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Article
Publication date: 21 May 2019

Ida Marie Sandvik and Wendy Stubbs

The purpose of this paper is to explore the drivers, inhibitors and enablers of creating a textile-to-textile recycling system in the Scandinavian fashion industry. It…

Abstract

Purpose

The purpose of this paper is to explore the drivers, inhibitors and enablers of creating a textile-to-textile recycling system in the Scandinavian fashion industry. It investigates the technology, innovation and systemic changes required to enable circular supply chains.

Design/methodology/approach

The research study uses a qualitative, interpretivist approach, drawing on in-depth semi-structured interviews with stakeholders in the Scandinavian fashion industry.

Findings

The main inhibitors to textile-to-textile recycling systems in the Scandinavian fashion industry are: limited technology which creates a challenge for separating materials; high costs of research and development and building the supporting logistics; complexity of supply chains including the multitude of stakeholders involved in product development. The enablers are design and use of new materials, increased garment collection and collaboration. This research suggests that sorting and recycling technology can be enhanced with the use of digital technologies, as this would create transparency, traceability and automatisation.

Research limitations/implications

The research is limited by a small sample size and lack of representation of all key stakeholder groups, which limits the ability to generalise these findings. However, as an exploratory study, the findings provide insights that can be further tested in other contexts.

Originality/value

Understanding of textile-to-textile recycling is emerging both theoretically and practically, however, there is still much that is not understood. This research contributes to furthering understanding of how technology, collaboration and systemic change in the fashion industry can support opportunities for textile-to-textile recycling, thereby aligning with circular economy principles.

Details

Journal of Fashion Marketing and Management: An International Journal, vol. 23 no. 3
Type: Research Article
ISSN: 1361-2026

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Article
Publication date: 11 February 2021

Vahid Lotfi and Ali Lotfi

Subsequently, the response of idealized Morrow Point arch dam is studied due to stream, vertical and cross-stream ground motions for reservoir bottom/sidewalls conditions…

Abstract

Purpose

Subsequently, the response of idealized Morrow Point arch dam is studied due to stream, vertical and cross-stream ground motions for reservoir bottom/sidewalls conditions of both fully reflective and absorptive. For each combination, different orders of Hagstrom–Warburton (HW) condition are evaluated from accuracy point of view by comparing them against exact solutions. It should be emphasized that normalized length of reservoir near-field region is taken as a very low value of L/H = 0.2 during this process which makes it a very challenging test for any kind of truncation boundary condition.

Design/methodology/approach

In present study, dynamic analysis of concrete arch dam-reservoir systems is formulated by FE-(FE-TE) approach [i.e. finite element-(finite element-truncation element)]. In this technique, dam and reservoir are discretized by solid and fluid finite elements. Moreover, the HW high-order condition imposed at the reservoir truncation boundary. This task is formulated by employing a truncation element at that boundary. It is emphasized that reservoir far-field is excluded from the discretized model. The formulation is initially explained in details.

Findings

The trend in gaining accuracy with increase in order of HW condition were basically the same for all three types of excitations under both full reflective and absorptive reservoir bottom/sidewalls conditions. The only exception was for cross-stream excitation response which was showing less accurate results near the first major peak for moderate orders of HW (e.g. O3-2) in comparison to what was observed for responses due to symmetric excitations (stream and vertical). This is mainly attributed to the selection of evanescent-type parameters of HW condition which is based on the first symmetric mode of reservoir. However, it is noted that error diminishes even for cross-stream excitation as order increases. High orders of HW condition, such as O5-5 considered herein, generate highly accurate responses for all three possible excitations under both types of full reflective and absorptive reservoir bottom/sidewalls conditions. It is such that responses are hardly distinguishable from corresponding exact responses. This reveals that proposed FE-(FE-TE) analysis technique based on HW condition is quite successful, and one may fully rely on that for accurate and efficient analysis of concrete arch dam-reservoir systems.

Originality/value

Dynamic analysis of concrete arch dam-reservoir system is formulated by new method. HW high-order condition is applied for a very low and challenging reservoir length. Different orders are evaluated against exact solution with excellent agreement. Generalized matrices of truncation element are derived for FEM programmers. The method is discussed for all types of excitation and reservoir base conditions.

