scholarly journals THE FUTURE OF PASSENGER AIR TRANSPORT – VERY LARGE AIRCRAFT AND OUT KEY HUMAN FACTORS AFFECTING THE OPERATION AND SAFETY OF PASSENGER AIR TRANSPORT

2017 ◽  
Vol 12 ◽  
pp. 104
Author(s):  
Petra Skolilova
Keyword(s):  
Human Factors ◽  
Human Error ◽  
Operating Cost ◽  
Aircraft Design ◽  
Air Transport ◽  
Final Decision ◽  
Factors Affecting ◽  
Fuel Burn ◽  
The Future ◽  
The Impact

The article outlines some human factors affecting the operation and safety of passenger air transport given the massive increase in the use of the VLA. Decrease of the impact of the CO2 world emissions is one of the key goals for the new aircraft design. The main wave is going to reduce the burned fuel. Therefore, the eco-efficiency engines combined with reasonable economic operation of the aircraft are very important from an aviation perspective. The prediction for the year 2030 says that about 90% of people, which will use long-haul flights to fly between big cities. So, the A380 was designed exactly for this time period, with a focus on the right capacity, right operating cost and right fuel burn per seat. There is no aircraft today with better fuel burn combined with eco-efficiency per seat, than the A380. The very large aircrafts (VLAs) are the future of the commercial passenger aviation. Operating cost versus safety or CO2 emissions versus increasing automation inside the new generation aircraft. Almost 80% of the world aircraft accidents are caused by human error based on wrong action, reaction or final decision of pilots, the catastrophic failures of aircraft systems, or air traffic control errors are not so frequent. So, we are at the beginning of a new age in passenger aviation and the role of the human factor is more important than ever.

scholarly journals An Analysis of Ibn-Khaldun’s Theory in light of Covid-19 Pandemic

2020 ◽  
Vol 10 ◽  
pp. 15-21
Author(s):  
Mohammed Musallem Binham Alameri ◽  
◽  
Khawlah M. AL- Tkhayneh
Keyword(s):  
Social Change ◽  
Human Factors ◽  
Way Of Life ◽  
Ibn Khaldun ◽  
Factors Affecting ◽  
Natural Factors ◽  
Current Events ◽  
Future Events ◽  
New Perspective ◽  
The Impact

This argumentative paper presents a new perspective on Ibn-khaldun’s theory of social change in light of Covid-19. It argues that when examining the theory, it can be found that it makes an association between social change and natural factors, such as epidemics and human factors, such as government changes. The target theory which is explored in this study is the cyclical theory of Ibn-khaldun. This study adopts the former theory in order to analyze the effects of Covid-19 on the Arab-Islamic society, and how this theory was able to predict many of the current events and possible future events using social and historical approaches. The paper consists of four parts as follows: First, an overview of Ibn-khaldun’s theory of social change and its philosophy is provided. Second, the role of human factors in social change according to Ibn-khaldun is explored. Third, natural factors affecting social change according to Ibn-khaldun are discussed. Finally, the impact of Covid-19 on our way of life in relation to Ibn-khaldun’s theory of social change is examined.

Factors Affecting the Selection of BIOX® as the Preferred Technology for the Treatment of a Refractory Gold Concentrate

2015 ◽  
Vol 1130 ◽  
pp. 191-196 ◽  
Author(s):  
Jan van Niekerk
Keyword(s):  
Operating Cost ◽  
Process Selection ◽  
Factors Affecting ◽  
Process Route ◽  
Refractory Gold ◽  
Project Risks ◽  
Fundamental Research ◽  
The Impact ◽  
Specific Project ◽  
Selection Of

The BIOX®process was developed in the late 1980’s for the treatment of refractory gold concentrates. The process has since developed into a commercially proven process with 12 successful installations of which 6 are currently still in operation. During this time development of the technology continued to improve the efficiency of the process, improve the reliability of the equipment used and to reduce the capital and operating cost for the implementation and operation of the process.This paper will look at some critical aspects in the selection of the BIOX as the preferred technology for the treatment of a refractory gold. Process selection will include technical criteria, for example the amenability of a concentrate to biooxidation and process design criteria, but will also include the overall project economic evaluation, a study of the project risks, the impact of the project and technology on the environment and local communities, operability of the process and implementation strategy.It is important that these aspects be taken into consideration in the design of any testwork program, be it fundamental research in the biooxidation field or in the development of a specific project. The impact of decisions taken during the execution of the program must also be tested continuously to gauge the impact on the overall process viability.The selection of biooxidation as the preferred process route for any project, be it gold, copper or any other mineral, will in most cases be based on the overall project economics compared to other processes, rather than technical considerations.

