Nonconformist 发表于 2025-3-25 04:42:57

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Glossy 发表于 2025-3-25 08:41:16

Hyperbolic problems,nother class of partial differential equations - the hyperbolic equations. We begin with the one-dimensional wave equation .. = a... which describes, among other processes, the transversal oscillations of a string.

粘连 发表于 2025-3-25 12:54:57

Parabolic problems, of parabolic type are often encountered in the study of heat conduction and diffusion processes. The simplest equation of parabolic type,. (where .. = const) is usually called the .; here .(.,.) is the temperature in the point with abscissa . at time ..

GROWL 发表于 2025-3-25 19:08:21

Assessment of Fracture Properties from P-Wave Velocity Distribution,t that the velocity is influenced on system of fractures. The fracture sets can cause velocity dispersion. The theory of displacement discontinuity was applied for an explanation of fractures influence on the seismic wave propagation. According to this theory, the fracture stiffness can be assessed

凶残 发表于 2025-3-25 20:27:49

»Die Imagination war die erste Philosophie der Nationen« -Giovanni Battista Vico und die Poesie der Geschichte Ereignis in der Geschichte eines modernen Poesiebegriffs. Zum ersten Mal hat Vico die in seiner Zeit unerhörte Frage gestellt, ob nicht Poesie ein Grundvermögen der Menschen sei, eine »facoltà poetica«, die nicht nur Spezialisten eigne und für einen besonderen Bereich des Wissens gelte, sondern uni

HAIRY 发表于 2025-3-26 01:51:31

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Conspiracy 发表于 2025-3-26 07:29:00

Book 2013zum Wasserkraftpotenzial in Europa, Deutschland, Österreich und der Schweiz dargestellt sowie über Entwicklungen und technische Besonderheiten berichtet. Beiträge über Projekte aus den Jahren 2010 - 2012 runden die Zusammenstellung ab. In diesem Rahmen wird gleichfalls der Konflikt Ausbau der regene

Grasping 发表于 2025-3-26 08:50:11

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chalice 发表于 2025-3-26 13:39:38

Cephalopod Biologyo the size of the hatchlings involved. Although cephalopod hatchlings are always actively foraging predators equipped with the organ systems typical of the adults, a combination of very small size and a pelagic lifestyle represents a challenge for their culture, particularly to satisfy their nutritional requirements.

淘气 发表于 2025-3-26 17:28:51

Reproductive and Developmental Manipulation of the Marsupial, the Tammar Wallaby ,,easonal control of its reproduction and embryonic diapause that normally lasts 11 months. Standard molecular techniques can be used for most manipulations in marsupials. However, there are several special techniques for treating the young for experimental surgery and for organ culture that we detail below.
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查看完整版本: Titlebook: Equations in Mathematical Physics; A practical course Victor P. Pikulin,Stanislav I. Pohozaev Book 2001 Springer Basel AG 2001 Partial diff