Results 51 to 60 of about 16,326,882 (286)
The size distribution characteristics of fragments formed after loose blasting in open-pit mine will directly affect the economic benefits of the mining enterprise.
Xiaohua Ding +7 more
doaj +1 more source
Optimisation of open pit mine block sequencing [PDF]
This study presents a comprehensive mathematical model for open pit mine block sequencing problem which considers technical aspects of real-life mine operations.
Mousavi Nogholi, Amin Alah
core
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro +7 more
wiley +1 more source
Inspection method and analysis of the effect of water cutoff curtain in open-pit coal mine
In order to reduce the water drainage of the studied open-pit mine, a curtain wall was constructed to cut off the river supply on the north side. According to the site construction conditions, four technologies were applied to construct the water cutoff ...
Hai, WANG +3 more
core +1 more source
Stability Assessment of Hesigewula Open-pit Coal Mine Based on Geomorphic Information Entropy of Watershed System [PDF]
[Objective] The stability evaluation of an open-pit mining area was carried out in order to provide technical support for landform remodeling, ecological environment restoration, and soil erosion monitoring in a mining area.
Zhao Shuixia +6 more
core +1 more source
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo +5 more
wiley +1 more source
Characterising the acid mine drainage potential of fine coal wastes [PDF]
Includes bibliographical references.Acid mine drainage (AMD) is one of the major environmental challenges facing the South African mining sector. Acid mine drainage has received significant public attention in recent years.
Kotelo, Lerato Olga
core +1 more source
Early evolution of the gular musculature and its innervation in ray‐finned fishes
Abstract Gular muscles are an important but often overlooked component of cranial anatomy in bony fishes. They are located on the ventral surface of the head and are derived from the mandibular and hyoid arches. We present a comprehensive review of the gular musculature and its innervation across early diverging actinopterygian lineages. By integrating
Aléssio Datovo +4 more
wiley +1 more source
Analysis and control of slope stability of end wall coal mining in Anjialing Open-pit Mine
In order to solve the coal pressing problem of the end-to-boundary slope of Anjialing Open-pit Mine, combined with the actual situation of the north slope to the boundary of Anjialing Open-pit Mine, the sensitivity between the mining height, the overall ...
HOU Chengheng
core +1 more source
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson +2 more
wiley +1 more source

