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Different turbulent entrainment-mixing processes (e.g., homogeneous and inhomogeneous) occur in clouds; accurate represe......
Bangladesh, a developing country, gained success towards the fifth-millennium development goals target of reducing its m......
Numerous astrophysical observations have established a paradigm that the dominant component of matter in the Universe sh......
By inspection of central eclipses videorecords, data of Baily beads timings are retrievable. Knowing the lunar limb prof......
本文通过对荣华二采区10...
The 9–11 November 2013 Explosive Cyclone over the Japan Sea-Okhotsk Sea: Observations and WRF Modeli
During the period from 9 to 11 November 2013, an explosive cyclone (EC) occurred over the Japan Sea-Okhotsk Sea. This EC......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Solar corona study is an important aspect of space weather research.In recent years,great achieVements have been acquire......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Evaluating Methods for Dealing with Missing Outcomes in Discrete-Time Event History Analysis: A Simu
<strong>Background:</strong><span style="font-family:;" "=""><span style="font-family:Verdana;"> In discrete-time event ......
本文主要叙述了观测资料工程数据库的基本功能和实现方法,并给出一个实例,说明了该方法的应用,取得了良好的结果。......
对黑龙江省大海林林业局的白桦和红松经营试验和示范的相关问题进行了研究,得出本地区成功推广经验.......
Helmert(赫尔墨特)方差分量估计作为近代平差随机模型的验后估计,可以准确给出各类观测量之间的权比,提高平差结果的可靠性。文章......
应用台站观测资料对ERA-40,NCEP/NCAR以及NCEP/DOE再分析地表气压产品在中国不同区域、不同年代和不同季节的适用性进行了评估。分析......
分析了大西坑地区的自然条件、经济状况的基础上,对大西坑地区资源开发利用的现状作了评价,进而提出了开发利用的指导思想,开发目标及......
本文建立了反应堆功率调节系统的状态方程,运用现代控制理论中微分几何理论对非线性核动力学模型进行线性化处理,根据观察器理论,......
A method of estimating the Martian neutral atmospheric density at 130 km, and comparison of its resu
Profiles of the Martian dayside ionosphere can be used to derive the neutral atmospheric densities at 130 km,which can a......
The wavenumber spectral components WN4 at the mesosphere and low thermosphere(MLT)altitudes(70–10 km)and in the latitud......
In this paper,we use wind observations by a Doppler wind LiDAR near Delingha(37.4°N,97.4°E),Qinghai,Northweste......
In this study,an east-moving Tibetan Plateau vortex(TPV)is analyzed by using the ERA-5 reanalysis and multi-source satel......
我国利用外资原则的提出和发展经过了一个过程,考察这些原则的提出与发展,结合我国利用外资的实际,给我们留下了诸多思考.......
Investigating the Initial Errors that Cause Predictability Barriers for Indian Ocean Dipole Events U
By analyzing the outputs of the pre-industrial control runs of four models within phase 5 of the Coupled Model Intercomp......
作者对长江自然环境圈养条件下和人工饲养池豚的部分行为作了初步的记录和分析。江豚对人工饲养的适应与环境变化的大小以及群体结......
扩展的DEA-DA模型[1]是一种结合数据包络分析(DEA)和判别分析(DA)的非参数判别分析方法.一种锥比率DEA模型C2WH可以利用锥比率体现......
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伽玛暴(GRBs)是宇宙中最剧烈的爆发现象之一,它的起源和中心机制仍然是研究和争论的焦点。Fermi伽玛射线空间望远镜能观测到很宽的能......
从45年的欧洲中心forMedium范围天气预报( ECMWF )分析( ERA-40 )的夏天 降水产品,和精力(雌动物)的NCEP部门大气的模型 Intercompa......
在中国的 cryosphere 上的系统的研究在 1950 年代末开始了。重要成就被冰河库存,冻结的地面观察,冰核心的古气候分析,过程研究并且当......
Evaluation of Simulated CO2 Concentrations from the CarbonTracker-Asia Model Using In-situ Observati
The CarbonTracker(CT) model has been used in previous studies for understanding and predicting the sources, sinks, and d......
An Adjoint-Free CNOP–4DVar Hybrid Method for Identifying Sensitive Areas in Targeted Observations: M
This paper proposes a hybrid method, called CNOP–4 DVar, for the identification of sensitive areas in targeted observat......
利用平差因子讨论了在Gauss—Markov模型中,去掉一个观测值对最小二乘估计的影响,并讨论了当平差因子Jü接近1时,去掉对应的观测......
在Nikon实体显微镜下对家蝇幼虫的消化道进行了解剖,观察到家蝇幼虫的消化道分为3个部分:前肠,中肠,后肠,其中以中肠最长,最粗,前胃变成黄褐色,中......
本文介绍了利用电子计算机模拟的随机数所构成的模拟观测值,采用导线计算公式直接推出贯通点偏差的贯通误差预计方法。该方法所得......
In this paper,design,re-design,and performance of a long-standing very deep excavation,which was originally planned to d......
伽玛暴是宇宙中最剧烈的爆发现象之一,观测伽玛暴预警和暂现源实验卫星(Compton Gamma-Ray Observatory/Bursts and Transient Sour......
伽玛暴能谱νFν的峰值能量Ep是伽玛暴一个很重要的观测物理量,各种仪器观测的伽玛暴νF_ν谱的峰值能量Ep分布都很宽。根据初始洛......
基于地面的 gamma 光线天文学的地在最近的年里享受了快速的生长。当越来越多的来源在 TeV 精力被检测,这块地成熟并且成为现代天文......
摘要海表面風场可以用于获取许多大气和海洋现象的信号,高质量、高时空分辨率的海表面风场数据产品将有利于海洋-大气动力过程的研......
介绍了ComptonGRO卫星对Ⅱ暴的最新观测结果。观测表明,γ暴源的空间分布是各向同性但不均匀的。这种分布基本上排除了γ暴起源于银盘内中子星......
介绍了本星系群中最大的旋涡星系M31(仙女星系)的基本观测性质。与银河系结构类似,M31的基本成分包括:核、核球、盘和晕。对以上各个......
M51系统包含巨旋涡星系M51和相对较大且较近的伴星系NGC5195.M51离银河系较近,由尘埃消光带来的观测不确定性也就不十分显著,从而可以......
In this paper, we propose a new parametrization for Om(z) diagnostics and show how the most recent and significantly impro......
结合Swift和Fermi两个卫星的各自优点,选择Fermi/GBM和Swift/BAT同时触发的伽玛暴观测数据,发现GBM暴持续时间的平均值比BAT暴要小......
The variability of γ-ray sources listed in the third EGRET catalog is studied using three variability indices. These in......
The 21 centimeter (21cm) line emission from neutral hydrogen in the intergalactic medium (IGM) at high redshifts is stro......
为了充分利用数值模式的预报产品信息,首先对数值模式预报产品的误差进行了分析,针对误差分析结果,首次提出了一种新的基于模式预报倾......