Results 91 to 100 of about 611,651 (272)
Frontiers in Bioengineering and BiotechnologyObjectiveThe open-ended coaxial probe (OECP) method has demonstrated promising potential in biological tissue measurements. However, it still faces challenges such as significant measurement errors and poor repeatability.
Shuai Chen +6 more
doaj +1 more source
Measurement of the dielectric constant in a microwave near field
The Journal of Engineering, 2019 This study describes a method based on the measurement of a reflection coefficient to determine the dielectric constant of a sample by near-field microwave. A mathematical relation between the reflection coefficient and the parameters of a lumped circuit
Zhaoqi Zhong +3 more
doaj +1 more source
Longitudinal Morphomolecular Monitoring of Head and Neck Carcinogenesis
Advanced Science, EarlyView.A miniaturized endoscopic probe that integrates Raman spectroscopy and optical coherence tomography, enabling simultaneous molecular and structural imaging of living tissue, was developed. Applied longitudinally in a mouse model of head and neck cancer, the system tracks disease progression from precancerous lesions to invasive cancer.
Jianrong Qiu +7 more
wiley +1 more source
Gain and Radiation Pattern Enhancement of the H-Plane Horn Antenna Using a Tapered Dielectric Lens
IEEE Access, 2019 The design of a high-gain and low-profile H-plane horn antenna embedded into a large metallic platform is proposed. The antenna is composed of three parts: coaxial-to-ridged transition, wideband H-plane antenna, and dielectric lens. The coaxial-to-ridged
Ping Wang, Qi Wu, Rong-Bu He, Wei Luo
doaj +1 more source
Dielectric Characterization of Healthy Human Teeth from 0.5 to 18 GHz with an Open-Ended Coaxial Probe. [PDF]
Sensors (Basel), 2023 Berezhanska M +3 more
europepmc +1 more source
Advanced Science, EarlyView.Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu +10 more
wiley +1 more source
Dielectric Permittivity Measurement Using Open-Ended Coaxial Probe-Modeling and Simulation Based on the Simple Capacitive-Load Model. [PDF]
Sensors (Basel), 2022 Šarolić A, Matković A.
europepmc +1 more source
Differential Tissue‐Coupled Powering for Battery‐Free Injectable Electroceuticals
Advanced Science, EarlyView.A thread‐like injectable neural stimulator is powered through differential tissue‐coupled powering (DTCP), which harvests RF‐frequency tissue potentials with an elongated receiver while preserving a injectable cross‐section. The system integrates an ASIC, stimulation electrodes, and a portable transmitter, enabling wireless peripheral nerve stimulation,
Han Wu +13 more
wiley +1 more source
Semi-empirical methods for coaxial jet noise prediction
, 2008 This work is describes and compare the implementation and exploitation of themost common semi-empirical methods for dual-stream (coaxial) jet noise prediction.Six different methods available in the literature were numerically implemented andvalidated ...
de Almeida, Odenir
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Revista Ambiente & Água, 2009 Time Domain Reflectometry (TDR) is a reliable technique to estimate in situ moisture content in different types of materials using probes. The forest seedlings production implies in a comprehensive and empirical process of water management applied to the
Lucas Masayuki Sato +3 more
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