Zobrazeno 1 - 10
of 3 709
pro vyhledávání: '"rate equations"'
Autor:
Claudio Giorgi, Angelo Morro
Publikováno v:
Thermo, Vol 4, Iss 2, Pp 273-294 (2024)
The paper revisits the formulation of the second law in continuum physics and investigates new methods of exploitation. Both the entropy flux and the entropy production are taken to be expressed by constitutive equations. In three-dimensional setting
Externí odkaz:
https://doaj.org/article/8e573cb551aa4ee09d4ee5a2c25d8e22
Autor:
Martino D'Alessandro, Valerio Torrelli, Francesco Bertazzi, Michele Goano, Nikolay N. Ledentsov, Markus Lindemann, Mariangela Gioannini, Pierluigi Debernardi, Alberto Tibaldi
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 2, Pp 1-7 (2024)
In this work we investigate the ultrabroadband dynamics of transverse coupled cavity VCSELs. This study is based on a multimode rate equation model, whose parameters are directly provided by a full-wave vectorial electromagnetic solver. This approach
Externí odkaz:
https://doaj.org/article/7c0c403be8544214bc4630af2338497e
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 2, Pp 1-8 (2024)
Existing high-power semiconductor lasers widely use asymmetric large cavity structures or designs with short cavity lengths to enhance device performance, inevitably increasing the device threshold current density and suppressing further improvement
Externí odkaz:
https://doaj.org/article/ceb4378f606b4592bd1c92b558881e52
Autor:
Chao Han, Hongwei Chu, Tianli Feng, Shengzhi Zhao, Dechun Li, Han Zhang, Jia Zhao, Weiping Huang
Publikováno v:
Nanomaterials, Vol 14, Iss 18, p 1491 (2024)
The synthesis of 2D MoWS2 nanosheets involved the liquid-phase exfoliation technique was explored in this paper. The nonlinear optical response of MoWS2 was characterized in the 1 µm wavelength range, and its suitability as a saturable absorber (SA)
Externí odkaz:
https://doaj.org/article/10fcf2593bf8476fafb2c6072e3cbfe8
Publikováno v:
Photonics, Vol 11, Iss 9, p 881 (2024)
In the study of dynamic behaviors, such as nonlinear effects, power evolution, and pulse evolution of light in fiber gain media, solving dynamic rate equations in fiber laser systems is involved, which is computationally intensive and directly affect
Externí odkaz:
https://doaj.org/article/1d77445e26d04f078243a201d15438e3
Publikováno v:
Results in Physics, Vol 58, Iss , Pp 107480- (2024)
X-ray irradiating rare-earth nanoparticles could emit fluorescence (∼50 keV) and luminescence (∼eV) photons simultaneously. Utilizing this phenomenon, it is expected to achieve online multi-modal imaging and integrated radiation and photodynamic
Externí odkaz:
https://doaj.org/article/84e507b215bb448aba07b31b6d6d755a
Autor:
Andrea Cannizzo, Stefano Giordano
Publikováno v:
Symmetry, Vol 16, Iss 5, p 632 (2024)
Systems with a multistable energy landscape are widespread in physics, biophysics, technology, and materials science. They are strongly influenced by thermal fluctuations and external mechanical actions that can be applied at different rates, moving
Externí odkaz:
https://doaj.org/article/844c87f6ea7641c7bb04fdb24b4cf5ad
Autor:
Vyacheslav I. Yukalov
Publikováno v:
Physics, Vol 5, Iss 3, Pp 704-751 (2023)
This paper is devoted to nonequilibrium systems in the physics approach to social systems. Equilibrium systems have been considered in the recenly published first part of the review. The style of the paper combines the features of a tutorial and a re
Externí odkaz:
https://doaj.org/article/11419205283045fda34c87eb5a2b93bb
Autor:
Angelo Morro, Claudio Giorgi
Publikováno v:
Thermo, Vol 3, Iss 2, Pp 260-276 (2023)
The paper investigates the techniques associated with the exploitation of the second law of thermodynamics as a restriction on the physically admissible processes. Though the exploitation consists of the use of the arbitrariness occurring in the Clau
Externí odkaz:
https://doaj.org/article/431245a406194f2fa6e453e20edade4c
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 272, Iss 2, p 34 (2024)
A novel methodology is developed to extract accurate skeletal reaction models for nuclear combustion. Local sensitivities of isotope mass fractions with respect to reaction rates are modeled based on the forced optimally time-dependent (f-OTD) scheme
Externí odkaz:
https://doaj.org/article/bce07243777d40b798c6ed706083409b