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This page shows you the most recent publications within this specialty of the MedWorm directory. This is page number 28.

Femtosecond versus picosecond laser machining of nano-gratings and micro-channels in silica glass
The ability of 8 picosecond pulse lasers for three dimensional direct-writing in the bulk of transparent dielectrics is assessed through a comparative study with a femtosecond laser delivering 600 fs pulses. The comparison addresses two main applications: the fabrication of birefringent optical ...
Source: Optics Express - February 11, 2013 Category: Physics Authors: Costantino CorbariAudrey ChampionMindaugas GecevičiusMartynas BeresnaYves BellouardPeter G. Kazansky Source Type: research

Negative experimental evidence for magneto-orbital dichroism
A light beam can carry both spin angular momentum (SAM) and orbital angular momentum (OAM). SAM is commonly evidenced by circular dichroism (CD) experiments i. e. differential absorption of left and right-handed circularly polarized light. Recent experiments, supported by theoretical work, indicate ...
Source: Optics Express - February 11, 2013 Category: Physics Authors: Renaud MathevetBruno Viaris de LesegnoLaurence PruvostGeert L. J. A. Rikken Source Type: research

High nonlinear figure-of-merit amorphous silicon waveguides
The nonlinear response of amorphous silicon waveguides is reported and compared to silicon-on-insulator (SOI) samples. The real part of the nonlinear coefficient γ is measured by four-wave-mixing and the imaginary part of γ is characterized by measuring the nonlinear loss at ...
Source: Optics Express - February 11, 2013 Category: Physics Authors: J. MatresG. C. BallesterosP. GautierJ-M FédéliJ. MartíC. J. Oton Source Type: research

Rapid multiexposure in vivo brain imaging system using vertical cavity surface emitting lasers as a light source
We demonstrate an imaging technique implementing vertical cavity lasers with extremely low transient times for a greatly simplified realization of a multiexposure laser speckle contrast imaging system. Data from multiexposure laser speckle imaging was observed to more closely agree with absolute ...
Source: Applied Optics - February 11, 2013 Category: Physics Authors: Yaaseen AtchiaHart LevySuzie DufourOfer Levi Source Type: research

This Day in Science History - February 12 - Dirk Coster and Hafnium
February 12th marks the passing of Dirk Coster. Coster was a Dutch physicist who co-discovered the element hafnium with George Charles von Hevesy. For many years, element 72 was a missing ...Read Full Post
Source: About.com Chemistry - February 11, 2013 Category: Chemistry Source Type: news

1-2 punch strategy against bacteria and cancer
(Rice University) Rice University scientists are suggesting a new "combinatorial approach" to fight both drug-resistant bacteria and cancer. In this week's Proceedings of the National Academy of Sciences, a team from Rice's Center for Theoretical Biological Physics proposes using drug cocktails that contain both synthetic drug molecules and their nature-made counterparts. The synthetic drugs have a corkscrew-shaped "counterclockwise" twist not found in nature. Rice's team suggests combining them with clockwise-shaped toxins for maximum effect.
Source: EurekAlert! - Medicine and Health - February 11, 2013 Category: Global & Universal Source Type: news

How big is the universe … compared with a grain of sand? - video
'You'll never get your head around how big the universe is,' warns astronomer Pete Edwards of the University of Durham in this film about measuring astronomical distances
Source: Guardian Unlimited Science - February 10, 2013 Category: Science Tags: Astronomy World news guardian.co.uk Physics Science Space Source Type: news

Egg in a Bottle Demonstration
The egg in a bottle demonstration is an easy chemistry or physics demonstration you can do at home or in the lab. You set an egg on top of a ...Read Full Post
Source: About.com Chemistry - February 10, 2013 Category: Chemistry Source Type: news

Scientists and their emotions: the highs ... and the lows
A computational biologist describes the elation of making a breakthrough – and the misery of not doing so – while three other scientists tell us how their work plays on their emotionsI can be very emotional about my science. I get excited, frustrated, disappointed, delighted and exhausted by turns. Sometimes, I have stand-up arguments with colleagues and sometimes I have to sit down and quietly rethink an idea through from the beginning. Six months ago, I had a long argument, standing at the reception of my institute, with a colleague about how general a set of experiments were. I thought they were quite general; he di...
Source: Guardian Unlimited Science - February 9, 2013 Category: Science Tags: Research Higher education Features The Observer Science Source Type: news

