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31 Research products, page 1 of 4

  • COVID-19
  • 0201 civil engineering

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  • Open Access
    Authors: 
    Rawhi Alrae; Manar AbuTalib; Qassim Nasir;
    Publisher: IEEE

    Wearable systems are promising Internet of Things (IoT) solutions that have attracted researchers’ attention in the last decade. They are getting more consideration after the COVID-19 pandemic. Information Quality (IQ) is essential for obtaining value from wearable IoT systems. In our earlier work, we proposed a complete framework that systemically developed a total IQ assessment of the IoT systems. The framework was initially validated by conducting a comparison study. Therefore, this paper aims to validate the utility of the earlier framework by using a single-case experiment. This experiment studies the use of the framework in defining IQ assessment for medical wearable IoT devices. The methodology of the experiment involves conducting literature surveys. This paper successfully uses wearable systems as a case to test the assessment processes of the IQ framework for the IoT systems. However, the case effectively indicates the importance of the framework pillars: the data quality dimensions and the IoT elements by assessing the medical wearables.

  • Open Access English
    Authors: 
    Manuela Bocayuva;
    Publisher: Springer Berlin Heidelberg

    The process of digital transformation, which is playing a fundamental role in the current COVID-19 worldwide panorama, has impacted all sectors of society, including the port sector. Albeit being a conservative sector, reluctant to change, it has been receptive to the opportunities offered by new information and communication systems and technologies, since they increase the efficiency of operation and, consequently, the competitive advantage of the port in the market. However, the digital era also brings new risks and threats, such as cyber-attacks. For various reasons, especially the lack of awareness about cybersecurity, such risks and threats are not being properly considered by the sector, leaving it vulnerable to attacks of this nature. In view of the importance of this sector to the EU Member States, given its status of critical infrastructure and its importance for the European economies, and the rise of cyber-attacks since the COVID-19 pandemic outbreak, it is vital to analyze the issue of cybersecurity in ports in view of digital transformation and understand the current situation.

  • Open Access English
    Authors: 
    Rucheng Liu; Dan Li; Sakdirat Kaewunruen;
    Publisher: Frontiers Media S.A.

    The last few months have marked a notable surge in COVID-19 The disease has infected 10 million people around the world and has gained attention in the field of research Allegedly originating in China, the virus has spread to nearly every country The current study aims to analyze the potential spread of the coronavirus through rail transport by considering the case of the Wuhan-Beijing railway corridor in China It has been found that approximately 43,000 people travel daily through this railway line, which indicates a high chance for this railway line to spread the virus This study adopts a quantitative methodology to analyze the spread of the disease due to a large number of people traveling on the Wuhan-Beijing railway line The findings of this study establish that the railway line leaving Wuhan carries approximately 43,000 people daily The more people travel, the higher the chances are for the spread of the disease through this railway line In line with that, the study has also analyzed the effectiveness of control measures such as lockdown, the use of masks, sanitization, and social distancing for railway authorities as well as passengers This study concludes by proposing new practical recommendations for further controlling the spread of the disease in Wuhan © Copyright © 2020 Liu, Li and Kaewunruen

  • Open Access English
    Authors: 
    Sayli Shiradkar; Luis Rabelo; Fahad Alasim; Khalid Nagadi;
    Publisher: Multidisciplinary Digital Publishing Institute

    Virtual training platform allows interactive and engaging learning through practice without exposing trainees to hazards. In the recent pandemic (COVID-19) situation, online training is gaining importance as it allows learning with social distancing. This research study develops two online training modes—slide-based and virtual world—and assesses them on factors such as knowledge retention, engagement, and attention. Fire safety and emergency evacuation procedures were selected for online training development, focusing on a university community. A Lean Startup methodology was employed to develop training content for virtual and slide-based safety training (SBST). A virtual university building was developed with 15 learning objectives on fire safety. An empirical evaluation of the training modes was conducted with 143 participants. The results validated that a Virtual Safety World (VSW) can provide the same knowledge as SBST but can do so in a more engaging manner. Retention of concepts after a month was higher in VSW participants. The participants’ attention levels, measured by employing qEEG, showed that participants exhibited better-sustained attention while in VSW than in SBST mode. In addition, initial studies of the virtual training platform, designed to be adaptive to the user, are performed using deep learning and qEEG.

