Pub Date : 2021-06-01DOI: 10.23919/URSIRSB.2021.9829344
Jorge A. Tobon V.
This work describes a prototype of a novel imaging device and presents the experimental testing of it. The proposed prototype uses microwave-imaging technology to monitor a brain stroke after its onset, exploiting the different dielectric properties of human tissues. This device complements well-assessed MRI (Magnetic Resonance Imaging) and CT (Computerized Tomography), and could give clinicians fast and extra information in the decision-making stages. The system includes a helmet-like array of antennas, a switching system to connect the antennas to signal processing, the signal processing itself, and the imaging algorithm. The complete functioning prototype reconstructs the position and size of a target - representing the stroke - in a three-dimensional human-like head phantom that considers the proper tissue properties. In this work, different sizes and positions of targets demonstrated the prototype's functioning. Although the system had low complexity, the available information guaranteed a good reconstructed image of the scenario.
{"title":"A 3D microwave-imaging system for brain stroke follow-up: Review and experimental testing","authors":"Jorge A. Tobon V.","doi":"10.23919/URSIRSB.2021.9829344","DOIUrl":"https://doi.org/10.23919/URSIRSB.2021.9829344","url":null,"abstract":"This work describes a prototype of a novel imaging device and presents the experimental testing of it. The proposed prototype uses microwave-imaging technology to monitor a brain stroke after its onset, exploiting the different dielectric properties of human tissues. This device complements well-assessed MRI (Magnetic Resonance Imaging) and CT (Computerized Tomography), and could give clinicians fast and extra information in the decision-making stages. The system includes a helmet-like array of antennas, a switching system to connect the antennas to signal processing, the signal processing itself, and the imaging algorithm. The complete functioning prototype reconstructs the position and size of a target - representing the stroke - in a three-dimensional human-like head phantom that considers the proper tissue properties. In this work, different sizes and positions of targets demonstrated the prototype's functioning. Although the system had low complexity, the available information guaranteed a good reconstructed image of the scenario.","PeriodicalId":101270,"journal":{"name":"URSI Radio Science Bulletin","volume":"2021 377","pages":"12-18"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873543/9829337/09829344.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50351140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.23919/URSIRSB.2021.9829355
You are cordially invited to the 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting - AP-S/URSI 2023, from July 23–28, 2023, at the Oregon Convention Center and Hyatt Regency, in Portland, Oregon, USA, the City of Roses. This conference is cosponsored by the IEEE Antennas and Propagation Society (AP-S) and the US National Committee (USNC) for the International Union of Radio Science (URSI). It is intended to provide an international forum for the exchange of information on state-of-the-art research on antennas, propagation, electromagnetic engineering, and radio science. The symposium and meeting will include a wide range of technical sessions, invited talks, special sessions, student paper and design competitions, short courses, tutorials, exhibits, professional meetings, tours, and networking events. All events will be held in person, however there will an option to join some business meetings remotely.
{"title":"Steering and organizing committee","authors":"","doi":"10.23919/URSIRSB.2021.9829355","DOIUrl":"https://doi.org/10.23919/URSIRSB.2021.9829355","url":null,"abstract":"You are cordially invited to the 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting - AP-S/URSI 2023, from July 23–28, 2023, at the Oregon Convention Center and Hyatt Regency, in Portland, Oregon, USA, the City of Roses. This conference is cosponsored by the IEEE Antennas and Propagation Society (AP-S) and the US National Committee (USNC) for the International Union of Radio Science (URSI). It is intended to provide an international forum for the exchange of information on state-of-the-art research on antennas, propagation, electromagnetic engineering, and radio science. The symposium and meeting will include a wide range of technical sessions, invited talks, special sessions, student paper and design competitions, short courses, tutorials, exhibits, professional meetings, tours, and networking events. All events will be held in person, however there will an option to join some business meetings remotely.","PeriodicalId":101270,"journal":{"name":"URSI Radio Science Bulletin","volume":"2021 377","pages":"63-63"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873543/9829337/09829355.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50350960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.23919/URSIRSB.2021.9829360
Nosherwan Shoaib
It can be said with no doubt that the COVID-19 pandemic has disrupted in-person conference activities worldwide. Similarly to 2020, the year 2021 was a challenging year, with COVID-19 measures across the globe posing severe restrictions on people moving around and meeting in person. In this context, the URSI General Assembly and Scientific Symposium (GASS) 2021 was conducted in hybrid mode. The Young Scientist (YS) Awards were also granted and the Student Paper Competition (SPC) was held. In this ECR column we feature two short reports on the Young Scientist Awards and the Student Paper Competition. These reports were kindly provided by the Young Scientist Panel, consisting of Phil Wilkinson (Chair), Petervan Daele, Stefan J. Wijnholds, and Inge Lievens; and Sembiam R. Rengarajan (Chair of the Student Paper Competition), respectively.
