正量
- 与 正量 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In Chapter 4, A detailed comparison between the realization of Cholesky decomposition and OR method is given, a systolic/wavefront array made of general purpose DSP is used to realize the adaptive beamforming at a moderate speed, and a wavefront array to extract the adaptive weights which is necessary in some applications is designed. In Chapter 5, the author proposed a new structure to realize the space time adaptive processing. First 1~q using the FFr and the truncating infinite sequence and sone optimizing method, a much simpler architecture can be acquired in realizing the three portion of channel processing: quadrature sampling, pulse compression and adaptive equalization.
第五章研究并提出了用全通用DSP模块设计空时二维自适应信号处理机的新方案,首先用快速付立叶变换和对长序列截断处理的重叠保留法以大大减少的运算量完成了处理机通道处理部分的正交插值、脉压、自适应均衡三个功能块的长阶数线性卷积运算,接着对自适应波束形成提出了多种实现方案,分析了多种方案下的运算量和设备要求,指出在不同通道数、不同数据吞吐率、不同自适应要求时这几种方案有不同的可行度和实现难度,并针对实际要求确定了一种运算田N、的实现方案,对自适应波束合成部分的大量贝玉以良元组咸肋冈络结拘和处凰闺和羽凶挝娠昨了优化设计以威少设备复杂性,构成了设备量大夕父伯小、们g团回高、辜于生回阴田闩引愧快的空时二维自适囱戏升引毗四机。
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The orthogonal array design shows that the initial concentration of solution is the most important factor.
正交实验结果显示溶液初始浓度是影响吸附量的最主要因素。
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Combining the experimental results and theoretical analysis, the following work has been accomplished.(1) Reasons of the decrease of interelectrode capacitance and the increase of discharge gap caused by the powder suspended in dielectric fluid are explained. And the mechanism that surface quality of workpiece improved by powder-mixed EDM is analyzed from this viewpoint.(2) The variation regularity of the percentage of silicon on the machined surface of workpiece has been summarized according to the experiment results when silicon powder was added into the working fluid. The entropy is introduced to explain the reasons for this variation regularity by thermodynamics.(3) The dimensional accuracy is greatly influenced by the overcut resulting from discharge gap and electrode wear in practice application. Empirical formulas for the overcut in EDM and powder-mixed EDM are established based on the experimental results using the ternary linear regressive method in this paper.(4) The influence of main factors on the machined surface characteristics has been evaluated based on the orthogonal experimental design method.
通过一系列普通电火花加工与混粉电火花加工的对比实验,运用工艺实验和理论分析相结合的方法,重点做了以下工作:(1)探讨了粉末颗粒导致极间电容减小、放电间隙增大的原因,并从这个角度解释了混粉电火花加工可以改善工件表面质量的机理;(2)以混合硅粉的电火花加工为例,实验得出峰值电流和脉冲宽度对加工表面层成分中硅元素含量的影响规律,并引入熵的概念从热力学的角度对硅元素含量变化的原因寻找了理论依据;(3)在实际加工中,由于粉末的加入使放电间隙变大,这使得混粉电火花加工的尺寸精度难以控制,本文利用三元线性回归的方法,在实验数据的基础上,建立了两种电火花加工过切量的计算公式;(4)将正交试验法应用于混粉电火花加工实验研究,并通过对实验指标极差的直观分析,得出各电参数对加工指标影响的敏感程度。
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If the low temperature and bethhoron bakeout of chemical molecules key is not fully cross-linked prefilming, not only no adhesion, having oftinned the offeris stick dirty, counterproductive, as printed on the next step for ink adhesion, so that separation oftinned difficulties for the chromatography (oftinned intine, on the back of the container appears sticky dirty would pollute the contents in the container).
如果烘烤温量伯矮,树脂洋的化学不合子键未充不合接联固化成膜,非但无附着力可言,还会变成马口铁背背粘脏,不入现不正印,下道工序因油不朱粘连,使马口铁不合弛艰难,感化套色(马口铁背背解容器边壁,不入现粘脏会浑浊容器洋的不形式物)。
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The experimental results show that the total number of inflammatory cells can represent the severity of chronic superficial gar iritis, but not of chronic atrophic gastritis although MICC of patients with CAG increas...
中性粒细胞计数可反映胃炎的活动状态,推荐一组MICC参考标准值;表明MICC总数与 HP感染呈正相关。即MICC总数越大,HF检出率越高,量也越大。
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In mechanics kinematics, Jacobin matrix may be calculated and simplified by vector constructing; Inverse solution and its restricting condition be given; Forward solution be solved by new-raphson method. The method need shorter time than optimization and has a lot of advantages in applying program; some relationship of velocity, acceleration, force and error of mapping from input to output have been given. Analyzing of theory base these researches.
在机构运动学研究方面,通过矢量构造的方式计算出了速度雅克比矩阵,简化了计算量;给出了机构位置逆解的计算过程及约束条件;利用Newton—Raphson法计算出了机构位置的正解,该算法比优化法计算时间短,而且利于实际编程;给出了机构输入、输出端速度、力、误差的映射关系,这些研究是机构理论分析的基础。
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Therefore, just like the direct material variance, when the labor cost for a task differs from standard, the direct labor variance can be divided into a labor efficiency variance and a labor rate variance.
正像直接材料差异那样,对一项工作的实际成本与标准成本之间的比较,直接人工成本也可以分成工时量差异和工资率差异两部分来分析。
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According to the result, the confidence region of unknown parameters in single-index models is constructed. Finally, we consider the test of correlation and heterogeneity for hierarchical nonlinear mixed-effects models. According to Laplace approximation expansion of integrated log-quasilikelihood, a class of score test statistics is proposed. Under some very mild conditions, we prove the asymptotic distribution of the test statistics is a standard X~2-distribution. Through a Monte Carlo simulation study, the finite sample performance is examined.
最后,我们研究的第四个问题是分层非线性随机混合效应模型的相关性与异方差性检验问题,依据对数拟积分似然的Laplace近似展开提出了检验统计量,在一些正则条件下,得到了检验统计量的渐近分布是一个标准的χ~2-(来源:d7d7A65BC论文网www.abclunwen.com)分布,通过Monte Carlo模拟研究了其小样本的表现,实例验证了其实际应用。
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The performances of leadless and cadmiumless fluxing agents for overglaze colors were studied based on alkali-boron-silicon fluxing agent system.
用正交实验法研究了在碱-硼-硅系统基础熔剂中,外加助熔助色成分MgO、CaO、SrO、BaO四种碱土金属氧化物的添加量及R2O:RO、SrO:CaO、RO:SiO2对无铅无镉釉上彩熔剂性能的影响规律。
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The fracture zones are characterized by rela-tive levorotation,shove and compression,but the distribution of strike slip is inhomoge-neous.
断裂活动的不均一性与平面最大剪应力分布不均匀成正相关,且各断裂均以相对左旋走滑兼挤压为特征,但是其走滑量的分布是不均匀的。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。