The Theory of Elective Affinities in the Dramatic Love Poems of Robert Browning

Whether on the level of erotic love or on the higher plane of spiritualized love, Browning appears to feel a man and woman who fall in love are actually drawn together by a force over which they have little or no control

Automated flight test management system

The Phase 1 development of an automated flight test management system (ATMS) as a component of a rapid prototyping flight research facility for artificial intelligence (AI) based flight concepts is discussed. The ATMS provides a flight engineer with a set of tools that assist in flight test planning, monitoring, and simulation. The system is also capable of controlling an aircraft during flight test by performing closed loop guidance functions, range management, and maneuver-quality monitoring. The ATMS is being used as a prototypical system to develop a flight research facility for AI based flight systems concepts at NASA Ames Dryden

A study of the correlation potential of the optimum moisture content, maximum dry density, and consolidated drained shear strength of plastic fine-grained soils with index properties

The correlation potential of the compaction properties and the consolidated drained shear strength parameters of plastic fine-grained soils with index properties was investigated in this study. The interrelationships of these properties were derived through graphical and multilinear regression analysis. The compaction properties, optimum moisture content, and maximum dry density were found to be related to many of the index properties. The most important relationships were with the plasticity indices and the percentage of particles smaller than two microns; the highest degree of simple correlation was achieved with the liquid limit. The consolidated drained shear parameters, cohesion, and the angle of internal friction were correlated with many of the index properties; however, the magnitude of the computed correlation coefficients were not indicative of a high degree of correlation. The correlation of the shear parameters with the plasticity index was the most significant. Many useful equations and graphical procedures for rapidly predicting the compaction and shear parameters from index properties have been developed. The accuracy of these equations and graphical procedures has been evaluated herein and found to be sufficiently accurate for most prediction situations. Through varied data considerations, it was determined that the best approach to accurate correlation would be to restrict the analyses to soils of similar origin or to those of a limited geographic area, in lieu of focusing upon soils of varied origin as a unit. The investigator is hopeful that this fact and other facts brought out herein will prove useful to those attempting similar studies in the future --Abstract, page ii

From an automated flight-test management system to a flight-test engineer's workstation

The capabilities and evolution is described of a flight engineer's workstation (called TEST-PLAN) from an automated flight test management system. The concept and capabilities of the automated flight test management systems are explored and discussed to illustrate the value of advanced system prototyping and evolutionary software development

Exploring Discretionary Practices of Civilian Police Officers During Traffic Stop While Working in a Military Community

The individuals who reside in military communities must abide by the rules of both the military and the civilian communities. When an individual is stopped for a traffic violation in a military community, their driver’s license is requested but the military- affiliated personnel often present their military identification card also. Some may expect leniency due to their military affiliation while others do not. However, there are no studies covering police discretion in a military community during traffic stops. Using social stratification theory, the purpose of this study was to understand officers’ perspectives on discretion during traffic stops and how their choices are made. During this qualitative single-subject case study, 17 police officers from four different jurisdictions surrounding a military base were interviewed based on the social stratification theory. The results of this analysis indicated that the police officers are given a limited amount of discretion which was supported by the written guidelines that suggested everyone is to be treated equally. The repeating themes that continued included discretionary decisions, policy guidelines enforcement, and the individual discretionary choices that officers make. Positive social changes dictated that impartiality is the equality of all regardless of gender, race, profession, or economic status

The use of an automated flight test management system in the development of a rapid-prototyping flight research facility

An automated flight test management system (ATMS) and its use to develop a rapid-prototyping flight research facility for artificial intelligence (AI) based flight systems concepts are described. The ATMS provides a flight test engineer with a set of tools that assist in flight planning and simulation. This system will be capable of controlling an aircraft during the flight test by performing closed-loop guidance functions, range management, and maneuver-quality monitoring. The rapid-prototyping flight research facility is being developed at the Dryden Flight Research Facility of the NASA Ames Research Center (Ames-Dryden) to provide early flight assessment of emerging AI technology. The facility is being developed as one element of the aircraft automation program which focuses on the qualification and validation of embedded real-time AI-based systems

Structural Optimisation of Offshore Direct-Drive Wind Turbine Generators Including Static and Dynamic Analyses

One way to achieve increased wind capacity is by installing larger and more efficient wind turbines, which results in larger/heavier generators. Direct-drive, permanent magnet generators are favoured due to their increased efficiency, but the added weight is an issue, as this drives up the cost of the nacelle and turbine support structure, along with increasing the manufacturing and installation costs. Therefore, minimizing the mass, particularly the structural mass, of these low speed generators is becoming much more important. A vast amount of research has been done on trying to reduce the electromagnetically 'active' materials, but it is the supporting structure or 'inactive' materials, that makes up the biggest percentage of the generator's mass. Therefore, this paper studies the statics and dynamics of a large offshore direct-drive generator's supporting structure and the opportunities for light-weighting, as well as improvements to the generator's rotor structure through structural optimisation. The indicator for optimised design is system weight under each predefined scenario. These scenarios will cover different design considerations of the generator's rotor structure

Development of a vulnerability map of wind turbine power converters

Abstract: With the amount of turbines that are already installed and that are planned to be installed in order to meet all the carbon emission objectives set by Governments worldwide, a means of producing a way to determine and highlight weak links or components that are more likely to fail would be extremely beneficial. One way to do this is via vulnerability maps. This paper looks at producing a vulnerability map for the power converter of a wind turbine using maintenance reports. The vulnerability map is a useful means to identify which sub-systems/components to consider when determining lifetime extension of wind turbine drivetrains. All the components that were either replaced or repaired are grouped together to determine their failure rates. Their rates are then ranked from highest to lowest and each component that makes up a typical power converter diagram coloured according to its failure rate, from red for the highest, through to orange, yellow and green for the lowest. The results show that there are three clear components that failed more often than the rest. An additional analysis looks at whether the location of the turbines alter the vulnerability map and this is confirmed. Although the same three components have the highest failure rates, their values change according to which country they are installed

Life extension of wind turbine drivetrains by means of SCADA data : case study of generator bearings in an onshore wind farm

Accurate predictions for remaining useful life (RUL) of wind turbine drivetrains are crucial in reducing downtime, optimising maintenance strategies, extending operational life and improving costs. The purpose of this study is to present a method which utilises SCADA data for RUL estimation. It aims to answer whether, by only having the basic SCADA data, normally collected from all wind turbines, valuable RUL prediction results can be obtained. The work intends to develop a reliable, accurate, user-friendly and informative tool to enable observation of any growing trends in the proposed metrics, such as temperature difference, cumulative sum of temperature difference and the moving average of the cumulative sum. These metrics are defined based on the differences between the actual temperatures of the components, that might have undergone some damage and the model predicted temperatures of those components if they would have remained healthy, throughout years of operation. A machine learning model is used, along with selected SCADA input parameters, to predict the healthy state temperature of components. The proposed method is implemented on SCADA data collected from an actual wind farm over seven years. The results of this study show that while the SCADA data analysis can contribute to fault detection, the estimation of RUL purely based on SCADA appears to be uncertain. Such tools however, can be used as a monitoring method, during operation, to record abnormality trend of the components over the years and can be used as important inputs for the life extension evaluation of wind turbine drivetrains

NACCHO Exchange: Health Equity

Essential Elements of Health Equity Practice: Partnering to Support Power-Building; Revitalizing Communities: Partnerships to Create Active, Safe Places in Merced County, California; Advancing Health Equity through Regional Collaboration; and Governing for Racial Equity: A Local Health Department's Journe