Results 21 to 30 of about 10,344,236 (307)
An Improved Method for InP HEMT Noise-Parameter Determination Based on 50-Ω Noise Measurements
In this paper, we propose an improved method for extracting the four noise parameters of InP HEMT devices based on a 50- $\Omega $ noise measurement system. The noise equivalent circuit and noise correlation matrix technique is combined with 50- $\Omega
Yuanting Lyu +3 more
doaj +1 more source
Uncertainty Analysis in the Noise Parameters Estimation
The new approach to the uncertainty estimation in modelling acoustic hazards by means of the interval arithmetic is presented in the paper. In the case of the noise parameters estimation the selection of parameters specifying the acoustic wave ...
Pawlik P., Batko W.
doaj +1 more source
A Study on Distortion Estimation Based on Image Gradients
Image noise is a variation of uneven pixel values that occurs randomly. A good estimation of image noise parameters is crucial in image noise modeling, image denoising, and image quality assessment.
Sin Chee Chin +3 more
doaj +1 more source
"PARAMETERS AFFECTING NOISE INDUCED HEARING LOSS IN INDUSTRY" [PDF]
The paper is based on a study conducted in three different industries on 84.4 on their employees to determine the effect of over all noise intensity, length of employment and rest periods among them.
D. Parvizpour, P. Meshgi
doaj +2 more sources
Effect of Profile Modification on Noise in Involute Gear Pair
Ensuring regular movement and power transmission in gear wheels is possible with a suitable tooth profile. Although involute profiles have a structure that can provide conjugate movement in accordance with the law of gearing, transmission errors that ...
Regaip Menküç +2 more
doaj +1 more source
Parameter estimation of impulsive noise for channel coded communication systems
In this paper, an impulsive noise estimation algorithm for generating bit log‐likelihood ratios (LLRs) for channel coded systems in impulsive noise environments is proposed. This approach is to design the LLR detector in the maximum‐likelihood (ML) sense,
Chun‐Yin Chen, Mao‐Ching Chiu
doaj +1 more source
NOISE AND VIBRATION EFFECTS ON HUMAN ORGANISM, PRODUCED BY THE DEVELOPMENT ACTIVITIES OF THE PINOASA MINIER PERIMETER [PDF]
At present, noise pollution along with atmospheric pollution and waste management are serious problems faced by Europe's population. According to World Health Organization statistics, half of Europeans live in permanent noise and one third suffer from ...
Nicoleta-Maria MIHUT
doaj
STUDY OF NOISE PROTECTION PROPERTIES OF MATERIALS AND CLOTHES PACKAGES
The work is devoted to the study of the noise-protective ability of textile materials used for special clothing. An installation has been developed that allows measuring the noise level passing through the materials.
ZH. . Usenbekov +3 more
doaj
Calpain small subunit homodimerization is robust and calcium‐independent
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Weak–Noise Modulation–Estimation of Vector Parameters [PDF]
We address the problem of modulating a parameter onto a power-limited signal, transmitted over a discrete-time Gaussian channel and estimating this parameter at the receiver. Continuing an earlier work, where the optimal trade-off between the weak-noise estimation performance and the outage probability (threshold-effect breakdown) was studied for a ...
openaire +2 more sources

