Results 41 to 50 of about 502,130 (248)
High-temperature ceramic-to-ceramic seals [PDF]
, 1972 Noble-metal braze applied to appropriately prepared zirconia parts produces a gas-tight, durable seal that can withstand temperature of 825 C for over 2000 hours without ...
Smart, W.
core +1 more source
Valley Splitting Theory of SiGe/Si/SiGe Quantum Wells
, 2006 We present an effective mass theory for SiGe/Si/SiGe quantum wells, with an emphasis on calculating the valley splitting. The theory introduces a valley coupling parameter, $v_v$, which encapsulates the physics of the quantum well interface.
Charles Tahan +14 more
core +1 more source
FEBS Letters, EarlyView.This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel +13 more
wiley +1 more source
Observation of a two-dimensional Fermi gas of atoms
, 2010 We have prepared a degenerate gas of fermionic atoms which move in two dimensions while the motion in the third dimension is "frozen" by tight confinement and low temperature.
Makhalov, Vasiliy +2 more
core +1 more source
Unconventional gas: potential energy market impacts in the European Union [PDF]
, 2012 In the interest of effective policymaking, this report seeks to clarify certain controversies and identify key gaps in the evidence-base relating to unconventional gas.
ALECU Corina +11 more
core +1 more source
Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity
Molecular Oncology, EarlyView.Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung +17 more
wiley +1 more source
Soluble Models of Strongly Interacting Ultracold Gas Mixtures in Tight Waveguides
, 2007 A generalized Fermi-Bose mapping method is used to determine the exact ground states of several models of mixtures of strongly interacting ultracold gases in tight waveguides, which are generalizations of the Tonks-Girardeau (TG) gas (1D Bose gas with ...
A. Minguzzi +2 more
core +2 more sources
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
Automatic inversion of fracture parameters in tight gas reservoirs based on gas production profile [PDF]
Youqicang pingjia yu kaifaAccurately determining hydraulic fracture parameters is crucial for guiding the design of fracturing treatments and predicting single-well production.
XIAO Honglin, BU Chunliang, HOU Fu, TANG Huiying, WANG Yiyun, LUO Shangui
doaj +1 more source
Frontiers in Earth Science, 2022 Natural gas in the tight sandstone reservoirs in Member two of the Upper Triassic Xujiahe Formation in the Western Sichuan Depression of the Sichuan Basin has complex geochemical characteristics, and the origin and source of the tight gas are revealed ...
Xiaoqi Wu +10 more
doaj +1 more source