Thesis Abstract Current Nuclear Power Plant (NPP) design does not account for Beyond Design Basis Events (BDBEs) and thus lack the provisions to effectively mitigates complete loss of AC power and total loss of heat sink. Furthermore, parametric models used in PRA studies to assess Nuclear Power Plant’s safety risk for BDBE and External Events (EE) have significant limitations and proved ineffective to provide solutions on how to mitigate in BDBE or EEs situations. The Fukushima accident is a good example where PRA assessments did not provide the necessary means to cool or contain the reactors effectively. In this thesis, Emergency Mitigation Preparedness (EMP) model and assessment is proposed. The EMP model is objective and practical in evaluating NPP’s mitigation readiness in BDBE and EEs situations and provide a practical NPP Vulnerability indicator gauge which can potentially be used in risk-informed decisions. This will aid further in the NPP to improve in areas of emergency planning, enhance site and reactor design and improve workers safety and readiness to execute effective mitigation procedures and emergency plans. / Thesis / Master of Engineering (ME)

Disruptive innovation pertains to a process wherein a modest idea can grow and transform the entire landscape among established companies within the same industry. While this type of innovation has the potential to revolutionize markets and industries, it also presents challenges, particularly in securing funding. Financing disruptive companies can be a difficult endeavor as they may be challenging to comprehend and assess. Traditional financiers may not recognize the potential in these ideas and may be reluctant to risk their resources on what may appear to be uncertain ventures. Thus, the question arises whether the financing process for entrepreneurs engaging in disruptive innovation differs from that of other entrepreneurs. The purpose of this study is to observe the factors that influence disruptive entrepreneurship and how they are reflected in the financing process. Empirical findings were analyzed alongside theoretical findings. The results indicated that external financing capable of primarily providing knowledge was valued more highly than external financing that could only offer capital. / Disruptiv innovation handlar om en process där en liten idé kan växa och förändra hela spelplanen bland etablerade företag inom samma bransch. Denna typ av innovation har potentialen att revolutionera marknader och industrier. Men med disruptiv innovation kan det också uppstå utmaningar, särskilt när det gäller att hitta finansiering. Att finansiera disruptiva företag kan vara en svår uppgift eftersom de kan vara svåra att förstå och värdera. Traditionella finansiärer kanske inte inser potentialen i dessa idéer och kan vara ovilliga att riskera sina pengar på vad som kan verka vara osäkra satsningar. Det kan således ifrågasättas huruvida finansieringsprocessen för entreprenörer som ägnar sig åt disruptiv innovation skiljer sig från andra entreprenörer. Syftet i denna studie är att se vad som har en inverkan på disruptivt entreprenörskap och hur det speglas i finansieringsprocessen. Empiriska fynd analyserades med teoretiska fynd och resultatet visade att extern finansiering som kunde bidra med främst kunskap värderas högre än extern finansiering som bara kunde erbjuda kapital.

The improvement of SISP practices has rapidly become one of the most critical issues facing many organisations, including banks. Globally, the banking sectors, including the Saudi one, have developed and implemented many IS strategies. Several systems have been executed to support the countries’ economies which have benefited from the increased trading resulting from the greater flexibility in time and costs associated with banking transactions. To continue these achievements and to improve SISP processes, several factors require careful investigation based on their relationship to SISP success; which include SISP objectives, SISP internal factors, external consultant functions, SISP external factors, measurements of SISP success, key stakeholders’ roles, and triggers. Therefore this study investigates the impact of these factors on SISP success. Data were collected in three phases. Phase 1 was an initial study with one or two interviews with the IT directors of each bank in the Saudi banking sector comprising the central bank and 11 commercial banks. The outcomes informed the development of a survey that was used in Phase 2; to investigate a sample containing a central bank, a domestic commercial bank and a domestic-foreign commercial bank to determine their SISP processes. 157 completed questionnaires were returned from the bank executives, business and IT directors and consultants. In Phase 3, 57 interviews confirmed and explained the quantitative results from Phase 2. Therefore, an in-depth case study was made in the three banks during Phases 2 and 3. The research results support previous findings on the SISP’s seventeen objectives collected by several researchers across different industries and in various countries. Furthermore, the research condenses these seventeen objectives into five more practical and achievable objectives for the banking sector. These are: 1) planning and deployment of information systems; 2) leading organisation changes; 3) improving stakeholders’ involvement and communication; 4) achieving the strategic priorities; and 5) alignment of organisational policies and architecture for business and IS. In addition, the findings identify the factors according to their relationship with SISP success and therefore explore several elements with positive, negative or no impact on SISP success in the banking sector. The thesis presents conclusions and suggests areas for further research.

