Academic literature on the topic 'ET 230'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'ET 230.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "ET 230"

1

Viers, Catherine. "Bruniquel (Tarn-et-Garonne). 228 et 230, rue du Château." Archéologie médiévale, no. 43 (December 1, 2013): 167. http://dx.doi.org/10.4000/archeomed.9805.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Caubet, Annie. "Des yeux et des lunettes." Syria, no. 83 (January 1, 2006): 167–75. http://dx.doi.org/10.4000/syria.230.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Goossens, Michel. "XML et le futur du Web." Cahiers GUTenberg, no. 28-29 (1998): 180. http://dx.doi.org/10.5802/cg.230.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Connes, Alain. "Analyse et géométrie." L’annuaire du Collège de France, no. 109 (March 1, 2010): 81–91. http://dx.doi.org/10.4000/annuaire-cdf.230.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Compagnon, Olivier. "Les Cahiers des Amériques latines : bilan d’étape et perspectives." Cahiers des Amériques latines 2010/3, no. 65 (December 15, 2010): 7–16. http://dx.doi.org/10.4000/cal.230.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Breitel, Damien, Thibaud Lenoir, Ludovic Rillardon, and Pierre Guigui. "230 Cals vicieux du rachis thoracique et lombaire: analyse de l’équilibre sagittal pré et postopératoire." Revue de Chirurgie Orthopédique et Réparatrice de l'Appareil Moteur 93, no. 7 (November 2007): 126. http://dx.doi.org/10.1016/s0035-1040(07)79571-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Glémain, Pascal. "Proudhon et la Banque du peuple, Olivier Chaïbi. Connaissances et Savoirs, « Economie et gestion, histoire », 2010, 230 pages." Revue internationale de l'économie sociale: Recma, no. 319 (2011): 120. http://dx.doi.org/10.7202/1020814ar.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Motte, Claude, and Marie-Christine Vouloir. "Frontières administratives et identités communales. Le cas de la France, XVIII-XXe siècles." Historical Review/La Revue Historique 5 (January 13, 2009): 213. http://dx.doi.org/10.12681/hr.230.

Full text
Abstract:
<p>Parmi les différentes déclinaisons du terme "frontière" (naturelle, politique, administrative, identitaire), existe-t-il une combinaison d'entre elles qui résisterait le plus farouchement à l'épreuve du temps? Le cas de la France qui, au sein de l'Europe, connaît une exception administrative particulière, est intéressant à observer. Ses nombreuses frontières intérieures ont repoussé avec obstination toute tentative de réduction de leur nombre. Sans doute parce que, laissée à l'initiative des populations locales et respectée par les successifs gouvernements, la définition des territoires s'est appuyée sur la reconnaissance des identités communales construites au cours des siècles par le quotidien des habitants. La correspondance cartographique établie entre le tissu paroissial du XVIIIe siècle en France, et le maillage communal d'aujourd'hui illustre, en dépit des quelques variations observées, la remarquable stabilité de ses frontières administratives.</p><p> </p>
APA, Harvard, Vancouver, ISO, and other styles
9

Puisieux, F., P. de Groote, P. Dewailly, and G. Ducloux. "Suivi à 3 ans et demi d’une cohorte de 230 patients artéritiques avec et sans antiphospholipides." La Revue de Médecine Interne 18 (January 1997): 451s. http://dx.doi.org/10.1016/s0248-8663(97)80168-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Hesmondhalgh, David. "Musique, émotion et individualisation." Réseaux 25, no. 141-142 (April 2007): 203–30. http://dx.doi.org/10.3166/rseaux.141-142.203-230.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "ET 230"

1

Zouai, Manon M. "Entre les Murs et L'exclusion: L'echec du Systeme Educatif Francais." Scholarship @ Claremont, 2013. http://scholarship.claremont.edu/scripps_theses/230.

Full text
Abstract:
This thesis examines the issues of the modern French education system through an analysis of the film, Entre Les Murs (2008) and French education's socio-historical and political context. The study finds that the way in which France thinks about authority, language, and multiculturalism leads to the exclusion of certain students from the learning process. The aim of the study is to critically rethinks these issues in light of theories on race, identity, and postcolonialism in order to eventually propose solutions so that all students may fully flourish in modern French society.
APA, Harvard, Vancouver, ISO, and other styles
2

Pons-Branchu, Edwidge. "Datation haute résolution de spéléothèmes (230 Th/234 U et 226 Ra/238 U) : application aux reconstitutions environnementales autour des sites du Gard et du Meuse/Haute Marne." Aix-Marseille 3, 2001. http://www.theses.fr/2001AIX30094.

Full text
Abstract:
Nous avons réalisé l'étude de spéléothèmes du Gard et de la région de l'Est du bassin de Paris. La datation fine a été appliquée aux reconstitutions environnementales actuelles et passées pour les derniers 250 ka. Cette approche vise dans un premier temps à valider les datations U/Th réalisées a haute résolution et sur de petites quantités de matière, sur la période de temps très récente (0- 10ka BP) pour laquelle cette méthode est difficile à utiliser. Parallèlement, nous avons teste sur cette période de temps récente et sur les mêmes échantillons, la datation par excès de 226 Ra. Pour toute la gamme d'application des datations U/Th, nous avons teste plusieurs modes de corrections des âges, pour prendre en compte les biais liés à la présence de matériel détritique dans ces carbonates impurs. .
We have investigated the Gard and the eastern Paris basin environmental reconstruction by using U-series dating of speleothems. The first aim of this study was to validate the high resolution U-series dating of small size samples over the recent period (0- 10 kyr) for which this method is of difficult use. For this period, we also have tested the 226 Ra dating techniques for the U/Th dated speleothem. For the whole period on which U/Th is valid, several correction methods were compared in order to take into account bias due to detrital material within these impure carbonates. These methodological investigations enabled to investigate several research axes. We discussed the origin of speleothems breaking from a Gard cave. Speleothem U/Th dating has been used for a chronological scale for the Eastern Paris basin karstification. We have shown the importance of the presence and the erosion of a non carbonated cover overlying the karstified limestone on the speleothem uranium composition. .
APA, Harvard, Vancouver, ISO, and other styles
3

