Browsing Research Articles (Physics) by Title

Browsing Research Articles (Physics) by Title

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  • GASP XXVI. HI gas in jellyfish galaxies : the case of JO201 and JO206 
    Ramatsoku, Mpati; Serra, Paolo; Poggianti, B.M.; Moretti, A.; Gullieuszik, M.; Bettoni, D.; Deb, T.; Franchetto, A.; Van Gorkom, J.H.; Jaffe, Y.; Tonnesen, S.; Verheijen, M.A.; Vulcani, B.; Andati, L.A.L.; De Blok, E.; Jozsa, Gyula I.G.; Kamphuis, Peter.; Kleiner, Dane; Maccagni, Filippo M.; Makhathini, Sphesihle; Molnar, Daniel Cs.; Ramaila, A.J.T.; Smirnov, Oleg M.; Thorat, Kshitij (EDP Sciences, 2020-08)
    Please read abstract in the article.
  • GGA + U studies of the early actinide mononitrides and dinitrides 
    Obodo, K.O. (Kingsley Onyebuchi); Chetty, Nithaya (Elsevier, 2013)
    We present a detailed comparative study of the electronic and mechanical properties of the early actinide mononitrides and dinitrides within the framework of the Perdew–Burke–Ernzerhof generalized gradient approximation ...
  • Graphene foam–based electrochemical capacitors 
    Oyedotun, Kabir Oyeniran; Manyala, Ncholu I. (Elsevier, 2020-06)
    Electrochemical capacitors (ECs) are a promising technology for energy storage, and future development of sustainable electrode materials is critical to developing these devices. The recent progress and earnest motivation ...
  • Gravitational test beyond the first post-newtonian order with the shadow of the M87 black hole 
    Psaltis, Dimitrios; Medeiros, Lia; Christian, Pierre; Ozel, Feryal; Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Asada, Keiichi; Azulay, Rebecca; Ball, David; Balokovic, Mislav; Barrett, John; Bintley, Dan; Blackburn, Lindy; Boland, Wilfred; Bower, Geoffrey C.; Bremer, Michael; Brinkerink, Christiaan D.; Brissenden, Roger; Britzen, Silke; Broguiere, Dominique; Bronzwaer, Thomas; Byun, Do-Young; Carlstrom, John E.; Chael, Andrew; Chan, Chi-kwan; Chatterjee, Shami; Chatterjee, Koushik; Chen, Ming-Tang; Chen, Yongjun; Cho, Ilje; Conway, John E.; Cordes, James M.; Crew, Geoffrey B.; Cui, Yuzhu; Davelaar, Jordy; De Laurentis, Mariafelicia; Deane, Roger; Dempsey, Jessica; Desvignes, Gregory; Dexter, Jason; Eatough, Ralph P.; Falcke, Heino; Fish, Vincent L.; Fomalont, Ed; Fraga-Encinas, Raquel; Friberg, Per; Fromm, Christian M.; Gammie, Charles F.; García, Roberto; Gentaz, Olivier; Goddi, Ciriaco; Gomez, Jose L.; Gu, Minfeng; Gurwell, Mark; Hada, Kazuhiro; Hesper, Ronald; Ho, Luis C.; Ho, Paul; Honma, Mareki; Huang, Chih-Wei L.; Huang, Lei; Hughes, David H.; Inoue, Makoto; Issaoun, Sara; James, David J.; Jannuzi, Buell T.; Janssen, Michael; Jiang, Wu; Jimenez-Rosales, Alejandra; Johnson, Michael D.; 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; Krichbaum, Thomas P.; Kuo, Cheng-Yu; Lauer, Tod R.; Lee, Sang-Sung; Li, Yan-Rong; Li, Zhiyuan; Lindqvist, Michael; Lico, Rocco; Liu, Jun; Liu, Kuo; Liuzzo, Elisabetta; Lo, Wen-Ping; Lobanov, Andrei P.; Lonsdale, Colin; Lu, Ru-Sen; Mao, Jirong; Markoff, Sera; Marrone, Daniel P.; Marscher, Alan P.; Marti-Vidal, Ivan; Matsushita, Satoki; Mizuno, Yosuke; Mizuno, Izumi; Moran, James M.; Moriyama, Kotaro; Moscibrodzka, Monika; Muller, Cornelia; Musoke, Gibwa; Mus Mejias, Alejandro; Nagai, Hiroshi; Nagar, Neil M.; Narayan, Ramesh; Narayanan, Gopal; Natarajan, Iniyan; Neri, Roberto; Noutsos, Aristeidis; Okino, Hiroki; Olivares, Hector; Oyama, Tomoaki; Palumbo, Daniel C.M.; Park, Jongho; Patel, Nimesh; Pen, Ue-Li; Pietu, Vincent; Plambeck, Richard; PopStefanija, Aleksandar; Prather, Ben; Preciado-Lopez, Jorge A.; Ramakrishnan, Venkatessh; Rao, Ramprasad; Rawlings, Mark G.; Raymond, Alexander W.; 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; Tilanus, Remo P.J.; Titus, Michael; Torne, Pablo; Trent, Tyler; Traianou, Efthalia; Trippe, Sascha; Van Bemmel, Ilse; Van Langevelde, Huib Jan; Van Rossum, Daniel R.; Wagner, Jan; Wardle, John; Ward-Thompson, Derek; Weintroub, Jonathan; Wex, Norbert; Wharton, Robert; Wielgus, Maciek; Wong, George N.; Wu, Qingwen; Yoon, Doosoo; Young, Andre; Younsi, Ziri; Yuan, Feng; Yuan, Ye-Fei; Zhao, Shan-Shan (American Physical Society, 2020-10-01)
    The 2017 Event Horizon Telescope (EHT) observations of the central source in M87 have led to the first measurement of the size of a black-hole shadow. This observation offers a new and clean gravitational test of the ...