<p>Over the past few years various successful miniaturization attempts of External Cavity Semiconductor Lasers (ECSL) were published. They built upon the rich literature of ECSL configurations that were extensively analyzed and improved upon since the 1960s. This was merged with the microfabrication techniques of 3D structures based on MEMS technology. The main drive for miniaturizing such tunable lasers in the recent past was the huge potential for such devices in all optical networks specifically as signal sources that enable Wavelength Division Multiplexing (WDM).<br />This thesis compares the different configurations chosen to build tunable lasers using MOEMS technology. Our criteria of comparison include wavelength tuning range, side mode suppression, tuning speed and device dimensions. Designs based on the simple ECSL with a movable external mirror suffered from the tradeoff between tuning range and Side Mode Suppression SMS. To overcome this limitation most designs adopted grating based tuning using the Littrow or Littman/Metcalf configurations. These configurations allow for much better tuning results but don’t lend themselves easily to miniaturization. The grating based devices were bulky and quite complicated to realize.<br />We propose the adoption of the Zhu/Cassidy double external cavity configuration. It retains the simplicity of the single external mirror configuration along with the tuning range and the SMS of including multiple tuning elements. In its original form this configuration suffered from mode hopping within the tuning range. Thorough simulation, design and experimental evidence is presented in this work to show that by extending the configuration to allow full control over both optical tuning elements this drawback can be eliminated.<br />Our proposed design would reduce the form factor to < 300μm x 200μm x 200μm. The voltage required to tune through all the modes is < 40V and the resonant frequency of the mirror is in the 10s of MHz order of magnitude. When coupled with a multimode laser of a sufficiently broad lasing profile this setup should enable a tuning range > 72nm with a SMS >20dB.</p> / Master of Applied Science (MASc)

Automated vehicles (AVs) will be integrated into our society at some point in the future, but when is still up for debate. An extensive amount of research is being completed to understand the communication methods between AVs and other road users sharing the environment to prepare for this future. Currently, researchers are working to understand how different forms of external communication on the AVs will impact vulnerable road user (VRU) interaction. However, within the last 10 years, VRU casualty rates have continued to rise for all classifications of VRUs. Unfortunately, there is no suggestion that pedestrian fatality rates will ever decrease without some intervention. This dissertation aims at understanding the impacts of eHMI across real-world, complex scenarios with AVs and how researchers can apply those future findings to improve VRUs' judgments to today. A series of studies evaluated the necessity and impact of eHMI on AV–VRU interaction, assessed how the visual components of eHMI influenced VRU crossing decisions, and how variations in a real-world environment (multiple vehicles and scenario complexity) impact crossing decision behavior. Two studies examined how eHMI will impact future interactions between AVs and VRUs. Specifically, to understand how to advance the design of these future devices to avoid unintended consequences that may result. Results from these studies found that the presence and condition of eHMI did not influence participants' willingness to cross. Participants primarily relied on the speed and distance of the vehicle to make their crossing decision. It was difficult for participants to focus on the eHMI when multiple vehicles competed for their attention. Participants typically prioritized their focus on the vehicle that was nearest and most detrimental to their crossing path. Additionally, the type of scenario caused participants to make more cautious crossing decisions. However, it did not influence their willingness to cross. The last study applied the learnings from the first two studies to a foundational perception study for current legacy vehicles. These results showed a significant increase in judgment accuracies with a display. Through analysis across overall conclusions from the 3 studies, five critical findings were identified when addressing eHMI and 3 design recommendations, which are discussed in the penultimate section of this work. The results of this dissertation indicate that eHMI improved VRUs' accuracy of perception of change in vehicle speed. eHMI did not significantly impact VRUs crossing decisions. However, the complexity of the traffic scenarios affected the level of caution participants exhibited in their crossing behavior. / Doctor of Philosophy / An extensive amount of research is being completed to understand the communication methods between AVs and other road users sharing the environment to prepare for this future. Currently, researchers are working to understand how different forms of external communication on the AVs will impact vulnerable road user (VRU) interaction. However, within the last 10 years, VRU casualty rates have continued to rise for all classifications of VRUs. Unfortunately, there is no suggestion that pedestrian fatality rates will ever decrease without some intervention. This dissertation aims at understanding the impacts of eHMI across real-world, complex scenarios with AVs and how researchers can apply those future findings to improve VRUs' judgments to today. A series of studies evaluated the necessity and impact of eHMI on AV–VRU interaction, assessed how the visual components of eHMI influenced VRU crossing decisions, and how variations in a real-world environment (multiple vehicles and scenario complexity) impact crossing decision behavior.

