cluster effect 中文意思是什麼
cluster effect
解釋
群集效應-
The cluster of small and medium commercial firms produces cluster effect and consequent competitiveness
中小商業企業聚集經營能夠產生聚集效應，具有競爭優勢。 -
Our main conclusions are that surface polar interaction can give rise to a transition from a high temperature homogeneous alignment to a low temperature hometropic alignment, that if the strength of the surface polar interaction is weaker than the one of surface dispersion interaction, the homogeneous alignment of the nematic is always stable. part ii : a two - particle cluster theory is presented to study the effect of a solid bounding surface on the nlcs formed by polar molecules
獲得的重要結論是：摩擦基板與液晶分子間的表面極性相互作用能引起基板間向列相液晶分子指向矢出現高溫沿面到低溫垂面的轉變；當表面極性作用強度弱於表面色散作用強度時，基板間向列相液晶分子平行於基板的排列非常穩定。 -
In this text, we first do some research on the genetic algorithm about clustering, discuss about the way of coding and the construction of fitness function, analyze the influence that different genetic manipulation do to the effect of cluster algorithm. then analyze and research on the way that select the initial value in the k - means algorithm, we propose a mix clustering algorithm to improve the k - means algorithm by using genetic algorithm. first we use k - learning genetic algorithm to identify the number of the clusters, then use the clustering result of the genetic clustering algorithm as the initial cluster center of k - means clustering. these two steps are finished based on small database which equably sampling from the whole database, now we have known the number of the clusters and initial cluster center, finally we use k - means algorithm to finish the clustering on the whole database. because genetic algorithm search for the best solution by simulating the process of evolution, the most distinct trait of the algorithm is connotative parallelism and the ability to take advantage of the global information, so the algorithm take on strong steadiness, avoid getting into the local
本文首先對聚類分析的遺傳演算法進行了研究，討論了聚類問題的編碼方式和適應度函數的構造方案與計算方法，分析了不同遺傳操作對聚類演算法的性能和聚類效果的影響意義。然後對k - means演算法中初值的選取方法進行了分析和研究，提出了一種基於遺傳演算法的k - means聚類改進（混合聚類演算法） ，在基於均勻采樣的小樣本集上用k值學習遺傳演算法確定聚類數k ，用遺傳聚類演算法的聚類結果作為k - means聚類的初始聚類中心，最後在已知初始聚類數和初始聚類中心的情況下用k - means演算法對完整數據集進行聚類。由於遺傳演算法是一種通過模擬自然進化過程搜索最優解的方法，其顯著特點是隱含并行性和對全局信息的有效利用的能力，所以新的改進演算法具有較強的穩健性，可避免陷入局部最優，大大提高聚類效果。 -
To the common requirement of invisibility of the two, the paper presents a information hiding strategy which first uses cluster analysis methods ( this paper uses k - means algorithm ) to classify the image to get the nature of the image, and then uses one embedding algorithm, accounting the improvement on the conceal effect using image ' s character
接著對信息隱藏技術的兩個重要分支隱寫術與數字水印技術，闡述其各自特點及異同點，針對二者在不可見性上的共同要求，從利於圖像自身的特性增強掩密效果的思路出發，提出先用聚類分析的方法（本文採用了k -均值演算法）對圖像的像素點進行分類以充分發掘圖像自然的內在特性，再結合嵌入演算法的信息隱藏策略。 -
The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material
本文的主要工作和結論如下：在人工氣候室內，根據不同覆冰絕緣子正、負極性下的閃絡試驗結果，得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓；正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應；覆冰較少時，合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法，對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明，直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低，且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。 -
First of all, this paper reviews the industrial cluster external economy effect theory ; offer the theoretical foundation for subsequent comparative study and analysis
首先，本文回顧了產業集群外部經濟效應理論，為后續的比較研究和分析提供理論基礎。 -
