ABSTRACT
The novel coronavirus (COVID-19) outbreak has impacted the aviation industry worldwide. Several restrictions and regulations have been implemented to prevent the virus's spread and maintain airport operations. To recover the trustworthiness of air travelers in the new normality, improving airport service quality (ASQ) is necessary, ultimately increasing passenger satisfaction in airports. This research focuses on the relationship between passenger satisfaction and the ASQ dimensions of airports in Thailand. A three-stage analysis model was conducted by integrating structural equation modeling, Bayesian networks, and artificial neural networks to identify critical ASQ dimensions that highly impact overall satisfaction. The findings reveal that airport facilities, wayfinding, and security are three dominant dimensions influencing overall passenger satisfaction. This insight could help airport managers and operators recover passenger satisfaction, increase trustworthiness, and maintain the efficiency of the airports in not only this severe crisis but also in the new normality.
ABSTRACT
Air pollution is one of the major causes of health risks as it leads to widespread disease and death each year. Countries have invested heavily in fighting air pollution, arguably without convincing results. The outbreak of the highly infectious disease COVID-19 in December 2019 has been declared a pandemic and a worldwide health crisis by World Health Organization (WHO). Countries resorted to city lockdowns that sternly curtailed personal mobility and economic activities to control the spread of this deadly coronavirus disease. This paper examines the impact of Covid-19 city lockdowns on air quality. The researchers adopted a comprehensive interpretative document analysis for this study, which guided the careful but rigorous examination of air quality and coronavirus data. This method affirmed the authenticity of the information examined and interpreted in the US, Italy and China, the study areas. The study found that Covid-19 city lockdowns have contributed to a significant improvement in air quality within the first four months of the outbreak of Covid-19. National Aeronautics and Space Administration (NASA) had reported that NO2 concentrations in the study areas had reduced significantly using evidence from their Sentinel-5P instrument. Air quality in Covid-19 cities' lockdowns also improved because of the enforcement of other types of measures enacted to battle the virus. WHO still believes that the amount of NO2 concentration in the atmosphere is still high per their standards and regulations. Based on this, the researchers recommend that governments and other stakeholders put in much effort in terms of legislation to "win the war” against air pollution.
ABSTRACT
According to the WHO, this virus still exists in many parts of the globe in some form or the other. After the end of the Cold War in the early 90s, the global geopolitical and geo-economic divide, consequent to the ongoing Russo-Ukraine War, has never been so harshly polarised. [...]it is pertinent to note what President Xi had spoken recently in the National People's Congress stating that he will endeavour to "more quickly elevating the armed forces to world-class standards-and make it a great wall of steel." Importantly, for decades, India does carry some moral authority with itself with its foreign policy based on the Nehruvian concept of nonalignment now aptly called 'strategic autonomy' which has been long respected by the 'third world' now referred to as the 'global south'.
