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Behera, S. K.
- Acquired Amegakaryocytic Thrombocytopenic Purpura - An Underdiagnosed Entity
Abstract Views :180 |
PDF Views:132
Authors
Affiliations
1 Department of Pathology, MKCG Medical College, Berhampur, Odisha, IN
1 Department of Pathology, MKCG Medical College, Berhampur, Odisha, IN
Source
International Journal of Medical and Dental Sciences, Vol 4, No 2 (2015), Pagination: 897-900Abstract
Acquired Amegakaryocytic Thrombocytopenic Purpura (AATP) is a rare cause of thrombocytopenia presenting over a wide age group with symptoms of bleeding and bone marrow showing isolated absence of megakaryocytes in an otherwise normal marrow. Here, we report a case of AATP in a three year old female child who was then treated with anti thymocyte globulin successfully. We report this case because of it's under diagnosis or misdiagnosis as immune thrombocytopenia (ITP) in most of the cases. We also review the literature regarding the pathogenesis and treatment of this undiagnosed entity.Keywords
Amegakaryocytic Thrombocytopenia, Misdiagnosis, Anti Thymocyte Globulin, Rare, Bone Marrow.Full Text
References
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- Patel S, Shashidhar B, Kruthika N, Nataraju HV, Vedavathi R, Pradeep C. A Rare Case of Thrombocytopenia - Acquired Amegakryocytic Aplasia. IJSS Case Reports & Reviews 2015;1(11):73.
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- Design of Sequentially Fed Balanced Amplifying Antenna for Circular Polarization
Abstract Views :194 |
PDF Views:0
Authors
Affiliations
1 Department of Electronics & Communication Engineering, National Institute of Technology, Rourkela, IN
2 Department of Electronics & Tele-Communication Engineering, Jadavpur University, Kolkata, IN
3 Department of Electronic Science, Berhampur University, Orissa, IN
1 Department of Electronics & Communication Engineering, National Institute of Technology, Rourkela, IN
2 Department of Electronics & Tele-Communication Engineering, Jadavpur University, Kolkata, IN
3 Department of Electronic Science, Berhampur University, Orissa, IN
Source
ICTACT Journal on Communication Technology, Vol 1, No 4 (2010), Pagination: 213-217Abstract
This paper presents a sequentially fed balanced amplifying antenna that exhibits circularly polarized radiation. The inherent benefits of good isolation between input and output ports as well as improved matching capabilities of balanced amplifiers provide overall system gain of 8 dBi at frequency 2.36GHz. The planar arrangement of the patch antenna elements are considered to form an array. The phase of the feeding in the array increases progressively from 00 to 2700.Each element in the array is linearly polarized. Here four elements were considered and 2 arranged at the four corners of a square domain. This arrangement shows that each antenna sees its adjacent ones to be radiating from an edge orthogonal to its edge of radiation. Circular polarization is achieved due to this sequential feeding. This array is designed with operating frequency 2.4 GHz. A good axial ratio of 2.4 is obtained at 2.37 GHz frequency. The noise figure is considerably reduced and which is around -19dB.Keywords
Sequentially Fed, Circular Polarization, Balanced Amplifying Antenna, Array.
- Slump Test:Laboratory and Numerical Simulation-Based Approach for Consistency of Mill Tailings Paste
Abstract Views :251 |
PDF Views:68
Authors
S. K. Behera
1,
Prashant
1,
C. N. Ghosh
1,
D. P. Mishra
2,
P. K. Mandal
1,
Aniket Verma
1,
Sumeet Mohanty
3,
Kanhaiya Mishra
1,
P. K. Singh
1
Affiliations
1 CSIR-Central Institute of Mining and Fuel Research, Dhanbad 826 015, IN
2 Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, IN
3 Birla Institute of Technology and Science, Hyderabad 500 078, IN
1 CSIR-Central Institute of Mining and Fuel Research, Dhanbad 826 015, IN
2 Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, IN
3 Birla Institute of Technology and Science, Hyderabad 500 078, IN
Source
Current Science, Vol 117, No 2 (2019), Pagination: 235-241Abstract
Solid-to-water proportion decides the effectiveness of paste backfill in terms of transportation characteristics during mine backfilling. This article highlights various laboratory tests conducted to determine the optimum solid-to-water ratio. Also, numerical simulation was carried out using computational fluid dynamics technique (ANSYS FLUENT) to understand the slump lifting process and variation in volume of the paste with time. The optimum slump and spread for lead–zinc mill tailings paste were in the range 190– 200 mm and 330–340 mm respectively. The optimum water content in the paste fill for this study was found to be 23 wt%. Results show that the solid percentage is inversely related with slump and spread. Also, an optimum slump lifting speed needs to be maintained for accurate values of slump and spread.Keywords
Computational Fluid Dynamics Modelling, Mill Tailings, Paste Fill, Slump Test.Full Text
References
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- Deb, D., Sreenivas, T., Dey, G. K. and Panchal, S., Paste backfill technology: essential characteristics and assessment of its application for mill rejects of uranium ores. Trans. Indian Inst. Metals, 2017, 70(2), 487–495.
- Ercikdi, B., Cihangir, F., Kesimal, A. and Deveci, H., Practical importance of tailings for cemented paste backfill. In Paste Tailings Management (eds Yilmaz, E. and Fall, M.), Springer, Cham, Switzerland, 2017, pp. 7–32.
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- Jewell, R. J., Fourie, A. B. and Lord, E. R., Paste and Thickened Tailings – A Guide, Australian Centre of Geomechanics, Perth, Australia, 2002.
- Potvin, Y., Thomas, E. H. and Fourie, A. B., Handbook on Mine Fill, ACG Publication, Perth, Australia, 2005.
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- Yılmaz, E., Kesimal, A., Erçıktı, B. and Alp, İ., Determination of the optimum cement content for paste backfill samples. In 18th International Mining Congress and Exhibition of Turkey-IMCET, Antalya, 2003, pp. 119–125.
- Boger, D. V., Rheology and the resource industries. Chem. Eng. Sci., 2009, 64, 4525–4536.
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- Bingham, E. C., Fluidity and Plasticity, McGraw-Hill Book Company, Inc, New York, USA, 1922.
- Robinsky, E. I., Thickened discharge – a new approach to tailings disposal. CIM Bull., 1975, 68, 47–53.
- Robinsky, E. I., Tailings disposal by the thickened discharge method for improved economy and environmental control. In Tailings Disposal Today, Proceedings of the Second International Tailings Symposium, Denver, Colorado, USA, 1978, pp. 75–92.
- BIS, IS 8112: 43 grade ordinary Portland cement – specification, Bureau of Indian Standards, New Delhi, 1989.
- Clayton, S., Grice, T. G. and Boger, D. V., Analysis of the slump test for on-site yield stress measurement of mineral suspensions. Int. J. Miner. Proc., 2003, 70, 3–21.
- Roussel, N. S. and Leroy, R., From mini cone test to Abrams cone test: measurement of cement based materials yield stress using slump tests. Cem. Concr. Res., 2005, 35, 817–822.
- Haiqiang, J., Fall, M. and Cui, L., Yield stress of cemented paste backfill in sub-zero environments: experimental results. Miner. Eng., 2016, 92, 141–150.
- Experimental Studies to Evaluate Spontaneous Heating Liabilities of Coals: A Case Study
Abstract Views :134 |
PDF Views:0
Authors
Affiliations
1 Department of Mining Engineering, National Institute of Technology, Odisha, 769 008, IN
1 Department of Mining Engineering, National Institute of Technology, Odisha, 769 008, IN