Bulletin du Centre international de synthèse, section de synthèse historique

1930/06 (N9).

Bulletin du Centre international de synthèse, section de synthèse historique

1929/12 (N8).

Bulletin du Centre international de synthèse, section de synthèse historique

1928/06 (N5).

Bulletin du Centre international de synthèse, section de synthèse historique

1928/12 (N6).

Bulletin du Centre international de synthèse, section de synthèse historique

1927/06 (N3).

Bulletin du Centre international de synthèse, section de synthèse historique

1930/12 (N10).

Bulletin du Centre international de synthèse, section de synthèse historique

1929/06 (N7).

Bulletin du Centre international de synthèse, section de synthèse historique

Périodicité : Semestriel

Another Look at the Null of Stationary Real Exchange Rates: Panel Data with Structural Breaks and Cross-section Dependence

This paper re-examines the null of stationary of real exchange rate for a panel of seventeen OECD developed countries during the post-Bretton Woods era. Our analysis simultaneously considers both the presence of cross-section dependence and multiple structural breaks that have not received much attention in previous panel methods of long-run PPP. Empirical results indicate that there is little evidence in favor of PPP hypothesis when the analysis does not account for structural breaks. This conclusion is reversed when structural breaks are considered in computation of the panel statistics. We also compute point estimates of half-life separately for idiosyncratic and common factor components and find that it is always below one year.

Calculation of the critical crack size for cold form rectangular hollow section tube (CRHS) under bending load at -40º C temperature

To predict the capacity of the structure or the point which is followed by instability, calculation of the critical crack size is important. Structures usually contain several cracks but not necessarily all of these cracks lead to failure or reach the critical size. So, defining the harmful cracks or the crack size which is the most leading one to failure provides criteria for structure’s capacity at elevated temperature. The scope of this thesis was to calculate fracture parameters like stress intensity factor, the J integral and plastic and ultimate capacity of the structure to estimate critical crack size for this specific structure. Several three dimensional (3D) simulations using finite element method by Ansys program and boundary element method by Frank 3D program were carried out to calculate fracture parameters and results with the aid of laboratory tests (loaddisplacement curve, the J resistance curve and yield or ultimate stress) leaded to extract critical size of the crack. Two types of the fracture which is usually affected by temperature, Elastic and Elasti-Plastic fractures were simulated by performing several linear elastic and nonlinear elastic analyses. Geometry details of the weldment; flank angle and toe radius were also studied independently to estimate the location of crack initiation and simulate stress field in early stages of crack extension in structure. In this work also overview of the structure’s capacity in room temperature (20 ºC) was studied. Comparison of the results in different temperature (20 ºC and -40 ºC) provides a threshold of the structure’s behavior within the defined range.

L'Éveil du XXe : organe d'information locale édité par la section communiste

1941/05/01 (N14d).

L'Éveil du XXe : organe d'information locale édité par la section communiste

Variante(s) de titre : Éveil du vingtième (Paris)

L'Éveil du XXe : organe d'information locale édité par la section communiste

1941/05/01 (N14).

L'Éveil du XXe : organe d'information locale édité par la section communiste

1941/02/20 (N11).

L'Éveil du XXe : organe d'information locale édité par la section communiste

1943/08 (N1).