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Article
Publication date: 1 September 2022

Arthi R., Nayana J.S. and Rajarshee Mondal

The purpose of optimal protocol prediction and the benefits offered by quantum key distribution (QKD), including unbreakable security, there is a growing interest in the practical…

167

Abstract

Purpose

The purpose of optimal protocol prediction and the benefits offered by quantum key distribution (QKD), including unbreakable security, there is a growing interest in the practical realization of quantum communication. Realization of the optimal protocol predictor in quantum key distribution is a critical step toward commercialization of QKD.

Design/methodology/approach

The proposed work designs a machine learning model such as K-nearest neighbor algorithm, convolutional neural networks, decision tree (DT), support vector machine and random forest (RF) for optimal protocol selector for quantum key distribution network (QKDN).

Findings

Because of the effectiveness of machine learning methods in predicting effective solutions using data, these models will be the best optimal protocol selectors for achieving high efficiency for QKDN. The results show that the best machine learning method for predicting optimal protocol in QKD is the RF algorithm. It also validates the effectiveness of machine learning in optimal protocol selection.

Originality/value

The proposed work was done using algorithms like the local search algorithm or exhaustive traversal, however the major downside of using these algorithms is that it takes a very long time to revert back results, which is unacceptable for commercial systems. Hence, machine learning methods are proposed to see the effectiveness of prediction for achieving high efficiency.

Details

International Journal of Pervasive Computing and Communications, vol. 19 no. 5
Type: Research Article
ISSN: 1742-7371

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Article
Publication date: 19 April 2018

Nayana Chandani Swarnapali Rathnayaka Mudiyanselage

The purpose of this paper is to explore the role played by the board of directors in corporate sustainability (CS) disclosure within the Asian context in which sustainability…

1982

Abstract

Purpose

The purpose of this paper is to explore the role played by the board of directors in corporate sustainability (CS) disclosure within the Asian context in which sustainability reporting (SR) is an emerging phenomenon.

Design/methodology/approach

Data are collected from a sample of 100 listed Sri Lankan companies over a period of four years (2012-2016), representing practically all the business sectors. This study draws on both agency and resource dependence theories, while binary logistic regression is performed for the data analysis.

Findings

The results point out that firms that follow a sustainability disclosure policy have larger boards, a higher proportion of independent directors and more female directors. Contrary to certain common assumptions, firms that practice sustainability disclosure are not influenced by dual leadership, board ethnicity and board ownership. This study helps firms to understand whether their boards can influence the sustainability disclosure choice or not and further, to validate the appropriateness of the agency theory and the resource dependence theory for examining issues of this nature.

Originality/value

This study contributes significantly to the extant literature on this subject by broadening the geographical coverage, which has generally been limited to the West in corporate disclosure studies.

Details

Corporate Governance: The International Journal of Business in Society, vol. 18 no. 6
Type: Research Article
ISSN: 1472-0701

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Article
Publication date: 28 July 2021

Nayana Shetty and Chakrasali R.L.

“the purpose of this study/paper” or “this study/paper aims to” in the Purpose section of the Abstract. The integration of distributed generation (DG) to the utility grid is yet…

141

Abstract

Purpose

“the purpose of this study/paper” or “this study/paper aims to” in the Purpose section of the Abstract. The integration of distributed generation (DG) to the utility grid is yet another approach to provide reliable and secured power.

Design/methodology/approach

The significant concern in this contemporary world are the day-to-day increasing power demand, lack of energy and increasing environmental pollution, which are threatening the existence of living things.

Findings

The research focus here is to adequacy and security in the grid-integrated hybrid distributed generation (DG) having photovoltaic (PV) and proton exchange membrane fuel cell.

Originality/value

PV system is a clean source of generation and suitable for many applications. Photovoltaic cell captures the energy from solar irradiation. To track the maximum power from PV, perturb and observe method is used. As it is intermittent in nature, integrating PV with fuel cell makes the hybrid source more reliable. Power electronic interfacing devices are used to integrate this hybrid DG source to microgrid. The simulation of this grid-connected hybrid DG is performed using Matlab/Simulink environment.

