無定向化 的英文怎麼說

中文拼音 [dìngxiànghuà]
無定向化 英文
astatisation
  • : 無Ⅰ動詞(沒有) not have; there is not; be without Ⅱ名詞1 (沒有) nothing; nil 2 (姓氏) a surn...
  • : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
  1. With the view of strenthening the national power and increasing the comeptition, in the international markets, china follows the trend, initiating the course reform, refering to the reform, the formulating national stardard courser ( teaching prog ) would play a guiding role without doubt in teaching and studying, so it is essential to make a compatision and study in annual teaching programme in maths, finding out the variation and difference

    其中涉及的國家課程標準(教學大綱)的制疑對廣大師生有著重要的導作用。所以有必要對歷年教學大綱進行比較、研究,發現其中的變、差別,對高中數學教師從事教學工作有切實的指導意義,對國家正在進行的課程改革也有一的輔助作用。
  2. In all kinds of complicated network, oriented linking and unlinking, communication frequency resource is strained, and bandwith to transmitting audio frequency signal is too restricted, complicated and fluky, while audio frequency data exponential have been increased in the last several years. under the circumstances, based on the research of predecessor, this paper studies wavelet analysis ' s maths gist and practices significance on signal process, and puts forward a optimized wavelet package condensation arithmetic to process audio frequency data, which gives attention to coding efficiency, multirate and compression delay. simulation experiment on the arithmetic has been done by matlab

    針對連接和面連接的各種復雜網路環境下,通信頻帶資源緊張,音頻傳輸帶寬有限且復雜多變,而各種音頻數據又日益增多的局面,本文研究小波分析在信號處理方面的數學依據和在數據壓縮方面的實際意義,在前人不斷工作的基礎上,提出了一種優小波包變換編碼方案用於音頻數據的壓縮演算法,兼考慮了編碼效率、多碼率和壓縮時延多個方面,並在matlab環境下做了模擬實驗,對各種音頻信號及多種小波函數做了模擬結果比較,實驗結果證明該演算法可以在一計算復雜度下可以很好地改進壓縮效果,達到多碼率下實現實時編解碼的過程,在高速dsp晶元等硬體設備支持下,可以有效應用於實際復雜多變信源編碼。
  3. These results indicate that the magnetic field should have upper stability when the particle beam is low polarized while the requirement of the stability of the magnetic field can be lowered when the particle beam is high polarized in the experiment of producing the polarization of the particle beam. and the complementariness can be used as a negative feedback to stabilize the polarization of particle

    這一結果表明,在產生離子束極的實驗中,在離子束低度極的前期階段,磁場應具有較高的穩性,而在離子束極度較高的後期階段,磁場的穩性要求可以放鬆;自旋的縱分量的規漲落和橫分量的規漲落的互補性有可能用來做成穩離子極的負反饋。
  4. At the same time, on the basis of above results, the stability problem of the polarization of particle self - spin is discussed in irregular magnetic field of accelerator. the discovery that the low degree polarization system is very sensitive to the irregular magnetic field while the high degree polarization system is very stable is found. the irregular fluctuation of the vertical ponderance is complementary to that of the horizontal ponderance due to the self - spin conservation

    同時,在此基礎上,利用su ( 2 )代數動力學方程研究了加速器中帶自旋離子的極對磁場的含時規擾動的穩性問題,發現:低度極的系統對磁場規擾動十分敏感,而高度極的系統對磁場規擾動十分穩;自旋守恆導致自旋的縱分量的規漲落和橫分量的規漲落存在著互補性。
  5. Liquid cryatal also use on the public nuisance of chemical industry, the oriented polymer of macromolecular reaction, the nondestructive evaluation and microwave determination of aviational machine and metallurgic product, checking skin cancer in medicine, body temperature measurement, etc. it has showed the great superiority

    另外液晶在工的公害測、高分子反應的聚合、航空機械及冶金產品的損探傷和微波測、醫學上的皮癌檢查、體溫測量等領域,也都顯示出其巨大的優越性。
  6. The result of md simulation means that : ( 1 ) the microstructure in the amorphous carbon has no obvious change, the slippage which is parallel to the fiber axes in the graphite slices of the pyc interphase was found ; ( 2 ) bulk moduli of every part of interphase diminished, young ' s moduli in all three direction of amorphous carbon diminished, young ' s moduli of the graphite slices in the direction of parallel to the fiber radial decreased, and ones in the direction of parallel to the fiber axes increased

    分子動力學模擬結果表明, ( 1 )界面相內部形碳部分微結構明顯變,石墨片層部分沿纖維軸滑移; ( 2 )界面相模量發生變,界面相區域各部分的體積彈性模量降低,形碳部分及石墨片層部分垂直於纖維軸的楊氏模量降低,平行於纖維軸的楊氏模量升高。
  7. At first, in order to prevent the premature convergence of genetic algorithm effectively, the author brings forward a novel dyadic floating - point supplementary mutation operator. then, simulating the natural evolution, the author presents a novel topology, unoriented - connected topology, for parallel genetic algorithm. in the end, an interval decomposed optimization method is brought forward for ipga, which can improve the optimization performance of the algorithm

