random structure 中文意思是什麼
random structure
解釋
隨機結構-
Rapd ( random amplified polymorphic dna ) technique was used to study the genetic structure and genetic differentiation of the natural population and the hatchery stock of chlamys farreri. amplifications with 20 10 - base primers under predetermined optimal reaction yielded 153 reproducible amplified fragments ranging from 200 to 3000bp. the mean proportions of polymorphic amplified fragments of natural population and the hatchery stock were 73. 2 % and 70. 6 % respectively, and the mean hetreozygosities of them were 0. 27 and 0. 26 respectively
在對20個野生櫛孔扇貝和20個養殖櫛孔扇貝的基因組dna的檢測中， 20個隨機引物共擴增出153條清晰可分辨的dna片段，片段大小在200 3000bp之間，其中野生種群和養殖群體多態性片段分別為112和108條，多態位點比例分別為73 . 2 %和70 . 6 % ，雜合度分別為0 . 27和0 . 26 。 -
Abstract : the far - field spot characteristics of laser converted by random phase plate are analyzed theoretically, including the shape, size, rotational symmetry and diffractive efficiency of the spots, as well as the distribution of subsidiary spot. by comparing the influence of phase element shape ( triangular, square and hexagonal ) on the characteristics, we found that the random phase plate with hexagonal array structure is more suitable for the beam smoothing in laser fusion
文摘:從理論上分析了激光經隨機位相板變換后在遠場的光斑特性（包括光斑的形狀、大小、旋轉對稱性、衍射效率以及旁瓣分佈） ，通過比較三種形狀位相元（等邊三角形、正方形和正六邊形）的遠場光斑特性，得知正六邊形位相元結構的隨機位相板更適合於激光聚變中的束勻化。 -
Study on the preparation and relationship between micro - structure and mechanical properties of epoxy / rubber / clay composites epoxy / rubber / clay composite has been prepared by the melted intercalation of octadyl ammonium exchanged montmorillonite ( c18 ) with dgeba and carboxyl - terminated butadiene - acrylonitrile random copolymers ( ctbn ), and piperidine as the curing agent
環氧樹脂橡膠粘土三元復合材料採用熔融共混法制備了環氧樹脂橡膠粘土三元復合材料，就ctbn 、 c18含量、加料順序和固化工藝等制備工藝對c18在三元復合材料結構以及材料的力學性能的影響進行了研究。 -
Fourthly, under the structure of general equilibrium, it analyzes the speculative bubbles " impact on the economy with overlapping generation model which considers the technology advances and random real capital gain ratio. it not only introduces the achievements of foreign economists ( tirole, 1985, weil, 1987 ; blanchard and fisher, 1989 ) ; but also does the creative research on the movable economic efficiency during the transitional period
第四，在一般均衡框架下，採用具有技術進步和隨機實質資本投資收益內容提要率的跨時迭代模型研究投機泡沫對經濟的影響，推廣了國外經濟學家（五role ， 2955 ; weil ， 1957 : blanch出妞助dfisher ， 1989 ）的研究成果。 -
A complex model method to analyse the random seism response to the vibration isolation of the base with a masony structure
砌體結構基礎隔震隨機地震響應分析的復模態法 -
Besides, this paper adopts the random finite element method, uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock, coefficient of lateral pressure, height or buried depth of vertical loading, elastic resistance coefficients of surrounding rock, elastic modulus of support structure, unit weight of concrete, thickness of the structure as well as torsional strength and compression strength of concrete and etc., as random variables, applies the monte - carlo method to sampling by computer, preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel, and obtains the related displacement of the lining, mean value and variance of internal force, and computed the reliability index of lining structures
