顯性有利因子 的英文怎麼說

中文拼音 [xiǎnxìngyǒulìyīnzi]
顯性有利因子 英文
dominant favorable gene
  • 顯 : Ⅰ形容詞1 （明顯） apparent; obvious; noticeable; evident 2 （有名聲有權勢的） illustrious and inf...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 因 : Ⅰ動詞[書面語] （沿襲） follow; carry on Ⅱ介詞1 [書面語] （憑借; 根據） on the basis of; in accord...
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 顯性 : [生物學] dominance顯性性狀 dominant character; 顯性修飾因子 dominigene; 顯性遺傳 dominant inheritance
  • 有利 : advantageous; beneficial; favourable
  1. Abstract : molecular deposition ( md ) film, a nano film, is assembled by the interaction of static charge between cationic and anionic compounds. the micro - friction properties of an md film on silica has been studied with atomic force microscope ( afm ). it has been found that the md film has lower coefficient of friction as compared with the original surface of silica. moreover, based on the analyses of the surface force versus distance curves, photographic image, friction force image, and modulated force image, it is concluded that the friction reduction effect of md film on silica is attributed to the surface adhesion reduction and surface micro - modification

    文摘:利用原子力顯微鏡對石英巖表面單層分子沉積膜的微觀摩擦特性進行了研究，發現該分子沉積膜具有一定的減摩性.通過對其表面力-位移曲線、表面形貌像、調制力像和摩擦力像的進一步分析表明，石英巖表面分子沉積膜具有減摩作用的原因在於它能夠降低表面的粘著力並對表面具有微觀修飾作用
  2. The research adopts that hu - - ifn gene were introduced into the nuclei of oocytes or cytoplasm of grass carp to develop anti - disease transgenic grass carp breeding researches, combing the adva ntag e of hu - - ifn gene and breeding by genetic engineering, with an aim of finding out an effective way of solving antivirus of hemorrhagic virus of carp completely. in research of transgenic fish, hu - - ifn gene ( recombination gene ) is cutdown and introduced into the nuclei of oocytes or cytoplasm of grass carp at one - cell or two - cell stage via micyoinjection by narashige micyoinjection apparatus

    本研究的目的在於以人的-干擾素基因（ ifn - ）作為目的基因，與鯉魚-肌動蛋白基因啟動子在體外重組，利用原核顯微注射轉基因技術將人-干擾素基因導入草魚基因組而開展的抗病轉基因草魚育種研究，其結合了干擾素和基因工程育種抗草魚出血病病毒的優點，以期獲得對草魚出血病具有天然抗性的轉基因魚，並在此基礎上培育出草魚抗病新品系。
  3. Niche breadth of four dominate populations at three age groups was studied by the methods of resource utilization ability and ratio. the result shows that : symplocos sectchuanensis is a typical gengeration species whi ch resource utilization ability is strong, and distribution is wide. meanwhile, go rdonia acuminata, castanopsis fargesis and pinus massoniana specialized at some d egree in resource utilizationm, their distribution is limited. especially, the ju venile of pinus massoniana specialized outstandingly. with the devlopment of pinu s massoniana, which is the pioneer population in mt. jinyun, the environment become s unfit to it ' s juvenile. it turns to needle and evergreen broad - leaves mixed fo r est. because the tolerance toward shading of gordonia acuminata is lower than tha t of castanopsis fargesis, gordonia acuminata will be substituted by castanopsis fargesis and other evergreen broad - leaves species are the edificators. the popul ation ' s ability of resource utilization is the inner factor of population distri bution and community succession. the distribution of light and the concentrate of nutrient ( such as n ) is the outer factors of community succession

    對縉雲山森林植被的4個優勢種群3個年齡級生態位寬度進行了研究.結果表明，川灰木利用資源的能力最強、分佈廣，為典型的泛化種.大頭茶、栲樹、馬尾松對資源的利用在一定程度上特化，分佈上有一定的局限性.馬尾松的中齡組與幼齡組特化現象十分顯著.縉雲山森林植被的先鋒種馬尾松的發展，導致環境的改變不適于其幼齡個體的生長，群落演替到針闊葉混交林階段，最後發展為以栲樹等為建群種的常綠闊葉林.種群的資源利用能力，是種群分佈與群落演替的內在原因，光因子和營養元素（如n ）是群落演替的主要外部動力
  4. . moreover, some samples appeared several active bands in the gel, which indicated the existence of different types of sod or multi - subunits of sod in these samples. the bacterial strain 276 is a gram - negative rod bacterium and there are more than 3 polar flagella, which observed after the gram ' s staining and flagellum staining

