enable us to undertake the building of roads in the more hilly sections of the county. One shovel and the necessary trucks and graders will be used on construction, while the other shovel and the remainder of the trucks will be free for loading and hauling the much-needed material required for maintain­ ing the remainder of our roads. Thus we expect in the coming year to give better service to ...

This study identified specific regional risk factors for the high rate of pediatric pedestrian trauma in Florida. Of the 29 cases studied prospectively, 3 (10%) occurred near ice cream trucks and 13 (45%) involved "dart-outs"; mean hospital charges were 24,478 +/- 43,939 US dollars. Recommendations included an engineering change for a dangerous intersection, and a population-based recommendatio...

<p>A prestressed concrete bridge was built in 1963 with BBRV cables. It has three spans and a total length of 134.8 m. Due to mining activities the loaded trucks weight 90 ton during 2012-2014 from 2019. Crack development been monitored manually 2020 strain gauges LVDTs. Cracks normally vary between 0.1 0.3 mm width grow time. In November some on showed alarming growth closed for traffic....

A local municipality has decided to build a sewage pit to receive residential sewage waste arriving by tank trucks. Daily accumulated waste are to be pumped to a nearby waste water treatment facility to be re-consumed for agricultural and construction projects. A discrete-event simulation model using Arena Software was constructed to assist in defining the capacity of the system in cubic meters...

The coal industry contributes significantly to the social economy, but emission of greenhouse gases puts huge pressure on environment in process mining, transportation, and power generation. In integrated energy system (IES), current research about power-to-gas (P2G) technology mainly focuses injection hydrogen generated from renewable electrolyzed water into natural gas pipelines, which may ca...

Purpose.The aim of the study is to develop recommendations for reducing probability accidents during transportation rock by dump trucks based on analysis consequences changes in psycho-physiological states driver. Methods. The used method “Hazard and operability studies” “Failure Mode Effects Analysis” including organizational, logical mathematical, statistical procedures aimed at obtaining exp...

Abstract
 
 South Kalimantan is one of the largest coal exporters in Indonesia, which every year experiences an increase demand. Good business strategy planning needs to be a concern for mining owners, so that production targets can met. This study aims able provide recommendations travel scenarios hauling trucks Kalimantan. These are designed by considering results analysis time and ...

The purpose of this paper is to develop a methodology to evaluate the feasibility of using landfill gas (LFG) as a liquefied natural gas (LNG) fuel source for heavy-duty refuse trucks operating on landfills. Using LFG as a vehicle fuel can make the landfills more self-sustaining, reduce their dependence on fossil fuels, and reduce emissions and greenhouse gases. Acrion Technologies Inc. in asso...

Diesel trucks are major contributors of nitrogen oxides (NOx) and primary particulate matter smaller than 2.5 μm (PM2.5) in the transportation sector. However, there are more obstacles to existing estimations of diesel-truck emissions compared with those of cars. The obstacles include both inappropriate methodology and missing basic data in China. According to our research, a large number of tr...

Truck and shovel operations comprise approximately 60% of the total operating costs in open pit mines. In order to increase productivity and reduce the cost of mining operations, it is essential to manage the equipment used with high efficiency. In this work, the chance-constrained goal programing (CCGP) model presented by Michalakopoulos and Panagiotou is developed to determine an optimal truc...