Bhaskar J. Choudhury

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The effect of arsenate with or without phosphate on the growth and sugar metabolism in rice seedlings cv. MTU 1010 was studied. Arsenate was found to be more toxic for root growth than shoot growth and water content of the seedlings gradually decreased with increasing concentrations. Arsenate exposure at 20 μM and 100 μM resulted in an increase in reducing(More)
This study demonstrates the potential for applying passive microwave satellite sensor data to infer the discharge dynamics of large river systems using the main stem Amazon as a test case. The methodology combines (1) interpolated ground-based meteorological station data, (2) horizontally and vertically polarized temperature differences (HVPTD) from the(More)
A compact photoluminescence (PL)-based O2 sensor utilizing an organic light emitting device (OLED) as the light source is described. The sensor device is structurally integrated. That is, the sensing element and the light source, both typically thin films that are fabricated on separate glass substrates, are attached back-to-back. The sensing elements are(More)
A joint U.S. Air Force/NASA blended, global snow product that utilizes Earth Observation System (EOS) Moderate Resolution Imaging Spectroradiometer (MODIS), Advanced Microwave Scanning Radiometer for EOS (AMSR-E) and QuikSCAT (Quick Scatterometer) (QSCAT) data has been developed. Existing snow products derived from these sensors have been blended into a(More)
This paper presents findings of the current status of our joint U.S. Air Force – NASA work in developing a blended snow product to map global snow cover extent utilizing Moderate Resolution Imaging Spectrometer (MODIS), Advanced Microwave Scanning Radiometer for NASA's Earth Observing System (AMSR-E) passive microwave data and QuikSCAT scatterometer data.(More)
During a field campaign covering the 2002 corn growing season, a dual polarized tower mounted L-band (1.4 GHz) radiometer (LRAD) provided brightness temperature (T(B)) measurements at preset intervals, incidence and azimuth angles. These radiometer measurements were supported by an extensive characterization of land surface variables including soil(More)
Growth in weight, stature, sitting height, lower extremity length, head circumference and girth of biceps, chest and calf were studied in a cross-sectional sample of Assamese Muslims in Kamrup district, Assam, India. The sample comprised 835 boys and 894 girls, aged 3-20 years. The average growth pattern for the linear body dimensions was analysed by(More)
Hourly L-band (1.4 GHz) horizontally (H) polarized brightness temperatures (Ts's) measured during five episodes (more than two days of continuous measurements) of the 2002 corn growth cycle are analyzed. These Ts measurements were acquired as a part of a combined active/passive microwave field campaign, and were obtained at five incidence and three azimuth(More)
During a field campaign covering the 2002 corn growing season, a dual polarized tower mounted L-band (1.4 GHz) radiometer (LRAD) provided brightness temperature (T B) measurements at preset intervals, incidence and azimuth angles. These radiometer measurements were supported by an extensive characterization of land surface variables including soil moisture,(More)