Results 91 to 100 of about 2,351,452 (290)
EnergiesWith the increasing global demand for sustainable energy, the importance of advanced nuclear technologies, such as fourth-generation reactors, has become increasingly prominent.
Mian Xing +6 more
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Advanced Engineering Materials, EarlyView.Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao +3 more
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Advanced Engineering Materials, EarlyView.A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
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Lead-210 and strontium-90 in an Alpine glacier
Earth and Planetary Science Letters, 1967 Abstract 210 Pb and 90 Sr measurements were carried out on firn and ice samples from the Kesselwandferner (Austrian Alps). 90 Sr seems to be selectively lost in the firn with respect to the other fission products and to 210 Pb. The distribution of the 210 Pb ‘ages’ of the ice samples follows a consistent pattern and is in general agreement with ...
Picciotto, Edgardo +3 more
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Advanced Engineering Materials, EarlyView.Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
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Determination of lead-210 by dithizone extraction of bismuth.
BUNSEKI KAGAKU, 1964 微量のビスマスを酸性側からジチゾンで抽出するときの異常の原因を見いだした.クエン酸が存在するとpH4に極小抽出率が,ハロゲンイオンが存在するとpH6に極小が現われる.その影響はジチゾン四塩化炭素溶液よりクロロホルム溶液のほうが大きい.従来,pH2.5～3.5がビスマスの抽出条件であったが,酢酸イオン共存で硝酸とアンモニアでpH1.5に調節した条件が最適であり,1gの鉛からもビスマスは完全に分離できた.この条件を用いて人形峠ウラン鉱石中の210Pbを,多量の鉛キャリヤーを加え硫酸鉛として分離後,その娘核種の210Biをジチゾン四塩化炭素溶液で抽出分離し,β放射能を測定して210Pbを求めた.その結果,ウランとの平衡量の75%しか存在しないことを見いだした.
ASHIZAWA, Takashi +2 more
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Journal of Chemistry, 2013 Lead-210 and 210Po are naturally occurring radionuclides. Due to volatile characteristic of lead and polonium, environmental pollution of 210Pb and 210Po released from the coal power plant, steel-making industry and refractory material industry has been ...
Guogang Jia
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Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing
Advanced Engineering Materials, EarlyView.The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai +6 more
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Brazilian Journal of Radiation SciencesFetal growth and survival are solely dependent on the placenta, making the characterization of toxic elements in this tissue crucial for understanding exposure during pregnancy.
Laíssa Adriana Bonifacio +5 more
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Frontiers in Pharmacology, 2012 In contrast to expectations in the past that tumor starvation or unselective inhibition of proteolytic activity would cure cancer, there is accumulating evidence that microenvironmental stress, such as hypoxia or broad spectrum inhibition of ...
Haissi eCui +4 more
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