Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Engineering Physics (7)
- Computer Sciences (4)
- Engineering (4)
- Theory and Algorithms (4)
- Analysis (3)
-
- Applied Mathematics (3)
- Control Theory (3)
- Dynamic Systems (3)
- Electrical and Computer Engineering (3)
- Elementary Particles and Fields and String Theory (3)
- Fluid Dynamics (3)
- Materials Science and Engineering (3)
- Mathematics (3)
- Nanoscience and Nanotechnology (3)
- Nanotechnology Fabrication (3)
- Non-linear Dynamics (3)
- Numerical Analysis and Computation (3)
- Ordinary Differential Equations and Applied Dynamics (3)
- Other Applied Mathematics (3)
- Other Mathematics (3)
- Other Physical Sciences and Mathematics (3)
- Partial Differential Equations (3)
- Polymer and Organic Materials (3)
- Astrophysics and Astronomy (1)
- Bioimaging and Biomedical Optics (1)
- Biological and Chemical Physics (1)
- Biomedical Engineering and Bioengineering (1)
- Optics (1)
- Keyword
-
- Electrospinning (3)
- Algorithm (1)
- Biophysics (1)
- Conference articles (1)
- Confinement (1)
-
- Electromagnetic (1)
- Evolution Computation (1)
- Fractal Griffith’s crack (1)
- Fractal calculus (1)
- Genetic Algorithm (1)
- Imaging (1)
- In vivo (1)
- Ionic salt (1)
- J-integral (1)
- Journal articles (1)
- Living cells (1)
- Local fractional derivative (1)
- M.S. thesis (1)
- MRNA (1)
- Mean value theorems (1)
- Microbiology (1)
- Microfluidics (1)
- Nanoantenna (1)
- Neural Network (1)
- Optimization (1)
- Plasmon (1)
- Poly(vinyl alcohol) (1)
- Rolle’s theorem (1)
- Sensing (1)
- Single molecule (1)
Articles 1 - 16 of 16
Full-Text Articles in Physics
Does Stellar Feedback Create H I Holes? A Hubble Space Telescope/Very Large Array Study Of Holmberg Ii, Daniel R. Weisz, Evan Skillman, John Cannon, Andrew E. Dolphin, Robert C. Kennicutt, Janice Lee, Fabian Walter
Does Stellar Feedback Create H I Holes? A Hubble Space Telescope/Very Large Array Study Of Holmberg Ii, Daniel R. Weisz, Evan Skillman, John Cannon, Andrew E. Dolphin, Robert C. Kennicutt, Janice Lee, Fabian Walter
John Cannon
No abstract provided.
Bacterial Growth And Motility In Sub-Micron Constrictions, Jaan Männik, Rosalie Driessen, Peter Galajda, Juan E. Keymer, Cees Dekker
Bacterial Growth And Motility In Sub-Micron Constrictions, Jaan Männik, Rosalie Driessen, Peter Galajda, Juan E. Keymer, Cees Dekker
Jaan Männik
In many naturally occurring habitats, bacteria live in micrometer-size confined spaces. Although bacterial growth and motility in such constrictions is of great interest to fields as varied as soil microbiology, water purification, and biomedical research, quantitative studies of the effects of confinement on bacteria have been limited. Here, we establish how Gram-negative Escherichia coli and Gram-positive Bacillus subtilis bacteria can grow, move, and penetrate very narrow constrictions with a size comparable to or even smaller than their diameter. We show that peritrichously flagellated E. coli and B. subtilis are still motile in microfabricated channels where the width of the channel …
Research On Fractal Mathematics And Some Application In Mechanics, Yang Xiaojun
Research On Fractal Mathematics And Some Application In Mechanics, Yang Xiaojun
Xiao-Jun Yang
Since Mandelbrot proposed the concept of fractal in 1970s’, fractal has been applied in various areas such as science, economics, cultures and arts because of the universality of fractal phenomena. It provides a new analytical tool to reveal the complexity of the real world. Nowadays the calculus in a fractal space becomes a hot topic in the world. Based on the established definitions of fractal derivative and fractal integral, the fundamental theorems of fractal derivatives and fractal integrals are investigated in detail. The fractal double integral and fractal triple integral are discussed and the variational principle in fractal space has …
Quiescent Isolation: The Extremely Extended H I Halo Of The Optically Compact Dwarf Galaxy Adbs 113845+2008, John Cannon, John J. Salzer, Jessica L. Rosenberg
Quiescent Isolation: The Extremely Extended H I Halo Of The Optically Compact Dwarf Galaxy Adbs 113845+2008, John Cannon, John J. Salzer, Jessica L. Rosenberg
John Cannon
No abstract provided.
