Results 91 to 100 of about 313,034 (335)

6D Muon Ionization Cooling with an Inverse Cyclotron

, 2005
A large admittance sector cyclotron filled with LiH wedges surrounded by helium or hydrogen gas is explored. Muons are cooled as they spiral adiabatically into a central swarm. As momentum approaches zero, the momentum spread also approaches zero.
Bracker, S. B., Cremaldi, L. M., Godang, R., Palmer, R. B., Summers, D. J.   +4 more
core   +2 more sources

Structural Exploration of Zirconium Metal–Organic Frameworks Through Linker Desymmetrization and Modulator Compensation

Advanced Materials, EarlyView.
A linker‐desymmetrization‐modulator‐compensation (LDMC) strategy for constructing structurally diverse Zr‐MOFs is reported. This approach reduces linker symmetry to create defects in Zr‐clusters, which can be compensated for by modulator coordination. Using this approach, we synthesized PCN‐1005 and PCN‐1006, featuring unprecedented Zr‐clusters. In PCN‐
Rong‐Ran Liang, Kun‐Yu Wang, Zongsu Han, Kui Tan, Yihao Yang, Zhaoyi Liu, Joshua Rushlow, Jiatong Huo, Hong‐Cai Zhou   +8 more
wiley   +1 more source

Highly Selective Adsorption of Fluorinated Gases by Porous Organic Cages – Effects of Fluorinated Side‐Chains

Advanced Materials, EarlyView.
A systematic study of a series of porous organic cages with perfluorinated alkyl side‐chains of different lengths is presented. The structure‐property relationship of the various cages on gas sorption of highly potent greenhouse gases, such as perfluorocarbons (PFCs), sulfur hexafluoride (SF6), and nitrogen trifluoride (NF3) is investigated.
Ke Tian, Wen‐Shan Zhang, Anjana Kunhumbadukka Othayoth, Moritz Philip Schuldt, Francesco Walenszus, Frank Rominger, Rasmus R. Schröder, Sven Michael Elbert, Michael Mastalerz   +8 more
wiley   +1 more source

Tritium trick [PDF]

Large controlled amounts of helium in uniform concentration in thick samples can be obtained through the radioactive decay of dissolved tritium gas to He3.
Eash, D. T., Green, W. V., Zukas, E. G.
core   +1 more source

Metastable Ordered Mesoporous h‐LuFeO3 Thin Films Prepared by Soft‐Templating: Optical, Electronic, and Magnetic Properties

Advanced Materials Interfaces, EarlyView.
An intriguing design concept for the preparation of metastable mesoporous h‐LuFeO3 thin films and powders by soft‐templating is presented. The hexagonal rather than the orthorhombic phase is formed due to the presence of a polymer structure‐directing agent in the synthesis.
Christian Suchomski, Christian Reitz, Vipin Kumar, Igor Djerdj, Marcus Einert, Torsten Brezesinski, Bernd Smarsly   +6 more
wiley   +1 more source

Genesis, source, and enrichment factors of helium in Qingyang gas field, Ordos Basin

Energy Exploration & Exploitation
Helium is a strategic and scarce resource. The enrichment mechanism of helium-rich gas reservoirs has become a research hotspot in the global energy field. This article takes the Qingyang gas field in the Ordos Basin as a case study.
Yue Chen, Shizhen Tao, Jianrong Gao, Yiqing Yang, Rui Kang, Yanyan Chen, Xiangbai Liu   +6 more
doaj   +1 more source

Scalable, Bottom‐Up Synthesis of Transition Metal–Doped Quantum Confined, 1D Titanate‐Based Lepidocrocite Nanofilaments, Their Electronic Structures and Oxygen Evolution Reactivity

Advanced Materials Interfaces, EarlyView.
Quantum‐confined lepidocrocite titanate nanofilaments are doped, bottom‐up, with Mn+2, Fe+2, Co+2, Ni+2, and Cu+2 to tune electronic structure and catalysis. Doping narrows the bandgap—by up to ∼0.8 eV—and extends visible absorption. Ni‐doped filaments accelerate oxygen evolution (319 mV at 10 mA cm−2) and TM‐doped samples rapidly degrade rhodamine 6G (
Mohamed A. Ibrahim, Devraj Singh, Aidan McMoil, Mary Qin Hassig, Raja Janani, Joshua D. Snyder, Michel W. Barsoum   +6 more
wiley   +1 more source

Methodological basis of mapping signs of industrial helium concentrations in Ukraine (Dnipro-Donetsk depression)

Мінеральні ресурси України
Helium is one of the most valuable industrial gases that is not widely distributed in the atmosphere and in the Earth’s crust. The unique physicochemical properties of helium make it indispensable in a wide range of industrial and research areas.
I. D. Bahrii, V. G. Semeniuk, I. P. Gafych, Ia. M. Kryl   +3 more
doaj   +1 more source

Inner structure of ZnO microspheres fabricated via laser ablation in superfluid helium

, 2017
ZnO microspheres fabricated via laser ablation in superfluid helium were found to have bubble-like voids. Even a microsphere demonstrating clear whispering gallery mode resonances in the luminescence had voids.
Ashida, Masaaki, Minowa, Yosuke, Oguni, Yuya   +2 more
core   +1 more source

Cryodeposition of nitrogen gas on a surface cooled by helium II [PDF]

, 2014
Ram Dhuley, Ernesto Bosque, S.W. Van Sciver   +2 more
openalex   +1 more source