Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Sylvester A. Ekong"'
Publikováno v:
Advances in Materials Science. 22:85-97
The literature is flooded with scientific information on most durability properties except water absorption coefficient of masonry units like sandcrete blocks. Also, while waste papers disposal is a systemic problem due to ineffectiveness of waste ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d72bc74fc0caaf6d9cfea81ac6e434dc
https://doi.org/10.2478/adms-2022-0021
https://doi.org/10.2478/adms-2022-0021
Autor:
Ubong Williams Robert, Sunday Edet Etuk, Sylvester Andrew Ekong, Okechukwu Ebuka Agbasi, Nsikak Edet Ekpenyong, Samuel Sunday Akpan, Eme Aniefiok Umana
Publikováno v:
Advances in Materials Science. 22:64-77
Coconut husk is generated yearly as waste in large quantities but majorly under-utilized. Also, as a result of high embodied carbon, cement production is one of the largest contributors to construction sector carbon footprint. Since accumulation of u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e10b1f354a5e518440f19499ce4e949b
https://doi.org/10.2478/adms-2022-0008
https://doi.org/10.2478/adms-2022-0008
Autor:
Lebe A. Nnana, Sylvester A. Ekong, Armstrong Udochukwu Anonaba, Ekong U. Nathaniel, Ubong Williams Robert, Okechukwu Ebuka Agbasi, Sunday E. Etuk
Publikováno v:
Polytechnica. 4:97-106
In the midst of challenges facing affordable, safe and sustainable housing development, there is a continuous increase in the vast amounts of carton papers, melon seed husks, and groundnut shells discarded as waste materials. This is of great concern
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f29c92c16a7949a1a58d0e818aaa56d2
https://doi.org/10.1007/s41050-021-00034-w
https://doi.org/10.1007/s41050-021-00034-w
Autor:
Sylvester A. Ekong, Uduakobong S. Okorie, Akpan N. Ikot, Ituen B. Okon, Lewis F. Obagboye, Hewa Y. Abdullah, Ramazan Sever, Karwan W. Qadir
Within the framework of non-relativistic quantum mechanics, the bound state approximate solution of the SE is solved for the coshine Yukawa potential (CYP) using the Nikiforov–Uvarov (NU) method. By employing the Greene-Aldrich-type approximation s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::310abb39eddfcebada7fbe8d3be9d8da
https://doi.org/10.21203/rs.3.rs-2090492/v1
https://doi.org/10.21203/rs.3.rs-2090492/v1
Autor:
Zaidoon Taha Abdulrazzaq, Ubong Williams Robert, Armstrong Udochukwu Anonaba, Sunday E. Etuk, Okechukwu Ebuka Agbasi, Sylvester A. Ekong
Publikováno v:
International Journal of Thermophysics. 42
This study was designed to assess the possibility of tailoring waste papers and wood dust into composite materials with plaster of Paris (P.O.P) and also determine the suitability of using the developed composites as ceiling panels in building constr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8df92be0ac2bcc9494b131c6fe050511
https://doi.org/10.1007/s10765-020-02780-y
https://doi.org/10.1007/s10765-020-02780-y
Mass spectrum of heavy quarkonium for screened Kratzer potential (SKP) using series expansion method
Publikováno v:
The European Physical Journal Plus. 136
In this study, the radial Schrodinger equation is solved with the screened Kratzer potential using the series expansion method. The bound state energy spectra are obtained. To check the correctness of the result obtained from this method, we carry ou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65550132d2f61ed863a2e830bc5a7f2c
https://doi.org/10.1140/epjp/s13360-021-01090-y
https://doi.org/10.1140/epjp/s13360-021-01090-y
Autor:
Sylvester A. Ekong, David A. Oyegoke
Publikováno v:
International Letters of Chemistry, Physics and Astronomy. 64:63-68
This paper aims at determining the total energy and bond lengths of some polyatomic organic molecules, using quantum Monte Carlo (QMC) CASINO-code. The QMC code employed the VMC and DMC methods in the computations with emphasis on DMC, and using Slat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::398faa211a4bc9f6cccb3ea425425e70
https://doi.org/10.18052/www.scipress.com/ilcpa.64.63
https://doi.org/10.18052/www.scipress.com/ilcpa.64.63
Autor:
Sylvester A. Ekong, Mike O. Osiele
Publikováno v:
International Letters of Chemistry, Physics and Astronomy. 63:106-110
We have employed a quantum confinement (QC) model to the study of different shapes of nanocrystalline silicon (nc-Si) quantum dot. Each dots (shapes), although within the limits of an effective diameter of 3nm, exhibits divergence leading to differen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1d06b400c96f8005982a07967fcbfed
https://doi.org/10.18052/www.scipress.com/ilcpa.63.106
https://doi.org/10.18052/www.scipress.com/ilcpa.63.106
Publikováno v:
International Letters of Chemistry, Physics and Astronomy. 59:106-114
Quantum Monte Carlo (QMC) calculations of the electric dipole moment and ground-state total energy of hydrazine (N2H4) molecule using CASINO-code have been carried-out by employing the VMC and DMC techniques. The optimization of the Slater-Jastrow tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a0a7d1a8980b5dde5025975518832a1
https://doi.org/10.56431/p-85120f
https://doi.org/10.56431/p-85120f