preconditioned
[.pri:kən'diʃən]
[ preconditioned ]
n.先决条件, 前提
v.预先准备
词形变化:
动词过去式: preconditioned | 动词过去分词: preconditioned | 动词现在分词: preconditioning | 动词第三人称单数: preconditions |
preconditioned
词形变化:
动词过去式: preconditioned | 动词过去分词: preconditioned | 动词现在分词: preconditioning | 动词第三人称单数: preconditions |
preconditioned
动词 precondition:
put into the required condition beforehand
同义词:precondition
形容词 preconditioned:
having already been put into a suitable condition
preconditioned
■Such as use preconditioned conjugate gradient (PCG) algorithm to reduce the iterative steps, use modified multipole numbers method to reduce the computation of each step.
(1)在给定精度前提下减少迭代步数,采用适合于快速多极子方法的矩阵预条件技术,改善矩阵的条件数,加快迭代收敛。
■EBE(element-by-element)-PCG(preconditioned conjugate gradients) parallel computation
EBE-PCG并行计算
■The cases of PBSCT+ABM,auto-HSCT and allo-HSCT were preconditioned with MAC regimen chemotherapy.
PBSCT+ABM、auto-HSCT和allo-HSCT均采用MAC方案预处理。
■ZHENG H, HE X R.Improved preconditioned conjugate gradient method and its applications to FEA in engineering[J].Applied Mathematics & Mechanics,1993, 14(4): 353-362.
[22]郑宏,葛修润.改进的预处理共轭斜量法及其在工程有限元分析中的应用[J].应用数学和力学,1993,14(4):353-362.
■A Preconditioned Method for the Finite Element Equations of Three Dimensional Elasticity Problems
三维弹性力学问题中有限元方程的预处理方法
■Three-Term Preconditioned Conjugate Gradient Method and Trust Region Subproblem
三项预处理共轭梯度法与信赖域子问题
■Compared with PBS control side , TH-positive neurons inthe SNdecreased by 68%, TH-positive neurons in the SN preconditioned by specific inhibitor SB203580 increased significantly .
与PBS对照侧相比,LPS注入黑质导致TH阳性细胞数下降至38%; SB203580预处理可以显著增加TH+细胞数达63%(P<0.05)。
■The data must be preconditioned so that it can be used to forecast the performance trend of the aeroengine.
为了利用数据对发动机性能趋势进行预测,必须对数据进行预处理。
■He says North-South relations - including economic cooperation and transfers of humanitarian aid - will be preconditioned on North Korea's cooperation in ending its nuclear weapons programs.
他说,包括经济合作和提供人道救援在内的南北韩关系的先决条件是北韩为结束其核项目所做的合作。
■Arguing with those who have preconditioned mindset,questionable objectives and ill intentions is a waste of time.
但是,不要向那些在北京奥运期间非法举行抗议活动者和流氓学习,他们是应该避免的坏例子。
■An interesting observation is that the classical iterative methods can all be viewed as instances of an preconditioned system with different preconditioners.
值得注意的是,经典的求解线性方程组的迭代法也都能够看作是求解采用不同的因子预处理之后得到的线性方程组的迭代法。
■Secondly, we absorb the preconditioning idea of Davidson method and preconditioned Lanczos method and propose preconditioned inexact Newton method and preconditioned block inexact Newton method.
其次借鉴Davidson方法和预处理Lanczos方法的预处理思想,提出了预处理不精确Newton方法和预处理块不精确Newton方法。
■Liu Xingping, Hu Jiagan, Multisplitting preconditioned iterative methods, Parallel Algorithms andApplications, 9(1996),131-144
刘兴平,椭圆型差分方程的并行迭代算法,数值计算与计算机应用,14:3(1993
■Observation of MDA Contents and CCO Activities in Cultured Myocardium Preconditioned by Norepinephrine
去甲肾上腺素预处理培养乳鼠心肌细胞丙二醛含量和细胞色素氧化酶活性观察
■A Preconditioned Method for the Finite Element Equation of the Stress Concentration Problem in Anisotropic Plate
各向异性板应力集中问题有限元方程的预处理方法
■Since there is no finite element subspace of rotated Q1 finite element space, a special coarse space is used. we prove the condition number of preconditioned problem is optimal.
