Results 31 to 40 of about 172,332 (339)
Multichannel photometer-nephelometer [PDF]
Applied and Environmental Microbiology, 1980 We describe an instrument for monitoring either transmitted or scattered light intensity, or both, simultaneously on up to eight channels. The use of a laser light source (at 632.8-nm wavelength) provides high accuracy and dynamic range: optical density can be measured from 0.0004 up to 6, and a scattered light fraction down to 10(-6) can be resolved ...
F, Keilmann, D, Böhme, L, Santo
openaire +2 more sources
IEEE Access, 2018 The deployment of small cells (SCs) in heterogeneous cellular networks (HCNs) has been shown to be a promising approach to increase the system capacities of wireless communications.
Hong Wang, Shu-Hung Leung, Rongfang Song
doaj +1 more source
Spatial-Light-Modulator-Based Multichannel Data Transmission by Vortex Beams of Various Orders
Italian National Conference on Sensors, 2021 We report an atmospheric multichannel data transmission system with channel separation by vortex beams of various orders, including half-integer values. For the demultiplexing of the communication channels, a multichannel diffractive optical element (DOE)
S. Khonina, S. Karpeev, M. A. Butt
semanticscholar +1 more source
Multichannel Modified Covariance Estimator of a Single-Tone Frequency
Cybernetics and Information Technologies, 2015 The multichannel modified covariance estimator of a single-tone signal frequency is synthesized by using the maximum likelihood method. It is shown that this estimator has an advantage over the estimator averaged by multiple conventional single-channel ...
Chyrka I. D., Omelchuk I. P.
doaj +1 more source
Open Source Sensor Interface for Soft Detectors in Surgical Simulators
IEEE Access, 2023 Surgical simulation is an emerging area of research and development, making new developments of especially hybrid simulators highly relevant. In this context, soft sensors enable low-cost position or force detection in haptically realistic synthetic ...
Thomas Thurner +3 more
doaj +1 more source
Polarization multiplexing multichannel high-Q terahertz sensing system
Frontiers in Nanotechnology, 2023 Terahertz functional devices with high-Q factor play an important role in spectral sensing, security imaging, and wireless communication. The reported terahertz devices based on the electromagnetic induction transparency (EIT) effect cannot meet the ...
Xiuyu Wang +10 more
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Multichannel Fluorescence Microscopy: Advantages of Going beyond a Single Emission
Advanced NanoBiomed Research, 2022 Fluorescent microscopy has enabled the study of intracellular processes and revealed the most intricate details of the subcellular structure. This has benefitted not only the basic biological science, but also has had an impact in numerous biomedical ...
Paloma Rodríguez-Sevilla +2 more
doaj +1 more source
Sparse Multichannel Blind Deconvolution of Seismic Data via Spectral Projected-Gradient
IEEE Access, 2019 In this paper, an efficient numerical scheme is presented for seismic blind deconvolution in a multichannel scenario. The proposed method iterate with two steps: first, wavelet estimation across all channels and second, refinement of the reflectivity ...
Naveed Iqbal +3 more
doaj +1 more source
High-Resolution Multi-Channel Frequency Standard Comparator Using Digital Frequency Measurement
Sensors, 2021 The rapid improvement accuracy of the atomic frequency standard puts forward higher requirements for the measurement resolution of the atomic frequency standard comparison system.
Bo Xiao +4 more
doaj +1 more source
Systems, 2023 Online consumers are increasingly looking for more convenient ways to purchase products and services, and chatbots are becoming increasingly popular in multichannel environments due to their ability to provide an efficient service.
Ionica Oncioiu
doaj +1 more source