    同時，利用非變性聚丙烯酰胺凝膠（ page ）電泳后的凝膠顯色反應，發現一些樣品出現了多條活性帶，這可能是因為在這些細菌提取物樣品中含有不同類型的sod分子，或是同一類型的sod含有多個亞基組成。
  5. Here we managed to make cultured mice peritoneal macrophages be directly influenced by oligochitosan, and be stimulated by ifn - r before oligochitosan added, then measured the changes of gene transcription and translation level of both il - 1 and imf - a, respectively by methods of relatively quantitive rt - pcr and elisa. first, rt - pcr results showed that 18 hours was the most effective time and 40ug / ml was the most effective concentration of oligochitosan, then by the same method, confirm that 4hours is the most effective time and loou / ml is the most effective concentration of ifn - r stimulating. because ifn - r can enhance il - 1 and tnf - a gene expression of macrophages alone, so add ifn - r to microphages alone for 22 hours, then examined by rt - pcr, the results showed that il - 1 and tnf - a gene expression have no remarkable difference compared with the blank contrast group

    此外，由於ifn y單獨作用也可促進兩種細胞因子基因表達，故在巨噬細胞中加入ifn y單獨作用22h ，再經阿一pcr檢測，發現加ifn y的實驗組細胞的幾一lp和tnf a基因轉錄水平與空白對照組相比較無顯著性差異，可見，殼寡糖和ifn v對巨噬細胞il lp和tnf一口基因轉錄水平的影響在作用時間上無一致性，在殼寡糖作用最適時間時，僅受ifn y刺激的巨噬細胞il lp和tnf q基因轉錄己下降至刺激前水平，因此可以認為， ifn y的加入僅起到對巨噬細胞預刺激使之處于敏感狀態的作用，有利於增強殼寡糖對巨噬細胞的作用。
  6. By increasing the h2 dilution ratio, it is found that atomic hydrogen can selectively etch amorphous phase and stabilize crystalline phase. from the study on the distance from substrate to catalyzer, choosing a proper distance can ensure the gas fully decomposed, while a relatively low substrate temperature can cause the nanocrystalline particles to lose mobility and keep their sizes. the pre - carbonization process can enhance the nucleation density and make the growth of high quality nanocrystalline p - sic films much easier

    實驗結果表明：隨著工作氣壓的減小，薄膜的晶粒尺寸有所減小；通過提高氫氣稀釋度，利用原子氫在成膜過程中起的刻蝕作用，可以穩定結晶相併去除雜相；選擇適當的熱絲距離能保證反應氣體充分分解，又使襯底具有較高的過冷度，是形成納米薄膜的重要條件；採用分步碳化法可以提高形核密度，有利於獲得高質量的納米- sic薄膜；襯底施加負偏壓可以明顯提高襯底表面的基團的活性，因負偏壓產生的離子轟擊還能造成高的表面缺陷密度，形成更多的形核位置。
  7. When the frequency approaches zero, the factor approaches zero correspondingly ; 2 ) the amplitude of interaction factors changes with the incident angle of rayleigh waves and reaches maximum when is zero. moreover, with the increase of, the wave period shortens apparently ; ( 3 ) the amplitude of interaction factors decreases as the pile spacing increases and approaches to zero when the pile spacing is 15 ; 4 ) the amplitudes of interaction factors increase clearly with the increasing stiffness ratio of pile to soil ; 5 ) the lat eral seismic response of fixed - head pile groups is much smaller than that of free - head pile groups. moreover, the pile - group effects induced by rayleigh waves can be neglected ; 6 ) the lateral seismic response of piles at different location differs from each other

