Articles tagged with Energetics
A team of international researchers discovered four fast radio bursts from cosmological distances, suggesting they originate from extreme events involving relativistic objects. The findings provide a way to study space between galaxies and understand the properties of missing matter in the Universe.
Researchers develop equations to estimate parasite and host metabolic rates, providing a new way to understand the energetics of parasites. The model reveals that there is a limit to how many worms can be accommodated in a host, with energy being the key limiting factor.
Scientists from the University of New Hampshire and NASA's Goddard Space Flight Center explain how energetic particles create molecular hydrogen from water ice on the moon. They used data gathered by the Cosmic Ray Telescope for the Effects of Radiation to show that up to 100% of the H2 can be formed via charged particles.
AFOSR-funded research has led to the development of a new, environmentally benign propellant that is twice as powerful as hydrazine. This 'green' propellant reduces toxicity and offers improved safety properties.
Researchers at Stanford University have found that the majority of grid-scale battery technologies have high embodied-energy costs compared to pumped hydroelectric storage. Improved cycle life can reduce long-term energetic costs for batteries, making them a more practical option.
The Radiation Belt Storm Probes mission, led by the University of New Hampshire, has discovered a transient third radiation belt formed in the wake of a powerful solar event. The new belt was detected using the Relativistic Electron-Proton Telescope and is located at an inner edge of the outer electron belt.
The National Renewable Energy Laboratory (NREL) had a significant impact on Colorado's economy in FY 2012, with a total economic benefit of $814.8 million. The laboratory supported approximately 2,300 jobs and invested heavily in construction, including a new parking garage and energy-efficient building.
A new type of nanoscale engine uses quantum dots to convert waste heat into electrical power, potentially making microcircuits more efficient. The system exploits resonant tunneling and can generate a significant amount of power depending on the temperature difference across the energy harvester.
A new study from the University of Otago found that consuming seven to eight servings of fruits and vegetables per day can improve mood and overall wellbeing in young adults. The research suggests a strong relationship between positive emotions and higher fruit and vegetable consumption, with no significant impact on other foods.
The Mercyhurst University study assesses the current and future impacts of climate change on the overwintering energetics and microenvironmental conditions of the goldenrod gall fly. The research reveals a significant increase in energy use by larvae during winter, projected to decline with rising temperatures.
A team of astronomers has discovered an excess of X-ray radiation in the first few minutes of collapsing massive stars, potentially revealing the signature of the supernova shock wave. This breakthrough could enable the detection of new supernovae earlier than current methods, allowing for more precise monitoring and analysis.
Researchers at Virginia Tech have discovered a quasar with the most energetic outflow ever recorded, exceeding the Milky Way galaxy's total power output by 100 times. The massive material ejected has a rate equivalent to two trillion times the sun's power output.
A new study from Indiana University found that excessive soda consumption and screen time contribute to overweight and weight gain in students. In contrast, a regular meal pattern with at least three meals a day appears to be an effective strategy for achieving healthy weight.
Human pregnancy length is limited by a mother's metabolism, not birth canal size, according to new research published in the Proceedings of the National Academy of Sciences. The EGG hypothesis suggests that babies are born when their mother cannot put any more energy into gestation and fetal growth.
A recent study published in European Physical Journal B found that imposing minimum capital levels for banks may trigger a widespread banking system collapse. The researchers' model showed that the effect of a single insolvency can trigger an avalanche in the banking system, leading to larger crises.
A new study published in PLOS ONE found that hunter-gatherers, such as the Hadza tribe, expend a similar amount of energy daily as Western adults, contradicting the long-held assumption that their ancestors burned more calories. This similarity suggests that habitual metabolic rates are relatively constant among human populations.
Researchers found that southern dumpling squid's prolonged mating rituals result in temporary muscle fatigue, affecting their swimming ability for up to 30 minutes. This discovery provides new insight into the evolution of reproductive strategies and behaviours.
The University of Minnesota has developed an innovative isothermal compressed air energy storage (CAES) technology, licensed to SustainX. This solution can stabilize renewable energy sources like solar and wind power, making them more predictable and reliable.
Researchers at Imperial College London found that UK's discarded wrapping paper and Christmas cards can be turned into high-grade biofuel, powering vehicles with lower greenhouse gas emissions. The study suggests that using this technology could provide a sustainable alternative to fossil fuels.
