Subjective discomfort of airport community is often assessed as reported noise annoyance in relation to noise exposure level and noise sensitivity. In addition, it has been mentioned that higher affluent people appear...Subjective discomfort of airport community is often assessed as reported noise annoyance in relation to noise exposure level and noise sensitivity. In addition, it has been mentioned that higher affluent people appear to have higher contention to aircraft noise, but there is little literature explicitly supporting that. This paper investigates the relationships among aircraft noise exposure level, noise sensitivity, affluence status, aircraft noise annoyance, and annoyance by other noise sources (e.g., road traffic and neighbor noise). A structural equation model is developed and estimated using data collected from residents, aged between 18 and 77 years old, living near Manila airport in the Philippines (N = 321). Results show that noise sensitivity, noise exposure level, and affluent status have positive effects on aircraft noise annoyance, suggesting that higher affluent people are substantially more annoyed by the aircraft noise than lower affluent people. The results also indicate that the annoyance by other noise sources is significantly influenced by noise sensitivity (p < 0.01), but not by the affluent status. This implies that people with higher affluent status consider more about the noise generated from aircraft than the noise from other sources. Following an airport development plan, the aviation authorities should also consider the affluent status of nearby communities in order to formulate a better aircraft noise management near that airport.展开更多
Rapid adoption of ride-hailing apps (RHAs) has greatly influenced the way people travel—there is no exception for paratransit users. However, it remains unclear whether RHAs would be regarded as threats or opportunit...Rapid adoption of ride-hailing apps (RHAs) has greatly influenced the way people travel—there is no exception for paratransit users. However, it remains unclear whether RHAs would be regarded as threats or opportunities among paratransit operators in Asian developing cities. While RHAs have been viewed as disruptive transportation, several studies explored the threats of RHAs on taxi industry—but only a few examined such threats on other paratransit services (e.g., auto-rickshaws). This study assessed the changes in the operational services among paratransit operators who have adopted RHAs. The changes were examined by statistical comparisons using data collected from questionnaire survey with 182 Bajaj drivers in Phnom Penh, January 23-27, 2018, as a case study. Results showed that majority of the interviewed drivers started new services with RHAs less than a year ago—they were younger (88%) satisfied with RHAs and acknowledged improvements on their operational services. The results suggested that RHAs would be opportunities for those paratransit drivers who have adopted them, while they would be threats for those who have not. The collected data serve as useful inputs for future public transport planning in Asian developing cities.展开更多
Skin lesions have become a critical illness worldwide,and the earlier identification of skin lesions using dermoscopic images can raise the survival rate.Classification of the skin lesion from those dermoscopic images...Skin lesions have become a critical illness worldwide,and the earlier identification of skin lesions using dermoscopic images can raise the survival rate.Classification of the skin lesion from those dermoscopic images will be a tedious task.The accuracy of the classification of skin lesions is improved by the use of deep learning models.Recently,convolutional neural networks(CNN)have been established in this domain,and their techniques are extremely established for feature extraction,leading to enhanced classification.With this motivation,this study focuses on the design of artificial intelligence(AI)based solutions,particularly deep learning(DL)algorithms,to distinguish malignant skin lesions from benign lesions in dermoscopic images.This study presents an automated skin lesion detection and classification technique utilizing optimized stacked sparse autoen-coder(OSSAE)based feature extractor with backpropagation neural network(BPNN),named the OSSAE-BPNN technique.The proposed technique contains a multi-level thresholding based segmentation technique for detecting the affected lesion region.In addition,the OSSAE based feature extractor and BPNN based classifier are employed for skin lesion diagnosis.Moreover,the parameter tuning of the SSAE model is carried out by the use of sea gull optimization(SGO)algo-rithm.To showcase the enhanced outcomes of the OSSAE-BPNN model,a comprehensive experimental analysis is performed on the benchmark dataset.The experimentalfindings demonstrated that the OSSAE-BPNN approach outper-formed other current strategies in terms of several assessment metrics.展开更多
