Zobrazeno 1 - 9
of 9
pro vyhledávání: '"J A Alhassan"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 521:6330-6353
High-magnitude (amplitude $\le -3{{\ \rm per\ cent}}$) Forbush decreases (FDs) are generally employed by researchers investigating the solar-terrestrial connection mechanisms. Although it has been observed that small-amplitude FDs are relatively impo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c681dfeed29b69d110f801236ca2200b
https://doi.org/10.1093/mnras/stad783
https://doi.org/10.1093/mnras/stad783
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 520:4747-4759
We investigated the nature of protostellar objects in G358.46−0.39 and their gas kinematics using ALMA data, with the aim of understanding the ongoing star formation activities in the region. The dust continuum map reveals multiple cores (MM1a, MM1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3de1db18aae134380989b848fc81ab46
https://doi.org/10.1093/mnras/stad376
https://doi.org/10.1093/mnras/stad376
We applied principal component analysis (PCA) to the study of five ground level enhancements (GLEs) of cosmic ray (CR) events. The nature of the multivariate data involved makes PCA a useful tool for this study. A subroutine program written and imple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3828de11b4c02dd74cb9c5907441cdb1
http://arxiv.org/abs/2304.03695
http://arxiv.org/abs/2304.03695
Autor:
O. Okike, J. A. Alhassan
Publikováno v:
The European Physical Journal Plus. 137
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9421a066624763698492e8a334146dea
https://doi.org/10.1140/epjp/s13360-022-02514-z
https://doi.org/10.1140/epjp/s13360-022-02514-z
The number of sudden spin-ups in radio pulsars known as pulsar glitches has increased over the years. Though a consensus has not been reached with regards to the actual cause of the phenomenon, the electromagnetic braking torque on the crust quantifi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::975968cc309a75d3439a704428200a63
Publikováno v:
Research in Astronomy and Astrophysics. 22:105008
We present the results of analyses of the ground level enhancements (GLEs) of cosmic ray (CR) events on 1989 September 29; 2001 April 15 and 2005 January 20. This involves examination of hourly raw CR counts of an array of neutron monitors (NMs) spre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d3843e430b4b287627de1ed754de5ef
https://doi.org/10.1088/1674-4527/ac8b58
https://doi.org/10.1088/1674-4527/ac8b58
Accurate detection and precise timing of transient events such as X-ray photons, {\gamma}-ray burst, coronal mass ejections (CMEs), ground level enhancements (GLEs) and Forbush decreases (FDs) frequently raise issues that remain on the cutting edge o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39fab569b144232771f3fcaa37ff96a5
Autor:
J. K. Alhassan, S. A. Lawal
This work is on decision tree-based classification for the disbursement of scholarship. Tree-based data mining classification technique is used in other to determine the generic rule to be used to disburse the scholarship. The system based on the def
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::239ce7de341ec116ad14f8e7a682d45a
Human beings have the ability to make logical decisions. Although human decision - making is often optimal, it is insufficient when huge amount of data is to be classified. Medical dataset is a vital ingredient used in predicting patient's health con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::118b2222cb5334b43dc597603bf171a2