artificial propagation 中文意思是什麼

artificial propagation 解釋
人工繁殖;人工放流
  • artificial : adj 1 人工的,人造的;人為的 (opp natural)。2 摹擬的 (opp genuine real); 不自然的,矯揉造作的...
  • propagation : 持續培養
  1. A group of organisms having common ancestors and certain distinguishable characteristics, especially a group within a species developed by artificial selection and maintained by controlled propagation

    屬一群擁有共同祖先和明顯特徵的有機體,尤指屬于同一物種的一群,通過人工選擇來發展,通過有控制的繁殖來維持
  2. The growth of gonad and liver were analyzed as well. the results revealed that bad development of the gonad and liver fatty degeneration often occurred to the captive one and there was a correlation between the two. all these often resulted in failure of artificial propagation

    解剖觀察性腺和肝臟發育特點,發現養殖型暗紋東芳?性腺發育好壞與肝臟脂肪變性發生與否相關,據此分析和討論了全人工繁殖中存在的一些問題。
  3. Technical specification for obscure puffer culture - part 2 : techniques in artificial propagation

    暗紋東方?養殖技術規范第2部分:人工繁殖技術
  4. 二., the effection of back - propagation artificial neural network the ann model fitted very well in the study of typhoid fever and paratyphoid fever, viral hepatitis and epidemic cerebrospinal meningi - tis, yet, it did n ' t fit so well in the study of endemic typhus and en - demic encephalitis b. piscuss 1

    在bp人工神經網路的預測效果方面,呼吸道傳染病百日咳和猩紅熱、消化道傳染病傷寒副傷寒和細菌性痢疾模型的預測效果較好。蟲媒傳染病的預測效果最差。在干早地區的傳染病預測方面, bp神經網路模型在回代和預測效果方面均優于傳統的多元逐步回歸模型。
  5. On the basis of analysing multilayer forward artificial neural networks which based on back propagation algorithms and basic principles of the adaptive noise cancellation system, this paper sets up an adaptive noise cancellation controller based on artificial neural network, which is proved to be more efficient in the noise cancellation and has robust performance based on simulink of matlab at the end, this paper proposes some advices of model and algorithms

    在對基於誤差反向傳播學習演算法的多層前向人工神經網路進行分析基礎上,結合傳統自適應噪聲抵消系統基本原理,建立了基於人工神經網路的自適應噪聲抵消器,經基於matlab的simulink模擬實例證明,具有很強的噪聲濾除能力和魯棒性。最後並提出了網路及演算法進一步改進的方法。
  6. The back - propagation ( bp ) network is one of the most useful artificial neural network ( ann ), which can deal with complicated data and nonlinear problem

    Bp網路是最具有代表性的人工神經網路之一,具有強大的數據處理能力和非線性映射能力。
  7. Based on visual rice growth models ( vrgm ) and with rice tillering as examples, the back - propagation artificial neural networks ( bp ) and radial basis function networks ( rbf ) were established to simulate the rice growth and to compare with statistical model and dynamic model

    3 、在研製可視水稻生長模型的基礎上,進一步利用人工神經網路bp模型和rbf模型,對水稻生長進行了模擬與模擬。並以水稻群體莖蘗動態為例,與水稻群體分蘗的統計模型和動力學模型進行了比較。
  8. Technical specifications for rainbow trout culture. artificial propagation techniques

    虹鱒養殖技術規范.人工繁殖技術
  9. An initial research on artificial propagation of catfish silurus asotus l

    鯰人工繁殖技術的初步研究
  10. Specification for african catfish culture. techniques in artificial propagation

    革鬍子鯰養殖技術規范.人工繁殖技術
  11. Technical specifications for mandarinfish culture. artificial propagation techniques

    鱖養殖技術規范.人工繁殖技術
  12. Based on the discussions of the conventional and recent methods of short term load forecasting such as time series, multiple regression approaches and artificial intelligence technologies, this paper presents a hybrid short term forecasting model which combines the artificial neural network ( ann ) and genetic algorithm ( ga ). in order to improve the convergence speed and precision of the back - propagation ( bp ), a new improved algorithm - the adapted learning algorithm based on quasi - newton method is given

