At the same time, carder standard system and china unit system made the modern social structure to be homogeneous while it should be heterogeneous.

另一方面，官本位和單位制使本來應(yīng)該具有異質(zhì)性的現(xiàn)代社會結(jié)構(gòu)由于人為作用而呈現(xiàn)出許多同質(zhì)性婷婷色一区二区三区。

1Niche construction can lead to stable coexistence of diverse genotypes in spatially structured population, which supports a stable polymorphism even without heterozygote superiority.(2)With habitat deterioration, niche construction accelerates the formation of steady polymorphism and hence impedes the harmful influences of environment on the population, which might embody a life-history strategy of organism under the unfavorable environment.(3)Niche construction results in the coexistence with alternative polymorphism through genotype-environment feedback and limited gene flow.(4)The niche-constructing organism is an active force to alter its environment and hence the direction of natural selection in order to better survival.(5)Spatial dynamics and distribution pattern of metapopulation are profoundly influenced by time-lagged niche construction.(6)Metapopulation size can reach a fixed level in the recency effect and equal weighting of time lag but is statistical stability in primacy effect, which implies the primacy effect is most remarkable.(7)The increment in the relative weightingof each generation\' niche construction and the length of time lag are significant factors for system destabilization.(8)Moderate capacity of positive niche construction benefits the metapopulation persistence.(9)The narrowing of niche breadth can decrease the metapopulation size and thereby increase the extinction risk.(10)The coupled function of time lag and niche construction make the system oscillation and generate the spiral wave, spiral-broken and circular wave in heterogeneous habitat.The spatial distributions of metapopulation and resource content are complementary due to a phase lag of their both frequencies.(12)Metapopulation persistence with niche construction depends not only on the balance between colonization and extinction, but also on the balance between the ability of niche construction and natural dissipation of habitat.(13)Metapopula-tion can survive under certain condition when the percent of suitable patches in habitat is lower than the ration of extinction to colonization.(14)Two thresholds exist in the process of transition of habitat quality dynamics from unsuitable to suitable, which include the intensity of niche construction and the initial condition of system.(15)Metapopulation size is positive correlated with the ability of positive niche construction, which means that organism or population who has strongly positive influences on their environment plays an important role to maintain the available habitat.

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In the 5th chapter, the application of Multi-Agent technology in Concurrent Engineering is studied. With the shaft strength and rigidness analyzing agent and gear strength analyzing agent as examples, an agent model is studied and provided. A federated multi-agent infrastructure based on product assembly model and multiple analyzing agents is suggested. By this, cooperation under distributed and heterogeneous environment and efficient information integration among mechanical geometry product modeling system, assembly modeling system and analyzing system can be realized.

第五章研究了多代理（Multi-Agent）技術(shù)在并行工程中的應(yīng)用全裸美女私拍精品视频在线观看免费，以轉(zhuǎn)軸強度與剛度驗算代理和齒輪強度驗算代理為例子分析了代理的模型，研究并提出了一種基于產(chǎn)品裝配模型和多分析計算Agent的聯(lián)邦制體系結(jié)構(gòu)，該體系結(jié)構(gòu)能夠支持異構(gòu)分布環(huán)境下的協(xié)同工作日韩精品久久一区，能夠?qū)崿F(xiàn)機械產(chǎn)品幾何造型系統(tǒng)国产精品经典三级网站、裝配建模系統(tǒng)、分析設(shè)計系統(tǒng)之間的有效集成1级黄色片。

Several experimental applications have been developed finally. In this paper, there areinnovations from the following four aspects:1. Definition and research methods of current distributed system and distributedinteractive simulation system follow those of traditional parallel computing system.While this paper points out it is one-sided to measure the scalability just from thenumber of processors and performance of a system, because the resources of distributed systems are heterogeneous and they can be used in diverse applications. Inthis paper, scalability of distributed interactive simulation platform is defined as theability of scaling (including scale-up and scale-down) in functionality and performanceof systems which is run on the platform when number of processors and otherhardware resources such as network change, i.e. when problem size is scaled up and system resources is increased, the performanceremains fixed and it is easy to expand the functions of simulationapplications.

