搜索结果: 16-23 共查到“理学 today”相关记录23条 . 查询时间(0.093 秒)
This is a brief review of the standard model of cosmology. We first introduce the FRW models and their flat solutions for energy fluids playing an important role in the dynamics at different epochs. W...
Hadronic jet models today
galaxies active BL Lacertae objects general galaxies jets (galaxies:)quasars
2010/11/10
The matter content of relativistic jets in AGNs is dominated by a mixture of protons,
electrons, and positrons. During dissipative events these particles tap a significant portion of the internal and...
Quantum theory, gravity, and the standard model of particle physics : using the hints of today to build the final theory of tomorrow
Quantum theory gravity particle physics
2010/3/19
When a mountaineer is ascending one of the great peaks of the Himalayas she knows that an entirely new vista awaits her at the top, whose ramifications will be known only after she gets there. Her imm...
Lithuanian mineral resources and their usage:today,future,and problems
mineral resources today future problems
2009/10/21
Mineral resources have been, are now, and will be one of the main factors of the economic and social progress of our societies. The 20th century was the century of practically global industrialization...
CO2 Higher Today Than Last 2.1 Million Years--Study Offers Detailed Look at Past Greenhouse Gas Levels（图）
CO2 Higher Today Than Last 2.1 Million Years Past Greenhouse Gas Levels
2009/12/10
Researchers have reconstructed atmospheric carbon dioxide levels over the past 2.1 million years in the sharpest detail yet, shedding new light on its role in the earth’s cycles of cooling and warming...
On the kinematics of h ii regions：yesterday, today, and tomorrow
kinematics tomorrow h ii regions today
2009/6/11
On the kinematics of h ii regions：yesterday, today, and tomorrow。
Nitrate aerosols today and in 2030: a global simulation including aerosols and tropospheric ozone
Nitrate aerosols aerosols tropospheric ozone
2008/12/22
Nitrate aerosols are expected to become more important in the future atmosphere due to the expected increase in nitrate precursor emissions and the decline of ammonium-sulphate aerosols in wide region...
Montreal, Canada, February 19, 2007 - Dick Evans, president and chief executive officer, Alcan Inc., called on Canada to act on climate change in his luncheon remarks to members and distinguished gues...