Results 21 to 30 of about 3,187 (174)

Investigation on transient dynamic balancing of the power turbine rotor and its application

open access: yesAdvances in Mechanical Engineering, 2021
In the dynamic balancing procedure of the rotor system, the unbalance is determined as a principal parameter which should be identified firstly. In actual engineering, the interference of external noise on the rotor is usually the main factor influencing
Wangqun Deng   +4 more
doaj   +1 more source

Depth Estimation of Potential Field Sources by Using Improved Chebyshev‐Padé Downward Continuation in Wave Number Domain

open access: yesEarth and Space Science, 2020
Studies of downward continuation mainly focused on improving the stability more than depth calculation. Stable downward continuation is a promising technique for estimating the depth of sources.
Yuan Yuan   +5 more
doaj   +1 more source

SIW/HMSIW Bandpass Filters for Ka Frequency Band Serving Wireless Applications [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2021
This paper describes a novel Substrate Integrated Waveguide (SIW) bandpass filter using Chebyshev approximation and Half Mode Substrate Integrated Waveguide (HMSIW) modeling technique.
Mehdi Damou   +5 more
doaj   +1 more source

High Stop Band Rejection for Ceramic Loaded Waveguide Filters

open access: yesIEEE Access, 2020
This Paper describes the design procedure of a compact narrowband ceramic loaded filters with wide out of band response. The idea of loading the waveguide filter resonators with ceramic TEM blocks and ceramic ridge blocks are presented. Resonator loading
Sharjeel Afridi   +5 more
doaj   +1 more source

Compact Monolithic 3D-Printed Wideband Filters Using Pole-Generating Resonant Irises

open access: yesIEEE Journal of Microwaves, 2023
The design concept of a pole-generating resonant iris is demonstrated in rectangular waveguide filters in this paper. Different from conventional reactive iris, the resonant iris can generate an extra transmission pole without increasing the number of ...
Lu Qian   +5 more
doaj   +1 more source

Chained-Function Filter Synthesis Based on the Modified Jacobi Polynomials [PDF]

open access: yesRadioengineering, 2018
A new class of filter functions with pass-band ripple which derives its origin from a method of determining the chained function lowpass filters described by Guglielmi and Connor is introduced.
G. Perenic   +3 more
doaj  

Coefficients Calculation in Pascal Approximation for Passive Filter Design

open access: yesComputation, 2018
The recently modified Pascal function is further exploited in this paper in the design of passive analog filters. The Pascal approximation has non-equiripple magnitude, in contrast of the most well-known approximations, such as the Chebyshev ...
George B. Kasapoglu   +3 more
doaj   +1 more source

Digital filter for device of determining coordinates of radio signal source in satellite telecommunications systems

open access: yesКосмические аппараты и технологии, 2020
Work is devoted research of signal power dependence that will be used in the measurements and noise components of the signal from the digital filter type, filter parameters for various signal-to-noise ratios.
V. V. Sukhotin   +3 more
doaj   +1 more source

Exploring the Effects of 3D Gaze Stimulation and Color Performance in Augmented Reality‐Based Steady‐State Visual Evoked Potential

open access: yesAdvanced Intelligent Systems, EarlyView.
This study investigates how gaze mode and stimulus brightness affect augmented reality‐based steady‐state visual evoked potentials (AR‐SSVEP) brain‐computer interface (BCI) performance. Experiments with 20 participants show that binocular gaze improves recognition accuracy and stimulus luminance impacts performance.
Yiting Geng   +6 more
wiley   +1 more source

Strain analysis of black‐to‐yellow phase transitions in CsPbI3

open access: yesInfoMat, EarlyView.
All‐inorganic metal‐halide perovskite CsPbI3 shows strong potential for photovoltaic applications. Here strain analysis is used to probe the mechanisms behind the instability of its photoactive black phase. The results indicate that a relatively large positive (e1–e2) strain is the primary driver of the black‐to‐yellow phase transition.
Bangwei Jin   +6 more
wiley   +1 more source

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