The Radiation Assessment Detector (RAD) is measuring radiation levels on NASA's next rover mission to Mars. RAD characterizes the radiation environment astronauts would experience during a future human mission to Mars.
Researchers find that mammals with relatively large brains tend to have a somewhat bigger digestive tract. The storage of fat plays a key role in brain size evolution, with more fat an animal species can store leading to a smaller brain.
A study by Harvard researchers found that cooked meat delivers more energy than raw meat, contradicting current food labeling. This discovery supports the idea that cooking allowed early humans to extract more energy from their diet, contributing to evolutionary adaptations such as increased brain size and long-distance running ability.
Researchers confirmed that converting cow manure to electricity on farms is technically possible. However, the economic viability of such projects heavily depends on factors like government grants, subsidies, and premium paid for converted energy.
Researchers have discovered how living organisms, including humans, protect themselves from carbon monoxide poisoning by altering the structure of haemproteins. This mechanism allows for safe levels of internal carbon monoxide production without impairing cellular functions.
A new University of Melbourne study reveals that mother Eastern Grey Kangaroos double their food intake and significantly reduce resting time to meet the nutritional needs of their baby. This altered behavior increases their risk of parasite infection, which may be a significant additional cost for reproducing females.
Researchers use molecular imaging to gauge heart efficiency in subjects with a pathogenic mutation linked to HCM. They find carriers of the mutation already have less efficient hearts despite the absence of any symptoms. Alcohol septal ablation is shown to be an effective treatment for symptomatic patients who remain symptomatic despit...
Giant hummingbirds use more energy for their body size than smaller hummingbirds do, but still below the upper metabolic limit. Asexual fish hybrids have lower physiological performance, possibly due to increased reproductive advantage over sexual dace. Small sea birds hold heat rather than increasing metabolism
Harvard researchers develop rigorous mathematical theory to predict surface stability or instability under irradiation over time. The theory reveals that the cumulative effect of atoms knocked around, not blasted away, determines surface stability.
Researchers at Ames Laboratory developed a new alloy that converts heat into electrical energy with improved efficiency, paving the way for applications in vehicles, power generation, and recycling waste heat. The breakthrough uses rare-earth elements cerium or ytterbium to enhance thermoelectric properties.
Astronomers using data from NASA's Swift satellite have found a largely unseen population of black-hole-powered galaxies, accounting for at least one-fifth of all active galaxies. The discoveries were made by analyzing X-ray emissions and finding that these heavily shrouded black holes are extremely faint and difficult to detect.
A study published in BioScience finds strong correlations between energy consumption per person and gross domestic product per person across countries and over time. Researchers conclude that increasing energy supply is necessary to meet projected world population growth without compromising living standards.
The discovery of gamma-ray flares in the Crab Nebula, powered by a rapidly spinning neutron star, challenges current theories on cosmic particle acceleration. The flares were caused by super-charged electrons of up to 10 peta-electron volts, 1,000 times more energetic than any man-made accelerator.
Researchers discovered that blue whales can consume up to 2,000,000 kJ in a single mouthful of krill, providing 240 times more energy than used during a dive. This efficiency is due to the massive size of their mouths, which allow them to engulf large volumes of food.
A decade-long decline in the nation's energy supply quality may be the root cause of the current economic recession. The Energy Intensity Ratio (EIR) measures how much profit consumers get from their energy, and its decline is correlated with economic downturns.
Scientists have found a miniaturized galaxy with a single massive black hole, which produces radio jets that are much more efficient than previously thought. The discovery was made using CSIRO's Compact Array radio telescope and reveals that black holes can be both more powerful and more efficient.
Researchers found that taller people use less energy per stride when walking, making short people less economical walkers due to taking more steps. A new equation can now be used to calculate the energetic cost of walking based on these factors.
The Solar Probe Plus mission will measure energetic particles in the Sun's corona, providing critical data on acceleration mechanisms and space weather. SwRI-led instruments will help determine the structure and dynamics of the Sun's magnetic field and forecast hazardous space weather.
Research suggests that ostriches' wing-use and hindlimb function may help reconstruct locomotor techniques in bipedal dinosaurs. The study found that ostriches efficiently channel aerodynamic forces during rapid breaking, turning, and zigzag manoeuvres.
Two studies by Indiana University researchers found little influence of compression garments on running mechanics and economy in highly trained distance runners. While some subjects experienced improvement in their oxygen consumption, it was largely attributed to a psychological component rather than the garment itself.
