Results 81 to 90 of about 14,460 (241)

Deception jamming method based on micro‐Doppler effect for vehicle target

open access: yesIET Radar, Sonar & Navigation, 2016
Ground moving target is the main concern for ground surveillance radar. To protect the manoeuvring target from being detected by radar, some jamming technologies are utilised. In this study, a novel method of deception jamming for vehicle target against continuous wave ground surveillance radar is proposed. Traditional jamming method only considers the
Xiao‐ran Shi   +4 more
openaire   +1 more source

Modeling rainfall drop size distribution moments using an S‐band polarimetric radar in complex terrain

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Using S‐band dual‐polarization radar and disdrometers during PRECIP 2022 in Taiwan, we analyze a Mei‐Yu frontal event with widespread stratiform rain and embedded convection. Multiple disdrometers are used to create a novel drop size distribution model for S‐band radars resolving both the drizzle and precipitation modes. The model reveals both inferred
Ian C. Cornejo   +3 more
wiley   +1 more source

Moving target detection based on velocity compensation methods in a coherent continuous wave lidar

open access: yesThe Journal of Engineering, 2019
Light Detection and Ranging (lidar) technology has been applied in military and civil areas and shows great potential. However, in coherent lidar detection, significant Doppler Effect and velocity uncertainty result a bad influence on moving target ...
Huixin Huang   +3 more
doaj   +1 more source

Small‐Scale Magnetic Soft Robots for Medical Applications: From Laboratory to Clinical Use

open access: yesSmartBot, EarlyView.
Small‐scale magnetic soft robots are emerging as promising platforms for minimally invasive diagnosis and therapy in complex in vivo environments. This review compares untethered and tethered medical magnetic robots in parallel across five translational stages, from basic performance testing to clinical evaluation.
Xingxing Ke   +29 more
wiley   +1 more source

Endocytosis‐independent cytosolic entry of messenger RNA via fluorous bilayer zippering attenuating Toll‐like receptor signaling and enables ischemic tissue salvage

open access: yesSmart Molecules, EarlyView.
The present study establishes a paradigm shift in synthetic mRNA delivery through the convergence of three orthogonal chemistries—perfluoro‐acylation, bio‐orthogonal click cross‐linking, and disulfide reduction—within a single, modular polymer architecture. Abstract A fundamental constraint of conventional messenger RNA (mRNA) delivery systems is their
Yue Wang   +8 more
wiley   +1 more source

Characterization of Nonmetallic Inclusions in Ce‐Containing Steels at the Submicroscopic Level

open access: yessteel research international, EarlyView.
Accurate detection of nonmetallic inclusions (NMIs) is crucial for ensuring high standards in steel cleanness and properties. Optimized automated SEM/EDS measurements are required for evaluating Ce‐containing NMIs. This study enhances the characterization of submicroscopic NMI in Ce‐alloyed ultralow‐carbon, high‐manganese, and electrical steels ...
Kathrin Thiele, Robert Musi
wiley   +1 more source

Evaluation of systemic consequences of brachycephalic obstructive airway syndrome in dogs

open access: yesVeterinary Record, EarlyView.
Abstract Background Brachycephalic obstructive airway syndrome (BOAS) results from upper airway anatomical abnormalities and may cause systemic effects depending on severity. Methods A prospective, case‒control and observational study was conducted.
Andréia Coutinho Facin   +11 more
wiley   +1 more source

A Retrospective Study of Two Mandibulectomy Approaches for T3‐Stage Lower Gingival Carcinoma

open access: yesWorld Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Objective This study retrospectively analyzes two mandibular resection techniques for T3‐stage lower gingival carcinoma, aiming to compare their impact on patient prognosis. Methods Retrospective cohort study. Data from 78 cases of T3‐stage lower gingival carcinoma involving the mandible were reviewed in our Department of Head and Neck Surgery.
Hang Ling   +6 more
wiley   +1 more source

A high‐energy X‐ray beamline for materials science research at SPring‐8: BL15XU

open access: yesJournal of Synchrotron Radiation, EarlyView.
The Japanese synchrotron facility SPring‐8 has recently relaunched BL15XU as a high‐energy X‐ray beamline for materials science research. A comprehensive description of the technical details and science cases is presented.The high‐energy X‐ray beamline BL15XU is designed to drive advancements in materials science and high‐pressure research by ...
Hiroyuki Ohsumi   +17 more
wiley   +1 more source

Photoacoustics meets ultrasound: micro-Doppler photoacoustic effect and detection by ultrasound

open access: yes, 2014
In recent years, photoacoustics has attracted intensive research for both anatomical and functional biomedical imaging. However, the physical interaction between photoacoustic generated endogenous waves and an exogenous ultrasound wave is a largely unexplored area.
Gao, Fei   +3 more
openaire   +2 more sources

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