1,720,955 research outputs found
UAS Regulations in The Aspect of Unmanned Aviation Safety
Get PDFAbstract: The dynamic development of unmanned aviation forced the definition of the rules for performing UAS flight operations. The UAS regulations set the rules for the use of unmanned aerial vehicles and organize their functioning in integration with manned aviation. The paramount goal of the introduced regulations and provisions is to ensure an appropriate level of safety. Regulations should take into account both the current development needs of the industry and clearly defined safety objectives. It is important to all aviation stakeholders that, despite the shared use of a part of the airspace by both types of aviation, public recognition of the high level of aviation safety has not deteriorated. The introduced regulations had a direct impact on the safety of operations in both manned and unmanned aviation. The current experience of the impact of regulations in manned aviation is outlined and the current regulations in unmanned aviation, as well as safety and risk management, are discussed. The importance of the VLOS and BVLOS unmanned operations as well as the open, special and certified categories were discussed. In both types of aviation, one of the most significant factors influencing the level of safety is the human factor (HF). Therefore, the participation and importance of HF as an important component of the existing and implemented regulations was taken into account. Reference was made to the changes currently introduced at the national and European levels. The final conclusions are presented in the summary. Keywords: UAS; Safety; Threats; Risk; Regulations; Safety management; SOR
UAS IN RESCUE AND CRISIS MANAGEMENT DETERMINATION OF OPERATIONAL RISK
No full textUnmanned aerial vehicle systems play an increasingly important role in crisis management and rescue. The specificity of such operations makes it difficult to conduct a typical risk analysis. The paper presents European and national regulations concerning the use of UAS in relation to operational safety issues. It presents also an outline of proposed changes in relation to safety issues in the Polish aviation law. Next it contains a discussion on the meaning of risk and provisions regarding how to perform operational risk assessment in EU regulations and provides a characterization of the specificity of UAS operations in rescue and crisis management. The general principles and the procedure of the SORA analysis method were presented. The SORA method was referred to rescue and crisis operations and an assessment was made of its usefulness. A proposal was made for an alternative ERA-2.0 risk analysis method and presented for UAS rescue and crisis management operations.Systemy bezzałogowych statków powietrznych odgrywają coraz większą rolę w zarządzaniu sytuacjami kryzysowymi i w ratownictwie. Specyfika takich operacji utrudnia przeprowadzenie typowej analizy ryzyka. W artykule wskazano regulacje europejskie i krajowe dotyczące użytkowania SBSP w odniesieniu do zagadnień bezpieczeństwa operacyjnego. Przedstawiono zarys projektu zmian w odniesieniu do zagadnień bezpieczeństwa w polskim prawie lotniczym. Następnie omówiono znaczenie ryzyka i przepisy dotyczące wykonania oceny ryzyka operacyjnego w regulacjach unijnych. Scharakteryzowano specyfikę operacji SBSP w ratownictwie i zarządzaniu kryzysowym. Przytoczono ogólne zasady koncepcji i procedurę metody analizy SORA. Odniesiono metodę SORA do operacji ratowniczych i działań kryzysowych oraz dokonano ocenę jej przydatności. Zaproponowano i przedstawiono alternatywną metodę analizy ryzyka ERA-2.0 dla operacji SBSP ratowniczych i zarzadzania kryzysowego
Easy Risk Assessment for Unmanned Aircraft Systems: Outline of the Method
No full textThe key element of safety systems in air transport is risk management. The rules for the safety of unmanned aircraft system (UAS) operations are established by the Commission Implementing Regulations (European Union [EU]) and national regulations. Risk assessment is the foundation of all activities. The broadest scope is covered by the special category of flights for which the Joint Authorities for rulemaking on Unmanned Systems (JARUS) developed the Specific Operations Risk Assessment (SORA) analysis. The primary purpose of the SORA analysis is to create a comprehensive safety portfolio, which is attached to the National Aviation Authority (NAA) application for permission to perform specific category flights. Aviation authorities may accept the use of other risk analysis methods to demonstrate risk reduced to a safe level. Easy Risk Assessment (ERA) for UASs is an attempt to determine the risk for UAS flights in a simple way by considering a range of factors influencing risk management in a similar way to the SORA. It is an uncomplicated method, which determines threats and their sources, provides risk management, and allows the determination of the level of risk tolerance. The ERA is intended to be an alternative to the SORA methodology for those looking to carry out risk assessment
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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