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Article
Publication date: 15 February 2018

Gabriele Griffin

In “Can the subaltern speak?,” Gayatri Chakravorty Spivak makes the important distinction between representation as “Vertretung” and “Darstellung.” She also produces a strong…

Abstract

Purpose

In “Can the subaltern speak?,” Gayatri Chakravorty Spivak makes the important distinction between representation as “Vertretung” and “Darstellung.” She also produces a strong version of whom she regards as a subaltern woman. Thirty years on both the distinction between “Vertretung” and “Darstellung” and the question of who the subaltern woman is, remain extremely important, not least in methodological considerations in cross-cultural contexts. A number of questions may be asked in relation to representation, such as: how distinct are its two meanings in the interviewing context? And how do they relate to the notion of the co-production of knowledge which has gained such traction in the past three decades? The paper aims to discuss these issues.

Design/methodology/approach

In this paper, I draw on cross-cultural interviewing experiences. Starting from the silence of illiterate rural women in a study conducted in Madhya Pradesh, India, in 2011 (Mohanraj), this paper draws on the research experiences of the author and a number of projects reported on in Cross-Cultural Interviewing (Griffin, 2016) to elucidate how one might re-think both representation and subalternality in the contemporary globalized context.

Findings

The experiences of cross-cultural interviewing I draw on in this paper show that in the contemporary context subalternality may be more productively understood in terms of a continuum rather than as the radical state of unreachable, unspeaking alterity that Spivak proposes.

Originality/value

The paper contributes new perspectives on Spivak’s notion of the unspeaking alterity of the subaltern in light of globalized developments over the past 30 years and specific experiences of cross-cultural interviewing, as these comment on Spivak’s insights.

Details

Qualitative Research Journal, vol. 18 no. 2
Type: Research Article
ISSN: 1443-9883

Keywords

Article
Publication date: 6 April 2021

Ifadhila Affia and Ammar Aamer

Real-time visibility and traceability in warehousing could be accomplished by implementing the internet-of-things (IoT) technology. The purpose of this paper is to develop a…

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Abstract

Purpose

Real-time visibility and traceability in warehousing could be accomplished by implementing the internet-of-things (IoT) technology. The purpose of this paper is to develop a roadmap for designing an IoT-based smart warehouse infrastructure and, respectively, design and apply the IoT-based smart warehouse infrastructure using a developed roadmap. More specifically, this study first identifies critical components to design an IoT-based smart warehouse infrastructure. Second, the study at hand identifies essential factors that contribute to the successful implementation of IoT-based smart warehouse infrastructure.

Design/methodology/approach

A qualitative-descriptive method, through a comprehensive review of the relevant studies, was used in this study to develop a roadmap. A prototype system was then designed to simulate a case company’s actual warehouse operations in one of the manufacturing companies in Indonesia.

Findings

A framework was proposed which is viable for designing an IoT-based smart warehouse infrastructure. Based on the data collected from a case company, the proposed smart warehouse infrastructure design successfully implemented real-time visibility and traceability and improved overall warehouse efficiency.

Research limitations/implications

While the framework in this research was carried out in one of the developing counties, the study could be used as the basis for future research in a smart warehouse, IoT and related topics.

Originality/value

This research enhances the limited knowledge to establish the IoT infrastructure for a smart warehouse to enable real-time visibility and traceability. This study is also the first to specifically propose a framework for designing an IoT-based smart warehouse infrastructure. The proposed framework can motivate companies in developing countries to deploy efficient and effective smart warehouses using IoT to drive the countries’ economic growth.

Details

Journal of Science and Technology Policy Management, vol. 13 no. 1
Type: Research Article
ISSN: 2053-4620

Keywords

Article
Publication date: 1 May 2008

R.V. Mahendra Gowda and S. Mohanraj

Textile technologists have already recognized the role of fibre friction in various textile processes. Attempts have been made to develop a novel instrument system to quantify…

Abstract

Textile technologists have already recognized the role of fibre friction in various textile processes. Attempts have been made to develop a novel instrument system to quantify fibre friction and relate it with fibre processing, yarn quality and ultimately, the fabric handle. In this context, the current paper presents research work carried out in designing and developing a novel system to measure friction in various textile fibre assemblies. The paper discusses the novel features of the Computer Aided Friction Tester, designed and developed exclusively for characterising friction in fibres, sheets of yarn, fabrics, nonwovens, polymeric films, composites and other technical textiles. It also provides the highlights of frictional characteristics measured in various textile fibre assemblies and the reasons for their occurrences.

