ScienceDaily: Engineering and Construction News |
- 3-D 'pop-up' silicon structures: Transforming planar materials into 3-D microarchitectures
- Emissions-free cars get closer
- Moving origami techniques forward for self-folding 3-D structures
- Quantum optical hard drive breakthrough
- Defying the Achilles heel of 'wonder material' graphene: Resilience to extreme conditions
- Magic numbers of quantum matter revealed by cold atoms
| 3-D 'pop-up' silicon structures: Transforming planar materials into 3-D microarchitectures Posted: 08 Jan 2015 11:47 AM PST Researchers have invented simple routes to complex classes of 3-D micro/nanostructures in high performance materials, with relevance to electronics, photovoltaics, batteries, biomedical devices, and other microsystems technologies.  |
| Emissions-free cars get closer Posted: 08 Jan 2015 09:59 AM PST Hydrogen fuel cells -- possibly the best option for emission-free vehicles -- require costly platinum. Nickel and other metals work but aren't nearly as efficient. New findings help pin down the basic mechanisms of the fuel-cell reaction on platinum, which will help researchers create alternative electrocatalysts.  |
| Moving origami techniques forward for self-folding 3-D structures Posted: 08 Jan 2015 08:37 AM PST Though the past 15 years have seen an exciting run of creative scientific advances in fabricating three-dimensional (3-D) structures by self-folding of 2-D sheets, the complexity of structures achieved to date falls far short of what can easily be folded by hand using paper, says a polymer scientist. Now he has developed an approach that could open the door to a new wave of discoveries.  |
| Quantum optical hard drive breakthrough Posted: 08 Jan 2015 07:06 AM PST Scientists developing a prototype optical quantum hard drive have improved storage time by a factor of over 100. The team's record storage time of six hours is a major step towards a secure worldwide data encryption network based on quantum information which could be used for banking transactions and personal emails.  |
| Defying the Achilles heel of 'wonder material' graphene: Resilience to extreme conditions Posted: 08 Jan 2015 05:48 AM PST A resilience to extreme conditions by the most transparent, lightweight and flexible material for conducting electricity could help revolutionize the electronic industry, according to a new study. Researchers have discovered that a material adapted from the 'wonder material' graphene can withstand prolonged exposure to both high temperature and humidity.  |
| Magic numbers of quantum matter revealed by cold atoms Posted: 08 Jan 2015 05:44 AM PST Topology, a branch of mathematics classifying geometric objects, has been exploited by physicists to predict and describe unusual quantum phases: the topological states of matter. These intriguing phases, generally accessible at very low temperature, exhibit unique conductivity properties which are particularly robust against external perturbations, suggesting promising technological applications. The great stability of topological states relies on a set of magic integers, the so-called Chern numbers, which remain immune to defects and deformations. For the first time scientists have succeeded in measuring the topological Chern number in a non-electronic system with high precision.  |
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