从下到上
- 与 从下到上 相关的网络例句 [注:此内容来源于网络,仅供参考]
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PSO is a population-based optimization algorithm, which mimics the social behavior of animals in a flock. It makes use of individual and group memory to update each particle position allowing global and local search optimization. The objective function considered was the total weight of the structure subjected to stresses, displacements and forces constraints. The effects of the parameters were investigated as well and such combination of tuning parameters promote a better global search behavior avoiding premature convergence while rapidly converging to the optimal solution. Results showed the effectiveness of the proposed method by comparing with ANSYS Design Optimization Tool (zero-order method). The PSO with the tuning parameters makes it an ideal method for offshore wind turbines foundations optimization tasks.(2) A reliability analysis method for pile foundation bearing axial loads based PSOThe performance function of pile foundation's axially bearing capacity sometimes is nonlinear and complex, on the basis of geometric meaning of structural reliability index, an optimum model with PSO for structural reliability analysis under arbitrary random variables was established, The PSO algorithm is very efficient to solve global optimization problemsIts use in structural reliability field presents not only the advantage of its facility of implementation, but also the possibility to obtain the design point and the failure probability with a good accuracy. In addition, PSO is a zero order algorithm, for no derivative is necessary for its implementation.
本文的研究针对桩式海上风机基础结构的特点,在国内外有关研究成果的基础上对海上风机基础结构优化设计理论和可靠度方法一些相关问题进行了较为深入的研究,具体做了以下几个方面的工作:(1)基于粒子群优化的桩式海上风机基础确定性优化设计方法桩式海上风机基础的优化设计是一个复杂的、非线性约束的优化问题,针对传统的基于梯度信息的优化方法在处理非线性问题中易陷入局部最优解的问题,本文将一种耦合惩罚函数的PSO算法引入到海上风机基础结构概念设计中,PSO算法是从群体动物聚集觅食这一活动中受到启发而发展的,该算法利用个体和群体的信息共享不断改进自身的位置从而进行局部和全局最优搜索,本文中以桩和三脚架连接段直径及壁厚为设计变量,以基础总重量作为优化的目标函数,在给定的约束条件下建立了三脚架基础优化数学模型,另外本文还研究了PSO参数变化对结果的影响,协调的参数组合可以避免陷入早熟收敛而能够快速的获得全局的最优解,通过与ANSYS优化模块的计算结果比较验证了该方法的有效性,本方法为海上风机基础的确定性设计提供了一条有效的途径。
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For the quarter ended September 30, net revenues from the cigarette business grew 21% to Rs 2,200 crore from Rs 1,812 crore in the corresponding period last fiscal on the back of better realisations due to price hikes and improved product mix, as it has upgraded to filter cigarettes.
在价格上涨和因对过滤嘴卷烟进行改良出现的产品组合改善而取得的收入增长的支持下,截至9月30日的这一季度,卷烟业务的净收入增长了21%,从上一财政年度同期的181.2亿卢比增长到220亿卢比。
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Like James Curran stated, Michael Birken's article covers the game from top to bottom, there isn't much light I can shed over this.
像詹姆斯柯伦说,迈克尔比尔肯的文章涵盖了从上到下的游戏,没有多少,我可以摆脱了这一点。
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Note : This program interface entire operation consists of four parts : Part I : Part II : Regional expression input Results : The third part of regional output decimal placement of regional median Part IV : Key for the menu from top to bottom in the direction of expression and the nearest switching between spaces.
注意:此程序界面整个行动包括四个部分:第一部分:第二部分:区域表达输入结果:第三部分区域输出小数位数设置区域第四部分:关键菜单从上到下的方向表达与最接近的空间之间切换。
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Based on the results of field experiment and regional soil phosphorus rough estimate, the determinacy non-mechanism transport model was set up.
在土壤剖面中,不同形态的磷素含量从上到下总体呈下降趋势。
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Lid done with stainless steel plate floor, built-silicate insulation, Furnace Door size 350 mm wide, 580 mm high, the overall lateral wall elevate electric holding furnace door, Furnace Door closure of the Furnace Door as a whole round , Furnace Door sealing performance enhancements, dial made of stainless steel by 1600 m / m turntable, used to load the workpiece, the entire wheel of the plane is not division, the operator can be stacked workpiece, as dial-rotation every 40 minutes a week , when the operator can not see dial in almost rotation, and Furnace Door open the larger operators can be arbitrary and out of the workpiece, and without time limits can dial in 20-60 minutes a week to arbitrary rotation speed, regardless of Furnace Door hoist, from the start of work on the dial continuous rotation, and there was no need for chain hoist Furnace Door, the need to stop rotating, just press the control cabinet, stop button, the gate Furnace Door, operators to seize its own, activated installed in the furnace door open and close button.
炉盖采用不锈钢板做底板,内置硅酸铝保温,炉门尺寸宽350mm,高580mm,侧墙体中整体向上提升式电动保温炉门,炉门关闭时整个炉门为一个圆形整体,炉门密封性能增强,转盘采用不绣钢制成1600m/m转盘,用以承载工件之用,整个转盘为平面不分工位,操作人员可以任意堆放工件,由于转盘每40分钟旋传一周,工作时操作人员几乎看不到转盘在转动,加上炉门开的较大,操作人员可以任意进出工件,而不受时间限转盘可以在20--60分钟旋转一周的时间任意调速,不论炉门启闭、转盘从启动工作就不间断的旋转,没有任何必要与炉门启闭进行联锁,需要停止旋转时,只需按下控制电柜上的停止按钮即可,炉门的启闭,由操作人员自行掌握,按动安装在炉门边的启闭钮即可。
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His coat has split down the back.
他的外套背部从上到下撕裂了。
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His coat had split down the back .
他的外套背部从上到下撕开了。
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So space them out, nicely draping them as you go around the tree from top to bottom.
让它们之间留出间隔,从上到下美观地缠绕。
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Well," I says,"it's a rough gang, them two frauds, and I'm fixed so I got to travel with them a while longer, whether I want to or not -- I druther not tell you why; and if you was to blow on them this town would get me out of their claws, and I'd be all right; but there'd be another person that you don't know about who'd be in big trouble.
啊,"我说,"那可是一帮穷凶极恶的家伙啊,这两个骗子。我事已至此,非得跟他们一起走一程,不管我愿意还是不愿意——至于是什么原因,我暂时还不能对你说——你如果告发他们,那这个镇子上的人,倒是会把我从他们的爪子下搭救出来,可是这里还牵涉到一个你不知道的人。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。