DFF

The Detection of DFF Gene in Four Species of Fish

4种鱼中DFF基因的检测

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。

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。

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。

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。

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。

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。