The result show, most of the medium - strong earthquakes faults are dip - slip reversed, distribution of the main stress p axis is sector from west to east ; there are large difference between kuche and baicheng region in seismic activities, but the characteristic of cluster is same in the two region ; the distribution of medium - strong earthquakes is nw direction in baicheng region, it show, there can have a concealed fault ; small earthquake clusters ' activities can reflect the effect that local medium - strong earthquakes to the secondary small structure around it
結果表明：南天山東段中強震震源斷錯以傾滑逆斷為主，主壓應力p軸由西到東呈扇形分佈；相距較近的庫車與拜城地區地震活動存在較大差異，但均存在明顯的成叢性分佈特點；拜城地區中強地震分佈呈北西向可能預示著該區存在隱伏斷裂，小震群活動則可能反映了局部中強震對周圍次級小構造的影響。 -
Through field investigation and analysis indoor, with studying all hydrochemistry data in detail, including macro components and micro components, the author finds out the hydrochemistry feature of ground water. for further specifying the ground water system, with cluster analysis of macro components of surface water and ground water in total 147 samples and the analysis of micro components, including ree, the main ground water systems are distinguished by and large, especially the ground water system main of fault no. 7 and fault no. 15 water bearing belts which have differences at macro and micro components between the two ground water systems, moreover, the main hydrogeochemistry effects are established such as lixiviation, oxidization, precipitation and mixing effect, especially the mixing effect which result in the complexit y of the hydrochemistry of deep bearing tectonic fracture water. based on them, the hydro geological model of upper dam base is established, meanwhile the author summarizes the hydrochemistry feature of weathering crevice water, surface tectonic crevice water and deep tectonic crevice water
為此，本文以大崗山壩區水文地球化學問題為研究對象，通過野外調查和室內分析，詳細的研究了壩區水化學資料，包括宏量組分、微量組分，查明了壩區地下水水化學特徵，對採集的147個地表及地下水樣的宏量組分進行聚類分析，結合微量元素，稀土元素的研究，並應用二氧化硅地熱溫標確定了深部構造裂隙水的熱源深度，基本區分了壩區各個主要地下水水系，特別是以f7 、 f15斷裂含水帶為主的地下水系，它們的宏量組分、微量組分以及稀土等方面均存在差異，以此為基礎，結合壩區水文地質條件，建立了壩區的上壩址的水文地質模型，同時通過分析了壩區花崗巖區的水化學資料，確立了壩區主要的水文地球化學作用，分別為：溶濾作用、氧化作用、沉澱作用、以及混合作用，混合作用是導致深部承壓裂隙水水化學復雜的主要原因，並總結了壩區風化裂隙水、淺部構造裂隙水、深部構造裂隙水的水化學特徵。 -
The particles aggregation was simulated using particle - cluster and cluster - cluster aggregation model. several type of floes was reached and its morphological characteristics was analyzed the fractal dimension, density and porosity of floes was studied by changing sticking probabilities, sticking position, particle number, particle concentration, difrusion coefficient and motion trajectory. the parameters by which special floes growth were determined. in the study of morphology, floes of yellow river ' s loess particles was observed by tv - microscope. its morphological characteristics were obtained by image analysis. the effect of fractal dimensions by stirring time strring speed, macromolecule flocculant dosage, flocculant concentration and particle concentration was studie. its rule of change was obtained. on the basis of other studies, the flocculation kinetics and floes structure was studied
本文應用計算機模擬技術，在二維空間內採用單體凝聚和集團? ?集團凝聚兩種模型對顆粒凝聚過程進行了模擬，得到了多種形態的絮體，並對絮體進行了形態分析，通過改變粘附概率、粘附位置、顆粒數量、顆粒濃度、擴散系數和運動路徑等模擬參數，我們考察了絮體分形維數、密度和孔隙率隨模擬條件變化的影響規律，得到了形成特定形態絮體的控制參數。 -
The author then analyzes the competitive advantage of china ' s textile industry form three aspects : firstly, the author thinks the synthetic competitive ability of textile industry is weaker. this fact has an effect on the international competitive ability by means of using factor analysis between textile industry and the others ; secondly, the author puts realized index and ahp into use on the basis of m. e. porter theory and china ' s specific condition, and comes to a conclusion that the trend of china ' s textile international competitive advantage is coming down ; thirdly, the author thinks the industrial environment can not be ignored, though the industry itself is equally important. in view of the above, the paper adopts the industrial cluster analysis, which can demonstrate that our textile industry has not yet won the capability of maintaining the long - term competitive advantage
