Recent Progress and Challenges in the Field of Metal–Organic Framework-Based Membranes for Gas Separation

Metal–organic frameworks (MOFs) represent the largest class of materials among crystalline porous materials ever developed, and have attracted attention as core materials for separation technology. Their extremely uniform pore aperture and nearly unlimited structural and chemical characteristics have attracted great interest and promise for applying MOFs to adsorptive and membrane-based separations. This paper reviews the recent research into and development of MOF membranes for gas separation. Strategies for polycrystalline membranes and mixed-matrix membranes are discussed, with a focus on separation systems involving hydrocarbon separation, CO₂ capture, and H₂ purification. Challenges to and opportunities for the industrial deployment of MOF membranes are also discussed, providing guidance for the design and fabrication of future high-performance membranes. The contributions of the underlying mechanism to separation performance and adopted strategies and membrane-processing technologies for breaking the selectivity/permeability trade-off are discussed.Kansai University Fund for Supporting Outlay Research Centers, 20212021年度関西大学研究拠点形成支援経費　研究課題「高透過・高選択性分離膜の革新的合成手法の開発と応用」journal articl

武道の伝統的な行動のしかたについて

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Observation of D_s1(2536)^+ → D^+π^-K^+ and angular decomposition of D_s1(2536)^+ →D^*+K_S^0

Using 462 fb^{-1} of e^+e^- annihilation data recorded by the Belle detector, we report the first observation of the decay D_s1(2536)^+　→　D+π^-K^+. The ratio of branching fractions \frac{B(D_s1(2536)^+ → D^+π^- K^+}{B(D_s1(2536)^+ → D+K^0}is measured to be (3.27±0.18±0.37)%. We also study the angular distributions in the D_s1(2536)^+　→D*+K_S^0 decay and measure the ratio of D- and S-wave amplitudes. The S-wave dominates, with a partial width of Γ_S/Γtotal=0.72±0.05±0.01.journal articl

Evidence for Direct CP Violation in B0→K+π-Decays

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