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Plasma arc cutting: PNU and KIMM scientists together decode gas flow dynamics

Researchers develop novel methods to visualize and understand gas flow dynamics in plasma arc cutting, improving cut quality and efficiency. They found that curved cutting fronts result in oblique shockwave structures, which reduce flow velocity and can lead to safer and more efficient dismantling of nuclear facilities.

SourcePusan National University·JournalInternational Communications in Heat and Mass Transfer·TypeComputational simulation/modeling·DateFeb 20, 2025
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

The black hole M87*: What has changed in one year

The EHT Collaboration unveils a new analysis of the supermassive black hole at the heart of galaxy M87, combining observations from 2017 and 2018. The study confirms the presence of a luminous ring with a shifted brightest region, indicating turbulent accretion disk dynamics.

SourceGoethe University Frankfurt·JournalAstronomy and Astrophysics·TypeObservational study·DateJan 23, 2025

New UVA professor’s research may boost next-generation space rockets

A UVA professor has made new discoveries about electron kinetic behavior within plasma beams, potentially revealing the 'shape' of future space technology. The findings could lead to more efficient and reliable electric propulsion systems for long-duration space missions.

SourceUniversity of Virginia School of Engineering and Applied Science·JournalPlasma Sources Science and Technology·TypeComputational simulation/modeling·DateJan 3, 2025

Popping a champagne cork reveals propulsive dynamics

The study found that pressure forces at the cork's base control its motion, with friction forces playing a decisive role. The researchers also discovered the formation of Mach discs, which can be used to determine gas pressure or temperature inside a champagne bottle.

SourceCambridge University Press·JournalFlow·TypeComputational simulation/modeling·DateJan 23, 2024

Incheon National University researchers push the limits of gas sensing technology

The researchers propose a hybrid organic–inorganic gas sensor design that enhances gas sensing performance while maintaining sensing speed. The proposed design outperforms conventional sensors in terms of chemical sensitivity to NO2, showcasing impressive durability and higher potential for long-term installation.

SourceIncheon National University·JournalChemical Engineering Journal·TypeExperimental study·DateNov 9, 2023

Greenhouse gas supplement increases warming and alters circulation patterns on Earth and Earth-like exoplanets

The study found that adding CO2 to temperate terrestrial exoplanet atmospheres intensifies warming in non-irradiated regions, altering global circulation patterns. This effect is seen on both Earth and the exoplanet TRAPPIST-1e, with implications for habitability and climate research.

SourceThe Hebrew University of Jerusalem·JournalNature·TypeComputational simulation/modeling·DateJul 12, 2023
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Astrophysics: Scientists observe high-speed star formation

A team of scientists observed the dynamic formation process of interstellar gas clouds, revealing speeds of up to 20 km/s that compress gas into denser regions where massive stars form. The findings challenge previous assumptions of slow and quasi-static star formation processes in this region.

SourceUniversity of Cologne·JournalNature Astronomy·TypeObservational study·DateFeb 17, 2023

New wind field models accurately describe wind gusts

Researchers at the University of Oldenburg have developed a new statistical model that accurately describes wind turbulence and generates fully three-dimensional wind fields using limited measurement points. This breakthrough enables precise wind turbine load estimation and improves wind farm planning, with applications in various fiel...

SourceUniversity of Oldenburg·JournalPRX Energy·TypeData/statistical analysis·DateNov 15, 2022

Cosmic rays may be key to understanding galactic dynamics

Recent studies suggest that cosmic rays, originating from supernova remnants and pulsars, have a significant impact on galactic dynamics and star formation. The streaming instability triggered by cosmic rays in the interstellar medium can create plasma waves that heat and scatter gas, influencing the formation of planets and stars.

SourceAmerican Institute of Physics·JournalPhysics of Plasmas·DateAug 24, 2021

Giving atoms their marching orders

Scientists at the University of South Carolina and University of Florida have created a new system for studying gas flow in narrow tubes with single-file atom movement. By comparing these nanotubes to wider tubes, researchers aim to understand fundamental processes involved in gas separation and membrane technology.

SourceUniversity of South Carolina·JournalACS Nano·DateJun 24, 2015
Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

New method for greenhouse gas predictions

A new dynamic mathematical model estimates variation in greenhouse gas emissions in response to changes in wastewater management systems. The study provides more accurate and detailed predictions than current steady-state models, with implications for industries seeking to reduce their carbon footprint.

SourceConcordia University·JournalEnvironmental Science and Pollution Research·DateMar 5, 2013

Expert challenges earthquake theory behind Indonesian mud volcano

A leading expert challenges the theory that an Indonesian mud volcano was triggered by an earthquake. Professor Richard Davies of Durham University's Centre for Research into Earth Energy Systems says drilling operations are more likely to be responsible.

SourceDurham University·JournalEarth and Planetary Science Letters·DateJul 31, 2007
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.