The electric dyadic green ' s function inside the sphere and the magnetic dyad outside the sphere are given . in addition , spherically multilayered conductor is discussed and the dyadic green ' s functions are given for a two - layer conductive sphere 进一步讨论了同心分层导体球情况，并给出了电流元位于两层同心导体球的里层时球内电场和球外磁场的并矢格林函数。
Fourthly , compared with two types of different aggressive behaviors among different social status , we find that the relational aggressive behaviors of low - acceptted friendship dyads are more than those of the other two social status dyads 回归分析表明，友伴受欢迎程度能反向预测同性别友谊的两类攻击行为， fwegy硕士学位论文wmaster ’ stllesis互选友伴数能正向预测同性别友谊的两类攻击行为。
That is , the difference of tie strength is significant between the social networks which resource flow with mutual dyads or with asynunetric dyads . the use of power and the balance control the basic proceeding of resource change and flow in the network . the 不同资源流向的社会网络，它们的关系强度是不同的，即资源二元非对称流动的社会网其关系强度和资源二元对称流动的社会网关系强度，它们的差异是显著的。
Thirdly , the social status of friendship dyads is consisted with their numbers of mutual friendship . according to the scores of numbers of mutual friendship , the high - acceptted dyads score higher than normao - acceptted dyads , and the nomal - acceptted dyads score higher than low - acceptted dyads 友谊社交地位与互选友伴数存在一致性，被群体高度接纳的友谊的互选友伴数多于一般接纳组，一般接纳组的互选友伴数又显著多于低接纳组。
The orchestration highlights the features of the harmonica band ; which on one hand enable all parties to perform the major note ; on the other hand it enables the audience to recognize clearly the peculiarity of each instrument , which include harmony , dyad and combination of different instruments . various combination and hierarchy have already been contemplated to achieve . one of the most distinguished features for this piece are its countless variations 在配器方面，务求发挥口琴队的特色，并让高低各个声部都有演奏主音的时候，让听众清楚辨别乐队中各种乐器的音色及效果，包括独立声部、双音、不同的组合及全体演奏等多种织体及层次都顾及，变化多端，这是创作此曲的重点之一。
With the method of sociometric nomination and questionnaire , we get 1484 mutual dyads and 130 first - mutual friends , as well as the scores of sociometric nomination , number of friendship nomination , friendship quality , and social behavior nomination of mutual friends for 586 students from two middle schools in wuhan 通过对最(最不)喜欢的班级内同伴提名、好朋友提名、互选友谊质量评定、社会行为提名，从关系水平上得到了的友伴对的社会测量提名得分、互选友伴数得分、友谊质量各维度得分以及社会行为提名各维度得分。
Our preliminary results showed that the allogrooming behavior concentrated primarily on the dorsal and anogenital regions . accordingly , the postures of the dyads precluded them from facing each other , a potential social strategy adopted by these monkeys to reduce tension and decrease conflict . allogrooming also occurred most frequently on body surface areas allotted to the inaccessible category 为了了解相互理毛是否集中在自我理毛不容易进行的部位，我们做了三个相应的分析：自我理毛在全身的分配、各部位得到相互理毛的情况、不同年龄性别组得到相互理毛的情况。
A planar sidm with j loops ( expressed in term of smj ) can be regarded as comprising of a sidm with j - loops ( expressed in term of smj - 1 ) and a dyad ( expressed in term of dyadj ) . then , the circuit condition of sm , is determined by the circuit condition of smj - 1 and the configuration of dyadj . based on the above thought and combined with the automatic generation of structural decomposing of planar mechanism according to the type transformation theory , circuit automatic identification of planar sidm are realized , two examples are given to demonstrate the use of this method 具有j个环路的sidm可看作由j - 1个环路sidm与一个双杆组(记作dyad _ j )组成，则sm _ j的回路情况由sm _ ( j - 1 )的回路情况、 dyad _ j的构形以及dyad _ j与sm _ ( j - 1 )运动的相互作用决定，基于此思想，在全面分析了所有类型双杆组的构形及装配条件的基础上，与型转化法机构结构分解路线的自动生成相结合，实现了平面sidm回路识别的系统化与自动化；最后给出了两个分析实例。
