標量介子理論 的英文怎麼說

中文拼音 [biāoliángjièzilǐlún]
標量介子理論 英文
scalar meson theory
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 理 : Ⅰ名詞1 （物質組織的條紋） texture; grain （in wood skin etc ） 2 （道理;事理） reason; logic; tru...
  • 論 : 論名詞（記錄孔子及其門徒的言行的「論語」） the analects of confucius
  • 理論 : theory
  1. In this paper, which is about p + a p " + a " + reaction process, exciting the n * ( 1440 ) in the projectile of protron mediated by an isoscalar ( cr ) exchange, we continued to work in the framework of effective theory

    本文在以標量介子作為交換介子的有效理論框架下，在完全相對論的基礎上，研究了p + a p + a +反應模型中，在入射粒子p上產生共振激發態n ~ * （ 1440 ）的反應過程。
  2. 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。
  3. In the paper, chapter 1 gives a comprehensive introduction of digital image compressing including its recent status, technical standards, classification in the world. chapter 2 introduces briefly the thought and ii procedure of vector quantization, describes lgb algorithm and vector quantization based on sofm neural network. chapter 3 discusses predictable coding in lossy and lossless aspects, analyzes adaptive predictable coding based on bp neural network, introduces the evaluation of algorithm on neural network in image compression. chapter 4 discusses the applications of mathematical transformation in image compression and does experiments related, analyzes the strategies of image coding in transformed domain. in chapter 5 images are decomposed and represented by wavelet transform, then discusses the characteristics and effects of wavelet functions in image compression, analyzes the wavelet coefficients after images are decomposed ; based on the theories and analyses in the prior chapters, the paper presents an image compression scheme and gives results. the test results shows that the image compression scheme is practical and helpful to map into the local content of images to get rid off redundancy, so that, it can require satisfactory results of image compression

    方案首先利用小波多分辨分析性質，對圖像進行小波分解，對分解后各子圖的小波系數進行了統計分析，針對各子圖的小波系數特點，對不同的子圖分別採用不同的壓縮方法，低頻子圖採用基於神經網路的自適應預測編碼，高頻子圖採用基於神經網路的矢量量化編碼，從而實現對圖像數據的壓縮處理。本論文第一章介紹了數字圖像壓縮處理的國內外當前的概況以及其技術標準和分類。在第二章，介紹了數字圖像的矢量量化技術的數學思想和過程，對lbg演算法和基於sofm神經網路的矢量量化進行了闡述、分析。
  4. " why does china, the largest coal producing country in the world, still need to import coal ? ", a paradoxical question is raised at the beginning of this paper. then based on a brief introduction of the situation of china ' s coal industry, this paper analysis the features of coal products combined with theoretical knowledge of enterprise competitive strategies, and attempts to introduce some competitive strategies to chinese coal enterprises, generally involving overall cost leadership ( overall cost control and quality guarantee system ), differentiation and focus

    本篇論文通過「中國作為第一產煤大國為什麼還要進口煤炭」作為引子，在對我國煤炭工業基本情況及煤炭在我國能源中的地位介紹的基礎上，試圖通過分析煤炭行業的產品特點，結合所學過的有關企業競爭戰略的理論知識，針對開放了的競爭市場的挑戰，提出了煤炭企業的競爭戰略，即總成本領先戰略（總成本控制、質量保證體系） 、產品差異化戰略和目標聚焦戰略，使企業目標明確。
  5. Material recommend about the development and theory of dtc the composing of dtc - system is presented in this paper. some important taches such as flux - linkages adjuster, frequency adjuster, the mathematics model of asynchronous motor in - coordinates and the choice of voltage - vectors are discussed detailedly

    文章對直接轉矩控制方案的發展與理論做了具體介紹，根據理論確立了直接轉矩控制系統的結構組成，並對其中如磁鏈調節、頻率調節、在定子坐標系下的異步電動機數學模型、電壓向量選擇等重要環節作了詳細討論。
  6. In the theory sustentation, the thesis offers the integration of the subsystems to the integration of the big whole system from three parts : the integration of hardware system, the network technology and the network security, the integration of software system. in the integration of hardware system, the measure control unit is concretely introduced and the intelligent instruments is educed, and then diversified pivotal technology of the instruments are studied deeply through the depiction of the conception and structural character of the intelligent instruments. in the network technology and the network security, the definition and character of the fieldbus is educed firstly, after the actuality and the developing foreground and the faced problems during the developing course are discussed, the network communication protocols cored by the open system interconnect reference model and the industry ethemet which is most widely applied in practice are dissertated emphatically, the problem of the network security is discussed lastly

    在理論支持方面，論文從硬體系統集成、網路技術和網路安全、軟體系統集成三個部分對整個大系統的集成提供子系統的集成：在硬體系統集成部分，具體介紹了測量控制單元mcu ，然後引出智能儀器，通過對智能儀器概念和結構特點的敘述，深入研究了智能儀器的各項關鍵技術；在網路技術和網路安全部分，首先引入現場總線的定義和特點，在探討了現場總線的現狀、發展前景及發展所遇到的問題后，重點論述了以osi參考模型為核心的網路通信協議和實際中應用最廣泛的工業以太網，最後討論了網路安全問題；在軟體系統集成部分，首先從軟體集成的標準問題出發，在探討了軟體集成的框架設計思想和開發平臺及開發工具的選擇之後，重點研究了組態軟體在安全監測系統中的應用。
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