Results 1 to 10 of about 429,142 (178)

Hygiene procedures of trucks transporting live pigs: multi-assessment validation of a standardized C&D protocol [PDF]

open access: yesFrontiers in Veterinary Science
Inadequately cleaned transport vehicles can act as reservoirs for pathogens jeopardizing pigs’ health status. Although effective cleaning and disinfection (C&D) of live-pig transport trucks is required by law, there is still no universally accepted ...
A. Perrucci   +6 more
doaj   +2 more sources

Valve-seat components in a diesel engine: a tribological approach to limit wear

open access: yesMechanics & Industry, 2021
Within diesel engines, the valve-seat contact is one of the few non-lubricated contacts which is subjected to significant degradation. This degradation is put in evidence by material removal at the intake valve.
Crozet Martial   +4 more
doaj   +1 more source

Simulation of Air Pollutants Emission by Trucks and Their Health Effects

open access: yesAtmosphere, 2022
This paper analyzes the amount of truck emissions and their variations according to changes in travel schedules or routes and the impact on human health represented by cases of Acute Respiratory Infections (ARI) due to PM2.5 emissions in Medellín ...
John Jairo Posada-Henao   +2 more
doaj   +1 more source

Results of the study of the relationship between the number of rolling stock units of freight road transport and gross regional products

open access: yesИнтеллект. Инновации. Инвестиции, 2022
Road transport is an important branch of the national economy. This is due to many of its advantages compared to other modes of transport, primarily high mobility and the ability to deliver goods “to the doorstep”.
I. I. Lyubimov   +2 more
doaj   +1 more source

Risk management in handling conveyors [PDF]

open access: yesTehnika, 2016
The paper will be presented all the aspects that need to be taken into account for the successful management of risks in handling conveyors, whose detailed examination and attention we achieve the maximum utilization of these funds, which inevitably ...
Milošević Novak D.   +1 more
doaj   +1 more source

Energy Efficiency of Heavy-Duty Vehicles in Mexico

open access: yesEnergies, 2022
The energy consumption of a large sample of vehicles (6955) operating during the last 3 years under everyday conditions across Mexico was monitored via OBD-based telematics systems.
Oscar S. Serrano-Guevara   +3 more
doaj   +1 more source

Twelve-hour before Driving Prevalence of Alcohol and Drug Use among Heavy Vehicle Drivers in South East of Iran Using Network Scale Up [PDF]

open access: yesAddiction and Health, 2019
Background: Heavy vehicle drivers spend a great deal of time away from their families. This issue and other difficulties around their job may increase risky behaviors among them.
Milad Ahmadi-Gohari   +3 more
doaj   +1 more source

On Bose-Einstein condensation on closed Robertson-Walker spacetimes [PDF]

open access: yes, 1998
In this letter we summarize our analysis of Bose-Einstein condensation on closed Robertson-Walker spacetimes. In a previous work we defined an adiabatic KMS state on the Weyl-algebra of the free massive Klein-Gordon field.
Dolgov   +8 more
core   +3 more sources

Experimental Investigation of Heat Transfer Rates and Pressure Drops through Compact Heat Exchangers

open access: yesInternational Journal of Automotive Engineering, 2015
This paper presents pressure drops and heat transfer rates for compact heat exchangers, where the heat exchangers are angled 90°, 60°, 30° and 10° relative to the incoming airflow.
Henriksson Lisa   +3 more
doaj   +1 more source

A KMS-like state of Hadamard type on Robertson-Walker spacetimes and its time evolution [PDF]

open access: yes, 1997
In this work we define a new state on the Weyl algebra of the free massive scalar Klein-Gordon field on a Robertson-Walker spacetime and prove that it is a Hadamard state.
Trucks, Mathias
core   +2 more sources

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