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apps Other research productkeyboard_double_arrow_right Other ORP type 2015 Canada EnglishAuthors: Gunn, Geoffrey;Gunn, Geoffrey;handle: 1993/30188
Previous understanding of the winter ice regime in Hudson Bay was limited. This investigation demonstrates the existence of a large coastal polynya in northwestern Hudson Bay. Measuring approximately 600 km long by 60 km wide, this polynya is typically opened and maintained by surface winds for periods of one to five days. Closing mechanisms result from decline in wind maintenance and apparent thermodynamic ice formation. Open water is present on the northwest coast at some size for up to 70% of the winter between ice formation and breakup. Observation of this open water during the period of the winter ice pack indicates that the ‘ice factory’, modelled previously, in northwest Hudson Bay exists. This furthers understanding of the freshwater budgets, stratification, and atmosphere-ocean interactions while presenting new questions about climate change and the future of the Hudson Bay physical system.
MSpace at the Univer... arrow_drop_down MSpace at the University of ManitobaOther ORP type . 2015Data sources: MSpace at the University of Manitobaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1993/30188&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert MSpace at the Univer... arrow_drop_down MSpace at the University of ManitobaOther ORP type . 2015Data sources: MSpace at the University of Manitobaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1993/30188&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2015 Canada EnglishAuthors: Murray, Portia;Murray, Portia;handle: 1974/12681
This study focuses on the experimental testing and numerical modeling of a 4.5 kW transcritical CO2 heat pump water heater at Queen’s University in the Solar Calorimetry Laboratory. Due to the predicted high heat rejection temperatures in a transcritical vapour-compression cycle, buoyancy driven thermosyphon flow through a brazed-plate gas-cooler was proposed to promote tank stratification and to improve system performance. The performance was evaluated through a series of experimental sensitivity and static tank charge tests. A TRNSYS model was also created and verified to simulate the performance of the system under a detailed user demand schedule for a week of operation. The TRNSYS model used a parametric table created with a steady-state model of the vapour-compression system in EES that was validated against experimental data to a standard error of the Y-estimate of ±0.073 kW for heating capacity, ±1.01°C for gas-cooler exit temperature, and ±0.086 for COP. A series of tank charge tests were conducted under thermosyphon flow and forced flow rates at 1 L/min, 2 L/min, and 4 L/min. The thermosyphon charge test produced the highest level of stratification and a total COP of 3 at an average flow rate of 0.73 L/min. All of the forced convection cases operated with a higher degree of mixing. TRNSYS model simulations with hot water draws found that the thermosyphon flow configuration performed with a higher degree of stratification under regular user demand while simulations with high flow rates resulted in a mixed tank at a high temperature. Results predicted an 11% reduction in required heat energy input to the storage, a 30% reduction in electrical energy consumption, a 35% reduction in heat loss, and a 29% improvement in COP for the thermosyphon test as compared to the operation with a mixed tank at 4 L/min. The thermosyphon draw test also performed with the lowest average tank temperature, yet produced the highest draw temperatures. Through these results, it was concluded that natural convection operation with brazed-plate gas-coolers can contribute to a better performing system and this flow configuration should be considered in future applications of this technology.
