Results 21 to 30 of about 568,091 (189)

Upstream open loop control of the recirculation area downstream of a backward-facing step [PDF]

open access: yes, 2014
The flow downstream a backward-facing step is controlled using a pulsed jet placed upstream of the step edge. Experimental velocity fields are computed and used to the recirculation area quantify. The effects of jet amplitude, frequency and duty cycle on
Aider, Jean-Luc, Gautier, Nicolas
core   +2 more sources

How the duty cycle affects wear and corrosion: A parametric study in the Ni–B–TiN composite coatings

open access: yesResults in Surfaces and Interfaces, 2023
TiN-reinforced Ni–B composite coatings were synthesized in the watts bath using pulse electrodeposition method at different duty cycles of 20%, 40%, 60%, and 80%.
Fatih Doğan   +3 more
doaj   +1 more source

Analysis of the engine test cycles from China VI heavy duty vehicle standard and China automotive test cycle [PDF]

open access: yesE3S Web of Conferences, 2021
This paper studied the engine test cycles including world harmonized steady cycle (WHSC), world harmonized transient cycle (WHTC) , china heavy-duty steady cycle (CHSC) and china heavy-duty transient cycle (CHTC) based on a diesel engine which meet the ...
Wang Xiaowei   +4 more
doaj   +1 more source

Adaptive duty cycle control–based opportunistic routing scheme to reduce delay in cyber physical systems

open access: yesInternational Journal of Distributed Sensor Networks, 2019
Wireless sensor networks are the foundation of cyber physical systems. In loss and delay sensitive wireless sensor networks, there is much room for improving the performance of opportunistic routing scheme. In this article, an adaptive duty cycle control–
Xuemei Xiang   +5 more
doaj   +1 more source

Effect of Pulse Reverse electrodeposition Parameters on the Microstructure of the Ni/NiO Composite Coating

open access: yesInternational Journal of Electrochemical Science, 2020
In this paper, a Ni/NiO composite coating has been prepared by the pulse reverse current (PRC) plating technique and the effects of parameters including average current density, pulse frequency, total duty cycle, forward duty cycle, plating temperatures ...
Ping Wang   +4 more
doaj   +1 more source

A Programmable Frequency Divider With a Full Modulus Range and 50% Output Duty Cycle

open access: yesIEEE Access, 2020
Programmable frequency dividers with wide modulus range and 50% output duty cycle are highly desirable in the design of frequency synthesizers and phase-locked loops.
Yao Wang   +4 more
doaj   +1 more source

Reporting for Duty: The duty cycle in Functional Electrical Stimulation research. Part I: Critical commentaries of the literature

open access: yesEuropean Journal of Translational Myology, 2018
There are several parameters that can be modulated during electrical stimulation-induced muscle contraction to obtain external work, i.e., Functional Electrical Stimulation (FES). The literature has several reports of the relationships of parameters such
Matthew J. Taylor   +2 more
doaj   +1 more source

DLL-based 4-phase duty-cycle and phase correction circuit for high frequency clock tree

open access: yesMATEC Web of Conferences, 2016
In high-speed data transmission applications such as double data rate memory and double sampling ADCs, clock generation and distribution circuits must provide the clocks with precise duty cycle of 50% and sufficient timing margin.
Song Jaewoo, Shin Hee-Am, Kim Soo-Won
doaj   +1 more source

VTA-SMAC: Variable Traffic-Adaptive Duty Cycled Sensor MAC Protocol to Enhance Overall QoS of S-MAC Protocol

open access: yesIEEE Access, 2021
Sensing and monitoring the physical conditions are basic purposes of Wireless Sensor Networks (WSN). Sensor nodes are the building blocks of WSN and they are battery operated.
Masood Ur Rehman   +4 more
doaj   +1 more source

Faraday spectroscopy of atoms confined in a dark optical trap [PDF]

open access: yes, 2008
We demonstrate Faraday spectroscopy with high duty cycle and sampling rate using atoms confined to a blue-detuned optical trap. Our trap consists of a crossed pair of high-charge-number hollow laser beams, which forms a dark, box-like potential.
D. McGloin   +4 more
core   +1 more source

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