Details

Engineering Computations, vol. 38 no. 7
Type: Research Article
ISSN: 0264-4401

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Article
Publication date: 17 October 2018

Manoj Kumar Paras, Daniel Ekwall and Rudrajeet Pal

This paper aims to propose a framework for evaluating the performance of reverse value chain activities in the clothing industry operating at base of the pyramid…

Abstract

Purpose

This paper aims to propose a framework for evaluating the performance of reverse value chain activities in the clothing industry operating at base of the pyramid. Specifically, the research explores firm and supply chain factors influencing clothing reverse value chain activities with a focus on developing economies.

Design/methodology/approach

The study adopted an explorative technique using direct observations and semi-structured interviews to collect information from eight companies and two traders. Internal resources and value chain capabilities were examined using theoretical underpinnings of resource-based view, transaction cost economics and base of the pyramid.

Findings

The paper identified multiple benefits of offshoring reverse value chain activities to the developing countries (at the base of the pyramid). Low operation cost, skilled manpower, business knowledge and location are found to be internal success factors. While favourable government legislation and domestic recycling markets are important external factors contributing to the success. Developing economies such as India contribute to firm performance by integrating, transforming, acquiring and co-creating the resources at base of the pyramid. Further, it was found that to achieve higher assets specificity, a few companies have opened their own shops in African countries, while others have opened sourcing branches in Canada or the USA to ensure good quality of raw materials. Collaboration and coordination among different value chain partners minimise cost and increases profitability. Innovation in the process such as clothes mutilation for recycling has created new business opportunities.

Research limitations/implications

Information was collected from only eight organisations and two traders from India. Future scholars may extend the research to generalise the findings by documenting similar phenomena.

Practical implications

The proposed framework can serve a basis for the practitioners to evaluate firm performance, and the insights can be used to achieve sustainability by engaging producers, employees, consumers and community using base of the pyramid approach.

Originality/value

The study provides unique insights into the prevalent export and re-exports phenomena of used clothing. The resource-based view, transaction cost economics and base of the pyramid strategy underpinned together to develop a framework for understanding reverse value chain activities of clothing.

Details

Journal of Global Operations and Strategic Sourcing, vol. 12 no. 1
Type: Research Article
ISSN: 2398-5364

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Article
Publication date: 19 July 2021

Charbel Chedrawi and Yara Atallah

This paper aims to dynamically analyze the opportunities and challenges of AI in the defense sector in Lebanon or any security agency or any organization with sensitive…

Abstract

Purpose

This paper aims to dynamically analyze the opportunities and challenges of AI in the defense sector in Lebanon or any security agency or any organization with sensitive data through a resource-based view perspective, the adoption of artificial intelligence (AI)/narrow AI applications in the Lebanese Armed Forces (LAF) and to diagnose the current strategic orientation toward innovation and technology within the LAF while avoiding isomorphism.

Design/methodology/approach

The methodology is based on a qualitative interpretive case-study approach collected from several departments of the LAF. In fact, there is a developing convention to use qualitative research approaches among which case studies to study information technology phenomena (Trauth and Jessup, 2000; Benbasat et al., 1987; Klein and Meyers, 1999). Data were collected through centered semi-structured in-depth interviews (two to three hours each) with an interview guide coded abductively between the researchers and the interviewees conducted in numerous departments of the LAF with their top officials and generals (O1, O2, O3…); the anonymity of the interviewees was kept due to the sensitivity of the data collected, which took place between September 2018 and March 2019. Data consolidation and processing were conducted using NVivo.

Findings

This paper shows that the LAF is undeniably facing many challenges among which isomorphism caused by the lack of resources; it also shows that narrow AI applications provide new avenues for the LAF to avoid such institutional isomorphism.

Originality/value

The role of narrow AI in limiting isomorphism in the defense sector.

Details

Journal of Asia Business Studies, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1558-7894

Keywords

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Article
Publication date: 1 December 1998

Mounia Lalmas and Ian Ruthven

In this paper we report on a theoretical model of structured document indexing and retrieval based on the Dempster‐Shafer Theory of Evidence. This includes a description…

Abstract

In this paper we report on a theoretical model of structured document indexing and retrieval based on the Dempster‐Shafer Theory of Evidence. This includes a description of our model of structured document retrieval, the representation of structured documents, the representation of individual components, how components are combined, details of the combination process, and how relevance is captured within the model. We also present a detailed account of an implementation of the model, and an evaluation scheme designed to test the effectiveness of our model. Finally we report on the details and results of a series of experiments performed to investigate the characteristics of the model.

