The positive frequency of methylation of P16 gene promoter in HPP-CFC of normal contrasts was higher than that of psoriatic patients.
正常对照骨髓HPP-CFCP16基因启动子甲基化阳性率较高，而银屑病患者骨髓HPP-CFC P16基因启动子甲基化阳性率低于正常人。
Considering the integer-order systems analysis is happened only in positive frequency domain, this paper is concerned about the extended frequency analysis method for fractional-order control systems.
鉴于整数阶控制系统主要进行正频域分析，本文论述了分数阶控制系统的扩展频域方法。
Similarly, the power law pattern can be seen in the frequency and magnitude of the monthly swings, positive and negative, in us industrial production from 1919 to February 2009 (Exhibit 2).
类似地，幂指数定律模式也可在美国1919 - 2009年1月间的工业生产的月度摆动(绝对值)频率和级别中被发现(表2)。
And the frequency grade and rainfall of rainstorm have a positive correlation.
暴雨频次、等级、雨量的基本特征具有正相关关系；
But if above positive real condition is satisfied only within some frequency range, the convergence of FXLMS algorithm is dependent on the spreading of power spectral density of the reference signal.
若上述正实条件仅在某些频带上满足，则FXLMS算法的收敛将依赖于参考信号功率谱密度的分布。
The research team found that runners who simply shortened their strides (by increasing stride frequency by 5 to 10 percent) achieved many presumably positive changes in forces and motions.
研究小组发现跑步者只要缩短步伐(通过提高步频5 - 10%)，力量和运动可能发生许多正面的改变。
Compared with positive realness, finite frequency positive realness is a new notion, and it also finds some important applications in control theory.
相比于正实性，有限频率正实性则是较近提出的概念，并且亦在控制理论中找到了大量应用。
Same function as DPP-250: frequency control, adjustable stroke, touch heating, positive forming, capsule orientating, image and character register, air cushion heating-seal and chequered plates.
产品介绍：功能与250型类同：变频调速、行程可调、接触加热、正压成形、胶囊调头、图文对版、气垫热封、上下网纹。
The results show that the strength characteristics is random, the frequency distribution is in positive skew distribution.
结果表明，其抗压强度具有明显的随机性，频率分布里正偏态。
Increasing flash frequency increased latency time of the negative wave, but decreased the amplitude of the small positive wave.
随刺激频率增加，负向波潜伏时延长，而小正向波振幅逐渐减小。
The selecting frequency network usually located in the amplifying circuit, or located in the positive feedback network.
其中的选频网络一般可以设置在放大电路中，也可以设置在正反馈网络中。
This control method retains the positive properties of conventional sliding modecontrol. and solves the problem of high frequency shiver. as well as increases the robustness of the controller.
这种控制方式既保留了传统的滑动模态控制的优点，又解决了高频抖动的问题，同时也提高了控制的鲁棒性。
Sensitivity --- In diagnostic tests, the frequency with which the test result is positive when the disorder is present.
在诊断性检测中，阳性检测结果的准确性。
This control system retains the positive properties of conventional sliding mode control, which simplifies the process of design and solves the problem of high frequency shaking.
这种控制方式既保留了传统非线性变结构控制的优点，又简化了设计，解决了高频抖动的问题。
There was positive correlation between hospitalization frequency and degree of psychological demands.
住院次数与心理需求程度呈正相关。
The frequency modulation effects of positive dipole (unipole) forcing source on LFO is stronger than negative dipole (unipole), and the wave oscillation quicken evidently.
正偶(单)极强迫源对大气低频振荡的调制作用强于负偶(单)极，波动振荡明显加快。
When the signal spectrum falls into two or more channels, a method of spectrum assembling in frequency domain is used to obtain the positive or negative half spectrum.
在频域中当信号频谱处于两个或更多个滤波器通道时，通过频谱组合办法直接得到实信号的正半谱或负半谱。
Conjugation tests of both parental bacteria and their L-forms were positive, but conjugation frequency in the latter was markedly lower than that in the former. After L-forms of E.
原型大肠杆菌和相应的L型菌接合试验均阳性，但后者接合频率较前者明显低；
The degradation of methyl orange was high, which was related with the peak value, pulse frequency and duty circle of positive pulse and anode area.
甲基橙的脱色程度与峰值电压、脉冲频率、占空比、阳极电极面积等有关。
The variable polarity power supply can satisfy the welding process of the aluminum and aluminum alloy by adjusting the current frequency, positive and negative current time and amplitude value.
调节正负半波的幅值、频率及占空比能满足铝及铝合金的焊接工艺要求。
In audio, a very low frequency oscillation often resulting from a positive feedback path in an amplifier system.
在音响设备中出现的振荡频率极低的低频振荡，常因放大系统的正反馈回路引起。
The methods of realization of nonlinear stiffness and applications of combined positive and negative stiffness in ultra-low frequency vibration isolation are analyzed.
分析了刚度非线性的实现方法及正负刚度并联技术在超低频垂直隔振系统中的应用。
All the positive RNS can be obtained in low frequency stimulation.
RNS阳性患者在低频刺激时即可获得阳性结果。
The spectrum of amplitude modulated signal are two half magnitude spectrums of base band signal positive and negative shifted by a carrier or R. F. frequency.
调幅讯号之频谱为一半强度基频讯号之频谱分别正负位移一射频或载波之频率。
The principle of stiffness offset with the positive and negative stiffness parallel were introduced and through analysis the natural frequency and the vibration transmissibility can be reduced.
介绍正负刚度并联相消原理，通过分析可知应用该原理可以有效降低系统的固有频率，减小隔振传递率。
This makes achieving negative permeability under extremely low frequency as well as the permeability switching between positive and negative value rapidly through a magnetic field pulse into possible.
这使实现极低频的负磁导率以及通过磁场脉冲实现磁导率在正负之间快速跳变成为可能。
Entire annealing, spot annealing and high frequency annealing and other measures were adopted afterwards, but had no positive effect.
以后，虽采取了整体退火、局部退火和高频退火等措施，但效果不佳。
Ac Alternating current (ac) is electric current that alternates between a positive maximum value and a negative maximum value at a characteristic frequency, usually 50 or 60 cycles per second (Hertz).
交流交流是指电流在正负最大值之间以特定的频率变动，通常频率为50或60赫兹。
Ac Alternating current (ac) is electric current that alternates between a positive maximum value and a negative maximum value at a characteristic frequency, usually 50 or 60 cycles per second (Hertz).
交流交流是指电流在正负最大值之间以特定的频率变动，通常频率为50或60赫兹。
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