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The Big Bang at 75（图）
Physics Philosophy 天体物理学
2023/6/29
There was a time before time when the universe was tiny, dense, and hot. In this world, time didn’t even exist. Space didn’t exist. That’s what current theories about the Big Bang posit, says Vijay Ba...
A 'bang' in LIGO and Virgo detectors signals most massive gravitational wave source yet（图）
bang LIGO Virgo detectors signals massive gravitational source yet
2020/9/4
For all its vast emptiness, the universe is humming with activity in the form of gravitational waves. Produced by extreme astrophysical phenomena, these reverberations ripple forth and shake the fabri...
评估STOP-Bang（SBQ）问卷筛查阻塞性睡眠呼吸暂停（OSA）患者的准确性。连续纳入2011年9月至2012年5月在四川大学华西医院睡眠医学中心就诊的可疑OSA患者350例，其中男302例，女48例；年龄（42.9±11.0）岁（范围：19~68岁）。患者均行整夜多导睡眠监测（PSG），并填写SBQ问卷。依据呼吸暂停低通气指数（AHI）将患者分为单纯鼾症组（<5次/h）、轻度OSA组（5~1...
Battlefield Geometry in our Digital Age: From Flash to Bang in 22 Milliseconds
Battlefield Geometry Digital Age The New Battlefield
2019/10/22
This year has been tough for cybersecurity programs. Every month in the first six months of 2017, the world experienced a major cyber event. Open-source attacks included attacks on critical infrastruc...
Small blue galaxy could shed new light on Big Bang,IU astronomers say
Small blue galaxy Big Bang,IU astronomers
2016/5/19
A faint blue galaxy about 30 million light-years from Earth and located in the constellation Leo Minor could shed new light on conditions at the birth of the universe.Astronomers at Indiana University...
In the Beginning Was the Verb: The Emergence and Evolution of Language Problem in the Light of the Big Bang Epistemological Paradigm.
emergence evolution natural languagues Big Bang epistemological paradigm
2015/7/28
The enigma of the Emergence of Natural Languages, coupled or not with the closely related problem of their Evolution is perceived today as one of the most important scientific problems. The purpose of...
International Team Maps "Big Bang" of Bird Evolution（图）
International Team Maps Big Bang Bird Evolution
2014/12/30
The genomes of modern birds tell a story of how they emerged and evolved after the mass extinction that wiped out dinosaurs and almost everything else 66 million years ago. That story is now coming to...
'Big bang' of bird evolution mapped by international research team（图）
Big bang bird evolution mapped international research team
2014/12/30
The genomes of modern birds tell a story: Today's winged rulers of the skies emerged and evolved after the mass extinction that wiped out dinosaurs and almost everything else 66 million years ago.That...
Bang-le yi ge da mang (offered a big helping hand): a corpus study of the splittable compounds in spoken and written Chinese
Chinese morphology Corpus methodology Grammatical word Phonological word Splittable compounds (SCs)
2014/12/3
Splittable compounds (SCs) are verbal constructions in Chinese that consist of two parts which are separable by some interposing elements, though they behave like and are usually considered as single ...
BANG!
Art painting installation accumulation, play pink
2014/10/22
BANG! is a thesis paper presented in conjunction with a visual art show that is made up of paintings, sculptures, and site specific installations. Primary ideas explored with the body of work are thos...
Airfoil Roll Control by Bang-Bang Optimal Control Method with Plasma Actuators
Airfoil Roll Control Bang-Bang Optimal Control Method Plasma Actuators Plasma Physics
2012/4/20
The bang-bang optimal control method was proposed for glow discharge plasma actuators, taking account of practical issues, such as limited actuation states with instantaneously varied aerodynamic cont...
Pre-big bang collapsing universe from modern Kaluza-Klein theory of gravity
Pre-big bang collapsing universe modern Kaluza-Klein theory gravity
2011/10/18
We study the collapse of the universe described by a scalar field spherically symmetric collapse of a system described by a massless scalar field from a 5D Riemann-flat canonical metric, on which we m...
The initial spectrum of fluctuations in the little bang
little bang fluctuations initial spectrum
2011/7/20
High parton densities in ultra-relativistic nuclear collisions suggest a description of these collisions wherein the high energy nuclear wavefunctions and the initial stages of the nuclear collision a...
Standard Big-Bang Nucleosynthesis up to CNO with an improved extended nuclear network
Big-Bang Nucleosynthesis improved extended nuclear network
2011/9/28
Primordial or Big Bang nucleosynthesis (BBN) is one of the three strong evidences for the Big- Bang model together with the expansion of the Universe and the Cosmic Microwave Background radiation. In ...
Conditions quadratiques pour des extrémales bang-singulières
Optimal control second order conditions control constraints singular arc bang-singular solutions
2011/8/22
Abstract: This paper deals with optimal control problems for systems affine in the control variable. We have nonnegativity constraints on the control, and finitely many equality and inequality constra...