    本文首先分析比較了電力系統短期負荷預測的傳統方法時間序列法和回歸方法以及最近的專家系統和神經網路技術的優點和不足,然後針對人工神經網路bp演算法的不足對其進行了改進,採用了基於擬牛頓的自適應演算法,它提高了網路學習效率,具有較快的收斂速度和較高的精度。接著提出了改進的遺傳演算法來改善神經網路的局部收斂性。
  13. A three - tiered artificial neural network ( ann ) model with a feed - forward, back - propagation net - work structure was developed to forecast river flow in the manwan reservoir

    摘要以雲南省漫灣水電站歷史徑流狀況為研究對象,運用三層前饋反向傳播神經網路模型對徑流進行中長期預報。
  14. In order to overcome problems arisen from the application of x fluorescence analysis into complex spectrum produced by archaeological ceramic fragments with multi - element, low content and thick ground, we have employed the artificial neural network into the research of x fluorescence archaeology and conducted three kinds of research works. as the first one, we have applied the linear olam network ( optimal linear association memory network ) and the non - linear bp network ( back - propagation network ) respectively to analyze the complex x fluorescence spectrum of archaeological samples, and taken both results of spectrum analysis to compare with each other. the second, the method of pattern recognition of bp network was tentatively used to perform intelligent identification of production places of these archaeological samples

    針對科技考古中對大量考古陶片進行產地研究時x熒光分析對多元素、低含量、厚基底考古陶片產生的復雜譜分析的問題,將人工神經網路引入x熒光考古中,進行了三方面的研究工作:一是用線性olam網路(最優線性聯想網路)和非線性bp網路(誤差反傳導網路)分別對考古樣品的x熒光復雜譜進行解譜,並比較二者的解譜效果;二是用bp網路模式識別方法對考古樣品的產地進行智能識別;三是為了提高網路運算的可靠性和減小基體效應及電噪聲的干擾和影響,研究並提出了三種網路學習前的譜數據預處理方法。
  15. Because it is a long time before the hybrid method getting the field, one can use the artificial net work ' s character of learning by itself, and get the law of the path loss. consequently, it become easier to study the wireless electrical wave ' s propagation characters

    利用混合法計算場,比較耗時,可以運用人工神經網路的自學習功能,就能很快得出路徑損耗規律,從而更加方便對室內的無線電波傳播特性進行研究。
  16. Meanwhile, numbers can be increased by artificial propagation. most populations should be sampled so as to retain as much of the genetic diversity of the species in ex situ preservation as possible

    同時還要對八角蓮進行遷地保護,由於八角蓮的居群遺傳分化較大,遷地保護中應注意在較多的居群中取樣,全面保護其遺傳多樣性。
  17. The artificial neural networks ( ann ) with back propagation algorithms coupled with the sequential pseudo - uniform design ( spud ) was applied and demonstrated successfully to the modeling of the pmr system using limited but adequate experimental data

    我們採用接續式擬均勻設計來安排實驗取得少量但充足的數據並以類神經網路來建構鈀膜反應器之代表性模式。
  18. Research in the identification of father in artificial propagation

    人工生殖的父親身份研究
  19. The purpose of this thesis is to use artificial neural networks ( ann ) to identify the aerodynamic parameters. first introduced in this paper is the basic theory of ann and wind engineering in bridge, then ann is presented to identify the aerodynamic derivatives of ideal thin plate. a back - propagation ( bp ) ann is established and trained for many times to contrast the influences of some factors on the prediction results

    首先對人工神經網路和橋梁風工程的基本理論作了簡單的介紹,接著採用人工神經網路識別了理想薄平板的氣動導數,並分析了數據處理方式、隱層單元數、訓練次數、隨機賦值次數、樣本數量對訓練結果的影響,討論了訓練的穩定性。
  20. Technical specifications for ying hybrid carp culture. artificial propagation technigues

    穎鯉養殖技術規范.人工繁殖技術
分享友人