Results 61 to 70 of about 20,927 (220)

Experimental Results of a 3D Millimeter-Wave Compressive-Reflector-Antenna Imaging System

, 2018
This letter presents the first experimental results of our three-dimensional (3D) millimeter-wave (mm-wave) Compressive-Reflector-Antenna (CRA) imaging system.
Bisulco, A., Gomez-Sousa, Hipolito, Graham, Katherine, Heredia-Juesas, Juan, Martinez-Lorenzo, Jose A., Molaei, Ali, Tirado, Luis, Zhang, Weite   +7 more
core   +1 more source

Maximum likelihood analysis of systematic errors in interferometric observations of the cosmic microwave background [PDF]

, 2013
We investigate the impact of instrumental systematic errors in interferometric measurements of the cosmic microwave background (CMB) temperature and polarization power spectra.
Andrei Korotkov, Ata Karakci, Battistelli, Benjamin D. Wandelt, Bond, Bunn, Bunn, Bunn, Bunn, Bunn, Bunn, Bunn, Emory F. Bunn, Gorski, Gregory S. Tucker, Guth, Hu, Hu, Kamionkowski, Kamionkowski, Kendall, Komatsu, Larson, Le Zhang, Lewis, Lewis, Miller, Myers, O'Sullivan, Park, Park, Paul M. Sutter, Pearson, Peter Timbie, Scott, Shimon, Su, Timbie, White, Yadav, Zaldarriaga, Zaldarriaga   +41 more
core   +5 more sources

Stabilization of Single Metal Atoms on Graphitic Carbon Nitride: Synthetic Strategies and Emerging Applications

Advanced Science, EarlyView.
This review highlights recent advancements in stabilizing single metal atoms on graphitic carbon nitride emphasizing innovative synthesis strategies and emerging applications in electrocatalysis, photocatalysis and organic transformations, along with key challenges and future perspective. Abstract Emerging as a new frontier in catalysis science, single‐
Wenyao Zhang, Junjie Cui, Zhenjie Yao, Boyuan Zhu, Nithinraj Panangattu Dharmarajan, Ajayan Vinu, Junwu Zhu   +6 more
wiley   +1 more source

MICROWAVE IMAGING OF NON-RIGID MOVING TARGET USING 2D SPARSE MIMO ARRAY

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
This paper develops a microwave/mmw (millimeter-wave) imaging method for moving objects of non-rigid body which can be used in the heavy traffic scenarios. This method is proposed with a 2D sparse MIMO (multiple-input multiple-output) array composed of two orthogonal linear arrays.
Zhanyu Zhu, Lei Kuang, Feng Xu
openaire   +2 more sources

Injectable Chondroitin Sulfate Methacrylate Hydrogel Microspheres Co‐Loaded with GLPM Nanozyme, Dexamethasone, and Stem Cells for Synergistic Osteoarthritis Therapy

Advanced Science, EarlyView.
A multifunctional injectable microsphere system is fabricated via UV‐assisted microfluidic cross‐linking, integrating nanozyme‐based ROS scavenging, sustained dexamethasone release, and stem cell delivery. Upon IA injection, the microspheres adapt to joint stress, suppress inflammation, and promote cartilage regeneration, offering a minimally invasive ...
Xiaochen Feng, Ying Fang, Hongwei Yu, Yicheng Wang, Yunze Xu, Chunxiao Shi, Haike Xia, Ranjith Kumar Kankala, Aizheng Chen, Shibin Wang, Chaoping Fu   +10 more
wiley   +1 more source

Compressive Earth Observatory: An Insight from AIRS/AMSU Retrievals [PDF]

, 2014
We demonstrate that the global fields of temperature, humidity and geopotential heights admit a nearly sparse representation in the wavelet domain, offering a viable path forward to explore new paradigms of sparsity-promoting data assimilation and ...
Ardeshir M. Ebtehaj, Beck, Bodmann, Candes, Candes, Candes, Candes, Candes, Donoho, Donoho, Du, Duarte, Ebtehaj, Ebtehaj, Efi Foufoula-Georgiou, Eldar, Entekhabi, Ferguson, Foufoula-Georgiou, Freitag, Gilad Lerman, Hou, Kim, Krahmer, Le Marshall, Lustig, Mallat, Mallat, Nadarajah, Nason, Pagano, Rafael L. Bras, Rauhut, Reale, Reale, Reale, Susskind, Susskind, Tian, Wu   +39 more
core   +1 more source

In Vivo CRISPR Screening Identifies the Glutamate Receptor GRIA2 as Promoting Peritoneal Metastasis of Gastric Cancer via Calcium‐Dependent β‐Catenin Activation

Advanced Science, EarlyView.
We identified GRIA2 as a critical driver of gastric cancer peritoneal metastasis through in vivo CRISPR screening. Mechanistically, GRIA2‐mediated calcium influx inhibits GSK3β and activates Wnt/β‐catenin signaling, driven by glutamate from cancer‐associated fibroblasts.
Jie Sun, Xu Yang, Wenchao Jiang, Chengbo Ji, Yingying Wu, Haoyu Sun, Xinyou Liu, Masami Yamamoto, Tetsuya Tsukamoto, Sachiyo Nomura, Junjie Zhao, Yuanyuan Ruan, Haojie Li, Xuefei Wang   +13 more
wiley   +1 more source

Laser Application and Sparse Imaging Analysis of Diffractive Optical System

Leida xuebao, 2020
In recent years, the diffractive optical systems have developed rapidly. Diffractive devices such as binary optical device and membrane-based lens are equivalent to fixed phase shifters of microwave antennas.
LI Daojing, ZHU Yu, HU Xuan, YU Haifeng, ZHOU Kai, ZHANG Running, LIU Lei   +6 more
doaj   +1 more source

MKID development for SuperSpec: an on-chip, mm-wave, filter-bank spectrometer [PDF]

, 2012
SuperSpec is an ultra-compact spectrometer-on-a-chip for millimeter and submillimeter wavelength astronomy. Its very small size, wide spectral bandwidth, and highly multiplexed readout will enable construction of powerful multibeam spectrometers for high-
Barry, Peter S., Bradford, Charles M., Chattopadhyay, Goutam, Day, Peter, Doyle, Simon, Hailey-Dunsheath, Steve, Hollister, Matthew I., Kovács, Attila, Leduc, Henry G., Llombart, Nuria, Marrone, Daniel P., Mauskopf, Philip, McKenney, Christopher, O'Brient, Roger, Padin, Stephen, Reck, Theodore, Shirokoff, Erik, Swenson, Loren J., Zmuidzinas, Jonas   +18 more
core   +2 more sources

Multimodal Super‐Resolution Imaging of Nitrogen‐Vacancy Centers via High‐Index‐Induced Structured Illumination Microscopy and Optically Detected Magnetic Resonance Spectrometry

Advanced Science, EarlyView.
This work demonstrates a multimodal super‐resolution imaging technique for nitrogen‐vacancy centers by integrating high‐index‐induced structured illumination with optically detected magnetic resonance. By utilizing diamond's high refractive index, the method achieves sub‐100‐nm spatial resolution and enhanced localization. This dual‐modulation strategy
Kyu Ri Choi, Mohammed Zia Jalaludeen, Samuel Begumya, Yan Qiu Du, Dong Hee Park, Bin Chan Joo, Jae Hwan Yoo, Síle Nic Chormaic, Shilong Li, Yeon Ui Lee   +9 more
wiley   +1 more source