玩笑 发表于 2025-3-25 06:07:51

Stress-Controlled Strength Distribution,Troll (1959) and other authors discuss the resemblance between wood and reinforced concrete. Figure 86 shows the underlying principle. Whereas reinforcing steel and cellulose are characterized by high tensile strength, concrete and lignin resist compression but cannot bear much tension.

monochromatic 发表于 2025-3-25 08:57:17

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overwrought 发表于 2025-3-25 13:49:22

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是剥皮 发表于 2025-3-25 17:05:32

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颂扬本人 发表于 2025-3-25 20:11:01

Book 1997d arguments are bold and cour­ ageous. They arouse our curiosity and force us to fathom the facts. It seems as if Kubler and Mattheck wanted to trick us into believing that trees only live and react following mechanical rules and strategies. To tell the truth, that was what I first suspected the aut

IRATE 发表于 2025-3-26 03:57:53

Claus Mattheck,Hans Kubler resistance in electrical circuits. The most important quantity to calculate is the power absorbed from the driving force by the oscillator. As a function of frequency, the power absorbed is a very characteristic ., or ., with a maximum at the frequency of the undamped oscillator. We shall finally l

Frequency-Range 发表于 2025-3-26 05:51:32

Claus Mattheck,Hans Kublereration and absorption are outlined. Conservation of various quantities of the wave field and convergence are discussed. Fully nonlinear computations of very large (rogue) wave events at sea, like the Camille and Drauper waves, are compared to laboratory measurements of the waves using Particle Imag

expound 发表于 2025-3-26 08:43:50

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Champion 发表于 2025-3-26 13:56:26

Claus Mattheck,Hans Kublerre of female life-chances. Following Turner (1984: 149–56), I want to argue that the term patriarchy is only relevant to conditions in early capitalism — the capitalism that advocated the medical practice of clitoridectomy as a ‘cure’ for female masturbation, and campaigned in favour of the overtly

subacute 发表于 2025-3-26 19:21:51

Claus Mattheck,Hans Kubleron without having genuine strategic reasons to justify their actions. The services gain tremendous influence by being permanent actors in this policy area, whereas political appointees come and go, and by controlling the detail of weapons development. Presidents are far less involved in weapon acqui
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查看完整版本: Titlebook: Wood - The Internal Optimization of Trees; Claus Mattheck,Hans Kubler Book 1997 Springer-Verlag Berlin Heidelberg 1997 Baum.Biomechanik.Fr