The Experimental Satellite on Electromagnetism Monitoring(ESEM) was proposed in 2003 and proved in 2013 after 10-years' scientific demonstration. The ESEM mission was proposed to be the first satellite of space-ba...The Experimental Satellite on Electromagnetism Monitoring(ESEM) was proposed in 2003 and proved in 2013 after 10-years' scientific demonstration. The ESEM mission was proposed to be the first satellite of space-based geophysical fields observation system in China with a lot of application prospects in earthquake science, geophysics, space sciences and so on. And coincide with the mission objectives, the satellite decides to use the Circular Sun Synchronous Orbit with an altitude of 507 km and descending node time at 14:00 LT. The payload assemble includes 8 instruments,Search-Coil Magnetometer, Electric Field Detector, High precision Magnetometer, GNSS occupation Receiver, Plasma Analyzer, Langmuir Probe, Energetic Particle Detector, and Three-frequency Transmitter. According to the planned schedule, the satellite is due to be launched in 2016–2017 and will be onboard operated for 5 years.展开更多
Rabbit right eyes were injected with 3 or 6 mg ketorolac tromethamine into the suprachoroidal space. Electroretinography results demonstrated no abnormal changes in rod cell response, maximum rod cell or cone cell mix...Rabbit right eyes were injected with 3 or 6 mg ketorolac tromethamine into the suprachoroidal space. Electroretinography results demonstrated no abnormal changes in rod cell response, maximum rod cell or cone cell mixing reaction, oscillation potential, cone cell response, waveform, amplitude, and potential of 30 Hz scintillation response in right eyes before injection, and at 1,2, and 4 weeks after injection. There was no difference between left （control） and right eyes. Under light microscopy, the histomorphology of cells in each retinal layer was normal at 4 weeks following 6 mg ketorolac tromethamine administration. These results indicate that a single suprachoroidal injection of 3 or 6 mg ketorolac tromethamine into rabbits was safe. Suprachoroidal space injection appears to be safe.展开更多
反k最近区域查询问题是近邻查询领域的一个新问题,为了弥补现有的研究成果无法有效地处理障碍空间下的线段反k最近区域查询问题,提出了在障碍环境下基于Voronoi图的线段反k最近区域查询方法。在实际中主要应用于评估查询对象的影响力。...反k最近区域查询问题是近邻查询领域的一个新问题,为了弥补现有的研究成果无法有效地处理障碍空间下的线段反k最近区域查询问题,提出了在障碍环境下基于Voronoi图的线段反k最近区域查询方法。在实际中主要应用于评估查询对象的影响力。该方法首先对数据区域集进行约减,缩减了查询的搜索范围。然后根据剪枝过程所提定理对候选集进行过滤,获得更精确的候选集。最后基于Voronoi图的性质提出相关定理,精炼OLRk NR(obstacle line reverse k nearest region)查询的结果集。所提方法根据Voronoi图特性在剪枝、精炼过程中提升了查询速度和查询准确率。理论研究和实验表明,所提方法可以有效处理障碍环境下基于线段的反k最近区域查询问题。展开更多
文摘The Experimental Satellite on Electromagnetism Monitoring(ESEM) was proposed in 2003 and proved in 2013 after 10-years' scientific demonstration. The ESEM mission was proposed to be the first satellite of space-based geophysical fields observation system in China with a lot of application prospects in earthquake science, geophysics, space sciences and so on. And coincide with the mission objectives, the satellite decides to use the Circular Sun Synchronous Orbit with an altitude of 507 km and descending node time at 14:00 LT. The payload assemble includes 8 instruments,Search-Coil Magnetometer, Electric Field Detector, High precision Magnetometer, GNSS occupation Receiver, Plasma Analyzer, Langmuir Probe, Energetic Particle Detector, and Three-frequency Transmitter. According to the planned schedule, the satellite is due to be launched in 2016–2017 and will be onboard operated for 5 years.
文摘Rabbit right eyes were injected with 3 or 6 mg ketorolac tromethamine into the suprachoroidal space. Electroretinography results demonstrated no abnormal changes in rod cell response, maximum rod cell or cone cell mixing reaction, oscillation potential, cone cell response, waveform, amplitude, and potential of 30 Hz scintillation response in right eyes before injection, and at 1,2, and 4 weeks after injection. There was no difference between left （control） and right eyes. Under light microscopy, the histomorphology of cells in each retinal layer was normal at 4 weeks following 6 mg ketorolac tromethamine administration. These results indicate that a single suprachoroidal injection of 3 or 6 mg ketorolac tromethamine into rabbits was safe. Suprachoroidal space injection appears to be safe.
文摘反k最近区域查询问题是近邻查询领域的一个新问题,为了弥补现有的研究成果无法有效地处理障碍空间下的线段反k最近区域查询问题,提出了在障碍环境下基于Voronoi图的线段反k最近区域查询方法。在实际中主要应用于评估查询对象的影响力。该方法首先对数据区域集进行约减,缩减了查询的搜索范围。然后根据剪枝过程所提定理对候选集进行过滤,获得更精确的候选集。最后基于Voronoi图的性质提出相关定理,精炼OLRk NR(obstacle line reverse k nearest region)查询的结果集。所提方法根据Voronoi图特性在剪枝、精炼过程中提升了查询速度和查询准确率。理论研究和实验表明,所提方法可以有效处理障碍环境下基于线段的反k最近区域查询问题。
