篩選性能 的英文怎麼說

中文拼音 [shāixuǎnxìngnéng]
篩選性能 英文
screenability
  • 篩 : 名詞[書面語] （植物名） sedge
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 能 : 能名詞（姓氏） a surname
  • 篩選 : dressing by screening; screen; preparation by screening; preparation; choose by means of a sift; ...
  1. The total rna was isolated from pokeweed ( phytolacca americana ) leaves using the method of guanidine isothiocyante and used as template to amplify the total length and deleted mutant pokeweed antiviral protein ( pap ) gene by rt - pcr and then the pap gene was cloned into pgem - t vector. the sequencing results showed that pap gene had 99. 9 % identity comparing with the pap gene nucleotide sequence reported by lin et al ( 1991 ). the iptg - inducible expression vector containing the pap gene was constructed and transferred into e. coli bl21 ( de3 ) - plyss

    將缺失型pap基因克隆到植物表達載體pbi121中，通過液氮冷凍法將重組質粒轉入農桿菌lba4404細胞中，然後採用葉盤法，在該農桿菌的介導下將pap基因導入普通煙草中，經過卡那黴素抗性篩選，最後獲得了轉pap基因的工程煙草植株，摩擦接種煙草花葉病毒（ tmv ） ，與非轉基因煙草相比，能夠推遲癥狀表現達2月之久，說明pap基因能夠在其它植物體內產生有活性的高抗病毒的蛋白質。
  2. Wild arabidopsis thaliana seeds were mutagenized with y - ray, and m2 populations were screened in the medium containing 200mmol / l nacl. 352 potential high - salt - tolerance mutants were selected from 80, 000 m2 seedlings, and 4 of this m2 mutants showed high - salt - tolerance in their m3 generation. this high - salt - tolerance mutants were backcrossed with the wild type arabidopsis thaliana

    在含200mmol lnacl的改良ms培養基上，通過對約80 ， 000株m _ 2代幼苗的篩選，共獲得352株根仍表現向地性生長或真葉不變為褐色的植株作為可能的突變體。
  3. Obtaining transgenic male sterile tobacco in order to prove that hsp70 antisense cdna can lead to male sterility, with plasmid 3301 + 650, 3301 + 651 we transformed 207 aspetic tobacco leaves by genegun bombarding and agrobacterium mediation ( 109 by genegun bombarding, 98 by agrobacterium ). by cultivating them in blotting media containing basta 0. 4 mg / 1, we get 181 resistant leaves ( 98 by genegun bombarding, 88 by agrobacterium mediating )

    獲得轉基因雄性不育煙草為了證實hsp70反義cdna能創造雄性不育，我們將3301 + 650和3301 + 651質粒用基因槍和農桿菌介導法轉化煙草無菌發芽的葉片，共207片（基因槍109片，農桿菌98片） 。在含basta0 . 4mg l的篩選培養基上進行篩選，得到抗性葉片181片（基因槍93片，農桿菌88片） 。
  4. The properties of calorifics, crystallinity, mechanism and shape memory were studied and the effect of structures on propt es were studied through the relationship between them

    在材料篩選工作的基礎上，合成了具有形狀記憶功能的線型聚氨酯彈性體。研究了它的熱學性能、結晶性能、形狀記憶性能、機械性能。
  5. Analyze and sift candidates ' information including candidates ' present station, negociation ability, the possibility and motivation of demission, salary standard. then select proper candidates accorded with the requirement and arrange interview

    對所有接觸到的候選人信息進行分析、過濾，包括候選人的崗位現狀、溝通能力、離職可能性與動機、薪酬水準等，篩選出基本符合要求的候選人，並安排面試。
  6. At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel

    首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。
  7. Firstly, we study the construction of emotion - speech template database, and analyze the common features such as pitch, energy and formant. after choosing the useful features by using fuzzy entropy effectiveness analysis, we get better performance with the application of neural network. in addition, we propose some more efficient features such as speech rate, pitch slope, mel - frequency cepstral coefficients and its transient parameters, and design a processing model based on vector quantization for cepstral features to fusing different features

