缺中子的核 的英文怎麼說
中文拼音 [quēzhōngzidehé]
缺中子的核
英文
neutron-deficient nucleus-
( 3 ). there exists a deficiency of the axial symmetry rotor plus two quasi - particles model for odd odd nuclei that the vibration far away from the inversion point is smaller
( 3 ) .在研究奇奇核的二準粒子加軸對稱轉子模型中,存在著遠離旋稱反轉點兩端的劈裂幅度偏小的缺點。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。The lead researcher, joseph hibbeln of the us national institutes of health, and the bristol scientists, including professor jean golding, compared the amount of fish eaten by pregnant mothers with the development of their children up to the age of eight
對孩子的行為和智力的新的研究表明聽從了美國控制結核病的「建議」 ,或害怕汞中毒而不吃魚的婦女,可能缺少大腦發育所需的營養物質,從而損害到他們的孩子。After entry of wto, there are still many maladjustments in guangxi ' s seed industry, such as the weak foundation of sees industry development ; the unformed market of the seed industry for fair competition ; small - scale seed enterprises ; no systematic connection among the cultivation, breeding and marketing ; lower qualification of staff who work in the seed industry and with weak sense of laws, and lack of the knowledge in operating experiences in the international market and trade etc. yet the un - efficiency system, unclear property right in enterprises, the lack of an effective mechanism to promote the rational use of resources in the seed industry and the lack of such concept as " the government creates environment and enterprises create fortune " are the deep - seated causes of the problems in guangxi ' s seed industry. therefore, the key points for promoting development of guangxi ' s seed industry under the wto framework are to focus on the promotion of the developing capability of seeds " integrated products, constantly deepen reforms, to adjust various relevant factors in the system of the seed industry which is inconsistent with each other, and to establish a new - pattern system with evident characteristics of the time spirit in order to meet the requirements of the market economy. hereinto, the specific strategies and measures for promotion of guangxi ' s seed industry development under the wto framework include kee ping up reform and innovation of the system of the seed industry, executing of non - nationalization reform in state - owned seed enterprises, formulating and executing relevant supporting policies, the improving the legal system in the seed industry, increasing public financial support on the seed industry, promoting the integration of cultivation, breeding and marketing, strengthening human resource development, developing the main body of the seed industry ' s market and making proper conditions for the functions of seed associations in the seed industry development etc
研究結果認為:發展種子產業應該把著眼點放在促進種子整體產品的開發上;種子產業的發展依賴于能充分發揮整體功能的新型種業體系的構建,而目前廣西種業體系中的品種選育、種子生產加工、種子經營以及政府管理、公共支持和社會服務六個主要組成部分都存在明顯的缺陷與不足;廣西種子企業綜合競爭力總體處于較弱水平;面對wto ,廣西種子產業仍有諸多的不適應,突出表現在產業發展基礎薄弱、尚未形成可以公平競爭的種業市場、種子企業規模小、育繁銷脫節、種業人才素質不高、種子企業法律意識淡薄、國際市場運作經驗和國際貿易知識不足等多個方面,而體制不順、企業產權不明晰、缺乏促進種業資源合理流動的有效機制以及「政府創造環境,企業創造財富」的正確理念正是導致目前廣西種子產業不能適應入世需要的深層次原因;因此,以提升種子整體產品開發能力為核心,不斷深化改革,調整種業體系中不相協調的各有關因素,構建起符合市場經濟體制要求的具有鮮明時代特徵的新型種業體系,是wto框架下加快廣西種子產業發展必須堅持的指導思想;其中,加快種業體制改革和創新、實施對國有種子企業的非國有化改造、制訂落實有關扶持政策、完善種子法律法規體系、加大公共財政對種子產業的支持力度、推進育繁銷一體化的形成、加強人才培養與引進、壯大種業市場主體、實行重點突破戰略、發揮種子行業協會作用等等,都是wto框架下加快廣西種子產業發展應該採取的具體對策措施。We clone a 1. 3kb promoter sequence of the homologous gene in arabidopsis by pcr. this promoter is shown to direct the specific expression of the reporter gene, b - glucuronidase ( gus ), in trichomes of arabidopsis. promoter deletion analysis reveal that the region from - 300 - - 1 bp is sufficient to direct trichome - specific expression
