HAKUTO, the Japanese team competing for the $30M Google
Lunar XPRIZE, has announced new pre-flight models of its two moon exploration
rovers: four wheeled “Moonraker” and two wheeled “Tetris.” The Google Lunar
XPRIZE is an unprecedented competition challenging privately funded teams to
successfully land a spacecraft on the lunar surface that travels at least 500
meters and transmits high-definition video and imagery back to earth. Hakuto
has developed a small and lightweight dual rover system to fulfill the
requirements of the Google Lunar XPRIZE and, for the first time, explore caves
beneath the lunar surface.
September 30, 2014
September 29, 2014
In-flight sensor tests a step toward Structural Health Monitoring for safer flights
click to expand
Nine commercial aircraft flying regular routes are on the
frontier of aviation safety, carrying sensors that monitor their structural health
along with their routine maintenance. These flight tests are part of a Federal
Aviation Administration (FAA) certification process that will make the sensors
widely available to U.S. airlines.
“The flight test program is underway,” said Dennis Roach, a
senior scientist in Sandia National Laboratories’ Transportation, Safeguards
& Surety Program who has worked in aviation safety for 25 years. “We have
moved past laboratory research and are looking for certification for actual
on-board usage. Our activities are proving that the sensors work on particular
applications and that it is safe and reliable to use these sensor systems for
routine aircraft maintenance.”
September 26, 2014
ORNL TEAM FIRST TO FULLY SEQUENCE BACTERIAL GENOME IMPORTANT TO FUEL AND CHEMICAL PRODUCTION
Researchers at the Department of Energy’s Oak Ridge National
Laboratory are the first team to sequence the entire genome of the Clostridium
autoethanogenum bacterium, which is used to sustainably produce fuel and
chemicals from a range of raw materials, including gases derived from biomass
and industrial wastes.
Green light for clever algae
RUB researchers study extraordinary phycobiliproteins
Paper of the week: algae combine tried-and-tested with new
synthesis methods
Phytoplankton not only constitutes the foundation of the
food chain in the oceans, it also fixes carbon through photosynthesis and
generates oxygen with the help of solar energy. A considerable part of
phytoplankton is made up of cryptophytes, complex single-cell algae. In the
course of evolution, these algae have adapted their light-harvesting mechanisms
to their environment and have thus become capable of utilising green light.
Fertilizer and Fuel
Freiburg researchers elucidate how a nitrogen-fixing enzyme
also produces hydrocarbons
Plants need nitrogen and carbon to grow. Photosynthesis
allows them to take in the latter directly from the air, but they have to
procure nitrogen through their roots in the form of organic molecules like
ammonia or urea. Even though nitrogen gas makes up approximately 80 percent of
Earth’s atmosphere, the plant can only access it in a bound – or ‘fixed' –
form. Farmers thus use fertilizers to provide their crops with nitrogen.
September 24, 2014
"Funnel" attracts bonding partners to biomolecule
Water movement as detection aid for molecules
RESOLV combines terahertz spectroscopy and simulation
Water is a ubiquitous solvent in all life sciences –
sometimes referred to as the "matrix of life". Contrary to earlier
assumptions, it is not a passive witness of biochemical processes; rather, it
participates in them actively. By influencing the movement of water molecules
surrounding their binding pockets, proteins can create a type of “funnel” in
the surrounding water, which assists the bonding of certain binding partners
that are solvated in water.
Nanotechnology leads to better, cheaper LEDs for phones and lighting
Princeton University researchers have developed a new method
to increase the brightness, efficiency and clarity of LEDs, which are widely
used on smartphones and portable electronics as well as becoming increasingly
common in lighting.
Using a new nanoscale structure, the researchers, led by
electrical engineering professor Stephen Chou, increased the brightness and
efficiency of LEDs made of organic materials (flexible carbon-based sheets) by
57 percent. The researchers also report their method should yield similar
improvements in LEDs made in inorganic (silicon-based) materials used most
commonly today.
