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发表于 2025-3-23 11:29:07
M. V. Klassen-Neklyudova The study found that online lectures in Nigeria during the COVID-19 pandemic were not effective as imagined; and therefore physical classes were preferred to online lectures. Online lectures were marred with many challenges like unreliable power supply, fluctuating internet and many others. Besides
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发表于 2025-3-23 15:44:21
M. V. Klassen-Neklyudovaience gives new perspectives to the online education in the University of Ruse “Angel Kanchev”..The aim of this chapter is to present part of the educational experience of the Faculty of Business and Management at the University of Ruse “Angel Kanchev” (Bulgaria) in teaching the subject of intergene
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发表于 2025-3-23 19:40:00
M. V. Klassen-Neklyudovabounded domains with state-constraints. In particular, the use of stratified solutions to treat problems with boundary conditions, where both the boundary may be non-smooth and the data may present discontinuities, is developed. Many applications to concrete problems are explored throughout the text
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发表于 2025-3-24 00:12:13
bounded domains with state-constraints. In particular, the use of stratified solutions to treat problems with boundary conditions, where both the boundary may be non-smooth and the data may present discontinuities, is developed. Many applications to concrete problems are explored throughout the text
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发表于 2025-3-24 04:03:53
Introductiontions when the external force is removed, the displacement being proportional to the stress. Apart from this proportional change (Hooke’s law), real crystals show nonlinear but reversible changes at fairly low stresses. This imperfect elasticity causes delay in the strain corresponding to a changed
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发表于 2025-3-24 09:06:51
Twinning with Change of Formhe displacement of cards in a pack. This division into macroscopic layers occurs in tension (Fig. 1) and also in response to compression, bending, torsion, and shear. This type of slip always occurs within the grains in a plastically deformed technical metal, rock, or other polycrystalline materia
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Twinning without Change of Form of symmetry; two varieties of quartz crystal (right-and left-handed) occur in nature (Fig. 111, a and b). Quartz forms twins in accordance with the Dauphiné, Brazilian, and Japanese laws, and also Leydolt twins.
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Macroscopic Theory of Twinningading rate or to the temperature, which gave one reason to hope that twinning can be treated as a static problem corresponding to minimum potential energy. However, the problem cannot be solved generally within the framework of the macroscopic theory of elasticity; further simplifications are needed
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发表于 2025-3-25 03:13:00
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