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Journal articles on the topic 'Aeronautical Board'
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1
Lord Kings, Norton. "Extract from A Wrack Behind." Aeronautical Journal 103, no. 1022 (April 1999): 214. http://dx.doi.org/10.1017/s000192400009655x.
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In 1943, with the world still at war, a great discussion on the future of aeronautical education was held by the Royal Aeronautical Society. Not only would the war years, however many were still to come, demand more well-qualified aeronautical engineers, but the longed for peace years, with engineers turning swords into ploughshares, would want more. The discussion was in two parts. One took place on 25 June and the other on 23 July. Many of the leading figures in British aeronautics took part and in the chair on both occasions was Dr Roxbee Cox, a vice-president of the society. The discussion culminated in a resolution based on a proposal by Marcus Langley. That resolution and the discussion which led to it resulted in the recommendation by the Aeronautical Research Committee that a post-graduate college of aeronautical science should be established. This was followed by governmental action. Sir Stafford Cripps, then the minister responsible for aircraft production, set up a committee presided over by Sir Roy Fedden to make specific proposals, and the committee recommended in its 1944 report that such a college should be a new and independent establishment. In 1945 the government created the College of Aeronautics board of governors under the chairmanship of Air Chief Marshal Sir Edgar Ludlow-Hewitt to bring the college into existence and govern it. The first meeting of this board took place on 28 June 1945 and there were present: Sir Edgar Ludlow Hewitt, Dr W. Abbot, Mr Hugh Burroughs, Sir Roy Fedden, Mr J. Ferguson, Sir Harold Hartley, Sir William Hil-dred, Sir Melvill Jones, Dr E.B. Moullin, Mr J.D. North, Sir Frederick Handley Page, Mr E.F. Relf, Dr H. Roxbee Cox, Air Marshal Sir Ralph Sovley, Rear Admiral S.H. Troubridge and Mr W.E.P. Ward. Sir William Stanier, who had been appointed, was not present.
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Siabato, Willington, Javier Moya-Honduvilla, and Miguel Ángel Bernabé-Poveda. "Supporting Aeronautical Information Management (AIM) Through Geographic Information Technologies and Spatial Data Infrastructures (SDI)." International Journal of Applied Geospatial Research 7, no. 3 (July 2016): 1–37. http://dx.doi.org/10.4018/ijagr.2016070101.
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The way aeronautical information is managed and disseminated must be modernized. Current aeronautical information services (AIS) methods for storing, publishing, disseminating, querying, and updating the volume of data required for the effective management of air traffic control have become obsolete. This does not contribute to preventing airspace congestion, which turns into a limiting factor for economic growth and generates negative effects on the environment. Owing to this, some work plans for improving AIS and air traffic flow focus on data and services interoperability to allow an efficient and coordinated use and exchange of aeronautical information. Geographic information technologies (GIT) and spatial data infrastructures (SDI) are comprehensive technologies upon which any service that integrates geospatial information can rely. The authors are working on the assumption that the foundations and underlying technologies of GIT and SDI can be applied to support aeronautical data and services, considering that aeronautical information contains a large number of geospatial components. This article presents the design, development, and implementation of a Web-based system architecture to evolve and enhance the use and management of aeronautical information in any context, e.g., in aeronautical charts on board, in control towers, and in aeronautical information services. After conducting a study into the use of aeronautical information, it was found that users demand specific requirements regarding reliability, flexibility, customization, integration, standardization, and cost reduction. These issues are not being addressed with existing systems and methods. A system compliant with geographic standards (OGC, ISO) and aeronautical regulations (ICAO, EUROCONTROL) and supported by a scalable and distributed Web architecture is proposed. This proposal would solve the shortcomings identified in the study and provide aeronautical information management (AIM) with new methods and strategies. In order to seek aeronautical data and services interoperability, a comprehensive aeronautical metadata profile has been defined. This proposal facilitates the use, retrieval, updating, querying, and editing of aeronautical information, as well as its exchange between different private and public institutions. The tests and validations have shown that the proposal is achievable.
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Pereira and Fernandes. "Sandwich Panels Bond with Advanced Adhesive Films." Journal of Composites Science 3, no. 3 (August 1, 2019): 79. http://dx.doi.org/10.3390/jcs3030079.
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Sandwich structures present several advantages, being used in many industries such as the aeronautical industry. In this study, an automated laminating line is employed to manufacture sandwich panels for boards. This work focus on an innovative solution, employing an advanced adhesive film to increase the bonding strength of sandwich structures used for this application. This was used to bond ceramic steel sheets to honeycomb‐cored structures, creating an innovative solution for the board industry. Bending tests were carried to evaluate the performance of the new sandwich solutions and to compare it against a typical one available on the market.
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Guadagno, Liberata, Fabiana Foglia, Roberto Pantani, Maria Dolores Romero-Sanchez, Blanca Calderón, and Luigi Vertuccio. "Low-Voltage Icing Protection Film for Automotive and Aeronautical Industries." Nanomaterials 10, no. 7 (July 9, 2020): 1343. http://dx.doi.org/10.3390/nano10071343.
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High-performance heater films are here proposed. They manifest great applicative potentiality in the de-icing technology of aircraft and motor vehicles. The films are suitable to be integrated into composite structures for the de/anti-icing function, which can be activated if the need arises. The heating is based on the joule effect of the current flowing through the electrically conductive films. Voltage and current parameters have been set based on the generators’ capacities on-board an aircraft and a car, as well as on the energy consumption during the operating conditions and the autonomy in the time. Green processes have been employed through all preparative steps of the films, which are composed of expanded graphite (60% wt/wt) and polyvinyl alcohol (PVA) (40% wt/wt). The results reveal a very significant influence of the aspect ratio of the filler on the heating and de-icing performance and suggest how to enhance the de-icing efficiency saving energy and adapting the current on-board aircraft/car generators for de-icing operations.
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Jenab, Kouroush, Nikita Ottosen, and Saeid Moslehpour. "Application of scenario-driven hazard analysis in the solid rocket booster." International Journal of Engineering & Technology 5, no. 1 (January 7, 2016): 16. http://dx.doi.org/10.14419/ijet.v5i1.4673.
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Bibliographical Notes: Kouroush Jenab is a senior member of IEEE, received the B.Sc. degree from the IE Department at Isfahan University of Technology (1989), the M.Sc. degree from the IE Department at Tehran Polytechnic (1992), and the Ph.D. degree from the Department of Mechanical Engineering at the University of Ottawa (2005). He served as a senior engineer/manager in auto, and high-tech industries for 18 years. He joined the National Research Council Canada as a research officer where he participated in several international research projects. In 2006, he joined the Department of Mechanical and Industrial Engineering at Ryerson University, Toronto as assistant professor. Currently, Dr. Jenab is Faculty of the College of Aeronautics at Embry-riddle Aeronautical University, FL, USA. He has published over 110 papers in international scientific journals based on his experiences in industries.Nikita Ottosen is a current Systems Engineering graduate student at Embry-Riddle Aeronautical University. She received her undergraduate degree from ERAU in Aeronautics and is currently working as an Assistant Campus Director at the Crestview, FL campus. She gained valuable knowledge previously working for the Boeing Company and Seattle-Tacoma International Airport, known as The Port of Seattle, in Seattle, Washington. During her time at The Port of Seattle she worked alongside the Wildlife Management department to conduct a study on effective wildlife management strategies. Her study will become a part of a future Airport Cooperative Research Program (ACRP) publication, sponsored by the FAA’s Transportation Research Board of the National Academies.Saeid Moslehpour is a full professor and department chair in the Electrical and Computer Engineering Department in the College of Engineering, Technology, and Architecture at the University of Hartford. He holds Ph.D. (1993) from Iowa State University and Bachelor of Science (1989) and Master of Science (1990) degrees from University of Central Missouri. His research interests include failure analysis, logic design, CPLDs, FPGAs, Embedded electronic system testing and distance learning.
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Cannarile, F., M. Compare, P. Baraldi, G. Diodati, V. Quaranta, and E. Zio. "Elastic net multinomial logistic regression for fault diagnostics of on-board aeronautical systems." Aerospace Science and Technology 94 (November 2019): 105392. http://dx.doi.org/10.1016/j.ast.2019.105392.
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Page, Frederick. "William John Strang, C.B.E., F.R.Eng., F.R.Ae.S. 29 June 1921 – 14 September 1999." Biographical Memoirs of Fellows of the Royal Society 47 (January 2001): 443–51. http://dx.doi.org/10.1098/rsbm.2001.0026.
