1.1 Definition and Properties Differential Geometry of 3D Surfaces Let us first recall briefly some results of differential geometry about surface curvatures (a good introduction to these notions can be found in [8] or in [20]). In this paper, we call a smooth surface a 3D surface that is...
Although ocean circulation isn't visible to the eye, it's one of the most important climate regulators on the planet, and it's vital for the survival of marine life. If you're looking for a surface current definition, it is any current that extends to a depth of about 400 meters. Sai...
Today, surfaces and interfaces are important in various fields, but there is a lack of consensus on their definition. The document emphasizes the need for scholars to consult with surface scientists when reporting surface science data to ensure accuracy and proper interpretation. It also suggests ...
In subject area: Materials Science X-ray photoelectric spectroscopy is a surface characterization technique sensible to different energy bonding between atoms, giving information of surface molecular species. From: Nanotechnology in Eco-efficient Construction (Second Edition), 2019 ...
- 《Current Biology》 被引量: 557发表: 1998年 The role of friction in the measurement of slipperiness, Part 1: friction mechanisms and definition of test conditions. Friction has been widely used as a measure of slipperiness. However, controversies around friction measurements remain. The purposes...
Precise control of building block sequence in copolymerization is a key issue in polymer science. On the one hand, the artificial realization of sequence-controlled polymerization, which is a coding mimicry of natural DNAs, RNAs and proteins, would greatly contribute to our understanding of the del...
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On the eve of these revolutionary measurements, we summarize the current understanding of the mineralogy of Venus. 2Theory 2.1NIR Emissivity Spectral windows permit the observation of Venus surface thermal emission through the cloud deck. Surface thermal emission has been detected in windows within the...
Progress in sustainability science: lessons learnt from current methodologies for sustainability assessment: Part 1 Purpose: Sustainability Science (SS) is considered an emerging discipline, applicative and solution-oriented whose aim is to handle environmental, social a... S Sala,F Farioli,A Zamagni ...
Left: To the definition of the deviation of two planes: Right: Developable surface approximating four planes. Developable surfaces with creases, e.g. models of crumpled paper, are discussed in [4],[48]. The dual representation of developable surfaces also appears in the computation of envelopes...