然後，作者從三個方面分別對我國紡織業競爭優勢進行了分析：第一，利用因子分析對我國紡織業進行了跨行業綜合競爭實力研究，結果表明紡織業在我國的綜合競爭實力較弱，這勢必會給產業的國際競爭力帶來不利影響；第二，以波特理論為基礎，結合我國的國情，採用實現指標分析法和層次分析法進行分析之後，又對某些因素進行了補充分析，得出我國紡織業的國際競爭優勢趨勢處于下降的結論，這應當引起我們高度重視；第三，評價產業的國際競爭優勢，產業自身因素固然重要，但產業所處的外部大環境也很重要，因此又進行了產業簇群分析，從這個角度看我國紡織業還不具備維持長期競爭優勢的能力，應當引起充分警覺。 -
Industry cluster can effectively realize scale economic benefit, moreover it can drive the area economic development by strong spillover effect
摘要產業集聚能充分實現規模經濟效益，並能以強大的溢出效應帶動整個區域的發展。 -
S. lividans mutant strains zx1 ( dnd cluster deleted ) and zx64 ( dnda disrupted ) had pleiotropic mutations including low mel expression and poor sporulation. it was speculated that dnda together with its downstream dna ( 2. 5kb ) might be involved in these two phenotypes because dnda together with its downstream dna could restore normal sporulation and mel expression to zx64, while dndb and dndc had no such effect because lai and la2 showed no obvious difference in these two phenotypes from wild type s. lividans 1326
另外通過比較這幾個突變株及野生型菌株在產孢和黑色素基因（ mel ）表達方面的差異，推測dnda及其下游區域與變鉛青鏈黴菌的產孢和刺激外源黑色素基因的表達有關，而dndb和dndc則與之無關，因為la1和la2在這兩種表型上與野生型菌株無明顯差異。 -
The ab initio calcu1ation by selecting cluster mode1 with different size showed that with the decrement of model size the quantum - sized effect was more prominence, the energy distance was bigger near fermi energy, the energy schism was also more obvious
選取不同尺度的簇模型從頭計算表明，隨著尺度的減小量子尺寸效應越發顯著，費米能級附近的能級間隔變大，能級分立現象更加明顯。 -
Industrial cluster has exhibited its competitive advantage via collaborative effect, and become the main mode for the countries and areas, esp. those developing ones, to take part in the international economic competition
產業集群通過協同效應顯示出的競爭優勢，已經成為世界各國特別是不發達國家和地區參與國際經濟競爭的骨幹力量和主要方式。 -
The foundation of so many industry parks indicates that all levels governments have admitted the effect of industry cluster on economy development. meanwhile, not only the center but also the local has attached most importance to foster and promote the formation and development of industry cluster in their guideline and policy
克魯格曼的經濟地理學和資源依附理論的基礎上，將企業創生過程分成機會識別階段、機會評價篩選階段和機會實施階段，並分階段的研究企業創生的影響因素，按照這些因素企業創建的作用分成基礎因素和輔助因素。 -
The experience of it manufacturing clusters in guangdong indicates that whether local clusters can upgrade its technology or realize sustainable development depends on many factors, such as, the regional element cost and exterior effect of cluster, the technological gap between local enterprise and mne, the nature of foreign enterprise and the technological structure etc
摘要廣東東莞it製造業集群的經驗表明，本地集群能否藉助外資實現技術升級與可持續發展，除了受地方要素成本及集群外部效應的影響之外，還受到本地企業與外資企業的技術差距、外資企業的性質、技術結構等多種因素的影響。 -
We then discuss the determinant role of information transmission mechanics on cluster effect
在此基礎上，探討了商業集群特殊的信息傳導機制對聚集效應的決定作用。 -
The construction of the first phase of the cyberport and the new science park, both of which will create the necessary cluster effect, are progressing well
數碼港第一期工程和新的科學園計劃進展良好，日後我們所需的專才會在此匯聚。 -
London is experiencing a “ cluster effect ” with wealthy people choosing to make their homes in the capital because of the benefits and services that have sprung up around the existing wealthy
倫敦正在經歷著一個「扎堆效應」 ? ?由於圍繞在現有富人周圍的便利與服務， （新的）富人選擇在倫敦安家。 -
Wenzhous logistic industry should take advantage of its superiority and the specific cluster effect to speed up the informationalization of the logistics, to strengthen the logistic industry so as to promote the upgrade of wenzhou ' s economy
溫州物流業應利用已有的各種優勢和獨特的集群效應，加快物流信息化進程，將物流產業做大做強、助推溫州經濟向史高層次邁進。
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