    得到了以下結論： 1 ）樁的相互作用因子隨頻率呈周期性變化，在振動頻率比較低的情況下，樁的橫向相互作用因子也較低，當頻率趨近於零時，相互作用因子也趨近於零； 2 ）樁的相互作用因子的幅值隨瑞利波入射角度的變化而變化，在= 0情況下幅值最大，且隨入射角度的增加，波動的周期明顯縮短； 3 ）樁的相互作用因子的幅值隨著樁與樁間距的增加而減小，至s d = 15時，樁的相互作用因子基本趨近於0 ； 4 ）在頻率比較低時，相互作用因子幅值隨樁土相對剛度比的增加而顯著增加； 5 ）樁頂固接可以有效地降低群樁的橫向地震響應幅值，由瑞利波產生的群樁效應可以忽略不計； 6 ）群樁中不同樁位的樁的橫向地震響應是不同的，每根樁所在的樁位對其橫向地震響應有很大的影響；刀樁數的增加並不能減小樁的橫向動力響應。
  8. First, we examine whether the momentum strategies and contrarian strategies can create significant profits under different formulation horizons and holding horizons, whether past factors ( market return, characteristic of individual stock ) can provide an important implication about the profits of momentum and contrarian strategies. second, we discuss the reasons for the significant profits of momentum or contrarian strategies, including seasonality, cross - sectional risk factors, time - varying risk premium, industry momentum, and stock underreaction, overreaction, and random walk. third, we discuss the link of time series predictability of stock returns and momentum profits, including stock underreation, overreaction, delayed reaction, and time - varying risk premium

    研究目的有四：其一，探討中國股市執行慣性策略或反向策略的顯著獲利模式及與各狀態因子（市場及個股狀態）的關系；其二，全面分析中國股市慣性與反向效應之潛在成因，包括截面風險因素、季節因素、時變的風險溢價、行業慣性效應以及行為金融模型與conradandkaul （ 1998 ）的隨機遊走觀點之爭論；其三，構建非效率市場之股票價格運動方程，並基於此，規范地演進慣性效應之時序生成途徑，包括反應不足、過度反應、滯后反應以及風險溢價的時變性；其四，探討中國股市中投資者的特殊信息反應模式，並以此來解讀中國股市的中短期過度反應與反應不足的現象，以及個股間的超前一滯后關系的表現模式及形成機理。
  9. Evidence suggests that the prognostic ability of the new model with high stability, when hidden nodes changing nearby input nodes and training times changing at the certain extent, is significantly better than traditional step wise regression model mainly due to the new model condensing the more forecasting information, properly utilizing the ability of ann self - adaptive learning and nonlinear mapping. but the linear regression technique only selects several predictors by the f value, many predictors information with high relative coefficients is not included. so the new model proposed in this paper is effective and is of a very good prospect in the atmospheric sciences fields

    進一步深入分析研究發現，本文提出的這種基於主成分的神經網路預報模型，預報精度明顯高於傳統的逐步回歸方法，其主要原因是這種新的預報模型集中了眾多預報因子的預報信息，並有效地利用了人工神經網路方法的自組織和自適應的非線性映射能力；而傳統的逐步回歸方法是一種線性方法，並且逐步回歸方法只是根據f值大小從眾多預報因子中選取幾個預報因子，其餘預報因子的預報信息被舍棄。
  10. Under the direction of chinese soil taxonomy, part purple soils developed on the purplish standstones of j2 # j3 in sichuan basin were systematically studiedaccording to natural landscape, profile modality and quick - test, applying to methods statistic analysis and system integration, main affecting factors, indexs of soil series taxonomy and retrieval orders were systematically discussed. the results showed : 1 ) organic substance, total nityogen, total phosphate, total potassium and particle size composition were distinctly related with many soil characters. organic substance, calcium carbonate, available phosphate # size composition were much different in all swatches. besides, soil structure and the depth had profound affection to it. 2 ) affecting factors : soil structure, texture style and organic substance phosphorous

    本文以土壤系統分類理論為指導，以四川盆地侏羅系蓬萊鎮組、沙溪廟組和遂寧組紫色巖上發育形成的部分紫色土為研究對象，利用spss統計軟體相關功能，結合供試土壤的自然景觀、剖面形態和室內測定的理化性質，對土系分化的影響因子、土系劃分指標和檢索順序進行了系統的探討，結論如下： （ 1 ） 、供試紫色土中有機質、全氮、全磷、全鉀和顆粒組成與多個土壤性質均呈顯著或極顯著相關；有機質、碳酸鈣、有效磷、顆粒組成等性質在供試土壤方差分析中變異系數均較大；土體構型及土體的深度對土壤性質也有深刻影響。
  11. There are distinct changes about shifts or intensity in bulk plasmon, surface plasmon, and interband electron transitions losses as a result of oxidation of specimens, and adsorption and oxidation processes can be studied through these changes. at room temperature, the formation of oxide layers on uranium and uranium - niobium alloys were found to occur rapidly upon exposure to oxygen, and the resultant oxide in each case was near - stoichiometric uo2. due to formation of niobium oxide in uranium - niobium alloys, the diffusion of o ~ ( - ) ( o ~ ( 2 - ) ) and u ~ ( 4 + ) in the interface region was prevented, and the corrosion resistance of uranium - niobium alloys to oxygen is greatly enhanced by alloying with niobium

