Fundamental to the understanding of how rivers transform and shape our environment is the role of turbulence and complex, three-dimensional flow, such as vorticity, in sediment transport and erosion. However, classical sediment transport models (or formulae) are based, for the most part, on boundary shear stress and do not incorporate these natural phenomena. This is understandable given that the relationship between turbulence generation, intensity and form; the influence of turbulence on mobile sediment; and the magnitude and patterns of deposition and erosion are complex and difficult to quantify. Nevertheless, the failure to incorporate turbulence and complex, three-dimensional flow into existing models means that our understanding of sediment transport remains incomplete. The central hypothesis of this thesis is that vortical motion is the main factor in the development of local scour. To examine this, a comprehensive experimental approach was taken. This approach involved detailed measurements of the unique three-dimensional patterns of velocity, turbulence and bed morphology associated with flow in an open channel with and without the presence of submerged groyne-like structures (stream barbs and wing dikes) at both the laboratory and field scales. Using densely spaced velocity data and new techniques for processing and analyzing these data, it was possible to identify complex features of the flow field at both scales, such as the presence of vortex cores, and correlate these with changes in bed levels. These data provide a unique perspective of the spatial variability of velocity, turbulence and bed morphology in open channels (and in particular in channel bends, where flow is highly three-dimensional). In particular, it was found that, of the flow parameters analyzed, turbulent stresses were most correlated to scour in channel bends without the presence of structures. In contrast, vorticity was found to be the dominant factor in local scour hole development in the vicinity of submerged structures at both the laboratory and field scale. Such data are rare (if non-existent) in existing experimental research, particularly at the scale of a large natural river. This research also examines stream barb design and performance. Stream barbs (also known as submerged groynes or spur dikes) are a relatively novel approach to stream bank protection and are not common in Canada. The design and installation of stream barbs in a creek in Ottawa (Sawmill Creek) was undertaken to serve as a demonstration project for the use of these structures in a semi-alluvial channel, for which no such case studies exist. Three years of monitoring the site and the performance of these structures to reduce bank erosion and improve aquatic habitat have been carried out. Laboratory testing of stream barb performance was also undertaken and showed that with improper design, the outer bank in a channel bend may be more susceptible to erosion due to excessive local scour downstream of the barb. In particular, to avoid bank erosion downstream of the barb, barbs should be small, such that they create minimum flow obstruction, and include a bank key that is wider than the barb itself and extends in the downstream direction.

We present a three-dimensional, forward model of blood droplets in ight. The proposed model is based on a set of ordinary di erential equations (ODEs) incorporating viscous drag and gravitational forces. We validate the model against laboratory experiments in which a mock crime scene is constructed. The experiments consist of a ballistics gel containing transfer blood or porcine blood shot by a riot ball from a paintball gun constituting a simulated bloodletting event. The experiments are captured using highspeed stereo camera pair from which three-dimensional trajectories can be extracted using tracking software. The long-term goal is to develop an accurate framework for forensic Bloodstain Pattern Analysis (BPA). / UOIT

We present a three-dimensional, forward model of blood droplets in ight. The proposed model is based on a set of ordinary di erential equations (ODEs) incorporating viscous drag and gravitational forces. We validate the model against laboratory experiments in which a mock crime scene is constructed. The experiments consist of a ballistics gel containing transfer blood or porcine blood shot by a riot ball from a paintball gun constituting a simulated bloodletting event. The experiments are captured using highspeed stereo camera pair from which three-dimensional trajectories can be extracted using tracking software. The long-term goal is to develop an accurate framework for forensic Bloodstain Pattern Analysis (BPA). / UOIT

The purpose of this study is to better understand the ways in which scientific discourse contributes to the individualization and moralization of obesity, through reality television. Popular reality television programs emphasize the importance of lifestyle to health and wellness, often focusing on participant weight loss. Within this research, I describe the ways in which the obesity epidemic is approached in popular reality television, specifically in NBCs The Biggest Loser, and identify how the discourse of obesity is tied to issues of individualization, surveillance, and morality. Specifically, I undertake a laboratory study of The Biggest Loser to illustrate how this methodology can be extended from the traditional laboratory into a space of science that has no formal walls. With a focus on the seventh season of The Biggest Loser, I argue that the program is based on a human experiment that illustrates the interconnectedness of science and society, while perpetuating individualized and moralized obesity discourse. By conducting a laboratory study of a popular television program, I offer a new way to address obesity discourse