Aircraft conceptual design for optimal environmental performance

2012 ◽  
Vol 116 (1175) ◽  
pp. 1-22 ◽  
Author(s):  
R. P. Henderson ◽  
J. R. R. A. Martins ◽  
R. E. Perez
Keyword(s):  
Operating Cost ◽  
Aircraft Design ◽  
Aircraft Emissions ◽  
Design Optimisation ◽  
Commercial Aviation ◽  
Fuel Burn ◽  
Design Variables ◽  
Multidisciplinary Design Optimisation ◽  
Aircraft Conceptual Design ◽  
Geometry Engine

Abstract Consideration of the environmental impact of aircraft has become critical in commercial aviation. The continued growth of air traffic has caused increasing demands to reduce aircraft emissions, imposing new constraints on the design and development of future airplane concepts. In this paper, an aircraft design optimisation framework is used to design aircraft that minimise specific environmental metrics. Multidisciplinary design optimisation is used to optimise aircraft by simultaneously considering airframe, engine and mission. The environmental metrics considered in this investigation are CO2 emissions — which are proportional to fuel burn — and landing-takeoff NOx emissions. The results are compared to those of an aircraft with minimum direct operating cost. The design variables considered in the optimisation problems include aircraft geometry, engine parameters, and cruise settings. An augmented Lagrangian particle swarm optimiser and a genetic algorithm are used to solve the single objective and multi-objective optimisation problems, respectively.

Towards a methodology for new technologies assessment in aircraft operating cost

2020 ◽  
pp. 095441002096467
Author(s):  
Valeria Vercella ◽  
Marco Fioriti ◽  
Nicole Viola
Keyword(s):  
New Technologies ◽  
Cost Model ◽  
Operating Cost ◽  
Cost Savings ◽  
Aircraft Design ◽  
Maintenance Costs ◽  
Direct Operating Cost ◽  
The Individual ◽  
Technological Improvements ◽  
The Impact

The need for a greener and competitive aircraft is leading to the use of new technologies. A thorough assessment of these technologies is mandatory from the initial phases of aircraft design to understand their feasibility and to select the most promising one both in terms of performances and in terms of costs. This paper proposes a methodology to assess the operating cost of innovative technologies for regional aircraft. In particular, two NASA studies have been adopted to determine the impact onto costs of MEA and AEA technologies and advanced ECS solutions for two innovative regional aircraft concepts developed during the European Clean Sky 2 research. The proposed methodology is able to assess the effect of on-board systems electrification level in terms of fuel and maintenance costs savings. The methodology, which allows to evaluate the effect of specific technological improvements onto costs, is applied exploiting the results provided by a reliable cost model and gives the opportunity to quantify operating cost savings for different regional aircraft. Applying the modified cost model to the reference aircraft under study, savings ranging from 1.6 to 3.1% of direct operating cost are estimated for MEA and AEA technologies. Greater savings are estimated for the individual cost items involved. More specifically, a reduction of fuel cost ranging from 6 to 14.5% is envisaged as a consequence of the lower SFC associated to innovative ECS technologies.

scholarly journals Impact of Technical, Organizational and Human Factors on Accident Rate of Small-Sized Enterprises

2021 ◽  
Vol 29 (2) ◽  
pp. 139-144
Author(s):  
Marta Niciejewska ◽  
Adam Idzikowski ◽  
Katarína Lestyánszka Škurková
Keyword(s):  
Human Factors ◽  
Older Workers ◽  
Occupational Safety ◽  
Work Organization ◽  
Accident Rate ◽  
Factors Affecting ◽  
Eu Countries ◽  
Technical Factors ◽  
Production Company ◽  
The Impact

Abstract The paper focuses on the analysis of the impact of technical, organizational and human factors on accident rate in small-sized enterprises. The research was carried out using the authors’ questionnaire. The results were verified using the method of direct interview with elements of observation. The results were compared with the trends prevailing in enterprises of EU countries. The respondents, i.e. production company workers, indicate technical factors as those which most significantly affect the occurrence of accidents at work. However, the assessment of the factors changes with the age of the respondents. Older workers, more often than younger employees, indicate the ones related to man or work organization as the most important factors affecting accidents at work and, consequently, the level of occupational safety. The presented results are a part of a larger whole project the authors of this paper are working on.

