逆極性 的英文怎麼說

中文拼音 [nìjíxìng]
逆極性 英文
antipolarity
  • 逆 : Ⅰ形容詞1 （方向相反） contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 （抵觸; 不順從） go aga...
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  1. So these karst series problems are lowness ability of making soils, distributing odds of surface water and groundwater, leakiness of fountain, alkalescence of circumstance, lowness of bio - diversity, rapidness converse succession of vegetation and fragility of soil character and entironment. and karst region produces many problems, e. g. rock desert, soil erosion and degeneration because of artificial influence and destruction

    巖溶空間介質具有地上地下雙層結構，可溶巖造壤能力低，巖溶水空間分佈不均、地表地下水關系密切、水源易漏失，偏堿性環境、生物資源集聚程度低，植被逆向演替快、順向演替難，巖溶地質與生態環境十分脆弱，受到人為因素的影響和破壞，極易產生石漠化、土壤侵蝕與退化等一系列問題。
  2. This dissertation can be divided into three parts as following : focusing on institutional risk control, this dissertation demonstrated the effect of institutional risk on dis " objects by analyzing the relationship between deposit insurance and financial development, financial stability and market discipline, in light of foreign or native primary theory and empirical results of dis. in virtue of statistical method and with the theory of game, this dissertation explored the cause the institutional risk such as moral risk and adverse selection, on the basis of which discussed the approach of controlling institutional risk and proper deposit insurance pattern. because deposit insurance assessment is the core of institutional risk control, this dissertation introduced and discussed deeply the passive casualty - insurance model, the option - pricing model, the game - theory - based pricing model, and reasonable pricing interval, and put forward the hierarchical pricing strategy of dis on the balance of information confiscatory and risk - based - assessment necessity

    本文以存款保險制度風險控制為中心，在借鑒國內外關于存款保險制度的基本理論和實證的基礎上，通過分析存款保險與金融發展、金融穩定和市場懲戒等方面的關系，論證了存款保險制度風險對存款保險制度目標的影響；並藉助統計學的方法，運用信息博弈論的觀點，從主要制度參與者? ?投保機構和存款保險機構? ?的效用函數出發，對存款保險所引發的道德風險和逆向選擇等制度風險的成因進行深入的剖析，探討有效控制制度風險的途徑和制度參數的安排模式；由於存款保險定價是制度風險管理的核心問題，本文還專門對意外存款保險消極模型、存款保險的期權定價模型、基於信息經濟學的存款保險定價模型以及合理定價區間等定價模式進行深入分析和詳細評述，闡述各種定價思路的局限性和可能運用的空間，通過權衡信息的充分性和風險定價的必要性，提出存款保險制度的層次性定價策略。
  3. We improved the theorem of inverse limits of hereditarily - normal spaces, and gave a simple proof of this result

    摘要討論了-正規空間的逆極限性質，改進了文[ 7 ]中關于遺傳-正規性逆極限保持定理，並給出一個簡單證明。
  4. Are there similar characterizations for the countable paracompact ( mesocompact, metacompact ) space and hereditarily mesocompact space ? in this paper, on the basis of the aboves, we obtain some results about them. and the product properties of mesocompact spaces and hereditarily mesocompact spaces have been paid attention. but there is no good result about them. in this paper we obtain a result about the limit of the inverse system of a normal mesocompact space and a hereditarily normal and hereditarily mesocompact space

    那末，可數仿緊（中緊、亞緊）空間及遺傳中緊空間是否具有類似junnila的刻畫呢?本文圍繞這個問題在上述結果的基礎上證明了一些結果。另外，中緊空間和遺傳中緊空間的可乘性問題一直受到人們的關注，但還沒有好的結果，本文證明了一個關于正規中緊空間及遺傳正規且遺傳中緊空間的逆極限的結果。
  5. Sophora alopecuroides mainly distributes in the desert regions of northwest china as a highly adversity - resistant perennial officinal plant

    摘要苦豆子主要分佈在我國西北沙漠地區，是一種抗逆性極強的豆科多年生藥用植物。
  6. The chemical compositions of sei films formed on the interfaces of a3000 samples in different electrolytes during the first charging process are mainly li2co3 and lioco2r, but their textures are different. the sei films formed in ec - based electrolytes are thin and compact, which can prevent the solvated lithium ions from cointercalating between two graphene layers of the graphite crystallites effectively, therefore samples a3000 have small irreversible capacities and good compatibilities with this kinds of electrolytes. however, the sei films formed in pc - based electrolytes are thick but defective, which could not effectively prevent solvated lithium ions from intercalation, therefore sample a3000 shows large irreversible capacities in pc - based electrolytes and bad compatibilities with this kind of electrolytes

