图1是各种工业沥青的的软化点——针入度标绘图。图1中的四个长方形按美国材料试验学会ASTM D 312的规定概括了1-4类工业沥青的性能。该图说明对于不同的用途要求工业沥青有不同的性能,工业沥青应具有135°F以上的软化点。沥青的性...图1是各种工业沥青的的软化点——针入度标绘图。图1中的四个长方形按美国材料试验学会ASTM D 312的规定概括了1-4类工业沥青的性能。该图说明对于不同的用途要求工业沥青有不同的性能,工业沥青应具有135°F以上的软化点。沥青的性能可以通过众所周知的处理方式,如溶剂提取法、空气吹制法等类似的方式加以改进。对于制造工业沥青的技术,人们已熟悉使用催化剂的空气吹制过程,但是空气吹制过程需要络合物和昂贵的空气吹制设备,还会不断碰到许多严格的空气污染规章。而且,空气吹制法需要一段很长的吹制时间。本发明的工业沥青是在没有空气吹制的情况下,通过着手混合特殊的沥青材料。展开更多
This paper propoes the water level measuring method based on the image, while the ruler used to indicate the water level is stained. The contamination of the ruler weakens or eliminates many features which are require...This paper propoes the water level measuring method based on the image, while the ruler used to indicate the water level is stained. The contamination of the ruler weakens or eliminates many features which are required for the image processing. However, the feature of the color difference between the ruler and the water surface are firmer on the environmental change compare to the other features. As the color differeaces are embossed, only the region of the ruler is limited to eliminate the noise, and the average image is produced by using several continuous frames. A histogram is then produced on the height axis of the produced intensity average image. Local peaks and local valleys are detected, and the section between the peak and valley which have the greatest change is looked for. The valley point at this very moment is used to detect the water level. The detected water level is then converted to the actual water level by using the mapping table. The proposed method is compared to the ultrasonic based method to evaluate its accuracy and efficiency on the various contaminated environments.展开更多
This paper describes the experimental analysis of eye-movement during the generation of a trajectory by the human upper limb, carried out to elucidate the human mechanism for visual-information recognition. The result...This paper describes the experimental analysis of eye-movement during the generation of a trajectory by the human upper limb, carried out to elucidate the human mechanism for visual-information recognition. The results showed that the subjects adopted an eye-movement pattern called the subgoal travel method （fixating in the vicinity of the fingertip while drawing/tracing） for the complete circle. Subsequently, when the target trajectory was one of incomplete shapes, some subjects continued following the subgoal travel method by drawing the missing part of the target trajectory, while others followed two other eye-movement patterns. The first is called the center-point fixation method, in which subjects consider the center point as the most important point for generating the target-image trajectory, and therefore, fix their gaze at the center point throughout the experiment. The second is called the point-to-point travel method, in which the subjects＇ gazes shift between the center point of a displayed image and their fingertip. Further, the results confirmed that the eye-movement pattern, movement accuracy, and drawing speed are correlated. Additional experiments clarified the conditions for which different eye-movement patterns are suitable： the subgoal travel method is suitable for high-accuracy drawing; the center-point fixation method is suitable for higher-sneed drawing展开更多
文摘图1是各种工业沥青的的软化点——针入度标绘图。图1中的四个长方形按美国材料试验学会ASTM D 312的规定概括了1-4类工业沥青的性能。该图说明对于不同的用途要求工业沥青有不同的性能,工业沥青应具有135°F以上的软化点。沥青的性能可以通过众所周知的处理方式,如溶剂提取法、空气吹制法等类似的方式加以改进。对于制造工业沥青的技术,人们已熟悉使用催化剂的空气吹制过程,但是空气吹制过程需要络合物和昂贵的空气吹制设备,还会不断碰到许多严格的空气污染规章。而且,空气吹制法需要一段很长的吹制时间。本发明的工业沥青是在没有空气吹制的情况下,通过着手混合特殊的沥青材料。
基金supported by the Brain Korea 21 Project in 2010,the MKE(The Ministry of Knowledge Economy,Korea)the ITRC(Information Technology Research Center)support program(NIPA-2010-(C1090-1021-0010))
文摘This paper propoes the water level measuring method based on the image, while the ruler used to indicate the water level is stained. The contamination of the ruler weakens or eliminates many features which are required for the image processing. However, the feature of the color difference between the ruler and the water surface are firmer on the environmental change compare to the other features. As the color differeaces are embossed, only the region of the ruler is limited to eliminate the noise, and the average image is produced by using several continuous frames. A histogram is then produced on the height axis of the produced intensity average image. Local peaks and local valleys are detected, and the section between the peak and valley which have the greatest change is looked for. The valley point at this very moment is used to detect the water level. The detected water level is then converted to the actual water level by using the mapping table. The proposed method is compared to the ultrasonic based method to evaluate its accuracy and efficiency on the various contaminated environments.
文摘This paper describes the experimental analysis of eye-movement during the generation of a trajectory by the human upper limb, carried out to elucidate the human mechanism for visual-information recognition. The results showed that the subjects adopted an eye-movement pattern called the subgoal travel method （fixating in the vicinity of the fingertip while drawing/tracing） for the complete circle. Subsequently, when the target trajectory was one of incomplete shapes, some subjects continued following the subgoal travel method by drawing the missing part of the target trajectory, while others followed two other eye-movement patterns. The first is called the center-point fixation method, in which subjects consider the center point as the most important point for generating the target-image trajectory, and therefore, fix their gaze at the center point throughout the experiment. The second is called the point-to-point travel method, in which the subjects＇ gazes shift between the center point of a displayed image and their fingertip. Further, the results confirmed that the eye-movement pattern, movement accuracy, and drawing speed are correlated. Additional experiments clarified the conditions for which different eye-movement patterns are suitable： the subgoal travel method is suitable for high-accuracy drawing; the center-point fixation method is suitable for higher-sneed drawing