To illuminate or not to illuminate: Roadway lighting as it affects traffic safety at intersections - Bullough JD, Donnell ET, Rea MS.
A two-pronged effort to quantify the impact of lighting on traffic safety is presented. In the statistical approach, the effects of lighting on crash frequency for different intersection types in Minnesota were assessed using count regression models. The m...
Source: SafetyLit: All (Unduplicated) - February 9, 2013 Category: Global & Universal Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Chances and limits of method restriction: a detailed analysis of suicide methods in Switzerland - Habenstein A, Steffen T, Bartsch C, Michaud K, Reisch T.
The objective of this study was to estimate the potential of method restriction as a public health strategy in suicide prevention. Data from the Swiss Federal Statistical Office and the Swiss Institutes of Forensic Medicine from 2004 were gathered and cate...
Source: SafetyLit: All (Unduplicated) - February 9, 2013 Category: Global & Universal Tags: Engineering, Physics, Structural Soundness and Failure Source Type: news

Aviation in 1913: Images from Scientific American 's Archives [Slide Show]
The new science and art of flight evolved as inventors created machines to fill specific flying purposes. While the storm clouds of World War I gathered, military aviation became predominant. [More]
Source: Scientific American - Official RSS Feed - February 9, 2013 Category: Science Tags: More Science,Physics,Technology,Automotive Technology,More Science,History of Science,Society & Policy Source Type: research

The influence of inhomogeneous adhesion on the detachment dynamics of adhering cells.
Abstract The adhesion of cells to surfaces plays a crucial role in processes related to motility and tissue growth. Nonspecific interactions with a surface, e.g., by electrostatic or van der Waals forces, can complement specific molecular interactions and can themselves support strong adhesion. In order to understand the mechanism by which cells establish an adhesive interface in the absence of specific proteins, we have studied the detachment kinetics of monocytic cells from glass surfaces coated with poly-L-lysine. We exposed adhering cells to a shear flow and studied their deformation and detachment trajectories...
Source: European Biophysics Journal : EBJ - February 9, 2013 Category: Physics Authors: Irmscher M, van Laarhoven KA, de Jong AM, Prins MW Tags: Eur Biophys J Source Type: research

Current events
Source: Journal of Synchrotron Radiation - February 9, 2013 Category: Physics Authors: , Tags: current events Source Type: research

Multi-layered dielectric cladding plasmonic microdisk resonator filter and coupler
Bo Han Cheng (成柏翰) and Yung-Chiang Lan (藍永強) This work develops the plasmonic microdisk filter/coupler, whose effectiveness is evaluated by finite-difference time-domain simulation and theoretical analyses. Multi-layer dielectric cladding is used to prevent the scattering of surface plasmons (SPs) from a silver microdisk. This method allows de ... [Phys. Plasmas 20, 020701 (2013)] published Fri Feb 8, 2013.
Source: Physics of Plasmas - February 8, 2013 Category: Physics Source Type: research

On the structure of plasma liners for plasma jet induced magnetoinertial fusion
Hyoungkeun Kim, Lina Zhang, Roman Samulyak, and Paul Parks The internal structure and self-collapse properties of plasma liners, formed by the merger of argon plasma jets, have been studied via 3-dimensional numerical simulations using the FronTier code. We have shown that the jets merger process is accomplished through a cascade of oblique shock waves that ... [Phys. Plasmas 20, 022704 (2013)] published Fri Feb 8, 2013.
Source: Physics of Plasmas - February 8, 2013 Category: Physics Source Type: research

Gyroaverage effects on chaotic transport by drift waves in zonal flows
Julio J. Martinell and Diego del-Castillo-Negrete Finite Larmor radius (FLR) effects on E x B test particle chaotic transport in the presence of zonal flows is studied. The FLR effects are introduced by the gyro-average of a simplified E x B guiding center model consisting of the linear superposition of a non-monotonic zonal flow and drift wave ... [Phys. Plasmas 20, 022303 (2013)] published Fri Feb 8, 2013.
Source: Physics of Plasmas - February 8, 2013 Category: Physics Source Type: research

Representation of ideal magnetohydrodynamic modes
R. B. White One of the most fundamental properties of ideal magnetohydrodynamics is the condition that plasma motion cannot change magnetic topology. The conventional representation of ideal magnetohydrodynamic modes by perturbing a toroidal equilibrium field through deltaB-vector =[del] x (xi-vector x B-vecto ... [Phys. Plasmas 20, 022105 (2013)] published Fri Feb 8, 2013.
Source: Physics of Plasmas - February 8, 2013 Category: Physics Source Type: research

