11,059 research outputs found
CP Violation and Extra Dimensions
It is shown that the new sources of CP violation can be generated in the
models with more than one extra dimensions. In the supersymmetric models on the
space-time , where the radius moduli have auxiliary vacuum
expectation values and the supersymmetry breaking is mediated by the
Kaluza-Klein states of gauge supermultiplets, we analyze the gaugino masses and
trilinear couplings for two scenarios and obtain that there exist relative CP
violating phases among the gaugino masses and trilinear couplings.Comment: Latex, 7 page
Panoramic-reconstruction temporal imaging for seamless measurements of slowly-evolved femtosecond pulse dynamics
Single-shot real-time characterization of optical waveforms with
sub-picosecond resolution is essential for investigating various ultrafast
optical dynamics. However, the finite temporal recording length of current
techniques hinders comprehensive understanding of many intriguing ultrafast
optical phenomena that evolve over a time scale much longer than their fine
temporal details. Inspired by the space-time duality and by stitching of
multiple microscopic images to achieve a larger field of view in the spatial
domain, here a panoramic-reconstruction temporal imaging (PARTI) system is
devised to scale up the temporal recording length without sacrificing the
resolution. As a proof-of-concept demonstration, the PARTI system is applied to
study the dynamic waveforms of slowly-evolved dissipative Kerr solitons in an
ultrahigh-Q microresonator. Two 1.5-ns-long comprehensive evolution portraits
are reconstructed with 740-fs resolution and dissipative Kerr soliton
transition dynamics, in which a multiplet soliton state evolves into stable
singlet soliton state, are depicted
Scales, Couplings Revisited and Low Energy Phenomenology in M-theory on
We revisit the eleven dimension Planck scale, the physical scale of the
eleventh dimension, the physical scale of Calabi-Yau manifold and coupling in
hidden sector in M-theory on . And we discuss the reasonable bound on
them. Considering F-term of dilaton and moduli SUSY breaking and choosing two
repersentative points which correspond to scalar quasi-massless scenario and
dilaton dominant SUSY breaking scenario respectively, we analyze experimental
constraints to the parameter space. The sparticle spectrum and some
phenomenological predictions are also given.Comment: 35 pages and 8 eps files. One error on fig1b is correcte
Price Behavior of the Taiwan Depositary Receipt
This is a case study to discuss the Taiwan Depositary Receipt’s (TDR) market performance. Attention is focused on the event study, market risk analysis and the trading strategy for TDRs. Tests of abnormal returns for underlying stocks during the event period were conducted. Regression analysis via the market model, comparing the risk level between the TDR and the underlying stocks was investigated. Furthermore, causality tests are applied to explore the relationships between the price of underlying stocks and the corresponding TDR. Finally, utilizing the cointegration structure, suitable strategies for trading TDRs are proposed. The empirical results indicate that the underlying stocks have declaration effects, at the TDR’s initial announcement date. TDR’s issued after 2009 have higher risks and higher returns. The out-sampled empirical results show that there are no immediate arbitrage opportunities, however, the proposed waiting trading strategy could increase profits.Key words: Cointegration; Event study; Market risk; Taiwan depositary receipts; Trading strateg
Modeling Chinese post-90\u272 tourism loyalty to the ex-rival state using the perceived value approach
Purpose – A recent trend in tourism research involves the study of independent Chinese tourists.
Yet while post-90s or Generation Z (i.e., born in the 1990s) comprises an important share of nondomestic visitors to Taiwan and other tourist destinations, this segment of the tourist population is currently under-analyzed. As a pioneering piece of research in this area, this survey attempts to understand Chinese tourists of this cohort visiting the long-divided state.
Design – This research incorporates the social dimension of perceived value in the ordinarily employed perceived-value model to better understand why Chinese post-90s would like to recommend Taiwan.
Methodology – This study samples Chinese students from 12 universities located in the northern, central, southern, and western regions of Taiwan. They were investigated with the selfadministered survey which is composed of five constructs, for a total of 17 questions. Structural equation modeling was employed to analyze the collected data and testify the hypotheses.
Findings – The finding provides insights in the specific tourism behaviors of this cohort and how they are found distinct from their predecessors. The emotional dimension of the post-90s’ tourismrelated perceived value is a strong determinant of their loyalty to Taiwan as a tourist destination. The prior-rival situation between both sides of the Taiwan Strait might signify that social dimension significantly predict their loyalty, through the mediator of satisfaction.
Originality – This research provides important information for tourism businesses regarding place management and marketing strategies, enabling them to receive this new generation of Chinese customers
Modified Kedem-Katchalsky equations for osmosis through nano-pore
This work presents a modified Kedem-Katchalsky equations for osmosis through
nano-pore. osmotic reflection coefficient of a solute was found to be chiefly
affected by the entrance of the pore while filtration reflection coefficient
can be affected by both the entrance and the internal structure of the pore.
Using an analytical method, we get the quantitative relationship between
osmotic reflection coefficient and the molecule size. The model is verified by
comparing the theoretical results with the reported experimental data of
aquaporin osmosis. Our work is expected to pave the way for a better
understanding of osmosis in bio-system and to give us new ideas in designing
new membranes with better performance.Comment: 19 pages, 4 figure
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