Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2004.
Includes bibliographical references (p. 52-55).
Low concentrations of xenobiotic chemicals ...have recently become a concern in the surface water environment. The concern expands to drinking water treatment processes, and whether or not they remove these chemicals while going through the treatment plant. In this study, the concentrations of organophosphoric acid triester flame retardants tributyl phosphate, tri(2-chloroethyl) phosphate, and ethanol, 2-butoxy-, phosphate (3:1) were measured after major treatment processes at the Chattahoochee Drinking Water Plant in Atlanta, Georgia, USA. The findings indicated significant removal of all three organophosphate triesters after the pre-treatment chemical addition of sodium hypochlorite. The interaction of sodium hypochlorite and organophosphate triesters, through oxidation, was suspected to be the reason for the removal. Second, the concentrations of tri(2-chloroethyl) phosphate after the filtration stage and at the clearwell were much greater than values after the sedimentation stage, and were well above the concentration measured at the intake. Exposure to the chemicals within the treatment plant was the chief potential reason for the heightened concentrations.
by Joseph C. Lin.
M.Eng.
Summary
The Sierra Leone Police Force has its origins in the British colonial administration of the country. After Independence and with the consolidation of one‐party rule the force slid into ...disrepute. The outbreak of civil conflict in 1991 largely decimated the force but the gradual restoration of peace provided an opportunity for police reform. This research report covers the aspects of the political and institutional environment that helped engender change, as well as constraints faced by the reform agenda. It considers how the officers actually carried out the task at hand, and shares lessons as to what reform tactics worked and which were less successful. While several challenges remain, the reform programme, centred around local needs policing has been largely successful, hinging on – among other factors – the appointment of a British Inspector General of Police, perceived to be neutral and above political machinations, supported by a core of reform‐minded officers; long‐term external technical and financial assistance; and a conducive political environment for change.
This study aims to examine the influence of organizational culture and work ethic on the performance of employees of PT Muara Krakatau in Tengaran District, Semarang Regency. Respondents in this ...study were employees of the sewing section of PT. Muara Krakatau, Semarang Regency, totaling 90 employees. The method used to obtain information data is through a questionnaire. The analytical technique used in this research is multivariate regression analysis. The results showed that there was a positive influence of organizational culture and work ethic on the performance of employees of PT. Muara Karang. It is suggested that to improve employee performance the company must improve organizational culture and work ethic.
Data analytics is the science of analyzing raw data to make conclusions about that information. This is a process of inspecting, cleaning, transforming and modeling data with the goal of discovering ...useful information, conclusions and decision making. Application of data analytics can be used to enable organizations, optimize operation and decision making. It plays a vital role in finance, healthcare, human resources, and GPS systems. They faced a lot of problems in data quality, privacy and security, lack of skill, infrastructure and scalability. In the future, big data analytics will increasingly focus on data freshness with the goal of real-time analysis, machine learning integration, NLP and cognitive analytics. The final inference is drawn from the data analysis, review of literature, and finding.
This paper focuses on the bit lines in the design of a single-poly flash memory cell during program operation. A conventional flash memory cell uses a floating gate transistor where an extra layer is ...added between the gate and substrate of the standard MOSFET. This incurs additional process step during fabrication, increasing the cost of the design. The single poly embedded flash memory cell is quite an attractive solution for non-volatile memory applications since it doesn't require any additional process steps. A 5T single-poly flash memory cell was implemented under TSMC 65nm CMOS Process. During program mode of a single-poly flash memory, all the pull-up PMOS of every single cell are turned on even if some of the cells are not to be programmed, causing a short path between the source and ground thus generating static power dissipation. In this paper, power gating technique was being applied to the bit lines. The size of the PMOS were taken for both design and it was found out that in power-gated, the size of the PMOS didn't really affect the power dissipated. The results from comparing each design showed that with power gating method, the static power dissipation was transformed into dynamic power dissipation, reducing power consumption by about 80%. The cell's dimensions are 14.015 µm x 1.930 µm, achieving an area of 27.05 µm 2 .
