Results 91 to 100 of about 14,909 (237)
Trajectory Deviation Estimation Method for UAV-Borne Through-Wall Radar
Remote SensingMini–unmanned aerial vehicles (mini-UAVs) are emerging as a promising platform for through-wall radar to sense the enclosed space in cities, especially high-rise buildings, due to their excellent maneuverability. However, due to unavoidable environmental
Luying Chen +4 more
doaj +1 more source
SAR-Based Vibration Estimation Using the Discrete Fractional Fourier Transform [PDF]
, 2012 A vibration estimation method for synthetic aperture radar (SAR) is presented based on a novel application of the discrete fractional Fourier transform (DFRFT).
Atwood, Tom +8 more
core +1 more source
The technical and practical implementation of fundus photography in equids
Equine Veterinary Education, EarlyView.Summary Background Fundus photography is an important diagnostic tool in human and veterinary medicine. Advances in research are increasing its accessibility in human medicine. However, there is a lack of studies on modern fundus photography in animals, particularly in horses. Objectives To assess the use of a portable fundus camera developed for human
I. Vierling, B. Wollanke, V. Franzen
wiley +1 more source
Journal of Microscopy, EarlyView.Abstract Conventional optical microscopy imaging of obligate intracellular bacteria is hampered by the small size of bacterial cells, tight clustering exhibited by some bacterial species and challenges relating to labelling such as background from host cells, a lack of validated reagents, and a lack of tools for genetic manipulation.
Alison J. North +7 more
wiley +1 more source
A Hybrid Motion Compensation Scheme for THz-SAR with Composite Modulated Waveform
Remote SensingTerahertz Synthetic Aperture Radar (THz-SAR) is highly sensitive to platform vibrations and trajectory deviations, which introduce severe phase errors and limited resolution.
Chongzheng Wu +3 more
doaj +1 more source
FieldDino: Rapid In‐Field Stomatal Anatomy and Physiology Phenotyping
Plant, Cell &Environment, EarlyView.ABSTRACT Stomatal anatomy and physiology define CO2 availability for photosynthesis and regulate plant water use. Despite being key drivers of yield and dynamic responsiveness to abiotic stresses, conventional measurement techniques of stomatal traits are laborious and slow, limiting adoption in plant breeding.
Edward Chaplin +3 more
wiley +1 more source
Journal of Biomedical Materials Research Part A, Volume 114, Issue 2, February 2026.ABSTRACT The endometrium, the mucosal lining of the uterus, is a highly regenerative tissue that undergoes cyclic remodeling guided by tightly regulated levels of estrogen and progesterone. Stromal cells, including fibroblasts, are embedded within the connective tissue of the endometrium and contribute to the rapidly changing extracellular matrix (ECM).
Grace K. Hinds +5 more
wiley +1 more source
Closed-Loop Autofocus Scheme for Scanning Electron Microscope
MATEC Web of Conferences, 2015 In this paper, we present a full scale autofocus approach for scanning electron microscope (SEM). The optimal focus (in-focus) position of the microscope is achieved by maximizing the image sharpness using a vision-based closed-loop control scheme.
Cui Le +4 more
doaj +1 more source
Robust Two-Dimensional Spatial-Variant Map-Drift Algorithm for UAV SAR Autofocusing
Remote Sensing, 2019 Autofocus has attracted wide attention for unmanned aerial vehicle (UAV) synthetic aperture radar (SAR) systems, because autofocus process is crucial and difficult when the phase error is spatially dependent on both range and azimuth directions.
Guanyong Wang +4 more
doaj +1 more source