Resourcesat-1 satellite offers a unique opportunity of simultaneous observations at three different spatial scales through LISSIV, LISS-III (improved LISS-III) and AWiFS sensors from a common platform. The sensors have enhanced capabilities in terms of spectral, spatial and radiometric resolution as compared to earlier Indian Remote sensing Satellite sensors. This paper summarizes the results o...

This paper presents fast and effective filtering techniques for image enhancement from remote sensing Indian remote sensing satellite P6 Liss IV remotely sensed data like Near-Infrared band. There are four filtering techniques used for image enhancement based on spatial domain filters and frequency domain filters such as median filter, wiener filter, bilateral filter and Gaussian homomorphic fi...

Remote sensing offers an efficient and reliable means of collecting the information required, in order to map crop type and acreage. Besides providing a synoptic view, remote sensing can provide structure information about the health of the vegetation. The spectral reflectance of a field will vary with respect to changes in the phenology (growth), stage type, and crop health, and thus can be me...

Abstract Nearly 30 years after the first detailed studies of low-ionization structures (LISs) in planetary nebulae (PNe), we perform a statistical analysis their physical, chemical and excitation properties, by collecting published data literature. The was made through contrast between LISs high-ionization - rims or shells for large sample PNe, order to highlight significant differences these s...

Animals have the ability to alter development, physiology, growth, and behavior in response to different environmental conditions. These responses represent critical assessments of both external and internal factors. For example, the timing of metamorphosis, hatching, or birth depends on the trade-offs between growth opportunity and mortality risk in the developmental habitat. Physiological sen...

Boden and Ozonoff's undercount estimates in their recent Commentary rely on three assumptions for which no quantitative literature references are provided. Alternatively, we show that findings in both studies and published data indicate lower upper-bound estimates for the undercount range. Am. J. Ind. Med. 53:854-855, 2010. (c) 2010 Wiley-Liss, Inc.