32 research outputs found

    State and Local Legislation: More Hurdles for Unmanned Aerial Systems (UAS) Integration?

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    Congressional mandate for the integration of unmanned aerial systems (UAS) in the National Airspace System (NAS) to take place by 2015, significant interest in UAS investment, operations, and research has taken place Complex array of requirements and restrictions have been placed on UAS stakeholders by the Federal Aviation Administration (FAA) Limited Congressional legislative guidanc

    The Role of Unmanned Aircraft Systems (UAS) in Disaster Response and Recovery Efforts: Historical, Current and Future

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    A wide range of legislation has been proposed or put into place that restricts the use of unmanned systems. These actions by legislators and regulators will stifle the growth of this technology and the associated surrounding industry. The largest obstacle to the proliferation of UAS in the U.S. is the FAA. The FAA has designated the location of six test sites that are anticipated to allow for less restrictive and formative research to assess the technologies that the FAA has claimed need to exist in order to integrate UAS into the NAS. Further complicating the adoption of UAS for beneficent causes is the plethora of local and state legislation and regulation. Whilst many state restrictions do have built-in caveats to potentially allow for disaster support utilizing UAS, not all are so explicit. All of these actions make the adoption ofUAS in disaster areas more complex and may sway associated agencies away from purchasing UAS for these uses in the future. This research outlines historical uses of UAS to provide basis for the adoption in disaster relief. Examples of past use of unmanned systems in exigent event response are provided including post-hurricane rescue, wild fire monitoring, and landslide disaster relief. An example of missed opportunities with UAS, the Boston Marathon bombing is also outlined. Current UAS usage in first response is explained including types of platforms and sensors that show promise in such operations. Future considerations for UAS adoption in disaster efforts are outlined

    Kinematic Effects in Large Transport Aircraft

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    The control of an aircraft relies on sensory feedback. It follows that any aspect that could create a situation where that feedback is faulty can lead to unintended outcomes. The size of very large jet aircraft can result in kinematic effects that impact the perceptions of the flight crew. Due to the large amount of inertia involved, coupled with aerodynamic factors, when the aircraft pitch (Ξ) is initially changed, the short term actual motion of the aircraft, as viewed from the center of gravity, remains relatively unchanged. As a consequence of aircraft design, this results in the flight deck changing relative height as a consequence of the vertical rotation while the flight path stays relatively constant. Near to the ground (when external visual cues of height are most needed), a pilot may incorrectly believe that the aircraft flight path has changed when it has not. Furthermore, in large aircraft the eye-height of the pilot when landing is quite high, and thus increases the probability that the pilot will not be aware of relatively small changes in actual aircraft height. The aircraft pitch changes and large height off the ground can result in the pilot becoming unaware of the aircraft height during landing with serious consequences. Once recognized, all of these factors can be mitigated through training and visual aids. Further research should be conducted and pilots should be trained to recognize and mitigate the kinematic issues pertinent to large transport aircraft

    Impact of Electronic Flight bag (EFB) on Single Pilot Performance and Workload

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    The increase of automation in the aviation industry poses challenges to human performance. To attest this point, studies about aircraft accidents reveal that pilots’ response to automated systems is not always coherent. Research findings suggest that pilots’ interaction with automated systems in highly demanding task situations results in an increase in workload, and if they are unable to resolve it in time, it will compromise flight safety. Therefore, in the interest to further explore the impact of automation on human factor constructs, the study aimed to investigate the impact of Electronic Flight Bag (EFB) on pilot workload. The study measured the workload experienced by pilots in a visual flight rule approach in expected and unexpected situations with the use of EFB and paper chart displays. The National Aeronautics and Space Administration -Task Load Index was used to measure pilot workload. The results showed a significant difference in pilot workload between expected and unexpected approaches indicating the influence of pilot workload during highly demanding tasks. However, there was no significant difference in the pilot workload between the use of EFB and paper at approach. There was also no significant interaction between approach and display. It is suggested that future studies increase the sample size and explore more demanding flight situations that allow further use of EFB functionalities

    The Effectiveness of Augmented Reality as a Facilitator of Information Acquisition in Aviation Maintenance Applications