NRL Researchers Develop Novel Method to Synthesize Nanoparticles
Scientists at the U.S. Naval Research Laboratory (NRL)
Materials Science and Technology Division have developed a novel one-step
process using, for the first time in these types of syntheses, potassium
superoxide (KO2) to rapidly form oxide nanoparticles from simple salt solutions
in water.
"Typically, the
synthesis of oxide nanoparticles involves the slow reaction of a weak oxidizing
agent, such as hydrogen peroxide, with dilute solutions of metal salts or
complexes in both aqueous and non-aqueous solvent systems," said Dr. Thomas
Sutto, NRL research chemist. "The rapid exothermic reaction of potassium
superoxide with the salt solutions results in the formation of insoluble oxide
or hydroxide nanoparticulates."
September 23, 2014
Los Alamos researchers uncover new properties in nanocomposite oxide ceramics for reactor fuel, fast-ion conductors
In a nanocomposite, the size of each of these grains is on
the order of nanometers, roughly 1000 times smaller than the width of a human
hair.
Misfit dislocations are key to transport properties across
material interfaces
Nanocomposite oxide ceramics have potential uses as
ferroelectrics, fast ion conductors, and nuclear fuels and for storing nuclear
waste, generating a great deal of scientific interest on the structure,
properties, and applications of these blended materials.
September 22, 2014
New chip promising for tumor-targeting research
Researchers have developed a chip capable of simulating a
tumor's "microenvironment" and plan to use the new system to test the
effectiveness of nanoparticles and drugs that target cancer.
The new system, called a tumor-microenvironment-on-chip
(T-MOC) device, will allow researchers to study the complex environment
surrounding tumors and the barriers that prevent the targeted delivery of
therapeutic agents, said Bumsoo Han, a Purdue University associate professor of
mechanical engineering.
Drinking Warm Water From Plastic Bottles May Raise Cancer Risk
New research suggests that people should avoid drinking
water from plastic bottles if they have been sitting in a warm environment for
a long time.
Researchers from the University of Florida found that when
heated, plastic water bottles, which are made from polyethylene terephthalate,
release the chemicals antimony and bisphenol A, commonly called BPA.
New RFID technology helps robots find household objects
Mobile robots could be much more useful in homes, if they
could locate people, places and objects. Today’s robots usually see the world
with cameras and lasers, which have difficulty reliably recognizing things and
can miss objects that are hidden in clutter. A complementary way robots can
“sense” what is around them is through the use of small ultra-high frequency
radio-frequency identification (UHF RFID) tags. Inexpensive self-adhesive tags
can be stuck on objects, allowing an RFID-equipped robot to search a room for
the correct tag’s signal, even when the object is hidden out of sight. Once the
tag is detected, the robot knows the object it’s trying to find isn’t far away.
Engineers show light can play seesaw at the nanoscale
Discovery is another step toward faster and more
energy-efficient optical devices for computation and communication
University of Minnesota electrical engineering researchers
have developed a unique nanoscale device that for the first time demonstrates
mechanical transportation of light. The discovery could have major implications
for creating faster and more efficient optical devices for computation and
communication.
The research paper by University of Minnesota electrical and
computer engineering assistant professor Mo Li and his graduate student Huan Li
has been published online and will appear in the October issue of Nature
Nanotechnology.
Graphene flaws key to creating hypersensitive ‘electronic nose’
Researchers have discovered a way to create a highly
sensitive chemical sensor based on the crystalline flaws in graphene sheets.
The imperfections have unique electronic properties that the researchers were
able to exploit to increase sensitivity to absorbed gas molecules by 300 times.
The study is available online in advance of print in Nature
Communications.
Communication without detours
Scientists from Heidelberg, Mannheim and Bonn discover a new
shape of neurons that allows signals to be propagated via a shortcut (September
2014).
Nerve cells communicate by using electrical signals. Via
widely ramified cell structures—the
dendrites—, they receive signals from other neurons and then transmit
them over a thin cell extension—the axon—to other nerve cells. Axon and
dendrites are usually interconnected by the neuron’s cell body. A team of
scientists at the Bernstein Center Heidelberg-Mannheim, Heidelberg University,
and the University of Bonn has now discovered neurons in which the axon arises
directly from one of the dendrites. Similar to taking a bypass road, the signal
transmission is thus facilitated within the cell.
