The importance of the electric power infrastructure has been exposed by several blackouts throughout the world in the last decade. These blackouts were caused mainly by physical vulnerabilities, human errors and natural disasters. The power grid is becoming more and more prone to outages which affect not only the power system network, but also other infrastructures and the society in several ways. Utilities generally operate with an (N-1) security level (no violations for single outage), and blackouts are generally caused by higher order contingencies. There is lack of effective methods and analysis tools to deal with higher order contingencies. Higher order contingences include multiple line outages, multiple generator outages or a combination of both. This research work focuses on developing tools to take corrective actions based on sensitivity for these multiple outages. Algorithms developed are Multiple Line Outage Bus Sensitivity Factor (MLOBSF), Multiple Line Outage Voltage Sensitivity (MLOVS), Multiple Generator Outage Bus Sensitivity Factor (MGOBSF) and Multiple Generator Outage Voltage Sensitivity (MGOVS) algorithms based on DC and AC load flow models. These developed algorithms provide the impact on the system due to multiple contingencies and help the operator at the control center to take corrective actions in a quick and effective way. These developed algorithms were tested on three test systems; the six buses, thirty seven buses and the 137 buses actual utility test case. The test results demonstrate that given situational awareness the algorithms provide additional decision support that can be used for remedial actions and/or for recovery after an outage. Integrating these into a power system energy management system (EMS) will provide a tool for operators to have a better understanding of the system before and during an extreme condition.

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The thesis is about an urban bathhouse in Suzhou, China that explores the relationship of the time honored traditions with modern customs and building techniques. Traditional bath house in memory is always crowded, confined, dim and toneless. The project seeks a new possibility for a modern bath house by studying the structural order and light quality, to make the bath house not only a place for body hygiene, but also a place for mind relaxation and rejuvenation. / Master of Architecture

Agritourism in Virginia is a rapidly growing industry that adds additional income to a farming operation, and helps mitigate risk. Therefore it has become a good strategy for farmers to generate higher levels of profit, but much of the literature in Virginia and surrounding states focuses more on the motivations of operators for starting their agritourism venture. Thus, the purpose of this paper is to empirically analyze demographic, operational, and financial factors and evaluate their correlation with higher levels of profit. The first step was to apply key factors in industrial location discussed by Sloagett and Woods (2003) to agritourism in Virginia. Next, a survey was conducted to produce primary source data on Virginia agritourism operators and how these success factors relate to their ventures. Initial findings suggest a very homogenous demographic amongst operators. In addition, there were four other main findings. First, promotion is highly important and there is a need for increased road signage in Virginia. Second, additional income is a large motivator among operators and 76% of operations indicated their business was somewhat profitable. Third, those near the metropolitan areas of Virginia Beach, Roanoke, and Washington, D.C. tended to have the highest perceived profitability. Finally, operators are highly afflicted by obstacles such as road signage, finding qualified employees, and taxation, all of which can be addressed or mitigated by the state government. The final portion of this paper tests the relationship between these factors and profitability of agritourism operations in Virginia. The empirical results reveal that those operators with a motivation for addition income and higher levels of education, with more acreage, with a higher percentage of their gross farm income attributed to agritourism, and those, on average, that have greater money spent per visitor all correlate with higher levels of profit. On the other hand, the following characteristics appear to have a negative effect on agritourism profits: wineries, greater estimated time to the nearest interstate and difficult access to capital. Assuming operators of agritourism venues seek to maximize profits, these findings illustrate to current and future operators how to adjust procedures and improve their business strategies. / Master of Science

Thesis (Ph. D.)--University of Hawaii at Manoa, 1982. Bibliography: leaves 233-247.

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Study question: How can the process for article classification and procurement be improved in a new implementable inventory policy with the objective to reduce inventory costs. Purpose: The purpose of this degree project is to design a procurement policy which helps to minimize the annual capital tied up in inventory. Method: The procurement policy is created by a mixed method with a focus on the quantity inputs of secondary data and minor involvements of qualitative from primary data. Inventory management formulas from the theoretical framework constitute the conducted model. With the ground work from theory and inputs from interviews, the research approach has been deductive and followed the guidelines of Ali and Birley (1999). ABB Capacitors is the case study of this degree project which the model has been tested and verified upon. Conclusion: The degree project resulted in procurement policy which includes a calculation model and inventory analysis which has shown success from the theoretical comparisons, and it indicates that the procurement policy is functioning as intended. Mathematical formulas are mere tools in a procurement policy, experience and know-how are two pieces which importance should not be neglected.Weaknesses of this policy concern inventory capacity because the calculations’ purpose is to minimize inventory cost by procuring to an economic optimum. There is a chance that physical structure allows fewer quantities than what is financially best. The policy is recommended for manufacturing industries. / Frågeställning: Hur ska artiklar till lagret köpas in och klassificeras i en ny inköpsstrategi med målet att minska lagerkostnaderna och minimera lagernivåerna till givna förutsättningar. Syfte: Syftet är att ta fram en inköpspolicy som ska minimera årliga kapitalbindningen i lagret. Metod: Inköpspolicyn är utvecklad med hjälp av en blandad metod med fokus på den kvantitativa sekundärdatan med små delar av den kvalitativa primärdatan. Beräkningsmodellen består av de lagerstyrningsformler som presenteras i teorin. Med grunden från teorin och inläggen från intervjuer har forskningsmetoden varit deduktiv och följt riktlinjerna från Ali och Birley (1999). ABB Capacitors är fallstudien för detta examensarbete som modellen har blivit testat och verifierad hos. Slutsats: Examensarbetet resulterade i inköpspolicy som består av en beräkningsmodell och en artikelanalys som har visat sig framgångsrik från de teoretiska jämförelserna och det visar på att inköpsstrategin fungerar som tänkt. Matematiska modeller är bara verktyg i en inköpsstrategi, erfarenhet och kunnande är två komponenter vars betydelse inte ska förminskas. Svagheter i modellen rör kapaciteten i lagret eftersom modellens syfte är att minimera årliga lagerkostnaden genom att köpa in ur en ekonomisk synvinkel. Det finns en risk att den fysiska lagerytan tillåter mindre kvantiteter än vad som är optimalt. Modellen rekommenderas för tillverkande industrier.