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| Freyer, Bernhard; University of Natural Resources and Life Sciences (BOKU); bernhard.freyer@boku.ac.at; Bingen, Jim; Michigan State University, USA; bingen@msu.edu; Paxton, Rebecca; University of Natural Resources and Life Sciences (BOKU); Rebecca.Paxton@boku.ac.at. |
| In a continuously expanding, globalizing, and industrializing organic market, organic consumers confront increasing complexity in organic product representation, labeling, and information that challenges how they build trust in organic products. We present a conceptual framework to analyze how consumers might build and practice trust in the organic agrifood chain. We asked specifically about the role of multicriteria assessment tools (MCATs) for trust building. We identified three consumer trust types: uninformed trust in labels (type 1); informed trust in extensive information, control, and certification (type 2); and informed and engaged trust in forms of close farmer–consumer relationships (type 3). Three concepts of... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Ethics; Governance; Multicriteria assessment tools; Organic farming; Reflexivity; Reflectivity; Systems thinking; Trust. |
| Ano: 2014 |
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| Fezzani, Ridha; Berger, Laurent. |
| An automated signal-based method was developed in order to analyse the seafloor backscatter data logged by calibrated multibeam echosounder. The processing consists first in the clustering of each survey sub-area into a small number of homogeneous sediment types, based on the backscatter average level at one or several incidence angles. Second, it uses their local average angular response to extract discriminant descriptors, obtained by fitting the field data to the Generic Seafloor Acoustic Backscatter parametric model. Third, the descriptors are used for seafloor type classification. The method was tested on the multi-year data recorded by a calibrated 90-kHz Simrad ME70 multibeam sonar operated in the Bay of Biscay, France and Celtic Sea, Ireland. It... |
| Tipo: Text |
Palavras-chave: Multibeam; Reflectivity; Backscatter angular response; Segmentation. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00423/53465/56648.pdf |
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| Lamarche, Geoffroy; Lurton, Xavier. |
| Multibeam echosounders are becoming widespread for the purposes of seafloor bathymetry mapping, but the acquisition and the use of seafloor backscatter measurements, acquired simultaneously with the bathymetric data, are still insufficiently understood, controlled and standardized. This presents an obstacle to well-accepted, standardized analysis and application by end users. The Marine Geological and Biological Habitat Mapping group (Geohab.org) has long recognized the need for better coherence and common agreement on acquisition, processing and interpretation of seafloor backscatter data, and established the Backscatter Working Group (BSWG) in May 2013. This paper presents an overview of this initiative, the mandate, structure and program of the working... |
| Tipo: Text |
Palavras-chave: Multibeam echosounders; Calibration; Reflectivity; Mapping; Seafloor. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00385/49655/50179.pdf |
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