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Showing posts from April, 2018

Water-repellent surfaces can efficiently boil water, keep electronics cool

Surfaces that repel water can support efficient boiling if all air and vapor is removed from a system first, according to new research.

New materials for sustainable, low-cost batteries

A new conductor material and a new electrode material could pave the way for inexpensive batteries and therefore the large-scale storage of renewable energies.

Energy conversion: Speeding up material discovery

Researchers have developed an algorithm that can discover and optimize thermoelectic materials for energy conversion in a matter of months, relying on solving quantum mechanical equations, without any experimental input.

Scientists create innovative new 'green' concrete using graphene

A new greener, stronger and more durable concrete that is made using the wonder-material graphene could revolutionise the construction industry.

This 2-D nanosheet expands like a Grow Monster

Engineers discovered that tiny crystal lattices called 'self-assembling molecular nanosheets' expand when exposed to light. The advancement could form the backbone of new light-powered actuators, oscillators and other microscopic electronic components useful in the development of artificial muscles and other soft robotic systems.

Molecular scaffolding aids construction at the nanoscale

Researchers have made a nanoscale construction kit comprised of molecular 'bricks' and 'scaffolding,' inspired by the way the extracellular matrix is built around living cells.

Engineers develop technique to make adaptive materials

Engineers have developed a technique that causes a composite material to become stiffer and stronger on-demand when exposed to ultraviolet light.

Spider silk key to new bone-fixing composite

Researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

How to bend and stretch a diamond

Brittle diamond can turn flexible and stretchable when made into ultrafine needles, researchers at MIT and elsewhere have discovered.

Strategies to Protect Buildings Constructed on Brownfield Land

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The term Brownfield land is used for a land that has been developed previously, i.e. buildings and associated infrastructures have been constructed...

Performing under pressure: Modeling oxidation in high-stress materials

Each year, the effects of corroding materials sap more than $1 trillion from the global economy. As certain alloys are exposed to extreme stress and temperatures, an oxide film begins to form, causing the alloys to break down even more quickly. What precisely makes these conditions so conducive for corrosion, however, remains poorly understood, especially in microelectromechanical devices. Chinese researchers have started to chip away at why these materials corrode under mechanical stress.

Embedments in Concrete and When it is Used in Reinforced Concrete

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What are embedments in concrete? Embedments are any items for instance pipes, ducts, sleeves, and conduits placed in concrete elements for different...

New algorithm could add life to bridges

A new algorithm developed by the University of Surrey could help structural engineers better monitor the health of bridges and alert them to when they need repair faster.

Methods to Check Verticality of Structure during Building Construction

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Checking verticality works would encounter during building construction at several stages such as during installing vertical formworks of columns and...

Inspection Checklists for Construction of Urban Stormwater System

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Checks that need to be carried at different stages of urban stormwater system construction includes checklist for excavation, trenching, pipes before...

Microphone for light: Tiny guitar string vibrates 1 billion times when plucked

Scientists have engineered a tiny guitar string that vibrates 1 billion times when plucked. They would like to use it as a microphone for light.

Recommendations for Good Brick Masonry Construction Practices

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Several recommendations for good site brick masonry construction includes practices for accuracy and tolerances, appearance, durability, structural...

Recycling experts hit milestone in quest for zero-waste phone

UBC researchers have perfected a process to efficiently separate fiberglass and resin -- two of the most commonly discarded parts of a cellphone -- bringing them closer to their goal of a zero-waste cellphone.

3-D printed active metamaterials for sound and vibration control

Researchers have been pushing the capabilities of materials by carefully designing precise structures that exhibit abnormal properties that can control acoustic or optical waves. However, these metamaterials are constructed in fixed geometries, meaning their unique abilities are always fixed. Now, new 3-D printed metamaterial can be remotely switched between active control and passive states.

New sodium-ion electrolyte may find use in solid-state batteries

A newly discovered structure of a sodium-based material allows the materials to be used as an electrolyte in solid-state batteries, according to researchers. The team is fine-tuning the material using an iterative design approach that they hope will shave years off the time from research to everyday use.

Self-healing metal oxides could protect against corrosion

Researchers find a solid protective coating material that can flow like a liquid to repair any cracks that develop.

Ancient paper art, kirigami, poised to improve smart clothing

Scientists describe how kirigami has inspired its efforts to build malleable electronic circuits. Their innovation -- creating tiny sheets of strong yet bendable electronic materials made of select polymers and nanowires -- could lead to improvements in smart clothing, electronic skin and other applications that require pliable circuitry.

Does metal use slow when a country's wealth grows? Maybe not

In a new study, researchers found that GDP remains intrinsically linked with metal use even as affluence grows -- a relationship that might threaten long-term global access to critical metals and hopes for a low-carbon future.