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General Information About Electrical Heating Elements
Published in Thor Hesborn, Integrating Electrical Heating Elements in Appliance Design, 2017
Sag is deformation of suspended coils as a result of the coil weight. A distinction should be made between sag of horizontal and sag of vertical coils and between sag in the cold and in the hot condition. Sag in the cold state takes place immediately, whereas sag of hot coils can be split up in two parts: one part as soon as the wire becomes hot as a result of the reduced mechanical strength in hot state, and the second part following gradually over a long time as a result of creep.
Overhead Mechanical Design and Construction
Published in Anthony J. Pansini, Power Transmission and Distribution, 2020
For practical purposes, in sagging the conductor in the field, it may be convenient to determine the sag as the vertical deflection from a line through the points of support. The sag may be computed as if the supports were at the same elevation and S the span length and measured as the vertical distance d2 from the line through the points of support.
Sedimentary characteristics and controlling factors of a Pliocene shelf-edge delta in the Papuan Basin
Published in Australian Journal of Earth Sciences, 2023
Y. Zhu, J. Liu, H. Wang, G. Hong, H. Dong, Z. Chen
The Papuan Basin, which is in the southern and central portions of the island of New Guinea and the northern edge of Australia, has been susceptible to high-speed oblique convergence between the Australian and Pacific plates (Hill & Hall, 2003; Li et al., 2014; Luo et al., 2012), resulting in a Mesozoic–Cenozoic foreland-superimposed basin with north–south zoning. The basin comprises nine secondary structural units, which are distributed from north to south as follows: Papua Active Belt, Papuan Fold Belt, Fly Platform, Aure Active Structural Belt, Moresby Depression, Owen Stanley Complex Structural Belt, Milne Ophiolite Belt, Papuan Highland and Eastern Highland (Figure 1) (Cloos et al., 2005; Hill & Hall, 2003; Liu, 2014; Pigram & Davies, 1987). The study area is located in the middle west of the Papuan Basin. The Fly Platform in the study area can be further divided into three tertiary structural units: Darai Platform, Omati Trough and Aure Sag (Figure 1).
The tectonic history of Adelaide’s scarp-forming faults
Published in Australian Journal of Earth Sciences, 2019
The geology of the Adelaide–Mount Lofty Ranges region, summarised in Drexel et al. (1993) and Drexel and Preiss (1995), comprises four major strato-tectonic units:Metasedimentary and intrusive rocks of the Barossa Complex are the oldest rocks exposed in the region.The Adelaidean (Neoproterozoic) to lower Cambrian complex of rift and sag basins is known collectively as the Adelaide Geosyncline, including the lower Cambrian Kanmantoo Trough. Sediments were deformed and metamorphosed to varying degrees in the mid- to late Cambrian Delamerian Orogeny.The Carboniferous–Permian glacigene Cape Jervis Formation of the Troubridge Basin occupies deeply scoured glacial valleys on Fleurieu Peninsula and Kangaroo Island and under Backstairs Passage.The Cenozoic St Vincent and Murray basins evolved from terrestrial to marine deposits from the middle Eocene to the Miocene, followed by marine to terrestrial conditions in the late Cenozoic.
Mapping a coastal transition in braided systems: an example from the Precipice Sandstone, Surat Basin
Published in Australian Journal of Earth Sciences, 2018
V. Bianchi, F. Zhou, D. Pistellato, M. Martin, S. Boccardo, J. Esterle
Interpretation of the tectonic setting of the Surat Basin has evolved. Initial interpretations suggest an intracratonic sag basin, overlying the foreland axis of the Taroom Trough, with constant subsidence and no syn-tectonic deformation (Exon, 1976; Fielding, Gray, Harris, & Salomon, 1990; Veevers, 1986). Later interpretations suggest that far-field subduction was actively creating a dynamic topography with pulses of subsidence or uplift expressed by internal basin wide unconformities (Bianchi, Smith, Salles, & Esterle, 2016b; Flament, Gurnis, & Müller, 2013; Matthews, Hale, Gurnis, Müller, & Dicaprio, 2011). Studies by Korsch and Totterdell (2009) and others (Hamilton, Esterle, & Sliwa, 2014; Raza, Hill, & Korsch, 2009; Waschbusch, Korsch, & Beaumont, 2009) support this interpretation that invokes the far-field effect of subduction-related dynamic tilting. The Jurassic-to-Cretaceous fill is not considered substantially deformed, but Cenozoic tectonics has subtly tilted the basin, approximately 2–5° towards the south (Exon, 1976).