Results 41 to 50 of about 14,170 (290)
Comparison of Presplit and Smooth Blasting Methods for Excavation of Rock Wells
Shock and Vibration, 2019 To understand differences of smooth and presplit blasting for the excavation of rock wells, two field experiments using these two techniques are implemented at the same test site, respectively.
Zilong Zhou +4 more
doaj +1 more source
Research progress on biomarkers of traumatic brain injury
Animal Models and Experimental Medicine, EarlyView.Traumatic brain injury: From primary insult to secondary neuroinflammation and degeneration. Abstract Traumatic brain injury (TBI) is a common disorder of the nervous system and has become a leading cause of death and disability worldwide, imposing a substantial burden on patients and their social circles. Its main symptoms include dyskinesia, language
Xuting Shen +8 more
wiley +1 more source
Blasting effects of the borehole considering decoupled eccentric charge
Alexandria Engineering JournalThe investigation of the blasting effects of the borehole considering decoupled eccentric charge is scarce and lacks thorough exploration. The coupled Smoothed Particle Hydrodynamics and Finite Element Method (SPH-FEM) is adopted to study the decoupled ...
Zhen Zhang +4 more
doaj +1 more source
The power of many: when genetics met yeasts and high‐throughput
Biological Reviews, EarlyView.ABSTRACT In recent years, complex technological capabilities have evolved, driven by the need to solve complex and integrative biological questions through global analyses. New equipment allows the scaling up and automation of processes which previously were carried out on a very limited scale.
Víctor A. Tallada, Víctor Carranco
wiley +1 more source
Research on blasting cumulative dynamic damage of surrounding rock in step construction tunnel
Scientific Reports, 2023 In the process of cyclic blasting during tunnel excavation, the reserved surrounding rock sustains irreparable damage accumulation. For safe tunnel construction, it is imperative to understand the characteristics of blasting dynamic cumulative rock ...
Yaozhong Cui +3 more
doaj +1 more source
Development of natural underground ore mining technologies in energy distributed massifs [PDF]
, 2019 The object of research is the technology and facilities for underground mining of ores in the disrupted massifs. One of the most problematic places is the formation of man-made voids; which influence the occurrence and redistribution of stress-strain ...
Golik, V. +3 more
core +4 more sources
Application Analysis of Blasting Construction in Tunnel Excavation
Academic Journal of Science and Technology, 2023 This article combines the engineering background and relies on geological conditions and blasting construction methods to briefly analyze the necessity of applying tunnel blasting construction technology and the influencing factors of the rear support structure of the palm face.
openaire +1 more source
Post‐LECA Origin and Diversification of an Axonemal Outer Arm Dynein Motor
Cytoskeleton, EarlyView.ABSTRACT Dyneins were present in the last eukaryotic common ancestor (LECA) and play key roles in eukaryotic biology. Axonemal dyneins form the inner and outer arms that power ciliary beating, and it has long been recognized that outer arms in some organisms contain two different heavy chain motors, whereas those from other species contain a third unit
Stephen M. King
wiley +1 more source
Geomatics, Natural Hazards & Risk, 2021 Based on Beishan Exploration Tunnel (BET), the blasting test has been carried out and studied deeply, especially the blasting vibration velocity and excavation damaged zone (EDZ) have been monitored immediately along the blasting cycles.
Ke Man, Xiaoli Liu, Zhifei Song
doaj +1 more source
Preliminary assessment of roadheaders efficiency based on empirical methods and index of equivalent rock strength [PDF]
, 2019 Purpose. The choice of a proper roadheader is a critically important step in planning of a project or some of its stages. Nowadays various manufacturers produce numerous models of these vehicles, hence it is unreasonable to conduct a thorough analysis of
Averin, E +4 more
core +1 more source