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This research investigates and compares some of the strategic choices made by small wine firms from two different New World wine producing countries, Australia and New Zealand, and one traditional wine producing region of France. This research was first conducted in 2003 in France with 98 wine firms being interviewed and then in Australia and New Zealand, with a total of 68 wine firms interviewed in 2004. In order to explain the differences in business practices, an effort to match wine sector perspectives and strategic management profiles is presented through a hierarchical cluster analysis. Some complementary explanations for the clusters found can be suggested: business practices are clearly dependent upon the business activity (bottled wine versus bulk wine), and the main goal of the owner-manager (improving business economic performance versus increasing market share). [EconLit classification: L190, L210]. © 2006 Wiley Periodicals, Inc. Agribusiness 22: 405-416, 2006.

In this letter, we report the results obtained on polycrystalline silicon thin films using Raman spectrometry in resonance with the silicon direct band gap. First, we show that accurate information about crystallites can be obtained in these experimental conditions, without any deconvolution of Raman spectra. Second, we apply the technique to estimate the mechanical stress of polycrystalline silicon thin films.

To limit to a minimum the number of a priori hypotheses in the development of a numerical model of a-Si:H deposition plasma reactors from silane, a two-dimensional treatment of transport phenomena and chemical reactions has been selected and coupled to a onedimensional treatment of electron-molecule interactions. The results have been compared with a set of experimental data giving the deposition rate profile as well as the gas phase composition in the exit stream. While the agreement is satisfactory for the deposition rate, some discrepancies between calculated and experimental gas concentrations call for additional investigations. NomenclatureAmorphous hydrogenated silicon Initial concentration of reactive gas Concentration of k species (mol6cules per cm3) Diffusion coefficient of k species (cmZ s-') Acceleration due to gravity (cm s-') Boltzmann constant Electron-molecule dissociation constant kJn,l Molecular mass Electron density Gas pressure Rate of deposition Electronic dissociation rate of silane (mole cm-'ss-') Volume production (or consumption) rate of k species (mole ~m -~s -' ) Surface reactivity of k species (mol cm-2s-') Sticking coefficient of k species Radio frequency voltage Transversal velocity Axial velocity Collision velocity of k species Electrical power density Transversal variable Molar fraction (C(k)/C o) z Axial variable 8, Yk IC Gas viscosity P Gas density (g ~m -~) Surface reaction probability of the k species Disappearance rate of k species by recombination on the surface

PurposeThe purpose of this paper is to analyse the structural characteristics, the governance and the performance of two French and Italian groups of wine cooperatives, with two objectives in mind. On one hand, the study will analyse the presence of similarities between the characteristics of the two groups of companies which were founded in the same period within a similar legal framework; on the other, it will study the presence of links between the strategic policy of the companies and their structural, governance and performance characteristics.Design/methodology/approachThe study uses survey data obtained from interviews with 25 wine cooperatives. It covers the topics of their structure, organisation, strategies, management and performance in Italy (specifically in Umbria, a region in the centre of Italy), and in France (in Languedoc‐Roussillon, a region in southern France). Other indicators of performance, calculated from the balance sheets of the companies, were added to this analysis, and a careful analysis was drawn up to check the factors which condition the performance of the companies.FindingsThe main finding underlines some strong differentiating elements between those cooperatives selling the biggest part of their production as bulk wine and those selling it as packaged wine. But the first situation does not lead automatically to inferring a decline or an involution of these cooperatives. On the contrary, the mitigated performances that were found clearly question whether there is a strategic evolution towards more specialisation (intermediate phases of product transformation, leading to business‐to‐business differentiation strategies) which could be more profitable for their growers‐owners than further integration towards packaged wine sales.Originality/valueThe analysis deals with the problem of performance and governance of the transformation cooperative companies in the wine sector, which produce more than 50 percent of the entire wine production both in France and Italy.

A numerical model of silicon nitride deposition from an NH,-SiH, mixture in a largesized radiofrequency plasma reactor has been developed. A bidimensional treatment of transpolt phenomena, of major importance in this type of reactor, was used. Analysis of the modelling results showed that aminosilane radicals were the main deposition precursors. The steep decrease in deposition rate in the flow direction that was observed can be explained by examining the calculated concentration profiles. Concentration of ith species (mol m-3) Initial concentration of ith species (mol m -3, Diffusion coefficient of ith species in the mixture (m's-l) Electron impact dissociation constant (m3s-') Electron impact ionization constant (m3s-l) Rate constant of reaction i (mol-' m3 s-l) Molar mass on species i (kgmol-') Electronic density Pressure (Pa) Volumic flow rate of species A Ideal gas constant (8.32Jmol-' K-') Deposition rate (ms-I) Reaction term in the gas phase (m01m~s-l) Reaction term at a surface (molm2s-') Sticking coefficient of the ith species Deposition temperature (K) Axial velocity (ms-') Radial velocity (ms-') Electrical power dissipated in the discharge (W) C0!!ip,ip'on \re!p'ocity