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Bill Strang was a dedicated aerospace engineer of great integrity and much respected by all who came into contact with him. He was Technical Director of the Commercial Aircraft Division of British Aerospace until he retired in 1983 to become Chairman of the Airworthiness Requirements Board. All his postgraduate career was spent in the British aerospace industry, mostly at Filton near Bristol, except for a brief spell in the Aeronautical Research Laboratory, Melbourne, Australia, from 1948 to 1951. Dr Strang made the biggest industrial contribution to the aerodynamic design of Concorde and in 1977 was elected a Fellow of The Royal Society as a result; he served on several of the Society's committees from 1977 until 1989. From 1983 until 1990 he was Chairman of the Civil Aviation Airworthiness Requirements Board. He was also a keen sailor and became a Coastal Skipper with The Island Cruising Club at Salcombe before qualifying for his Master's Ticket with the Royal Yachting Association. He loved the countryside and walking. He was awarded a C.B.E. in 1973 and in 1997 he was elected a Fellow of the Royal Academy of Engineering. The Royal Aeronautical Society awarded him the Silver Medal in 1971 and the Gold Medal in 1973. In his later years he suffered from a heart problem that was the cause of his death in 1999.
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Kolobanova, M. S., S. M. Klyushin, V. K. Kozlov, and T. N. Prokopenko. "COMPREHENSIVE APPROACH TO MODELING AND CONSTRUCTION OF FUNCTIONAL DEVICES BASED ON SPACEWIRE CONTROLLERS AND SPACEFIBRE CONTROLLERS OF MULTICOR SERIES." Issues of radio electronics, no. 8 (August 20, 2018): 124–32. http://dx.doi.org/10.21778/2218-5453-2018-8-124-132.
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Proposed is an effective integrated approach to the modelling of functional units (FU), on-board computers and embedded systems at the hardware development phase. It is applicable to enterprises with a complete production cycle of industrial systems, including on-board control and information processing devices, space and aeronautical systems and others. In the traditional approach, the driver and on-board software (BPO) are debugged and verified after the manufacture of the product or computer, which significantly increases the lead time for the finished product. The complex approach to modeling the hardware at the transaction level [1] using the SystemC library [2], encapsulating the work with the driver with SpaceWire and SpaceFibre controllers allows to speed up the development of FU and computers, as well as to detect a number of errors and limitations of the system being designed.
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Newman, S. "Shipborne Aviation: An Introduction." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 219, no. 5 (May 1, 2005): 363–68. http://dx.doi.org/10.1243/095441005x30324.
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The evolution of air vehicles for use on board a ship spans a period of nearly 150 years. Starting with observation balloons in the American Civil War, the development has moved to the Joint Strike Fighter, an aircraft of immense technical sophistication and a potent weapon. The design requirements of both ship and aircraft spawn conflicts and the two technologies are now required to work in total unison. This paper discusses the evolution and how the various wars have shaped the most demanding of aeronautical disciplines.
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Yevseyev, Arkhip. "Environmental Engineering based Supervision System Design for Highway Construction." Pollution Engineering 51, no. 3 (October 26, 2020): 04–05. http://dx.doi.org/10.17762/pe.v51i3.61.
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Ecological building oversight assumes a significant part during parkway development. There are a great deal of key segments associated with ecological oversight, for example, how to improve the work successfully and productively. In light of distant detecting and Geographic Information System (GIS), this paper presents a plan for natural building oversight framework as far as ecological observing innovation, incorporated administration and public association. The primary segments in the framework incorporate automated aeronautical vehicle based condition screen and condition the board information base and condition observing subsystem.
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Curran, Stephen John. "Future Trends in Spectrum Management and Technology Choices for Broadband Aeronautical Communications." International Journal of Aviation Systems, Operations and Training 1, no. 1 (January 2014): 1–8. http://dx.doi.org/10.4018/ijasot.2014010101.
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The aircraft of the future will have an increased need for airborne communications among aircraft and between aircraft and the ground. Communications will include traffic such as on board passenger generated internet traffic, aircraft telemetry and information on air traffic control and weather. The likely data requirements are such that the data generated by passengers will be far greater than the aircraft generated data traffic. Passengers will expect data service on the aircraft similar to what they typically experience on the ground. Multimedia activities such video streaming are very bandwidth intensive and the provision of these services presents a serious technical challenge. On the ground, fibre optic cables are the method of choice for the provision of high speed data service and in contrast an airborne high speed data communications solution will need to be a wireless one.
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Collombet, Francis, Yves Davila, Sergio Avila, Alexander Morales, Laurent Crouzeix, Yves-Henri Grunevald, Hilario Hernandez, Nathalie Rocher, and François Cénac. "Proof of a composite repair concept for aeronautical structures: a simplified method." Mechanics & Industry 20, no. 8 (2019): 812. http://dx.doi.org/10.1051/meca/2020056.
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This paper provides an illustration of all stages of primary aeronautical composite structure repair by using industrial tools and scientific methodologies, as well as numerical tools to simplify the cross-over analysis of the mechanical behaviour of the repaired area. Economically and scientifically speaking, one of the main challenges of composite repair (for monolithic long fiber composite parts) consists of promoting a bonded composite patch option without additional riveted doublers. To address this challenge, size reduction of the patch could be mandatory. A patent (jointly owned by ICA, Bayab Industries and CES), entitled “Method for repairing a wall consisting of a plurality of layers”, is devoted to reducing repair patch dimensions of monolithic composite parts provided the bonding zone has a stepped-lap geometry. This patent is based on a simple idea that no overlapping length is required between composite plies for load transfer except in the fiber directions of the plies (unidirectional or biaxial long fiber reinforcements with epoxy matrix). To prove this concept, we consider on one hand, a situation unusual in the literature by studying a composite specimen without fibers aligned along the main loading axis, and on the other hand, a classical situation of where the shape of the specimen is adapted to be studied by uniaxial tension tests. After different manufacturing steps, the studied specimen contains three zones representing both the influence of the total thickness of a repair patch, the stepped-lap area assembled with an adhesive film and the parent composite part. Basically, a simple parent structure consisting of 16 plies of UD Hexply® M21/35%/268/T700GC (close to Airbus composite raw materials on board in A380) is manufactured with a stacking sequence of [+45/−45/−45/+45/+45/−45/−45/+45]s. Then, the parent structure is machined by the Airbus Abrasive Water Jet machine and the final repair area has a stepped-lap geometry by overlapping successive plies of the same nature as the parent plate and after having previously applied an adhesive film (cured at 180 °C). Furthermore, 3 values of overlap length (respectively, 6, 8 and 13 mm) are investigated to include the mean value required by Airbus in the case of the use of the studied prepreg. After abrasive water jet machining of the composite parent part, repair patch manufacturing was performed according to Airbus requirements. The studied specimens were cut from the final plate (involving the parent plate, the stepped lap zone and the zone of the patch itself) and tested in an uniaxial tensile configuration with a loading direction shifted 45° with respect to the fiber direction. Furthermore, studying uniaxial tensile tests on multilayer-pasted interface is innovative in the literature. In this paper, it is shown that the stepped-lap area assembled with an adhesive film is not the weak link of the mechanical response but rather the parent area, i.e. the unrepaired monolithic composite. Numerical calculations confirm this proof of concept by underlying that the level of shear stress in the adhesive film, for these three overlapping values, is below the chosen limit value. These results show that the patch size reduction is possible.
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Jia, F., M. K. Patel, E. R. Galea, A. Grandison, and J. Ewer. "CFD fire simulation of the Swissair Flight 111 in-flight fire – Part II: Fire spread analysis." Aeronautical Journal 110, no. 1107 (May 2006): 303–14. http://dx.doi.org/10.1017/s0001924000013178.
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Abstract In 1998, Swissair Flight 111 (SR111) developed an in-flight fire shortly after take-off which resulted in the loss of the aircraft, a McDonnell Douglas MD-11, and all passengers and crew. The Transportation Safety Board (TSB) of Canada, Fire and Explosion Group launched a four year investigation into the incident in an attempt to understand the cause and subsequent mechanisms which lead to the rapid spread of the in-flight fire. As part of this investigation, the SMARTFIRE Computational Fluid Dynamics (CFD) software was used to predict the ‘possible’ development of the fire and associated smoke movement. In this paper the CFD fire simulations are presented and model predictions compared with key findings from the investigation. The model predictions are shown to be consistent with a number of the investigation findings associated with the early stages of the fire development. The analysis makes use of simulated pre-fire airflow conditions within the MD-11 cockpit and above ceiling region presented in an earlier publication (Part I) which was published in The Aeronautical Journal in January 2006.
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Evelyn, Angelia. "Reviewer Acknowledgements." Applied Finance and Accounting 7, no. 1 (February 26, 2021): 58. http://dx.doi.org/10.11114/afa.v7i1.5178.
