pib 中文意思是什麼
pib
解釋
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Based on the generalized huygens - fresnel diffraction integral and in consideration of the effect introduced by astigmatism, the transformation properties of gaussian beams passing an astigmatic lens are studied analytically, the beam quality of astigmatic gaussian beams is analyzed in terms of the beam propagation factor ( m2 - factor ) and power in the bucket ( pib ), and illustrated with numerical examples
基於廣義惠更斯-菲涅爾衍射積分，並考慮了像散的影響，對高斯光束通過像散透鏡后的傳輸特性作了解析研究，以光束傳輸因子和桶中功率為參數分析了像散高斯光束的光束質量，並以數值計算例加以說明。 -
Pib. polyisobuthylene roofing felt with backing ; requirements
帶襯料的聚異丁烯 -
Pib processor in a box
盒裝處理器 -
Chapter 4 : applying the definitions of the generalized second and fourth order moments, the beam propagation m2 - factor and the kurtosis parameter of coherent and incoherent combinations of two - dimensional off - axis elegant hermite - gaussian ( ehg ) beams are derived analytically and numerically. and the power in bucket ( pib ) is also presented numerically. our results illustrate the propagation properties of the beam through a first - order optical abcd system
第四章：討論了相干和非相干離軸完美厄密高斯（ eleganthermitegaussian （ ehg ） ）光束組的傳輸特性，通過解析推導和數值模擬，研究了相干和非相干的離軸ehg光束組的傳輸，得出並比較了相干和非相干的離軸ehg光束組的光束質量因子、陡峭度和筒內的功率（ powerinbucket ） 。 -
Standard specification for reinforced white pib sheet used in roofing membrane
屋頂隔板用增強白色pib板材的標準規范 -
Conclusion : [ 11c ] pib - pet detected an increased amyloid plaque load in 89 % of patients with clinically probable alzheimer disease ( ad )
結論： pib - pet檢測顯示澱粉樣蛋白沉積增加占臨床診斷「很可能」 ad的89 。 -
The high frontal amyloid load detected by [ 11c ] pib - pet in ad in the face of spared glucose metabolism is of interest and suggests that amyloid plaque formation may not be directly responsible for neuronal dysfunction in this disorder
額葉較高的澱粉樣蛋白沉積卻不伴有相應的腦葡萄糖代謝率下降提示其對神經元退變影響的非直接作用。 -
The frequently used parameters such as the power in bucket ( pib ), the beam width, the curvature radius, the far field divergence, the m2 - factor, the rayleigh length and the kurtosis are calculated in term of the intensity moments
第二章用強度矩的方法研究了hchg光束，研究了hchg光束的pib系數、陡峭度在傳輸過程中的變化以及偏心系數b和厄米多項式階數m對光束質量的影響。
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