ABSTRACT
The title of the ConferenceXXII Conference of PhD Students and Young Scientists "Interdisciplinary topics in mining and geology”The location and the date of the conferencevirtual event – online conference, June 29th to July 1st, 2022 in Wrocław, PolandXXIInd Conference of PhD Students and Young Scientists "Interdisciplinary topics in mining and geology” continues a series of events that started in 2000 at Wrocław University of Science and Technology. Scientific programme of the Conference focuses on four thematic panels:1. Mining Engineering: sustainable development, digitalisation in mining, problems of securing, protecting and using remnants of old mining works, underground mining, opencast mining, mineral processing, waste management, mining machinery, mine transport, economics in mining, mining aeronautics, ventilation and air conditioning in mines,2. Earth and Space Sciences: geology, hydrogeology, environmental protection, extraterrestrial resources, groundwater and medicinal waters, engineering and environmental protection, geotourism,3. Geoengineering: environmental protection, applied geotechnics, rock and soil mechanics, geohazards,4. Geoinformation: mining geodesy, GIS, photogrammetry and remote sensing, geodata modeling and analysis.The XXII Conference of PhD Students and Young Scientists was held as a virtual event, that is as a virtual, online conference in real-time. The reason why the Organizing Committee decided to change the traditional formula of the event to online formula was related to the concern for the health of the participants due to the COVID-19 epidemic.The XXII Conference of PhD Students and Young Scientists took place from June 29th to July 1st, 2022 in Wroclaw, Poland. That is the organizers worked and managed the event from the Wrocław University of Science and Technology Geocentre building. Because the conference focused on four thematic panels, four different special opening lectures were delivered by wellknown scientists- Professor Jan Zalasiewicz (University of Leicester, England)- Associate Professor Artur Krawczyk (AGH University of Science and Technology, Poland)- Professor Biljana Kovacević-Zelić (University of Zagreb, Croatia)- Assistant Professor Eduard Kan (Tashkent Institute of Irrigation and Agricultural Mechanizations Engineers, Uzbekistan).The Conference was divided into 8 oral sessions (with 33 presentations) and 1 poster session (with 33 posters). The amount of time provided to one presentation was 15 minutes, after presentation there was 5 minutes available for discussion. The poster session was available throughout the event, and the posters were available for online viewing on the Conference's website with the possibility of make discussion and ask questions in real time via zoom meeting application as well. Every day of the Conference one "virtual coffee break” was devoted for discussion between participants and question and answer session for the Organizers.There were 96 registered participants from 13 countries. The online XXII Conference of PhD Students and Young Scientists was conducted using the Zoom meeting platform with commemorative screen shots taken. By tradition two competitions, for the best oral presentation and for the best poster were held. The award for the best oral presentation was given ex aequo to Julia Tiganj (TH Georg Agricola University of Applied Sciences, Germany) for the presentation entitled Post-mining goes international: hurdles to climate neutrality using the example of China and Oksana Khomiak, Jörg Benndorf (TU Bergakademie Freiberg, Germany) for the presentation entitled Spectral analysis of ore hyperspectral images at different stages of the mining value chain, whereas the best poster was awarded to Adam Wróblewski, Jacek Wodecki, Paweł Trybała, Radosław Zimroz (Wrocław University of Science and technology, Poland) for the poster entitled Large underground structures geometry evaluation based on point cloud data analysis.List of Scientific Committee, Organizing Committee, Editorial Team are available i this pdf.
ABSTRACT
Lockdown or movement control order (MCO) was implemented all over the world, including Malaysia and Indonesia, during the coronavirus disease 2019 (COVID-19) pandemic. During the lockdown period, human activities were restricted. The restriction led to the reduction of human-made particulate matter released to the atmosphere. One of the indicators that could be used to estimate the concentration of particulate matter in the atmosphere is aerosol optical depth (AOD). The aim of this study is to investigate the variation in AOD level over the Malaysia and Indonesia region during this restriction period. This study has utilized monthly and daily Moderate Resolution Imaging Spectroradiometer (MODIS) Terra AOD product that can be accessed through National Aeronautics and Space Administration (NASA)'s Geospatial Interactive Online Visualization and Analysis Infrastructure (GIOVANNI) system. The developed long-term time-averaged map showed a high AOD level over Sumatera and South Kalimantan, with the maximum value being 0.4. The comparison among during, pre- and post-lockdown periods showed a reduction in the AOD level. The maximum AOD level decreased to 0.3 during the lockdown period compared to 0.4 in the pre- (2019) and post-lockdown periods (2021 and 2022). Average monthly time series showed no spike in the AOD level in 2020 and 2021. Hovmöller diagram showed low AOD throughout the latitude and longitude during lockdown compared to the pre- and post-lockdown periods. Analyses of the yearly AOD level showed reduction in the AOD level from +11.31% in 2019 to -18.17% and -18.01% in 2020 and 2021, respectively. The result also showed that the average daily AOD percentage during the lockdown period in 2020 had decreased to -5.34% from -3.18% in 2019 and had increased to +1.26 in 2021.
