Results 121 to 130 of about 40,475 (306)
Surface-plasmon excitation of second-harmonic light: Emission and absorption
, 2017 We aim to clarify the role that absorption plays in nonlinear optical processes in a variety of metallic nanostructures, and show how it relates to emission and conversion efficiency.
DE ANGELIS, COSTANTINO +1 more
core +2 more sources
Ultrasound harmonic imaging using chirp coded excitation
, 2010 Medical ultrasound imaging with the nonlinear second harmonic component (SHC) provides improved spatial resolution and reduced reverberation artifacts.
Arif, Muhammad
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Advanced Materials, EarlyView.We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena +6 more
wiley +1 more source
Tissue Harmonic Imaging with Coded Excitation
, 2011 It becomes more important to obtain medical ultrasound images with higher signal-to-noise ratio (SNR) and higher spatial resolution. In the last decade, tissue harmonic imaging (THI) and coded excitation to medical ultrasound imaging have been investigated.
Masayuki Tanabe +3 more
openaire +2 more sources
Excited Sessile Drops Dance Harmonically
, 2013 In our fluid dynamics video, we demonstrate our method of visualizing and identifying various mode shapes of mechanically oscillated sessile drops. By placing metal mesh under an oscillating drop and projecting light from below, the drop's shape is visualized by the visually deformed mesh pattern seen in the top view.
Chang, Chun-Ti +2 more
openaire +2 more sources
The influence of various excitation mechanisms on ground vibration from trains
, 2012 Ground vibration from trains is an increasingly important environmental problem. This study investigates the various excitation mechanisms of ground vibration.
Triepaischajonsak, Nuthnapa
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Advanced Materials, EarlyView.ABSTRACT Microneedle arrays (MNAs) is a rapidly emerging technology with broad biomedical applications in drug delivery and biosensing. With sub‐millimeter dimensions and periodicity, MNAs possess geometries nearly ideal for biomedical devices operating within the terahertz (THz) spectral window.
Sang Hyun Lee +6 more
wiley +1 more source
Advanced Materials, EarlyView.The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj +8 more
wiley +1 more source
Earth and Planetary PhysicsThis paper establishes an amplitude modulation heating model, simulating the far-field radiation of ELF/VLF signals generated by modulation heating, as well as the specific location and longitudinal extent of the radiation source.
ZhiJian Lu +8 more
doaj +1 more source
A Hybrid Coder Based On A New Phase Model For Synchronization
, 2007 This paper presents a hybrid coder with a new phase model to synchronize harmonic and waveform coded segments, with a target bit rate of 4 kbps. The coder also employs a new technique based on analysis by synthesis to distinguish between stationary and ...
Nilantha Katugampala +2 more
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