منابع مشابه
The hydrodynamics of water-walking arthropods
We present the results of a combined experimental and theoretical investigation of the dynamics of water-walking insects and spiders. Using high-speed videography, we describe their numerous gaits, some analogous to those of their terrestrial counterparts, others specialized for life at the interface. The critical role of the rough surface of these water walkers in both floatation and propulsio...
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We develop a coherent view of the form and function of the integument of water-walking insects and spiders by reviewing biological work on the subject in light of recent advances in surface science. Particular attention is given to understanding the complex nature of the interaction between water-walking arthropods and the air–water surface. We begin with a discussion of the fundamental princip...
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Despite steady advances in the technology, desalination remains one of the most expensive ways to produce potable water. But as water scarcity forces communities to find new sources of drinking water, scientists are developing innovations that may soon make desalination a reasonable option for many more communities. The newest approach to desalination is membrane systems, which include reverse ...
متن کاملChapter 7 Fresh Water Coordinating
7.4 Consequences for Human Well-being of Changes in the Provision of Fresh Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 7.4.1 Freshwater Provision: Benefits and Investment Requirements 7.4.2 Consequences of Water Scarcity 7.4.3 The Cost and Pricing of Water Delivery 7.4.4 Consequences of Too Much Water: Floods 7.4.5 Consequences of Poor Water Quali...
متن کاملInvasive Fresh Water Snail, China
tion of anthrax vaccine virulence factors by polymerase chain reaction. Okinaka R, et al. Multiple -locus variable-number tandem repeat analysis reveals genetic relationships within Bacillus anthracis. Preliminary studies on recom-binant protective antigen (rPA) vaccine against anthrax for veterinary use. In: Ab-To the Editor: Pomacea canalic-ulata, an invasive freshwater snail native to South ...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1916
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.2.12.726