Mechanical Engineering

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Mechanical Engineering - 05.08.2013
Scientists in a spin over Doppler Shift discovery
Scientists at the Universities of Glasgow and Strathclyde have discovered rotational speed can be determined by measuring Doppler Shift - the same effect utilised in radar speed guns. Doppler Shift is a phenomenon everyone is aware of, if perhaps not by name, and is most often experienced by the sound of a siren from a police car or ambulance rising and falling in pitch as it passes by.

Mechanical Engineering - 05.08.2013
Date palm leaves show potential as building materials
Date palm leaves show potential as building materials
A collaborative project involving Imperial and the UAE is assessing the potential of date palm leaves as a renewable, low-carbon building material. Phoenix dactylifera, or the date palm tree, is perhaps best known for its sweet fruit but, as growers in the United Arab Emirates (UAE) have known for thousands of years, its leaves can also be used in construction.

Mechanical Engineering - Environment - 01.08.2013
Cleaning Solar Panels Often Not Worth the Cost, Engineers at UC San Diego Find
Don't hire someone to wash your dirty solar panels. That's the conclusion of a study recently conducted by a team of engineers at the University of California, San Diego. Their Researchers found panels that hadn't been cleaned, or rained on, for 145 days during a summer drought in California, lost only 7.4 percent of their efficiency.

Mathematics - Mechanical Engineering - 30.07.2013
Figuring Out Flow Dynamics
Figuring Out Flow Dynamics
Turbulence is all around us-in the patterns that natural gas makes as it swirls through a transcontinental pipeline or in the drag that occurs as a plane soars through the sky. Reducing such turbulence on say, an airplane wing, would cut down on the amount of power the plane has to put out just to get through the air, thereby saving fuel.

Mechanical Engineering - Life Sciences - 18.07.2013
Secrets of bee honeycombs revealed
The mystery of the hexagonal shape of honeycomb cells has been revealed by simple mechanics. The honeybee comb is a widely studied natural cellular structure. The rounded hexagonal shape of its cells has intrigued natural scientists and philosophers for millennia. They have suggested many explanations some of which would need the bees to have an uncanny ability ("forethought" according to Pappus of Alexandria in 4 AD) to perform mathematical calculations or the magical quality to measure lengths and angles.

Mechanical Engineering - 09.07.2013
Pentland Firth could generate 'almost half of Scotland's electricity'
Pentland Firth could generate 'almost half of Scotland's electricity'
Tidal turbines stretched across Pentland Firth, which separates the Orkney Islands from mainland Scotland, could generate up to 1.9 gigawatts (GW) of power - equivalent to almost half of Scotland's electricity needs. A new study, led by Oxford University researchers, provides the first reliable estimate of the maximum energy that could be generated from Pentland Firth.

Chemistry - Mechanical Engineering - 20.06.2013
Discovery could lead to new way of cleaning up oil spills
Discovery could lead to new way of cleaning up oil spills
UAlberta researchers show that a simple glass surface can be made to repel oil underwater. University of Alberta mechanical engineering researchers have shown that a simple glass surface can be made to repel oil underwater. This has huge implications for development of a chemical repellent technology for use in cleaning up oil spills.

Mathematics - Mechanical Engineering - 17.06.2013
Is there an invisible tug-of-war behind bad hearts and power outages?
Systems such as a beating heart or a power grid that depend on the synchronized movement of their parts could fall prey to an invisible and chaotic tug-of-war known as a "chimera." Sharing its name with the fire-breathing, zoologically patchy creature of Greek mythology, a chimera state arises among identical, rhythmically moving components — known as oscillators — when a few of those parts spontaneously fall out of sync while the rest remain synchronized.

Physics - Mechanical Engineering - 03.05.2013
Unique engineering shop looks to another challenge of 21st century physics
Associate instrument innovators Leland Greenler, left, and Dan Wahl measure the individual tension of thousands of tiny woven wires that make up a prototype neutrino-target screen being designed at the UW-Madison Physical Sciences Lab. Photos: Jeff Miller Sequestered in the farmland near Stoughton, an unusual UW-Madison facility — part machine shop, part design lab, part physics outpost — continues to make machines, equipment and detectors for the world's most advanced experiments.

Mechanical Engineering - Health - 16.04.2013
Energy efficiency could increase hospital risks
The chance of infection in some NHS wards varies dramatically according to whether the nurses leave the windows open. A University of Leeds-led team studied airflow in a “Nightingale” ward—the classic NHS ward that traditionally accommodated two rows of up to 30 beds—using tracer gases to simulate how airborne infections spread.

