Results 61 to 70 of about 8,131,726 (133)

On the robustness of the average power ratios in damping estimation: application in the structural health monitoring of composites beams [PDF]

, 2010
In composites structures, cracking, delamination will cause changes in the measured dynamic response of structure and so on experimentally modal parameters.
J. Morlier, Morlier, Joseph, Yin, Honoré P., Yin, H.P., H.P. Yin   +4 more
core   +1 more source

Measurement Based Linear and Nonlinear Time Invariant Representations for High Voltage Inductive Transformer Frequency Response up to 10 kHz

IEEE Access
This paper presents the details of the development, evaluation process, and results of linear and nonlinear time-invariant models used to represent the frequency response of inductive high-voltage instrument transformers.
Imanka Dewayalage, Duane A. Robinson, Sean Elphick, Sarath Perera   +3 more
doaj   +1 more source

Development of Swept Frequency Method for Measuring Frequency Response of Photodetectors Based on Harmonic Analysis

, 2009
We develop a swept frequency method for measuring the frequency response of photodetectors; (PDs) based on harmonic analysis. In this technique, a lightwave from a laser source is modulated by a radio-frequency (RF) signal via a Mach-Zehnder LiNbO3 ...
nhzhu@semi.ac.cn, Zhang HG, Han W, Xie L, Ke JH, xiel@semi.ac.cn, Zhang BH, Zhu NH, Li W, zhhg@semi.ac.cn, jhke@semi.ac.cn, whan@semi.ac.cn, renmin@semi.ac.cn, liwei05@semi.ac.cn, Zhang BH Inst Semicond State Key Lab Integrated Optoelect Beijing 100083 Peoples R China. E-mail Address: zhbh@semi.ac.cn, Ren M   +15 more
core  

A Response Generation Framework Based on Empathy Factors, Common Sense, and Persona

IEEE Access
Building a human-like dialogue system is a challenging task that requires effective use of context, common sense and personal information. In a conversation, the responder usually analyzes the emotion, intention, and common sense involved in the speaker&#
Weijie Li, Yong Yang, Palidan Tuerxun, Xiaochao Fan, Yufeng Diao   +4 more
doaj   +1 more source

Effect of grid‐following VSCs on frequency distribution of power grid

IET Renewable Power Generation
The increasing penetration of grid‐following voltage source converters (GFL‐VSCs) in the power grid has changed the frequency dynamics of the system.
Qingyuan Ma, Lei Chen, Luyang Li, Yong Min, Yudan Shi   +4 more
doaj   +1 more source

Vibration suppression of omni-directional mobile robots for inspecting outdoor infrastructure facilities (Construction of evaluation system for vibration properties)

Nihon Kikai Gakkai ronbunshu
Infrastructure facilities have been deteriorating and require a vast number of inspections conducted by skilled engineers. Inspection robots are now necessary because of a shortage of skilled engineers.
Masato MIZUKAMI, Takaaki SATO, Ryuuta SATO, Shoji MOCHIZUKI   +3 more
doaj   +1 more source

Behavior of an Inductive Loop Sensor in the Measurement of Partial Discharge Pulses with Variations in Its Separation from the Primary Conductor

Sensors, 2018
Ideally, an insulation system must be capable of electrically insulating the active components of a machine or device subjected to high voltages. However, due to the presence of polluting agents or imperfections inside or on the surface of the insulation,
Jorge Alfredo Ardila-Rey, Aldo Barrueto, Alvaro Zerene, Bruno Albuquerque de Castro, José Alfredo Covolan Ulson, Abdullahi Abubakar Mas’ud, Patricio Valdivia   +6 more
doaj   +1 more source

Frequency-Power Control of VSWTG for Improved Frequency Regulation

, 2020
With increasing wind energy penetration and impending grid codes, it is important to enable wind-based power plants to provide sensitive frequency response in grids that may experience irregular frequency fluctuations with noise induced.
Asma Aziz (5248508), Aman Than Oo (18848137)   +1 more
core  

Experimental Evaluation of Low-Pass Shock Isolation Performance of Elastomers Using Frequency-Based Kolsky Bar Analyses

Latin American Journal of Solids and Structures
Elastomeric materials are used as shock isolation materials in a variety of environments to dampen vibrations and/or absorb energy from external impact for minimizing energy transfer between two objects or bodies.
Brett Sanborn, Bo Song, Erik Nishida, Marlene Knight   +3 more
doaj   +1 more source

Development of Eccentric Transmitter Transducer for LWD Acoustic Remote Detection

Cejing jishu
To address the challenge that traditional logging while drilling (LWD) acoustic transducers lack directional radiation capability, hindering the identification of geological structures outside the borehole in drilling environments, this study developed ...
SUN Zhifeng, QIU Ao, LIU Xien, LUO Bo, LI Jie, ZHAO Han   +5 more
doaj   +1 more source