@inproceedings{LauMichlerTalaietal., author = {Lau, Isabella and Michler, Fabian and Talai, Armin and Weigel, Robert and K{\"o}lpin, Alexander}, title = {A Resonant Substrate Integrated Waveguide Measurement System for True Relative Permittivity Extraction of PCB Materials up to 90 GHz}, series = {2018 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) : 16-18 July 2018}, booktitle = {2018 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) : 16-18 July 2018}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-5569-6}, doi = {10.1109/IMWS-AMP.2018.8457133}, pages = {3}, language = {en} } @inproceedings{LauFrankShietal., author = {Lau, Isabella and Frank, Martin and Shi, Kilin and Lurz, Fabian and Talai, Armin and Weigel, Robert and K{\"o}lpin, Alexander}, title = {An Accurate Free Space Method for Material Characterization in W-Band Using Material Samples with Two Different Thicknesses}, series = {Proceedings of the 48th European Microwave Conference, Madrid (Spain), 2018}, booktitle = {Proceedings of the 48th European Microwave Conference, Madrid (Spain), 2018}, doi = {10.23919/EuMC.2018.8541437}, pages = {202 -- 205}, language = {en} } @inproceedings{SchellenbergerShiSteiglederetal., author = {Schellenberger, Sven and Shi, Kilin and Steigleder, Tobias and Michler, Fabian and Lurz, Fabian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Support Vector Machine-Based Instantaneous Presence Detection for Continuous Wave Radar Systems}, series = {Proceedings of 2018 Asia-Pacific Microwave Conference}, booktitle = {Proceedings of 2018 Asia-Pacific Microwave Conference}, doi = {10.23919/APMC.2018.8617181}, pages = {1465 -- 1467}, language = {en} } @inproceedings{ShiSchellenbergerSteiglederetal., author = {Shi, Kilin and Schellenberger, Sven and Steigleder, Tobias and Michler, Fabian and Lurz, Fabian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Contactless Carotid Pulse Measurement Using Continuous Wave Radar}, series = {Asia-Pacific Microwave Conference, Kyoto (Japan), 2018}, booktitle = {Asia-Pacific Microwave Conference, Kyoto (Japan), 2018}, doi = {10.23919/APMC.2018.8617522}, pages = {569 -- 571}, language = {en} } @inproceedings{MichlerScheinerLurzetal., author = {Michler, Fabian and Scheiner, Benedict and Lurz, Fabian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {A Planar 24 GHz Switched-Beam Antenna Based on PIN Diodes for Remote Sensing Applications}, series = {2018 Asia-Pacific Microwave Conference (APMC)}, booktitle = {2018 Asia-Pacific Microwave Conference (APMC)}, doi = {10.23919/APMC.2018.8617541}, pages = {402 -- 404}, language = {en} } @inproceedings{ScheinerMannLurzetal., author = {Scheiner, Benedict and Mann, Sebastian and Lurz, Fabian and Michler, Fabian and Erhardt, Stefan and Lindner, Stefan and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Microstrip-to-waveguide transition in planar form using a substrate integrated waveguide}, series = {IEEE Radio and Wireless Symposium, 14-17 January 2018, Anaheim, California, USA}, booktitle = {IEEE Radio and Wireless Symposium, 14-17 January 2018, Anaheim, California, USA}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-0710-7}, doi = {10.1109/RWS.2018.8304934}, pages = {18 -- 20}, language = {en} } @inproceedings{LichtblauSanftlLurzetal., author = {Lichtblau, Johann and Sanftl, Benedikt and Lurz, Fabian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Examination of OFDM for wireless train-onboard communication}, series = {IEEE Radio and Wireless Symposium, 14-17 January 2018, Anaheim, California, USA}, booktitle = {IEEE Radio and Wireless Symposium, 14-17 January 2018, Anaheim, California, USA}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-0710-7}, doi = {10.1109/RWS.2018.8304981}, pages = {184 -- 187}, language = {en} } @inproceedings{FrankGhesquiereKiefletal., author = {Frank, Martin and Ghesquiere, Pol and Kiefl, Stefan and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Design and characterization of antenna arrays in eWLB package for 61 GHz radar applications}, series = {IEEE Radio and Wireless Symposium, 14-17 January 2018, Anaheim, California, USA}, booktitle = {IEEE Radio and Wireless Symposium, 14-17 January 2018, Anaheim, California, USA}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-0710-7}, doi = {10.1109/RWS.2018.8304933}, pages = {14 -- 17}, language = {en} } @inproceedings{KoelpinBudroweit, author = {K{\"o}lpin, Alexander and Budroweit, Jan}, title = {Design challenges of a highly integrated SDR platform for multiband spacecraft applications in radiation enviroments}, series = {Topical Workshop on Internet of Space, 14-17 January 2018, Anaheim, California, USA}, booktitle = {Topical Workshop on Internet of Space, 14-17 January 2018, Anaheim, California, USA}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-1294-1}, doi = {10.1109/TWIOS.2018.8311399}, pages = {9 -- 12}, language = {en} } @inproceedings{ScheinerLurzMichleretal., author = {Scheiner, Benedict and Lurz, Fabian and Michler, Fabian and Lindner, Stefan and Linz, Sarah and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Fast dual-synthesizer for six-port in-situ linearization in the 2.4 GHz ISM-band}, series = {GeMiC 2018, German Microwave Conference, March 12-14, Freiburg, Germany}, booktitle = {GeMiC 2018, German Microwave Conference, March 12-14, Freiburg, Germany}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-3-9812668-8-7}, doi = {10.23919/GEMIC.2018.8335070}, pages = {223 -- 226}, language = {en} } @inproceedings{LurzHofstetterLindneretal., author = {Lurz, Fabian and Hofstetter, Patrick and Lindner, Stefan and Linz, Sarah and Michler, Fabian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Low-power frequency synthesizer for multi-tone six-port radar}, series = {IEEE Topical Conference on Wireless Sensors and Sensor Networks, 14-17 January 2018, Anaheim, California, USA}, booktitle = {IEEE Topical Conference on Wireless Sensors and Sensor Networks, 14-17 January 2018, Anaheim, California, USA}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-1286-6}, doi = {10.1109/WISNET.2018.8311571}, pages = {84 -- 87}, language = {en} } @inproceedings{MuellerDanzecaGarciaAliaetal., author = {M{\"u}ller, Steffen and Danzeca, Salvatore and Garcia Al{\´i}a, Rub{\´e}n and Brugger, Markus and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Circuit design for a radiation tolerant 2.4 GHz synthesizer based on COTS components}, series = {IEEE Topical Workshop on Internet of Space, 14-17 January 2018, Anaheim, California, USA}, booktitle = {IEEE Topical Workshop on Internet of Space, 14-17 January 2018, Anaheim, California, USA}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-1294-1}, doi = {10.1109/TWIOS.2018.8311400}, pages = {13 -- 16}, language = {en} } @inproceedings{PflaumWeigelKoelpin, author = {Pflaum, Felix and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Ultra-low-power sensor node with wake-up-functionality for smart-sensor-applications}, series = {IEEE Topical Conference on Wireless Sensors and Sensor Networks, 14-17 January 2018, Anaheim, California, USA}, booktitle = {IEEE Topical Conference on Wireless Sensors and Sensor Networks, 14-17 January 2018, Anaheim, California, USA}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-1286-6}, doi = {10.1109/WISNET.2018.8311577}, pages = {107 -- 110}, language = {en} } @inproceedings{ErhardtPflaumWeigeletal., author = {Erhardt, Stefan and Pflaum, Felix and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Real-time GSM broadcast receiver on a Cortex-M4 microcontroller}, series = {IEEE Topical Conference on Wireless Sensors and Sensor Networks, 14-17 January 2018, Anaheim, California, USA}, booktitle = {IEEE Topical Conference on Wireless Sensors and Sensor Networks, 14-17 January 2018, Anaheim, California, USA}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-1286-6}, doi = {10.1109/WISNET.2018.8311563}, pages = {55 -- 58}, language = {en} } @inproceedings{LurzScheinerLinzetal., author = {Lurz, Fabian and Scheiner, Benedict and Linz, Sarah and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Compact PCB delay line for six-port based instantaneous frequency measurement}, series = {22nd International Microwave and Radar Conference