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5 articles for “high altitude”
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Photosynthesis at high altitude: A case study in Trans Himalayan region
Abstract: Photosynthesis is the basis of life on earth that converts light energy into chemical energy and is the primary component of crop yield. Significant increase in crop yield by enhancing photosynthesis can answer to global food security. With the increase in population size and limited land availability, efforts have been made to grow crops in tough terrains like high altitude areas. As one ascends a mountain, environmental conditions such as …
Published in International Journal of Plant Biotechnology · Vol. 2, Issue 2, 2016 · pp. 25–34 Read article
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Pollutant Emissions, Performance and Combustion Characteristics in Diesel Engines at High Altitudes: A Review
Abstract: At high altitudes, majority of the engines tend to have less power output since the increase in altitude which directly results in lack of oxygen content present in the atmosphere. This paper presented to come up with a systematic work carried out on the existing research efforts regarding the effects of altitude on engines, the changes or modifications that can be applied for the enrichment of oxygen, the design parameters, …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 11, Issue 1, 2025 · pp. 37–50 Read article
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Flutter study of a solar powered high-altitude long endurance UAV
Abstract: This paper presents an aero-elastic flutter analysis on a high altitude long endurance unmanned air vehicle. Numerical finite element analysis (FEA) based simulations for flutter have been carried using the commercial FEA package ANSYS. Analytical flutter analysis is performed to verify the FEA results. The analytic flutter analysis gives the divergence speed to be 32.7 m/sec. The numerical flutter analysis of the rudder shows the bending and torsional modes for …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 2, 2016 · pp. 01–09 Read article
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Turbocharging of Spark Ignited Wankel engine for High Altitude Application Using 1-D Simulation Approach
Abstract: Wankel engines are increasingly finding their application in unmanned aerial vehicles, especially where high power-to-weight ratio is of utmost importance. This advantage makes the Wankel engines outperform the reciprocating engines despite several shortfalls. 1-D simulation model of the Wankel engine has been constructed from commercially available software for reciprocating piston engines. This model was then used to study the matching of turbocharger for the required application and the effect of …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 1, Issue 1, 2015 · pp. 36–47 Read article
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Bacterial Diversity of Decomposing Leaf Litters of Polyalthia longifolia (Sonner.) Thw. and Rhododendron arboreum Sm. Under Natural Condition
Abstract: The role of microorganisms in the decomposition of plant material is of immense importance. A large amount of plant litter is added annually to the soil through leaf fall and death of plants. As the plant materials fall on the ground, they are immediately attacked by various groups of soil microorganisms and soon after, the process of decomposition is initiated. Microorganisms being heterotrophic in their mode of nutrition are responsible …
Published in International Journal of Plant Biotechnology · Vol. 1, Issue 1-2, 2015 · pp. 34–41 Read article