不理会 发表于 2025-3-27 00:21:58

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事与愿违 发表于 2025-3-27 04:23:28

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Ingratiate 发表于 2025-3-27 06:04:28

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Immobilize 发表于 2025-3-27 10:56:19

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幻想 发表于 2025-3-27 14:30:57

The Two-Centre Dirac Equation,tains the theoretical understanding of the phenomenon of chemical binding and thus is connects physics and chemistry. In 1927 W. Heitler and F. London. showed for the first time the possibility of the existence of the H. molecule. They used an approximation procedure and were able to calculate its p

消息灵通 发表于 2025-3-27 20:08:37

,The Foldy—Wouthuysen Representation for Free Particles, to positive (negative) energy states, the upper (lower) two components beecome large compared to the lower (uppeer) two components . The question arises, whether there exists a representation that reflects this property as a general feature, i.e. also for large velocities of the

Fraudulent 发表于 2025-3-27 22:23:34

The Hole Theory,e Klein—Gordon equation, where the energy turned out to be positive (by the Lagrange formalism) for solutions with positive and negative time evolution factors, proved unsuccessful (cf. Exercise 2.3). Solutions with negative energy appear almost everywhere when we are concerned with processes of hig

labyrinth 发表于 2025-3-28 02:10:34

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记忆法 发表于 2025-3-28 09:21:07

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Diuretic 发表于 2025-3-28 13:50:08

method) and XFEM (extended finite element method). In the DEM, particles are bonded together at contact points and are separated by external forces. Two homogenous and heterogeneous discrete element models have been generally developed to model crack growth behavior of asphalt concretes. In the homo
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查看完整版本: Titlebook: Relativistic Quantum Mechanics; Wave Equations Walter Greiner Textbook 19972nd edition Springer-Verlag Berlin Heidelberg 1997 Dirac equatio