Results 1 to 10 of about 15,548 (70)
Observation of the Rotational Doppler Effect With Structured Beams in Atomic Vapor
Frontiers in Physics, 2022 A vector beam with the spatial variation polarization has attracted keen interest and is progressively applied in quantum information, quantum communication, precision measurement, and so on.
Shuwei Qiu +6 more
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Non-Reciprocal MEMS Periodic Structure
Actuators, 2023 In recent years, active periodic structures with in-time modulated parameters have drawn ever-increasing attention due to their peculiar (and sometimes exotic) wave propagation properties.
Jacopo Marconi +2 more
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Quasi‐Static and Time‐Modulated Optical Phased Arrays: Beamforming Analysis and Comparative Study
Advanced Photonics Research, 2021 Herein, design procedures of the quasi‐static and time‐modulated optical phased arrays (OPAs) operating at near‐infrared spectrum are proposed and a comparative analysis over their dynamic beam‐steering functionalities is conducted.
Raana Sabri +2 more
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Nutrient-mediated modulation of flowering time
Frontiers in Plant Science, 2023 Nutrition affects plant growth and development, including flowering. Flowering represents the transition from the vegetative period to the reproduction period and requires the consumption of nutrients.
Yuhang Zhang +3 more
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New Journal of Physics, 2023 We provide a theoretical framework to mold time-modulated mechanical metamaterials with frequency conversion and wave-steering capabilities. To illustrate the concept, we initially focus on 1D lattices, whereby a sufficiently slow time-modulation of the ...
Jonatha Santini, Emanuele Riva
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Studying the Performance of Different Approaches for PRVs Setting and improving reliability in Water Distribution Networks [PDF]
علوم و مهندسی آب و فاضلاب, 2017 High pressure in water distribution networks leads to various problems such as increased leakage, bursts and unexpected consumptions. Hence, pressure management plans are implemented using pressure reducing valves (PRVs), tanks and pump stations. In this
Mohammad Amin Gheibi +2 more
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Space–time line coded spatial modulation
Electronics Letters, 2022 In this letter, a novel multiple‐input multiple‐output transceiver technique, named space–time line coded spatial modulation (STLC‐SM) is proposed, where two modulation symbols are transmitted through one of the multiple transmit antennas determined by ...
Ki‐Hun Lee +2 more
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Differential space time media‐based modulation system
IET Communications, 2022 Differential spatial modulation (DSM) is a multi‐antenna differential technology with low power consumption and no demand of channel estimation. It is suitable for communication systems that have fast migration velocity and high requirements for both ...
Hongliang Zou +3 more
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IEEE Access, 2019 This paper applies time modulation to deal with the design of dual-band antenna arrays in a circular geometry using a micro-strip-fed slot antenna as an element in the frequencies of 2.4 and 5.5 GHz.
Zenon Medina +3 more
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Reversible modulation of circadian time with chronophotopharmacology
Nature Communications, 2021 The circadian clock is an internal mechanism that controls various physiological processes, such as the sleep-wake cycle, but its precise regulation is challenging.
Dušan Kolarski +11 more
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