Fiber-shaped supercapacitors are a desirable high-performance energy storage technology for wearable electronics. The traditional method for device fabrication is based on a multistep approach to construct energy devices, ...
Early populations shifted from quasi-egalitarian hunter-gatherer societies to communities governed by a centralized authority in the middle to late Holocene, but how the transition occurred still puzzles anthropologists. ...
Archaeology
Nov 30, 2020
3
466
The explosive growth of internet use leads to an explosion of the energy consumption of data centers. Vertical cavity surface emitting lasers (VCSELs) are key enabling devices meeting the requirements of optical interconnects ...
Optics & Photonics
Sep 24, 2020
0
10
Optical gain is a prerequisite for signal amplification in an optical amplifier or laser. It typically requires high levels of current injection in conventional semiconductors. By exploring an intricate balance and conversion ...
Optics & Photonics
Mar 20, 2020
0
4
In line with current international research about the interaction of matter with high energies, the University of Seville researcher Alfonso M. Gañán Calvo has studied the explosive behavior of matter subjected to the highest ...
General Physics
Dec 16, 2019
0
8
Lithium ion batteries aren't keeping up with energy demands from higher power electronic devices, electric vehicles and smart electric grids. To develop higher capacity batteries, researchers have looked to lithium sulfur ...
Materials Science
Sep 30, 2019
0
37
To generate renewable energy takes more space than one might think. New research by environmental scientist Paul Behrens and master's student John van Zalk shows how much space is needed for nine specific types of energy. ...
Energy & Green Tech
Aug 28, 2018
239
23
A team of Japanese researchers from Waseda University, Osaka University, and Shizuoka University designed and successfully developed a high-power, silicon-nanowire thermoelectric generator which, at a thermal difference of ...
Hardware
Jul 6, 2018
0
24
Russian researchers from the Moscow Institute of Physics and Technology (MIPT), the Technological Institute for Superhard and Novel Carbon Materials (TISNCM), and the National University of Science and Technology MISIS have ...
Energy & Green Tech
Jun 1, 2018
12
169
A new design of algae-powered fuel cells that is five times more efficient than existing plant and algal models, as well as being potentially more cost-effective to produce and practical to use, has been developed by researchers ...
Energy & Green Tech
Jan 10, 2018
1
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