A common property of many large networks is that the vertex degrees follow a scale-free power-law distribution, the BA model features two generic mechanisms: the networks expanding and the pref.
实际网络中节点分布的一个广泛特征是度的无标度幂率分布，BA模型认为形成这种特征的两个主要因素是网络增长和节点间的偏好连接。
We adopt two kinds of small world model and scale free BA model to construct the beam transport network.
本文采用两种小世界模型和无标度模型构造出了束流输运网络。
The two methods of model simplification are presented for large scale systems, they are the least square approximation and the rational fraction approximation.
本文针对大系统的频域模型简化提出了两种方法：最小二乘近似法和有理分式近似法。
Part two: This paper analyzed the degree of predicting precision affected by decomposing scale coefficient of wavelet cycle model and various kinds of reservoir inflow runoff series.
第二部分，本文分析了小波周期模型的分解尺度数和各种不同入库径流序列对模型预测精度的影响程度。
The JWL state equation and two-term ignition and growth model are used in small scale gap test.
将JWL状态方程和两项式点火增长模型用于小隔板试验中。
The hybrid scale of mixed crude was calculated by using the mathematical model and the parameters of biomarkers of two kinds of crude oil.
利用混合原油的生物标志物参数和数学关系式，计算了西部弧形构造带两种原油的混合比例。
Based on the singular perturbation method and two time -scale decomposition, the flexible - link robot model is decomposed into two subsystems: the slow subsystem and the fast subsystem.
基于奇异摄动方法和两时标分解，柔性连杆机器人的模型分解成两个子系统：慢子系统和快子系统。
Building the experiment system based on the SDD and validating the feasibility on large scale documents and "two theme shift" model.
构建了基于SDD算法的中文农业信息检索实验系统，验证大规模文档集下sdd算法的可行性和“二次主题漂移”模式的可行性。
In the second part, in order to explore further the mechanism responsible for scale-freenetworks, we introduce two extended models of the Barabási ?Albert model.
第二部分，为进一步探讨无标度网络的形成机制，我们研究加点、加边、重连和去边四种演化过程的随机网络模型。
After theoretical analysis, small scale model tests are done. Two slope angles: 1:1 and 1:1.2;
理论分析之后，作者进行了室内静力模型试验，模拟了两种边坡坡比：1：1和1：1．2；
For improving the efficiency of power system stability analysis, it is necessary to study two time scale dynamic models of power systems and relevant model reduction.
为提高稳定计算的效率，对复杂的电力系统模型进行化简，以实现系统化降阶非常必要。
Methods Two-level variance component model was used by MLWIN2.0 to evaluate the reliability of satisfaction scale within investigators.
方法采用软件MLWIN2．0，运用两水平方差成分模型评价满意度量表调查员间的信度；
Two-scale IR imaging model of sea surface based on rigid object is built in this paper. The scattering properties of sea surface are discussed from the aspect of active imaging.
本文在研究海面的红外成像特性中，建立了基于刚体的双尺度成像模型，从主动成像方面讨论了海面散射特性的变化规律。
Two different subgrid-scale combustion models were used for the Large-Eddy Simulation (LES) of turbulent chemical reaction flows in a model combustor with V-gutter flame holder.
在三维任意曲线坐标系下采用不同的亚网格燃烧模型对环形燃烧室火焰筒气液两相湍流瞬态反应流进行大涡模拟。
Simulation results show that our two PSO-based approaches are effective for the small scale encoding problem, and could rapidly converge at at the minimum level for an output of the simulation model.
仿真结果表明，这两种算法对于较小规模的编码问题具有很好的效果，能快速有效地进行DNA编码序列设计。
Simulation results show that our two PSO-based approaches are effective for the small scale encoding problem, and could rapidly converge at at the minimum level for an output of the simulation model.
仿真结果表明，这两种算法对于较小规模的编码问题具有很好的效果，能快速有效地进行DNA编码序列设计。
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