  • Open Access
    Authors: 
    Oghenerume Ogolo; A. O. Arinkoola; Samuel Osisanya; Frank Egede; Ternenge Joseph Chior;
    Publisher: Springer Science and Business Media LLC

    AbstractIn less than a decade, there have been two global meltdowns of crude oil price and the latest was caused by the spread of coronavirus disease (COVID-19) in 2020. This is expected to have a negative impact on the global economy, especially on those countries that depend more on the revenue from sales of crude oil. One of the measures that can be taken to survive this kind of situation in the future is to reduce the unit technical cost for producing a barrel of oil by using locally available materials. This research investigated a local clay sourced from Ropp in Plateau State, Nigeria, by considering its rheological characteristics and economic implications of using it for partial to total substitution of imported bentonite clay for oil and gas drilling operations. The local clay was termed as Ropp bentonite clay (RBC). Various spud mud samples were prepared by dispersing a mixture of imported bentonite clay (IBC) and RBC (0–100%) in 350 ml of water. Certain quantity (0–1 g) of polyacrylamide cellulose was added to the mud samples before rheological and physical properties were determined using the standard API procedure. An economic model was built to determine the cost implications of using any of the mud formulations at different consumption rates. The results show that IBC–RBC blend in the right proportion could save Nigeria 12 to 36% of the cost of bentonite clay used to drill wells in the country.

  • Open Access
    Authors: 
    Lilin Wang;
    Publisher: IOS Press

    The light steel structure is always the common material of the movable plank house, and the new bud light steel system is the light steel system used for a long time after the earthquake This paper discusses the mechanical system of the light steel structure of Huoshenshan hospital, which was built in ten days In the process of building, the geometric form of roof stress has changed In the actual structural design, the designer seldom takes the calculation of construction load into account, which is quite different from the actual construction process So it is very important to simulate and monitor the whole process of structure installation In this paper, the finite element software MIDAS / Gen is used for simulation analysis to ensure that the simulation analysis results are consistent with the construction process, the model material and the actual size are completely consistent, and the stress simulated by the software can meet the needs of the actual stress through the actual measurement © 2020 - IOS Press and the authors All rights reserved

  • Closed Access
    Authors: 
    Sunseng Tea; Kriengsak Panuwatwanich; Rathavoot Ruthankoon; Manop Kaewmoracharoen;
    Publisher: Emerald

    Purpose The purpose of this study is to develop and assess the real-time multiuser virtual reality (VR) application that can be used in the design review process. In particular, the application was aimed to accommodate the design review meetings conducted among participants who are in different locations, which has become commonplace during the COVID-19 outbreak. Design/methodology/approach This paper presents a methodology for the development of a real-time multiuser immersive VR application, to support remote collaboration during the design review process. The developed application can immerse remote project participants into the same virtual environment and provide virtual face-to-face discussions. An experiment was conducted with 44 university students to investigate the applicability and performance of the developed application by comparing it with the traditional approach. Findings Results indicated that the group of students who used the developed immersive VR application outperformed the group that used the traditional approach. This was measured by the percentage of correctly identified design errors during a building inspection experiment. Originality/value The difficulty of bringing remote stakeholders together in a virtual environment has impeded the implementation of VR technology in the architecture, engineering and construction (AEC) industry. Most research has focused on the improvement of a single user’s experience. Most of the previous multiuser VR studies were conducted in other industries while similar research in the AEC industry is limited. The study presented in this paper contributes to the AEC industry by presenting the development of multiuser immersive VR applications for real-time remote collaboration and the empirical evidence to substantiate its potential benefits.

