Results 21 to 30 of about 1,388,181 (313)

The BCS Energy Gap at High Density

Journal of Statistical Physics, 2022
AbstractWe study the BCS energy gap $$\Xi $$ Ξ in the high–density limit and derive an asymptotic formula, which strongly depends on the strength of the interaction potential V on the Fermi surface. In combination with the recent result by one of us (Math. Phys. Anal. Geom.
Joscha Henheik, Asbjørn Bækgaard Lauritsen   +1 more
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On the Representation of Effective Energy Densities [PDF]

ESAIM: Control, Optimisation and Calculus of Variations, 2000
The paper under review deals with a question raised in [\textit{R. Choksi} and \textit{I. Fonseca}, Arch. Ration. Mech. Anal. 138, No. 1, 37-103 (1997; Zbl 0891.73078)] on the representation of relaxed energies given as a sum of bulk and surface integrals. More precisely, given the functional \[ E(u)= \int_\Omega W(\nabla u) dx+ \int_{S_u} \phi([u],\nu)
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Sensitivity and effectivity of Kim’s novel electro-thermodynamic cycle over Olsen cycle on waste heat recovering with high fluctuating temperature source using lead-free pyroelectric Ba(Zr0.1Ti0.9)O3

AIP Advances, 2021
A novel electro-thermodynamic cycle with a higher waste heat recovery efficiency than the conventional Olsen cycle was introduced by Kim et al. in 2015. Thus, in the present study, the importance of the temperature factors was investigated, revealing the
Nguyen Chi Trung Ngo, Hironari Sugiyama, Buddhika Amila Kumara Sodige, Juan Paulo Wiff, Satoru Yamanaka, Yoonho Kim, Tsuneo Suzuki, Masaaki Baba, Masatoshi Takeda, Noboru Yamada, Koichi Niihara, Tadachika Nakayama   +11 more
doaj   +1 more source

Cosmological Evolution with Negative Energy Densities

Astrophysics, 2022
For general number of spatial dimensions we investigate the cosmological dynamics driven by a cosmological constant and by a source with barotropic equation of state. It is assumed that for both those sources the energy density can be either positive or negative. Exact solutions of the cosmological equations are provided for flat models.
Saharian, A. A., Avagyan, R. M., de Mello, E. R. Bezerra, Kotanjyan, V. Kh., Petrosyan, T. A., Babujyan, H. G.   +5 more
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Gradient design of metal hollow sphere (MHS) foams with density gradients [PDF]

, 2012
This is the post-print version of the final paper published in Composites Part B: Engineering. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural ...
Liu, Y, Bin Wang, Wu, H-X, Ying Liu, He-Xiang Wu, Wang, B   +5 more
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The effect of the plasma response on peeling–ballooning modes during edge localized modes mitigated by resonant magnetic perturbations

Nuclear Fusion, 2023
The effects of resonant magnetic perturbation (RMP) fields on peeling–ballooning (P–B) modes are studied with the experimental equilibria of EAST based on the four-field model in BOUT++ code.
L.K. Dong, S.Y. Chen, M.L. Mou, Y. Luo, C.C. Qin, C.J. Tang   +5 more
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Density of Lipschitz functions in energy

Calculus of Variations and Partial Differential Equations, 2022
AbstractIn this paper, we show that the density in energy of Lipschitz functions in a Sobolev space$$N^{1,p}(X)$$N1,p(X)holds for all$$p\in [1,\infty )$$p∈[1,∞)whenever the spaceXis complete and separable and the measure is Radon and positive and finite on balls. Emphatically,$$p=1$$p=1is allowed.
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Monitoring BaTiO3 sintering using nanosecond pulsed electric field

Science and Technology of Advanced Materials: Methods
Sintering is a critical process in ceramic fabrication, conducted in electric furnaces. However, the conditions within these furnaces remain largely unobservable, necessitating the development of real-time monitoring techniques.
Hiroyuki Saito, Hideto Fruno, Keisuke Nishida, Zhiming Shen, Wataru Mita, Yuya Takimoto, Tadachika Nakayama, Koichi Niihara   +7 more
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RELATIVISTIC NUCLEAR ENERGY DENSITY FUNCTIONALS [PDF]

International Journal of Modern Physics E, 2010
A class of relativistic nuclear energy density functionals is explored, in which only nucleon degrees of freedom are explicitly used in the construction of effective interaction terms. Short-distance correlations, as well as intermediate and long-range dynamics, are encoded in the nucleon-density dependence of the strength functionals of an effective ...
Vretenar, Dario, Nikšić, Tamara, Ring, Peter   +2 more
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Energy density of the glasma

Physics Letters B, 2006
6 pages, 5 figures, RevTeX, V2: minor clarifications, to be published in ...
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