User profiles for Ramalingam Shanmugam

Ramalingam Shanmugam

Honorary Professor, School of Health Administration, Texas State University
Verified email at txstate.edu
Cited by 1032

[HTML][HTML] Exploring health outcomes for US veterans compared to non-veterans from 2003 to 2019

…, PS Granados, GJ Pacheco, J Reagan, R Shanmugam… - Healthcare, 2021 - mdpi.com
The physical demands on US service members have increased significantly over the past
several decades as the number of military operations requiring overseas deployment have …

An energy‐efficient clustering and cross‐layer‐based opportunistic routing protocol (CORP) for wireless sensor network

R Shanmugam, B Kaliaperumal - International Journal of …, 2021 - Wiley Online Library
Energy‐efficient data collection is a significant research challenge in wireless sensor networks
(WSNs). One of the essential approaches to improve WSN performance is clustering, …

[HTML][HTML] Obesity and morbidity risk in the US veteran

…, P Stigler Granados, GJ Pacheco, R Shanmugam… - Healthcare, 2020 - mdpi.com
The obesity epidemic in the United States has been well documented and serves as the basis
for a number of health interventions across the nation. However, those who have served in …

[BOOK][B] Statistics for scientists and engineers

R Shanmugam, R Chattamvelli - 2015 - ndl.ethernet.edu.et
This is an intermediate-level textbook on probability and mathematical statistics. This book
can be used for one-semester graduate courses in engineering statistics. Prerequisites …

[HTML][HTML] A hybrid cross layer with harris-hawk-optimization-based efficient routing for wireless sensor networks

X Xue, R Shanmugam, SK Palanisamy, OI Khalaf… - Symmetry, 2023 - mdpi.com
Efficient clustering and routing is a main challenge in a wireless sensor network (WSN). To
achieve better quality-of-service (QoS) performance, this work introduces k-medoids with …

[HTML][HTML] Energy-efficient clustering and routing using ASFO and a cross-layer-based expedient routing protocol for wireless sensor networks

…, F Hajjej, AK Munusamy, R Shanmugam - Sensors, 2023 - mdpi.com
Today’s critical goals in sensor network research are extending the lifetime of wireless sensor
networks (WSNs) and lowering power consumption. A WSN necessitates the use of energy…

An intervened Poisson distribution and its medical application

R Shanmugam - Biometrics, 1985 - JSTOR
Among probability distributions that are used to describe a chance mechanism whose
observational apparatus becomes active only when at least one event occurs is the zero-truncated …

[HTML][HTML] Hybrid K-medoids with energy-efficient sunflower optimization algorithm for wireless sensor networks

…, V Cherappa, T Thangarajan, R Shanmugam… - Sustainability, 2023 - mdpi.com
Wireless sensor network (WSN) sensor nodes should have adequate energy. Reduced
energy usage is essential to maximize the endurance of WSNs. Combining WSN with a more …

At a crossroad of data envelopment and principal component analyses

R Shanmugam, C Johnson - Omega, 2007 - Elsevier
Data envelopment analysis (DEA), a popular linear programming technique is useful to rate
comparatively operational efficiency of decision making units (DMU) based on their …

[HTML][HTML] Association of electronic health record vendors with hospital financial and quality performance: retrospective data analysis

B Beauvais, CS Kruse, L Fulton, R Shanmugam… - Journal of medical …, 2021 - jmir.org
Background Electronic health records (EHRs) are a central feature of care delivery in acute
care hospitals; however, the financial and quality outcomes associated with system …