Investigation of charge transfer and ionization in He-like systems (Li, Be, B, C, N, O)-hydrogen atom collisions in Debye plasmas
M. K. Pandey, Y.-C. Lin, and Y. K. Ho The charge transfer and ionization cross sections have been calculated for He-like system (Li, Be, B, C, N, O) and hydrogen atom collisions in Debye plasmas for energies ranging from 1 to 500 keV using the classical trajectory Monte Carlo method. Interactions of the active electrons with the project ... [Phys. Plasmas 20, 022104 (2013)] published Fri Feb 8, 2013.
Source: Physics of Plasmas - February 8, 2013 Category: Physics Source Type: research

Oblique shock structures formed during the ablation phase of aluminium wire array z-pinches
G. F. Swadling, S. V. Lebedev, N. Niasse, J. P. Chittenden, G. N. Hall et al. A series of experiments has been conducted in order to investigate the azimuthal structures formed by the interactions of cylindrically converging plasma flows during the ablation phase of aluminium wire array Z pinch implosions. These experiments were carried out using the 1.4 MA, 240 ns MAGPIE gen ... [Phys. Plasmas 20, 022705 (2013)] published Fri Feb 8, 2013.
Source: Physics of Plasmas - February 8, 2013 Category: Physics Source Type: research

Theoretical treatments of the bound-free contribution and experimental best practice in X-ray Thomson scattering from warm dense matter
Brian A. Mattern and Gerald T. Seidler By comparison with high-resolution synchrotron x-ray experimental results, we assess several theoretical treatments for the bound-free (core-electron) contribution to x-ray Thomson scattering (i.e., also known as nonresonant inelastic x-ray scattering). We identify an often overlooked source of syst ... [Phys. Plasmas 20, 022706 (2013)] published Fri Feb 8, 2013.
Source: Physics of Plasmas - February 8, 2013 Category: Physics Source Type: research

Stability of passive locomotion in inviscid wakes
Babak G. Oskouei and Eva Kanso We consider the passive locomotion of rigid bodies in inviscid point-vortex wakes. This work is motivated by a common belief that live and inanimate objects may extract energy from unsteady flows for locomotory advantages. Studies on energy extraction from unsteady flows focus primarily on energy ef ... [Phys. Fluids 25, 021901 (2013)] published Fri Feb 8, 2013.
Source: Physics of Fluids - February 8, 2013 Category: Physics Source Type: research

Sample dispersion in isotachophoresis with Poiseuille counterflow
Somnath Bhattacharyya, Partha P. Gopmandal, Tobias Baier, and Steffen Hardt A particular mode of isotachophoresis (ITP) employs a pressure-driven flow opposite to the sample electromigration direction in order to anchor a sample zone at a specific position along a channel or capillary. We investigate this situation using a two-dimensional finite-volume model based on the Ne ... [Phys. Fluids 25, 022001 (2013)] published Fri Feb 8, 2013.
Source: Physics of Fluids - February 8, 2013 Category: Physics Source Type: research

Rayleigh-Benard convection for viscoplastic fluids
Mohamed Darbouli, Christel Metivier, Jean-Michel Piau, Albert Magnin, and Ahmed Abdelali The influence of rheological and interfacial properties of yield stress fluids is investigated on the onset of the Rayleigh-Benard convection. Different Carbopol (B.F. Goodrich) gels are used in a circular cell for Rayleigh-Benard experimental setup. The influence of the boundary conditions is also ... [Phys. Fluids 25, 023101 (2013)] published Fri Feb 8, 2013.
Source: Physics of Fluids - February 8, 2013 Category: Physics Source Type: research

Linearisable ultradiscrete systems with sign variables and the confinement of singularities
We present the singularity analysis of the ultradiscrete analogue of linearisable mappings of Quispel-Roberts-Thompson (QRT) type. The ultradiscretisation method used here is one which keeps track of signs and thus can be applied without the positivity restrictions of the classical ultradiscretisati ... [J. Math. Phys. 54, 023504 (2013)] published Fri Feb 8, 2013.
Source: Journal of Mathematical Physics - February 8, 2013 Category: Physics Source Type: research