  • Green and scalable synthesis of 3D porous carbons microstructures as electrode materials for high rate capability supercapacitors 
    Bello, Abdulhakeem; Dangbegnon, Julien K.; Momodu, Damilola Y.; Ochai-Ejeh, F.O. (Faith); Oyedotun, Kabir Oyeniran; Manyala, Ncholu I. (Royal Society of Chemistry, 2018)
    Porous carbon nanostructures have long been studied because of their importance in many natural phenomena and their use in numerous applications. A more recent development is the ability to produce porous carbon materials ...
  • Gross features of finite nuclei at finite temperatures 
    Coelho, Sergio M.M.; Zander, Claudia; Miller, H.G. (Springer, 2010-03)
    A simple expression is obtained for the low-temperature behaviour of the energy and entropy of finite nuclei for 20 ≤ A ≤ 250. The dependence on A of these quantities is for the most part due to the presence of the asymmetry ...
  • Growth of graphene underlayers by chemical vapor deposition 
    Fabiane, Mopeli; Khamlich, Saleh; Bello, Abdulhakeem; Dangbegnon, Julien K.; Momodu, Damilola Y.; Johnson, Alan T. Charlie; Manyala, Ncholu I. (American Institute of Physics, 2013-11)
    We present a simple and very convincing approach to visualizing that subsequent layers of graphene grow between the existing monolayer graphene and the copper catalyst in chemical vapor deposition (CVD). Graphene samples ...
  • H I in and behind the Hubble Frontier Field clusters : a deep MeerKAT pilot search out to z similar to 0.5 
    Ranchod, Shilpa; Deane, Roger; Obreschkow, Danail; Blecher, Tariq; Heywood, Ian (Oxford University Press, 2022-02)
    Please read abstract in the article.
  • Half-metallic ferromagnetism in substitutionally doped boronitrene 
    Ukpong, Aniekan M.; Chetty, Nithaya (American Physical Society, 2012-11)
    We perform first principles molecular dynamics simulations to investigate the magnetoelectronic response of substitutionally-doped boronitrene to thermal excitation. We show that the local geometry, size and edge-termination ...
  • Heat treatment of glassy carbon implanted with cesium at room and high temperatures 
    Langa, Dolly Frans; Van der Berg, Nic (Nicolaas George); Friedland, Erich Karl Helmuth; Malherbe, Johan B.; Botha, A.J.; Chakraborty, P.; Wendler, E.; Wesch, W. (Elsevier, 2012-02-15)
    The effect of annealing temperature on the surface morphology and on the diffusion of cesium ions implanted into glassy carbon (Sigradur® G) is reported. The samples were implanted with 360 keV cesium ions to a fluence of ...
  • Helium and strontium co-implantation into SiC at room temperature and isochronal annealing : structural evolution of SiC and migration behaviour of strontium 
    Mokgadi, Thapelo Freddy; Abdalla, Zaki Adam Yousif; Abdelbagi, Hesham Abdelbagi Ali; Msimanga, Mandla; Maepa, Charity E.; Skuratov, Vladimir; Hlatshwayo, Thulani Thokozani (Elsevier, 2023-01)
    Understanding the structural evolution of SiC implanted with fission product surrogates in the presence of helium (He) is of importance for its application in both fission and fusion rectors. In this study, polycrystalline ...
  • High electrochemical performance of hierarchical porous activated carbon derived from lightweight cork (Quercus suber) 
    Ochai-Ejeh, F.O. (Faith); Bello, Abdulhakeem; Dangbegnon, Julien K.; Khaleed, Abubakar A.; Madito, M.J. (Moshawe); Bazegar, Farshad; Manyala, Ncholu I. (Springer, 2017-09)
    Activated carbon (AC) derived from biomass lightweight cork (Quercus suber) material was synthesized by KOH activation with different mass ratios of Q. suber: KOH in order to investigate the electrochemical properties of ...
