查询词典 smooth curve

The dynamic surface controller design method of the nonlinear autopilot for high maneuver missile is developed. Based on the smooth second-order dynamic sliding mode, the designed virtual controls are smooth enough and needn't smooth by integral filters when designing the inner loop controller with back-stepping method. So it overcomes the problem of explosion of terms.

提出了高机动非线性导弹自动驾驶仪的动态面控制器设计方法，该方法基于光滑二阶动态滑模，所设计的虚拟控制足够光滑，在利用反步法设计内环控制器时不需要进行积分滤波克服了反步法所带来的项数膨胀问题。

The existing stone cutting tool, the tool bit is constituted by the sole grade's grinding material, when cutting the rough stone, the cutting speed is quick, the cutting efficiency is high, but the cutting surface fluctuates in a big way, becomes rough, after the cutting, grind and polishing take long time to do, if use the fine grinding compound, the cutting face is smooth, but the cutting speed is slow, the cutting efficiency is low, therefore the existing stone material cutting tool cannot have the high efficiency to cut the stone which have the smooth cutting surface, in view of this, how to keep the high working efficiency and get smooth cutting surface?

现有石材切具刀头由单一粒级的磨料构成，使用粗料时，切割速度快，切割效率高，但切割面起伏大，变得粗糙，切割后研磨抛光耗费时间长，使用细磨料，切割面较平整，但切割速度慢，切割效率低，因此现有石材切具不能高效率地切割出平整的石材，针对这一现状，如何既能高效率切割，又能使切割面保持平整呢？

The highest heat transfer coefficient for air flowing in the nine 3-D IFT with staggered arrangement fins is No9 tube. In the turbulent region, the heat transfer coefficient of No9 tube is a factor of 10.36 compared with smooth tube, and its thermodynamic performance coefficient is as high as 6.49; The average Nusselt number in the most superior 3-D IFT with staggered arrangement can be increased by about 1.04 times in the laminar flow, and 6.38 times in the transitional flow as compared with that in the smooth tube. The friction factor between fluid and tube wall can be 0.96 times in laminar flow, and 12.68 times in transitional flow as compared with that inside the smooth tube.

在进行实验的九根肋叉排三维内肋管中，换热最强的No9管与光管相比，在紊流区的换热强化比平均可达10.36倍，阻力增大比约为4.06倍，其热力性能系数高达6.49；在过渡流区的换热强化比平均可达6.38倍，同时阻力增大比约12.68倍；在层流区的换热强化比为1.04倍，而阻力增大比仅约0.96倍。

Methods Marrow-derived mesenchymal stem cells were isolated and purified from mouse femoral bone and shinbones using differential adherent methods. Cells at the third passage were induced by 20% FBS in conditioned medium, conditioned medium alone, 20% FBS or 10% FBS alone respectively. Mouse aortic smooth muscle cells were cultured as the positive control. Levels of mRNA and protein expression of myoeardin and several smooth muscle cells marker genes were determined by immumofluorescenee, RT-PCR and Western blot before and 3, 7, 10, 14d after the induction. The presence of smooth muscle myofilaments was detected by using transmission electron microscope.

采用伞骨髓贴壁法分离骨髓问充质干细胞，CM联合20%FBS诱导骨髓间充质干细胞，同时设立持续10%FBS、单20%FBS及单CM诱导下的骨髓间充质十细胞对照组和SMC阳性对照组，分别于诱导前及诱导3、7、10和14 d时观察细胞形态的变化，并在相应的时间点用免疫荧光法、逆转录聚合酶链反应法、Western blot半定量分析法榆测myocardin以及SMC表面各种标志基因的表达变化，用透射电镜检测诱导后细胞内肌丝存在以此来证实诱导分化成功。

This paper carries on automobile smooth-going characteristic test, firstly using data gathering system and portable computer. Automobile smooth-going characteristic is synthetically evaluated according to IOS26311CD-1991. Automobile smooth-going characteristic body health evaluating data is set up under the pulse.

本课题首次运用国际先进的数据采集系统和便携式笔记本电脑对汽车进行在线平顺性试验，根据国际标准ISO2631／CD-1991对汽车平顺性进行综合评价，首次提出了脉冲输入下汽车平顺性健康评价指标，为脉冲输入下汽车平顺性的质量评价提供了直接的判断依据。

Based on a localization principle and subband decomposition, monoscale ridgelet and curvelet were proposed, both of which were derived from ridgelet transform and can efficiently deal with smooth images with smooth edges including straight and curve singularity. They, hence, are of better application potention. sparse representation;optimal basis;ridgelet;curvelet;image denoising;non-parametric estimation

单尺度脊波和Curvelet变换由脊波变换发展而来，分别利用了函数局部化和频带剖分的思想，将脊波理论发展到了一个更高的阶段，这两种变换都能"近似最优"的表示直线和曲线奇异，因而具有更好的应用前景。

The results show that the subsidence curve and horizontal movement curve are not continuous and smooth, but are unsymmetrical with some variation caused by geological conditions.

结果表明，沉陷和水平移动曲线不连续也不平滑，由于地质条件的影响，其变化是不对称的。

From the control, the static characteristic curve should be continuous, smooth, no mutation; dynamic characteristics of common frequency response curve or curves to express.

从控制要求来说，静态特性曲线应连续、光滑，没有突变；动态特性常用频率曲线或响应曲线来表示。

But one major weakness of the empirical ROC curve estimator is its jagged form, since the true ROC curve is a smooth function.

在ROC 曲线的各种非参数估计中，经验ROC 曲线是最常用的方法，但经验ROC 曲线的函数值是跳跃的，往往与真实ROC 曲线的光滑性不符。

A smooth curve fitted to the set of paired data in regression analysis; for linear regression the curve is a straight line.

在回归分解中相对于一批对数的光滑曲线；对线性回归来说曲线是直线。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？