最初分類學 的英文怎麼說
中文拼音 [zuìchūfēnlèixué]
最初分類學
英文
alpha taxonomy- 最 : 副詞(表示某種屬性超過所有同類的人或事物) most; best; worst; first; very; least; above all; -est
- 初 : Ⅰ名詞1 (開始的部分) at the beginning of; in the early part of 2 (姓氏) a surname Ⅱ助詞(附著...
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 類 : Ⅰ名1 (許多相似或相同的事物的綜合; 種類) class; category; kind; type 2 (姓氏) a surname Ⅱ動詞...
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 最初 : prime; initial; first
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In addition, it puts forward a nested temporal db, which, with stronger expressive ability than others, is a breakthrough to entity - relationship model and is referred to as nter model. it also verifies the expressive ability of nter when it is applied to sidss. finally, in view of the features of sidss and the current status of salary distribution system, it conducts initial study of the sidss based on temporal - spatial relationship and the sidss with a temporally - driven knowledge database, with the aim for us to develop a consummate sidss system in the future
本文中,介紹了時態數據庫的基本概念、發展、特點和分類;結合sidss的背景、特色及體系結構,詳細討論了sidss的時態性及其數學模型,指出將時態數據庫應用到sidss並作進一步的研究是必然趨勢,並在此基礎上研究了時態數據庫系統的模型;在探討了幾種模型之後,打破實體-關系類的模型的框框,提出了一個表達能力較強的嵌套時態數據模型,稱之為nter模型( nestedtemporalentity - relationshipmodel ) ,並驗證將其應用到sidss系統中的表達能力;最後針對sidss的特點以及目前工資管理系統的狀況,進一步對基於時空關系的sidss系統、由時態驅動知識庫的sidss系統進行初步探討,以期今後對開發更完善的引) ss系統作進一步的研究。Gene engineering is the one of science and technologies which are developing fastly. with the developing of gene - group school and element engineering school, specially " the human beings gene - group plan " having been completed, gene engineering has already developed a new history stage. trans - gene plants and animals, trans - gene foodstuff, gene diagnosis. gene therapy. gene medicine, ects, all these spur the people ' s nerve, and gene engineering becomes the focus. people expect gene engineering to give them the property, health and happiness
基因工程是當前科技發展最為迅速的領域之一,隨著基因組學和分子工程學的發展,特別是「人類基因組計劃」的初步完成,標志著基因工程發展到一個新的歷史階段。轉基因動植物、轉基因食品、基因診斷、基因治療、基因藥物等基因產業的異軍突起,刺激著普通民眾的神經,成為人們關注的熱點。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。Based on fresh specimens collected in southern part of guangxi in 1998 - 2000, and those deposited in institute of zoology, chinese academy of sciences, we reported 81 species in 27 genera and 4 subfamilies of eulophidae. among them, 60 species and 4 genera are new to china. separate reviews of species in each subfamily reported by others before this paper are also given. a preliminary component analysis is conducted to survey the eulophid fauna of guangxi
根據1998 2000年作者在廣西南部山區的採集,結合中國科學院動物研究所昆蟲標本館館藏標本的研究,報道了該科4亞科27屬81種在廣西的分佈,其中, 4屬60種是中國新紀錄.本文對前人和作者最近對中國姬小蜂科的分類研究簡單作了綜述,並對廣西的姬小蜂科物種進行了初步的組分分析.根據現有材料得出結論是: 1 )廣西的姬小蜂科區系成分以東洋區和古北區成分為主; 2 )多個區系成分分佈相互重疊、交錯The new data suggest that the glutamate receptors and other similar neuro - transmitter receptors may actually evolve from ancestral methods of simple communication, common to plants and animals alike. selective environmental pressure may have led to a higher production of these neurotoxins for defense against predators more recently in evolutionary time. neurotoxins isolated from plants may be originally signalling molecules regulating these plant receptors
林教授指出以往生物學家相信植物製造神經毒素純是為了防禦草食類動物的侵襲,但這項植物?氨酸感受器的研究卻指向另一可能性,即神經毒素最初可能是植物用來作訊息傳遞的分子,通過?氨酸感受器和其他類似的感受器來調控植物本身的生命功能。The research focus of anthropology on aestheticism has shifted from the determination of the cardinal characteristics of beauty at the beginning stage, to the analysis of the social and cultural functions of aestheticism, and then to the understanding and cognition of the aesthetic connotations in different cultures through inquiries into cross - cultural aestheticism
