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Contact Analysis for Contact Thermoforming of PMMA Sheet
Materials Performance and Characterization, 2020Abstract The ability to produce products with more uniformity in the wall thickness distribution makes contact thermoforming the most suitable optical product processing method. Among all the process parameters, the contact condition significantly affects the structural strength and the optical properties of the product.
Jeet P. Patil +4 more
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The analysis of contact sampling data
Oecologia, 1980Use of the chi-square statistic for investigating interspecific association has been incorrectly applied to the contact sampling method because of an invalid probability argument. The usual method of calculating expected frequencies leads to a large overestimation and hence bias towards negative association.
Piet, de Jong +2 more
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Dynamic Contact Angle Analysis of Silicone Hydrogel Contact Lenses
Journal of Biomaterials Applications, 2010Contact angle measurements are used to infer the clinical wetting characteristics of contact lenses. Such characterization has become more commonplace since the introduction of silicone hydrogel contact lens materials, which have been associated with reduced in vivo wetting due to the inclusion of siloxane-containing components.
Read, Michael; id_orcid 0000-0002-9976-8567 +3 more
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Compositionally Compliant Contact Analysis
2016Contact analysis assesses the evolution of the average value along boreholes of a given variable at increasing distances from the contact between two facies or domains. The concept is long established in the geostatistical literature and software, albeit for studying the behavior of a single variable.
Tolosana-Delgado, R. +2 more
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ANALYSIS OF BIFOCAL CONTACT LENSES
Optometry and Vision Science, 1971ABSTRACT The modulations transfer theory has been applied to a rigorous investigation of the effect on the retinal image of several types of contact lenses designed to help in presbyopia. Among those investigated are the segmented bifocal, the two‐curve bifocal, and pupil restriction.
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Analysis of indeterminate contact forces in robotic grasping and contact tasks
2007 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2007In this paper, we analyze indeterminate contact forces in robotic grasping and contact tasks. Previous studies by Omata and Nagata showed that there is a constraint on static friction forces, which is derived from contact kinematics, in rigid-body power grasps. The set of possible contact forces can be calculated using the constraint. This approach can
Yusuke Maeda +2 more
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Buckled Elastica at Contact: A Perturbation Analysis
SIAM Journal on Applied Mathematics, 1979The postbuckling shape of a slender elastic rod clamped at both ends and subject to an axial compressive force is considered. The critical value \(P_c\) of the magnitude of the axial force is assumed to cause the rod to bend so far out as to come into contact with itself for the case of the first buckling mode.
Berkey, Dennis D., Freedman, Marvin I.
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Citation Analysis of the Contact Lens Field
Optometry and Vision Science, 2012ABSTRACT Purpose. To identify, analyze, and celebrate the most highly cited articles relating to contact lenses and the leading authors, journals, institutions, and countries associated with these publications. Methods.
Efron, Nathan +2 more
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Contact Analysis of Helical Face Gears
Volume 6: 8th International Power Transmission and Gearing Conference, 2000Abstract This paper presents an analytical method developed to design and study the tooth geometry and contact characteristics of helical face gears. The tooth geometry is first defined while simulating the meshing of the face gear with the shaper used to cut it.
Jacquin, C.-Y. +3 more
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