a DOE Office of Science User Facility at ORNL. There, aberration-corrected scanning transmission electron microscopy (STEM) imaging, led by Raymond Unocic,
Yet, attaching a functional handle specifically at the para position of benzene has been challenging due to multiple reactive sites on the ring.
making it possible to conduct late stage diversification of core structures containing benzene. The study, published online on April 10, 2015 in the Journal of the American Chemical Society("para-CH Borylation of Benzene derivatives by a Bulky Iridium Catalyst),
"displays the development of a powerful synthetic method that enables rapid access to para-functionalized benzene derivatives to construct libraries of bioactive compounds that are useful in medicinal chemistry.
Nonetheless, introducing a boryl group at a specific position on the 6-membered benzene ring has been rather challenging due to the presence of several reactive sites.
I figured that para-selective C-H functionalization would be an extremely useful technique for the late-stage diversification of core structures.
"explained Omar M. Ramahi, professor of electrical and computer engineering. Metasurfaces are formed by etching the surface of a material with an elegant pattern of periodic shapes.
"Other key applications include"wireless power transfer--directly adaptable to power remote devices such as RFID devices and tags or even remote devices in general,"Ramahi noted.
Fabrication and measurement of the device was performed at NISTS Center for Nanoscale Science and Technology (CNST), a national user facility available to researchers from industry, academia and government t
#Controlling swarms of robots with light and a single finger (w/video)( Nanowerk News) Using a smart tablet and a red beam of light,
A person taps the tablet to control where the beam of light appears on a floor. The swarm robots then roll toward the illumination,
When the person swipes the tablet to drag the light across the floor the robots follow.
If the operator puts two fingers in different locations on the tablet, the machines will split into teams
Using a smart tablet and a red beam of light, Georgia Institute of technology researchers have created a system that allows people to control a fleet of robots with the swipe of a finger.
A person taps the tablet to control where the beam of light appears on a floor. The swarm robots then roll toward the illumination,
When the person swipes the tablet to drag the light across the floor the robots follow.
If the operator puts two fingers in different locations on the tablet, the machines will split into teams
The new Georgia Tech algorithm that fuels this system demonstrates the potential of easily controlling large teams of robots,
or a million robots by individually programming each one where to go, "said Magnus Egerstedt, Schlumberger Professor in Georgia Tech's School of Electrical and Computer engineering."
"Instead, the operator controls an area that needs to be explored. Then the robots work together to determine the best ways to accomplish the job."
The Georgia Tech model is different from many other robotic coverage algorithms because it's not static.
The tablet-based control system has one final benefit: it was designed with everyone in mind. Anyone can control the robots,
This research outcome potentially allows for great flexibility in the design and optimization of electronic and optoelectronic devices like solar panels and telecommunication lasers.
This research outcome potentially allows for great flexibility in the design and optimization of electronic and optoelectronic devices like solar panels and telecommunication lasers.
in the journal Nature Nanotechnology("Dielectric metasurfaces for complete control of phase and polarization with subwavelength spatial resolution and high transmission"),could lead to ultracompact optical systems such as advanced microscopes, displays, sensors,
and cameras that can be mass-produced using the same photolithography techniques used to manufacture computer microchips.
Manipulating the polarization of light is essential for the operation of advanced microscopes, cameras, and displays;
As well as offering new opportunities for industry, it will stimulate the search for even better basic catalysts
This is the first example of learning from data in catalysis. We anticipate that this new approach will have a huge impact in future materials design,
Catalysts come in multiple forms including: acids, solid metal nanoparticles, and large protein molecules or enzymes in human bodies.
Ninety percent of industrially important chemicals are made using catalysts. It is a major field in applied science;
and Xin decided to use existing data to train computer algorithms to make predictions of new materials,
This study opens a new way for designing metal-based catalysts with complexities, for example, geometry and composition, promoters and poisons, defects,
#Inexpensive new carbon-based catalysts can be tuned fine The new catalyst is based carbon, made of graphite with additional compounds bonded to the edges of two-dimensional sheets of graphene that make up the material.
Jose-Luis Olivares/MIT) Catalysts enhance the rate of a chemical reaction but are consumed not in the process.
