Browsing by Title
Now showing items 2827-2846 of 3551
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Risk sensitive foraging by rats in the operant arena
(1988)The operant arena was used as the framework in which to study the theory of risk-sensitivity, A small colony of hooded rats was exposed to increasing work demands while given the choice between simultaneous fixed ratio ... -
Risk-sensitivity in a rat population under interval schedules of reinforcement : open and closed economies
(1995)A group consisting of eight male Hooded rats was tested for risk-sensitive foraging preferences in an eight station operant arena, under conditions of open and closed economies. The group could choose to forage at either ... -
Risky riding: a comparison between two personality theories on motorcyclist riding behaviour
(2018)Motorcyclists have the highest likelihood of being involved in a fatal crash of all vehicle passengers. Given the multiple human factors that contribute to crash involvement, few personality models have been utilized to ... -
Road-network location heuristics for the tactical harvest-scheduling model
(2022)In tactical planning in hierarchical forest management, cut-blocks are selected for maximizing revenue and road networks are allocated at minimal cost in order to maximize profit. The selected cut-block set and requisite ... -
Roadside floristic patterns and revegetation by using native plants in Terra Nova National Park, Newfoundland, Canada
(2004)This thesis reports on a study of roadside floristic patterns and revegetation (cultural methods) of newly constructed roadsides by using native plants along Trans Canada Highway (TCH) in Terra Nova National Park (TNNP), ... -
Robust and adaptive control via backstepping technique
(2005)Most of the control systems are designed using linear techniques, which have been well developed. Practical physical systems are typically nonlinear. Nonlinear control is one of the biggest challenges in modern control ... -
Robust control of DC-DC boost converter / by Hisham Mahmood.
(2008)In this thesis, a robust controller comprising of a PI with phase-lead compensator for a DC-DC boost converter designed using classical frequency response method is presented. The superior performance of this controller ... -
Robust control of multi-stage web systems
(2007)Web handling systems are widely used in industries such as pulp and paper, printing press, and steel milling. Tension variations in web materials are very common in operation and tension control is critical to the quality ... -
Robust control techniques for DFIG driven WECS with improved efficiency
(2019)Wind energy has emerged as one of the fastest growing renewable energy sources since mid-80‘s due to its low cost and environmentally friendly nature compared to conventional fossil fuel based power generation. Current ... -
Robust H infinity model reference tracking control of singular systems using T-S fuzzy model and LMI
(2014-12-12)In this study, a Takagi-Sugeno fuzzy model based tracking controller is proposed for nonlinear high index singular systems with a guaranteed H1 model reference tracking performance. A coordinate transformation is introduced, ... -
Rock magnetic and structural investigation of the Moss Lake stock and local area : western Shebandowan belt
(1995)The thesis area is located 120 km west of the City of Thunder Bay, Ontario, straddling the contact of the Quetico and Wawa subprovinces of the Archean Superior Province. Metasedimentary rocks of the Quetico Subprovince ... -
Rock magnetic studies of the CY-4 drillhole through the Troodos ophiolite, Cyprus
(2006)Rock magnetic properties of 50 specimens from a continuous section through the lower layers of the Troodos ophiolite in the CY-4 drill hole, reveal an alteration and palaeomagnetic history consistent with ocean spreading. ... -
A role and attribute based encryption approach to privacy and security in cloud based health services
(2012-11-10)Cloud computing is a rapidly emerging computing paradigm which replaces static and expensive data centers, network and software infrastructure with dynamically scalable “cloud based” services offered by third party providers ... -
Role model/mentor influence on the career path of college professors
(2009)The original intent of the proposal was to study the impact of role models on a small body of teachers in the Engineering Technology division at an urban college, preferably with experience teaching math and science. ... -
Role of aquatic macrophytes in trophic status of Northwestern Ontario lakes
(1993)This research focusses on the development, refinement, and assessment of regional trophic status models for lakes of northwestern Ontario. Two companion papers describe the application of image analysis of aerial photographs ... -
The role of beavers in ecosystem restoration and the environment
(2022)This thesis analyzes the role of beavers in ecological restoration and the environment. At the same time, it discusses controversies related to beavers and gives final recommendations. This paper analyzes the impact of ... -
The role of co-construction of the clock model in the development of fractional understanding in a grade 4/5 classroom
(2014-01-22)The focus of this case study was to determine the impact of the co-construction and use of the clock model in the development of fractional understanding in a Grade 4/5 classroom. A pretest, instruction, midtest, intervention, ... -
Role of cognitive appraisal in the recovery from stress
(1988)The present study examined the effects of cognitive appraisal on heart rate recovery from a psychological stressor. Forty introductory psychology students were randomly assigned to either a threat or challenge condition. ... -
The role of emotions in generating and sustaining climate action for youth climate champions: an exploratory study in Northern Ontario
(2022)Anthropogenic climate change is a wicked problem resulting in complex and compounding health impacts at multiple scales and across timelines. While there is a solid base of empirical evidence documenting the physical ... -
The Role of free- and liposomal-N-acetycysteine in paraquat-induced cytotoxicity
(2012-11-10)Paraquat (PQ), one of the most commonly used herbicides worldwide, is hightly toxic to humans and exposure can result in severe clinical situations with no effective treatments available. The toxicity of PQ has been ...