    A _ （ 3000 ）試樣在六種不同的電解液中，首次充電過程中所形成的sei膜，其化學組分均為碳酸鋰和烷基碳酸鋰，但在ec基電解液中形成的sei膜薄而緻密，可以有效地阻止溶劑化鋰離子插入石墨層間，不可逆容量少，表現出與a _ （ 3000 ）試樣有良好的相容性；在pc基電解液中形成的sei膜厚，且有缺陷，不能有效地阻止溶劑化鋰離子嵌入試樣中石墨微晶的層間，不可逆容量大，與a _ （ 3000 ）試樣的相容性極差。
  7. Abstract : direct limit and inverse limit are the methods producing new algebra in universal algebra. in order to further study the production of the new algebra, authors define the family of duplicate set and duplicate limit, discuss the algebraic duplicate limit, the characterestics of the once more duplicate direct set and more duplicate direct limit, the family of once more duplicate direct direct algebra and the limit of once more duplicate algebraic set family

    文摘:直極限和逆極限是泛代數中生成新代數的方法，為了進一步研究新代數的生成，筆者給出了重集族和重極限的定義，討論了代數的重極限；其次研究了二重直集族和二重直極限及相應性質，討論了二重直代數族和二重直代數族的極限
  8. The low solubility of calcium zincate produced from the chemical reaction of zinc oxide and calcium hydroxide in alkaline solution can improve the cycling life the zinc electrode, and the discharge capacity will tend to be stable. furthermore, the effects of la2o3 additives on the electrochemical performances of zinc electrodes were investigated. the results shows that the addition of la2o3, in zinc electrode can improve the area of reduction peak and the hydrogen evolution potential which means the cathodic hydrogen evolution reaction can be hindered

    氧化鋅與氫氧化鈣在堿性溶液中化學反應生成的難溶於堿的鋅酸鈣可以使鋅電極的循環壽命得到提高，放電容量也趨于平穩，此外還考察了氧化鑭對鋅酸鈣電極電化學性能的影響，結果表明：添加適量氧化鑭能明顯改善鋅電極的電化學性能，使鋅電極的還原峰電位正移，電極反應可逆性得到改善，同時也可抑制鋅電極析氫反應的發生，提高了鋅電極的陽極電流，對陽極反應有一定的活化作用；同時還可以改善鋅電極的放電特性，增加電極的放電容量。
  9. D. salina can grow in extreme environment such as in a variety of salt concentrations ranging from 0. 05m to 5m, and the optimum salt concentration for growth is 2m to 3m

    該藻的突出優點在於抗逆性極佳，可在0 . 05m - 5m的鹽水中生長，最佳生長繁殖鹽度為2 - 3m ，是目前已知最耐鹽的真核生物。
  10. Magnetic field polarity reversals are magnetic poleshifts

    磁場極性逆轉就是磁極轉換。
  11. The variable polarity power supply circuit uses two stages full - bridge inverter, the former inverter is regarded as a constant - current source with fast dynamic response, and supplys energy for the second one, and the latter one is to produce variable polarity current excellently, and low - frequency pulse current by variable polarity power supply is used to reduce input energy and control the shape of weld bead while welding. a series of high - frequency pulse current is superposed on direct - current - electrode - negative ( dcen ) current through the high - frequency pulse power supply, which is used to compress the arc and improve process of crystallization

    其中變極性電源採用二次全橋逆變結構，一次逆變提供快速的響應速率並給二次逆變提供能量，二次逆變提供良好的變極性性能，使輸出能量最優化，並用其低頻電流特性減小電弧線能量，控制焊縫成形;高頻脈沖電源提供的高頻電流疊加在反極性電流dcen上，利用電流的高頻特性壓縮電弧，改善焊縫金屬結晶過程。
  12. And about a given property p which satisfies some conditions, we give a condition for the open sets in the tychnoff product of two spaces which have a open refinement having the property p. the last chapter obtains a result about the limit of the inverse system of a normal mesocompact space and a hereditar ily normal and hereditarily mesocompact space

