycles) on seed germination four Caatinga tree species (Anadenanthera colubrina var. cebil, Enterolobium contortisiliquum, Pityrocarpa moniliformis Pterogyne nitens) subjected to different temperatures determine thermal upper lower limits germination. For this, seeds were 0, 1, 2 3 HD set germinate at 5, 10, 15, ...