Details

Circuit World, vol. 47 no. 3
Type: Research Article
ISSN: 0305-6120

Keywords

Available. Open Access. Open Access
Article
Publication date: 17 December 2019

RM Nayana Chandani Swarnapali

The purpose of this paper is to investigate whether the communication that takes place through the sustainability disclosure (SD) route has an effect on earnings informativeness…

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Abstract

Purpose

The purpose of this paper is to investigate whether the communication that takes place through the sustainability disclosure (SD) route has an effect on earnings informativeness (EI) of firms in an emerging market.

Design/methodology/approach

The sample consists of companies listed on the Colombo Stock Exchange in Sri Lanka, where SD is a new phenomenon and a voluntary reporting initiative. Regression analysis is executed on the panel data to achieve the study objective.

Findings

The result reveals a positive association between SD and EI. Sustainability reports may provide useful information that supplements merely financial data, aiding the stakeholders to interpret the financial reporting better. The finding premises that SD enhances EI, communicating value relevant information to capital market participants.

Practical implications

SD does much to reduce capital market participants’ uncertainties, thereby aiding them to assess financial information better.

Social implications

The findings of the study confirm earlier research findings that indicate a positive association between SD and EI, suggesting that capital market participants are gradually becoming aware of the value relevance of sustainability reports.

Originality/value

This is the first study investigating SD and EI association that is specific to the Sri Lankan context. Owing to the sparse studies done on the SD and EI association, this study should contribute significantly to the existing literature by broadening the geographical coverage.

Details

Asian Journal of Accounting Research, vol. 5 no. 1
Type: Research Article
ISSN: 2443-4175

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Article
Publication date: 4 August 2022

Nayana Dissanayake, Bo Xia, Martin Skitmore, Bambang Trigunarsyah and Vanessa Menadue

The purpose of this study was to prioritize the appropriate generic contractor selection criteria for Engineering–Procurement–Construction (EPC) projects in the construction…

429

Abstract

Purpose

The purpose of this study was to prioritize the appropriate generic contractor selection criteria for Engineering–Procurement–Construction (EPC) projects in the construction industry.

Design/methodology/approach

Proceeding from a review of previous studies and validation by a small group of experts, a preliminary set of 16 criteria was first identified. This was followed by three rounds of Delphi surveys: firstly, with 64 experienced participants confirming the relevance of the 16 criteria; secondly, with a reduced subgroup of 47 more experienced participants scoring the importance of each; and finally, providing the opportunity for these 47 to revise their scores in the light of knowing the aggregated results of the previous round.

Findings

The results show the consensus view, of which the most important criteria are ranked as past performance, project understanding, technical attributes, key personnel, health and safety, past experience, time, management, financial, contractual and legal, quality, cost, relationships, environmental and sustainability, organizational and industrial relations, and geographic location.

Originality/value

The findings are useful for both practitioners and academics in making a significant contribution to the body of knowledge of the EPC process. This will assist in providing a better understanding of criteria importance and pave the way to developing an EPC contractor selection model involving the criteria most needed to objectively identify potential contractors and evaluate tenders.

Details

Engineering, Construction and Architectural Management, vol. 30 no. 10
Type: Research Article
ISSN: 0969-9988

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Article
Publication date: 5 August 2019

Suzana Rodrigues Resende, Kamilla Soares Silva, André Luiz Borges Machado, Daiane Sousa Peres, Nayana Ribeiro Soares, Lismaíra Gonçalves Caixeta Garcia, Letícia Fleury Viana and Priscila Alonso dos Santos

The purpose of this study is to evaluate the yield, physico-chemical and microbiological parameters during the shelf life of the Minas Frescal cheese hand-manufactured by family…

137

Abstract

Purpose

The purpose of this study is to evaluate the yield, physico-chemical and microbiological parameters during the shelf life of the Minas Frescal cheese hand-manufactured by family farms.

