Results 11 to 20 of about 1,186,002 (309)

Peal factor of signals of 5G mobile service systems

open access: yesDoklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 2020
This article discusses the possible formats of signals of 5G mobile communication networks (NR, IMT-2020): configurations of the number of resource blocks and frequency shifts of subcarriers.
V. M. Kozel   +2 more
doaj   +1 more source

Genetically Encoded Ratiometric pH Sensors for the Measurement of Intra- and Extracellular pH and Internalization Rates

open access: yesBiosensors, 2022
pH-sensitive fluorescent proteins as genetically encoded pH sensors are promising tools for monitoring intra- and extracellular pH. However, there is a lack of ratiometric pH sensors, which offer a good dynamic range and can be purified and applied ...
Lennard Karsten   +6 more
doaj   +1 more source

Design of a CMOS Image Sensor with Bi-Directional Gamma-Corrected Digital-Correlated Double Sampling

open access: yesSensors, 2023
We present a 640 × 480 CMOS image sensor (CIS) with in-circuit bi-directional gamma correction with a proposed digital-correlated double sampling (CDS) structure.
Jaehee Cho   +5 more
doaj   +1 more source

DFT Spread-Optical Pulse Amplitude Modulation for Visible Light Communication Systems

open access: yesIEEE Access, 2022
DC-biased optical orthogonal frequency division multiplexing (DCO-OFDM) has been proposed in visible light communication (VLC) to overcome the limited modulation bandwidth of light emitting diode (LED).
Osama Saied   +2 more
doaj   +1 more source

CMOS Image Sensors in Surveillance System Applications

open access: yesSensors, 2021
Recent technology advances in CMOS image sensors (CIS) enable their utilization in the most demanding of surveillance fields, especially visual surveillance and intrusion detection in intelligent surveillance systems, aerial surveillance in war zones ...
Susrutha Babu Sukhavasi   +4 more
doaj   +1 more source

Fast-Settling Two-Stage Automatic Gain Control for Multi-Service Fibre-Wireless Fronthaul Systems

open access: yesIEEE Access, 2020
With the development of fast digitiser and digital signal processing techniques, wide-band digital radio-over-fiber (DRoF) based wireless fronthaul systems have been extensively studied as a way of offering multi-service wireless coverage.
Wen Li   +5 more
doaj   +1 more source

Design of ER damper for recoil length minimization: A case study on gun recoil system

open access: yesJournal of the Mechanical Behavior of Materials, 2022
Recoil length minimization is always been a top concern in various structural, industrial, and defence applications. The traditional passive recoil system is not able to respond quickly to the changes in the impact force.
Phan Nguyen Huu   +6 more
doaj   +1 more source

Investigation of the possibility to compensate for the blooming effect in CCD optical spectral sensors

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2019
The multipixel semiconductor light sensors are becoming more and more popular in the spectroscopy practice. But insufficient for the spectroscopy dynamic range and nonlinearity of such sensors are well known.
Anatolii Yegorov   +3 more
doaj   +1 more source

A Scheme for Long-distance High-resolution Detection of Fiber Link

open access: yesGuangtongxin yanjiu, 2021
Aiming at the problem of low spatial resolution of Optical Time Domain Reflectometer (OTDR) in long distance optical fiber link detection, this paper proposes a new scheme of Linear Frequency Modulation (LFM) -Golay OTDR.
Chen LIU   +4 more
doaj   +1 more source

Time-Periodic Inertial Range Dynamics [PDF]

open access: yesPhysical Review Letters, 2019
We present an unstable periodic orbit in large eddy simulation of an incompressible fluid in a periodic box subject to a constant body force. The width of the inertial range of spatial scales, on which this simulation models high-Reynolds-number turbulence, is about three quarters of a decade, and a significant $-5/3$ scaling range is observed.
van Veen, Lennaert   +2 more
openaire   +3 more sources

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