Research papers

A cross-sectional pilot study of compassion fatigue, burnout, and compassion satisfaction in pediatric palliative care providers in the United States

A cross-sectional pilot study of CF, BO, and CS among pediatric palliative care providers across the United States found that CF and BO directly influence the well-being and professional performance of PPC providers.

Development of c-means Clustering Based Adaptive Fuzzy Controller for A Flapping Wing Micro Air Vehicle

Advanced and accurate modelling of a Flapping Wing Micro Air Vehicle (FW MAV) and its control is one of the recent research topics related to the field of autonomous Unmanned Aerial Vehicles (UAVs).

Generic Evolving Self-Organizing Neuro-Fuzzy Control of Bio-inspired Unmanned Aerial Vehicles

At recent times, with the incremental demand of the fully autonomous system, a huge research interest is observed in learning machine based intelligent, self-organizing, and evolving controller.

Incremental Control and Guidance of Hybrid Aircraft Applied to a Tailsitter UAV

Hybrid unmanned aircraft can significantly increase the potential of micro air vehicles, because they combine hovering capability with a wing for fast and efficient forward flight.

Subjectivity in Failure Mode Effects Analysis (FMEA) Severity Classification within a Reliability Centered Maintenance (RCM) Context

This research paper investigated subjectivity in the severity rating of failure modes within a risk analysis process. Although several risk analysis processes can be utilized, the study considered the application of Fail…

Safety knowledge transfer through mobile virtual reality: A study of aviation life preserver donning

Virtual Reality techniques are used, adapting them to the constraints imposed by on-board aircraft use, such as usage on non-immersive, small displays, and show that the participants who use the mobile VR tool were able …

High risk occurrence chains in helicopter accidents

An approach to identify high-risk sequences of events (or occurrence chains) in General Aviation accidents using historical accident data is developed and recommended to improve the NTSB accident database and recording s…

Preventing Conduct Disorder and Callous Unemotional Traits: Preliminary Results of a School Based Pilot Training Program

Preliminary evidence that child focused training delivered in the school setting can provide lasting benefits by preventing the development of CU traits, impulsivity, and CD is provided.

Regulation or criminalisation: What determines legal standards of safety culture in commercial aviation?

Abstract This paper highlights that further development of safety culture as a quantifiable standard presents a considerable dilemma to policy makers.

Assessment and Comparison of Aviation Manufacturing Industries throughout Mexico and Brazil

This literature review serves to provide insight and understanding in regards to the evolving aviation manufacturing industry throughout the globe and more specifically, Mexico and Brazil.

Model Based Desgin Environment for Launcher Upper Stage GNC Development

The cost associated with developing flight control forms a significant part of the overall development cost. The increased demand for greater functionality and for extending the domain of applicability of future launcher…

Voliro: An Omnidirectional Hexacopter With Tiltable Rotors

Extending the maneuverability of unmanned areal vehicles promises to yield a considerable increase in the areas in which these systems can be used.

Integrated modeling and validation for phase change with natural convection

Water-ice systems undergoing melting develop complex spatio-temporal interface dynamics and a non-trivial temperature field. In this contribution, we present computational aspects of a recently conducted validation study…

Systematic design methodology for development and flight testing of a variable pitch quadrotor biplane VTOL UAV for payload delivery

This paper discusses the conceptual design and proof-of-concept flight demonstration of a novel variable pitch quadrotor biplane Unmanned Aerial Vehicle concept for payload delivery.

Autonomous Tracking of Intermittent RF Source Using a UAV Swarm

Localization of a radio frequency (RF) transmitter with intermittent transmissions is considered via a group of unmanned aerial vehicles (UAVs) equipped with omnidirectional received signal strength (RSS) sensors.

Calculating the Cost of Pilot Turnover

Controlling costs is a critical ingredient in achieving profitability in the airline industry. Typically, labor costs are the first or second highest cost category for airlines.

Meeting Real World Demands of the Global Economy: An Employer's Perspective

Educational programs prepare students theoretically for the workplace, but many programs are still lacking in the real-world skills that the workplace requires.

