Results 1 to 10 of about 61,837 (250)

Fault associated with the 1967 M 6.3 Koyna earthquake, India: A review of recent studies and perspectives for further probing

open access: yesJournal of Asian Earth Sciences: X, 2022
The Koyna region in western India, characterized by recurrent seismic activity over more than five decades and confined largely within a 20 km × 30 km area and ∼10 km in depth, is a classical site to study earthquake processes.
Kunal Modak   +4 more
doaj   +1 more source

Performance of the Wireline Heave Compensation System Onboard D/V JOIDES Resolution [PDF]

open access: yesScientific Drilling, 2013
No abstract available.
G. Iturrino   +13 more
doaj   +1 more source

The 2020 earthquake sequence and seismic hazard scenario of Mizoram state in northeast India

open access: yesFrontiers in Earth Science, 2022
The Mizoram state of India lies in close proximity to the active Indo-Burma subduction zone and had experienced several moderate to large earthquakes, including the M7 event in 1938. Since 2015, only two events with 5<M<6 have occurred in the area,
Brijesh K. Bansal   +2 more
doaj   +1 more source

Research progress of gas drainage boreholes sealing materials and matching technology in underground coal mine

open access: yesMeikuang Anquan, 2021
It was one of the hot spots that coal mine safety technicians were competing for studying the suitable sealing material and its matching technology for gas drainage and drilling with the characteristics of coal mine gas occurrence conditions fully ...
YAN Wenxue, CHENG Bo
doaj   +1 more source

Age–depth model of the past 630 kyr for Lake Ohrid (FYROM/Albania) based on cyclostratigraphic analysis of downhole gamma ray data [PDF]

open access: yesBiogeosciences, 2015
Gamma ray (GR) fluctuations and potassium (K) values from downhole logging data obtained in the sediments of Lake Ohrid from 0 to 240 m below lake floor (b.l.f).
H. Baumgarten   +8 more
doaj   +1 more source

Investigating the quality of groundwater in Ibeju-Lekki Local Government Area, Lagos State

open access: yesWater 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

Research on Dynamic Index of Coal Seams Area Based on Water Jet Slotting

open access: yesMeikuang 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

A Review of Potential Cementing Systems for Sealing and Support Matrices in Deep Borehole Disposal of Radioactive Waste

open access: yesEnergies, 2019
Cementitious grouts are being developed for use as sealing and support matrices (SSMs) in deep borehole disposal (DBD) where temperatures do not exceed 190 °C. They will seal radioactive waste containers into the bottom 2 km of holes drilled up to 5
Nicholas Charles Collier   +2 more
doaj   +1 more source

The Influence of Non-Engineered Municipal Landfills on Groundwater Chemistry and Quality in Bloemfontein, South Africa

open access: yesMolecules, 2020
This study assessed the groundwater quality around two municipal solid waste landfill sites, in the city of Bloemfontein, Free State Province, South Africa. The two landfill sites are located in two contrasting geological terrains, with both lacking some
Rinae Makhadi   +2 more
doaj   +1 more source

CONCENTRATION LEVELS OF PHYSICO-CHEMICAL PROFILES AND QUALITY ASSESSMENT OF GROUNDWATER: A CASE STUDY OF SOUTHERN IJAW, BAYELSA STATE, SOUTHERN NIGERIA [PDF]

open access: yesEngineering Heritage Journal, 2023
This study examined the concentration levels of physico-chemical profiles of groundwater quality of communities in Southern Ijaw Local Government Area of Bayelsa State, Nigeria. The seasonal variation of groundwater quality were evaluated.
Nwankwoala, H.O   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy