演化樹 的英文怎麼說
中文拼音 [yǎnhuàshù]
演化樹
英文
phylogenetic tree-
The resulting evolutionary trees reveal that opsins are ancient proteins that existed before the emergence of the predominant groups of animals that populate the earth today
研究出來的演化樹顯示，視蛋白是種古老的蛋白質，早在現今居住地球上的優勢動物類群出現之前就已經存在了。Phylogenetic analysis surports that anseranas should be placed in monotypic family anseranatidae, and the whistling ducks and the white - backed duck should be separated from subfamily anserinae and placed them into family dendrocygnidae. the family anatidae could be classified into two subfamilies, anserinae and anatinae. the results approve that the swans should be put into the tribe cygnini of subfamily anserinae as suggested by livezey ( 1996, 1997b ) and the shelducks should be placed in the tribe tadornini of subfamily anatinae, therefore, our results do not support sibley and ahlquist ' s ( 1990 ) establishment of the subfamily cygninae and placing the shelducks in the tribe anserini
研究結果表明： 1 ）雁形目鳥類12srrna基因有較多的堿基插入和缺失，堿基轉換數高於顛換數； 2 ）贊同將鵲鵝（ anseranas ）置於鵲鵝科（ anseranatidae ）中，樹鴨（ dendrocygna ）應從雁亞科（ anserinae ）中獨立出來設立樹鴨科（ dendrocygnidae ） ，白背鴨（ thalassornis ）隸屬于樹鴨科； 3 ）鴨科（ anatidae ）可分為雁亞科和鴨亞科（ anatinae ） 2個亞科，不贊同sibley & ahlquist （ 1990 ）設立天鵝亞科（ cygninae ）及將麻鴨歸入雁族（ anserini ）的觀點，支持livezey （ 1996a ， 1997b ）的觀點建議將天鵝類歸為雁亞科天鵝族（ cygnini ） ，麻鴨置於鴨亞科下麻鴨族； 4 ）在鴨亞科內的系統發生上，潛鴨最早分歧出來，麻鴨、海中文摘要鴨及棲鴨彼此iaj的親緣關系較近；河鴨族為一單系發生群，在系統演化中形成獨立的一支。Therefore the different response patterns of these two successional tree groups to light intensity and nutrient amendment may indicate their evolved adaptive strategies toward the available resource of this forestecosystem
這種現象顯示同一生育地上的不同演替期樹種將對于生存環境或資源演化出不同的適應能力。It includes two aspects in content : one is the best choice for plane disposal of pipeline, and its methods follows as decision - making plot, simple trapeziform and optimizing trunkform etc ; the other one is optimizing pipe parameter when the plane disposal of pipeline has been fixed, and the methods of which are linear programming, unlinear programming, dynamic optimizing, direct optimizing, hereditary arithmetic and so on
污水管網優化設計包括兩個方面的內容：一是管線平面布置的優化選擇；其方法有：決策圖法，簡約梯度法，優化樹法等。二是在管線平面布置已定情況下進行管道參數的優化；其方法有：線性規劃法，非線性規劃法，動態優化法，遺傳演算法，直接優化法等。Tree ring is a kind of natural archives, on which the isotopic analysis is important to study global climate and environmental change. the authors mainly provide a comprehensive introduction to the fractionation models of carbon, hydrogen and oxygen isotope in plants, their research techniques and the extract methods from cellulose. that results show isotopic tracer can record the message of climatic variation and has become a powerful tool for paleoclimate reconstruction and for the modern environment changing research. especially studying on pages, the cellulose isotopic analyses of imbedded old tree ring have become the mainly quantitative means of environmental evolvement. in addition, china is a typical monsoon country, research in tree ring stable isotope seasonal variation can give us a lot of important information on that. up to now, the research techniques and works on tree ring in our country are still in its earlier stage, and remain many limitations. it needs further accumulate basic research materials, intensify regional contrast and intercross studies on relative subjects