Details

Journal of Documentation, vol. 54 no. 5
Type: Research Article
ISSN: 0022-0418

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Article
Publication date: 1 June 1994

J R Barker

Discusses a new manufacturing philosophy, Schedule‐basedManufacturing and compares it to the widely used Manufacturing ResourcePlanning [MRPII]. Looks at the history of…

Abstract

Discusses a new manufacturing philosophy, Schedule‐based Manufacturing and compares it to the widely used Manufacturing Resource Planning [MRPII]. Looks at the history of the various manufacturing philosophies and how they have developed. Describes how SBM grew from interactive real‐time shop floor scheduling and outlines its benefits.

Details

Assembly Automation, vol. 14 no. 2
Type: Research Article
ISSN: 0144-5154

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Article
Publication date: 14 March 2016

Russell Ashmore and Neil Carver

– The purpose of this paper is to review policy or guidance on the implementation of Section 5(4) written by NHS mental health trusts in England and health boards in Wales.

Abstract

Purpose

The purpose of this paper is to review policy or guidance on the implementation of Section 5(4) written by NHS mental health trusts in England and health boards in Wales.

Design/methodology/approach

A Freedom of Information request was submitted to all trusts in England (n=57) and health boards in Wales (n=7) asking them to provide a copy of any policy or guidance on the implementation of Section 5(4). Documents were analysed using content analysis. Specific attention was given to any deviations from the national Mental Health Act Codes of Practice.

Findings

In total, 41 (67.2 per cent) organisations had a policy on the implementation of Section 5(4). There was a high level of consistency between local guidance and the Mental Health Act Codes of Practice. There were however; different interpretations of the guidance and errors that could lead to misuse of the section. Some policies contained useful guidance that could be adopted by future versions of the national Codes of Practice.

Research limitations/implications

The research has demonstrated the value of examining the relationship between national and local guidance. Further research should be undertaken on the frequency and reasons for any reuse of the section.

Practical implications

Greater attention should be given to considering the necessity of local policy, given the existence of national Codes of Practice.

Originality/value

This is the only research examining the policy framework for the implementation of Section 5(4).

Details

Mental Health Review Journal, vol. 21 no. 1
Type: Research Article
ISSN: 1361-9322

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Article
Publication date: 11 April 2021

Esra Barim and Feride Akman

This study aimed the synthesis and theoretical/experimental characterization of novel benzofuran-based acrylamide monomer.

Abstract

Purpose

This study aimed the synthesis and theoretical/experimental characterization of novel benzofuran-based acrylamide monomer.

Design/methodology/approach

Novel N-substituted acrylamide monomer, i.e. N-[2–(4-Bromo-benzoyl)-benzofuran-3-yl]-acrylamide (BBFA), was synthesized by reacting (3-Amino-benzofuran-2-yl)-(4-bromophenyl) methanone with acryloylchloride at 0–5oC. Nuclear magnetic resonance (1H-NMR), infrared (FT-IR) and UV-Visible spectrophotometer were used to elucidate the chemical structure of BBFA. Computational studies were performed using the DFT (B3LYP) method on the basis of 6-31 + G (d, p) using Gaussian 09 W and Gauss View 5.0 package in addition to the VEDA program, gauge-independent atomic orbital (GIAO) and time-dependent density functional theory (TD-DFT) methods.

Findings

Molecular geometry and vibration assignments of the BBFA monomer were calculated. The molecular structure of the monomer was examined. Both longest and shortest bonds were determined in the structure. The nucleophilic and electrophilic regions of the monomer were determined. The theoretical spectroscopic data of the monomer were compared with the experimental data; both were consistent with each other. The chemical reactivity of the monomer was also determined.

Originality/value

The synthesized BBFA monomer can be evaluated in many areas; from medicine to industry (such as textiles) owing to the presence of various active functional groups. Indeed, acrylamide copolymers are remarkable materials for polymer science and industry. The data produced in this study is original and adds to the scientific community.

Details

Pigment & Resin Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 20 February 2019

Sujan Piya

The purpose of this paper is to develop a framework for the manufacturer of a make-to-order company to simultaneously negotiate with multiple customers through mediator to…

Abstract

Purpose

The purpose of this paper is to develop a framework for the manufacturer of a make-to-order company to simultaneously negotiate with multiple customers through mediator to achieve order acceptance decisions (OADs).

Design/methodology/approach

The paper developed mathematical models for the manufacturer, as well as customers to revise their offers during negotiations. Moreover, the paper also proposed a method for the mediator to carry out his assigned duties to assist in negotiation. In the decision process, mediator acts as a bridge between the manufacturer and customers to reach an agreement. A numerical example is enumerated to illustrate the working mechanism and superiority of proposed framework as compared to the framework where simultaneous negotiations are carried out without the presence of mediator.

