Results 51 to 60 of about 313,034 (335)
Helium Suicide, a Rapid and Painless Asphyxia: Toxicological Findings
Toxics, 2022 Suicide by helium inhalation has become increasingly common in the last few decades in Europe and the US because it produces a quick and painless death. Inhaled-gas suicides can easily be assessed through death scene investigation and autopsy.
Anna Carfora +7 more
doaj +1 more source
An evaluation of weld metal nitrogen retention and properties in 316NL austenitic stainless steel [PDF]
, 2011 A series of tests were conducted using varying levels of nitrogen and helium in a conventional argon shielding gas when welding 316LN austenitic stainless steel. The outcome was that a 15 per cent nitrogen addition to the argon shielding gas had the most
Baker, Thomas +2 more
core +1 more source
Advanced Functional Materials, EarlyView.Herein, the topochemical transformation of cobalt‐based layered hydroxides into nanocomposites is investigated using advanced real‐time characterization techniques combined with thermogravimetric analysis. The study reveals how interlayer carboxylic acids direct the transformation pathway, highlighting the role of carbon content and anion length. These
Camilo Jaramillo‐Hernández +5 more
wiley +1 more source
Comparison of helium source characteristics between geothermal water-dissolved type and natural gas-associated type: A case study of Weihe Basin and northern Ordos Basin [PDF]
Youqicang pingjia yu kaifaHelium is a rare inert gas with indispensable applications in defense, aerospace, and medicine. However, helium resources available for use in China are extremely limited. To date, no independently accumulated helium resources have been found.
ZHANG Jin, ZHANG Fengqi, ZOU Yanrong, REN Xiaoqing, CHEN Hongguo, WANG Pengtao, RU Rong, ZHANG Wen
doaj +1 more source
Helium gas evacuation in superconducting RFQ structure [PDF]
Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366), 2003 The PIAVE injector for the Legnaro Accelerator complex is an accelerating machine made of superconducting resonators. One of them, the superconducting RFQ, needs to be cooled by the helium bath on the whole outer surfaces. In particular the region of the electrode tips and the lower vertical electrode are involved in RF power dissipation and can have a
A. Lombardi +9 more
openaire +1 more source
Molecular Cross‐Linking of MXenes: Tunable Interfaces and Chemiresistive Sensing
Advanced Functional Materials, EarlyView.In this study, Ti3C2Tx MXenes are initially functionalized using oleylamine ligands to form stable dispersions in an organic solvent. Subsequently ligand exchange with α,ω‐diaminoalkanes enables cross‐linking, along with precise tuning of interfaces. This structural control translates into tunable charge transport and responsive VOC sensing, showing ...
Yudhajit Bhattacharjee +12 more
wiley +1 more source
Explanation of 100-fold reduction of spectral shifts for hydrogen on helium films
, 2008 We show that helium film-mediated hydrogen-hydrogen interactions account for a two orders of magnitude discrepancy between previous theory and recent experiments on cold collision shifts in spin-polarized hydrogen adsorbed on a helium film.
Erich J. Mueller +2 more
core +1 more source
Anomalous Stiffening of a Conjugated Polymer During Electrochemical Oxidation
Advanced Functional Materials, EarlyView.The electromechanical response of a thienothiophene‐based conjugated polymer with triethylene glycol side chains is investigated. Electrochemical nanoindentation and atomic force microscopy reveal a modest and reversible increase in elastic modulus at room temperature upon electrochemical oxidation.
Judith Pons i Tarrés +17 more
wiley +1 more source
Meitian dizhi yu kantanBackgroundHelium is identified as a scarce strategic resource, having found widespread applications in high-tech fields such as high-end manufacturing, aerospace, and national defense due to its stable chemical properties and low boiling point.
Jiarun LIU +4 more
doaj +1 more source
Temperature control of a cryogenic bath [PDF]
, 1972 Foreign gas introduced into vapor phase above liquid region cools cryogenic baths. Equipment consists of gas tank and cover of styrofoam. Helium is considered the best choice to produce cooling, though any gas with boiling point lower than that of bath ...
Asher, I. M.
core +1 more source