Narodna in univerzitetna knjižnica, Ljubljana (NUK)
-
A new high resolution optical method for obtaining the topography of fracture surfaces in rocksOgilvie, Steven ...Surface roughness plays a major role in the movement of fluids through fracture systems. Fracture surface profiling is necessary to tune the properties of numerical fractures required in fluid flow ... modelling to those ofreal rock fractures. This is achieved using a variety of (i) mechanical and (ii) optical techniques. Stylus profilometry is a popularly used mechanical method and can measure surface heights with high precision, but only gives a good horizontal resolution in one direction on the fracture plane. This methodis also expensive and simultaneous coverage of the surface is not possible. Here, we describe the development of an optical method which images cast copies of rough rock fractures using in-house developed hardware and image analysis software (OptiProfrM) that incorporates image improvement and noise suppression features. This technique images at high resolutions, 15-200 micro m for imaged areas of 10 x 7.5 mm and 100 x 133 mm, respectively and a similar vertical resolution (15 pm) for a maximum topography of 4 mm. It uses in-house developed hardware and image analysis (OptiProfrM) software and is cheap and non-destructive, providing continuous coverage of the fracture surface. The fracture models are covered with dye and fluid thicknesses above the rough surfaces converted into topographies using the Lambert-Beer Law. Thedye is calibrated using 2 devices with accurately known thickness; (i) a potycarbonate tile with wells of different depths and (ii) a wedge-shaped vialmade from silica glass. The data from each of the two surfaces can be combined to provide an aperture map of the fracture for the scenario where thesurfaces touch at a single point or any greater mean aperture. The topography and aperture maps are used to provide data for the generation of synthetic fractures, tuned to the original fracture and used in numerical flowmodelling.Vir: Image analysis & stereology : official journal of the International Society for Stereology. - ISSN 1580-3139 (Vol. 21, no. 1, mar. 2002, str. 61-66)Vrsta gradiva - članek, sestavni delLeto - 2002Jezik - angleškiCOBISS.SI-ID - 16041689
Avtor
Ogilvie, Steven |
Isakov, Evgeny |
Taylor, Colin |
Glover, Paul
Teme
površine |
preiskava materiala |
hrapavost |
optične metode
![loading ... loading ...](themes/default/img/ajax-loading.gif)
vir: Image analysis & stereology : official journal of the International Society for Stereology. - ISSN 1580-3139 (Vol. 21, no. 1, mar. 2002, str. 61-66)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Vnos na polico
Trajna povezava
- URL:
Faktor vpliva
Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
---|
Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
---|---|
Ogilvie, Steven | ![]() |
Isakov, Evgeny | ![]() |
Taylor, Colin | ![]() |
Glover, Paul | ![]() |
Vir: Osebne bibliografije
in: SICRIS
Izberite prevzemno mesto:
Prevzem gradiva po pošti
Naslov za dostavo:
Med podatki člana manjka naslov.
Storitev za pridobivanje naslova trenutno ni dostopna, prosimo, poskusite še enkrat.
S klikom na gumb "V redu" boste potrdili zgoraj izbrano prevzemno mesto in dokončali postopek rezervacije.
S klikom na gumb "V redu" boste potrdili zgoraj izbrano prevzemno mesto in naslov za dostavo ter dokončali postopek rezervacije.
S klikom na gumb "V redu" boste potrdili zgoraj izbrani naslov za dostavo in dokončali postopek rezervacije.
Obvestilo
Trenutno je storitev za avtomatsko prijavo in rezervacijo nedostopna. Gradivo lahko rezervirate sami na portalu Biblos ali ponovno poskusite tukaj kasneje.
Gesla v Splošnem geslovniku COBISS
Izbira mesta prevzema
Gradivo iz matične enote je brezplačno. Če je gradivo na mesto prevzema dostavljeno iz drugih enot, lahko knjižnica to storitev zaračuna.
Mesto prevzema | Status gradiva | Rezervacija |
---|
Rezervacija v teku
Prosimo, počakajte trenutek.
Rezervacija je uspela.
Rezervacija ni uspela.
Rezervacija...
Članska izkaznica:
Mesto prevzema:
Naročanje gradiva za izposojo v čitalnice
Naročanje kopij člankov
Urnik dostave gradiva z oznako DS v signaturi