Results 111 to 120 of about 34,325 (227)

Study of the evolution of helium bubbles in helium-containing titanium films

Acta Physica Sinica, 2012
In this paper, the evolution of the He-related defects in the titanium film is experimentally investigated by combining slow positron beam analysis (SPBA) and transmission electron microscope (TEM) technique. The results indicate that small bubbles in the titanium film distribute uniformly at room temperature.
null Wang Kang, null Deng Ai-Hong, null Liu Li, null Li Yue, null Zhou Yu-Lu, null Hou Qing, null Zhou Bing, null Wang Shan-Lin   +7 more
openaire   +1 more source

Integrative Metabolomic and Transcriptomic Profiling Reveals the Chemical and Molecular Basis for Aroma Divergence in Isatis Fruits

Food Frontiers, Volume 7, Issue 3, May 2026.
Integrative metabolomic and transcriptomic analyses revealed the chemical and molecular basis of aroma divergence in fruits of three Isatis species. Distinct volatile profiles and 44 key aroma‐active compounds defined species‐specific sensory characteristics, while co‐expression analysis identified NAC transcription factors and lipid‐derived pathway ...
Rong Chen, Yan Qing, Xiaoshan Geng, Qiaoyun Cai, Lili Wang, Fanglin Liu, Huijun Cheng, Yude Peng, Chunfeng Tang, Huaxi Huang, Qin Liu   +10 more
wiley   +1 more source

Comparative study of helium bubbles, microstructure, and mechanical properties in the white bright band of SA508-3/52(M) dissimilar metal weld joints

Journal of Materials Research and Technology
After metallographic etching, unetched white bright bands (WBB) are evident in the SA508-3/52(M) dissimilar metal weld joints. The WBBs in both joint without a buttering layer (JWOBL) and joint with a buttering layer (JWBL) are composed of austenite ...
Xusheng Qian, Chuanzong Li, Ziyu Tian, Kejin Zhang, Hao Lu   +4 more
doaj   +1 more source

Influence of low-energy plasma treatment on physical and mechanical properties and structure of aluminium and its allows

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2009
Physical and mechanical properties and structural transformations of aluminium and its allows after treatment by the low-energy plasma for helium glow discharge are studied by several experimental methods.
V. A. Barvinok, A. V. Ryasnyi
doaj   +1 more source

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

Geological Journal, Volume 61, Issue 5, Page 1291-1309, May 2026.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu, Hongpeng Chen, Chenglu Li, Ye Wang, Tiesheng Li, Rigen Wu, Zengtao Li, Zhichao Song, Xiannan Zhu   +8 more
wiley   +1 more source

Distinguishing Terpene Structural Isomers With Dielectric Barrier Discharge Ionization (DBDI)‐Mass Spectrometry

Helvetica Chimica Acta, Volume 109, Issue 5, May 2026.
DBDI enables real‐time analysis of volatile terpenes and generates atmosphere‐dependent reagent ions that produce structure‐specific spectral patterns. By tuning humidity or dopant gases, DBDI‐MS differentiates terpene isomers that appear identical by EI.
Justine Raeber, Alina Begley, Annina Bovens, Ana Curavić, Christian Steuer   +4 more
wiley   +1 more source

Ultrasonic helium bubble chamber [PDF]

Ultrasonics, 1969
R. C. A. BROWN, H. J. HILKE, A. H. ROGERS   +2 more
openaire   +2 more sources

Tracking Microhydration of the NaCl Rocksalt Molecule by Quantum Chemical Calculations and Penning Ionization Electron Spectroscopy in Helium Nanodroplets

Small Structures, Volume 7, Issue 5, May 2026.
This study combines quantum chemical calculations and high‐resolution Penning ionization electron spectroscopy in helium nanodroplets to investigate NaCl microhydration. It reveals the transition from contact to solvent‐separated ion pairs and quantifies hydration shell completion at about 34 water molecules.
Ltaief Ben Ltaief, Keshav Sishodia, Robert Richter, Martí Pi, Manuel Barranco, Jussi Eloranta, Sivarama Krishnan, Florent Calvo, Marcel Mudrich   +8 more
wiley   +1 more source

Air Contamination and Mass Fractionation Correction in Groundwater From a Hydrocarbon System

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Noble gases are valuable geochemical tracers for investigating subsurface fluid origins and migration because of their chemical inertness and source‐specific isotopic ratios. However, subsurface water samples often show noble gas patterns that differ from air‐saturated water references, with excesses or depletions that complicate ...
S. Diniz, A. Battani, J. Scott, G. Galliero, S. Gilfillan, M. Pujol   +5 more
wiley   +1 more source

Molecular dynamics and machine learning study of tensile behavior in single-crystal tungsten containing He bubbles

Materials & Design
Tungsten is commonly used in nuclear fusion plants, where irradiation defects (e.g., He bubbles) are frequently generated. This study investigates the impact of He bubbles on the tensile behavior of single-crystal tungsten through molecular dynamics (MD)
Pan-dong Lin, Yan Lin, Hong-guang Li, Shu-gang Cui, Jun-feng Nie, Bai-wen Zhong, Yu-peng Lu   +6 more
doaj   +1 more source