生来
发表于 2025-3-28 17:04:58
Robert G. Hunsperger Ph.D., die geforderten Mengen der einzelnen Sortimentsanteile zu bestimmten Terminen zu fertigen, so lassen sich in fast allen Fällen viele Möglichkeiten zur Erreichung dieses Ziels finden, zwischen denen eine Wahl getroffen werden muß. Diese Wahl darf nicht dem Zufall überlassen bleiben, sondern sollte
碳水化合物
发表于 2025-3-28 19:43:17
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HAWK
发表于 2025-3-29 00:04:08
, die geforderten Mengen der einzelnen Sortimentsanteile zu bestimmten Terminen zu fertigen, so lassen sich in fast allen Fällen viele Möglichkeiten zur Erreichung dieses Ziels finden, zwischen denen eine Wahl getroffen werden muß. Diese Wahl darf nicht dem Zufall überlassen bleiben, sondern sollte
HAWK
发表于 2025-3-29 04:55:06
Introduction,st ever since the early 1960’s, when the development of the laser first provided a stable source of coherent light for such applications. Laser beams can be transmitted through the air, but atmospheric variations cause undesirable changes in the optical characteristics of the path from day to day, a
gorgeous
发表于 2025-3-29 08:53:22
Optical Waveguide Modes,s in an electrical integrated circuit. However, unlike electrical current that flows through a metal strip according to Ohm’s law, optical waves travel in the waveguide in distinct optical modes. A mode, in this sense, is a spatial distribution of optical energy in one or more dimensions. In this ch
AXIS
发表于 2025-3-29 12:52:23
Theory of Optical Waveguides,comparison has been made between the physical-optic approach and the ray-optic approach in describing light propagation in a waveguide. In this chapter, the electromagnetic wave theory of the physical-optic approach is developed in detail. Emphasis is placed on the two basic waveguide geometries tha
Salivary-Gland
发表于 2025-3-29 16:45:32
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GEST
发表于 2025-3-29 20:12:33
Losses in Optical Waveguides, as to which modes propagate, the next most important characteristic of a waveguide is the attenuation, or loss, that a light wave experiences as it travels through the guide. This loss is generally attributable to three different mechanisms: scattering, absorption and radiation. Scattering loss usu
欢乐东方
发表于 2025-3-30 02:14:04
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sebaceous-gland
发表于 2025-3-30 07:33:33
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