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Search results for “Traveling Salesman Problem”

1,000+ results for "Traveling Salesman Problem"

Bringing the Kelvin problem solutions to life with the first-ever polymeric Weaire-Phelan structures

A Japanese research team successfully constructed the first polymeric Weaire-Phelan structure, a previously theoretical form predicted to be the most efficient solution for a century-old tessellation problem. The structure was achieved through a novel polymerization-induced phase separation method.

SourceShibaura Institute of Technology·JournalScientific Reports·TypeExperimental study·DateNov 28, 2022

Surface waves help map Mars interior

Scientists have detected seismic surface waves on Mars for the first time, providing new insights into the planet's crust and structure. The study estimates the average properties of the Martian crust between 3 to 18.6 miles below the surface, revealing faster seismic velocities that suggest compositional differences or reduced porosity.

SourceUniversity of Maryland·JournalScience·TypeComputational simulation/modeling·DateOct 27, 2022

Arecibo observatory scientists help unravel surprise asteroid mystery

The team at Arecibo Observatory successfully captured data on the mysterious asteroid 2019 OK, revealing it was a fast-rotating C-type or S-type asteroid with a diameter of .04 to .08 miles. The findings provide insights into asteroid composition and rotation rates, which can help inform deflection techniques to protect the planet.

SourceUniversity of Central Florida·JournalThe Planetary Science Journal·TypeObservational study·DateJun 23, 2022

Anesthetic drastically diverts the travels of brain waves

A new study by MIT scientists reveals that propofol anesthesia significantly alters the state of brain waves, with lower frequency delta waves dominating. Higher frequency beta waves decrease in structure and power, with their traveling nature disrupted by the surging delta waves. The findings suggest a profound impact on consciousness.

SourcePicower Institute at MIT·JournalJournal of Cognitive Neuroscience·TypeExperimental study·DateApr 27, 2022

SwRI scientists connect the dots between Galilean moon, auroral emissions on Jupiter

SwRI scientists studied particle population and auroral emissions on Jupiter, confirming a decade-old theory that electrons accelerated in both directions create the multi-spot dance of auroral footprints. The research also provided insights into the interaction between Ganymede's magnetic field and Jupiter's massive magnetosphere.

SourceSouthwest Research Institute·JournalGeophysical Research Letters·DateApr 5, 2022

‘Traveling’ nature of brain waves may help working memory work

Researchers found that brain waves travel in rotating patterns across the prefrontal cortex during working memory tasks, potentially aiding information storage. These waves provide a regularly recurring stimulation with precise timing, promoting strengthening connections between neurons and possibly facilitating predictions.

SourcePicower Institute at MIT·JournalPLOS Computational Biology·TypeExperimental study·DateJan 31, 2022

Light vs. data: Backpropagation advancing optical metrology and inverse design process

A new technique using thin-film neural networks (TFNNs) improves processing times for all-optical neural networks and enables fast optimization of photonic devices. The approach accelerates the design and fabrication of multilayer thin films, mimicking human retina cells.

Fishing for solutions to the plastic problem

A University of Adelaide study reveals that over 35% of fish caught off southern Australia contain microplastics, with the problem being most acute in South Australia. Simple actions like replacing plastic fishing equipment and using biodegradable bags can quickly reduce plastic pollution in the ocean.

SourceUniversity of Adelaide·JournalMarine Policy·TypeMeta-analysis·DateNov 16, 2021

A statistical fix for archaeology's dating problem

Archaeologists have developed a new statistical approach to overcome the challenges of radiocarbon dating, allowing for more accurate population estimates. The new method uses Bayesian reasoning and flexible probability models to combine radiocarbon dates with additional archaeological information.

SourceSanta Fe Institute·JournalJournal of Archaeological Science·TypeData/statistical analysis·DateSep 15, 2021

A multi-site, multi-disorder, resting-state magnetic resonance image database

A multi-site, multi-disorder resting-state magnetic resonance image database was compiled to harmonize data from patients with various diseases, measured at 14 sites. The dataset comprises over 2,400 samples and includes 'traveling-subject' data to minimize inter-site differences.

SourceATR Brain Information Communication Research Laboratory Group·JournalScientific Data·TypeData/statistical analysis·DateAug 30, 2021

Novel theory addresses centuries-old physics problem

A new study by Hebrew University researcher Professor Barak Kol introduces a novel approach to the three-body problem, predicting the probability of each body escaping the system. The theory avoids infinite probabilities and provides strong agreement with computer simulations, indicating a paradigm shift in understanding the system.

SourceThe Hebrew University of Jerusalem·JournalCelestial Mechanics and Dynamical Astronomy·DateApr 13, 2021

Urban squirrels, how much are we disturbing you?

Research finds that urban squirrels' success rates increase with repeated solving of a novel food-extraction task, suggesting adaptability to urban stressors. The study also reveals that direct human disturbance is a major stressor, while green coverage and squirrel population size have less impact on problem-solving performance.

Hassles with child car seats linked to unsafe child passenger behaviors

A study published in Academic Pediatrics found that parents who reported more child car seat hassles were less likely to follow American Academy of Pediatrics recommendations on child passenger safety. Parents who identified more hassles were more likely to have their children travel unrestrained or not use a car seat consistently.

'Missing ice problem' finally solved

Climate researchers at the Alfred Wegener Institute have developed a new method to reconcile sea-level height and glacier thickness, advancing our understanding of past climate history. By analyzing sediment cores and geological conditions, they found that glaciers were larger than previously thought, resolving the 'missing ice problem'.

Nebraska anglers are creatures of habit

A new study published in Ecological Applications reveals that Nebraska anglers tend to visit the same seven popular fishing spots consistently, drawn from the same ZIP codes throughout the year. This finding provides valuable insights for natural resource managers seeking to optimize lake management and sustainable fishing experiences.

SourceEcological Society of America·JournalEcological Applications·DateDec 9, 2020

Wound-healing waves

Cells utilize long-distance traveling waves in a self-organized manner to close wounds, guided by intricate interplay of cell movement, sensing, and protein activation. This coupled system enables robust communication of direction over large distances, promoting coordinated behavior for healing and growth.