因为旋转Q1有限元空间不包含任何协调的有限元子空间,所以我们使用了特殊的粗网格空间。我们证明预优问题的条件数是最优的。
■The rats in 3NP preconditioned group(PC) were intraperitoneally pretreated with different dosages of 3NP (10,20,40mg/kg, respectively) and at different time (2 hours, 1,3,5,7 days, respectively) before making PD models.
在体3NP预处理组于造模前2h、1d、3d、5d、7d分别腹腔注射不同剂量3NP(10mg/kg、20mg/kg、40mg/kg),观察6-OHDA损毁2周后大鼠的行为学;
■A nonlinear preconditioned quasi-Newton method without inversion of a first-guess covariance matrix in variational analyses
在变化分析没有初估值协方差阵的反向情况下一个非线性先决条件准牛顿方法
■In avoidance phase, we combine avoidance into numerical integration by using preconditioned conjugate gradient method.This speeds up the whole calculation.
在碰撞修正阶段,通过采用预条件共轭梯度法进行数值积分,将碰撞修正直接融合在数值积分过程中,提高了计算速度。
■NUMERICAL SIMULATION OF UNSTEADY LOW-SPEED FLOW ON PRECONDITIONED METHOD
基于预处理法非定常低速流动的数值模拟
■One's gaining more wealth as a market subject is preconditioned by holding necessary wealth, or he shall lose his standing in the market.
如果人的基本物质需要得不到满足,人在政治、道德方面的发展和进步将受大极大的限制,甚至倒退.
■Effects of enflurane on antioxidant ability of ischemic preconditioned rat hearts in vitro
安氟醚对缺血性预处理大鼠心肌抗氧化能力的影响
■Post hypnotic suggestions are transmitted by radio waves triggering a certain preconditioned behavior...
实施催眠暗示是通过无线电波传送,激发某种预先设定的行为。”
■The result show that this algorithm can more accurately detect and visualize the vortices of flow field preconditioned with similar algorithm efficiency.
实验证明,在算法效率相当的前提下,该方法能够更加准确地识别、显示流场的涡旋结构。
■a surface preconditioned to receive paint
对准备油漆的表面预先处理
■a surface preconditioned to receive paint;
对准备油漆的表面预先处理;
■a surface preconditioned to receive paint; customers preconditioned to buy a product.
对准备油漆的表面预先处理; 预购产品的顾客。
■Shoots regeneration frequency increased significantly when cotyledons were preconditioned in MSB5 medium with 1 mg/L 2,4-D and 1 mg/L BA for 3 days and then cultured in MMO medium containing 4.5 mg/L BA.
将子叶在附加1 mg/L BA和1 mg/L 2,4-D的MSB5培养基中预培养3天,再转入含有4.5 mg/L BA的MMO培养基中培养,可显著增加芽再生率,并且可将再生周期比对照缩短1/3。
■Expression of brain-derived erythropoietin in the hippocampus of low dose 3-NPA preconditioned gerbils
小剂量3-硝基丙酸预处理后鼠脑海马脑源性促红细胞生成素的表达
■parallel preconditioned conjugate gradient
并行预处理共轭梯度法
■The finite-difference frequency-domain method with preconditioned conjugate-gradient technique is presented for three-dimensional electromagnetic scattering problems.
引入预条件共轭梯度法,提出了结合频域有限差分法分析三维电磁散射问题。
■Whenever the coefficient matrix A is a Z-matrix, for a few of preconditioned methods, a sires of comparison theorems and Stein-Rosenberg type theorems of generalized block AOR, SSOR methods are proved, respectively.
当A为一般Z矩阵时,对多种预条件方法,给出了关于广义块AOR,SSOR迭代法的一系列比较定理及相应的Stein-Rosenberg型定理。
■Peter D ,Jianhua C ,Dipak K D .Role of lipid rafts in ceramideand nitric signaling in the ischemic and preconditioned heart [J ].Journal of m olecular and Cellular Cardiology ,2006 ,40 :313 .
徐德民,赵强.心肌保护新药心肌肽素在心脏瓣膜替换术中的应用研究[J].中国循环杂志,2006,25(4):54-57.
