P.C. Sarkar, Ammayappan Lakshmanan and Niranjan Kumar
The purpose of this study is to enhance the functional properties of Hessian fabric through resin finishing. Hessian bags made of lignocellulosic jute fiber are commonly used to…
Abstract
Purpose
The purpose of this study is to enhance the functional properties of Hessian fabric through resin finishing. Hessian bags made of lignocellulosic jute fiber are commonly used to pack, store and transport agro-commodities, including horticultural crops such as rice, potato, onion and wheat. However, because of high water affinity, these bags undergo degradation in properties due to moisture release by the stored commodities themselves. Exposure to natural elements, e.g. rain and dew, also causes moisture absorption in hessian bags. Once the bag gets moistened, degradation of jute bags starts due to microbial attack, leading to loss in tensile strength and change in extensibility, leading to ultimate breakage in warp and weft directions of the fabric.
Design/methodology/approach
To overcome the degradation in the functional properties of hessian fabric due to exposure to moisture and microbial attack, the application of semi-synthetic polymeric materials was carried out.
Findings
Tenacity, bursting strength, puncture resistance, tear strength and breaking load, as well as life cycle of resin-treated jute fabric was found to be better than control jute.
Originality/value
To the best of the authors’ knowledge, no recent reports of resin finishing on jute (hessian) fabric with semi-synthetic resins are presently available, other than coating with rubber.
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Priya Singh, Vandana Niranjan and Ashwni Kumar
Recent advancements in the domain of smart communication systems and technologies have led to the augmented developments for very large scale integrated circuit designs in…
Abstract
Purpose
Recent advancements in the domain of smart communication systems and technologies have led to the augmented developments for very large scale integrated circuit designs in electro-magnetic applications. Increasing demands for low power, compact area and superior figure of merit–oriented circuit designs are the trends of the recent research studies. Hence, to accomplish such applications intended for optical communications, the transimpedance amplifier (TIA) was designed.
Design/methodology/approach
In this research work, the authors present a multi-layer active feedback structure which mainly composes a transimpedance stage and a gain stage followed by a low pass filter. This structure enables to achieve improved input impedance and superior gain. A simplified cascaded amplifier has also been designed in a hierarchical topology to improvise the noise effect further. The proposed TIA has been designed using Taiwan Semiconductor Manufacturing Company 45 nm complementary metal oxide semiconductor technology. Moreover, the thermal noise has been analyzed at −3 dB bandwidth to prove the reduction in thermal noise with increase in frequency for most of the devices used in the designed circuit.
Findings
The proposed differential TIA circuit was found to obtain the transimpedance gain of 50.1 dBO without applying any external bias current which is almost 8% improvised as compared to the conventional circuit. In addition to this, bandwidth achieved was 2.15 GHz along with only 38 W of power consumption, which is reasonably 100 times improvised in comparison of conventional circuit. Hence, the proposed differential TIA is suitable for the low power optical communications applications intended to work on low supply voltage.
Originality/value
The designed work is done by authors in university lab premises and is not copied from anywhere. To the best of the authors’ knowledge, it is 100% original.
Details
Keywords
- Power consumption
- Bandwidth
- Noise analysis
- Optical communication system
- Thermal noise
- 2C transimpedance amplifier
- −3 dB bandwidth
- Input impedance
- Transimpedance gain
- Cascaded amplifier
- Active feedback
- Optical receivers
- Push pull inverter
- Average noise density
- Corner analysis
- Process voltage temperature analysis
Raushan Kumar, Niranjan Deo Pathak and Shiv Swaroop Jha
Kashmir is widely recognised as a prominent tourist destination within the Himalayan region of India. The Valley is abundant with a diverse range of valuable tourism assets. In…
Abstract
Kashmir is widely recognised as a prominent tourist destination within the Himalayan region of India. The Valley is abundant with a diverse range of valuable tourism assets. In order to ensure the sustainable utilization of these tourism resources, the implementation of an appropriate tourism policy is necessary. The primary objective of this study is to analyse government policies pertaining to the expansion and advancement of tourism in the Kashmir region. Additionally, the study also seeks to evaluate the potential for tourism and the influx of tourists in Kashmir. The Government of India has developed a preliminary tourist policy, as indicated by the research findings. It also focuses on enhancing human resources and tourism infrastructure, ensuring the safety and security of tourists and promoting tourism education within the state. Furthermore, the government is diligently endeavouring to foster the growth of ecotourism and lesser known tourist locations through collaborative efforts with many relevant entities. This study utilises secondary data sources to analyse the economic implications of tourism in the region of Jammu and Kashmir. It aims to investigate several indicators of economic progress, including tourist arrivals, job creation, the state's gross domestic product (GDP), infrastructure development and regional advancement. In addition to the agricultural industry, the tourist sector has emerged as a prominent contributor to the economy, serving as a significant source of income and employment opportunities.
