Browsing Research Articles (Physics) by Title

Browsing Research Articles (Physics) by Title

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  • Microstructure and crystal structure of an equimolar Mg-Ti alloy processed by Simoloyer high-energy ball mill 
    Maweja, Maje; Maweja, Kasonde; Van der Berg, Nic (Nicolaas George) (Elsevier, 2010-05)
    The solid solubility of 50-50 at.% Mg-Ti powder mixtures was achieved by means of high energy ball milling in a Simoloyer equipment. XRD and HRTEM analyses revealed the existence of FCC and BCC matrix of Ti solid solution ...
  • Microstructure evolution and diffusion of ruthenium in silicon carbide, and the implications for structural integrity of SiC layer in TRISO coated fuel particles 
    Munthali, Kinnock V.; Theron, C.C. (Chris); Auret, Francois Danie; Coelho, Sergio M.M.; Prinsloo, Linda Charlotta; Njoroge, Eric Gitau (Elsevier, 2014-05)
    A thin film of ruthenium (Ru) was deposited on n-type 4H–SiC and 6H–SiC by electron beam deposition technique so as to study interface reaction of ruthenium with silicon carbide at various annealing temperatures, and in ...
  • Microwave assisted synthesis of MnO2 on nickel foam-graphene for electrochemical capacitor 
    Bello, Abdulhakeem; Fashedemi, Omobosede O.; Fabiane, Mopeli; Lekitima, Joel N.; Ozoemena, Kenneth I.; Manyala, Ncholu I. (Elsevier, 2013-12)
    A green chemistry approach (hydrothermal microwave irradiation) has been used to deposit manganese oxide on nickel foam-graphene. The 3D graphene was synthesized using nickel foam template by chemical vapor deposition ...
  • Microwave synthesis : characterization and electrochemical properties of amorphous activated carbon-MnO2 nanocomposite electrodes 
    Bello, Abdulhakeem; Fashedemi, Omobosede O.; Barzegar, Farshad; Madito, M.J. (Moshawe); Momodu, Damilola Y.; Masikhwa, T.M. (Tshifhiwa); Dangbegnon, Julien K.; Manyala, Ncholu I. (Elsevier, 2016-10)
    The green chemistry route (Microwave) has been used to produce nanocomposite materials based on activated carbon (AC) and manganese (Mn) oxide nanostructures. XRD analysis revealed that amorphous and crystalline oxide ...
  • Microwave-assisted synthesis of cobalt sulphide nanoparticle clusters on activated graphene foam for electrochemical supercapacitors 
    Masikhwa, T.M. (Tshifhiwa); Madito, M.J. (Moshawe); Bello, Abdulhakeem; Lekitima, Joel N.; Manyala, Ncholu I. (Royal Society of Chemistry, 2017)
    Cobalt sulphide (Co9S8) nanoparticles clusters embedded in activated graphene foam (AGF) structure were prepared using microwave-assisted hydrothermal synthesis. Morphological characterization of as-prepared Co9S8/AGF ...
  • MIGHTEE : total intensity radio continuum imaging and the COSMOS/XMM-LSS Early Science fields 
    Heywood, I.; Jarvis, M.J.; Hale, C.L.; Whittam, I.H.; Bester, H.L.; Hugo, B.; Kenyon, J.S.; Prescott, M.; Smirnov, Oleg M.; Tasse, C.; Afonso, J.M.; Best, P.N.; Collier, J.D.; Deane, Roger; Frank, B.S.; Hardcastle, M.J.; Knowles, K.; Maddox, N.; Murphy, E.J.; Prandoni, I.; Randriamampandry, S.M.; Santos, M.G.; Sekhar, S.; Tabatabaei, F.; Taylor, A.R.; Thorat, Kshitij (Oxford University Press, 2022-01)
    Please read abstract in the article.