■Changes of myocardial microcirculation and collagen fibers in rat heart preconditioned with adenine sulphate
心脏硫酸腺嘌呤预处理大鼠心肌微循环及胶原纤维的变化
■Therefore, if good quality and reasonablely-scheduled project time are preconditioned, how to do well in the item cost management is the sticking point to increase the enterprise profits.
所以在保证质量、合理安排工期的前提下,如何搞好工程项目的成本管理是提高企业效益的关键。
■By use of multigrid method, this paper proposes a preconditioned iteration method solving the boundary value problem of elliptic equations, the proof of convergence is given.
摘要利用多重网格法的思想,构造出一种求解椭圆型方程边值问题的预处理迭代格式,并给出了收敛性证明。
■Support theory is a mathematical framework to analyze extreme eigenvalues and condition numbers of preconditioned systems and is developed with symmetric positive definite (spd) systems at first.
支撑理论是一个用于分析预处理方程组的最大(或最小)特征值和条件数的 代数架构,它最初产生于对称正定的线性方程组。
■Numerical examples show that the preconditioned bi-conjugate gradient method is speedy,high-performance and applicable to solve system of large-scale complex linear equations.
数值算例表明该算法求解速度快,可靠高效,能够应用于大型复线性方程组的求解。
■The Analysis of Three-Dimensional Electromagnetic Scattering Problems by Using the Preconditioned Conjugate-Gradient Technique Together with the Finite-Difference Frequency-Domain
有限差分法结合预条件共轭梯度分析三维电磁散射问题
■The level of overall energy consumption and the composition of energy structure in the first twenty years of this century is a preconditioned basis for China's energy construction planning.
本世纪初二十年中国能源消耗的总量将迟到什么水平,其品种结构又将如何,这是规划能源建设的前提依据。本文通过弹性预测法、回归预测法、间接预测法三种方法预测上述指标。
■In this paper,we will present preconditioned AOR iterative method with two different preconditioner, and give corresponding convergence and comparison results.
本文中我们将提出预条件算子不同的预条件AOR 迭代法,并给出相应的收敛性以及比较性定理。
■Preconditioned according to JEDEC Level 4a standards, the CLCC-6 flat package is lead (Pb)-free and RoHS-compliant.
根据JEDEC Level 4a标准预处理的CLCC-6封装无铅(Pb),且符合RoHS。
■SOLVING POWER FLOW EQUATIONS WITH INEXACT NEWTON METHODS PRECONDITIONED BY INCOMPLETE LU FACTORIZATION WITH PARTIALLY FILL-IN
用不完全LU分解预处理的不精确潮流计算方法
■The linear algebra system is solved by a combination of the preconditioned conjugate gradient method (PCG) with the fast Fourier transform (FFT), where T.
用预条件共轭梯度法与快速傅里叶变换的组合算法求解该线性方程组,其中预条件器采用T。
■Objectie. To ealuate the outcome of preconditioned peripheral neres as a permissie enironment in axonal regeneration of the injured spinal cord.
目标:评估预先处理的周围神经可否作为脊髓损伤轴性再生的有效的环境。
■Objective To investigate the expression of HSP70 in rat liver preconditioned by ethanol and its influences on the liver ischemia-reperfusion injury.
目的 探讨胃饲乙醇预处理对大鼠肝脏缺血再灌注损伤的影响。
■Aim:To observe change of binding activity of HIF-1 with erythropoietin(EPO) hypoxia response element(HRE) in the hippocampus of mice preconditioned to hypoxia and explore relationship between the changes and the preconditioning.
目的:观察低氧预适应对小鼠海马组织HIF-1与EPO的低氧应答元件(HRE)结合活性的变化,探讨这种变化与低氧预适应形成的关系。
■Objective To study the protection mechanisms of brain tissue homogenate extracts taken from hypoxia preconditioned mice against hypoxic injury in PC12 cells.
目的研究缺氧预适应小鼠脑匀浆提取液保护作用的机制。
■Keywords realistic cloth, particle system, elastic deformation ,bend, shear,,,,, bounding box, collision detection and avoidance, hierarchical structure model,,,,, preconditioned conjugate grad
真实感衣服;粒子系统;弹性形变;弯曲;剪切;边界盒;碰撞检测与修;正;层次结构模型;预条件共轭梯度法;真实感布纹理;
■Two Properties of Preconditioned AOR Iterative Methods for Linear Systems
线性方程组的AOR预条件迭代法的两个性质