Nmda-Receptor
发表于 2025-3-23 10:14:03
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animated
发表于 2025-3-23 13:52:28
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foppish
发表于 2025-3-23 20:41:23
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ENACT
发表于 2025-3-24 00:13:55
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ablate
发表于 2025-3-24 02:29:33
Bracing: Ultra-Light but Highly Specialized,One might criticize the author for introducing this stage of biological light-weight construction with an observation that smacks of a truism. It is, however, necessary to make things digestible for the reader who is less familiar with the theory of the stability of kinking rods.
Anthology
发表于 2025-3-24 06:58:31
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节约
发表于 2025-3-24 11:07:13
Der Unterschied. Der Eine Umgebung Schafft idea here is to use more material (thicker walls etc.) so as to keep the stress, σ., acting far away from the notch, at such a low value that the maximum stress σ.. = F ·σ. caused by the notch is still small enough to exclude crack formation. There is little expertise in such a procedure as the com
certitude
发表于 2025-3-24 18:08:23
https://doi.org/10.1007/978-3-322-95492-3here will certainly be hardly any real doubt that it does make sense to avoid both weak places and superfluous material, which in the final analysis is just what this uniformity of stress means. In Fig. 12 we have also seen that a notch does not always necessarily cause high notch stresses; its shap
Accolade
发表于 2025-3-24 22:16:27
https://doi.org/10.1007/978-3-322-95492-3 is because they are particularly important. We shall also soon see that the effects of apical dominance and phototropism may even involve mechanical disadvantages for the tree, but are nevertheless necessary for its survival.
薄荷醇
发表于 2025-3-25 02:33:55
Die Quantenmechanik und ihre Deutungen,cal significance. And yet this tapering of the trunk is probably the simplest and most obvious kind of component optimization which our instructor, the tree, can reveal. As the main loading of the tree is the wind load, acting transversely to the trunk and inducing a bending moment (Fig. 36), it is