The prevalence and risk factors of sick building syndrome(SBS)symptoms in domestic environments were studied by a questionnaire survey on the home environment.Parents of 5299 3–6 years old children from randomly sele...The prevalence and risk factors of sick building syndrome(SBS)symptoms in domestic environments were studied by a questionnaire survey on the home environment.Parents of 5299 3–6 years old children from randomly selected kindergartens in Chongqing,China returned completed questionnaires between December 2010 and April 2011.The prevalence of parents’SBS symptoms(often(every week)compared with never)were:11.4%for general symptoms,7.1%for mucosal symptoms and 4.4%for skin symptoms.Multiple logistic regressions were applied controlling for gender and asthma/allergic rhinitis/eczema.Living near a main road or highway was a strong risk factor for general symptoms(adjusted odds ratio,aOR=2.16,P<0.001),skin symptoms(aOR=2.69,P<0.001),and mucosal symptoms(aOR=1.63,P<0.01).Redecoration was a risk factor for general symptoms(aOR=2.00,P<0.001),skin symptoms(aOR=1.66,P<0.01),and mucosal symptoms(aOR=1.66,P<0.05).New furniture was a risk factor for general symptoms(aOR=2.16,P<0.001)and skin symptoms(aOR=1.67,P<0.01).Dampness related problems(mould spot,damp stain,water damage and condensation)were all risk factors for SBS symptoms,as was the presence of cockroaches,rats,and mosquitoes/flies and use of incense.Protective factors include cleaning the child’s bedroom every day and frequently exposing bedding to sunshine.In conclusion,adults’SBS symptoms were related to factors of the home environment.展开更多
Climate change has become a pressing concern,with an alarming increase in flooding events posing significant risks to residential areas worldwide.As land and infrastructure development rapidly evolve,it is crucial to ...Climate change has become a pressing concern,with an alarming increase in flooding events posing significant risks to residential areas worldwide.As land and infrastructure development rapidly evolve,it is crucial to systematically analyze the bibliometric patterns and methodological trends in flood mitigation research,with a specific focus on residential building flood mitigation.This study presents a comprehensive comparative analysis of the bibliometric patterns and methodological trends in flood mitigation research over the past two decades,identifies prevailing gaps,and proposes future research directions to enhance the effectiveness of flood miti-gation strategies.Using data from the Scopus database,441 publications were objectively selected and subjected to metadata analysis.The study identifies top authors,contributing institutions,nations,and the distribution of contributions across different fields and methodologies.The findings emphasize the need for an integrated and interdisciplinary approach to flood reduction research,considering the complex interplay of social,ecological,and physical dimensions in flood risk management.The study reveals the predominance of modeling and simulation approaches,geographic information systems(GIS)remote sensing approaches,and statistical and data-driven approaches as the most widely employed methodologies.Furthermore,it highlights the growing diversity of approaches,with increasing interest in machine learning algorithms and combined methods.Also,this study provides valuable recommendations for future research,emphasizing the importance of developing effective floodmitigating strategies to enhance community resilience.It advocates for a multidisciplinary and integrated approach,leveraging geospatial technologies,machine learming algorithms,and collaborative meth-odologies to advance flood mitigation research and practice.Future research should consider exploring addi-tional databases,including Web of Science,EBSCO,IEEE,and Google Scholar,to conduct a more comprehensive review of the available literature.There is need for future studies to conduct in-depth comparative analyses of flood mitigation methodologies,particularly in the context of residential buildings.展开更多
Dedicated multi media platforms have the potential to enhance experiences and increase people’s awareness of cultural heritage.It is,however,not clear to what extent and by which functions these platforms accomplish ...Dedicated multi media platforms have the potential to enhance experiences and increase people’s awareness of cultural heritage.It is,however,not clear to what extent and by which functions these platforms accomplish this.Therefore,the aim of this research is to investigate the influence of functionalities offered by a well-designed multi-media web-platform on the awareness and experience of cultural heritage.The multi media platform used is focused on Strijp-S,an industrial cultural heritage in Eindhoven,the Netherlands.The platform was created as a prototype based on a study of users’preferences for contents and media types offered.To collect data,a sample of 302 respondents used the platform to explore and view Strijp-S.To test assumed relationships between different functionalities,awareness and experience in an integrated fashion,the data are analyzed using Structural Equation Modelling(SEM).The results show that information-collection funtionality plays a significant role in improving awareness of cultural heritage,whereas auxiliary functions are particularly helpful for enhancing experiences.The perceived helpfulness of these two sets of functions differ however between users depending on theitr level of prior knowledge.Policymakers and urban planners can use these results to create their own platform based on local heritage to increase the citizens’awareness of cultural heritage.展开更多