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For further information contact us at helpdesk@openaire.euapps Other research product2015 Canada EnglishAuthors: Mayor, S. J.; Cahill, J. F.; He, F.; Boutin, S.;Mayor, S. J.; Cahill, J. F.; He, F.; Boutin, S.;A primary impediment to understanding how species diversity and anthropogenic disturbance are related is that both diversity and disturbance can depend on the scales at which they are sampled. While the scale dependence of diversity estimation has received substantial attention, the scale dependence of disturbance estimation has been essentially overlooked. Here, we break from conventional examination of the diversity-disturbance relationship by holding the area over which species richness is estimated constant and instead manipulating the area over which human disturbance is measured. In the boreal forest ecoregion of Alberta, Canada, we test the dependence of species richness on disturbance scale, the scale-dependence of the intermediate disturbance hypothesis, and the consistency of these patterns in native versus exotic species and among human disturbance types. We related field observed species richness in 1 ha surveys of 372 boreal vascular plant communities to remotely sensed measures of human disturbance extent at two survey scales: local (1 ha) and landscape (18 km2). Supporting the intermediate disturbance hypothesis, species richness-disturbance relationships were quadratic at both local and landscape scales of disturbance measurement. This suggests the shape of richness-disturbance relationships is independent of the scale at which disturbance is assessed, despite that local diversity is influenced by disturbance at different scales by different mechanisms, such as direct removal of individuals (local) or indirect alteration of propagule supply (landscape). By contrast, predictions of species richness did depend on scale of disturbance measurement: with high local disturbance richness was double that under high landscape disturbance.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2015 CanadaPublisher:University of Alberta Libraries Authors: Pendakis, Andrew; Wilson, Sheena;Pendakis, Andrew; Wilson, Sheena;doi: 10.7939/r3k649s36
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2014 Canada EnglishAuthors: Matheson, Edward James;Matheson, Edward James;handle: 1974/12630
Calcarenites are common throughout geologic history, but the range of depositional settings and conditions under which they form is poorly constrained. This study compares physically structured calcarenites in the Mississippian of the Western Canada Sedimentary Basin, and the Ordovician of the northern Appalachian Basin. Calcarenites in these successions are used to reconstruct paleo-environments and postulate sequence-stratigraphic subdivisions. Mississippian sediments in the Western Canada Sedimentary Basin were deposited on a sub-thermocline mid to outer ramp where wave action predominated, producing oscillatory and combined-flow sedimentary structures. It is interpreted that occasional storm-generated currents produced offshore-migrating dunes. Cyclonic storms appear to have been rare due to the low latitude and west-coast location of the study area. Swell waves were instead more common, reworking sediment across the mid ramp. Comparatively, carbonate sands in the Ordovician Chazy Group are interpreted to have been deposited as a tropical transgressive system with contemporaneous siliciclastic and carbonate sedimentation. A mixed-lithology barrier-island system is interpreted to have migrated landward as relative sea level rose. Low-energy siliciclastic and carbonate sediments accumulated in the back-barrier lagoon and carbonate dune fields formed seaward of the barrier islands, covering lagoonal deposits along a wave ravinement surface. It is interpreted that the subaqueous dunes developed between storm and fair-weather wave bases due to residual tidal currents that were likely amplified by a regional funnel-shaped embayment and local bathymetric constrictions. As flooding continued, mixed wave and tidal, open-marine carbonates buried the subaqueous dune fields. Broader-scale implications can be drawn from both successions. Mississippian calcarenites suggest that swaley cross-stratification can form down to storm (or swell) wave base on carbonate platforms, and is not restricted to the shoreface as it is in siliciclastics. Furthermore, the deposits suggest that swell-wave deposits are also more likely to be produced in carbonate deposits because of in situ grain production. The Ordovician calcarenites are strikingly similar to those along transgressive, wave-dominated, siliciclastic shorelines, suggesting that barrier-island complexes and associated transgressive sand sheets could be an under-appreciated origin for other carbonate sands.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1974/12630&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2014 Canada EnglishAuthors: Davis, Jamie;Davis, Jamie;handle: 1974/12343