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Applied Finance and Accounting [AFA] would like to acknowledge the following reviewers for their assistance with peer review of manuscripts for this issue. Many authors, regardless of whether AFA publishes their work, appreciate the helpful feedback provided by the reviewers. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Each of the reviewers listed below returned at least one review for this issue.Reviewers for Volume 7, Number 1Aderaw Gashayie Ayaliew, Higher institution, EthiopiaAnastasia Kopaneli, University of Patras, GreeceAndrey Kudryavtsev, The Max Stern Yezreel Valley Academic College, IsraelFahri ÖZSUNGUR, Adana Science and Technology University, TurkeyGheorghe Morosan, Stefan Cel Mare University Suceava Romania, RomaniaHaitham Nobanee, Abu Dhabi University, UAEHajar Jahangard , Central Bank of Iran(CBI), IranJayendra S. Gokhale, Embry-Riddle Aeronautical University, USAMarco Muscettola, Independent researcher, ItalyMawih Kareem Alani, Dhofar University, OmanShahram Fattahi, Razi University,, IranYu Peng Lin, University of Detroit Mercy, USA Angelia EvelynEditorial AssistantOn behalf of,The Editorial Board of Applied Finance and AccountingRedfame Publishing9450 SW Gemini Dr. #99416Beaverton, OR 97008, USAURL: http://afa.redfame.com
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Evelyn, Angelia. "Reviewer Acknowledgements." Applied Finance and Accounting 7, no. 2 (July 28, 2021): 60. http://dx.doi.org/10.11114/afa.v7i2.5309.
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Applied Finance and Accounting [AFA] would like to acknowledge the following reviewers for their assistance with peer review of manuscripts for this issue. Many authors, regardless of whether AFA publishes their work, appreciate the helpful feedback provided by the reviewers. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Each of the reviewers listed below returned at least one review for this issue.Reviewers for Volume 7, Number 2Adina Criste, “Victor Slavescu” Centre for Financial and Monetary Research, Romanian Academy, RomaniaAnastasia Kopaneli, University of Patras, GreeceDapeng Zhu, Shanghai Lixin University of Accounting and Finance, ChinaFabio Rizzato, University of Turin, ItalyHaitham Nobanee, Abu Dhabi University, UAEHajar Jahangard, Central Bank of Iran(CBI), IranHassan Rkein, Al Maaref University , LebanonJayendra S. Gokhale, Embry-Riddle Aeronautical University, USAMawih Kareem Alani, Dhofar University, OmanVolodymyr Vysochansky, Uzhhorod National University, UkraineZi-Yi Guo, Wells Fargo Bank, N.A., USA Angelia EvelynEditorial AssistantOn behalf of,The Editorial Board of Applied Finance and AccountingRedfame Publishing9450 SW Gemini Dr. #99416Beaverton, OR 97008, USAURL: http://afa.redfame.com
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Evelyn, Angelia. "Reviewer Acknowledgements." Applied Finance and Accounting 6, no. 2 (August 28, 2020): 53. http://dx.doi.org/10.11114/afa.v6i2.4985.
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Applied Finance and Accounting [AFA] would like to acknowledge the following reviewers for their assistance with peer review of manuscripts for this issue. Many authors, regardless of whether AFA publishes their work, appreciate the helpful feedback provided by the reviewers. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Each of the reviewers listed below returned at least one review for this issue.Reviewers for Volume 6, Number 2Anastasia Kopaneli, University of Patras, GreeceAndrey Kudryavtsev, The Max Stern Yezreel Valley Academic College, IsraelAnna Viktorovna Kravchuk, Academy of the State Penitentiary Service, UkraineAnthony Okafor, University of Louisville, USADapeng Zhu, Shanghai Lixin University of Accounting and Finance, ChinaFabio Rizzato, University of Turin, ItalyGheorghe Morosan, Stefan Cel Mare University Suceava Romania, RomaniaJayendra S. Gokhale, Embry-Riddle Aeronautical University, USALuca Sensini, University of Salerno, ItalyLuo Yongli, Houston Baptist University, United StatesMarco Muscettola, Independent researcher, ItalyMohammad Sami Ali Al-Dahrawi, Zarqa University, JordanNicoleta Radneantu, Romanian – American University, RomanianRui Fernandes, Porto Accounting and Business School, PortugalShahram Fattahi, Razi University, Iran Angelia EvelynEditorial AssistantOn behalf of,The Editorial Board of Applied Finance and AccountingRedfame Publishing9450 SW Gemini Dr. #99416Beaverton, OR 97008, USAURL: http://afa.redfame.com
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C.A. Prado, Malila, and Patricia Tosquil Lucks. "Designing the Radiotelephony Plain English Corpus (RTPEC): A specialized spoken English language corpus towards a description of aeronautical communications in non-routine situations." Research in Corpus Linguistics 7 (2019): 113–28. http://dx.doi.org/10.32714/ricl.07.06.
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Pilots and air traffic controllers need to undergo a specific English test in order to be granted a license for international operations. A language proficiency scale was developed to serve as a parameter to all aviation regulatory agencies throughout the world by targeting the language produced specifically by air traffic controllers and pilots in radio communications when non-routine situations (such as technical problems, bird strike, changes in weather, health problems on board, etc.) occur (ICAO 2010). However, there is a lack of empirical investigation which could shed light upon this particular register helping the users of the scale with its understanding. In an attempt to fill this gap, this paper outlines a compilation of the Radiotelephony Plain English Corpus (RPTEC), a spoken corpus of aeronautical communication consisting of transcriptions of exchanges between pilots and air traffic controllers in non-routine situations for research and pedagogical purposes. By presenting steps taken during the process, we intend to provide fellow researchers with data which may suit other purposes and yield further analyses, as well as enlighten similar investigations in the field of English for Specific Purposes.
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Mayalu, Alfred, Kevin Kochersberger, Barry Jenkins, and François Malassenet. "Lidar Data Reduction for Unmanned Systems Navigation in Urban Canyon." Remote Sensing 12, no. 11 (May 27, 2020): 1724. http://dx.doi.org/10.3390/rs12111724.
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This paper introduces a novel protocol for managing low altitude 3D aeronautical chart data to address the unique navigational challenges and collision risks associated with populated urban environments. Based on the Open Geospatial Consortium (OGC) 3D Tiles standard for geospatial data delivery, the proposed extension, called 3D Tiles Nav., uses a navigation-centric packet structure which automatically decomposes the navigable regions of space into hyperlocal navigation cells and encodes environmental surfaces that are potentially visible from each cell. The developed method is sensor agnostic and provides the ability to quickly and conservatively encode visibility directly from a region by enabling an expanded approach to viewshed analysis. In this approach, the navigation cells themselves are used to represent the intrinsic positional uncertainty often needed for navigation. Furthermore, we present in detail this new data format and its unique features as well as a candidate framework illustrating how an Unmanned Traffic Management (UTM) system could support trajectory-based operations and performance-based navigation in the urban canyon. Our results, experiments, and simulations conclude that this data reorganization enables 3D map streaming using less bandwidth and efficient 3D map-matching systems with limited on-board compute, storage, and sensor resources.
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Evelyn, Angelia. "Reviewer Acknowledgements." Applied Finance and Accounting 4, no. 2 (August 5, 2018): 79. http://dx.doi.org/10.11114/afa.v4i2.3524.
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Applied Finance and Accounting [AFA] would like to acknowledge the following reviewers for their assistance with peer review of manuscripts for this issue. Many authors, regardless of whether AFA publishes their work, appreciate the helpful feedback provided by the reviewers. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Each of the reviewers listed below returned at least one review for this issue.Reviewers for Volume 4, Number 2Amira Houaneb, University Ibn Khaldoun, TunisiaAnastasia Kopaneli, University of Patras, GreeceAndrey Kudryavtsev, The Max Stern Yezreel Valley Academic College, IsraelAugustine Akhidime, Benson Idahosa University, NigeriaDesti Kannaiah, James Cook University, SingaporeFabio Rizzato, University of Turin, ItalyGheorghe Morosan, Stefan Cel Mare University Suceava Romania, RomaniaIoan Bogdan Robu, Alexandru Ioan Cuza University of Iasi, RomaniaJayendra S. Gokhale, Embry-Riddle Aeronautical University, USALingesiya Kengatharan, University of Jaffna, Sri LankaMarco Muscettola, Independent researcher, ItalyMohammad Sami Ali Al-Dahrawi, Zarqa University, JordanMojeed Idowu John Odumeso-Jimoh, Noble Integrated Resources & Management, NigeriaNikolay Patonov, European Polytechnical University, BulgariaPeibiao Zhao, Nanjing University of Science and Technology, ChinaRui Fernandes, Porto Accounting and Business School, PortugalSawsan Saadi Halbouni, Canadian University Dubai, UAEVolodymyr Vysochansky, Uzhhorod National University, UkraineAngelia EvelynEditorial AssistantOn behalf of,The Editorial Board of Applied Finance and AccountingRedfame Publishing9450 SW Gemini Dr. #99416Beaverton, OR 97008, USAE-mail: afa@redfame.comURL: http://afa.redfame.com
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Cardoso, Rafael C., Georgios Kourtis, Louise A. Dennis, Clare Dixon, Marie Farrell, Michael Fisher, and Matt Webster. "A Review of Verification and Validation for Space Autonomous Systems." Current Robotics Reports 2, no. 3 (June 18, 2021): 273–83. http://dx.doi.org/10.1007/s43154-021-00058-1.
