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Majumder, S.
- Frequency Distribution of Abo Blood Group and Rh Factor among the Local Domiciles of East Midnapore District, West Bengal
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Authors
Affiliations
1 Dept of Physiology, Haldia Institute of Dental Sciences and Research, Banbishnupur, Balughata, Haldia, WB-721645, IN
2 Dept. of Physiology, Berhampur Girls' College, Berhumpur, Murshidabad, West Bengal, IN
1 Dept of Physiology, Haldia Institute of Dental Sciences and Research, Banbishnupur, Balughata, Haldia, WB-721645, IN
2 Dept. of Physiology, Berhampur Girls' College, Berhumpur, Murshidabad, West Bengal, IN
Source
Indian Journal of Public Health Research & Development, Vol 5, No 3 (2014), Pagination: 273-275Abstract
Since the discovery of ABO blood group system by Landsteiner a voluminous data is available on the frequencies of ABO blood group and also Rh factor for most parts of the world but such type of data among the localites of East Midnapur is still lacking. The present study is undertaken to find out the normal ABO and Rh frequencies among the localites of East Midnapore.
A total of 2256 domicile individuals from East Midnapore district are selected from the BDS students, staffs of the Dental colleges and local domicile population reported to the pathological laboratory of our associated hospital (Dr. B. C. Roy Hospital) for blood group determination. Blood sample were collected under aseptic condition by venepuncture from the antecubital vein. The ABO blood group and Rh factor are determined immediately after blood collection using the Tile or Slide testing. It is found that the most common type of blood group is B type followed by O , A and then AB. The prevalence of Rh positive population in East Midnapore is considerably higher than the Rh negative individuals like other parts of India.
Keywords
Prevalence of Blood Group, Mismatching of Blood
- Parabolic Bundles in Positive Characteristic
Abstract Views :198 |
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Authors
Manish Kumar
1,
S. Majumder
1
Affiliations
1 Statistics and Mathematics Unit, Indian Statistical Institute, Bangalore 560 059, IN
1 Statistics and Mathematics Unit, Indian Statistical Institute, Bangalore 560 059, IN
Source
Journal of the Ramanujan Mathematical Society, Vol 33, No 1 (2018), Pagination: 1-36Abstract
Algebraic parabolic bundles on smooth projective curves over algebraically closed field of positive characteristic is defined. It is shown that the category of algebraic parabolic bundles is equivalent to the category of orbifold bundles defined in [KP]. Tensor, dual, pullback and pushforward operations are also defined for parabolic bundles.References
- [Bi] I. Biswas, Parabolic bundles as orbifold bundles, Duke Math. Jour., 88 (1997) 305–325.
- [Ha] David Harbater, Patching and Galois theory, Galois groups and fundamental groups, Math. Sci. Res. Inst. Publ., Cambridge Univ. Press, Cambridge, 41 (2003) 313–424.
- [KP] Manish Kumar and A. J. Parameswaran, Formal Orbifolds and Orbifold Bundles in Positive Characteristic, arXiv:1512.03235v1 [math.AG].
- [MS] V. B. Mehta and C. S. Seshadri, Moduli of vector bundles on curves with parabolic structures, Math. Ann., 248 (1980) 205–239.
- [No] Madhav Nori, The fundamental group scheme, Proc. Ind. Acad. Sci. (Math Sci.) 91 (1982) no. 2, 73–122.
- [Serre] J. P. Serre, Local Fields, Translated from the French by Marvin Jay Greenberg, Graduate Texts in Mathematics, Vol. 67, Springer-Verlag, New York-Berlin (1979).
