導出上同調 的英文怎麼說
中文拼音 [dǎochūshàngtóngdiào]
導出上同調
英文
induced cohomology homomorphism-
Various chemical strategies have been introduced to the system to affect the dynamics of reaction, and thus, to adjust the nucleation and growth process. by using appropriate complexing agents as controlling reagents and adjusting the reaction temperature, both morphologies ( nanorods and fractals ) and structural phases ( zinc blende or wurtzite structures ) of cdse nanocrystals can be easily controlled. a precipitate slow - release controlled method was designed in the synthesis of manganese selenides
在化學調控合成思想的指導下，運用已取得的調控合成的成功經驗，利用mnseo3沉澱緩釋放出mn2 +源和硒源，在調節反應溫度的基礎上，于同一反應體系成功地合成了mnse2和mnse的立方體和球形微米晶，實現了產物組成和維度的調控，並對它們的磁行為進行了研究。( 1 ) it sums up the three ideas of economics used to study urban planning, clearly expressing the theoretical point of view of this study, the co - existence of the theories of interlizing of externalities by a. c. pigou ' s and transaction cost and property right by ronald harry coase, which emphasizes that when market is developing on the basis of a perspicuity of property right and a economized of transaction cost, government intervention and revenue modulation should not be neglected
其具體內容如下： （ 1 ）系統研究和總結了城市規劃理論相關的經濟學發展上的三種思路。從而確定了本課題研究的理論支撐點：即庇古提出的外部效果內部化理論與科斯的交易費用與產權理論有可共存之處。在強調產權明晰與節省交易費用並以市場化發展為主導的同時，需要政府的干預和稅收調節。Therefore, the paper expanded eles, namely, turned the above assumption into the following : all the consumers in the same income level have the identical marginal budget share or the identical marginal propensity to consume when consuming certain goods, but consumers in different income level have not and the paper, by defining and introducing the nominal variable of income level - a variable of the marginal propensity to consume only resulting from the change of consumers " ( rural residents ) income level, with which the standard income level was compared, adopted to expand again the extended eles model, exploited the surveying household data in 2001 by liaoning statistics bureau, caculated ( 1 ) the marginal propensity to consume, real expenditure structure, real propensity to consume and marginal budget share of main consumer goods of rural residents in different income levels ; ( 2 ) the proportion of the basic demand quantity, the basic demand structure, the basic demand of main consumer goods in real expenditure of livelihood consumption ; ( 3 ) the income elasticity of demand, the expenditure elasticity of consumption, the price elasticity of demand and the cross price elasticity of demand of main consumer goods ; finally, came the following conclusions : 1
故本論文採用對擴展的線性支出系統進行再擴展，即將上述假定改為： 「對某類消費品的邊際預算份額或邊際消費傾向，對于同一收入等級的所有消費者均相同，但對于不同收入等級的消費者則有可能不同。 」並通過定義和在模型中引入收入等級虛變量，藉以代表與基準的收入等級相比，消費者（農民）僅僅由於其所處的收入等級變化所導致的邊際消費傾向的變化量。本論文採用對擴展的eles模型的再擴展，利用遼寧省統計局農調總隊的2001年農村住戶調查分戶資料（共1890戶） ，計算了（ 1 ）不同收入等級農民對各主要類型消費品的邊際消費傾向、實際支出結構、實際消費傾向、邊際預算份額； （ 2 ）不同收入等級農民對各主要類型消費品的基本需求量、基本需求結構、基本需求占實際生活消費支出比重； （ 3 ）不同收入等級農民對各主要類摘要型消費品的需求收入彈性、消費支出彈性、需求自價格彈性、需求的交叉價格彈性。Crystal zirconium phosphate - phosphonate has the stability and regulity of interlayer floor of inorganic a - zirconium phosphate, they still have the designability of the organic group in the interlayer and adjustment of the ratio of organic and inorganic phosphorus acid, they are a kind of potential smart material, we can process molecule design and optimize filtration according to the requirement of goal reaction, we can prepare special ion - exchange, catalyst, catalyst supporters nonlinear optics compound, solid state proton conductivity and the intercalation complex precusor by introducing different active organic group or active center into the choice and stable framework of inorganic a - zirconium phosphate