對其進行缺失突變,構建5個缺失表達載體轉基因擬南芥,葉片gus定量測定分析表明- 300bp ? - 1bp序列就可以指導gus基因在表皮毛細胞中特異表達,說明這段序列可能含有指導此啟動子在擬南芥表皮毛細胞進行特異表達的核心序列。Analysis of the sequence variation of cytochrome b gene indicated that there is no evidence of insertions or deletions, i. e., they are all of identical length of 1143 bp in all the sequences of cytochrome b gene. further, the sequences can be fully translated into amino acid using chicken mitochondrial codon without nonsense mutations or intervening stop codons. the 1143 bp cytochrome b alignment contained 416 variable sites, of which 306 were parsimony informative sites with the strongest variable in third codon positions and less variable in first and second codon positions
細胞色素b基因序列變異分析表明: 1 )雁形目鳥類細胞色素b基因全序列長度一致,無插入和缺失:對照雞線粒體密碼子系統全序列能全部翻譯成氨基酸序列,無無義突變,全序列內部無終止密碼子; 2 )序列比對后1143加,含416個核著酸變異位點, 306個簡約信息位點,其中處於密碼子第三位的變異最大,第一位和第二位堿基的變異相對較小。In our culture condition, the lepcs express oval cell markers ck 19, ck 14, ov6 and oc. 10, but not oc. 2 and oc. 5. the cells also express c - met, the receptor for hepa tocyte growth factor ( hgf ). antigens traditionally associated with haematopoietic stem cells, including c - kit, thy - 1 and cd 34, can be expressed by oval cells
該細胞系是典型的上皮樣細胞,體外生長時成「鋪路石」樣排布;在電鏡下觀察,細胞核質比大,胞漿中除一些線粒體和核糖體外缺乏其他細胞器;在體外培養時細胞可以保持不分化狀態,表達卵圓膽管細胞的分子標志,如ck14 , ck19 , ov6 , ocComputer simulation is applied widely in nuclear material research. it can save abundant money and time under the current situation that there is no high energy neutrons for research
在核材料的研究領域中,計算機模擬技術得到了廣泛的應用,這不但是為了節省經費和時間,更主要的是因為對開發未來的聚變堆材料還缺乏高能聚變中子。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。Nuclear scattering results in the displacement defects in material as well as the deflection of proton from its incident direction ; electronic stopping of protons acts as the most important factor in the degradation of incident proton energy, resulting in electronic effects such as single event upset
核散射是導致入射質子運動方向改變以及缺陷產生的主要因素,入射質子與核外電子云的作用是高能質子在材料中慢化的主要因素。核反應在宇宙高能質子引起的單粒子效應中有重要影響。In this article, the advanced structure of hybrid peptide mae is predicted with software. the fused gene mae - intein - cbd is amplified by pcr with the template of plasmid ptyb2, and then it is cloned into expression vector plasmid ppic9k. after verified by restriction enzyme analyzing and sequencing, the vector is transferred into the eukaryotic host ( yeast pichia
並以已構建的載體ptyb2 - mae為模板,通過pcr擴增出融合基因mae - imein - cbd ,將其克隆于表達質粒ppic9k中,通過鑒定並測序正確后,電轉化真核表達宿主? ?畢赤酵母菌株gs115 ,通過營養缺陷型培養基篩選重組子,再利用g418抗性篩選出整合有多拷貝外源基因的重組子。Beth showed 56 % identity to the opud of bacillus subtilis and belonged to bcct family. its putative promoter region was highly homologous to b - dependent promoter of b. subtilis. a 2. 6 kb fragment including the beth gene was subcloned into puc18 and transformed into the e. coli mkh13, colonies appeared on the plate of the selective m9 medium
將包括整個beth基因orf框及可能的啟動子核苷酸序列在內的2 . 6kb的片段克隆到puc18載體上,轉入到大腸桿菌甘氨酸甜菜堿缺失株mkh13中,使該菌株能夠在含甘氨酸甜菜堿的高鹽m9培養基上生長,而對照實驗不能生長。Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system
該系統可通過沉積參數的精確控制,以控制沉積過程,減少金剛石膜生長過程中的缺陷,並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學氣相沉積過程;利用微波對材料的選擇加熱特性,通過構造等效方程,並首次將電磁場攝動理論引入到mpcvd的基片加熱材料的設計中,建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝動模型,為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備,並對基片加熱材料進行了設計和優選,以獲取大面積均勻的溫度場區,甚至獲得大於基片臺尺寸的均勻溫度區;作為研究重點之一,開展了微波等離體化學氣相沉積金剛石的成核與生長研究,系統地研究了在( 100 )單晶硅基片上mpcvd沉積金剛石膜的實驗過程中,基片預處理、甲烷濃度、沉積氣壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響,分別用raman光譜、 x射線衍射( xrd ) 、掃描電鏡( sem ) 、紅外透射光譜( ir ) 、原子力顯微鏡( afm )對薄膜進行了表徵,確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。Mohammad prehdi akhunzadeh, iranian ambassador to the iaea, says that there was " no consensus " on referring iran to the security council. " the main question here was whether to refer iran to the un security council. there is no consensus whatsoever to that effect and i believe that that is a message that if there is to be a solution then it should be through consensus.
