What are you looking for ? 

Custom Search


 



Computers & Math In the News ...

The mathematics of prey detection in spider orb-webs
Posted on Thursday December 12, 2019

Spider webs are one of nature's most fascinating manifestations. Many spiders extrude proteinaceous silk to weave sticky webs that ensnare unsuspecting prey who venture into their threads. Despite their elasticity, these webs possess incredible tensile strength. Researchers present a theoretical mechanical model to study the inverse problem of source identification and localize a prey in a spider orb-web.

First mathematical proof for key law of turbulence in fluid mechanics
Posted on Wednesday December 11, 2019

Turbulence is one of the least understood phenomena of the physical world. Long considered too hard to understand and predict mathematically, turbulence is the reason the Navier-Stokes equations, which describe how fluids flow, are so hard to solve that there is a million-dollar reward for anyone who can prove them mathematically. But now, mathematicians have broken through the barrier and developed the first rigorous mathematical proof for a fundamental law of turbulence.

Teams of microbes are at work in our bodies. Here's how to figure out what they're doing
Posted on Wednesday December 11, 2019

An algorithm akin to the annoyingly helpful one that attempts to auto-complete text messages and emails is now being harnessed for a better cause. A group of researchers are using its pattern-recognition ability to identify microbial communities in the body by sifting through volumes of genetic code. Their method could speed the development of medical treatments for microbiota-linked ailments like Crohn's disease.

Azteca ant colonies move the same way leopards' spots form
Posted on Wednesday December 11, 2019

What could Azteca ants in coffee farms in Mexico have in common with leopards' spots and zebras' stripes?

Heat energy leaps through empty space, thanks to quantum weirdness
Posted on Wednesday December 11, 2019

A surprising new study shows that heat energy can leap across a few hundred nanometers of a complete vacuum, thanks to a quantum mechanical phenomenon called the Casimir interaction. Though this interaction is only significant on very short length scales, it could have profound implications for the design of computer chips and other nanoscale electronic components where heat dissipation is key, while upending what many of us learned about heat transfer in high school physics.

A digital approach to proteins and cancer
Posted on Wednesday December 11, 2019

What if scientists could create more effective drugs to treat cancers and other diseases by better targeting specific sites on proteins in the body?

Deep learning helps tease out gene interactions
Posted on Tuesday December 10, 2019

Computer scientists have taken a deep learning method that has revolutionized face recognition and other image-based applications in recent years and redirected its power to explore the relationship between genes.

Physicists image electrons flowing like water
Posted on Tuesday December 10, 2019

Physicists have imaged electrons flowing viscously through a nanodevice, just like water flowing through a pipe. Long predicted but only now visualized for the first time, this curious new behavior for electrons has important implications for future electronic devices.

Communications device offers huge bandwidth potential
Posted on Tuesday December 10, 2019

Several countries are building futuristic communication systems using higher frequency electromagnetic waves to transfer more data at faster rates, but they have lacked network components to handle these higher bandwidths. A researcher has now demonstrated that his new device can rapidly switch functionality to perform the varied tasks needed to support a network with carrier frequencies of over 100 gigahertz. The miniscule-scale architecture is concealed within sugar cube size blocks.

Insects' drag-based flight mechanism could improve tiny flying robots
Posted on Tuesday December 10, 2019

Thrips don't rely on lift in order to fly. Instead, the tiny insects rely on a drag-based flight mechanism, staying afloat in airflow velocities with a large ratio of force to wing size. Researchers have performed the first test of drag force on a thrip's wing under constant airflow in a bench-top wind tunnel and, drawing from microfabrication and nanomechanics, they created an experiment in which a thrip's wing was glued to a self-sensing microcantilever.

New laser technique images quantum world in a trillionth of a second
Posted on Tuesday December 10, 2019

For the first time, researchers have been able to record, frame-by-frame, how an electron interacts with certain atomic vibrations in a solid. The technique captures a process that commonly causes electrical resistance in materials while, in others, can cause the absence of resistance, or superconductivity.

How to induce magnetism in graphene
Posted on Tuesday December 10, 2019

Graphene, a two-dimensional structure made of carbon, is a material with excellent mechanical, electronic and optical properties. However, it did not seem suitable for magnetic applications. Researchers have now succeeded in synthesizing a unique nanographene predicted in the 1970s, which conclusively demonstrates that carbon in very specific forms has magnetic properties that could permit future spintronic applications.

Breakthrough in 'distributed deep learning'
Posted on Monday December 09, 2019

Computer scientists, using a divide-and-conquer approach that leverages the power of compressed sensing, have shown they can train the equivalent of a 100 billion-parameter distributed deep learning network on a single machine in less than 35 hours for product search and similar extreme classification problems.