Details

Research Journal of Textile and Apparel, vol. 12 no. 2
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 15 May 2009

Dipankar Chatterjee and Suman Chakraborty

The purpose of this paper is to carry out a systematic energy analysis for predicting the first and second law efficiencies and the entropy generation during a laser surface…

Abstract

Purpose

The purpose of this paper is to carry out a systematic energy analysis for predicting the first and second law efficiencies and the entropy generation during a laser surface alloying (LSA) process.

Design/methodology/approach

A three‐dimensional transient macroscopic numerical model is developed to describe the turbulent transport phenomena during a typical LSA process and subsequently, the energy analysis is carried out to predict the entropy generation as well as the first and second law efficiencies. A modified k–ε model is used to address turbulent molten metal‐pool convection. The phase change aspects are addressed using a modified enthalpy‐porosity technique. A kinetic theory approach is adopted for modelling evaporation from the top surface of the molten pool.

Findings

It is found that the heat transfer due to the strong temperature gradient is mainly responsible for the irreversible degradation of energy in the form of entropy production and the flow and mass transfer effects are less important for this type of phase change problem. The first and second law efficiencies are found to increase with effective heat input and remain independent of the powder feed rate. With the scanning speed, the first law efficiency increases whereas the second law efficiency decreases.

Research limitations/implications

The top surface undulations are not taken care of in this model which is a reasonable approximation.

Practical implications

The results obtained will eventually lead to an optimized estimation of laser parameters (such as laser power, scanning speed, etc.), which in turn improves the process control and reduces the cost substantially.

Originality/value

This paper provides essential information for modelling solid–liquid phase transition as well as a systematic analysis for entropy generation prediction.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 19 no. 3/4
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 10 April 2017

Katerina Kassela, Marina Papalexi and David Bamford

The purpose of this paper is to focus on the application of quality function deployment (QFD) in a Housing Association (HA) located in the UK. Facing the problem of improving a…

Abstract

Purpose

The purpose of this paper is to focus on the application of quality function deployment (QFD) in a Housing Association (HA) located in the UK. Facing the problem of improving a company’s performance, practitioners and academics have fashioned and applied a variety of models, theories and techniques.

Design/methodology/approach

The research questions were developed from a review of the quality and process improvement literature and tested using evidence from field-based, action research within a UK HA company. The case study provides insight to the benefits and challenges arising from the application of QFD.

Findings

The results provided insight to the benefits and challenges arising from the application of a specific tool, QFD. The primary findings were: QFD can be successfully adapted, applied and utilised within the challenging environment of social housing and other sectors, such as professional services; the model can be modified to use most processes/sub-processes; it must include both external and internal requirements and, to be useful, use more detailed process parameters appropriately.

Practical implications

The conclusions drawn add to ongoing commentaries on aspects of quality improvement, especially the application of QFD within the service sector. The authors develop questions for future research regarding improvement projects.

Originality/value

The conclusion proposes that the implementation of QFD should have a positive impact upon a company; if approached in the right manner. It provides a useful mechanism for developing evidence-based strategy of operational change, control and improvement. The research proposes questions for future research into aspects of operational quality and efficiency.

Details

The TQM Journal, vol. 29 no. 3
Type: Research Article
ISSN: 1754-2731

Keywords

Article
Publication date: 11 September 2017

Rudolf Espada, Armando Apan and Kevin McDougall

The purpose of this paper was to develop an integrated framework for assessing the flood risk and climate adaptation capacity of an urban area and its critical infrastructures to…

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Abstract

Purpose

The purpose of this paper was to develop an integrated framework for assessing the flood risk and climate adaptation capacity of an urban area and its critical infrastructures to help address flood risk management issues and identify climate adaptation strategies.

Design/methodology/approach

Using the January 2011 flood in the core suburbs of Brisbane City, Queensland, Australia, various spatial analytical tools (i.e. digital elevation modeling and urban morphological characterization with 3D analysis, spatial analysis with fuzzy logic, proximity analysis, line statistics, quadrat analysis, collect events analysis, spatial autocorrelation techniques with global Moran’s I and local Moran’s I, inverse distance weight method, and hot spot analysis) were implemented to transform and standardize hazard, vulnerability, and exposure indicating variables. The issue on the sufficiency of indicating variables was addressed using the topological cluster analysis of a two-dimension self-organizing neural network (SONN) structured with 100 neurons and trained by 200 epochs. Furthermore, the suitability of flood risk modeling was addressed by aggregating the indicating variables with weighted overlay and modified fuzzy gamma overlay operations using the Bayesian joint conditional probability weights. Variable weights were assigned to address the limitations of normative (equal weights) and deductive (expert judgment) approaches. Applying geographic information system (GIS) and appropriate equations, the flood risk and climate adaptation capacity indices of the study area were calculated and corresponding maps were generated.

