搜索结果: 31-45 共查到“理学 GEO”相关记录52条 . 查询时间(0.61 秒)
Decoupling of ground level pressures observed in Italian volcanoes: are they driven by space weather geo-effectiveness?
Atmospheric pressure Space weather Sun storm Volcanoes
2015/8/17
Investigations on correlation drops between near-ground atmospheric pressures measured at sea level and at higher altitudes on Italian volcanoes have been carried out. We looked for perturbations of t...
第二届地质工程技术信息会议国际会议（2nd International Conferenceon Information Technology in Geo-Engineering）
第二届 地质工程技术信息会议国际会议 2nd International Conferenceon Information Technology in Geo-Engineering
2013/11/22
The 2nd International Conference on Information Technology in Geo-Engineering will be held in Durham, UK on 21-22 July 2014. The conference follows the successful first conference held in Shanghai in ...
GEO空间碎片的光学观测与精密定位
空间碎片 同步轨道 光学光侧 图像处理
2012/9/12
GEO轨道由于其特殊的动力学特性，有着巨大的应用价值;然而，GEO区域没有类似大气阻尼的碎片清除机制，导致空间碎片的威胁与日俱增。由于地基雷达探测距离的限制，地基光学观测是GEO空间碎片探测的主要手段。介绍了空间碎片光学观测中设备的选取，观测方案的制定，以及相关的图像处理算法;分析了空间碎片精密定位的技术与方法，并对今后的发展进行了展望。为了更好地了解GEO空间碎片的态势，保障在轨运行航天器的安全...
Geo-electrical Investigation of Mullusi Aquifer, Rutba, Iraq
Geo-Electrical Layer Hydraulic Conductivity Mullusi Aquifer Iraq
2013/3/8
The geophysical study was performed east of Rutba town due to vertical electrical sounding in a net of forty points between Dhalaa and Dhabaa valleys. Geophysical electrical model applicated using Win...
Geo-environmental behavior of marly soils, application for landfills and comparison to bentonite behaviour
soils landfills Geo-environmental behavior
2011/11/11
The current study aims at experimental investigation of geo-environmental behaviour of marly soils. The retention behaviour of soil samples is evaluated using batch equilibrium tests with different co...
Reference crop evapotranspiration derived from geo-stationary satellite imagery: a case study for the Fogera flood plain, NW-Ethiopia and the Jordan Valley, Jordan
Reference crop evapotranspiration geo-stationary satellite imagery
2010/12/22
First results are shown of a project aiming to estimate daily values of reference crop evapotranspiration ET0 from geo-stationary satellite imagery. In particular, for Woreta, a site in the Ethiopian ...
Macroscopic Geo-Magnetic Radiation Model; Polarization effects and finite volume calculations
Macroscopic Geo-Magnetic Radiation Model Polarization effects finite volume calculations
2011/1/11
An ultra-high-energy cosmic ray (UHECR) colliding with the Earth's atmosphere gives rise to an Extensive Air Shower (EAS). Due to different charge separation mechanisms within the thin shower front co...
Geo-effectiveness of Solar Wind Extremes
Geomagnetic storms geomagnetic activity solar wind streams interplanetary magnetic field space weather
2010/9/16
Examples of extreme events of solar wind and their effect on geomagnetic conditions are discussed here. It is found that there are two regimes of high speed solar wind streams with a threshold ofͬ...
Mesopause temperature perturbations caused by infrasonic waves as a potential indicator for the detection of tsunamis and other geo-hazards
the detection tsunamis other geo-hazards
2010/10/21
Many geo-hazards such as earthquakes, tsunamis, volcanic eruptions, severe weather, etc., produce acoustic waves with sub-audible frequency, so called infrasound. This sound propagates from the surfac...
The contribution of historical aerial and satellite photos to archaeological and geo-archaeological research: case studies in Italy and Turkey
The contribution of historical aerial satellite photos to archaeological geo-archaeological research case studies
2010/9/13
The paper evidences the importance of old aerial and satellite photos of ancient topography studies, with examples concerning archaeological and geo-archaeological research conducted in Italy and Turk...
综合利用离散补充变量法、矩阵几何解及拟生灭链的方法研究了带有负顾客及伯 努利反馈的Geo/Geo/1多重工作休假排队系统. 首先运用离散补充变量方法得 到了此复杂系统的转移概率矩阵. 其次, 再利用矩阵几何解及拟生灭链的技术通 过解方程组获得了队长的稳态分布、平均队长及稳态队长的随机分解结果. 最后, 通过引入数值例子, 作出了系统的二维图形, 进而可以更直观地分析一些参数 对系统性能的影响.
Geo-neutrinos, electron anti-neutrinos produced in beta decays of naturally occurring radioactive isotopes in the Earth, are a unique direct probe of our planet's interior. We report the first observa...
Challenges to geo-scientists in risk assessment for submarine slides
Challenges geo-scientists risk assessment submarine slides
2009/12/3
The state-of-the-art in understanding submarine slides has advanced significantly in the past decade. The advances have been mostly driven by the need of the offshore petroleum industry to understand ...
Geo-effectiveness of Solar Wind Extremes
Geomagnetic storms geomagnetic activity solar wind streams interplanetary magnetic field space weather
2009/5/7
Examples of extreme events of solar wind and their effect on geomagnetic conditions are discussed here. It is found that there are two regimes of high speed solar wind streams with a threshold of ...
Geo-effectiveness of CMEs
Coronal mass ejection interplanetary medium and normamalized scintillation index
2009/5/6
Coronal Mass Ejections (CMEs) are important phenomena in
coronal dynamics causing interplanetary signatures (ICMEs). They eject
large amounts of mass and magnetic fields into the heliosphere, causin...