This thesis examined the introduction and potential issues associated with the introduction of low carbon fuel (LCF) within the context of a project currently in progress at the Lafarge Bath plant. An analysis considering the stack sampling methods for acquiring polychlorinated dibenzo-p-dioxin (PCDD)(dioxin)/polychlorinated dibenzofuran (PCDF)(furan) samples was conducted. The variance of dioxin/furan data obtained from single train and simultaneous multiple train stack sampling methods was compared. Standard deviation as a function of concentration, and confidence intervals at the 95th percentile were determined. The relationships were plotted and superimposed upon one another to determine if one of the two methods was beneficial. Results indicated that there was a benefit from the use of simultaneous multiple train sampling for sample concentrations above 129 pg toxic equivalency (TEQ)/m3. To comply with regulations, facilities in Ontario, California and the European Union (EU) that emit above the reporting threshold must quantify and report their emissions. Biogenic-based carbon can be quantified and deducted from the reported greenhouse gas (GHG) emissions for facilities in Ontario, the EU, and under the California Article 5 policy. Biogenic-based carbon is reported separately under the California MRR. The standard ASTM D6866, BS EN 15440, or ISO 13833 can be used to determine the ratio of biogenic-based, to fossil-based carbon. The three standards incorporate a carbon-14 radioisotope analysis. ASTM D6866 and ISO 13833 analyze the flue gas emitted into the atmosphere and BS EN 15440 analyzes a solid fuel. Carbon emissions deductions as determined by life cycle assessment (LCA) are not permitted by these regulations.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1974/12343&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2014 Canada EnglishAuthors: Walker, Matthew;Walker, Matthew;handle: 1974/12225
The SNO+ experiment is a kilo-tonne scale liquid scintillator detector located at SNOLAB in Sudbury, Ontario, Canada. As the successor to the Sudbury Neutrino Observatory, SNO+ will use linear alkylbenzene (LAB) as the scintillator to study neutrinos. During the solar phase, ux measurements will be made of low energy neutrinos originating in the Sun. In another phase, 800 kg of tellurium will loaded into the scintillator to search for neutrinoless double beta decay. Measurements will also be made of neutrinos coming from nearby nuclear reactors and from inside Earth's mantle and crust. To enable these multiple physics goals, a sensitive calibration procedure must be carried out in order to fully understand the detector. The optical and energy responses of the detector will be measured with calibration sources deployed throughout the acrylic vessel. These sources must be connected to the observatory deck above the vessel by gas capillaries, optical bres, and signal wires housed in specially designed submersible umbilical cables. The design and fabrication of these umbilical cables is presented. Development work on a deployed radon calibration source will also be described.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2014 Canada EnglishPublisher:External Relations, University of Regina Authors: External Relations, University of Regina;External Relations, University of Regina;handle: 10294/5933
Jonathan Berthiaume, a fourth-year student in Geology and Geography, was selected to represent the University of Regina at the eighth annual Student-Industry Mineral Exploration Workshop (S-IMEW) sponsored by the Prospectors and Developers Association of Canada. Only twenty-six senior geosciences students were hand-picked from across Canada to participate in a two-week, all expenses-paid workshop to give the students an opportunity to experience the many facets of the mineral exploration industry. Berthiaume was the only student from the University of Regina chosen to participate in the workshop. Staff no
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10294/5933&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10294/5933&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2014 CanadaPublisher:S.l. : s.n., add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1974/9302&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2014 Canada EnglishAuthors: Saucedo Roacho, Alba Luz;Saucedo Roacho, Alba Luz;handle: 1993/23301
The Nopal I uranium deposit located in northern Chihuahua Mexico has been the focus of study for the past 40 years. Information regarding to its formation and evolution through time demonstrate that it has a very complex history. Uranium mineralization occurs in two different styles: uranium oxide uraninite and a secondary phases of silicates (uranophane, soddyite) and oxyhydroxides (schoepite and ianthinite). Petrographic studies have revealed that uraninite is found encapsulated within the host rock (ignimbrites) as fine grains while secondary uranium minerals are filling fractures and micro-veins. Chemical dates from the uranium minerals give a wide range from 0 to 611 Ma; many of the ages may be overestimated since the host rock is 44 Ma. U/Pb isotopic studies demonstrate the presence of common Pb, and after a correction was applied, a new range of dates from 1< to 7 Ma was obtained.
