Results 51 to 60 of about 8,015 (302)

Anti-jamming of Inverse Synthetic Aperture Radar based on Slope-varying Linear Frequency Modulation Signal [PDF]

, 2009
Deceptive jamming technology against inverse synthetic aperture radar is matured now, which is meaningful in military application. But the research on anti-jamming technology for inverse synthetic aperture radar (ISAR) is still not a mature technology ...
Hongqiang, Wang, Liang, Wu, Xiang, Li, Yupeng, Zhu   +3 more
core   +2 more sources

Direct Ink Writing of Conductive Hydrogels

Advanced Functional Materials, EarlyView.
This review examines the use of direct ink writing (DIW) for fabricating conductive hydrogels with customizable 3D structures. It outlines the rheological requirements for successful DIW, followed by an exploration of the materials and ink formulations used to impart electronic and/or ionic conductivity to hydrogels while maintaining printability ...
Monica Ho, Aline Braz Ramirez, Negar Akbarnia, Eric Croiset, Elisabeth Prince, Gerald G. Fuller, Milad Kamkar   +6 more
wiley   +1 more source

Randomized Differential DSSS: Jamming-Resistant Wireless Broadcast Communication [PDF]

, 2010
—Jamming resistance is crucial for applications where reliable wireless communication is required. Spread spectrum techniques such as Frequency Hopping Spread Spectrum (FHSS) and Direct Sequence Spread Spectrum (DSSS) have been used as countermeasures ...
An Liu, Huaiyu Dai, Peng Ning, Yao Liu
core   +2 more sources

Disulfide Glass: An Optical Polymer for Commodity Plastics, Precision Optics, and Photonics

Advanced Functional Materials, EarlyView.
From oil and glass refining to high performance commodity polymers with enhanced thermomechanical and optical properties—the synthesis of a new high refractive index, highly transparent optical thermoset polymer is reported, termed, disulfide glass that affords a robust optical glass amenable to fabrication of precision optics and thin film photonic ...
Jake Molineux, Sam W. Durfee, Ramses Hyde, Matthew C. Malaker, Jacob P. Narr, Kyung‐Jo Kim, Roland Himmelhuber, Young‐Jae Kim, Min‐Gap Bog, Byeongjoon Jeong, Woongbi Cho, Jeong Jae Wie, Nithiyaa Bala Krishnan, Yi Yan Yang, Robert A. Norwood, Jeffrey Pyun   +15 more
wiley   +1 more source

Immediate hypersensitivity reaction to carboxymethylcellulose in lidocaine jelly and dimethicone drops: A case report and mini‐review

Journal of Cutaneous Immunology and Allergy, Volume 5, Issue 6, Page 217-221, December 2022., 2022
Carboxymethylcellulose (CMC, carmellose sodium) is an anionic water‐soluble polymer derived from native cellulose that is used as an excipient. Here, we report a case of urticaria caused by the CMC in lidocaine jelly and dimethicone drops. Abstract Excipient allergies are rare and difficult to diagnose.
Eri Hotta, Risa Tamagawa‐Mineoka, Yuri Onishi, Ayaka Sotozono, Megumi Kusunoki, Junko Hattori, Natsue Ioka, Hiromi Mizutani, Koji Masuda, Norito Katoh   +9 more
wiley   +1 more source

Channel-space endogenous anti-jamming method based on multi-reconfigurable intelligent surface

Tongxin xuebao, 2023
In view of the concern that the traditional anti-jamming method based on jamming recognition is challenging to defend against both the unknown and the intelligent jamming attacks, a dynamic, heterogeneous, and redundant channel-space anti-jamming ...
Yonggang ZHU, Yifu SUN, Fuqiang YAO, Cheng LI, Wenlong GUO, Kang AN   +5 more
doaj   +2 more sources

Study on the Jamming-Position Maneuver Algorithm of Off-Board Active Electronic Countermeasure Unmanned Surface Vehicles

IEEE Access, 2021
The existing off-board active decoys face such common technical problems as short action time, limited jamming power, and difficult control over deployment situation and effective directive jamming beam direction. For this reason, this paper introduces a
Yasong Luo, Chengxu Feng, Qingtao Xia, Xiaoling Ning   +3 more
doaj   +1 more source

The Role of Fluorine‐Functionalized Organic Spacers for Defect Passivation and Low‐Dimensional Phase Formation in 3D MAPI Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
Fluorine‐functionalized organic spacers (2F, 3F, 5F) are investigated to identify as optimal passivation agents for 3D MAPI perovskite solar cells (PSCs). The study highlights how altering fluorine positioning affects defect passivation, low‐dimensional phase (LDP) formation, and stability, emphasizing its role in molecular interactions and offering ...
Ali Semerci, Javier Urieta‐Mora, Sander Driessen, Ali Buyruk, Rik Hooijer, Agustín Molina‐Ontoria, Bülent Alkan, Seckin Akin, Mattia Fanetti, Harishankar Balakrishnan, Achim Hartschuh, Shuxia Tao, Nazario Martín, Peter Müller‐Buschbaum, Saim Emin, Tayebeh Ameri   +15 more
wiley   +1 more source

SAR Image Active Jamming Type Recognition Based on Deep CNN Model

Leida xuebao, 2022
Synthetic Aperture Radar (SAR) can acquire high-resolution radar images of region of interest under all-day and all-weather conditions, a capability that has been successfully applied in many fields.
Siwei CHEN, Xingchao CUI, Mingdian LI, Chensong TAO, Haoliang LI   +4 more
doaj   +1 more source

Roulette‐Inspired Physical Unclonable Functions: Stochastic yet Deterministic Multi‐Bit Patterning through the Solutal Marangoni Effect

Advanced Functional Materials, EarlyView.
Geometric multi‐bit patterning based on dynamic wetting and dewetting phenomena creates roulette‐like Physical Unclonable Function (PUF) labels with stochastic yet deterministic properties. This method leverages the solutal‐Marangoni effect for high randomness while achieving deterministic multinary patterns through polygonal confinement of binary ...
Yeongin Cho, Jeongsu Pyeon, Hanhwi Jang, Gwangsik Mun, Jaimin Kang, Byong‐Guk Park, Geon Yeong Kim, Hyoungsoo Kim, Yeon Sik Jung   +8 more
wiley   +1 more source