New formulation leads to improved liquid battery
Cheaper, longer-lasting materials could enable batteries
that make wind and solar energy more competitive.
Researchers at MIT have improved a proposed liquid battery
system that could enable renewable energy sources to compete with conventional
power plants.
Donald Sadoway and colleagues have already started a company
to produce electrical-grid-scale liquid batteries, whose layers of molten
material automatically separate due to their differing densities. But the new
formula — published in the journal Nature by Sadoway, former postdocs Kangli
Wang and Kai Jiang, and seven others — substitutes different metals for the
molten layers used in a battery previously developed by the team.
Stanford researchers create 'evolved' protein that may stop cancer from spreading
Experimental therapy stopped the metastasis of breast and
ovarian cancers in lab mice, pointing toward a safe and effective alternative
to chemotherapy.
A team of Stanford researchers has developed a protein
therapy that disrupts the process that causes cancer cells to break away from
original tumor sites, travel through the bloodstream and start aggressive new
growths elsewhere in the body.
Smallest Possible Diamonds Form Ultra-thin Nanothreads
For the first time, scientists have discovered how to
produce ultra-thin "diamond nanothreads" that promise extraordinary
properties, including strength and stiffness greater than that of today's
strongest nanotubes and polymers. A paper describing this discovery by a
research team led by John V. Badding, a professor of chemistry at Penn State
University, will be published in the 21 September 2014 issue of the journal
Nature Materials.
September 21, 2014
Fracking’s environmental impacts scrutinised
Greenhouse gas emissions from the production and use of
shale gas would be comparable to conventional natural gas, but the
controversial energy source actually faired better than renewables on some
environmental impacts, according to new research.
The UK holds enough shale gas to supply its entire gas
demand for 470 years, promising to solve the country’s energy crisis and end
its reliance on fossil-fuel imports from unstable markets. But for many,
including climate scientists and environmental groups, shale gas exploitation
is viewed as environmentally dangerous and would result in the UK reneging on
its greenhouse gas reduction obligations under the Climate Change Act.
September 20, 2014
'Solid' light could compute previously unsolvable problems about the behavior of matter
Researchers at Princeton University have begun crystallizing
light as part of an effort to answer fundamental questions about the physics of
matter.
The researchers are not shining light through crystal — they
are transforming light into crystal. As part of an effort to develop exotic
materials such as room-temperature superconductors, the researchers have locked
together photons, the basic element of light, so that they become fixed in
place.
A nanosized hydrogen generator
Researchers at the US Department of Energy’s (DOE) Argonne
National Laboratory have created a small scale “hydrogen generator” that uses
light and a two-dimensional graphene platform to boost production of the
hard-to-make element.
The research also unveiled a previously unknown property of
graphene. The two-dimensional chain of carbon atoms not only gives and receives
electrons, but can also transfer them into another substance.
Fingertip sensor gives robot unprecedented dexterity
Equipped with a novel optical sensor, a robot grasps a USB
plug and inserts it into a USB port.
Researchers at MIT and Northeastern University have equipped
a robot with a novel tactile sensor that lets it grasp a USB cable draped
freely over a hook and insert it into a USB port.
The sensor is an adaptation of a technology called GelSight,
which was developed by the lab of Edward Adelson, the John and Dorothy Wilson
Professor of Vision Science at MIT, and first described in 2009. The new sensor
isn’t as sensitive as the original GelSight sensor, which could resolve details
on the micrometer scale. But it’s smaller — small enough to fit on a robot’s
gripper — and its processing algorithm is faster, so it can give the robot
feedback in real time.
Reflected smartphone transmissions enable gesture control
With almost all of the U.S. population armed with cellphones
– and close to 80 percent carrying a smartphone – mobile phones have become
second-nature for most people.
What’s coming next, say University of Washington
researchers, is the ability to interact with our devices not just with
touchscreens, but through gestures in the space around the phone. Some
smartphones are starting to incorporate 3-D gesture sensing based on cameras,
for example, but cameras consume significant battery power and require a clear
view of the user’s hands.
