Results 51 to 60 of about 262,239 (276)
Deep Underground Science and Engineering, EarlyView.This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang +5 more
wiley +1 more source
Evaluation of uranium migration during the maturation of hydrocarbon source rocks
Scientific ReportsThe source of uranium is an important research topic related to the exploration of sandstone-type uranium deposits, and potential uranium sources in deep basins are often overlooked.
Junxian Wang +6 more
doaj +1 more source
An Improved YOLOv8 Network for Detecting Electric Pylons Based on Optical Satellite Image
SensorsElectric pylons are crucial components of power infrastructure, requiring accurate detection and identification for effective monitoring of transmission lines. This paper proposes an innovative model, the EP-YOLOv8 network, which incorporates new modules:
Xin Chi +5 more
doaj +1 more source
Uranium isotopes quantitatively determined by modified method of atomic absorption spectrophotometry [PDF]
, 1967 Hollow-cathode discharge tubes determine the quantities of uranium isotopes in a sample by using atomic absorption spectrophotometry. Dissociation of the uranium atoms allows a large number of ground state atoms to be produced, absorbing the incident ...
Lee, G. H.
core +1 more source
Antineutrino Geophysics with Liquid Scintillator Detectors [PDF]
, 1997 Detecting the antineutrinos emitted by the decay of radioactive elements in the mantle and crust could provide a direct measurement of the total abundance of uranium and thorium in the Earth.
Avilez +28 more
core +2 more sources
Deep Underground Science and Engineering, EarlyView.The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng +7 more
wiley +1 more source
LEACHING OF URANIUM DEPOSITS IN MONGOLIA [PDF]
, 2018 The paper outlines the results of field, laboratory, and theoretical studies on geotechnical parameters of uranium in-situ leaching (ISL) for hydrogenous deposits located in eastern Mongolia.
KHOMENKO, Oleh +5 more
core
CO2 conversion to phenyl isocyanates by uranium(vi) bis(imido) complexes. [PDF]
, 2020 Uranium(vi) trans-bis(imido) complexes [U(κ4-{(tBu2ArO)2Me2-cyclam})(NPh)(NPhR)] react with CO2 to eliminate phenyl isocyanates and afford uranium(vi) trans-[O[double bond, length as m-dash]U[double bond, length as m-dash]NR]2+ complexes, including [U(κ4-
Bandeira, Nuno AG +4 more
core +1 more source
Functionalization of chitosan with 3,4-dihydroxybenzoic acid for the adsorption/collection of uranium in water samples and its determination by inductively coupled plasma-mass spectrometry [PDF]
, 2007 A chitosan resin derivatized with 3,4-dihydroxybenzoic acid moiety (CCTS-DHBA resin) was newly synthesized for the collection/concentration of trace uranium by using cross-linked chitosan (CCTS) as base material, and the adsorption behavior of uranium as
Gao, Yun Hua +6 more
core +1 more source
Engineered Metal–Organic Frameworks‐Based Materials for Environmental Detection
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Engineered metal–organic frameworks (MOFs) regulated by various material modification strategies are discussed for environmental contaminant detection under different sensing mechanisms, providing future improvements of MOFs in environmental detection. Sensitive and selective detection of contaminants is crucial for environmental protection.
Pan Gao +3 more
wiley +1 more source