By finding a way to make this material tunable in the same ways as molecular catalysts
In addition to their possible uses in fuel cells, such new catalysts could also be useful for enhancing chemical reactions,
Using mouse models, the researchers tested their sunblock against direct ultraviolet rays and their ability to cause sunburn.
Previous studies have found traces of commercial sunscreen chemicals in users bloodstreams, urine, and breast milk.
and developers who design the software that decodes the neural signal. hat neural prosthetic devices do is communicate seamlessly to an external prosthesis,
Full open access research for mall-Molecule-Driven Direct Reprogramming of Mouse Fibroblasts into Functional Neuronsby Xiang Li, Xiaohan Zuo, Junzhan Jing, Yantao Ma,
In vivo intracortical recordings from the rat motor cortex illustrate one mode of use for these ECM-NES. mall-Molecule-Driven Direct Reprogramming of Mouse Fibroblasts into Functional Neuronsby Xiang Li, Xiaohan Zuo
making use of the user breath to propel medicine deep into the nasal cavity. The device administers oxytocin high up into the patient nasal cavity.
As the user exhales into the device, this closes the soft palate and prevents the medicine from being lost down the throat.
Delivering OT using a novel reath Powerednasal device previously shown to enhance deposition in intranasal sites targeted for nose-to-brain transport,
First, the laser pulse ploughs through a plasma consisting of positively charged atomic cores and their electrons like a ship through water, producing a wake of oscillating electrons.
which were assembled then to form a 3d data set. Due to the shortness of the X-ray pulses, this technique may be used in future to freeze ultrafast processes on the femtosecond time scale e g. in molecules
Data loggers record the data, transmitting the information to a wireless setup and relay system, which then sends it out via cell networks to a remote server.
From there, presumably civil engineers have access to the data and can use it to inform future maintenance planning
and repair schedules. The sensing system is great but powering sensors--even really efficient sensors--requires some form of electric charging or battery replacement.
solar-powered sensor reading station that can report Vinduino sensor data via the Thingspeak platform.
and creating software that will be able to read and interpret the data and feed it back to the irrigation valves closing the loop on fully automated watering.
Van der Lee says that one of his primary motivations for building Vinduino was to innovate on commercial soil monitoring systems that typically rely on readings from a single sensor.
van der Lee explains at the project Github page. he open source Arduino platform, together with low cost gypsum soil moisture sensors, provides all that. heck out the video below to learn more.
"3d printing of metal radically changes that. By looking at 3d printing not for that overall structure
but to create individual modular structures that can be combined, that 3d printing transforms everything, "said Czinger during an interview with Reuters in Silicon valley.
According to Czinger, 3d printing transforms everything by changing the way the structural components of cars are fabricated.
Currently cars are pieced together on long assembly lines inside large factories that use massive amounts of energy.
especially when we are talking about the core enabling technologies, "he said. The core enabling technology, the ability to print out car components that can be assembled easily,
is what Kevin Czinger hopes will revolutionize car manufacturing. He says electric cars are a step in the right direction,
but they believe their new 3d printing method for car manufacturing will have a huge impact on how the cars of the future are built t
and solid state, this magnet material displays physical phase transitions when gradually cooled right down to almost freezing."
because it displays properties that have yet to be found in nature, the complex nanomagnet structure has the potential to provide new methods of information transfer and memory storage,
The hope is that a material like this could have future applications in both data transfer and data storage.
the American Midwest was devastated by heavy and repeated flash flooding as a result of Hurricane Dean and Tropical Storm Erin dumping massive amounts of rain on several states.
Rollin used a genetic algorithm along with a series of complex mathematical expressions to analyze each step of the enzymatic process that breaks down corn stover into hydrogen and carbon dioxide.
Distribution of the hydrogen to users of fuel cell vehicles is another key challenge. Rollin's model increased reaction rates by threefold, decreasing the required facility size to about the size of a gas station,
"says Chris Chang, an expert in catalysts for carbon-neutral energy conversions.""In our system, nanowires harvest solar energy and deliver electrons to bacteria,
Its implementation in the market will depend on the needs of users and the issue of new laws regarding use
"We found fluorescence data well correlated with photosynthesis that was measured by another independent method. This is the first time that satellite-based fluorescence is validated by ground measurements,
The physicochemical expert explains that the common spraying method is used in doses of four tablets of phosphine per ton of grain."