September 19, 2014
Smartgels Are Thicker Than Water
Transforming substances from liquids into gels plays an
important role across many industries, including cosmetics, medicine, and
energy. But the transformation process, called gelation, where manufacturers
add chemical thickeners and either heat or cool the fluids to make them more
viscous or elastic, is expensive and energy demanding. Take shampoo, for example.
Without gelation, the contents of the shampoo bottle would be thin and watery.
Instead of squirting a gooey dollop into the palm of your hand, the shampoo
would rush between your fingers and escape down the drain before you could
slather it on your head.
Nuclear Spins Control Current in Plastic LED
STEP TOWARD QUANTUM COMPUTING, SPINTRONIC MEMORY, BETTER
DISPLAYS
University of Utah physicists read the subatomic “spins” in
the centers or nuclei of hydrogen isotopes, and used the data to control
current that powered light in a cheap, plastic LED – at room temperature and
without strong magnetic fields.
The study – published in Friday’s issue of the journal
Science – brings physics a step closer to practical machines that work
“spintronically” as well as electronically: superfast quantum computers, more
compact data storage devices and plastic or organic light-emitting diodes, or
OLEDs, more efficient than those used today in display screens for cell phones,
computers and televisions.
September 18, 2014
Camera developed at Washington University sheds light on mate choice of swordtail fish
We have all seen a peacock show its extravagant, colorful
tail feathers in courtship of a peahen. Now, a group of researchers have used a
special camera developed by an engineer at Washington University in St. Louis
to discover that female northern swordtail fish choose their mates based on a
similar display.
World’s first Pilot plant converts CO2 and steel slag into a valuable resource
click to expand
In a world first, researchers at Aalto University have
opened a new pilot plant that converts CO2 and slag, the by-product of steel
manufacturing, into Precipitated Calcium Carbonate (PCC).
PCC is a valuable mineral product used in e.g. plastics,
papers, rubbers and paints. The innovative plant represents the next stage
prior commercialization of a new process that consumes CO2 in order to convert
a low-value by-product into a highly valuable resource for industry.
September 17, 2014
American-made wind turbine blades
click to expand
Sandia National Laboratories is helping makers of wind
turbine blades improve the labor productivity associated with blade fabrication
and finishing. This improved productivity makes domestic blades more cost
competitive with blades from countries that pay workers lower wages.
Most Entrepreneurs Aren’t Like Steve Jobs
Leaving one’s job to become an entrepreneur is inarguably
risky. But it may not be the fear of risk that makes entrepreneurs more
determined to succeed. A new study finds entrepreneurs are also concerned about
what they might lose in the transition from steady employment to startup.
Engineers develop algorithms to switch out and recharge battery modules in electric cars
click to expand
Imagine being able to switch out the batteries in electric
cars just like you switch out batteries in a photo camera or flashlight. A team
of engineers at the University of California, San Diego, are trying to
accomplish just that, in partnership with a local San Diego engineering
company.
Oxides Discovered by CCNY Team Could Advance Memory Devices
The quest for the ultimate memory device for computing may
have just taken an encouraging step forward. Researchers at The City College of
New York led by chemist Stephen O’Brien have discovered new complex oxides that
exhibit both magnetic and ferroelectric properties.
Global change: Trees continue to grow at a faster rate
Study highlights forest growth trends from 1870 to the
present
Global change: Trees continue to grow at a faster rate
Trees have been growing significantly faster since the
1960s. The typical development phases of trees and stands have barely changed,
but they have accelerated – by as much as 70 percent. This was the outcome of a
study carried out by scientists from Technische Universität München (TUM) based
on long-term data from experimental forest plots that have been continuously
observed since 1870. Their findings were published recently in Nature
Communications.
NASA's Robonaut 2 Droid Gets Its Legs on Space Station
Look out, astronauts – your companion robot on the
International Space Station is now mobile! NASA's Robonaut 2 has received a set
of legs that will help it move around the station, and will eventually enable
the bot to work on repairs both inside and outside the orbiting outpost.