摘要人類學對審美問題的研究重點從最初對美的本質特徵的界定,發展為對審美的社會文化功能分析,再演變為通過對跨文化審美感知的探詢而理解不同文化的意義世界的建構與認知過程。Under the guidance of new principles and methods of modern sedimentology, detrital petrography, reservoir geology, diagenesis, this thesis has carried out detailed study on paleogene formation correlation, sedimentary environment, characteristics of sedimentary facies and diagenesis of the eastern kuche depression, tarim basin, dina area being taken as the main target of the study. based on the core, geology logging, log and seismic data from 9 typical wells, combined with the data of the adjoining area, the dominant sedimentary types of the study area have been recognized and illustrated, such as fan - delta, lacus and normal delta. in terms of the analysis on the sedimentary facies of typical and connecting wells in different areas and facies belt, together with the paleogene tectonic evolution characteristics of foreland basin, the distribution and evolution of the sedimentary facies of the study area have been clearly discovered both vertically and laterally
通過對該區9口井的巖芯、錄井、測井、地震資料及鄰區資料的分析,識別並闡述了庫車坳陷東部下第三系的幾種主要的沉積相類型,如扇三角洲相、湖泊相和正常三角洲相;通過對不同地區、不同相帶典型井及連井的沉積相分析,結合前陸盆地在下第三系的構造演化特點,弄清了迪那地區下第三系沉積相的縱橫相發育展布和演化規律,並建立了沉積相模式;同時,初步開展了成巖作用、儲層孔隙演化和儲層發育模式的研究工作,科學合理地解釋了現今迪那地區下第三系儲產層主要發育在粉砂巖中的特殊現象,首次建立了下第三系儲層的發育演化模式,為庫車坳陷東部地區進一步尋找下第三系大儲量、高產油氣藏和有利的勘探區塊提供科學的、可靠的和最直接的地質依據。On the one hand, with the structural changes of the economy and finance of the world, credit risk is becoming more and more important, based on which international supervision institutes and banks are applying themselves to develop advanced model to deal with it
基於此,本文從信用風險暴露細分和信用風險度量模型分類的角度,運用經濟學中的邊際理論和最優化理論、新制度經濟學中的路徑依賴理論以及金融學的相關理論,就我國商業銀行信用風險度量方法的選擇問題進行初步的探討。This article elaborated the nuclear electricity in sustainable development function, and to the future nuclear tv university scale development forecast, the full text will divide three parts : the first part for the nuclear electricity and the nuclear electricity development survey, elaborated the nuclear electrical equipment had its industrial revolution the intrinsic makings, france, us and japan already basically completes the nuclear electricity to become the new energy the industrial revolution, our country then just started
本文論述了核電在可持續發展中的作用,及對未來核電大規模發展的展望,全文分三個部分:第一部分為核電及核電發展概況,論述了從最初的對核能的略帶恐懼的探索到現在在自然科學和人類社會各個領域都充斥著核技術的身影,其中又以核電最成產業規模,可以說,核電具有產業革命的內在氣質,法國、美國和日本已經基本完成了核電成為新能源的產業革命,我國則剛剛起步。Based on the analyses of dynamic deformation process of the soft failure roadway under high ground stress, process - monitoring stepwise supporting principle was put forward to maintain this kind of roadway, that is 1 ) making full use of the carrying capacity of surrounding rocks, 2 ) timely reinforcing the surrounding rock by grouting to enhance its integrality, and 3 ) reinforcing supporting in those key positions
基於該類巷道變形的動態階段性特點,針對性地提出該類軟巖巷道支護的過程監控分步支護的過程式控制制方法,即開巷初期充分發揮圍巖自身的承載能力;適時採取圍巖注漿加固, 「保護與強化」圍巖力學性能,提高圍巖完整性;最後關鍵部位加強支護。Lastly, establish the rigid - body spaceship attitude kinematics and dynamics equations, and primarily design the spaceship attitude law including limit loop parameters and two kind switch curves. analyze the astronaut ’ s disturbance moments. put the disturbance moments of typical astronaut ’ s push - off act as the input datas of the control system simulation, and analyze the response of the attitude control system after disturbed
最後,建立剛體飛船姿態運動學及動力學方程,並對飛船姿態控制律進行了初步的設計,包括極限環參數的設計和兩類典型的開關曲線的設計;對航天員擾動力矩進行了分析;以典型的航天員推離動作對飛船的擾動力矩作為控制系統模擬的輸入參數,分析姿態控制系統受到擾動后的響應。分享友人