查询词典 drift

In final chapter, we will discuss a perturbation method to solve the one-dimension Fokker-Planck equation with a constant diffusion coefficient and time-dependent drift coefficient.

所以我们在论文最后介绍一种新的方法来处理某一种Fokker-Planck方程式，这个方法就是微扰近似法。

The purpose of this thesis is to present a direct perturbative method to solving certain Fokker-Planck equation, which have constant diffusion coefficients and some small parameters in the drift coefficients.

中文摘要本篇论文应用微扰法来解某些Fokker-Planck方程式，而这种Fokker- Planck方程式具有扩散系数是常数以及漂移系数是很小的参数的特徵。

According to the demand of high magnetic field power supply, reference is increased with a set ramp rate and stops at a set stable value, so reference system is composed of digital setting and digit to analog converting circuit. But the stability of reference is mostly guaranteed by the performance of D/A circuit, so D/A circuit is particularly studied in reference system. The scheme of D/A circuit, the selection of DAC and its voltage reference, hardware anti-jamming design and PCB design are discussed in detail, and software of remote control and PLC are discussed in brief. Zero-flux DC current transformer well satisfies the demands of the high stability of Load current detection unit, so the principle of zero-flux DC current transformer is analyzed; in the mean time a project which detects the long term stability is designed. During 8 hours, analog signal which is detected with high precision digit multimeter is recorded in computer at 1HZ frequency by GPIB communication. The drift error source and related parameters are explained in the compare-amplify part. Detailed subtraction circuit is designed; also amplifier chip and periphery components are selected and verified according to the theory of error analysis.

根据强磁场电源的需求，参考源应按照软件设定的斜率逐渐上升到设定稳态值，则参考源系统应由数字给定和数模转换电路两大部分组成，而参考源的稳定度主要依靠完成数模转换功能的模拟电路的性能来保证，因此本文对参考源系统的研究以数模转换电路为重点，分别从电路方案的确定、数模转换芯片及其基准电压源的选取和验证、电路板硬件抗干扰和PCB设计几方面进行了论述，然后对数字给定部分的远控组态和PLC程序设计作了简要介绍；采用零磁通原理的直流电流转换器很好地满足了对负载电流检测单元高稳定度的需求，本文详细分析了零磁通检测的原理，并在选定此种类型电流转换器的基础上设计了一套检测长期稳定度的方案，8小时内以1秒为采样周期，通过计算机Labview程序和高精度数字电压表的GPIB通讯，将被高精度数字电压表数字化后的模拟信号采样值连续记录至计算机中；比较放大环节简要阐述了漂移产生的原因和相关参数指标，确定了具体的减法电路形式，并根据误差分析理论对运算放大器和外围元器件进行了选取和验证。

Move about aimlessly or without any destination, often in search of food or employment同义词:roll, wander, swan, stray, tramp, roam, cast, ramble, rove, range, drift, vagabond1.(of e.g. speech and writing) tending to depart from the main point or cover a wide range of subjects同义词:digressive, discursive, excursive2. of a path e.g.

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You dilute the strength of your marriage when you let your eyes drift towards other women.

你稀的力量，您的婚姻，当你让你的眼睛漂移对其他妇女。

Chapter 5 establishes the probabilistic numerical method for the Dirichlet problem relevant to Brownian motion with drift.

第五章介绍与漂移布朗运动相联系的Dirichlet问题的概率数值方法。

During the high-voltage device design, the thick epitaxial layer LDMOS which is compatible with current technology was researched. This device used piecewise VLD and multiple region structure F reduce field layer. The using of the F reduce field layer effectively reduce the surface electric field of the device, shorten the length of its drift region, enlarge the choice of range of the ion implant dose of the P layer, and effectively restrain the disadvantageously affection on the breakdown voltage of the interface charge Qss.

在高压器件研究中对与现有工艺相兼容厚外延LDMOS进行研究，该结构采用分段变掺杂多区P~-降场层，有效降低器件的表面电场，缩短器件的漂移区长度，增大P~-降场层注入剂量的选择范围，并有效地抑制界面电荷Qss对器件耐压的不利影响。

Subjectively, dark areas frequently drift off into gray due to the high black value, which is especially disagreeably noticeable in dark scenes of games or movies.

主观上，黑暗的地方经常漂移到了灰黑色的原因是高价值，这是特别不愉快的游戏或电影的黑暗场景明显。

The love course of life shines in the corner of life abscurely like leisurely clouds, which drift slowly, illuminate our hearts and warm our lif.All of these remind us of the happiness, disconsolation in the past years.

人生的感情历程，隐隐约约地闪烁在生命的一隅，像一片悠悠的云，舒缓地飘着，照耀着心房，温暖着人生，使人情不自禁地感怀生命中曾经有过的那一份喜悦，那一份感奋，那一份失落，那一份惆怅。

According to the discriminability of each cue between target and background, measured by Fisher rule, an adaptive mechanism is presented to update the cue weight. Furthermore, a selective submodel update strategy is utilized to alleviate the model drift.

根据各个特征子模型与当前目标及背景的相似性，提出了一种基于 Fisher 可分性度量的权值自适应更新机制；同时为了克服模型更新过程中的漂移，基于子模型的可分性提出了一种选择性更新策略，实现了在变化场景下的鲁棒跟踪。

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？