Nissan and HKDC Start Collaborative Testing of the 100% Electric Nissan e-NV200 Compact Van in Hong Kong
click to expand
* Nissan and Veolia’s
subsidiary, Hong Kong District Cooling Company Limited, begins testing of the
100% electric e-NV200 compact van in Hong Kong
* Part of the
comprehensive field testing program by Nissan in Hong Kong and the continuous
efforts by Hong Kong District Cooling Company Limited to practice sustainable
development in the community and industry
* Trial results and
feedback will continue to shape the development of zero-emission mobility
solutions and infrastructure in Hong Kong
Violent Origins of Disc Galaxies Probed by ALMA
New observations explain why Milky Way-like galaxies are so
common in the Universe
For decades scientists have believed that galaxy mergers
usually result in the formation of elliptical galaxies. Now, for the the first
time, researchers using ALMA and a host of other radio telescopes have found
direct evidence that merging galaxies can instead form disc galaxies, and that
this outcome is in fact quite common. This surprising result could explain why
there are so many spiral galaxies like the Milky Way in the Universe.
Do wearable lifestyle activity monitors really work?
Wearable electronic activity monitors hold great promise in
helping people to reach their fitness and health goals. These increasingly
sophisticated devices help the wearers improve their wellness by constantly
monitoring their activities and bodily responses. This information is organized
into companion computer programs and mobile apps.
September 16, 2014
Novel capability enables first test of real turbine engine conditions
Manufactures of turbine engines for airplanes, automobiles
and electric generation plants could expedite the development of more durable,
energy-efficient turbine blades thanks to a partnership between the U.S.
Department of Energy’s Argonne National Laboratory, the German Aerospace Center
and the universities of Central Florida and Cleveland State.
For electronics beyond silicon, a new contender emerges
NEW TRANSISTOR ACHIEVES ‘COLOSSAL’ SWITCHABLE RESISTANCE
USING QUANTUM MATERIALS AND PHYSICS DEVELOPED IN A FUEL CELL LAB
Silicon has few serious competitors as the material of
choice in the electronics industry. Yet transistors, the switchable valves that
control the flow of electrons in a circuit, cannot simply keep shrinking to
meet the needs of powerful, compact devices; physical limitations like energy
consumption and heat dissipation are too significant.
Nanoribbon film keeps glass ice-free
Rice University lab refines deicing film that allows radio
frequencies to pass
Rice University scientists who created a deicing film for
radar domes have now refined the technology to work as a transparent coating
for glass.
The new work by Rice chemist James Tour and his colleagues
could keep glass surfaces from windshields to skyscrapers free of ice and fog
while retaining their transparency to radio frequencies (RF).
Scientists Twist Radio Beams to Send Data
Transmissions reach speeds of 32 gigibits per second
Building on previous research that twisted light to send
data at unheard-of speeds, scientists at USC have developed a similar technique
with radiowaves, reaching high speeds without some of the hassles that can go
with optical systems.
Emotion detector
Face recognition software measures various parameters in a
mug shot, such as the distance between the person’s eyes, the height from lip
to top of their nose and various other metrics and then compares it with photos
of people in the database that have been tagged with a given name. Now,
research published in the International Journal of Computational Vision and
Robotics looks to take that one step further in recognizing the emotion
portrayed by a face.
First Water-Based Nuclear Battery Developed by MU Researcher Can Be Used to Generate Electrical Energy
Long-lasting batteries could be used for emergency equipment
and in spaceflight
From cell phones to cars and flashlights, batteries play an
important role in everyday life. Scientists and technology companies constantly
are seeking ways to improve battery life and efficiency. Now, for the first
time using a water-based solution, researchers at the University of Missouri
have created a long-lasting and more efficient nuclear battery that could be
used for many applications such as a reliable energy source in automobiles and
also in complicated applications such as space flight.