此外，本文採用隨機有限元方法，將圍巖容重、側壓力系數、垂直荷載高度或埋深、圍巖的彈性抗力系數、支護結構的彈性模量、混凝土容重、結構的厚度以及混凝土的抗扭與抗壓強度等與襯砌結構有關的幾何與物理力學參數作為隨機變量，應用蒙特卡洛理論進行計算機隨機取樣，對雪峰山隧道模注混凝土襯砌的承載力與穩定性的可靠度進行了初步評估，得出了襯砌的相關位移與內力的均值和方差，並計算出了相應的襯砌結構可靠指標。 -
In this work, some species of palmae cultivated in the xiamen botanical garden had been selected to be analyzed their genetic diversity with rapd ( random amplified polymorphic dna ) technique. according to the result of genomic dna amplified with pcr ( polymerase chain reaction ), genetic distance and similarity between different palm species were calculated on nei " s estimate of similarity and genetic distance. a primary but first time research at the phylogenetic relationships of some genera and species, the molecular classification and identification of some puzzling species of palmae was carried out through upgma ( unweighted pair group mean average ) cluster analysis of the genetic distance together with comparative study of the morphological structure characteristics
本文在初步調查分析了棕櫚科植物在我國的自然分佈、引種馴化情況以及該類植物在廈門地區栽培應用狀況的基礎上，首次採用rapd分子標記技術，對廈門萬石植物園引種的一些棕櫚科植物的遺傳多樣性進行了研究，根據pcr對基因組dna擴增的結果，用nei ' s相似性系數計算了不同植物間的遺傳距離和遺傳一致度，通過對遺傳距離的upgma聚類分析，並結合形態分類的特點，對棕櫚科植物的屬、種間的系統分類關系和一些疑難種的分類鑒定進行了初步研究。 -
Consequently, i applied the r / s analysis on the composite index of shanghai stock exchange and component index of shenzhen stock exchange from 1996 to 2001, to study the fractal structure of csms. the result of the analysis shows that the returns of the indexes do not obey brownian motion, but follow a biased random walk with hurst exponent being 0. 63 and 0. 65 respectively. hence, we can conclude that the china ' s stock markets are not yet efficient informationally
本文進一步運用重標極差分析法，分別對進入規范發展階段后的滬、深兩市股價指數日收益率和周收益率進行了分形檢驗，發現上海股票市場和深圳股票市場均具有分形結構，赫斯特指數分別為0 . 63和0 . 65 ，長期記憶周期分別為362天和2犯天，進而得出中國股票市場有效性水平較低的結論。 -
The random amplified polymorphic dna ( rapd ) and inter - simple sequence repeat ( issr ) analysis were used to estimate population genetics of fenneropenaeus chinensis. we analyzed the genetic diversity and genetic structure of the populations, and also studied the genetic divergency among populations and geographic populations. the main results shown as follows : 1
本文以中國對蝦（ fenneropenaeuschinensis ）野生群體為研究對象，採用rapd和issr分子標記技術，進行了群體遺傳學的研究，對中國對蝦野生群體的遺傳多樣性及群體遺傳結構進行了分析，研究了中國對蝦各野生群體之間的遺傳分化情況。 -
The assemblage angle and maximum step are studied, the method to calculate the maximum step of random structure paramers and random walking orientations is proposed and some formulations are deduced. the singularity and singularity workspace are analysed. based in zmp theory, the track programming is finished depending on leg position workspace
根據zmp理論，在腿位置運動空間內作了軌跡規劃，劃分了步行周期，求出了腳圓心的軌跡，對速度和加速度作了規劃，應用離線軌跡規劃方法，給出了離線求取桿長伸長值及速度值的演算法框圖。 -
Szm8325a - szm9325 glass straight line edging machine is designed for grinding straight line flat edging of different sizes and thickness. szm9325a can process straight line and 45edge. coarse grinding, refine grinding, polishing, and angle - marking can be completed in a procession. tt s speed can be widely adjustedby its stelpless regulator. speed alteration is very mooth. in grinding operation, feeding and operation speed can be adjusted at random. front fails can be adjusted to fit caried thickness of processed glass. and its advanced structure, high precision, easy handling, and highefficiency, it is one of indispensable instruments for glass procession. szm9325p and szm9325ap adopt plc control system