ABSTRACT
Future City organizations and teams have returned to normal activities this year after Covid;and have reorganized and conducted a very successful Future City 2023 Competition. On 19 February, regional Future City winners from 41 middle schools and after-school organizations (eg, scouts, 4H, boys/girls clubs) from nationwide and China participated in the Future City National Finals. The Special Awards judging was done in person in Washington DC. In its 31st year Future City has engaged middle school in STEM and diversity. This year's Future City theme was "Climate Change Challenge." Middle school students were asked to create cities of the future, first on a computer and then as large tabletop models. Working in teams with a teacher and volunteer engineer mentor, students create their cities using the SimCity 3000 TM video game donated to all participating schools by Electronic Arts, Inc., of Redwood City CA.
ABSTRACT
The AIAA New England (NE) Section hosted its first in-person post-Covid event, "Night with Industry" in January in collaboration with the WPI and MIT Women of Aeronautics and Astronautics (WoAA), Graduate Women in Aerospace Engineering (GWAE), the AIAA student branch, and Women Leaders in Aerospace Programs (WeLEAP) chapter. This event brought together undergraduate and graduate students as well as industry professionals to aid students in building their professional knowledge related to fields, organizations, and roles. Students interacted with industry experts to build knowledge and community awareness about aerospace job roles to inform future decisions and practiced essential professional skills such as relationship building and communication.
ABSTRACT
Fibre-reinforced plastic (FRP) materials are attracting growing interest because of their high specific mechanical properties. These characteristics, in addition to a high level of tailorability and design of freedom, make them attractive for marine, aerospace, automotive, sports and energy applications. However, the large use of this class of material dramatically increases the amount of waste that derives from end-of-life products and offcuts generated during the manufacturing processes. In this context, especially when thermosetting matrices are considered, the need to deeply study the recycling process of FRPs is an open topic both in academic and industrial research. This review aims to present the current state of the art of the most affirmed recycling technologies used for polymeric composites commonly used in industrial applications, such as carbon and glass FRPs. Each recycling method (i.e., chemical, thermal and mechanical) was analysed in terms of technological solutions and process parameters required for matrix dissolution and fibre recovery, showing their advantages, drawbacks, applications and properties of the recycled composites. Therefore, the aim of this review is to offer an extensive overview of the recycling process of polymeric composite materials, which is useful to academic and industrial researchers that work on this topic.
ABSTRACT
This paper considers the level of atmospheric air pollution of the 20 largest cities in Russia in 2019–2020. The data used for the study is initially collected by a TROPOMI instrument (on the Sentinel-5P satellite), including measurements of carbon monoxide, formaldehyde, nitrogen dioxide, sulfur dioxide, and aerosol (aerosol index). The measurements were obtained using the cloud-based platform, Google Earth Engine, which presents L3 level data available for direct analysis. The Tropomi Air Quality Index (TAQI) integrates available TROPOMI measurements into a single indicator. The calculation results showed that most of the cities under consideration (15 out of 20) have a low or higher than usual level of pollution. Formaldehyde (35.7%) and nitrogen dioxide (26.4%) play the main role in the composition of pollution particles. A significant share is occupied by sulfur dioxide (16.4%). The contribution of carbon monoxide and aerosol averages 10.8 and 10.6%, respectively. Air pollution in cities is caused by both natural (wildfires, dust storms) and anthropogenic (seasonal migrations of the population, restrictions due to the COVID-19 pandemic) factors. Estimating atmospheric pollution levels in urban areas using an integral index based on remote data (such as TAQI) can be considered as a valuable information addition to existing ground-based measuring systems within the multisensory paradigm.
