ScienceDaily: Engineering and Construction News |
- Improved nanomaterials: Understanding surface structure of quantum dots will aid design of new solar devices
- Quantum mechanical calculations reveal the hidden states of enzyme active sites
- New technique allows ultrasound to penetrate bone, metal
- Scientists discover novel metamaterial properties within hexagonal boron nitride
- Versatile bonding for lightweight components
| Posted: 20 Nov 2014 12:39 PM PST A potential path to identify imperfections and improve the quality of nanomaterials for use in next-generation solar cells has just emerged.  |
| Quantum mechanical calculations reveal the hidden states of enzyme active sites Posted: 20 Nov 2014 10:34 AM PST Enzymes carry out fundamental biological processes such as photosynthesis, nitrogen fixation and respiration, with the help of clusters of metal atoms as 'active' sites. But scientists lack basic information about their function because the states thought to be critical to their chemical abilities cannot be experimentally observed. Now, researchers have reported the first direct observation of the electronic states of iron-sulfur clusters, common to many enzyme active sites.  |
| New technique allows ultrasound to penetrate bone, metal Posted: 20 Nov 2014 08:34 AM PST Researchers have developed a technique that allows ultrasound to penetrate bone or metal, using customized structures that offset the distortion usually caused by these so-called 'aberrating layers.'  |
| Scientists discover novel metamaterial properties within hexagonal boron nitride Posted: 20 Nov 2014 08:32 AM PST Researchers have demonstrated that confined surface phonon polaritons within hexagonal boron nitride exhibit unique metamaterial properties that enable novel nanoscale optical devices.  |
| Versatile bonding for lightweight components Posted: 20 Nov 2014 08:32 AM PST New materials are making cars, planes and all sorts of other things lighter. The catch is that many of these materials can't be welded. Now there's an alternative joining method available -- gradient adhesives provide an extremely good way of ensuring joined parts stay joined for their entire service life and hold up well in the event of a crash.  |
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