Design/methodology/approach

In the milk, analyses of total bacterial counts, somatic cell counts and centesimal composition were performed. The milk coagulation was analyzed, with different curd times (40, 80 and 120 min), with respect to the proximate composition, pH, titratable acidity, yield and microbiological counts. The means were compared using the Tukey test with a significance level of 5 per cent. The most probable number of microorganisms were also determined in water.

Findings

The results for milk quality were within the requirements established in Normative Instruction 62, except for total dry extract. It was found that curd time did not influence the protein and fat in dry matter contents; however, the ash content in cheese of 40 min of curd time (2.8 g/100g) is significantly higher (p = 0.02) than the values found for the other curd times. The same behavior was observed for moisture content (p = 0.04). The parameters determining the cheese quality were outside the standards for human consumption, but this result is directly related to the water conditions, which were outside of potability levels. To meet the requirements established in the legislation, dairy products must follow strict standards of quality hygiene, both the raw material (water, milk) and their employees who act directly in the process.

Originality/value

For the preparation of the Minas Frescal cheese, it takes several steps, from obtaining the milk to the product ready to be consumed, so the importance of doing this monitoring and evaluating its quality.

Details

Nutrition & Food Science , vol. 50 no. 1
Type: Research Article
ISSN: 0034-6659

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Article
Publication date: 15 April 2020

RMNC Swarnapali

The purpose of this paper is to discover whether corporate sustainability disclosure has a potential impact on the market value and earnings quality of firms in an emerging market.

1554

Abstract

Purpose

The purpose of this paper is to discover whether corporate sustainability disclosure has a potential impact on the market value and earnings quality of firms in an emerging market.

Design/methodology/approach

The data were collected from 220 companies listed in the Colombo Stock Exchange (CSE) in Sri Lanka during the period 2012-2016. Firm value proxies by Tobin’s Q, while earnings quality proxies by discretionary accruals (DAC). The study is premised on value-enhancing theory for firm value and transparent financial reporting perspective for earnings quality. Regression analyses are executed on the panel data to achieve the study objectives.

Findings

The results reveal a positive relationship between sustainability reporting (SR) and firm market value, accepting the value-enhancing theory while rejecting the value-destroying theory. This finding suggests that investors pay a premium in the financial markets for firms that perform in an environmentally and socially responsible manner, compared to firms that do not perform in a similar manner. In the same vein, the results reveal that sustainability disclosure and DAC are negatively and significantly associated, resulting in high-quality earnings. The result is consistent with the transparent financial reporting hypothesis, which is also in line with the managers’ integrity motivation.

Originality/value

This is the first study investigating the consequences of SR that is specific to the Sri Lankan context. Owing to the sparse studies on consequences of SR, this study contributes significantly to the extant literature by broadening the geographical coverage to include a developing country setting.

Details

International Journal of Law and Management, vol. 62 no. 3
Type: Research Article
ISSN: 1754-243X

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Article
Publication date: 8 February 2016

Parminder Singh

The aim of the paper is to shed light on the use of chitosans and chitooligosaccharides as biopreservatives in various foods animal. Foods of animal and aquatic origin (milk…

758

Abstract

Purpose

The aim of the paper is to shed light on the use of chitosans and chitooligosaccharides as biopreservatives in various foods animal. Foods of animal and aquatic origin (milk, meat, fish, eggs, sea foods, etc) become contaminated with a wide range of microorganisms (bacteria, molds and yeasts) during harvesting, transporting, processing, handling and storage operations. Due to the perishable nature of these foods, their preservation is of utmost importance. Though many synthetic chemicals are available, yet their use is quite restricted due to their hazardous effects on human health.

Design/methodology/approach

Within the domain of food industry, traditionally chitosan is used for biopreservation of foods, which is well known for its nutritional and medicinal properties in human nutrition. However, chitooligosaccharides also possess a number of nutraceutical and health promoting properties in addition to their preservative effect and shelf-life extension of foods. In this study, the comparative effects of both chitosan and chitooligosaccharides on preservation of foods of animal and aquatic origin have been summarized.