Crew Resource Management (CRM) and Cultural Differences Among Cockpit Crew - the Case of Turkey

The globalization of the aviation industry necessitated many international airlines to recruit cockpit and cabin crews from different countries with different national cultures.

Airships in U.N. Humanitarian and Peace Operations: Ready for Service?

This study examines whether the United Nations should take steps in the near future to exploit the operational characteristics of lighter-than-air (LTA) and hybrid aircraft in support of its peace and humanitarian operat…

Pilot Supply at the Regional Airlines: Airline Response to the Changing Environment and the Impact on Pilot Hiring

Regional airlines facing pilot supply challenges have responded to the rapidly changing environment by increasing pay, adjusting lifestyle factors, and enhancing career pathway opportunities.

Adaptive Learning Pedagogy of Universal Design for Learning (UDL) for Multimodal Training

Traditionally, students or trainees usually receive training through a unidirectional instructional approach that can lack interactive activities or through a single material source in classrooms.

Called to Safety? Individual and Combined Effects of Safety Climate and Occupational Callings on Aviator Safety Performance

This study examined the individual and combined effects of two potential antecedents to aviation-related safety performance: safety climate and occupational callings.

Scenario Development for Unmanned Aircraft System Simulation-Based Immersive Experiential Learning

Application of scenario-based training can serve as practical means of educating remote pilots and sensor operators as they seek professional levels of knowledge.

Using 3 Dimension Health Vegetation Index Point Clouds to Determine HLB Infected Citrus Trees

Three-dimensional NDVI point clouds can be an innovative method for detecting Huanglongbing (HLB) disease in citrus trees. In February 2018, an Unmanned Aircraft System (UAS) captured narrow-band multispectral images to …

Space Operations in the Suborbital Space Flight Simulator and Mission Control Center: Lessons Learned with XCOR Lynx

This study was conducted to better understand the performance of the XCOR Lynx vehicle. Because the Lynx development was halted, the best knowledge of vehicle dynamics can only be found through simulator flights.

Human Error Analysis of Helicopter Emergency Medical Services (HEMS) Accidents Using the Human Factors Analysis and Classification System (HFACS)

Helicopter Emergency Medical Services (HEMS) is among the most dangerous type of flying in commercial aviation. This research utilized the Human Factors Analysis and Classification System (HFACS) to understand the errors…

SES and Ecore for Ontology-based Scenario Modeling in Aviation Scenario Definition Language (ASDL)

The Aviation Scenario Definition Language (ASDL) is a domain-specific language proposal which aims to provide a standard aviation scenario specification mechanism and enable the reuse of scenario generation methods among…

Manned Versus Unmanned Aircraft Accidents, Including Causation and Rates

Many consider aircraft reliability a primary deterrent to the further integration of unmanned aircraft into civil airspace. Discussions of unmanned aircraft reliability often include comparisons of accident rates of medi…

Quantitative Examination and Comparison of Altimetry Rules-of-Thumb for General Aviation

General aviation rules of thumb (ROTs) for density altitude and true altitude are examined and developed. Both ROTs originate from the same basic principle of hydrostatic balance, but differ significantly in the assumpti…

Modernizing the Supply Chain of Airbus by Integrating RFID and Blockchain Processes

Radio Frequency Identification, or RFID, has been gaining momentum within the aviation industry for improving efficiencies in the supply chain.

Assessment of the Evolving Low-Cost Business Model for the Future Importance of U.S. Secondary Airports

Airline deregulation caused a profound reshape in the aviation industry. The liberalization of the aviation sector resulted in a favorable environment for the emergence of low-cost carriers (LCCs).

Evaluating Small UAS Near Midair Collision Risk Using AeroScope and ADS-B

As small unmanned aircraft systems (sUAS) continue to proliferate in the National Airspace System (NAS), near midair collisions are becoming more common.

A Novel Approach for Missing Combat Support Aircraft Search Acceleration using VTOL UAS

In this paper, an approach to accelerate search operations for a missing combat support aircraft using a portable waterproof autonomous vertical takeoff and landing unmanned aerial system called “flying locator beacon” i…

How low-cost carriers are changing the growing East Asian travel market

The Asian air travel market is currently one of the fastest growing in the world. The gross domestic travel percentage grew 4% year over year in 2014, with China, India, and Indonesia each growing over 10%.