    本文首先介紹了情感語音數據庫的建立情況，然後研究了基音頻率、振幅能量和共振峰等目前常用的情感特徵在語音情感識別中的作用，並且通過一種基於模糊熵的特徵有效性分析方法進行了有效特徵的篩選，應用人工神經網路建立了初步的語音情感識別模型，經過實驗發現特徵篩選后系統的識別效果有著一定程度的提高。
  8. In this paper, first strand cdna of 3abc gene was synthesized using template rna extracted from cells infected with fmdv. the complete 3abc gene about isoobp was amplified by pcr and ligated into pgem - t easy vector. after transforming e. coli dh5 a, ampicillin resistant colonies were isolated and plasmid dna was prepared and analyzed by restriction analysis and pcr. presence of the full length 3abc gene was verified by nucleotide sequence analysis and the plasmid containing the expected sequence was named as pgem - 3abc. comparing the aquired sequence of 3abc with that of reference strains, the homology is more than 99 percent. the pgem - 3abc was digested with sal i and bgl ii and ligated into xho i and bgl ii - digested expression vector ptriex - 4 neo. lt was identified by restriction analysis and pcr and sequencing that this fragment had a 17bp deletion hi the nucleotide sequence 708bp of 3abc gene, which happened to form a terminator codon behind 3ab gene, but it contained the complete open reading frame ( orf ) of 3ab gene. positive clones were selected and induced with lmmol / l isopropyl - d - galactoside ( iptg ), bacteria were detected by sds - page and western blotting after properly treated. the results showed that the 3ab gene expressed successfully in e. coli and 33. 5ku fusion protein can be recognized by the positive bovine serum of fmdv. the amount of target protein is over 26 % of the total bacteria protein by gel thin layer scanning analysis

    擴增產物連接到pgem - teasy載體中，轉化大腸桿菌dh5菌株，篩選氨芐青霉素抗性菌落，提取質粒經酶切鑒定、 pcr分析以及確證性測序證明，所克隆的1500bp左右的片段含有完整的3abc基因，與國外參考序列相比，同源性在99以上。將重組質粒pgem - 3abc和表達載體ptriex - 4neo分別用sal和bgl與xho和bgl消化后，亞克隆3abc基因至原核表達載體ptriex - 4neo中，通過酶切鑒定、 pcr擴增以及序列分析，發現克隆到ptriex - 4neo載體上的片段於3abc基因708bp處出現了17bp的缺失，碰巧在3ab基因后形成一終止密碼子，但3ab基因的閱讀框架完整，選出含有3ab基因完整閱讀框架的陽性克隆，用iptg誘導表達，收集菌液進行sds - page電泳、 westernblotting分析，結果表明， 3ab基因在大腸桿菌中成功表達，其表達產物為分子量33 . 5ku的融合蛋白，並能被口蹄疫病毒陽性血清識別。經薄層掃描分析，表達量占總蛋白量的26以上。
  9. From lots of models, this paper chooses seven models - model of mander, model of zhangxiuqin, model of sheikh, model of park, model of saatcioglu, model of fafitis and model of yuanjingen, which express the mechanics capability of confinement concrete perfectly and representatively. the paper modified some incorrect points of the models after studying them and some different hysteretic rules - hysteretic rules of park, hysteretic rules of blakeley, hysteretic rules of mander etc. were added to the models. on the base of above, the models were programmed and added in the program based on the column - beam element of the fiber model

    本文從大量的約束混凝土本構模型中篩選出具有代表性的七種模型，即mander模型、張秀琴模型、 sheikh模型、 park模型、 saatcioglu模型、 fafitis模型和袁錦根模型作為考察和研究對象，對部分模型局部明顯不當的地方進行了修改，然後在各模型中添加了不同的滯回規則，包括park滯回規則、 blakeley滯回規則、 mander滯回規則、張秀琴滯回規則、袁錦根滯回規則以及本文提出的滯回規則等，使其能適用於結構地震反應動力分析。
  10. The main results obtained from this work are as follows : 1. the penicillium. sp ds9701, a strain of degrading phb, was mutagenized by uv treatment

    本項工作主要是篩選能高效降解phb的突變株，並對其進行酶學性質的研究，主要結果如下： 1
  11. A randomized, controlled trial of antibiotic therapy or no therapy for diabetic women with asymptomatic bacteriuria and continued screening for bacteriuria eery 3 months reported, after a maximum of 3 years of followup, that antimicrobial therapy did not delay or decrease the frequency of symptomatic urinary infection, nor did it decrease the number of hospitalizations for urinary infection or other causes [ 72 ]

    一個隨機、對照試驗：抗菌治療或不治療無癥狀性菌尿的糖尿病婦女每3個月報告持續篩選菌尿，持續最長的3年，抗菌治療不能延續或減少癥狀性尿路感染的發生，也不能減少尿感的住院次數或同其他原因住院的次數。
  12. Welcome to hd biosciences hd biosciences is known for its expertise in functional assay development, high - throughput screening, high - throughput compound profiling, natural compound libraries, and natural compound - based lead screening

    在功能性藥物篩選模型構建高通量藥物篩選天然化合物庫以及以天然產物為基礎的藥物篩選等方面處于領先水平。
  13. The topics include : structure and function of genes, chromosomes and genomes, biological variation resulting from recombination, mutation, and selection, population genetics, use of genetic methods to analyze protein function, gene regulation and inherited disease

    主題包括：基因、染色體與基因組的結構和功能；來自於基因重組、突變和篩選的生物變異；族群遺傳學；運用遺傳學的方法分析蛋白質的功能，基因的調控和遺傳性疾病。
  14. For the complexity and diversity of the black - spot cause of formation, we find a method based on the rough set to determine the most important inducement of the black - spot, then we can repair the inducement in effect and save more time and money

    該文針對交通事故多發點成因的復雜性和多樣性，提出通過粗集來對公路交通中的不利因素進行篩選，找到形成事故多發點的最大誘因，從而有針對性地進行整治，能夠有效地節約時間和費用，避免不必要的人力、物力浪費。
  15. Metallophalocyanines ( mpcs ) are a kind of centrosymmetric planar organo - metallic molecules with an extensively delocalized two dimensional conjugated - electron system which show a relatively large third order optical nonlmearity, varying upon central metal atom substitution and other factors. other interesting properties of this molecule and many of its derivative products are their versatility, architectural flexibility and high environmental stability, which are very important requirements to implement photo - electronic applications

    因其骨架結構特徵和可通過選擇中心離子、軸向配體和在酞菁環上引入功能性取代基等方法進行分子篩選與組裝得到具有特殊的物理化學性質和光、電、催化等功能的材料，而引起化學家和材料學家的濃厚興趣。
  16. New product evaluation is a dynamic process and includes concept filtration, choosing the best product design, and evaluating the market sale results. this paper researches the new product evaluation management issues, which include new product evaluation plan, organization and control. it states the difficulties of new product evaluation and the research method which combines quantitative analysis with qualitative analysis

    新產品評價研究的主要內容是新產品開發過程中的新產品的構思篩選、性能選優、試銷結果評價，本文研究了新產品評價的計劃、組織和控制等管理問題，指出新產品評價所面臨的困難，提出以定性與定量結合為主的研究方法。
  17. The whole product passed through strictly test and aged screening to element and device, half - finished product, and its performance is stable and reliable

    整個產品經過了元器件成品的嚴格測試及老化篩選，性能穩定可靠。
  18. Aiming at the problems of reducing cost, increasing the separation efficiency of the solid and liquid, and improving the disperse rate and the photocatalytic effect of nano - tio2 when synthesizing in liquid phase, this dissertation, taking the natural minerals as carrier and the industrial metatitanic acid and the industrial black titanic liquid as the raw material, has studied the selection of the nature mineral, the methods and the conditions of the preparation of tio2 / mineral with nano - structure and the photocatalysis of the product

    本文針對在液相法制備納米二氧化鈦時，如何進一步降低生產成本，提高產物液固分離效率，以及改善二氧化鈦納米粒子的分散性和光催化效果等問題，採用天然礦物為載體，以工業偏鈦酸和黑鈦液為原料，從天然礦物篩選、功能材料制備工藝研究和制備方法比較、產品的光化活性等三個方面進行了研究。
  19. The main activities are included in constructing metagenomic library, screening functional genes, finding, purification and characterization of bio - activates

    主要從事深海環境宏基因組的構建、篩選功能基因及活性物質發現、分離、純化、鑒定。
  20. On these bases, the aim of this study was to develop effective adjuvants for enhancing protective immunity of np30, we performed a series of researches on nanoparticles, cytokines and traditional chinese medicines, including their effector mechanisms. 1

    在此基礎上，我們從疫苗佐劑研究入手，分別對納米顆粒、細胞因子和中藥進行系列研究，旨在篩選出能提高np30誘導保護性免疫作用的疫苗佐劑，並對其作用機制進行初步探討。
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