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Anoop Kumar Sahu, Saurav Datta and S.S. Mahapatra
The purpose of this paper is to adapt integrated hierarchical evaluation platform (associated with “green” performance indices) toward evaluation and selection of alternative…
Abstract
Purpose
The purpose of this paper is to adapt integrated hierarchical evaluation platform (associated with “green” performance indices) toward evaluation and selection of alternative suppliers under green supply chain (GSC) philosophy.
Design/methodology/approach
In this context, incompleteness, vagueness, imprecision, as well as inconsistency associated with subjective evaluation information aligned with ill-defined suppliers’ assessment indices has been tackled through logical exploration of fuzzy set theory. A fuzzy-based multi-level multi-criteria decision-making (FMLMCDM) approach as proposed by Chu and Varma (2012), has been case empirically studied in the context of green suppliers selection.
Findings
Result obtained thereof, has been compared to that of fuzzy-TOPSIS to validate application potential of the aforementioned FMLMCDM approach.
Originality/value
The proposed method has been found fruitful from managerial implication viewpoint.
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The case illustrates an entrepreneurial voyage and venture creation and through it helps in identifying the reasons and causes for that venture's failure. It also enables…
Abstract
The case illustrates an entrepreneurial voyage and venture creation and through it helps in identifying the reasons and causes for that venture's failure. It also enables discussion on the importance of planning a venture, more importantly; financing, managing, growing, and ending a venture and on how to avoid the pitfalls that befall such enterprises. This case can be used in Entrepreneurship courses as well as MBA, PGP and Executive Education programmes on Entrepreneurship.
Pallavi Pradeep Khobragade and Ajay Vikram Ahirwar
The purpose of this study is to monitor suspended particulate matter (SPM), PM2.5 and source apportionment study for the identification of possible sources during the year…
Abstract
Purpose
The purpose of this study is to monitor suspended particulate matter (SPM), PM2.5 and source apportionment study for the identification of possible sources during the year 2018–2019 at Raipur, India.
Design/methodology/approach
Source apportionment study was performed using a multivariate receptor model, positive matrix factorization (PMFv5.0) with a view to identify the various possible sources of particulate matter in the area. Back-trajectory analysis was also performed using NOAA-HYSPLIT model to understand the origin and trans-boundary movement of air mass over the sampling location.
Findings
Daily average SPM and PM2.5 aerosols mass concentration was found to be 377.19 ± 157.24 µg/m³ and 126.39 ± 37.77 µg/m³ respectively. SPM and PM2.5 mass concentrations showed distinct seasonal cycle; SPM – (Winter ; 377.19 ±157.25 µg/m?) > (Summer; 283.57 ±93.18 µg/m?) > (Monsoon; 33.20 ±16.32 µg/m?) and PM2.5 – (Winter; 126.39±37.77 µg/m³) > (Summer; 75.92±12.28 µg/m³). Source apportionment model (PMF) have been applied and identified five major sources contributing the pollution; steel production and industry (68%), vehicular and re-suspended road dust (10.1%), heavy oil combustion (10.1%), tire wear and brake wear/abrasion (8%) and crustal/Earth crust (3.7%). Industrial activities have been identified as major contributing factor for air quality degradation in the region.
Practical implications
Chemical characterization of aerosols and identification of possible sources will be helpful in abatement of pollution and framing mitigating strategies. It will also help in standardization of global climate model.
Originality/value
The findings provide valuable results to be considered for controlling air pollution in the region.
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Rajdeep Kumar Raut, Niranjan Shastri, Akshay Kumar Mishra and Aviral Kumar Tiwari
This study aims to investigate factors that influence the attitudes and intentions of investors towards environmental, social and governance (ESG) stocks in the presence of…
Abstract
Purpose
This study aims to investigate factors that influence the attitudes and intentions of investors towards environmental, social and governance (ESG) stocks in the presence of perceived risk as a moderator.
Design/methodology/approach
Data was collected through an online survey method from 341 investors with more than three years of investing experience. Smart PLS was used to analyse the data using two-stage structural equation modelling. First, a measurement model was performed for construct reliability and validity, followed by path analysis (structural model) for hypothesis testing and overall model predictability.