The hydraulic-mechanical behaviour of swelling clay is examined in this thesis. The study includes laboratory testing and numerical modeling which considers the influence of boundary conditions on the hydraulic-mechanical behaviour of a compacted unsaturated swelling clay soil. The laboratory testing component of this research consists of three (3) series of tests using a newly modified triaxial apparatus on which mechanical and hydraulic boundary conditions are altered during liquid infiltration. Mechanical boundary conditions range from constant volume to constant mean stress and also include constant stiffness which is a spring type boundary consisting of both volume expansion and mean stress increase. Hydraulic boundary conditions include drained and undrained flow into triaxial specimens. The numerical modeling component of this research includes the creation of a new capillary tube model for swelling clay materials and incorporates dynamic changes to the cross-sectional area for flow. Laboratory results are modeled using the capillary tube model, an empirical hydraulic model, D’Arcy’s Law, and in an elastic-plastic context for unsaturated soil. Results of the laboratory and numerical modeling components show that boundary conditions dominate the hydraulic-mechanical behaviour of unsaturated swelling clay soil during liquid infiltration. In particular, a mechanism is shown to explain how hydraulic conductivity of a swelling soil can decrease with increasing water content at constant void ratio. Finally hydraulic and mechanical behaviour cannot be considered separately in swelling materials due to the intimate relationship in their response. / October 2006

Fundamental to the understanding of how rivers transform and shape our environment is the role of turbulence and complex, three-dimensional flow, such as vorticity, in sediment transport and erosion. However, classical sediment transport models (or formulae) are based, for the most part, on boundary shear stress and do not incorporate these natural phenomena. This is understandable given that the relationship between turbulence generation, intensity and form; the influence of turbulence on mobile sediment; and the magnitude and patterns of deposition and erosion are complex and difficult to quantify. Nevertheless, the failure to incorporate turbulence and complex, three-dimensional flow into existing models means that our understanding of sediment transport remains incomplete. The central hypothesis of this thesis is that vortical motion is the main factor in the development of local scour. To examine this, a comprehensive experimental approach was taken. This approach involved detailed measurements of the unique three-dimensional patterns of velocity, turbulence and bed morphology associated with flow in an open channel with and without the presence of submerged groyne-like structures (stream barbs and wing dikes) at both the laboratory and field scales. Using densely spaced velocity data and new techniques for processing and analyzing these data, it was possible to identify complex features of the flow field at both scales, such as the presence of vortex cores, and correlate these with changes in bed levels. These data provide a unique perspective of the spatial variability of velocity, turbulence and bed morphology in open channels (and in particular in channel bends, where flow is highly three-dimensional). In particular, it was found that, of the flow parameters analyzed, turbulent stresses were most correlated to scour in channel bends without the presence of structures. In contrast, vorticity was found to be the dominant factor in local scour hole development in the vicinity of submerged structures at both the laboratory and field scale. Such data are rare (if non-existent) in existing experimental research, particularly at the scale of a large natural river. This research also examines stream barb design and performance. Stream barbs (also known as submerged groynes or spur dikes) are a relatively novel approach to stream bank protection and are not common in Canada. The design and installation of stream barbs in a creek in Ottawa (Sawmill Creek) was undertaken to serve as a demonstration project for the use of these structures in a semi-alluvial channel, for which no such case studies exist. Three years of monitoring the site and the performance of these structures to reduce bank erosion and improve aquatic habitat have been carried out. Laboratory testing of stream barb performance was also undertaken and showed that with improper design, the outer bank in a channel bend may be more susceptible to erosion due to excessive local scour downstream of the barb. In particular, to avoid bank erosion downstream of the barb, barbs should be small, such that they create minimum flow obstruction, and include a bank key that is wider than the barb itself and extends in the downstream direction.

