Results 1 to 10 of about 177,812 (140)

Precision distance control in ultrasound-guided coaxial needle biopsy for small liver cancer: improving safety and diagnostic accuracy yield [PDF]

open access: yesFrontiers in Oncology
ObjectiveThe diagnostic yield of percutaneous biopsy for small liver cancer is affected by lesion size and location. This study utilizes small components with a coaxial cannula to enables precise control over specimen length, aiming to evaluate the ...
Yaqi Zhang   +3 more
doaj   +2 more sources

Effects of Length and Diameter of Open-Ended Coaxial Sensor on its Reflection Coefficient [PDF]

open access: yesRadioengineering, 2012
This paper presents a calibration technique for a coaxial sensor using a transmission signal approach. The sensor was fabricated from commercially available RG402/U and RG405/U semi-rigid coaxial cable.
K. Y. You, J. Salleh, Z. Abbas
doaj   +2 more sources

Study on the Core-Shell Structure of Gas-Assisted Coaxial Electrospinning Fibers: Implications for Semiconductor Material Design [PDF]

open access: yesMicromachines
Gas-assisted coaxial electrospinning (GACES), a simple and versatile technique for the large-scale fabrication of coaxial nanofiber membranes, possesses significant industrial potential across advanced manufacturing sectors including semiconductors ...
Rongguang Zhang   +9 more
doaj   +2 more sources

An In-Line Coaxial-to-Waveguide Transition for Q-Band Single-Feed-Per-Beam Antenna Systems

open access: yesApplied Sciences, 2021
An in-line transition between a coaxial cable and rectangular waveguide operating in Q-band (33–50 GHz) is presented. The aim of the work is to minimize the modifications in the waveguide to the strictly necessary to overcome the manufacturing issues due
Marco Simone   +4 more
doaj   +1 more source

Inline Optical Coherence Tomography for Multidirectional Process Monitoring in a Coaxial LMD-w Process

open access: yesApplied Sciences, 2022
Within additive manufacturing, process stability is still an unsolved challenge. Process instabilities result from the complexity of laser deposition processes and the dependence of the quality of the workpiece on a variety of factors in the process ...
Charlotte Stehmar   +4 more
doaj   +1 more source

Particular aspects of designing longitudinal-coaxial waveguide-microstrip connectors

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2022
The authors justify the use of combined longitudinal-coaxial connectors - waveguide-coaxial or waveguide-microstrip type - in new modern antenna-feeder microwave paths.
Eduard Glushechenko
doaj   +1 more source

Characterization of a 1 mm (DC to 110 GHz) Calibration Kit for VNA [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2019
This paper presents an evaluation method for a 1 mm coaxial calibration kit that can be used from DC to 110 GHz. The analytical model for the calibration kit was revisited and verified by comparing it with the electromagnetic High-Frequency Structure ...
Chihyun Cho   +3 more
doaj   +1 more source

Measurement methods and mathematical model of main characteristics of waveguide-coaxial connectors

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2021
Modern complex microwave radio electronic systems may use functional devices implemented on different types of transmission lines. In order to connect such devices to each other to form antenna feed system, the following three types of special connectors
Eduard Glushechenko
doaj   +1 more source

Essential Oil—Loaded Nanofibers for Pharmaceutical and Biomedical Applications: A Systematic Mini-Review

open access: yesPharmaceutics, 2022
Essential oils (EOs) have been widely exploited for their biological properties (mainly as antimicrobials) in the food industry. Encapsulation of EOs has opened the way to the utilization of EOs in the pharmaceutical and biomedical fields ...
Ioannis Partheniadis   +4 more
doaj   +1 more source

Pin-Gap Correction of Coaxial Calibration Standards for TRL or LRL Calibration

open access: yesIEEE Access, 2022
In this paper, a novel method is proposed by which to correct the pin gaps of coaxial calibration standards for Thru-Reflect-Line (TRL) or Line-Reflect-Line (LRL) calibration.
Hyunji Koo   +3 more
doaj   +1 more source

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