In current critical area models, it is generally assumed the defect outlines are circular and the conductors to be rectangle or the merger of rectangles. However, real defects and conductors associated with optimal la...In current critical area models, it is generally assumed the defect outlines are circular and the conductors to be rectangle or the merger of rectangles. However, real defects and conductors associated with optimal layout design exhibit a great variety of shapes. Based on mathematical morphology, a new critical area model is presented, which can be used to estimate the critical area of short circuit, open circuit and pinhole. Based on the new model, the efficient validity check algorithms are explored to extract critical areas of short circuit, open circuit and pinhole from layouts. The results of experiment on an approximate layout of 4 × 4 shifts register show that the new model predicts the critical areas accurately. These results suggest that the proposed model and algorithm could provide new approaches for yield prediction.展开更多
After analyzing 15 clinical case, 2 of which is especially representative, about perforating injury at the areaintegrates thoracic and abdominal cavities in our hospital from Jan. 1988 to Aug. 2001, the writers have s...After analyzing 15 clinical case, 2 of which is especially representative, about perforating injury at the areaintegrates thoracic and abdominal cavities in our hospital from Jan. 1988 to Aug. 2001, the writers have summarized some therapyon it. First, to avoid delaying surgery operation , those who are injured at that area seriously should be treated with surgeryoperations immediately without X ray and supersonic checks. Second, the positive check results of suspect patients should behelpful for diagnosis, however the negative ones also could not be excluded of the diagnosis clues. The writers think that theconcomitant observation results with the development of illness are most significant. Third, the emphasis of treatments for thoseinjuries should be paid on abdomen. Explore the abdomen is necessary for the situations that abdominal substantial organs bleedand vacuum organs break, thoracic close drainage is sufficient for treating most thoracic trauma cases. It has been improved to beconvenient to check the thoracic cavities by cutting off the diaphragma temporarily if necessary. Fourth, as it was reported that asmany as 97 per cent of patients will have visceral injury dues to abdominal gunshot wound, all gunshot wounds be done with anexploratory laparotomy without hesitation. Fifth, resuscitating of patients as soon as possible is the key to decrease the mortalityand complications. Sixth, acute pancreas injury should be treated as acute pancreatitis.展开更多
A wire rope defects detection method based on permanent magnet excitation is proposed.A detection system,mainly composed of permanent magnet excitation,distance detection,multi-sensor magnetic flux leakage signal acqu...A wire rope defects detection method based on permanent magnet excitation is proposed.A detection system,mainly composed of permanent magnet excitation,distance detection,multi-sensor magnetic flux leakage signal acquisition and data analysis device,is set up.According to the different characteristics of the multi-sensor magnetic flux leakage signal,the localized fault(LF)and loss of metallic cross-sectional area(LMA)signal is separated,and then the two defects can be detected.The experiments show that the method can effectively detect the two defects when they appear simultaneously on the wire rope.展开更多
在蚕茧分级过程中,常以疵点面积作为评价指标。为计算存在颜色缺陷的蚕茧的表面疵点面积,文中提出了一种融合色彩增强与投影展平的蚕茧疵点面积计算方法。首先,对亮度增强后的原始图像V通道进行阈值分割及矩形拟合,获取图像ROI(region o...在蚕茧分级过程中,常以疵点面积作为评价指标。为计算存在颜色缺陷的蚕茧的表面疵点面积,文中提出了一种融合色彩增强与投影展平的蚕茧疵点面积计算方法。首先,对亮度增强后的原始图像V通道进行阈值分割及矩形拟合,获取图像ROI(region of interest)区域;然后,在带颜色恢复的多尺度Retinex(multi-scale Retinex with chromaticity preservation,MSRCP)算法中添加完美反射白平衡算法,配合多尺度快速引导滤波器,提高疵点区域的对比度;最后,通过投影展平将投影面积转化为实际曲面面积。实验结果表明,文中算法计算所得面积与人工测量面积的误差范围在3.8%~8.7%,最大误差面积为0.07 cm^(2),满足次下茧分级的精度要求。展开更多
文摘In current critical area models, it is generally assumed the defect outlines are circular and the conductors to be rectangle or the merger of rectangles. However, real defects and conductors associated with optimal layout design exhibit a great variety of shapes. Based on mathematical morphology, a new critical area model is presented, which can be used to estimate the critical area of short circuit, open circuit and pinhole. Based on the new model, the efficient validity check algorithms are explored to extract critical areas of short circuit, open circuit and pinhole from layouts. The results of experiment on an approximate layout of 4 × 4 shifts register show that the new model predicts the critical areas accurately. These results suggest that the proposed model and algorithm could provide new approaches for yield prediction.
文摘After analyzing 15 clinical case, 2 of which is especially representative, about perforating injury at the areaintegrates thoracic and abdominal cavities in our hospital from Jan. 1988 to Aug. 2001, the writers have summarized some therapyon it. First, to avoid delaying surgery operation , those who are injured at that area seriously should be treated with surgeryoperations immediately without X ray and supersonic checks. Second, the positive check results of suspect patients should behelpful for diagnosis, however the negative ones also could not be excluded of the diagnosis clues. The writers think that theconcomitant observation results with the development of illness are most significant. Third, the emphasis of treatments for thoseinjuries should be paid on abdomen. Explore the abdomen is necessary for the situations that abdominal substantial organs bleedand vacuum organs break, thoracic close drainage is sufficient for treating most thoracic trauma cases. It has been improved to beconvenient to check the thoracic cavities by cutting off the diaphragma temporarily if necessary. Fourth, as it was reported that asmany as 97 per cent of patients will have visceral injury dues to abdominal gunshot wound, all gunshot wounds be done with anexploratory laparotomy without hesitation. Fifth, resuscitating of patients as soon as possible is the key to decrease the mortalityand complications. Sixth, acute pancreas injury should be treated as acute pancreatitis.
文摘A wire rope defects detection method based on permanent magnet excitation is proposed.A detection system,mainly composed of permanent magnet excitation,distance detection,multi-sensor magnetic flux leakage signal acquisition and data analysis device,is set up.According to the different characteristics of the multi-sensor magnetic flux leakage signal,the localized fault(LF)and loss of metallic cross-sectional area(LMA)signal is separated,and then the two defects can be detected.The experiments show that the method can effectively detect the two defects when they appear simultaneously on the wire rope.
文摘在蚕茧分级过程中,常以疵点面积作为评价指标。为计算存在颜色缺陷的蚕茧的表面疵点面积,文中提出了一种融合色彩增强与投影展平的蚕茧疵点面积计算方法。首先,对亮度增强后的原始图像V通道进行阈值分割及矩形拟合,获取图像ROI(region of interest)区域;然后,在带颜色恢复的多尺度Retinex(multi-scale Retinex with chromaticity preservation,MSRCP)算法中添加完美反射白平衡算法,配合多尺度快速引导滤波器,提高疵点区域的对比度;最后,通过投影展平将投影面积转化为实际曲面面积。实验结果表明,文中算法计算所得面积与人工测量面积的误差范围在3.8%~8.7%,最大误差面积为0.07 cm^(2),满足次下茧分级的精度要求。
