搜索结果: 1-15 共查到“bursts”相关记录59条 . 查询时间(0.062 秒)
What seemed a cosmic trickle almost a decade ago now appears as a rapid-fire barrage from across the universe.
Fast Radio Bursts ‘Twists And Shouts’ Help Scientists Determine Source Of Cosmic Blasts
Fast Radio Bursts Twists Shouts Scientists Cosmic Blasts
2018/1/31
An international group of astronomers has found that the Cornell University-discovered fast radio burst FRB 121102 – a brief, gigantic pulse of radio waves from 3 billion light years away – passes thr...
‘Bursts’ Of Beta Waves,Not Sustained Rhythms,Filter Sensory Processing In Brain（图）
Bursts Beta Waves Not Sustained Rhythms Filter Sensory Processing Brain
2017/11/24
To better understand the brain and to develop potential therapies, neuroscientists have been investigating how “beta” frequency brainwaves help the brain filter distractions to process sensations. A n...
Precise Location,Distance Provide Breakthrough in Study of Fast Radio Bursts
Precise Location Distance Breakthrough Fast Radio Bursts
2017/1/9
For the first time, astronomers have pinpointed the location in the sky of a Fast Radio Burst (FRB), allowing them to determine the distance and home galaxy of one of these mysterious pulses of radio ...
Characteristics of flux-time profiles, temporal evolution, and spatial distribution of radiation-belt electron precipitation bursts in the upper ionosphere before great and giant earthquakes
Earthquake precursors particle precipitation wave particle interactions
2015/8/24
The analysis of energetic electron observations made by the DEMETER satellite reveals that radiation belt electron precipitation (RBEP) bursts are observed in general several (~1-6 days) before a larg...
Peering deep into time with one of the world’s newest, most sophisticated telescopes, astronomers have found a galaxy – AzTEC-3 – that gives birth annually to 500 times the number of suns as the Milky...
Rhythmic bursts of electrical activity from cells in ear teach brain how to hea
Rhythmic bursts electrical activity from cells ear teach brain how to hea
2014/6/19
A precise rhythm of electrical impulses transmitted from cells in the inner ear coaches the brain how to hear, according to a new study led by researchers at the University of Pittsburgh School of Med...
A University of Queensland study has found high-intensity short-duration exercise provides better results than the recommended 30 minutes of daily exercise.
Short bursts of high-intensity exercise could be a one-stop solution for many health problems.
Can Sequentially Linked Gamma-Ray Bursts Nullify Randomness?
Gamma-Ray Bursts Nullify Randomness General Physics
2012/5/17
In order to nullify the property of randomness perceived in the dispersion of gamma-ray bursts (GRB's) we introduce two new procedures. 1. Create a segmented group of sequentially linked GRB's and qua...
Optimum Drift Velocity for Single Molecule Fluorescence Bursts in Micro/Nano-Fluidic Channels
Optimum Drift Velocity Single Molecule Fluorescence Micro/Nano-Fluidic Channels Instrumentation and Detectors
2012/4/24
Photonic burst histograms can be used to identify single protein molecules in micro/nano-fluidic channels provided the width of the histogram is narrow. Photonic shot noise and residence time fluctuat...
Thermonuclear X-ray bursts from the 401 Hertz accreting pulsar IGR J17498-2921: indication of burning in confined regions
Thermonuclear X-ray bursts pulsar IGR J17498-2921 indication confined regions
2012/2/23
We use the 2011 Rossi X-ray Timing Explorer (RXTE) proportional counter array (PCA) data of the 401 Hz accreting pulsar and burster IGR J17498-2921 to perform timing analysis and time-resolved spectro...
Spectral-Temporal Simulations of Internal Dissipation Models of Gamma-Ray Bursts
Spectral-Temporal Simulations Internal Dissipation Models Gamma-Ray Bursts
2011/10/19
We present calculations of the time evolution of the prompt spectra of gamma-ray burst models involving generic internal dissipation regions, including internal shocks, either by itself or in the pres...
The Galactic dust-to-metals ratio and metallicity using gamma-ray bursts
Gamma-ray burst: general – ISM: abundances – dust, extinction – Galaxy: abundances – X-rays: ISM
2011/10/18
The metallicity and dust-to-metals ratio of the Galaxy are fundamental parameters in understanding the ISM, but there is still uncertainty surrounding these parameters. In this paper, the dust-to-meta...
The Role of Stochastic Re-acceleration in the Prompt Emission of Gamma-Ray Bursts: Application to Hadronic Injection
Stochastic Re-acceleration Prompt Emission Gamma-Ray Bursts: Application Hadronic Injection
2011/10/20
We study effects of particle re-acceleration in the post-shock region via magnetohydrodynamic/plasma turbulence, in the context of a mixed hadronic-leptonic model for the prompt emission of gamma-ray ...