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16 results on '"Munikrishna, N."'

2. Prediction of Wake Structure Transition for a Linear Plug Nozzle Using Detached Eddy Simulation (DES)

Author

Manu Mohan, M., Balakrishnan, N., Munikrishna, N., Cavas-Martínez, Francisco, Editorial Board Member, Chaari, Fakher, Series Editor, di Mare, Francesca, Editorial Board Member, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Editorial Board Member, Ivanov, Vitalii, Series Editor, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Sivaramakrishna, Gullapalli, editor, Kishore Kumar, S., editor, and Raghunandan, B. N., editor

Published
2023
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3. Turbulent Flow Computations on a Hybrid Unstructured Point Distribution Using Meshless Solver LSFD-U

Author

Khillare, Amol, Yousuf, Mohamed, Munikrishna, N., Balakrishnan, N., Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, Venkatakrishnan, L., editor, Majumdar, Sekhar, editor, Subramanian, Ganesh, editor, Bhat, G. S., editor, Dasgupta, Ratul, editor, and Arakeri, Jaywant, editor

Published
2021
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10. Hearing outcome in infants following correction of maternal hypothyroidism during pregnancy

Author

Indu Varsha G, K.N.V. Prasad, Prashanth Babu A, Munikrishna N, S. M. Azeem Mohiyuddin, and Apoorva H M

Subjects
endocrine system, Pediatrics, medicine.medical_specialty, endocrine system diseases, Hearing loss, Hearing Loss, Sensorineural, Placenta, 03 medical and health sciences, 0302 clinical medicine, Maternal hypothyroidism, Hearing, Pregnancy, 030225 pediatrics, otorhinolaryngologic diseases, medicine, Congenital Hypothyroidism, Humans, Euthyroid, 030223 otorhinolaryngology, Subclinical infection, business.industry, Hearing deficit, Infant, General Medicine, medicine.disease, Congenital hypothyroidism, Pregnancy Complications, Otorhinolaryngology, Pediatrics, Perinatology and Child Health, Sensorineural hearing loss, Female, medicine.symptom, business, hormones, hormone substitutes, and hormone antagonists
Abstract

Purpose There is significant prevalence of overt and subclinical hypothyroidism in pregnant women in rural areas. Maternal hypothyroidism is known to cause congenital hypothyroidism resulting in sensorineural hearing loss. Anti-Thyroperoxidase antibodies are known to cross placental barrier. There is no literature on hearing assessment in infants born to women whose hypothyroidism was corrected during pregnancy. Do these infants suffer hearing loss? Our study addresses this question. Methods 140 infants born to women on treatment for hypothyroidism during pregnancy and 140 infants born to euthyroid women were evaluated for hearing by Brainstem Evoked Response Audiometrry at 1 and 4 months age. Anti-TPO antibodies were estimated at 4 months of age. Results There was no clinical hearing deficit or delay in neurological development in infants born to women undergoing treatment for hypothyroidism during pregnancy. However wave V latency on BERA was slightly prolonged in them compared to infants born to euthyroid women. There was absence of wave V when maternal subclinical hypothyroidism persisted till parturition. However within 6–8months of age the wave V latencies corrected to normal. Anti-TPO antibodies were within normal range at 4months age. Conclusion Maternal hypothyroidism when corrected before parturition does not affect hearing in the infants clinically. The mild delay in wave V on BERA corrects within first year of life. However larger studies to assess hearing in infants born to women having overt hypothyroidism during first trimester of pregnancy may be desirable to assess whether hearing is adversely affected in them.

Published
2020

11. Cartesian-like grids using a novel grid-stitching algorithm for viscous flow computations

Author

Mondal, Partha, Munikrishna, N., and Balakrishnan, N.

Subjects
Algorithms -- Usage, Algorithms -- Technology application, Viscous flow -- Measurement, Viscous flow -- Models, Algorithm, Technology application, Aerospace and defense industries, Business, Science and technology
Abstract

A novel grid-stitching algorithm has been developed for generating Cartesian-like grids for viscous flow calculations. A grid is generated by recursive division of Cartesian cells. Unlike the conventional Cartesian-mesh calculations that involve unit aspect ratio cells, stretching is used to get the high aspect ratio cells and smooth grid near the body. The grid data are collected in an unstructured format. This novel approach, along with an unstructured mesh-based flow solver (HIFUN-2D, developed in-house), has been successfully used for numerical simulations. This grid is successfully used for Euler and laminar flow computations. Partial success has been achieved for turbulent flow simulations. DOI: 10.2514/1.27854

Published
2007

16. Viscous Flow Computations Using a Meshless Solver, LSFD-U.

Author

Groth, Clinton, Zingg, David W., Ninawe, Anup, Munikrishna, N., and Balakrishnan, N.

Abstract

The Upwind-Least Squares Finite Difference (LSFD-U) scheme has been successfully applied for inviscid flow computations. In the present work, we extend the procedure for computing viscous flows. Different ways of discretizing the viscous fluxes are analysed for the positivity, which determines the robustness of the solution procedure. The scheme which is found to be more positive is employed for viscous flux computation. The numerical results for validating the procedure are presented. [ABSTRACT FROM AUTHOR]

Published
2006
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