Findings

Though chitosan has been extensively studied in various foods, yet the use of chitooligosaccharides has been relatively less explored. Chitooligosaccharides are bioactive molecules generated from chitosan and have several advantages over the traditional use of chitosan both in food products and on human health. But unfortunately, little or no literature is available on the use of chitooligosaccharides for preservation of some of the foods of animal origin. Notable examples in this category include cheese, beef, pork, chicken, fish, sea foods, etc.

Originality/value

This paper focuses on the effects of chitosans and chitooligosaccharides on the processing and storage quality of foods of animal and aquatic origin, which offers a promising future for the development of functional foods.

Details

Nutrition & Food Science, vol. 46 no. 1
Type: Research Article
ISSN: 0034-6659

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Article
Publication date: 31 August 2012

Vathsala Wickramasinghe and Nayana Fonseka

The purpose of this paper is to explore and compare current practice of the measurement and reporting of human resource (HR) information by firms belonging to the manufacturing…

1705

Abstract

Purpose

The purpose of this paper is to explore and compare current practice of the measurement and reporting of human resource (HR) information by firms belonging to the manufacturing and service sectors in Sri Lanka.

Design/methodology/approach

Survey methodology was used and 30 firms belonging to the manufacturing and service sectors responded. For the data analysis descriptive statistics, χ2 test, principal component factor analysis and independent sample t‐test were used.

Findings

There were sectoral differences in reporting some of the HR indicators. HR indicators were mainly collated internally and a limited number of indicators were externally disclosed. A majority of firms, irrespective of business sector, maintained records of HR indicators in the manual form. Three main factors that inhibit the measurement and reporting of HR were identified as “Insufficient resource allocation”, “Lack of knowledge in human resource measurement and reporting”, and “Negative impact on organization”.

Research limitations/implications

The research was conducted using survey research methodology as a pilot study to establish baseline data and to be a source of general guidance in stimulating future research.

Practical implications

The findings suggested that firms in Sri Lanka need to have more effective systems for the measurement and reporting of HR.

Originality/value

The majority of past studies on the measurement and reporting of HR were conducted on the voluntary disclosure of information in annual reports. Firms were selected on the basis of the market capitalization, and data were analysed using content analysis. Yet, the literature suggests that the content analysis of disclosed annual report information is mainly based on a non‐random sample of firms and many firms do not disclose all the available information. The current empirical survey‐based study explored and compared HR measurement and reporting practices of firms belonging to the manufacturing and service sectors in Sri Lanka.

Details

Journal of Human Resource Costing & Accounting, vol. 16 no. 3
Type: Research Article
ISSN: 1401-338X

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Article
Publication date: 19 July 2024

Sevar Dilkhaz Neamat, James H. Haido and George Wardeh

This study aims to address sustainability challenges in construction by exploring the structural performance and environmental benefits of incorporating pozzolanic waste glass…

44

Abstract

Purpose

This study aims to address sustainability challenges in construction by exploring the structural performance and environmental benefits of incorporating pozzolanic waste glass (WG) into ultra-high-performance reinforced concrete (UHPRC) beams.

Design/methodology/approach

A comprehensive evaluation of UHPRC beams was conducted, incorporating varying ratios (10%, 20% and 30%) of WG powder alongside a consistent 0.75% inclusion of basalt fiber. The investigation encompassed the entire UHPRC production process, including curing, casting and molding, while evaluating workability and physical properties. Furthermore, the environmental impact, particularly CO2 emissions associated with UHPRC mixture components, was also assessed. Type K thermocouples were employed to analyze temperature dynamics during fabrication, providing valuable insights.

Findings

The findings demonstrate positive implications for using pozzolanic WG as a cement substitute in UHPRC beams.

Originality/value

This research stands out for its unique focus on the combined effects of incorporating recycled pozzolanic glass waste on the structural performance and environmental footprint of UHPRC beams.

Details

International Journal of Building Pathology and Adaptation, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2398-4708

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