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Abstract Purpose of Review The deployment of hardware (e.g., robots, satellites, etc.) to space is a costly and complex endeavor. It is of extreme importance that on-board systems are verified and validated through a variety of verification and validation techniques, especially in the case of autonomous systems. In this paper, we discuss a number of approaches from the literature that are relevant or directly applied to the verification and validation of systems in space, with an emphasis on autonomy. Recent Findings Despite advances in individual verification and validation techniques, there is still a lack of approaches that aim to combine different forms of verification in order to obtain system-wide verification of modular autonomous systems. Summary This systematic review of the literature includes the current advances in the latest approaches using formal methods for static verification (model checking and theorem proving) and runtime verification, the progress achieved so far in the verification of machine learning, an overview of the landscape in software testing, and the importance of performing compositional verification in modular systems. In particular, we focus on reporting the use of these techniques for the verification and validation of systems in space with an emphasis on autonomy, as well as more general techniques (such as in the aeronautical domain) that have been shown to have potential value in the verification and validation of autonomous systems in space.
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Evelyn, Angelia. "Reviewer Acknowledgements." Applied Finance and Accounting 6, no. 1 (February 27, 2020): 79. http://dx.doi.org/10.11114/afa.v6i1.4735.
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Applied Finance and Accounting [AFA] would like to acknowledge the following reviewers for their assistance with peer review of manuscripts for this issue. Many authors, regardless of whether AFA publishes their work, appreciate the helpful feedback provided by the reviewers. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Each of the reviewers listed below returned at least one review for this issue.Reviewers for Volume 6, Number 1Adina Criste, “Victor Slavescu” Centre for Financial and Monetary Research, Romanian Academy, RomaniaAnastasia Kopaneli, University of Patras, GreeceAndrey Kudryavtsev, The Max Stern Yezreel Valley Academic College, IsraelAnthony Okafor, University of Louisville, USAAugustine Akhidime, Benson Idahosa University, NigeriaDesti Kannaiah, James Cook University, SingaporeFeng Jui Hsu, National Taichung University of Science and Technology, TaiwanGheorghe Morosan, Stefan Cel Mare University Suceava Romania, RomaniaHajar Jahangard , Central Bank of Iran(CBI), IranJayendra S. Gokhale, Embry-Riddle Aeronautical University, USALektore Oltiana Muharremi, University of Vlora, AlbaniaMarco Muscettola, Independent researcher, ItalyMawih Kareem Alani, Dhofar University, OmanMohammad Sami Ali Al-Dahrawi, Zarqa University, JordanNicoleta Radneantu, Romanian – American University, RomanianNikolay Patonov, European Polytechnical University, BulgariaNoriaki Okamoto, Rikkyo University, JapanRui Fernandes, Porto Accounting and Business School, PortugalShahram Fattahi, Razi University,, IranVolodymyr Vysochansky, Uzhhorod National University, UkraineZi-Yi Guo, Wells Fargo Bank, N.A., USA Angelia EvelynEditorial AssistantOn behalf of,The Editorial Board of Applied Finance and AccountingRedfame Publishing9450 SW Gemini Dr. #99416Beaverton, OR 97008, USAURL: http://afa.redfame.com
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Evelyn, Angelia. "Reviewer Acknowledgements." Applied Finance and Accounting 5, no. 1 (February 25, 2019): 68. http://dx.doi.org/10.11114/afa.v5i1.4093.
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Reviewer AcknowledgementsApplied Finance and Accounting [AFA] would like to acknowledge the following reviewers for their assistance with peer review of manuscripts for this issue. Many authors, regardless of whether AFA publishes their work, appreciate the helpful feedback provided by the reviewers. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Each of the reviewers listed below returned at least one review for this issue.Reviewers for Volume 5, Number 1 Anastasia Kopaneli, University of Patras, GreeceNoriaki Okamoto, Rikkyo University, JapanVineet Chouhan, Sir Padampat Singhania University, IndiaYu Peng Lin, University of Detroit Mercy, USAMarco Muscettola, Independent researcher, ItalyZi-Yi Guo, Wells Fargo Bank, N.A., USALektore Oltiana Muharremi, University of Vlora, AlbaniaJayendra S. Gokhale, Embry-Riddle Aeronautical University, USAMohamed Jalloh, Economic Community of West African States (ECOWAS), NigeriaRui Fernandes, Porto Accounting and Business School, PortugalNikolay Patonov, European Polytechnical University, BulgariaMojeed Idowu John Odumeso-Jimoh, Noble Integrated Resources & Management, NigeriaFlorin Peci, University of Peja, KosovoGheorghe Morosan, Stefan Cel Mare University Suceava Romania, RomaniaNicoleta Radneantu, Romanian – American University, RomanianAugustine Akhidime, Benson Idahosa University, NigeriaHajar Jahangard , Central Bank of Iran(CBI), IranHassan Rkein , Al Maaref University , LebanonAndrey Kudryavtsev, The Max Stern Yezreel Valley Academic College, IsraelIoan Bogdan Robu, Alexandru Ioan Cuza University of Iasi, RomaniaLingesiya Kengatharan, University of Jaffna, Sri LankaMohammad Sami Ali Al-Dahrawi, Zarqa University, Jordan Angelia EvelynEditorial AssistantOn behalf of,The Editorial Board of Applied Finance and AccountingRedfame Publishing9450 SW Gemini Dr. #99416Beaverton, OR 97008, USAE-mail: afa@redfame.comURL: http://afa.redfame.com
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Lin, Chin E., Pei-Chi Shao, and Yu-Yuan Lin. "System Operation of Regional UTM in Taiwan." Aerospace 7, no. 5 (May 25, 2020): 65. http://dx.doi.org/10.3390/aerospace7050065.
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The hierarchical unmanned aerial systems (UAS) traffic management (UTM) is proposed for UAS operation in Taiwan. The proposed UTM is constructed using the similar concept of ATM from the transport category aviation system. Based on the airspace being divided by 400 feet of altitude, the RUTM (regional UTM) is managed by the local government and the NUTM (national UTM) by the Civil Aeronautical Administration (CAA). Under construction of the UTM system infrastructure, this trial tests examine the effectiveness of UAV surveillance under 400 feet using automatic dependent surveillance-broadcast (ADS-B)-like on-board units (OBU). The ground transceiver station (GTS) is designed with the adoptable systems. In these implementation tests, five long-range wide area network (LoRa) gateways and one automatic packet reporting system (APRS) I-Gate are deployed to cover the Tainan Metropolitan area. The data rates are set in different systems from 8 to 12 s to prevent from data conflict or congestion. The signal coverage, time delay, data distribution, and data variance in communication are recorded and analyzed for RUTM operation. Data streaming and Internet manipulation are verified with cloud system stability and availability. Simple operational procedures are defined with priority for detect and avoid (DAA) for unmanned aerial vehicles (UAVs). Mobile communication and Zello broadcasts are introduced and applied to establish controller-to-pilot communication (CPC) for DAA. The UAV flight tests are generally beyond visual line-of-sight (BVLOS) near suburban areas with flight distances to 8 km. On the GTS deployment, six test locations examine communication coverage and effectiveness using ADS-B like OBUs. In system verification, the proposed ADS-B like OBU works well in the UTM infrastructure. The system feasibility is proven with support of receiving data analysis and transceiver efficiency. The trial test supports RUTM in Taiwan for UAV operations.
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Pak, Gi Deok, Andrea Haekyung Haselbeck, Hyeong Won Seo, Isaac Osei, John Amuasi, Robert F. Breiman, Ligia Maria Cruz Espinosa, et al. "The HPAfrica protocol: Assessment of health behaviour and population-based socioeconomic, hygiene behavioural factors - a standardised repeated cross-sectional study in multiple cohorts in sub-Saharan Africa." BMJ Open 8, no. 12 (December 2018): e021438. http://dx.doi.org/10.1136/bmjopen-2017-021438.
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IntroductionThe objective of the Health Population Africa (HPAfrica) study is to determine health behaviour and population-based factors, including socioeconomic, ethnographic, hygiene and sanitation factors, at sites of the Severe Typhoid Fever in Africa (SETA) programme. SETA aims to investigate healthcare facility-based fever surveillance in Burkina Faso, the Democratic Republic of the Congo, Ethiopia, Ghana, Madagascar and Nigeria. Meaningful disease burden estimates require adjustment for health behaviour patterns, which are assumed to vary among a study population.Methods and analysisFor the minimum sample size of household interviews required, the assumptions of an infinite population, a design effect and age-stratification and sex-stratification are considered. In the absence of a population sampling frame or household list, a spatial approach will be used to generate geographic random points with an Aeronautical Reconnaissance Coverage Geographic Information System tool. Printouts of Google Earth Pro satellite imagery visualise these points. Data of interest will be assessed in different seasons by applying population-weighted stratified sampling. An Android-based application and a web service will be developed for electronic data capturing and synchronisation with the database server in real time. Sampling weights will be computed to adjust for possible differences in selection probabilities. Descriptive data analyses will be performed in order to assess baseline information of each study population and age-stratified and sex-stratified health behaviour. This will allow adjusting disease burden estimates. In addition, multivariate analyses will be applied to look into associations between health behaviour, population-based factors and the disease burden as determined in the SETA study.Ethics and disseminationEthic approvals for this protocol were obtained by the Institutional Review Board of the International Vaccine Institute (No. 2016–0003) and by all collaborating institutions of participating countries. It is anticipated to disseminate findings from this study through publication on a peer-reviewed journal.
