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Articles 2401 - 2430 of 2431
Full-Text Articles in Physical Sciences and Mathematics
On A Differential Sequence In Geometry, E. Ortaçgi̇l
On A Differential Sequence In Geometry, E. Ortaçgi̇l
Turkish Journal of Mathematics
We construct an exact differential sequence which indicates certain relations between curvature, local flatness, torsion and simplicity of higher order connections. Our formulas are expressed explicity in terms of the Christoffel symbols of dual \varepsilon-connections.
On Spaces Of Generalized Dirichlet Series, M. Dragilev
On Spaces Of Generalized Dirichlet Series, M. Dragilev
Turkish Journal of Mathematics
It is considered the relationship between spaces L_f(\lambda,\sigma) and subspaces of the space A_1(\bar{A}_1) of analytic functions in the open (closed) unit disc, generated by systems F(\alpha_nz), n\in N, if they constitute a basis in their closure.
Zeros Of Derivatives Of Dirichlet L-Functions, C. Yalçin Yildirim
Zeros Of Derivatives Of Dirichlet L-Functions, C. Yalçin Yildirim
Turkish Journal of Mathematics
In this paper diverse results on the location and number of zeros of derivatives of Dirichlet L-functions are proved.
Secrets Of The Madelung Constant, Stan Wagon
Secrets Of The Madelung Constant, Stan Wagon
Stan Wagon, Retired
No abstract provided.
Polynomials For Radicals, Stan Wagon
System For Synchronizing Execution By A Processing Element Of Threads Within A Process Using A State Indicator Us:5553305, Robert Iannucci, Steven Gregor
System For Synchronizing Execution By A Processing Element Of Threads Within A Process Using A State Indicator Us:5553305, Robert Iannucci, Steven Gregor
Robert A Iannucci
No abstract provided.
Answer To Question #26. Electromagnetic Field Momentum, Br Holstein
Answer To Question #26. Electromagnetic Field Momentum, Br Holstein
Barry R Holstein
No abstract provided.
Lion-Tailed Macaques (Macaca Silenus) In A Disturbed Forest Fragment: Activity Patterns And Time Budget, Shaily Menon, Frank Poirier
Lion-Tailed Macaques (Macaca Silenus) In A Disturbed Forest Fragment: Activity Patterns And Time Budget, Shaily Menon, Frank Poirier
Shaily Menon
We describe the activity patterns and time budget of a feral group of lion-tailed macaques that were confined to a disturbed forest fragment of 65 ha and compare the results with those obtained for groups in protected forests. The degraded nature of the study site was reflected in low tree densities, low specific diversity, gaps in the girth distribution of trees, and frequent disturbance by humans. The study group of 43 subjects was twice as large as lion-tailed macaque groups in protected habitats. They spent the most time ranging (34.0%), followed by foraging (23.7%), feeding (17.9%), resting (16.0%), and other …
Development Of A Shear-Zone Bounded Block Uplift Within The Middle Crust Of The Archean Wyoming Province During Proterozoic Accretion, Laramie Mts., Wy, Phillip Resor, A Snoke, K Chamberlain
Development Of A Shear-Zone Bounded Block Uplift Within The Middle Crust Of The Archean Wyoming Province During Proterozoic Accretion, Laramie Mts., Wy, Phillip Resor, A Snoke, K Chamberlain
Phillip G Resor
No abstract provided.
How Can Software Reliability Engineering (Sre) Help System Engineers And Software Architects?, Robert Yacobellis
How Can Software Reliability Engineering (Sre) Help System Engineers And Software Architects?, Robert Yacobellis
Robert H Yacobellis
No abstract provided.
Enhancing Quality Through An Integrated Approach To Supportability, Caroline Lubert, J. Knezevic
Enhancing Quality Through An Integrated Approach To Supportability, Caroline Lubert, J. Knezevic
Caroline P Lubert
No abstract provided.
The Magic Of Imaginary Factoring, Stan Wagon
The Magic Of Imaginary Factoring, Stan Wagon
Stan Wagon, Retired
No abstract provided.