    研究結果表明：清潔表面鈮和鈾的體等離子體振蕩所造成的電子能量損失的實驗值與理論計算值較為符合；隨著氧化程度的加劇，表面等離子體（ sp ） 、體等離子體（ bp ）以及價帶電子躍遷所造成電子能量損失的譜峰發生了明顯的連續偏移或強度的變化，這些變化可以用來分析鈾及鈾鈮合金的初始氧化過程；室溫下，鈾及鈾鈮合金很容易與氧作用，最終結果，鈾僅氧化為二氧化鈾，另外，在鈾鈮合金氧化過程中，因為有鈮的氧化物存在，不利於氧和鈾在界面擴散，增強了鈾鈮合金抗氧化性能； eels能獲得樣品表面的信息比aes更為表面，更為靈敏，但由於eels的譜線過于集中，主要在幾十ev以內，也有不容易區別和解譜的不足。
  12. The research respecting to ec based on xml data exchange is still in the initial phase in china. this dissertation aim to research and design an b2c e - commerce platform based on xml data exchange, mainly to solve how to imbed a xml document in a asp program, to produce xml documents involving different data sources by using asp dynamic situation, to screen the structure differences of every data sources and offer the customer a unified inquiry method and inquiry interface, and also solve how to real ize the separation of data content and display format using extensible stylesheet language ( xsl ), and finally to realize the personalized display

    我們國家在基於xml數據交換的電子商務方面的研究還處于剛剛起步階段，因此本文就基於xml數據交換的b2c電子商務系統開發作了一些有益的研究，主要解決在結合xml與asp開發電子商務系統中，如何將xml文檔嵌入asp程序，利用asp動態生成包含多數據源的xml文檔，屏蔽各種數據源結構上差異，為用戶提供一個統一的查詢手段和查詢界面；如何利用xml的可擴展樣式語言xsl實現數據內容與顯示格式的分離，從而達到個性化顯示的目的。
  13. The results suggested : a ) normal group and problem group differ greatly in three dimensions ( i. e., individual life values, social life values, and authority values ) and ten factors. compared with the normal group, the problem group are characterized as passive, not good at human intercourse, fatalistic, superstitious, less independent, less keen on pursuing knowledge, less likely to be honest and keep promises, indifferent to others, less willing to conform to tradition, and self - centered

    結果發現： 1 ）正常人群和問題人群在價值觀的個人生活價值取向、社會生活價值取向和權威意志取向3個維度（二階因子）和10個一階因子上存在顯著性差異，與正常人群比較，問題人群的價值觀具有以下一些特點：個人生活觀念消極被動，社會生活觀念不利於人際交往，宿命，相信超自然力量，獨立進取性差、求知慾望低、誠實守信差、社會同情缺乏、反傳統、自私。
  14. Factor analysis, frequency analysis, means analysis and one way anova analysis are adopted to illustrate the job satisfaction issue in hotel industry. the sixth part is the conclusion part. relevant suggestions on how to improve job satisfaction of hotel employees and how to scientifically conduct job satisfaction survey are discussed in this part

    第五部分為實證研究部分，基本介紹了問卷的人口統計因素，對問卷的信度和效度進行了分析，並利用因子分析、描述性分析以及差異分析的方法，對數據進行闡述，總結了飯店員工滿意度的基本情況，並得出飯店員工的工作部門、職位、學歷、工作年限以及離職傾向等因素對員工滿意度有顯著影響的結論。
  15. The author found there are no significant differences in morphology construction of the same kind of male grasshopper on different vertical belt, but the 4 measured morphology indexes have more notable difference in the same kind female grasshopper through multiple analysis of variance. the author made further analysis of the figures of morphology construction under the influence of different environmental factors by multiple regression, and selected the factors, which have principle functions

    作者通過多元方差分析，發現北坡不同垂直帶內同種蝗蟲雄性的形態結構不具有顯著的差異，而所測量的4種形態指標在同種雌性上表現為極顯著的差異；並利用多元線性回歸的方法對不同環境因子對蝗蟲形態結構的影響力進行了進一步的分析，篩選出了起主要作用的環境因子。
  16. Because the algorithm can adjust the rectification factor of fuzzy controller with the least means squares ( lms ) method, it not only can reflect the advantage of ruzzy logic in nonlinear system but also can improve the disadvantage of common fuzzy control method which is strongly dependent on human experiences

