共查询到11条相似文献,搜索用时 62 毫秒
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姚作新 《沙漠与绿洲气象(新疆气象)》2000,23(6):40-41
目前,局域网络已遍布各业务、办公系统,甚至在拥有多台计算机的家庭也出现了。各种局域网络有大有小,无论网络规模是大是小,联入INTERNET几乎已成为各种局域网络之必需。但是,由于受到财力等诸多因素的限制,目前,绝大多数的INTERNET用户的首选线路,仍然是拨号线路。因此,在诸多局域网络中就出现这样的情形:网络中有使用拨号线路上网的计算机,但网上其它计算机却不能通过它上INTERNET网,即整个局域网没有INTERNET路由,上网只能使用固定的计算机。如何利用现有局域网中的INTERNET拨号线路,给全网提供一个INTE… 相似文献
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介绍农经网计算机与自动站计算机在Win98操作系统下组建局域网实现宽带共亨Internet的方法。 相似文献
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针对大气环境影响评价中估算模式DOS版本,开发了一种Windows简捷处理系统,建立了方便的中文输入界面,并对计算结果进行分析处理。本文对该系统功能进行了详细介绍,并举实例进行应用。该系统的开发和完成,为大气环境影响评价工作提供了方便。 相似文献
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M. V. Shmakova 《Russian Meteorology and Hydrology》2013,38(8):555-560
Derived is an analytical formula of sediment discharge based on the balance of forces of the river flow. The formula is represented by two major groups of forces, gravity and resistance. The dependences on the size category of the bottom soil are obtained for the parameters of the formula (the adhesive force of soil shear and coefficient of internal friction). Computations for the rivers of different characteristics demonstrated good results. Provided are the recommendations for computing the sediment discharge using the formula for the explored and unexplored rivers. 相似文献
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A cryogenic system for the airborne and ground based sampling of ambient radicals by matrix isolation is described. The trapped radicals, e.g., NO2 and RO2, are analyzed by ESR. The technique has been improved, mainly by addition of water vapor to the sampled air, to yield a collection efficiency of (90±10)% and a lower detection limit of about 20 ppt, but it still does not distinguish between the different RO2. Careful calibration reduced the measurement error (1 ) to ±10% for NO2 and ±15% for HO2. Two diurnal variations of RO2 and NO2 at ground level and vertical profiles in the lower troposphere are presented. 相似文献
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Jürgen Wucknitz 《Boundary-Layer Meteorology》1979,17(1):119-131
A comparison of observations by different authors reveals that systematic differences exist between momentum fluxes measured directly, and momentum fluxes determined indirectly by the dissipation method. This discrepancy is attributed to systematic errors due to the indirect determination of energy dissipation from the presumed inertial subrange spectrum of the horizontal wind component. The discrepancy increases with increasing degree of anisotropy, indicated by the ratio (vertical wind spectrum): (horizontal wind spectrum) deviating from % MathType!MTEF!2!1!+-% feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn% hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr% 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4baFfea0dXde9vqpa0lb9% cq0dXdb9IqFHe9FjuP0-iq0dXdbba9pe0lb9hs0dXda91qaq-xfr-x% fj-hmeGabaqaciGacaGaaeqabaWaaeaaeaaakeaadaWcaaqaaiaais% daaeaacaaIZaaaaaaa!33E6!\[\frac{4}{3}\]The results support a value of 0.48 for Kolmogoroff's constant. 相似文献
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1997/98年强E1 Ni(n)o背景下西太平洋暖池区云辐射强迫的变化,表现出诸多不同于以往的特征,已经成为检验气候模式性能的一个重要标准.本文基于卫星资料,分析了大气环流模式GAMIL1.0和2.0版对上述现象的模拟能力.结果表明,GAMIL1.0模式对热带地区云辐射特征分布,尤其对西太平洋暖池区的长(短)波云辐射... 相似文献