cushion 发表于 2025-3-26 22:19:54

W. Burchard- neither.‘similarity‘ nor ‘genealogical hypotheses of descent‘ are sufficient. Foundations of Systematics and Biogeography is an ideal volume for students, academics, researchers and professionals in the field978-1-4419-4445-0978-0-387-72730-1

ONYM 发表于 2025-3-27 01:18:47

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Talkative 发表于 2025-3-27 08:36:29

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Contort 发表于 2025-3-27 13:00:19

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陶器 发表于 2025-3-27 15:39:47

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小丑 发表于 2025-3-27 18:42:10

Determination of mechanical parameters related to the kinetics of swelling in an electrically activ thermally crosslinked polyacrylic acid (20% by weight) and polyvinylalcohol (80% by weight) (PAA-PVA) gel..Either thin films on spherical samples have been used in the experiments. The characteristic time of swelling in the case of a thin film has been found to be proportional to the square of a li

Buttress 发表于 2025-3-27 22:30:58

Dielectric and thermal relaxations in amorphous and semicrystalline poly(ethylene terephthalate), of the amorphous layer between neighboring lamellae. The fluctuation model proposed by Donth was used to estimate the size (1–3 nm) of the cooperative, rearranging regions connected with the glass transition in these samples. There occurs a hindrance of the cooperative motions due to the crystallin

adumbrate 发表于 2025-3-28 03:29:22

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不给啤 发表于 2025-3-28 06:14:36

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COMMA 发表于 2025-3-28 13:48:38

Dielectric relaxation processes in poly (epoxypropylcarbazole) layers,f complex dielectric constants were measured in the frequency range from 10 to 10. Hz at temperatures 273 to 420 K. The experimental results lead to the conclusion that near .. the observed relaxations are essentially associated with the cooperative nature of the carbazole units motions without the
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查看完整版本: Titlebook: Relationship of Polymeric Structure and Properties; I. Chudáček Conference proceedings 1988 Springer-Verlag Berlin Heidelberg 1988 polymer