Findings

Iterative method of negotiation conducted without mediator leads to delay in reaching agreement as the aspiration level of manufacturer offer and counter-offer of customer will never cross each other. In addition, the party who submits the offer first may suffer as the opponent can take the advantage of his/her offer during negotiation, thereby, derailing the issue of fairness. Introducing mediator between the manufacturer and the customer for their negotiations could overcome these two issues. Numerical analysis clearly illustrates that, in average, the rounds of negotiation to reach an agreement can be reduced by 22 percent using proposed negotiation framework. In addition, the fairness in negotiations can be improved by 33 percent with the incorporation of mediator.

Originality/value

Through continuing research efforts in this domain, certain models and strategies have been developed for negotiation. Iterative method of negotiations without mediator will help neither the manufacturer nor the customer in terms of fairness and negotiations round to reach an agreement. To the best of the author’s knowledge, so far, this is the first instance of research work in the domain of OAD and negotiation framework that attempts to incorporate mediator for simultaneous negotiation between manufacturer and customers on multiple issues simultaneously.

Details

Benchmarking: An International Journal, vol. 26 no. 5
Type: Research Article
ISSN: 1463-5771

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Article
Publication date: 5 August 2019

Rodrigo Restrepo and Juan G. Villegas

The purpose of this paper is to present a case study in which data envelopment analysis (DEA) is used to evaluate and classify the suppliers of a Colombian motorcycle…

Abstract

Purpose

The purpose of this paper is to present a case study in which data envelopment analysis (DEA) is used to evaluate and classify the suppliers of a Colombian motorcycle assembly company. This tool allows the integration of several attributes into single performance measures (cross-efficiency and diversity efficiency) and subsequent classification based on the values obtained for these two metrics.

Design/methodology/approach

The classification uses a methodology based on two main tools. The first is an input-oriented cross-efficiency DEA model with ordinal variables to evaluate the suppliers’ performance, and the second is a classification of these into categories that identifies those with good performance for features that make them outstanding.

Findings

The assembly company segments its suppliers according to supply frequency. The results show that suppliers working under a just-in-time system achieve superior performance with respect to other suppliers.

Practical implications

The application of this methodology in a real-world case illustrates how DEA can be a useful tool to support the evaluation and classification of suppliers (a process of increasing complexity given the current trend to include multiple strategic measures together with classical operational measures). Moreover, the methodology illustrated in the study can be adapted to other similar settings.

Originality/value

The main contributions of this paper are twofold. First, to the best of our knowledge, this is the first study to illustrate the use of DEA in a real case related to supplier evaluation. Second, the presence of ordinal variables (e.g. quality or environmental ratings) gives rise to DEA variants seldom used in this context.

Propósito

Este artículo presenta un caso de estudio en el que se utiliza análisis envolvente de datos (DEA) para evaluar y clasificar los proveedores de una ensambladora colombiana de motocicletas. Dicha herramienta permite integrar múltiples atributos en dos medidas de desempeño (eficiencia cruzada y de diversidad) y la posterior clasificación de éstos con base en los valores obtenidos para ambas medidas.

Diseño/metodología/enfoque

La clasificación usa una metodología basada en dos herramientas. La primera es un modelo DEA de eficiencia cruzada orientado a las entradas con variables ordinales que se usa para evaluar el desempeño de los proveedores. La segunda es una clasificación de los proveedores en categorías para identificar aquellos con buen desempeño en algunas características que los hacen sobresalientes.

Resultados

La compañía segmenta sus proveedores de acuerdo con la frecuencia de abastecimiento. Los resultados muestran que los proveedores que operan bajo justo a tiempo (Just-in-time, JIT) tienen un desempeño superior con respecto a los demás proveedores.

Implicaciones prácticas

La aplicación de esta metodología en un caso real ilustra como DEA es una herramienta útil para apoyar la evaluación y clasificación de proveedores (un proceso de complejidad creciente gracias a la tendencia actual de incluir medidas estratégicas junto a las medidas operacionales comúnmente utilizadas). Además, la metodología utilizada puede adaptarse fácilmente a otras situaciones similares.

Originalidad/valor

Las contribuciones de este artículo son dos. Primero, hasta donde sabemos, este es el primer estudio que ilustra el uso de DEA en un caso real de evaluación de proveedores. Segundo, la presencia de variables ordinales (por ejemplo, evaluaciones de calidad y medioambiente) resultan en modelos DEA que son poco utilizados en este contexto.

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