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    Until recently, in the field of Augmented Reality (AR) little research attention has been paid to the cognitive benefits of this emerging technology. AR, the synthesis of computer images and text in the real world, affords a supplement to normal information acquisition that has yet to be fully explored and exploited. AR achieves a more smooth and seamless interface by complementing human cognitive networks, and aiding information integration through multimodal sensory elaboration (visual, verbal, proprioceptive, and tactile memory) while the user is performing real world tasks. AR also incorporates visuo-spatial ability, which involves the representations of spatial information in memory. The use of this type of information is an extremely powerful form of elaboration. This study examined four learning paradigms: print (printed material) mode, observe (video tape) mode, interact (text annotations activated by mouse interaction) mode, and select (AR) mode. The results of the experiment indicated that the select (AR) mode resulted in better learning and recall when compared to the other three conventional learning modes

    Omecamtiv mecarbil in chronic heart failure with reduced ejection fraction, GALACTIC‐HF: baseline characteristics and comparison with contemporary clinical trials

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    Aims: The safety and efficacy of the novel selective cardiac myosin activator, omecamtiv mecarbil, in patients with heart failure with reduced ejection fraction (HFrEF) is tested in the Global Approach to Lowering Adverse Cardiac outcomes Through Improving Contractility in Heart Failure (GALACTIC‐HF) trial. Here we describe the baseline characteristics of participants in GALACTIC‐HF and how these compare with other contemporary trials. Methods and Results: Adults with established HFrEF, New York Heart Association functional class (NYHA) ≄ II, EF ≀35%, elevated natriuretic peptides and either current hospitalization for HF or history of hospitalization/ emergency department visit for HF within a year were randomized to either placebo or omecamtiv mecarbil (pharmacokinetic‐guided dosing: 25, 37.5 or 50 mg bid). 8256 patients [male (79%), non‐white (22%), mean age 65 years] were enrolled with a mean EF 27%, ischemic etiology in 54%, NYHA II 53% and III/IV 47%, and median NT‐proBNP 1971 pg/mL. HF therapies at baseline were among the most effectively employed in contemporary HF trials. GALACTIC‐HF randomized patients representative of recent HF registries and trials with substantial numbers of patients also having characteristics understudied in previous trials including more from North America (n = 1386), enrolled as inpatients (n = 2084), systolic blood pressure < 100 mmHg (n = 1127), estimated glomerular filtration rate < 30 mL/min/1.73 m2 (n = 528), and treated with sacubitril‐valsartan at baseline (n = 1594). Conclusions: GALACTIC‐HF enrolled a well‐treated, high‐risk population from both inpatient and outpatient settings, which will provide a definitive evaluation of the efficacy and safety of this novel therapy, as well as informing its potential future implementation

    Monitoring automation failures: Effects of age on performance and cognitive tradeoffs

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    The effects of aging and its relationship to performance and cognitive tradeoffs in automated flight tasks were analyzed. The study involved 24 adults who performed a modified version of NASA\u27s Multi-Attribute Task Battery. They were required to monitor an automated system task while performing a resource management and a tracking task manually. The performance on the system monitoring task was found to differ significantly as a function of age. The results indicate that the ability to perform simultaneous tasks may be allocated differently as a function of age and task load requirements

    Augmented Reality in a Learning Paradigm for Flight and Aerospace Maintenance Training

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    Augmented reality used to train flight students and aerospace maintenance technicians

    Human Performance Situation Awareness And Automation: Current Research And Trends

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    In 2000, the Conference on Automation joined forces with a partner group on situation awareness (SA). The rising complexity of systems demands that one can be aware of a large range of environmental and task-based stimulation in order to match what is done with what has to be done. Thus, SA and automation-based interaction fall naturally together and this conference is the second embodiment of this union. Moving into the 21st century, further diversification of the applications of automation will continue--for example, the revolution in genetic technology. Given the broad nature of this form of human-machine interaction, it is vital to apply past lessons to map a future for the symbiotic relationship between humans and the artifacts they create. It is as part of this ongoing endeavor that the present volume is offered
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