  • Open Access
    Authors: 
    Yong-Soon Kim; Don-Mook Choi;
    Publisher: Korea Institute of Fire Science and Engineering

    Recently, a new infectious disease, COVID-19, has been spreading not only in Korea but around the world. As a result, the Korean government raised the level of infectious disease crisis alerts to a serious level on February 23, 2020. The purpose of this study is to apply the situational theory of publics to publics segmentation according to the issuance of a crisis alert and to suggest ways to improve the crisis alert system. To this end, the level of public perception on crisis alerts was checked. The verification confirmed that the situational theory of publics is a suitable theoretical framework for analyzing the communication behaviors of the public toward crisis alerts. As a result of the public segmentation, 42.7% were classified as active publics. Based on this, it was suggested to reorganize the crisis alert system as a system for communicating with the public.

  • Open Access English
    Authors: 
    Hanbin Luo; Jiajing Liu; Chengqian Li; Ke Chen; Ming Zhang;
    Publisher: Published by Elsevier B.V.

    With the outbreak of the 2019 novel coronavirus (COVID-19) epidemic in Wuhan, China, in January 2020, the escalating number of confirmed and suspected cases overwhelmed the admission capacity of the designated hospitals. Two specialty field hospitals—Huoshenshan and Leishenshan—were designed, built and commissioned in record time (9–12 days) to address the outbreak. This study documents the design and construction of Leishenshan Hospital. Based on data collected from various sources such as the semi-structured interviews of key stakeholders from Leishenshan Hospital, this study found that adhering to a product, organization, and process (POP) modeling approach combined with building information modeling (BIM) allowed for the ultra-rapid creation, management, and communication of project-related information, resulting in the successful development of this fully functional, state-of-the-art infectious disease specialty hospital. With the unfortunate ongoing international COVID-19 outbreak, many countries and regions face similar hospital capacity problems. It is thus expected that the lessons learned from the design, construction and commissioning of Leishenshan Hospital can provide a valuable reference to the development of specialty field hospitals in other countries and regions. Highlights • The specialty field hospital is one of the major measures to combat COVID-19. • This study documented the design and construction of the Leishenshan Hospital project. • POP modeling approach combined with BIM contributed to the rapid development of Leishenshan Hospital. • Lessons learned from the Leishenshan Hospital project can help to develop specialty field hospitals in other countries.

  • Open Access English
    Authors: 
    Mahmoud E. Awad; Ana Borrego-Sánchez; Elizabeth Escamilla-Roa; Alfonso Hernández-Laguna; C. Ignacio Sainz-Díaz;
    Publisher: Elsevier BV
    Country: Spain

    This work aimed at studying the potentiality of interactions between kaolinite surfaces and a protein-fragment (350–370 amino acid units) extracted from the glycoprotein E1 in the transmembrane domain (TMD) of hepatitis C virus capsid. A computational work was performed for locating the potential electrostatic interaction sites between kaolinite aluminol and siloxane surfaces and the residues of this protein-fragment ligand, monitoring the possible conformational changes. This hydrated neutralized kaolinite/protein-fragment system was simulated by means of molecular modeling based on atomistic force fields based on empirical interatomic potentials and molecular dynamic (MD) simulations. The MD calculations indicated that the studied protein-fragment interacted with the kaolinite surfaces with an exothermic process and structural distortions were observed, particularly with the hydrophilic aluminol surface by favorable adsorption energy. The viral units isolation or trapping by the adsorption on the kaolinite nanoparticles producing structural distortion of the peptide ligands could lead to the blockage of the entry on the receptor and hence a lack of viral activity would be produced. Therefore, these findings with the proposed insights could be an useful information for the next experimental and development studies in the area of discovering inhibitors of the global challenged hepatitis and other pathogenic viruses based on the phyllosilicate surface activity. These MD studies can be extended to other viruses like the COVID-19 interacting with silicate minerals surfaces. Authors would like to acknowledge the contribution of the European COST Action CA17120 supported by the EU Framework Program Horizon 2020 and the financial support of the Andalusia Government projects [RNM1897 and RNM363, and CTS-946]; the MINECO and FEDER projects [FIS2016-77692-C2-2-P, PCIN-2017-098]. Peer reviewed

search
Include:
The following results are related to COVID-19. Are you interested to view more results? Visit OpenAIRE - Explore.
31 Research products, page 1 of 4
  • Open Access
    Authors: 
    Rawhi Alrae; Manar AbuTalib; Qassim Nasir;
    Publisher: IEEE

