環的自同態 的英文怎麼說

中文拼音 [huándezìtóngtài]
環的自同態 英文
endomorphism of a ring
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 態 : 名詞1. （形狀; 狀態） form; condition; appearance 2. [物理學] （物質結構的狀態或階段） state 3. [語言學] （一種語法范疇） voice
  1. The understanding of biogeochemical cycle of hydrogen, oxygen, carbon, nitrogen, and sulfur elements in nature ecosystem have increased substantially in the past two decades owing to the improvement of gas isotope ratio mass spectrometer and the wide application of isotopic studies with these elements

    摘要近20年由於氣相同位素比值質譜儀的改良和氫、氧、碳、氮和硫等穩定同位素的廣泛研究，穩定同位素的研究技術已實質增加我們對于這些元素在自然生態系中生地化循環的了解。
  2. This drilling adopts crank connecting link and walking beam percussion mechanism, which make the drilling possess two percussive functions, normal drilling takes connecting link impact as main mode, when encountering special situation and the connecting link impact can not drill, it can transform into hoisting impact, the stroke length can be modulated, it realizes automatic percussive drilling due to continuous operating of connecting link percussive mechanism, these can enhance drilling efficiency and relieve labor intensity ; it adopts pumping reverse circulation to drain slag, which not only resolves the drilling difficulty in special stratum such as pebble and gravel stratum and hard stratum, but also resolves the problem that the percussive drill ' s efficiency is low ; it adopts spur gear differential mechanism as double cylinders lazy tongs of main hoist, which not only ensures the balance state of drilling tool, but also reduces the mechanical design, and reduces the cost ; the bottom plate traveling motion of this drilling machine adopts walking type ; the drilling tower adopts hydraulic pressure uprising, and reduces the assistant operating time

    該鉆機採用曲柄連桿、游梁式沖擊機構，使鉆機具有兩種沖擊功能;正常鉆進以連桿沖擊為主，遇到特殊情況，用連桿沖擊不能鉆進時，可轉為卷揚沖擊，沖程可調，因連桿沖擊機構連續工作，所以實現了自動沖擊鉆進，可提高鉆進效率，減輕勞動強度;採用泵吸反循環的方式排渣，既能有效解決卵礫石地層、堅硬地層等特殊地層鉆進的困難，又很好地解決了沖擊鉆機效率低下的問題;採用直齒圓柱齒輪差速機構作為主卷揚的雙筒同步機構，既保證了鉆具處于平衡狀態，又大大簡化了該機構設計，降低了成本;該鉆機底盤行走移位採用步履式;鉆塔採用液壓起立，減少了輔助作業時間。
  3. They study the duality and selfduality of rings such as extensions of a ring with a morita duality ( or selfduality ), noether rings, series rings, endomorphism rings and so on

    他們研究環擴張， noether環，序列環，自同態環等的對偶性及自對偶。上個世紀九十年代， c menini和a
  4. From the youths " attitudes towards national education surroundings, towards the meanings of school education, and towards the views of fluxion of engagement, and towards the dealings with the internet information, towards the national social problems and views on canonization, it concludes the absolutely different results of educational cognitions between the youths in developed and developing countries

    從青少年對自己國家教育環境的態度，對學校教育意義的不同認識，對雇傭流動的不同觀點，以及對網路信息的處理方式，對本國社會的問題與褒揚點的不同意識，得出了發達國家與發展中國家的青少年截然不同的教育意識與需求的結果。
  5. The wavelet multi - analysis is adopted to further understand the microstructure of solids holdup fluctuation, the vivid fingermark images show that it is a fractal and dissipative structure. the low and frequency signals reflect the dilute phase fluctuation behavior and dense phase ( cluster ) fluctuation behavior, respectively. to deep understand the multi - scales characteristic of gas - solids circulating fluidization, the wp decompose methods for obtaining the eigenvalue of gas - solid fluidized bed has been developed. the results show that eigenvalues of different scales are effective for identification of non - uniform and dynamic structure of gas - solid fluidized bed

    小波多分辨分析法得到指紋圖形象地揭示了顆粒濃度脈動的自相似、分叉等具有混沌特徵的微觀結構；小波分解后信號中的低頻和高頻成分分別代表了稀相和密相的脈動行為，小波包分解提取能量特徵值的方法能夠揭示氣固的多尺度特性，不同尺度上的能量特徵值四川大學碩十論文反映了氣固循環流化系統中存在的非均勻動態時空結構。
  6. Firstly, some basic properties of the limit shadowing are given ; secondly, we give the characterization of both lin - ear automorphisms and linear flows on r ~ ( n ) with the limit shadowing property ; thirdly, as applications we prove that the hyperbolic endomorphisms on t ~ ( n ) have the limit shadowing properties, smale " horseshoes " have the same prop - erties on their invariant sets

    首先，給出了極限跟蹤性的一些基本性質；其次，得到了n維歐氏空間上線性自同構及線性流具有極限跟蹤性的特徵；最後，作為應用證明了雙曲環面自同態以及smale 「馬蹄」在其不變集上具有極限跟蹤性。
  7. There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor

    本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。
  8. Conditions of normal mode realization are deduced and optimized model with the multivariate mode indicator function as the target function is built. through solving the maximal eigenvalue problem, the original shaker force vector of appropriation is reached. then the realization approach of the optimal shaker force vector based on single shape principle is proposed and at the same time the automatization of normal mode appropriation is realized

    對于模態物理分離技術的多點正弦激振純模態試驗技術，尋求其最佳激振力矢量是最為關鍵的環節，本文先推導出純模態實現的條件，建立以多變量模態指示函數為目標函數的優化模型，通過求解最大特徵值問題，得出適調純模態的初始激振力矢量，再提出以單純形原理為基礎的最佳激振力矢量的實現方法，同時也實現了純模態適調過程的自動化。
  9. Based on the fast ethernet technology standards, the hardware platform integrates the field analysis facilities, the water quality detecting facilities, boat carried gps and hydrometeorological facilities to a fast boat carried entironment monitoring system. the system realizes the auto collection, pretreatment and distribution of the sample of the marine water, the field collecting, distill, analysis and storage of the monitoring data and sending of the data to land supporting system to finish the producing and rele ase of the information product

    該硬體平臺採用符合internet intranet技術標準的交換式快速以太網技術和星型連接拓撲結構建設船載局域網路，支持局域網上10mbps的數據傳輸速度，將現場分析儀器、水質檢測設備、船載gps以及水文氣象等設備集成為一個船載海洋生態環境快速監測系統，實現樣品的自動採集、預處理與分配，以及監測數據的現場收集、提取、分析處理與存儲，同時將監測數據實時傳回地面支持系統進行信息產品製作和發布。
  10. We selected two experimental sites - forest land and bare land to carry out the research. the research including : co2 concentration, temperature, air humidity and rainfall. we probed into the principle of carbon cycle in different elevation and the effect of vegetation to carbon cycle

    故，本次試驗以典型的亞熱帶巖溶分佈區中的金佛山自然保護區為例，選取喬木林和裸地兩種巖溶生態系統類型作為研究對象，對co _ 2濃度、溫度、濕度、降雨量等進行觀測，探索在不同海拔高度上，其碳循環的機制及有無植被覆蓋對碳循環運行的影響。
  11. In this thesis, based on a digital signal processor tms320f240, a controller for pmsm is researched an designed. we analyzes the mathematics model of pmsm, researchs vector control of pmsm and space vector pwm, discusses the controller of position, speed and current, designs the mrfas position controller, pid speed controller and pid current controller, sets up pmsm ac servo control system, designs dsp controller, and develop the corresponding sofeware. at last, the designed controller is simulated under matlab / simulink, and the results are gived

    分析了水磁同步電機的數學模型，研究了永磁同步電機的矢量控制方法和空間矢量脈寬調制原理，討論了位置環、速度環和電流環的控制方法，設計了模型參考模糊自適應位置控制器、 pi速度器和pi電流控制器，組建了永磁同步電機交流伺服控制系統，設計dsp控制器，並開發了相應的軟體。最後在matlab simulink環境下對系統進行了動態模擬，並給出了模擬結果。
  12. The aspects which i specified in the draft versions of my thesis, for example, building energy performance, energy conservation models, relationship between building energy efficiency and energy conservation, description for keeping natural environmental conditions within the building, address the following problem of 1992 the governments signed the united nations framework convention on climate change ( fccc ) at the earth summit in rio de janeiro, buildings impact on natural resources and environment, to use “ ecological footprint ” concept and measuring for assessing the impact on resources and environment from use of energy in buildings, method for obtain local climate weather profiles, features of nz weather and how the weather profile associating with indoor conditions, occupants ' interface with indoor thermal conditions, history of nz building energy conservation, operation scheduling technique, analysis of nature lights and energy saving, hvac modeling, doe2 simulation methodology, layout of the figures, tables, and contents, conclusions and so on are taken as her group ' s own contents and going on research topics

    在我的畢業論文草稿里寫下的內容，比如：建築耗能運行，節能模型，建築內部的能效比和節能的關系，表述保持建築物內部的自然環境，提出1992在里約熱內盧地球高峰會議后紐西蘭政府簽署了聯合國fccc協議后的追蹤問題，建築耗能對環境和自然資源的沖擊，使用"生態腳印"的概念來評價建築耗能對自然資源和環境的沖擊，取得天氣剖面圖的方法，紐西蘭的氣候特點及天氣剖面同室內狀況的聯系，建築物內的人員對室內熱力環境的干預，紐西蘭的建築節能史，建築用能模擬運行時刻表編製法，對紐西蘭自然採光和節能的分析，建立暖通空調用能模擬和doe2模擬方法，論文內容，表格和布置，及得出的結論等等，都被這一群人當作他們自己的在使用，以及作為繼續進行的研究課題在使用。
  13. A new kind of robust h control tactic based on ip controller for dynamical and rapid high - precision - feed in a single axis is proposed in this paper, and the problem of h2 / h is also introduced, in which a constraint condition on y is deduced. the background of the paper is " theory of dynamic precision synchronization traverse and research of realization methods for linear servo dual position loops system ( no. 50075057 ) ", which is supported by national natural science foundation of china