  • High electrochemical performance of hybrid cobalt oxyhydroxide/nickel foam graphene 
    Masikhwa, T.M. (Tshifhiwa); Madito, M.J. (Moshawe); Momodu, Damilola Y.; Bello, Abdulhakeem; Dangbegnon, Julien K.; Manyala, Ncholu I. (Elsevier, 2016-12)
    In this study, we report the in-situ hydrothermal synthesis of mesoporous nanosheets of cobalt oxyhydroxide (CoOOH) on nickel foam graphene (Ni-FG) substrate, obtained via atmospheric pressure chemical vapour deposition ...
  • High energy and excellent stability asymmetric supercapacitor derived from sulphur-reduced graphene oxide/manganese dioxide composite and activated carbon from peanut shell 
    Tarimo, Delvina Japhet; Oyedotun, Kabir Oyeniran; Mirghni, Abdulmajid Abdallah; Sylla, Ndeye Fatou; Manyala, Ncholu I. (Elsevier, 2020-09)
    Please read abstract in the article.
  • A high energy density asymmetric supercapacitor utilizing a nickel phosphate/graphene foam composite as the cathode and carbonized iron cations adsorbed onto polyaniline as the anode 
    Mirghni, Abdulmajid Abdallah; Madito, M.J. (Moshawe); Oyedotun, Kabir Oyeniran; Masikhwa, T.M. (Tshifhiwa); Ndiaye, Ndeye Maty; Ray, Sekhar. J.; Manyala, Ncholu I. (Royal Society of Chemistry, 2018)
    This work presents the effect of different contents of graphene foam (GF) on the electrochemical capacitance of nickel phosphate Ni3(PO4)2 nano-rods as an electrode material for hybrid electrochemical energy storage ...
  • High performance asymmetric supercapacitor based on CoAl-LDH/GF and activated carbon from expanded graphite 
    Masikhwa, T.M. (Tshifhiwa); Madito, M.J. (Moshawe); Momodu, Damilola Y.; Dangbegnon, Julien K.; Guellati, Ouanassa; Harat, Aicha; Guerioune, Mohamed; Barzegar, Farshad; Manyala, Ncholu I. (Royal Society of Chemistry, 2016-05)
    An asymmetric supercapacitor fabricated with CoAl-layered double hydroxide/graphene foam (LDH/GF) composite as the positive electrode and activated carbon derived from expanded graphite (AEG) as negative electrode in ...
  • High performance hybrid supercapacitor device based on cobalt manganese layered double hydroxide and activated carbon derived from cork (Quercus Suber) 
    Ochai-Ejeh, F.O. (Faith); Madito, M.J. (Moshawe); Madito, M.J. (Moshawe); Khaleed, Abubakar A.; Olaniyan, Okikiola; Manyala, Ncholu I. (Elsevier, 2017-10)
    Thin Co-Mn layered double hydroxide (LDH) nanoflakes and Activated carbon (AC) from cork raw material (Quercus Suber) with highly porous structure and good textural properties was synthesized by a facile solvothermal and ...
  • High specific energy asymmetric supercapacitor based on alpha-manganese dioxide/activated expanded graphite composite and activated carbon-polyvinyl alcohol 
    Murovhi, Phathutshedzo; Tarimo, Delvina Japhet; Oyedotun, Kabir Oyeniran; Manyala, Ncholu I. (Elsevier, 2020-12)
    Please read abstract in the article.
  • High-performance asymmetric supercapacitor based on vanadium dioxide and carbonized iron-polyaniline electrodes 
    Ndiaye, Ndeye Maty; Madito, M.J. (Moshawe); Ngom, B.D.; Masikhwa, T.M. (Tshifhiwa); Mirghni, Abdulmajid Abdallah; Manyala, Ncholu I. (American Institute of Physics, 2019-05-10)
    Vanadium dioxide (VO2) monoclinic nanosheets were synthesized by a solvothermal method and carbonized iron-polyaniline (C-FP) nanograins were prepared by pyrolysis of iron-polyaniline (PANI) mixture under nitrogen ambient. ...
  • High-performance asymmetric supercapacitor based on vanadium dioxide/activated expanded graphite composite and carbon-vanadium oxynitride nanostructures 
    Ndiaye, Ndeye Maty; Sylla, Ndeye Fatou; Ngom, Balla Diop; Barzegar, Farshad; Momodu, Damilola Y.; Manyala, Ncholu I. (Elsevier, 2019-09)
    Please read abstract in the article.