The geologic condition in mountainous district is complex variable , in different geologic , it is very difficult to find the most economically design scheme . stability of 14 high - cut slopes in guangdong province is analyzed with typical rock mass structure analysis method and stereographic projection method , and with the numerical simulation method udec this paper simulated the excavation and reinforcement courses of the important slopes . some conclutions and suggestions are based the analysis above 本文结合广东某省道沿线14个高陡岩石边坡的开挖和支护方案的选择设计,运用常用的岩体结构分析方法和赤平投影方法对边坡的稳定性进行了分析,采用udec数值模拟方法对一些重点边坡的开挖支护进行了模拟,得出了以下一些结论: 1 、边坡支护形式的选择应遵循“安全绿色、水土保持、恢复自然、环保之路”的设计原则。
Briefly introduces the academic tools of soft measurement based on multivariate statistical project method , such as principle component analysis , principle component regression , partial least squares and neural network . 3 . analyzing the characters of the gas - fluidized polyethylene process , the paper propose design of control system 介绍了基于多元统计投影方法软测量技术的主要数学基础，包括：主元分析、主元回归、偏最小二乘和神经网络，为后续的研究和应用打下理论基础。
On the basis of appraising a traditional method , the method of the stereographic projection and proportionally stereographic projection of a solid volume , this paper has introduced such methods as determination of dominant discontinuities , kinematic tests for rock - mass failure modes , geometrical judgment of a removable block , and determination of a key block , extending perfecting the traditional method , and thus making it has better suitability or availability and practicality 摘要本文在评价用传统方法即赤平极射投影和实体比例投影方法分析节理边坡稳定性的基础上，结合具体工程实例引进了优势结构面的确定、岩体破坏模式的运动学判释、可移动块体的几何判定和关键块体的确定等方法，使传统方法得到拓宽和完善，从而具有更好的适用性和可操作性。
In chapter 5 , the authors study the convergence properties of the gradient projection method for the constrained optimization problem . in this chapter , a new step - size rule , which avoids fulfiling the classical line search and includes choosing a constant as the step size as a special case , is presented and analyzed 第五章研究了求解约束最优化问题的梯度投影方法，在步长的选取时采用了一种新的策略，这种策略不需要进行传统的线搜索且包含步长取常数这种特例，在较弱的条件下，证明了梯度投影方法的全局收敛性。
There are several ways to obtain the dbhf self - energy from the g matrix used before , such as a simple method , where the dirac structure of the nucleon self - energy is obtained from the momentum dependence of the single - particle energy , and a projection method . all of them have their drawbacks 通常的从动量依赖的单粒子能量中提取自能的办法和投影方法都具有一定的局限性，最近，由schiller和muether发展了提取核子自能dirac结构的新方法，即把g矩阵分解为裸相互作用部分v和关联效应部分g 。
