P. Lequeu, P. Lassince, T. Warner and G.M. Raynaud
Over the past several years, Pechiney has launched intensive R&D activities, in close connection with its main customers, aimed at tailoring property balances to specific…
Abstract
Over the past several years, Pechiney has launched intensive R&D activities, in close connection with its main customers, aimed at tailoring property balances to specific applications and at reducing the overall cost of manufactured aircraft parts. These close partnerships led to the development of a number of new alloys and tempers covering all the major aircraft structural parts, all of them bringing benefits in one or more design properties, and all of them having being chosen for new aircraft. Similarly, new special qualities were designed to reduce customer costs: low residual stress, high formability, age formable and weldable solutions were developed and chosen for their efficiency in lean manufacturing. It is the purpose of this paper to review these cost reduction and weight saving initiatives conducted by Pechiney. The main design property improvements for the newly developed alloys and tempers and practical applications of the special material qualities will be reported. In addition, the underlying metallurgical principles of the performance improvements will be discussed.
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Lisa Bornstein, Gonzalo Lizarralde, Kevin A. Gould and Colin Davidson
The aim of this paper is to add a new dimension to urban resilience by exploring how representations of disasters, reconstruction and human settlements are made, and how, by…
Abstract
Purpose
The aim of this paper is to add a new dimension to urban resilience by exploring how representations of disasters, reconstruction and human settlements are made, and how, by shaping plans and programs, they ultimately influence resilience.
Design/methodology/approach
The paper draws on James Scott's notion of “legibility” to ask how different representations simplify complex realities and how they are transformed into plans and programs. The paper first outlines the various broad analytic lens used to examine legibility to portray post‐disaster reconstruction, drawing on international literature and policies. The paper then focuses on post‐earthquake Haiti and analyzes eight reconstruction plans and reviews design proposals submitted for the Building Back Better Communities program to explore how different stakeholders portrayed the disaster, identified the reconstruction challenges and proposed to address human settlements.
Findings
Representations of the disaster, the reconstruction challenge and the housing problem were quite varied. While the plans assumed a very broad view of the reconstruction challenge (one that goes beyond the representations found in the literature), the BBBC program adopted a very narrow view of it (one that the literature condemns for failing to achieve sustainable resilience).
Research limitations/implications
The empirical research is exploratory, suggesting an approach that throws a new light on the analysis of plans and programs for improved resilience.
Practical implications
The study suggests that the representations that decision makers, institutions and organizations make of the world ultimately establish the framework in which resilience is constructed.
Originality/value
The lens of legibility confirms that the expression of different representations makes the world legible in different ways and therefore transforms the way in which resilience can be improved.
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The huge volume of biomedical literature provides a nice opportunity and challenge to induce novel knowledge by finding some connections among logical‐related medical concepts…
Abstract
Purpose
The huge volume of biomedical literature provides a nice opportunity and challenge to induce novel knowledge by finding some connections among logical‐related medical concepts This paper aims to propose a semantic‐based knowledge discovery system for mining novel connections from large online digital libraries.
Design/methodology/approach
The method takes advantages of the biomedical ontologies, MeSH and UMLS, as the source of semantic knowledge. A prototype system, Biomedical Semantic‐based Knowledge Discovery System (Bio‐SbKDS), is designed to uncover novel hypothesis/connections hidden in the biomedical literature. Using only the starting concept and the initial semantic relation derived from UMLS, Bio‐SbKDS can automatically generate the semantic types as category restrictions for concepts. Using the semantic types and semantic relations of the biomedical concepts, Bio‐SbKDS can identify the relevant concepts collected from Medline in terms of the semantic type and generate the novel hypothesis between these concepts based on the semantic relations.
Findings
The system successfully replicates Dr Swanson's famous discoveries: Raynaud disease/fish oil automatically, and generates much less intermediate concepts and spurious connections.
Originality/value
The method takes full advantage of the semantic knowledge of the biomedical concepts, compared with previous approaches, our methods generate much less but more relevant novel hypotheses. Another significant advantage over other traditional approaches is that our method requires much less human intervention in the discovery procedure.
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Knowledge can be created by drawing inferences from what is already known. Often some of the requisite information is lacking and has to be gathered by whatever research…
Abstract
Knowledge can be created by drawing inferences from what is already known. Often some of the requisite information is lacking and has to be gathered by whatever research techniques are appropriate, e.g. experiments, surveys etc. Even if the information has all been published already, unless it is retrieved no inferences will be drawn from it and consequently there will exist some knowledge that is implicit in the literature and yet is not known by anyone. This ‘undiscovered public knowledge’, as it is termed by Swanson, may exist in the following forms: (i) a hidden refutation or qualification of a hypothesis; (ii) an undrawn conclusion from two or more premises; (iii) the cumulative evidence of weak, independent tests; (iv) solutions to analogous problems; (v) hidden correlations between factors. Methods of classification may also play a direct role in the creation of original knowledge. Novel solutions to problems may be discovered by generating different combinations of the basic features of the solutions, as is done in morphological analysis. Alternatively a natural classification may identify gaps in existing knowledge. This paper reviews previous work on producing knowledge by information retrieval or classification and describes techniques by which hidden knowledge may be retrieved, e.g. serendipity in browsing, use of appropriate search strategies and, possibly in the future, methods based on Farradane's relational indexing or artificial intelligence.