有機?無機晶態混合磷酸鋯具有無機磷酸鋯的層板穩定性和規整性，同時具有層間有機基團的可設計性和有機無機磷酸混合配比的可調節性的特點，是一類很有潛力的靈巧材料，並且可以根據目標反應的要求進行分子設計和優化篩選，在無機磷酸鋯優良穩定的骨架上引入不同的活性基團或活性中心，可以制備出性能獨特的離子篩、催化劑、催化劑載體、非線性光學物質、固態質子導體和制備插層復合物的前驅物。The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail
針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。To start with, the thesis mainly discusses the reading comprehension, from the definition of reading and reading comprehension to three different reading models, which shows that the most efficient reading model is interactive reading model, in which schemata knowledge is not only necessary but also important ; after the documentation, the thesis lays its foundation on schemata theory, which involves the different definitions of " schema ", the classification of schemata knowledge and its function in reading comprehension, from which the conclusion is drawn that during the reading, students can use different types of schemata knowledge according to the their language proficiency and different reading materials ; in the following part, the thesis briefly states the relationship between the reading comprehension teaching and the schemata theory, from which i gain inspiration and find out the applications of schemata theory in english reading comprehension teaching in senior high schools ; and at the same time, i offer a reading teaching model of a text, which shows how to use schemata theory in reading comprehension teaching ; in the last part of the thesis, an experiment is done between two classes using two different teaching methods, one is traditional, the other is new, that is, the teaching method that uses schemata theory, which is proved to be far better
論文首先探討了閱讀理解，從閱讀及閱讀理解的定義到三種不同閱讀模式等方面的探討，得出有效的閱讀模式是「相互作用模式」 ，該模式的運行離不開圖式知識的運用；然後，本文介紹了圖式理論，從圖式的不同界定到圖式的分類以及不同圖式知識在閱讀理解中的不同作用，得出：在閱讀中，讀者根據自己的語言水平和文章的難易程度的不同，調用不同的圖式。在介紹完了圖式理論之後，本文還簡述了圖式理論與閱讀教學的關系，探討了圖式理論對高中英語閱讀教學的幾點啟示及其啟示下的具體運用方法，並提供了一篇課文的閱讀教學模式，具體展示了在圖式理論的指導下，如何上一堂閱讀課；在文章的最後部分，筆者在自己所帶的班級中利用將近一年的時間作了一個實驗：在兩個班分別使用不同的教學模式，一個是傳統的教學模式，另一個是圖式理論指導下的新的教學模式。實驗結果證明，新教法的教學效果要好的多。So it becomes the most competitive new type of gyroscope. the interference fog is in the application process. the resonance fog needs shorter fiber or waveguide to realize the same sensitivity, comparing with the interference fog it can realize integration in silicon planar waveguide module and integration of ring cavity, input and output optical circuits and modulator in single chip of planar waveguide
與干涉式光纖陀螺相比，為達到同樣的靈敏度，諧振式光學陀螺需要的光纖或波導長度要短幾十倍，並可以進一步實現將環形腔、輸入輸出光路、調制器等集成在單片平面波導上，特別適合於研製微型光學陀螺。The resonation fog needs shorter fiber or waveguide to realize the same sensitivity, comparing with the interference fog. it can realize integration in silicon planar waveguide module and integration of ring cavity, input and output optical circuits and modulator in single chip of planar waveguide. it fits the rmog very much, which stands for the trend of miniaturization of gyroscope
干涉式光纖陀螺已經進入實用化階段，與干涉式光纖陀螺相比，達到同樣的靈敏度，諧振式光學陀螺需要的光纖或波導長度要短得多，可以實現將環形腔、輸入輸出光路、調制器等在單片平面波導上的集成，特別適合於微型光學陀螺（ rmog ） ，代表將來陀螺小型化的發展趨勢。( 2 ) study on the mechanics mechanism of the calamity caused by the cave of the highway : based on the investigation in detail along the line of the highway in shan - gan loess plateau, the distribution law, the classification and characteristic of hazard of highway cave are presented ; the calamity mechanism of highway cave opposite side slope and road bed is discussed, especially the mechanism of collapsing of the hidden cave in road bed. propose " the effect of hidden corrosion ", etc. 10 kinds send to mechanism of collapsing. based on the principle of limit balance, the formula of the critical treating thickness of hidden cave is put forward as follows : according to different stratum, different size and depth, the calculation of the critical thickness of the hidden cave of roadbed has been carried on