A series of studies found that spending time in nature significantly increases feelings of vitality and energy, even in indoor settings. The research, led by Richard Ryan, suggests that nature is fuel for the soul and can provide a natural connection to living things, promoting physical and mental health.
This study uses accelerometry to measure the energy expenditure of cane toads, revealing a higher metabolic rate than previously thought. The research provides valuable data for predictive models to optimize control efficiency in invasive species management.
The entry of oil companies into renewable energy could hinder a sustainable economy based on carbon resources. A democratic and equitable transition is necessary to avoid a centralized structure that contradicts the nature of renewable energy sources.
The University of Chicago has established a new center for chemical innovation to pursue research on non-equilibrium chemistry, materials growth, and reactions in liquids. The center aims to develop new ways to convert methane into synthesis gas, producing liquid fuels and hydrogen.
Zhi-Xun Shen, director of SIMES, received the E.O. Lawrence Award for his groundbreaking discoveries and pioneering use of high-resolution angle-resolved photoemission to advance understanding of strongly correlated electron systems.
A University of Utah scientist argues that energy conservation doesn't save energy, but instead spurs economic growth and accelerated energy consumption. The study finds a constant link between global energy use and accumulated economic productivity, tied to a physical constant of 9.7 milliwatts per inflation-adjusted dollar.
Researchers found that observers can accurately judge some major personality traits from full-body photographs, especially with naturally expressive behavior. Altering one's appearance can influence how others perceive their personality, according to the study's findings.
A new generation of high-energy lasers has been developed to study fast ignition and high energy density physics. Using the OMEGA EP laser, researchers have demonstrated strong laser-matter coupling with intense 2.1kJ, 15ps laser pulses, enabling significant laser powers to be produced.
The Interstellar Boundary Explorer (IBEX) satellite has revealed an unexpected landmark at the outer edge of the solar wind bubble, forming a giant ribbon of energetic neutral atoms. The structure is associated with enhanced production of energetic neutral atoms due to interstellar magnetic forces.
Researchers from Johns Hopkins University present a new view of the region of the sun's influence, suggesting that the heliosphere may not have a comet-like shape. The Cassini spacecraft's images reveal that particle pressure and magnetic field energy density control the shape of the heliosphere.
The IBEX spacecraft has created a new comprehensive sky map of our solar system, showcasing its location within the Milky Way galaxy. The map highlights the region that separates our heliosphere from interstellar space, with bright emissions not previously detected by Voyager spacecraft.
Research suggests that triathletes who undertake high levels of cycling training have worse sperm morphology and quality. The study found a statistically adverse correlation between sperm morphology and the volume of cycling training undertaken per week.
Researchers found that Republicans generally value financial success over helping others, while Democrats tend to prioritize intrinsic values. Notable exceptions included non-religious Republicans and religious Democrats who did not differ from each other.
A recent University of Missouri study compares the values of Republicans and Democrats, finding that while there are some differences, both parties favor intrinsic values over extrinsic ones. Republican conservatives tend to prioritize financial success, while Democrats place greater emphasis on helping others in need.
Researchers are investigating SEP transport in 3D heliospheric magnetic fields to understand why some events occur without magnetic connection to the Sun. The goal is to assess cross-field diffusion's role in charged particle transport.
Researchers found that smaller primates have an evolutionary edge due to their ability to climb with minimal energy expenditure. This discovery challenges the longstanding assumption that climbing is energetically expensive for all primates.
Researchers found that pointed wingtips and reduced weight per wing area reduce flight costs for migratory birds. Climate change may exacerbate this effect, altering bird migration patterns and energy budgets.
The Pierre Auger Collaboration has found an anisotropy in cosmic ray arrival directions correlated with galaxies containing active galactic nuclei. This discovery suggests that AGN are the source of the most energetic particles reaching Earth.
New research reveals that certain areas of the moon are protected by the magnetosphere, reducing radiation exposure for astronauts. The study also highlights the need to consider energetic oxygen particles generated during solar storms.
Researchers found energetic electrons most abundantly at sites of compressed density within magnetic islands, contradicting previous theories. This discovery provides an important step towards solving the mystery of electron acceleration during magnetic reconnection.
Researchers from the University of Granada and the Pierre Auger Collaboration have found a link between active galactic nuclei and high-energy cosmic rays. The study suggests that these galaxy centers are responsible for producing the most energetic particles in the Universe.