Results 21 to 30 of about 613,752 (314)

Forecasting the Beef Meat Prices in Erbil Using Box-Jenkins Models

open access: yesEurasian Journal of Management & Social Sciences, 2020
Foodstuff has a crucial role for everybody life in the world. In Iraq, beef meat is one of the important parts of the food basket of every household in Erbil.
Feink Mohammed Omer, Wasfi Tahir Salih
doaj   +1 more source

A DFT-based Low Complexity LMMSE Channel Estimation Technique for OFDM Systems

open access: yesJournal of Telecommunications and Information Technology, 2022
The linear minimum mean square error (LMMSE) channel estimation technique is often employed in orthogonal frequency division multiplexing (OFDM) systems because of its optimal performance in the mean square error (MSE) performance.
Jyoti Prasanna Patra   +2 more
doaj   +1 more source

Logarithmic type predictive estimators under simple random sampling

open access: yesAIMS Mathematics, 2022
This study introduces a novel predictive estimation approach of the population mean based on logarithmic type estimators as predictor under simple random sampling.
Shashi Bhushan   +3 more
doaj   +1 more source

Mean square error of the traditional replacement for the linear mechanical system

open access: yesVietnam Journal of Mechanics, 1993
The error between mean square responses of the original mechanical linear system and the system obtained by using the traditional replacement is investigated.
Nguyen Dong Anh
doaj   +1 more source

Review of Root-Mean-Square Error Calculation Methods for Large Deployable Mesh Reflectors

open access: yesInternational Journal of Aerospace Engineering, 2022
In the design of a large deployable mesh reflector, high surface accuracy is one of ultimate goals since it directly determines overall performance of the reflector. Therefore, evaluation of surface accuracy is needed in many cases of design and analysis
Sichen Yuan
doaj   +1 more source

Modified Estimator of Finite Population Variance under Stratified Random Sampling

open access: yesEngineering Proceedings, 2023
This paper proposes a generalized estimator of finite population variance using the auxiliary information under stratified random sampling. The expressions for bias and mean square error equations of the proposed estimator up to the first degree of ...
Yahaya Zakari, Isah Muhammad
doaj   +1 more source

Optimum Thresholding Using Mean and Conditional Mean Square Error [PDF]

open access: yesSSRN Electronic Journal, 2017
We consider a univariate semimartingale model for (the logarithm of) an asset price, containing jumps having possibly infinite activity (IA). The nonparametric threshold estimator of the integrated variance IV proposed in Mancini 2009 is constructed using observations on a discrete time grid, and precisely it sums up the squared increments of the ...
MANCINI, CECILIA, Figueroa Lopez, Jose
openaire   +4 more sources

A new hybrid method for data analysis when a significant percentage of data is missing [PDF]

open access: yesJournal of Hyperstructures
This article aims to compare the efficiency of different imputation methods with missing data. In this way we use mean, median, Expected-Maximization (EM), regression imputation(RI) and multiple imputations (MI) to replace missing data.In fact, we employ
Behrouz Fathi-Vajargah, Ahmad Nouraldin
doaj   +1 more source

Predicting the Future Burden of Renal Replacement Therapy in Türkiye Using National Registry Data and Comparative Modeling Approaches

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül   +2 more
wiley   +1 more source

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

open access: yesFEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

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