Nzamba, Diba Pombo Théodore [Verfasser], and Gerhard [Gutachter] Droesser. "Enjeux de la dégradation de l'environnement en Afrique Crise écologique et conception négro-africaine de la vie. Approches éthique et théologique / Théodore Nzamba Diba Pombo. Gutachter: Gerhard Droesser." Würzburg : Universität Würzburg, 2015. http://d-nb.info/1111125260/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Pagani, Laurent. "Construction, installation et utilisation d'un récepteur millimétrique à 230 GHz, POM 2." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37600208p.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

El, Asmar Raymond [Verfasser], Martin [Gutachter] Leiner, Nikolaus [Gutachter] Knoepffler, and Klaus [Gutachter] Dicke. "Positivité dêtre et négativité de non-être dans loeuvre de Paul Tillich / Raymond El Asmar ; Gutachter: Martin Leiner, Nikolaus Knoepffler, Klaus Dicke." Jena : Friedrich-Schiller-Universität Jena, 2017. http://d-nb.info/1177603616/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Chomette, Sébastien. "Etude des évolutions microstructurales et comportement mécanique des alliages base nickel 617 et 230 à haute température." Thesis, Toulouse, INPT, 2009. http://www.theses.fr/2009INPT030G/document.

Full text
Abstract:
Dans le cadre du développement des Réacteurs à Haute Température (RHT), un des systèmes retenus pour la quatrième génération de centrale nucléaire, l’utilisation d’un cycle indirect est envisagée. Ce type d’installation, utilisant de l’hélium comme caloporteur, nécessite un échangeur intermédiaire de chaleur (Intermediate Heat eXchanger, IHX) le plus compact possible entre les circuits primaire et secondaire. Les contraintes imposées par la conception ainsi que les conditions sévères d’utilisation pour ce type d’installation (température maximale 850°C à 950°C, durée de vie 20000 h) ont orienté le choix des matériaux constitutifs de l’IHX vers deux alliages base nickel en solution solide : l’Inconel 617 et le Haynes 230. Le premier matériau a été largement étudié dans les années 1980 lors du projet allemand sur les RHT car possédant de bonnes propriétés mécaniques et en corrosion à haute température mais sa forte teneur en cobalt potentiellement activable est à considérer. Le Haynes 230, plus récent, possède des caractéristiques similaires à celles de l’alliage 617, le cobalt ayant été remplacé par du tungstène. L’objectif de cette thèse est d’étudier le comportement mécanique à haute température de ces deux alliages en relation avec les évolutions de leur microstructure. Les observations microstructurales à l’état de réception révèlent la présence de carbures primaires (M6C), la majorité étant répartie de manière homogène. Des carbures secondaires M23C6, peu nombreux, sont visibles à l’état de réception pour les deux matériaux. Les vieillissements thermiques imposés aux alliages à 850°C permettent une précipitation importante de carbures M23C6 sur les lignes de glissement et aux joints de grains, la taille de ces carbures augmentant et leur nombre réduisant avec la durée de traitement. A 950°C, l’évolution microstructurale conduit à une précipitation intragranulaire beaucoup plus limitée et à une évolution intergranulaire plus importante. Pour les deux matériaux, les observations de la microstructure et les résultats de dureté montrent que la majorité des évolutions microstructurales se produisent avant 1000 h aux deux températures étudiées. Les caractéristiques mécaniques de ces alliages ont été testées en traction, en fluage et en fatigue et fatigue relaxation. En particulier, les propriétés à 850°C et 950°C ont été étudiées pour différentes charges (en fluage), vitesses de déformation (en traction) et durées de relaxation (fatigue relaxation). Les effets d’un traitement initial ont également été étudiés, tels que l’effet d’un vieillissement thermique testé en fluage et traction et l’effet d’une prédéformation sur le fluage. Il ressort de cette étude que différents mécanismes de déformation sont mis en jeu successivement ou en parallèle au cours des essais réalisés. Ainsi, l’importance de la précipitation des carbures sur les propriétés mécaniques de l’Inconel 617 et du Haynes 230 a pu être démontrée, malgré leur statut d’alliages en solution solide. Par ailleurs, un même mécanisme thermiquement activé opère sur une très large gamme de vitesses de déformation, correspondant aux essais de traction, fluage et relaxation. Cette mise en relation entre microstructure et propriétés mécaniques permet de déterminer les avantages de chaque alliage ainsi que leurs limites d’utilisation dans le cadre de la fabrication d’un échangeur de chaleur de centrale nucléaire
High Temperature Reactors (HTR), is one of the innovative nuclear reactor designed to be inherently safer than previous generation and to produce minimal waste. The most critical metallic component in that type of reactor is the Intermediate Heat eXchanger (IHX). The constraints imposed by the conception and the severe operational conditions (high temperature of 850°C to 950°C, lifetime of 20,000 h) have guided the IHX material selection toward two solid solution nickel base alloys, the Inconel 617 and the Haynes 230. Inconel 617 is the primary candidate alloy thanks to its good high temperature mechanical and corrosion properties and the large data base developed in previous programs. However, its high cobalt content has to be considered as an issue (nuclear activation). The more recent alloy Haynes 230, in which most of the cobalt has been replaced by tungsten, present characteristics similar to the 617 alloy. The objective of this thesis is to study the high temperature mechanical behaviour of both alloys in relation with their microstructural evolutions. The as received microstructural observations have revealed primary carbides (M6C). Most of this precipitates are evenly distributed in the materials. Few M23C6 secondary carbides are observed in both alloys in the as received state. Thermal ageing treatments at 850°C lead to an important M23C6 precipitation on slip lines and at grain boundaries. The size of this carbides increases and their number decreases with increasing ageing duration. The intragranular precipitation of secondary carbides at 950°C is more limited and the intergranular evolution more important than at 850°C. The microstructural observations and the hardness evolution of both alloys show that the main microstructural evolutions occur before 1,000 h at both studied temperatures. The mechanical properties of the Inconel 617 and the Haynes 230 have been studied using tensile, creep, fatigue and relaxation-fatigue tests. Particularly, the properties at 850°C and 950°C have been evaluated using several stress levels (creep), strain rates (tensile) and relaxation duration (fatigue). The effects of initial treatments have also been studied, i.e.ageing treatments effects on creep and tensile properties and cold-work effects on creep properties. At high temperature, the as received Inconel 617 does not show classical creep behaviour. This study shows the importance of the fast carbides precipitation on their mechanical properties, despite the fact that the Inconel 617 and the Haynes 230 are listed as solid solution alloys. Low cycle fatigue tests with and without holding time have been performed at 850°C under air and under vacuum on both alloys. The results showed that cyclic hardening, cyclic stability and life time are closely related to the duration of the holding time. Furthermore, a single thermally activated mechanism operates over a very wide range of strain rates, corresponding to tensile tests, creep and relaxation. The link between microstructure and mechanical behaviour presented in this thesis helps to determine the advantages as the operation limits of each alloy in order to manufacture a nuclear power plant heat exchanger
APA, Harvard, Vancouver, ISO, and other styles
7

