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Werner X Schneider - One of the best experts on this subject based on the ideXlab platform.

  • different effects of eyelid blinks and target Blanking on saccadic suppression of displacement
    Attention Perception & Psychophysics, 2004
    Co-Authors: Heiner Deubel, Bruce Bridgeman, Werner X Schneider
    Abstract:

    Displacements of visual stimuli during saccadic eye movements are often not noticed. We have demonstrated that saccadic suppression of image displacement can be eliminated by Blanking the stimulus for a short period during and after the saccade (Deubel, Schneider, & Bridgeman, 1996). Here we report an experiment in which target visibility was interrupted after the saccade, either by distal target Blanking or by voluntary eyeblink. The data show that the effect of blinking is different from Blanking; interruption of vision due to a blink did not enable subjects to detect target displacements any better than they had done in the no-blank condition. The results provide evidence for an extraretinal signal that distinguishes between endogenous and exogenous sources of temporary object disappearance after the saccade.

  • postsaccadic target Blanking prevents saccadic suppression of image displacement
    Vision Research, 1996
    Co-Authors: Heiner Deubel, Werner X Schneider, Bruce Bridgeman
    Abstract:

    Abstract Displacement of a visual target during a saccadic eye movement is normally detected only at a high threshold, implying that high-quality information about target position is not stored in the nervous system across the saccade. We show that Blanking the target for 50–300 msec after a saccade restores sensitivity to the displacement. With Blanking, subjects reliably detect displacements as small as 0.33 deg across 6 deg eye movements, with correspondingly steep psychophysical functions. Performance with Blanking in a fixation control is inferior, evidence for a saccadic enhancement of sensitivity to image displacement. If Blanking is delayed so that the target is visible immediately after the saccade in its displaced position, performance declines to non-Blanking levels. Blanking the target before the saccade, and restoring it during the saccade, yields a similar but weaker effect. We interpret these results with a model in which the visual system searches for the postsaccadic goal target within a restricted spatiotemporal window. If it is not found, the assumption of stationarity of the world is broken and the system makes use of other information such as extraretinal signals for calibrating location.

Jong Deok Kim - One of the best experts on this subject based on the ideXlab platform.

  • an experimental study of v ring position on the die roll height in the fine Blanking of special part with corner shapes
    Applied Mechanics and Materials, 2012
    Co-Authors: Jong Deok Kim, Young Moo Heo
    Abstract:

    In this paper, the relation between die roll height and V-ring position of a fine Blanking tool was studied by experimenting on a special part with various corner shapes. Three guide plate inserts with different V-ring positions and a die insert with constant die chamfer were machined, and a fine Blanking tool was manufactured for the fine Blanking experiments. Three experiments were conducted on a 650-ton fine Blanking press. Each die roll height was measured and analyzed. We found the tendency of the die roll heights on the corner shapes of fine blanked parts to increase with increasing the distance between the V-ring position and the contour of the special part, and to decrease with increasing corner radius and angle. These results can be used to minimize the die roll height of fine Blanking parts with corner shapes when designing the V-ring of a fine Blanking tool.

  • an experimental study on the effect of v ring position and die chamfer shape on the die roll height in fine Blanking tool
    The Korea Academia-Industrial cooperation Society, 2012
    Co-Authors: Jong Deok Kim
    Abstract:

    It is very important to minimize the die roll height of gear, in order to maximize the shear cutting surface(tooth surface) of fine Blanking. In this paper, the fine Blanking tool sets were manufactured in order to study the die roll height according to V-ring position and die chamfer shape. They were constituted of the various die inserts and guide plate inserts with different die chamfer shape and different V-ring distance. The fine Blanking experiment was conducted with the fine Blanking tool sets and the die roll height of the gear samples was measured. It should be noted that die roll height on the fine blanked gear increased with increasing the V-ring distance and die chamfer angle.

  • a study on the effect of v ring position on the die roll height in fine Blanking for special automobile seat recliner gear
    Advanced Materials Research, 2011
    Co-Authors: Jong Deok Kim, Young Moo Heo, H K Kim, Sung Ho Chang
    Abstract:

    In this paper, the relation between die roll height and V-ring position was studied by fine Blanking experiments for imaginary special automobile seat recliner gear. The three die inserts and three guide plate inserts with different V-ring positions were machined, and fine Blanking tool was manufactured. Using the fine Blanking tool, three experiments were conducted on the 650 ton fine Blanking press. Each die roll height was measured, analyzed and we found the tendency of die roll heights on imaginary special gear to increase with increasing the distance between V-ring position and contour of gear. This result can be used to minimize the die roll height of fine Blanking gear parts when designing V-ring of fine Blanking tool.

