查询词典 piecewise regulated function

Attenuation vs repression The trp operon is regulated by both repression(which determines whether transcription will occur or not)and attenuation.Other operons for amino acid biosynthetic pathways may also be regulated by both repression and attenuation or only by attenuation.

弱化作用与阻遏作用的比较 trp操纵子同时受到弱化作用和阻碍作用的调控，其他氨基酸生物合成途径的操纵子也可能受弱化作用和阻碍作用的调控，或者仅有弱化作用调控。

The installation, positioning and turning of the work piece are driven by the DC speed regulated motor, and the speed of the DC motor is regulated by the pulse width, for stable and reliable speed regulation.

该设备工件安装定位转盘旋转由直流调速马达驱动，直流马达调速采用脉宽调速，调速稳定可靠。

In order to promote the learner's self-regulated learning, the researchers often provided some external metacognitve supports in the interactive multimedia environment by two ways. The first is giving some helps such as the adaptive advises, the cognitive map or the navigating tools; the second is embedding some metacognitive prompts such as the self-explanation question or the reflective question. These metacognitve supports can help the learner solve the current problems, but it must not benefit the development of the self-regulated learning of the learner.

对于如何促进多媒体环境下学习者的自我调节学习，研究者们往往设法在多媒体环境中向学习者提供外在的元认知帮助，如适应性建议、认知地图或导航工具等，或者在学习者的学习过程中适时提供元认知提示，如要求自我解释或提供反思性问句等，这些外在帮助或提示可能有助于学习者解决当前问题，但不一定有利于学习者自身的自我调节学习能力的发展。

With the algebraic result in form of piecewise function expressions, the excitation and propagation processes of stress waves, including the longitudinal wave, the transverse wave, and Rayleigh-wave, are discussed in detail.

基于该分段函数形式的代数结果，纵波、横波、Rayleigh波等应力波成分在弹性表面的激发和传播过程得到详尽分析，其中很多结论是已有的解析积分结果或者数值计算结果不曾得到的。

General method, including steepest descent method, conjugate gradient method and Dynamic Programming, is to search piecewise functions as the approximation with numerical methods on the base of Bellman\'s principle of optimality or the Hamiltonian function.

动态规划与智能仿生算法尤其适用于梯度信息不可得的情况。单一的优化方法用于不同情况下的化工动态优化问题未必可行有效，为此本文针对具体情况，提出了多种解法的集成策略。

Piecewise linear function space is chosen as finite element space. The scheme is total variation bounded and is formally second order accurate in space and time.

理论分析表明，格式具有总变差有界的性质，而且空间和时间离散形式上具有二阶精度。

The piecewise function of the relationship between the full width at half maximum of the centre bright fringe and the rectangular aperture width was put forward as well.

给出的中央亮条纹强度半最大值宽度与矩形光阑边长关系的拟合表达式，可为激光应用装置的设计提供理论支持。

However, the smoothness and convergence of these methods are not satisfactory. Because cubic spline function can be a piecewise, and its second order derivative is continuous, it is smooth and convergent.

但以上算法的光滑性和收敛性不好，而三次样条函数具有连续的二阶导数，且可采用分段函数的形式，具有很好的光滑性和收敛性。

The technique of parameters normalization based on piecewise estimating the cumulative distribution function is performed in this paper. In this way the non-Gaussianity in the means of the cumulative distribution of Mel-cepstral parameters is decreased. Thus GMMs with fewer mixtures could model them precisely.

本文提出了一种基于分段估计概率分布函数的规整方法，在概率分布的意义上降低特征参数偏离高斯分布的程度，从而可以用较低混合度的高斯混合模型对其建模。

In the case of time discrete model obtained by traditional scheme, for the discontinuous switch, the cost function become piecewise due to the discretized error.

在离散情况下，对不连续"开关"，离散使代价函数出现有限个间断点。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。