  • MIGHTEE-HI : discovery of an Hi-rich galaxy group at z=0.044 with MeerKAT 
    Ranchod, Shilpa; Deane, Roger; Ponomareva, Anastasia A.; Blecher, Tariq; Frank, Bradley S.; Jarvis, Matt J.; Maddox, Natasha; Mulaudzi, Wanga; Glowacki, Marcin; Hess, Kelley M.; Tudorache, Madalina; Verdes-Montenegro, Lourdes; Adams, Nathan J.; Bowler, Rebecca A.A.; Collier, Jordan D.; Taylor, Russ (Oxford University Press, 2021-09)
    Please read abstract in the article.
  • MIGHTEE-HI : discovery of an H I-rich galaxy group at z = 0.044 with MeerKAT 
    Ranchod, Shilpa; Deane, Roger; Ponomareva, Anastasia A.; Blecher, Tariq; Frank, Bradley S.; Jarvis, Matt J.; Maddox, Natasha; Mulaudzi, Wanga; Glowacki, Marcin; Hess, Kelley M.; Tudorache, Madalina; Verdes-Montenegro, Lourdes; Adams, Nathan J.; Bowler, Rebecca A.A.; Collier, Jordan D.; Taylor, Russ (Oxford University Press, 2021-07)
    We present the serendipitous discovery of a galaxy group in the XMM-LSS field with MIGHTEE Early Science observations. 20 galaxies are detected in H I in this z ∼ 0.044 group, with a 3σ column density sensitivity of NH I ...
  • Migration behaviour of Europium implanted into single crystalline 6H-SiC 
    Mohlala, T.M.; Hlatshwayo, Thulani Thokozani; Mlambo, Mbuso; Njoroge, Eric Gitau; Motloung, Setumo Victor; Malherbe, Johan B. (Elsevier, 2017-07)
    Migration behaviour of Europium (Eu) implanted into 6H-SiC was investigated using Rutherford backscattering spectroscopy (RBS), RBS in a channelling mode (RBS-C) and scanning electron microscopy (SEM). Eu ions of 360 keV ...
  • Migration behaviour of selenium implanted into polycrystalline 3C–SiC 
    Abdalla, Zaki Adam Yousif; Ismail, Mahjoub Yagoub Abdalla; Njoroge, Eric Gitau; Hlatshwayo, Thulani Thokozani; Wendler Elke; Malherbe, Johan B. (Elsevier, 2020-05)
    Please read abstract in the article.
  • Millimeter light curves of Sagittarius A* observed during the 2017 Event Horizon Telescope campaign 
    Wielgus, Maciek; Marchili, Nicola; Marti-Vidal, Ivan; Keating, Garrett K.; Ramakrishnan, Venkatessh; Tiede, Paul; Fomalont, Ed; Issaoun, Sara; Neilsen, Joey; Nowak, Michael A.; Blackburn, Lindy; Gammie, Charles F.; Goddi, Ciriaco; Haggard, Daryl; Lee, Daeyoung; Moscibrodzka, Monika; Tetarenko, Alexandra J.; Bower, Geoffrey C.; Chan, Chi-kwan; Chatterjee, Koushik; Chesler, Paul M.; Dexter, Jason; Doeleman, Sheperd S.; Georgiev, Boris; Gurwell, Mark; Johnson, Michael D.; Marrone, Daniel P.; Mus, Alejandro; Psaltis, Dimitrios; Ripperda, Bart; Witzel, Gunther; Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Algaba, Juan Carlos; Anantua, Richard; Asada, Keiichi; Azulay, Rebecca; Bach, Uwe; Baczko, Anne-Kathrin; Ball, David; Baloković, Mislav; Barrett, John; Baubock, Michi; Benson, Bradford A.; Bintley, Dan; Blundell, Raymond; Boland, Wilfred; Bouman, Katherine