Comparative Analysis on Unreal Engine 5 VS Unity Abhishek. S; Ashwin Varghese; Ayibel Thomas ...
international journal of engineering technology and management sciences,
2023, Letnik:
7, Številka:
4
Journal Article
Odprti dostop
Unreal Engine 5 and Unity are two popular game development engines widely used in the industry. This research paper presents a detailed comparative analysis of Unreal Engine 5 and Unity, aiming to ...provide comprehensive insights into their features, performance capabilities, and suitability for game development. Through an in-depth examination of these engines, this study highlights their similarities, differences, and factors that influence their adoption in the game development landscape.
Many forest-dependent communities in British Columbia continue to make the transition away from a heavy economic reliance on the forest sector to a more diversified economy. Although some communities ...are succeeding with this transition, many are not. To better understand why this is happening, we reviewed the literature on “community resiliency.” This concept has emerged as the focus of those concerned with the sustainability of communities dependent on natural resources. From the literature review, we identified 15 resiliency factors that contribute to successful transitions. Many of these are related to resources (e.g., financial and natural resources, human and social capital) and power (e.g., local control over enterprise and policy). Some factors may require development (e.g., attitude and high quality planning), while others may require creative and innovative solutions (e.g., geography and availability of natural resources). For communities undergoing transition, we recommend that decision makers and community leaders assess their community’s resiliency by examining these 15 factors. We suggest that all resiliency factors contribute to successful transitions. Attention to some factors at the expense of others may be a poor strategy for successful transitions. We also present examples of indicators that could be used to assess community resiliency and provide guidance on selecting and constructing indicators. Most of the identified resiliency factors relate to adaptability. Sustaining forest-dependent communities is primarily about accepting change and addressing it through adaptation. We therefore suggest that rural communities in British Columbia focus more on enhancing their adaptive capacity.
Mixed Hodge Structures Peters, Chris AM; Steenbrink, Joseph HM
2008, 2008-02-25, Letnik:
52
eBook
This is comprehensive basic monograph on mixed Hodge structures. Building up from basic Hodge theory the book explains Delingne's mixed Hodge theory in a detailed and exhaustive fashion. Then both ...Hain's and Morgan's approaches to mixed Hodge theory related to homotopy theory are sketched. Next comes the relative theory: variations of Hodge structures, the limit mixed Hodge structure, and then, in the final chapter the all encompassing theory of mixed Hodge modules. The book is interlaced with chapters containing applications. Three large appendices complete the book.
Approved for public release; distribution unlimited.
Increasing budgetary constraints have prompted actions to reduce the maintenance cost of current naval aircraft. This thesis examines the Aircraft ...Engine Component Improvement Program (CIP), its impact on these cost at the organizational and intermediate levels of maintenance, and savings from these improvements. The objectives of the research were to identify current life cycle cost (LCC) models used by the Navy andor the other services to determine CIP benefits, to validate on-going LCC-oriented computer program. This thesis is organized into areas covering CIP objectives and considerations, system effectiveness, reliability, LCC and related data and models, aircraft data used for LCC, CIPLCC computer models, return on investment (ROI) analysis program of the F-14A TF30-P-414A engine improvement, conclusions and recommendations. Based on the ROI analysis and ECIFR reports, the engine improvement program has been cost effective.
Thesis (M.S. in Science in Management)--Naval Postgraduate School, December 1990.
Thesis Advisor(s): Moore, Thomas P. Second Reader: Crawford, Alice. "December 1990." Description based on title ...screen as viewed on April 01, 2010. DTIC Descriptor(s): Aircraft engines, life cycle costs, maintenance, computerized simulation, organizations, costs, aircraft equipment, naval aircraft, reliability, theses, aircraft, cost effectiveness DTIC Identifier(s): Return on investment, engine Component Improvement Program(CIP) Author(s) subject terms: Aircraft engine cost; lifecycle cost; return on investment; engine Component Improvement Program (CIP) Includes bibliographical references (p. 111-113). Also available in print.
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