Genesis and the State of the Culture

This was the Sunday evening presentation at the 2018 International Conference on Creationism

Inside the Nye-Ham debate : is creation a viable model... : revealing truths from the worldwide clash of the century

392 p.; 23 cm

Stable boundary treatment for the wave equation on second-order form

A stable and accurate boundary treatment is derived for the second-order wave equation. The domain is discretized using narrow-diagonal summation by parts operators and the boundary conditions are imposed using a penalty method, leading to fully explicit time integration. This discretization yields a stable and efficient scheme. The analysis is verified by numerical simulations in one-dimension using high-order finite difference discretizations, and in three-dimensions using an unstructured finite volume discretization

Stable boundary treatment for the wave equation on second-order form

A stable and accurate boundary treatment is derived for the second-order wave equation. The domain is discretized using narrow-diagonal summation by parts operators and the boundary conditions are imposed using a penalty method, leading to fully explicit time integration. This discretization yields a stable and efficient scheme. The analysis is verified by numerical simulations in one-dimension using high-order finite difference discretizations, and in three-dimensions using an unstructured finite volume discretization

PdIn-Based Pseudo-Binary Alloy as a Catalyst for NOx Removal under Lean Conditions

Developing a noble-metal-based catalyst that works effectively for NOx removal in the presence of excess O-2 is still a big challenge in catalytic chemistry for exhaust gas purification. To overcome this challenge, in this study, we designed and prepared a nanoparticulate (Pd1-xPtx)In pseudobinary alloy using Al2O3 and CeO2 supports, where a portion of Pd was replaced with Pt to improve the oxidation tolerance of In during NOx reduction under lean conditions. Multiple characterization techniques were used to confirm the formation of the desired pseudobinary alloy phase. The prepared Pd-Pt-In/CeO2 catalyst exhibited high NO conversion to N-2 in NO-CO-O-2 reaction with a wide range of oxygen concentrations including lean conditions (80%-100%, 0.75 <= lambda <= 1.5, 350 degrees C) and retained its catalytic performance during rich-lean cycles

Panel Discussion: Transportation, Supply Chain and Retail Resilient Design

Panel discussion with Mr. Ken Senser and Mr. Kelly Hoggan discussing best practices and lessons learned during COVID for transportation, retail and government operations

Pit to park : gravel mine reclamation using biosolids

In an innovative recycling and mine reclamation project Valley Gravel Sales Ltd., GVRD Parks, GVRD Biosolids Recycling and Sylvis Environmental worked together in the reclamation of a gravel pit located in one of GVRD's regional parks. In the transformation from "Pit to Park" the use of Nutrifor™ (GVRD's biosolids) and Nutrifor compost was proposed as a soil amendment to assist in the establishment of vegetation over the site. Extensive public consultation was conducted in both final land use planning and the use of organic amendments in achieving mutual objectives. As the gravel pit and park are located over the sensitive Abbotsford Sumas aquifer, there was concern that the addition of organic amendments would further compromise aquifer quality. Local area residents, some on shallow well water, were also concerned about the possible impact of the application on their drinking water source. Local area wells were included in the monitoring program and stakeholders were involved in the decision-making and progress of the reclamation activities through public meetings, tours, direct mail-outs and newspaper advertisements. A lysimeter study was completed to quantify the environmental effects of the proposed applications on the groundwater, soil and vegetation prior to reclamation. This study assisted in refining and verifying amendment application rates that are protective of the environment. Upon receiving a BC Ministry of Environment, Lands and Parks Approval, approximately 12 hectares of the recontoured pit were reclaimed with 930 bulk tonnes (235 dry tonnes) of biosolids and 3918 bulk tonnes (1884 dry tonnes) of biosolids compost as a 1:1:4 by volume mix (compost:biosolids:native soil) in September, 1999. After the removal of the last sand stockpile expected in Summer 2000, final applications will be made in the late summer to the remaining areas. Environmental monitoring showed a post application increase in soil nutrients. No effect on groundwater or surface water was observed. The gravel pit within Aldergrove Lake Regional Park will soon be a parkland green space, complete with picnic area, concert bowl, and a canoeing lake with three islands.Non UBCUnreviewedOthe

Electroassisted Propane Dehydrogenation at Low Temperatures : Far beyond the Equilibrium Limitation

Propylene production by propane dehydrogenation (PDH) generally requires high temperatures due to thermodynamic equilibrium limitations. This study developed a novel type of catalytic system for low-temperature PDH by combining a surface protonics methodology with intermetallic active sites. By application of an electric current, the intermetallic Pt-In/TiO2 catalyst gave a propylene yield of 10.2% with high selectivity, even at 250 degrees C, where the thermodynamic equilibrium yield was only 0.15%. Electroassisted proton collisions with propane allowed an unusual reaction pathway for low-temperature PDH. Alloying of Pt with In drastically enhanced the activity and selectivity due to the increased electron density of Pt

The use of digested sewage sludge as an aid to reclaim and revegetate surface/strip mines and mine spoils

Ecosystem restoration, and satisfactory revegetation of strip-mined areas provides an amiable complement to the disposal of treated sewage sludge. Although surface mining is often the most economical method for removing mineral resources, its detrimental impacts on the land surface landscape and ecological environment is and will continue to be a concern. The problem of reclaiming lands disturbed by mining activities is extremely important, as is the sustainability of these reclaimed lands. Stringent regulations, in combination with aie cost of commercial fertilizers, make the search for fertilizer substitutes and alternate soil amendments vital. The use of anaerobically digested de-watered sewage sludge as both a fertilizer source and a soil organic matter amendment in mine reclamation can provide the solution to two pressing and use-related problems: the disposal of treated sewage sludge in a beneficial re-use function and the reclamation and revegetation of mine spoils. Sewage sludges can be regarded as a recyclable source of nutrients and organic matter, and can aid in revegetation and initiation of a sustainable soil humus complex. The purpose of this symposium submission is to review the current state of knowledge on the use of sewage sludges for revegetation and reclamation of surface/strip mines and mine spoils. The long-term sustainability of reclamation efforts utilizing sludges will be detailed by assessing related research projects and operational trials. Results of a joint GVRD/UBC investigation of the use of sewage sludge as an organic forest fertilizer will be presented. Potential environmental impacts are reviewed including effects on vegetation, soil properties, water quality and animal health.Forestry, Faculty ofNon UBCUnreviewedOthe