Zobrazeno 1 - 10
of 479
pro vyhledávání: '"Zhang Ruihan"'
Publikováno v:
Geospatial Health, Vol 19, Iss 2 (2024)
In order to effectively cope with the situation caused by the COVID-19 pandemic, cases should be concentrated in designated medical institutions with full capability to deal with patients infected by this virus. We studied the location of such hospit
Externí odkaz:
https://doaj.org/article/698df65e2a3b429ab28805098e6b7c9e
Autor:
Zhang, Ruihan, Baranec, Christoph, van Dam, Marcos A., Chun, Mark R., Riddle, Reed, Ou, James
Direct imaging of exoplanets allows us to measure positions and chemical signatures of exoplanets. Given the limited resources for space observations where the atmosphere is absent, we want to make these measurements from the ground. However, it is d
Externí odkaz:
http://arxiv.org/abs/2407.14677
Autor:
Zhang, Ruihan, Baeten, Max, Chun, Mark R., Lee, Ellen, Connelley, Michael, Lai, Olivier, Kuiper, Stefan, Ryan, Alan, Bos, Arjo, Bowens-Rubin, Rachel, Hinz, Philip M.
We performed closed-loop lab testing of large-format deformable mirrors (DMs) with hybrid variable reluctance actuators. TNO has been developing the hybrid variable reluctance actuators in support for a new generation of adaptive secondary mirrors (A
Externí odkaz:
http://arxiv.org/abs/2407.11289
Autor:
Lee, Ellen, Chun, Mark, Lai, Olivier, Zhang, Ruihan, Baeten, Max, Bos, Arjo, Kidron, Matias, Kamphues, Fred, Kuiper, Stefan, Jonker, Wouter, Connelley, Michael, Rayner, John, Ryan, Alan, Hinz, Philip, Bowens-Rubin, Rachel, Lockhart, Charles, Kelii, Michael
We are developing an adaptive secondary mirror (ASM) that uses a new actuator technology created by the Netherlands Organization for Applied Scientific Research (TNO). The TNO hybrid variable reluctance actuators have more than an order of magnitude
Externí odkaz:
http://arxiv.org/abs/2407.06444
Autor:
Baranec, Christoph, Ou, James, Riddle, Reed, Zhang, Ruihan, Mckay, Luke, Rampy, Rachel, Bonnet, Morgan, Hamilton, Iven, Ching, Greg, Young, Jessica, Salama, Maıssa, Barnes, Paul, Jacobson, Shane, Onaka, Peter, Chun, Mark, Werber, Zachary, Powell, Keith, van Dam, Marcos A., Shappee, Benjamin
We installed the next-generation automated laser adaptive optics system, Robo-AO-2, on the University of Hawaii 2.2-m telescope on Maunakea in 2023. We engineered Robo-AO-2 to deliver robotic, diffraction-limited observations at visible and near-infr
Externí odkaz:
http://arxiv.org/abs/2407.00582
Autor:
Zhang, Ruihan, Sun, Jun
Adversarial examples pose a security threat to many critical systems built on neural networks. Given that deterministic robustness often comes with significantly reduced accuracy, probabilistic robustness (i.e., the probability of having the same lab
Externí odkaz:
http://arxiv.org/abs/2405.14923
Autor:
Zhang, Ruihan, Sun, Jun
Adversarial examples pose a security threat to many critical systems built on neural networks. While certified training improves robustness, it also decreases accuracy noticeably. Despite various proposals for addressing this issue, the significant a
Externí odkaz:
http://arxiv.org/abs/2405.11547
This paper presents Visual Evaluative AI, a decision aid that provides positive and negative evidence from image data for a given hypothesis. This tool finds high-level human concepts in an image and generates the Weight of Evidence (WoE) for each hy
Externí odkaz:
http://arxiv.org/abs/2407.04710
Autor:
Yao, Jingyu, Sheng, Haohao, Zhang, Ruihan, Pang, Rongtian, Zhou, Jin-Jian, Wu, Quansheng, Weng, Hongming, Dai, Xi, Fang, Zhong, Wang, Zhijun
Publikováno v:
Chinese Physics Letters 41, 097101 (2024)
By systematic theoretical calculations, we have revealed an excitonic insulator (EI) in the Ta2Pd3Te5 monolayer. The bulk Ta2Pd3Te5 is a van der Waals (vdW) layered compound, whereas the vdW layer can be obtained through exfoliation or molecular-beam
Externí odkaz:
http://arxiv.org/abs/2401.01222
We examine the relationship between metallicity and $J-K$ color for 64 benchmark late-M and L dwarfs, all of which are wide companions to higher mass stars, and 6 of which are new discoveries. We assess the correlation between the $\Delta(J-K)$ color
Externí odkaz:
http://arxiv.org/abs/2311.04862