Findings

The analyses showed that on the average, 36 (approximately 813 ha) and 14 per cent (approximately 316 ha) of the study area were exposed to very high flood risk and low adaptation capacity, respectively. In total, 93 per cent of the study area revealed negative adaptation capacity metrics (i.e. minimum of −23 to <0), which implies that the socio-economic resources in the area are not enough to increase climate resilience of the urban community (i.e. Brisbane City) and its critical infrastructures.

Research limitations/implications

While the framework in this study was obtained through a robust approach, the following are the research limitations and recommended for further examination: analyzing and incorporating the impacts of economic growth; population growth; technological advancement; climate and environmental disturbances; and climate change; and applying the framework in assessing the risks to natural environments such as in agricultural areas, forest protection and production areas, biodiversity conservation areas, natural heritage sites, watersheds or river basins, parks and recreation areas, coastal regions, etc.

Practical implications

This study provides a tool for high level analyses and identifies adaptation strategies to enable urban communities and critical infrastructure industries to better prepare and mitigate future flood events. The disaster risk reduction measures and climate adaptation strategies to increase urban community and critical infrastructure resilience were identified in this study. These include mitigation on areas of low flood risk or very high climate adaptation capacity; mitigation to preparedness on areas of moderate flood risk and high climate adaptation capacity; mitigation to response on areas of high flood risk and moderate climate adaptation capacity; and mitigation to recovery on areas of very high flood risk and low climate adaptation capacity. The implications of integrating disaster risk reduction and climate adaptation strategies were further examined.

Originality/value

The newly developed spatially explicit analytical technique, identified in this study as the Flood Risk-Adaptation Capacity Index-Adaptation Strategies (FRACIAS) Linkage/Integrated Model, allows the integration of flood risk and climate adaptation assessments which had been treated separately in the past. By applying the FRACIAS linkage/integrated model in the context of flood risk and climate adaptation capacity assessments, the authors established a framework for enhancing measures and adaptation strategies to increase urban community and critical infrastructure resilience to flood risk and climate-related events.

Details

International Journal of Disaster Resilience in the Built Environment, vol. 8 no. 4
Type: Research Article
ISSN: 1759-5908

Keywords

Article
Publication date: 15 September 2020

Jitendra Sharma

The purpose of this paper is twofold: to incorporate the symbolic relationships among the attributes of customer requirements (CRs) and engineering characteristics (ECs) as well…

Abstract

Purpose

The purpose of this paper is twofold: to incorporate the symbolic relationships among the attributes of customer requirements (CRs) and engineering characteristics (ECs) as well as to factor in the values numerically to enhance the prioritization process for an improved, comprehensive quality function deployment (QFD) analysis. The aim is to develop the concept of assimilating and factoring in the often-ignored interrelationships among CRs and ECs utilizing the weighted average method for the CR and EC correlations with overall calculations.

Design/methodology/approach

After a brief literature review of the methods utilized, the research paper discusses the framework for the correlation triangle challenge and introduces a novel mathematical solution utilizing triangle values in conjunction with computed initial raw weights for CRs and initial priority scores for ECs. The capability and applicability of the proposed model are demonstrated with a real-life example.

Findings

Through the proposed technique, the roof and the interrelationship triangle's signs and symbols are translated into numerical values for each permutation of ECs and CRs, and then the prioritization values are processed and finalized. The proposed model successfully modifies and removes vagueness from an otherwise overlooked part of the QFD process.

Practical implications

The illustrated case study aptly proves that the proposed methodology yields more revealing and informative outcomes for engineers and designers, thus adding much-needed reliability to the outcome and its analysis. The validation conducted through the rank comparison endorses the premise, and the results obtained reflect the strength and accuracy of the progressive QFD as a product planning tool.

Originality/value

The research article proposes a fresh and unique QFD approach that solves typical procedural complications encountered in a regular QFD. Whereas the traditional methods neglect the interrelationships among CRs and ECs, this new methodology employs them in an improved, numerical way by incorporating them in quantitative analysis, which leads to judicious and improved decision-making.

