second particle 中文意思是什麼
second particle
解釋
二級粒子-
Thus the second-lowest energy level of the particle in a cube is threefold degenerate.
於是立方體中的第二最低能級是三重簡並的。 -
The first particle exerts a force on the second one.
第一個粒子對第二個粒子施加一個力。 -
The second part of this thesis is devoted to the j / v particle polarization study for the phenix / rhic experiment
淪艾的見部分上要研究phenix rhic實驗中i 。 。 -
The first algorithm is low precise but simple and credible, the second is high precise but complex and incredible. 4 ) developed four kinds of methods aimed to improve precision and credibility of navigation system. the first is parallel sandia inertia terrain - aided navigation ( psitan ) ; the second is tercom + sitan, it can restrain two important disadvantages of sitan ; the third is particle filter - based terrain - aided navigation ( pftan ), the particle filter can reduce the error of navigation ; the last is tercom + pftan, where tercom is looked as monitor to ensure the credibility of navigation system
採用并行sitan方法來提高導航精度，並克服奇異值問題；提出了tercom + sitan方法，綜合利用兩者的優點，在保持sitan導航精度的前提下，有效地克服了sitan的兩個缺點；提出了一種基於連續蒙特卡洛濾波（常被稱為particlefilter ）的地形匹配演算法（ pftan ） ，有效地克服了利用sitan時由於地形隨機線性化帶來的誤差，使導航精度有較大的提高；提出了tercom作為監視器的地形輔助導航思想，並將其應用到連續蒙特卡洛方法上，較大地增加了系統的可靠性和精度。 -
Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation
在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。 -
The relativistic random phase approximation ( rrpa ) is a relativistic extension of the random phase approximation for studying microscopically nuclear dynamical excitations and giant resonances. the consistency of rrpa calculations requires two aspects : first, it demands that the relativistic mean - field wave " function of nucleus and the particle - hole residual interactions in the rrpa are calculated in a same effective lagrangian. second, the consistent treatment of rrpa within rmf approximation requires the configurations including not only the pairs formed from the occupied fermi states and unoccupied stat es but also the pairs formed from the dirac states and occupied fermi states
自洽的相對論無規位相近似理論的自洽性要求有兩方面的內容：第一，描述原子核的激發態性質和基態性質時必須從同一個有效的拉矢量出發；第二，相對論無規位相近似計算，不但要考慮正能的粒子-空穴組態的貢獻，而且還要考慮從fermi海核子態到dirac海負能核子態形成的對激發的貢獻。 -
In the first part, the basic knowledge of particle scattering in meteorology and physics was introduced. the particles to be discussed include aerosol particles, fog droplets and raindrops and the em wave band in the discussion is near - infrared. in the second part, the mie theory was briefly reviewed and was applied to investigate the scattering characteristics of spherical atmospheric particles, the result shows that in the visibility measurement meter using forward - scattering method, when the working wavelegth is between 0. 8 m ~ 2 m, the scattering angle is between 25 ~ 40, the distinguishability and the relative scattering intensity would be better than those under other conditions. in the third part, the superellipsoid was used to describe a wide range of shapes such as spheres. ellipsoids and cylinders. an improved t - matrix method which can be used to calculate arbitry shaped particle ' s scattering field was introduced, and the scattering characteristics of non - spherical atmospheric particles was investigated with this method
計算結果表明，從相對散射強度、同一方向上不同粒子散射的可區分程度來看，在散射式能見度探測儀器中，工作波長介於0 . 86 m 2 m ，探測角度選取前向25度40度時，探測的結果將會是比較理想的。第三部分中，使用超橢球方程來統一描述各種非球形粒子的形狀，然後使用t矩陣方法計算了一些形狀的非球形粒子的近紅外散射特性。另外，在本文中還針對球形粒子的散射場提供了一種三維可視化方法，使對散射場強度的空間分佈的理解更加簡單，直觀。 -
Because the structure of horomill is not prefect in practice, in the second section design horomill by consulting the structure of roller grinding and applying concurrent engineering, and empolders secondly autocad2000 by using visual basic 6. 0, and sets up parameter gallery of horomill. in the third section, the dynamic model of horomill is developed. the relationship equation between energy consumption and press, and the relationship equation among the diameter of the cylinder, the diameter of roller and the average particle size are established
由於筒輥磨的結構在實踐應用中並不十分完善，本文參考了輥式磨的結構特點，利用并行工程技術設計出變徑離心式輥碾磨機，並且應用visualbasic6 . 0對autocad2000進行了二次開發，建立了筒輥磨的參數化圖庫。 -
In classical mechanism the motion of the particle is governed by newton's second law.