Melissa van der Merwe, Johann F. Kirsten and Jacques H. Trienekens
This paper aims to make an empirical contribution by investigating the enforcement mechanisms and governance structures required to protect and govern a regional food product when…
Abstract
Purpose
This paper aims to make an empirical contribution by investigating the enforcement mechanisms and governance structures required to protect and govern a regional food product when public certification fails. As one of the recent additions to South Africa’s repertoire of products with a designated origin, Karoo Lamb made for an interesting case study.
Design/methodology/approach
A conjoint analysis was conducted to elicit the farmers’ preferred enforcement mechanisms to protect the authenticity of the Karoo Lamb product. The investigation, furthermore, draws on survey data collected among 73 farmers, five abattoirs, two processors/packers and five retail outlets to evaluate the governance structures of the Karoo Lamb supply chain.
Findings
The results indicate that due to failed public certification that is governed by market-like structures, Karoo Lamb is better off being governed by hierarchical structures. These structures are expected to allow for a stronger focus on stricter enforcement mechanisms.
Practical implications
At the farm level, the Karoo Lamb supply chain requires better enforcement mechanisms to protect the unique attributes of origin and taste to ensure the authenticity of Karoo Lamb. This change towards stricter enforcement requires more hierarchical structures to allow for private or mutual enforcement mechanisms.
Originality/value
This paper contributes empirically to the governance structure knowledge base by analysing the enforcement mechanisms and governance structures needed to enforce and protect, the quality and origin standards of a region of origin product, Karoo Lamb, in South Africa.
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Marta Fernández-Barcala, Manuel González-Díaz and Emmanuel Raynaud
The aim of this paper is to explain the organizational changes along supply chains when a geographical brand, i.e. a place name that has value for commercial purposes, becomes a…
Abstract
Purpose
The aim of this paper is to explain the organizational changes along supply chains when a geographical brand, i.e. a place name that has value for commercial purposes, becomes a geographical indication (GI).
Design/methodology/approach
Using a case study research design, this paper compares GI vs non-GI supply chains in the European Union and describes the organizational changes that occur in supply chains when a GI is adopted.
Findings
When a GI is adopted, an additional “public” level of governance is added along the supply chain that forces it to reallocate and specialize quality controls between the public and private levels of governance to avoid redundancies and to adopt more market-oriented mechanisms of governance in dyadic relationships. The paper argues that these changes occur because the private and public levels of governance complement one another.
Research limitations/implications
More aspects of supply chain management (the power balance or relationship stability) and a more systematic longitudinal analysis using supply chains in various agrifood industries should be considered to generalize the conclusions. An econometric analysis formally testing the main conclusions (propositions) is also required.
Practical implications
The changes needed to successfully adopt a GI are identified, and an explanatory map of these changes is offered.
Originality/value
The structural governance tensions created by the use of common-pool resources within supply chains are explored. It is hypothesized, first, that when a “common-pool resource”, namely, a geographical name, is used in a supply chain, some type of public level of governance that promotes cooperation is required to preserve its value. Second, this public level of governance complements the dyadic mechanisms of governance, requiring the specialization and reallocation of quality controls and the move toward more market-oriented transactions.
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Xavier Gellynck and Adrienn Molnár
The purpose of the paper is to identify chain‐level, product‐, and country‐specific characteristics of chain governance structures in the traditional food sector in the European…
Abstract
Purpose
The purpose of the paper is to identify chain‐level, product‐, and country‐specific characteristics of chain governance structures in the traditional food sector in the European Union (EU).
Design/methodology/approach
The approach combined taxonomy compilation: selecting chain governance structures, Selecting determining variables and assigning values to them; and pilot testing: individual interviews with 54 companies across Belgium, Italy and Hungary representing cheese, beer, white pepper and meat chains. The number of participants is 54.
Findings
It was found that the chains varied largely in terms of their complexity. Besides chain‐level, product‐, and country‐specific differences, the retailers' size is a determining factor of the applied governance structure.
Research limitations/implications
The research only considers traditional food chains.
Practical implications
The paper provides guidance for selecting an appropriate governance structure given the characteristics of the chain, the products or the country.
Originality/value
The paper compiles a taxonomy providing important insights to determining variables of the application of governance structures. Further, it analyzes chain‐level, product‐, and country‐specific differences.
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Annemarie Groot-Kormelinck, Jacques Trienekens and Jos Bijman
The aim of this paper is to study the influence of quality standards on contract arrangements in food supply chains.
Abstract
Purpose
The aim of this paper is to study the influence of quality standards on contract arrangements in food supply chains.
Design/methodology/approach
A qualitative double case study was conducted on the dairy and citrus sectors in Uruguay. A transaction cost theoretical framework was used. All current public and private quality standards applied by processors were studied in relation to contract arrangements between processors and upstream producers as well as downstream buyers for each sector.
Findings
Quality standards complement contract arrangements for upstream transactions, leading to hierarchy-type contract arrangements. Quality standards substitute contract arrangements for downstream transactions, leading to market- or hybrid-type contract arrangements.
Research limitations/implications
Longitudinal studies that measure changes in contract arrangements over time are recommended.
Practical implications
Supply chain actors can reduce transaction costs by aligning quality standards with appropriate contract arrangements – further supported by public instruments.
Originality/value
Quality standards have differential influence on underlying transaction characteristics, and therefore on contract arrangements, depending on the location of the transaction in the supply chain.