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Heat transfer through protective clothing under symmetric and asymmetric long wave thermal radiation

Abstract in French Cette etude reprend les resultats d'une recherche co-financee par la Communaute Europeenne sur les effets thermiques des vetements de protection et sur l'astreinte physiologique qui en resulte dans les conditions de travail. L'etude concerne l'infiuence de l'asymetrie de rayonnement thermique. L'echange thermique a ete mesure al'aide d'un mannequin calorimetrique sous l'influencThis report considers results of an ED funded research on thermal properties ofprotective clothing and their use in the assessment of the thermal strain at work. In order to study the effects of the asymmetry oflong wave thermal radiation on the heat transfer through protective clothing, the heat loss under all-side and unilaterally applied radiation with the same incident radiant power of 279 W/m

Modelling and Optimization Methods of Integrated Production Planning for Steel Plate Mill with Flexible Customization

With diversified requirements and varying manufacturing environments, the optimal production planning encountered in a steel mill became more flexible and also complicated. The flexibility can provide the operators with auxiliary requirements through an implementable integrated production planning. In this paper, a mixed-integer nonlinear programming (MINLP) model is formulated for the optimal pla

Dealing with Economic Stress Through Migration: Lessons from Nineteenth Century Rural Sweden

Preindustrial society was characterised by vast uncertainties due to harvest failures and fluctuations in prices of basic commodities. These economic fluctuations had severe effects on the standard of living, especially for the poorer segments of the population, as shown for instance, by the increased mortality following economic crises. This article examines the extent to which migration could be