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- S S Margulies, G T Lei, G A Farkas, J R Rodarte
- Journal of applied physiology
- 1994

Stress in the diaphragm, transdiaphragmatic pressure, and diaphragm shape are interrelated by a balance of forces. Using precise in vivo measurements of diaphragm shape and transdiaphragmatic pressure distribution in combination with finite-element analysis (ANSYS), we determined the direction and magnitude of stress in the passive diaphragm at relaxation… (More)

- Guang-Tsai Lei
- IEEE Transactions on Microwave Theory and…
- 2011

In this paper, we examine the Green's function and <i>Z</i>-matrix models commonly used in calculations for microwave planar circuits. We prove, for the first time, the pointwise convergence of the Green's function and the interchangeability of the integration and infinite summation used in deriving the <i>Z</i>-matrix model. We also show the validity of… (More)

- Guang-Tsai Lei
- SIAM J. Math. Analysis
- 2010

- G. T. Lei
- 2008

In this paper we derive boundary integral identities for the bi-Laplacian eigenvalue problems under Dirichlet, Navier and simply-supported boundary conditions. By using these integral identities, we first obtain uniqueness criteria for the solutions of the bi-Laplacian eigenvalue problems, and then prove that each eigenvalue of the problem with… (More)

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