頻率誘導 的英文怎麼說

中文拼音 [bīnlǜyòudǎo]
頻率誘導 英文
entrainment of frequency
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 誘 : 動詞1. （誘導） guide; lead; induce 2. （使用手段引人隨從自己的意願） lure; seduce; entice
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 頻率 : frequency; rate
  • 誘導 : guide; lead; induce; guidance; induction
  1. In this study, the stem segments of new shoot with axillary buds of well - growth tetraploid black locust trees were used as explants. the effects of different basic mediums, different hormone kinds and their concentrations ratios, different sucrose concentrations on calli induction, buds differentiation and rooting in the process of establishment of high frequency regeneration system of tetraploid black locust were studied. on the base of high frequency regeneration system, the effects of various factors on transformation efficiency of badh mediated by agrobacterium tumefaciens were discussed in the light of gus histochemical assays

    本實驗首先以生長良好的四倍體刺槐優株上當年生新梢的帶腋芽莖段為外植體，研究了在四倍體刺槐高頻再生體系的建立過程中不同基本培養基、不同激素濃度及其配比、不同蔗糖濃度對愈傷組織的誘導、芽的分化及生根的影響；然後在得到高頻再生體系的基礎上，通過農桿菌介導法轉化甜菜堿醛脫氫酶（ badh ）基因，以gus染色組織分析為依據探討了影響轉化效率的各種因素，建立了高效、可重復的基因轉化體系，為四倍體刺槐目的基因的導入打下了基礎。
  2. Pre - differentiation and proper partial desiccation of calli before transferred to regeneration medium was found to apparently improve the frequency and quality of plant differentiation. with our optimized culture condition and treatment style, induction frequency of pei ' ai64s and 9311 can be reached 62. 45 % and 85. 30 % respectively and after 3 months of subculture calli can remain high - quality embryogenic state, when high - quality embryogenic calli after two times of subculture were used as acceptor, callus differentiation frequency can arrive at 85. 5 % and 87. 7 % respectively

    採用我們優化后的培養條件與處理方式，培矮64s和9311愈傷組織的誘導頻率分別可達到62 . 45和85 . 30 ；繼代培養時間達三個月左右仍能保持較好的胚性生長狀態；對于繼代兩次胚性生長狀態良好的愈傷組織分化頻率分別可達到85 . 5和87 . 7 。
  3. High frequency shoot regeneration from giant duckpear leaves in vitro

    大鴨梨葉片高頻率不定梢再生誘導研究
  4. This method iswith clear physical meanings, and the result can be checked by various methods. thel2 - induced norm of the system can also be obtained from the frequency response

    從頻率響應的增益還可讀得l _ 2誘導范數，所以較提升法簡單、實用。
  5. The hypocotyl segments of cabbage were used as the explants and cultured on a ms medium supplemented with plant hormone, which was established a cabbage regenerated system. the differentiation rate of adventitious buds was above 80 %. in this study, ubic gene was transformed to cabbage through agrobacterium mediated system

    同時，採用甘藍無菌苗的下胚軸為外植體，以ms為基本培養基，分別用直接分化再生系統和愈傷再生系統誘導不定芽的分化，建立了高效穩定的再生系統，不定芽分化頻率達80以上。
  6. Linear frequency modulated continuous wave ( lfmcw ) radar has many characteristics of simple structure, small volume, light weight, low cost, low transmitter peak power, short wavelength, thus it is especially suitable to be used in radar image, research of target characteristic, end control and guide, battlefield spy, scene watch etc. and more people in the world interested in it, it will have a wide prospect

    線性調頻雷達具有結構簡單、體積小、重量輕、造價低、發射峰值功率低、波長短等一系列優點，特別適合於雷達成像、目標特性研究、末制導、戰場偵察和場面監視等領域，目前已受到國內外的廣泛重視與研究，應用前景十分誘人。
  7. Using this system, we have studied matrine - inhibittory effect and trifluoperation - neuroprotection effect in hippocampal slices, also discussed the mechanism of long - term potentiation using anesthetic rats. the experiment results showed that matrine can inhibit the hyperactivity induced by penicillin sodium in dosage by changing the relative parameters of field potential ; trifluoperation can alter ps change with the time, enhance the degree and the ratio of ps recovery, then minis the hypoxic injury ; high frequency stimulate can increase ps amplitude and epsp slope for long time, buildup the in / out function of nerve cells, and enhance synaptic plasticity

    結果表明，苦參堿能夠劑量依賴性地抑制青霉素誘導的神經元順向信號傳導激活過程，使細胞外記錄到的場電位各個參數發生相應改變；三氟拉嗪可以改變ps的時相變化，提高ps的恢復程度和恢復率，減小了神經元因缺氧引起的不可逆損傷；高頻刺激（ highfrequencystimulate ， hfs ）可以長時間的增強ps的幅度和epsp的斜率，進而增強神經元的輸入輸出功能，增加了突觸的可塑性。
  8. It showed that the induction efficiency of the resistant calli were the same among all explants of different age, but the embryos on the calli from explants of 7 days appeared earlier than those from explants 11 and 30 days. in order to compare the resistant calli induction efficiency, petioles and hypocotyls were excised from 30days aseptic seedlings to transform with pbinctbs under the same condition. the resistant calli induction efficiency of petioles was higher than those of hypocotyls. a more detailed analysis of the different types of explants showed that the number of pcr positive plants induced from petioles was higher than that from hypocotyls