本文的創(chuàng)新工作主要體現(xiàn)在下述4個方面：1一级毛片AAAAAA免费看、現(xiàn)有的分布式系統(tǒng)和分布式交互仿真系統(tǒng)可擴性的定義和研究方法都沿用了傳統(tǒng)的并行計算系統(tǒng)可擴性的定義和研究方法，本文指出分布式系統(tǒng)的系統(tǒng)資源異構(gòu)多樣黄页视频网址、應(yīng)用種類豐富多樣日本aaa级黄色网，只從傳統(tǒng)方法采用的處理機資源和性能角度衡量一個系統(tǒng)是否可擴是有一定的片面性，提出了分布式交互仿真平臺可擴性的定義是在處理機和網(wǎng)絡(luò)等系統(tǒng)資源變化時欧美视频v，運行在平臺上的分布式交互仿真系統(tǒng)在性能和功能方面發(fā)生擴縮的能力高清无码黄三级，即當(dāng)問題規(guī)模擴大時，增加系統(tǒng)資源国产精品亚洲综合一区在线观看，系統(tǒng)能獲得指定的性能及在功能方面能方便進行擴充欧美精品免费观看。

In research and development of the system, mainly concluding key technologies of software-hardware environment analysis, no adapter interlink, terminal simulation, communication, sharing resources, binary file transfer algorithm , concurrent process, database-dumping and sharing, and to accomplish the basic a software design of E-classroom by adopting distribution system concept in minicomputer side , to accomplish the main software design of E-classroom by Winsock in microcomputer side , to study teacher software integration , try to realize transparent communication in the highest limit and sharing resources in the fullest extent , at last, weak and counter measure of the system is given, and the overall objective of heterogeneous computer is given to try to provide resemble system development with theory guide.

該系統(tǒng)的研究與設(shè)計過程中主要涉及軟硬件環(huán)境分析、異型機無網(wǎng)卡互連亚洲h版在线、終端仿真日本黄色网站进入入口、異型機通信、資源共享国产AV一区网站、二進制文件傳輸算法午夜精品乱人伦小说区、并發(fā)進程、數(shù)據(jù)庫轉(zhuǎn)儲與共享等關(guān)鍵技術(shù)一级做a午爰片久久毛片A片午，利用DSM分布式系統(tǒng)的概念完成了小型機部分電子教室的基礎(chǔ)性軟件設(shè)計欧美色淫淫，利用Winsock完成了微型機部分電子教室的主要功能模塊，利用并發(fā)進程的概念研究了教師機軟件的集成問題精品爱99视频在线，使異型機用戶之間達到最大限度的透明通信及充分的資源共享美女黄网站国产免费久99，給出了異構(gòu)電子教室的弱點及解決對策，提出了系統(tǒng)的總體目標(biāo)97超级对对碰，力爭為類似系統(tǒng)的研制提供理論指導(dǎo)免费一级黄色片操逼播放。

We shall there endeavour to establish the following propositions:-1. That the most ancient system in which the idea of blood-relationship was embodied, was the system of kinship through females only. 2. That the primitive groups were, or were assumed to be, homogenous. 3. That the system of kinship through females only tended to render the exogamous groups heterogeneous, and thus to supersede the system of capturing wives. 4. That in the advance from savagery the system of kinship through females only was succeeded by a system which acknowledged kinship through males also; and which, in most cases passed into a system which acknowledged kinship through males only. 5. That the system of kinship through males tended to rear up homogeneous groups, and thus to restore the original condition of affairs- where the exogamous prejudice survived- as regards both the practice of capturing wives and the evolution of the form of capture. 6. That a local tribe, under the combined influence of exogamy and the system of female kinship, might attain a balance of persons of different sexes regarded as being of different descent, and that thus its members might be able to intermarry with the principle of exogamy. 7. That a local tribe, having reached this stage and grown proud through success in war, might decline intermarriage with other local tribes and become a caste.