St-Georges, Kim. "Modélisation et simulation du phénomène de diffusion des progiciels de gestion intégrée au sein de réseaux industriels." Mémoire, École de technologie supérieure, 2007. http://espace.etsmtl.ca/230/1/ST%2DGEORGES_Kim.pdf.

Full text
Abstract:
Le phénomène de concurrence internationale auquel les entreprises font face aujourd'hui les pousse à optimiser leur gestion d'information. Les systèmes de gestion intégrée, soit les systèmes ERP (Enterprise Resource Planning), permettent ainsi aux entreprises d'optimiser leur gestion d'information en intégrant une grande quantité d'information en temps réel selon une structure d'affaire complexe. Actuellement, une panoplie de systèmes ERP sont disponibles et plusieurs éditeurs se livrent concurrence pour offrir un progiciel toujours plus performant. Afin de se tailler une place parmi la concurrence, il est donc important pour les éditeurs de bien comprendre la dynamique de diffusion des systèmes ERP au sein des différents réseaux industriels. Malgré le fait que la théorie de la diffusion couvre depuis longtemps ces comportements de propagation par réseautage dans le segment des innovations logicielles, aucun modèle ne quantifie, ni ne décrit de façon dynamique par l'entremise de la simulation ce type phénomène. En réponse à cette problématique, le présent mémoire propose un modèle de propagation de progiciels de gestion intégrée au sein de réseaux d'affaires, en tenant compte des caractéristiques du réseau et de l'influence de la publicité dans son ensemble. Le modèle proposé dans ce mémoire est basé sur un modèle à influence mixte. Il utilise la modélisation par événements discrets. Le modèle présenté nous a permis de décrire la diffusion de systèmes ERP sous un angle épidémiologique, en plus de suivre le développement à chaque période de l'évolution du phénomène de diffusion, et ce, pour chacune des entreprises du réseau. Il ne s'agit là que d'une base à la modélisation de ce type de phénomène, limité à rexploration du sujet par la structure du réseau et certaines caractéristiques principales de bases. L'étude se limite également à la propagation de systèmes ERP par adoption complète d'une solution et, par conséquent, ne tient pas compte des adoptions partielles de multiples systèmes ERP
APA, Harvard, Vancouver, ISO, and other styles
8

Nazareno, Jorge [Verfasser], and Bertram [Akademischer Betreuer] Stubenrauch. "Der Mensch in der Welt von heute : ein Gespräch zwischen dem Personverständnis Romano Guardinis und dem Menschenbild der Pastoralkonstitution "Gaudium et spes" / Jorge Nazareno ; Betreuer: Bertram Stubenrauch." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2020. http://d-nb.info/1211957233/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Wandler, Christoph H. [Verfasser], and Helmut [Akademischer Betreuer] Hoping. ""Die Rettung der menschlichen Person" (Zweites Vatikanisches Konzil - Gaudium et spes 3) - Mensch und Liturgie im sakralen Raum : : phänomenologisch-theologische Studien zum Phänomen der Sakralität im liturgischen Raum." Freiburg : Universität, 2014. http://d-nb.info/1123480370/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Zermatten, Coralie [Verfasser], Gert [Akademischer Betreuer] Melville, and Jean-Pierre [Akademischer Betreuer] Mahé. "Les formes de communication des chartreuses de Franconie avec leur ordre et leur environnement 1328-1525 / Coralie Zermatten. Gutachter: Gert Melville ; Jean-Pierre Mahé. Betreuer: Gert Melville ; Jean-Pierre Mahé." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://d-nb.info/1067191011/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "ET 230"

1

Sheasby, Anne. Soupes: 135 recettes savoureuses et inspirantes présentées en 230 superbes photographies. Montréal: Modus Vivendi, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Pierre, Robert. Les principales familles de Touraine et leur implantation géographique aux XVIIe et XVIIIe siècles: État portant sur 230 paroisses. 2nd ed. [La Membrolle-sur-Choisille]: Centre généalogique de Touraine, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Tertullian and the church. Cambridge: Cambridge University Press, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Lajoie, Monique. Les insectes: 200 questions et réponses. Québec: Publications du Québec, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Skyline Nantes: Cirmad et Ateliers 234. Paris: Archibooks + Sautereau, 2012.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Charron, Gilles. Calcul intégral: Mathématique 203. 2nd ed. Laval, Québec: Études vivantes, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Rich Cannings. Himanshu Dwivedi. Zane Lackey. Hacking sur le Web 2.0: Vulnérabilité du Web 2.0 et sécurisation. [S.l.]: Pearson France, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Pérez, José-Philippe. Thermodynamique: Fondements et applications, avec 200 exercices et problèmes résolus. Paris: Masson, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Pérez, José-Philippe. Optique: Fondements et applications avec 200 exercices et problèmes résolus. 5th ed. Paris: Masson, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Charron, Gilles. Mathématique 203 : calcul différentiel et intégral II. Montréal, Qué: Études vivantes, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "ET 230"