    本文以國家自然科學基金資助項目《直線伺服雙位置環動態精密同步進給理論和實現方法研究（ n _ o . 50075057 ） 》為背景，基於h _控制理論，提出了直線伺服單位置環的高精度快進給的魯棒h _控制方案，並進一步研究了h2 h混合控制問題，給出了一個約束的條件。
  14. Results show that there exist obvious differences and interesting connections between the fluctuation characteristics of natural and mechanical wind in built environment, which may be main reason why people have different thermal sensations to them

    研究結果表明，建築環境中的自然風和機械風的氣流動態特徵尤其在風譜特徵上有著明顯的區別和有趣的聯系，這很可能是導致人們對自然風和機械風有不同感受的主要原因。
  15. Jinzhou promotes greatly agricultural ecology construction by ecology views and system methods such as the theory of the living things symbiosis, the cycle and regeneration of material and energy, the cooperation of living and environment and soon in according to the feature of natural resource and environment in order to realize the organic combination of energy ecology and society

    金州區按照自然資源和環境特點，運用生物共生原理、物質能量循環再生原理和生物環境協同原理等生態學觀點和系統方法，全面推動金州農業的生態建設，以實現經濟? ?生態? ?社會效益的有機結合。第四章對大連市城市生態系統協調發展進行定性與定量的綜合分析。
  16. My net assistant can optimize settiongs automatically, if you are an advanced user, you can optimize settings manually ; backup and restore with the optimization, the ones that can make users relaxed will resume the state before optimized, in order to ensure the system security. 2. maxmtu automatically discovery : specifies whether microsoft tcp ip will attempt to discover the largest packet size the mtu over the path to a remote computer

    1 .領先的網路優化項目，全面提升網路性能：軟體開發組通過對windows操作系統環境9x me nt 2000 xp 2003下的500臺電腦的實際評測分析，自主分析評測出絕對領先的多達29項的網路優化項目，通過智能化的自動優化向導，將網路系統參數設置得更合理，讓用戶的網路性能發揮到最高點為方便高級用戶，軟體內置了詳細的自定義手工優化系統，可以更精確的設置各個項目最安全最先進的系統同步備份與還原功能，可以讓用戶輕松的將系統恢復到優化以前的狀態，以保障系統的優化安全。
  17. The variations of the surface state and environment conditions could change the procedure of exfoliation, therefore, the potentiometry and electric resistance methods in this paper are used to measure the exfoliation rate of aluminum alloys in a constant temperature, the experimental results show that relations of natural corrosion potential vs time have a resemblance to those of corrosion rate vs time, both relations are all at the different change rates in the front and back of 120 minutes

    超硬鋁合金表面狀態、環境條件的變化，均可能改變剝蝕的發展過程，為此，本文提出在恆溫條件下，用電位法、電阻法定量研究鋁合金的剝蝕性能。實驗結果顯示了lc4cs鋁合金的自腐蝕電位與時間的關系，和腐蝕速率與時間的關系有著十分相似的規律，兩者均在120分鐘前後有不同的變化。
  18. This paper briefly reviews the history and progress of trace metal marine ecotoxicology over the past few decades. three main areas of metal ecotoxicology are transport in the environment, accumulation and toxicity, as well as the risk assessment. we have seen tremendous progresses in these areas as a result of interdisciplinary efforts by biologists, chemists, engineers, governmental regulators and managers. i then discuss the future perspectives of metal ecotoxicology. it is expected that this field will receive increasing attention in china. certainly i hope that xiamen can become a center for metal ecotoxicology and biogeochemistry research

    簡要回顧了痕量金屬的海洋生態毒理學研究的歷史及過去幾十年中所獲得的進展.金屬生態毒理學研究主要包括以下3個方向:環境中的轉移，毒性積累及危險評估.在來自於多種學科的專家，包括生物學家，化學學家，工程師和政府監督管理人員等的共同努力下，這3個方向的研究都獲得了長足的發展.同時對金屬生態毒理學的未來進行了展望.可以預見的是，這門學科將在中國受到越來越多的關注.我更希望看到廈門能夠成為未來金屬海洋毒理學發展的中心
  19. Present measures and methods of the county ' s ecological coustruction are intreduced

    結果表明，自然因素與人為因素的共同作用導致了該區生態環境的退化。
  20. Abstract : in surface oil and gas geochemical exploration, the physiographic environments of the geochemical surveying points, especially the variation of the soil media, will exert obviously different interferences on different technical indices. a comparison of anti - interference capacities between such techniques as adsorbed filaments, acid - dissociated hydrocarbon and phase state hydrocarbon reveals that the adsorbed filament index has evident anti - interference capacity

    文摘:地表油氣化探中，測點所處的自然地理環境，特別是樣品介質條件的變化，對不同方法指標所產生的干擾作用有明顯的差異，通過對吸附絲、酸解烴和相態烴方法的抗干擾性比較，發現吸附絲指標具有明顯的抗干擾能力。
分享友人
分享到 Line

分享到臉書