    Wearable systems are promising Internet of Things (IoT) solutions that have attracted researchers’ attention in the last decade. They are getting more consideration after the COVID-19 pandemic. Information Quality (IQ) is essential for obtaining value from wearable IoT systems. In our earlier work, we proposed a complete framework that systemically developed a total IQ assessment of the IoT systems. The framework was initially validated by conducting a comparison study. Therefore, this paper aims to validate the utility of the earlier framework by using a single-case experiment. This experiment studies the use of the framework in defining IQ assessment for medical wearable IoT devices. The methodology of the experiment involves conducting literature surveys. This paper successfully uses wearable systems as a case to test the assessment processes of the IQ framework for the IoT systems. However, the case effectively indicates the importance of the framework pillars: the data quality dimensions and the IoT elements by assessing the medical wearables.

  • Open Access English
    Authors: 
    Manuela Bocayuva;
    Publisher: Springer Berlin Heidelberg

    The process of digital transformation, which is playing a fundamental role in the current COVID-19 worldwide panorama, has impacted all sectors of society, including the port sector. Albeit being a conservative sector, reluctant to change, it has been receptive to the opportunities offered by new information and communication systems and technologies, since they increase the efficiency of operation and, consequently, the competitive advantage of the port in the market. However, the digital era also brings new risks and threats, such as cyber-attacks. For various reasons, especially the lack of awareness about cybersecurity, such risks and threats are not being properly considered by the sector, leaving it vulnerable to attacks of this nature. In view of the importance of this sector to the EU Member States, given its status of critical infrastructure and its importance for the European economies, and the rise of cyber-attacks since the COVID-19 pandemic outbreak, it is vital to analyze the issue of cybersecurity in ports in view of digital transformation and understand the current situation.

  • Open Access English
    Authors: 
    Rucheng Liu; Dan Li; Sakdirat Kaewunruen;
    Publisher: Frontiers Media S.A.

    The last few months have marked a notable surge in COVID-19 The disease has infected 10 million people around the world and has gained attention in the field of research Allegedly originating in China, the virus has spread to nearly every country The current study aims to analyze the potential spread of the coronavirus through rail transport by considering the case of the Wuhan-Beijing railway corridor in China It has been found that approximately 43,000 people travel daily through this railway line, which indicates a high chance for this railway line to spread the virus This study adopts a quantitative methodology to analyze the spread of the disease due to a large number of people traveling on the Wuhan-Beijing railway line The findings of this study establish that the railway line leaving Wuhan carries approximately 43,000 people daily The more people travel, the higher the chances are for the spread of the disease through this railway line In line with that, the study has also analyzed the effectiveness of control measures such as lockdown, the use of masks, sanitization, and social distancing for railway authorities as well as passengers This study concludes by proposing new practical recommendations for further controlling the spread of the disease in Wuhan © Copyright © 2020 Liu, Li and Kaewunruen

  • Open Access English
    Authors: 
    Sayli Shiradkar; Luis Rabelo; Fahad Alasim; Khalid Nagadi;
    Publisher: Multidisciplinary Digital Publishing Institute

    Virtual training platform allows interactive and engaging learning through practice without exposing trainees to hazards. In the recent pandemic (COVID-19) situation, online training is gaining importance as it allows learning with social distancing. This research study develops two online training modes—slide-based and virtual world—and assesses them on factors such as knowledge retention, engagement, and attention. Fire safety and emergency evacuation procedures were selected for online training development, focusing on a university community. A Lean Startup methodology was employed to develop training content for virtual and slide-based safety training (SBST). A virtual university building was developed with 15 learning objectives on fire safety. An empirical evaluation of the training modes was conducted with 143 participants. The results validated that a Virtual Safety World (VSW) can provide the same knowledge as SBST but can do so in a more engaging manner. Retention of concepts after a month was higher in VSW participants. The participants’ attention levels, measured by employing qEEG, showed that participants exhibited better-sustained attention while in VSW than in SBST mode. In addition, initial studies of the virtual training platform, designed to be adaptive to the user, are performed using deep learning and qEEG.