1

Bissar, Dounia, Helen Phillips, and Cécile Tschirhart. "Toi et Moi." In Foundations French 1, 1–12. London: Macmillan Education UK, 2008. http://dx.doi.org/10.1007/978-0-230-36651-0_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Bissar, Dounia, Helen Phillips, and Cécile Tschirhart. "Vacances et Loisirs." In Foundations French 1, 89–100. London: Macmillan Education UK, 2008. http://dx.doi.org/10.1007/978-0-230-36651-0_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Bissar, Dounia, Helen Phillips, and Cécile Tschirhart. "Education et Expérience." In Foundations French 1, 101–12. London: Macmillan Education UK, 2008. http://dx.doi.org/10.1007/978-0-230-36651-0_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Beeching, Kate, and Annie Fontaine Lewis. "Qui et où?" In Foundations French 2, 55–66. London: Macmillan Education UK, 2008. http://dx.doi.org/10.1007/978-0-230-36659-6_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

de Mottoni, Barbara Faes. "Il ms. Douai, Bibliothèque municipale 434/I e le questioni n. 230 e 260 «De raptu»." In Textes et Etudes du Moyen Âge, 103–25. Turnhout: Brepols Publishers, 2006. http://dx.doi.org/10.1484/m.tema-eb.4.00302.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Lefebvre, David. "Théophraste sur les principes physiques de Platon dans le fr. 230 FHS&G et dans sa Métaphysique." In Les principes cosmologiques du platonisme, 63–89. Turnhout: Brepols Publishers, 2017. http://dx.doi.org/10.1484/m.mon-eb.5.114799.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

David, Albert, Nicolas Monomakhoff, Amir Hasnaoui, Sébastien Damart, Luisa Zibara, and Sonia Abdennadher Cheffi. "Web 2.0 et organisation: retours d’expériences." In L’impact du Web 2.0 sur les organisations, 53–95. Paris: Springer Paris, 2013. http://dx.doi.org/10.1007/978-2-8178-0433-0_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

David, Albert, Nicolas Monomakhoff, Amir Hasnaoui, Sébastien Damart, Luisa Zibara, and Sonia Abdennadher Cheffi. "Web 2.0 et organisations: une problématique complexe." In L’impact du Web 2.0 sur les organisations, 11–49. Paris: Springer Paris, 2013. http://dx.doi.org/10.1007/978-2-8178-0433-0_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Nicolosi, Anika. "Le peregrinazioni dell’anima. Gregorio di Nazianzo, Antologia Palatina, VIII 210." In Instrumenta Patristica et Mediaevalia, 443–53. Turnhout: Brepols Publishers, 2017. http://dx.doi.org/10.1484/m.ipm-eb.5.113047.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Ducrot, Oswald. "1984. Le Dire et le dit. Paris, Minuit, selected 171, 189–192, 203–210. Anonymous translator." In The Discourse Studies Reader, 167–75. Amsterdam: John Benjamins Publishing Company, 2014. http://dx.doi.org/10.1075/z.184.39duc.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "ET 230"

1

Kawahara, Akimaro, Michio Sadatomi, Hideki Matsuo, and Satoshi Shimokawa. "Investigation of Characteristics of Gas-Liquid Two-Phase Flows in a Rectangular Microchannel With Return Bends." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-10011.

Full text
Abstract:
Gas-liquid two-phase flows in a horizontal rectangular microchannel with return bends have been investigated. The width and the depth of the microchannel are 240 μm and 230 μm, respectively. T-junction type gas-liquid mixer was used to introduce gas and liquid in the channel. In order to know the effects of liquid properties, distilled water, pure ethanol, 49wt% ethanol aqueous solution and HFE7200 were used as the test liquids, while nitrogen gas as the test gas. The flow pattern, the bubble velocity, the bubble length and the liquid slug length were measured, and the void fraction was determined as the ratio of the gas superficial velocity to the bubble velocity. The bubble velocity at a downstream position from the bend is faster than that at an upstream position, and thus the void fraction is smaller at a downstream position. The bubble velocity data were well correlated with the well-known drift flux model with Kawahara et al.’s distribution parameter correlation. The bubble length data at the upstream and the downstream positions are also correlated with the scaling law proposed by Garstecki et al., irrespective of the test liquids. The liquid slug length data are correlated with an exponential function of the void fraction. The ratio of the bubble length to the bubble pitch is also well correlated with a linear function of the homogeneous void fraction.
APA, Harvard, Vancouver, ISO, and other styles
2

Lim, D., R. Seliktar, J. Wee, L. Nunes, and E. Farrell. "Morphological and Elastic Properties of the Glenoid Region of the Shoulder." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-43054.

Full text
Abstract:
Researchers have tried to assess the morphological and mechanical characteristics of bone using various methods with a limited success (Mow and Hayes, 1997, and Cowin, 2001). This may be due to the complexity for documentation and characterization of architecture by the anisotropic and nonhomogeneous characteristic of the bone. The bones of the shoulder joint complex are particularly deprived of information on their mechanical and morphological properties. Very little is known for example on the mechanics and morphology of the glenoid of the shoulder. The present work presents an attempt to identify a proper method for the measurement and characterization of the morphology and mechanics of bone, particularly in the glenoid. Our results show that trabecular lines are directed at 82.15° ± 7.98° relative to the glenoid articular surface, young’s modulus obtained from CT scan was 230 ± 8 MP, and the elastic tensors obtained from cadaver were 326 ± 78 MPa for E2222, 144 ± 22 MPa for E1111=E3333, 49 ± 7 MPa for E3311, 59 ± 9 MPa for E1122=E2233, 51 ± 8 MPa for E1313, and 70 ± 10 MPa for E1212=E2323. These results were consistent with Wolf’s Law and were in agreement with results reported in literatures (Anglin et al., 1999, Frich et al., 1998, and Mansat et al., 1998).
APA, Harvard, Vancouver, ISO, and other styles
3

Mclennan, Alec, Philippe Spätig, Jean-Christophe Le Roux, Joshua Waters, Peter Gill, Jack Beswick, and Norman Platts. "INCEFA-PLUS Project: The Impact of Using Fatigue Data Generated From Multiple Specimen Geometries on the Outcome of a Regression Analysis." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21422.

