| 1. | 6 . a normal sphere hue model based on reflect character and average radius of image was introduced ( 6 )提出以待测图象的反射特性、平均半径为参数的标准球体灰度模型。 |
| 2. | The apple feature parameters include size and shape . picking up the average radius as the size feature . picking up the average radius error as the shape feature 提取苹果的特征参量:包括大小特征量? ?平均半径r _ 0 ;形状特征量? ?相对平均半径误差r 。 |
| 3. | In order to maintain electrical neutrality , some trivalent b ions oxidized to form b4 + , which resulted in a net decrease in the average radius of the b ions , as a result the volume of the unit cell decreases 为保持电中性,一些三价的b离子氧化变成四价的b离子,这一变化导致b位离子平均半径的减小,从而导致晶胞的整体减小。 |
| 4. | Second method only use longitude - latitude orientation average radius distribution feature , l1 distance function and indirect searching database . in third method , 3d model is equally divided into 16 parts in z axis orientation firstly 第二种检索技术提取经纬方向平均半径分布作为特征向量,相似度计算使用l _ 1距离,直接检索特征数据库。 |
| 5. | Moreover , the diffraction peak shifts toward high angle as sr content increases . it is ascribed to the substitution of la3 + by sr2 + in lscf increases the average radius of a ions and causes a charge imbalance 且随着sr含量的增加,衍射峰值向高角度方向稍有偏移,这是由于低价sr ~ _ ( 2 + )取代高价la ~ ( 3 + )增加了a位离子的平均半径,同时引起电荷不平衡。 |
| 6. | There are two features used in first method : area distribution of 3d model surface and latitude orientation average radius distribution . quadratic form distance function has been applied to calculate the similarity of two feature vectors and two passes are needed to search database in first method 第一种检索技术使用了两个特征:面积分布和纬度方向平均半径分布,在相似度计算使用了二次方程式距离计算公式,数据库检索采用了分步检索方法。 |
| 7. | The 10 x 10 grids can be used to deal with the image of 160 x 140 . only after processing 224 pixels , the reference figure center and average radius of object can be calculated by particle method . it is very effective to reduce processing area and to improve processing speed 对160 140大小的图象以10 10网点处理,仅需处理224个象素点后,就可以通过质点法计算出目标物体的参考形心和参考平均半径,有效地减少了后续处理的图象面积,提高了处理速度。 |
| 8. | To achieve the objective of protecting reservoir during drilling , the common means is to add proper graded temporary plugging materials , coupled with colloid filling particles in upper drilling fluid based on the average radius of pore throat in reservoir , which converts upper drilling fluid to reservoir protection fluid 摘要在钻井过程中,为达到保护油层的目的,通常根据油层的平均孔喉半径,在上部钻井液中加人合适粒径的暂堵剂,再配合胶体填充粒子将其改造为对油层具有保护作用的钻井液。 |