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Articles 1 - 20 of 20
Full-Text Articles in Physical Sciences and Mathematics
Comment On Faa Rule Revision - Transport Category Aircraft, Paul F. Eschenfelder, Valter Battistoni
Comment On Faa Rule Revision - Transport Category Aircraft, Paul F. Eschenfelder, Valter Battistoni
Paul F. Eschenfelder
No abstract provided.
Burglary Crime Analysis Using Logistic Regression, Daniel Antolos, Dahai Liu, Andrei Ludu, Dennis Vincenzi
Burglary Crime Analysis Using Logistic Regression, Daniel Antolos, Dahai Liu, Andrei Ludu, Dennis Vincenzi
Andrei Ludu
This study used a logistic regression model to investigate the relationship between several predicting factors and burglary occurrence probability with regard to the epicenter. These factors include day of the week, time of the day, repeated victimization, connectors and barriers. Data was collected from a local police report on 2010 burglary incidents. Results showed the model has various degrees of significance in terms of predicting the occurrence within difference ranges from the epicenter. Follow-up refined multiple comparisons of different sizes were observed to further discover the pattern of prediction strength of these factors. Results are discussed and further research directions …
New Peril + Old Promises = Bad Results, Paul Eschenfelder
New Peril + Old Promises = Bad Results, Paul Eschenfelder
Paul F. Eschenfelder
No abstract provided.
A Non-Autonomous Second Order Boundary Value Problem On The Half-Line, Gregory S. Spradlin
A Non-Autonomous Second Order Boundary Value Problem On The Half-Line, Gregory S. Spradlin
Greg S. Spradlin Ph.D.
By variational arguments, the existence of a solution to a nonautonomous second-order boundary problem on the half-line is proven. The corresponding autonomous problem has no solution, revealing significant differences between the autonomous and the non-autonomous case.
Was A Long-Lived, High Velocity Gas Jet Produced By The Comet Tempel 1 Deep Impact Event: Evidence From High Spectral Resolution [Oi] 630 Nm Interference Spectra, J. B. Corliss, F. L. Roesler, E. J. Mierkiewicz, R. J. Oliversen, W. M. Harris
Was A Long-Lived, High Velocity Gas Jet Produced By The Comet Tempel 1 Deep Impact Event: Evidence From High Spectral Resolution [Oi] 630 Nm Interference Spectra, J. B. Corliss, F. L. Roesler, E. J. Mierkiewicz, R. J. Oliversen, W. M. Harris
Edwin J. Mierkiewicz
Results from high impact spectral resolution observations of comet P/Tempel 1.
Scattered Homoclinics To A Class Of Time-Recurrent Hamiltonian Systems, Gregory S. Spradlin
Scattered Homoclinics To A Class Of Time-Recurrent Hamiltonian Systems, Gregory S. Spradlin
Greg S. Spradlin Ph.D.
A second-order Hamiltonian system with time recurrence is studied. The recurrence condition is weaker than almost periodicity. The existence is proven of an infinite family of solutions homoclinic to zero whose support is spread out over the real line.
An Elliptic Equation With No Monotonicity Condition On The Nonlinearity, Gregory S. Spradlin
An Elliptic Equation With No Monotonicity Condition On The Nonlinearity, Gregory S. Spradlin
Greg S. Spradlin Ph.D.
An elliptic PDE is studied which is a perturbation of an autonomous equation. The existence of a nontrivial solution is proven via variational methods. The domain of the equation is unbounded, which imposes a lack of compactness on the variational problem. In addition, a popular monotonicity condition on the nonlinearity is not assumed. In an earlier paper with this assumption, a solution was obtained using a simple application of topological (Brouwer) degree. Here, a more subtle degree theory argument must be used.
Nonlinear Equations And Wavelets, Andrei Ludu
Laplace Transform Of Spherical Bessel Functions, Andrei Ludu
Laplace Transform Of Spherical Bessel Functions, Andrei Ludu
Andrei Ludu
No abstract provided.
Interfering Solutions Of A Nonhomogeneous Hamiltonian System, Gregory S. Spradlin
Interfering Solutions Of A Nonhomogeneous Hamiltonian System, Gregory S. Spradlin
Greg S. Spradlin Ph.D.
A Hamiltonian system is studied which has a term approaching a constant at an exponential rate at infinity. A minimax argument is used to show that the equation has a positive homoclinic solution. The proof employs the interaction between translated solutions of the corresponding homogeneous equation. What distinguishes this result from its few predecessors is that the equation has a nonhomogeneous nonlinearity.
An Elliptic Partial Differential Equation With A Symmetrical Almost Periodic Term, Gregory S. Spradlin
An Elliptic Partial Differential Equation With A Symmetrical Almost Periodic Term, Gregory S. Spradlin
Greg S. Spradlin Ph.D.
No abstract provided.
A Singularly Perturbed Elliptic Partial Differential Equation With An Almost Periodic Term, Gregory S. Spradlin
A Singularly Perturbed Elliptic Partial Differential Equation With An Almost Periodic Term, Gregory S. Spradlin
Greg S. Spradlin Ph.D.
No abstract provided.
Nonlinear Phenomena In Nuclei: The Antisoliton Model For Fission, Andrei Ludu
Nonlinear Phenomena In Nuclei: The Antisoliton Model For Fission, Andrei Ludu
Andrei Ludu
No abstract provided.
Patterns On Liquid Surfaces: Cnoidal Waves, Compactons And Scaling, Andrei Ludu
Patterns On Liquid Surfaces: Cnoidal Waves, Compactons And Scaling, Andrei Ludu
Andrei Ludu
Localized patterns and nonlinear oscillation formation on the bounded free surface of an ideal incompressible liquid are analytically investigated. Cnoidal modes, solitons and compactons, as traveling non-axially symmetric shapes are discussed. A finite-difference differential generalized Korteweg-de Vries equation is shown to describe the three-dimensional motion of the fluid surface and the limit of long and shallow channels one re-obtains the well-known KdV equation. A tentative expansion formula for the representation of the general solution of a nonlinear equation, for given initial condition is introduced on a graphical-algebraic basis. The model is useful in multilayer fluid dynamics, cluster formation, and nuclear …
Wavelets And Quantum Algebras, Andrei Ludu
Nonlinear Deformed Su(2) Algebras Involving Two Deforming Function, Andrei Ludu
Nonlinear Deformed Su(2) Algebras Involving Two Deforming Function, Andrei Ludu
Andrei Ludu
No abstract provided.
Alpha+28si Cluster Structure As Solitons On The Nuclear Surface, Andrei Ludu
Alpha+28si Cluster Structure As Solitons On The Nuclear Surface, Andrei Ludu
Andrei Ludu
No abstract provided.
Quasimolecular Resonances In Alpha+20ne Systems, Andrei Ludu
Quasimolecular Resonances In Alpha+20ne Systems, Andrei Ludu
Andrei Ludu
No abstract provided.
Cluster As Solitons On The Nuclear Surface, Andrei Ludu
Cluster As Solitons On The Nuclear Surface, Andrei Ludu
Andrei Ludu
No abstract provided.
On The Quadratic Form N12 +N22 +N32 - N42 In Z4, Andrei Ludu
On The Quadratic Form N12 +N22 +N32 - N42 In Z4, Andrei Ludu
Andrei Ludu
No abstract provided.