Zobrazeno 1 - 10
of 111 437
pro vyhledávání: '"A Shields"'
Autor:
Rahmatpour, Ahmad, Shields, Allison, Mondal, Parmita, Naghdi, Parisa, Udin, Michael, Williams, Kyle A, Bhurwani, Mohammad Mahdi Shiraz, Nagesh, Swetadri Vasan Setlur, Ionita, Ciprian N
This study leverages convolutional neural networks to enhance the temporal resolution of 3D angiography in intracranial aneurysms focusing on the reconstruction of volumetric contrast data from sparse and limited projections. Three patient-specific I
Externí odkaz:
http://arxiv.org/abs/2411.09632
Autor:
Mondal, Parmita, Shields, Allison, Bhurwani, Mohammad Mahdi Shiraz, Williams, Kyle A, Nagesh, Swetadri Vasan Setlur, Siddiqui, Adnan H, Ionita, Ciprian N
This study aims to mitigate these biases and enhance QA analysis by applying a path-length correction (PLC) correction, followed by singular value decomposition (SVD)-based deconvolution, to angiograms obtained through both in-silico and in-vitro met
Externí odkaz:
http://arxiv.org/abs/2411.08185
Autor:
Mondal, Parmita, Shields, Allison, Bhurwani, Mohammad Mahdi Shiraz, Williams, Kyle A, Ionita, Ciprian N
Publikováno v:
Medical Imaging 2024: Physics of Medical Imaging, 139, (2024)
In Angiographic Parametric Imaging (API), accurate estimation of parameters from Time Density Curves (TDC) is crucial. However, these estimations are often marred by errors arising from factors such as patient motion, procedural preferences, image no
Externí odkaz:
http://arxiv.org/abs/2411.05287
Autor:
Vogl, Christian, Taubenberger, Stefan, Csörnyei, Géza, Leibundgut, Bruno, Kerzendorf, Wolfgang E., Sim, Stuart A., Blondin, Stéphane, Flörs, Andreas, Holas, Alexander, Shields, Joshua V., Spyromilio, Jason, Suyu, Sherry H., Hillebrandt, Wolfgang
The ongoing discrepancy in the Hubble constant ($H_0$) estimates obtained through local distance ladder methods and early universe observations poses a significant challenge to the $\Lambda$CDM model, suggesting potential new physics. Type II superno
Externí odkaz:
http://arxiv.org/abs/2411.04968
Autor:
Mondal, Parmita, Nagesh, Swetadri Vasan Setlur, Sommers-Thaler, Sam, Shields, Allison, Bhurwani, Mohammad Mahdi Shiraz, Williams, Kyle A, Baig, Ammad, Snyder, Kenneth, Siddiqui, Adnan H, Levy, Elad, Ionita, Ciprian N
Intraoperative 2D quantitative angiography (QA) for intracranial aneurysms (IAs) has accuracy challenges due to the variability of hand injections. Despite the success of singular value decomposition (SVD) algorithms in reducing biases in computed to
Externí odkaz:
http://arxiv.org/abs/2411.03655
Autor:
Olivo, Vicente Amado, Kerzendorf, Wolfgang, Cherinka, Brian, Shields, Joshua V., Didier, Annie, von der Wense, Katharina
Large scientific institutions, such as the Space Telescope Science Institute, track the usage of their facilities to understand the needs of the research community. Astrophysicists incorporate facility usage data into their scientific publications, e
Externí odkaz:
http://arxiv.org/abs/2411.00987
Autor:
Pope, Simon A., Roth, Diane J., Bansal, Aakash, Mousa, Mostafa, Rezanejad, Ashkan, Forte, Antonio E., Nash, Geoff. R., Singleton, Lawrence, Langfeldt, Felix, Cheer, Jordan, Henthorn, Stephen, Hooper, Ian R., Hendry, Euan, Powell, Alex W., Souslov, Anton, Plum, Eric, Sun, Kai, de Groot, C. H., Muskens, Otto L., Shields, Joe, De Galarreta, Carlota Ruiz, Wright, C. David, Kocabas, Coskun, Ergoktas, M. Said, Xiao, Jianling, Schulz, Sebastian A., Di Falco, Andrea, Krasavin, Alexey V., Zayats, Anatoly V., Galiffi, Emanuele
Active metamaterials are engineered structures that possess novel properties that can be changed after the point of manufacture. Their novel properties arise predominantly from their physical structure, as opposed to their chemical composition and ca
Externí odkaz:
http://arxiv.org/abs/2411.09711
Autor:
Brzosko, Adam, Woodward, Robert I, Lo, Yuen San, Pittaluga, Mirko, Smith, Peter Raymond, Dynes, James F, Shields, Andrew J
Publikováno v:
Optica Quantum 2, 365-370 (2024)
We report a proof-of-principle realisation of a decoy-state BB84 QKD protocol with phase encoding over a record-breaking 17 km of MMF at a rate of 193 kbits/s, as well as over 1 Mbit/s at a distance of 1 km. These results suggest that QKD can be depl
Externí odkaz:
http://arxiv.org/abs/2410.18646
Autor:
Xu, Bin, Wu, Zhao, Lu, Jiayin, Shields, Michael D., Rycroft, Chris H., Bamer, Franz, Falk, Michael L.
This paper develops a general data-driven approach to stochastic elastoplastic modelling that leverages atomistic simulation data directly rather than by fitting parameters. The approach is developed in the context of metallic glasses, which present
Externí odkaz:
http://arxiv.org/abs/2410.00760
Autor:
Yang, Guoce, Wang, Mengyun, Lee, June Sang, Farmakidis, Nikolaos, Shields, Joe, de Galarreta, Carlota Ruiz, Kendall, Stuart, Bertolotti, Jacopo, Moskalenko, Andriy, Huang, Kairan, Alù, Andrea, Wright, C. David, Bhaskaran, Harish
The next generation of smart imaging and vision systems will require compact and tunable optical computing hardware to perform high-speed and low-power image processing. These requirements are driving the development of computing metasurfaces to real
Externí odkaz:
http://arxiv.org/abs/2409.10976