The purpose of this study is to better understand the ways in which scientific discourse contributes to the individualization and moralization of obesity, through reality television. Popular reality television programs emphasize the importance of lifestyle to health and wellness, often focusing on participant weight loss. Within this research, I describe the ways in which the obesity epidemic is approached in popular reality television, specifically in NBCs The Biggest Loser, and identify how the discourse of obesity is tied to issues of individualization, surveillance, and morality. Specifically, I undertake a laboratory study of The Biggest Loser to illustrate how this methodology can be extended from the traditional laboratory into a space of science that has no formal walls. With a focus on the seventh season of The Biggest Loser, I argue that the program is based on a human experiment that illustrates the interconnectedness of science and society, while perpetuating individualized and moralized obesity discourse. By conducting a laboratory study of a popular television program, I offer a new way to address obesity discourse

The purpose of this study is to give a description of how six pedagogues in the third and fourth grade teaches mathematics and which working methods they use. When using the term working methods it is implied that it can for example be outdoors pedagogic, laboratory material, problem solutions et cetera. This material can both be an everyday material or a pedagogical material. The research was carried through by interviews and observations. Six pedagogues were interviewed in two different districts. Most of the pedagogues taught in the third grade and some in the fourth grade. The results show that all of the pedagogues use outdoor pedagogic, laboratory material and the schoolbook when teaching in mathematics.   According to the pedagogues elaborative material is when the pupils use their hands and bodies. The pupils are supposed to feel and act. The pedagogues work with elaborative material first by giving an introduction about the material that they are going to use in the mathematical lessons. The pedagogues use elaborative material so that the pupils get a better understanding. The pedagogues also considered that using elaborative material contributed to the pupils learning by several other senses, which then led to an easier and more fun understanding of mathematics.

This thesis has been done in ROM (Royal Ontario Museum) located in Toronto Canada. It focuses on learning in two parts of the museum. It tries to find out how much each part is effective in terms of learning. Studies have been done in the Digital gallery, which has been equipped with digital video projector and workstation that allows visitors to interact with the collections in 2 or 3 dimensional spaces while they are watching the presenting film. The rest of the study was in Hands-on laboratory, which allows students to examine artifacts and discuss their findings .The method was used in this research is Concept mapping .In Digital gallery, 24 schools surveys in the form of pre-post- test by help of the concept mapping method has been done. In Hands-on laboratory, 12 schools have been studied by using the combination of interviewing and written pre post-test of concept mapping.

Abstract Laboratory animals play an essential role to level up medical research, life science and biotechnology. On the other hand, animal quality and supply would directly influence the result of research. Since 1940, western countries has been developing the laboratory animal science, and 1990 western countries start to develop biotechnology industry, until 2000, has tremendous growth, especially the human genomic sequence was completed causing the demand of disease model animals increasing and also speed up the development of biotechnology industry. Regarding the biotechnology industry in Taiwan, started in 2000 and has very limit development for laboratory animal industry become an obstacle of biotechnology industry developing. Therefore, it can¡¦t be ignored that laboratory animal industry leveling up and future developing strategy has a high tribute to Taiwan biotechnology. As case study, we got an approval to review two companies how to improve and maintain their competitive advantages through managing process. These two companies are 1) Charles River Laboratories who has more than 50years history and is the largest global laboratory animal supply company; 2) BioLasco Taiwan who is the only one private company in Taiwan producing SPF Rodents. Through Michael Porter¡¦s 5 competitive forces and SWOT together with two companies developing strategies as references of the future development strategy models for government policy making and also for private enterprise who are interested in involving in this industry. The results of this study provides the key developing strategies for Taiwan laboratory animal industry as following aspects: (1) Market globalization : Regionalized marketing and production for SPF laboratory animals and model animals to meet the economy scale in order to reduce the cost and to get more benefits. (2) The diversification of products and services: Excluding laboratory animal supply, breeding equipments production management of animal housing and outsourcing service forming multiple product lines to enhance the industrious competitiveness and expand market potential for risk sharing sake. (3)R&D and talent internationalization: Through national innovation system and human resource integrated, accompany with NIH. Jackson Lab. and other international/ domestic research institutes together developing new products and new technologies to boast the global competitiveness and competitive advantage for Taiwan laboratory animal industry.