Science | WPN World People News

This scanning electron microscope image shows vertical polythiophene nanofiber arrays grown on a metal substrate. The arrays contained either solid fibers or hollow tubes, depending on the diameter of the pores used to grow them.

The map shows increase in annual mean surface concentration of particulate matter resulting from ammonia emissions associated with food export. Populated states in the Northeast and Great Lakes region, where particulate matter formation is promoted by upwind ammonia sources, carry most of the cost.

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Artist’s impression of debris around a white dwarf star.

An image of an area of the Arctic sea ice pack well north of Alaska, captured by the MODIS instrument on NASA's Aqua satellite on Sept. 13, 2013, the day before the National Snow and Ice Data Center estimated Arctic sea ice to have reached its minimum extent for the year. A cloud front can be seen in the lower left, and dark areas indicate regions of open water between sea ice formations.

In Pylos an underwater telescope is being developed to help track neutrinos.

This is an image of the laboratory in which the research was conducted.

The $183,946 investment from Western Economic Diversification Canada (WD) will help Canada Research Chair in Nanoengineering Coating Technologies and Professor of Mechanical Engineering, Qiaoqin Yang, and her team purchase specially-made equipment that will apply the coatings to the surfaces of the components for testing and demonstration. Four industry-specific coating prototypes will be tested, for projects such as solar energy systems, artificial joints, and mining and oil sands equipment. The coatings will be comprised of new, extremely durable advanced materials.

Quality comparison of the 15 nanometres layers obtained by PAD (chemical deposition) or PLD (pulsed laser deposition).

These images show how the surface morphology and internal microstructure of an individual tin particle changes from the fresh state through the initial lithiation and delithiation cycle (charge/discharge). Most notable are the expansion in overall particle volume during lithiation, and reduction in volume and pulverization during delithiation. The cross-sectional images reveal that delithiation is incomplete, with the core of the particle retaining lithium surround by a layer of pure tin.