排序方式: 共有48条查询结果,搜索用时 15 毫秒
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九自由度运动模拟器动态测试是交会对接中的一个关键技术,本文针对双相机高精度工业测量系统在模拟器动态测试应用中开展一定深度的研究,并通过交会对接视觉姿态检测软件进行了深入的实验和精度评定工作。实验证明,直线度误差为±0.37 mm,距离误差为±0.406 mm;点位精度优于1.200 mm,二者均具有测试速度快、测量精度高的优势,可以很好地满足交会对接动态测试技术中测量结果实时性的要求。 相似文献
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Photochemical production of dissolved inorganic carbon from suwannee river humic acid 总被引:1,自引:0,他引:1
The photochemical mineralization of dissolved organic carbon(DOC) to dissolved inorganic carbon(DIC) is a key process in carbon cycling.Using a Suntest CPS solar simulator,Suwannee River humic acid(SRHA) was photooxidated to examine the effects of O2 levels,the wavelength of incident light,and the concentration of Fe on the photoproduction of DIC.Increasing the O2 abundance enhanced photodegradation of SRHA.The rate of DIC photoproduction under air saturation in the first 24 h(4.40 μmol/(L h)) was increased... 相似文献
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地球信息科学技术的最新发展趋势 总被引:1,自引:0,他引:1
承继成 《地球信息科学学报》2008,10(2):280-281
近10年来,地球信息科学技术取得了很大的发展,尤其在战略层面上成绩格外突出,主要表现在两个方面:在技术方面,从原来的“e”战略向“u”战略转变;在应用方面,从原来的调查、监测向模拟实验转变,从原来的环境变化模拟(如地球模拟器)到一个国家、一个地区、一个城市的宏观经济模拟分析(如宏观经济模拟器)转变,不仅直接为全球环境变化服务,而且也可以直接为经济建设服务,这是当前的大趋势,现在分别简介如下:1从“e”战略向“u”战略转变的大趋势从技术发展战略层面来看,由目前的“e”战略向未来的“u”战略转变,即由“信息化”向“智能化”战略或“无处不在的网络”战略转变,并成为推动经济社会发展的主要动力,已成当前信息化发展的大趋势。 相似文献
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The simulation of an ocean general circulation model for the earth simulator (OFES) is transformed to an isopycnal coordinate to investigate the spatial structure and seasonal variability of the Mindanao Under- current (MUC). The results show that (1) potential density surfaces, δ0=26.5 and δ0=27.5, can be chosen to encompass the M UC layer. Southern Pacilic tropical water (SPTW), Antarctic Intermediate Water (AAIW) and high potential density water (HPDW) constitute the MUC. (2) Climatologically, the MOC exists in the form of dual-core. In some months, the dual-core structure changes to a single-core structure. (3) Choosing section at 8°N for calculating the transport of the MUC transport is reliable. Potential density constraint provides a good method for calculating the transport of the MOC. (4) The annual mean transport of the MUC is 8.34 × 106 m3/s and varies considerably with seasons: stronger in late spring and weaker in winter. 相似文献
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