Publications by authors named "F I Marshall"
This paper presents a simple physics-based model for the interpretation of key metrics in laser direct drive. The only input parameters required are target scale, in-flight aspect ratio, and beam-to-target radius, and the importance of each has been quantified with a tailored set of cryogenic implosion experiments. These analyses lead to compact and accurate predictions of the fusion yield and areal density as a function of hydrodynamic stability, and they suggest new ways to take advantage of direct drive.
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- * This experiment produced 2.05 MJ of laser energy, resulting in 3.1 MJ of total fusion yield, which exceeds the Lawson criterion for ignition, demonstrating a key milestone in fusion research.
- * The report details the advancements in target design, laser technology, and experimental methods that contributed to this historic achievement, validating over five decades of research in laboratory fusion.
Article Synopsis
- - The study explores the historical background of domestic yak and cattle on the Tibetan Plateau, focusing on their significance for herders living at high altitudes and the limited previous knowledge on their history.
- - Researchers analyzed 193 animal remains and sequenced genomes from recent excavations, revealing a greater presence of cattle compared to yak and evidence of hybridization between the two species around 2500 years ago.
- - Findings suggest that a diverse reliance on these animals has enhanced herder adaptability to high-altitude conditions, with ancient livestock being closely related to modern species, highlighting a long-standing tradition of yak and cattle husbandry in the region.
Rhythms are a common feature of brain activity. Across different types of rhythms, the phase has been proposed to have functional consequences, thus requiring its accurate specification from noisy data. Phase is conventionally specified using techniques that presume a frequency band-limited rhythm.
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