Reorganizing a computer chip: Transistors can now both process and store information
Posted on Monday December 09, 2019

Researchers have created a more feasible way to combine transistors and memory on a chip, potentially bringing faster computing.

Researcher designs headphones that warn pedestrians of dangers
Posted on Monday December 09, 2019

To counter a growing public safety concern, researchers are designing an intelligent headphone system that warns pedestrians of imminent dangers.

Storing data in everyday objects
Posted on Monday December 09, 2019

Researchers have discovered a new method for turning nearly any object into a data storage unit. This makes it possible to save extensive data in, say, shirt buttons, water bottles or even the lenses of glasses, and then retrieve it years later. The technique also allows users to hide information and store it for later generations. It uses DNA as the storage medium.

Demonstration of high-speed SOT-MRAM memory cell compatible with 300mm Si CMOS technology
Posted on Monday December 09, 2019

Researchers have announced the demonstration of high-speed spin-orbit-torque magnetoresistive random access memory cell compatible with 300 mm Si CMOS technology.

Computer game may help to predict reuse of opioids
Posted on Sunday December 08, 2019

A computer betting game can help predict the likelihood that someone recovering from opioid addiction will reuse the pain-relieving drugs, a new study shows.

Gamma-ray laser moves a step closer to reality
Posted on Friday December 06, 2019

A physicist has performed calculations showing hollow spherical bubbles filled with a gas of positronium atoms are stable in liquid helium. The calculations take scientists a step closer to realizing a gamma-ray laser.

Developing a digital twin of a vehicle
Posted on Thursday December 05, 2019

In the not too distant future, we can expect to see our skies filled with unmanned aerial vehicles delivering packages, maybe even people, from location to location. Researchers are developing 'digital twins' that combine computational models and machine learning to predict vehicle health and enable autonomous decision-making at the edge.

Mobile devices blur work and personal privacy raising cyber risks
Posted on Thursday December 05, 2019

Organizations aren't moving quickly enough on cyber security threats linked to the drive toward using personal mobile devices in the workplace.

A platform for stable quantum computing, a playground for exotic physics
Posted on Thursday December 05, 2019

Researchers have demonstrated the first material that can have both strongly correlated electron interactions and topological properties, which not only paves the way for more stable quantum computing but also an entirely new platform to explore the wild world of exotic physics.

Water animation gets easier
Posted on Thursday December 05, 2019

A team of computer science professors created a method to quickly resize animations of fluids without having to completely re-simulate the entire sequence.

Fusion by strong lasers
Posted on Thursday December 05, 2019

Nuclear physics usually involves high energies, as illustrated by experiments to master controlled nuclear fusion. One problem is how to overcome the strong electrical repulsion between atomic nuclei which requires high energies to make them fuse. But fusion could be initiated at lower energies with electromagnetic fields that are generated by state-of-the-art free electron lasers emitting X-ray light. Researchers describe how this could be done.

Scientists see defects in potential new semiconductor
Posted on Thursday December 05, 2019

A research team has reported seeing, for the first time, atomic scale defects that dictate the properties of a new and powerful semiconductor. The study shows a fundamental aspect of how the semiconductor, beta gallium oxide, controls electricity.

A robot and software make it easier to create advanced materials
Posted on Thursday December 05, 2019

A team of engineers has developed an automated way to produce polymers, making it much easier to create advanced materials aimed at improving human health. The innovation is a critical step in pushing the limits for researchers who want to explore large libraries of polymers, including plastics and fibers, for chemical and biological applications such as drugs and regenerative medicine through tissue engineering.

Your zip software can calculate the complex physical quantity called entropy
Posted on Wednesday December 04, 2019

A new study proposes a radically simple and efficient way of calculating the complex physical quantity known as entropy -- and it probably exists on your own computer.

Like Pavlov's dog, this thermoplastic is learning a new trick: Walking
Posted on Wednesday December 04, 2019

Researchers are 'training' pieces of plastic to walk under the command of light. The method developed is the first time a synthetic actuator 'learns' to do new 'tricks' based on its past experiences, without computer programming.

Siting cell towers needs careful planning
Posted on Tuesday December 03, 2019

The health impacts of radio-frequency radiation (RFR) are still inconclusive, but the data to date warrants more caution in placing cell towers. An engineering team considers the current understanding of health impacts and possible solutions, which indicate a 500-meter (one third of a mile) buffer around schools and hospitals may help reduce risk for vulnerable populations.

Successful instrument guidance through deep and convoluted blood vessel networks
Posted on Tuesday December 03, 2019

Researchers have developed a novel approach to tackling one of the biggest challenges of endovascular surgery: how to reach the most difficult-to-access physiological locations. Their solution is a robotic platform that uses the fringe field generated by the superconducting magnet of a clinical MRI scanner to guide medical instruments through deeper and more complex vascular structures. The approach has been successfully demonstrated in-vivo.

Detecting solar flares, more in real time
Posted on Tuesday December 03, 2019

Computers can learn to find flares and other events in vast streams of solar images to help forecasters issue timely alerts, according to a new study. The machine-learning technique searches satellite data for features significant for space weather. Changing conditions on the Sun can affect various technologies on Earth, blocking radio communications, damaging power grids, and diminishing navigation system accuracy.

Study sheds light on the peculiar 'normal' phase of high-temperature superconductors
Posted on Tuesday December 03, 2019

Every character has a back story, and so do high-temperature superconductors, which conduct electricity with no loss at much higher temperatures than scientists once thought possible. Recent experiments have probed the normal state more accurately than ever before and discover an abrupt shift in the behavior of electrons in which they suddenly give up their individuality and behave like an electron soup.

Mass-producible, centimeter-scale metalens for VR, imaging
Posted on Tuesday December 03, 2019

Metalenses -- flat surfaces that use nanostructures to focus light -- are poised to revolutionize everything from microscopy to cameras, sensors, and displays. But so far, most of the lenses have been about the size of a piece of glitter. While lenses this size work well for some applications, a larger lens is needed for low-light conditions, such as an imaging system onboard orbital satellites, and VR applications, where the lens needs to be larger than a pupil.

Virtual reality could help flu vaccination rates
Posted on Tuesday December 03, 2019

Using a virtual reality simulation to show how flu spreads and its impact on others could be a way to encourage more people to get a flu vaccination, according to a new study.

Machine learning that works like a dream
Posted on Tuesday December 03, 2019

Researchers have developed a machine learning algorithm that classifies the sleep stages of mice with record accuracy. This work may be used to greatly enhance the field of sleep research.

Fake news feels less immoral to share when we've seen it before
Posted on Tuesday December 03, 2019

People who repeatedly encounter a fake news item may feel less and less unethical about sharing it on social media, even when they don't believe the information, research indicates.

Bending an organic semiconductor can boost electrical flow
Posted on Tuesday December 03, 2019

Slightly bending semiconductors made of organic materials can roughly double the speed of electricity flowing through them and could benefit next-generation electronics such as sensors and solar cells, according to new research.

Carpentry Compiler helps woodworkers design objects that they can actually make
Posted on Tuesday December 03, 2019

Researchers have created Carpentry Compiler, a digital tool that allows users to design woodworking projects. Once a project is designed, the tool creates optimized fabrication instructions based on the materials and equipment a user has available.

Through the eyes of animals
Posted on Tuesday December 03, 2019

Humans are now closer to seeing through the eyes of animals, thanks to an innovative software framework.

Helping machines perceive some laws of physics
Posted on Tuesday December 03, 2019

Researchers have designed a model that demonstrates an understanding of some basic 'intuitive physics' about how objects should behave. The model could be used to help build smarter artificial intelligence and, in turn, provide information to help scientists understand infant cognition.

A trick for taming terahertz transmissions
Posted on Monday December 02, 2019

Researchers have invented a wireless communication receiver that can operate in the terahertz frequency band. By increasing the sensitivity 10,000-fold, they achieved the fastest Researchers invent a new receiver for terahertz-frequency radiation -- by implementing coherent detection, they achieve record transmission rates -- this work may lead to much faster wireless data speeds using less power.real-time error-free transmission rates ever recorded. This work may be crucial for next generation cell phone standards and novel remote sensors.

This 'fix' for economic theory changes everything from gambles to Ponzi schemes
Posted on Monday December 02, 2019

Whether we decide to take out that insurance policy, buy Bitcoin, or switch jobs, many economic decisions boil down to a fundamental gamble about how to maximize our wealth over time. How we understand these decisions is the subject of a new perspective piece that aims to correct a foundational mistake in economic theory.

Controlling the optical properties of solids with acoustic waves
Posted on Monday December 02, 2019

Physicists have found that large-amplitude acoustic waves, launched by ultrashort laser pulses, can dynamically manipulate the optical response of semiconductors.

Potential solution to overheating mobile phones
Posted on Monday December 02, 2019

Researchers have developed a revolutionary way to encode computational information without using electrical current. As a global first, this could lead to faster technological devices that could efficiently use energy without overheating.