Piezoresistive composite elastomers have shown great potentials for wearable and flexible electronic applications due to their high sensitivity,excellent frequency response,and easy signal detection.A composition memb...Piezoresistive composite elastomers have shown great potentials for wearable and flexible electronic applications due to their high sensitivity,excellent frequency response,and easy signal detection.A composition membrane sensor with an interlocked structure has been developed and demonstrated outstanding pressure sensitivity,fast response time,and low temperature drift features.Compared with a flexible MXene-based flat sensor(Ti_(3)C_(2)),the interlocked sensor exhibits a significantly improved pressure sensitivity of two magnitudes higher(21.04 kPa^(-1)),a fast reaction speed of 31 ms,and an excellent cycle life of 5000 test runs.The viability of sensor in responding to various external stimuli with high deformation capacity has been confirmed by calculating the force distribution of a polydimethylsiloxane(PDMS)film model with a microlens structure using the solid mechanics module in COMSOL.Unlike conventional process,we utilized three-dimensional(3D)laser-direct writing lithography equipment to directly transform high-precision 3D data into a micro-nano structure morphology through variable exposure doses,which reduces the hot melting step.Moreover,the flexible pressure device is capable of detecting and distinguishing signals ranging from finger movements to human pulses,even for speech recognition.This simple,convenient,and large-format lithographic method offers new opportunities for developing novel human-computer interaction devices.展开更多
The authors have retracted this article because it overlaps with a previously published article[1].All authors agree to this retraction.The online version of this article contains the full text of the retracted articl...The authors have retracted this article because it overlaps with a previously published article[1].All authors agree to this retraction.The online version of this article contains the full text of the retracted article as electronic supplementary material.展开更多
Erratum to Nano Research 2023,16(7):10493–10499 https://doi.org/10.1007/s12274-023-5727-6 The article“Advancing pressure sensors performance through a flexible MXene embedded interlocking structure in a microlens ar...Erratum to Nano Research 2023,16(7):10493–10499 https://doi.org/10.1007/s12274-023-5727-6 The article“Advancing pressure sensors performance through a flexible MXene embedded interlocking structure in a microlens array”,written by Tong Li,Zhenzong Xu,Ben Bin Xu,Zhanhu Guo,Yunhong Jiang,Xuehua Zhang,Maryam Bayati,Terence Xiaoteng Liu,and Yan-Hua Liu,was originally published electronically on the publisher’s internet portal on May 20,2023 without open access due to an unfortunate oversight during the conversion process.The publisher apologizes this mistake.The article is forthwith distributed under a Creative Commons Attribution 4.0 International License,which permits use,sharing,adaptation,distribution and reproduction in any medium or format,as long as you give appropriate credit to the original author(s)and the source,provide a link to the Creative Commons licence,and indicate if changes were made.展开更多
文摘Subjective discomfort of airport community is often assessed as reported noise annoyance in relation to noise exposure level and noise sensitivity. In addition, it has been mentioned that higher affluent people appear to have higher contention to aircraft noise, but there is little literature explicitly supporting that. This paper investigates the relationships among aircraft noise exposure level, noise sensitivity, affluence status, aircraft noise annoyance, and annoyance by other noise sources (e.g., road traffic and neighbor noise). A structural equation model is developed and estimated using data collected from residents, aged between 18 and 77 years old, living near Manila airport in the Philippines (N = 321). Results show that noise sensitivity, noise exposure level, and affluent status have positive effects on aircraft noise annoyance, suggesting that higher affluent people are substantially more annoyed by the aircraft noise than lower affluent people. The results also indicate that the annoyance by other noise sources is significantly influenced by noise sensitivity (p < 0.01), but not by the affluent status. This implies that people with higher affluent status consider more about the noise generated from aircraft than the noise from other sources. Following an airport development plan, the aviation authorities should also consider the affluent status of nearby communities in order to formulate a better aircraft noise management near that airport.
文摘Rapid adoption of ride-hailing apps (RHAs) has greatly influenced the way people travel—there is no exception for paratransit users. However, it remains unclear whether RHAs would be regarded as threats or opportunities among paratransit operators in Asian developing cities. While RHAs have been viewed as disruptive transportation, several studies explored the threats of RHAs on taxi industry—but only a few examined such threats on other paratransit services (e.g., auto-rickshaws). This study assessed the changes in the operational services among paratransit operators who have adopted RHAs. The changes were examined by statistical comparisons using data collected from questionnaire survey with 182 Bajaj drivers in Phnom Penh, January 23-27, 2018, as a case study. Results showed that majority of the interviewed drivers started new services with RHAs less than a year ago—they were younger (88%) satisfied with RHAs and acknowledged improvements on their operational services. The results suggested that RHAs would be opportunities for those paratransit drivers who have adopted them, while they would be threats for those who have not. The collected data serve as useful inputs for future public transport planning in Asian developing cities.
