In the cold season, irregular coal supplies to coke plants are aggravated by need heat cars. Thawing of rail cars in garages (enclosures) is least efficient and most expensive approach. Treatment concentrates with chemical additives reliably prevents freezing winter during transit from suppliers consumers. With a view finding new reagents for preventing winter, lime, acetates chlorides alkaline...

A questionnaire concerning musculoskeletal symptoms (MSS) and working environment was answered by 100% of 103 car mechanics in 12 different garages. Almost all the mechanics had been troubled with MSS at work the past year. The most common MSS were symptoms from the low back, neck, head and shoulders. When asked which symptoms had been most troublesome at work most mechanics reported symptoms f...

The four major hurricanes that struck Florida during August 13-September 25, 2004, produced electric power outages in several million homes. After the hurricanes, the Consumer Product Safety Commission (CPSC) investigated six deaths in Florida attributed to carbon monoxide (CO) poisoning (CPSC, unpublished data, 2004). The Florida Department of Health and CDC analyzed demographic and CO exposur...

Distribution of the goods from a producer to a customer is one of the most important tasks of transportation. This paper focuses on the usage of genetic algorithms (GA) for optimizing problems in transportation, namely vehicle routing problem (VRP). VRP falls in the field of NP-hard problems, which cannot be solved in polynomial time. The problem was solved using genetic algorithm with two type...

A heuristic procedure is developed to assign buses to transit centers (garages) in such a way that all the buses on a particular route are assigned to a single transit center. This research builds on an optimal mixed integer programming location/allocation model that splits the bus assignments when capacity limitations were reached at a transit center. The heuristic procedure adopts a two-step ...

OBJECTIVE On the basis of the job demands-control-support model by Karasek and Theorell, we investigated how social and organizational factors influence workers' use of personal protective equipment (PPE). METHODS A cross-sectional study was performed among 1420 workers in 203 motor vehicle-repair garages. Multilevel modeling was performed to account for the hierarchical structure of the data...

Garages and auto-repair workshops may be polluted with other heavy metals besides lead. Blood of autoworkers with high lead content was analysed for cadmium, chromium, copper manganese, nickel, ALAD activity and carboxyhaemoglobin level. Cadmium and copper levels in blood of autoworkers were comparable with those of the control subjects while chroimium and nickel levels were significantly highe...

According to literature data, some of the main factors which significantly affect the quality of the indoor environment in residential households or apartments are human activities such as cooking, smoking, cleaning, and indoor exercising. The paper presents a literature overview related to air quality in everyday use spaces dedicated to specific purposes which are integral parts of residential...