Research Articles (Physics): Recent submissions

Now showing items 1-20 of 625

II. ALMA imaging of dense-gas tracers in SDP.81 : evidence for low mechanical heating and a sub-solar metallicity in a z = 3.04 dusty galaxy

Rybak, M.; Van Marrewijk, J.; Hodge, J.A.; Andreani, P.; Calistro Rivera, G.; Graziani, L.; McKean, J.P.; Viti, S.; Van der Werf, P.P. (EDP Sciences, 2023-11)

We present deep ALMA Band 3 observations of the HCN, HCO+, and HNC(4–3) emission in SDP.81, a well-studied z = 3:042; strongly lensed galaxy. These lines trace the high-density gas, which remains almost entirely unexplored ...
Single and combined neurotoxic, cytotoxic and genotoxic effects of 5GHz MIMO waves and computed tomography irradiation in male Wistar rats

Obajuluwa, Adejoke Olukayode; Lech, James C.; Amina, Danlami; Onwuka, Chidiogo Chukwunweike; Bolarinwa, Rahman Ayodele; Obajuluwa, Tiwalola Madoc; Fafure, Adedamola Adediran; Kruger, T.P.J. (Tjaart); Afolabi, Olakunke Bamikole; Anish, Abel; Emoruwa, Olusegun; Baker, Malcolm (Taylor and Francis, 2023)

A significant public concern is how technologies that emit electromagnetic waves interact and affect the biota because they are linked to the dysregulation of genes involved in neurotransmission, oxidative stress, and ...
Effects of sintering temperature on the microstructure, mechanical, tribological and thermophysical properties of GNPs/IN738 composite

Ogunbiyi, Olugbenga; Jamiru, Tamba; Sadiku, Rotimi; Salifu, Smith; Maepa, Charity E. (Elsevier, 2023-03)

While IN738 Ni-based superalloy is a high strength alloy, it is feasible to improve its properties at the bulk level by reinforcing with graphene nanoplatelets (GNPs), taking advantage of the superior mechanical, ...
Wasserstein distance between noncommutative dynamical systems

Duvenhage, Rocco (Elsevier, 2023-11)

We introduce and study a class of quadratic Wasserstein distances on spaces consisting of generalized dynamical systems on a von Neumann algebra. We emphasize how symmetry of such a Wasserstein distance arises, but also ...
Structural and optical characterization of beta‑gallium oxide

Muramba, Valentine W.; Ali, Abdulraoof I.; Nel, Jacqueline Margot (Springer, 2023-12)

Demands for cheaper solar cells have led researchers to less complex, low-temperature, vacuum-free thin-film deposition processes, like spray pyrolysis and sol– gel spin coating. Previous studies of β-Ga2O3 thin-film ...
Investigation of the structural and temperature-dependent electrical properties of MZnO (M = Ce and Sm) Schottky diode devices fabricated using the sol-gel spin-coating technique

Ahmed, Mustafa Abaas Mohamedelkhair; Meyer, W.E. (Walter Ernst); Nel, Jacqueline Margot (Springer, 2023-06-09)

In the present study, the Schottky diode devices based on Ce and Sm co-doped ZnO thin films were fabricated using the sol–gel spin-coating technique with Pd and Pt as Schottky contacts. The structural and electrical ...
Flow fluctuation during flow boiling of binary mixtures in high aspect ratio microchannel

Widyatama, Arif; Venter, Mandi; Bin Mohamad, Muhammad Sofwan; Dirker, Jaco; Orejon, Daniel; Sefiane, Khellil (IOP Publishing, 2023)

Flow boiling performance is affected by several factors, such as channel characteristics and working fluid types. It is found that there is still limited study that discusses the use of binary mixtures combined with high ...
Swift heavy ion irradiation of polyaniline-graphene nanocomposite films : structural and optical properties

Chilukusha, D.C.; Mboukam, J.J.; Maphiri, Vusani Muswa; Manyala, Ncholu I.; Msimanga, Mandla (Elsevier, 2024-01)

Please read abstract in the article.
Metal-organic polyhedra (MOPs) as emerging class of metal-organic frameworks for CO2 photocatalytic conversions : current trends and future outlook

Adeola, Adedapo Oluwasanu; Ighalo, Joshua O.; Kyesmen, Pannan Isa; Nomngongo, Philiswa N. (Elsevier, 2024-02)

Please read abstract in the article.
Mechanism of formation water molecules and chemical bonds in Leptothrix materials

