Pub Date : 2023-01-01DOI: 10.1615/jflowvisimageproc.2023047645
W. Majewski, N. Bouchahda, Rim Ayari, R. Wei
{"title":"Study of cardiac fluid dynamics in the right side of the heart with AI PIV.","authors":"W. Majewski, N. Bouchahda, Rim Ayari, R. Wei","doi":"10.1615/jflowvisimageproc.2023047645","DOIUrl":"https://doi.org/10.1615/jflowvisimageproc.2023047645","url":null,"abstract":"","PeriodicalId":41984,"journal":{"name":"JOURNAL OF FLOW VISUALIZATION AND IMAGE PROCESSING","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67577697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/jflowvisimageproc.v30.i1.10
A. Saha, K. Muralidhar
{"title":"PREFACE: VISUALIZATION OF COMPLEX FLOW STRUCTURES IN JETS AND WAKES","authors":"A. Saha, K. Muralidhar","doi":"10.1615/jflowvisimageproc.v30.i1.10","DOIUrl":"https://doi.org/10.1615/jflowvisimageproc.v30.i1.10","url":null,"abstract":"","PeriodicalId":41984,"journal":{"name":"JOURNAL OF FLOW VISUALIZATION AND IMAGE PROCESSING","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67593872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/jflowvisimageproc.2023046834
{"title":"Robust Face Recognition Algorithm Based on Multidirectional Log-Gabor Features","authors":"","doi":"10.1615/jflowvisimageproc.2023046834","DOIUrl":"https://doi.org/10.1615/jflowvisimageproc.2023046834","url":null,"abstract":"","PeriodicalId":41984,"journal":{"name":"JOURNAL OF FLOW VISUALIZATION AND IMAGE PROCESSING","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67577368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/jflowvisimageproc.2023049120
G S Biradar, Majid Hassan Khan, Sumit Bankey, Abhishek Mishra, Ganapati Joshi, Amit Agrawal
Particle image velocimetry measurements have been undertaken to investigate the aerodynamic performance of bio-inspired corrugated airfoil under the influence of external turbulence. The study is motivated by the gliding flight of dragonflies and its relevance to bio-inspired corrugated wing design for Micro Air Vehicles. The detailed flow field measurements are undertaken at 6% free stream turbulence intensity for six angles of attack (±50, ±100 and ±150). The low Reynolds number regime from Re= 1200 to 13200 corresponding to dragonfly flight has been covered in the current study. The aerodynamic performance of the corrugated airfoil is evaluated by obtaining drag and lift coefficients using modified wake survey method and Kutta-Joukowski theorem respectively. The calculated Cl and Cd are compared with available literature and it is noted that the performance of corrugated profile airfoil degrades significantly under the influence of external turbulence. The temporal wake obtained from the mean velocity fields is also presented for better visualization of flow dynamics. The findings of the study indicate that the performance of corrugated airfoil under external turbulence is strongly influenced by angle of attack at lower Re.
{"title":"BIO-INSPIRED CORRUGATED AIRFOIL AERODYNAMICS UNDER EXTERNAL TURBULENCEAT LOW REYNOLDS NUMBERS","authors":"G S Biradar, Majid Hassan Khan, Sumit Bankey, Abhishek Mishra, Ganapati Joshi, Amit Agrawal","doi":"10.1615/jflowvisimageproc.2023049120","DOIUrl":"https://doi.org/10.1615/jflowvisimageproc.2023049120","url":null,"abstract":"Particle image velocimetry measurements have been undertaken to investigate the aerodynamic performance of bio-inspired corrugated airfoil under the influence of external turbulence. The study is motivated by the gliding flight of dragonflies and its relevance to bio-inspired corrugated wing design for Micro Air Vehicles. The detailed flow field measurements are undertaken at 6% free stream turbulence intensity for six angles of attack (±50, ±100 and ±150). The low Reynolds number regime from Re= 1200 to 13200 corresponding to dragonfly flight has been covered in the current study. The aerodynamic performance of the corrugated airfoil is evaluated by obtaining drag and lift coefficients using modified wake survey method and Kutta-Joukowski theorem respectively. The calculated Cl and Cd are compared with available literature and it is noted that the performance of corrugated profile airfoil degrades significantly under the influence of external turbulence. The temporal wake obtained from the mean velocity fields is also presented for better visualization of flow dynamics. The findings of the study indicate that the performance of corrugated airfoil under external turbulence is strongly influenced by angle of attack at lower Re.","PeriodicalId":41984,"journal":{"name":"JOURNAL OF FLOW VISUALIZATION AND IMAGE PROCESSING","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136002871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/jflowvisimageproc.2023049896
Hiroaki Hasegawa, Kenichi Nakagawa
{"title":"Turnover Stability Caused by Gaps in a Badminton Shuttlecock","authors":"Hiroaki Hasegawa, Kenichi Nakagawa","doi":"10.1615/jflowvisimageproc.2023049896","DOIUrl":"https://doi.org/10.1615/jflowvisimageproc.2023049896","url":null,"abstract":"","PeriodicalId":41984,"journal":{"name":"JOURNAL OF FLOW VISUALIZATION AND IMAGE PROCESSING","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135051464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/jflowvisimageproc.2023044299
M. Pal, Aneesh Bhagwat, Anand T N C, S. Bakshi
