Results 111 to 120 of about 5,323,059 (392)

Metasurface Doppler Cloak for Broadband Radar Stealth

Advanced Physics Research
Concealing an aircraft is a multi‐faceted endeavor, notably involving radio and infrared frequencies. In a radar stealth context, it often translates to the reduction of the radar cross‐section (RCS).
Tanguy Lopez, Thomas Lepetit, Badreddine Ratni, Shah Nawaz Burokur   +3 more
doaj   +1 more source

Folded Chirp-Rate Shift Keying Modulation for LEO Satellite IoT

IEEE Access, 2019
In the low earth orbit (LEO) satellite Internet of Things (IoT), the IoT devices can be distributed in remote areas (e.g., desert, ocean, and forest) for some special applications, where they are unable to have direct terrestrial network accesses and can
Chao Yang, Mei Wang, Lin Zheng, Guangpeng Zhou   +3 more
doaj   +1 more source

Single‐Cell Transcriptome Analysis Reveals That Hmga2 Regulates Neuroinflammation and Retinal Function by Modulating Müller Cell Autophagy Through PI3K/AKT Signaling Following MCAO‐Induced Retinal Ischemia

Advanced Science, EarlyView.
Employing snRNA‐seq post‐MCAO‐induced retinal ischemia (RI), this study revealed a novel Hmga2‐high Müller cell subpopulation. Hmga2 knockout alleviated neuroinflammation and RI symptoms, potentially by binding PI3K and regulating Müller cell autophagy.
Weihao Lv, Juzheng Yuan, Zhe Ruan, Ya‐nan Dou, Hongchen Zhang, Xiaowei Fei, Leiying Chen, Zehan Zhang, Kai Yang, Xiuquan Wu, Zhou Fei, Fei Fei   +11 more
wiley   +1 more source

Traffic control system and method [PDF]

, 1974
Frequency of carrier received by aircraft is measured and compared with reference to indicate magnitude of Doppler shift. One Doppler frequency range is selected and indicated by digital signal.
Allen, W. K., Hollenbaugh, R. C., Laughlin, C. R.   +2 more
core   +1 more source

Personalized Medication for Chronic Diseases Using Multimodal Data‐Driven Chain‐of‐Decisions

Advanced Science, EarlyView.
A MDD‐CoD is proposed for personalized chronic disease medication. The framework simulates clinical chain‐of‐decisions through three linked deep learning tasks, validated on multi‐center datasets (3 hospitals, 4 diseases), demonstrating enhanced generalization and interpretability in cross‐disease applications.
Xiaoli Chu, Yiheng Ye, Siqiao Tang, Miaoru Han, Guowei Wang, Shuai Lin, Bingzhen Sun, Qingchun Huang, Yan Zhang, Xiaodong Chu, Kun Bao   +10 more
wiley   +1 more source

Reverse Doppler Effect of Sound

, 2009
We report observation of reverse Doppler effect in a double negative acoustic metamaterial. The metamaterial exhibited negative phase velocity and positive group velocity.
C. Caloz, Choon Mahn Park, Chul Koo Kim, P. Markoš, Sam Hyeon Lee, Yong Mun Seo, Zhi Guo Wang   +6 more
core   +1 more source

Single‐Nucleus RNA Sequencing Reveals Mid‐Gestational Neurodevelopment Features in the Superior Temporal Plane from Fetuses with Nonsyndromic Cleft Lip and Palate

Advanced Science, EarlyView.
Single‐nucleus RNA sequencing of mid‐gestation brains from fetuses with nonsyndromic cleft lip and palate reveals major disruptions in cell composition, cell‐to‐cell signaling, and gene regulation. The transcription factor MEF2C is identified as a central regulator of these changes and shows that lowering MEF2C impairs synapse formation, linking cleft ...
Liu‐Lin Xiong, Xin‐Wei Huang, Qiu‐Xia Xiao, Ying‐Gang Zheng, Hao‐Yue Qin, Chang‐Le Fang, Li Chen, Ruo‐Lan Du, Qiu‐Lin Wang, Li‐Ren Huangfu, Ye‐Qing Fei, Yang‐Yang Zhao, Chen‐Yang Zhai, Ze‐Mian Chen, Shi‐Kun Yuan, Yu‐Ji Zhou, Xing‐Man He, Ting‐Ting Zhi, Xiao‐He Tian, Ting‐Hua Wang   +19 more
wiley   +1 more source

Theory of the cold collision frequency shift in 1S--2S spectroscopy of Bose-Einstein-condensed and non-condensed hydrogen

, 2001
We show that a correct formulation of the cold collision frequency shift for two photon spectroscopy of Bose-condensed and cold non-Bose-condensed hydrogen is consistent with experimental data.
A S Bradley, C W Gardiner, Fried D G, Gardiner C W, Killian T C, Morgan S A, Morgan S A   +6 more
core   +1 more source

Shear Stress Targeted Delivery of Nitroglycerin to Brain Collaterals Improves Ischaemic Stroke Outcome

Advanced Science, EarlyView.
Shear‐activated nanoparticles carrying nitroglycerin selectively target high‐shear stress collateral vessels during ischaemic stroke, enhancing blood flow to at‐risk brain without systemic side effects. This novel approach significantly improves outcomes in animal models, outperforming conventional nitroglycerin delivery.
Magdalena Litman, Sara Azarpeykan, Rebecca J Hood, Kristy Martin, Debbie Pepperall, Daniel Omileke, Fern Williams, Oktay Uzun, Deen Bhatta, Yuen K Yong, Alex Chan, Nicholas Hough, Sarah Johnson, Pablo Garcia Bermejo, Ferdinand Miteff, Carlos Garcia Esperon, Yvonne Couch, Alastair M Buchan, Neil J Spratt, Netanel Korin, Donald E Ingber, Daniel J Beard   +21 more
wiley   +1 more source

FMO2 Promotes Angiogenesis via Regulation of N‐Acetylornithine

Advanced Science, EarlyView.
This study identifies flavin‐containing monooxygenase 2 (FMO2) as a novel proangiogenic regulator in endothelial cells. Targeted FMO2 ablation impairs vessel sprouting, whereas its compensation potently enhances angiogenesis. Metabolomics and single‐cell sequencing reveal that FMO2 drives vascular growth via the N‐acetylornithine/ATF3/NOTCH1 axis ...
Jingyi Wang, Yinghui Xu, Xianpeng Wu, Mo Li, Changchen Xiao, Zaiyang Fu, Yongjian Chen, Qingju Li, Yating Ruan, Jing Zhao, Zhiwei Zhong, Jinghai Chen, Wei Zhu, Jinliang Nan, Cheng Ni, Xinyang Hu   +15 more
wiley   +1 more source