alpha-MoO3 nanoparticles: solution combustion synthesis, photocatalytic and electrochemical properties

Nanoparticles of ultra-porous MoO3 were synthesized in a single step by a solution combustion reaction using molybdenum metal powder as precursor for the first time. The effects of the preparation conditions, such as the temperature and precursor concentration, on the crystalline phase and morphology of the products were studied systematically. The analytical techniques SEM, TEM, PXRD, TGA, FTIR, and SAED were used to characterize the morphology, composition, and structure of the as-prepared products. The TEM images of MoO3 show the sizes of the particles to be in the range of 2-10 nm. Electrochemical characterization of MoO3 was carried out in 0.5 M H2SO4. The specific capacitance and electrochromic properties of MoO3 were studied. The high photocatalytic activity of MoO3 was investigated using methylene blue azo dye at various concentrations. MoO3 showed the ability to degrade 100% of methylene blue present at high concentrations of about 75 mg L-1

Response of cardamom (Elettaria cardamomum Maton) to NPK under uniform shade

Experiments conducted during 1987-94 at Mudigere (Karnataka, India) to study the response of different levels of N, P and K on the yield of cardamom (Elettaria cardamomum) under uniform shade indicated that increasing N up to 100 kg/ha resulted in a significant increase in capsule yield. Application of P at 50 kg/ha had a positive effect on yield; further increase of P up to 100 kg did not give significant results. In the case of K, significant increase in yield was observed up to 100 kg/ha. The effect of NPK levels on yield component factors such as suckers and panicles varied from year to year. &nbsp

Effect of growth regulators and spacing on multiplication of planting ullits in cardamom (Elettaria cardamomum Maton)

Experiments on multiplication of planting units in cardamom (Elettaria cardamomum) under uniform shade revealed that growth regulators (Etherel 250 ppm and Cycocel 2000 ppm) did not influence proliferation of planting units whereas closer spacing (0.9 m x 0.3 m) resulted in significantly higher number of planting units. &nbsp

Effect of growth regulators and spacing on multiplication of planting ullits in cardamom (Elettaria cardamomum Maton)

Experiments on multiplication of planting units in cardamom (Elettaria cardamomum) under uniform shade revealed that growth regulators (Etherel 250 ppm and Cycocel 2000 ppm) did not influence proliferation of planting units whereas closer spacing (0.9 m x 0.3 m) resulted in significantly higher number of planting units. &nbsp

Response of cardamom (Elettaria cardamomum Maton) to NPK under uniform shade

Experiments conducted during 1987-94 at Mudigere (Karnataka, India) to study the response of different levels of N, P and K on the yield of cardamom (Elettaria cardamomum) under uniform shade indicated that increasing N up to 100 kg/ha resulted in a significant increase in capsule yield. Application of P at 50 kg/ha had a positive effect on yield; further increase of P up to 100 kg did not give significant results. In the case of K, significant increase in yield was observed up to 100 kg/ha. The effect of NPK levels on yield component factors such as suckers and panicles varied from year to year. &nbsp

Juvenile Nasopharyngeal Angiofibroma - A Case Report

15 year old male who presented with a 6 month history of nasal obstruction and recurrent nasal bleeding. He had had about ten episodes of epistaxis in the 3 months. Examination revealed that vital signs were essentially within normal limits.The nasal cavity revealed fresh blood in the right nasal cavity but the bleeding site could not be visualized. An impression of epistaxis secondary rhinosinusitis was made