{"title":"MODIFICATION OF A MULTI-HOLE INJECTOR TO A SINGLE-HOLE INJECTOR AND SPRAY CHARACTERISTICS OF THE MODIFIED INJECTOR BY TWO DIFFERENT IMAGING TECHNIQUES","authors":"M. Pal, Aneesh Bhagwat, Anand T N C, S. Bakshi","doi":"10.1615/jflowvisimageproc.2023044299","DOIUrl":"https://doi.org/10.1615/jflowvisimageproc.2023044299","url":null,"abstract":"","PeriodicalId":41984,"journal":{"name":"JOURNAL OF FLOW VISUALIZATION AND IMAGE PROCESSING","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67577090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/jflowvisimageproc.2023045132
S. Debnath, Md Tanvir Khan, Z. U. Ahmed
{"title":"Substrate Characteristics of Multiple Arrays of Turbulent Swirling Impinging Jets","authors":"S. Debnath, Md Tanvir Khan, Z. U. Ahmed","doi":"10.1615/jflowvisimageproc.2023045132","DOIUrl":"https://doi.org/10.1615/jflowvisimageproc.2023045132","url":null,"abstract":"","PeriodicalId":41984,"journal":{"name":"JOURNAL OF FLOW VISUALIZATION AND IMAGE PROCESSING","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67577674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/jflowvisimageproc.v30.i4.30
Suzan Alyahya
The study aims to analyze the effects of visual and verbal learning with the help of eye-tracking technology. A quantitative research design is adopted to assess verbal/visual performance using eye-tracking technology. The study recruited sixty-two students. The responses of participants were collected regarding the verbal-visual learning style rating (VVLSR). This study used eyetracking technology and assessed the verbal/visual performance of the participants. Fixation count on the map (FCm), Fixation count on the text (FCt), fixation duration on the map (FDm), and fixation duration on the text (FDt) were involved in the measures. Statistical analysis was performed through one-way analysis of variance (ANOVA) and Pearson correlation. Data were gathered with the Tobii X120 and collected with Tobii Studio. The findings revealed a significant relationship between text duration and verbal score (r = 0.543, p < 0.001). One-way ANOVA findings showed a significant impact of learning style on the visual test [F (2.59) = 6.26, p = 0.003]. No significa nt effect of learning style was reported on the verbal test [F (2.59) = 0.957, p = 0.390)]. The study has provided evidence of the effectiveness of visuals in multimedia learning environments. The participants' perceptions varied about the learning procedure. The study found a significant positive impact of using visual and verbal information for better learning and knowledge retention. In the future, the VVLSR will add value to the research in applied cognitive psychology as it will help the psychologist to identify the effects of different verbal/visual learning styles via eye-tracking technology.
本研究旨在借助眼动追踪技术分析视觉和语言学习的效果。采用眼动追踪技术对语言/视觉表现进行定量研究设计。这项研究招募了62名学生。收集被试对语言-视觉学习风格评分(VVLSR)的反应。这项研究使用了眼球追踪技术，并评估了参与者的语言/视觉表现。测量包括对地图的注视计数(FCm)、对文字的注视计数(FCt)、对地图的注视时间(FDm)和对文字的注视时间(FDt)。统计学分析采用单因素方差分析(ANOVA)和Pearson相关分析。数据由Tobii X120和Tobii Studio收集。研究结果显示，文本时长与言语得分之间存在显著关系(r = 0.543, p < 0.001)。单因素方差分析结果显示，学习风格对视觉测试有显著影响[F (2.59) = 6.26, p = 0.003]。学习风格对言语测验无显著影响[F (2.59) = 0.957, p = 0.390)]。这项研究为多媒体学习环境中视觉效果的有效性提供了证据。参与者对学习过程的看法各不相同。研究发现，使用视觉和口头信息对更好的学习和知识记忆有显著的积极影响。未来，VVLSR将为应用认知心理学的研究增加价值，因为它将帮助心理学家通过眼动追踪技术识别不同的语言/视觉学习风格的影响。
{"title":"ANALYZING THE EFFECTIVENESS OF VERBAL-VISUAL LEARNING STYLE RATING (VVLSR) USING EYE-TRACKING TECHNOLOGY","authors":"Suzan Alyahya","doi":"10.1615/jflowvisimageproc.v30.i4.30","DOIUrl":"https://doi.org/10.1615/jflowvisimageproc.v30.i4.30","url":null,"abstract":"The study aims to analyze the effects of visual and verbal learning with the help of eye-tracking technology. A quantitative research design is adopted to assess verbal/visual performance using eye-tracking technology. The study recruited sixty-two students. The responses of participants were collected regarding the verbal-visual learning style rating (VVLSR). This study used eyetracking technology and assessed the verbal/visual performance of the participants. Fixation count on the map (FCm), Fixation count on the text (FCt), fixation duration on the map (FDm), and fixation duration on the text (FDt) were involved in the measures. Statistical analysis was performed through one-way analysis of variance (ANOVA) and Pearson correlation. Data were gathered with the Tobii X120 and collected with Tobii Studio. The findings revealed a significant relationship between text duration and verbal score (r = 0.543, p < 0.001). One-way ANOVA findings showed a significant impact of learning style on the visual test [F (2.59) = 6.26, p = 0.003]. No significa nt effect of learning style was reported on the verbal test [F (2.59) = 0.957, p = 0.390)]. The study has provided evidence of the effectiveness of visuals in multimedia learning environments. The participants' perceptions varied about the learning procedure. The study found a significant positive impact of using visual and verbal information for better learning and knowledge retention. In the future, the VVLSR will add value to the research in applied cognitive psychology as it will help the psychologist to identify the effects of different verbal/visual learning styles via eye-tracking technology.","PeriodicalId":41984,"journal":{"name":"JOURNAL OF FLOW VISUALIZATION AND IMAGE PROCESSING","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67593880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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