Full text
Abstract:
Abstract The INCEFA-PLUS project (INcreasing Safety in NPPs by Covering gaps in Environmental Fatigue Assessment) aims to generate and analyse Environmentally-Assisted Fatigue (EAF) experimental data studying parameters such as mean strain, hold times and surface finish. To understand the implications of these parameters for environmental fatigue assessments, these tests were carried out at 300 °C in air and light water reactor primary coolant environments (at 230 °C and 300 °C). Over the duration of this project around 230 fatigue data points were generated by different organisations using a common testing methodology, but with differing specimen geometries. Of these 230 data points, 23 were obtained from tests done using hollow specimen designs. Recent work comparing the fatigue lives of hollow to those of solid specimens indicates that on average the use of hollow specimens results in reduced fatigue lives. This has been explained in terms of the additional hoop and radial strains applied to the specimen due to the internal pressure of the hollow specimen. Given the examples published in the literature on the topic, the comparison of data generated using hollow and solid specimen geometries within the INCEFA-PLUS database has been a particular concern. This paper aims to explore the differences between hollow and solid specimen geometries within the INCEFA-PLUS database, highlight the potential risks of including both geometries in a single analysis, and discusses the approach taken by the project to mitigate the identified risks. The work presented in this paper details three approaches for the data obtained from hollow specimens: 1) exclude the data, 2) include the data as is, or 3) include the data with a correction on the strain amplitude. The strain amplitude correction will be based on the theoretical basis presented in Gill et al. [1], and extended to account for the different hollow specimen geometries used across the INCEFA-PLUS programme. This work demonstrates the robustness of the data analysis performed on the INCEFA-PLUS database to the use of differing specimen geometries. It also develops an explanation for the apparent difference in fatigue life between tests conducted on hollow and solid specimens under test conditions that are nominally the same. Furthermore, this paper builds on the mechanistic understanding presented in Gill et al. [1] and generalises across several Laboratories.
APA, Harvard, Vancouver, ISO, and other styles
4

Ozar, Basar, Jae Jun Jeong, Abhinav Dixit, Jose Enrique Julia´, Takashi Hibiki, and Mamoru Ishii. "Local and Area-Averaged Flow Structure of Air-Water Two-Phase Flow in a Vertical Annulus." In 16th International Conference on Nuclear Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/icone16-48067.

Full text
Abstract:
The flow structure of gas-liquid two-phase flow has been investigated in a vertical annulus channel. The annulus consisted of a geometry where the inner diameter was 19.1 mm and the outer diameter was 38.1 mm. The total height of the test section was 4.37 m. Experiments were conducted for nineteen inlet flow conditions. These flow conditions covered bubbly, cap-slug, and churn-turbulent flows. The local flow parameters, such as void fraction, interfacial area concentration, and bubble interface velocity, were measured at nine radial positions within the gap of the annulus at z/Dh = 230 of the test section. Radial distributions of these parameters were interpreted in terms of turbulent velocity profile, lift and wall forces. In addition, the local measurements were used to calculate distribution parameter, C0 in drift-flux model, and area averaged interfacial area concentration. Ishii’s (1977) model was modified and a new correlation of C0 was proposed based on the experimentally obtained C0 values. The area-averaged interfacial area concentration (IAC) values were compared with the most widely used models (Ishii and Mishima, 1980; Spore et al., 1983; Hibiki and Ishii, 2002). The advantages and drawbacks of these models were highlighted.
APA, Harvard, Vancouver, ISO, and other styles
5

dos Santos Bernardes, Marco Aure´lio. "Symmetric Sink Flow and Heat Transfer Between Two Parallel Disks." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47103.

Full text
Abstract:
The k-ε model are performed to investigate numerically the steady, turbulent, incompressible flow and heat transfer converging radially between two stationary disks, which is as a continuously developing flow problem under the internal boundary layer approximations. The effect of relaminarization was considered. This present study has presented a good agreement with the laminar investigation of Murphy et al [1], where no heat transfer was considered. At large values of the dimensionless radii (&gt;&gt; 1) the velocity profile becomes parabolic and invariant and the friction factor approaches the classic value obtained for fully developed flow between infinite plates, 24/Re0, where Re0 is an overall Reynolds number based on the volumetric flow rate and the disk spacing and is independent of radius. At radii less than one a typical external boundary layer evolves close to the wall with an approximately uniform core region, the boundary layer thickness decreases from one-half the disk spacing to values proportional to the local radii as the flow accelerates and the friction factor approaches the constant 2.17/Re0. A local Nusselt number, Nu = 230(r/R)0.650(1 − r/R)−0.386, where r is radial coordinate and R the radius of the disk, was estimated. A large overall Reynolds number was imposed and a relaminarization of the flow was observed. It was suggested that these results can be applicable for laminar and turbulent flow under Re0 = 106.
APA, Harvard, Vancouver, ISO, and other styles
6

Kikkawa, Takeo. "Ratio of Power Sources in Japan in 2030." In Nucléaire et renouvelables dans la transition énergétique. Les Ulis, France: EDP Sciences, 2013. http://dx.doi.org/10.1051/jtsfen/2013nuc05.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Raux, Jean François. "Transition Energétique 2030 : Points clés pour le système électrique." In Nucléaire et renouvelables dans la transition énergétique. Les Ulis, France: EDP Sciences, 2013. http://dx.doi.org/10.1051/jtsfen/2013nuc11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Orcel, Hugo. "MAR 200: Une maquette de simulation pour un démantèlement et une gestion des déchets optimisés." In Simulation et robotique dans le démantèlement. Les Ulis, France: EDP Sciences, 2015. http://dx.doi.org/10.1051/jtsfen/2015sim13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Bawazir, Salim, Zohrab Samani, Thomas Schmugge, Max Bleiweiss, Rhonda Skaggs, and Maritza Macias. "Estimating Riparian ET through Remote Sensing in the Middle Rio Grande." In World Environmental and Water Resources Congress 2006. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40856(200)296.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Blanchard, Samuel, Olivier Calixte, and Frédéric Briones. "Application : le démantèlement du dissolveur de MAR 200, usine UP1 Marcoule." In Innovation industrielle et R&D pour le démantèlement : quel futur ? Les Ulis, France: EDP Sciences, 2014. http://dx.doi.org/10.1051/jtsfen/2014inn09.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "ET 230"

1

Charest, Francine. Enjeux professionnels et organisationnels des Relations Publiques Web 2.0. Professional and organisational issues of Web 2.0 Public Relations. Revista Internacional de Relaciones Públicas, December 2012. http://dx.doi.org/10.5783/rirp-4-2012-02-31-50.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Detoeuf, D., M. Wieland, and D. Wilke. Guide 2.0 de l’Enquête sur les Nécessités de Base : Pourquoi et comment mener des enquêtes BNS digitales dans les paysages de conservation. Wildlife Conservarion Society, 2020. http://dx.doi.org/10.19121/2020.report.38388.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Roschelle, Jeremy, Britte Haugan Cheng, Nicola Hodkowski, Julie Neisler, and Lina Haldar. Evaluation of an Online Tutoring Program in Elementary Mathematics. Digital Promise, April 2020. http://dx.doi.org/10.51388/20.500.12265/94.