MSpace at the Univer... arrow_drop_down MSpace at the University of ManitobaOther ORP type . 2014Data sources: MSpace at the University of Manitobaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert MSpace at the Univer... arrow_drop_down MSpace at the University of ManitobaOther ORP type . 2014Data sources: MSpace at the University of Manitobaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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apps Other research productkeyboard_double_arrow_right Other ORP type 2015 Canada EnglishAuthors: Gunn, Geoffrey;Gunn, Geoffrey;handle: 1993/30188
Previous understanding of the winter ice regime in Hudson Bay was limited. This investigation demonstrates the existence of a large coastal polynya in northwestern Hudson Bay. Measuring approximately 600 km long by 60 km wide, this polynya is typically opened and maintained by surface winds for periods of one to five days. Closing mechanisms result from decline in wind maintenance and apparent thermodynamic ice formation. Open water is present on the northwest coast at some size for up to 70% of the winter between ice formation and breakup. Observation of this open water during the period of the winter ice pack indicates that the ‘ice factory’, modelled previously, in northwest Hudson Bay exists. This furthers understanding of the freshwater budgets, stratification, and atmosphere-ocean interactions while presenting new questions about climate change and the future of the Hudson Bay physical system.
MSpace at the Univer... arrow_drop_down MSpace at the University of ManitobaOther ORP type . 2015Data sources: MSpace at the University of Manitobaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert MSpace at the Univer... arrow_drop_down MSpace at the University of ManitobaOther ORP type . 2015Data sources: MSpace at the University of Manitobaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1993/30188&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2015 Canada EnglishAuthors: Murray, Portia;Murray, Portia;handle: 1974/12681
This study focuses on the experimental testing and numerical modeling of a 4.5 kW transcritical CO2 heat pump water heater at Queen’s University in the Solar Calorimetry Laboratory. Due to the predicted high heat rejection temperatures in a transcritical vapour-compression cycle, buoyancy driven thermosyphon flow through a brazed-plate gas-cooler was proposed to promote tank stratification and to improve system performance. The performance was evaluated through a series of experimental sensitivity and static tank charge tests. A TRNSYS model was also created and verified to simulate the performance of the system under a detailed user demand schedule for a week of operation. The TRNSYS model used a parametric table created with a steady-state model of the vapour-compression system in EES that was validated against experimental data to a standard error of the Y-estimate of ±0.073 kW for heating capacity, ±1.01°C for gas-cooler exit temperature, and ±0.086 for COP. A series of tank charge tests were conducted under thermosyphon flow and forced flow rates at 1 L/min, 2 L/min, and 4 L/min. The thermosyphon charge test produced the highest level of stratification and a total COP of 3 at an average flow rate of 0.73 L/min. All of the forced convection cases operated with a higher degree of mixing. TRNSYS model simulations with hot water draws found that the thermosyphon flow configuration performed with a higher degree of stratification under regular user demand while simulations with high flow rates resulted in a mixed tank at a high temperature. Results predicted an 11% reduction in required heat energy input to the storage, a 30% reduction in electrical energy consumption, a 35% reduction in heat loss, and a 29% improvement in COP for the thermosyphon test as compared to the operation with a mixed tank at 4 L/min. The thermosyphon draw test also performed with the lowest average tank temperature, yet produced the highest draw temperatures. Through these results, it was concluded that natural convection operation with brazed-plate gas-coolers can contribute to a better performing system and this flow configuration should be considered in future applications of this technology.