平衡法

In this paper, the Changchun city was taken as the study area. The data about 10 years on dustfall were collected, the change tendency of dustfall was disclosed. Dustfall samples from October 2005 to February 2006 and samples of pollution sources were collected also. The samples were measured and analyzed by particle size analyzer and ICP-AES. EF and CMB receptor model is used to make source apportiontment of the dustfall.

本文以长春市城区为研究对象，收集了长春市近10年的降尘资料，揭示了长春市降尘量的变化趋势；采集了2006年10月~2007年2月的降尘样品以及污染源样品，对降尘样品进行了粒度分析、元素分析；应用化学质量平衡法和富集因子法，从定量和定性两个方面对降尘的来源进行了解析，并根据分析结果提出了防治降尘污染的对策和建议。

The greatest height of footwall cutting is determined through the theoretical analysis of cut-off grade method and breakeven point method.

通过对边界品位法及盈亏平衡法的理论分析，确定下盘最大切岩高度。

By means of the generalized wedge method and the limit equilibrium method, the most dangerous slip face and the safety factor of a slope, can be ascertained; and then the stability of the left slope of Sankeng Reservoir in Guangdong Province.

分别采用广义楔形体法及极限平衡法对三坑水库左岸山体进行了稳定分析，找出了山体最危险滑面，确定了在山体内存在软弱面情况下的土坡安全系数，对山体稳定性做出了评估，并提出了相应的安全措施。

Then steady forced vibration of the nonlinear Disk spring-mass system under base excitation and force excitation is obtained individually by using the Fourier series analysis and harmonic balance method.

详细探讨了考虑静力载荷影响的、具有弹性非线性和Coulomb摩擦阻尼非线性的碟簧元件的建模和动力学特性，首先利用Fourier级数分析技巧和平均法研究了非线性碟簧-质量系统的自由振动，讨论了影响自由振动的振幅和频率的各种因素，然后利用Fourier级数分析技巧和谐波平衡法研究了地基激励和力激励下非线性碟簧-质量系统的强迫振动，通过详细的参数研究考察了非线性碟簧元件的减振性能特征，最后采用修正的稳定性分析方法研究了两种激励下稳态响应的稳定性。

AbstractPaper introduces the exponential function and homogeneous balance method for solving nonlinear partial differential of the exact solution, and then comparing the reference solution, and ultimately new exact traveling wave solution.

摘要论文主要介绍指数函数法和齐次平衡法求解非线性偏微分的精确解，然后对比参考文献的解，最终得到新的精确行波解。

First, buckling collapse models were discussed, and the analysis on the stability of rock slope was carried out through rigid body limit equilibrium method and finite element method.

首先，对岩质边坡的失稳破坏的模式进行探讨，用刚体极限平衡法和有限单元法对岩质边坡进行稳定性分析。

Then,calculates the slope\'s stabilization by the limit equilibrium method and the limit element method,evaluates some factors that influence the slope\'s safety factor .

然后利用极限平衡法和有限元法对滑坡进行稳定分析，并对滑坡的安全系数影响因素进行评价，为治理提供依据。

Firstly, the function sinx that appears in the simple pendulum equation is replaced with a polynomial of degree 3 using Maclaurin series expansion and Chebyshev polynomial approximation. Subsequently, the resulting equation which is a Duffing type equation is approximately solved with combing Newton's method and the harmonic balance method.

首先，利用Maclaurin展开和Chebyshev多项式加速技术将单摆振动方程中的正弦型恢复力用三次多项式近似代替，得到一个Duffing型方程；然后，将牛顿法与谐波平衡法结合起来建立Duffing方程的解析逼近周期及周期解，从而给出单摆振动的解析逼近解。

Based on the finite element method,the minium energy principle and the voltage equilibrium principle have been developed to calculate the ampere-turn distribution of parallel coils in a shell-type transformers.

本文基于有限元技术，提出计算壳式铁心变压器并联线圈中电流分配的最小能量法和电压平衡法，并证明了两种方法的等价性。

In this paper, an orthogonal function method is presented based on the idea to suppose periodic solution with the method of harmonic balance.

本文根据谐波平衡法假设周期解的基本思想，提出了一种分析非线性振动特性的正交函数法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。