World's Best Scientists 2026 revealed!

D-Index & Metrics

Mathematics

D-Index
40
Citations
14681
World Ranking
1980
National Ranking
74

Engineering and Technology

D-Index
46
Citations
16207
World Ranking
5029
National Ranking
204

Overview

N. U. Ahmed is affiliated with the University of Ottawa in Canada. Their research primarily focuses on the field of Medicine, with particular attention to infectious diseases, epidemiology, surgery, cardiology and cardiovascular medicine, and oncology.

The scientist has contributed to various topics which include:

  • COVID-19 epidemiological studies
  • Stability and Controllability of Differential Equations
  • Transportation Planning and Optimization
  • Liver Disease Diagnosis and Treatment
  • Viral gastroenteritis research and epidemiology
  • Congenital Anomalies and Fetal Surgery
  • Viral Infections and Immunology Research

Among recent publications, N. U. Ahmed has authored and co-authored the following papers:

  • "Risk factors for bovine rotavirus infection and genotyping of bovine rotavirus in diarrheic calves in Bangladesh" (2022) published in PLoS ONE
  • "Measure-Driven Nonlinear Dynamic Systems with Applications to Optimal Impulsive Controls" (2020) published in the Journal of Optimization Theory and Applications
  • "Mathematical modeling and optimal intervention of COVID-19 outbreak" (2021) published in Quantitative Biology
  • "Ball tipped guide wire for broken nail removal: a case report" (2021) published in SICOT-J
  • "Nivolumab plus relatlimab for patients with relapsed or progressed B-cell malignancies in RELATIVITY-022" (2025) published in Blood Advances

The frequent publication venues that have featured their work include:

  • Journal of Interventional Epidemiology and Public Health
  • Community Based Medical Journal
  • PLoS ONE
  • Journal of Optimization Theory and Applications
  • SICOT-J

N. U. Ahmed has collaborated with several co-authors on multiple occasions. Frequent collaborators include:

  • Yetunde Abioye
  • Saroj Biswas
  • Elsie Ilori
  • Chinwe Lucia Ochu
  • Gloria Ogochukwu Nwiyi

Best Publications

  • Discrete Cosine Transform

    N. Ahmed;T. Natarajan;K.R. Rao

  • Orthogonal transforms for digital signal processing

    K. Rao;N. Ahmed

  • Digital signal analysis

    S. D. Stearns;N. Ahmed

  • Optimal control of distributed parameter systems

    N. U. Ahmed;K. L. Teo

  • Semigroup theory with applications to systems and control

    N. U. Ahmed

  • Electrocardiographic Data Compression Via Orthogonal Transforms

    Nasir Ahmed;Paul J. Milne;Stanley G. Harris

  • Seismic event detection and source location using single-station (three-component) data

    N. Magotra;N. Ahmed;E. Chael

  • Outage minimization with limited feedback for the fading relay channel

    N. Ahmed;M.A. Khojastepour;A. Sabharwal;B. Aazhang

  • Elements of finite-dimensional systems and control theory

    N. U. Ahmed

  • Dynamic Systems and Control with Applications

    Nasir Uddin Ahmed

  • An adaptive IIR structure for sinusoidal enhancement, frequency estimation, and detection

    D. Hush;N. Ahmed;R. David;S. Stearns

  • On using the LMS algorithm for time delay estimation

    D. Youn;N. Ahmed;G. Carter

  • Outage minimization and optimal power control for the fading relay channel

    N. Ahmed;M.A. Khojastepour;B. Aazhang

  • Optimization and Identification of Systems Governed by Evolution Equations on Banach Space

    N. U. Ahmed

  • Mathematical analysis of dynamic models of suspension bridges

    N. U. Ahmed;H. Harbi

  • Discrete Time Signals and Systems

    Nasir Ahmed;T. Natarajan

  • Optimum Laguerre networks for a class of discrete-time systems

    M.A. Masnadi-Shirazi;N. Ahmed

  • Existence of Optimal Controls for a General Class of Impulsive Systems on Banach Spaces

    N. U. Ahmed

  • BIFORE or Hadamard transform

    N. Ahmed;K. Rao;A. Abdussattar

  • On the simulation of a class of time delay estimation algorithms

    K. Scarbrough;N. Ahmed;G. Carter

  • Fast Fourier Transform

    Nasir Ahmed;Kamisetty Ramamohan Rao

Frequent Co-Authors

K. R. Rao
K. R. Rao The University of Texas at Arlington
Kok Lay Teo
Kok Lay Teo Sunway University
Behnaam Aazhang
Behnaam Aazhang Rice University
Ashutosh Sabharwal
Ashutosh Sabharwal Rice University
Michael E. Fisher
Michael E. Fisher University of Maryland, College Park
Richard G. Baraniuk
Richard G. Baraniuk Rice University
Hussein T. Mouftah
Hussein T. Mouftah University of Ottawa
Eko N. Onggosanusi
Eko N. Onggosanusi Samsung (United States)
Anand G. Dabak
Anand G. Dabak Texas Instruments (United States)
Shantayanan Devarajan
Shantayanan Devarajan Georgetown University

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