The cluster size in this system is not supported 不支持此系统簇的大小。
This paper reviews the relationships between cluster size and firm performance - positive , negative and nonlinear relationships . based on the previous research , it analyzes how to determine the optimal cluster size 摘要主要对国外学者关于集群规模与公司业绩的三种关系?正相关、负相关和非线性相关进行了较为详细的综述和理论阐释,并讨论了如何确定集群的最优规模。
The structure of rhn , ptn clusters for n 13 are very similar and both of these two kinds of clusters have a tendency evolving to icosahedron . for larger clusters when n > 13 , the structures of ptn show disorder characteristic but rhn keep in order structure . with the increasing of cluster size , the total binding energies and coordination numbers for rhn , ptn ( n = 2 - 20 ) clusters increase monotonously 对于rh _ n , pt _ n ( n = 2 - 20 )团簇,当n 13时,两种团簇具有相似的几何结构,都从密堆积结构向二十面体结构演化;当n 13时,铑团簇的基态结构倾向于有序结构,而铂团簇的基态结构则倾向于无序结构。
When a cluster of particles is immersed in a uniform electric field , the particles are coupled together due to the mutual interaction among them . this interaction causes the dipole moment of the cluster to be dependent upon the spatial arrangement and relative permittivity of the particles and upon the cluster size . in this work , we attempt to estimate the dipole moment of finite cubic arrays of particles , in terms of that of particle chains which has been known . we assume that a chain may be replaced by a single equivalent sphere with the same dipole moment . with replacing the chain by equivalent sphere , a cluster is simplified to a planar array , and this planar array is simplified to a chain , then the dipole moment is obtained . numerical calculations are performed . it is found that our results are acceptable 置于均匀电场中的一簇球形颗粒,由于其内部的相互作用而耦合在一起.这致使簇的感应偶极矩与簇的几何结构,大小以及颗粒的介电常数等参量有关.试图通过已知的链的偶极矩确定任意大小长方结构的簇的偶极矩.假定颗粒链可以被具有同样偶极矩的一个等效介质球代替,并将具有空间结构的颗粒簇处理成面结构簇,再将面结构简化成一个颗粒链,从而确定簇的偶极矩.在这一过程中,通过不断增加等效球的尺寸,将颗粒间的相互作用包含在簇的偶极矩中.数值分析了立方结构簇的偶极矩,结果是可接受的
Abstract : when a cluster of particles is immersed in a uniform electric field , the particles are coupled together due to the mutual interaction among them . this interaction causes the dipole moment of the cluster to be dependent upon the spatial arrangement and relative permittivity of the particles and upon the cluster size . in this work , we attempt to estimate the dipole moment of finite cubic arrays of particles , in terms of that of particle chains which has been known . we assume that a chain may be replaced by a single equivalent sphere with the same dipole moment . with replacing the chain by equivalent sphere , a cluster is simplified to a planar array , and this planar array is simplified to a chain , then the dipole moment is obtained . numerical calculations are performed . it is found that our results are acceptable 文摘:置于均匀电场中的一簇球形颗粒,由于其内部的相互作用而耦合在一起.这致使簇的感应偶极矩与簇的几何结构,大小以及颗粒的介电常数等参量有关.试图通过已知的链的偶极矩确定任意大小长方结构的簇的偶极矩.假定颗粒链可以被具有同样偶极矩的一个等效介质球代替,并将具有空间结构的颗粒簇处理成面结构簇,再将面结构简化成一个颗粒链,从而确定簇的偶极矩.在这一过程中,通过不断增加等效球的尺寸,将颗粒间的相互作用包含在簇的偶极矩中.数值分析了立方结构簇的偶极矩,结果是可接受的
cluster: n. 1.丛集;丛;(葡萄等的)串,挂;(花)团;(秧) ...size: n. (用面粉、树胶、树脂等配制的)胶料,浆糊〔用于给纸 ...cluster of equal size: 大小相等的群cluster of unequal size: 大小不等的群directory cluster size: 目录丛集大小page fault cluster size: 页面故障束大小a cluster: 自力村碉楼群a cluster of: 一串/丛; 一串,一束,一群; 一群、一组; 一群;一组cluster: n. 1.丛集;丛;(葡萄等的)串,挂;(花)团;(秧)蔸;组。 2.(蜂、人等的)丛,群,群集。 3.【物理学】聚集,组件;【化学】类族,基;(原子)团;【天文学】星团。 4.【美军】(表示又一个同等勋章的)金属片。 5.【语音】音丛,音群,义丛,词组。 6.集中建筑群〔在一大片土地上集中兴建住宅,以提供较大的公共休息场所〕。 in a cluster 成串的;成团[群]的。 vi.,vt. (使)成群;(使)群集。 clustered column 【建筑】簇柱。 by size: 按从小到大; 按大小; 依大小; 以体积分类for size: 为了试尺码, 为了试试是否合适, 按不同尺码in size: 在大小方面s size: 穿不下; 卫生裤size: n. 1.大小,尺寸规模身材。 2.(鞋帽等的)尺码,号;(纸张的)开。 3.巨大,大量;相当大的分量。 4.〔口语〕实情,真相。 5.(人的)能力,才干,身价;(物的)质量,特性。 6.量珠尺,珍珠筛。 7.〔口语〕体重。 8.〔古语〕(饭食、酒类的)定量;份饭。 full size 如实物大。 life size 如真人一般大〔指雕像等〕。 a size seven hat 七(号)大的帽子。 What size do you take in gloves 您手套尺码要多大? That's about the size of it. 〔口语〕实际情况大致就那么样。 a man of a considerable size 相当有才干的人。 be of a size 大小相同。 cut down to size 把重要性[威望等]降至合适的程度,还…的本来面目。 for size 试试尺码,试试是否合适;按不同尺码。 of all sizes 大小尺码齐全。 be (half, twice) the size of 如…的(一半,一倍)大小。 of some size 相当大。 size and strength 大小强弱。 take the size of 量…的尺寸。 vt. 1.依大小排列;量大小;测量大小;【军事】量身段,依身长排列。 2.筛分,分粒。 3.按规定尺寸制作;使…大小合适。 vi. 1.(在大小、质量等方面)相同,不相上下 (up to, up with)。 2.领取定食。 size a company 按身段高低排列一连士兵。 size down 由大到小排列。 size up 够标准,合尺寸;估量,测量;〔口语〕品评,鉴定(人物等)。 n. (用面粉、树胶、树脂等配制的)胶料,浆糊〔用于给纸张、皮革、织物等浆洗上光〕。 vt. 给…上胶,对…上浆。 a sizing machine 浆纱机。 size for: 为试尺码size of: 家庭规模the size of: 地球是月球的49倍to size: 精确按尺寸a cluster of buildings: 一群建筑物a cluster of butterflies: 一群蝴蝶a cluster of flaws: 密集区缺陷a cluster of grapes: 葡萄a cluster of islands: 一群海岛a cluster of stars: 一个星团abell cluster: 阿贝尔星系团