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Full-Text Articles in Physical Sciences and Mathematics
Temporal Measurement And Analysis Of High-Resolution Spectral Signatures Of Plants And Relationships To Biophysical Characteristics, Charles R. Bostater, Jan Rebbman, Carlton Hall, Mark Provancha, David Vieglais
Temporal Measurement And Analysis Of High-Resolution Spectral Signatures Of Plants And Relationships To Biophysical Characteristics, Charles R. Bostater, Jan Rebbman, Carlton Hall, Mark Provancha, David Vieglais
Ocean Engineering and Marine Sciences Faculty Publications
Measurements of temporal reflectance signatures as a function of growing season for sand live oak (Quercus geminata), myrtle oak (Q. myrtifolia) and saw palmetto (Serenoa repens) were collected during a two year study period. Canopy level spectral reflectance signatures, as a function of 252 channels between 368 and 1 1 15 nm, were collected using near nadir viewing geometry and a consistent sun illumination angle. Leaf level reflectance measurements were made in the laboratory using a halogen light source and an environmental optics chamber with a barium sulfate reflectance coating. Spectral measurements were related to several biophysical measurements utilizing optimal …
Asymptotic Optimality Of Sequential Designs For Estimation, Kamel Rekab
Asymptotic Optimality Of Sequential Designs For Estimation, Kamel Rekab
Mathematics and System Engineering Faculty Publications
This paper is concerned with the problem of allocating a fixed number of trials between K independent populations from the exponential family, in order to estimate a linear combination of the means with squared error loss. Introducing independent conjugate priors, a batch sequential procedure is proposed and compared with the optimal. © 1995, Hindawi Publishing Corporation. All rights reserved.
Hubble Space Telescope Observations Of Cool White Dwarf Stars: Detection Of New Species Of Heavy Elements, Harry Shipman, Terry D. Oswalt
Hubble Space Telescope Observations Of Cool White Dwarf Stars: Detection Of New Species Of Heavy Elements, Harry Shipman, Terry D. Oswalt
Aerospace, Physics, and Space Science Faculty Publications
Observations of cool white dwarf stars with the Hubble Space Telescope has uncovered a number of spectral features from previously unobserved species. In this paper we present the data on four cool white dwarfs. We present line identifications, equivalent width measurements, and brief summaries of the significance of our findings. The four stars observed are GD 40 (DBZ3), G 74-7 (DAZ), L 745-46A (DZ), and LDS 749 B (DBA). Many additional species of heavy elements were detected in GD 40 and G 74-7. In L 745-46A,while the detections are limited to Fe I, Fe II, and Mg II, the quality …
A Sturm Separation Theorem For A Linear 2nth Order Self-Adjoint Differential Equation, Charles T. Fulton, Wu Limin, Steven Pruess
A Sturm Separation Theorem For A Linear 2nth Order Self-Adjoint Differential Equation, Charles T. Fulton, Wu Limin, Steven Pruess
Mathematics and System Engineering Faculty Publications
For the 2nth order equation, (−1)nv(2n)+qv=0, with q continuous, we obtain a Sturm Separation theorem, involving n+1 solutions of the equation, which is somewhat analogous to the classical result that the zeros of two linearly independent solutions of the second order equation separate each other.
Exp For Windows, Version 3.0 A Software Review, Donn E. Miller-Harnish
Exp For Windows, Version 3.0 A Software Review, Donn E. Miller-Harnish
Mathematics and System Engineering Faculty Publications
No abstract provided.
Optimality Conditions For Systems Driven By Nonlinear Evolution Equations, Nikolaos S. Papageorgiou
Optimality Conditions For Systems Driven By Nonlinear Evolution Equations, Nikolaos S. Papageorgiou
Mathematics and System Engineering Faculty Publications
Using the Dubovitskii-Milyutin theory we derive necessary and sufficient conditions for optimality for a class of Lagrange optimal control problems monitored by a nonlinear evolution equation and involving initial and/or terminal constraints. An example of a parabolic control system is also included.
Stability Of Conditionally Invariant Sets And Controlled Uncertain Dynamic Systems On Time Scales, V. Lakshmikantham
Stability Of Conditionally Invariant Sets And Controlled Uncertain Dynamic Systems On Time Scales, V. Lakshmikantham
Mathematics and System Engineering Faculty Publications
A basic feedback control problem is that of obtaining some desired stability property from a system which contains uncertainties due to unknown inputs into the system. Despite such imperfect knowledge in the selected mathematical model, we often seek to devise controllers that will steer the system in a certain required fashion. Various classes of controllers whose design is based on the method of Lyapunov are known for both discrete [4], [10], [15], and continuous [3–9], [11] models described by difference and differential equations, respectively. Recently, a theory for what is known as dynamic systems on time scales has been built …
Partial Least-Squares: Theoretical Issues And Engineering Applications In Signal Processing, Fredric M. Ham, Ivica Kostanic
Partial Least-Squares: Theoretical Issues And Engineering Applications In Signal Processing, Fredric M. Ham, Ivica Kostanic
Mathematics and System Engineering Faculty Publications
In this paper we present partial least-squares (PLS), which is a statistical modeling method used extensively in analytical chemistry for quantitatively analyzing spectroscopic data. Comparisons are made between classical least-squares (CLS) and PLS to show how PLS can be used in certain engineering signal processing applications. Moreover, it is shown that in certain situations when there exists a linear relationship between the independent and dependent variables, PLS can yield better predictive performance than CLS when it is not desirable to use all of the empirical data to develop a calibration model used for prediction. Specifically, because PLS is a factor …
Bulk Input Queues With Quorum And Multiple Vacations, Jay Yellen, Jewgeni H. Dshalalow
Bulk Input Queues With Quorum And Multiple Vacations, Jay Yellen, Jewgeni H. Dshalalow
Mathematics and System Engineering Faculty Publications
The authors study a single-server queueing system with bulk arrivals and batch service in accordance to the general quorum discipline: a batch taken for service is not less than r and not greater than R(≥r). The server takes vacations each time the queue level falls below r(≥1) in accordance with the multiple vacation discipline. The input to the system is assumed to be a compound Poisson process. The analysis of the system is based on the theory of first excess processes developed by the first author. A preliminary analysis of such processes enabled the authors to obtain all major characteristics …
Extension Of The Method Of Quasilinearization For Stochastic Initial Value Problems, Naseer Shahzad, Farzana A. Mcrae
Extension Of The Method Of Quasilinearization For Stochastic Initial Value Problems, Naseer Shahzad, Farzana A. Mcrae
Mathematics and System Engineering Faculty Publications
In this paper we extend the method of quasilinearization to stochastic initial value problems. Further we prove that the iterates converge uniformly almost surely to the unique solution and the convergence is quadratic.