Journal of Applied Sciences and Environmental Management, 2020 The consumption of unsafe water is detrimental to human health. It is therefore important to ascertain the quality and purity of water set out for drinking.
W.A. Raji, C.E. Anih, P.O. Obeta
doaj
Deep Underground Science and Engineering, EarlyView.An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang +5 more
wiley +1 more source
Physico-Chemical and Heavy Metal Profiles of Marine, Borehole and Sea Water
Dev Sanskriti: Interdisciplinary International Journal, 2018 The extent of water pollution on some rivers and lagoons within Badagry and its environs in Lagos State Nigeria has been critical analyzedwith respect to the physico-chemical properties of the surface and underground waters and the results show that ...
Madu, A. N., Uzoma, Agbasi, U. M.
doaj +1 more source
Research on Dynamic Index of Coal Seams Area Based on Water Jet Slotting
Meikuang Anquan, 2020 Based on the water jet slotting coal seam permeability increase technology, the stress distribution state of the coal after slotting is analyzed, and the radial and tangential stresses of the slotted borehole are calculated.
LIU Jian, JIANG Wenzhong, REN Zhongjiu, LIU Ziwen
doaj +1 more source
Investigating the quality of groundwater in Ibeju-Lekki Local Government Area, Lagos State
Water Science, 2023 This study assessed the groundwater quality in the rapidly urbanizing peri-urban region of the Ibeju-Lekki Local Government Area in Lagos State, Nigeria, during the rainy season. This study employed a two-stage sampling technique to select representative
Chiemeka Henry Ezechinyere +1 more
doaj +1 more source
Active-distributed temperature sensing to continuously quantify vertical flow in boreholes [PDF]
, 2014 We show how a distributed borehole flowmeter can be created from armored Fiber Optic cables with the Active-Distributed Temperature Sensing (A-DTS) method.
Banks +29 more
core +5 more sources
Deep Underground Science and Engineering, EarlyView.Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei +4 more
wiley +1 more source
Geology of the Brewood area, 1:10000 sheet SJ80NE : part of 1:50000 sheet 153 (Wolverhampton) [PDF]
, 1998 This report describes the geology of 1:lO 000 sheet SJ 80 NE (Brewood) which is included in 1 :50 000 Geological Sheet 153 (Wolverhampton) (Figure 1).
Hough, E.
core
Deep Underground Science and Engineering, EarlyView.A novel shear‐lag model, validated by pull‐out tests, incorporates a constant bond stress stage to predict the complete load–displacement response of grouted rock bolts, providing a new tool for optimizing anchorage length and material toughness in deep underground engineering. Abstract The stability of rock masses in deep underground excavations, such
Wenhui Bian +6 more
wiley +1 more source
The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +3 more sources