There are theoretical and methodological difficulties in measuring the concepts of quality of care and patient satisfaction, and the conditions associated with these concepts. A theoretical framework of patient satisfaction and a theoretical model of quality of care have been used as the theoretical basis in this thesis. Aim. The overall aim was to describe and explore relationships between person-related conditions, external objective care conditions, patients’ perceptions of quality of care, and patient satisfaction with care in hospital. Methods. Quantitative and qualitative methods were used. In the quantitative study (I-III), 528 patients (83.7%) from eight medical, three surgical and one mixed medical/surgical ward in five hospitals in Norway agreed to participate (10% of total discharges). Data collection was conducted using a questionnaire comprising four instruments: Quality from Patients’ Perspective (QPP); Sense of Coherence scale (SOC); Big Five personality traits – the Single-Item Measures of Personality (SIMP); and Emotional Stress Reaction Questionnaire (ESRQ). In addition, questions regarding socio-demographic data and health conditions were asked, and data from ward statistics were included. Multivariate statistical analysis was carried out (I-III). In the qualitative study 22 informants were interviewed (IV). The interviews were analysed by conventional content analysis. Main findings. Patients’ perceptions of quality of care and patient satisfaction ranged from lower to higher depending on whether all patients or groups of patients were studied. The combination of person-related and external objective care conditions explained 55% of patients’ perceptions of quality of care (I). 54.7% of the variance in patient satisfaction was explained, and the person-related conditions had the strongest impact, explaining 51.7% (II). Three clusters of patients were identified regarding their scores on patient satisfaction and patients’ perceptions of quality of care (III). One group consisted of patients who were most satisfied and had the best perceptions of quality of care, a second group of patients who were less satisfied and had better perceptions, and a third group of patients who were less satisfied and had the worst perceptions. The qualitative study revealed four categories of importance for patients’ satisfaction: desire to regain health, need to be met in a professional way as a unique person, perspective on life, and need to have balance between privacy and companionship (IV). Conclusions. Patients’ perceptions of quality of care and patient satisfaction are two different concepts. The person-related conditions seem to be the strongest predictors of patients’ perceptions of quality of care and patient satisfaction. Registered nurses need to be aware of this when planning and conducting nursing care. There is a need of guidelines for handling over‑occupancy, and of procedures for emergency admissions on the wards. The number of registered nurses on the wards needs to be considered. Healthcare personnel must do their utmost to provide the patients with person‑centred care.

Play is one of the effective ways of assisting children to deal with their emotional problems in therapy. There are many methods and techniques that are scientifically proven that are used in play therapy. There are some indigenous types of play that have not yet been scientifically proven to be therapeutically effective. Mmaskitlane is one of these indigenous plays. The motivation of this study was firstly, to make a literature study against which Mmaskitlane was compared to commonly used play techniques. Then an empirical study was done to explore the therapeutic effects of the play. It was used in combination with the Children Apperception Test (CAT), Draw a Person (DAP) and the Rational Emotive Therapy (RET), during play therapy with learners experiencing emotional problems. The findings from this study indicate that the use of Mmaskitlane may be a valuable therapeutic tool in supporting learners with emotional problems. / Psychology / M. Ed. (Guidance and Counselling)

ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada / The focus of this paper is to describe a unified methodology for developing both internal and external data display translators between an Instrumentation Support System (ISS) format and Data Display Markup Language (DDML), a neutral language for describing data displays. The methodology includes aspects common to both ISSs that have a well documented text-based save format and those that do not, as well as aspects that are unique to each type. We will also describe the means by which an external translator can be integrated into a translator framework. Finally, we will describe how an internal translator can be integrated directly into the ISS.

