Power and Electrical Engineering

Scientists have been able to follow the flow of excitation energy in both time and space in a molecular complex using a new technique called two-dimensional electronic spectroscopy. While holding great promise for a broad range of applications, this technique has already been used to make a surprise finding about the process of photosynthesis. The technique was developed by a team of researchers with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and the Univ

University of California scientists at Los Alamos National Laboratory working with a researcher from Chonnam National University in South Korea have found that magnetic fluctuations appear to be responsible for superconductivity in a compound called plutonium-cobalt-pentagallium (PuCoGa5). The discovery of this “unconventional superconductivity” may lead scientists to a whole new class of superconducting materials and toward the goal of eventually synthesizing “room-temperature” superconductors.

As gasoline prices climb ever higher and the U.S. Senate backs oil drilling in Alaska’s Arctic National Wildlife Refuge, the possibility of a hydrogen economy — where drivers tank up on clean-burning hydrogen fuel — gleams more brightly. But two Northwestern University engineers stress the need to get more out of the fuel we are already using.

“A hydrogen economy is not a perfectly clean system,” said Scott A. Barnett, professor of materials science and engineering. “You

Grow grass, not for fun but for fuel. Burning grass for energy has been a well-accepted technology in Europe for decades. But not in the United States.

Yet burning grass pellets as a biofuel is economical, energy-efficient, environmentally friendly and sustainable, says a Cornell University forage crop expert.

This alternative fuel easily could be produced and pelleted by farmers and burned in modified stoves built to burn wood pellets or corn, says Jerry Cherney, the E.V.

Infrared Emitter From Heraeus Noblelight With Quartz Reflector

The benefits of infrared heating can also be enjoyed under vacuum. Heraeus Noblelight a company within the worldwide Heraeus precious metals and technology organisation, is showing infrared emitters for the semi-conductor sector at the Semicon Exhibition, which takes place in Munich from the 12th to 14th April. Thanks to a newly developed reflector, there have been significant improvements in heating processes carrie

Engineers and applied physicists have laid the foundations for a new type of “plug and play” laser — the Raman injection laser — and in the process, several key innovations in laser technology. The device combines the advantages of nonlinear optical devices and semiconductor injection lasers with a compact design, and may one day lead to wide-ranging applications in imaging and detection.

Published in the Feb. 24th issue of Nature, the proof of concept model was developed by Mari