ABSTRACT
Disease detection in plants is essential for food security and economic stability. Unmanned aerial vehicle (UAV) imagery and artificial intelligence (AI) are valuable tools for it. The purpose of this review is to gather several methods used by our peers recently, hoping to provide some knowledge and assistance for researchers and farmers so that they can employ these technologies more advantageously. The studies reviewed in this paper focused on Scab detection in Rosaceae family fruits. Feature extraction, segmentation, and classification methods for processing the UAV-obtained images and detecting the diseases are discussed briefly. The advantages and limitations of diverse kinds of UAVs and imaging sensors are also explained. The widely applied methods for image analysis are machine learning (ML)-based models, and the extensively used UAV platforms are rotary-wing UAVs. Recent technologies that cope with challenges related to disease detection using UAV imagery are also detailed in this paper. Some challenging issues such as higher costs, limited batteries and flying time, huge and complex data, low resolution, and noisy images, etc., still require future consideration. The prime significance of this paper is to promote automation and user-friendly technologies in Scab detection.
ABSTRACT
In several economic sectors, the COVID-19 has impacted the organisation of supply chain. Companies had to face a dramatic decrease in their order books. Traditional sales forecasting methods were unable to anticipate this abrupt interruption in the delivery of finished products. The production schedule initially planned was revised downwards and the raw materials ordered, according to an MRP-type calculation, were not consumed. The increase in raw material stocks, due to its importance on the companies' cash flow, became a strategic and priority issue. It was in this context that the aeronautical group Hutchinson set up an inventory segmentation based on an indicator: the just needed. Our article describes this method, known internally as Stock Segmentation Raw Material (SSRM), and assesses its advantages and limitations. © 2022 IEEE.
ABSTRACT
Reynolds discusses the rebound of aircraft operators and struggle with delays. After a 70% drop in aviation operations and a 90% reduction in passengers during the first half of 2020 due to the covid-19 pandemic, passenger demand by mid-2022 was close to pre-pandemic levels. However, flight numbers were still down slightly due to airline flight crew and air traffic control staffing challenges, which led to large numbers of delays, cancellations and other disruptions worldwide. Nearly a quarter of all US flights were delayed by an average of an hour each during June-August. There was an increased focus on climate impacts of aviation throughout the year following the publication of the US Aviation Climate Action Plan in Nov 2021, which details the key role that aircraft operations enhancements will continue to play in reducing climate impacts.
ABSTRACT
Puranik et al discuss air transportation which encounters inflationary headwinds on its recovery from pandemic. A strong and growing global air travel demand, supported by the lifting of air travel restrictions in most countries, fueled the global airline industry's continued recovery this year from the impacts of covid-19. In June, the International Air Transport Association projected a total of 3.8 billion passengers for the year--83% of pre-pandemic levels--and a record high air cargo volume of more than 68 million tons, resulting in a global airline industry loss of $9.7 billion this year down from $42.1 billion in 2021. Only the North America region was expected to achieve profitability, with an estimated $8.8 billion profit. In October, member states of the International Civil Aviation Organization adopted the goal of achieving net-zero carbon emissions by 2050, a target that IATA member airlines had committed to in Oct 2021.
ABSTRACT
Systems engineering often contributes to a business' ability to operate effectively through a crisis. However, as the global economy continued to emerge from the Covid-19 pandemic, recurring systemic failures still ravaged the global supply chain. The supply chain's fragility lingered this year, and the aerospace industry's inability to receive parts when needed may extend beyond 2023. This weakness can be attributed to many issues, including a worker shortage and failure to account for a stressed global transportation system. Systems engineering can often mitigate the longterm effects of a major disruption. However, previous failures to fully model the global supply chain illustrates this problem's complexity. The pandemic demonstrated that the aerospace industry is not immune to global disruptions, even when those disruptions do not appear to involve these products. Aided by better systems modeling, market forces worked to correct failures amplified by the pandemic. Broad and strategic investments are needed to address the long-term workforce shortage.