Replacing plastic and mineral wool insulation with wood fibre
As part of the WoTIM project (Wood-based Thermal Insulation
Materials), VTT Technical Research Centre of Finland is developing wood
fibre-based insulation materials and sprayable insulation foams with enhanced
product features. The new materials will enable mass production of high-quality
insulation products, which will replace products made of non-renewable or
poorly recyclable raw materials. Use of wood-based material will lower energy
consumption at the production stage, as well as reducing the products' carbon
footprint.
September 15, 2014
‘Squid skin’ metamaterials project yields vivid color display
Rice lab creates RGB color display technology with aluminum
nanorods
The quest to create artificial “squid skin” — camouflaging
metamaterials that can “see” colors and automatically blend into the background
— is one step closer to reality, thanks to a breakthrough color-display technology
unveiled this week by Rice University’s Laboratory for Nanophotonics (LANP).
X-rays unlock a protein’s SWEET side
Sugar is a vital source of energy for both plants and
animals alike.
Understanding just how sugar makes its way into the cell could
lead to the design of better drugs for diabetes patients and an increase in the
amount of fruits and vegetables farmers are able to grow. Stanford University
researchers have recently uncovered one of these "pathways” into the cell
by piecing together proteins slightly wider than the diameter of a strand of
spider silk.
Small algae with great potential
Unique laboratory experiment shows rapid evolutionary
adaptation to ocean acidification and warming
The single most important calcifying algae of the world’s
oceans is able to simultaneously adapt to rising water temperatures and ocean
acidification through evolution. A unique long-term experiment with the species
Emiliania huxleyi at GEOMAR Helmholtz Centre for Ocean Research Kiel shows that
the evolutionary potential of the algae is much greater than previously
thought. In their laboratory evolution experiment, the scientists have shown
for the first time that evolutionary adaptations to multiple stress factors do
not necessarily interfere with each other. Further work will reveal how
evolution in ocean microbes may affect the function of the ocean in removing
carbon dioxide to the deep sea and whether or not laboratory findings can be
translated into the natural ocean environment.
‘Small’ transformation yields big changes
An interdisciplinary team of researchers led by Northeastern
University has developed a novel method for controllably constructing precise
inter-nanotube junctions and a variety of nanocarbon structures in carbon nanotube
arrays. The method, the researchers say, is facile and easily scalable, which
will allow them to tailor the physical properties of nanotube networks for use
in applications ranging from electronic devices to CNT-reinforced composite
materials found in everything from cars to sports equipment.
Zebrafish genes linked to human respiratory diseases
A*STAR scientists have discovered genes in this tropical
freshwater fish which may be synonymous with the genes for developing hair-like
structures in the human airway
A small freshwater fish found in many tropical aquariums may
hold the key to unlocking one of the leading causes of respiratory diseases in
humans.
Scientists from A*STAR’s Institute of Molecular and Cell Biology
(IMCB) have identified hundreds of novel genes in the zebrafish that could be
functionally identical to the human genes required for forming motile cilia,
hair-like structures on the surface of airway cells. These are required for
removing dust and pathogens from the human airway. The study showed that the
loss of these genes is linked to development of defective motile cilia, which
could be the cause of some respiratory diseases.
Rice rolls ‘neat’ nanotube fibers
Rice University researchers’ acid-free approach leads to
strong conductive carbon threads
The very idea of fibers made of carbon nanotubes is neat,
but Rice University scientists are making them neat — literally.
The single-walled carbon nanotubes in new fibers created at
Rice line up like a fistful of uncooked spaghetti through a process designed by
chemist Angel Martí and his colleagues.
Scientists come closer to the industrial synthesis of a material harder than diamond
Researchers from the Technological Institute for Superhard
and Novel Carbon Materials in Troitsk, MIPT, MISiS, and MSU have developed anew
method for the synthesis of an ultrahard material that exceeds diamond in
hardness. An article recently published in the journal Carbon describes in
detail a method that allows for the synthesis of ultrahard fullerite, a polymer
composed of fullerenes, or spherical molecules made of carbon atoms.
In their work, the scientists note that diamond hasn’t been
the hardest material for some time now. Natural diamonds have a hardness of
nearly 150 GPa, but ultrahard fullerite has surpassed diamond to become first
on the list of hardest materials with values that range from 150 to 300 GPa.
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