    為提高演算法的性能,作者對遺傳演算法進行三種改進:首先,為克服遺傳演算法早熟收斂,作者提出一種新的二元浮點補碼變異運算元;其次,模擬生物自然進模式,為并行遺傳演算法提出了一個新的并行拓撲結構- - - -拓撲連接;最後,作者提出一種區間分解優思想,來提高對最優解的搜索能力。
  8. Ammonia played a critical role in the vertical alignment of cnts, and the possible reason was that in 850 the atomic hydrogen decomposed from ammonia reacted with amorphous carbon to form volatile products to keep the metal surface clean, and mechanical leaning against neighboring tu bes established a morphology of vertical alignment

    當基體為單晶硅、催劑鎳膜厚度為20nm 、氨氣氣氛、生長溫度為850時,得到了生長的納米碳管。其原因可能是850時氨氣分解的氫原子和形炭生成了易揮發物質,從而保持催劑的活性使納米碳管依靠相鄰碳管之間的斥力生長。
  9. For the first time, we reported the barrier height of au / algan is 1. 08ev by analysis on various i - v curves under corresponding temperatures. 3 ^ we reported oriented polycrystalline gan on silica substrates using a new method named ga nitridation

    3 、採用金屬鎵層氮技術,利用我們自行改造的熱蒸發設備和氨氣氮設備,在形石英襯底上生長出具有擇優取的多晶gan ,取得了一些階段性的成果。
  10. The total rna was purified from the germ in the liquid by the guanidine isothiocyantehod method, then the total rna digested by dnase that had not rnase was used for rt - pcr. i change the magnesium ion dencity in the pcr system in order to optimize the pcr condition. at the end i selected the magnesium ion density as 1. 25 mm. the production of rt - pcr was inserted directionally into pgem ? z ( ampr ). the pgem ? z ( ampr ) was used to transform e coli jm109. i got a positive clone through culling and identificatin. the dna sequence inserted into pgem ? z ( ampr ) was sequenced and blasted with the cdna sequence of the # - mannanase mature peptide that got from genbank

    分取誘導培養液中的菌體,用異硫氰酸胍法提取總rna ,總rna再經rna酶的dna酶處理後用于rt ? pcr 。在pcr擴增目的基因時,通過優選擴增體系,使鎂離子濃度為1 . 25mm時rt ? pcr可順利地獲得目的基因,並能克隆到載體pgem ? 3z ( amp ~ r )中。用克隆載體轉宿主大腸桿菌jm109 ,通過篩選獲取陽性克隆子,對陽性克隆子進行酶切與pcr鑒,並對載體中插入的目的基因進行測序。
  11. The reactive power optimization compensation is to find the suitable compensation place and the best compensation capacitance by adjusting the generator bus voltages, transform taps and reactive compensation capacities in the condition of satisfying power load requirement, which can guarantee the secure and high quality power for consumers. the improved genetic algorithm is applied in this thesis according to the features of reactive power optimization of high voltage transmission bus, which are the non - linear problems with multi - variables and multi - restrictions

    電網功優補償是在有功潮流調度給的情況下,以負荷節點電壓和線路輸送功功率作為狀態變量,運用優演算法,調節發電機節點電壓、變壓器可調分接頭和功補償裝置,在滿足電力負荷的要求下,尋求合理的功補償點和最佳補償容量,保證電網能夠安全、優質地用戶供電。
  12. A comparative study and simulation of different control schemes, for the brushless motor variable - speed system, is presented. the simulation results show that, with the outer speed loop based on conventional proportional - integral controller, the dynamic performance of the system is not content, while with intelligence controller, the performance improves, and with variable - structure control with sliding mode, the system response influenced slightly by the vary of the system parameters

    本文還對器電動機雙閉環調速系統的不同控制方式進行了模擬比較,結果表明:採用常規的pi轉速調節器,系統的動態性能不是很好;採用簡單的轉速環智能控制器,系統的動態性能能得到一改善;採用轉速環滑模變結構控制器,系統的響應特性受系統參數變的影響較小,具有優異的動態性能。
  13. Because expressed in escherichia coli, ricin a chain is not degraded easily for its non - glycosylation. our experiments lay a foundation for the researches that rta conjugates a monoclonal antibody to synthesize immunotoxins and the immunotoxins are used for cancer - targeted therapy

    蓖麻毒素a鏈在大腸桿菌中表達,因糖基修飾,克服了進入體內后被迅速降解的缺點,為進一步與單鏈抗體基因嵌合表達形成單鏈免疫毒素,對腫瘤細胞進行導治療研究奠基礎。
  14. To some extent, the traditional institution of land use lead to some problems during the development of the urban spatial structure, such as the irrational land use structure, the disorder of the spatial layout of the city functional district and the infinite extend of the scale of the use land, etc. all levels government and academic circles are increasingly concerned about the optimization of the urban spatial structure by land - value since the reform and open and the transformation of land use institution from gratis to charge

