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1 day ago · This results in greater jitter during measurements of its radial velocity. Variations of 15 m s −1 were measured over a 20 year period, which is much higher than the measurement uncertainty of 3 m s −1. This makes interpretation of periodicities in the radial velocity of Epsilon Eridani, such as those caused by an orbiting planet, more ...
4 hours ago · A few rockets and some fit-in-the-box aircraft are made to this size. 1:120: 0.1″ 2.54 mm: TT model railroad scale. 1:110: 2.771 mm: Used for some model ships, aircraft and diecast cars. 1:108: 2.822 mm: An historic size for ships, also used for rockets and spacecraft. 15 mm figure scale for wargaming is considered interchangeable with this ...
1 day ago · This size of particulate matter, lifted to the stratosphere, may take months or years to settle, and may do so anywhere in the world. [4] Its radioactive characteristics increase the statistical cancer risk, with up to 2.4 million people having died by 2020 from the measurable elevated atmospheric radioactivity after the widespread nuclear weapons testing of the 1950s, peaking in 1963 (the ...
1 day ago · The DPB capacity (in units of pictures) increases from 6 to 8, 12, or 16 as the picture size decreases from the maximum picture size supported by the level. The encoder selects which specific pictures are retained in the DPB on a picture-by-picture basis, so the encoder has the flexibility to determine for itself the best way to use the DPB capacity when encoding the video content.
1 day ago · Sheridan W. Cavitt, who accompanied Marcel to the debris field, provided a sworn witness statement for the report. [204] Cavitt stated, "I thought at the time and think so now, that this debris was from a crashed balloon." [205] Ufologists had previously considered the possibility that the Roswell debris had come from a top-secret balloon.
1 day ago · Most jewel box parks were built to fit the constraints of actual city blocks, often resulting in significantly asymmetrical outfield dimensions and large outfield walls to prevent easy home runs. Notable examples included League Park in Cleveland, which had a 40-foot (12 m)-tall wall in right field, and the Green Monster , the 37-foot (11 m)-tall left field wall at Fenway Park in Boston.
4 hours ago · 1，四步实现NMS 选取这类box中scores最大的哪一个，记为box_best，并保留它 计算box_best与其余的box的IOU 如果其IOU>threshold了，那么就舍弃这个box（因为可能这两个box表示同一目标，所以保留分数高的哪一个） 从最后剩余的boxes中，再找出最大scores的哪一个，如此循环往复，直到没有box为止 2，源码解读 ...
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