尤其是在過去全球變化pages研究中，埋藏古木纖維素中的碳氫氧同位素分析已成為環境演化研究的主要量化手段。另外，對于中國這樣典型的季風氣候國家，開展樹輪穩定同位素隨季節性變化的研究具有重要的意義。我國在樹輪研究方面起步較晚，研究方法和研究內容上也比較簡單，還存在不小差距，既要進一步積累基礎資料，又要做區域對比，加強與相關學科的交叉研究。Directed by the advance theories of sequence stratigraphy, reservoir beds sedimentology, seismic stratigraphy and petro - geology, measured by exactitude seismic procession, analysis of seismic facies, analysis of single well lithfacies and sedimentary facies, study of macro and micro character of reservoir and diagenesis, this paper study comprehensively the stratigraphy sequence, the type and distributiong of sedimentary facies, reservoir properties, the diagenesis and the evolution of pores of the 2nd and 3rd parts of pingdiquan formation of permian in wucaiwan - shishugou region in jungan basin. we can optimum seek favourable target area and apply the study results on oil field production in order to solve the difficult questions. we mainly achieve several views as follows : l ) establish the sedimential sequence framework of permian formation in studying area and delimint the jiangjunmiao formation of middle dyas series as lowstand system tract, the lower of the second part to the third part of pingdiquan formation of middle dyas series as transgressive system tract, the upper of the second part to the first part of pingdiquan formation as highstand system tract
以層序地層學、儲層沉積學、地震地層學、石油地質學的先進理論為指導，以地震資料精細目標處理、地震相分析、單井巖相分析、沉積相分析、宏觀和微觀儲層特徵分析及成巖作用研究為手段，對準噶爾盆地東部五彩灣? ?石樹溝地區二疊系平地泉組二、三段的地層層序、沉積相類型及展布、儲層物性特徵、成巖作用及孔隙演化進行綜合研究，優選出有利勘探區帶，並將研究結果應用到生產中，解決生產中的難題，主要取得了以下幾點認識：建立了工區內二疊系沉積層序框架，把中二疊統將軍廟組地層劃為低水位體系域，中二疊統平地泉組二段下部三段地層為水進體系域，二段上部一段地層為高水位體系域。Deformation monitoring and development of shiliushubao landslide on three gorges of yangtze river
石榴樹包滑坡變形監測及演化趨勢分析Branch - - the graphical representation of an evolutionary relationship in a phylogenetic tree
分枝- -在種系發生樹中，物種演化相互關系的圖示。Bifurcation ? ? the graphical representation in a phylogenetic tree of an evolutionary eciation event whereby an ancestral taxon lits into two
分歧點? ?在演化的種形成事件中，物種由相同來源一分為二，其在種系發生樹中的圖示點。Bifurcation - - the graphical representation in a phylogenetic tree of an evolutionary speciation event whereby an ancestral taxon splits into two
分歧點- -在演化的種形成事件中，物種由相同來源一分為二，其在種系發生樹中的圖示點。" in a nutshell … the presence of these birds in pine forests increased the growth of the trees by helping to rid them of damaging insects, " said kailen mooney, an evolutionary biologist at the university of colorado at boulder
簡而言之… …松林里有鳥兒存在，可增加樹木的生長，因為鳥兒幫樹木除掉有害昆蟲，柏德市科羅拉多大學演化生物學家穆尼表示。Experimental plots were established for thinning effects on stand and tree growth, tree species composition, species diversity and soil factors etc. in the mixed larch - spruce - fir stands which originated from planted larch pure forest by observations for 12 years after thinning
