Results 31 to 40 of about 299,236 (294)

Recent Results From the EU POF-PLUS Project: Multi-Gigabit Transmission Over 1 mm Core Diameter Plastic Optical Fibers [PDF]

, 2011
Recent activity to achieve multi-gigabit transmission over 1 mm core diameter graded-index and step-index plastic optical fibers for distances up to 50 meters is reported in this paper.
Gaudino, R., Yang, H., R. Kruglov, Tangdiongga E., Koonen A. M. J., Kruglov R., R. Gaudino, Ziemann, O., Visani, D., Greiss, I., Yang H., VISANI, DAVIDE, Loquai S., Ouzzif, M., E. Tangdiongga, O. Ziemann, Ziemann O., Tangdiongga, E., I. Greiss, Kruglov, R., C. M. Okonkwo, S. Loquai, B. Charbonnier, Kruglov, R, Loquai, S., Visani D., Tangdiongga, E.; id_orcid, M. Ouzzif, Greiss, I, Okonkwo, C.M.; id_orcid, Charbonnier, B., A. M. J. Koonen, Charbonnier, B, Charbonnier B., Okonkwo, C.M., H. Yang, Koonen, A.M.J., Greiss I., Gaudino, Roberto, D. Visani, Ouzzif M., Okonkwo C. M.   +41 more
core   +1 more source

Wind Farm Noise—Modulation of the Amplitude

Acoustics, 2021
The operation of a wind turbine results in a series of pulses where there is a significant instantaneous increase in the amplitude of the pressure signal, dependent upon the wind speed at the turbine blades.
Steven Cooper
doaj   +1 more source

Knot modules and the Nakanishi index [PDF]

Proceedings of the American Mathematical Society, 2002
This paper is concerned with a knot invariant called the Nakanishi index. It is defined as the size of the smallest square matrix which presents the knot module as a \(\mathbb{Z}[t, t^{-1}]\)-module. This invariant seems to have first been defined by Kawauchi who proved that it coincides with the size of a minimal generating set for the knot module ...
Kearton, C., Wilson, S. M. J.
openaire   +2 more sources

Performance Analysis of a Three-to-Five Phase Dual Matrix Converter Based on Space Vector Pulse Width Modulation

IEEE Access, 2019
In this paper, space vector pulse width modulation (SVPWM)-based algorithms for a five-phase open-end load fed from dual matrix converter (DMC) have been proposed.
Khaliqur Rahman, Atif Iqbal, Mohammed A. Al-Hitmi, Obrad Dordevic, Salman Ahmad   +4 more
doaj   +1 more source

A Symbiotic Organism Search-Based Selective Harmonic Elimination in a Switched Capacitor Multilevel Inverter

Energies, 2021
Multilevel inverters are increasingly being employed for industrial applications, such as speed control of motors and grid integration of distributed generation systems.
Manita Kumari, Adil Sarwar, Mohd Tariq, Shafiq Ahmad, Adamali Shah Noor Mohamed, Eduardo M. G. Rodrigues   +5 more
doaj   +1 more source

Phase–Amplitude Coupling and Epileptogenic Zone Localization of Frontal Epilepsy Based on Intracranial EEG

Frontiers in Neurology, 2021
Objective: This study aimed to explore the characteristics of phase-amplitude coupling in patients with frontal epilepsy based on their electrocorticography data, in order to identify the localization of epileptic regions and further guide clinical ...
Huijuan Ma, Zeyu Wang, Chunsheng Li, Jia Chen, Jia Chen, Jia Chen, Yuping Wang, Yuping Wang, Yuping Wang   +8 more
doaj   +1 more source

Vector Control of Asymmetric Dual Three-Phase PMSM in Full Modulation Range

IEEE Access, 2020
The total control range of asymmetric dual three-phase permanent magnet synchronous motor (ADT_PMSM) is divided into three different segments by voltage modulation range and current control dimensions and respective control strategies to get the ...
Yuan Zhu, Weisong Gu, Ke Lu, Zhihong Wu
doaj   +1 more source

Sparse-Encoded Codebook Index Modulation [PDF]

IEEE Transactions on Vehicular Technology, 2020
Ultra-reliable and low-latency communications (URLLC) partakes a major role in 5G networks for mission-critical applications. Sparse vector coding (SVC) appears as a strong candidate for future URLLC networks by enabling superior performance in terms of bit error rate (BER).
Emre Arslan, Ali Tugberk Dogukan, Ertugrul Basar   +2 more
openaire   +4 more sources

Dual space vector PWM technique for a three-phase to five-phase quasi Z-source direct matrix converter

Automatika, 2022
This article proposes a dual space vector PWM control technique for a three-phase to five-phase quasi Z-source direct matrix converter (QZSDMC). The proposed circuit consists of a quasi-impedance source network along with a five-phase traditional matrix ...
S. Manivannan, N. Saravanakumar, K. N. Vijeyakumar   +2 more
doaj   +1 more source

Effect of Inverter Voltage Levels on Torque Ripples of PMSM Drive [PDF]

E3S Web of Conferences
This paper investigates the performance of Permanent Magnet Synchronous Motors (PMSM) in terms of torque ripples, a critical aspect affecting their operational efficiency and stability.
Pandraka Vinodh Kumar, Rao Tinnavelli Ramamohan, Anil Kumar Rajagiri, Prasad Bhupathi Hari, Lakshmi Gundebommu Sree   +4 more
doaj   +1 more source