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research product2015 Canada EnglishAuthors: Mayor, S. J.; Cahill, J. F.; He, F.; Boutin, S.;Mayor, S. J.; Cahill, J. F.; He, F.; Boutin, S.;A primary impediment to understanding how species diversity and anthropogenic disturbance are related is that both diversity and disturbance can depend on the scales at which they are sampled. While the scale dependence of diversity estimation has received substantial attention, the scale dependence of disturbance estimation has been essentially overlooked. Here, we break from conventional examination of the diversity-disturbance relationship by holding the area over which species richness is estimated constant and instead manipulating the area over which human disturbance is measured. In the boreal forest ecoregion of Alberta, Canada, we test the dependence of species richness on disturbance scale, the scale-dependence of the intermediate disturbance hypothesis, and the consistency of these patterns in native versus exotic species and among human disturbance types. We related field observed species richness in 1 ha surveys of 372 boreal vascular plant communities to remotely sensed measures of human disturbance extent at two survey scales: local (1 ha) and landscape (18 km2). Supporting the intermediate disturbance hypothesis, species richness-disturbance relationships were quadratic at both local and landscape scales of disturbance measurement. This suggests the shape of richness-disturbance relationships is independent of the scale at which disturbance is assessed, despite that local diversity is influenced by disturbance at different scales by different mechanisms, such as direct removal of individuals (local) or indirect alteration of propagule supply (landscape). By contrast, predictions of species richness did depend on scale of disturbance measurement: with high local disturbance richness was double that under high landscape disturbance.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2015 CanadaPublisher:University of Alberta Libraries Authors: Pendakis, Andrew; Wilson, Sheena;Pendakis, Andrew; Wilson, Sheena;doi: 10.7939/r3k649s36
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2014 Canada EnglishAuthors: Matheson, Edward James;Matheson, Edward James;handle: 1974/12630
Calcarenites are common throughout geologic history, but the range of depositional settings and conditions under which they form is poorly constrained. This study compares physically structured calcarenites in the Mississippian of the Western Canada Sedimentary Basin, and the Ordovician of the northern Appalachian Basin. Calcarenites in these successions are used to reconstruct paleo-environments and postulate sequence-stratigraphic subdivisions. Mississippian sediments in the Western Canada Sedimentary Basin were deposited on a sub-thermocline mid to outer ramp where wave action predominated, producing oscillatory and combined-flow sedimentary structures. It is interpreted that occasional storm-generated currents produced offshore-migrating dunes. Cyclonic storms appear to have been rare due to the low latitude and west-coast location of the study area. Swell waves were instead more common, reworking sediment across the mid ramp. Comparatively, carbonate sands in the Ordovician Chazy Group are interpreted to have been deposited as a tropical transgressive system with contemporaneous siliciclastic and carbonate sedimentation. A mixed-lithology barrier-island system is interpreted to have migrated landward as relative sea level rose. Low-energy siliciclastic and carbonate sediments accumulated in the back-barrier lagoon and carbonate dune fields formed seaward of the barrier islands, covering lagoonal deposits along a wave ravinement surface. It is interpreted that the subaqueous dunes developed between storm and fair-weather wave bases due to residual tidal currents that were likely amplified by a regional funnel-shaped embayment and local bathymetric constrictions. As flooding continued, mixed wave and tidal, open-marine carbonates buried the subaqueous dune fields. Broader-scale implications can be drawn from both successions. Mississippian calcarenites suggest that swaley cross-stratification can form down to storm (or swell) wave base on carbonate platforms, and is not restricted to the shoreface as it is in siliciclastics. Furthermore, the deposits suggest that swell-wave deposits are also more likely to be produced in carbonate deposits because of in situ grain production. The Ordovician calcarenites are strikingly similar to those along transgressive, wave-dominated, siliciclastic shorelines, suggesting that barrier-island complexes and associated transgressive sand sheets could be an under-appreciated origin for other carbonate sands.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2014 Canada EnglishAuthors: Davis, Jamie;Davis, Jamie;handle: 1974/12343
