Results 81 to 90 of about 4,975,159 (294)
Passive Metasurface Tweezers for Multi‐Scale Orbital Transport and Trapping on Elastic Plates
Advanced Science, EarlyView.Passive labyrinthine phase encoding converts single‐channel excitation into localized flexural‐wave vortices with programmable orbital angular momentum. The resulting vortex fields enable cross‐scale particle manipulation, including orbital transport, central confinement, and rotational actuation.
Zeyang Bi +7 more
wiley +1 more source
Role of color doppler in scrotal lesions
Indian Journal of Radiology and Imaging, 2009 Color Doppler USG of the scrotum has been demonstrated to be useful in the diagnosis of scrotal lesions. Gray-scale USG characterizes the lesions as testicular or extratesticular and, with color Doppler and power Doppler, flow and perfusion can also be ...
Bhardwaj Patiala
doaj +1 more source
High‐Temperature Magnetic Field Mapping Using a Single‐Crystal Diamond MEMS Resonator Array
Advanced Science, EarlyView.A single‐crystal diamond MEMS resonator array enables magnetic‐field reconstruction with millisecond response, nanotesla level magnetic noise, and stable operation up to 573 K. Two‐ and three‐dimensional magnetic field mapping are demonstrated using ΔEeffect sensing, highlighting the potential of diamond MEMS technology for hightemperature magnetic ...
Zilong Zhang +4 more
wiley +1 more source
Middle East Fertility Society Journal, 2015 Objective: To evaluate the effects of laparoscopic ovarian drilling (LOD) on three-dimensional (3D) power Doppler indices of ovarian stromal blood flow and serum vascular endothelial growth factor (VEGF) levels in women with polycystic ovary syndrome ...
Mohammed T. Gad Al-Rab +3 more
doaj +1 more source
Advanced Science, EarlyView.Awake longitudinal multimodal ultrasound imaging integrates functional ultrasound (fUS), ultrasound localization microscopy (ULM), and functional ULM (fULM) to characterize cerebrovascular function, microvascular architecture, and flow dynamics within the same animals over time.
Zhe Huang +9 more
wiley +1 more source
Taiwanese Journal of Obstetrics & Gynecology, 2018 Objective: Fetuses with fetal growth restrictions have higher perinatal mortality rates than fetuses without fetal growth restrictions. Vascularization of the fetal kidney is crucial to fetal growth.
Pei-Yin Tsai, Chiung-Hsin Chang
doaj +1 more source
Usefulness of Doppler sonography in aesthetic medicine
Journal of Ultrasonography, 2020 Introduction: In recent years, ultrasonography has been used in an increasing number of fields, such as dermatology, aesthetic medicine and cosmetology.
Jaguś Dominika +4 more
doaj +1 more source
Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems
Advanced Electronic Materials, EarlyView.Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang +9 more
wiley +1 more source
Impact of Rapid Thermal Annealing on the Structural and Piezoelectric Properties of AlN Thin Films
Advanced Electronic Materials, EarlyView.Aluminum nitride (AlN) is a biocompatible piezoelectric material suitable for energy harvesting in MEMS resonators. Through rapid thermal annealing, a threshold for CMOS‐compatible processes is established. AlN improved its crystallinity and enhanced the piezoelectric coefficient by ∼160%. Devices show an improvement in the electromechanical properties
Laura Mazón‐Maldonado +7 more
wiley +1 more source
The development of an ultrasonic Doppler bed-load velocimeter [PDF]
, 1989 Includes bibliography.A instrument has been developed for measuring the velocity of solid particles adjacent to the pipe wall in a solids-liquid pipeline.
Lazarus, Mark Doron
core +1 more source