We have demonstrated for the first time experimentally that liquid droplets can be highly mobile when in the Wenzel state."
therefore very important and contribute to the outlook where only five out of ten patients will survive for at least five years."
As well as offering new opportunities for industry, it will stimulate the search for even better basic catalysts
Besides its potential use in information transfer, the metamaterial might also prove useful in data storage or for sensors that measure magnetic fields.
says Timothy Lu, an associate professor of electrical engineering and computer science and biological engineering. Arrayarray"We'd like to be able to remove specific members of the bacterial population
the researchers combed through databases of phage genomes looking for sequences that appear to code for the key tail fiber section, known as gp17.
#3-D-Printed Device Helps Computers Solve Cocktail-party Problem Artificial-intelligence researchers have struggled long to make computers perform a task that is simple for humans:
or complex artificial-intelligence algorithms that try to separate different voices on a recording. But the latest invention, described in this week Proceedings of the National Academy of Sciences,
But the team wrote an algorithm that, by analysing each sound, can almost always tell which direction it came from.
says Chris Chang, an expert in catalysts for carbon-neutral energy conversions. n our system, nanowires harvest solar energy and deliver electrons to bacteria,
The results will allow scientists to analyze two sets of extensive DNA data, compiled independently of each other, compare the results
and color of optical materials used in computer screens along with other consumer products. The work is centered on enhancing the arrangement of colloidsmall particles suspended within a fluid medium.
#Animal-eye view of the world revealed with new visual software New camera technology that reveals the world through the eyes of animals has been developed by University of Exeter researchers.
The software, which converts digital photos to animal vision, can be used to analyse colours and patterns and is particularly useful for the study of animal
The software has already been used by the Sensory Ecology group in a wide range of studies,
iewing the world through the eyes of another animal has now become much easier thanks to our new software. igital cameras are powerful tools for measuring colours
Our software allows us to calibrate images and convert them to animal vision, so that we can measure how the scene might look to humans
and nonhumans alike. e hope that other scientists will use this open access software to help with their digital image analysis. ntil now,
there has been no user friendly software programme that enables researchers to calibrate their images, incorporate multiple layers visible and UV channels-,convert to animal colour spaces,
including the sometimes complex programming and calculations involved. This freely available open source software now offers a user friendly solution.
Colour vision varies substantially across the animal kingdom, and can even vary within a given species. Most humans
one photograph taken through a visible-pass filter can be combined by the software with a second taken through an ultraviolet-pass filter.
The software can then generate functions to show the image through an animal eyes. The researchers have provided specific data on camera settings for commonly studied animals, such as humans, blue tits, peafowl, honey bees, ferrets and some fish.
Flowers often look particularly striking in UV because they are signalling to attract pollinators that can see in UV, such as bees.
reptiles and insects in their colourful sexual displays to attract mates. Source: University of Exete i
Applications of these devices include advanced microscopes, displays, sensors, and cameras that can be mass-produced using the same techniques used to manufacture computer microchips. hese flat lenses will help us to make more compact and robust imaging assemblies,
said Mahmood Bagheri, a microdevices engineer at JPL and co-author of a new Nature Nanotechnology study describing the devices. urrently,
Manipulating the polarization of light is essential for the operation of advanced microscopes, cameras and displays;
. the investment fund of Microsoft cofounder Paul Allenas solved the long-enough problem. Making the plasma hot enough is the next key challenge.
whose own program recently completed a $94 million upgrade of its experimental machine, has followed closely developments with the Tri Alpha
it can sometimes be pointing in the wrong direction to provide a picture of a site of concern.
using 3d printing, and an experimental propulsion system, and tested it inside a pig stomach. The capsule itself is a simple structure, 13mm in diameter,
designed to hold a camera, LED light, an integrated circuit for receiving control instructions and transmitting data, antenna, 1. 5v button battery and, at the rear, the drive unit, to
Sitting somewhere between the traditional art of weaving and the recent home availability of 3d printers,
and computer programming to handbuild a machine which guides yarn in set patterns over layers to create the 3d shapes such as those used on the soles of the navy shoes he created.
Above those tubes is a mechanised eederwhich winds the fabric for example cotton around them in shapes dictated by a set pattern programmed into a computer.