DESTABILIZING EUROPE: RUSSIA’S HYBRID WARFARE

2021 ◽  
pp. 5-29
Author(s):  
Borys Parakhonsky ◽  
Galina Yavorska
Keyword(s):  
European Union ◽  
Foreign Policy ◽  
International Security ◽  
The European Union ◽  
European Security ◽  
Factors Affecting ◽  
Security Environment ◽  
The Future ◽  
The Impact ◽  
The Eu

The European Union is in a political and security crisis. The crisis tends to become existential, which undermines the future of the EU as an integration project. The conflict of values between liberal democracy and authoritarianism is becoming an important factor in international security. Negative current trends in the international security environment increase risks for the EU. In its foreign policy the EU does not demonstrate the ability to speak with one voice. It does not support EU’s ambition to be a global international actor. Within the EU, centrifugal tendencies and Euroscepticism appear to be gaining ground. Among the destructive external and internal factors affecting European security, the hybrid threat posed by Moscow’s ambitious plans and aggressive actions is at the forefront. These actions are aimed at undermining democracies, international solidarity and security. Russia is systematically acting to destabilize the EU, using a set of means of destructive influence, trying to undermine European unity both externally and internally. Russia’s aggression against Ukraine, operations in Syria and Libya, interference in domestic processes in the EU, etc., are exacerbating destructive trends in the European security environment. In this con- text, the EU faces the need to increase its resilience, as a tool to deter destructive actions of the Russian Federation and a means to mitigate their effect. The purpose of the article is to analyze the causes and consequences of Russia’s  hybrid influence against the EU, plus to identify the means of Russia’s destructive impact, such as the spread of misinformation, active special operations, energy pressure, etc. The article examines the imperatives of Russian foreign policy, the impact of the value crisis on the European project and its future, as well as obstacles to strategic dialogue between the EU and Russia. Europe returns to searching for its collective European identity, discussing revitalization of the global European narrative. Maintaining a system of liberal democratic values is a key precondition for the future of the EU in order to avoid the risk of disintegration of the European Union. Sovereignty and territorial integrity of Ukraine, its national security could be guaranteed only by full-fledged integration into the European political, economic and security space. Europe’s hesitations regarding the European perspective for Ukraine, which arise under pressure from the Kremlin and internal contradictions in the EU, negatively affect the security environment  in Europe.

scholarly journals Mining Employees Safety and the Application of Information Technology in Coal Mining: Review

2021 ◽  
Vol 9 ◽  
Author(s):  
Li Yang ◽  
Getnet Engeda Birhane ◽  
Junqi Zhu ◽  
Jichao Geng
Keyword(s):  
Information Technology ◽  
Environmental Impact ◽  
Human Factors ◽  
Coal Mining ◽  
Active Sites ◽  
Human Error ◽  
Mining Sites ◽  
Safety Issues ◽  
Unsafe Behaviors ◽  
The Impact

Background: Though the introduction of modern safer underground coal mining methods and automation, mine accidents still cause loss of lives, time, and money. This paper aims to analyze in detail the causes of safety and environmental issues in the coal mining industry, as well as the impact of IoT on coal mining.Method: A systematic review was conducted. A comprehensive search involving Web of Science, Google Scholar, Scopus, and Science direct databases was conducted using a combination of the following keywords: mining accidents, coal mining injuries, human error in mining, intelligent mining, etc. The inclusion criteria: (1) the study was published between January 2000 and June 2020; (2) the participants were coal mining employees/coal mining accidents and accidents were work-related; (3) the study focused on identifying causes of coal mining safety issues or accidents, factors that influence unsafe behaviors and accidents in coal mining, coal mining rescue management, coal mining rescue plan, coal mining environmental impact, mining information technology, intelligent mining; (4) the study was published in a refereed journal; (5) the study was written in English. In this paper, articles were retained if they were original studies.Results: A total of 59 papers were reviewed in detail. Safety issues in coal mining and the impact of IoT were identified and categorized into three main factors: general safety issues, environmental factors, and mining information technology. Recently, the coal mines had become mechanized and automated leading to improved safety, productivity, and cost. However, Human factors such as lack of appropriate skill, lack of experience, perceptual error, and unsafe behaviors, as well as lack of detailed emergency rescue plan were the leading causes of coal mining injuries. Furthermore, abandoned mining sites' carbon emission is greater than active sites.Conclusion: The study recommends further research to be conducted using different psychological models to understand human factors and design effective safety management systems. And the environmental impact of abandoned mining sites should be given due attention.

scholarly journals Exploring the Human Factors Affecting Health Service Managers: A Qualitative Study