Full text
Abstract:
Many students struggle with mathematics in late elementary school, particularly on the topic of fractions. In a best evidence syntheses of research on increasing achievement in elementary school mathematics, Pelligrini et al. (2018) highlighted tutoring as a way to help students. Online tutoring is attractive because costs may be lower and logistics easier than with face-to-face tutoring. Cignition developed an approach that combines online 1:1 tutoring with a fractions game, called FogStone Isle. The game provides students with additional learning opportunities and provides tutors with information that they can use to plan tutoring sessions. A randomized controlled trial investigated the research question: Do students who participate in online tutoring and a related mathematical game learn more about fractions than students who only have access to the game? Participants were 144 students from four schools, all serving low-income students with low prior mathematics achievement. In the Treatment condition, students received 20-25 minute tutoring sessions twice per week for an average of 18 sessions and also played the FogStone Isle game. In the Control condition, students had access to the game, but did not play it often. Control students did not receive tutoring. Students were randomly assigned to condition after being matched on pre-test scores. The same diagnostic assessment was used as a pre-test and as a post-test. The planned analysis looked for differences in gain scores ( post-test minus pre-test scores) between conditions. We conducted a t-test on the aggregate gain scores, comparing conditions; the results were statistically significant (t = 4.0545, df = 132.66, p-value < .001). To determine an effect size, we treated each site as a study in a meta-analysis. Using gain scores, the effect size was g=+.66. A more sophisticated treatment of the pooled standard deviation resulted in a corrected effect size of g=.46 with a 95% confidence interval of [+.23,+.70]. Students who received online tutoring and played the related Fog Stone Isle game learned more; our research found the approach to be efficacious. The Pelligrini et al. (2018) meta-analysis of elementary math tutoring programs found g = .26 and was based largely on face-to-face tutoring studies. Thus, this study compares favorably to prior research on face-to-face mathematics tutoring with elementary students. Limitations are discussed; in particular, this is an initial study of an intervention under development. Effects could increase or decrease as development continues and the program scales. Although this study was planned long before the current pandemic, results are particularly timely now that many students are at home under shelter-in-place orders due to COVID-19. The approach taken here is feasible for students at home, with tutors supporting them from a distance. It is also feasible in many other situations where equity could be addressed directly by supporting students via online tutors.
APA, Harvard, Vancouver, ISO, and other styles
4

Evans, Julie, Kendra Sikes, and Jamie Ratchford. Vegetation classification at Lake Mead National Recreation Area, Mojave National Preserve, Castle Mountains National Monument, and Death Valley National Park: Final report (Revised with Cost Estimate). National Park Service, October 2020. http://dx.doi.org/10.36967/nrr-2279201.

Full text
Abstract:
Vegetation inventory and mapping is a process to document the composition, distribution and abundance of vegetation types across the landscape. The National Park Service’s (NPS) Inventory and Monitoring (I&M) program has determined vegetation inventory and mapping to be an important resource for parks; it is one of 12 baseline inventories of natural resources to be completed for all 270 national parks within the NPS I&M program. The Mojave Desert Network Inventory & Monitoring (MOJN I&M) began its process of vegetation inventory in 2009 for four park units as follows: Lake Mead National Recreation Area (LAKE), Mojave National Preserve (MOJA), Castle Mountains National Monument (CAMO), and Death Valley National Park (DEVA). Mapping is a multi-step and multi-year process involving skills and interactions of several parties, including NPS, with a field ecology team, a classification team, and a mapping team. This process allows for compiling existing vegetation data, collecting new data to fill in gaps, and analyzing the data to develop a classification that then informs the mapping. The final products of this process include a vegetation classification, ecological descriptions and field keys of the vegetation types, and geospatial vegetation maps based on the classification. In this report, we present the narrative and results of the sampling and classification effort. In three other associated reports (Evens et al. 2020a, 2020b, 2020c) are the ecological descriptions and field keys. The resulting products of the vegetation mapping efforts are, or will be, presented in separate reports: mapping at LAKE was completed in 2016, mapping at MOJA and CAMO will be completed in 2020, and mapping at DEVA will occur in 2021. The California Native Plant Society (CNPS) and NatureServe, the classification team, have completed the vegetation classification for these four park units, with field keys and descriptions of the vegetation types developed at the alliance level per the U.S. National Vegetation Classification (USNVC). We have compiled approximately 9,000 existing and new vegetation data records into digital databases in Microsoft Access. The resulting classification and descriptions include approximately 105 alliances and landform types, and over 240 associations. CNPS also has assisted the mapping teams during map reconnaissance visits, follow-up on interpreting vegetation patterns, and general support for the geospatial vegetation maps being produced. A variety of alliances and associations occur in the four park units. Per park, the classification represents approximately 50 alliances at LAKE, 65 at MOJA and CAMO, and 85 at DEVA. Several riparian alliances or associations that are somewhat rare (ranked globally as G3) include shrublands of Pluchea sericea, meadow associations with Distichlis spicata and Juncus cooperi, and woodland associations of Salix laevigata and Prosopis pubescens along playas, streams, and springs. Other rare to somewhat rare types (G2 to G3) include shrubland stands with Eriogonum heermannii, Buddleja utahensis, Mortonia utahensis, and Salvia funerea on rocky calcareous slopes that occur sporadically in LAKE to MOJA and DEVA. Types that are globally rare (G1) include the associations of Swallenia alexandrae on sand dunes and Hecastocleis shockleyi on rocky calcareous slopes in DEVA. Two USNVC vegetation groups hold the highest number of alliances: 1) Warm Semi-Desert Shrub & Herb Dry Wash & Colluvial Slope Group (G541) has nine alliances, and 2) Mojave Mid-Elevation Mixed Desert Scrub Group (G296) has thirteen alliances. These two groups contribute significantly to the diversity of vegetation along alluvial washes and mid-elevation transition zones.
APA, Harvard, Vancouver, ISO, and other styles
5

Holland, Darren, and Nazmina Mahmoudzadeh. Foodborne Disease Estimates for the United Kingdom in 2018. Food Standards Agency, January 2020. http://dx.doi.org/10.46756/sci.fsa.squ824.

