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A picosecond (abbreviated as ps) is a unit of time in the International System of Units (SI) equal to 10 −12 or 1⁄1 000 000 000 000 (one trillionth) of a second. That is one trillionth, or one millionth of one millionth of a second, or 0.000 000 000 001 seconds.
Lidar (/ ˈlaɪdɑːr /, also LIDAR, LiDAR or LADAR, an acronym of "light detection and ranging" [ 1 ] or "laser imaging, detection, and ranging" [ 2 ]) is a method for determining ranges by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver.
A plot of Lorenz' strange attractor for values ρ=28, σ = 10, β = 8/3. The butterfly effect or sensitive dependence on initial conditions is the property of a dynamical system that, starting from any of various arbitrarily close alternative initial conditions on the attractor, the iterated points will become arbitrarily spread out ...
Rachael Louise Gunn [2] was born on 2 September 1987 [3] in Hornsby, New South Wales. [4] She danced as a child, and was trained in ballroom, tap, and jazz styles.[4] [5]Gunn attended Barker College [6] before enrolling at Macquarie University, where she completed a bachelor's degree in contemporary music in 2009 and a PhD in cultural studies in 2017. [7]
The speed of light in vacuum, commonly denoted c, is a universal physical constant that is exactly equal to 299,792,458 metres per second (approximately 300,000 kilometres per second; 186,000 miles per second; 671 million miles per hour).
Pearson correlation coefficient. Several sets of (x, y) points, with the correlation coefficient of x and y for each set. The correlation reflects the strength and direction of a linear relationship (top row), but not the slope of that relationship (middle), nor many aspects of nonlinear relationships (bottom).
Psychopathy is a personality disorder of affective, interpersonal, and behavioral dimensions that begins in childhood and manifests as aggressive actions in early or late adolescence. Childhood trauma affects vulnerability to different forms of psychopathology and traits associated with it.
皮秒雷射效果維持時效 相關
廣告皮秒雷射新興雞尾酒療法，雙機光療有感煥膚，擊退深層黑斑，淡化淺層斑點，超音波導入保濕有彈性. 菁英醫療團隊診治，量膚訂製有感美白對策，賦活新生重塑無瑕美肌，可縮小毛孔，改善痘疤撫平細紋