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Fusaro, Roberta, Nicole Viola, Marco Fioriti, Davide Ferretto, and Sara Cresto Aleina. "Preliminary design of a cabin escape system for a suborbital vehicle aimed at parabolic flights." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 231, no. 12 (August 2, 2017): 2179–91. http://dx.doi.org/10.1177/0954410017723671.
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The paper deals with the conceptual design and sizing of a cabin escape system to be applied to a trans-atmospheric transportation system. At first, the role of suborbital vehicles towards the development of a hypersonic transportation system is presented. From this analysis, it has been clear that one of the key points in enhancing the public consensus is to demonstrate a higher level of safety and reliability with respect to the current space vehicles. Since the time of the Space Shuttle enterprise, the development of a proper escape system has been considered crucial to diminish the risk of loss of lives per mission, moving from space-like reliability characteristics to values closer to the aeronautical case. In particular, this paper presents the conceptual design of an escape system for a single stage vehicle aimed at parabolic flights. The proposed design methodology starts with the identification of the major requirements that will lead the design and sizing activities. Then, special attention is devoted to the identification of the required capabilities of a Cabin Escape System and to the selection of the proper subsystems able to guarantee these functionalities. Indeed, considering the high-level of complexity of such a system, during the design process, specific attention should be paid to the impact of on-board systems integration on the overall transportation system architecture and layout. At this purpose, a proper utilization of CAD models can ease the integration process allowing fast verification of mass and volume budgets as well as integrated simulation techniques could be useful. Furthermore, the possibility of exploiting this system during the different phases of the mission should be properly evaluated and, eventually, a preliminary impact risk analysis is reported.
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Calvo, Isidro, José Miguel Gil-García, Eneko Villar, Aitor Fernández, Javier Velasco, Oscar Barambones, Cristian Napole, and Pablo Fernández-Bustamante. "Design and Performance of a XBee 900 MHz Acquisition System Aimed at Industrial Applications." Applied Sciences 11, no. 17 (September 3, 2021): 8174. http://dx.doi.org/10.3390/app11178174.
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Wireless technologies are being introduced in industrial applications since they provide certain benefits, such as the flexibility to modify the layout of the nodes, improving connectivity with monitoring and decision nodes, adapting to mobile devices and reducing or eliminating cabling. However, companies are still reluctant to use them in time-critical applications, and consequently, more research is needed in order to be massively deployed in industrial environments. This paper goes in this direction by presenting a novel wireless acquisition system aimed at industrial applications. This system embeds a low-cost technology, such as XBee, not frequently considered for deterministic applications, for deploying industrial applications that must fulfill certain QoS requirements. The use of XBee 900 MHz modules allows for the use of the 2.4 GHz band for other purposes, such as connecting to cloud services, without causing interferences with critical applications. The system implements a time-slotted media access (TDMA) approach with a timely transmission scheduling of the messages on top of the XBee 900 MHz technology. The paper discusses the details of the acquisition system, including the topology, the nodes involved, the so-called coordinator node and smart measuring nodes, and the design of the frames. Smart measuring nodes are implemented by an original PCB which were specifically designed and manufactured. This board eases the connection of the sensors to the acquisition system. Experimental tests were carried out to validate the presented wireless acquisition system. Its applicability is shown in an industrial scenario for monitoring the positioning of an aeronautical reconfigurable tooling prototype. Both wired and wireless technologies were used to compare the variables monitored. The results proved that the followed approach may be an alternative for monitoring big machinery in indoor industrial environments, becoming especially suitable for acquiring values from sensors located in mobile parts or difficult-to-reach places.
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Boone, Louis E., and James J. Johnson. "The Impact Of Airline Deregulation On Rates And Services." Journal of Applied Business Research (JABR) 5, no. 4 (October 25, 2011): 52. http://dx.doi.org/10.19030/jabr.v5i4.6334.
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The Airline Deregulation Act of 1978 granted considerable freedom to the airlines in establishing fares and in choosing new routes. It also permitted new carriers to enter the industry and abolished the Civil Aeronautics Board in 1985. This article examines the impact of industry deregulation on the level of rates and services in the decade since passage of the federal law.
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SUHIR, E. "STRUCTURAL DYNAMICS OF ELECTRONIC SYSTEMS." Modern Physics Letters B 27, no. 07 (March 19, 2013): 1330004. http://dx.doi.org/10.1142/s0217984913300044.
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The published work on analytical ("mathematical") and computer-aided, primarily finite-element-analysis (FEA) based, predictive modeling of the dynamic response of electronic systems to shocks and vibrations is reviewed. While understanding the physics of and the ability to predict the response of an electronic structure to dynamic loading has been always of significant importance in military, avionic, aeronautic, automotive and maritime electronics, during the last decade this problem has become especially important also in commercial, and, particularly, in portable electronics in connection with accelerated testing of various surface mount technology (SMT) systems on the board level. The emphasis of the review is on the nonlinear shock-excited vibrations of flexible printed circuit boards (PCBs) experiencing shock loading applied to their support contours during drop tests. At the end of the review we provide, as a suitable and useful illustration, the exact solution to a highly nonlinear problem of the dynamic response of a "flexible-and-heavy" PCB to an impact load applied to its support contour during drop testing.
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Ojeda-Rodríguez, Álvaro, Pablo González-Vizuete, Joaquín Bernal-Méndez, and María A. Martín-Prats. "A Survey on Bidirectional DC/DC Power Converter Topologies for the Future Hybrid and All Electric Aircrafts." Energies 13, no. 18 (September 17, 2020): 4883. http://dx.doi.org/10.3390/en13184883.
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DC-DC isolated converters allowing a bidirectional flow of energy between High-Voltage DC and Low-Voltage DC networks have been proposed to be integrated in future on board power distribution systems. These converters must meet the specially stringent efficiency and power density requirements that are typical of the aeronautic industry. This makes it specially challenging to determine which converter topology is best suited for each particular application. This work presents a thorough review of several topologies of bidirectional DC-DC power converters that are considered good candidates to meet certain important aeronautic requirements, as those related with high efficiency and high power density. We perform simulations on virtual prototypes, constructed by using detailed component models, and optimized following design criteria that are in accordance with those typically imposed by aeronautic requirements. This comparative analysis is aimed to clearly identify the advantages and drawbacks of each topology, and to relate them with the required voltage and power levels. As an outcome, we point out the topologies that, for the required power level at the chosen switching frequencies, yield higher efficiency in the whole range of required operation points and that are expected to allow more important weight reductions.
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Rose, Nancy L. "After Airline Deregulation and Alfred E. Kahn." American Economic Review 102, no. 3 (May 1, 2012): 376–80. http://dx.doi.org/10.1257/aer.102.3.376.
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Among Alfred E. “Fred” Kahn's many accomplishments, none is better remembered than his pivotal role in deregulation of the US airline industry. Kahn's commitment to marry core microeconomic principles with institutional analysis, willingness as Chairman of the Civil Aeronautics Board to step outside the “regulation as usual box,” and appealing wit made him the face of the Airline Deregulation Act of 1978, one of the great microeconomic policy triumphs. Lessons drawn from Kahn's work and the airline deregulation experience remain instructive for current academic research and regulatory policy design across broad sectors of the economy.
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Grandjean, Isabelle, and Nicolas Guéguen. "Testing a Binding Communication Strategy in a Company: How Could Persuasive Information be More Efficient?" Social Behavior and Personality: an international journal 39, no. 9 (October 14, 2011): 1209–16. http://dx.doi.org/10.2224/sbp.2011.39.9.1209.
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The aim in this study was to improve persuasive communication in a French workplace context. Within the framework of a global progress plan, visual communication changes were proposed in an aeronautical factory. We applied the paradigm of binding communication to contribute to making communication more effective. In accordance with the theory of commitment, we induced employees to perform freely a visible preparatory act (i.e., answer a questionnaire) before the upgrading of notice boards and institution of a monthly newsletter. We compared behavioral variables before and after the introduction of these changes. The results indicated that employees consulted the newly available information more frequently. Moreover, according to 2 performance indicators, they significantly enhanced the quality of their work.
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Dyantyi, Noluntu, Adrian Parsons, Cordellia Sita, and Sivakumar Pasupathi. "PEMFC for aeronautic applications: A review on the durability aspects." Open Engineering 7, no. 1 (November 10, 2017): 287–302. http://dx.doi.org/10.1515/eng-2017-0035.