L.; Boyce, Hope; Bremer, Michael; Brinkerink, Christiaan D.; Brissenden, Roger; Britzen, Silke; Broderick, Avery E.; Broguiere, Dominique; Bronzwaer, Thomas; Bustamante, Sandra; Byun, Do-Young; Carlstrom, John E.; Ceccobello, Chiara; Chael, Andrew; Chatterjee, Shami; Chen, Ming-Tang; Chen (陈永军), Yongjun; Cho, Ilje; Christian, Pierre; Conroy, Nicholas S.; Conway, John E.; Cordes, James M.; Crawford, Thomas M.; Crew, Geoffrey B.; Cruz-Osorio, Alejandro; Cui, Yuzhu; Davelaar, Jordy; De Laurentis, Mariafelicia; Deane, Roger; Dempsey, Jessica; Desvignes, Gregory; Dhruv, Vedant; Dzib, Sergio A.; Eatough, Ralph P.; Emami, Razieh; Falcke, Heino; Farah, Joseph; Fish, Vincent L.; Ford, H. Alyson; Fraga-Encinas, Raquel; Freeman, William T.; Friberg, Per; Fromm, Christian M.; Fuentes, Antonio; Galison, Peter; Garcia, Roberto; Gentaz, Olivier; Gold, Roman; Gomez-Ruiz, Arturo I.; Gomez, José L.; Gu (顾敏峰), Minfeng; Hada, Kazuhiro; Haworth, Kari; Hecht, Michael H.; Hesper, Ronald; Ho (何子山), Luis C.; Ho, Paul; Honma, Mareki; Huang, Chih-Wei L.; Huang (黄磊), Lei; Hughes, David H.; Ikeda, Shiro; Impellizzeri, C. M. Violette; Inoue, Makoto; James, David J.; Jannuzi, Buell T.; Janssen, Michael; Jeter, Britton; Jiang, Wu; Jimenez-Rosales, Alejandra; Jorstad, Svetlana; Joshi, Abhishek, V.; Jung, Taehyun; Karami, Mansour; Karuppusamy, Ramesh; Kawashima, Tomohisa; Kettenis, Mark; Kim, Dong-Jin; Kim, Jae-Young; Kim, Jongsoo; Kim, Junhan; Kino, Motoki; Koay, Jun Yi; Kocherlakota, Prashant; Kofuji, Yutaro; Koch, Patrick M.; Koyama, Shoko; Kramer, Carsten; Kramer, Michael; Krichbaum, Thomas P.; Kuo, Cheng-Yu; La Bella, Noemi; Lauer, Tod R.; Lee, Sang-Sung; Leung, Po Kin; Levis, Aviad; Li, Zhiyuan; Lico, Rocco; Lindahl, Greg; Lindqvist, Michael; Lisakov, Mikhail; Liu, Jun; Liu, Kuo; Liuzzo, Elisabetta; Lo, Wen-Ping; Lobanov, Andrei P.; Loinard, Laurent; Lonsdale, Colin; Lu, Ru-Sen; Mao, Jirong; Markoff, Sera; Marscher, Alan P.; Matsushita, Satoki; Matthews, Lynn D.; Medeiros, Lia; Menten, Karl M.; Michalik, Daniel; Mizuno, Izumi; Mizuno, Yosuke; Moran, James M.; Moriyama, Kotaro; Mueller, Cornelia; Musoke, Gibwa; Myserlis, Ioannis; Nadolski, Andrew; Nagai, Hiroshi; Nagar, Neil M.; Nakamura, Masanori; Narayan, Ramesh; Narayanan, Gopal; Natarajan, Iniyan; Nathanail, Antonios; Fuentes, Santiago Navarro; Neri, Roberto; Ni, Chunchong; Noutsos, Aristeidis; Oh, Junghwan; Okino, Hiroki; Olivares, Hector; Ortiz-Leon, Gisela N.; Oyama, Tomoaki; Ozel, Feryal; Palumbo, Daniel C. M.; Paraschos, Georgios Filippos; Park, Jongho; Parsons, Harriet; Patel, Nimesh; Pen, Ue-Li; Pesce, Dominic W.; Pietu, Vincent; Plambeck, Richard; PopStefanija, Aleksandar; Porth, Oliver; Potzl, Felix M.; Prather, Ben; Preciado-Lopez, Jorge A.; Pu, Hung-Yi; Rao, Ramprasad; Rawlings, Mark G.; Raymond, Alexander W.; Rezzolla, Luciano; Ricarte, Angelo; Roelofs, Freek; Rogers, Alan; Ros, Eduardo; Romero-Cañizales, Cristina; Roshanineshat, Arash; Rottmann, Helge; Roy, Alan