標量介子 的英文怎麼說

中文拼音 [biāoliángjièzi]
標量介子 英文
scalar meson
  • 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...
  1. Adopting the assummation that the quark interaction is the sum of the usual one - gluon direct exchange and the mixture of linear scalar and vector potentials, we structure the relativistic corrections of order v2 / c2to the cornell potential, including the annihilation potential for the quark and antiquark of the same favors which plays the same role with the one - gluon direct exchange at short distances. the effects of the relativistic corrections on the hyperfine splittings of quarkonium states are discussed, and a good fit to the available experimental data is obtained on heavy quarkonium mass spectra

    采納庫侖勢源於單膠子直接交換，而線性禁閉源於標量和矢量的混合，同時考慮在短程區域與單膠子直接交換起同樣作用的同味正反夸克的湮滅，構造了靜態夸克-反夸克勢到v ~ 2 c ~ 2級次的完全相對論修正，並擬合計算了重介子偶素的能譜，討論了相對論修正對重介子偶素能級分裂的作用。
  2. Guidelines for reducing roe deer numbers to tolerable levels in woodland are summarized in british forestry commission leaflet.

    把林地上獐鹿數量減少到可以允許的水平標準在英國林業委員會小冊子已有介紹。
  3. As for the k production in high energy hics, we firstly study k + production. the results show that the kaon flow is sensitive to both the kaon - nucleon sigma term ( s and the equation of state of nuclear matter. the collective flows of both nucleons and k + mesons need a " soft " eos with compressibility k ? 00 - 300 mev, and 2 = 200 - 400 mev seems suitable to explain the measured k + flow

    研究表明k ~ +集體流在相對論重離子碰撞中對核態方程和k - n標量吸引項（ _ （ kn ） ）都是敏感的，計算結果表明核子和k ~ +介子的橫向集體流都需要壓縮系數在k 200 - 300mev范圍內較軟的核態方程，而大約為200 - 400mev的_ （ kn ）值對解釋k ~ +流產生是合適的。
  4. The effective coupling constants including isoscalar and mesons and isovector and mesons in the rmf are extracted from the dbhf results in symmetric and asymmetric nuclear matter. two sets of effective interactions in the rmf approach are deduced by imposing a condition, where the dbhf scalar and. vector self - energy or scalar self - energy and binding energy per nucleon at each density and asymmetry parameter are reproduced, respectively

    為了使我們提取的有效相互作用能夠準確地再現出dbhf計算的核狀態方程以及密度依賴的不對稱能，我們採用第二種萬法提取有效介子核子耦合常數，即要求在對稱核物質中，每個密度處ilif計算出的標量自能及總結合能與dbhf給出的標量自能及總結合能一致，提取出。
  5. The results show that binding energies per nucleon at each density and various asymmetry parameters fulfill the empirical parabolic law and the asymmetry energy is density dependent. it is found that both scalar and vector potentials of neutron in the neutron rich nuclear matter become stronger although the isospin dependence is not stronger. we compare our results with those in a simple method, where the dbhf nucleon self - energies are extracted from the momentum dependence of the single - particle energy

    首先我們要求在每一個密度及各種不對稱系數的核物質中，相對論平均場（ rmf ）計算出的核子標量與矢量自能與dbhf計算出的標量與矢量自能一致，從而得到在rmf下的密度依賴的有效介子核子耦合常數，包括同位旋標量介子。
  6. It is divided into port state control ( psc ) security check, flag state control ( fsc ) security check, ships quality appraisal, assistant business, report forms, the assurance of the target ship, electronic declare management, parameter design and purview management, the form design. the course of system implement is given in the thesis. the thesis emphasized to introduce the business logic of the psc security check and report forms 。 the implementation of pagestudio is detailed in the thesis

    深圳海事數字平臺分為港口國安全檢查（ psc ） 、船艦國安全檢查（ fsc ） 、船舶質量評價、輔助業務、報表、目標船的確定、電子申報管理、參數設計與權限管理、表單設計器9個功能模塊，在文中給出了系統開發環境搭建過程，並著重介紹了psc安全檢查與報表統計模塊的業務邏輯。
  7. 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。
  8. 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。
  9. The testing technique and system of the newly developed, miniaturized sputtering ion pump with low pumping speed has been developed in accordance with the standards formulated by machine industry

    摘要本文介紹了小抽速微型濺射離子泵的性能測試系統和參考機械行業標準確定的測試方法，探討了測量結果誤差來源。
  10. The interface of the sofyware is menu - styled. the components that deal with color and luminous density measurement, including standard input, system calibration, are emphasized

    整個軟體是菜單式的，重點介紹了色品坐標和亮度測量的軟體，包括標準輸入、系統定標和測量子程序。
  11. Now, with the rapid development of computer and electronics, there have been a great progress in the field of input / output device technology. among this field, pci has been a current standard interface of pc. and in order to accommodate the development of operating system, wdm has been a driver model adopted by industry generally. at the same time, in the respect of sensor ’ s application, a high precision and high integrated incremental rotary encoder has been an outstanding one among the displacement sensors. meanwhile, eda technology and cpld / fpga chip applied in the signal processing circuit are approved by a great number of engineers who are engaged in designing the electronic device