    在相同條件下的轉化實驗中，發現不同苗齡的外植體的抗性愈傷的誘導頻率基本相同:還進一步研究了胡蘿卜同一苗齡不同部位的抗性愈傷形成率，同時用3od苗齡（照光3周）的葉柄和下胚軸做轉化實驗，發現葉柄的抗性愈傷形成率高於下胚軸的抗性愈傷形成率，進一步的實驗發現，由葉柄誘導的苗子的陽性率高於由下胚軸誘導的苗子的陽性率，此結果和pawlicki的結論是一致的。
  9. Recent studies have shown that the quantum coherent population trapping, electromagnetically induced transparency, index enhancement without absorption, etc. these new effects have great potential for the control of the coherence properties of a medium, the production of high frequency lasers, the information storage and high precision measurements

    最近的研究表明，原子相干產生很多新的效應，如相干布居捕獲、無反轉激光、折射率增強、電磁誘導透明、電磁誘導吸收等。這些新效應對光學介質相干性質的控制、高頻激光的產生、光信息存儲和高度測量等方面具有巨大的應用前景。
  10. Recent studies have shown that the quantum coherence and interference have led to a lot of new effects such as coherent population trapping, electromagnetically induced transparency, index enhancement without absorption, etc. these new effects have great potential for the control of the coherence properties of a medium, the production of high frequency lasers, the information storage and high precision measurements

    最近的研究表明，原子相干產生許多新效應，如相干布居捕獲、無反轉激光、電磁誘導透明、折射率增強等。這些新效應對光學介質相干性質的控制、高頻激光的產生、光信息存儲和高度測量等方面具有巨大的應用前景。
  11. Different maize genotypes showed different ability of emberyogenic calli establishment and plant regeneration. mol7, ji846, 81162 and 7922 had the most high rate of induction, ye 107, 5416 and 444 were high, but longkang11 and dongnong46 had little rate of it ; the concentration of 2, 4 - d had an enfluence on the mopha, growth and differentiation of calli

    玉米胚性愈傷組織的發生是受遺傳因素控制的，不同基因型其胚性愈傷組織發生率及植株再生能力存在顯著差異，其中以81162 、吉846 、 7922 、 mo17的胚性愈傷誘導頻率較高，掖107 、 5416 、 444的誘導率較低，龍抗11 、東農46最低。
  12. 1. upon brief reviewing current mathematical and physical models and mechanisms for electrorheological effect, the theoretical analysis of the dielectric relaxation of electrorheological fluids and the frequency - inducing characteristics for electrorheological effect are conducted. based on statistical thermodynamic analysis and osmotic pressure calculating of an electrorheological fluid complex system, phenomenological theory is adopted to evaluated phase reparation characteristics. thus critical factors corresponding to experimental results are introduced

    在簡要評述現有電流變效應模型及機理的基礎上，按非均勻介質對雙相復合懸浮液的電流變效應進行理論分析，研究了電流變效應頻率誘導特性；基於復合系統滲透壓的計算，採用統計熱力學唯象理論，討論了電流變效應的相分離特徵，獲得了與實驗吻合的臨界參數；首次將定向滲流模型應用於電流變體臨界體積濃度的分析，得出一個描述電流變流體特徵而不隨外加電場變化的臨界體積百分數為0 . 37 。
  13. 4. in the cultivation, wheat genotype, concentration of hormone in the medium and the kind of explant are the three key factors that influence frequency of induction embryogenic calli and plant regeneration

    小麥離體培養中，基因型、培養基激素濃度與外植體類型是影響小麥胚性愈傷組織誘導和再生頻率的3個主要因素。
  14. In all treatments of aseptic seedlings under 4 for different days, the treatment under 4 for 4 days produced the most amount ( 80 % ) of resistant embryogenic calli induced from hypocotyls

    其中幼苗經4ac處理4天，從其下胚軸所獲得的抗性愈傷最多，其抗性愈傷組織的誘導頻率為80 % ，高於其它各處理的抗性愈傷組織的誘導頻率。
  15. Mature embryo - derived calli of japonica rice ( oryza sativa l. ) cultivars nipponbare were transformed using agrobacterium tumefaciens strain agl1 carrying a binary vector pcas04 harboring the marker gene, neomycin phosphotransferase gene ( nptii ), driven by a promoter from the ubiquitin gene in maize, a promoterless p - glucuronidase gene near to the left border of t - dna for trapping gene and a strong promoter, rice actin - gb promoter, near to the right border of t - dna as activation tagging. in this system, co - cultivation was simplified, special selection stages and pre - regeneration stage were omitted, the whole process was almost under continuous light at 30 ? except co - cultivation and transgenic plants began to generate only after 7 weeks calli were induced

    在一步轉化系統中，光照高溫條件下培養的水稻愈傷組織從誘導開始經過4周時間就可以達到轉化實驗的要求，並且簡化、優化了整個共培養過程，省去了一篩、二篩和預分化步驟，只用7周的時間就可以初步得到再生轉化植株；共191塊愈傷組織得到125塊抗性愈傷組織，轉化頻率達到65 . 4 ，最後共得到99棵獨立來源的再生植株，抗性愈傷組織再生頻率達到79 . 2 。
  16. No callus occurred from hairy roots on medium lacking 2, 4 - d. high concentration ( l. 0mg / 1 ) of 2, 4 - d could induce much more calli, but it obstructed the growth of calli and followed buds differentiation. the result of callus induction showed that the optimum medium for callus induction was ms + 0. 5mg / l 2, 4 - d + 0. 5mg / l 6 - ba and ms + 0

    愈傷組織誘導最佳培養基為： ms 05mg l個d 05mg l ba ，愈傷組織生長的最佳培養基為ms 0ling 12 ， 4 d cling 16ea ；愈傷組織能在不含激素的培養基上自發地分化出不定芽，但分化頻率較低，而6ea對不定芽的分化作用較明顯，配合使用6習a和naa對芽的誘導及得芽率較好，不定芽誘導的最佳培養基為ms 10mgilnaa 05mg lia培養基。
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