MIKON, Pozn{\´a}n, May 14-17, 2018, Poland}, booktitle = {22nd International Microwave and Radar Conference MIKON, Pozn{\´a}n, May 14-17, 2018, Poland}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-83-949421-1-3}, doi = {10.23919/MIKON.2018.8405343}, pages = {87 -- 90}, language = {en} } @inproceedings{LinzLurzWeigeletal., author = {Linz, Sarah and Lurz, Fabian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {A review on six-port radar and its calibration techniques}, series = {22nd International Microwave and Radar Conference MIKON, Pozn{\´a}n, May 14-17, 2018, Poland}, booktitle = {22nd International Microwave and Radar Conference MIKON, Pozn{\´a}n, May 14-17, 2018, Poland}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-83-949421-1-3}, doi = {10.23919/MIKON.2018.8405341}, pages = {80 -- 83}, language = {en} } @inproceedings{ScheinerLurzMichleretal., author = {Scheiner, Benedict and Lurz, Fabian and Michler, Fabian and Linz, Sarah and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Six-Port Based Multitone and Low-Power Radar System for Waveguide Measurements in Smart Factories}, series = {48th European Microwave Conference (EuMC), Madrid, Spain 2018}, booktitle = {48th European Microwave Conference (EuMC), Madrid, Spain 2018}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-2-87487-051-4}, doi = {10.23919/EuMC.2018.8541518}, pages = {1065 -- 1068}, language = {en} } @inproceedings{LichtblauSanftlKrausetal., author = {Lichtblau, Johann and Sanftl, Benedikt and Kraus, Christian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Influence of train interior on train-onboard communication}, series = {22nd International Microwave and Radar Conference MIKON, Pozn{\´a}n, May 14-17, 2018, Poland}, booktitle = {22nd International Microwave and Radar Conference MIKON, Pozn{\´a}n, May 14-17, 2018, Poland}, publisher = {Piscataway, NJ}, address = {IEEE}, isbn = {978-83-949421-1-3}, doi = {10.23919/MIKON.2018.8405299}, pages = {605 -- 606}, language = {en} } @inproceedings{ErhardtGaedeKoelpinetal., author = {Erhardt, Stefan and G{\"a}de, Bernhard and K{\"o}lpin, Alexander and Weigel, Robert}, title = {Enhanced GSM Broadcast Receiver using the Phase Output of a Sub-GHz Transceiver}, series = {48th European Microwave Conference (EuMC), Madrid, Spain 2018}, booktitle = {48th European Microwave Conference (EuMC), Madrid, Spain 2018}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-2-87487-051-4}, doi = {10.23919/EuMC.2018.8541538}, pages = {1137 -- 1140}, language = {en} } @inproceedings{MichlerDenizLurzetal., author = {Michler, Fabian and Deniz, Harun and Lurz, Fabian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Performance Analysis of an Ultra Wideband Transceiver for Real-Time Localization}, series = {48th European Microwave Conference (EuMC), Madrid, Spain 2018}, booktitle = {48th European Microwave Conference (EuMC), Madrid, Spain 2018}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-2-87487-051-4}, doi = {10.23919/EuMC.2018.8541672}, pages = {1141 -- 1144}, language = {en} } @inproceedings{MichlerLindnerLurzetal., author = {Michler, Fabian and Lindner, Stefan and Lurz, Fabian and Erhardt, Stefan and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Zero-Bias Schottky Power Detector Design for Six-Port based Radar Systems}, series = {47th European Microwave Conference (EuMC), 10-12 Oct. 2017, Nuremberg, Germany}, booktitle = {47th European Microwave Conference (EuMC), 10-12 Oct. 2017, Nuremberg, Germany}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-2-87487-047-7}, doi = {10.23919/EuMC.2017.8230841}, pages = {228 -- 231}, language = {en} } @inproceedings{LindnerLurzLinzetal., author = {Lindner, Stefan and Lurz, Fabian and Linz, Sarah and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Mixer Assisted Interferometric Six-Port System for Accurate Distance Measurements}, series = {European Radar Conference, 11-13 Oct. 2017, Nuremberg, Germany}, booktitle = {European Radar Conference, 11-13 Oct. 2017, Nuremberg, Germany}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-2-87487-049-1}, doi = {10.23919/EURAD.2017.8249204}, pages = {291 -- 294}, language = {en} } @inproceedings{FrankWeigelKoelpin, author = {Frank, Martin and Weigel, Robert and K{\"o}lpin, Alexander}, title = {A Multilayer Reconfigurable Transmitarray in KBand for Beam Steering Applications}, series = {International Conference on Electromagnetics in Advanced Applications (ICEAA), 11-15 Sept. 2017 Verona, Italy}, booktitle = {International Conference on Electromagnetics in Advanced Applications (ICEAA), 11-15 Sept. 2017 Verona, Italy}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5090-4451-1}, doi = {10.1109/ICEAA.2017.8065361}, pages = {764 -- 767}, language = {en} } @inproceedings{ErhardtWeigelKoelpin, author = {Erhardt, Stefan and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Receiving GSM Broadcast Channels with an Ultra- Low Power Sub-GHz Transceiver}, series = {47th European Microwave Conference (EuMC), 10-12 Oct. 2017, Nuremberg, Germany}, booktitle = {47th European Microwave Conference (EuMC), 10-12 Oct. 2017, Nuremberg, Germany}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-2-87487-047-7}, doi = {10.23919/EuMC.2017.8230869}, pages = {380 -- 383}, language = {en} } @inproceedings{WillShiWeigeletal., author = {Will, Christoph and Shi, Kilin and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Advanced Template Matching Algorithm for Instantaneous Heartbeat Detection using Continuous Wave Radar Systems}, series = {First IEEE MTT-S International Microwave Bio Conference (IMBIOC), G{\"o}teborg (Sweden), 2017}, booktitle = {First IEEE MTT-S International Microwave Bio Conference (IMBIOC), G{\"o}teborg (Sweden), 2017}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-1713-7}, doi = {10.1109/IMBIOC.2017.7965797}, pages = {4}, language = {en} } @misc{RippergerGuentherWieseretal., author = {Ripperger, Simon and G{\"u}nther, Linus and Wieser, Hanna and Duda, Niklas and Hierold, Martin and Cassens, Bj{\"o}rn and Kapitza, R{\"u}diger and K{\"o}lpin, Alexander and Mayer, Frieder}, title = {Proximity sensors reveal social information transfer in maternity colonies of Common noctule bats}, series = {bioRxiv}, journal = {bioRxiv}, doi = 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doi = {10.1109/RWS45077.2020.9050025}, pages = {4}, language = {en} } @misc{MichlerShiSchellenbergeretal., author = {Michler, Fabian and Shi, Kilin and Schellenberger, Sven and Scheiner, Benedict and Lurz, Fabian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {On the impact of system nonlinearities in continuous-wave radar systems for vital parameter sensing}, series = {IEEE Topical Conference on Wireless Sensors and Sensor Networks, 26-29 Jan. 2020, San Antonio, TX, USA}, journal = {IEEE Topical Conference on Wireless Sensors and Sensor Networks, 26-29 Jan. 2020, San Antonio, TX, USA}, isbn = {978-172813355-3}, doi = {10.1109/WiSNeT46826.2020.9037603}, pages = {3}, language = {en} } @misc{DornErhardtWeigeletal., author = {Dorn, Christian and Erhardt, Stefan and Weigel, Robert and K{\"o}lpin, Alexander and Lurz, Fabian}, title = {Low-profile and low-cost transmitarray antenna at 122 GHz based on unit-cells with 1-bit phase resolution}, series = {IEEE Topical Conference on Wireless Sensors and Sensor Networks,26-29 Jan. 2020, San Antonio, TX, USA}, journal = {IEEE Topical Conference on Wireless Sensors and Sensor Networks,26-29 Jan. 2020, San Antonio, TX, USA}, isbn = {978-172813355-3}, doi = {10.1109/WiSNeT46826.2020.9037602}, pages = {4}, language = {en} } @misc{ShiSchellenbergerMichleretal., author = {Shi, Kilin and Schellenberger, Sven and Michler, Fabian and Steigleder, Tobias and Malessa, Anke and Lurz, Fabian and Ostgathe, Christoph and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Automatic Signal Quality Index Determination of Radar-Recorded Heart Sound Signals Using Ensemble Classification}, series = {IEEE Transactions on Biomedical Engineering}, volume = {67}, journal = {IEEE Transactions on Biomedical Engineering}, number = {3}, issn = {1558-2531}, doi = {10.1109/TBME.2019.2921071}, pages = {773 -- 785}, language = {en} } @misc{LurzMichlerScheineretal., author = {Lurz, Fabian and