Results 21 to 30 of about 6,230,983 (221)

Position estimation delays in signal injection-based sensorless PMSM drives [PDF]

, 2012
The causes of position estimation delays and their effects on the sensorless control of permanent magnet synchronous motor drives are investigated. The position of a permanent magnet synchronous machine is estimated via the injection of high frequency ...
Altomare, A., Cupertino, F., Guagnano, A., Pellegrino, Gian-Mario Luigi   +3 more
core   +1 more source

Some Inferences on Three Parameters Birnbaum-Saunders Distribution: Statistical Properties, Characterizations and Applications

Computational Journal of Mathematical and Statistical Sciences, 2023
Three parameters Birnbaum-Saunders, BS (3P), distribution is an important statistical model which is useable in the fields of both pure and applied sciences.
Mohammad Shakil , Mohammad Munir , N. Kausar, Mohammad Ahsanullah, Aneeqa Khadim, M. Sirajo, Jai Narain Singh , B. M. G. Kibria   +7 more
doaj   +1 more source

Analysis of factors influencing the ultrasonic fetal weight estimation [PDF]

, 2008
Objective: The aim of our study was the evaluation of sonographic fetal weight estimation taking into consideration 9 of the most important factors of influence on the precision of the estimation. Methods: We analyzed 820 singleton pregnancies from 22 to
Alexander Strauss, Barnhard Y, Baum JD, Ben-Aroya Z, Benacerraf BR, Blann DW, Blickstein I, Bottoms SF, Carolin Kü, Chauhan SP, Chuang L, Davis RO, Deter RL, Divon MY, Dudley NJ, Edwards A, Farrell T, Ferrero A, Field NT, Hadlock FP, Hadlock FP, Hellmeyer L, Hill LM, Honarvar M, Ivo Markus Heer, Jouannic JM, Kaaij MW, Luke B, Martin Dugas, Medchill MT, Merz E, Meyer WJ, Mills MD, Mongelli M, Mongelli M, Moore TR, Nadin Vö, Nzeh DA, O'Keeffe DF, Owen P, Patterson RM, Predanic M, Pressman EK, Rossavik IK, Scott F, Shamley KT, Shepard MJ, Smith GC, Snijders RJ, Spinnato JA, Susanne Mü, Toohey JS, Townsend RR, Valea FA, Warsof SL, Wong SF, Zador IE   +56 more
core   +1 more source

A Class of Estimators for Estimating the Variance of the Ratio Estimator

JOURNAL OF THE JAPAN STATISTICAL SOCIETY, 2004
Summary: We have proposed a class of estimators for the variance of the ratio estimator which includes two standard estimators \(V_0\), \(V_2\) and the estimators \(V_H\) and \(V_3\) suggested by \textit{R. M. Royall} and \textit{K. R. Eberhardt} [Sankya, Ser. C 37, 43--52 (1975; Zbl 0335.62007)] and \textit{C. F.
Upadhyaya, Lakshmi N., Singh, Housila P., Singh, Sarjinder   +2 more
openaire   +3 more sources

A review on principles, performance and complexity of linear estimation and detection techniques for MIMO systems

Frontiers in Communications and Networks, 2023
The advent of the fifth generation (5G) of mobile networks has introduced several new use cases that are pushing mobile networks in environments that are typically supported by wired technologies.
Danilo Gaspar, Luciano L. Mendes, Tales C. Pimenta   +2 more
doaj   +1 more source

Trends in anthropogenic ammonia emissions in China since 1980: A review of approaches and estimations

Frontiers in Environmental Science, 2023
Ammonia (NH3) emissions from intensive anthropogenic activities is an important component in the global nitrogen cycle that has triggered large negative impacts on air quality and ecosystems worldwide.
Jianan Chen, Jianan Chen, Miaomiao Cheng, Maarten Krol, Wim de Vries, Qichao Zhu, Xuejun Liu, Fusuo Zhang, Wen Xu   +8 more
doaj   +1 more source

Bias adjustment of infrared-based rainfall estimation using Passive Microwave satellite rainfall data [PDF]

, 2017
This study explores using Passive Microwave (PMW) rainfall estimation for spatial and temporal adjustment of Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks-Cloud Classification System(PERSIANN-CCS).
Adler, Barret, Behrangi, Behrangi, Calheiros, Chen, Ciach, Ferraro, Griffith, Hong, Huffman, Joyce, Joyce, Kidd, Kidd, Krajewski, Kuligowski, Kuligowski, Kummerow, Lin, Marzano, Piman, Rosenfield, Scofield, Tapiador, Todd, Vicente, Weng, Wu, Zhang   +29 more
core   +1 more source

Robust Bayes-Like Estimation: Rho-Bayes estimation [PDF]

, 2016
We consider the problem of estimating the joint distribution $P$ of $n$ independent random variables within the Bayes paradigm from a non-asymptotic point of view.
Andrei N. Parvulescu (2122654), Annika Enejder (217366), Bert M. Weckhuysen (1317540), Gianluca Rago (1905328), Katrin F. Domke (2122657), Mischa Bonn (1235496), Pieter C. A. Bruijnincx (1366431), T. Alexander Riemer (2122660)   +7 more
core   +6 more sources

Spectral estimation of the fractional order of a L\'{e}vy process [PDF]

, 2009
We consider the problem of estimating the fractional order of a L\'{e}vy process from low frequency historical and options data. An estimation methodology is developed which allows us to treat both estimation and calibration problems in a unified way ...
Belomestny, Denis
core   +4 more sources

Enhanced Estimation of a Noisy Quantum Channel Using Entanglement [PDF]

, 2001
We discuss the estimation of channel parameters for a noisy quantum channel - the so-called Pauli channel - using finite resources. It turns out that prior entanglement considerably enhances the fidelity of the estimation when we compare it to an ...
Cirone, Markus A., Fischer, Dietmar G., Freyberger, Matthias, Mack, Holger   +3 more
core   +2 more sources