7 results for “B. Durga Prasad”

Research ArticleOpen accessIn the author namesQuickest Multi-Commodity Flow Over Time with Partial Lane ReversalsTanka Nath Dhamala, Shiva Prakash Gupta, Durga Prasad Khanal, Urmila PyakurelRouting of more than one different commodity from speciﬁc origin nodes to the corresponding destination nodes through the arcs of an underlying network respecting the capacity constraints is one of the main problems in operational research. Among them, the quickest multi-commodity ﬂow problem concerns with minimization of time taken to complete this process. The general multi-commodity and quickest multi-commodity ﬂow … …Journal of Mathematics and Statistics, Vol. 16, Issue 1 · 2 Oct 2020 · 7,311 accessesView PDF Cite

Research ArticleOpen accessIn the author namesA HYBRID CRYPTOSYSTEM USING VARIABLE LENGTH SUB KEY GROUPS AND BYTE SUBSTITUTIONAdi Narayana Reddy Kaipa, Vishnu Vardhan Bulusu, Ramakrishna Reddy Koduru, Durga Prasad KavatiHill cipher is developed using simple linear transformation. It is vulnerable to known-plaintext attack and there exist several methods in the direction of linear transformation to overcome the problems. HCM-EE is an improved method using Eigen value but it is linear and too many mathematical operations. In this study an attempt has been made to introduce nonlinearity to the linear … …Journal of Computer Science, Vol. 10, Issue 2 · 13 Nov 2013 · 6,879 accessesView PDF Cite

Research ArticleOpen accessIn the author namesAn Investigation of Compressed Natural Gas Engine for Nitrogen Oxides ReductionP. M. Diaz, B. Durga PrasadProblem statement: This study describes the use of Reformer Gas (RG) to alter NOx emission in a CNG-fueled HCCI engine. Comparison with diesel, natural gas has a very high octane number (≈120) and high auto-ignition temperature (≈600°C). Composed mostly of methane, natural gas is the only common fuel to manifest relatively pure, single-stage combustion. Other fuels have stronger low-temperature reaction … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 15 May 2012 · 7,299 accessesView PDF Cite

Research ArticleOpen accessIn the author namesExperimental and Skeletal Kinetic Model Study of Compressed Natural Gas Fueled Homogeneous Charge Compression Ignition EngineP. M. Diaz, B. Durga Prasad, D.S. Manoj Abraham, K. PalaniKumarProblem statement: In homogeneous charge compression ignition engines fuel oxidation chemistry determines the auto-ignition timing, heat release, reaction intermediates and the ultimate products of combustion. To shorten development time and to understand combustion processes, the use of simulation is increasing. Approach: A model that correctly simulates fuel oxidation at these conditions would be a useful design tool. Detailed models of … …American Journal of Applied Sciences, Vol. 9, Issue 6 · 22 Mar 2012 · 7,258 accessesView PDF Cite