Calculating excited state properties using Kohn-Sham density functional theory
Magnus W. D. Hanson-Heine, Michael W. George, and Nicholas A. Besley The accuracy of excited states calculated with Kohn-Sham density functional theory using the maximum overlap method has been assessed for the calculation of adiabatic excitation energies, excited state structures, and excited state harmonic and anharmonic vibrational frequencies for open-shell singl ... [J. Chem. Phys. 138, 064101 (2013)] published Fri Feb 8, 2013.
Source: Journal of Chemical Physics - February 8, 2013 Category: Physics Source Type: research

NMR relaxation study of water dynamics in superparamagnetic iron-oxide-loaded vesicles
Yu-Wen Chen (陳育文), Chu-Jung Hsieh (謝渠蓉), Chao-Min Lin (林昭閔), and Dennis W. Hwang (黃聖言) Superparamagnetic iron oxide (SPIO) nanoparticles have been introduced as contrast agents for clinical applications in magnetic resonance imaging. Recently, SPIO has been also used for tracking cells. However, NMR relaxation of water molecules behaves differently in a SPIO solution and SPIO-loaded c ... [J. Chem. Phys. 138, 064502 (2013)] published Fri Feb 8, 2013.
Source: Journal of Chemical Physics - February 8, 2013 Category: Physics Source Type: research

Photo-induced electron detachment of protein polyanions in the VUV range
Claire Brunet, Rodolphe Antoine, Philippe Dugourd, Francis Canon, Alexandre Giuliani et al. Biomolecular polyanions mainly relax by electron emission after UV excitation. Here, we study photodetachment of protein polyanions in the 616 eV VUV range by coupling a linear quadrupole ion trap with a synchrotron beamline. Gas-phase VUV action spectra of electrospray-produced multiply deprotonate ... [J. Chem. Phys. 138, 064301 (2013)] published Fri Feb 8, 2013.
Source: Journal of Chemical Physics - February 8, 2013 Category: Physics Source Type: research

Spectroscopy of isolated PTCDA molecules on the KCl(100) surface: Vibrational spectra and azimuthal orientation
Mathias Muller, Alexander Paulheim, Christian Marquardt, and Moritz Sokolowski Small amounts of the model molecule perylene-3,4,9,10-tetracarboxylic acid dianhydride (PTCDA) were vacuum deposited on epitaxial KCl films on Ag(100). The use of a low substrate temperature (20 K) during deposition hampered molecular diffusion resulting in isolated monomers on the surface. Fluoresc ... [J. Chem. Phys. 138, 064703 (2013)] published Fri Feb 8, 2013.
Source: Journal of Chemical Physics - February 8, 2013 Category: Physics Source Type: research

Thiolate adsorption on Au(hkl) and equilibrium shape of large thiolate-covered gold nanoparticles
Georgios D. Barmparis, Karoliina Honkala, and Ioannis N. Remediakis The adsorption of thiolates on Au surfaces employing density-functional-theory calculations has been studied. The dissociative chemisorption of dimethyl disulfide (CHSSCH) on 14 different Au(hkl) is used as a model system. We discuss trends on adsorption energies, bond lengths, and bond angles as th ... [J. Chem. Phys. 138, 064702 (2013)] published Fri Feb 8, 2013.
Source: Journal of Chemical Physics - February 8, 2013 Category: Physics Source Type: research

Further details on the phase diagram of hard ellipsoids of revolution
Gustavo Bautista-Carbajal, Arturo Moncho-Jorda, and Gerardo Odriozola In recent work we revisited the phase diagram of hard ellipsoids of revolution (spheroids) by means of replica exchange Monte Carlo simulations. This was done by setting random initial configurations, and allows to confirm the formation of sm2 crystal structures at high densities [P. Pfleiderer and ... [J. Chem. Phys. 138, 064501 (2013)] published Fri Feb 8, 2013.
Source: Journal of Chemical Physics - February 8, 2013 Category: Physics Source Type: research

Reduced atomic pair-interaction design (RAPID) model for simulations of proteins
Boris Ni and Andrij Baumketner Increasingly, theoretical studies of proteins focus on large systems. This trend demands the development of computational models that are fast, to overcome the growing complexity, and accurate, to capture the physically relevant features. To address this demand, we introduce a protein model that use ... [J. Chem. Phys. 138, 064102 (2013)] published Fri Feb 8, 2013.
Source: Journal of Chemical Physics - February 8, 2013 Category: Physics Source Type: research

