Mechanics of Bone-substituting Meta-biomaterials

One of the main functions of bone is to support the human body mechanically. To fulfil its complex role, bone possesses unique mechanical properties: it is stiff enough to resist deformation while being able to absorb energy.<br/>In this thesis, a comprehensive study has been carried out using analytical methods, numerical methods and...

Fatigue and quasi-static mechanical behavior of bio-degradable porous biomaterials based on magnesium alloys

Magnesium and its alloys have the intrinsic capability of degrading over time in vivo without leaving toxic degradation products. They are therefore suitable for use as biodegradable scaffolds that are replaced by the regenerated tissues. One of the main concerns for such applications, particularly in load-bearing areas, is the sufficient...

Fatigue performance of additively manufactured meta-biomaterials: The effects of topology and material type

Additive manufacturing (AM) techniques enable fabrication of bone-mimicking meta-biomaterials with unprecedented combinations of topological, mechanical, and mass transport properties. The mechanical performance of AM meta-biomaterials is a direct function of their topological design. It is, however, not clear to what extent the material type...

Universal fine-structure eraser for quantum dots

We analyze the degree of entanglement measurable from a quantum dot via the biexciton-exciton cascade as a function of the exciton fine-structure splitting and the detection time resolution. We show that the time-energy uncertainty relation provides means to measure a high entanglement even in presence of a finite fine-structure splitting...

Effects of heat treatment on microstructure and mechanical behaviour of additive manufactured porous Ti6Al4V

Titanium and its alloys such as Ti6Al4V play a major role in the medical industry as bone implants. Nowadays, by the aid of additive manufacturing (AM), it is possible to manufacture porous complex structures which mimic human bone. However, AM parts are near net shape and post processing may be needed to improve their mechanical properties....

Diversity and social cohesion: the case of Jane-Finch, a highly diverse lower-income Toronto neighbourhood

Diversity has increasingly emerged as the core focus of many studies concerning factors impacting on social cohesion. Various scholars have concluded that diversity is detrimental to cohesion. Most of this research, however, draws generalisations based upon quantitative data and fails to account for the impact of inequality, segregation and...

Living with diversity in Jane-Finch

In the past decades, diversity has become a popular catchphrase in theoretical, policy and public discourses in Canadian cities.<br/><br/>This study seeks to add to our understanding of urban diversity, as perceived and experienced by those who inhabit, frequent and govern urban areas. The study further makes use of a variety of qualitative and...

Additively manufactured metallic porous biomaterials based on minimal surfaces: A unique combination of topological, mechanical, and mass transport properties

Porous biomaterials that simultaneously mimic the topological, mechanical, and mass transport properties of bone are in great demand but are rarely found in the literature. In this study, we rationally designed and additively manufactured (AM) porous metallic biomaterials based on four different types of triply periodic minimal surfaces (TPMS)...

Serving diverse communities: The role of community initiatives in delivering services to poverty neighbourhoods

The recent decades have witnessed a shift from the traditional top-down model of service delivery led by the state to the provision and delivery of services by community organisations. This article explores the extent to which community initiatives in Jane-Finch, a highly diverse, lower income, inner-suburban neighborhoods of Toronto, were...

Fieldwork inhabitants, Toronto (Canada): Report 2h

Additively Manufactured Open-Cell Porous Biomaterials Made from Six Different Space-Filling Unit Cells: The Mechanical and Morphological Properties

It is known that the mechanical properties of bone-mimicking porous biomaterials are a function of the morphological properties of the porous structure, including the configuration and size of the repeating unit cell from which they are made. However, the literature on this topic is limited, primarily because of the challenge in fabricating...

Planning for integration as a two way process: Perceptions from Toronto

Integration has evolved as a well-embraced discourse within theory and policy debates concerning the accommodation of newcomers. However, in today’s increasingly cosmopolitan cities of Europe planning for integration fails to properly address increasing diversity as it is often grounded in pre-conceived assumptions of traditional nation-state...

A cache architecture for counting Bloom filters: Theory and application

Within packet processing systems, lengthy memory accesses greatly reduce performance. To overcome this limitation, network processors utilize many different techniques, for example, utilizing multilevel memory hierarchies, special hardware architectures, and hardware threading. In this paper, we introduce a multilevel memory architecture for...

High-performance Processing in Networked and Grid Environments

In this dissertation, we present several techniques to achieve the high-performance processing in networked and grid environments. Many applications need a high-performance processing system to execute efficiently. High-performance processing mainly stems from parallelism. The parallel nature of grid computing is a very attractive solution to...