Physics - Mechanical Engineering - 09.04.2013
A step toward optical transistors?
As demand for computing and communication capacity surges, the global communication infrastructure struggles to keep pace, since the light signals transmitted through fiber-optic lines must still be processed electronically, creating a bottleneck in tele networks. While the idea of developing an optical transistor to get around this problem is alluring to scientists and engineers, it has also remained an elusive vision, despite years of experiments with various approaches.

Mechanical Engineering - Electroengineering - 02.04.2013
Sonic lasso catches cells
Sonic lasso catches cells
Academics have demonstrated for the first time that a "sonic lasso" can be used to grip microscopic objects, such as cells, and move them about. The research by academics at the University of Bristol's Department of Mechanical Engineering and the University of Dundee's Institute for Medical Science and Technology is published online in Applied Physics Letters .

Electroengineering - Mechanical Engineering - 27.03.2013
Research leads towards new standard tests for tennis courts
Tennis players can adapt their movement/playing style in response to subtle differences in court constructions, according to new research by engineers at the University of Sheffield. The findings - published online in the Journal of Sports Engineering and Technology - are the first steps towards setting international standards to characterise the interaction between shoes and surfaces.

Mechanical Engineering - Continuing Education - 21.03.2013
Preschoolers can discern good sources of information from bad
Preschoolers can discern good sources of information from bad
Young children are not like sponges just soaking up information. They can actively evaluate what people know and go to the "experts" for information they want, reports a Cornell study published in a special issue of Developmental Psychology (Vol. Children, the researchers say, are "natural scientists" who gather and assess evidence from the world around them.

Mechanical Engineering - Law - 21.03.2013
Personality clue to ’wind turbine syndrome’
Public concern about new technology infrastructure like mobile phone masts has been shown to trigger reports of ill health... and recently even the new 'green' technology of wind turbines has been blamed for medically unexplained non-specific symptoms. But now, for the first time, a study by psychologists, engineers and built environment experts at The University of Nottingham , has found no link between the 'measured' level of noise from small and micro wind turbines and reports of ill health.

Health - Mechanical Engineering - 14.03.2013
Mutations in VCP gene implicated in a number of neurodegenerative diseases
New research, published in Neuron , gives insight into how single mutations in the VCP gene cause a range of neurological conditions including a form of dementia called Inclusion Body Myopathy, Paget's Disease of the Bone and Frontotemporal Dementia (IBMPFD), and the motor neuron disease Amyotrophic Lateral Sclerosis (ALS).

Life Sciences - Mechanical Engineering - 27.02.2013
Songbirds’ brains coordinate singing with intricate timing, study shows
As a bird sings, some neurons in its brain prepare to make the next sounds while others are synchronized with the current notes—a coordination of physical actions and brain activity that is needed to produce complex movements, new research at the University of Chicago shows. In an article in the current issue of Nature , neuroscientist Daniel Margoliash and colleagues show, for the first time, how the brain is organized to govern skilled performance—a finding that may lead to new ways of understanding human speech production.

Mechanical Engineering - 26.02.2013
In probing mysteries of glass, researchers find a key to toughness
Glass doesn't have to be brittle. In a paper published online Feb. 26 , a Yale University team and collaborators propose a way of predicting whether a given glass will be brittle or ductile - a desirable property typically associated with metals like steel or aluminum - and assert that any glass could have either quality.

Mechanical Engineering - Electroengineering - 22.02.2013
Researchers develop new method of powering tiny devices
FINDINGS: Electromagnetic devices, from power drills to smart-phones, require an electric current to create the magnetic fields that allow them to function. But with smaller devices, efficiently delivering a current to create magnetic fields becomes more difficult. In a discovery that could lead to big changes in storing digital information and powering motors in small hand-held devices, researchers at UCLA have developed a method for switching tiny magnetic fields on and off with an electric field — a sharp departure from the traditional approach of running a current through a wire.

Life Sciences - Mechanical Engineering - 19.02.2013
Engineering Study Sheds New Light on Infant Brain Development
A new study by Columbia Engineering researchers finds that the infant brain does not control its blood flow in the same way as the adult brain. The findings, which the scientists say could change the way researchers study brain development in infants and children, are published in the February 18 Early Online edition of Proceedings of the National Academy of Sciences (PNAS).
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