Development and testing of laser Doppler system components for wake vortex monitoring. Volume 2: Scanner operations manual

The theory and operation of the scanner portion of the laser Doppler system for detecting and monitoring aircraft trailing vortices in an airport environment are discussed. Schematics, wiring diagrams, component values, and operation and checkout procedures are included

Administrative Inconvenience and the Media\u27s Right to Copy Judicial Records

English and American common law have long recognized the public\u27s right of access to judicial records. The United States Supreme Court has acknowledged the importance of this right but has failed to set clear standards for lower courts to follow in evaluating right-of-access claims. This Note explores the disagreement among the federal courts of appeals regarding the appropriate scope of review in right-of-access cases and the force of the presumption in favor of access. This Note argues that federal appellate courts should not limit review to abuse of discretion, but should evaluate the balancing the lower court performed and determine if the lower court appropriately weighed the competing interests in making its decision. This Note concludes that the presumption in favor of access should yield more readily to constitutional concerns than to administrative concerns. Reasonable constitutional concerns would therefore trump the common-law right of access, whereas administrative concerns must be compelling to overcome the presumption favoring access

Searching for jet rotation in Class 0/I sources observed with GEMINI/GNIRS.

Original article can be found at: http://www.aanda.org/ Copyright The European Southern ObservatoryContext: In recent years, there has been a number of detections of gradients in the radial velocity profile across jets from young stars. The significance of these results is considerable. They may be interpreted as a signature of jet rotation about its symmetry axis, thereby representing the only existing observational indications supporting the theory that jets extract angular momentum from star-disk systems. However, the possibility that we are indeed observing jet rotation in pre-main sequence systems is undergoing active debate. Aims: To test the validity of a rotation argument, we must extend the survey to a larger sample, including younger sources. Methods: We present the latest results of a radial velocity analysis on jets from Class 0 and I sources, using high resolution data from the infrared spectrograph GNIRS on GEMINI South. We obtained infrared spectra of protostellar jets HH 34, HH 111-H, HH 212 NK1 and SK1. Results: The [Fe II] emission was unresolved in all cases and so Doppler shifts across the jet width could not be accessed. The H2 emission was resolved in all cases except HH 34. Doppler profiles across the molecular emission were obtained, and gradients in radial velocity of typically 3 km s-1 identified. Conclusions: Agreement with previous studies implies they may be interpreted as jet rotation, leading to toroidal velocity and angular momentum flux estimates of 1.5 km s-1 and 1 × 10-5 yr-1 AU km s-1 respectively. However, caution is needed. For example, emission is asymmetric across the jets from HH 212 suggesting a more complex interpretation is warranted. Furthermore, observations for HH 212 and HH 111-H are conducted far from the source implying external influences are more likely to confuse the intrinsic flow kinematics. These observations demonstrate the difficulty of conducting this study from the ground, and highlight the necessity for high angular resolution via adaptive optics or space-based facilities

Assessing Ratio-Based Fatigue Indexes Using a Single Channel EEG

Driver fatigue is a state of reduced mental alertness which impairs the performance of a range of cognitive and psychomotor tasks, including driving. According to the National Highway Traffic Safety Administration, driver fatigue was responsible for 72,000 accidents that lead to more than 800 deaths in 2015. A reliable method of driver fatigue detection is needed to prevent such accidents. There has been a great deal of research into studying driver fatigue via electroencephalography (EEG) to analyze brain wave data. These research works have produced three competing EEG data-based ratios that have the potential to detect driver fatigue. Research has shown these three ratios trend downward as fatigue increases. However, no empirical research has been conducted to determine whether drivers begin to feel fatigue at a certain Percent Change from an alert state to a fatigue state in one or more of these ratios. If a Percent Change could be identified for which drivers begin to feel fatigue, then it could be used as a method of fatigue detection in real-time system. This research focuses on answering this question by collecting brain wave data via an EEG device over a 60-minute driving session for 10 University of North Florida (UNF) students. A frequency distribution and cluster analysis was done to identify a common Percent Change for the participants who experienced fatigue. The results of the analysis were compared to a subset of users who did not experience fatigue to validate the findings. The project was approved by the UNF IRB on Nov. 1, 2016 (reference number 475514-4)

Revitalization of School Facilities

The purpose of this study was to analyze current practices in the revitalization of school buildings and assimilate data that can be used by school administrators to make informed decisions about the revitalization of school facilities. Through a review of literature, elements for planning the revitalization of school facilities were identified and analyzed. These elements were included in an interview guide used during on-site visits to selected revitalized schools. Nine schools renovated since 1985 in Virginia, Tennessee, and North Carolina were chosen to participate in the study. The treatment of data was reported around the use of identified elements of planning for renovating school buildings. Data from the schools were divided by states to make comparisons. The study indicated that structural soundness, program support, site, and cost are four areas of concern when planning for the revitalization of a school. The specific planning elements included the development of educational specifications; attention to site condition; consideration of playground areas; importance of the exterior appearance of school buildings; space utilization; condition of mechanical and electrical systems; importance of energy efficiency, development of barrier free environments, treatment of thermal environments; consideration of acoustics; management of visual environments; selection of furniture and equipment; and attention to aesthetics. As a result of the findings of this study, the following conclusions were drawn: (1) Planning for the revitalization of school buildings differs from one school to another even when the schools are in the same system. (2) States do not employ facility planners to help school systems revitalize their school buildings. (3) Many school administrators do not know how to assess the condition of the schools in their districts. (4) Administrators and other individuals involved in revitalizing school facilities want more information on how to systematically plan for the modernization of school buildings