0261-3069/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.matdes.2010.08.008 ⇑ Corresponding author. Address: School of Mechan ing, Nanyang Technological University, 50 Nanyang Republic of Singapore. Tel.: +65 6790 5588; fax: +65 E-mail address: [email protected] (Z.W. Zhon In this study, a rapidly solidified aluminum alloy was compared with beryllium copper and 6061 aluminum alloys in ...

Magnetically soft amorphous glass-coated microwires are suitable for numerous sensor applications. Their typical dimensions – metallic nucleus diameter of 1 to 50 m and glass coating thickness of 1 to 30 m – make them promising candidates for high frequency applications, especially given their sensitive giant magneto-impedance (GMI) response in the MHz and GHz ranges (Torrejón et al, 2009). T...

For evaluating N(2) fixation of diazotrophic bacteria, nitrogen-poor liquid media supplemented with at least 0.5% sugar and 0.2% agar are widely used for acetylene reduction assays. In such a soft gel medium, however, many N(2)-fixing soil bacteria generally show only trace acetylene reduction activity. Here, we report that use of a N(2) fixation medium solidified with gellan gum instead of aga...

Surface translocation by the soil bacterium Myxococcus xanthus is a complex multicellular phenomenon that entails two motility systems. However, the mechanisms by which the activities of individual cells are coordinated to manifest this collective behaviour are currently unclear. Here we have developed a novel assay that enables detailed microscopic examination of M. xanthus motility at the int...

The method of fabricating metallic nanowires from directionally solidified eutectics was applied to the silver–copper system. The silver–copper lloy, 39.9 at.% copper, was directionally solidified in a Bridgman-type oven held at 850 ◦C. SEM imaging revealed a mixed fibrous and lamellar icrostructure. The fastest solidification rates produced fibres and lamellae with widths as small as 300 nm. E...

Linum usifafissimum protoplast-derived colonies that are cultured in auxin-supplemented medium and immobilized in Ca2+alginate matrix form round colonies that develop into polarized, embryo-like structures. On the other hand, protoplast-derived colonies that are immobilized i n agarose do not show an organized morphogenetic response, and unique, ionically bound cell-wall protein patterns match ...

Dictyostelium discoideum can be cloned in droplets of liquid medium by a method that permits observation of the complete life cycle. This alternative to solidified media provides advantages in clonal analysis.

Single basidiospores of Cronartium quercuum f. sp. fusajkme were cast from telia suspended over a solidified nutritional medium affixed to an operating orbital shaker. Spores thus mechanically dispersed and isolated, germinated to develop singlegenotype colonies.