Mirzayeva, D.M.; Aghayeva, S.A.; Kaplina, S.P.; Slavov, L.; Gustova, M.V.; Tiep, N.V.; Tuan, P.L.; Maletskii, A.V.; Doroshkevich, A.S.; Thabethe, Thabsile Theodora; Hasanov, K.M.; Kostov, L.K.; Mauyey, B. (Jomard Publishing, 2024-02)

The provided study involves investigating chemical interactions in Leptothrix biomaterial through infrared spectroscopy. The analysis explores variations in chemical relationships based on the nature of chemical bonds ...
Influence of nitrogen and sulfur co-doped activated carbon used as electrode material in EmiFSI ionic liquid toward high-energy supercapacitors

Kitenge, Vianney Ngoyi; Tarimo, Delvina Japhet; Rutavi, Gift; Maphiri, Vusani Muswa; Sarr, Samba; Diop, Modou; Chaker, Mohamed; Manyala, Ncholu I. (Elsevier, 2024-03)

Please read abstract in the article.
Electrical double-layer capacitor based on low aqueous electrolyte contents in Emim-TFO ionic liquid

Kitenge, Vianney Ngoyi; Tarimo, Delvina Japhet; Oyedotun, Kabir Oyeniran; Rutavi, Gift; Bakhoum, Daba T.; Manyala, Ncholu I. (Wiley-Hindawi, 2023-04)

Please read abstract in the article.
Embedding atomic cobalt within hierarchical porous carbon derived from cross-linked polymers for high energy supercapacitors

Bakhoum, Daba T.; Sarr, Samba; Maphiri, Vusani Muswa; Sylla, Ndeye Fatou; Ndiaye, Ndeye Maty; Diop, Modou; Ngom, Balla D.; Chaker, Mohamed; Manyala, Ncholu I. (Elsevier, 2024-03)

Please read abstract in the article.
Nitrogen-phosphorous co-doped porous carbon from cross-linked polymers for supercapacitor applications

Bakhoum, Daba T.; Sylla, Ndeye Fatou; Sarr, Samba; Maphiri, Vusani Muswa; Ndiaye, Ndeye Maty; Tarimo, Delvina Japhet; Seck, Astou; Ngom, Balla D.; Chaker, Mohamed; Manyala, Ncholu I. (Elsevier, 2023-09)

Please read abstract in the article.
Women in physics in Zimbabwe : the struggle continues

Chitake, Olivia; Ndlovu, Nothando; Matandirotya, Electdom; Mazunga, Felix; Sumanya, Clemence; Danga, Helga T. (AIP Publishing, 2023)

Gender imbalance impedes the participation of women in physics. The number of women in physics in Zimbabwe remains very low relative to men. The few women who graduate with BSc degrees in physics change professions or ...
Workshop report : becoming a leader in entrepreneurship

Montes, Lilia Meza; Acosta, Sofía; Diale, M.; Gammag, Rayda (AIP Publishing, 2023-11-17)

Despite significant inroads in female participation in the global workforce, senior leadership positions still remain predominantly male. Although many countries are promoting the participation of women in entrepreneurial ...
Trivalent atom defect-complex induced defect levels in germanium for enhanced Ge-based device performance

Igumbor, Emmanuel; Dongho-Nguimdo, Moise; Mapasha, Refilwe Edwin; Kalimuthu, Rajendran; Raji, Abdulrafiu; Meyer, Walter Ernst (Springer, 2024-04)

Please read abstract in the article.
Recent development in the formation and surface modification of cellulose-bead nanocomposites as adsorbents for water purification : a comprehensive review

Ivbanikaro, Anna E.; Okonkwo, Jonathan O.; Sadiku, Emmanuel R.; Maepa, Charity E. (De Gruyter, 2023-08)

Water pollution is an issue of global concern that demands effective and sustainable solutions through water purification. Adsorption is a popular method for water treatment because it is inexpensive and has a high performance ...
The effects of thermal treatment under argon–oxygen ambient on the microstructure and optical properties of DC sputtered Cr thin films for selective solar absorbers applications

Tibaijuka, J.J.; Nyarige, Justine Sageka; Diale, M.; Mlyuka, N.R.; Samiji, M.E. (Springer, 2023-01)

This work investigated the effect of thermal treatment of as-deposited chromium (Cr) thin films in a vacuum and argon/oxygen ambient for effective deposition of spectral selective solar absorber multilayer films. The DC ...
Benzodithiophene unit copolymerization to improve the stability of thiophene-based organic solar cells

Saito, Hiroki; Uchiyama, Takayuki; Okada-Shudo, Yoshiko; Mammo, Wendimagegne; Kruger, T.P.J. (Tjaart); Vohra, Varun; Tegegne, Newayemedhin A. (IOP Publishing, 2023-01)

Please read abstract in the article.

Now showing items 1-20 of 625

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