搜索结果: 1-11 共查到“理学 LM”相关记录11条 . 查询时间(0.051 秒)
The generating function for the Dirichlet series Lm(s)
Dirichlet series generalized Euler and class number ∧-alternating augmented m-signed permutation r-cubical lattice Springer number
2014/6/3
The Dirichlet series Lm(s) are of fundamental importance in number theory. Shanks defined the generalized Euler and class numbers in connection with the Dirichlet series, denoted by {sm, n}n≥0. We obt...
Classification of Kac representations in the logarithmic minimal models LM(1,p)
Classification of Kac representations logarithmic minimal models LM(1,p)
2011/3/3
For each pair of positive integers r, s, there is a so-called Kac representation (r, s) associated with a Yang-Baxter integrable boundary condition in the lattice approach to the logarithmic minimal m...
Multi-objective calibration of the land surface scheme TERRA/LM using LITFASS-2003 data
land surface LITFASS-2003 data heat flux
2009/5/18
The turbulent sensible and latent heat fluxes simulated in the operational weather forecast model LM have been checked with data from the field experiment LITFASS 2003 (Lindenberg Inhomogeneous Terrai...
基于遗传LM算法的涂层目标光谱偏振BRDF建模分析
涂层目标 遗传LM算法 光谱偏振BRDF 小面元模型
2010/5/4
通过比较测量方法测量得到绿漆涂层木板探测目标在400～720 nm的光谱偏振二向反射分布函数值，从获得的户外试验测量数据入手，分析与探测角、波长之间的关系，通过有限探测条件得到的光谱偏振二向反射分布函数值(BRDF)建立光谱偏振BRDF模型，来描述探测目标的偏振二向反射特性。其中利用基于小面元的模型建立光谱偏振BRDF模型，利用遗传算法和Levenberg-Marquardt(LM)算法相结合的优...
Stability of limit cycle in a delayed IS-LM business cycle model
IS-LM business cycle delayed differential equations
2010/9/14
In this paper, we extend the work of J. Cai [1] in the nonlinear case using the investment function of the Kaldor-type. Actually we investigate the direction of the Hopf bifurcation and the stability ...
On the dynamic behavior of a delayed IS-LM business cycle model
IS-LM business cycle delayed differential equations
2010/9/13
In this paper, we formulate a delayed IS-LM model of business cycle. This model is represented by the Gabisch model [2] in considering the Kalecki assumption on time lag investment [5], i.e. there is ...
Process-oriented statistical-dynamical evaluation of LM precipitation forecasts
Process-oriented statistical-dynamical evaluation LM precipitation forecasts
2010/1/28
The objective of this study is the scale dependent evaluation of precipitation forecasts of the Lokal-Modell (LM) from the German Weather Service in relation to dynamical and cloud parameters. For thi...
弱序列式回缩 (LM)-空间的特征
诱导极限 弱零调性 Retakh's 条件
2007/12/11
本文研究 Retakh's 条件 $(M_0)$,正则性和弱序列式回缩性之间的关系. 对于 (LM)-空间, 弱序列式回缩性等价于正则性加上一个介于 $(Q_0)$ 和 $(M_0)$ 之间的条件. 对于 (LN)-空间, 我们获得了更满意的结果, 证明了弱序列式回缩性等价于正则性加上条件 $(M_0)$, 也等价于一个非常 弱的正则性条件加上条件 $(M_0)$ (见文献[1--28]).
Dynamics of extracellular polymeric substance (EPS) production and loss in an estuarine, diatom-dominated, microalgal biofilm over a tidal emersion–immersion period
extracellular polymeric substance diatom-dominated
2014/4/23
We studied patterns of production and loss of four different extracellular polymeric substance (EPS) fractions—
colloidal carbohydrates, colloidal EPS (cEPS), hot water (HW)–extracted and hot bicarbo...
应用人工神经网络原理，以Levenberg-marquardt back propagation(LM-BP)算法，对光谱严重重叠的邻苯二酚、间苯二酚和对苯二酚3组分进行同时测定。挑选283.5, 279.5, 276.5 nm处3波长为3种苯二酚的测量波长，按正交设计表L25(56)配置25组标准混合溶液，对3种苯二酚进行训练，平均平方误差(MSE)达到最小值0.083 114 3;同时预测了模...
The influence of substratum type and nutrient supply on biofilm organic matter utilization in streams
substratum type nutrient supply
2014/5/19
We investigated the effect of benthic substratum type (sand and rocks) and nutrient supply (N and P) on biofilm
structure and heterotrophic metabolism in a field experiment in a forested ...