Results 61 to 70 of about 15,653,169 (406)

Vietnam roadmap to master satellite technology

Vietnam Journal of Science, Technology and Engineering, 2017
Vietnam has spent a considerable amount of money to install a satellite exploration program. This article presents the most important achievements of the implementation of this program in Vietnam and gives recommendations for supportive policies that ...
Anh Tuan Pham
doaj   +1 more source

Space Propulsion Technology for Small Spacecraft

Proceedings of the IEEE, 2018
As small satellites become more popular and capable, strategies to provide in-space propulsion increase in importance. Applications range from orbital changes and maintenance, attitude control and desaturation of reaction wheels to drag compensation and ...
D. Krejci, P. Lozano
semanticscholar   +1 more source

The 2023 terahertz science and technology roadmap

, 2023
Terahertz (THz) radiation encompasses a wide spectral range within the electromagnetic spectrum that extends from microwaves to the far infrared (100 GHz–∼30 THz).
A. Leitenstorfer, A. S. Moskalenko, T. Kampfrath, J. Kono, E. Castro-Camus, K. Peng, N. Qureshi, D. Turchinovich, Koichiro Tanaka, A. Markelz, M. Havenith, Cameron Hough, H. Joyce, Willie J Padilla, Binbin Zhou, Ki-Yong Kim, Xi-Cheng Zhang, P. Jepsen, S. Dhillon, M. Vitiello, E. Linfield, A. Davies, M. Hoffmann, R. Lewis, M. Tonouchi, P. Klarskov, T. Seifert, Y. Gerasimenko, D. Mihailovic, R. Huber, J. Boland, O. Mitrofanov, P. Dean, B. Ellison, P. Huggard, S. Rea, C. Walker, D. Leisawitz, Jianxun Gao, Chong Li, Qin Chen, G. Valušis, V. Wallace, E. Pickwell‐MacPherson, X. Shang, J. Hesler, N. Ridler, C. Renaud, I. Kallfass, T. Nagatsuma, J. Zeitler, D. Arnone, M. Johnston, J. Cunningham   +53 more
semanticscholar   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

Accurate but fragile passive non-line-of-sight recognition

Communications Physics, 2021
Non-line-of-sight imaging allows reconstruction and recognition of an obscured object, but external manipulation of the data can lead to inaccurate results.
Yangyang Wang, Yaqin Zhang, Meiyu Huang, Zhao Chen, Yi Jia, Yudong Weng, Lin Xiao, Xueshuang Xiang   +7 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

A Bridge Neural Network-Based Optical-SAR Image Joint Intelligent Interpretation Framework

Space: Science & Technology, 2021
The current interpretation technology of remote sensing images is mainly focused on single-modal data, which cannot fully utilize the complementary and correlated information of multimodal data with heterogeneous characteristics, especially for synthetic
Meiyu Huang, Yao Xu, Lixin Qian, Weili Shi, Yaqin Zhang, Wei Bao, Nan Wang, Xuejiao Liu, Xueshuang Xiang   +8 more
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Refined STACK-CNN for Meteor and Space Debris Detection in Highly Variable Backgrounds

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In this article, we present cutting-edge machine learning-based techniques for the detection and reconstruction of meteors and space debris in the Mini-EUSO experiment, a detector installed on board of the International Space Station, and pointing toward
Leonardo Olivi, Antonio Montanaro, Mario Edoardo Bertaina, Antonio Giulio Coretti, Dario Barghini, Matteo Battisti, Alexander Belov, Marta Bianciotto, Francesca Bisconti, Carl Blaksley, Sylvie Blin, Karl Bolmgren, Giorgio Cambie, Francesca Capel, Marco Casolino, Igor Churilo, Marino Crisconio, Christophe De La Taille, Toshikazu Ebisuzaki, Johannes Eser, Francesco Fenu, George Filippatos, Massimo Alberto Franceschi, Christer Fuglesang, Alessio Golzio, Philippe Gorodetzky, Fumiyoshi Kajino, Hiroshi Kasuga, Pavel Klimov, Viktoria Kungel, Vladimir Kuznetsov, Massimiliano Manfrin, Laura Marcelli, Gabriele Mascetti, Wlodzimierz Marszal, Marco Mignone, Hiroko Miyamoto, Alexey Murashov, Tommaso Napolitano, Hitoshi Ohmori, Angela Olinto, Etienne Parizot, Piergiorgio Picozza, Lech Wiktor Piotrowski, Zbigniew Plebaniak, Guillaume Prevot, Enzo Reali, Marco Ricci, Giulia Romoli, Naoto Sakaki, Sergei Sharakin, Kenji Shinozaki, Jacek Szabelski, Yoshiyuki Takizawa, Valerio Vagelli, Giovanni Valentini, Michal Vrabel, Lawrence Wiencke, Mikhail Zotov   +58 more
doaj   +1 more source

Cell density–dependent nuclear‐cytoplasmic shuttling of SETDB1 integrates with Hippo signaling to regulate YAP1‐mediated transcription

FEBS Letters, EarlyView.
At low cell density, SETDB1 and YAP1 accumulate in the nucleus. As cell density increases, the Hippo pathway is gradually activated, and SETDB1 is associated with increased YAP1 phosphorylation. At high cell density, phosphorylated YAP1 is sequestered in the cytoplasm, while SETDB1 becomes polyubiquitinated and degraded by the ubiquitin–proteasome ...
Jaemin Eom, Jaewoong Jang, Jung Sun Park, Yong‐Kook Kang   +3 more
wiley   +1 more source