Non-azeotropic refrigerant mixtures (NARMs) are investigated for a twotemperature level heat exchange process found in a domestic refrigerator-freezer. Ideal (constant air temperature) heat exchange processes are assumed. The results allow the effects of intercooling between the evaporator refrigerant stream and the condenser outlet stream to be examined in a systematic manner. For the conditio...

Studies have suggested that children living close to busy roads may have impaired respiratory health. This study was designed to test the hypothesis that exposure to exhaust from heavy traffic in particular is related to childhood respiratory health. Children attending 24 schools located within 400 m from busy motorways were investigated. The motorways carried between 5,190 and 22,326 trucks pe...

Long-haul truck drivers in the United States experience elevated cardiovascular health risks, possibly due to hypercholesterolemia. The current study has two objectives: 1) to generate a cholesterol profile for U.S. long-haul truck drivers; and 2) to determine the influence of work organization characteristics and sleep quality and duration on cholesterol levels of long-haul truck drivers. Surv...

BACKGROUND Long-distance truck drivers are occupationally susceptible to poor health outcomes. Their patterns of healthcare utilisation and the suitability of healthcare services available to them are not well documented. We report on truck driver healthcare utilisation across South Africa and characterise the client population of the clinics serving them for future service development. METHO...

This article shows the application of the decision support system (DSS) Expertchoice© for pick-up truck selection in a colombian shipyard company. The article begins with a description of such decision support systems, followed by a market availability analysis of such systems, and finally presents the application of the DSS Expertchoice© for pick-up truck selection in the company studied.

The paper describes the results of the EC COPERNICUS-Project SADTS (= Semi-Active Damping of Truck Suspensions and its Influence on Drivers and Road Loads). This research project investigated the potential of semi-active truck suspensions optimised for road-friendliness. The improvements are compared to modern passive air springs.

Project Summary Report 2122-S – 1 – To facilitate cross-border traffic, the North American Free Trade Agreement (NAFTA) calls for harmonization of truck standards among the trade partners. Combined with the desire of U.S. industry to reduce freight costs, this aspect of NAFTA has stimulated interest in how liberalization of truck size and weight limits in the U.S. would affect highway infrastru...

We study a problem appearing at the end of a logistic stream in a warehouse and which concerns the timetabling of sorting slots necessary to accomodate the prepared orders before being dispatched. We consider a set of orders to be prepared on some preparation shops over a given time horizon. Each order is associated with the truck handling its transportation to its customer. A sorting slot is a...

In recent years, governments applied intelligent transportation system (ITS) technique to 8 provide several convenience services (e.g., garbage truck app) for residents. This study proposes a 9 garbage truck fleet management system (GTFMS) and data feature selection and data clustering 10 methods for travel time prediction. A GTFMS includes mobile devices (MD), on-board units, fleet 11 manageme...

BACKGROUND Associations between traffic pollution on the street of residence and a range of respiratory and allergic outcomes in children have been reported in developed countries, but little is known about such associations in developing countries. METHODS The third phase of the International Study of Asthma and Allergies in Childhood (ISAAC) was carried out in 13- to 14-year-old and 6- to 7...