Results 41 to 50 of about 1,482,446 (314)

Temperature-Dependent Exciton Dynamics in a Single GaAs Quantum Ring and a Quantum Dot

Nanomaterials, 2022
Micro-photoluminescence was observed while increasing the excitation power in a single GaAs quantum ring (QR) at 4 K. Fine structures at the energy levels of the ground (N = 1) and excited (N = 2) state excitons exhibited a blue shift when excitation ...
Heedae Kim, Jong Su Kim, Jin Dong Song
doaj   +1 more source

Transcranial magnetic stimulation: asymmetrical excitability and depression [PDF]

British Journal of Psychiatry, 2000
Maeda et al ([2000][1]) have succeeded in demonstrating the interhemispheric asymmetry of motor cortical excitability in major depression, using transcranial magnetic stimulation (TMS). This is an important finding that raises questions not only about the pathophysiology of major depression ...
openaire   +1 more source

Excitation of Asymmetric Resonance with Symmetric Split-Ring Resonator

Materials, 2022
In this paper, a new approach to excite sharp asymmetric resonances using a single completely symmetric split-ring resonator (SRR) inside a rectangular waveguide is proposed. The method is based on an asymmetry in the excitation of a symmetric split-ring resonator by placing it away from the center of the waveguide along its horizontal axis. In turn, a
Ibraheem Al-Naib, Ijlal Shahrukh Ateeq
openaire   +2 more sources

Isoscaling in Peripheral Nuclear Collisions around the Fermi Energy and a Signal of Chemical Separation from its Excitation Energy Dependence [PDF]

, 2004
The isoscaling is investigated using the fragment yield data from fully reconstructed quasi-projectiles observed in peripheral collisions of 28Si with 124,112Sn at projectile energies 30 and 50 MeV/nucleon.
G. A. Souliotis, G. A. Souliotis, M. Veselsky, S. Albergo, S. J. Yennello   +4 more
core   +2 more sources

Dynamical Dipole mode in heavy-ion fusion reactions

EPJ Web of Conferences, 2017
The excitation of the Dynamical Dipole mode along the fusion path was investigated for the first time in the formation of a heavy compound nucleus in the A~190 mass region.
Parascandolo C., Pierroutsakou D., Alba R., Del Zoppo A., Maiolino C., Santonocito D., Agodi C., Baran V., Boiano A., Colonna M., Coniglione R., De Filippo E., Di Toro M., Emanuele U., Farinon F., Guglielmetti A., La Commara M., Martin B., Mazzocchi C., Mazzocco M., Rizzo C., Romoli M., Signorini C., Silvestri R., Soramel F., Strano E., Torresi D., Trifirò A., Trimarchi M.   +28 more
doaj   +1 more source

Ground-State Phase Diagram of the XXZ Model on a Railroad-Trestle Lattice with Asymmetric Leg Interactions

, 2006
Using the bosonization and level spectroscopy methods, we study the ground-state phase diagram of a XXZ antiferromagnet on a railroad-trestle lattice with asymmetric leg interactions.
Blundell S. A., Capriotti L., Chen S., Haldane F. D. M., Hirata S., Kubo K., Majumdar C. K., Majumdar C. K., Nakano T., Nakano T., Nomura K., Nomura K., Nomura K., Okamoto K., Otsuka H., Sarkar S., Sen D., Shastry B. S., Tonegawa T.   +18 more
core   +1 more source

Molecular asymmetry of a photosynthetic supercomplex from green sulfur bacteria

Nature Communications, 2022
Cryo-EM reveals an asymmetric bacterial photosynthetic supercomplex built upon a homodimeric reaction center core. The structure provides mechanistic insights into light excitation transfer and a possible evolutionary transition intermediate of ...
Ryan Puskar, Chloe Du Truong, Kyle Swain, Saborni Chowdhury, Ka-Yi Chan, Shan Li, Kai-Wen Cheng, Ting Yu Wang, Yu-Ping Poh, Yuval Mazor, Haijun Liu, Tsui-Fen Chou, Brent L. Nannenga, Po-Lin Chiu   +13 more
doaj   +1 more source

Two-Photon Excitation of Asymmetric GaN/AlGaN Quantum Discs [PDF]

AIP Conference Proceedings, 2007
By using two‐photon absorption spectroscopy we have performed time‐integrated and time‐resolved photoluminescence measurements on several coupled asymmetric GaN quantum discs, with embedded AlGaN barriers. We observe free‐carrier screening, with an enhancement due to tunneling between the coupled quantum discs.
Lee, K, Na, J, Birner, S, Yi, SN, Taylor, R, Park, Y, Park, C, Kang, T   +7 more
openaire   +2 more sources

Excitation energy dependence of fragment-mass distributions from fission of 180,190Hg formed in fusion reactions of 36Ar + 144,154Sm

Physics Letters B, 2015
Mass distributions of fission fragments from the compound nuclei 180Hg and 190Hg formed in fusion reactions 36Ar + 144Sm and 36Ar + 154Sm, respectively, were measured at initial excitation energies of E⁎(Hg180)=33–66 MeV and E⁎(Hg190)=48–71 MeV.
K. Nishio, A.N. Andreyev, R. Chapman, X. Derkx, Ch.E. Düllmann, L. Ghys, F.P. Heßberger, K. Hirose, H. Ikezoe, J. Khuyagbaatar, B. Kindler, B. Lommel, H. Makii, I. Nishinaka, T. Ohtsuki, S.D. Pain, R. Sagaidak, I. Tsekhanovich, M. Venhart, Y. Wakabayashi, S. Yan   +20 more
doaj   +1 more source

Analysis of Dynamical Characteristic of Piecewise-Nonlinear Asymmetric Hysteretic System Based on Incremental Harmonic Balance Method

Discrete Dynamics in Nature and Society, 2015
Considering a sort of elastic mass with asymmetric hysteresis characteristic which widespread existing in engineering field, a piecewise-nonlinear dynamical equation, which contains asymmetric hysteretic loop, is established.
H. R. Liu, J. Z. Li, D. X. Hou, R. R. Yin, J. S. Jiang   +4 more
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