Velagapudi Ramakrishna Siddhartha Engineering College

About: Velagapudi Ramakrishna Siddhartha Engineering College is a based out in . It is known for research contribution in the topics: Computer science & Antenna (radio). The organization has 1307 authors who have published 1155 publications receiving 6163 citations.

Image Fusion Technique for Remote Sensing Image Enhancement

Abstract: Remote sensing image enhancement algorithm based on image fusion is presented in this paper, in-order to resolve problems of poor contrast and sharpness in degraded images The proposed method consists of two essentials: the first, the techniques of image sharpening, dynamic histogram equalization and fuzzy enhancement technique were respectively applied to the same degraded image Second, these obtained three images, which individually preserved the enhancement effect of either of these techniques, are fused into a single image via different fusion rules This method enhances the contrast well in the remote sensing image without introducing severe side effects, such as washed out appearance, checkerboard effects etc, or undesirable artifacts The experiment results indicate that the proposed algorithm integrates the merits of dynamic histogram equalization, fuzzy enhancement and sharpening effectively and achieves a considerable efficiency in the enhancement of degraded images exhibiting both blurred details and low contrast The qualitative and quantitative performances of the proposed method are compared with other methods producing better quality enhanced image

Eco Friendly Sisal Fiber/Poly Lactic Acid Composite Material for Thermal Insulation Applications

Abstract: Recently several countries framed policies regarding to replacement of traditional products with environmental friendly products. In India the share of residences electricity consumption rises from 46% in 2015 to 68% in 2040 of total energy consumption. Investigators are interested in the development of biodegradable thermal insulating materials to reduce energy consumption. In the present study eco-composites were prepared using biodegradable sisal fiber and polylactic acid (PLA) for thermal insulation applications to reduce energy consumption with significant ecological advantage. Guarded heat flow method was adopted for the measurement of thermal conductivity of composites as per ASTM E1530. The variation of thermal conductivity of samples with respect to fiber content was studied. From the experimental results, it was observed that the percentage of reduction in thermal conductivity of composite from 0 to 9.75 with the increase of 0 to 30% (weight basis) sisal fiber loading. Among all the samples considered in this work, the lowest thermal conductivity (0.148 W/(m.K)) of composite was found at 30% sisal fiber reinforcement. The increase in thermal conductivity of all samples was marginal with the increase of temperature. The Sisal/PLA composite could be considered as eco-friendly thermal insulation material. This material not only reduces the energy consumption but also reduces greenhouse gas emission.