Michler, Fabian and Scheiner, Benedict and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Microw(h)att?! Ultralow-Power Six-Port Radar}, series = {IEEE Microwave Magazine}, volume = {19}, journal = {IEEE Microwave Magazine}, number = {1}, issn = {1527-3342}, doi = {10.1109/MMM.2017.2759640}, pages = {91 -- 98}, language = {en} } @misc{RippergerCarterDudaetal., author = {Ripperger, Simon and Carter, Gerald G. and Duda, Niklas and K{\"o}lpin, Alexander and Cassens, Bj{\"o}rn and Kapitza, R{\"u}diger and Josic, Darija and Berr{\´i}o-Mart{\´i}nez, Jineth and Page, Rachel A. and Mayer, Frieder}, title = {Vampire Bats that Cooperate in the Lab Maintain Their Social Networks in the Wild}, series = {Current Biology}, volume = {29}, journal = {Current Biology}, number = {23}, issn = {0960-9822}, doi = {10.1016/j.cub.2019.10.024}, pages = {4139 -- 4144.e4}, language = {en} } @misc{ShiSchellenbergerWilletal., author = {Shi, Kilin and Schellenberger, Sven and Will, Christoph and Steigleder, Tobias and Michler, Fabian and Fuchs, Jonas and Weigel, Robert and Ostgathe, Christoph and K{\"o}lpin, Alexander}, title = {A dataset of radar-recorded heart sounds and vital signs including synchronised reference sensor signals}, series = {Scientific Data}, volume = {7}, journal = {Scientific Data}, number = {1}, issn = {2052-4463}, doi = {10.15480/882.2830}, pages = {1 -- 12}, language = {en} } @misc{ErhardtKollerLurzetal., author = {Erhardt, Stefan and Koller, Josef and Lurz, Fabian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {An Automatic Detection and Data Downlink System for Miniature Bat Loggers}, series = {IEEE Radio and Wireless Symposium, 26-29 Jan. 2020, San Antonio, TX, USA}, journal = {IEEE Radio and Wireless Symposium, 26-29 Jan. 2020, San Antonio, TX, USA}, isbn = {978-172811120-9}, issn = {2164-2958}, doi = {10.1109/RWS45077.2020.9050051}, pages = {247 -- 250}, language = {en} } @misc{MichlerScheinerLurzetal., author = {Michler, Fabian and Scheiner, Benedict and Lurz, Fabian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {(Micro)metering with Microwaves: A Low-Cost Low-Power High-Precision Radar System}, series = {IEEE Microwave Magazine}, volume = {20}, journal = {IEEE Microwave Magazine}, number = {1}, issn = {1527-3342}, doi = {10.1109/MMM.2018.2875612}, pages = {91 -- 97}, language = {en} } @misc{FrankLurzWeigeletal., author = {Frank, Martin and Lurz, Fabian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Universal low-cost transmitarray antenna design at 61 GHz for beam steering with different feed antennas}, series = {WSA 2020 : 24th International ITG Workshop on Smart Antennas : February 18-20, 2020, Hamburg, Germany}, journal = {WSA 2020 : 24th International ITG Workshop on Smart Antennas : February 18-20, 2020, Hamburg, Germany}, publisher = {VDE VERLAG GmbH}, address = {Berlin ; Offenbach}, isbn = {978-380075200-3}, pages = {1 CD-ROM}, language = {en} } @misc{SchellenbergerShiSteiglederetal., author = {Schellenberger, Sven and Shi, Kilin and Steigleder, Tobias and Malessa, Anke and Michler, Fabian and Hameyer, Laura and Neumann, Nina and Lurz, Fabian and Weigel, Robert and Ostgathe, Christoph and K{\"o}lpin, Alexander}, title = {A dataset of clinically recorded radar vital signs with synchronised reference sensor signals}, series = {Scientific Data}, volume = {7}, journal = {Scientific Data}, number = {1}, issn = {2052-4463}, doi = {10.15480/882.2900}, language = {en} } @misc{MichlerShiSchellenbergeretal., author = {Michler, Fabian and Shi, Kilin and Schellenberger, Sven and Steigleder, Tobias and Malessa, Anke and Hameyer, Laura and Neumann, Nina and Lurz, Fabian and Ostgathe, Christoph and Weigel, Robert and K{\"o}lpin, Alexander}, title = {A Clinically Evaluated Interferometric Continuous-Wave Radar System for the Contactless Measurement of Human Vital Parameters}, series = {Sensors}, volume = {19}, journal = {Sensors}, number = {11}, issn = {1424-8220}, doi = {10.3390/s19112492}, pages = {19}, language = {en} } @misc{ScheinerSchellenbergerShietal., author = {Scheiner, Benedict 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