（ 2 ）公路洞穴的致災力學機理研究：在對陜甘黃土高原區公路沿線黃土洞穴詳細調查基礎上，研究了公路洞穴分佈規律、危害分類及致災特點；公路洞穴對邊坡及路基的致災機理，重點是路基暗穴致塌機理，並提出了「潛蝕效應」等十種致塌機制；利用極限平衡原理導出路基暗穴臨界處理厚度計算公式如下：針對不同地區不同地層，對不同尺寸和埋深的暗穴，進行了路基暗穴臨界處理厚度的計算。With fully investingation and research, this paper analyzed some prlblems based on the background of pipeline bureau of chinese petroleum gas and pipeline branch company of chinese petroleum gas stcok company. the main content include : expounded the stock company based on key business and remainnder enterprise with the real example ; sumed up the question betweenn listed company and the remainder enterprise ; aanalysed historical reason and realistic reason why the question exists with the method at last. the theory method and model frame adopted in this paper are not only suitable for the petrochina, but also have guide reference for the following reforms of large - scale, super - huge state - owned enterprises such as coal. water conservancy, electric powers, railways, civil aviations, etc
本文以中國石油天然氣管道局和中國石油天然氣股份公司管道分公司為背景，用實證分析的方法，在充分調研的基礎上闡明了基於核心業務的上市公司和存續企業的形成；歸納總結了上市公司和存續企業之間存在的問題；以系統分析方法為指導思想，運用邏輯推理的方法分析了問題存在的歷史原因和現實原因；面對具有中國特色的企業，既要保證改革的成功，提高企業的競爭能力，又要保證社會的穩定，在充分考慮國家、社會、投資主體、職工個人等多方利益的基礎上，提出用戰略聯盟的思想來指導二者之間的關聯交易；指出上市公司、存續企業和集團公司三方應從不同角度做出思想意識的轉變；最後用idefo方法對聯盟的運行進行結構功能設計。This thesis has made the contrast test of shrink and creep for plain concrete and concrete filled steel tubes on the basis of long term in - door test, obtains the principles of shrink - creep of concrete filled steel tube, simulates the test data, analyses and contrasts the coefficient of shrink and creep, thus offers reference for the calculation mode of creep, furthermore by introducing reasonable assuming at the same time, develops the calculation formula of equivalent elastic modulus at the same time, develops the calculation formula of equivalent elastic modulus, adopts common structure analyses procedure ansys to calculate the redistribution of section stress in the steel tube and concrete during operation
本文在長期的室內試驗的基礎上對素混凝土和鋼管混凝土做了收縮和徐變的對比試驗，得出鋼管混凝土的收縮徐變規律，對試驗數據進行了擬合，對鋼管混凝土的收縮和徐變系數進行了分析和比較，從而為鋼管混凝土的徐變計算模式提供參考，同時通過引入合理的假定，並結合由「齡期調整有效模量法」導出的混凝土徐變本構關系，推導出了鋼管核心混凝土考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用通用結構分析程序ansys對成橋后鋼管和混凝土應力重分佈進行了計算。Finally, the paper gives the optional policies and suggestions to improve monetary policy effectiveness : strengthen the monetary policy, lower further the loan rate, reserve rate and excess rate and reconstruct monetary policy transmission to launch the demand. at the same time, it is necessary to overcome the restrictions in china ' s monetary policy transmission
最後，文章針對上述分析，提出了旨在提高我國貨幣政策有效性的對策：繼續加大貨幣政策的力度，進一步下調貸款利率、準備金率和超額準備金率，重構啟動需求的貨幣政策傳導渠道，同時還要注意克服貨幣政策傳導過程中諸多環節存在的約束。We introduce a model of random birefringent single mode fibers, and the general nonlinear propagation equations of dual - lightwaves in random birefringent fibers are deduced. the characteristics of polarization mode dispersion in 2 + 10gb / swdm system is studied. it is found that pmd in wdm system can be effectively suppressed by the synchronous modulation technique