- Turbulent Fluid Flow and Heat Transfer through a Horizontal Rectangular Diffuser with the Use of Single and Double Baffles
Abstract Views :120 |
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Authors
Affiliations
1 Department of Computer Science and Engineering, Jadavpur University, Kolkata-700 032, IN
2 Department of Mechanical Engineering, Heritage Institute of Technology, Kolkata-700107, IN
3 Deputy Director of Industrial Training, West Bengal, In-Charge of Govt. ITI Howrah Homes Technical Education, Training and Skill Development Department, Govt. of West Bengal, IN
4 Department of Mechanical Engineering, Jadavpur University, Kolkata-700032, IN
1 Department of Computer Science and Engineering, Jadavpur University, Kolkata-700 032, IN
2 Department of Mechanical Engineering, Heritage Institute of Technology, Kolkata-700107, IN
3 Deputy Director of Industrial Training, West Bengal, In-Charge of Govt. ITI Howrah Homes Technical Education, Training and Skill Development Department, Govt. of West Bengal, IN
4 Department of Mechanical Engineering, Jadavpur University, Kolkata-700032, IN
Source
Journal of the Association of Engineers, India, Vol 91, No 1-4 (2021), Pagination: 15-24Abstract
Scientists and engineers give much attention for convective fluid flow around the baffles because of its wide application in different types of heat exchangers used in industries. Analysis of the velocity profiles of the turbulent flow and convection flow parameters have been studied for a horizontal rectangular asymmetric diffuser, the bottom wall of which is being heated. Single and double baffles of equal height are used in the experiments. The experimental study has been carried out at Reynolds numbers of 3.594x104 3.986x104 and 5.371x104 with base plate temperatures of 323K and 343K respectively. Skin friction coefficient along the walls has been calculated. The variation of local Nusselt number along the upper wall is observed carefully. The effort is made to establish some new empirical relationships between Coefficient of skin friction and Nusselt number with Reynolds number The size of recirculation bubble is also calculated.Keywords
Turbulence, Baffles, Rectangular Diffuser, Skin Friction Coefficient, Reynolds Number.References
- Asif, M. R., Hossain, M. S. and Hossain, K. A., Heat Transfer in a Rectangular enclosure with Baffles, ARPN Journal of Engineering and Applied Sciences, Vol.6, No.4, pp.29-41, 2011.
- Razak, A. A., Yaakob, Y. and Ramli, M. N., Computational Simulation of Turbulence Heat Transfer in Multiple Rectangular Ducts, World Academy of Science, Engineering and Technology, Vol. 53, pp.242-246, 2009.
- Mehdi, Q. S. and Mushatet, K. S., Simulation of Turbulent Flow and Heat Transfer Through a Duct with Baffle Plates, Journal of Engineering and Development, Vol. 12, No.3, pp.142-157, 2008.
- Dogan, M. and Sivrioglu, M., Experimental investigation of mixed convection heat transfer from longitudinal fins in a horizontal rectangular channel. International Journal of Heat and Mass Transfer, Vol. 53, pp.2149-2158, 2010.
- El-Askary, W. A. and Abdel-Fattah, A., Experimental and Numerical Studies on Heat Transfer and Fluid Flow in a Duct Fitted with Inclined Baffles, Computer Modeling in Engineering and Sciences, Vol. 83, No.4, pp.425-457, 2012.
- Majumder, S., Roy, D., Bhattacharjee, S. and Debnath, R., Experimental Investigation of the Turbulent Fluid Flow Through a Rectangular Diffuser Using Two Equal Baffles, Journal of Institution of Engineers (India) Ser. C, Vol. 95, No.1, pp. 19-23, 2014.
- Bhattacharjee, S., Debnath, R., Mandal, A, Roy, D. and Majumder, S., Experimental Investigation Of Recirculatory Turbulent Flow Past Twin Obstructions Of Different Heights Placed At Different Stations Of A Rectangular Diffuser, Paper No. EM - 05, Proceedings of the 37th National & 4th International Conference on Fluid Mechanics and Fluid Power, December 16-18, IIT Madras, Chennai, India, pp.1-8, 2010.
- Lee, J., Jung, S. Y, Sung, H. J. and Zaki, T. A., Effect of wall heating on turbulent boundary layers with temperature-dependent viscosity. Journal of Fluid Mechanics, Vol. 726, pp. 196-225, 2013.
- Bhattacharjee, S., Mandal, A., Debnath, R., Majumder, S. and Roy, D., Effect of Bottom Wall Heating on the Turbulent Fluid Flow in an Asymmetric Rectangular Diffuser: an Experimental Study, Journal of Applied Fluid Mechanics, Vol. 9, No.6, pp. 2969-2979, 2016.