Understanding Alpha Decay, Br Holstein
Understanding Alpha Decay, Br Holstein
Barry R Holstein
The subject of alpha decay is an important part of a course in modern physics, as it provides a clear experimental manifestation of the phenomenon of barrier penetration. The traditional approach, based on Gamow's complex eigenvalue method, raises a number of questions which can be answered by employing the older but less well-known procedure of summing over scattering states. Additional insights are gained by examination of the alpha decay system via more contemporary path integral based techniques.
Animating Calculus: Mathematica Notebooks For The Laboratory, E. Packel, Stan Wagon
Animating Calculus: Mathematica Notebooks For The Laboratory, E. Packel, Stan Wagon
Stan Wagon, Retired
No abstract provided.
Nonparametric Regression Using Bayesian Variable Selection, Michael Smith, Robert Kohn
Nonparametric Regression Using Bayesian Variable Selection, Michael Smith, Robert Kohn
Michael Stanley Smith
No abstract provided.
Finite Sample Performance Of Robust Bayesian Regression, Michael Smith, Sheather Simon, Kohn Robert
Finite Sample Performance Of Robust Bayesian Regression, Michael Smith, Sheather Simon, Kohn Robert
Michael Stanley Smith
No abstract provided.
Plant Conservation., Nat Quansah
A Variational Inequality For Marketable Pollution Permits, Anna Nagurney, Kathy Dhanda
A Variational Inequality For Marketable Pollution Permits, Anna Nagurney, Kathy Dhanda
Kathy K Dhanda
No abstract provided.
In-Situ Imaging Of Ionic Crystal Dissolution Using An Integrated Electrochemical/Afm Probe, Julie V. Macpherson, Patrick R. Unwin, Andrew C. Hillier, Allen J. Bard
In-Situ Imaging Of Ionic Crystal Dissolution Using An Integrated Electrochemical/Afm Probe, Julie V. Macpherson, Patrick R. Unwin, Andrew C. Hillier, Allen J. Bard
Andrew C. Hillier
The kinetics and mechanism controlling dissolution from the (100) cleavage face of potassium bromide single crystals in acetonitrile solutions have been identified using a novel integrated electrochemical/AFM probe and a scanning electrochemical microscope (SECM). With both techniques, dissolution is induced by perturbing the dynamic dissolution/growth equilibrium at the crystal/solution interface through the electrochemical oxidation of bromide ions. SECM measurements demonstrate that the dissolution reaction is diffusion-limited under the experimental conditions, suggesting that the surface reaction is characterized by a rate constant in excess of 5 cm s-1 (assuming a first-order dissolution process). The topography of the dissolving surface has been …
An Almost Periodic Function Of Several Variables With No Local Minimum, Gregory S. Spradlin
An Almost Periodic Function Of Several Variables With No Local Minimum, Gregory S. Spradlin
Gregory S. Spradlin
Brain Activation Modulated By Sentence Comprehension, Marcel Adam Just, Patricia A. Carpenter, Timothy A. Keller, William F. Eddy, Keith R. Thulborn
Brain Activation Modulated By Sentence Comprehension, Marcel Adam Just, Patricia A. Carpenter, Timothy A. Keller, William F. Eddy, Keith R. Thulborn
Marcel Adam Just
No abstract provided.
Testing For Absolute Purchaing Power Parity, Douglas G. Steigerwald, Collin Crownover, John Pippenger
Testing For Absolute Purchaing Power Parity, Douglas G. Steigerwald, Collin Crownover, John Pippenger
Douglas G. Steigerwald
Purchasing power parity (PPP) is an equilibrium condition equating the nominal exchange rate between two countries with the relative price of an identical bundle of goods in each country. Previous time-series researchers use price indicies to study PPP, so they study relative PPP. We use new data that measures price levels, so we test absolute PPP. Price levels provide a test of absolute PPP because, unlike price indicies, do not contain a base period in which the nominal exchange rate equals the price ratio by construction. We find support for absolute PPP.