經典力學中，粒子的運動服從牛頓第二定律。 -
On condition that the volume of particle is equal, the effective permittivity of penny shape particle is the biggest, that of the needle shape is second, and the spherical shape is the last. when the thicker of shell is constant and the radius of core is bigger, the effective permittivity is less. the effective permittivity will change acutely when the thicker of shell is close to the radius of core ; with the radius of core increasing, the effective permittivity of core - shell type particle will approach that of no shell type particle
在相同的形狀下（如便士形和針形） ，粒子的大小對于等效介電常數沒有影響；對于核殼形夾雜顆粒復合材料，當殼的厚度一定時，隨著核的半徑的增大，復合材料的等效介電常數越來越小；當殼的厚度和核的半徑較接近的時候，復合材料的等效介電常數將會發生急劇的變化；隨著核的半徑的不斷增大，核殼型顆粒夾雜復合材料的等效介電常數將逐漸的趨近於沒有殼的夾雜顆粒復合材料的等效介電常數。 -
That the alloying element mn and ti substitutes the atom of fe in the rich iron - phase ( al, si, fe ) and resumes the part of the element si in primary phase refines the second phase. at the same time, the volume percentage of second phase is increased. at the course of solidification, the alternating current field changes obviously the microstructure morphology of the al - 20si - 5fe - x alloy and the number of particle eutectic structure is increased
合金元素mn 、 ti通過占據富鐵相（ al ， si ， fe ）中鐵原子的晶格位置，同時消耗部分初生相中的si元素，形成四元富鐵相（ al ， si ， fe ， mn ） ，細化了合金中的第二相，同時提高第二相體積百分數。 -
This kind of new particle is the neutrino, and scientists believe they exist in large number in the universe. take the solar neutrinos, for example, every second about one million billions 10
科學家相信，中微子在宇宙中的數目相當多，就以太陽製造的中微子為例，它們到達地球的數目確實是天文數字：每秒約有一百萬億10 -
When the stress at the tip of crack is inflicted on the m - type ferrite particle dispersed in matrix as a second particle, not only the toughness of composites will be pro ved because of the non - elastic area produced by the particle but also the strength change of magnetic field and the stress distribution in the structural ceramics will be detected by the strength of spontaneous magnetization varying while magnetic materials being pressed or drawn
這是因為當結構陶瓷中裂紋尖端的應力作用在彌散於基體內的鐵磁體二相粒子上時，鐵磁粒子不僅在裂紋尖端周圍產生的非彈性區域使復合材料的韌性提高；而且還能利用鐵磁材料在外應力作用下自發磁化強度發生變化的性質，通過測量復合材料在應力作用下磁場強度的變化，探測出結構陶瓷中的應力分佈情況。 -
The measurement erases the information from its original location, but because of entanglement, that information resides in an encoded form on the second particle, no matter how distant it may be
這個量測的動作會清除該處的資訊，但因纏結的緣故，不論粒子間的距離有多遙遠，該資訊會以密碼的形式儲存在第二個粒子上。 -
The simulation of debye theory and the experimental results can prove the results obtained. the relation of ripple frequency of the second rainbow with the diameter of particle is simulated by lorenz - mie theory, and used in particle sizing with high precision
利用lorenz mie理論模擬了均勻粒子二階彩虹的ripple頻率與粒子直徑的關系，獲得了ripple頻率與直徑的經驗公式，並用於粒子直徑的實驗測量中，測量精度很高。 -
The thesis mainly studies the assistance model of the structure evolution when the hsla steel is heated, works out the mathematic expression of the grain boundary in the process of interaction between grain boundary and second - phase particle, and develops a new physical model when grain are pinned by the second - phase participle
本文主要研究了碳鋼和微合金鋼在加熱過程中的組織演變規律的部分輔助模型，推導了晶界與二相粒子相互作用過程中變形晶界的數學表達式，建立了新的二相粒子釘扎晶界的物理模型。 -
On the basis of theoretic research on developing motivity of relative enterprises, targeting with the development motivity of logistics enterprise, the essay analyzes the developing motivity field model in logistics enterprises according to the logistics field theory, refers to the particle motion and bearing force, uses the newton ' s first and second laws, discusses the relationship between enterprise development level and enterprise bearing force or each motivity resource field, and puts forward the countermeasures on promoting the development of logistics enterprises
摘要在有關企業發展動力的理論研究基礎上，針對物流企業的發展動力問題，根據物流場理論，對物流企業發展動力場進行分析，構建物流企業發展動力場模型，借鑒質點運動與受力，應用牛頓第一、第二定律，探討企業發展水平與企業發展受力或與各個動力源場強之間的關系，提出推動物流企業發展的策略。 -
Let us compare the motion of any particle of the medium with that of a second particle to the right of the first.
讓我們來比較一下媒質中任一質點和其右邊另一質點的運動。 -
Teleportation of an unknown quantum state includes three processes, preparing entangled epr states, performing joint bell state measurements on the particle that will be teleported and one particle of the epr state, and then performing a unitary transformation on the second particle of the epr state. a scheme for teleporting an arbitrary three - particle state is proposed
從基本的量子邏輯門討論出發，對單粒子、二粒子摘要激光駐波場中原子的動力學行為和量子態的隱形傳送任意量子態的隱形傳送過程建立了量子邏輯電路，為量子態隱形傳送過程的實現提供理論依據。 -
One specific grain, the second particle that the researchers analyzed, grabbed their attention
有一顆星塵，也即研究者分析的第二顆微粒引起了他們的注意。
分享友人