A Novel Iris Recognition System Using Morphological Edge Detector and Wavelet Phase Features
A Novel Iris Recognition System Using Morphological Edge Detector and Wavelet Phase Features
复制标题
利用形态学边缘检测器和小波相位特征的新型虹膜识别系统
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
Babak Nadjar Araabi
中科院分区：
文献类型：
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作者：
Ahmad Poursaberi;Babak Nadjar Araabi
本发明的特征在于一种用于在气门中诱导往复运动的配气机构，包括：可枢转地安装在气门一端的杠杆；与杠杆接合以限定其间支点的摇臂，并在其一端与气门啮合；第一凸轮，与摇臂的另一端啮合；第二凸轮，与杠杆的顶部啮合；以及机构，在摇臂两端的中间点处引导地将摇臂与杠杆互连，以防止摇臂之间的相对滑动并确保摇臂的后部凸轮平稳地跟随第一凸轮。
The present invention features a valve train for inducing reciprocative motion in a valve which includes a lever pivotally mounted at one end thereof, a rocker arm which engages the lever to define a fulcrum point therebetween, and which engages a valve at one end thereof, a first cam which engages the other end of the rocker arm, a second cam which engages the top of the lever and a mechanism which guidingly interconnects the rocker arm, at a point intermediate of the ends thereof, with the lever for preventing relative slip therebetween and for ensuring that a cam following portion of the rocker arm smoothly follows the first cam.