L.; Ruiz, Ignacio; Ruszczyk, Chet; Rygl, Kazi L. J.; Sanchez, Salvador; Sanchez-Arguelles, David; Sánchez-Portal, Miguel; Sasada, Mahito; Satapathy, Kaushik; Savolainen, Tuomas; Schloerb, F. Peter; Schuster, Karl-Friedrich; Shao, Lijing; Shen, Zhiqiang; Small, Des; Sohn, Bong Won; SooHoo, Jason; Souccar, Kamal; Sun, He; Tazaki, Fumie; Tilanus, Remo P. J; Titus, Michael; Torne, Pablo; Traianou, Efthalia; Trent, Tyler; Trippe, Sascha; Bemmel, Ilse van; Van Langevelde, Huib Jan; Van Rossum, Daniel R.; Vos, Jesse; Wagner, Jan; Ward-Thompson, Derek; Wardle, John; Weintroub, Jonathan; Wex, Norbert; Wharton, Robert; Wiik, Kaj; Wondrak, Michael F.; Wong, George N.; Wu, Qingwen; Yamaguchi, Paul; Yoon, Doosoo; Young, Andre; Young, Ken; Younsi, Ziri; Yuan, Feng; Yuan, Ye-Fei; Zensus, J. Anton; Zhang, Shuo; Zhao, Guang-Yao; Zhao, Shan-Shan (IOP Publishing, 2022-05)
    The Event Horizon Telescope (EHT) observed the compact radio source, Sagittarius A* (Sgr A*), in the Galactic Center on 2017 April 5–11 in the 1.3 mm wavelength band. At the same time, interferometric array data from the ...
  • Mind the gap : science and engineering education at the secondary-tertiary interface 
    Case, Jenni; Marshall, Delia; Grayson, Diane J. (AOSIS Open Journals, 2013-03-16)
    In the South African higher education sector, there is increasing concern about the poor retention and throughput rates of undergraduate students. There is also concern that the participation rates in higher education, ...
  • A model by which to estimate the volume of Nile crocodile eggs after they have hatched 
    Nothling, Johan Oliviette; Nothling, Johan Oliviette; Myburgh, Jan G. (AOSIS, 2019)
    The value of their leather stimulates commercial farming with several crocodilian species. The survival and growth of crocodile hatchlings depends on their birth mass. There exists a positive relationship between the ...
  • Modeling and verification of melanin concentration on human skin type 
    Karsten, Aletta Elizabeth; Smit, Jacoba Elizabeth (Wiley-Blackwell, 2012-03)
    Lasers are used in the minimalistic or non-invasive diagnosis and treatment of skin disorders. Less laser light reaches the deeper skin layers in dark skin types, due to its higher epidermal melanin concentration compared ...
  • Modeling and X-ray analysis of defect nanoclusters formation in B4C under ion irradiation 
    Mirzayev, Matlab N.; Donkov, Alexander A.; Popov, Evgeni A.; Demir, Ertugrul; Jabarov, Sakin H.; Chkhartishvili, Levan S.; Adeojo, S.A.; Doroshkevich, Aleksandr S.; Sidorin, Alexey A.; Asadov, Asif G.; Thabethe, Thabsile Theodora; Khandaker, Mayeen U.; Alamri, Sultan; Osman, Hamid; Trukhanov, Alex V.; Trukhanov, Sergei V. (MDPI, 2022-07-31)
    Please read abstract in the article.
