Search Results - "Spence, D. A."

A constant feed and reduced angular acceleration interpolation algorithm for multi-axis machining by Fleisig, R.V., Spence, A.D.

“…Multi-axis tool paths are currently generated as a set of discrete data points consisting of a position vector, representing the tool tip, and an orientation…”
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Kinematic and geometric error compensation of a coordinate measuring machine by Barakat, N.A, Elbestawi, M.A, Spence, A.D

“…In this paper, kinematic modelling of a Coordinate Measuring Machine (CMM) is carried out and the methodology followed in modelling is explained in detail. The…”
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Laser digitizer-based sheet metal strain and surface analysis by Chan, H.-L., Spence, A.D., Sklad, M.P.

“…This paper presents a new approach to sheet metal strain and surface analysis using data collected with a high-accuracy coordinate measuring machine mounted…”
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Techniques for accelerating B-rep based parallel machining simulation by Fleisig, R.V., Spence, A.D.

“…Continued progress in the area of solid modeller based machining process simulation is hindered by the complexity growth that occurs for a large number of…”
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Geometric and quasi-static thermal error compensation for a laser digitizer equipped coordinate measuring machine by Harris, J.O., Spence, A.D.

“…An emerging trend in dimensional inspection of manufactured parts is the use of coordinate measuring machines (CMMs) equipped with non-contact laser digitizers…”
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On the dynamics of ball end milling: modeling of cutting forces and stability analysis by Abrari, F., Elbestawi, M.A., Spence, A.D.

“…This paper presents a dynamic force model and a stability analysis for ball end milling. The concept of the equivalent orthogonal cutting conditions, applied…”
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Integration of Milling Process Simulation with On-Line Monitoring and Control by Saturley, P. V., Spence, A. D.

“…This paper describes the practical integration of solid modelling with milling process simulation, on-line monitoring and supervisory control. Extensions to…”
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In vitro technique in estimation of passive mechanical properties of bovine heart part I. Experimental techniques and data by Ghaemi, Hamid, Behdinan, K, Spence, A D

“…Myocardium generally demonstrates viscoelastic behavior. Since the stress-stain relationships of tissues are pseudo-elastic, their mechanical behavior can be…”
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In vitro technique in estimation of passive mechanical properties of bovine heart part II. Constitutive relation and finite element analysis by Ghaemi, Hamid, Behdinan, K, Spence, A D

“…A pseudo-elastic constitutive equation describing the mechanical properties of bovine myocardium was developed. The myocardium was modeled as a hyperelastic…”
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Adaptive compensation of quasi-static errors for an intrinsic machine by Barakat, N.A., Spence, A.D., Elbestawi, M.A.

“…An adaptive compensation strategy for quasi-static error correction in intrinsic machines is proposed and tested. The proposed methodology consists of…”
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General geometric modelling approach for machining process simulation by El-Mounayri, H., Elbestawi, M. A., Spence, A. D., Bedi, S.

“…Machining process simulation systems can be used to verify NC (numerically controlled) programs as well as to optimise the machining phase of the production…”
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Self-similar solutions for elastohydrodynamic cavity flow by Spence, D. A., Sharp, P.

“…The enlargement of a lens-shaped cavity lying in a plane of cleavage between two elastic half spaces and filling with viscous fluid from a source on the axis…”
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Nursing home length of stay patterns: results from the 1985 National Nursing Home Survey by Spence, D A, Wiener, J M

“…Length of stay (LOS) for elderly nursing home patients is estimated by converting discharges from the 1985 National Nursing Home Survey into an admission…”
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Rotation and deformation of a viscous inclusion in Stokes flow by Spence, D. A., Wilmott, P.

“…In a paper by Spence et al. (Geophys J. (in the press) (1988)) the stretching and distortion of a symmetrical slender inclusion of highly viscous material…”
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The hertz contact problem with finite friction by Spence, D. A.

“…The indentation of an elastic half-space by an axisymmetric punch under a monotonically applied normal force is formulated as a mixed boundary value problem…”
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Integrated solid modeller based solutions for machining by Spence, A.D., Abrari, F., Elbestawi, M.A.

“…Most existing machining simulation software is geometric in nature, and ignores the physical aspects of the process. This paper reports research progress…”
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Convective Mixing in the Mantle: The Role of Viscosity Differences by Spence, D. A., Ockendon, J. R., Wilmott, P., Turcotte, D. L., Kellogg, L. H.

“…The fate of the subducted oceanic crust has been a subject of controversy since the hypothesis of plate tectonics was first proposed. There is now considerable…”
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Estimating the extent of Medicaid spend-down in nursing homes by Spence, D A, Wiener, J M

“…Although it is commonly thought that a very high proportion of private-pay nursing home patients become eligible for Medicaid during their stay, few national…”
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A Note on the Eigenfunction Expansion for the Elastic Strip by Spence, D. A.

“…The Papkovitch-Fadle expansion of the biharmonic stress function for a semi-infinite strip |x| ≤ 1, y ≥ 0 with free edges x = ± 1 is obtained as the residue…”
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Diamond Raman laser and Yb fiber amplifier for in vivo multiphoton fluorescence microscopy by Engelmann, Shaun A, Zhou, Annie, Hassan, Ahmed M, Williamson, Michael R, Jarrett, Jeremy W, Perillo, Evan P, Tomar, Alankrit, Spence, David J, Jones, Theresa A, Dunn, Andrew K

“…Here we introduce a fiber amplifier and a diamond Raman laser that output high powers (6.5 W, 1.3 W) at valuable wavelengths (1060 nm, 1250 nm) for two-photon…”
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