Full text
Abstract:
In February 2020 the FSA published two reports which produced new estimates of foodborne norovirus cases. These were the ‘Norovirus Attribution Study’ (NoVAS study) (O’Brien et al., 2020) and the accompanying internal FSA technical review ‘Technical Report: Review of Quantitative Risk Assessment of foodborne norovirus transmission’ (NoVAS model review), (Food Standards Agency, 2020). The NoVAS study produced a Quantitative Microbiological Risk Assessment model (QMRA) to estimate foodborne norovirus. The NoVAS model review considered the impact of using alternative assumptions and other data sources on these estimates. From these two pieces of work, a revised estimate of foodborne norovirus was produced. The FSA has therefore updated its estimates of annual foodborne disease to include these new results and also to take account of more recent data related to other pathogens. The estimates produced include: •Estimates of GP presentations and hospital admissions for foodbornenorovirus based on the new estimates of cases. The NoVAS study onlyproduced estimates for cases. •Estimates of foodborne cases, GP presentations and hospital admissions for12 other pathogens •Estimates of unattributed cases of foodborne disease •Estimates of total foodborne disease from all pathogens Previous estimates An FSA funded research project ‘The second study of infectious intestinal disease in the community’, published in 2012 and referred to as the IID2 study (Tam et al., 2012), estimated that there were 17 million cases of infectious intestinal disease (IID) in 2009. These include illness caused by all sources, not just food. Of these 17 million cases, around 40% (around 7 million) could be attributed to 13 known pathogens. These pathogens included norovirus. The remaining 60% of cases (equivalent to 10 million cases) were unattributed cases. These are cases where the causal pathogen is unknown. Reasons for this include the causal pathogen was not tested for, the test was not sensitive enough to detect the causal pathogen or the pathogen is unknown to science. A second project ‘Costed extension to the second study of infectious intestinal disease in the community’, published in 2014 and known as IID2 extension (Tam, Larose and O’Brien, 2014), estimated that there were 566,000 cases of foodborne disease per year caused by the same 13 known pathogens. Although a proportion of the unattributed cases would also be due to food, no estimate was provided for this in the IID2 extension. New estimates We estimate that there were 2.4 million cases of foodborne disease in the UK in 2018 (95% credible intervals 1.8 million to 3.1 million), with 222,000 GP presentations (95% Cred. Int. 150,000 to 322,000) and 16,400 hospital admissions (95% Cred. Int. 11,200 to 26,000). Of the estimated 2.4 million cases, 0.9 million (95% Cred. Int. 0.7 million to 1.2 million) were from the 13 known pathogens included in the IID2 extension and 1.4 million1 (95% Cred. Int. 1.0 million to 2.0 million) for unattributed cases. Norovirus was the pathogen with the largest estimate with 383,000 cases a year. However, this estimate is within the 95% credible interval for Campylobacter of 127,000 to 571,000. The pathogen with the next highest number of cases was Clostridium perfringens with 85,000 (95% Cred. Int. 32,000 to 225,000). While the methodology used in the NoVAS study does not lend itself to producing credible intervals for cases of norovirus, this does not mean that there is no uncertainty in these estimates. There were a number of parameters used in the NoVAS study which, while based on the best science currently available, were acknowledged to have uncertain values. Sensitivity analysis undertaken as part of the study showed that changes to the values of these parameters could make big differences to the overall estimates. Campylobacter was estimated to have the most GP presentations with 43,000 (95% Cred. Int. 19,000 to 76,000) followed by norovirus with 17,000 (95% Cred. Int. 11,000 to 26,000) and Clostridium perfringens with 13,000 (95% Cred. Int. 6,000 to 29,000). For hospital admissions Campylobacter was estimated to have 3,500 (95% Cred. Int. 1,400 to 7,600), followed by norovirus 2,200 (95% Cred. Int. 1,500 to 3,100) and Salmonella with 2,100 admissions (95% Cred. Int. 400 to 9,900). As many of these credible intervals overlap, any ranking needs to be undertaken with caution. While the estimates provided in this report are for 2018 the methodology described can be applied to future years.
APA, Harvard, Vancouver, ISO, and other styles
6

Cooper, Christopher, Jacob McDonald, and Eric Starkey. Wadeable stream habitat monitoring at Congaree National Park: 2018 baseline report. National Park Service, June 2021. http://dx.doi.org/10.36967/nrr-2286621.

