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lsystem
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  “l-system”译为未确定词的双语例句
     Based on the fungal growth model, the authors develop an environmentally adaptive parametric L system and present a fractal image generation algorithm in this paper. This algorithm not only uses biological understanding of the flow of nutrients through the fungus to control the growth, but also takes the influence of the environment which fungus grow in into full account. The images generated by this algorithm have natural branching structure.
     基于真菌生长模型,建立了环境自适应的参数L-system.在考虑真菌内营养物流动控制生长的基础上,充分考虑环境对真菌生长的影响.在此基础上,提出了基于真菌生长模型的分形图象生成算法,生成的图象分支自然、协调.通过环境调整,可有效控制图象的生成风格,特别适合工业图案设计和动画图案设计等领域.
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     Studies the difference between the fractal geometry and O's geometry, By studing the typical fractal system L system, its working principle ws explained, and applied to the fields of figure and image.
     探讨了分形几何与欧氏几何的区别。 以典型的分形系统L-system为例,说明其工作原理,将分形系统的原理应用到图形领域;
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     The limitation of searching Active Directory b y System.
     分析了 System.
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     Heberlein worked in university opened up NSM(The Network System Monitor).
     (The Network System Monitor)。
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     Exploring the Usage of Aptix System ExplorerTM
     Aptix System ExplorerTM使用方法初探
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     Understanding SYSTEM V Interprocess Communication in Linux
     理解Linux环境下SYSTEM V进程间通信
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  lsystem
Then an Lsystem grows the road network to service to the population density.
      
The first step of the inference procedure is the determination of the LSystem alphabet and axiom.
      
The elements of this genome define grammar rules for an Lsystem that generates a neural network topology.
      
The organism modeled by this LSystem grows by repeated cell subdivisions.
      
Usually, an Lsystem has in each of its tables a finite number of rewrite rules.
      


This Paper presents a method that can effectively determine how many and which constraints will be active constraints at an optimal design point in solving the optimization problem.The active constraints are chosen one by one, according to the projective direction of the objective function gradient on the tangent plan of the intersection of the active constraints chosen before, and the number of active constraints is gradually increase so that the gradients of these linearly independent active constraints will...

This Paper presents a method that can effectively determine how many and which constraints will be active constraints at an optimal design point in solving the optimization problem.The active constraints are chosen one by one, according to the projective direction of the objective function gradient on the tangent plan of the intersection of the active constraints chosen before, and the number of active constraints is gradually increase so that the gradients of these linearly independent active constraints will form a K-T cone to contain the objective function gradient. In the D J Y structural optimization program which is similar to the ACC-ESS-lsystem, this method is used for deleting inactive constraints to calculate the space trusses with 25 bars and 72 bars, a box-wing with elements and a delta-wing with 133 elements'.It is also used in the current SUMT program, to calculate some structural optimization problems with explicit nonlinear constraints.The results obtained are satisfactory.It is shown by the calculation that not only the number of constraints to be dealt with is cut down to a number no more than that of the design variables, but also the number of structural analysis is decreased, giving the same accuracy.And hence the computing efficiency is considerably improved.

本文提出一个在求解最优化问题时预测有效约束的方法.有效约束逐个地按目标函数梯度在有效约束集的切平面上的投影方向来选取,其数量逐渐增加,直到由这些线性独立的有效约束的梯度所形成的K-T锥能容纳目标函数梯度为止.

By exploring the management mode under the new Lsystem of direct management section of railway bureaus,the article describes that after giving full play to the professionalL management advantage of transportation section and strengthening the service function and management of comprehensive section,as well as system and management innovation,difference has been made and the railway reform and development has been facilitated.

探索铁路局直管站段新体制下的企业管理模式,发挥运输部门的专业管理优势,强化综合部门的服务管理职能,加强企业管理,强化制度创新,推进管理创新,促进铁路的改革和发展。

 
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