  • a study on die roll height of special automobile seat recliner gear according to die chamfer shape in fine Blanking tool
    Applied Mechanics and Materials, 2011
    Co-Authors: Jong Deok Kim, Young Moo Heo, H K Kim, Sung Ho Chang
    Abstract:

    In this paper, the effect of die chamfer shape on the die roll height was studied by fine Blanking experiments for imaginary special automobile seat recliner gear. The three die inserts with different die chamfer shapes were machined, and fine Blanking tool was manufactured. Using the fine Blanking tool, three experiments were conducted on the 650 ton fine Blanking press. Each die roll height was measured, analyzed and we found the tendency of die roll heights on imaginary special automobile seat recliner gear to increase with increasing die chamfer angle, with the horizontal distance of die chamfer being constant. This result can be used to minimize the die roll height of fine Blanking gear parts when designing die chamfer of fine Blanking tool.

  • a study on the relation between die roll height and die chamfer shape in fine Blanking for special gear
    Advanced Materials Research, 2011
    Co-Authors: Jong Deok Kim, Young Moo Heo, H K Kim, Sung Ho Chang
    Abstract:

    In this paper, the relation between die roll height and die chamfer shape was studied by fine Blanking experiments for imaginary special gear. The three die inserts with different die chamfer shapes were machined, and fine Blanking tool was manufactured. Using the fine Blanking tool, three experiments were conducted on the 650 ton fine Blanking press. Each die roll height was measured, analyzed and we found the tendency of die roll heights on imaginary special gear to increase with increasing die chamfer angle, with the horizontal distance of die chamfer being constant. This result can be used to minimize the die roll height of fine Blanking gear parts when designing die chamfer of fine Blanking tool.

Sung Ho Chang - One of the best experts on this subject based on the ideXlab platform.

  • a study on the effect of v ring position on the die roll height in fine Blanking for special automobile seat recliner gear
    Advanced Materials Research, 2011
    Co-Authors: Jong Deok Kim, Young Moo Heo, H K Kim, Sung Ho Chang
    Abstract:

    In this paper, the relation between die roll height and V-ring position was studied by fine Blanking experiments for imaginary special automobile seat recliner gear. The three die inserts and three guide plate inserts with different V-ring positions were machined, and fine Blanking tool was manufactured. Using the fine Blanking tool, three experiments were conducted on the 650 ton fine Blanking press. Each die roll height was measured, analyzed and we found the tendency of die roll heights on imaginary special gear to increase with increasing the distance between V-ring position and contour of gear. This result can be used to minimize the die roll height of fine Blanking gear parts when designing V-ring of fine Blanking tool.

  • a study on die roll height of special automobile seat recliner gear according to die chamfer shape in fine Blanking tool
    Applied Mechanics and Materials, 2011
    Co-Authors: Jong Deok Kim, Young Moo Heo, H K Kim, Sung Ho Chang
    Abstract:

    In this paper, the effect of die chamfer shape on the die roll height was studied by fine Blanking experiments for imaginary special automobile seat recliner gear. The three die inserts with different die chamfer shapes were machined, and fine Blanking tool was manufactured. Using the fine Blanking tool, three experiments were conducted on the 650 ton fine Blanking press. Each die roll height was measured, analyzed and we found the tendency of die roll heights on imaginary special automobile seat recliner gear to increase with increasing die chamfer angle, with the horizontal distance of die chamfer being constant. This result can be used to minimize the die roll height of fine Blanking gear parts when designing die chamfer of fine Blanking tool.

  • a study on the relation between die roll height and die chamfer shape in fine Blanking for special gear
    Advanced Materials Research, 2011
    Co-Authors: Jong Deok Kim, Young Moo Heo, H K Kim, Sung Ho Chang
    Abstract:

    In this paper, the relation between die roll height and die chamfer shape was studied by fine Blanking experiments for imaginary special gear. The three die inserts with different die chamfer shapes were machined, and fine Blanking tool was manufactured. Using the fine Blanking tool, three experiments were conducted on the 650 ton fine Blanking press. Each die roll height was measured, analyzed and we found the tendency of die roll heights on imaginary special gear to increase with increasing die chamfer angle, with the horizontal distance of die chamfer being constant. This result can be used to minimize the die roll height of fine Blanking gear parts when designing die chamfer of fine Blanking tool.

Heiner Deubel - One of the best experts on this subject based on the ideXlab platform.

  • different effects of eyelid blinks and target Blanking on saccadic suppression of displacement
    Attention Perception & Psychophysics, 2004
    Co-Authors: Heiner Deubel, Bruce Bridgeman, Werner X Schneider
    Abstract:

    Displacements of visual stimuli during saccadic eye movements are often not noticed. We have demonstrated that saccadic suppression of image displacement can be eliminated by Blanking the stimulus for a short period during and after the saccade (Deubel, Schneider, & Bridgeman, 1996). Here we report an experiment in which target visibility was interrupted after the saccade, either by distal target Blanking or by voluntary eyeblink. The data show that the effect of blinking is different from Blanking; interruption of vision due to a blink did not enable subjects to detect target displacements any better than they had done in the no-blank condition. The results provide evidence for an extraretinal signal that distinguishes between endogenous and exogenous sources of temporary object disappearance after the saccade.