    我國傳統的償或低償城市土地使用制度在某種程度上決了城市空間結構發展存在著城市土地利用結構不合理、城市功能區用地空間布局混亂和城市用地規模限擴張等一系列的問題。改革開放以來,我國土地使用制度由有償轉變,地價自然就成為優城市空間結構的重要因素,並越來越受到各級政府以及學術界的關注。
  15. Embryonic stem ( es ) cells are pluripotent cells derived from the inner cell mass ( icm ) of early blastrocyts, which possess the ability of unlimitted proliferation and maintain normal dipoid keptypes under differentiation - inhibited culture in vitro, they will differentiate into multiple lineage cell types or occur commentent and differentiation without differentiation - inhibited factors or hi presence of certain induced - factors.

    胚胎幹細胞( es細胞) ,是存在於早期胚胎內細胞團( icm )的一種多潛能細胞。在體外抑制分培養時, es細胞可限增殖並保持正常的二倍體核型,一旦撤除分抑制因素,或添加適當誘導劑, es細胞可發生譜系分
  16. In the qualitative, quantitative and directional way, successful factors, such as the superiority of marketing, the superiority of resource, the superiority of consumption, and the advantage of corporations supporting, etc, were described, and six important background factors, include of the increasing consumption, the competition from milk market, the challenge of joining into wto, the adjustment of industry structure, the winning against oneself, and accelerating development, were analyzed. new objects were put forward, that is, high quality, rationalizatio n of region distribution, having a core of brand, trade penetrating into various area, diversification of product exploitation, internationalization of preponderant product, and orientating function in market. development of tianjin milk industry should be based on materials and base, take resource integrating and market regulating as means, take trade infiltrating and product development as support, take specialization, industrialization, collectivization and internationalization as orientation, take the development of international milk corporation as mode, and take " creating name brand, entering the first - ten corporation of milk industry " as object

    本文在廣泛調查研究的基礎上,圍繞天津奶業發展,全面客觀地評價了天津奶業發展現狀,採用性、位、量和的方法,描述了天津奶業作為城郊型奶業在競爭中形成的市場優勢、資源優勢、消費優勢、龍頭企業依託優勢、外資企業進入優勢、奶類項目援助優勢等眾多成功因素,分析了天津奶業未來保持產業領先地位必須認真對待的消費需求增長、乳業市場競爭、迎接入世挑戰、產業結構調整、克服自身劣勢、促進跨越發展的六大背景因素,提出了天津奶業新一輪發展瞄準優質生產、區域布局合理、品牌整合核心、行業滲透多角、產品開發多樣、高點對接國際、市場避強導的目標位和以原料、基地為基礎、以資源整合和市場調整為手段、以行業滲透和產品開發為支撐、以專業、產業、集團、規模、國際的發展道路為方,以國際乳品企業的發展為模式,以「創造一流品牌、跨入乳業十強」為目標的天津奶業發展思路,以及天津奶業二十一世紀前十年和前二十年兩大階段奶牛養殖的五大奮斗目標和區域布局原則,最後有針對性地提出飼養模式選擇、全流程安全生產、產業龍頭培育、學生飲用奶推廣、政策扶持等促進天津奶業成長的對策措施。
  17. The degree of graphitization and diameter of cnts increased with elevated temperature, which showed that high temperature improved the catalysis of catalyst, and was attributed to uniform arrangement of atomic carbon, and hindered amorphous carbon

    隨著生長溫度的升高,催劑的活性提高,有利於碳的有序排列,生長的碳納米管直徑增大。氨氣對納米碳管的排列影響顯著,而氫氣、氮氣則影響。
  18. This cache is invalidated during when the resource is deleted or relocated, and when the resource state private shared, the resource owner, externalization, internalization, or role block is modified

    在刪除或重資源和修改資源狀態(私有/共享) 、資源所有者、外、內或角色塊時,這種緩存是效的。
  19. The ammonia - oxidizers were increased from 2. 13 106 / g mlss to 6. 28 108 / g mlss, while the nitrite - oxidizers were increased from 2. 13 103 / g mlss to 6. 28 106 / g mlss. after a month, most of the heteotrophic bacteria were washed out from the system. they nitrifying bacteria were prevalent in the enrichment system and were around 99 % in total bacteria

    選取富含硝細菌的活性污泥作為富集培養的對象,採用純機培養基對硝細菌進行富集培養,能在較短的時間內得到大量硝細菌富集培養物,硝細菌數約占總菌數的99以上。
  20. Ultrasonic was used to cut the nanotubes. at last, the nanotubes are no longer than the film thickness and they are end - opened and catalyst free

    通過超聲處理,切斷模板外的碳管,可得到與模板厚度一致,頂端開口劑的納米碳管陣列。
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