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AbstractProton exchange membrane fuel cells (PEMFC) not only offer more efficient electrical energy conversion, relative to on-ground/backup turbines but generate by-products useful in aircraft such as heat for ice prevention, deoxygenated air for fire retardation and drinkable water for use on-board. Consequently, several projects (e.g. DLR-H2 Antares and RAPID2000) have successfully tested PEMFC-powered auxiliary unit (APU) for manned/unmanned aircraft. Despite the progress from flying PEMFC-powered small aircraft with 20 kW power output as high as 1 000 m at 100 km/h to 33 kW at 2 558 m, 176 km/h [1, 2, 3], durability and reliability remain key challenges. This review reports on the inadequate understanding of behaviour of PEMFC under aeronautic conditions and the lack of predictive methods conducive for aircraft that provide real-time information on the State of Health of PEMFCs.Highlights: The main research findings are–To minimize performance loss due to high altitude and inclination by adjusting cathode stoichiometric ratio.–To improve quality of oxygen-depleted air by controlling operating temperature and stoichiometric ratio.–Need to devise real time prediction methods conducive for determining PEMFC SoH in aircraft.
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Cavallo, A., G. Canciello, and B. Guida. "Energy Storage System Control for Energy Management in Advanced Aeronautic Applications." Mathematical Problems in Engineering 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/4083132.
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In this paper an issue related to electric energy management on board an aircraft is considered. A battery pack is connected to a high-voltage bus through a controlled Battery Charge/Discharge Unit (BCDU) that makes the overall behaviour of the battery “intelligent.” Specifically, when the aeronautic generator feeding the high-voltage bus has enough energy the battery is kept under charge, while if more loads are connected to the bus, so that the overload capacity of the generator is exceeded, the battery “helps” the generator by releasing its stored energy. The core of the application is a robust, supervised control strategy for the BCDU that automatically reverts the flow of power in the battery, when needed. Robustness is guaranteed by a low-level high gain control strategy. Switching from full-charge mode (i.e., when the battery absorbs power from the generator) to generator mode (i.e., when the battery pumps energy on the high-voltage bus) is imposed by a high-level supervisor. Different from previous approaches, mathematical proofs of stability are given for the controlled system. A switching implementation using a finite-time convergent controller is also proposed. The effectiveness of the proposed strategy is shown by detailed simulations in Matlab/Stateflow/SimPowerSystem.
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Morard, Adrien, Jean-Christophe Riou, and Gabriel Pares. "Flip chip reliability and intermetallic compounds for SIP module." International Symposium on Microelectronics 2018, no. 1 (October 1, 2018): 000029–36. http://dx.doi.org/10.4071/2380-4505-2018.1.000029.
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Abstract In the aeronautical field, the electronic integration roadmaps show that the weight and the volume dedicated to on-board electronics must be reduced by a factor of 4 to 10 compared to the existing ones for the most recurrent functions in the next years. This work is an opening to new technological solutions to increase our ability to save space while improving the overall reliability of the system. The first part of this work is dedicated to the study of “system in package” (SiP) solutions based on different substrates, namely organic or silicon. Generally speaking a SIP is composed by several active and passive components stacked on an interposer. Benchmarks done by our laboratory have demonstrated that in terms of substrate, embedded die technology leads to several advantages compared to 3D TSV or TGV based packaging approaches. The benefits provided by this substrate is the possibility to embed some surface mount technologies (SMT), some bare chips or some integrated passives devices (IPD) banks directly above or below the stacked active components. This way, top and bottom surface of the substrate can be used to integrate several heterogeneous dies side by side while using low profile flip-chip assemblies on the C4 side. Finally, in this kind of 3D architecture, this embedded technology enable a gain of integration, without using costly TSV connections. Substrates of high quality allow a reduction of I/Os interconnection pitches leading to very aggressive integration down to 50μm. Secondly, a 3D stack with 3 levels of components, as described above, leads to 2 or 3 REACH compliant sequential assembly processes, depending of the needs. In order to consider all the solutions for an optimized overall integration with high reliability, this work focuse on the study one simple SIP which includes the top die assembled by flip-chip. For the flip chip hybridization on organic interposers copper pillars technologies will be studied. The objective is to understand in depth the processes and to obtain information on the reliability aspect after thermal cycling stress of the flip chip assembly. Thirdly, we built many silicon test chips with different characteristics with a dedicated daisy chain test vehicle. The different parameters are: chip's thicknesses (50 to 200 μm), chip's sizes (2 to 8 mm), bump structures (diameter), the pitches of the interconnection (from 50 to 250 μm) and the number of interconnection rows. Designs were chosen in order to fit real operational configurations. Moreover, these configurations are interesting to build a comprehensive model in order to understand the failure mechanisms. These chips are then stacked by flip chip on the silicon and on the organic substrate. We are also designing the both configurations of substrates. Only the production of the organics part is outsourced. Fourth, for all assemblies thermos-cycling test results will be evaluated with thermo mechanical simulations done by finite elements. 3D models will take into account the different geometries in order to understand and quantify the various key parameters. The analysis will mainly focus on 3D interconnections. Design rules based on the results will be derivated. The aim is to obtain dimensional criteria based on stress versus deformation responses. Lastly intermetallic formation will be evaluated using EBSD analysis to obtain better understanding of copper pillar failures for this specific bumps size. Issued information's will be exploited for designing the future functional SIP. The ultimate goal of this work is finally to define mechanical design rules that can then be used in functional SiP modules.
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Patrícia Mesquita Vilas Boas, Adriana Geórgia Davim Bastos, and Walter Kischinhevsky. "Electronic patient medical records: Agility in the management of medical-expert information in the aeronautical health boards." World Journal of Advanced Research and Reviews 11, no. 3 (September 30, 2021): 206–12. http://dx.doi.org/10.30574/wjarr.2021.11.3.0441.
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The Electronic Patient Record (EPR) is already a reality in the practice of many offices, diagnostic centers and hospitals. The Federal Council of Medicine (FCM) regulated its use, through FCM Resolution n° 1,821/2007 In the Health Boards (HB) of the COMAER, agencies responsible for doing the medical-expert examinations of the military force, the paper record is still the rule. There is no automatic sharing of information between HB. In this context, it is perceived the need for the implementation of the unified EPR for the COMAER HB, because it speeds up the sharing of medical-expert information of the military and allows the military to carry out their health inspections in different locations, not interfering in the planning of missions so peculiar to the force, saving time and costs, speeding up the release of the results and control of inspections. The research thus consists of the qualitative approach, with exploratory objective and bibliographic procedure, carried out in the Scielo and Google Scholar databases, based on the discussion in ten articles, in addition to the FCM Resolutions. It was noted that the perspective that EPR has direct advantages for the Institution, however, requires an abrupt cultural change to the model that is made today, to provide a greater speed among the HB, even if in the transition phase, it is chosen to use in parallel in paper and Information and Communication Technologies. Therefore, the implementation of EPR in HB can provide both multidisciplinary teams and users of COMAER HB, a more efficient medical-expert assistance by promoting information sharing and agility in the performance of Health Inspections.
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Jones, R. I. "The more electric aircraft—assessing the benefits." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 216, no. 5 (May 1, 2002): 259–69. http://dx.doi.org/10.1243/095441002321028775.
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The concept of the more electric aircraft (MEA), where electrical power is used for at least some of the on-board functions at present powered by hydraulics and pneumatics, has many claimed benefits and is far from new. However, almost all larger aircraft retain hydraulics and pneumatics. Over recent years there has been a great deal of interest in the MEA concept, with developments in relevant technologies and their adoption in other areas of engineering. In support of UK efforts on this and related concepts, the College of Aeronautics has been performing studies since the mid 1980s to assess the benefits of changes. This paper describes the background to these studies and the relationships between them as well as some of their findings, concluding that it is important that such assessment work should be continued in the future.
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Sun, Rong Chun, and Ming Qiu Li. "Analysis and Simulation System for Stepper Motor Controller." Applied Mechanics and Materials 457-458 (October 2013): 938–43. http://dx.doi.org/10.4028/www.scientific.net/amm.457-458.938.
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Stepper motors are wildly used in the many fields, such as CNC machine, motion robot, aeronautics and astronautics. To realize online precise measurement, error analysis and verification of control strategy, it is necessary to sample and analyze the driving signals of motors, and simulate mechanical motion in a computer. So a test, analysis and simulation system of stepper controllers was designed. Driving signals of stepper motors are synchronously sampled and analyzed by the unit of acquisition and analysis. A connecting Motherboard was used to link the various parts and finish the data transmission. The working states of motor divers under load were simulated by connecting motor driver to the simulation board of motor load. In the industrial computer, the control effects of multi-axis control system were displayed by 3D simulation. Test results show that the system is stable and reliable, and has a certain application value.
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Norton, Lord Kings. "The beginnings of jet propulsion." Aeronautical Journal 103, no. 1022 (April 1999): 200–209. http://dx.doi.org/10.1017/s0001924000096494.
