30,151 research outputs found
Three-dimensional Curve Motions Induced by the Modified Korteweg-de Vries Equation
We have constructed one-phase quasi-periodic solutions of the curve equation
induced by the mKdV equation. The solution is expressed in terms of the
elliptic functions of Weierstrass. This solution can describe curve dynamics
such as a vortex filament with axial velocity embedded in an incompressible
inviscid fluid. There exist two types of curves (type-A, type-B) according to
the form of the main spectra of the finite-band integrated solution. Our
solution includes various filament shapes such as the Kelvin-type wave, the
rigid vortex, plane curves, closed curves, and the Hasimoto one-solitonic
filament.Comment: 26 pages, 4 figure
Non-local Wess-Zumino Model on Nilpotent Noncommutative Superspace
We investigate the theory of the bosonic-fermionic noncommutativity,
, and the Wess-Zumino model
deformed by the noncommutativity. Such noncommutativity links well-known
space-time noncommutativity to superspace non-anticommutativity. The
deformation has the nilpotency. We can explicitly evaluate noncommutative
effect in terms of new interactions between component fields. The interaction
terms that have Grassmann couplings are induced. The noncommutativity does
completely break full supersymmetry to
theory in Minkowski signature. Similar to the space-time noncommutativity, this
theory has higher derivative terms and becomes non-local theory. However this
non-locality is milder than the space-time noncommutative field theory. Due to
the nilpotent feature of the coupling constants, we find that there are only
finite number of Feynman diagrams that give noncommutative corrections at each
loop order.Comment: Latex, 16 pages, 2 figures, typos corrected, some references and
comments on auxiliary field added, a figure replaced, English refine
Country Image, Perceived Product Quality and Purchase Intention: the Moderating Roles of Quality Warranty Certificate and Country-Image Transferred Strategies
This article aims at researching on the relationship of country image and customer perception on product quality and purchasing intention in South Korean. Additionally, the moderating roles of product quality warranty and country image transferred strategies are also taken into investigation in this empirical research. In order to make a research on these areas, questionnaire forms were distributed by emails and sending hard copies to 350 target samples in South Korea including Koreans and foreigners who have been living in South Korea and 215 forms were returned back and analyzed by SPSS v.21. The results indicated that gender, age groups and nationalities can significantly influence consumers' perception on the relationship country image and product quality. Surprisingly, the image of origin country produced products does not really affect consumers' perceived product quality, but the image of manufacturing country has a strong and significant influence on consumers' perception in terms of product quality. More interestingly, country image transferred strategy is ineffective in altering consumers' psychological perceptions on country image and perceived product quality. Apart from this, product quality warranty is still workable for boosting consumers' confidence in consuming products in Korean context. Even though this empirical research was considerably and carefully implemented, there are still some significant limitations in practice. The limitations and suggestion are finally introduced and explained
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