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Modelling Petroleum Prices in Tanzania: A Comparative Analysis between ARIMA and Holt’s Method [PDF]

open access: yesInternational Journal of Management, Accounting and Economics, 2023
Petroleum is one of the vital sources of energy for economic activities and the most traded commodity worldwide. It is crucial to industry and civilization and as it meets a substantial portion of the world's energy requirements, it has a big impact on ...
Laban Gasper, George Abrahamu
doaj   +1 more source

Improving Myoelectric Prosthetic Arm Proportional Control Under MUAP Envelope Colored Noise

open access: yesIEEE Access, 2021
Accuracy and stability of the myoelectric prosthetic arm digital proportional control strongly depends on shape of the rectified motor unit action potential (MUAP) envelope.
Sandra Marquez-Figueroa   +2 more
doaj   +1 more source

Development Of Traditional Algorithms and Make a Hybrid Algorithm to Denoising The Color Images [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2012
The development in life has made the need very important for using images in many scientific fields like space, engineering and medicine. Due to the fact that such images are affected by various types of noises which produced from different sources which
Hanan Ali
doaj   +1 more source

The engineering skills training process modeling using dynamic bayesian nets

open access: yesРадіоелектронні і комп'ютерні системи, 2021
The subject of research in the article is the process of intelligent computer training in engineering skills. The aim is to model the process of teaching engineering skills in intelligent computer training programs through dynamic Bayesian networks ...
Andrey Chukhray, Olena Havrylenko
doaj   +1 more source

Experimental Study of Smoothing Modifications of the MUSIC Algorithm for Direction of Arrival Estimation in Indoor Environments

open access: yesIEEE Access, 2021
Nowadays, the Direction of Arrival (DoA) estimation problem attracts much attention because of emerging use cases for wireless networks. DoA is beneficial for Reconfigurable Intelligent Surfaces, indoor localization, and various navigation and sensing ...
Vladislav Molodtsov   +2 more
doaj   +1 more source

Generalized Regression Neural Network Based Fast Fading Channel Tracking Using Frequency-Domain CSI Smoothing

open access: yesIEEE Access, 2021
In the high mobility environment, the channel state information (CSI) in the last part of the packet is different from the beginning part’s actual channel.
Shun Kojima   +4 more
doaj   +1 more source

Smooth constrained mortality forecasting

open access: yesDemographic Research, 2019
Background: Mortality can be forecast by means of parametric models, principal component methods, and smoothing approaches. These methods either impose rigid modeling structures or produce implausible outcomes.
Carlo Giovanni Camarda
doaj   +1 more source

Stochastic Aspects of Proportional Vitalities Model

open access: yesMathematics, 2020
In this paper, a family of models requiring proportional mean life vitalities is considered. The problem of estimation of the parameter(s) of the model is studied in two cases of known and unknown baselines along with some simulation studies to detect ...
Mansour Shrahili   +3 more
doaj   +1 more source

ARCTIS — A MATLAB® Toolbox for Archaeological Imaging Spectroscopy

open access: yesRemote Sensing, 2014
Imaging spectroscopy acquires imagery in hundreds or more narrow contiguous spectral bands. This offers unprecedented information for archaeological research.
Clement Atzberger   +3 more
doaj   +1 more source

Review of applications and surface smoothing mechanisms of optical waveguide devices

open access: yesJournal of Hebei University of Science and Technology, 2017
Optical waveguide devices are widely used in many fields and have good development prospects. But surface roughness of waveguide device induces a passive effect on the light transmission loss and the Q value of ring cavity, which restricts the ...
Haiquan TANG   +6 more
doaj   +1 more source

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