    而且給出了，對滿足一定條件的某種性質p ，兩個空間的乘積中的每個開集族有p性質的開加細的一個充分條件。第四章詳細證明了關于正規中緊空間及遺傳正規且遺傳中緊空間的逆極限的一個結果。
  13. The inverse limits proposition of - orthocompatu spaces

    緊的逆極限性質
  14. It has the important meaning for working for more and better economic results and realizing enterprise value maximization that how to improve contract, establish the system perfectly, normalize the behavior between owner and manager, prevent manager from adverse selection and moral risk, raise manager ' s ability and activity, reduce the proxy cost and so on

    因此，如何完善契約、建立健全相關機制、規范所有者和經營者的行為、防止經營者的「逆向選擇」和所有者與經營者的「道德風險」 、提高經營者能力和激發經營者的經營積極性、降低代理成本等對提高企業經濟效益、實現企業價值最大化具有重要意義。
  15. The twelve kinds of modes and equivalent circuits of this inverter with high frequency link within one high frequency switching period are carefully analyzed ; by using the state - space averaging approach, the inverter ’ s averaging model is presented, and the design criterion of key circuit parameters and the output characteristic curve are given ; the analyses of the system stabilization and the mathematic analyzes of the principle of high - frequency - link of this inverter have also be done. prototypes for 1kva 270v 10 % dc / 115v400hzac uni - polarity phase shifting controlled bi - directional voltage mode inverter with high frequency link is designed

    以全橋橋式拓撲為例，論述了雙向電壓源型高頻環節逆變器單極性移相控制的原理、逆變器在一個高頻開關周期內的十二個工作模式及其等效電路;採用狀態空間平均法建立了逆變器平均模型，獲得了這類逆變器的關鍵電路參數的設計準則和外特性曲線;分析了系統穩定性，並對逆變器高頻環節原理進行了數學分析。
  16. The photoinduced changes in polarity and molecular structure have led to widespread application of azobenzene derivatives as reversible molecular switch devices

    光致極性和分子結構的變化使偶氮衍生物作為可逆的分子開關器件得以普遍應用。
  17. This paper simulates and analyses the torque pulsation because of the modulation frequency and speed variation under ambipolar pulse width modulation ; the influence of snubber circuit, dead time effects, and modulation frequency to igbt pwm inverterbridge is taken into account, too

    本文對雙極性調制的無刷直流電動機模擬，分析了轉速和調制頻率對轉矩影響；並綜合考慮緩沖電路、控制死區及載波頻率對pwm逆變電路中igbt開關損耗的影響。
  18. Besides, the small business transparency is low and it is hard to estimate the credit rating of small business. bank makes it difficult for small business to get a loan, since information dissymmetry results in information inferior position for bank. therefore, bank is negative to small business loan so as to avoid risks

    因此，從理論上講:由於小企業財務管理不規范、信息不透明、信用級別難以確定等自身特點，銀行在向其提供貸款的過程中處于信息劣勢，為了避免因信息不對稱產生的逆向選擇和道德風險，銀行在對小企業放貸時缺乏積極性，以至產生貸款難的問題。
  19. The mixed control chip sg3525a combined with hardware pi controller generates the high - frequency pwm pulse for the first inverter. the digital control block tms320lf2407a mainly provides current preset for constant - current source through the outer filter, pwm pulse for the second inverter and drive signal for the high - frequency pulse power supply

    其中變極性電源的一次逆變pwm信號由pwm發生晶元sg3525a ，配以外部硬體電路pi調節器產生;一次逆變閉環控制迴路的電流給定（配以外部濾波） 、二次逆變pwm驅動以及高頻脈沖電源的控制則由tms320lf2407a數字控制器實現。
  20. Its test results indicate : voltage mode inverters with high frequency link have the advantages such as high frequency electrical isolation, simple topology, two - stage power conversions, high power density, bidirectional power flow, good line current waveform, low audio noise, high converting efficiency, and high input power factor etc. this kind of converter lay the key technical foundation on new type high power density, high efficiency and low cost asi

    設計的1kva270v 10 % dc / 115v400hzac單極性移相控制雙向電壓源高頻環節逆變器原理試驗表明，這類逆變器具有高頻電氣隔離、電路拓撲簡潔、兩級功率變換（ lfac / hfac / lfac ） 、功率密度高、雙向功率流、音頻噪音低、變換效率高、網側功率因數高等優點，為新一代高功率密度、高變換效率、低成本航空靜止變流器奠定了關鍵技術基礎。
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