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The chairman: I know that everyone here shares with me our pleasure in welcoming as our lecturer one of the most distinguished and one of the most erudite and delightful people of all those who over the years have made their mark on British aeronautics. Lord Kings Norton has been Chancellor of Cranfield Institute of Technology since 1969. He began his career in aviation sixty-one years ago at Cardington, as a young engineer working on the design and construction of that much maligned major project, the airship R101, and then subsequently as Dr. Harold Roxbee Cox (as many of us still remember him) he was the head of the Air Defence Department of the Royal Aircraft Establishment at Farnborough. Next he was Chief Technical Officer of the newly formed Air Registration Board before he returned to the RAE in 1939 as Superintendent of Scientific Research.
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Pitt, R. E., S. E. Clark, and B. Steets. "Development of treatment media for advanced stormwater treatment at an industrial site." Water Practice and Technology 14, no. 1 (December 8, 2018): 81–87. http://dx.doi.org/10.2166/wpt.2018.111.
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Abstract The Santa Susana Field Laboratory (SSFL) occupies about 2,850 acres and is located in Ventura County, California. The site is jointly owned by the Boeing Company and the federal government (the National Aeronautics and Space Administration administers the federal portion of the property). Much of the site was historically used as a rocket engine testing and energy research facility from 1949 to 1998. The site stormwater discharges are permitted by the Los Angeles Regional Water Quality Control Board through an individual industrial NPDES permit that includes numeric effluent limits for a wide range of constituents, including dioxins and metals. A large portion of the site uses distributed source stormwater controls with natural treatment systems utilizing chemically active media. As part of this approach, extensive research was conducted to develop a robust media for use in these controls to meet the discharge objectives. This paper describes the development of the media and its characteristics.
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Rose, Nancy L. "Fear of Flying? Economic Analyses of Airline Safety." Journal of Economic Perspectives 6, no. 2 (May 1, 1992): 75–94. http://dx.doi.org/10.1257/jep.6.2.75.
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The safety of the commercial airline industry has attracted considerable attention in the wake of airline deregulation, amid growing concerns that the historical superiority of U.S. jet carriers' safety records may have been linked to economic regulation of the industry by the Civil Aeronautics Board. These worries have energized economic research on a broad range of questions relating to airline safety. I describe our progress in answering four questions: First, has airline safety declined since deregulation? Second, how has airline deregulation affected the safety of travelers overall, (taking into account indirect channels through which airline deregulation may have changed travel risks, including the substitution of commuter airlines for jet service and the replacement of highway driving by air travel)? Third, what accounts for differences in safety performance across carriers? Fourth, what are the market penalties for airline accidents? (If consumers and insurance companies penalize airlines with worse safety records, carriers may be disinclined to reduce safety investment, even if regulatory changes would permit them to do so.)
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Sun, Xiaoqian, Weibin Dai, Yu Zhang, and Sebastian Wandelt. "Finding p-Hub Median Locations: An Empirical Study on Problems and Solution Techniques." Journal of Advanced Transportation 2017 (2017): 1–23. http://dx.doi.org/10.1155/2017/9387302.
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Hub location problems have been studied by many researchers for almost 30 years, and, accordingly, various solution methods have been proposed. In this paper, we implement and evaluate several widely used methods for solving five standard hub location problems. To assess the scalability and solution qualities of these methods, three well-known datasets are used as case studies: Turkish Postal System, Australia Post, and Civil Aeronautics Board. Classical problems in small networks can be solved efficiently using CPLEX because of their low complexity. Genetic algorithms perform well for solving three types of single allocation problems, since the problem formulations can be neatly encoded with chromosomes of reasonable size. Lagrangian relaxation is the only technique that solves reliable multiple allocation problems in large networks. We believe that our work helps other researchers to get an overview on the best solution techniques for the problems investigated in our study and also stipulates further interest on cross-comparing solution techniques for more expressive problem formulations.
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Grine, Fatima Zahraa, Oulaid Kamach, Abdelhakim Khatab, and Naoufal Sefiani. "An artificial immune system algorithm for solving the uncapacitated single allocation p-Hub median problem." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 3 (June 1, 2021): 2293. http://dx.doi.org/10.11591/ijece.v11i3.pp2293-2306.
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The present paper deals with a variant of hub location problems (HLP): the uncapacitated single allocation p-Hub median problem (USApHMP). This problem consists to jointly locate hub facilities and to allocate demand nodes to these selected facilities. The objective function is to minimize the routing of demands between any origin and destination pair of nodes. This problem is known to be NP-hard. Based on the artificial immune systems (AIS) framework, this paper develops a new approach to efficiently solve the USApHMP. The proposed approach is in the form of a clonal selection algorithm (CSA) that uses appropriate encoding schemes of solutions and maintains their feasibility. Comprehensive experiments and comparison of the proposed approach with other existing heuristics are conducted on benchmark from civil aeronautics board, Australian post, PlanetLab and Urand data sets. The results obtained allow to demonstrate the validity and the effectiveness of our approach. In terms of solution quality, the results obtained outperform the best-known solutions in the literature.
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Liu, Ling, Kevin Garrett, Eric S. Maddy, and Sid-Ahmed Boukabara. "Impact Assessment of Assimilating NASA’s RapidScat Surface Wind Retrievals in the NOAA Global Data Assimilation System." Monthly Weather Review 146, no. 4 (April 2018): 929–42. http://dx.doi.org/10.1175/mwr-d-16-0179.1.
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The National Aeronautics and Space Administration (NASA) RapidScat scatterometer on board the International Space Station (ISS) provides observations of surface winds that can be assimilated into numerical weather prediction (NWP) forecast models. In this study, the authors assess the data quality of the RapidScat Level 2B surface wind vector retrievals and the impact of those observations on the National Oceanic and Atmospheric Administration (NOAA) Global Forecast System (GFS). The RapidScat is found to provide quality measurements of surface wind speed and direction in nonprecipitating conditions and to provide observations that add both information and robustness to the global satellite observing system used in NWP models. The authors find that with an assumed uncertainty in wind speed of around 2 m s−1, the RapidScat has neutral impact on the short-range forecast of surface wind vectors in the tropics but improves both the analysis and background field of surface wind vectors. However, the deployment of RapidScat on the ISS presents some challenges for use of these wind vector observations in operational NWP, including frequent maneuvers of the spacecraft that could alter instrument performance.
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Rink, Tom, W. Paul Menzel, Liam Gumley, and Kathy Strabala. "HYDRA2: A Multispectral Data Analysis Toolkit for Sensors on Suomi-NPP and Other Current Satellite Platforms." Bulletin of the American Meteorological Society 97, no. 7 (July 1, 2016): 1283–94. http://dx.doi.org/10.1175/bams-d-14-00285.1.
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Abstract The Hyperspectral Data Viewer for Development of Research Applications, version 2 (HYDRA2), is a freeware-based multispectral analysis toolkit for satellite data that assists scientists in research and development, as well as education and training of remote sensing applications. HYDRA2 users can explore and visualize relationships between sensor measurements (brightness temperatures for infrared and reflectances for visible/near-infrared wavelengths) using spectral diagrams, cross sections, scatterplots, multiband combinations, and color enhancements on a pixel-by-pixel basis. HYDRA2 can be used with direct broadcast and archived data from sensors on board the National Oceanic and Atmospheric Administration (NOAA)/National Aeronautics and Space Administration (NASA) Suomi–National Polar-Orbiting Partnership (Suomi-NPP), NASA Aqua/Terra, European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) Meteorological Operational (MetOp), and Chinese Fengyun-3 platforms. This paper describes HYDRA2 and presents some examples using data retrievals from the Suomi-NPP Visible Infrared Imaging Radiometer Suite (VIIRS), Cross-Track Infrared Sounder (CrIS), Advanced Technology Microwave Sounder (ATMS), and Terra/Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) instruments.
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Ridwan, M. A., N. A. M. Radzi, W. S. H. M. W. Ahmad, I. S. Mustafa, N. M. Din, Y. E. Jalil, A. M. Isa, N. S. Othman, and W. M. D. W. Zaki. "Applications of Landsat-8 Data: a Survey." International Journal of Engineering & Technology 7, no. 4.35 (November 30, 2018): 436. http://dx.doi.org/10.14419/ijet.v7i4.35.22858.
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Landsat 8 was launched in 2013 by the National Aeronautics and Space Administration (NASA). On board of the Landsat 8 is the Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS). Data for visible, panchromatic band, short-wave infrared spectral bands are collected by the OLI while TIRS collect images in the thermal region. As data for Landsat 8 is available to be used for public, researchers have utilized the data for numerous applications. However, to the best of our knowledge, there is yet a review paper on the various applications of Landsat 8 data. Hence, this paper presented an innovative survey on Landsat 8 data in the application of agriculture and forestry, land use and mapping, geology, hydrology, coastal resources and environmental monitoring. The potential of utilizing Landsat 8 data for power utility companies is also discussed in this paper. As Landsat 8 data is predicted to be available for more years to come, this paper provides insight for researchers to utilize the data better for their research.
