Simulator manufacturers' requirements

Simulator manufacturers must continue to provide the customers the latest wind shear models available for pilot training. The release of the JAWS data package enabled the provision of a much more realistic wind shear package to the customer rather than just the standard six SRI wind shear profiles currently in use. In this brief presentation, the steps taken in implementing the JAWS data into the FAA 727 simulator are highlighted

A Performance Analysis of Movement Patterns

This study investigates the differences in movement patterns followed by users navigating within a virtual environment. The analysis has been carried out between two groups of users, identified on the basis of their performance on a search task. Results indicate significant differences between efficient and inefficient navigators’ trajectories. They are related to rotational, translational and localised-landmarks behaviour. These findings are discussed in the light of theoretical outcomes provided by environmental psychology

A follow-up study of the 1949 and 1950 graduates of Chandler School for Women, Boston, Massachusetts, and a survey of the employers of the Chandler graduates, with implications for curriculum revision.

Thesis (Ed.M.)--Boston Universityb1466393

Incentivizing Corporate America to Eradicate Transnational Bribery Worldwide: Federal Transparency and Voluntary Disclosure under the Foreign Corrupt Practices Act

In 1977, the U.S. Securities and Exchange Commission (SEC) discovered that hundreds of U.S. companies had spent hundreds of millions of dollars in bribes to improve business overseas. In response, Congress passed the Foreign Corrupt Practices Act (FCPA), thereby making it illegal to bribe foreign officials to obtain a business advantage. A major tension has emerged between the federal agencies charged with enforcing the FCPA (i.e., the U.S. Department of Justice (DOJ) and the SEC), and the corporate entities trying to stay within the legal and regulatory bounds of the statute. Specifically, while the government appears to be trying to maximize discretion and flexibility in carrying out its enforcement duties, companies are calling for more transparency and guidance. Unfortunately, the government\u27s FCPA Resource Guide, published in 2012 to provide the public with more direction, fails to shed enough light on how to successfully conform to this complicated statute. This Article focuses on the difficult and strategic decision of whether a company should self-report to the government a potential FCPA violation. After reviewing the advantages and disadvantages of self-reporting, this Article argues that the government needs to be more transparent and forthcoming regarding the potential benefits of doing so; it argues that the government must provide greater transparency regarding specific and calculable benefits that can be achieved through self-reporting and cooperation in the face of possible FCPA violations. Finally, this Article concludes that companies will be more likely to self-report such violations- and thereby assist in eradicating the scourge of transnational bribery worldwide-only if there is more certainty that the benefits achieved from self-reporting will outweigh the risks and costs involved

Assessment of casting filling by modeling surface entrainment events using CFD

The reliability of cast components is dependent on the quality of the casting process. During this highly transient filling phase the prevention of free surface turbulence and consequential oxide entrainment is critical to ensure the mechanical integrity of the component. Past research has highlighted a number of events that lead to entrainment of surface oxides. Using FLOW-3D, flow structures that result in surface entrainment events have been simulated and an algorithm developed that allows entrainment and defect motion to be tracked. This enables prediction of the quantity and motion of oxide film generated from each event. The algorithm was tested experimentally and compared to experimental data from previously published work. A quantitative criterion is proposed to assess the damage of each type of event. Complete running systems have also been studied to understand how they could be assessed for quality of filling based on the flows within them

The modelling of oxide film entrainment in casting systems using computational modelling

As Campbell stated in 2006, “the use of entrainment models to optimise filling systems designs for castings has huge commercial potential that has so far being neglected by modellers”. In this paper a methodology using computational modelling to define entraining events and track the entrained oxide films is presented. Research has shown that these oxide films present within the casting volume are highly detrimental to casting integrity, thus their entrainment during mould filling is especially undesirable. The method developed for the modelling of oxide entrainment has been validated against previously published data by Green and Campbell (1994) [31]. The validation shows good quantitative correlation with experimental data. However there is scope for further development which has the potential to both improve the accuracy and further validate the technique

Modeling user navigation

This paper proposes the use of neural networks as a tool for studying navigation within virtual worlds. Results indicate that the network learned to predict the next step for a given trajectory. The analysis of hidden layer shows that the network was able to differentiate between two groups of users identified on the basis of their performance for a spatial task. Time series analysis of hidden node activation values and input vectors suggested that certain hidden units become specialised for place and heading, respectively. The benefits of this approach and the possibility of extending the methodology to the study of navigation in Human Computer Interaction applications are discussed

Are you serious? From fist bumping to hand hygiene: considering culture, context and complexity in infection prevention intervention research

Infection prevention is an under-resourced research and development topic, with limited evidence for practice in the most basic of measures. A survey of IPS R&D members indicated that what might appear to be simple interactions and interventions in healthcare, such as hand shaking and hand hygiene, should be considered complex interventions taking account of behaviour at the individual and social level as well as contextual factors. Future studies need to be designed utilising comprehensive approaches, for example, the Medical Research Council complex interventions framework, tailored to the country and more local cultural context, if we are to be serious about evidence for infection prevention and control practice