This research aims to understand the role images currently play within the design process, in order to develop a classification of image types and reference keywords to construct an electronic image database for professional use in product design. Images play an important role in the design process, both in defining the context for designs and in informing the creation of individual design. They are also used to communicate with clients, to understand consumers, to assist in expressing the themes of the project, to understand the related environments, or to search for inspiration or functional solutions. Designers usually have their own collections of images, however for each project they still spend a significant amount of time searching images, either looking within their own collection or searching for new images. This study is based on the assumption that there is a structure that can show the relationship between the image itself and the information it conveys and can be used to develop the database. A product-image database will enable designers to consult images more easily and this will also facilitate communication of visual ideas among designers or between designers and their clients, thus augmenting its potential value in the professional design process. Also, the value of an image may be enhanced by applying its linguistic associations through descriptions and keywords which identify and interpret its content. Through a series of interviews, workshops, and understanding relevant issues, such as design method, linguistic theory, perception psychology and so on, a prototype database system was developed. It was developed based on three information divisions: SPECIFICATION, CHARACTERISTIC, and EMOTION. The three divisions construct a model of the information which an image conveys. The database prototype was tested and evaluated by groups of students and professional designers. The results showed that users understand the concept and working of the database and appreciated its value. They also indicated that the CHARACTERISTIC division was most valuable as it allows users to record images through their recollection of feelings.

Over the past two decades, holistic and systemic approaches to second language development have begun to draw the attention of scholars in the field of SLA. These studies are primarily informed by complexity theory, which emerged from the general systems theory. General systems theory, however, has another important theoretical offshoot in social sciences, namely autopoietic systems theory. An investigation of conceptual tools drawn from the latter theory has been absent in the field of second language education. This paper seeks to explore how systemic thinking has improved the field’s understanding of the complexity of the L2 development. It then explores the possibilities for incorporating autopoietic systems theory into complexity thinking to better understand the dynamics of L2 development at personal and social levels. Finally, it will highlight two insights from a systemic analysis of language development in L2 classroom groupings. These insights build on each other to describe L2 development from a systemic perspective. By exploring and bringing together these theoretical perspectives, this paper hopes to shed light on how complexity theory can provide a systemic description of L2 development.

Robots are now moving from their conventional confined habitats such as factory floors to human environments where they assist and physically interact with people. The requirement for inherent mechanical safety is overarching in such human-robot interaction systems. We propose a dual actuator called Parallel Force/Velocity Actuator (PFVA) that combines a Force Actuator (FA) (low velocity input) and a Velocity Actuator (VA) (high velocity input) using a differential gear train. In this arrangement mechanical safety can be achieved by limiting the torque on the FA and thus making it a backdriveable input. In addition, the kinematic redundancy in the drive can be used to control output velocity while satisfying secondary operational objectives. Our research focus was on three areas: (i) scalable parametric design of the PFVA, (ii) analytical modeling of the PFVA and experimental testing on a single-joint prototype, and (iii) generalized model formulation for PFVA-driven serial robot manipulators. In our analysis, the ratio of velocity ratios between the FA and the VA, called the relative scale factor, emerged as a purely geometric and dominant design parameter. Based on a dimensionless parametric design of PFVAs using power-flow and load distributions between the inputs, a prototype was designed and built using commercial-off-the-shelf components. Using controlled experiments, two performance-limiting phenomena in our prototype, friction and dynamic coupling between the two inputs, were identified. Two other experiments were conducted to characterize the operational performance of the actuator in velocity-mode and in what we call ‘torque-limited’ mode (i.e. when the FA input can be backdriven). Our theoretical and experimental results showed that the PFVA can be mechanical safe to both slow collisions and impacts due to the backdriveability of the FA. Also, we show that its kinematic redundancy can be effectively utilized to mitigate low-velocity friction and backlash in geared mechanisms. The implication at the system level of our actuator level analytical and experimental work was studied using a generalized dynamic modeling framework based on kinematic influence coefficients. Based on this dynamic model, three design case studies for a PFVA-driven serial planar 3R manipulator were presented. The major contributions of this research include (i) mathematical models and physical understanding for over six fundamental design and operational parameters of the PFVA, based on which approximately ten design and five operational guidelines were laid out, (ii) analytical and experimental proof-of-concept for the mechanical safety feature of the PFVA and the effective utilization of its kinematic redundancy, (iii) an experimental methodology to characterize the dynamic coupling between the inputs in a differential-summing mechanism, and (iv) a generalized dynamic model formulation for PFVA-driven serial robot manipulators with emphasis on distribution of output loads between the FA and VA input-sets. / text

This thesis examines a middle manager’s response to strategic directives on integrated care in a National Health Service (NHS) organisation and the development of an awareness of prejudice that acknowledges its relationship to the process of understanding. The research focuses on an integration of two community NHS trusts and an NHS hospital trust into one integrated care organisation (ICO). A change programme was initiated and promulgated on an assumption that integrating the three organisations would facilitate integrated care. However, despite the use of organisational change approaches (such as communication plans and systematic approaches to staff engagement), implementing the strategy directives in practice remained problematic. What emerged during the integration process was resistance to change and a clear division in the different ways of working in the community NHS trusts versus the community and hospital trusts – differences that became apparent from the prejudices of individuals and staff groups. The proposition is that prejudice is an important aspect of relationships whose significance in processes of change is often overlooked. I argue that prejudice is a phenomenon that emerges in the processes of particularisation, which I describe as an ongoing exploration and negotiation in our day-to-day activities of relating to one another. Our pejorative understanding of the term ‘prejudice’ has overshadowed more subtle connotations, which I propose are unhelpful in understanding change in organisations. However, I suggest a different way of thinking about prejudice – namely as a process that should be acknowledged as a characteristic of human beings relating to one another, which has the potential to generate and enhance understanding. The research is a narrative-based inquiry and describes critical incidents during the integration process of the three organisations and focusing on interactions between key staff members within the organisation. In paying attention to our ongoing relationships, there has been a growing awareness of disconnection from traditional management practices, which advocate systematic approaches and staff engagement techniques that are designed to encourage cooperation and reduce resistance to proposed change. This thesis challenges assumptions surrounding prejudice and how middle managers traditionally manage organisational change in practice in their attempts to apply deterministic approaches (which assume a linear causality) to control and influence human behaviour. I have taken into consideration a hermeneutic perspective on prejudice, drawing on the work of Hans Georg Gadamer, and have argued from the viewpoint of the theory of complex responsive processes. This offers an alternative way of thinking about management as social processes that are emergent in our daily interactions with one another, that are not based on linear causality, or on locating leadership and management with individuals. It provides a way of taking seriously the relationships between individuals by paying attention to what emerges from the interplay of our expectations and intentions. This leads to a different way of thinking about the relationship between prejudice and strategic directives, which I argue are not fixed instructions but unpredictable articulations of our gestures and responses that emanate from social interaction and continually iterate our thinking over time. This paradoxically influences how we make generalisations and particularise them in reflecting on and revising our expectation of meaning I suggest that it is not possible to predetermine a strategic outcome; and that traditional management practice, which locates change with individuals – and reduces aspects of organisational life, such as resistance, into a problem to be fixed – obscures our capacity to understand the processes of organisational change in the context of a much wider social phenomenon. I therefore conclude that my original and significant contribution to the theory of complex responsive processes and to practice is encouraging a different way of thinking about prejudice – as a process that can be productive and generate understanding, when considered as encompassing our expectations of meaning, linked to our own self-interests. This then opens up possibilities for transforming ourselves in relation to others – and, through this process, to transform the organisations in which we work.