Results 51 to 60 of about 2,118 (255)

“Seven in one” effect inspection method system of water cut-off curtain in open-pit coal mine

Meikuang Anquan, 2023
In order to realize green, safe and efficient mining in open-pit coal mines, water cut-off curtain as a new technology of energy saving, carbon reduction and water conservation, has been continuously applied to open-pit coal mines. The cut-off curtain of
ZHANG Yan
doaj   +1 more source

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

Management plan of geological hazard threats in the fault zone of adjacent open-pit mines

Meitan kexue jishu
In the development of large-scale open-pit coal fields in China, there are often several Coal companies entering the same coal field, and each Coal company is a main body of development, mining coal resources in the state-allocated strip area, and ...
Guangwei LIU, Junxiong TU, Xianshuai MA, Yong YAO, Liang WANG, Meiling ZHAO   +5 more
doaj   +1 more source

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

The Anatomical Record, EarlyView.
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, Jeffrey A. Wilson Mantilla, Jhonata H. A. Martins, Fabiano V. Iori, Leonardo S. Paschoa, Alberto B. Carvalho, Joseli M. Piranha, Hussam Zaher   +7 more
wiley   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
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, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source

Testing and selection of ad hoc protocol for proximity vehicle test in open-pit coal mine

Gong-kuang zidonghua, 2018
The paper pointed out that GPS integrated wireless communication technology is most suitable for application of proximity vehicle detection in open-pit coal mine on the basis of analyzing existing proximity vehicle testing technologies, such as ...
WANG Yin, SHI Yanfeng, HU Shengbo
doaj   +1 more source

Early evolution of the gular musculature and its innervation in ray‐finned fishes

The Anatomical Record, EarlyView.
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, Paulo Presti, George Vita, Murilo N. L. Pastana, Luiz A. W. Peixoto   +4 more
wiley   +1 more source

Stability control mining method of soft rock slope in composite coal seam open-pit mine: a case study of Baiyinhua No.1 open-pit coal mine

Meitan kexue jishu
Rational slope stability-controlled mining method can effectively ensure the safety and stability of open-pit mine slopes, facilitate seamless production capacity transition, and enhance the economic benefits of mining areas. The Baiyinhua No. 1 open-pit
Weiqiang GUO, Hui ZHANG, Hongge TONG, Junxiong TU, Guangwei LIU, Huizhong ZHU, Zuchao LIANG, Jie YUAN, Yu BAI, Mingyu YU, Hao LUO   +10 more
doaj   +1 more source

Dynamics of development the works of roof coal series of the open pit Gacko by the software Gemcom Gems: Module cut evaluation [PDF]

Mining and Metallurgy Engineering Bor, 2016
This work presents a method of determining the dynamics of development the open pit Gacko in the zone roof coal series with the annual capacity 3∙106 t/year of run-of-mine coal using the module cut evaluation of the software package Gemcom Gems. Defining
Stanić Nikola, Doderović Aleksandar, Stepanović Saša, Gomilanović Miljan   +3 more
doaj   +1 more source

Coal and Open-pit surface mining impacts on American Lands (COAL)

, 2018
COAL is a Python library for processing hyperspectral imagery from remote sensing devices such as the Airborne Visible/InfraRed Imaging Spectrometer (AVIRIS). COAL was originally developed as a 2016 – 2017 senior capstone collaboration between scientists at the Jet Propulsion Laboratory (JPL) and computer science students at Oregon State ...
McGibbney, Lewis, Brown, Taylor Alexander, Clayton, Heidi Ann, Wang, Xiaomei, Whitehall, Kim   +4 more
openaire   +1 more source