ScienceDaily: Engineering and Construction News |
- 'Skin-like' device monitors cardiovascular and skin health
- Drivers, don't trade in your smartphone for Google Glass yet
- Nanotechnology leads to better, cheaper LEDs for phones and lighting
- 2-D materials' crystalline defects key to new properties
- New mobile solar unit is designed to save lives when the power goes out
- Taking advantage of graphene defects: Security screening
| 'Skin-like' device monitors cardiovascular and skin health Posted: 24 Sep 2014 12:39 PM PDT A new wearable medical device can quickly alert a person if they are having cardiovascular trouble or if it's simply time to put on some skin moisturizer, researchers report. The small device, approximately five centimeters square, can be placed directly on the skin and worn 24/7 for around-the-clock health monitoring. The wireless technology uses thousands of tiny liquid crystals on a flexible substrate to sense heat. When the device turns color, the wearer knows something is awry. |
| Drivers, don't trade in your smartphone for Google Glass yet Posted: 24 Sep 2014 10:49 AM PDT Texting while driving with Google Glass is clearly a distraction, a new study has concluded -- but there is a twist. In the study, texting Glass users outperformed smartphone users when regaining control of their vehicles after a traffic incident. |
| Nanotechnology leads to better, cheaper LEDs for phones and lighting Posted: 24 Sep 2014 08:35 AM PDT Using a new nanoscale structure, electrical engineers have increased the brightness and efficiency of LEDs made of organic materials -- flexible carbon-based sheets -- by 57 percent. The researchers also report their method should yield similar improvements in LEDs made in inorganic, silicon-based materials used most commonly today. |
| 2-D materials' crystalline defects key to new properties Posted: 24 Sep 2014 08:35 AM PDT Understanding how atoms 'glide' and 'climb' on the surface of 2-D crystals like tungsten disulphide may pave the way for researchers to develop materials with unusual or unique characteristics, according to an international team of researchers. |
| New mobile solar unit is designed to save lives when the power goes out Posted: 24 Sep 2014 08:29 AM PDT Brooke Ellison draws her own power from will, but the ventilator that keeps her alive requires uninterrupted electricity. Dr. Ellison is allowing scientists to field-test, at her home, the Nextek Power Systems STAR, a mobile solar generator. |
| Taking advantage of graphene defects: Security screening Posted: 24 Sep 2014 05:51 AM PDT Scientists have discovered a potential application for graphene in security screening. A new theoretical model estimates electric current rectification in graphene. Electronic transport in graphene contributes to its characteristics. Now, a Russian scientist proposes a new theoretical approach to describe graphene with defects-in the form of artificial triangular holes-resulting in the rectification of the electric current within the material. Specifically, the study provides an analytical and numerical theory of the so-called ratchet effect. |
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