  • Modification of the band offset in boronitrene 
    Obodo, K.O. (Kingsley Onyebuchi); Andrew, Richard Charles; Chetty, Nithaya (American Physical Society, 2011)
    Using density functional methods within the generalized gradient approximation implemented in the QUANTUM ESPRESSO codes, we modify the band offset in a single layer of boronitrene by substituting a double line of carbon ...
  • Modified annealing approach for preparing multi-layered hematite thin films for photoelectrochemical water splitting 
    Kyesmen, Pannan Isa; Nombona, Nolwazi; Diale, M. (Mmantsae Moche) (Elsevier, 2020-11)
    Please read abstract in the article.
  • A modified version of the Waxman algorithm 
    Berger, W.A.; Miller, H.G. (American Institute of Physics, 2007-05)
    The iterative algorithm recently proposed by Waxman for solving eigenvalue problems, which relies on the method of moments, has been modified to improve its convergence considerably without sacrificing its benefits or ...
  • Monitoring the morphology of M87* in 2009–2017 with the Event Horizon Telescope 
    Wielgus, Maciek; Akiyama, Kazunori; Blackburn, Lindy; Chan, Chi-kwan; Dexter, Jason; Doeleman, Sheperd S.; Fish, Vincent L.; Issaoun, Sara; Johnson, Michael D.; Krichbaum, Thomas P.; Lu, Ru-Sen; Pesce, Dominic W.; Wong, George N.; Bower, Geoffrey C.; Broderick, Avery E.; Chael, Andrew; Chatterjee, Koushik; Gammie, Charles F.; Georgiev, Boris; Hada, Kazuhiro; Loinard, Laurent; Markoff, Sera; Marrone, Daniel P.; Plambeck, Richard; Weintroub, Jonathan; Dexter, Matthew; MacMahon, David H.E.; Wright, Melvyn; Alberdi, Antxon; Alef, Walter; Asada, Keiichi; Azulay, Rebecca; Baczko, Anne-Kathrin; Ball, David; Balokovic, Mislav; Barausse, Enrico; Barrett, John; Bintley, Dan; Boland, Wilfred; Bouman, Katherine L.; Bremer, Michael; Brinkerink, Christiaan D.; Brissenden, Roger; Britzen, Silke; Broguiere, Dominique; Bronzwaer, Thomas; Byun, Do-Young; Carlstrom, John E.; Chatterjee, Shami; Chen, Ming-Tang; Chen, Yongjun; Cho, Ilje; Christian, Pierre; Conway, John E.; Cordes, James M.; Crew, Geoffrey B.; Cui, Yuzhu; Davelaar, Jordy; De Laurentis, Mariafelicia; Deane, Roger; Dempsey, Jessica; Desvignes, Gregory; Dzib, Sergio A.; Eatough, Ralph P.; Falcke, Heino; Fomalont, Ed; Fraga-Encinas, Raquel; Friberg, Per; Fromm., Christian M.; Galison, Peter; García, Roberto; Gentaz, Olivier; Goddi, Ciriaco; Gold, Roman; Gomez, José L.; Gomez-Ruiz, Arturo I.; Gu, Minfeng; Gurwell, Mark; Hecht, Michael H.; Hesper, Ronald; Ho, Luis C.; Ho, Paul; Honma, Mareki; Huang, Chih-Wei L.; Huang, Lei; Hughes, David H.; Inoue, Makoto; James, David J.; Jannuzi, Buell T.; Janssen, Michael; Jeter, Britton; Jiang, Wu; Jimenez-Rosales, Alejandra; Jorstad, Svetlana; Jung, Taehyun; Karami, Mansour; Karuppusamy, Ramesh; Kawashima, Tomohisa; Keating, Garrett