Mechanical Engineering, Industrial and Manufacturing Engineering, Computer Graphics and Computer-Aided Design, Waste Management and Disposal
22
Scopus Publications
Scopus Publications
A COMPARATIVE STUDY ON THE CORRELATION BETWEEN HAND GRIP STRENGTH, FATIGUE TIME, ELECTROMYOGRAPHY AND BODY MASS INDEX IN A GROUP OF COLLEGE STUDENTS AND A GROUP OF LABORERS Anjana Dwivedi, Richa Pandey, Rohan Verma, Mrinal Kant Tiwary, Archie Elizabeth Toppo Biomedical Engineering Applications Basis and Communications, 2026 Hand grip strength (HGS) is a reliable indicator of upper body strength and muscular capacity. This is a comparative study of the various anthropometric variables between college-going students and manual laborers. This study attempts to establish the interrelationship between Hand Grip Strength, Electromyogram, Body Mass Index, age, and fatigue time and lifestyle by examining a group of young college students and a group of young and middle-aged manual laborers. Twenty-five laborers in the age group of 20–60 and 26 college-going students in the age group of 20–30 were randomly selected from BIT Mesra, Ranchi, Jharkhand, India, to assess and compare their HGS and endurance in terms of fatigue time. The HGS and EMG were recorded using the BIOPAC MP45 2-channel data acquisition system along with an SS25LB hand dynamometer (0–50[Formula: see text]kg), in EMG-02 Mode of BIOPAC Student Lab Software. BMI shows weak correlation with HGS in students, but the interconnection between higher HGS and dominant arm, as well as male sex, was re-established in this study. No relationship could be established between EMG and HGS. The relationship between HGS and age is strong, with maximum HGS observed in laborers who were in their late 30s and early 40s. While the effect of lifestyle differences didn’t reflect in the case of HGS (clench force), as both groups had practically the same HGS, however, in the case of hand grip endurance (fatigue time), the laborers pulled ahead of the students by a significant margin.
Evaluation of wind energy-based electricity potential at 40m height in 3 districts of Bihar Rahul Singh, Bhusan Singh Goutam, Sunny Chandra, Shiv Kumar Ray, Richa Pandey Transactions on Energy Systems and Engineering Applications, 2024 In this study, three northern districts of Bihar, namely, Bettiah, Madhubani, and Muzaffarpur, were carefully chosen to understand the wind energy resource availability for energy conversion. The wind speed data set was gathered from local meteorological station for a period of 12 years from April 2008 to March 2020. For evaluating wind resources, the widely used two-parameter Weibull distribution was combined with other statistical techniques. The obtained results exhibited that the wind speed in the three districts of Bihar fluctuated from 3.2 m/s to 4.7 m/s while the scale and shape parameters (also known as the Weibull parameters) are discovered to be in the ranges of 10.247 to 11.432 and 3.5718 to 4.0477, respectively. Further, wind power density was 22.729, 26.288, and 28.021 W/m$^2$ at 40 m above the ground for the three districts considered in the study. These findings suggested that the places of the study are not suitable for widespread wind power extraction at a hub height of 40 m but suitable for small-scale wind turbine setup.
Single vs dual source surface energy balance model based actual evapotranspiration estimation Richa Pandey, Ravinder Kaur, Ivo Zution GONCALVES, Christopher Neale, Manoj Khanna, et al. Environment Conservation Journal, 2024 The current study aims to inter-compare the performance efficiency of the single and the dual source surface energy balance modeling approaches, namely EEFlux and SETMI, respectively for real time catchment scale - crop water demand estimations. For this, the afore-stated two surface energy balance modelling approaches were applied on the Narmada Canal Project, Sanchore, Rajasthan, India for estimating catchment scale actual evapotranspiration (ETa) values for the Rabi cropping seasons of the years 2013-14 and 2018-19, after incorporating the basic satellite data derived inputs viz. Land use, Land surface temperature and Gridded weather data. Due to the non-availability of the catchment scale ground based daily reference evapotranspiration (ETo) values for the study area, the Global Land Data Assimilation System based gridded meteorological data product was utilized, as a substitute for obtaining observed actual evapotranspiration (ETa) values for the investigated Rabi seasons of the study area. These actual evapotranspiration values were compared with those estimated through the single source, EEFlux and the dual source, SETMI modelling approaches to ascertain their comparative performance efficiency through the use of the five statistical indices viz. Mean Absolute Error, Root Mean Square Error, Mean Bias Error, Nash-Sutcliffe Efficiency and the Index of Agreement. The investigations revealed almost at par performance of the two modelling approaches. However, it was concluded that in contrast to the more detailed dual source approach i.e., SETMI, the simple single source approach i.e., EEFlux seemed to be more promising due to its user-friendly implementation and input data automation.
Sources of ions in the river ecosystem Ashish Kumar, Vinod Kumar Tripathi, Pradeep Sachan, Amitava Rakshit, R.M. Singh, et al. Ecological Significance of River Ecosystems Challenges and Management Strategies, 2022
