Tech

Noble way to low-cost fuel cells, halogenated graphene may replace expensive platinum

Ulsan, South Korea– The research team of Ulsan National Institute of Science and Technology (UNIST), Case Western Reserve University and University of North Texas have paved a new way for affordable commercialization of fuel cells with efficient metal-free electrocatalysts using edge-halogenated graphene nanoplatelets.

Fuel cell technology has come a long way since the early days in the Apollo space program. Certainly the idea of running a car on pure hydrogen is an exciting prospect as the only emissions will be pure water.

Laser-brightened cirrus clouds change the weather

Can cloud formation, precipitation or thunderstorms be influenced by laser light irradiation? This issue has been investigated by researchers from KIT's Institute for Meteorology and Climate Research – Atmospheric Aerosol Research (IMK-AAF), Freie Universität Berlin, and the University of Geneva. The objective of the studies conducted by head of IMK-AAF Professor Thomas Leisner was to find out whether and in how far laser light and plasma can influence cloud formation.

Metal-free catalyst outperforms platinum in fuel cell

Researchers from South Korea, Case Western Reserve University and University of North Texas have discovered an inexpensive and easily produced catalyst that performs better than platinum in oxygen-reduction reactions.

The finding, detailed in Nature's Scientific Reports online today, is a step toward eliminating what industry regards as the largest obstacle to large-scale commercialization of fuel cell technology.

NJIT professor uses Petri nets to solve automation problems in manufacturing in IEEE journal

An expert in robotics and automation problems, especially those involving manufacturing systems, NJIT Distinguished Professor and IEEE Fellow Mengchu Zhou will have two articles published in the upcoming proceedings of the 2013 IEEE International Conference on Robotics and Automation. Both papers were recently presented at this conference.

Peer pressure tests grade schoolers -- not just adolescents: Research

COLLEGE PARK, Md. – Peer group influences affect children much earlier than researchers have suspected, finds a new University of Maryland-led study. The researchers say the study provides a wake-up call to parents and educators to look out for undue group influences, cliquishness and biases that might set in early, the researchers say.

Discovering 1 reason why swarming evolved offers tantalizing clues on how intelligence developed

All the study's authors are members of the BEACON Center for the Study of Evolution in Action, a National Science Foundation Center that brings together biologists, computer scientists, engineers and researchers from other disciplines to study evolution as it happens.

Studying swarming and unlocking the secrets of why it evolved is a small first step toward understanding how human-level intelligence evolved in nature, a research goal of the team.

Roman seawater concrete holds the secret to cutting carbon emissions

The chemical secrets of a concrete Roman breakwater that has spent the last 2,000 years submerged in the Mediterranean Sea have been uncovered by an international team of researchers led by Paulo Monteiro of the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab), a professor of civil and environmental engineering at the University of California, Berkeley.

Los Alamos catalyst could jump-start e-cars, green energy

LOS ALAMOS, New Mexico, June 4, 2013—Los Alamos National Laboratory scientists have designed a new type of nanostructured-carbon-based catalyst that could pave the way for reliable, economical next-generation batteries and alkaline fuel cells, providing for practical use of wind- and solar-powered electricity, as well as enhanced hybrid electric vehicles.

Chip harnesses mysterious Casimir effect force

A research team that includes scientists at Oak Ridge National Laboratory has for the first time demonstrated a compact integrated silicon chip that harnesses the power of the Casimir effect.

This puzzling force, first measured more than a decade ago, is thought to cause objects to stick together at a very small scale, but its behavior is not fully understood because of difficulties in measuring the effect experimentally.

Bringing cheaper, 'greener' lighting to market with inkjet-printed hybrid quantum dot LEDs

WASHINGTON, June 4, 2013—It's not easy going green. For home lighting applications, organic light emitting diodes (OLEDs) hold the promise of being both environmentally friendly and versatile. Though not as efficient as regular light-emitting diodes (LEDs), they offer a wider range of material choices and are more energy efficient than traditional lights. OLEDs can also be applied to flexible surfaces, which may lead to lights or television displays that can be rolled up and stowed in a pocket.

Behold the 9-day fresh strawberry: New approach to slowing rot doubles berry shelf life

WASHINGTON, June 4, 2013—Strawberry lovers rejoice: the days of unpacking your luscious berries from the refrigerator only to find them sprouting wispy goatees of mold may be numbered. A research team from the U.S. Department of Agriculture's (USDA) Food Components and Health Laboratory in Beltsville, Md., and Sensor Electronic Technology, Inc. (SETi) in Columbia, S.C., has demonstrated that low irradiance ultra-violet (UV) light directed at strawberries over long exposure periods at low temperature and very high humidity—typical home refrigerator conditions—delays spoilage.

Microbubbles point the way to a revolution in food processing

Researchers at the University of Sheffield have found a more efficient way to dry products for food manufacture, using tiny, hot bubbles.

Instead of boiling a product to evaporate water - the most common technique used by industry - the Sheffield team injected hot microbubbles through the liquid, causing the water to evaporate without boiling.

Stanford scientists create novel silicon electrodes that improve lithium-ion batteries

Stanford University scientists have dramatically improved the performance of lithium-ion batteries by creating novel electrodes made of silicon and conducting polymer hydrogel, a spongy material similar to that used in contact lenses and other household products.

Writing in the June 4 edition of the journal Nature Communications, the scientists describe a new technique for producing low-cost, silicon-based batteries with potential applications for a wide range of electrical devices.

New biomolecular archaeological evidence points to the beginnings of viniculture in France

PHILADELPHIA, PA June 2013—France is renowned the world over as a leader in the crafts of viticulture and winemaking—but the beginnings of French viniculture have been largely unknown, until now.

New biomolecular archaeological evidence points to the beginnings of viniculture In France

PHILADELPHIA, PA June 2013—France is renowned the world over as a leader in the crafts of viticulture and winemaking—but the beginnings of French viniculture have been largely unknown, until now.