Full text
Abstract:
The Southeast Coast Network (SECN) Wadeable Stream Habitat Monitoring Protocol collects data to give park resource managers insight into the status of and trends in stream and near-channel habitat conditions (McDonald et al. 2018a). Wadeable stream monitoring is currently implemented at the five SECN inland parks with wadeable streams. These parks include Horseshoe Bend National Military Park (HOBE), Kennesaw Mountain National Battlefield Park (KEMO), Ocmulgee Mounds National Historical Park (OCMU), Chattahoochee River National Recreation Area (CHAT), and Congaree National Park (CONG). Streams at Congaree National Park chosen for monitoring were specifically targeted for management interest (e.g., upstream development and land use change, visitor use of streams as canoe trails, and potential social walking trail erosion) or to provide a context for similar-sized stream(s) within the park or network (McDonald and Starkey 2018a). The objectives of the SECN wadeable stream habitat monitoring protocol are to: Determine status of upstream watershed characteristics (basin morphology) and trends in land cover that may affect stream habitat, Determine the status of and trends in benthic and near-channel habitat in selected wadeable stream reaches (e.g., bed sediment, geomorphic channel units, and large woody debris), Determine the status of and trends in cross-sectional morphology, longitudinal gradient, and sinuosity of selected wadeable stream reaches. Between June 11 and 14, 2018, data were collected at Congaree National Park to characterize the in-stream and near-channel habitat within stream reaches on Cedar Creek (CONG001, CONG002, and CONG003) and McKenzie Creek (CONG004). These data, along with the analysis of remotely sensed geographic information system (GIS) data, are presented in this report to describe and compare the watershed-, reach-, and transect-scale characteristics of these four stream reaches to each other and to selected similar-sized stream reaches at Ocmulgee Mounds National Historical Park, Kennesaw Mountain National Battlefield Park, and Chattahoochee National Recreation Area. Surveyed stream reaches at Congaree NP were compared to those previously surveyed in other parks in order to provide regional context and aid in interpretation of results. edar Creek’s watershed (CONG001, CONG002, and CONG003) drains nearly 200 square kilometers (77.22 square miles [mi2]) of the Congaree River Valley Terrace complex and upper Coastal Plain to the north of the park (Shelley 2007a, 2007b). Cedar Creek’s watershed has low slope and is covered mainly by forests and grasslands. Cedar Creek is designated an “Outstanding Resource Water” by the state of South Carolina (S.C. Code Regs. 61–68 [2014] and S.C. Code Regs. 61–69 [2012]) from the boundary of the park downstream to Wise Lake. Cedar Creek ‘upstream’ (CONG001) is located just downstream (south) of the park’s Bannister Bridge canoe landing, which is located off Old Bluff Road and south of the confluence with Meyers Creek. Cedar Creek ‘middle’ and Cedar Creek ‘downstream’ (CONG002 and CONG003, respectively) are located downstream of Cedar Creek ‘upstream’ where Cedar Creek flows into the relatively flat backswamp of the Congaree River flood plain. Based on the geomorphic and land cover characteristics of the watershed, monitored reaches on Cedar Creek are likely to flood often and drain slowly. Flooding is more likely at Cedar Creek ‘middle’ and Cedar Creek ‘downstream’ than at Cedar Creek ‘upstream.’ This is due to the higher (relative to CONG001) connectivity between the channels of the lower reaches and their out-of-channel areas. Based on bed sediment characteristics, the heterogeneity of geomorphic channel units (GCUs) within each reach, and the abundance of large woody debris (LWD), in-stream habitat within each of the surveyed reaches on Cedar Creek (CONG001–003) was classified as ‘fair to good.’ Although, there is extensive evidence of animal activity...
APA, Harvard, Vancouver, ISO, and other styles
7

McPhedran, R., K. Patel, B. Toombs, P. Menon, M. Patel, J. Disson, K. Porter, A. John, and A. Rayner. Food allergen communication in businesses feasibility trial. Food Standards Agency, March 2021. http://dx.doi.org/10.46756/sci.fsa.tpf160.

Full text
Abstract:
Background: Clear allergen communication in food business operators (FBOs) has been shown to have a positive impact on customers’ perceptions of businesses (Barnett et al., 2013). However, the precise size and nature of this effect is not known: there is a paucity of quantitative evidence in this area, particularly in the form of randomised controlled trials (RCTs). The Food Standards Agency (FSA), in collaboration with Kantar’s Behavioural Practice, conducted a feasibility trial to investigate whether a randomised cluster trial – involving the proactive communication of allergen information at the point of sale in FBOs – is feasible in the United Kingdom (UK). Objectives: The trial sought to establish: ease of recruitments of businesses into trials; customer response rates for in-store outcome surveys; fidelity of intervention delivery by FBO staff; sensitivity of outcome survey measures to change; and appropriateness of the chosen analytical approach. Method: Following a recruitment phase – in which one of fourteen multinational FBOs was successfully recruited – the execution of the feasibility trial involved a quasi-randomised matched-pairs clustered experiment. Each of the FBO’s ten participating branches underwent pair-wise matching, with similarity of branches judged according to four criteria: Food Hygiene Rating Scheme (FHRS) score, average weekly footfall, number of staff and customer satisfaction rating. The allocation ratio for this trial was 1:1: one branch in each pair was assigned to the treatment group by a representative from the FBO, while the other continued to operate in accordance with their standard operating procedure. As a business-based feasibility trial, customers at participating branches throughout the fieldwork period were automatically enrolled in the trial. The trial was single-blind: customers at treatment branches were not aware that they were receiving an intervention. All customers who visited participating branches throughout the fieldwork period were asked to complete a short in-store survey on a tablet affixed in branches. This survey contained four outcome measures which operationalised customers’: perceptions of food safety in the FBO; trust in the FBO; self-reported confidence to ask for allergen information in future visits; and overall satisfaction with their visit. Results: Fieldwork was conducted from the 3 – 20 March 2020, with cessation occurring prematurely due to the closure of outlets following the proliferation of COVID-19. n=177 participants took part in the trial across the ten branches; however, response rates (which ranged between 0.1 - 0.8%) were likely also adversely affected by COVID-19. Intervention fidelity was an issue in this study: while compliance with delivery of the intervention was relatively high in treatment branches (78.9%), erroneous delivery in control branches was also common (46.2%). Survey data were analysed using random-intercept multilevel linear regression models (due to the nesting of customers within branches). Despite the trial’s modest sample size, there was some evidence to suggest that the intervention had a positive effect for those suffering from allergies/intolerances for the ‘trust’ (β = 1.288, p<0.01) and ‘satisfaction’ (β = 0.945, p<0.01) outcome variables. Due to singularity within the fitted linear models, hierarchical Bayes models were used to corroborate the size of these interactions. Conclusions: The results of this trial suggest that a fully powered clustered RCT would likely be feasible in the UK. In this case, the primary challenge in the execution of the trial was the recruitment of FBOs: despite high levels of initial interest from four chains, only one took part. However, it is likely that the proliferation of COVID-19 adversely impacted chain participation – two other FBOs withdrew during branch eligibility assessment and selection, citing COVID-19 as a barrier. COVID-19 also likely lowered the on-site survey response rate: a significant negative Pearson correlation was observed between daily survey completions and COVID-19 cases in the UK, highlighting a likely relationship between the two. Limitations: The trial was quasi-random: selection of branches, pair matching and allocation to treatment/control groups were not systematically conducted. These processes were undertaken by a representative from the FBO’s Safety and Quality Assurance team (with oversight from Kantar representatives on pair matching), as a result of the chain’s internal operational restrictions.
APA, Harvard, Vancouver, ISO, and other styles
8

Palynological biostratigraphy of the Interval 2320-4570M, Northcor et al., Narwhal F-99, Grand Banks. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1987. http://dx.doi.org/10.4095/130558.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography