Renewable energy integration into diesel generation systems for remote island communities is a rapidly growing energy engineering field. Fuel supply issues are becoming more common and the disruption, instability and panic caused by fuel shortages results in inefficient and unreliable power supplies for remote island communities. This thesis develops an energy engineering approach for meeting renewable energy development, supply security, cost and sustainability objectives. The approach involves adapting proven energy engineering techniques including energy auditing, energy system modelling with basic cost analysis and demand side management. The novel aspect of this research is the development of critical load engineering in the system design, and informing this with an assessment of essentiality of energy services during the audit phase. This approach was prompted by experiences with previous fuel shortages and long term sustainability policy drivers. The methodology uses the most essential electric loads as the requirement for sizing the renewable energy capacity in the hybrid system. This approach is revolutionary because communication with the customers about availability and the need to shed non-essential loads helps to both meet cost and security requirements and to reduce levels of panic and uncertainty when fuel supply issues arise. A sustainable power generation system is a system that provides continuity of supply for electrical appliances that are considered by the residents to be essential and for which adaptability and resilience of behaviour were key design priorities over growth. The sustainable electrical energy supply should match the critical (essential) load and should have the ability to continue without major disruptions to the daily lives of the people in these communities. Essential energy end uses were identified through energy audits and surveys. The electric power system is designed so that renewable energy sources alone can meet that “essential” demand with a plant that is both economically and technically feasible. Diesel generators were supplemented to meet the short fall in meeting the unconstrained electric demand. This is to design a system that is generally competitive with the present conventional power generation. This method should be particularly suitable for handling the complexities of a modern-day energy system in terms of planning a sizable sustainable energy and electricity system, either based on wholly sustainable sources or integrating sustainable sources of energy into a conventional generation system. The final hybrid system chosen after numerous simulations for the case study (Fenfushi island in the Maldives) community has the minimum renewable energy sources to meet the essential load but uses diesel to supplement the present load. A variety of design parameters such as PV size, wind turbine sizes and numbers and battery capacity have been considered. The minimum renewable energy sources to supply the essential loads of the community were simulated with diesel generators to find the optimal supply mix for the present load (typical unconstrained demand). The final outcome has the following characteristics: NPC and COE were $1,532,340 and $0.37/kWh respectively, lower than any diesel-only systems that could supply the demand. The total annual electricity production is 386,444 units (kWh), of which 9.61% is excess electricity and the annual operating cost is $68,688. Compared to the diesel-only systems there is a fuel savings of 77,021 litres of diesel per year, which is a 66.5 % reduction. An annual carbon dioxide emission reduction of 202,824 kg was achieved, which is a reduction of 66.5%. An annual renewable energy contribution of 70% would be achieved, 34% of which would be from PV arrays and 36% from wind turbines. The selected system shows that even with 30 percent power supply from diesel generators, still the highest NPC is on diesel generation for a life of over 25 years.

Freight transportation is an integral element of various supply chains and has a complex and dynamical interrelationship with human economic activities. Modern logistical strategies paved way to the current supply chain organisation and logistics network design resulting in a more global economy and huge economies of scale. Recent trends of volatility of oil price have major implications in the movement of commodities across the supply chains. Likewise, climate change issues have presented urgent challenges in reducing carbon emissions for the transport and logistics sector. Pressure on the sector comes from both governments and consumers alike, demanding future sustainability as well as corporate environmental and social responsibility. The original contribution of this research is to investigate the system-wide dynamics of freight transportation and production in the context of supply chains. A theoretical framework called the ‘Geographic Adaptive Potential’ or GAP is built to understand how constraints in energy and emissions affect the production and distribution of commodities. The changes in the supply chain were investigated in four different components, namely a) the potential to shift to less energy and emissions intensive modes for long-haul freight, b) logistical strategies in the last leg of the chain or urban freight and c) local production and distribution, and d) the accessibility of potential customers to the markets. The design of the GAP components is in correspondence with the links of the supply chain. The analyses yielded an evaluation of the adaptive capacity of the freight transport and production system. For long-haul freight, a GIS-based model was created called the ‘New Zealand Intermodal Freight Network’ or NZIFN. It is an optimisation tool integrating the road, rail and shipping network of New Zealand and calculates that minimum time, operating costs, energy and emissions routes between 2 given locations. The case studies of Auckland to Wellington and Auckland to Christchurch distributions of non-perishable products established that even a marginal increase of rail and coastal shipping share produced around 10% reduction in both freight energy and greenhouse gas emissions. In the study of the last leg of the supply chain, the truck trip generation rates of different food stores were investigated. The strongest factors influencing the trip rates to a store are its size and product variation, the latter being a new parameter introduced in the dissertation. It is defined as the total number of brands for 6 chosen commodities commonly found in the stores. The trip rates together with the truck type and distance travelled were used to compute the freight energy usage of the stores. Results revealed that supermarkets consume the most energy for their delivery operations but relative to its physical size, they are more energy efficient than smaller stores. This is due to the utilisation of advanced logistical strategies such as freight consolidation and the effective use of distribution centres. The localised production chapter was explored in the context of Farmers’ markets and their difference with the conventional supermarket distribution system. Using a freight transport energy audit, the energy intensities of both systems were compared. The findings showed that Farmers’ markets were more energy-intensive than supermarkets owing to the low volumes of goods delivered to the market and the lack of freight consolidation effort in the system. The study on the active mode access of potential customers to both Farmers’ markets and supermarkets captured the interplay between freight and personal transport and is the final component of GAP. The results of the ArcGIS based model called ‘Active Mode Access’ or AMA demonstrated that both Farmers’ markets and supermarkets have the same level of accessibility for walking or biking customers. However, the calculations also showed that almost 87% of New Zealanders have no AMA to stores and are at risk for fuel price increase. Finally, the key result of this dissertation is the assessment that there is actually limited adaptive capacity of the freight transport and production system. This is due to network infrastructure and geographical constraints as well as commodity type and mode compatibility and other operational concerns. Due to these limitations, the GAP model assessed that reduction in energy and allowable emissions will ultimately reduce the amount of commodities moved in the system.

Many historically disadvantaged South Africans are entering into universities, where they are expected to perform academically not only to secure themselves a continued place at university, but also to secure themselves a place in the competitive job-market post university. Not only have these individuals been disadvantaged by an inferior schooling system, which is the legacy of apartheid, but they also struggle against the grasp of poverty, attempting to sustain themselves financially in order to afford the necessities for their survival, while still attempting to cope academically. Resilience has been presented as a process that helps individuals deal effectively with stressful events and adverse conditions. An attempt is therefore made to investigate whether resilience plays this role in the experience of disadvantaged students at university, where academic performance and adjustment represent the expected measures of coping. The aim of the study was therefore to explore the role of resilience constructs in the relationship between socio-economic and demographic variables and academic coping. The study is based within the broad framework of Psychofortology, which is the science of psychological strengths. The resilience constructs used included fortitude (measured by the Fortitude Questionnaire), hardiness (measured by the Personal Views Survey) and sense of coherence (measured by the Sense of Coherence Scale). Demographic variables included age, sex, language, town (urban/rural), with household income as an indicator of socio-economic status. Academic coping (outcome) was measured using students&rsquo / academic performance (average grade) and their adjustment to university (measured by the Student Adaptation to College Questionnaire). Participants included 164 third year Psychology students from the University of the Western Cape. Results indicate statistically significant relationships between various demographic and resilience variables / between various demographic and outcome variables / and between various resilience and outcome variables. Resilience variables were also found to play a role in the relationship between demographic and outcome variables, as various resilience variables emerged as significant predictors of outcome variables, or as having either direct, moderating, mediating or indirect effects on the relationship between demographic and outcome variables. Research suggesting the health-sustaining and stress-reducing (buffering) roles of resilience constructs, as well resilience constructs as influencing the perceptions of adverse conditions or stressors is therefore supported by these findings. Limitations of the study were also discussed, as well as recommendations for future research put forward.

There is disagreement in the literature about the relative roles of selection (competition) and adaptation in explaining industrial change. For some, the possibilities for adaptation by individual firms are highly limited, and instead the key drivers of industry-level change are the extinction of some firms and the birth of others. Others stress that survival is all about the ways in which a firm can choose to adapt to changes in the external environment and to changes in competition. This dissertation takes the view there is a false dichotomy between adaptation and selection, that they are not opposites and that adaptation is an essential an unavoidable part of any relevant evolutionary process. Even if selection generates larger industry-level outcomes, adaptability is still important. It is then an empirical matter of the relative strengths of adaptability and selection in particular circumstances. The work makes a clear distinction between an adaptation, a change to an individual (firm) that enables the individual to be better fitted to its environment, and adaptability, the potential to adjust to changes in the selection environment. In looking for causal explanations, the approach adopted here acknowledges that causes relate to potentialities or dispositions and not to effects or events. Using this approach, the adopted methodology maintains that business routines, even when defined as capacities or dispositions rather than behaviours, can still be measured and used to generate an adaptability instrument. It is then possible to look at the relationship between the adaptability instrument and survival. The research looks particularly at the adaptability and survival of small and medium size firms, as they constitute the majority of enterprises in the UK and are empirically under-represented in previous research. This thesis looks at the evolution of populations of such firms through the mix of firm-level adaptation and selection in the population. The methodology concentrated on the four constituent areas of any firm: sales and marketing, production, administration and human resources, and corporate strategy. It examined not the quantities of operation in routines as in many previous studies but the levels of adaptability firms perceive they actually achieve or believe they would experience in the face of both continuous and discontinuous internal and external change. The adaptability instrument is the composite measure of the potential to adapt routines across the four constituent areas, capturing a picture of the interactions between the strategies, structures and procedures within the firm. The methodology also involved a relatively large sample of observations of a representative set of small and medium-sized enterprises, addressing the lack of previous empirical work on datasets of a whole population of firms taken from multiple industries and sectors. It was also possible to re-sample respondents in the depths of a recession 18 months later in order to look at the relationship between previously calculated adaptability and the subsequent degree of survival. The results challenge the exclusive role of selection only in explaining industry attributes and suggest that adaptability is important for firm survival. Even if selection generates larger industry-level outcomes, adaptability is still important. The research demonstrates that both competitive selection and developmental adaptability combine to explain industrial change and that any differences in adaptability between firms are of significance. In a sharp recession, however, only the firms with more potential to adapt their output in response to falling demand, and so better protect their cash flow against any contracting credit availability, have an advantage relative to their rivals that can confer relatively greater longevity and survivability. Other factors contribute to survival more strongly in recession than in more stable times and, while adaptability still matters, the slightly lower adaptability of older cohorts of firms masks the positive value of adaptability. At the individual firm level during sharp recession, indirect competition through customers choosing not to spend, or spend scarce resources elsewhere, rapidly de-selects those with weak cash flow management, poor cash reserves or poor credit worthiness. The criteria adopted for degrees of failure were heavily dependent on the context of use but reflected common parlance among the survey respondents. The findings of this research point to the merits of a theoretical framework different from much textbook economics, strategy-choice theory and organisational ecology. The findings support an evolutionary approach that in turn corresponds with recent developments in the theoretical framework known as Generalised Darwinism.

Adaptation is one of the basic phenomena of biology, while adaptability is an important feature for neural network. Young barn owl can well adapt its visual and auditory integration to the environmental change, such as prism wearing. At first, a mathematical model is introduced by the related study in biological experiment. The model well explained the mechanism of the sensory map realignment through axongenesis and synaptogenesis. Simulation results of this model are consistent with the biological data. Thereafter, to test the model’s application in hardware, the model is implemented into a robot. Visual and auditory signals are acquired by the sensors of the robot and transferred back to PC through bluetooth. Results of the robot experiment are presented, which shows the SC model allowing the robot to adjust visual and auditory integration to counteract the effects of a prism. Finally, based on the model, a silicon Superior Colliculus is designed in VLSI circuit and fabricated. Performance of the fabricated chip has shown the synaptogenesis and axogenesis can be emulated in VLSI circuit. The circuit of neural model provides a new method to update signals and reconfigure the switch network (the chip has an automatic reconfigurable network which is used to correct the disparity between signals). The chip is also the first Superior Colliculus VLSI circuit to emulate the sensory map realignment.

The behavioral characteristics of leaders have been subjects of study for centuries. The scope of these studies has grown to encompass task analysis, follower needs and situational requirements. Current leadership theories consistently recognize the need for a successful leader to adjust behavior to meet the needs of the task, followers and situation. The problem of this research is to define this ability to modify one's behavior, measure it and test its relationship to demographic and job characteristics. The purpose of this study is to evaluate the correlation of individuals" ability to modify their behavior to job function, hierarchy, climate, feedback, satisfaction and their demographic characteristics. The hypotheses held that high ability to modify behavior would correlate positively with job characteristics, climate, feedback and satisfaction and show no correlation to individual demographics. Data were collected through the administration of three research instruments to 138 managers of three business firms. The instruments were the Participant Data Form providing job and demographic characteristics, Descriptive Adjective Questionnaire measuring an individual ability to modify behavior, and Climate and Satisfaction Evaluation Index measuring climate, feedback and satisfaction. Perason's correlation coefficients were calculated to identify possible relationship between the manager's ability to modify behavior, called versatility, and all other independent variables, and linear and multiple regressions were utilized to verify the relationship. No significant statistical correlation was found. Conclusions are that the ability of a manager to vary behavior does not influence job climate, feedback or satisfaction, that the versatile behavior is not derived from job or demographic characteristics, and that job satisfaction is directly and positively related to performance feedback and climate.

Recent research on the contribution of cognitive and social factors to psychopathology has been narrowly focused on isolated cognitive-social aspects of adjustment. This study takes a broader perspective by examining a) cognitive structure in addition to cognitive content and b) general aspects of interpersonal style rather than isolated social behaviors. Maladjustment was. examined with respect to premorbid history as well as current adjustment. The hypotheses were that cognitive integration interacts with cognitive complexity to influence psychological disturbance; that a positive relationship exists between interpersonal flexibility and psychopathology; and that a positive relationship exists between the proportion of ambiguous constructs which they employ and a person's level of psychopathology.

Religion and spirituality are vital aspects of many people’s lives both in the United States and across the globe. Although many constructs and measures exist to describe and assess the experience of pursuing the sacred, the complexity of religious and spiritual experience leads to mixed results in relation to well-being and psychopathological traits. However, in broad terms, the relationship appears positive. Over the past 30 years the need for more refined and useful approaches to the study of religious and spiritual behavior has been repeatedly acknowledged. Although authors wisely caution development of further measures without due cause, extant constructs and measures do not provide clear and consistent results for understanding the influence of one’s relationships to religion and spirituality upon behaviors of clinical interest. The present project drew from the functional contextual concept of psychological flexibility, which provides clarity to understanding the encouragement and maintenance of psychological well-being. A new construct of religious and psychological flexibility is explicated as a functional approach to understanding religious and spiritual behavior in a manner that is useful in research and clinical settings alike. The development and evaluation of the Measure of Religious and Spiritual Flexibility (MRSF) is described. The MRSF evidenced adequate internal consistency and test-retest reliability. Confirmatory factor analysis results were positive, but indicate further refinement. Analyses suggested good construct validity of the MRSF in relation to psychological well-being and psychopathology; construct validity in relation to extant constructs in the psychology of religion was varied. Implications and future directions are discussed.

Individual differences in temperament can be a risk or a protective factor for a child, especially for children at-risk who possess single or multiple risk factors that may interfere with their educational success and affect their healthy development and their life-long outcomes. This research study examined the concurrent and longitudinal relationships between temperament, school adjustment, and academic achievement in children at-risk. Seventy-seven children, ages five to 11 years, were reassessed two years after an initial study. Their teachers completed the Temperament Assessment Battery for Children (TABC), the Behavior Assessment System for Children (BASC), and reported on the children's academic achievement. The results for the concurrent relationships showed significant relationships between the children's temperament and their school adjustment; negative emotionality significantly correlated with and predicted school adjustment. Children's temperament was also found to have a significant relationship with academic achievement; persistence and activity level had significant correlations with academic achievement. Persistence, however, was the only predictor of academic achievement. In contrast, the longitudinal relationship between the children's temperament and their educational outcomes in terms of both school adjustment and academic achievement showed no significance. The concurrent relationships were found to be consistent with previous research; whereas the longitudinal relationships were found to vary from previous research. Implications for practice and considerations for future research directions are discussed.

Through the development and design of a Mobile Exhibition System (MES) in this thesis, I will demonstrate the benefits and possibilities of a flexible and mobile system within an exhibition environment. A flexible system will be able to adapt to a wide range of content, while at the same time, maintaining a synergy between its form and function. By the reuse and reappropriation of shipping containers as the exhibition envelope, the goal of mobility can be achieved, reaching out to those who might not otherwise experience learning through an exhibition environment.