Measurement Of Double-Layer Forces At The Electrode/Electrolyte Interface Using The Atomic Force Microscope: Potential And Anion Dependent Interactions, Andrew C. Hillier, Sunghyun Kim, Allen J. Bard
Measurement Of Double-Layer Forces At The Electrode/Electrolyte Interface Using The Atomic Force Microscope: Potential And Anion Dependent Interactions, Andrew C. Hillier, Sunghyun Kim, Allen J. Bard
Andrew C. Hillier
The forces between a silica probe and silica and gold substrates were measured with an atomic force microscope in the presence of a series of alkali-halide electrolyte solutions. The interaction between two silica surfaces was repulsive and could be accurately predicted by Derjaguin-Landau-Verwey-Overbeek theory. The silica surface was negatively charged at a pH of 5.5 and the effective surface potential increased in magnitude with decreasing electrolyte concentration. In contrast, the force between the silica probe and a gold substrate was attractive at open circuit. This interaction was a strong function of the potential applied to the gold and the nature …
Su(1,1) Algebraic Description Of One-Dimensional Potentials Within The R-Matrix Theory, Andrei Ludu
Su(1,1) Algebraic Description Of One-Dimensional Potentials Within The R-Matrix Theory, Andrei Ludu
Andrei Ludu
No abstract provided.
Interface Roughening In A Hydrodynamic Lattice-Gas Model With Surfactant, Francis W. Starr, S. T. Harrington, B. M. Boghosian, H. E. Stanley
Interface Roughening In A Hydrodynamic Lattice-Gas Model With Surfactant, Francis W. Starr, S. T. Harrington, B. M. Boghosian, H. E. Stanley
Francis Starr
No abstract provided.
A Control Basis For Multilegged Walking, Manfred Huber, Willard S. Macdonald, Roderic Grupen
A Control Basis For Multilegged Walking, Manfred Huber, Willard S. Macdonald, Roderic Grupen
Roderic Grupen
This paper presents a distributed control approach to legged locomotion that constructs behavior on-line by activating combinations of reusable feedback control laws drawn from a control basis. Sequences of such controller activations result in flexible aperiodic step sequences based on local sensory information. Different tasks are achieved by varying the composition functions over the same basis controllers, rather than by geometric planning of leg placements or the design of new task-specific behaviors. In addition, the device-independent nature of the control basis allows its generalization not only over task domains, but also over different hardware platforms. To show the applicability of …
Generalization Kdv Equation For Fluid Dynamics And Quantum Algebras, Andrei Ludu
Generalization Kdv Equation For Fluid Dynamics And Quantum Algebras, Andrei Ludu
Andrei Ludu
No abstract provided.
An Augmented Galerkin Algorithms For First Kind Integral Equations Of Hammerstein Type, S. Abbasbandy, E. Babolian
An Augmented Galerkin Algorithms For First Kind Integral Equations Of Hammerstein Type, S. Abbasbandy, E. Babolian
Saeid Abbasbandy
Recent papers, [1],[2] & [3], describe some algorithms for linear first kind integral equations. These algorithms are based on augmented Galerkin method and Cross-validation scheme [5]. The results show that, these algorithms work well for linear equations. In this paper we apply algorithms of [1] & [2] on non-linear first kind integral equations of Hammerstein type with bounded solution. In order to obtain a posteriori error estimate, we apply fifteen-point Gauss-Kronrod quadrature rule [4]. Finally, we give a number of numerical examples showing that the algorithms work well in practice.
[(Co)H(Pph3)2-Arachno-Osb3h8], Nigam Rath, J. Bould, L. Barton
[(Co)H(Pph3)2-Arachno-Osb3h8], Nigam Rath, J. Bould, L. Barton
Nigam Rath
Purchasing Power Parity, Unit Roots And Dynamic Structure, Douglas G. Steigerwald
Purchasing Power Parity, Unit Roots And Dynamic Structure, Douglas G. Steigerwald
Douglas G. Steigerwald
Recent studies of puchasing power parity (PPP) account for the possible presence of unit roots in nominal exchange rates and relative price indicies by applying standard unit-root tests to real exchange rates, which are ratios of nominal exchange rates and relative price indicies. These studies occasionally find evidence of PPP but, as a whole, the evidence is not definitive. Standard unit-root tests impose a restrictive dynamic structure between nominal exchange rates and relative price indicies. I specify and estimate a generalized dynamic structure. I reject the dynamic restrictions implicit in standard unit-root tests of PPP, and find stronger evidence of …