Szm8325a - szm9325型玻璃直線磨邊機適用於磨削不同尺寸和厚度的平板玻璃直邊和45稜角， szm9325a可加直邊和45級邊。本產品集粗磨精磨拋光倒角等工序一次加工而成，並採用無級變速調節，可調范圍大，變速平穩在削磨過程中可任意調節進料速度和進給量可調節前導軌變換加工玻璃的厚度。 -
In the last twenty years, extensive studies have been made on the structure, basic magnetic properties, interlayer coupling, interfacial structures and its relative effects in magnetic thin and ultrathin films due to their potential application in magnetic random access memory ( mram ) and ultrahigh - density data storage
隨著在磁性隨機存儲器和超高密度存儲技術中應用的不斷拓展，近二十年來，磁性薄膜和超薄膜的結構、基本磁性、層間耦合、界面狀況及其相關效應一直是人們研究的熟點和難點之一。 -
Are uncertain and should be regarded as random variables, therefore the reinforced concrete frame is stochastic structure inherently, and then its motive equations converted to combined random differential equations for the uncertain parameters and external random excitation. these equations were solved by order - orthogonal expansion method with pseudo - excitation method, and then the statistic stochastic responses of random structure were obtained. at last, based on the stochastic cumulative damage model with double parameters developed by park, formulas were formulated for calculating structural earthquake damage probability using the structural reliability theory ( mainly jc algorithm ) in extensive random space
首先對受地震激勵的剪切型鋼筋混凝土結構進行建模，用隨機等效線性化方法將二階非線性微分方程組化成一階線性微分方程組（或稱之為狀態方程） ；再考慮材料等參數的隨機性，則狀態方程成為復合隨機微分方程組，將擴階系統方法和虛擬激勵方法推廣並應用於這個復合隨機微分方程組，求出結構的隨機響應量的統計參數；最後採用隨機累積損傷破壞準則，在廣義隨機空間內，用jc演算法求解失效概率，進而求出結構的抗震可靠度。 -
Speckle is caused by object ' s micro - structure, with more less - correlated random structure co - interference in the imaging field, the speckle can be depressed greatly
採用面內多幀平均和動態採集方式可以有效的抑制散斑噪聲，綜合利用這兩種方式可以更好的提高測量精度。 -
Secondly, the response problem of a random structure under evolutionary random excitation is solved by the stochastic perturbation method combined with the unified approach. our derivation is based on the following three indispensable assumptions : 1, the random perturbations must be small fluctuations ; 2, the random parameters of the system are mutually independent ; 3, the random parameters and the random excitation are mutually independent too
2 ）將統一解法與隨機攝動法相結合，推導中採用了三個不可或缺的假設： （ 1 ）隨機攝動是一個小量； （ 2 ）系統各個隨機參數是相互獨立的； （ 3 ）系統的隨機參數與所受的隨機激勵是統計獨立的。 -
As the random structure of ldpc codes made it difficult to encoding in hardware and few mathematic methods has been found for analyzing these codes, many constructed ldpc codes were investigated to simplify encoding circuit and to reduce the complexity of analyses
隨機構造的ldpc碼缺乏系統的分析理論，且編碼部分的硬體實現困難，成為ldpc碼應用的一個瓶頸，因此許多的結構化的ldpc碼被相繼提出，以簡化編碼的硬體復雜度和理論分析的難度。 -
Eigenvalues and eigenvectors analysis of random structure systems
隨機結構系統的特徵值和特徵向量分析 -
Nowadays, a lot of attention has been paid to the distribution of some particular patterns in the random structure
近來，在隨機結構中，有關某些特定的模式的分佈受到了很大的關注。 -
The random structure assumption which is adopted by most of the current researchers cannot satisfy all demands of 3.
當前大多數研究採用的隨機空間結構假設，不能完全代表三維傳感器網路的實際需求。 -
In addition, the change mechanism of the secondary structure under alkaline ph - independent perturbation is discussed and it is considered that a - hexlix and p sheet unfold and convert into 3 turn and random structure
根據譜峰確認及其歸屬指派結果，討論了堿性ph擾動下的牛血清白蛋白二級結構的變化機制，認為隨著ph增加，螺旋和片層向轉角和無規纏繞轉換。
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