  • postsaccadic target Blanking prevents saccadic suppression of image displacement
    Vision Research, 1996
    Co-Authors: Heiner Deubel, Werner X Schneider, Bruce Bridgeman
    Abstract:

    Abstract Displacement of a visual target during a saccadic eye movement is normally detected only at a high threshold, implying that high-quality information about target position is not stored in the nervous system across the saccade. We show that Blanking the target for 50–300 msec after a saccade restores sensitivity to the displacement. With Blanking, subjects reliably detect displacements as small as 0.33 deg across 6 deg eye movements, with correspondingly steep psychophysical functions. Performance with Blanking in a fixation control is inferior, evidence for a saccadic enhancement of sensitivity to image displacement. If Blanking is delayed so that the target is visible immediately after the saccade in its displaced position, performance declines to non-Blanking levels. Blanking the target before the saccade, and restoring it during the saccade, yields a similar but weaker effect. We interpret these results with a model in which the visual system searches for the postsaccadic goal target within a restricted spatiotemporal window. If it is not found, the assumption of stationarity of the world is broken and the system makes use of other information such as extraretinal signals for calibrating location.

Young Moo Heo - One of the best experts on this subject based on the ideXlab platform.

  • an experimental study of v ring position on the die roll height in the fine Blanking of special part with corner shapes
    Applied Mechanics and Materials, 2012
    Co-Authors: Jong Deok Kim, Young Moo Heo
    Abstract:

    In this paper, the relation between die roll height and V-ring position of a fine Blanking tool was studied by experimenting on a special part with various corner shapes. Three guide plate inserts with different V-ring positions and a die insert with constant die chamfer were machined, and a fine Blanking tool was manufactured for the fine Blanking experiments. Three experiments were conducted on a 650-ton fine Blanking press. Each die roll height was measured and analyzed. We found the tendency of the die roll heights on the corner shapes of fine blanked parts to increase with increasing the distance between the V-ring position and the contour of the special part, and to decrease with increasing corner radius and angle. These results can be used to minimize the die roll height of fine Blanking parts with corner shapes when designing the V-ring of a fine Blanking tool.

  • a study on the effect of v ring position on the die roll height in fine Blanking for special automobile seat recliner gear
    Advanced Materials Research, 2011
    Co-Authors: Jong Deok Kim, Young Moo Heo, H K Kim, Sung Ho Chang
    Abstract:

    In this paper, the relation between die roll height and V-ring position was studied by fine Blanking experiments for imaginary special automobile seat recliner gear. The three die inserts and three guide plate inserts with different V-ring positions were machined, and fine Blanking tool was manufactured. Using the fine Blanking tool, three experiments were conducted on the 650 ton fine Blanking press. Each die roll height was measured, analyzed and we found the tendency of die roll heights on imaginary special gear to increase with increasing the distance between V-ring position and contour of gear. This result can be used to minimize the die roll height of fine Blanking gear parts when designing V-ring of fine Blanking tool.

  • a study on die roll height of special automobile seat recliner gear according to die chamfer shape in fine Blanking tool
    Applied Mechanics and Materials, 2011
    Co-Authors: Jong Deok Kim, Young Moo Heo, H K Kim, Sung Ho Chang
    Abstract:

    In this paper, the effect of die chamfer shape on the die roll height was studied by fine Blanking experiments for imaginary special automobile seat recliner gear. The three die inserts with different die chamfer shapes were machined, and fine Blanking tool was manufactured. Using the fine Blanking tool, three experiments were conducted on the 650 ton fine Blanking press. Each die roll height was measured, analyzed and we found the tendency of die roll heights on imaginary special automobile seat recliner gear to increase with increasing die chamfer angle, with the horizontal distance of die chamfer being constant. This result can be used to minimize the die roll height of fine Blanking gear parts when designing die chamfer of fine Blanking tool.

  • a study on the relation between die roll height and die chamfer shape in fine Blanking for special gear
    Advanced Materials Research, 2011
    Co-Authors: Jong Deok Kim, Young Moo Heo, H K Kim, Sung Ho Chang
    Abstract:

    In this paper, the relation between die roll height and die chamfer shape was studied by fine Blanking experiments for imaginary special gear. The three die inserts with different die chamfer shapes were machined, and fine Blanking tool was manufactured. Using the fine Blanking tool, three experiments were conducted on the 650 ton fine Blanking press. Each die roll height was measured, analyzed and we found the tendency of die roll heights on imaginary special gear to increase with increasing die chamfer angle, with the horizontal distance of die chamfer being constant. This result can be used to minimize the die roll height of fine Blanking gear parts when designing die chamfer of fine Blanking tool.