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Neutron density waves versus temperature waves

open access: yesInternational Journal of Advanced Nuclear Reactor Design and Technology, 2021
Neutron and temperature wave propagations have specific applications in the dynamics of nuclear installations. This paper is a timely review of the concept of plane neutron density wave, within the context of monochromatic diffusion theory, with a focus ...
Nassar H.S. Haidar
doaj   +1 more source

Polarization of temperature waves in a dual heat flux vector space

open access: yesPartial Differential Equations in Applied Mathematics, 2021
A new concept of a “dual” heat flux vector is advanced to phenomenologically explain the polarization of conventional temperature waves, which are known to be transverse.
Nassar H.S. Haidar
doaj   +1 more source

Uranium Recovery from Phosphates for Self-Sufficient Nuclear Power in the Eastern Mediterranean

open access: yesScience and Technology of Nuclear Installations, 2022
Production of phosphate fertilizers (PF), without uranium recovery, amounts to dispersing uranium compounds on agricultural fields. These compounds are naturally hidden in phosphate rock deposits prior to processing.
Nassar H. S. Haidar
doaj   +1 more source

Frequency response of certain temporal and complex transfer functions for the Interfacial 1D temperature wave

open access: yesComptes Rendus. Mécanique, 2023
This note is concerned with the dynamics of 1D temperature waves generated by time modulation of a boundary heat flux. It demonstrates how a certain temporal transfer function of both parabolic and low frequency hyperbolic interfacial temperature waves ...
Haidar, Nassar
doaj   +1 more source

Monotone Simultaneous Paths Embeddings in $\mathbb{R}^d$ [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2018
We study the following problem: Given $k$ paths that share the same vertex set, is there a simultaneous geometric embedding of these paths such that each individual drawing is monotone in some direction?
David Bremner   +8 more
doaj   +1 more source

Pythagorean harmonic summability of Fourier series

open access: yesDemonstratio Mathematica, 2021
This paper explores the possibility for summing Fourier series nonlinearly via the Pythagorean harmonic mean. It reports on new results for this summability with the introduction of new concepts like the smoothing operator and semi-harmonic summation ...
Haidar Nassar H. S.
doaj   +1 more source

Comparison analysis of Euclidean and Gower distance measures on k-medoids cluster

open access: yesJurnal Teknologi dan Sistem Komputer, 2021
K-medoids clustering uses distance measurement to find and classify data that have similarities and inequalities. The distance measurement method selection can affect the clustering performance for a dataset.
Agil Aditya   +2 more
doaj   +1 more source

Fourier descriptor on Lontara scripts handwriting recognition

open access: yesIlkom Jurnal Ilmiah, 2023
Hal yang kritis dalam proses pengenalan pola adalah ekstraksi fitur. Merupakan suatu metode untuk mendapatkan ciri-ciri suatu citra (image) sehingga dapat dikenali satu sama lain.
Fitriyani Umar   +2 more
doaj   +1 more source

A Euclidean-based decision model for logistic mobilisation to disaster area

open access: yesJournal of Transport and Supply Chain Management, 2023
Background: The fulfilment of the emergency response to the disaster area not only prioritises foods or medicines but also helps in mobilisation of equipment, facilities, and infrastructures in the form of logistics.
Ayu K. Ferina, Ditdit N. Utama
doaj   +1 more source

Perbandingan Performansi Model pada Algoritma K-NN Terhadap Klasifikasi Berita Fakta Hoaks Tentang Covid-19

open access: yesEdumatic, 2021
During Covid-19 pandemic, there was various hoax news about Covid-19. There are truth-clarification platforms for hoax news about Covid-19 such as Jala Hoax and Saber Hoax which categorize into misinformation and disinformation.
Wahyu Hidayat   +4 more
doaj   +1 more source

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