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Running robots

A team of engineers led by Ioannis Poulakakis aims to create robots that can run like animals, enabling them to access areas inaccessible to conventional vehicles. Using biomechanics research, they seek to develop a family of systematic control strategies that work with the robot's natural dynamics.

DOE Nuclear Program awards $1.6 million to Penn State

Three Penn State-led projects have received more than $1.6 million in combined research and development grants to improve nuclear fuel safety and develop new alloys for extended service. The projects focus on understanding corrosion protectiveness, detecting damage before fatigue cracks, and developing advanced monitoring methods.

Rehab robots lend stroke patients a hand

A new study published in Clinical Rehabilitation found that robot-assisted therapy, combined with functional task training, significantly improved functional arm use and bimanual arm activity in daily life among stroke patients. The study used accelerometers to measure real-world arm activity and showed that this type of therapy can pr...

SourceSAGE·JournalClinical Rehabilitation·DateAug 10, 2011

Good vibrations?

Researchers have found that exposure to vibrations from power tools can cause hand-arm vibration syndrome, a condition that leads to numbness, loss of dexterity, and discoloration in the extremities. A study by Concordia engineer Subhash Rakheja suggests that simple seat upgrades can reduce exposure by up to 60 percent.

The physics of bank shots

A study by NC State University researchers found that bank shots are more effective than direct shots, especially from 12 feet away or in the 'wing' areas between the three-point line and free-throw lane. The optimal aim points create a 'V' shape near the top center of the backboard.

SourceNorth Carolina State University·JournalJournal of Quantitative Analysis in Sports·DateMar 10, 2011

Robotic ghost knifefish is born

Researchers created a robotic fish that can swim vertically and horizontally with unprecedented agility. The robot uses a sophisticated fin to generate inward counterpropagating waves, allowing it to move in unexpected directions. Its potential applications include underwater recovery operations and long-term monitoring of coral reefs.

SourceNorthwestern University·JournalJournal of The Royal Society Interface·DateJan 18, 2011

Stem cells shape up to their surroundings

Research in the Journal of Tissue Engineering reveals that stem cells detect surface features with mechanosensors, which modulate gene expression through biochemical signaling cascades. This understanding opens doors to develop improved clinical prostheses with topographies that directly modulate stem cell fate.

SourceSAGE Publications UK·JournalJournal of Tissue Engineering·DateOct 7, 2010

A shot to the heart: Nanoneedle delivers quantum dots to cell nucleus

University of Illinois researchers have created a tiny needle that can deliver quantum dots directly into a cell's nucleus, allowing for the study of internal environments and cellular processes. This breakthrough technique uses electrical potential to control the release of molecules and offers precise monitoring capabilities, opening...

'White graphene' to the rescue

Researchers have successfully produced sheets of hexagonal boron nitride (h-BN), a potential insulator to complement graphene's electronic properties. The material can be deposited and transferred to various substrates, opening up possibilities for its use in graphene-based electronics.

SourceRice University·JournalNano Letters·DateJul 29, 2010

Nanowick at heart of new system to cool 'power electronics'

Researchers have developed a new ultrathin cooling technology that can efficiently cool 'power electronics' in military and automotive systems. The miniature device uses copper spheres and carbon nanotubes to passively wick a coolant, handling up to 550 watts per square centimeter of heat.

SourcePurdue University·JournalInternational Journal of Heat and Mass Transfer·DateJul 22, 2010

Stressed nanomaterials display unexpected movement

Researchers at Johns Hopkins University discovered that certain nanomaterials can move in regions called grain boundaries, leading to changes in their strength and plasticity. This finding has implications for the fabrication of microdevices and integrated circuits, as it may alter the materials' lifespan and performance.

SourceJohns Hopkins University·JournalScience·DateFeb 23, 2010