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Categories: Mathematics: Modeling, Physics: General

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Published

A genetic algorithm for phononic crystals      (via sciencedaily.com)     Original source 

Researchers tested phononic nanomaterials designed with an automated genetic algorithm that responded to light pulses with controlled vibrations. This work may help in the development of next-generation sensors and computer devices.

Computer Science: General Mathematics: Modeling Physics: General Space: Astrophysics Space: Exploration Space: General Space: The Solar System
Published

Machine learning could aid efforts to answer long-standing astrophysical questions      (via sciencedaily.com)     Original source 

Physicists have developed a computer program incorporating machine learning that could help identify blobs of plasma in outer space known as plasmoids. In a novel twist, the program has been trained using simulated data.

Chemistry: General Chemistry: Inorganic Chemistry Physics: General
Published

Mapping the surfaces of MXenes, atom by atom, reveals new potential for the 2D materials      (via sciencedaily.com)     Original source 

In the decade since their discovery, the family of two-dimensional materials called MXenes has shown a great deal of promise for applications ranging from water desalination and energy storage to electromagnetic shielding and telecommunications, among others. While researchers have long speculated about the genesis of their versatility, a recent study has provided the first clear look at the surface chemical structure foundational to MXenes' capabilities.

Biology: Biochemistry Biology: General Biology: Marine Chemistry: Biochemistry Ecology: Sea Life Energy: Alternative Fuels Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Giant clams may hold the answers to making solar energy more efficient      (via sciencedaily.com)     Original source 

Solar panel and biorefinery designers could learn a thing or two from iridescent giant clams living near tropical coral reefs, according to a new study. This is because giant clams have precise geometries -- dynamic, vertical columns of photosynthetic receptors covered by a thin, light-scattering layer -- that may just make them the most efficient solar energy systems on Earth.

Chemistry: Inorganic Chemistry Energy: Nuclear Environmental: General Physics: General Physics: Optics
Published

Nuclear spectroscopy breakthrough could rewrite the fundamental constants of nature      (via sciencedaily.com)     Original source 

Raising the energy state of an atom's nucleus using a laser, or exciting it, would enable development of the most accurate atomic clocks ever to exist. This has been hard to do because electrons, which surround the nucleus, react easily with light, increasing the amount of light needed to reach the nucleus. By causing the electrons to bond with fluorine in a transparent crystal, UCLA physicists have finally succeeded in exciting the neutrons in a thorium atom's nucleus using a moderate amount of laser light. This accomplishment means that measurements of time, gravity and other fields that are currently performed using atomic electrons can be made with orders of magnitude higher accuracy.

Offbeat: General Offbeat: Space Physics: General Physics: Quantum Computing Physics: Quantum Physics Space: General
Published

Neutrons on classically inexplicable paths      (via sciencedaily.com)     Original source 

Is nature really as strange as quantum theory says -- or are there simpler explanations? New neutron measurements prove: It doesn't work without the strange properties of quantum theory.

Energy: Alternative Fuels Environmental: General Mathematics: Modeling
Published

Moving beyond the 80-year-old solar cell equation      (via sciencedaily.com)     Original source 

Physicists have made a significant breakthrough in solar cell technology by developing a new analytical model that improves the understanding and efficiency of thin-film photovoltaic (PV) devices.

Mathematics: Modeling
Published

AI model finds the cancer clues at lightning speed      (via sciencedaily.com)     Original source 

AI model finds the cancer clues at lightning speed. Researchers have developed an AI model that increases the potential for detecting cancer through sugar analyses. The AI model is faster and better at finding abnormalities than the current semi-manual method.

Mathematics: Modeling
Published

Can A.I. tell you if you have osteoporosis? Newly developed deep learning model shows promise      (via sciencedaily.com)     Original source 

Researchers have developed a novel deep learning algorithm that outperformed existing computer-based osteoporosis risk prediction methods, potentially leading to earlier diagnoses and better outcomes for patients with osteoporosis risk.

Mathematics: Modeling
Published

Study reveals why AI models that analyze medical images can be biased      (via sciencedaily.com)     Original source 

Researchers have found that artificial intelligence models that are most accurate at predicting race and gender from X-ray images also show the biggest 'fairness gaps' -- that is, discrepancies in their ability to accurately diagnose images of people of different races or genders.

Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Visual explanations of machine learning models to estimate charge states in quantum dots      (via sciencedaily.com)     Original source 

To form qubit states in semiconductor materials, it requires tuning for numerous parameters. But as the number of qubits increases, the amount of parameters also increases, thereby complicating this process. Now, researchers have automated this process, overcoming a significant barrier to realizing quantum computers.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular Mathematics: Modeling
Published

New deep-learning model outperforms Google AI system in predicting peptide structures      (via sciencedaily.com)     Original source 

Researchers have developed a deep-learning model, called PepFlow, that can predict all possible shapes of peptides -- chains of amino acids that are shorter than proteins, but perform similar biological functions. Peptides are known to be highly flexible, taking on a wide range of folding patterns, and are thus involved in many biological processes of interest to researchers in the development of therapeutics.

Chemistry: Thermodynamics Energy: Technology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Characterization of the extraordinary thermoelectric properties of cadmium arsenide thin films      (via sciencedaily.com)     Original source 

If there's one thing we humans are good at, it's producing heat. Significant amounts, and in many cases most of the energy we generate and put into our systems we lose as heat, whether it be our appliances, our transportation, our factories, even our electrical grid.

Computer Science: General Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Understanding quantum states: New research shows importance of precise topography in solid neon qubits      (via sciencedaily.com)     Original source 

A new study shows new insight into the quantum state that describes the condition of electrons on an electron-on-solid-neon quantum bit, information that can help engineers build this innovative technology.

Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

A chip-scale Titanium-sapphire laser      (via sciencedaily.com)     Original source 

With a single leap from tabletop to the microscale, engineers have produced the world's first practical Titanium-sapphire laser on a chip, democratizing a once-exclusive technology.

Offbeat: General Offbeat: Space Physics: General Physics: Quantum Computing Physics: Quantum Physics Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Precision instrument bolsters efforts to find elusive dark energy      (via sciencedaily.com)     Original source 

Dark energy -- a mysterious force pushing the universe apart at an ever-increasing rate -- was discovered 26 years ago, and ever since, scientists have been searching for a new and exotic particle causing the expansion. Physicists combined an optical lattice with an atom interferometer to hold atoms in place for up to 70 seconds -- a record for an atom interferometer -- allowing them to more precisely test for deviations from the accepted theory of gravity that could be caused by dark energy particles such as chameleons or symmetrons. Though they detected no anomalies, they're improving the experiment to perform more sensitive tests of gravity, including whether gravity is quantized.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Engineering: Nanotechnology Physics: General Physics: Optics
Published

A new study highlights potential of ultrafast laser processing for next-gen devices      (via sciencedaily.com)     Original source 

A new study uncovers the remarkable potential of ultrafast lasers that could provide innovative solutions in 2D materials processing for many technology developers such as high-speed photodetectors, flexible electronics, biohybrids, and next-generation solar cells.

Chemistry: General Chemistry: Inorganic Chemistry Physics: General Physics: Optics
Published

Novel application of optical tweezers: Colorfully showing molecular energy transfer      (via sciencedaily.com)     Original source 

Using a novel non-contact approach, a research team has successfully controlled the speed and efficiency of Forster resonance energy transfer between fluorescent molecules by varying the intensity of a laser beam.