Results 41 to 50 of about 339,601 (336)
Probing positron cooling in noble gases via annihilation $\gamma$ spectra [PDF]
, 2017 $\gamma$ spectra for positron annihilation in noble-gas atoms are calculated using many-body theory for positron momenta up to the positronium-formation threshold.
Green, D. G.
core +2 more sources
Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology
Advanced Engineering Materials, EarlyView.We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham +7 more
wiley +1 more source
Position resolution limits in pure noble gaseous detectors for X-ray energies from 1 to 60 keV
Physics Letters B, 2015 The calculated position resolutions for X-ray photons (1–60 keV) in pure noble gases at atmospheric pressure are presented. In this work we show the influence of the atomic shells and the detector dimensions on the intrinsic position resolution of the ...
C.D.R. Azevedo +6 more
doaj +1 more source
Frequency shifts in noble-gas magnetometers
, 2019 Polarized nuclei are a powerful tool in nuclear spin studies and in searches for beyond-the-standard model physics. Noble-gas comagnetometer systems, which compare two nuclear species, have thus far been limited by anomalous frequency variations of ...
Chupp, Timothy E. +7 more
core +2 more sources
Advanced Engineering Materials, EarlyView.This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira +4 more
wiley +1 more source
Characteristics of noble gases in the large Gaoshiti-Moxi gas field in Sichuan Basin, SW China
Petroleum Exploration and Development, 2014 Taking the large Gaoshiti-Moxi gas field of Sichuan Basin as an example, the total composition contents and isotopes of noble gases in the natural gases from the Sinian Dengying Formation and Cambrian Longwangmiao Formation are analyzed, and then their ...
Guoqi WEI +7 more
doaj +1 more source
Noble Gases Therapy in Cardiocerebrovascular Diseases: The Novel Stars?
Frontiers in Cardiovascular Medicine, 2022 Cardiocerebrovascular diseases (CCVDs) are the leading cause of death worldwide; therefore, to deeply explore the pathogenesis of CCVDs and to find the cheap and efficient strategies to prevent and treat CCVDs, these are of great clinical and social ...
Jiongshan Zhang +10 more
doaj +1 more source
Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres
Advanced Engineering Materials, EarlyView.This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann +3 more
wiley +1 more source
Research progress on methane combustion catalysts
能源环境保护, 2023 Methane as the main component of natural gas, has been widely used in power plants, natural gas automobiles, and the synthesis of numerous compounds. However, the leakage and emission of methane can induce severe environmental issues due to its strong ...
CAI Jieying +3 more
doaj +1 more source
Towards redistribution laser cooling of molecular gases: Production of candidate molecules SrH by laser ablation [PDF]
, 2013 Laser cooling by collisional redistribution of radiation has been successfully applied in the past for cooling dense atomic gases. Here we report on progress of work aiming at the demonstration of redistribution laser cooling in a molecular gas.
Moroshkin, Peter +4 more
core +1 more source