I could press a button on a machine after an algorithm which runs over the ball of your foot and the underside of your foot
and a technology which is emerging 3d printing. There is an intersection between these two technologies to achieve something
Now with 3d printing you can scan your foot and you can scan an insole or even a whole sole or the whole shoe at some point. he designer and the chiropodist can say that you need to remove some material here
Kepler says it will still undergo a rigorous environmental impact assessment during the planning process to ensure that it poses no significant risk to marine life and to other users of the sea.
while giving energy users access to all the familiar technology they want and need. How can it achieve this promise?
and mobile phones, Gan has efficient light emission capability, something silicon cannot duplicate. But silicon remains the defacto material of choice semidconductors
and transistors found in all the computing devices of our modern world. CEI, through Gan, hopes to change because not only is the material more efficient in light emission,
faster computers, and smaller form factors. For example a Gan power adapter can be integrated into a laptop
and other electronic devices eliminating the clunky brick that is commonly comes with a device's power cord.
Massachusetts institute of technology, the brain trust from which CEI was hatched believes using Gan in data servers, electric vehicle inverters
and THE FUTURIST magazine blog portion of this site are the intellectual property of the authors,
2015-One of my readers who follows my blog through Linkedin admonished me a couple of weeks ago for being too critical of the fossil fuel industry.
July 28, 2015-If you are a regular reader of this blog then you have read about the importance of our research into stem cells and their therapeutic value.
Building accurate computer reconstructions of historical global precipitation is tricky business. The statistical models are complicated very the historical data is often full of holes
and researchers invariably have to make educated guesses at correcting for sampling errors. Hard sciencethe high degree of difficulty and expertise required means that relatively few climate scientists have been able to base their research on accurate models of historical precipitation.
Now a new software program developed by a research team including San diego State university Distinguished Professor of Mathematics
Now anybody can play with this user friendly software use it to inform their research and develop new models and hypotheses.
The problem for historical models is that reliable data exists from only a small percentage of Earth's surface.
Satellite weather tracking is only a few decades old so for historical models researchers must fill in the gaps based on the data that does exist.
Shen and his SDSU graduate students Nancy Tafolla and Barbara Sperberg produced a user friendly technologically advanced piece of software that does the statistical heavy lifting for researchers.
SOGP 1. 0 which stands for a statistical technique known as spectral optimal gridding of precipitation is based on the MATLAB programming language commonly used in science and engineering.
New tool for climate change modelsfor example Shen referenced a region in the middle of the Pacific ocean that sometimes glows bright red on the computer model indicating extreme dryness
Combining this data with land-record data the model can retroactively demonstrate the Dust bowl's especially brutal dry spell.
Shen hopes that its ease of use will encourage climate scientists to incorporate this historical data into their own models improving our future predictions of climate change.
Researchers interested in using SOGP 1. 0 can request the software package as well as the digital datasets used by the program by e-mailing sogp. precip@gmail. com with the subject line SOGP precipitation product request followed by your name
It was applied furthermore in the data of 14 EU countries in the period between 1961 and 2009.
When applied to farm and country level data the results reveal that the nutrient outflows are much more stable over time compared with the net inflows.
Unfortunately this indicator is sensitive to random fluctuations due to weather measurement errors and other noise in data
Users take a small water sample and mix it with an enzyme substrate a nutrient that activates certain enterobacteria
The idea for the coating evolved from SLIPS a pioneering surface technology developed by coauthor Joanna Aizenberg Ph d. who is a Wyss Institute Core Faculty member and the Amy Smith Berylson Professor of Materials science at Harvard SEAS.
and designed said Peng Yin senior author of the paper Wyss Core Faculty member and Assistant professor of Systems Biology at Harvard Medical school.
For the very first time a general strategy to manufacture inorganic nanoparticles with user-specified 3d shapes has been achieved to produce particles as small as 25 nanometers or less with remarkable precision (less than 5 nanometers.
and meticulously planned using computer design software. Using the software the researchers design three-dimensional frameworks of the desired size
and shape built from linear DNA sequences which attract and bind to one another in a predictable manner.
This capability should open up entirely new strategies for fields ranging from computer miniaturization to energy and pathogen detection.
All have shipped their inventions to Delhi where they will be on display March 22 for scientists engineers and dignitaries.
and transferred to the fiber-optic cable system--similar in some ways to a data transmission line--can heat up the reaction chamber to over 600 degrees Fahrenheit to treat the waste material disinfect pathogens in both feces and urine and produce char.