K.; Kettenis, Mark; Kim, Jae-Young; Kim, Junhan; Kim, Jongsoo; Kino, Motoki; Koay, Jun Yi; Koch, Patrick M.; Koyama, Shoko; Kramer, Michael; Kramer, Carsten; Kuo, Cheng-Yu; Lauer, Tod R.; Lee, Sang-Sung; Li, Yan-Rong; Li, Zhiyuan; Lindqvist, Michael; Lico, Rocco; Liu, Kuo; Liuzzo, Elisabetta; Lo, Wen-Ping; Lobanov, Andrei P.; Lonsdale, Colin; MacDonald, Nicholas R.; Mao, Jirong; Marchili, Nicola; Marscher, Alan P.; Martí-Vidal, Ivan; Matsushita, Satoki; Matthews, Lynn D.; Medeiros, Lia; Menten, Karl M.; Mizuno, Yosuke; Mizuno, Izumi; Moran, James M.; Moriyama, Kotaro; Moscibrodzka, Monika; Müller, Cornelia; Musoke, Gibwa; Nagai, Hiroshi; Nagar, Neil M.; Nakamura, Masanori; Narayan, Ramesh; Narayanan, Gopal; Natarajan, Iniyan; Nathanail, Antonios; Ner, Roberto; Ni, Chunchong; Noutsos, Aristeidis; Okino, Hiroki; Olivares, Hector; Ortiz-Leon, Gisela N.; Oyama, Tomoaki; Özel, Feryal; Palumbo, Daniel C.M.; Park, Jongho.; Patel, Nimesh; Pen, Ue-Li; Piétu, Vincent; PopStefanija, Aleksandar; Porth., Oliver; Prather, Ben; Preciado-Lopez, Jorge A.; Psaltis, Dimitrios; Pu, Hung-Yi; Ramakrishnan, Venkatessh; Rao, Ramprasad; Rawlings, Mark G.; Raymond, Alexander W.; Rezzolla, Luciano; Ripperda, Bart; Roelofs, Freek; Rogers, Alan; Ros, Eduardo; Rose, Mel; Roshanineshat, Arash; Rottmann, Helge; Roy, Alan L.; Ruszczyk, Chet; Ryan, Benjamin R.; Rygl, Kazi L.J.; Sanchez, Salvador; Sanchez-Arguelles, David; Sasada, Mahito; Savolainen, Tuomas; Schloerb, F. Peter; Schuster, Karl-Friedrich; Shao, Lijing; Shen, Zhiqiang; Small, Des; Sohn, Bong Won; SooHoo, Jason; Tazaki, Fumie; Tiede, Paul; Tilanus, Remo P.J.; Titus, Michael; Toma, Kenji; Torne, Pablo; Trent, Tyler; Traianou, Efthalia; Trippe, Sascha; Tsuda, Shuichiro; Van Bemmel, Ilse; Van Langevelde, Huib Jan; Wagner, Jan; Wardle, John; Ward-Thompson, Derek; Wex, Norbert; Wharton, Robert; Wu, Qingwen; Yoon, Doosoo; Young, Andre; Young, Ken; Younsi, Ziri; Yuan, Feng; Yuan, Ye-Fei; Zensus, J. Anton; Zhao, Guangyao; Zhao, Shan-Shan; Zhu, Ziyan (IOP Publishing, 2020-09)
    The Event Horizon Telescope (EHT) has recently delivered the first resolved images of M87* , the supermassive black hole in the center of the M87 galaxy. These images were produced using 230 GHz observations performed ...
  • Mono-doped and co-doped nanostructured hematite for improved photoelectrochemical water splitting 
    Nyarige, Justine Sageka; Paradzah, Alexander Tapera; Kruger, T.P.J. (Tjaart); Diale, M. (Mmantsae Moche) (MDPI, 2022-01-24)
    In this study, zinc-doped (a-Fe2O3:Zn), silver-doped (a-Fe2O3:Ag) and zinc/silver codoped hematite (a-Fe2O3:Zn/Ag) nanostructures were synthesized by spray pyrolysis. The synthesized nanostructures were used as photoanodes ...