Search results for "Clos"
showing 10 items of 1439 documents
Measuring the financial capability of investors
2011
PurposeThe purpose of this paper is to provide further understanding of the financial capability of mutual fund investors, and compare internet and branch office investors. It seeks to examine mutual fund investors' abilities and awareness of the terms and risks of mutual fund investments using a novel measurement instrument.Design/methodology/approachAbility measurement techniques adapted from educational and psychological studies were applied in the paper. Empirical survey data were collected in Finland.FindingsThere were differences between different types of investors in terms of financial knowledge. The channel used by the investors in making investments differentiated the more knowled…
Market risk reporting in banking overcoming the limits of IAS/IFRS and Basel regulation
2017
Market risk in banking activity is becoming a more severe issue day by day for several reasons. Analysing it from a regulatory point of view is fundamental for assessing whether or not banks are in the conditions of disclosing a satisfactory degree of information about their market risk exposure. The two regulatory constraints to consider are International Accounting Standards (IAS/IFRS) and the Basel regulation. Both of them seem to put too many constraints on banks. They turn out to be over-over-regulated. Even if regulators put many efforts in trying to provide a useful regulation for banks' risk reporting and capital adequacy, we are still far from a good regulation. The regulatory proc…
The future role of bank branches and their managers: comparing managerial perceptions in Canada and Spain
1997
Although it was predicted that bank branches would quickly become obsolete in a computerized society, the reality is that many full‐service branches are not closing but rather evolving to meet changing needs. The role of the branch manager is crucial, and is also changing. In particular, managers are expected to take a lead in marketing activities. A questionnaire study was carried out to examine managers’ changing roles, using two samples of branch managers, one from Canada and one from Spain. Managers were asked to rate 21 function variables on their importance in bank management and in facing new market trends. Differences were found between the two samples, as were similarities: both id…
Fracture toughness of synthesised high-performance epoxies subject to accelerated water aging
2018
Abstract The effects of water uptake on the fracture toughness of epoxy systems with high glass-transition temperatures (Tg above 170 °C) are investigated. Aging conditioning has been conducted in hot water, followed by a desorption conditioning in a room temperature dry-airborne. Water aging determines plasticisation effects and crosslink-density modifications, revealed by reductions of the Tg. It is less known how such modifications influence the material fracture toughness. In this study, Single Edge Notched Bending samples have been tested according to standards, to evaluate the KIC fracture toughness at different stages of water absorption-desorption. The characterisation has been supp…
Formation of Laves phases in buoyancy matched hard sphere suspensions.
2018
Colloidal Laves phases (LPs) are promising precursors for photonic materials. Laves phases have not yet been observed to form in experiments on colloidal suspensions of hard spheres (HS), even though they have been reported in computer simulations. LP formation so far has been achieved only for binary mixtures of colloidal charged spheres or ligand-stabilized nano-particles after drying. Using static light scattering, we monitored LP formation and annealing in a binary mixture of buoyant hard sphere approximants (size ratio Γ = 0.77, number or molar fraction of small spheres xS = 0.76) for volume fractions in the fluid-crystal coexistence regions. All samples spontaneously formed MgZn2 type…
On the strong closure of strains and stresses in linear elasticity
1999
We consider the following special problem related to the optimal layout problems of materials: given two linear elastic materials, the elasticity tensors of which are C1 and C2, and a force f, find the strong closure of strains and stresses as the distribution of the materials varies, or, alternatively, find the sets of elasticity tensors which generate these strong closures. In this paper, it is shown that the local incompatibility conditions depending on C1, C2 and the local properties of strains or stresses completely characterize these sets. A connection to multiple-well problems is established.
A neutron tomography study: Probing the spontaneous crystallization of randomly packed granular assemblies
2018
We study the spontaneous crystallization of an assembly of highly monodisperse steel spheres under shaking, as it evolves from localized icosahedral ordering towards a packing reaching crystalline ordering. Towards this end, real space neutron tomography measurements on the granular assembly are carried out, as it is systematically subjected to a variation of frequency and amplitude. As expected, we see a presence of localized icosahedral ordering in the disordered initial state (packing fraction around 0.62). As the frequency is increased for both the shaking amplitudes (0.2 and 0.6 mm) studied here, there is a rise in packing fraction, accompanied by an evolution to crystallinity. The ext…
Evaluation of Residual Stresses During Fatigue Test in an FSW Joint
2008
At present, friction stir welding (FSW) represents one of the most interesting techniques in the field of welding. The process is has been implemented in industrial practice for joining aluminium alloys, while the welding of the titanium alloy and the steels is still primarily in a developmental stage.
Fatigue Crack Growth in Titanium and Aluminium Alloys under Bending
2007
The paper contains results of investigations of the crack growth in plane specimens made of Ti-6Al-4V titanium alloy and AlCu4Mg1 aluminium alloy under cyclic bending. The tests were done on specimens with the stress concentrators being one-sided sharp notch. On the fractures there have been observed first of all transcrystalline cracks through the α phase grains for both materials.
Fatigue crack growth in 2024-T351 Friction Stir Welded Joints: longitudinal residual stresses and microstructural effects
2009
Abstract The role of longitudinal residual stress on propagation of fatigue cracks was examined in friction stir welds produced in 2024-T351 aluminum alloy. Fatigue crack growth rate was obtained through constant Δ K Iapp tests for notches at different distances from the weld centerline. Subsequently, crack growth was correlated to weld residual stress measured by the cut-compliance method. It was found that residual stresses correspond to low crack growth rates outside the weld zone during fatigue loading. Once in the weld zone, the crack growth was affected by microstructural and hardness changes. Furthermore, weld residual stresses were mechanically relieved and effects on crack propagat…