基金University Research Committee fund URC-UJ2019,awarded to Kingsley A.Ogudo.
文摘Skin lesions have become a critical illness worldwide,and the earlier identification of skin lesions using dermoscopic images can raise the survival rate.Classification of the skin lesion from those dermoscopic images will be a tedious task.The accuracy of the classification of skin lesions is improved by the use of deep learning models.Recently,convolutional neural networks(CNN)have been established in this domain,and their techniques are extremely established for feature extraction,leading to enhanced classification.With this motivation,this study focuses on the design of artificial intelligence(AI)based solutions,particularly deep learning(DL)algorithms,to distinguish malignant skin lesions from benign lesions in dermoscopic images.This study presents an automated skin lesion detection and classification technique utilizing optimized stacked sparse autoen-coder(OSSAE)based feature extractor with backpropagation neural network(BPNN),named the OSSAE-BPNN technique.The proposed technique contains a multi-level thresholding based segmentation technique for detecting the affected lesion region.In addition,the OSSAE based feature extractor and BPNN based classifier are employed for skin lesion diagnosis.Moreover,the parameter tuning of the SSAE model is carried out by the use of sea gull optimization(SGO)algo-rithm.To showcase the enhanced outcomes of the OSSAE-BPNN model,a comprehensive experimental analysis is performed on the benchmark dataset.The experimentalfindings demonstrated that the OSSAE-BPNN approach outper-formed other current strategies in terms of several assessment metrics.
基金supported by the Key National Project of Physical Science(50838009)National Technology Support Project(2012BAJ02B06)
文摘The prevalence and risk factors of sick building syndrome(SBS)symptoms in domestic environments were studied by a questionnaire survey on the home environment.Parents of 5299 3–6 years old children from randomly selected kindergartens in Chongqing,China returned completed questionnaires between December 2010 and April 2011.The prevalence of parents’SBS symptoms(often(every week)compared with never)were:11.4%for general symptoms,7.1%for mucosal symptoms and 4.4%for skin symptoms.Multiple logistic regressions were applied controlling for gender and asthma/allergic rhinitis/eczema.Living near a main road or highway was a strong risk factor for general symptoms(adjusted odds ratio,aOR=2.16,P<0.001),skin symptoms(aOR=2.69,P<0.001),and mucosal symptoms(aOR=1.63,P<0.01).Redecoration was a risk factor for general symptoms(aOR=2.00,P<0.001),skin symptoms(aOR=1.66,P<0.01),and mucosal symptoms(aOR=1.66,P<0.05).New furniture was a risk factor for general symptoms(aOR=2.16,P<0.001)and skin symptoms(aOR=1.67,P<0.01).Dampness related problems(mould spot,damp stain,water damage and condensation)were all risk factors for SBS symptoms,as was the presence of cockroaches,rats,and mosquitoes/flies and use of incense.Protective factors include cleaning the child’s bedroom every day and frequently exposing bedding to sunshine.In conclusion,adults’SBS symptoms were related to factors of the home environment.
基金funded by the Faculty of Design and Creative Technology Constable Research Fund at Auckland University of Technology(AUT),Auckland,New Zealand.
文摘Climate change has become a pressing concern,with an alarming increase in flooding events posing significant risks to residential areas worldwide.As land and infrastructure development rapidly evolve,it is crucial to systematically analyze the bibliometric patterns and methodological trends in flood mitigation research,with a specific focus on residential building flood mitigation.This study presents a comprehensive comparative analysis of the bibliometric patterns and methodological trends in flood mitigation research over the past two decades,identifies prevailing gaps,and proposes future research directions to enhance the effectiveness of flood miti-gation strategies.Using data from the Scopus database,441 publications were objectively selected and subjected to metadata analysis.The study identifies top authors,contributing institutions,nations,and the distribution of contributions across different fields and methodologies.The findings emphasize the need for an integrated and interdisciplinary approach to flood reduction research,considering the complex interplay of social,ecological,and physical dimensions in flood risk management.The study reveals the predominance of modeling and simulation approaches,geographic information systems(GIS)remote sensing approaches,and statistical and data-driven approaches as the most widely employed methodologies.Furthermore,it highlights the growing diversity of approaches,with increasing interest in machine learning algorithms and combined methods.Also,this study provides valuable recommendations for future research,emphasizing the importance of developing effective floodmitigating strategies to enhance community resilience.It advocates for a multidisciplinary and integrated approach,leveraging geospatial technologies,machine learming algorithms,and collaborative meth-odologies to advance flood mitigation research and practice.Future research should consider exploring addi-tional databases,including Web of Science,EBSCO,IEEE,and Google Scholar,to conduct a more comprehensive review of the available literature.There is need for future studies to conduct in-depth comparative analyses of flood mitigation methodologies,particularly in the context of residential buildings.
