Results 231 to 240 of about 1,993,192 (267)
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Electromagnetic analysis in devices with sliding contacts
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2001In this paper an integral formulation for the analysis of systems with moving conductors has been extended to take into account the presence of sliding contacts. The proposed formulation results in the equilibrium equations of an equivalent electric network whose elements vary with the position of the conductors.
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1991
Various techniques have been developed to study contact analysis. The main three techniques are as follows: i) Experimental Approach ii) Analytical Approach iii) Numerical Approach The experimental and analytical approaches have been developed at the early stages of contact analysis.
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Various techniques have been developed to study contact analysis. The main three techniques are as follows: i) Experimental Approach ii) Analytical Approach iii) Numerical Approach The experimental and analytical approaches have been developed at the early stages of contact analysis.
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Computerized analysis of concomitant contact allergens
Contact Dermatitis, 1991A statistical study was conducted on 3697 patch‐tested patterns in order to find any cross‐reacting or concomitant allergens, 44 correlations were found 3 were well‐known cross‐reacting substances (e.g., benzocaine and p‐phenylenediamine). 7 were unlikely, probably random, findings and the remaining 27 were considered to be either new Cross‐reacting ...
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Contact Mechanics Analysis of Two Rough Surfaces in Contact
Advanced Materials Research, 2010In this paper, the calculation formulas of the asperity’s deformation related with the surface contact pressure are deduced by using the simplified contact model. Firstly, we assume that the rough surface is composed of a set of cones as asperities, and the cones are arranged in different ways along two directions. Secondly, according to the mechanical
Zhi Qian Xu +2 more
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A retrospective analysis of contact allergy to lanolin
British Journal of Dermatology, 2001Lanolin is often stated to be an important sensitizer but some of the available literature is based on the analysis of high-risk patients.To analyse the frequency of contact allergy to lanolin (wool alcohols) in a central London teaching hospital patch-test population.Review of 24,449 patients recorded on our database during 1982--96 who were tested ...
S H, Wakelin +4 more
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Plastic Analysis of Ice Contact Problems
Journal of Applied Mechanics, 1988The plane problem of a rigid stamp on a truncated wedge of rigid/perfectly plastic material is solved by the method of characteristics for a generalized von Mises yield function. Quadratic dependence of shear strength on mean normal stress is included in the yield function. For the corresponding three-dimensional contact problem upper bounds on contact
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Tear Analysis in Contact Lens Wearers
Eye & Contact Lens: Science & Clinical Practice, 1986Tear analysis in contact lens wearers was compared with tear analysis in aphakics without contact lens wear and normal phakic patients. Subjects were divided into five groups: group 1, aphakic without contact lens; group 2, phakic with daily-wear hard contact lens; group 3, phakic with daily-wear soft contact lens; group 4, phakic with extended-wear ...
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Modal Methods for Contact Analysis and Contact Force Reconstruction
2017Problems of dynamic contact require an extraordinary number of solution iterations with very small time step and are—even in the age of massively parallel computing—a major impediment to efficient computational simulation of dynamics. To address this issue, we consider a modal approach to the contact problem: we consider a displacement basis that ...
Daniel J. Segalman, Brian F. Feeny
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Analysis of the stochastic “unilateral contact” problem
Computers & Structures, 1977Abstract In the present paper the stochastic analysis of structures with “unilateral contact”-boundary conditions is considered. Initially the problem of “unilateral contact” is formulated in a variational inequality form. Then the theorems of minimum potential and complementary energy, which are derived to account for this type of boundary ...
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