Flow regime prediction via froude number calculation in a rock-bedded stream

Mathematical predictions of flow conditions along a steep gradient rock bedded stream are examined. Stream gage discharge data and Manning's Equation are used to calculate alternative velocities, and subsequently Froude Numbers, assuming varying values of velocity coefficient, full depth or depth adjusted for vertical flow separation. Comparison of the results with photos show that Froude Numbers calculated from velocities derived from Manning's Equation, assuming a velocity coefficient of 1.30 and full depth, most accurately predict flow conditions, when supercritical flow is defined as Froude Number values above 0.84. Calculated Froude Number values between 0.8 and 1.1 correlate well with observed transitional flow, defined as the first appearance of small diagonal waves. Transitions from subcritical through transitional to clearly supercritical flow are predictable. Froude Number contour maps reveal a sinuous rise and fall of values reminiscent of pool riffle energy distribution.

Integrating vitrinite reflectance, rock-eval pyrolysis, flourescence microscopy and palynology of the Athabasca oil sands, Kearl Lake area, northeastern Alberta

Three cores from the Kearl Lake Oil Sands area within the Athabasca deposit of northeastern Alberta have been analyzed to understand the thermal history of the McMurray and Clearwater formations of the Lower Cretaceous Mannville Group. The approach involves the integration of vitrinite reflectance (VR), Rock-Eval pyrolysis, fluorescence microscopy, and palynology. Mean VR varies between 0.21 and 0.43% Ro and indicates thermally immature levels equivalent to the rank of lignite to sub-bituminous coal. Although differing lithologies have influenced VR to some extent (i.e., coals and bitumen-rich zones), groundwater influence and oxidation seem not to have measurably altered YR. Rock-Eval analysis points to Type III/IV kerogen, and samples rich in amorphous organic matter (ADM) show little to no fluorescence characteristics, implying a terrestrial source of origin. Palynology reveals the presence of some delicate macerals but lack of fluorescence and abundant ADM suggests some degradation and partial oxidation of the samples.

Photograph - Baie Comeau, Blasting Rock

A photograph of the construction at Baie Comeau, with the caption "'Sinking' dynamite for blast in rock immediately behind temporary staff house."

Photograph - Group Photo on Rock Steps

A photograph of a large group/family photo on the rock steps of an outdoors location. There are nine individuals and one dog in the photograph.

Rock of Ages, Niagara, U.S.A.

The description reads "(11) American Falls and "Rock of Ages" - Niagara, U.S.A."

Investigating Microbial Trace-fossils and Abiotic Alteration in Hydrovolcanic Tuffs of the Fort Rock Volcanic Field, Oregon

Microbial ichnofossils in volcanic rocks provide a significant record of subsurface microbes and potentially extraterrestrial biosignatures. Here, the textures, mineralogy, and geochemistry of two continental basaltic hydrovolcanic deposits - Reed Rocks and Black Hills - in the Fort Rock Volcanic Field (FRVF) are investigated. Methods include petrographic microscopy, micro and powder X-ray diffraction, SEM/BSE/EDF imaging, energy dispersive spectroscopy, stable isotopes, and X-ray fluorescence. Petrographic analysis revealed granular and tubular textures with biogenic morphologies that include terminal enlargements, septate divisions, branching forms, spiral filaments, and ovoid bodies resembling endolithic microborings described in ocean basalts. They display evidence of behaviour and a geologic context expressing their relative age and syngenicity. Differences in abiotic alteration and the abundance/morphotype assemblage of putative microborings between the sites indicate that water/rock ratio, fluid composition and flux, temperature and secondary phase formation are influences on microboring formation. This study is the first report of reputed endolithic microborings in basalts erupted in a continental lacustrine setting.

Indenture of deed of bargain and sale between Samuel Rock of Crowland Township and Samuel Street of the Town of Niagara

Indenture of deed of bargain and sale between Samuel Rock of Crowland Township and Samuel Street of the Town of Niagara for 1 acre in Lot no. 179 in the Town of Niagara – instrument no. 13070. A memorial of this record was made on Feb. 21, 1856, List B, Folio 169. An envelope addressed to Joseph Woodruff, Clerk of the Peace and postmarked Jan. 1857 was included with this document, July 17, 1840.

El rock mexicano como discurso intertextual. Un estudio aplicado a canciones de El Tri, Café Tacuba, La Maldita Vecindad y El Gran Silencio.

Tesis (Maestría en Ciencias con Especialidad en Lengua y Literatura) UANL, 2011.

Arcturus : ópera rock

UANL

La chanson rock pour parler de Dieu, pour parler à Dieu

Commentaires de chansons de Gatineau, Vulgaires Machins, U2, Titus Andronicus, Joseph Arthur, Bruce Springsteen, Matiyashu, Nick Cave, Leonard Cohen.