我們將明確一下命題：1、大部分包括血統(tǒng)聯(lián)系觀念的古代體系是只通過女系計算血族關(guān)系的體系一级免费A片。2美女裸动图一区二区三区操、原始群是或被假定是純系的。3永久观看免费揉美女网站成永久免费、只按女系計算血族關(guān)系的系統(tǒng)傾向于實行異類群的外婚制亚洲欧美日韩综合另类旡码一级，并因而取代盜妻的體系。4人禽交欧美网站、從只按女系計算血族關(guān)系的野蠻系統(tǒng)發(fā)展來的高級系統(tǒng)為也承認通過父系計算血族關(guān)系的系統(tǒng)所繼承久久久久精品久久久久影院。5色情日韩在线成人网站视频、通過父系計算血族關(guān)系的系統(tǒng)往往躍回均質(zhì)的群體，并且因此恢復(fù)到事情的原始狀態(tài)——外婚的偏執(zhí)得以幸存——被認為既是實行盜妻的又是從盜妻發(fā)展的天堂欧美成公司。6911精品国产手机在线、一個本地部落在外婚制和女系血族關(guān)系的聯(lián)合影響下，可能達到被認為不同世系的不同性別人們的平衡欧美18xxxx，而且因此成員可能得以按外婚原則通婚3级性爱短片网。7、到達這一階段而且通過勝利的戰(zhàn)爭獲得自豪的本地部落色色色色免费，可能拒絕與本地部落的聯(lián)姻而變成世襲種姓。

Through sharing file between mainframe system and open system, these heterogeneous systems can realize unseaming integration basd on data and mutual operating basd on file system. It has great significance for combining of storage resources and taking a good advantage of the abundant application programs having existed on mainframe system and reducing the cost of data storing.

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A major challenge of the heterogeneous wireless networks is how to jointly utilize the resources of different radio access technologies in an efficient manner. Because of the different system capacities of BS/AP and ununiformity of traffic distribution in different cells, quantities of new calls may be blocked in the overloaded cell in some hot spots; whereas its neighboring under-loaded BS/AP have superfluous bandwidth. In order to raise resource utilization of heterogeneous networks, several novel load balancing strategies are proposed, which combine the call admission control and multi-hop routing protocol of ad-hoc network.

異構(gòu)無線網(wǎng)絡(luò)的主要挑戰(zhàn)是如何高效利用各種接入網(wǎng)的無線資源，針對異構(gòu)無線網(wǎng)絡(luò)基站或AP的容量差異及業(yè)務(wù)分布不均一级A片五月天久久久，導(dǎo)致通信熱點地區(qū)的新呼叫因負載過重大量阻塞亚洲级黄色视频，而相鄰輕負載小區(qū)卻有容量盈余的現(xiàn)象，本文提出了幾種聯(lián)合呼叫接納控制及ad hoc網(wǎng)絡(luò)多跳路由算法的負載均衡策略疯狂欧美黑粗硬大插进去了，以提高整個異構(gòu)網(wǎng)絡(luò)的資源利用率男把女日出了白浆的免费视频。

The result of study show:The landscape elements of the landscape system in the eastern section of QiLian mountain that mainly is grassland, and the forest and bush landscape elements large-scale distribution in it;Snow and ice landscape element and water was scattered in the mountain landscape by relatively small area, the water element which runs through the various landscape elements,The results show that, the study area, QiLian Mountain is high heterogeneous region and number of the high heterogeneous is moving.

結(jié)果表明：祁連山東段山地景觀系統(tǒng)中草地景觀要素為基質(zhì)，水域景觀要素為廊道超碰人人免费人妻，而森林精品91、灌木以及冰雪景觀要素為斑塊；山地景觀系統(tǒng)呈現(xiàn)出高度景觀異質(zhì)性且在1994年到2008年之間表現(xiàn)出明顯的異質(zhì)性變化日韩AV无码一级毛片苍井空。

The method and the telecommunication switching system are characterised in that the heterogeneous data is collated and serialised and the serialised data transmitted with a clock frequency which is a common whole number multiple of the clock frequencies of the collated heterogeneous data.

該方法和電信系統(tǒng)的特征在于：所述的不同種類的數(shù)據(jù)被組合和被串行化无码在线一本，該被串行化的數(shù)據(jù)利用一個時鐘頻率進行傳輸，該時鐘頻率是需要被組合的不同種類數(shù)據(jù)的時鐘頻率的整數(shù)公倍數(shù)97公开在线视。