Details

The TQM Journal, vol. 33 no. 3
Type: Research Article
ISSN: 1754-2731

Keywords

Article
Publication date: 2 December 2020

Fatih Erdoğdu, Seyfullah Gökoğlu and Mehmet Kara

The current study aimed to develop and validate Mobile Information Security Awareness Scale (MISAS) based on the prototype model for measuring information security awareness and…

Abstract

Purpose

The current study aimed to develop and validate Mobile Information Security Awareness Scale (MISAS) based on the prototype model for measuring information security awareness and the relevant literature.

Design/methodology/approach

The scale was developed and validated with the participation of 562 students from four universities. The construct validity of the scale was tested through exploratory factor analysis and confirmatory factor analysis.

Findings

The reliability of the scale was tested through corrected item-total correlations and Cronbach alpha. The MISAS includes six factors and 17 items. The identified factors were labeled as backup, instant messaging and navigation, password protection, update, access permission and using others' devices.

Research limitations/implications

The scale included only the human aspects of mobile information security. The technical aspects are not within the scope of this study. For this reason, future studies might develop and validate a different scale focusing on the technical aspects of mobile information security.

Originality/value

The developed scale contributes to the literature on the human aspects of mobile information security.

Details

Online Information Review, vol. 45 no. 2
Type: Research Article
ISSN: 1468-4527

Keywords

Article
Publication date: 14 February 2022

Arman Firoz Velani, Vaibhav S. Narwane and Bhaskar B. Gardas

This paper aims to identify the role of internet of things (IoT) in water supply chain management and helps to understand its future path from the junction of computer science and…

Abstract

Purpose

This paper aims to identify the role of internet of things (IoT) in water supply chain management and helps to understand its future path from the junction of computer science and resource management.

Design/methodology/approach

The current research was studied through bibliometric review and content analysis, and various contributors and linkages were found. Also, the possible directions and implications of the field were analyzed.

Findings

The paper’s key findings include the role of modern computer science in water resource management through sensor technology, big data analytics, IoT, machine learning and cloud computing. This, in turn, helps in understanding future implications of IoT resource management.

Research limitations/implications

A more extensive database can add up to more combinations of linkages and ideas about the future direction. The implications and understanding gained by the research can be used by governments and firms dealing with water management of smart cities. It can also help find ways for optimizing water resources using IoT and modern-day computer science.

Originality/value

This study is one of the very few investigations that highlighted IoT’s role in water supply management. Thus, this study helps to assess the scope and the trend of the case area.

Article
Publication date: 23 May 2023

Taraprasad Mohapatra and Sudhansu Sekhar Mishra

The study aims to verify and establish the result of the most suitable optimization approach for higher performance and lower emission of a variable compression ratio (VCR) diesel…

Abstract

Purpose

The study aims to verify and establish the result of the most suitable optimization approach for higher performance and lower emission of a variable compression ratio (VCR) diesel engine. In this study, three types of test fuels are taken and tested in a variable compression ratio diesel engine (compression ignition). The fuels used are conventional diesel fuel, e-diesel (85% diesel-15% bioethanol) and nano-fuel (85% diesel-15% bioethanol-25 ppm Al2O3). The effect of bioethanol and nano-particles on performance, emission and cost-effectiveness is investigated at different load and compression ratios (CRs). The optimum performance and lower emission of the engine are evaluated and compared with other optimization methods.

Design/methodology/approach

The test engine is run by diesel, e-diesel (85% diesel-15% bioethanol) and nano-fuel (85% diesel-15% bioethanol-25 ppm Al2O3) in three different loadings (4 kg, 8 kg and 12 kg) and CR of 14, 16 and 18, respectively. The optimum value of energy efficiency, exergy efficiency, NOX emission and relative cost variation are determined against the input parameters using Taguchi-Grey method and confirmed by response surface methodology (RSM) technique.

Findings

Using Taguchi-Grey method, the maximum energy and exergy efficiency, minimum % relative cost variation and NOX emission are 24.64%, 59.52%, 0 and 184 ppm, respectively, at 4 kg load, 18 CR and fuel type of nano-fuel. Using RSM technique, maximum energy and exergy efficiency are 24.8% and 62.9%, and minimum NOX emission and % cost variation are 208.4 ppm and –6.5, respectively, at 5.2 kg load, 18 CR and nano-fuel. The RSM is suggested as the most appropriate technique for obtaining maximum energy and exergy efficiency, and minimum % relative cost; however, for lowest possible NOX emission, the Taguchi-Grey method is the most appropriate.

Originality/value

Waste rice straw is used to produce bioethanol. 4-E analysis, i.e. energy, exergy, emission and economic analysis, has been carried out, optimized and compared.

Details

World Journal of Engineering, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1708-5284

Keywords

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