摘要以15塊人工落葉松純林演化后形成的落葉松雲冷杉混交林為對象，間伐后12年觀測結果，研究間伐對林分和樹木生長、樹種組成、物種多樣性及土壤等因子的影響。Thermoevolutional characteristics of hydrocarbon generation from barkinite, late permian coals in shuicheng, guizhou province
貴州水城晚二疊世樹皮體成烴的演化特徵The nucleic acids of the all influenza viruses conducted in the research were extracted from the viruses propagated in specific - pathogen - free chicken embryos. all of the eight segments were amplified by rt - pcr, and the purified pcr products were done cycle sequencing with specific primers, furthermore, the sequencing products were purified and run gel on abi prism 377 dna sequencing machine. the specific primers of the eight genes for pcr and cycle sequencing were designed using the ohgo ( 4. 0 version ) and genedoc ( 2. 3 version ) software
首先將實驗用毒株在spf雞胚中增殖，提取核酸，然後應用oligo （ 4 . 0版本）和gendoc （ 2 . 3版本）軟體設計h9n2aiv所有8個基因片段特異的pcr引物及序列測定引物，通過rt - pcr方法擴增所有毒株的各個基因片段，純化後用特異引物進行測序反應，反應產物純化后在abiprism377dna序列分析儀上進行序列測定，然後應用wisconsinsequenceanalysispackage （ gcg ， 10 . 2版本） 、 phylogeneticanalysisusingparsimony （ paup ， 4 . 0版本）和treeview （ 1 . 5版本）軟體進行序列的數據編輯、序列翻譯、進化樹繪制和遺傳演化分析。By computing the cost of the cheapest subtree with size constraints of the partial tree ( this is an upper bound on the cost of the final optimal tree ) and lower bounds on the cost of subtrees of varying sizes that are rooted at nodes of the partial tree, the algorithms can identify and prune nodes that cannot possibly belong to the optimal constrainted subtree
建樹階段設置大小限制的修剪演算法是通過計算出不完整樹的最小代價得到優化樹的代價上限，根據此上限以及計算出的節點的實際代價來修剪節點的。在預測模型中應用了在建樹階段加入大小限制條件的修剪演算法。Niu shu - yin, chen lu, xu chuan - shi, et al. 1994. crustal evolution and metallogenic regularities in taihang mountain area [ m ]. seismological press, beijing ( in chinese )
牛樹銀，陳路，許傳詩，等. 1994 .太行山地區地殼演化及成礦規律[ m ] .北京:地震出版社Because ec is simple and it seldom needs any additional information about the problem, ec becomes a general solver of challenge problems. according to the essential property of the discontinuous function, we design a new hybrid coding structure - - point - tree structure, which uses a point to present a discontinuity and a tree to present a sub - function
我們根據間斷參函數識別問題的本質特徵? ?間斷性，設計了一種新的復合編碼結構? ?點樹結構，用點來表示間斷點信息，用樹來表示子函數信息，通過對點和樹的聯合演化來達到尋求最優解的目的。Is 297. 1mg g ; light hydrocarbon, wet gas and alkene are the main composition of hydrocarbon ; the temperature range of hydrocarbon producting is at 400 - 450
含樹皮體煤樹皮體生烴潛力烴類組成特徵成烴演化規律中圖分類號：Some central musa ( including 46 cultivars and 14 wild species ) were tested using aflp molecular markers with two pairs of primers ( e - acc / m - cat and e - acc / m - cag ). one aim of this research is to ascertain the relationships between wild species and cultvars, cultivars belong to the same group in simmonds system. another aim is to provide molecular basis for musa systemetics and banana evolution route research
作者於2001年4月2002年5月以國家果樹種質廣州香蕉圃和華南農大香蕉品種園的主要芭蕉屬植物為研究對象，應用aflp分子標記技術探討野生蕉種間、野生蕉與栽培蕉、栽培蕉各類型之間以及各類型內部品種（系）之間的親緣關系，為香蕉的演化途徑研究、香蕉種質資源的評價利用、品種鑒定以及在分類上存在爭議的個別種質的系統學劃分等提供分子水平上的依據。We evolve them together to obtain a proper solution
我們稱這種演化演算法為點樹遺傳程序設計演算法。分享友人