It is commonly known that water plays a crucial role in many natural and industrial processes. One of these processes is the formation of water trees, and the subsequent breakdown of polyethylene used for high voltage cable insulation purposes. It has been shown that the mechanism for water molecules diffusing through amorphous polyethylene includes the formation of small water clusters. Gibbs Ensemble Monte Carlo molecular simulations has been performed to study the clustering of vapour phase water under vapour - liquid equilibrium conditions at temperatures ranging from 300 K to 600 K. The increase in vapour density with increasing temperature leads to a radical increase in the fraction of molecules belonging to clusters with two or more water molecules. It is also seen that the size of the clusters increases with temperature. The topologies of the smaller clusters, up to pentamers, have also been studied. A structural transition is observed from a large percentage with cyclic topology, which is the minimum energy configuration, at lower temperatures to predominantly linear clusters, favoured by entropic effects, at higher temperatures. Similar water properties have been obseved in simulations where the vapour phase has been replaced with a hydrocarbon rich phase ( n-alkanes and polyethylene ). Application of an external electric field to the polymer system reduces the water solubility and affects the water structure. A dramatic increase in water solubility in the hydrocarbon phase is observed when two oppositely charged ions are introduced in the hydrocarbon. The structure of the water have changed from several small clusters to a single large cluster with a rod-like shape. The cluster is extremely stable during the simulation. Application of an external electric field may enhance or reduce the effect of the ions depending on the direction of the field. Based on these observations is an alternative mechanism for water tree propagation proposed.

Motivation: In the Sub-Saharan Africa countries there are several factors contributing to the collapse of firms. Most firms have failed due to poor corporate governance practices. The recent collapse of some firms in the financial and non-financial sectors in the Sub-region shows that there are challenges hindering effective corporate governance of firms in the Subregion. Consequently, this study uses empirical evidence to identify views about the important components of good corporate governance practice for listed firms: institutional characteristics; the board of directors; and the effects of external factors. Research question: The pertinent research question that this study addresses is the identification of the components that are essential for good corporate governance of firms in the Sub-region. This study tries to prioritise the components. Methodology: Data were collected by questionnaire administered to stakeholders of corporate governance of listed firms in Ghana, Nigeria and South Africa. Regression is used to estimate the relationship between institutional characteristic, responsibilities of the board of directors and external factors on corporate governance system. Main findings: 1. Enforcement, disclosure, transparency and regulatory frameworks may be necessary to improve corporate governance practice in all the countries in the Sub-region (SSAA). 2. There is evidence that commitment of board members to disclosure and communication may provide effective corporate governance practice. 3. Board duality (separation of role between chairman and CEO) is likely to hinder corporate governance practices. 4. We found that in all the countries in the Sub-region accounting system plays a major role to promote sound corporate governance practice. However, the political environment, societal and cultural factor, corruption, and economic factors such as macro-economic policies may hinder corporate governance practices.Policy recommendations: This study recommends that corporate governance stakeholders should adopt a whistle blowing method and also that institutional bodies should be more prudent in monitoring of rules and laws with stringent penalties. In addition, there should be adequate information and disclosure on the rights and obligation of the shareholder of firms in the sub-region region. There is need to increase the number and role of independent directors, increase the use of advisory vote by shareholders on executive compensation and facilitation of shareholders activism. Furthermore, there is a need to have autonomous regulatory bodies and supervisory agencies free from any political/ government interference in the implementation of the Code and Guideline of corporate governance. The regulatory bodies and the supervisory agencies should be manned or be under the leadership of people of goodwill, good character and trust. The Code or Guideline of corporate governance of Sub-Saharan Africa Anglophone countries should take cognisance of and be aligned with socio-cultural environment of the countries in the Sub-region.