Language-Related Communications Challenges in General Aviation Operations and Pilot Training

English is the basis for aviation communications worldwide creating challenges for both native and non-native English speakers. An unfortunate outcome of language-related communications issues, whether indirectly or dire…

UAS Maintenance: A Critical Component in Maintaining Airworthiness

Over the last several decades, the notion of traditional aircraft design has significantly changed. While there are many modern aircraft that resemble earlier models, their components, systems, and overall architecture h…

Learning from Asiana 214--Minimizing Strike/Rollover for Aircraft Rescue and Firefighting

Following the crash of Asiana flight 214 on July 6, 2013, the National Transportation Safety Board (NTSB) provided a recommendation to the Aircraft Rescue & Fire Fighting Working Group (ARFFWG) to develop best practices …

Design of Revising Proximity between Space and Time Cues on Flight Deck Displays to Support NextGen – The First Phase

The objective of this study is to develop and evaluate novel display formats to support RTA operations for near to midterm NextGen. Traditional cockpit displays separate space and time information in distant display sour…

Design of Revising Proximity between Space and Time Cues on Flight Deck Displays to Support NextGen – The Second Phase

The prior first phase of this study investigated the effectiveness of new design of flight deck display for required time of arrival operation of NextGen by collecting objective query response data during autopilot fligh…

Enhancing the Safety Training of GA Pilots to Reduce the Risk of Bird Strikes: An Experimental Pilot Study

Analyses of wildlife strike data from 2000 through 2016 indicate that for the general aviation (GA) community, the number and rate of damaging strikes has increased both at and outside the airport environment.

Assessing the risks: An analysis of wildlife-strike data at the three busiest Brazilian airports (2011-2016)

Brazil is the largest country in Latin America and has a considerable amount of air traffic volume domestically and internationally. Wildlife strikes are an increasing safety and economic concern for aviation operations …

Evaluating the Effect of Turbulence on Aircraft During Landing and Take-Off Phases

—— Low level wind shear and turbulence present a serious safety risk to aircraft during the approach, landing and take-off phases. Low level wind shear has been identified as one of the primary factors for aircraft go-ar…

Mental Health in Commercial Aviation - Depression & Anxiety of Pilots

Two landmark accidents invigorated the discussion regarding pilot mental health. Other incidents may also have a mental health component that is related to, but not the direct cause of, the event.

Design and Optimization of Aircraft Configuration for Minimum Drag

This paper presents a reliable and robust optimization for minimum drag of an aircraft at the conceptual design phase. Firstly, the conceptual design code was developed and existing Single Seat Aerobatic (SSA) aircraft w…

Modeling Oculomotor Variability During Slow Cabin Decompression Using Infrared Technology

Slow cabin decompression is highly perilous due to its gradual and thus generally inconspicuous nature. In an applied approach to studying its effects upon oculomotor performance, experienced pilots performed a simulated…

Innovative Dodecacopter Design – Bulgarian Knight

The current article aims at introducing a novel dodecacopter multirotor design called Bulgarian Knight. The aircraft implements a number of innovations and characteristics that give it an advantage over other contemporar…

Application of artificial neural networks for the prediction of aluminium agglomeration processes

Aluminium is universal and vital constituent in composite propellants and typically used to improve performance. Aluminum agglomeration takes place on the burning surface of aluminized propellants, which leads to reduced…

Damage characterization of aircraft fuselage using vibrothermography technique-review and analysis

Vibrothermogrphy is a promising non-destructive technique that uses ultrasonic elastic waves to detect damages and is typically applied in the aerospace and automotive industries.

A Backward Walking Training Program to Improve Balance and Mobility in Acute Stroke: A Pilot Randomized Controlled Trial

Backward walking training is a feasible important addition to acute stroke rehabilitation and future areas of inquiry should examine BWT as a preventative modality for future fall incidence.

Evaluating the Effectiveness of Fatigue Management Training to Improve Police Sleep Health and Wellness: A Pilot Study

The findings suggest that a fatigue management training program resulted in positive sleep health benefits for police, and stress the importance of continued evaluation to inform the large-scale implementation of fatigue…