Browsing Research Articles (Physics) by Title

Browsing Research Articles (Physics) by Title

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  • First Sagittarius A Event Horizon Telescope results. IV. Variability, morphology, and black hole mass 
    Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Algaba, Juan Carlos; Anantua, Richard; Asada, Keiichi; Azulay, Rebecca; Bach, Uwe; Baczko, Anne-Kathrin; Ball, David; Balokovic, Mislav; Barrett, John; Baubock, Michi; Benson, Bradford A.; Blackburn, Lindy; Blundell, Raymond; Bower, Geoffrey C.; 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; Chan, Chi-kwan; Chatterjee, Koushik; Chatterjee, Shamiuntranslated; Chen, Ming-Tang; Chen (陈永军), Yongjun; Cheng, Xiaopeng; 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 (IOP Publishing, 2022-05-10)
    Please read abstract in the article.
  • First Sagittarius A Event Horizon Telescope results. VI. Testing the black hole metric 
    Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Algaba, Juan Carlos; Anantua, Richard; Asada, Keiichi; Azulay, Rebecca; Bach, Uwe; Baczko, Anne-Kathrin; Ball, David; Balokovic, Mislav; Barrett, John; Baubock, Michi; Benson, Bradford A.; Bintley, Dan; Blackburn, Lindy; Blundell, Raymond; Bouman, Katherine L.; Bower, Geoffrey C.; 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; Chan, Chi-kwan; Chatterjee, Koushik; Chatterjee, Shami; Chen, Ming-Tang; Chen (陈永军), Yongjun; Cheng, Xiaopeng; 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 (IOP Publishing, 2022-05-10)
    Astrophysical black holes are expected to be described by the Kerr metric. This is the only stationary, vacuum, axisymmetric metric, without electromagnetic charge, that satisfies Einstein’s equations and does not ...
  • First-principles studies of chromium line-ordered alloys in a molybdenum disulfide monolayer 
    Andriambelaza, Noeliarinala Felana; Mapasha, Refilwe Edwin; Chetty, Nithaya (IOP Publishing, 2017-08)
    Density functional theory calculations have been performed to study the thermodynamic stability, structural and electronic properties of various chromium (Cr) line-ordered alloy configurations in a molybdenum disulfide ...
  • First-principles studies of SnS2, MoS2 and WS2 stacked van der Waals hetero-multilayers 
    Mabiala-Poaty, H.B.; Douma, D.H.; Malonda-Boungou, B.R.; Mapasha, Refilwe Edwin; M'Passi-Mabiala, B. (Elsevier, 2018-09)
    We present the energetics, structural and electronic properties of SnS2 monolayer stacked with MoS2 and WS2 monolayers making the van der Waals hetero-layers using the first-principles methods. The exchange-correlation ...
  • First-principles studies of Te line-ordered alloys in a MoS2 monolayer 
    Andriambelaza, Noeliarinala Felana; Mapasha, Refilwe Edwin; Chetty, Nithaya (Elsevier, 2018-04)
    The thermodynamic stability, structural and electronic properties of Te line-ordered alloys are investigated using density functional theory (DFT) methods. Thirty four possible Te line-ordered alloy configurations are found ...
  • First-principles study of the impact of hydrogen passivation on the charge state transition levels of the CiOi(Sii)n defect complexes in silicon 
    Abdurrazaq, Abdulgaffar; Raji, Abdulrafiu T.; Meyer, Walter Ernst (Springer, 2020-11)
    Please read abstract in the article.
  • 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 ...
  • Formation of chemical compound layer at the interface of initial substances A and B with dominance of diffusion of the A atoms 
    Selyshchev, Pavel; Akintunde, S.O. (Samuel) (World Academy of Science, Engineering and Technology, 2014)
    A theoretical approach to consider formation of chemical compound layer at the interface between initial substances A and B due to the interfacial interaction and diffusion is developed. It is considered situation when ...
  • Formation of color centers and concentration of defects in boron carbide irradiated at low gamma radiation doses 
    Mirzayev, Matlab Nabi; Mehdiyeva, Ravan Nadir; Melikova, Sevinj Zellabdin; Jabarov, Sakin Hamid; Thabethe, Thabsile Theodora; Biira, Saphina; Kurbanov, Mirze Abdulla; Tiep, Nguyen Van (Springer, 2019-02)
    Please read abstract in the article.
  • Free joinings of C-dynamical systems 
    Duvenhage, Rocco de Villiers (Elsevier, 2010-04)
    Joinings of C∗-dynamical systems are defined in terms of free products of C∗-algebras, as an analogue of joinings of classical dynamical systems. We then consider disjointness in this context, in particular for ergodic ...
  • From isolated light-harvesting complexes to the thylakoid membrane : a single-molecule perspective 
    Gruber, J. Michael; Maly, Pavel; Kruger, T.P.J. (Tjaart); Van Grondelle, Rienk (De Gruyter Open, 2018-01)
    The conversion of solar radiation to chemical energy in plants and green algae takes place in the thylakoid membrane. This amphiphilic environment hosts a complex arrangement of light-harvesting pigment-protein complexes ...
  • A functional compartmental model of the synechocystis PCC 6803 phycobilisome 
    Van Stokkum, Ivo H.M.; Gwizdala, Michal; Tian, Lijin; Snellenburg, Joris J.; Van Grondelle, Rienk; Van Amerongen, Herbert; Berera, Rudi (Springer, 2018-03)
    In the light-harvesting antenna of the Synechocystis PCC 6803 phycobilisome (PB), the core consists of three cylinders, each composed of four disks, whereas each of the six rods consists of up to three hexamers (Arteni et ...
  • Functionalized graphene foam as electrode for improved electrochemical storage 
    Bello, Abdulhakeem; Fabiane, Mopeli; Momodu, Damilola Y.; Khamlich, Saleh; Dangbegnon, Julien K.; Manyala, Ncholu I. (Springer, 2014-09)
    We report on a non-covalent functionalization of graphene foam (GF) synthesized via chemical vapour deposition (CVD). The GF was treated with pyrene carboxylic acid (PCA) which acted as a source of oxygen and/or ...
  • The future of quantum biology 
    Marais, Adriana; Adams, Betony; Ringsmuth, Andrew K.; Ferretti, Marco; Gruber, J. Michael; Hendrikx, Ruud; Schuld, Maria; Smith, Samuel L.; Sinayskiy, Ilya; Kruger, T.P.J. (Tjaart); Petruccione, Francesco; Van Grondelle, Rienk (Royal Society, 2018-11)
    Biological systems are dynamical, constantly exchanging energy and matter with the environment in order to maintain the non-equilibrium state synonymous with living. Developments in observational techniques have allowed ...
  • 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 ...