  • Open Access
    Authors: 
    Oghenerume Ogolo; A. O. Arinkoola; Samuel Osisanya; Frank Egede; Ternenge Joseph Chior;
    Publisher: Springer Science and Business Media LLC

    AbstractIn less than a decade, there have been two global meltdowns of crude oil price and the latest was caused by the spread of coronavirus disease (COVID-19) in 2020. This is expected to have a negative impact on the global economy, especially on those countries that depend more on the revenue from sales of crude oil. One of the measures that can be taken to survive this kind of situation in the future is to reduce the unit technical cost for producing a barrel of oil by using locally available materials. This research investigated a local clay sourced from Ropp in Plateau State, Nigeria, by considering its rheological characteristics and economic implications of using it for partial to total substitution of imported bentonite clay for oil and gas drilling operations. The local clay was termed as Ropp bentonite clay (RBC). Various spud mud samples were prepared by dispersing a mixture of imported bentonite clay (IBC) and RBC (0–100%) in 350 ml of water. Certain quantity (0–1 g) of polyacrylamide cellulose was added to the mud samples before rheological and physical properties were determined using the standard API procedure. An economic model was built to determine the cost implications of using any of the mud formulations at different consumption rates. The results show that IBC–RBC blend in the right proportion could save Nigeria 12 to 36% of the cost of bentonite clay used to drill wells in the country.

  • Open Access
    Authors: 
    Lilin Wang;
    Publisher: IOS Press

    The light steel structure is always the common material of the movable plank house, and the new bud light steel system is the light steel system used for a long time after the earthquake This paper discusses the mechanical system of the light steel structure of Huoshenshan hospital, which was built in ten days In the process of building, the geometric form of roof stress has changed In the actual structural design, the designer seldom takes the calculation of construction load into account, which is quite different from the actual construction process So it is very important to simulate and monitor the whole process of structure installation In this paper, the finite element software MIDAS / Gen is used for simulation analysis to ensure that the simulation analysis results are consistent with the construction process, the model material and the actual size are completely consistent, and the stress simulated by the software can meet the needs of the actual stress through the actual measurement © 2020 - IOS Press and the authors All rights reserved

  • Closed Access
    Authors: 
    Sunseng Tea; Kriengsak Panuwatwanich; Rathavoot Ruthankoon; Manop Kaewmoracharoen;
    Publisher: Emerald

    Purpose The purpose of this study is to develop and assess the real-time multiuser virtual reality (VR) application that can be used in the design review process. In particular, the application was aimed to accommodate the design review meetings conducted among participants who are in different locations, which has become commonplace during the COVID-19 outbreak. Design/methodology/approach This paper presents a methodology for the development of a real-time multiuser immersive VR application, to support remote collaboration during the design review process. The developed application can immerse remote project participants into the same virtual environment and provide virtual face-to-face discussions. An experiment was conducted with 44 university students to investigate the applicability and performance of the developed application by comparing it with the traditional approach. Findings Results indicated that the group of students who used the developed immersive VR application outperformed the group that used the traditional approach. This was measured by the percentage of correctly identified design errors during a building inspection experiment. Originality/value The difficulty of bringing remote stakeholders together in a virtual environment has impeded the implementation of VR technology in the architecture, engineering and construction (AEC) industry. Most research has focused on the improvement of a single user’s experience. Most of the previous multiuser VR studies were conducted in other industries while similar research in the AEC industry is limited. The study presented in this paper contributes to the AEC industry by presenting the development of multiuser immersive VR applications for real-time remote collaboration and the empirical evidence to substantiate its potential benefits.