ABSTRACT
Miller discusses post-pandemic comeback and breakthroughs for electric flight. In May, Federal Aviation Administration (FAA) released its Air Traffic by the Numbers with updated data for 2021. The covid-19 pandemic continued to suppress the general aviation community, but there were signs of improvement. In 2020, there were 204,100 active general aviation aircraft across the US. In 2021, active pilot certificates increased by 4.2% in 2021 to 720,603;drone pilot certificates increased by 23.4% to 254,587. There are 5,184 public-use airports and 14,539 private-use airports across the country. General aviation is the manufacturing and operation of aircraft that have been issued an airworthiness certificate by the FAA--other than aircraft used for scheduled commercial air service or operated by the military--and includes on-demand Federal Aviation Regulations Part 135 operations.
ABSTRACT
Due to the COVID-19 outbreak, the 2020 MetroAeroSpace 7th edition was not held in Pisa and there was an effort by the Organizing Committee to prepare a virtual conference. This year, the 9th edition moves back to Pisa in presence, and it was organized at “Centro Congressi Le Benedettine” with the patronage of the University of Pisa. Thus, Organizing Committee was really glad to welcome the attendees to the historic and beautiful Pisa. Due to still pandemic's influence, some presentations were held remotely. The Organizing Committee improved our LIVE online approach including new facilities in the framework called “WeConf,” the platform developed by Athena Srl, the Company managing the conference.
ABSTRACT
In June 2021, the 'Ejército del Aire' (Spanish Air Force) agreed with the Spanish flag carrier Iberia to take over three Airbus A330-200 aircraft. "With the addition of A330 MRTT to its fleet, the Spanish Air Force acquires a key and proven new capability, that will enhance and support overseas operations, as well as medevac missions, on which the aircraft played a key role during the Covid-19 pandemic crisis worldwide", stated JeanBrice Dumont, Executive Vice President Military Aircraft at Airbus. The large 111 tonnes/245,000 lb basic fuel capacity of the successful A330-200 airliner, from which it is derived, enables the A330 MRTT to excel in Air-to-Air Refuelling missions without the need for additional fuel tanks.
ABSTRACT
While undergraduate research is known as a high-impact practice, little research has been conducted for the online educational setting. Early research suggests that online students and faculty have similar interest in undergraduate research as their residential (face-to-face) counterparts. This point of view presents the framework of support developed for fully online students distributed globally and shares some of the challenges faced in online undergraduate research, including the issue of low recruitment (despite stated interest) that could be exacerbated by the COVID-19 pandemic.
ABSTRACT
On June 4, the AIAA San Diego Section held its annual awards gala for the first time in two years since the start of Covid restrictions. This annual event serves to install the new section officers, present the Reuben H. Fleet scholarship winners, and recognize local section and aerospace community award winners. The event was held at the Allen Airways Museum at Gillespie Field Airport in El Cajon. Guests had the opportunity to view the entire museum collection, including the historic aircraft, aerospace artifacts, and art during the cocktail reception.
ABSTRACT
BEL and AAI collaborate on Air Traffic Management Systems In a major boost to its own diversification drive into non-defence and the Government's 'Make in India' programme, Bharat Electronics Limited (BEL) and Airports Authority of India (AAI), under it's R&D initiative, at Wings India 2022, entered into an agreement for the joint, indigenous development of systems for air traffic management and surface movement of aircraft at airports in the country which were hitherto being imported. Under this Agreement, BEL and AAI will jointly develop Civil Air Traffic Management System (ATMS) with Advanced-Surface Movement Guidance and Control System (ASMGCS), a complex ground surveillance system that manages air traffic at airports and in Indian Civil Airspace for safe operation of flights from take-off to landing. The aim of ATMS with ASMGCS is to provide the air traffic controller with the complete air traffic picture of the coverage area while interacting with Primary/ Secondary Radar, Automatic Dependent Surveillance-Broadcast (ADS-B), Multi-lateration System (MLATs), and navigational equipment such as GPS, Instrument Landing System (ILS) and Doppler Very High Frequency Omni Range (DVOR). Boeing: India to lead South Asia air traffic growth Boeing shared projections for South Asia's commercial aviation sector over the next 20 years, with the region leading the world in yearly passenger traffic growth.