另據伊通社報道,伊朗駐國際原子能機構高級代表瓦伊迪當天在維也納說,伊朗在核問題上的立場非常堅定,而且歐盟欲將伊朗核問題提交聯合國安理會的動議本身也缺乏法理依據,在機構理事會內部遭到了普遍反對,尤其是中國和俄羅斯的反對。In this article, the misgurin gene and adaptor are synthesized according to the amino acid sequence reported in the genebank and the need of construction and expression. adopted a new strategy, multiple copy gene is ligated in the same direction. and then it is cloned into expression vector plasmid ppic9k
本文根據genebank登錄的氨基酸序列,同時考慮構建和表達的需要,化學合成了misgurin基因和接頭,採用一種新的策略,在體外將基因多拷貝同向串連,並將其克隆于表達質粒ppic9k中,通過鑒定並測序正確后,電轉化真核表達宿主? ?畢赤酵母菌株gs115 ,通過營養缺陷型培養基篩選重組子,再利用g418抗性篩選出整合有多拷貝外源基因的重組子。In detail, they are bit - interleaved coded modulation ( with iterative decoding ), low - density parity - check codes and stf technology. by the performance analysis of bicm ( - id ), which can make code and modulation optimal separately, and achieve maximum possible coding diversity as well as modulation gain, guidelines for its design and an easy algorithm for siso are proposed. design of capacity - approaching of ldpc codes and efficient encoding of them as well as several kinds of its decoding algorithms are investigated
具體的講,就是討論了基於比特交織的編碼調制技術,並給出了映射方式的設計準則以及核心模塊siso的一種簡單的f - map演算法;研究了編碼最小漢明距隨碼長線性增加的ldpc碼的幾個方面的問題,包括接近香農限碼子集的度分佈對的設計、有效編碼器的實現和各種譯碼演算法的優缺點,並對基於ldpc碼的bicm應用於ofdm傳輸系統中的性能進行了模擬。Similarly, biologists have assumed that the absence of introns from prokaryotes was a consequence of intense competitive pressures in the microbial environment : evolution had pruned away the introns as deadweight
生物學家也以類似的想法,假設原核生物之所以缺乏插入子,是因為微生物處于競爭激烈的環境中的結果:插入子的重擔被演化給修剪掉了。It considers point, line and interfacial defects in the context of structural transformations including annealing, spinodal decomposition, nucleation, growth, and particle coarsening
其中會討論在退火、旋節點分解、成核、成長以及粒子粗粒化等結構轉變之過程中,所涉及的點、線和面的缺陷。System of production schedule management is one of the role system in erp, meanwhile, is the system of spending most time and most difficult to succsess during system analysis and actualize, the major reason is that the system is short of flexibility
生產計劃管理子系統是erp系統中的核心子系統之一,同時也是在企業系統設計與企業實施過程中,花費時間最多最不成功的一個子系統,其主要原因就是系統缺乏柔性。Passivation on the surface of nanocrystalline zno was responsible for an energy potential high enough to prevent surface states trapping the electrons or holes photogenerated, it should block the pathway to form the luminescence centers as the vo * * and [ vo *, electron ] or [ vo * *, two electrons ] complex. a new visible luminescence mechanism was presented
納米氧化鋅( zno )表面的鈍化實際上是在氧化鋅( zno )的核和表面之間形成了大的勢壘阻止表面缺陷捕獲光生電子或光生空穴形成發光中心vo * *和[ vo * , electron ]或[ vo * * , twoelectrons ]復合體,同時,提出了一種新的可見發光機制,很好地解釋了實驗中觀察到的現象。分享友人