使用WINDOWS98实现INTERNET拨号线路在局域网中共享

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…     

县级台站业务平台实现宽带共享Internet详细组网方法

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。     

大气环境影响评价估算模式（SCREEN3）视窗化处理系统

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。     

用MOS法建立预报方程的试验流程

利用MOS预报方法建立预报方程试验系统的结构及功能 ,并提供了高效计算和反复试验的重要技术 ,充分考虑了不同地区站的地理气候特点 ,既适合同时建立多站、多要素方程 ,也能够进行单站、单要素的反复试验。     

Analytic formula of the sediment discharge. The method of computation

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.     

An improved method of measuring tropospheric NO2 and RO2 by matrix isolation and electron spin resonance

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.     

用线性回归方法建立贵阳市空气质量预报模式

利用贵阳市大气中 3种主要污染物浓度的实时监测资料和气象观测资料 ,建立污染物浓度的自回归模型及其与相关气象因子的多元回归模型 ,并将两种模型进行拟合 ,确定空气质量预报的统计模式     

The influence of anisotropy on stress estimation by the indirect dissipation method

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.     

新旧两个版本GAMIL模式对1997/98强E1 Ni(n)o年西太平洋暖池区独特云辐射强迫特征的数值模拟

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...