Lagrangian Systems with non-smooth constraints

The Lagrange-d'Alembert equations with constraints belonging to $H^{1,\infty}$ have been considered. A concept of weak solutions to these equations has been built. Global existence theorem for Cauchy problem has been obtained

Making Ends Meet: Getting and Spending in 2001 by Older People in France and the USA

The report analyzes budgets of older households based on data from official national surveys. Covering sources of income as well as major categories of expenditures, it gives insight into how countries differ in the ways older persons manage the financial aspects of daily living. French retirees have lower incomes than US retirees, but what they receive amounts to a larger share of GDP per capita than in the US -- 55.6% versus 32.0%. In particular, by comparing households headed by retirees with those headed by active employees, French retirees have a living standard more similar to that of the employed population than is true for American retirees. The study also examines sources of income and shows that labor income is a larger share of household receipts for retirees in the US. The growth of the older population has made age groups 65-74 and 75+ a significant consumer market in the European economy, as well as a potential labor source. Transportation, leisure, and health care have gained in importance. While the US, unlike France, has a significant drop in household income after age 75, the countries do not differ with respect to overall consumer expenditure in relation to age: both countries show a substantial decrease after 75. (Physical limitations reducing spending on leisure may be one factor). But older households in France spend half as much on health care as in the US owing to the coverage provided by the national health insurance program

Unemployment Insurance and Older Workers in the United States

People are living longer and healthier lives at the same time that layoffs are increasing and pension plans are being curtailed. As the era of longevity progresses, unemployment among older Americans is likely to be a growing problem. In addition to the traditional male workforce, a larger number of older women will have had substantially more work experience than was historically true. Among women without spousal support (the single, widowed, and divorced), many will find that they must remain employed if they are to meet their financial needs

Modélisation du comportement thermomécanique des alliages à mémoire de forme

Description générale du comportement mécanique des AMF -- Superélasticité -- Effet de mémoire de forme -- Analogies avec le comportement plastique -- Transfert de chaleur -- Choix des variables d'état et leurs associées -- Variables microscopiques -- Variables macroscopiques -- Modélisation des cycles partiels -- Mouvement de dislocation et effet de fatigue -- Variations du volume -- Construction d'un potentiel thermodynamique -- Lois d'évolution des variables d'état et de l'énergie de dissipation -- Introduction à l'article "Coupled thermomechnical model for shape memory alloys" -- Modèle thermomécanique couplé en application pour des alliages à mémoire de forme -- Thermal phenomena in SMA behavior -- Numerical simulation -- Validation -- Introduction à l'article "Material law for NITI shape memory alloys based on dual driging interpolation " -- Lois d'état pour les alliages à mémoire de forme approximées par le krigeage dual -- Parametric modeling usins three-dimensional driging

Validation des modèles de flammelettes instationnaires en combustion turbulente non-prémélangée

Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal