نتایج جستجو برای: haulage systems
تعداد نتایج: 1183556 فیلتر نتایج به سال:
Abstract Selective promotion entails the exploitation of resources offered by individual complementors to improve a proprietary platform’s competitive position. However, as governance decisions endorse particular complementor are made unilaterally, such is less suitable for shared platforms that ultimately owned and managed an ecosystem heterogeneous, autonomous complementors. We explore compat...
Municipal solid waste management (MSWM) is a critical administrative, environmental and financial issue in low-income countries, such as Pakistan, where collection efficiency less than 75% all urban areas, except Lahore. Therefore, it pertinent to develop practical decision-making tools enhance by local municipalities companies (WMCs). A tool/calculator, holistically measure analyze forecast ho...
The article presents the results of works concerning evaluation undeveloped deposits in Upper Silesian Coal Basin and an estimation hard coal reserves which can be developed by 2050. Evaluation was established on criterions choice their score determination. On basis obtained final after consultations with experts field mining, there were selected three areas amount about 1.99 Gt (billion metric...
Abstract The present article extends recent studies that ask what might else have been considered by Scott and Amundsen in planning their sledging operations to reach the South Pole during southern summer of 1911/12. Both were on cusp changes exploration methods had at hand significant knowledge from past expeditions. Scott’s preparations based British Arctic experiences using several haulage i...
In this paper we consider the problem of optimising the construction and haulage costs of underground mining networks. We focus on a model of underground mine networks consisting of ramps in which each ramp has a bounded maximum gradient. The cost depends on the lengths of the ramps, the tonnages hauled through them and their gradients. We model such an underground mine network as an edgeweight...
ABSTRACT: Accurate and visual information of working locations is vital for efficient resource planning and location-based scheduling of earthworks, which is missing in existing linear schedules. Thus, construction managers have to depend on subjective decisions for resources allocation and progress monitoring from location aspects. This has caused uncertainties in planning and scheduling, and ...
The transformation of the present haulage industry to a more sustainable system is a major challenge and a high priority in the political agenda. In the terrestrial freight market high hopes rely on the intermodal rail-road transport. However, intermodal transport is used for a rather small market segment of concentrated freight flows over long distances. This intermodal transport is based on t...
Existing linear scheduling methods for earthwork activities lack accurate scheduling locations in road construction projects. Project planners and construction managers largely depend on subjective decisions for the allocation of resources at correct locations. This has caused uncertainties in planning and scheduling, and consequently delays and cost overruns of projects. Accurate information o...
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