3,517 research outputs found
Internationalization of firms: revitalizing the board of directors after a cross-border acquisition
This paper aims to show the importance of introducing an integration manager (i.e. an executive position used to channel the acquiring firm’s course of action and strengthen the success of a post-acquisition integration process) within the acquiring firm’s board of directors. Design/methodology/approach: This is a theoretical paper that introduces the integration manager within the board of privately held firms going internationally via acquisitions and serving as an “out-insider” director able to balance the conflicting demands of the previously separated entities during their integration process. The authors present an explanatory case study that empirically contributes to the board of directors’ design for internationalization. Findings: The authors posit that the integration manager serves as an “out-insider” director of the board for privately held firms, possessed by large-block shareholders, going internationally via acquisitions, providing the necessary expertise and knowledge of the target firm’s products and industry. Originality/value: The provided study aims to show that international acquisitions, even though apparently less risky than greenfield investments, may require additional neutral information flow – both within the due-diligence process and the post-acquisition integration – that only outsiders possess. Such an outsider has been individuated in the integration manager whose crucial role focuses on smoothing the pre- and post-acquisition integration processes
Modified Confinement Model for Size Dependent Raman Shift and Linewidth of Silicon Nanocrystals
A modified phonon confinement model considering the size distribution, an
improved phonon dispersion curve and a confinement function is developed for
the calculation of size dependent Raman spectra of the silicon (Si)
nanocrystals. The model is capable in simultaneous calculation of the Raman
shift, intensity and linewidth. The calculated size dependent redshift and
linewidth of Raman spectra are in good agreement with the available
experimental data in literature and better than previously reported theoretical
results. The rapid rise in the redshift and linewidth for relatively smaller Si
nanocrystals are well reproduced. The asymmetric behavior of Raman spectra is
also obtained from the present model.Comment: 15 pages, 4 figure
Linguistics
Contains research objectives and reports on three research projects.National Institute of Mental Health (Grant 5 P01 MH-13390-05)National Institutes of Health (Grant 5 TO1 HD-00111-07
Experimental investigation on a geocontainer Submerged reef
Geotextile sand containers (GSC) have been used as permanent construction elements in coastal works for more than 20 years,becoming more and more popular as an alternative to the most typical coastal structures. Aim of this work is to analyze the hydrodynamic, stability and morphodynamic response of a GSC submerged reef by means of an experimental campaign. The first investigated aspect concerned the hydrodynamics. The reflection and transmission coefficients for regular and random waves were determined: the reflection coefficient decreases with increasing of kh; the transmission coefficient decreases with the increase of the incident wave. As regards the stability of the structure, it was observed that the strongest waves were able to lift the row of GSC more exposed to the wave action. An instability curve for the GSC as a function of the hydrodynamic characteristics was then found. Flow visualization close to the reef was performed by means of ink, showing that the flow becomes asymmetric in the proximity of the structure. Concerning the morphodynamics, long-term tests were performed to calculate the scour. This reached its maximum value at the end of each test and it is present in all three cases. The scour causes serious problems of instability to the structure
Super-resolution provided by the arbitrarily strong superlinearity of the blackbody radiation
Blackbody radiation is a fundamental phenomenon in nature, and its explanation by Planck marks a cornerstone in the history of Physics. In this theoretical work, we show that the spectral radiance given by Planck's law is strongly superlinear with temperature, with an arbitrarily large local exponent for decreasing wavelengths. From that scaling analysis, we propose a new concept of super-resolved detection and imaging: if a focused beam of energy is scanned over an object that absorbs and linearly converts that energy into heat, a highly nonlinear thermal radiation response is generated, and its point spread function can be made arbitrarily smaller than the excitation beam focus. Based on a few practical scenarios, we propose to extend the notion of super-resolution beyond its current niche in microscopy to various kinds of excitation beams, a wide range of spatial scales, and a broader diversity of target objects
Granular size segregation in underwater sand ripples
We report an experimental study of a binary sand bed under an oscillating
water flow. The formation and evolution of ripples is observed. The appearance
of a granular segregation is shown to strongly depend on the sand bed
preparation. The initial wavelength of the mixture is measured. In the final
steady state, a segregation in volume is observed instead of a segregation at
the surface as reported before. The correlation between this phenomenon and the
fluid flow is emphasised. Finally, different ``exotic'' patterns and their
geophysical implications are presented.Comment: 8 page
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