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Ćwiklak, Janusz, Marek Grzegorzewski, and Kamil Krasuski. "The Application of the BSSD Iono-Free Linear Combination Method in the Processing of Aircraft Positioning." Journal of KONES 26, no. 3 (September 1, 2019): 15–21. http://dx.doi.org/10.2478/kones-2019-0052.
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Abstract The article presents the results of research into the use of the differentiation technique of BSSD (Between Satellite Single Difference) observations for the Iono-Free LC combination (Linear Combination) in the GPS system for the needs of aircraft positioning. Within the conducted investigations, a positioning algorithm for the BSSD Iono-Free LC positioning method was presented. In addition, an experimental test was conducted, in which raw observational data and GPS navigation data were exploited in order to recover the aircraft position. The examination was conducted for the Cessna 172 and the on-board dual-frequency receiver Topcon HiperPro. The experimental test presents the results of average errors of determining the position of the Cessna 172 in the XYZ geocentric frame and in the ellipsoidal BLh frame. Furthermore, the article presents the results of DOP (Dilution of Precision) coefficients, the test of the Chi square internal reliability test and the HPL and VPL confidence levels in GNSS precision approach (PA) in air transport. The calculations were performed in the original APS software (APS Aircraft Positioning Software) developed in the Department of Air Navigation of the Faculty of Aeronautics at the Polish Air Force University.
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Rice, Stephen, and Scott R. Winter. "Which Passenger Emotions Mediate the Relationship Between Type of Pilot Configuration and Willingness to Fly in Commercial Aviation?" Aviation Psychology and Applied Human Factors 5, no. 2 (November 2015): 83–92. http://dx.doi.org/10.1027/2192-0923/a000081.
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Abstract. There have been a few studies that have examined how different pilot configurations affect aviation consumer perceptions about trust, comfort, and willingness to fly (e.g., Rice et al., 2014, Int J Aviation, Aeronautics, and Aerospace, 1, 1–12; Winter et al., in press , J Air Transp Management); however, to date, no study was found that has examined how the relationship between pilot configuration and willingness to fly might be mediated by different emotions. The purpose of this study was to fill this gap by examining how affect (emotion) mediates this relationship, and more specifically, which emotion(s) mediate. In two studies, participants were presented with different pilot configurations and asked to rate how they felt about them and how willing they would be to fly under those circumstances. Both studies revealed strong evidence that affect was a mediator in this relationship, and that anger, fear, and happiness were the significant emotions in play. The findings from this study provide information on how consumers view modifying the number of pilots that may be on board the aircraft compared with controlling the aircraft remotely. It also identifies that emotions play a significant role in these relationships.
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Kim, Yeanjae, Jieun Baek, and Yosoon Choi. "Smart Helmet-Based Personnel Proximity Warning System for Improving Underground Mine Safety." Applied Sciences 11, no. 10 (May 11, 2021): 4342. http://dx.doi.org/10.3390/app11104342.
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A smart helmet-based wearable personnel proximity warning system was developed to prevent collisions between equipment and pedestrians in mines. The smart helmet worn by pedestrians receives signals transmitted by Bluetooth beacons attached to heavy equipment, light vehicles, or dangerous zones, and provides visual LED warnings to the pedestrians and operators simultaneously. A performance test of the proposed system was conducted in an underground limestone mine. It was confirmed that as the transmission power of the Bluetooth beacon increased, the Bluetooth low energy (BLE) signal detection distance of the system also increased. The average BLE signal detection distance was at least 10 m, regardless of the facing angle between the smart helmet and Bluetooth beacon. The subjective workload for the smartphone-, smart glasses-, and smart helmet-based proximity warning system (PWS) was evaluated using the National Aeronautics and Space Administration task load index. All six workload parameters were the lowest when using the smart helmet-based PWS. The smart helmet-based PWS can provide visual proximity warning alerts to both the equipment operator and the pedestrian, and it can be expanded to provide worker health monitoring and hazard awareness functions by adding sensors to the Arduino board.
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Souza, Maria Nathalya Costa, Irineu Ferreira Da Silva Neto, Isadora Ellen Feitoza Ricardino, and Ana Emilia Formiga Marques. "Limitações na Previsão de Instabilidades de Produtos Farmacêuticos Induzidos Por Radiação Durante Voos Espaciais de Longa Duração." Ensaios e Ciência C Biológicas Agrárias e da Saúde 24, no. 3 (October 26, 2020): 250–54. http://dx.doi.org/10.17921/1415-6938.2020v24n3p250-254.
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Com as evoluções nos voos espaciais de humanos fora da Terra, a National Aeronautics and Space Administration (NASA) e seus parceiros internacionais encontram obstáculos relacionados à garantia da segurança dos astronautas, destacando-se a capacidade de fornecer um meio seguro e medicamentos eficazes, que possam de maneira suficiente gerenciar tanto condições médicas planejadas, quanto as imprevistas durante uma viagem espacial. Objetivou-se apresentar o entendimento atual sobre a estabilidade farmacêutica no ambiente de radiação espacial. Foi realizado um levantamento nas bases de dados científicos Nacional Center for Biotechnology Information, PubMed, SciELO e Science Direct, utilizando artigos datados entre os anos de 2016 a 2019, por meio dos descritores: Cosmic Radiation, Space Flight, Drug Stability, United States National Aeronautics e Space Administration. Foram incluídas publicações que envolvessem pesquisas na área de instabilidade de medicamentos, dentro do período delimitado, que apresentassem no idioma inglês, e que incluíssem pelo menos um dos descritores citados. Os produtos farmacêuticos podem se tornar instáveis através das alterações de qualquer uma das suas propriedades físicas ou químicas. Os estudos sobre voos espaciais são limitados, por isso, os desafios na tradução de evidências analógicas terrestres para voos espaciais acabam por impedir a capacidade em tirar conclusões significativas sobre a estabilidade dos produtos farmacêuticos durante a exploração espacial. Assim é necessário novos esforços em pesquisas que forneçam os dados dos voos e produtos farmacêuticos a bordo das plataformas de pesquisa disponíveis a fim de garantir a integridade da saúde da tripulação.
Palavras-chave: Fármacos. Instabilidade. Radiação. Voo Espacial.
Abstract
With the evolution in space flights of humans outside the Earth, NASA and its international partners related to ensuring the safety of astronauts, highlighting the ability to provide insurance and previous medicines, that sufficiently manage to manage both the planned medical conditions, as the unforeseen during a space trip. The objective was to present the current understanding of pharmaceutical stability in the space radiation environment. A survey was carried out in the scientific databases National Center for Biotechnology Information, PubMed, SciELO and Science Direct, using articles dated between 2016 and 2019, using the descriptors: Cosmic Radiation, Space Flight, Drug Stability, United States National Aeronautics and Space Administration. Publications involving research in the area of drug instability, within the defined period, published in the English language, and including at least one of the mentioned descriptors were published. Pharmaceutical products can become unstable by changing any of their physical or physical properties. Studies on space flights are invited, therefore, the challenges in translating analogue terrestrial evidence to space flights end up preventing the ability to take necessary to take away on the stability of pharmaceutical products during space exploration. Thus, new research efforts are needed to provide flight and pharmaceutical data on board the available research platforms to ensure the integrity of the crew's health.
Keywords: Drugs, Instability, Radiation, Space Flight.
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Marshak, Alexander, Jay Herman, Szabo Adam, Blank Karin, Simon Carn, Alexander Cede, Igor Geogdzhayev, et al. "Earth Observations from DSCOVR EPIC Instrument." Bulletin of the American Meteorological Society 99, no. 9 (September 2018): 1829–50. http://dx.doi.org/10.1175/bams-d-17-0223.1.
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AbstractThe National Oceanic and Atmospheric Administration (NOAA) Deep Space Climate Observatory (DSCOVR) spacecraft was launched on 11 February 2015 and in June 2015 achieved its orbit at the first Lagrange point (L1), 1.5 million km from Earth toward the sun. There are two National Aeronautics and Space Administration (NASA) Earth-observing instruments on board: the Earth Polychromatic Imaging Camera (EPIC) and the National Institute of Standards and Technology Advanced Radiometer (NISTAR). The purpose of this paper is to describe various capabilities of the DSCOVR EPIC instrument. EPIC views the entire sunlit Earth from sunrise to sunset at the backscattering direction (scattering angles between 168.5° and 175.5°) with 10 narrowband filters: 317, 325, 340, 388, 443, 552, 680, 688, 764, and 779 nm. We discuss a number of preprocessing steps necessary for EPIC calibration including the geolocation algorithm and the radiometric calibration for each wavelength channel in terms of EPIC counts per second for conversion to reflectance units. The principal EPIC products are total ozone (O3) amount, scene reflectivity, erythemal irradiance, ultraviolet (UV) aerosol properties, sulfur dioxide (SO2) for volcanic eruptions, surface spectral reflectance, vegetation properties, and cloud products including cloud height. Finally, we describe the observation of horizontally oriented ice crystals in clouds and the unexpected use of the O2 B-band absorption for vegetation properties.