{"title":"Early career representative column: Young scientist and student paper activities at URSI GASS 2021","authors":"Nosherwan Shoaib","doi":"10.23919/URSIRSB.2021.9829360","DOIUrl":"https://doi.org/10.23919/URSIRSB.2021.9829360","url":null,"abstract":"It can be said with no doubt that the COVID-19 pandemic has disrupted in-person conference activities worldwide. Similarly to 2020, the year 2021 was a challenging year, with COVID-19 measures across the globe posing severe restrictions on people moving around and meeting in person. In this context, the URSI General Assembly and Scientific Symposium (GASS) 2021 was conducted in hybrid mode. The Young Scientist (YS) Awards were also granted and the Student Paper Competition (SPC) was held. In this ECR column we feature two short reports on the Young Scientist Awards and the Student Paper Competition. These reports were kindly provided by the Young Scientist Panel, consisting of Phil Wilkinson (Chair), Petervan Daele, Stefan J. Wijnholds, and Inge Lievens; and Sembiam R. Rengarajan (Chair of the Student Paper Competition), respectively.","PeriodicalId":101270,"journal":{"name":"URSI Radio Science Bulletin","volume":"2021 377","pages":"74-78"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873543/9829337/09829360.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50350962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.23919/URSIRSB.2021.9829361
Harvey Liszt
The Scientific Committee on Frequency Allocations for Radio Astronomy and Space Science, IUCAF, was formed in 1960 by its adhering Scientific Unions, IAU, URSI, and COSPAR, at the behest of URSI. The IUCAF brief is to study and coordinate the requirements of radio-frequency spectrum allocations for passive radio sciences - radio astronomy, space research, and remote sensing - and to make these requirements known to the national and international bodies that regulate the use of the radio spectrum.
{"title":"IUCAF annual report for 2021","authors":"Harvey Liszt","doi":"10.23919/URSIRSB.2021.9829361","DOIUrl":"https://doi.org/10.23919/URSIRSB.2021.9829361","url":null,"abstract":"The Scientific Committee on Frequency Allocations for Radio Astronomy and Space Science, IUCAF, was formed in 1960 by its adhering Scientific Unions, IAU, URSI, and COSPAR, at the behest of URSI. The IUCAF brief is to study and coordinate the requirements of radio-frequency spectrum allocations for passive radio sciences - radio astronomy, space research, and remote sensing - and to make these requirements known to the national and international bodies that regulate the use of the radio spectrum.","PeriodicalId":101270,"journal":{"name":"URSI Radio Science Bulletin","volume":"2021 377","pages":"79-82"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873543/9829337/09829361.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50426284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.23919/URSIRSB.2021.9829350
This open scientific meeting is sponsored by the U.S. National Committee (USNC) for the International Union of Radio Science (URSI). More information about USNC-URSI is available at www.usnc-ursi.org. Through technical co-sponsorship of the meeting by the IEEE Antennas and Propagation Society, authors will have their choice of submitting one-page abstracts that are not posted in IEEE Xplore, or two-page summaries that may be archived in IEEE Xplore. At least one author is required to register for each presented abstract or summary. While USNC-URSI encourages in-person attendance for all presenters, a hybrid meeting is planned to allow for authors to present remotely and for all attendees to participate fully in the conference. Papers must be presented for their corresponding summaries to be included in the proceedings and submitted to IEEE Xplore. Abstracts or summaries on any topic in the interest area of a Commission are welcome. Contact the appropriate USNC-URSI Commission Chair listed below or visit the meeting website for further information.
{"title":"National radio science meeting","authors":"","doi":"10.23919/URSIRSB.2021.9829350","DOIUrl":"https://doi.org/10.23919/URSIRSB.2021.9829350","url":null,"abstract":"This open scientific meeting is sponsored by the U.S. National Committee (USNC) for the International Union of Radio Science (URSI). More information about USNC-URSI is available at www.usnc-ursi.org. Through technical co-sponsorship of the meeting by the IEEE Antennas and Propagation Society, authors will have their choice of submitting one-page abstracts that are not posted in IEEE Xplore, or two-page summaries that may be archived in IEEE Xplore. At least one author is required to register for each presented abstract or summary. While USNC-URSI encourages in-person attendance for all presenters, a hybrid meeting is planned to allow for authors to present remotely and for all attendees to participate fully in the conference. Papers must be presented for their corresponding summaries to be included in the proceedings and submitted to IEEE Xplore. Abstracts or summaries on any topic in the interest area of a Commission are welcome. Contact the appropriate USNC-URSI Commission Chair listed below or visit the meeting website for further information.","PeriodicalId":101270,"journal":{"name":"URSI Radio Science Bulletin","volume":"2021 377","pages":"57-57"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873543/9829337/09829350.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50350971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.23919/URSIRSB.2021.9829342
W. Ross Stone
This issue contains the winner of the 2020 URSI Italian National Committee (ITNC) Young Scientist Best Paper Award "Roberto Sorrentino," and two Young Scientist papers that received Honorable Mention. These awards were presented at the annual meeting of the URSI Italian National Committee that was held virtually on November 27, 2020. A report on the meeting and an introduction to the special section is provided by Carlo Carobbi, Giuliano Manara, Giuseppe Mazzarella, and Giuseppe Schettini, who served as Guest Editors for this special section. Their efforts are gratefully acknowledged.