    不僅體現了模糊控制演算法對非線性系統具有的明顯優勢，而且利用lms自適應模塊調整模糊控制器的修正因子，改善單一模糊控制演算法對專家先期經驗的依賴缺陷。
  17. Along with increase of pressure, the parameters such as velocity, amplitude, main frequency and quality factor of seismic wave change big gradually, while change very weakly with the change of temperature. through testing research for artificial crack and pore model, we conclude that crack density, azimuth, opening and the change of pore have obvious influences on speed, amplitude, attenuation ( or quality factor ) and main frequency of seismic wave etc. but, seismic wave dynamic characteristics are more evident than its kinematical characteristics for the change of crack and pore parameters. therefore, it offers reliable experiment foundation for detecting crack and pore by seismic wave kinematical characteristics ( such as amplitude, attenuation and main frequency etc. )

    通過對人工裂縫和孔洞模型的超聲波實驗研究，可以認為：裂縫密度、方位、張開度和孔洞密度的變化對縱橫波的速度、振幅、衰減（或品質因子q ）和主頻率等參數均有明顯的影響，但裂隙參數的變化對地震波動力學特徵參數（振幅、衰減、主頻率等）的影響遠遠大於對運動學特徵參數（速度等）的影響，這為利用地震波的振幅、衰減和主頻率等屬性參數進行裂縫和孔洞特徵的檢測提供了可靠的實驗基礎。
  18. The study has systematically investigated the characters of spatial and temporal variation of temperature and precipitation in qinghai since 1961, and the results show that the trend rate of annually average of temperature in qinghai is significantly higher than that of the other places in the whole china, with qinghai acting as a sensitive area of china climate warming, and that precipitation efficiency is also clearly improved

    以配合西部大開發進行基礎性、戰略性和前瞻性研究，為青海省生態環境與社會經濟的協調發展，水土資源的可持續利用提供科學依據。本研究系統分析了1961年以來青海省氣溫、降水等氣候特徵因子的時空變化特徵，表現在青海高原年平均氣溫變化傾向率要明顯高於全國，是中國氣候變暖的敏感區，降水的有效性發生了明顯變化。
  19. The analytic results of the effects on the micromorphological structure of the film by the electrochemical condition ' s showed that the carbon is apt to improve the boundary combination between the scfs and the surface of the cathode and the seperation of the films, and that the micromorphological structure of the mpgcfs is greatly affected by the dring and the power voltage, which remarkably affluence ion move in swelling cathode film, and that higher temperature and concentration of cu2 + in the medium solution are also advanagable to the deposition of cu in scfs. the plot of deformation behavior of mpgcfs showed that the maximum strench ratio decreases and the brittleness increases due to the existence of the metal phase, and that the strengh trend of the composite films is fistly up and down followed with the content of metal phase because of the change of the role of the metal phase from acting as the physical cross - linking to weakening the films due to destroying the whole structure of the polymer

    另外它作為基體的另一個突出的優點是制備的溶脹復合膜（ scf ）中的溶劑與電解液中的溶劑相同都是水，克服了以前膜內外不同溶劑之間擴散的問題，結果使得電流最終趨於一種穩態，因此可以更好實現用電化學條件來控制mpgcf的形態結構；硬質石墨材料的多孔的結構和石墨本身的結構性能特點使得碳作為陰極材料時有利於溶漲復合膜（ scf ）與電極表面的結合以及膜的剝離，因此是作為陰極的理想材料；電化學條件中的乾燥程度和電壓能夠明顯的影響離子在膜內的遷移，從而對mpgcf的形態結構造成較大的影響；而提高反應溫度和增大電解液中銅離子的濃度也有利於銅在膜中的沉積生長。
  20. Moreover, the sio2 / tio2 composite thin film showed the lowest pl intensity due to a decrease in the recombination rate of photo - generated electrons and holes under uv light irradiation, which further confirmed the film with the highest photocatalytic activity at 700 c. when the calcination temperature was higher than 700 c, the decrease in photocatalytic activity was due to the formation of rutile and the sintering and growth of tio2 crystallites resulting in the decrease of surface area

    同時，此時sio _ 2 / tio _ 2復合薄膜的熒光光譜顯示最低的熒光強度，這表明此時薄膜中的光生電子和空穴的復合速率最低，因而更有利於物質的光催化降解。當熱處理溫度高於700時，武漢理工大學碩士學位論文薄膜的光催化活性下降，這是由於薄膜中晶相二氧化欽的燒結和成長導致樣品的表面積下降以及金紅石相的形成。
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