Findings
The findings show that both environmental concern (altruistic value) and economic concern (egoistic value) are crucial for the attitude and intention of investors to invest in ESG-backed stocks; however, environmental concern was found to be a more significant predictor of their behaviour, showing evidence of pro-environmental values in the decision-making of utility-seeking individuals. No significant impact of perceived risk was evident as a moderator of the relationship between attitude and intention towards ESG stocks.
Practical implications
The study's findings have implications for fund managers, policymakers, and the government. Values as antecedents were found to be influential in shaping investors’ attitudes and intentions towards the environmental cause. Fund managers could include more ESG-compliant companies in their portfolios, and the government can play an important role in encouraging investors by providing financial incentives. Corporates should also take strategic steps to adopt green production processes to secure long-term, sustainable capital funding.
Originality/value
To the best of the authors’ knowledge, there has been no research done in the field of ESG investing that takes into account the values (both altruistic and egoistic) of investors as potential antecedents of their attitudes and intentions.
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Raj Kumar Pittala, Satish Ben B., Syam Kumar Chokka and Niranjan Prasad
Microcapsule-embedded autonomic healing materials have the ability to repair microcracks when they come into contact with the crack by releasing the healing agent. The…
Abstract
Purpose
Microcapsule-embedded autonomic healing materials have the ability to repair microcracks when they come into contact with the crack by releasing the healing agent. The microcapsules with specific shape and thickness effect in releasing healing agent to the cracked surfaces. Thus, the purpose of this paper is to know the load bearing capacity of the self-healing microcapsules and the stresses developed in the material.
Design/methodology/approach
In the present study, self-healing microcapsule is modelled and integrated with the polymer matrix composite. The aim of the present study is to investigate failure criteria of Poly (methyl methacrylate) microcapsules by varying the shell thickness, capsule diameter and loading conditions. The strength of the capsule is evaluated by keeping the shell thickness as constant and varying the capsule diameter. Uniformly distributed pressure loads were applied on the capsule-reinforced polymer matrix composite to assess the failure strength of capsules and composite.
Findings
It is observed from the results that the load required to break the capsules is increasing with the increase in capsule diameter. The failure strength of microcapsule with 100 µm diameter and 5 µm thickness is observed as 255 MPa. For an applied load range of 40–160 N/mm2 on the capsules embedded composite, the maximum stress developed in the capsules is observed as 308 MPa.
Originality/value
Failure strengths of microcapsules and stresses developed in the microcapsule-reinforced polymer composites were evaluated.
Details
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Niranjan Devkota, Ashok Joshi, Ghanashyam Khanal, Sushanta Kumar Mahapatra, Nabaraj Gautam, Udaya Raj Paudel and Udbodh Bhandari
Agriculture, since time immemorial, has been a major sector in reducing poverty, accelerating economic activities and source of sustainability of a nation. As most of the youth in…
Abstract
Purpose
Agriculture, since time immemorial, has been a major sector in reducing poverty, accelerating economic activities and source of sustainability of a nation. As most of the youth in the 21st century are targeting the youth's career in the non-agricultural sector, attracting and involving the youths in agribusinesses is the need of the hour. In this regard, the research tries to understand the awareness and involvement of youth farmers in agripreneurship in Western Nepal.
Design/methodology/approach
Using a structured questionnaire, data were collected from both primary and secondary sources. On the basis of descriptive and inferential analysis, the ordered logit model is employed in the study. The research is based on explanatory research design through identifying farmers' awareness of agriculture entrepreneurship from 324 farmers of Bedkot Municipality, Kanchanpur, Nepal.
Findings
Study findings have shown that agricultural knowledge with overall awareness is statistically significant. Ordered logistic regression indicated that sex has somehow influenced technical and entrepreneur skills while agriculture information highly influenced education and training. The result shows that agricultural training is still the requirement of one-fourth of the farmers, whereas another quarter of farmers need subsidies.
Research limitations/implications
The study suggests that in order to enhance awareness, training, subsidy, market management and development program are widely needed. In the backdrop of declining agro-products and food security challenges, the study targets to offer an understanding to policymakers and stakeholders on addressing the dire need of agripreneurship among the youths around the world.
Originality/value
The study summarizes the state of knowledge of agripreneurship of Nepalese farmers, identifies emerging issues and policy implications and priorities for future applied research.