    目前，隨著計算機技術和電子技術的飛速發展， i / o設備介面控制技術領域有了長足進步。其中， pci介面成為主流的微機標準介面，而與操作系統平臺的發展相適應， wdm已成為業界普遍採用的驅動程序模式;同時，在傳感器應用方面，高精度、高集成的增量式旋轉編碼器已是位移型傳感器中的佼佼者，而eda技術和cpld / fpga器件在信號處理電路中的應用被廣大電子設計人員所認可。
  12. Abstract : the principle, scaling method and maintainance of neutron moisture gauge are introduced in detecting charge ( coke ) moisture content

    文摘:介紹了中子水分儀檢測爐料（焦炭）水分含量的原理、定標方法以及使用維護要點。
  13. We take the center of well as the origin of coordinates. we noticed that the electron ' s effective mass is different in the well and in the barrier, but did n ' t pay attention to the mismatch of the dielectric constant

    33 ）量于階中心，把量子階中心選作坐標原點，考慮了在階中和壘中電子的有效質量的不同，但沒有考慮在階中和壘中介電常數的失配性。
  14. 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。
  15. This paper describes the principle of neutron yield measurement with icf activation taking example for cu 、 - coincidence counting system based on pxi, software configuration and function, the counting method of neutron yield and the calibration coefficient

    摘要以銅為例介紹了中子產額活化法測量的原理、基於pxi的-符合計數系統、軟體結構和功能、中子產額的計算與實驗刻度因子標定等，最後結合實驗測試結果對系統性能進行了分析。
  16. In this paper, the contents and the methods of the impacting test to the particle separator vortex blades by the foreign object are introduced, the ultra dynamic strain device is used to carry on the measure of this experiment and obtained the strain - time history, three dimensional coordinate measuring method is used to measure the remaining distortion of the vortex blade, and the high speed photographic apparatus is used to carry on the photography of the impacting experiment

    本文介紹了對粒子分離器渦流葉片進行外物撞擊試驗的內容和方法，採用超動態應變儀對外物撞擊試驗進行了測量，獲得了渦流葉片不同外物撞擊下的應變-時間歷程，採用三坐標法測量了外物撞擊后渦流葉片的殘余變形，並採用高速攝影儀對外物撞擊渦流葉片的全過程進行了拍攝。
  17. " 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。
  18. 3 ) we tested total - family association, within - family association ( via tdt ), and linkage, between the bsrbl marker and bone phenotypes ( bmd and bone size ) at the spine and the hip ( femoral neck, torchanter and intertrochanter ) in chinese 402 nuclear families with a total number of 1263, and found the suggestive linkage ( p - 0. 037 ) between the il - 6 bsrbl maker and the li _ 4 spine bmd. no significant association and linkage was found for bone size and hip bmd. the present studies represented molecular genetic research of bone mineral density, and identified some factors related to bmd in chinese

    3 ）在徵集的402個核心家庭包括1263個個體組成的上海樣本中，利用傳遞不平衡檢測法（ tdt ） 、關聯分析和連鎖分析，檢測了白介素6基因和不同骨骼位點（腰椎、股骨頸、大轉子、轉子間區）的骨密度、骨大小之間的連鎖和/或關聯關系，並發現白介素6基因的bsrb工標記和控制腰椎骨密度的數量性狀位點（ qtl ）之間存在連鎖的證據（ p = 0 . 037 ） 。
  19. Featured with self - discipline, spiritual drive and stability, it impacts upon the administer ' s performance mainly through two dimensions of closely related factors, namely fulfillment & goal - setting, and the intermediary variable and the buffer variable of contextual factor

    管理者責任心主要通過兩個子維度成就感和目標設置中介變量及情景因素的緩沖變量影響工作績效，且二者存在較強相關性。
  20. Firstly, according to the characteristic that the doppler frequency shift signal can be approximated as a single sinusoid signal, the extended sinusoid signal retrieval ( pisarenko and esprit ) methods are presented and signal state and measurement formulations are developed, so the kalman filter recursive method is got. the brief introduction of low velocity moving target doppler frequency shift signal wigner - ville transformation and wavelet transformation expression are presented in this paper. secondly, because the clutter is gaussian distribution, cumement and high - order spectrum based methods are presented and the simulation results prove their good performance to suppress gaussian clutter in low velocity moving target doppler frequency shift signal processing

    一個方面是根據低速目標的多普勒信號可簡化為單一正弦波形式這一特點，得到了擴展的高斯色噪聲背景下的諧波恢復演算法，即高斯色噪聲中的pisarenko諧波恢復法和旋轉因子不變法（ esprit ） ；並推導了信號的狀態方程和觀測方程，進而得到基於卡爾曼濾波的遞推演算法對信號進行提取；本文還簡單的介紹了低速運動目標的多普勒頻移信號的wigner - ville變換與小波變換；另一個方面是針對雜波服從高斯分佈這一特點，提出了對接收信號求累積量和高階譜來對高斯雜波進行抑制。
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