Results 61 to 70 of about 5,145,048 (246)

Effects of using different plasmonic metals in metal/dielectric/metal subwavelength waveguides on guided dispersion characteristics

open access: yes, 2009
The fundamental guided dispersion characteristics of guided light in a subwavelength dielectric slit channel embedded by two different plasmonic metals are investigated when varying the gap width. As a result, an overall and salient picture of the guided
Ki Young Kim   +7 more
core   +1 more source

Airline Market Power and Intertemporal Price Dispersion [PDF]

open access: yes
This paper analyzes the empirical relationship between market structure and price dispersion in the airline markets connecting the UK and the Republic of Ireland.
Alberto A. Gaggero, Claudio A. Piga
core  

Probing the Relationship between Urban Primacy and Economic Development: A Cross-country Analysis [PDF]

open access: yesنشریه جغرافیا و برنامه‌ریزی, 2014
According to a prevalent belief since the 1960s, patterns of national spatial systems have been thought to be dynamically transmuted appropriate to the levels of national economic growth and development until a rather balanced and efficient hierarchy of ...
Ahmad Sharbatoghlie, Heydar Javanmard
doaj  

Regional and farm specialisation in Spanish agriculture before and after integration in the European Union [PDF]

open access: yes, 2001
In this paper, we study the evolution of agricultural product specialisation at farm and county level from 1979 to 1997 in Spain, thus covering all the stages of the gradual implementation of the Common Agricultural Policy.
Mora, Ricardo, San Juan, Carlos
core   +1 more source

Polarization dependence of the third-harmonic generation in multiband superconductors

open access: yes, 2018
In a superconductor the third-harmonic generation (THG) of a strong THz pulse is enhanced below Tc by the resonant excitation of lattice-modulated charge fluctuations (LCF), which modulate the response according to the polarization of the field.
Barone, P.   +3 more
core   +1 more source

Sperm DNA damage and disturbed chromatin condensation indexes (DFI and CMA3) in normozoospermic men with unexplained infertility problem

open access: yesThe Aging Male
Purpose The quantitatively measured sperm DNA damage and disturbed chromatin condensation indexes (%DNA fragmentation index [DFI%] and %high DNA staining index [%HDS]) and their relationships with sperm quality in normospermic men with unexplained ...
Mehdi Abedinzadeh   +3 more
doaj   +1 more source

Analysis and Modeling of Microstructured Fiber Using The Analytical Method Based on The Empirical Equation [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2013
In this paper, a new class of optical fibers is studied, i.e. microstructured fibers or photonic crystal fibers (PCF). The main objective is to characterize these fibers using different dispersion diagrams and present an interface that enables ...
DEBBAL Mohammed, CHIKH-BLED Mohammed
doaj  

Estimating the error of coordinate measuring machines

open access: yesComputer Assisted Methods in Engineering and Science, 2023
This paper presents a strategy to analyze the accuracy of measurements obtained in the calibration process of a Coordinate Measuring Machine (CMM). Thereafter, the operator will be able to find the most appropriate placement region for a part to be ...
Fabiana Zamora Wilke   +1 more
doaj  

Hydrodynamics beyond local equilibrium: application to electron gas

open access: yes, 2000
Generalized hydrodynamic theory, which does not rest on the requirement of a local equilibrium, is derived in the long-wave limit of a kinetic equation.
Pankratov, O., Tokatly, I. V.
core   +1 more source

Laminated Wave Turbulence: Generic Algorithms II

open access: yes, 2006
The model of laminated wave turbulence puts forth a novel computational problem - construction of fast algorithms for finding exact solutions of Diophantine equations in integers of order $10^{12}$ and more.
ALEXEY KARTASHOV   +8 more
core   +2 more sources

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