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penman
这是本人原创程序，用于水利、水文、气象类专业研究时常见的利用彭曼公式进行蒸发估算的问题。(A program that can be used to uate evaporation based on Penman method.)
- 2015-08-06 18:02:06下载
- 积分：1
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seis88
说明： 地震数据反演处理软件，程序ANRAY95是汉堡大学地球物理研究所Gajewski和Psencik等编写的ANRAY86和ANRAY89的修改版本,适用于用射线的方法数值模拟三维各向同性或各向异性介质中地震波场传播问题。
(Inversion of seismic data processing software, the program is ANRAY95 Institute of Geophysics, University of Hamburg Gajewski and Psencik prepared ANRAY86 and ANRAY89 such as a modified version of the method applied to numerical simulation using ray three-dimensional isotropic or anisotropic media in the dissemination of seismic wave field问题.)
- 2010-03-25 13:00:08下载
- 积分：1
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yuce
用灰色预测理论实现负荷预测，可以任意取点(Gray prediction theory to achieve load forecasting, you can take an arbitrary point)
- 2021-04-27 09:58:44下载
- 积分：1
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样品检验项目系统
这是一个用vb＋SQL Server数据库编写的样品检验代码。包括样品的购买库存以及检验的各项程序，是一个很好的vb数据库参考代码(with vb+ SQL Server database prepared by the test sample code. The samples include the purchase of inventory and inspection procedures, is a good reference source database vb)
- 2005-03-23 18:11:17下载
- 积分：1
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powernode
牛顿－拉夫逊法潮流计算
基本步骤：
（1）形成节点导纳矩阵
（2）将各节点电压设初值U，
（3）将节点初值代入相关求式，求出修正方程式的常数项向量
（4）将节点电压初值代入求式，求出雅可比矩阵元素
（5）求解修正方程，求修正向量
（6）求取节点电压的新值
（7）检查是否收敛，如不收敛，则以各节点电压的新值作为初值自第3步重新开始进行狭义次迭代，否则转入下一步
（8）计算支路功率分布，PV节点无功功率和平衡节点柱入功率。(Newton-Raphson method flow calculation basic steps : (1) formation of nodal admittance matrix (2) to set up the initial node voltage U, (3) the initial node-generation-related demand. calculated that the constant term formula Vector (4) nodes will be incorporated into the initial voltage-seeking, calculated Jacobian matrix elements (5) solving that equation, seek to amend the vector (6) to strike a new node voltage value (7) to check whether convergence, if not restrained. concentrated in the nodes of the new voltage as the initial value since the first three steps to re-start the narrow iterations. Otherwise, turn into the next (8) Calculation branch power distribution, PV nodes reactive power and balance-node into power.)
- 2007-07-10 19:08:09下载
- 积分：1
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Surveying-Adjustment-Program-Design
《测量平差程序设计》（宋力杰编著）一书的源码(" Surveying Adjustment Program Design" (Song Lijie eds) source)
- 2013-07-23 23:28:23下载
- 积分：1
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972883872013_BEPS_GLOBAL_REVISE_5_4
可用于beps模型的构建，运用visual c++代码(Can be used to construct the BEPS model)
- 2020-11-10 19:39:46下载
- 积分：1
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seismicwaveofshanghai
上海人工波
需要地震波的朋友可以下来(Shanghai artificial seismic waves need friends can down)
- 2021-02-22 15:39:42下载
- 积分：1
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ICRS2ITRS transformation
将icrs坐标系转换到ITRS坐标系。matlab代码(ICRS to ITRS transformation)
- 2020-07-18 23:58:47下载
- 积分：1
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forecast1130
自己辛苦编写的双色球彩票统计预测程序. 为得到下载积分,忍痛贡献.
visual c++ 2010, 开发. windows 7 64bit, 16GByte内存需求, 4核处理器
并行计算, STL C++,
能够快速遍历计算全部号码分解组合的概率.
贡献出来心痛. 希望联系我,找份喜欢的工作.(souce codes of double Color ball lottery statistical forecasting program, desinged by myself.
visual c++ 2010 stl, parallel computing. operation requirement under windows 7 64bit, 16GByte memory and 4-core processor.
Rapidly traverse calculation of the the probability of all decomposition and all combination code numbers.
it have me heartache to contribute my codes for get download points. Hope to contact me, help me ge one job.)
- 2012-12-02 16:55:59下载
- 积分：1