2019 ◽  
Vol 7 (12) ◽  
pp. 2017-2023
Author(s):  
Mansour Ranjbar ◽  
Masoumeh Neishabouri ◽  
Mohammad Ali Heidari Gorji
Keyword(s):  
Health Service ◽  
Qualitative Study ◽  
Human Factors ◽  
Management Practices ◽  
Close Contact ◽  
Social Needs ◽  
Factors Affecting ◽  
Multiple Challenges ◽  
The Impact ◽  
Service Managers

BACKGROUND: In recent decades, managing health-service systems has faced multiple challenges. Identifying and resolving these challenges promote the efficiency and effectiveness of hospital activities. AIM: The present study aimed to explore the human factors affecting health service managers.MATERIAL AND METHODS: In this qualitative study, in-depth unstructured interviews were conducted with 29 employees who were in close contact with the health service managers. All the interviews were transcribed verbatim. Data were collected using purposeful sampling and were analysed using conventional content analysis via MAXQDA software.RESULTS: A group of 29 participants were interviewed (male 65.5%, female 34.4%). "Managing managers" has been identified as the primary theme with four supporting secondary themes including the inappropriate appointment of managers, the impact of human and social needs of managers, influential employees, and disrupting organisational communications. These are the challenges faced by managers in managing human resources in health-service organisations.CONCLUSION: Results showed that employees manage their managers within the organisation so that they can prevent managers from concentrating on their management affairs and tasks resulting in the distortion of management practices. The results of this study can help the key policy makers and planners in health-service organisations to guide the organisation to pursue its goals through appointing appropriate managers and identifying influential employees.

scholarly journals THE IMPACT OF DIGITALIZATION AND INTELLIGENTIZATION ON AIR TRANSPORTATION SYSTEM

Aviation ◽  
2021 ◽  
Vol 25 (3) ◽  
pp. 159-170
Author(s):  
Jiezhuoma La ◽  
Iryna Heiets
Keyword(s):  
Transport System ◽  
Traffic Control ◽  
Modern Society ◽  
Future Trend ◽  
Air Transport ◽  
Transport Systems ◽  
Impact Factors ◽  
The Future ◽  
Forecasting Analysis ◽  
The Impact

This study aims to provide insights into the impact levels of digitalization and intelligentization on air transport system (ATS) in Australia, China, the US, and India. Air transport system is one of the most efficient transport systems which contains three elements: air traffic control, airport, and airlines. In modern society, the importance of digitalization and intelligentization in ATS is attached to by publics. In this study, firstly, comparative analysis is used to analyze the different states of digitalization and intelligentization level and air transport system in sample countries. Then, correlation analysis is used to study the correlation of the different impact factors with the ATS in different countries. The third one is regression analysis, it is used to analyze the relationship between ATS and the development of digitalization and intelligentization in four sample countries. At last, forecasting analysis is used to predict the future trend of digitalization and intelligentization’s impact on ATS in the sample countries in the next few years. Then, the most significant impact factors for ATS will be obtained. Also, the future development trends of ATS under digitalization and intelligentization’s impact could be forecasted by using econometric models.

Contrail avoidance in the aircraft design process

2008 ◽  
Vol 112 (1138) ◽  
pp. 733-737 ◽  
Author(s):  
F. Noppel ◽  
R. Singh
Keyword(s):  
Design Process ◽  
Radiative Forcing ◽  
Meteorological Data ◽  
Aircraft Design ◽  
Air Traffic ◽  
Industrial Sectors ◽  
Fuel Burn ◽  
Aircraft Type ◽  
The Impact ◽  
Traffic Pollutants

AbstractAs aviation is one of the fastest growing industrial sectors world wide, air-traffic emissions are projected to increase their stake in the contribution to global warming. According to studies, both carbon dioxide and contrails are the principal air-traffic pollutants, whereas the impact from contrails in terms of radiative forcing is possibly larger than that of all other air-traffic pollutants combined. New regulations with the objective of mitigating contrail occurrences might cause a change in the design requirements of aircraft. In light of this, a method considering contrail formation during the aircraft design process is presented in this paper. Aircraft performance and optimisation is carried out with NASA’s flight optimisation system. Combining historical meteorological data with air-traffic data enables an assessment regarding contrail formation. As an example, a particular aircraft type in terms of range, speed and payload is optimised for minimum block fuel consumption considering different altitudes. The change in contrail formation in terms of contrail-km formed is calculated. The results suggest that if aircraft of the considered class were designed for higher altitudes, contrail occurrences would diminish slightly at a non-negligible fuel burn penalty.

Sign in / Sign up

Export Citation Format

Share Document