Hydrolytic de-polymerization of hydrolysis lignin using alkaline catalysts: effects of process parameters and optimization

Hydrolysis lignins (HL) are a byproduct from acid or enzymatic biomass pretreatment processes such as the ones employed in cellulosic sugar and/or ethanol plants. They are mainly composed of lignin , unreacted cellulose and mono and oligosaccharides.

Effects of Introduced Honeybees (Hymenoptera: Apidae) on Native Stem Nesting Bees (Hymenoptera: Megachilidae) in Temperate, Mixed-wood Forests

The present study investigates the impact of Eurasian honeybees on the functional diversity and reproductive ability of native stem-nesting bees. Honeybees have the potential to compete with native stem-nesting bees, however, currently no studies have examined this interaction in North American temperate forests. The main goal of this project is to develop a more mechanistic understanding of bee community composition and distribution, in particular, under the threat of exotic introduction.

The Effects Of Road Reclamation Method On Woodland Caribou And Other Boreal Species

This study will examine the relationship between reclamation methods and when deactivated roads become suitable for caribou, using developing UAV technology to monitor caribou while testing UAV effectiveness in the field. This will be done by establishing long-term cameras along reclaimed road sites, monitoring wildlife movement through the study areas and by completing aerial wildlife surveys with UAVs and different sensors to establish a baseline count of the animals within the area and aid in tracking their movements.

Sustaining our forests in southwestern Alberta

This MITACS internship will support Julie Fortin, an MSc student whose focus is on developing new techniques for analyzing oblique historical mountain survey images based on the world’s largest systematic collection of historical mountain survey images, the Mountain Legacy Project. Her research is driven by questions about shifts in biodiversity over time, built atop biodiversity data and models developed by Dr. Jason Fisher and his colleagues and crews with Alberta Innovates for Willmore Wilderness.

Understanding historical forest landscape dynamics in the Alberta foothills

An emerging strategy for managing natural resources such as Canada's forests more sustainably and responsibly is to use knowledge of how Mother Nature has done it to help guide our hand. This so-called ‘ecosystem-based” approach has gained favour with provincial and federal governments, as well as national and international certification agencies.

Understanding of the effect of wood quality and pulping conditions on the properties of dissolving pulp

AV Nackawic has experienced significant variations in the quality of its final product, including, pulp viscosity. There are many variables, both quality parameters of raw materials such as, wood species, chip size, and process conditions such as P- factor, EA, H-factor, play a key role in the overall quality of the final product. Due to the multivariable and complex nature of the issue, modelling/ data analyses using PCA and PLS analyses can reveal the key parameters that affect the pulp quality, thus gaining operational guidance.

LiDAR derived wood quality attributes across the landscape

The proposed research will create value added models that will be used to predict wood quality attributes (wood density and fibre dimensions) on the landscape within Ontario’s boreal forest. This will be achieved by modeling stem and stand attributes from airborne laser scanner data (LiDAR). The derived stems and stand attributes (such as tree height, diameter, crown length, and stocking) will be used as predictors of inherent wood quality attributes (Fibre dimensions and wood density).

Development of a Raman probe for the on-line determination of pulp properties

Canadian northern bleached softwood kraft (NBSK) market pulps set standards worldwide for fibre strength, length, fineness and uniformity. These characteristics add unmatched strength and durability to finished goods, and this drives a high international demand for NBSK pulp. However, competition has increased the price-performance pressure on Canadian suppliers.

Development of new generation of tool steels by modification in chemical composition, grain refinement, and cryogenic treatment - Year two

DK SPEC is a major producer of blades, cutters, and saws, made of tool steel, for the Canadian wood industry. In order to keep up with the stiff competition, the company has acquired some state-of-the-art heat treatment furnaces for cryogenic treatment. They have a complete cycle for machining, hardening, cryogenic and tempering cycles. They will shortly acquire a rolling machine in order to do deformation either cold or warm on the as-annealed materials before machining and final advanced heat treatment cycle.

Stand and stock table projection system for Interior Douglas-fir in the central interior of British Columbia

Forest management in Canada will be more and more constrained by species habitat requirements as well as the risks and results of natural disturbances. The recent, sever Mountain Pine Beetle outbreak in the interior of British Columbia resulted in a harvest shortage of lodgepole pine in this region. Forest managers now rely heavily on non-pine harvests, mainly within the Interior Douglas-fire forest type. This forest type requires partial cutting and is further constrained by several ecological and social forest management objectives.

Pages