搜索结果: 1-12 共查到“理学 phantom”相关记录12条 . 查询时间(0.18 秒)
‘Phantom’ superbugs - a silent killer（图）
superbugs enetic material
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2014/7/4
University of Queensland researchers have discovered antibiotic-resistant bacteria in the Middle East which is cloaking itself in genetic material to avoid detection and placing the population at incr...
The Effects of Tachyonic and Phantom Fields in the Intermediate and Logamediate Scenarios of the Anisotropic Universe
Tachyonic and Phantom Fields Universe
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2011/9/2
In this work, we have analyzed two scenarios namely, “intermediate” and “logamadiate” scenarios for closed, open and flat anisotropic universe in presence of phantom field, normal tachyonic field and ...
Thermodynamics of phantom energy in the presence of a Reissner-Nordstrom black hole
Phantom energy Reissner-Nordstr¨om black hole Generalized second law of thermodynamics
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2011/8/31
In this paper, we study the validity of the generalized second law (GSL) in phantom dominated universe in the presence of a Reissner-Nordstr¨om (RN) black hole. Our study is independent of the origin ...
Phantom Wormholes in (2+1)-dimensions
Lower dimensional gravity Wormhole Phantom energy
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2010/3/17
In this paper, we have constructed a (2+1)-dimensional wormhole using inhomogeneous and anisotropic distribution of phantom energy. We have determined the exact form of the equation of state of phanto...
Tachyonic field interacting with Scalar (Phantom) Field
acceleration tachyonic field scalar field phantom field
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2010/7/5
In this letter, we have considered the universe is filled with the mixture of tachyonic field and scalar or phantom field. If the tachyonic field interacts with scalar or phantom field, the interactio...
多重指数势的phantom字宙学
相空间 phantom big rip吸引子
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2008/12/12
利用相空间方法研究具有Ⅳ个标量场的多重指数势的phantom动力学模型．特别地，作者详细研究了N=2的phantom宇宙学，指出在给定势的条件下允许存在bigrip吸引子．
具有双重指数势的phantom宇宙学
Phantom de Sitter吸引子 异宿轨线 M理论
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2008/12/11
利用相空间分析方法，系统研究了具有双重指数势的phantom动力学．主要目的在于研究由M理论引起的势，但同时还分析了指数势中系数比为正的所有可能情况．根据宇宙的晚期行为，给出了解的完整分类．与quintessence情形相反，该体系存在异宿轨线解.
The cryptic origins of environment-indicating phantom midges (Chaoborus)
The cryptic origins environment-indicating phantom midges
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2014/4/21
Fragile freshwater ecosystems have acted as important sentinels for global environmental change. A detailed understanding of the implications of global change in aquatic ecosystems relies on indicator...
一个可解Phantom模型中束缚系统的演化
Phantom Big Rip 束缚系统
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2008/1/25
研究在Phantom场论模型中的束缚系统解体问题．利用膨胀时空中束缚系统的有效度规和一个可解的场论模型,导出了解体时刻的表达式,并讨论了不同束缚系统中模型参数的影响．利用太阳系、银河系和后发星系团的相关物理量,计算了在某个特定参数值下的解体时刻.
Competition between protons and cadmium ions in the planktonic food chain leading to the phantom midge Chaoborus
protons cadmium ions
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2014/5/4
Cadmium concentrations in the phantom midge Chaoborus can be related to those of the free Cd ion, Cd2+, in lakewater provided that the competitive influence of H+ on Cd uptake sites is considered. Bec...
Evaluation of the Fluence to Dose Conversion Coefficients for High Energy Neutrons Using a Voxel Phantom Coupled with the GEANT4 Code
Dose Conversion Coefficients High Energy Neutrons a Voxel Phantom the GEANT4 Code
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2010/10/15
Crews working on present-day jet aircraft are a large occupationally exposed group with a relatively high average effective dose from galactic cosmic radiation. Crews of future high-speed commercial f...
Langmuir circulations disturb the low-oxygen refuge of phantom midge larvae
Langmuir circulations disturb the low-oxygen refuge phantom midge larvae
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2014/6/9
The previously unknown effects of wind-induced Langmuir circulations on the distribution of phantom midge larvae (Chaoborus flavicans) were studied by echosounding. The study was carri...