Before the opening of the new Munich International Airport and the termination of the old airport, children near both sites were recruited into aircraft-noise groups (aircraft noise at present or pending) and control groups with no aircraft noise (closely matched for socioeconomic status). A total of 326 children (mean age = 10.4 years) took part in three data-collection waves, one before and t...

Lateral tower vibrations of offshore wind turbines are normally lightly damped, and large amplitude vibrations induced by wind and wave loads in this direction may significantly shorten the fatigue life of the tower. This paper proposes the modeling and control of lateral tower vibrations in offshore wind turbines using active generator torque. To implement the active control algorithm, both th...

Because airports are currently a bottleneck in the ATM system research and development effort is spent in creating high performing airport operations. In order to actively influence airport performance, joint decisions made in an Airport Operations Control Center (APOC) are proposed. This idea raises several research questions; one is in how far guidelines for a structured communication process...

The present study proposes a novel tower-control technique that couples linear control feedback theory with an online time-frequency analysis of the tower vibrations, with the aim to widen the research area of situational control of wind turbines. Numerical simulations were conducted for two 5MW-class offshore wind turbines, and the performance of the proposed control method has been tested in ...

Building simple and accurate models of hub airports can considerably help one understand airport dynamics, and may provide quantitative estimates of operational airport improvements. In this paper, three models are proposed to capture the dynamics of busy hub airport operations. Two simple queuing models are introduced to capture the taxi-out and taxi-in processes. An integer programming model ...

With continuing security concerns for airport operations, the protection of internal operational protocols of an international airport has become more critical than ever before. Therefore, the Information Security System (ISS) was developed for Incheon International Airport which can protect the critical information related to airport operations. The developed ISS includes a document access con...

A tower crane can be reduced the sway oscillation easily by controlling the rotation acceleration. With the proposed open-loop fast control method which is operated by controlling acceleration, the sway angle of suspended load can be maintained during the movement as well as reduced oscillation during and at the end of movement. In this paper, we design and produce a scaled tower crane with a s...

By providing real-time updates of essential information, airports not only display and disseminate information but also help control the flow of traffic. In order to maximize available space, particularly in high traffic areas, Airport Display Information Systems should be integrated into the overall design of the airport and their positioning should be carefully planned to deliver optimal resu...

Inappropriate disclosure and use of personal health information could have severe adverse consequences for the individual to whom it pertains, but non-disclosure could adversely affect other individuals or the society. In Australia efforts are under way to develop legislation that will address the protection of confidential health information. Development of large-scale health information repos...

Applications often use behavior control mechanisms in order to ensure that individuals create sufficiently strong passwords. Behavior controls, which force individuals to utilize specific password characteristics, are assumed to be the best mechanism to encourage strong password creation. However, an over reliance on them could lead to counterproductive security behaviors. This study examines t...