Results 11 to 20 of about 208,891 (348)

Metallic Coaxial Nanolasers [PDF]

open access: yesAdvances in Physics: X, 2016
The last two decades have witnessed tremendous advancements in the area of nanophotonics and plasmonics. Undoubtedly, the introduction of metallic structures has opened a path towards light confinement and manipulation at the subwavelength scale { a ...
Fainman, 1 Yeshaiahu   +4 more
core   +3 more sources

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

Modeling of the Metal Powder Flow with Carrier Gas in Coaxial Nozzle for Direct Laser Deposition Process [PDF]

open access: green, 2004
In direct laser deposition process, metal powder is directly fed with carrier gas through the coaxial nozzle into the melt pool created by the laser to form the solid parts. Many operational parameters of the process depend on the characteristic of the
Liou, Frank, Pan, Heng
core   +3 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

Coaxial waveguide MRI [PDF]

open access: yesMagnetic Resonance in Medicine, 2011
AbstractAs ultrahigh‐field MR imaging systems suffer from the standing wave problems of conventional coil designs, the use of antenna systems that generate travelling waves was suggested. As a modification to the original approach, we propose the use of a coaxial waveguide configuration with interrupted inner conductor.
Alt, Stefan   +6 more
openaire   +3 more sources

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