{"title":"Editor's comments: Special section on 2020 URSI ITNC young scientist papers","authors":"W. Ross Stone","doi":"10.23919/URSIRSB.2021.9829342","DOIUrl":"https://doi.org/10.23919/URSIRSB.2021.9829342","url":null,"abstract":"This issue contains the winner of the 2020 URSI Italian National Committee (ITNC) Young Scientist Best Paper Award \"Roberto Sorrentino,\" and two Young Scientist papers that received Honorable Mention. These awards were presented at the annual meeting of the URSI Italian National Committee that was held virtually on November 27, 2020. A report on the meeting and an introduction to the special section is provided by Carlo Carobbi, Giuliano Manara, Giuseppe Mazzarella, and Giuseppe Schettini, who served as Guest Editors for this special section. Their efforts are gratefully acknowledged.","PeriodicalId":101270,"journal":{"name":"URSI Radio Science Bulletin","volume":"2021 377","pages":"8-9"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873543/9829337/09829342.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50351144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.23919/URSIRSB.2021.9829356
James C. Lin
The health and safety implications of fifth-generation (5G) cellular-communication technology have been under scrutiny while the rollout is well underway worldwide. Advocates of 5G mobile technology hail 5G as a faster and more-secure technology than its predecessor 3G and 4G systems. The major enabling infrastructure uses millimeter-wave (mm-wave) and phased-array technologies to achieve line-of-sight directivity, high data rates, and low latency. A central vulnerability or security threat is that it may allow spying on users. Nevertheless, this is a system architecture and technology or regulatory issue, but not a biological or health safety matter.
{"title":"Safety guidelines and 5G communication RF radiation","authors":"James C. Lin","doi":"10.23919/URSIRSB.2021.9829356","DOIUrl":"https://doi.org/10.23919/URSIRSB.2021.9829356","url":null,"abstract":"The health and safety implications of fifth-generation (5G) cellular-communication technology have been under scrutiny while the rollout is well underway worldwide. Advocates of 5G mobile technology hail 5G as a faster and more-secure technology than its predecessor 3G and 4G systems. The major enabling infrastructure uses millimeter-wave (mm-wave) and phased-array technologies to achieve line-of-sight directivity, high data rates, and low latency. A central vulnerability or security threat is that it may allow spying on users. Nevertheless, this is a system architecture and technology or regulatory issue, but not a biological or health safety matter.","PeriodicalId":101270,"journal":{"name":"URSI Radio Science Bulletin","volume":"2021 377","pages":"64-68"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873543/9829337/09829356.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50350958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.23919/URSIRSB.2021.9829358
Asta Pellinen-Wannberg;Rashmi Shah
This time I am happy to introduce a young female scientist from India. I met Dr. Rashmi Joshi on one of my last conferences before retirement, the 14th Spacecraft Charging Technology Conference at ESTEC in Noordwijk, Netherlands, in April 2016. This turned out to be Rashmi's first conference visit abroad. My colleague, Dr. Carol Norberg, and I had attended the conference to present our papers and learn about the latest advances within the areas of expertise of the other participants in preparation for teaching graduate school classes about the space environment around Earth. We were impressed by young Rashmi, who gave a very well prepared talk about spacecraft-charging research in India. She also presented several posters about solar panels and arc flashes.
{"title":"Women in radio science: Working mother from India: Redefining traditions","authors":"Asta Pellinen-Wannberg;Rashmi Shah","doi":"10.23919/URSIRSB.2021.9829358","DOIUrl":"https://doi.org/10.23919/URSIRSB.2021.9829358","url":null,"abstract":"This time I am happy to introduce a young female scientist from India. I met Dr. Rashmi Joshi on one of my last conferences before retirement, the 14th Spacecraft Charging Technology Conference at ESTEC in Noordwijk, Netherlands, in April 2016. This turned out to be Rashmi's first conference visit abroad. My colleague, Dr. Carol Norberg, and I had attended the conference to present our papers and learn about the latest advances within the areas of expertise of the other participants in preparation for teaching graduate school classes about the space environment around Earth. We were impressed by young Rashmi, who gave a very well prepared talk about spacecraft-charging research in India. She also presented several posters about solar panels and arc flashes.","PeriodicalId":101270,"journal":{"name":"URSI Radio Science Bulletin","volume":"2021 377","pages":"70-72"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873543/9829337/09829358.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50350969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.23919/URSIRSB.2021.9829351
Sebastien Celestin
It is with great sorrow that we, his friends and colleagues, announce the passing of François Lefeuvre on March 14, 2022.
我们，他的朋友和同事，怀着极大的悲痛，宣布弗朗索瓦·勒费夫雷于2022年3月14日去世。
{"title":"In memoriam: François Lefeuvre","authors":"Sebastien Celestin","doi":"10.23919/URSIRSB.2021.9829351","DOIUrl":"https://doi.org/10.23919/URSIRSB.2021.9829351","url":null,"abstract":"It is with great sorrow that we, his friends and colleagues, announce the passing of François Lefeuvre on March 14, 2022.","PeriodicalId":101270,"journal":{"name":"URSI Radio Science Bulletin","volume":"2021 377","pages":"58-58"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/7873543/9829337/09829351.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50350972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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