文摘Dedicated multi media platforms have the potential to enhance experiences and increase people’s awareness of cultural heritage.It is,however,not clear to what extent and by which functions these platforms accomplish this.Therefore,the aim of this research is to investigate the influence of functionalities offered by a well-designed multi-media web-platform on the awareness and experience of cultural heritage.The multi media platform used is focused on Strijp-S,an industrial cultural heritage in Eindhoven,the Netherlands.The platform was created as a prototype based on a study of users’preferences for contents and media types offered.To collect data,a sample of 302 respondents used the platform to explore and view Strijp-S.To test assumed relationships between different functionalities,awareness and experience in an integrated fashion,the data are analyzed using Structural Equation Modelling(SEM).The results show that information-collection funtionality plays a significant role in improving awareness of cultural heritage,whereas auxiliary functions are particularly helpful for enhancing experiences.The perceived helpfulness of these two sets of functions differ however between users depending on theitr level of prior knowledge.Policymakers and urban planners can use these results to create their own platform based on local heritage to increase the citizens’awareness of cultural heritage.
基金This work was supported by the National Natural Science Foundation of China(No.61974100)the National Science Foundation of the Jiangsu Higher Education Institutions of China(No.20KJA480002)+2 种基金This project was also funded by the Collaborative Innovation Center of Suzhou Nano Science and Technology,and by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)X.H.Z.acknowledges the support from the NSERC-Alberta Innovated Advanced Program.B.B.X.and Y.H.J.are grateful for the support from the Engineering and Physical Sciences Research Council(EPSRC,UK)(Nos.EP/N007921 and EP/X02041X)Y.H.J.also acknowledges the support from the Leverhulme Trust(No.RPG-2022-177).
文摘Piezoresistive composite elastomers have shown great potentials for wearable and flexible electronic applications due to their high sensitivity,excellent frequency response,and easy signal detection.A composition membrane sensor with an interlocked structure has been developed and demonstrated outstanding pressure sensitivity,fast response time,and low temperature drift features.Compared with a flexible MXene-based flat sensor(Ti_(3)C_(2)),the interlocked sensor exhibits a significantly improved pressure sensitivity of two magnitudes higher(21.04 kPa^(-1)),a fast reaction speed of 31 ms,and an excellent cycle life of 5000 test runs.The viability of sensor in responding to various external stimuli with high deformation capacity has been confirmed by calculating the force distribution of a polydimethylsiloxane(PDMS)film model with a microlens structure using the solid mechanics module in COMSOL.Unlike conventional process,we utilized three-dimensional(3D)laser-direct writing lithography equipment to directly transform high-precision 3D data into a micro-nano structure morphology through variable exposure doses,which reduces the hot melting step.Moreover,the flexible pressure device is capable of detecting and distinguishing signals ranging from finger movements to human pulses,even for speech recognition.This simple,convenient,and large-format lithographic method offers new opportunities for developing novel human-computer interaction devices.
文摘The authors have retracted this article because it overlaps with a previously published article[1].All authors agree to this retraction.The online version of this article contains the full text of the retracted article as electronic supplementary material.
文摘Erratum to Nano Research 2023,16(7):10493–10499 https://doi.org/10.1007/s12274-023-5727-6 The article“Advancing pressure sensors performance through a flexible MXene embedded interlocking structure in a microlens array”,written by Tong Li,Zhenzong Xu,Ben Bin Xu,Zhanhu Guo,Yunhong Jiang,Xuehua Zhang,Maryam Bayati,Terence Xiaoteng Liu,and Yan-Hua Liu,was originally published electronically on the publisher’s internet portal on May 20,2023 without open access due to an unfortunate oversight during the conversion process.The publisher apologizes this mistake.The article is forthwith distributed under a Creative Commons Attribution 4.0 International License,which permits use,sharing,adaptation,distribution and reproduction in any medium or format,as long as you give appropriate credit to the original author(s)and the source,provide a link to the Creative Commons licence,and indicate if changes were made.
