Results 31 to 40 of about 502,130 (248)
Production of a Fermi gas of atoms in an optical lattice
, 2003 We prepare a degenerate Fermi gas of potassium atoms by sympathetic cooling with rubidium atoms in a one-dimensional optical lattice. In a tight lattice we observe a change of the density of states of the system, which is a signature of quasi two ...
B. Damski +19 more
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Studies of natural gas production prediction and risk assessment for tight gas in Sichuan Basin
Frontiers in Earth Science, 2023 After a new round of tight gas geological evaluation was launched in 2018, a new chapter of tight gas exploration and development has been opened in the Sichuan Basin.
Haitao Li +4 more
doaj +1 more source
Geofluids, 2022 Although significant progress has been made in tight gas exploration and development, there is still a limited understanding of the gas accumulation mechanism in tight formation.
Lin Jiang +5 more
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Tight Gas Potential Status, Obstacles and the Way Forward in Meeting Future Energy Needs of Pakistan
Mehran University Research Journal of Engineering and Technology, 2021 Production from unconventional tight gas resources plays significant role in energy market. It is commonly held that the tight gas has gained considerable importance in meeting energy needs and is widely developed across the world.
Aftab Ahmad Mahesar +2 more
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The Economic and Budgetary Effects of Producing Oil and Natural Gas From Shale [PDF]
, 2014 [Excerpt] Recent advances in combining two drilling techniques, hydraulic fracturing and horizontal drilling, have allowed access to large deposits of shale resources—that is, crude oil and natural gas trapped in shale and certain other dense rock ...
Congressional Budget Office
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Understanding chemical evolution in resolved galaxies -- I The local star fraction-metallicity relation [PDF]
, 2015 This work studies the relation between gas-phase oxygen abundance and stellar-to-gas fraction in nearby galaxies. We first derive the theoretical prediction, and argue that this relation is fundamental, in the sense that it must be verified regardless of
Ascasibar, Y. +5 more
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FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
EnergiesThis study develops a thermo-mechanical damage (TMD) model for predicting damage evolution in heterogeneous rock materials after heat treatment. The TMD model employs a Weibull distribution to characterize the spatial heterogeneity of the mechanical ...
Juan Jin +6 more
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Cell wall target fragment discovery using a low‐cost, minimal fragment library
FEBS Letters, EarlyView.LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan +5 more
wiley +1 more source
Geofluids, 2022 Interbedded sandstones, shales, and coal seams were formed in marine-continental transitional environments of coal measures, and the gas source of its tight sand gas has been uncertain, which hinders the progress of natural gas exploration.
Zengqin Liu +5 more
doaj +1 more source