Communication: Designed diamond ground state via optimized isotropic monotonic pair potentials
E. Marcotte, F. H. Stillinger, and Salvatore Torquato We apply inverse statistical-mechanical methods to find a simple family of optimized isotropic, monotonic pair potentials (that may be experimentally realizable) whose classical ground state is the diamond crystal for the widest possible pressure range, subject to certain constraints (e.g., desirabl ... [J. Chem. Phys. 138, 061101 (2013)] published Fri Feb 8, 2013.
Source: Journal of Chemical Physics - February 8, 2013 Category: Physics Source Type: research

The role of octahedral tilting in the structural phase transition and magnetic anisotropy in SrRuO thin film
We present a stoichiometry-dependent structural phase transition in SrRuO film on SrTiO substrate. The oxygen stoichiometry in the films was varied by changing the oxygen partial pressure P(O) during the deposition process. For SrRuO films with P(O) >= 60 mTorr, they exhibited a pseudo-orthorhombic ... [J. Appl. Phys. 113, 063901 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Charge emissions from electrosprays in vacuum: Mixtures of formamide with methylammonium formate
David Garoz and Juan Fernandez de la Mora The charge/mass distribution f(q/m) of nanodrops and ions electrosprayed in vacuum from mixtures of formamide (FM) and methylammonium formate (MAF) is studied by time of flight mass spectrometry at MAF/FM volumetric concentrations of 5%, 10%, 25%, and 50%. Positive and negative polarities yield comp ... [J. Appl. Phys. 113, 064901 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Intensity dependent spectral features in high harmonic generation
Khuong Ba Dinh, Peter Hannaford, and Lap Van Dao We study the influence of the driving laser intensity on the spectral features of high harmonic generation in a semi-infinite gas cell. The effects of the harmonic dipole phase and the dispersion phase mismatches induced by the ionized medium during the harmonic generation process are revealed and t ... [J. Appl. Phys. 113, 063102 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Effect of growth temperature and post-growth annealing on luminescence properties of molecular beam epitaxy grown single layer Ge quantum dots
We report the detailed structural and luminescence properties of Si-embedded single layer Ge nanoislands grown via Stranski-Krastanov mechanism using molecular beam epitaxy. The luminescence energy peak positions correlated with structural properties have been studied as a function of the growth tem ... [J. Appl. Phys. 113, 063101 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Lanthanum halide nanoparticle scintillators for nuclear radiation detection
Paul Guss, Ronald Guise, Ding Yuan, Sanjoy Mukhopadhyay, Robert O'Brien et al. Nanoparticles with sizes
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Planar Hall resistance ring sensor based on NiFe/Cu/IrMn trilayer structure
Brajalal Sinha, Tran Quang Hung, Torati Sri Ramulu, Sunjong Oh, Kunwoo Kim et al. We have investigated the sensitivity of a planar Hall resistance sensor as a function of the ring radius in the trilayer structure Ta(3)/IrMn(10)/Cu(0.2)/NiFe(10)/Ta(3) (nm). The diagonal components of magnetoresistivity tensor in rectangular prism corresponding to anisotropic magnetoresistance are ... [J. Appl. Phys. 113, 063903 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Improved conductivity of Sb-doped SnO thin films
A. A. Alsac, A. Yildiz, T. Serin, and N. Serin Sb-doped SnO thin films at different thickness have been grown by sol-gel dip-coating method. All of the films exhibit degenerate semiconductor behavior and high free carrier concentrations. In the films, electrical transport can be explained reasonably well by assuming the electron-electron interac ... [J. Appl. Phys. 113, 063701 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Determination of the inner diameter of a double-walled carbon nanotube from its Raman spectra
Sedigheh Basirjafari, Siamak Esmaielzadeh Khadem, and Rasoul Malekfar In this paper, an exact formula is obtained for the inner diameter of double-walled carbon nanotube (DWCNT) as a function of its higher radial breathing mode (RBM) frequency, using the symbolic package of maple software. Its outer diameter is obtained from the inner diameter formula by considering t ... [J. Appl. Phys. 113, 064304 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Joule heat generation in thermionic cathodes of high-pressure arc discharges