  • Open Access
    Authors: 
    Yong-Soon Kim; Don-Mook Choi;
    Publisher: Korea Institute of Fire Science and Engineering

    Recently, a new infectious disease, COVID-19, has been spreading not only in Korea but around the world. As a result, the Korean government raised the level of infectious disease crisis alerts to a serious level on February 23, 2020. The purpose of this study is to apply the situational theory of publics to publics segmentation according to the issuance of a crisis alert and to suggest ways to improve the crisis alert system. To this end, the level of public perception on crisis alerts was checked. The verification confirmed that the situational theory of publics is a suitable theoretical framework for analyzing the communication behaviors of the public toward crisis alerts. As a result of the public segmentation, 42.7% were classified as active publics. Based on this, it was suggested to reorganize the crisis alert system as a system for communicating with the public.

  • Open Access English
    Authors: 
    Hanbin Luo; Jiajing Liu; Chengqian Li; Ke Chen; Ming Zhang;
    Publisher: Published by Elsevier B.V.

    With the outbreak of the 2019 novel coronavirus (COVID-19) epidemic in Wuhan, China, in January 2020, the escalating number of confirmed and suspected cases overwhelmed the admission capacity of the designated hospitals. Two specialty field hospitals—Huoshenshan and Leishenshan—were designed, built and commissioned in record time (9–12 days) to address the outbreak. This study documents the design and construction of Leishenshan Hospital. Based on data collected from various sources such as the semi-structured interviews of key stakeholders from Leishenshan Hospital, this study found that adhering to a product, organization, and process (POP) modeling approach combined with building information modeling (BIM) allowed for the ultra-rapid creation, management, and communication of project-related information, resulting in the successful development of this fully functional, state-of-the-art infectious disease specialty hospital. With the unfortunate ongoing international COVID-19 outbreak, many countries and regions face similar hospital capacity problems. It is thus expected that the lessons learned from the design, construction and commissioning of Leishenshan Hospital can provide a valuable reference to the development of specialty field hospitals in other countries and regions. Highlights • The specialty field hospital is one of the major measures to combat COVID-19. • This study documented the design and construction of the Leishenshan Hospital project. • POP modeling approach combined with BIM contributed to the rapid development of Leishenshan Hospital. • Lessons learned from the Leishenshan Hospital project can help to develop specialty field hospitals in other countries.

  • Open Access English
    Authors: 
    Mahmoud E. Awad; Ana Borrego-Sánchez; Elizabeth Escamilla-Roa; Alfonso Hernández-Laguna; C. Ignacio Sainz-Díaz;
    Publisher: Elsevier BV
    Country: Spain

    This work aimed at studying the potentiality of interactions between kaolinite surfaces and a protein-fragment (350–370 amino acid units) extracted from the glycoprotein E1 in the transmembrane domain (TMD) of hepatitis C virus capsid. A computational work was performed for locating the potential electrostatic interaction sites between kaolinite aluminol and siloxane surfaces and the residues of this protein-fragment ligand, monitoring the possible conformational changes. This hydrated neutralized kaolinite/protein-fragment system was simulated by means of molecular modeling based on atomistic force fields based on empirical interatomic potentials and molecular dynamic (MD) simulations. The MD calculations indicated that the studied protein-fragment interacted with the kaolinite surfaces with an exothermic process and structural distortions were observed, particularly with the hydrophilic aluminol surface by favorable adsorption energy. The viral units isolation or trapping by the adsorption on the kaolinite nanoparticles producing structural distortion of the peptide ligands could lead to the blockage of the entry on the receptor and hence a lack of viral activity would be produced. Therefore, these findings with the proposed insights could be an useful information for the next experimental and development studies in the area of discovering inhibitors of the global challenged hepatitis and other pathogenic viruses based on the phyllosilicate surface activity. These MD studies can be extended to other viruses like the COVID-19 interacting with silicate minerals surfaces. Authors would like to acknowledge the contribution of the European COST Action CA17120 supported by the EU Framework Program Horizon 2020 and the financial support of the Andalusia Government projects [RNM1897 and RNM363, and CTS-946]; the MINECO and FEDER projects [FIS2016-77692-C2-2-P, PCIN-2017-098]. Peer reviewed