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[资源] 《Science》(化学、材料)连载----(18 July 2008)

MATERIALS SCIENCE: Tracking Corrosion Cracking
Andreas Stierle
Science 18 July 2008: 349-350.
The effects of both mechanical strain and oxidizing agents on grain boundaries in stainless steel can now be visualized.

High-Resolution Scanning X-ray Diffraction Microscopy
Pierre Thibault, Martin Dierolf, Andreas Menzel, Oliver Bunk, Christian David, and Franz Pfeiffer
Science 18 July 2008: 379-382.
Analysis of differences in diffraction patterns at each point along an x-ray scan of a material allows imaging of a buried structure with a resolution of 50 nanometers.

Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
Changgu Lee, Xiaoding Wei, Jeffrey W. Kysar, and James Hone
Science 18 July 2008: 385-388.
Measurements of the elastic properties of graphene agree with calculations for a defect-free material and show that it is indeed stronger than other materials.

Measurement of the Distribution of Site Enhancements in Surface-Enhanced Raman Scattering
Ying Fang, Nak-Hyun Seong, and Dana D. Dlott
Science 18 July 2008: 388-392.
Published online 26 June 2008 [DOI: 10.1126/science.1159499] (in Science Express Reports)
The distribution of electric field杄nhancing sites on a nanostructured substrate is measured by using the enhanced field to damage those sites.

Electronic Publication and the Narrowing of Science and Scholarship
James A. Evans
Science 18 July 2008: 395-399.
As journals become available electronically, scientists and scholars have more articles at their fingertips but cite relatively fewer, and these tend to be more recent.

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