M. S. Benilov and M. D. Cunha The nonlinear surface heating model of plasma-cathode interaction in high-pressure arcs is extended to take into account the Joule effect inside the cathode body. Calculation results are given for different modes of current transfer to tungsten cathodes of different configurations in argon plasmas o ... [J. Appl. Phys. 113, 063301 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Electro-optical response of polymer-dispersed liquid crystal single layers of large nematic droplets oriented by rubbed teflon nanolayers
Y. G. Marinov, G. B. Hadjichristov, A. G. Petrov, S. Marino, C. Versace et al. The surface orienting effect of rubbed teflon nanolayers on the morphology and electro-optical (EO) response of polymer-dispersed liquid crystal (PDLC) single layers of large nematic droplets was studied experimentally. In PDLC composites of the nematic liquid crystal (LC) E7 and NOA65 polymer, sing ... [J. Appl. Phys. 113, 064301 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Effects of parameter variations on negative effective constitutive parameters of non-metallic metamaterials
Yang Li and Nicola Bowler Analytical expressions describing the variability of effective constitutive parameters of non-metallic metamaterials, as a function of the constituent geometric and material parameters and their variations, have been developed from the total differential of Clausius-Mossotti expressions (using Mie d ... [J. Appl. Phys. 113, 063501 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Low-temperature indium-bonded alkali vapor cell for chip-scale atomic clocks
R. Straessle, M. Pellaton, C. Affolderbach, Y. Petremand, D. Briand et al. A low-temperature sealing technique for micro-fabricated alkali vapor cells for chip-scale atomic clock applications is developed and evaluated. A thin-film indium bonding technique was used for sealing the cells at temperatures of
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Search for long-range ferromagnetism: Charge-spin co-doped BaLaTiMO (M = Cr, Fe, and Co)
D. F. Shao, J. Yang, H. B. Jian, X. B. Zhu, and Y. P. Sun We investigate the structural, magnetic, and electrical properties of charge-spin co-doped BaLaTiMO (M = Cr, Fe, and Co). For BaLaTiCrO, carrier doping induces short-range ferromagnetism, and we find a large negative magnetoresistance in these compounds. However, for BaLaTiMO (M = Fe and Co), the ma ... [J. Appl. Phys. 113, 063902 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Non-periodicity of peak-to-peak distances in x-ray diffraction spectrums from perfect superlattices
I. Sankowska, J. Z. Domagala, O. M. Yefanov, A. Jasik, J. Kubacka-Traczyk et al. X-ray diffraction investigations of type II InAs/GaSb superlattice on a GaSb(001) substrate are presented. The wide range of diffraction angles (2theta/omega scans) covering 002 and 004 reflections was examined at Petra III synchrotron. The angular region between 002 and 004 reflections was the most ... [J. Appl. Phys. 113, 064302 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Physical interpretation and separation of eddy current pulsed thermography
Aijun Yin, Bin Gao, Gui Yun Tian, W. L. Woo, and Kongjing Li Eddy current pulsed thermography (ECPT) applies induction heating and a thermal camera for non-destructive testing and evaluation (NDT&E). Because of the variation in resultant surface heat distribution, the physical mechanism that corresponds to the general behavior of ECPT can be divided into an a ... [J. Appl. Phys. 113, 064101 (2013)] published Fri Feb 8, 2013.
Source: Journal of Applied Physics - February 8, 2013 Category: Physics Source Type: research

Self avoiding paths routing algorithm in scale-free networks
Abdeljalil Rachadi, Mohamed Jedra, and Noureddine Zahid In this paper, we present a new routing algorithm called the self avoiding paths routing algorithm. Its application to traffic flow in scale-free networks shows a great improvement over the so called efficient routing protocol while at the same time maintaining a relatively low average packet travel ... [Chaos 23, 013114 (2013)] published Fri Feb 8, 2013.
Source: Chaos - February 8, 2013 Category: Physics Source Type: research

Characterizing chaotic dynamics from simulations of large strain behavior of a granular material under biaxial compression
Michael Small, David M. Walker, Antoinette Tordesillas, and Chi K. Tse For a given observed time series, it is still a rather difficult problem to provide a useful and compelling description of the underlying dynamics. The approach we take here, and the general philosophy adopted elsewhere, is to reconstruct the (assumed) attractor from the observed time series. From t ... [Chaos 23, 013113 (2013)] published Fri Feb 8, 2013.
Source: Chaos - February 8, 2013 Category: Physics Source Type: research