粉粒聚積 的英文怎麼說
中文拼音 [fěnlìjùjī]
粉粒聚積
英文
silt agglomeration-
The crystalline structure changes of pp induced by pan - milling were characterized by x - ray diffraction and raman spectroscopy. xrd analyses show that when pp was co - milled with uhmwpe, crystal transformation of pp occurred, its crystallinity and crystallite size decreased, whereas, only slight reduction of crystallinity and crystallite size were observed and no crystal transformation was found when pp was co - milled with wtr chips, and amorphization of pp was strongly enhanced by co - milling pp with iron
採用x -射線衍射研究了聚丙烯碾磨粉碎過程微觀結構變化， uhmwpe存在下pp發生晶型轉變、結晶度降低和晶粒尺寸減小；彈性材料wtr抑制pp塑性變形，碾磨導致分子堆積有序區域膨脹，晶面間距增大，結晶度下降；剛性材料金屬鐵與pp產生強烈摩擦，加快晶粒細化，晶格破裂導致非晶化。In this paper, the contrast of original image is enhanced by nonlinear transformation based on the characteristics of grain image ; after comparing several methods of threshold segmentation and analyzing their performance and applicability on grain image, the adaptive threshold segmentation based on gradient image is presented ; the noise of binary image is reduced with morphological filter, the hollow in binary image is filled in and a recognition algorithm is designed to remove agglomerate particle ; on the basis of mathematical morphology two methods are adopted to segment agglomerate grains that are not agglomerated tightly ; the parameters of size and shape, perimeter, area, diameter, complexlity, longest feret diameter, shortest feret diameter etc, are extracted. this technique is applied in measurement of pearl powder ' s particle size
本文根據粒度圖像的特點，採用非線性對比度增強處理改善顆粒顯微圖像的對比度；對多種閾值分割方法進行比較，分析了它們的性能和用於粒度圖像的適用性，在此基礎上提出了一種基於梯度圖像的動態閾值分割方法；對獲取的顆粒二值圖像進行形態濾波和空洞填充，設計了識別演算法去除凝聚體；對重疊不太嚴重的粘結顆粒採用了兩種基於數學形態學的分割演算法；提取了周長、面積、粒徑、復雜度、最長feret徑、最短feret徑等大小和形狀特徵參數，對珍珠粉等粉體粒度進行了測量。During the late microspore stage, a big vacuole formed and the nucleus was forced to move to peripheral region
當小孢子被釋放出后，鈣顆粒開始特異性積累在正在形成的花粉外壁中，尤其在萌發孔的部位聚集了大量的鈣顆粒。Nanometer and micrometer sized gd2o3 : eu have many defects in the surface, and have high specific surface area, which can make the particles agglomerate, so the phosphors ’ lightness would be decreased
納微米級的gd2o3 : eu熒光粉顆粒，表面存在很多缺陷，並具有大的比表面積，易團聚，從而影響熒光粉的發光性能。During the initial pan - milling period ( 1 - 5 milling cycles ), a sudden particle size reduction was observed, which can be described by " avalanche " pulverizing mechanism, i. e., large amount of energy caused by pan - milling press force accumulated in deformable polymers to a critical point and then the deformed polymer flakes suddenly collapsed to small particles by shear force
結果表明，在碾磨初期（ 1 5碾磨循環） ，聚合物粒子的粒度有一個驟降過程，是磨盤強大擠壓力場作用於塑性材料引起的能量積累達到其破壞極限后引起的突然破碎，可用均一粉碎機理描述。The center of a starch grain around which the layers of starch are deposited
臍點：是澱粉粒的形成中心，澱粉成層積聚在臍點周圍。And cu6sn5 alloy were synthesized by chemical reduction between cu ( ii ), sn ( iv ) and zn. samples were characterized by xrd, sem and tem. the results showed that b sample was globe - shaped, ultra - fine hexagonal cosn alloy ( 80 ~ 200nm ) and c sam
認為可能原因是cosn合金樣品顆粒過大，充放電循環過程中逐漸粉化失效，容量迅速衰減；而納米cu - sn 、 cu6sn5容量衰減是由於納米材料比表面積很大，充放電循環過程中易發生團聚分享友人