This thesis examined the introduction and potential issues associated with the introduction of low carbon fuel (LCF) within the context of a project currently in progress at the Lafarge Bath plant. An analysis considering the stack sampling methods for acquiring polychlorinated dibenzo-p-dioxin (PCDD)(dioxin)/polychlorinated dibenzofuran (PCDF)(furan) samples was conducted. The variance of dioxin/furan data obtained from single train and simultaneous multiple train stack sampling methods was compared. Standard deviation as a function of concentration, and confidence intervals at the 95th percentile were determined. The relationships were plotted and superimposed upon one another to determine if one of the two methods was beneficial. Results indicated that there was a benefit from the use of simultaneous multiple train sampling for sample concentrations above 129 pg toxic equivalency (TEQ)/m3. To comply with regulations, facilities in Ontario, California and the European Union (EU) that emit above the reporting threshold must quantify and report their emissions. Biogenic-based carbon can be quantified and deducted from the reported greenhouse gas (GHG) emissions for facilities in Ontario, the EU, and under the California Article 5 policy. Biogenic-based carbon is reported separately under the California MRR. The standard ASTM D6866, BS EN 15440, or ISO 13833 can be used to determine the ratio of biogenic-based, to fossil-based carbon. The three standards incorporate a carbon-14 radioisotope analysis. ASTM D6866 and ISO 13833 analyze the flue gas emitted into the atmosphere and BS EN 15440 analyzes a solid fuel. Carbon emissions deductions as determined by life cycle assessment (LCA) are not permitted by these regulations.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2014 Canada EnglishAuthors: Walker, Matthew;Walker, Matthew;handle: 1974/12225
The SNO+ experiment is a kilo-tonne scale liquid scintillator detector located at SNOLAB in Sudbury, Ontario, Canada. As the successor to the Sudbury Neutrino Observatory, SNO+ will use linear alkylbenzene (LAB) as the scintillator to study neutrinos. During the solar phase, ux measurements will be made of low energy neutrinos originating in the Sun. In another phase, 800 kg of tellurium will loaded into the scintillator to search for neutrinoless double beta decay. Measurements will also be made of neutrinos coming from nearby nuclear reactors and from inside Earth's mantle and crust. To enable these multiple physics goals, a sensitive calibration procedure must be carried out in order to fully understand the detector. The optical and energy responses of the detector will be measured with calibration sources deployed throughout the acrylic vessel. These sources must be connected to the observatory deck above the vessel by gas capillaries, optical bres, and signal wires housed in specially designed submersible umbilical cables. The design and fabrication of these umbilical cables is presented. Development work on a deployed radon calibration source will also be described.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2014 Canada EnglishPublisher:External Relations, University of Regina Authors: External Relations, University of Regina;External Relations, University of Regina;handle: 10294/5933
Jonathan Berthiaume, a fourth-year student in Geology and Geography, was selected to represent the University of Regina at the eighth annual Student-Industry Mineral Exploration Workshop (S-IMEW) sponsored by the Prospectors and Developers Association of Canada. Only twenty-six senior geosciences students were hand-picked from across Canada to participate in a two-week, all expenses-paid workshop to give the students an opportunity to experience the many facets of the mineral exploration industry. Berthiaume was the only student from the University of Regina chosen to participate in the workshop. Staff no
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2014 CanadaPublisher:S.l. : s.n., add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1974/9302&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2014 Canada EnglishAuthors: Saucedo Roacho, Alba Luz;Saucedo Roacho, Alba Luz;handle: 1993/23301
The Nopal I uranium deposit located in northern Chihuahua Mexico has been the focus of study for the past 40 years. Information regarding to its formation and evolution through time demonstrate that it has a very complex history. Uranium mineralization occurs in two different styles: uranium oxide uraninite and a secondary phases of silicates (uranophane, soddyite) and oxyhydroxides (schoepite and ianthinite). Petrographic studies have revealed that uraninite is found encapsulated within the host rock (ignimbrites) as fine grains while secondary uranium minerals are filling fractures and micro-veins. Chemical dates from the uranium minerals give a wide range from 0 to 611 Ma; many of the ages may be overestimated since the host rock is 44 Ma. U/Pb isotopic studies demonstrate the presence of common Pb, and after a correction was applied, a new range of dates from 1< to 7 Ma was obtained.
MSpace at the Univer... arrow_drop_down MSpace at the University of ManitobaOther ORP type . 2014Data sources: MSpace at the University of Manitobaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert MSpace at the Univer... arrow_drop_down MSpace at the University of ManitobaOther ORP type . 2014Data sources: MSpace at the University of Manitobaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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