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Rajender Kumar

Publications (11)

Investigating Wear Behaviour of Multiple Layer Copper Coating on 3D-Printed Biodegradable PLA Composite

Rajender Kumar, Sonu Kumar, Puneet Aggarwal, Promila & Shambhu Singh · Advances in Research · 2026

This study investigated the wear behaviour of multilayer copper coatings applied to fused deposition modelling-based three-dimensional printed polylactic acid (PLA) specimens. Cylindrical PLA samples with a diameter of 12 mm and a length of 32 mm were fabricated using a 0.4 mm no...

Open access Research Article 10.9734/air/2026/v27i41680

Development, Performance Evaluation and Economic Analysis of a Hand-Operated Maize Sheller

Rinku Grover, Rajender Kumar, Vinod Kumar, Vijay K. Singh & Ravi Gupta · Advances in Research · 2026

Traditional maize shelling is labour-intensive, time-consuming, and often unsuitable for timely post-harvest processing by small and marginal farmers, whereas power-operated shellers may be unaffordable or dependent on unreliable energy supplies. This study developed and evaluate...

Open access Research Article 10.9734/air/2026/v27i41686

Socio-Economic Contribution of Donkey and Mule Rearing in Haryana (India) – A Review

Ajmer Singh, Rajender Kumar, Sanjay Kumar & Yash Pal · Asian Journal of Agricultural Extension, Economics & Sociology · 2021

Animal husbandry plays a vital role in growth of agrarian economy in Haryana and role of livestock is very important for livelihood in the state (Haryana). Equine (Equidae) is a major component of livestock having its four sub groups i.e. horse, pony, donkey and mule. Equine is i...

Open access Research Article 10.9734/ajaees/2021/v39i930657

Working Equids: Their Conditions, Invisible Earning and Challenges- A Review

Ajmer Singh, Yash Pal, Rajender Kumar, Sanjay Kumar, Kanika Rani & Jitender Prasad · Asian Journal of Agricultural Extension, Economics & Sociology · 2021

Working equids play vital role in pastoral economy nationally as well as globally and their role is very significant in providing livelihood to households of their owners through direct and indirect financial contribution. This review aims to analyze their conditions, constrains...

Open access Research Article 10.9734/ajaees/2021/v39i1130761

Correlation between Pulp Weight and Physio-Biochemical Traits of Mango (Mangifera indica L.) Germplasms

Jitendra Singh Shivran, A. K. Singh, D.C. Dimri & Rajender Kumar · Journal of Advances in Biology & Biotechnology · 2024

Aim: The present study was conducted to evaluate the relationship between pulp weight and various physio-biochemical attributes among 30 diverse mango (Mangifera indica L.) germplasms under the Tarai region of Uttarakhand. Place and Duration of Study: This investigation was carri...

Open access Research Article 10.9734/jabb/2024/v27i101511

Causes and Constraints in Equine Rearing in Haryana, India

Ajmer Singh, Yash Pal, Jitender Prashad, Rajender Kumar & Sanjay Kumar · Journal of Scientific Research and Reports · 2022

Present study was aimed to identify causes and constraints in equine rearing in Haryana, India. The study was descriptive in nature and survey based. Structured interview schedule was adopted for data collection and data analysis was done by adopting Statistical Package for Socia...

Open access Research Article 10.9734/jsrr/2022/v28i111700

Socio-Economic Impacts of COVID-19 Pandemic on Equine Rearing in Haryana, India

Ajmer Singh, Yash Pal, Jitender Prashad, Rajender Kumar, Sanjay Kumar, J. Ana Raj & Prabhat Kumar · Asian Journal of Agricultural Extension, Economics & Sociology · 2022

The current study was aimed to analyze socio-economic impact of COVID-19 pandemic on equine rearing in Haryana, India. The study was descriptive and exploratory in nature, including field survey. Structured interview schedule was adopted to conduct personal interviews of responde...

Open access Research Article 10.9734/ajaees/2022/v40i111693

A Study of Socio-economic Aspects of Equine Farmers in Haryana, India

Ajmer Singh, Yash Pal, Jitender Prashad, Rajender Kumar, Sanjay Kumar & Prabhat Kumar · Asian Journal of Agricultural Extension, Economics & Sociology · 2022

The research was aimed to study socio-economic aspects of equine farmers in Haryana, India. The study was conducted in four districts (provinces) of Haryana; Hisar, Bhiwani, Jind and Rohtak. The study was descriptive and exploratory in nature and data were collected during Januar...

Open access Research Article 10.9734/ajaees/2022/v40i1031191

India’s Wool Sector in Transition: Analysing Production Decline and Trade Shifts (2002–2023)

Shubham, Shilpa, Rohit Bishist, Sukhdeep Kaur, Rajender Kumar & Nandni Vashisht · Journal of Scientific Research and Reports · 2025

India’s wool sector, though modest in scale within the broader livestock economy, remains vital for rural livelihoods and the textile industry. This study uniquely integrates long-term production trends with detailed Harmonized System (HS) code trade analysis from 2002 to 2023—a...

Open access Research Article 10.9734/jsrr/2025/v31i83385

Cross Sectional Study of Current Status of Equine Husbandry in Haryana, India

Ajmer Singh, Yash Pal, Kanika Rani, Asmita, Sanjay Kumar, Rajender Kumar & T.K. Bhatacharya · Journal of Scientific Research and Reports · 2025

Equines played pivotal role in past in terms of agriculture, war, peace, transportation etc but, nowadays governmental welfare activities are ignored so, their population is declining day by day. Government should pay much attention to this precious equine family in all aspects....

Open access Research Article 10.9734/jsrr/2025/v31i22827

Efficacy of Microwave Heating Parameters on Physical Properties of Extracted Oil from Turmeric (Curcuma longa L.)

Sachin ., Vijay Kumar Singh, M. K. Garg, Amarjit Kalra, Sushant Bhardwaj, Parveen ., Rajender Kumar, Yadvika ., Sunil Kumar, Nitin Kumar, Arun Kumar Attkan, Anil Panghal & Deepak Kumar · Current Journal of Applied Science and Technology · 2020

In the study, essential oil extraction from turmeric was carried out using modified microwave distillation system and rotary evaporator unit. In present study, effect of input parameters i.e. microwave power (200, 250, 300, 350 and 400 W) and extraction time (10, 15, 20, 25 and 3...

Open access Research Article 10.9734/cjast/2020/v39i2530892