New device enables battery-free computer input at the tip of your finger
Posted on Monday December 02, 2019

Computer scientists have created a device for wearable computer input suitable for many situations, just by touching your fingertips together in different ways. The device, called Tip-Tap, is inexpensive and battery-free through the use of radio frequency identification (RFID) tags to sense when fingertips touch. The device could, therefore, be added to disposable surgical gloves, allowing surgeons to access preoperative planning diagrams in an operating room.

Additive manufacturing and NI/TI metal bolster cooling technology
Posted on Thursday November 28, 2019

Scientists have developed a novel elastocaloric cooling material, comprised of a nickel (Ni)-titanium (Ti) alloy and sculpted using additive technology, that is highly efficient, eco-friendly and easily scaled-up for commercial use.

Toward more efficient computing, with magnetic waves
Posted on Thursday November 28, 2019

Researchers have devised a novel circuit design that enables precise control of computing with magnetic waves -- with no electricity needed. The advance takes a step toward practical magnetic-based devices, which have the potential to compute far more efficiently than electronics.

Researchers hope to use big data to make pipelines safer
Posted on Wednesday November 27, 2019

Researchers look at the methodologies currently used by industry and academics to predict pipeline failure and their limitations. Researchers found that the existing academic literature and industry practices around pipeline failures need to further evolve around available maintenance data.

New way to identify, manipulate topological metals for spintronics
Posted on Wednesday November 27, 2019

A recent study gives researchers an easier way of finding Weyl semimetals and manipulating them for potential spintronic devices.

A new theory for how black holes and neutron stars shine bright
Posted on Wednesday November 27, 2019

Astrophysicists employed massive super-computer simulations to calculate the mechanisms that accelerate charged particles in extreme environments. They concluded their energization is powered by the interplay of chaotic motion and reconnection of super-strong magnetic fields.

A method with roots in AI uncovers how humans make choices in groups and social media
Posted on Wednesday November 27, 2019

Using a mathematical framework with roots in artificial intelligence and robotics, researchers were able to uncover the process for how a person makes choices in groups. And, they also found they were able to predict a person's choice more often than more traditional descriptive methods.

Need to safeguard drones and robotic cars against cyber attacks
Posted on Wednesday November 27, 2019

Researchers executed successful stealth attacks on real and simulated robotic vehicles, revealing vulnerabilities in the attack detection system most commonly used by such vehicles.

Building a better battery with machine learning
Posted on Wednesday November 27, 2019

Researchers have turned to the power of machine learning and artificial intelligence to dramatically accelerate battery discovery.

Atomic-scale manufacturing method could enable ultra-efficient computers
Posted on Wednesday November 27, 2019

As computers continue to infiltrate almost every aspect of modern life, their negative impact on the environment grows. According to recent estimates, the electricity required to power today's computers releases a total of more than 1 gigatonne of carbon emissions to the atmosphere each year. Now, researchers have developed a new manufacturing process that could enable ultra-efficient atomic computers that store more data and consume 100 times less power.

Artificial intelligence-based algorithm for intensive care of traumatic brain injury
Posted on Wednesday November 27, 2019

A recent study presents the first artificial intelligence (AI) based algorithm that may be utilized in the intensive care unit for treating patients with severe traumatic brain injury.

Molecular eraser enables better data storage and computers for AI
Posted on Wednesday November 27, 2019

Scientists have added a crucial tool to the atomic-scale manufacturing toolkit with major implications for today's data driven -- carbon-intensive -- world, according to new research.

How to measure inequality as 'experienced difference'
Posted on Wednesday November 27, 2019

Researchers propose a novel twist on the widely used Gini coefficient -- a workhorse statistical measure for gauging the gap between haves and have-nots.

Smooth operator: When earnings management is a good thing
Posted on Tuesday November 26, 2019

New research makes the case that 'smoothing the numbers' can be beneficial -- if you have the right team in place to handle the job.

Satellite broken? Smart satellites to the rescue
Posted on Tuesday November 26, 2019

Scientists are developing robotic networks that can work independently but collaboratively on a common task. The goal? To make smart satellites that can repair other satellites in space.

New technology makes internet memes accessible for people with visual impairments
Posted on Tuesday November 26, 2019

People with visual impairments use social media like everyone else, often with the help of screen reader software. But that technology falls short when it encounters memes, which don't include alternate text, or alt text, to describe what's depicted in the image. To counter this, researchers at Carnegie Mellon University have developed a method to automatically identify memes and apply prewritten templates to add descriptive alt text, making them intelligible via existing assistive technologies.


 

 

 

 

 

Back to Top BACK TO TOP