http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
AN ALGORITHM TO FIND A MAXIMUM MATCHING OF A TRAPEZOID GRAPH
PRABIR K. GHOSH,MADHUMANGAL PAL 한국산업응용수학회 2005 Journal of the Korean Society for Industrial and A Vol.9 No.2-1
The computation of maximum matching is an important task in graph theory. For general graph an O(√n.m) time algorithm is available to solve this problem. In this paper, an efficient algorithm is presented which takes O(n²) time and O(n+m) space for a trapezoid graph, where n and m represent the number of vertices and the number of edges of the graph.
AN EFFICIENT ALGORITHM TO SOLVE CONNECTIVITY PROBLEM ON TRAPEZOID GRAPHS
Ghosh, Prabir K.,Pal, Madhumangal 한국전산응용수학회 2007 Journal of applied mathematics & informatics Vol.24 No.1
The connectivity problem is a fundamental problem in graph theory. The best known algorithm to solve the connectivity problem on general graphs with n vertices and m edges takes $O(K(G)mn^{1.5})$ time, where K(G) is the vertex connectivity of G. In this paper, an efficient algorithm is designed to solve vertex connectivity problem, which takes $O(n^2)$ time and O(n) space for a trapezoid graph.
Prabir Ghosh,Lalit Kumar Thakur,Amar Nath Samanta,Subhabrata Ray 한국화학공학회 2012 Korean Journal of Chemical Engineering Vol.29 No.9
This work investigates oxidative decolorization of two different dyes, Methylene blue and Titan yellow in aqueous solution using an environmentally friendly advanced electro-chemical oxidation (electro-Fenton) process. The effect of operating conditions like H2O2 concentration, current density, initial dye concentration was studied in a batch stirred cell. Individual decolorization decay kinetics for both dyes was investigated. The second-order absolute rate constants (L mol−1 s−1) between hydroxyl radical and dye have been calculated from experimental data by fitting it to the decolorization model. The apparent kinetic constants, kapp (s−1) for Methylene blue and Titan yellow dye decolorization were also determined. The experimental data showed a good fit to the theoretical model, which can predict data in a wide range of % dye decolorization. This process also reduces COD of the dye solution, and the unit energy demand (UED) in kWh/kg COD removed for different electrical current has been reported.
Thermal energy consumption and its conservation for a cement production unit
Yogendra Kumar Verma,Bidyut Mazumdar,Prabir Ghosh 대한환경공학회 2021 Environmental Engineering Research Vol.26 No.3
The manufacturing of cement is an energy-intensive industrial process which requires huge amount of heat to be supplied at a higher value of temperature. In this paper, use of the thermal energy at different sections of clinker manufacturing in cement industry, losses and thermal energy savings have been reviewed and presented. A detailed analysis of pre heater, kiln & clinker cooler was done and possible approaches of heat recovery from major losses have been discussed for technological opportunities to maximize use of waste heat recovery. The amount of CO₂ emission reduction has been presented along with the payback period for energy saving measures. The energy efficiency during clinker formation was 58.67%. Unidentified losses of 5.74% were observed for the system. The energy of 16.34% was conserved by using the waste heat recovery system for electricity generation and 1.15% was conserved by using the pyro jet burner and gunning castable of 250 ㎜ as per our design data for the cement production unit. Overall, 75.17% of heat was utilized during the process and 24.83% was lost through stack and other activities.