While the current toilet has been created to serve four to six people a day a larger facility that could serve several households simultaneously is under design with the target of meeting a cost level of five cents a day per user set by the Gates Foundation.
Sensor-based irrigation systems show potential to increase greenhouse profitability Wireless sensor-based irrigation systems can offer significant benefits to greenhouse operators.
and then applied the methodology to data from gardenia production in a Georgia nursery. The most convenient method (of calculating profitability) is converting all revenues and costs to constant periodic payments;
The scientists found that controlling irrigation using data from moisture sensors led to substantial reductions in both production time and crop losses.
offers the possibility that such devices may soon be as small as a typical smartphone.
and that excites the quartz tuning fork.""The tuning fork is a piezoelectric element, so when the wave causes it to vibrate,
Tittel is the J. S. Abercrombie Professor in Electrical and Computer engineering and a professor of bioengineering.
Wright team is now looking to find out how easy it is for users. The USAID competition was intended actually for systems built for individual farms,
The latest buzz in the information technology industry regards he Internet of thingsthe idea that vehicles, appliances, civil-engineering structures, manufacturing equipment,
and even livestock would have embedded their own sensors that report information directly to networked servers,
an MIT graduate student in electrical engineering and computer science and first author on the new paper. e need to regulate the input to extract the maximum power,
Nanoparticles made from these polymers have a hydrophobic core and a hydrophilic shell. Due to molecular-scale forces
BPA, another endocrine-disrupting synthetic compound widely used in plastic bottles and other resinous consumer goods, from thermal printing paper samples;
and a processor to run the show. The Trakür is no exception. Developed in the suburbs of Buenos aires by INTA's rural engineering division, the yellow and white robot resembles a child's Tonka truck (the chassis) with a lighthouse (the sprayer) strapped to the top.
A wireless transmitter on the robot sends camera video and sensor data such as the unit's speed,
and the amount of remaining chemical to a computer outside the greenhouse, where an operator directs the Trakür virtually.
or cameras and algorithms or satellite GPS, this is guided by a cable that emits a electromagnetic signal.
These sensors connect to backend servers that process the data collected, and the information is displayed as requested by the customer.
or her field using a mobile phone, personal digital assistant or PC. Information that is collected includes temperature, humidity, and soil nutrients.
The solution was developed by Bulut Ersavas, a former electronics engineer with IBM and Sun who got the idea for a water-monitoring system
while he was earning his MBA. Val Babajov, president of Climateminder, says his company's goal is to help agricultural concerns produce the same yield with less water.
But the equally colossal pieces of Styrofoam that protected the computer in shipping more than two decades ago are gone long,
which could even be your computer or TV. Steelcase one of the largest office furniture makers in the world--they ve been really happy with Ecocradle,
We re launching Ecocradle in the computer market. There s one big client that will be using it (we will be releasing the name in a couple weeks.
#Google maps goes underground"in Japan's radioactive zone"This is not a place you'd want to hang around for too long Google is producing underground street maps of Japan's nuclear exclusion zone.
The radiation levels near the Fukushima site are spiking to record levels, but that hasn't stopped Google's Streetview from entering one area of the forbidden'zone.
The images are from 17 cities within Japan's Iwate and Miyagi prefectures, which were damaged heavily by the 2011 tsunami,
Google has catalogued also the interiors of over 70 flood-damaged buildings in the region. The panoramic images are an update to ones taken shortly after the disaster.
Google says that it has a higher social purpose. Our digital archiving project aims not only to make a record of the disaster's wreckage,
and Miyagi Prefectures for the first time since we#published the first panoramas back in 2011, Google's group product manager,
Kei Kawai, wrote on the team's#blog. By releasing this new imagery on Google maps
we hope people in Japan and from all around the world can virtually explore what these towns currently look like
Google is not the first nongovernmental entity to enter the exclusion zone. Organizations including#Animal Friends Niigata
Google maps, David Worthington) Related on Smartplanet: What the NRC really knew about Fukushima Fukushima ocean radiation could pose sleeper threat Nuclear meltdowns nearly made northern Japan uninhabitable do need we to worry about radiation in our milk?
Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011