Results 31 to 40 of about 2,722 (215)

Mortgage valuation: a quasi-closed-form solution [PDF]

open access: yesQuantitative Finance, 2012
Contingent claims mortgage valuation models tend to assume that the main drivers for the value of these financial assets are the risks of prepayment and default.
Viegas, Cristina, Azevedo Pereira, José
openaire   +3 more sources

Polyaxial strength criterion and closed-form solution for squeezing rock conditions

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2020
In this paper, a nonlinear strength criterion is proposed using the average of intermediate (σ2) and minor (σ3) principal stresses in place of σ3 in Ramamurthy (1994)'s strength criterion.
Rupesh Kumar Verma, Sarvesh Chandra
doaj   +1 more source

A New Single-Logarithmic Approximation of Carson’s Ground-Return Impedances—Part 1

open access: yesIEEE Access, 2021
Distributed energy resources with unbalanced phases increase the power imbalance in a grid, and compensating for the imbalance requires accurate knowledge of the impedance of the transmission and distribution lines.
Insu Kim
doaj   +1 more source

A CLOSED-FORM SOLUTION FOR THE HEALTH CAPITAL MODEL [PDF]

open access: yesJournal of Demographic Economics, 2014
Abstract:This paper provides a closed-form solution for the health capital model of health demand. The results are exploited in order to prove analytically the comparative dynamics of the model. Results are derived for the so-called pure investment model, the pure consumption model and a combination of both types of models.
openaire   +3 more sources

Self-Collaborative Unsupervised Hashing for Large-Scale Image Retrieval

open access: yesIEEE Access, 2022
Learning based hashing approaches have achieved considerable success in large-scale image retrieval due to the query effectiveness and efficiency. However, most studies highly rely on supervised knowledge like data labels, thus might fail in unsupervised
Hongmin Zhao, Zhigang Luo
doaj   +1 more source

Closed-form shock solutions [PDF]

open access: yesJournal of Fluid Mechanics, 2014
AbstractIt is shown here that a subset of the implicit analytical shock solutions discovered by Becker and by Johnson can be inverted, yielding several exact closed-form solutions of the one-dimensional compressible Navier–Stokes equations for an ideal gas. For a constant dynamic viscosity and thermal conductivity, and at particular values of the shock
openaire   +2 more sources

Similarity Measure Learning in Closed-Form Solution for Image Classification

open access: yesThe Scientific World Journal, 2014
Adopting a measure is essential in many multimedia applications. Recently, distance learning is becoming an active research problem. In fact, the distance is the natural measure for dissimilarity. Generally, a pairwise relationship between two objects in
Jing Chen   +5 more
doaj   +1 more source

A closed form solution for ac electo-kinetic-driven flow in a microchannel

open access: yesJournal of Thermal Engineering, 2015
The electro-osmotic fully-developed flow in a circular microchannel was studied under an alternative electric field. An analytical approach based on the linearized poisson-Boltzmann equation was selected to obtain an exact solution of the electrical ...
Balaram Kundu
doaj   +1 more source

Precision Closed-form Solution for Out-of-plane Vibration of Rectangular Plates via Trigonometric Shear Deformation Theory [PDF]

open access: yesMechanics of Advanced Composite Structures, 2016
In this study, the new refine trigonometric shear deformation plate theory is used to study the out-of-plane vibration of the rectangular isotropic plates with different boundary conditions.
Korosh Khorshidi, Mohammad Khodadadi
doaj   +1 more source

A Closed Form Solution for Nonlinear Oscillators Frequencies Using Amplitude-Frequency Formulation

open access: yesShock and Vibration, 2012
Many nonlinear systems in industry including oscillators can be simulated as a mass-spring system. In reality, all kinds of oscillators are nonlinear due to the nonlinear nature of springs.
A. Barari   +4 more
doaj   +1 more source

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