La Bible coulée dans le rock. Fragmentation et reconstruction du texte biblique dans la musique rock

Dans ses entretiens, George Steiner considère la musique rock et le heavy metal comme l’espéranto international des jeunes de notre époque (Steiner, Entretiens, p. 91). Or, cet espéranto porte une dimension religieuse manifeste, entre autres à travers l’usage fréquent d’images et de textes bibliques souvent passés au broyeur des guitares et des voix vociférantes. On peut se demander quelles figures construisent les fragments qui en résultent, souvent irrévérencieux voire scandaleux pour plusieurs. À travers les violences que le rock et surtout le métal infligent au texte biblique, faut-il voir des attaques contre la Bible et contre Dieu, comme le croient plusieurs chrétiens, ou, au contraire, un respect profond de la dynamique de ce texte et un usage légitime de celui-ci ? Davantage portée par la seconde hypothèse, ce texte vise à identifier les usages et les fonctions religieuses de la Bible dans la musique rock.

Brooklyn, capitale du rock indépendant : médiations, réseaux et le train « L »

Brooklyn est depuis quelques années un épicentre de la musique indépendante aux États-Unis. En utilisant la démarche ethnographique, l’auteur s’intéresse au rôle des médiateurs dans la définition du réseau socio-musical de la scène « indie » de Brooklyn à New York. Il met en relief la façon dont historiquement, le quartier brooklynois de Williamsburg est devenu un lieu important d’établissement des Brooklyn est depuis quelques années un épicentre de la musique indépendante aux États-Unis. En utilisant la démarche ethnographique, l’auteur s’intéresse au rôle des médiateurs dans la définition du réseau socio-musical de la scène « indie » de Brooklyn à New York. Il met en relief la façon dont historiquement, le quartier brooklynois de Williamsburg est devenu un lieu important d’établissement des musiciens alternatifs. Il aborde la façon dont les hipsters, comme communauté, font appel à différentes pratiques pour contourner le rapport d’infériorité avec les étiquettes majors. Il s’intéresse aussi au « do it yourself » ainsi qu’au rôle de New York dans le milieu musical mondial. Finalement, il s’intéresse aux médias qui définissent et structurent le milieu de la musique indépendante de Brooklyn.

L'assimilation rock de la musique romantique par le groupe Muse

La version intégrale de ce mémoire est disponible uniquement pour consultation individuelle à la Bibliothèque de musique de l’Université de Montréal (www.bib.umontreal.ca/MU).

Investigations on Phaeocystis sp., A Harmful Bloom- Forming Alga Isolated from Cochin Estuary

Considering the importance of diversity of micro algae in our ecosystem and new invasion of many organisms, an attempt was made to monitor the Cochin estuary along the south west coast of India for the qualitative distribution of phytoplankton and to study the growth kinetics and allelopathic effect of the phaeocystis sp. Isolated from the cochin estuary. Phaeocystis blooms are common only in high latitude environments and they rarely occur in low latitude environments such as tropics and subtropics. As phaeocystis is grouped under harmful alga ,in the present study the factors causing the blooms formation in the ecosystem. The nutrient concentration of the water body along with other physiochemical parameters that includes temperature salinity and ph play an important role in triggering the bloom of phaeocystis .The phaeocystis harbor specific bacterial flora associated with it and they exert an important role in the growth ,haemolytic activity and the bloom phases of the alga. The harmful alga mainly depends on the production of alleopathic compounds for the establishment of bloom in the marine environments .These physiological properties of the phaecystis were considered for the study, along with the role of nutrients in the allelopathic and hemolytic activity

Biofilm Forming Multi Drug Resistant Staphylococcus spp. Among Patients with Conjunctivitis

Biofilm forming multidrug resistant Staphylococcus spp. are major reservoirs for transmission of ophthalmic infections. They were isolated from ocular patients suffering from conjunctivitis. In this study we analyzed biofilm forming ability, antibiotic resistance profile of the Staphylococcus spp. isolated from clinical ocular patients, and their phylogenetic relationship with other community MRSA. Sixty Staphylococcus spp. strains isolated from clinical subjects were evaluated for their ability to form biofilm and express biofilm encoding ica gene. Among them 93% were slime producers and 87% were slime positive. Staphylococcus aureus and S. epidermidis were dominant strains among the isolates obtained from ocular patients. The strains also exhibited a differential biofilm formation quantitatively. Antibiotic susceptibility of the strains tested with Penicillin G, Ciprofloxacin, Ofloxacin, Methicillin, Amikacin, and Gentamicin indicated that they were resistant to more than one antibiotic. The amplicon of ica gene of strong biofilm producing S. aureus strains, obtained by polymerase chain reaction, was sequenced and their close genetic relationship with community acquired MRSA was analyzed based on phylogenetic tree. Our results indicate that they are genetically close to other community acquired MRSA