Results 241 to 250 of about 242,399 (299)
Some of the next articles are maybe not open access.
Applied Optics, 1969
Lo studio del risonatore "flat-roof", tetto piatto, da noi estesamente sviluppato in precedenza è esteso al caso di "tetto" convesso, di interesse per le applicazioni. Con la procedura numerica iterativa ed usando anche un metodo perturbativo si sono valutati modi, phase shift e perdite, in un numero di casi.
P. F. Checcacci +2 more
openaire +3 more sources
Lo studio del risonatore "flat-roof", tetto piatto, da noi estesamente sviluppato in precedenza è esteso al caso di "tetto" convesso, di interesse per le applicazioni. Con la procedura numerica iterativa ed usando anche un metodo perturbativo si sono valutati modi, phase shift e perdite, in un numero di casi.
P. F. Checcacci +2 more
openaire +3 more sources
Structural Survey, 1988
This paper is predominantly concerned with flat roofs of timber construction with which the author is most familiar. The principles discussed are, however, generally applicable to roofs constructed of other materials.
openaire +1 more source
This paper is predominantly concerned with flat roofs of timber construction with which the author is most familiar. The principles discussed are, however, generally applicable to roofs constructed of other materials.
openaire +1 more source
Structural Engineering International, 2000
If a flat roof is relatively easily deformed, excessive accumulation of water on the roof can give rise to the ponding effect, whereby autoexcitation of the deformation occurs, possibly leading to collapse. This article examines the conditions under which the ordinary limits for deflections of roofs under variable loads are sufficient to withstand the ...
openaire +2 more sources
If a flat roof is relatively easily deformed, excessive accumulation of water on the roof can give rise to the ponding effect, whereby autoexcitation of the deformation occurs, possibly leading to collapse. This article examines the conditions under which the ordinary limits for deflections of roofs under variable loads are sufficient to withstand the ...
openaire +2 more sources
Applied Optics, 1965
A microwave or laser resonator with flat-roof mirrors is discussed from a theoretical point of view. When the angle of the roof is extremely small, on the order of 10−3 rad for microwaves or 10−3–10−6 rad for optics, this resonator has some features in common with the confocal resonator.
openaire +1 more source
A microwave or laser resonator with flat-roof mirrors is discussed from a theoretical point of view. When the angle of the roof is extremely small, on the order of 10−3 rad for microwaves or 10−3–10−6 rad for optics, this resonator has some features in common with the confocal resonator.
openaire +1 more source
1999
Both flat and pitched roofs can conveniently be subdivided into two main sections for purposes of measurement, that is, construction and coverings. The order of measurement of these two sections varies in practice, but on balance it is probably better to take the construction first since this follows the order of erection on the site.
Ivor H. Seeley, Roger Winfield
openaire +1 more source
Both flat and pitched roofs can conveniently be subdivided into two main sections for purposes of measurement, that is, construction and coverings. The order of measurement of these two sections varies in practice, but on balance it is probably better to take the construction first since this follows the order of erection on the site.
Ivor H. Seeley, Roger Winfield
openaire +1 more source
LCA comparison of roofing materials for flat roofs
Smart and Sustainable Built Environment, 2015Purpose– The environmental performance of several flat roof systems with different materials and insulation thicknesses is compared using life cycle assessment (LCA), with the aim to determine the roofing materials with the highest environmental performance.
Antonio Contarini, Arjen Meijer
openaire +1 more source
Structural Survey, 1996
Points out that many problems have arisen in the flat roofing industry as a result of the inadequacy of the earlier specification. In addition the suggested remedies bring many other difficulties in their wake. Aims to identify the pitfalls and suggest some solutions.
openaire +1 more source
Points out that many problems have arisen in the flat roofing industry as a result of the inadequacy of the earlier specification. In addition the suggested remedies bring many other difficulties in their wake. Aims to identify the pitfalls and suggest some solutions.
openaire +1 more source
1994
A flat roof duct designed as a vent (L) or the like has a tubular lower part (2) with a supporting plate (6) associated to a countersupporting plate (12). For particular ease of utilisation, the tubular upper part (1) has a thread (8) below the countersupporting plate (12) carried by the tubular upper part (1) in order to join the latter to a central ...
openaire +1 more source
A flat roof duct designed as a vent (L) or the like has a tubular lower part (2) with a supporting plate (6) associated to a countersupporting plate (12). For particular ease of utilisation, the tubular upper part (1) has a thread (8) below the countersupporting plate (12) carried by the tubular upper part (1) in order to join the latter to a central ...
openaire +1 more source