The True Durations Of Starbursts: Hubble Space Telescope Observations Of Three Nearby Dwarf Starburst Galaxies, Kristen B.W. Mcquinn, Evan D. Skillman, John Cannon, Julianne J. Dalcanton, Andrew Dolphin, David Stark, Daniel Weisz
The True Durations Of Starbursts: Hubble Space Telescope Observations Of Three Nearby Dwarf Starburst Galaxies, Kristen B.W. Mcquinn, Evan D. Skillman, John Cannon, Julianne J. Dalcanton, Andrew Dolphin, David Stark, Daniel Weisz
John Cannon
No abstract provided.
Periodic And Dynamic 3-D Gold Nanoparticle− Dna Network Structures For Surface-Enhanced Raman Spectroscopy-Based Quantification, Kyuwan Lee
Kyuwan Lee
The enhancement factor of gold nanoparticles linked by DNA in a three-dimensional (3-D) network structure was evaluated as 1.12 × 107 and shown to be greater than a two-dimensional (2-D) array by a factor of 10, possibly due to the dimensional expansion of resonance and periodicity of the so formed structures. Uniform and higher level of enhancement was possible from these DNA linked gold nanoparticle networks because of the matching of the resonant condition and the excitation wavelength (785 nm) to enable dynamic quantification of analytes by surface-enhanced Raman spectroscopy (SERS). The structure was first validated by obtaining a SERS …
Triggered Star Formation And The Creation Of The Supergiant H I Shell In Ic 2574, Daniel R. Weisz, Evan D. Skillman, John Cannon, Fabian Walter, Elias Brinks, Jürgen Ott, Andrew E. Dolphin
Triggered Star Formation And The Creation Of The Supergiant H I Shell In Ic 2574, Daniel R. Weisz, Evan D. Skillman, John Cannon, Fabian Walter, Elias Brinks, Jürgen Ott, Andrew E. Dolphin
John Cannon
No abstract provided.
Effect Of Salts On The Electrospinning Of Poly(Vinyl Alcohol), Jonathan J. Stanger, Nick Tucker, Mark P. Staiger, Kerry Kirwan, Stuart Coles, Daniel Jacobs, Nigel Larsen
Effect Of Salts On The Electrospinning Of Poly(Vinyl Alcohol), Jonathan J. Stanger, Nick Tucker, Mark P. Staiger, Kerry Kirwan, Stuart Coles, Daniel Jacobs, Nigel Larsen
Jonathan J Stanger
Fibres with a diameter in the nanometer range were electrospun from aqueous poly(vinyl alcohol) (PVOH). In order to improve the mass deposition rate and decrease the final fibre diameter salts (NaCl, LiCl, LiBr and LiF) were added to the solution. The aim was to increase the charge density and hence increase the electrostatic forces on the fluid. It was found that with increasing salt concentration the charge density did increase. However the mass deposition rate was found to decrease and the final fibre diameter was found to increase. The decrease in mass deposition rate is explained by considering the concept …
Effect Of Charge Density On The Taylor Cone In Electrospinning, Jonathan J. Stanger, Nick Tucker, Kerry Kirwan, Stuart Coles, Daniel Jacobs, Mark P. Staiger
Effect Of Charge Density On The Taylor Cone In Electrospinning, Jonathan J. Stanger, Nick Tucker, Kerry Kirwan, Stuart Coles, Daniel Jacobs, Mark P. Staiger
Jonathan J Stanger
A detailed understanding of charge density and its origins during the electrospinning process is desirable for developing new electrospinnable polymer-solvent systems and ensuring mathematical models of the process are accurate. In this work, two different approaches were taken to alter the charge density in order to measure its effect on the Taylor cone, mass deposition rate and initial jet diameter. It was found that an increase in charge density results in a decrease in the mass deposition rate and initial jet diameter. A theory is proposed for this behaviour in that an increase in charge density leads to the tip …
The Effect Of Electrode Configuration And Substrate Material On The Mass Deposition Rate Of Electrospinning, Jonathan J. Stanger, Nick Tucker, Andrew Wallace, Nigel Larsen, Mark P. Staiger, Roger Reeves
The Effect Of Electrode Configuration And Substrate Material On The Mass Deposition Rate Of Electrospinning, Jonathan J. Stanger, Nick Tucker, Andrew Wallace, Nigel Larsen, Mark P. Staiger, Roger Reeves
Jonathan J Stanger
Poly(vinyl alcohol) (PVOH) was electrospun using different methods to charge the polymer solution. A positive high voltage relative to the collecting electrode significantly increased the fibre deposition rate. Electron microscopy showed that approximately half of the increase in fibre mass was due to thicker fibres being deposited. The current flowing from the grounded electrode was measured to determine the charge carried on the PVOH jet. This showed that for a positive voltage charging condition there is a much larger current and hence more charge carriers generated in the PVOH solution. As a result, more mass is ejected from the Taylor …
The Fundamentals Of Local Fractional Derivative Of The One-Variable Non-Differentiable Functions, Yang Xiaojun
The Fundamentals Of Local Fractional Derivative Of The One-Variable Non-Differentiable Functions, Yang Xiaojun
Xiao-Jun Yang
Based on the theory of Jumarie’s fractional calculus, local fractional derivative is modified in detail and its fundamentals of local fractional derivative are proposed in this paper. The uniqueness of local fractional derivative is obtained and the Rolle’s theorem, the mean value theorem, the Cauchy’s generalized mean value theorem and the L’Hospital’s rules are proved.
Local Fractional Newton’S Method Derived From Modified Local Fractional Calculus, Yang Xiao-Jun
Local Fractional Newton’S Method Derived From Modified Local Fractional Calculus, Yang Xiao-Jun
Xiao-Jun Yang
A local fractional Newton’s method, which is derived from the modified local fractional calculus , is proposed in the present paper. Its iterative function is obtained and the convergence of the iterative function is discussed. The comparison between the classical Newton iteration and the local fractional Newton iteration has been carried out. It is shown that the iterative value of the local fractional Newton method better approximates the real-value than that of the classical one.
A Neural Network: Family Competition Genetic Algorithm And Its Application In Electromagnetic Optimization, Chien Hsun Chen, P. Y. Chen, H. Weng
A Neural Network: Family Competition Genetic Algorithm And Its Application In Electromagnetic Optimization, Chien Hsun Chen, P. Y. Chen, H. Weng
Chien Hsun Chen
This study proposes a neural network-family competition genetic algorithm (NN-FCGA) for solving the electromagnetic (EM) optimization and other general-purpose optimization problems. The NN-FCGA is a hybrid evolutionary-based algorithm, combining the good approximation performance of neural network (NN) and the robust and effective optimum search ability of the family competition genetic algorithms (FCGA) to accelerate the optimization process. In this study, the NN-FCGA is used to extract a set of optimal design parameters for two representative design examples: the multiple section low-pass filter and the polygonal electromagnetic absorber. Our results demonstrate that the optimal electromagnetic properties given by the NN-FCGA are …
Five-Dimensional 2-Branes And The Universal Hypermultiplet, Moataz Emam
Five-Dimensional 2-Branes And The Universal Hypermultiplet, Moataz Emam
Moataz Emam
No abstract provided.
Symplectic Covariance Of The N = 2 Hypermultiplets, Moataz Emam
Symplectic Covariance Of The N = 2 Hypermultiplets, Moataz Emam
Moataz Emam
No abstract provided.
Performance Of A Single-Crystal Diamond-Pixel Telescope, R. Hall-Wilton, V. Ryjov, M. Pernicka, V. Halyo, B. Harrop, A. Hunt, D. Marlow, E. Bartz, J. Doroshenko, D. Hits, S. Schnetzer, R. Stone, W. Bugg, M. Hollingsworth, Stefan Spanier, W. Johns
Performance Of A Single-Crystal Diamond-Pixel Telescope, R. Hall-Wilton, V. Ryjov, M. Pernicka, V. Halyo, B. Harrop, A. Hunt, D. Marlow, E. Bartz, J. Doroshenko, D. Hits, S. Schnetzer, R. Stone, W. Bugg, M. Hollingsworth, Stefan Spanier, W. Johns
stefan spanier
We describe the results from a beam test of a telescope consisting of three planes of single-crystal, diamond pixel detectors. This telescope is a prototype for a proposed small-angle luminosity monitor, the Pixel Luminosity Telescope (PLT), for CMS. We recorded the pixel addresses and pulse heights of all pixels over threshold as well as the fast-or signals from all three telescope planes. We present results on the telescope performance including occupancies, pulse heights, fast-or efficiencies and particle tracking. These results show that the PLT design concept is sound and indicate that the project is ready to proceed with the next …