Results 91 to 100 of about 16,961 (284)
New dimension in hard roof management
, 2001 Extraction of coal under hard roof is a difficult task; Strata control problems like spalling of coal, overriding of pillars, air blast in bord & pillar workings and collapses of faces in longwall are common phenomena in Indian Coalfields.
Banerjee, G., Ray, A.K.
core
In the process of mining, a large area of hard roof will be exposed above a goaf and may suddenly break. This can easily induce rock burst and has a significant impact on production safety.
Chungang Wang +3 more
core +1 more source
The Numerical Simulation of the Pressure Law and Control of the Hard Roof Face in the Far Field
, 2023 Controlling hard roof plate breakage and destabilization to ensure a sufficient mine pressure is difficult using conventional underground pressure relief methods, since it is located far above the coal seam.
Yuyang Wei +4 more
core +1 more source
Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny
The Anatomical Record, EarlyView.Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund +4 more
wiley +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 +4 more
wiley +1 more source
, 2017 This paper presents the engineering geological properties and roof control tecnology for a thick coal seam fully-mechanized face mining with hard roof conditions (THC) at the Jinhuagong Coal Mine (JCM), northwest China.
Wei-bin Guo +4 more
core +1 more source
Innervation of the tubarial glands: A hypothesis‐driven anatomical review
The Anatomical Record, EarlyView.Abstract The tubarial glands have been described as a macroscopic bilateral glandular complex in the posterolateral nasopharynx near the torus tubarius and the pharyngeal opening of the Eustachian tube. Since their recognition on prostate‐specific membrane antigen‐based imaging, their anatomical classification has remained debated, with converging ...
Mugurel Constantin Rusu +2 more
wiley +1 more source
Archaeology in Oceania, EarlyView.ABSTRACT In this paper we report on faunal remains recovered from a legacy archaeological excavation undertaken in the rockshelter entrance of Waribruk (New Guinea II Cave), a GunaiKurnai site located on the west bank of the Snowy River, East Gippsland, southeastern Australia.
Matthew C. McDowell +7 more
wiley +1 more source
, 2023 A hard roof can cause serious issues corelated with the stability of the panel including large deformation of the roadway in the gob, rock burst, coal and gas outbursts, etc. Currently, hydraulic fracturing has ever-increasingly been used to help control
Junchao Chen +3 more
core +1 more source
Arthroscopy, EarlyView.Purpose To quantitatively assess intercondylar notch morphometrics using 3‐dimensional computed tomography reconstruction, evaluate their association with anterior cruciate ligament (ACL) injury in Asian populations, and investigate the prevalence of osteophytes in patients with ACL injury.
Xiaozhong Ma +9 more
wiley +1 more source