Sequential coronagraphic low-order wavefront control

Autor: Bottom, Michael, Walker, Samuel A. U., Cunnyngham, Ian, Guthery, Charlotte, Delorme, Jacques-Robert

Coronagraphs are highly sensitive to wavefront errors, with performance degrading rapidly in the presence of low-order aberrations. Correcting these aberrations at the coronagraphic focal plane is key to optimal performance. We present two new method

Externí odkaz: http://arxiv.org/abs/2312.06806

Control of a simulated MRI scanner with deep reinforcement learning

Autor: Walker-Samuel, Simon

Magnetic resonance imaging (MRI) is a highly versatile and widely used clinical imaging tool. The content of MRI images is controlled by an acquisition sequence, which coordinates the timing and magnitude of the scanner hardware activations, which sh

Externí odkaz: http://arxiv.org/abs/2305.13979

Cosmic kidney disease: an integrated pan-omic, physiological and morphological study into spaceflight-induced renal dysfunction

Autor: Keith Siew, Kevin A. Nestler, Charlotte Nelson, Viola D’Ambrosio, Chutong Zhong, Zhongwang Li, Alessandra Grillo, Elizabeth R. Wan, Vaksha Patel, Eliah Overbey, JangKeun Kim, Sanghee Yun, Michael B. Vaughan, Chris Cheshire, Laura Cubitt, Jessica Broni-Tabi, Maneera Yousef Al-Jaber, Valery Boyko, Cem Meydan, Peter Barker, Shehbeel Arif, Fatemeh Afsari, Noah Allen, Mohammed Al-Maadheed, Selin Altinok, Nourdine Bah, Samuel Border, Amanda L. Brown, Keith Burling, Margareth Cheng-Campbell, Lorianna M. Colón, Lovorka Degoricija, Nichola Figg, Rebecca Finch, Jonathan Foox, Pouya Faridi, Alison French, Samrawit Gebre, Peter Gordon, Nadia Houerbi, Hossein Valipour Kahrood, Frederico C. Kiffer, Aleksandra S. Klosinska, Angela Kubik, Han-Chung Lee, Yinghui Li, Nicholas Lucarelli, Anthony L. Marullo, Irina Matei, Colleen M. McCann, Sayat Mimar, Ahmed Naglah, Jérôme Nicod, Kevin M. O’Shaughnessy, Lorraine Christine De Oliveira, Leah Oswalt, Laura Ioana Patras, San-huei Lai Polo, María Rodríguez-Lopez, Candice Roufosse, Omid Sadeghi-Alavijeh, Rebekah Sanchez-Hodge, Anindya S. Paul, Ralf Bernd Schittenhelm, Annalise Schweickart, Ryan T. Scott, Terry Chin Choy Lim Kam Sian, Willian A. da Silveira, Hubert Slawinski, Daniel Snell, Julio Sosa, Amanda M. Saravia-Butler, Marshall Tabetah, Erwin Tanuwidjaya, Simon Walker-Samuel, Xiaoping Yang, Yasmin, Haijian Zhang, Jasminka Godovac-Zimmermann, Pinaki Sarder, Lauren M. Sanders, Sylvain V. Costes, Robert A. A. Campbell, Fathi Karouia, Vidya Mohamed-Alis, Samuel Rodriques, Steven Lynham, Joel Ricky Steele, Sergio Baranzini, Hossein Fazelinia, Zhongquan Dai, Akira Uruno, Dai Shiba, Masayuki Yamamoto, Eduardo A.C.Almeida, Elizabeth Blaber, Jonathan C. Schisler, Amelia J. Eisch, Masafumi Muratani, Sara R. Zwart, Scott M. Smith, Jonathan M. Galazka, Christopher E. Mason, Afshin Beheshti, Stephen B. Walsh

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-20 (2024)

Abstract Missions into Deep Space are planned this decade. Yet the health consequences of exposure to microgravity and galactic cosmic radiation (GCR) over years-long missions on indispensable visceral organs such as the kidney are largely unexplored

Externí odkaz: https://doaj.org/article/314b862fbe6c4c54a23cb008317e48c9

An HST/STIS View of Protoplanetary Disks in Upper Scorpius: Observations of Three Young M-Stars

Autor: Walker, Samuel, Millar-Blanchaer, Maxwell, Ren, Bin, Kalas, Paul, Carpenter, John

We present observations of three protoplanetary disks in visible scattered light around M-type stars in the Upper Scorpius OB association using the STIS instrument on the Hubble Space Telescope. The disks around stars 2MASS J16090075-1908526, 2MASS J

Externí odkaz: http://arxiv.org/abs/2104.06447

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