Results 1 to 10 of about 513,874 (269)

Analysis of the accuracy of the signal processing algorithm of the differential phase polarimeter [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2023
The purpose of this work is to analyze the effect of the polarimeter signal processing algorithm on the results of measurements of the optical rotation angle of the polarization plane to improve the accuracy of measurements in differential polarimetry ...
Vishnyakov, Gennady Николаевич   +3 more
doaj   +1 more source

Optical Measurements [PDF]

open access: yesIEEE Instrumentation & Measurement Magazine, 2021
Optical sensing techniques are used in a large variety of application fields where fast, portable, remote-sensing, low-cost and/or rugged devices are required for detection, identification, and measurements of a variety of parameters. Sensors based on optical fibers are exploited in demanding applications, including pharmaceutical research, medical ...
Cennamo N., Jorge P. A. S.
openaire   +1 more source

Quest - a variant of laboratory work “Investigation of the axial magnetic induction of a solenoid” [PDF]

open access: yesE3S Web of Conferences, 2023
A variant of the laboratory work “Investigation of the axial magnetic induction of the solenoid” is given for the case when the solenoid is located in a separate block and its parameters are unknown.
Parfentiev N.A., Poyarkov I.V.
doaj   +1 more source

Modified prism methods for measuring the refractive index of solid and liquid substances

open access: yesКомпьютерная оптика, 2023
Methods for measuring the refractive index of optically transparent dielectric materials are considered. Modified methods based on the methods of minimum deviation and constant deviation are proposed and allow determining the refractive index of ...
A.I. Yurin, G.N. Vishnyakov, V.L. Minaev
doaj   +1 more source

Instrumental Support for Teaching Physics by the Hands of Students [PDF]

open access: yesE3S Web of Conferences, 2023
Being one of the most important tasks in the formation of natural science thinking, teaching physics often encounters difficulties due to the gap between the theoretical approach and practical experience.
Parfentyev Nicolai Andreevich   +3 more
doaj   +1 more source

Single-Layered Frequency Selective Surface for Polarization Processing by Transmission Through Elementary Simple Structure Unit Cell Array

open access: yesIEEE Access, 2021
A single metal layer, multifunctional frequency selective surface with a very simple pattern of the unit cell, containing a U-shaped metal resonator on FR4 substrate, and working in the low GHz frequency range is proposed.
Andrei-Marius Silaghi   +2 more
doaj   +1 more source

Metrological studies of the characteristics of multilayer surface coatings using synchrotron radiation

open access: yesРоссийский технологический журнал, 2021
The investigations of multilayer surface nanostructures characteristics was performed with synchrotron radiation sources, characterized by an intensive, calculated continuum. It plays an important role in nanoelectronics metrological base.
A. S. Sigov   +4 more
doaj   +1 more source

Frequency Selective Surface for Ultra-Wide Band Filtering and Shielding

open access: yesSensors, 2022
A frequency selective surface for spatial filtering in the standardized Ultra-Wide Band (UWB) frequency range is proposed. A very large stop-band of 1.75–15.44 GHz has been obtained, with good polarization insensitivity and an angular stability of more ...
Aldo De Sabata   +4 more
doaj   +1 more source

Design and Experimental Validation of a Switchable Frequency Selective Surface with Incorporated Control Network

open access: yesSensors, 2023
Tunable/switchable devices are more and more required in modern communication systems. However, the realization of the tuning requires the presence of active devices, which in turn must be biased.
Andrei-Marius Silaghi   +3 more
doaj   +1 more source

Automation and Optimization of Rat Heart Decellularization Using a Vibrating Fluid Column

open access: yesSensors, 2023
This paper presents the validation of a software application to optimize the discoloration process in simulated hearts and to automate and determine the final moment of decellularization in rat hearts using a vibrating fluid column.
Dumitru-Daniel Bonciog   +3 more
doaj   +1 more source

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