我們引入了隨機擾動雙折射單模光纖模型，導出了雙波長的光波在隨機雙折射光纖中的非線性脈沖傳輸方程；在此基礎上，研究了偏振模色散對2 10gb swdm系統中脈沖序列傳輸的影響，並採用同步幅度調制控制技術有效地降低了偏振模色散的影響。According to a real ac vf asynchronous dynomometer system, first step, the paper deducts the mathematic model of the system, and analyzes the system stability on the basis of the ? irst method ? of lyapunov stability, then draws the eigenvalues of the system under the situation of the variation of different parameters, and results in finding the changing regularity of the system stability caused by varitation of variant system parameter ; secondly, sets up a system simulation model in terms of a real power feedback ac vf asynchronous dynomometer system, and emulates different running states of the system, not only analyzes methods of adjusting parameters to improve the working performance in the field of weak flux of the system, but also proves the effectiveness of the methods via simulation ; at last, compares the simulation results of the model with the experiment results of the real system, and show the nearly correctness of simulation system, and also confirms the practical usage of the simulation system as an effectively assistant tool in the process of developing and design a real dynomometer system
首先根據實際系統工作原理推導出系統的數學模型，在系統數學模型的基礎上依據李雅普諾夫穩定性判別第一法進行了系統穩定性分析，繪制了系統不同參數變化時的系統特徵值變化圖，從而得到系統部分參數變化對系統穩定性的影響規律，為實際系統的參數設計提供了參考；然後又以系統數學模型為基礎，依據實際的電封閉交流變頻異步測功機系統建立系統模擬模型，模擬不同工況下系統運行情況，分析了改善弱磁區系統性能的某些系統參數調節方法，通過模擬證明了此類方法的有效性；最後將系統模型與實際系統的實驗結果進行了比較，驗證了模擬系統模型的基本正確性，也肯定了這一模擬系統在實際測功機系統設計中作為輔助工具的實用性。First of all, by establishing the observation model of complex harmonic signal and complex linear chirp signal respectively under the co - jamming of additive and multiply noise, the paper constructed cyclic moment detectors of different orders, deduced snr expression of the detector through theoretic analysis, discussed the relation of detector performance and noise statistical characteristic. the curve of detection performance is obtained through monte carlo simulation test, proving the related conclusion derived
首先，論文分別以加性和乘性噪聲聯合干擾下的復諧波信號和復線性調頻信號為觀測模型，構造了基於不同階次的循環矩檢測統計量，從理論上推導出了檢測器的信噪比表達式，分析了檢測器性能與噪聲統計特性的關系，通過monte - carlo模擬試驗得到了檢測性能的曲線，驗證了推導的有關結論。The ebs of different days gained by means of hanging, suspending and suspending following hanging were processed by all - trans retinoic acid ( ra ) for 4 days. during this period, we observed the differentiation process and compared the differentiation ratio of es cells processed by means of hanging, suspending for several days. based on this study, we induced the ebs by ra of different concentration in order to study the effect of ra on the differentiation of es cells into neuron - like cells
首先從胚體（ ebs ）本身探討es細胞內部調控誘導分化的機制，用懸浮培養、懸滴培養、懸浮轉懸滴培養的方法培養出不同時間的ebs ，再加以ra處理，觀察比較ebs對es細胞神經分化的影響；在此基礎上，用不同濃度的ra處理ebs ，分析誘導劑ra對es細胞神經分化的影響。And then, adopting the same model, cyclic moment estimation statistic of different orders are constructed respectively, large sample variance expressions of the estimator through theoretic analysis are derived, as well as the constraint relation of estimator performance and noise statistical characteristic. the curve of estimation performance is obtained through monte carlo simulation test, which proves the related conclusion derived
然後，論文同樣以加性和乘性噪聲聯合干擾下的復諧波信號和復線性調頻信號為觀測模型，分別構造了基於不同階次的循環矩估計量，從理論上推導出了估計量的大樣本方差表達式，分析了估計量性能與噪聲統計特性的約束關系，通過monte - carlo模擬試驗得到了估計性能的曲線，驗證了推導的有關結論。On the basis of which, this dissertation discusses in particular the extent of compensation for oil pollution tort, brings forward the principle with which to decide the extent of compensation. that is, it should take into account the idea of contemporary jurisprudence and the situation of china, and take reference to foreign cases, while basing on the traditional civil law and characters of oil pollution at the same time
在此基礎上，本文詳細討論了油污損害賠償范圍的問題，認為考慮油污侵權賠償范圍的指導思想是：以民法侵權制度的規定為基礎，根據油污侵權的特點做出一定調整，即能反映當代法律的思想又能照顧國情，同時，亦應虛心借鑒外國先進成熟的立法例。Aim at the limit of map - tuned variance method, we use directional noise to handle the motion along different road. then, we evolve the general formula to judge whether the target is on road or not, and present " extended map - tuned variance method "
針對地圖調整方差法的局限性，引入方向性過程噪聲來表徵目標在不同的道路上運動，推導出判斷目標在道路上的一般公式，提出「擴展地圖調整方差法」 。分享友人