DFF

The result revealed that the lifetime of DFF and DCF were remarkably increased, and their properties of photobleaching resistance were significantly enhanced.

结果表明，与荧光素相比，DFF和DCF荧光寿命显著提高，抗光漂白性能明显增强。

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A new auto-focusing algorithm based on Depth from Focus ( DFF) was presented according to the properties of the automatic iris imaging system.

针对自动虹膜图像采集装置的成像特点，本文提出了一种新的基于对焦深度法的自动对焦算法。

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Logical control circuit design: this part includes the design of DFF, non-overlap clock generate and so on.

逻辑控制电路设计：D触发器、不重叠时钟脉冲发生器等模块的设计。

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In the method DFF ( depth from focus), aiming at the characteristic of the images, we proposed that Wiener filter and image brightness normalization can be apply as preprocessing tools.

首次提出用维纳滤波和图像亮度归一化对图像做预处理，使对焦深度法的评价曲线形状得到明显的改善。

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A novel design plan of divider was presented. In the higher frequency band, M/ S DFF structured by CMOS SCL was used to divide to satisfy the high speed command.

提出了一种新颖的分频器设计方案，在高频段采用改进的CMOS源耦合逻辑（SCL）结构的主从D触发器进行分频，以满足高速要求；

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The Detection of DFF Gene in Four Species of Fish

4种鱼中DFF基因的检测

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The decision circuit of the chip is applied with a DFF using SCFL structure and its tuned phase shifter with differential current amplifiers according to the principle of vector addition.

该芯片的判决电路采用SCFL（源级耦合晶体管逻辑）的D触发器结构，根据矢量叠加原理设计，采用差动电流放大器构成可调移相器。

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The ICAD ( DFF-45) gene plays an important role in the process of apoptosis ( programmed cell death).

ICAD（DFF-45）基因在细胞凋亡过程具有重要的作用。

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The low dff value in physiologically active organs, such as young leaves, flowers, and stem apices indicated that the nodular nitrogen fixation and the application of nitrogen fertilizer were important for their development.

dff值表明，在花序、顶心、绿叶生理功能旺盛器官，比茎干和衰老器官低，说明生物固氮或土壤供氮对紫云英功能器官发育的重要性。

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Objective To study the clinical effect of Diabetic Foot Formula ( DFF) and its influence on hemodynamics of arteria dorsalis pedis ( ADP).

目的观察以糖足方为主综合治疗糖尿病足（DF）的临床疗效及其对足背动脉血流动力学变化的影响。

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