Le site du mont Gözlükule à Tarse (en Cilicie) a livré depuis le milieu du xixe siècle plus de 2000 figurines en contextes d’habitat, de tombes et d’ateliers artisanaux. L’étude des figurines ...conservées au Louvre et dans la maison de fouilles de Tarse a permis d’observer des spécificités techniques propres à ces ateliers de production coroplathique (usage de moules en plâtre, ajouts d’éléments en plâtre sur des exemplaires en argile, revers lisses, riche polychromie débordante…). Ces particularités observées à l’œil nu nécessitaient d’être enrichies par des analyses archéométriques, techniques et de polychromie réalisées par le Centre de recherches et de restauration des musées de France sur une vingtaine de figurines du Louvre.
Scale effects and hydraulic head losses are systematically investigated for fish guidance structures, i.e. louvres and angled bar racks. The experiments were conducted at 1:1 and 1:2 Froude-scaled ...models in a laboratory flume for a wide range of rack configurations under various hydraulic conditions. The study involves three main rack angles, three bar angles, and three bar openings as primary parameters characterizing the structure investigated, and two bar shapes, three bar depths and three relative rack submergences as secondary parameters. This study demonstrates that the above parameters are strongly interrelated with respect to the head loss, and the bar opening has a determinative effect on the flow-rack interactions. The analysis of functional relations among the parameters has led to a new head loss prediction formula. The implications of the findings for optimum engineering solutions in terms of head loss, fish guidance and project economy are also addressed.
La plupart des publications traitant des techniques de transposition (de levage) se cantonnaient jusqu’ici à quelques critiques techniques mentionnant les noms de Robert Picault, la veuve Godefroid, ...Jean-Louis Hacquin, François-Toussaint Hacquin et quelques autres. Aujourd’hui, la publication de Frankline Barrès comble une lacune. L’approche plurielle de cet ouvrage permet d’appréhender bien plus que des procédés techniques. En effet, la diversité des sources et le croisement de celles-ci, o...
•Reflective louvres potentially reduce the need for artificial lighting by improving daylight distribution in the building.•The tested system reduced the need for artificial lighting by 60%.•The ...tested device works optimally under sunny conditions and considerably improve daylight distribution under overcast sky conditions.•Occupants’ behaviours can greatly affect the available daylight and use of artificial lighting in the building.•Reflective louvres can delay the air temperature rise by blocking/reflecting the sunlight reducing the cooling loads.
Traditional windows, as the major source of daylight, have a common problem which is uneven distribution of daylight in the room. Several innovative daylighting systems such as light shelves, fixed and movable reflective louvres, reflective sills, prismatic glazing, light pipes, etc., have been developed to address this problem. This paper reports on a research programme that investigates retrofitted solutions to uneven distribution of daylight in deep-plan office buildings. The work presented here follows initial investigations into the design and applicability of an automated retrofitted panel thermal shutters which can also act as a sunshade and daylighting system. The system has a patented function which allows each shutter/louvre to be controlled and placed separately from other louvres. This study evaluates the effectiveness of the system when acting as a sunshade, light shelf, reflective louvre, and reflective sill under clear, overcast, and sunny sky conditions. According to the results, the system significantly improved daylight distribution and reduced the need for artificial lighting by 60%.
Da Correggio a Pordenone Furlan, Caterina
Venezia arti,
12/2019, Letnik:
28, Številka:
1
Journal Article
Recenzirano
Odprti dostop
This brief note discusses a drawing in the collections of the Louvre, showing a “puer mingens”. In the past this work has been associated with Correggio; here it is instead attributed to Pordenone on ...the basis of stylistic features in other drawings by the same artist as well as in those of Correggio.
On the site of Mount Gözlükule in Tarsus (Cilicia) were discovered since the middle of the 19th century more than 2000 figurines in contexts of houses, tombs and workshops. The study of the figurines ...preserved in the Louvre and in Tarsus excavation’s house allowed to observe technical specificities on the figurines manufactured in these workshops (use of plaster moulds, addition of plaster elements on clay figurines, flat reverse, rich overflowing polychromy…). These specificities observed with the eyes only, needed to be enriched by archaeometric, technical and polychromy analyzes carried out by the Centre de recherches et de restauration des musées de France on twenty figurines of the Louvre.
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