spherical model 中文意思是什麼
spherical model
解釋
球形模型-
A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper. formulae of the restriction and prolongation in mgm computation is deduced, and a 3d program of mgm is accomplished, which can solve the field distributions in electron optical systems for various electrostatic lenses. the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively. comparing these two results in view of computational efficiency and computational accuracy, it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem. this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time
本文將一種高效率的數值計算方法? ?多重網格法引入三維靜電場分佈的計算，多重網格法利用限制和延拓可迅速求得滿足精度要求的場分佈.研究了求解各種靜電透鏡電子光學系統三維場分佈的多重網格法程序，驗算了靜電同心球模型的三維場分佈.通過與目前在場計算中常用的有限差分法進行比較，可以看出多重網格法的計算效率和計算精度優于有限差分法.本文表明利用多重網格法計算三維場大大提高了場分佈的計算效率，縮短了計算時間，因此為后續計算打下了良好的基礎 -
The drive principle of the spherical manipulator based on friction is studied, and simplified to be a two - mass oscillator model, though which the dynamics characters, optimization, frequency respond, and the control strategy is studied. firstly, based on the former experiment, the investigation is on the dynamic characters of the friction drive principle
論文將對球基微操器的摩擦力驅動原理做深入分析，將其簡化為二元摩擦振子模型，通過對二元摩擦振子性質的討論，對應用摩擦力驅動原理的球基微操作器的運動狀態，動力學特徵，優化設計，頻響問題以及控制方式進行深入分析。 -
Corneal surfaces in eyes with regular astigmatism are thought to be toroidal surfaces. based on mathematical models for corneal surfaces before and after treatment, a corneal ablation model is given for such refractive errors as spherical myopia, compound myopic astigmatism, and simple myopic astigmatism. a similar corneal ablation model is also given for such refractive errors as hyperopia, compound hyperopic astigmatism, and simple hyperopic astigmatism
採用超環面（ toroidalsurface ）建立起規則散光下的角膜曲面模型方程;定量研究了手術光學區屈光不正兩種通用的矯正模型，一種模型適用於單純近視、復性近視散光、單純近視散光的矯正，另一種模型適用於單純遠視、復性遠視散光、單純遠視散光的矯正;另外，作為影響手術效果的重要因素，提出了一種用於光學區直徑和過渡區寬度均可調節時過渡區角膜切削量的計算模型。 -
Methodology for absolute measurement is proposed by using an outside installation mechanism in laser tracking measurement system, which has an important reference value in practicality in high accuracy assembly and inspection of large - scale mechanical field. spherical tracking servo mechanism " s model described in this paper not only is a new thought but also have much reference value in the mechanical design and other industrial machines design
本文提出的外置式激光跟蹤測距系統應用於無導軌曲線測量的設計方法在大型機械現場組裝與安裝中具有較高的參考價值和實用價值，提出的球形跟蹤伺服機構的設計思想，不僅簡化了伺服機構，對跟蹤伺服機構的設計提供了新思路，而且對機器人設計及其他工業領域機構設計都具有一定的參考價值。 -
Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented
許多行星（如木衛三，水星，地球，木星和土星）和恆星（如太陽）具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動，磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線，即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色，並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型 -
Chapter 5. based on the measured refractive index distribution curve, according as the theoretical model of light transmission in the grin medium, using quadrivalent runger - kutta method to carry out the light tracking, by this means the mainly imaging character index of the micro - lens such as foci, longitudinal and transverse spherical aberrations aberration etc is calculated. i
第五章從測量所得折射率分佈曲線出發，根據梯度介質球內光線傳輸的理論模型，用四階runger - kutta方法進行光線追跡，計算了此種梯度球的縱橫向球差等光學特性，給出所製作梯度折射率微球透鏡成像性能的評價。 -
The point blast induced spherical wave is the especial instance of the ellipsoid shock wave. at last, the experimental data in alcohol are in good agreement with the calculated results of the model by analysis of the data of the laser pulse induced the laser plasma shock front by acoustics means
最後，設計應用聲學方法對酒精中產生的激光等離子體沖擊波波前傳播過程進行測試，對兩個不同方向上激光等離子體沖擊波波前測試數據的分析表明，旋轉橢球面的沖擊波模型與實驗測量結果相吻合。 -
Secondly, the formula of the shock front of the spherical wave in the air is extended to the model of circumrotated ellipse and the process of the shock front of in the water in term of the transmitting characteristic of the laser plasma shock wave in the air
其次，從空氣中激光等離子體沖擊波波前的傳輸特性出發，將空氣中點源爆炸球面沖擊波波前衰減傳播公式推廣到非中心完全對稱情況，提出旋轉橢球面沖擊波前傳播公式；建立水中的激光等離子體沖擊波波前衰減傳播模型。 -
According to the designing plan, the mathematical model of spherical pendulum is more simplified in two aspects, and the results we get has the same form with the mathematical model of simple pendulum. then a rule of kinematical of pendulum in relative coordinate is gotten
本文根據方案中遇到的主要工況將球面擺的數學模型進一步簡化為兩個主運動方向上的擺動的運動微分方程，簡化結果與單擺的數學模型一致，得到了擺錘在相對坐標中擺角的變化規律。 -
Einstein s original cosmological model, introduced by him in 1917, was a static, homogeneous model with spherical geometry
愛恩斯坦在1917年發表的宇宙模型是一個靜態均勻及具有球狀對稱的宇宙。 -
For confirming the results, a full - size model ( dj / dj = 0. 6, t / t = 1. 5 ) was analyzed by means of strain gauge test. the reliability of finite element analysis was proved because the results basically accorded with that of the test. secondly, in this paper, in order to carry out a fair assessment of the reinforcement design on spherical shell with transnormal nozzle, a comparison of reinforcement method was done between jb4732 - 1995 steel pressure vessels ? esign by analysis appendix a4 and hg20582 - 1998 specification for stress calculation of steel chemical vessels
為了驗證ansys分析結果的可靠性，對其中一組參數下（開孔率0 . 6 、厚度比1 . 5 ）的模型容器，採用電測法進行了應力測試，並將得到的實驗結果與有限元結果進行了比較，二者在應力分佈狀況和大小上均基本吻合，證明此種結構運用ansys進行分析，其結果是完全可靠的。 -
The approach of obtaining the guidance coefficients can be utilized in the situations in which more than four coefficients are hired for guidance to enhance the guidance performance. in addition, more precise earth model, which is non - spherical and will circle around its body axis, can be considered, and this will lead to more true results
最後，本文對進一步的工作提出了建議，認為可以考慮用四維以上的制導參數確定反饋增益系數以改善其制導性能，另外，可以進一步考慮地球旋轉時影響飛船再入段縱程的因素，使得擬合結果更接近實際情況。 -
A set of non - linear differential equation of this model is formulated based on lagrange ’ s equation. the tension of the cable, the control force of translation and the control torque of rotation are obtained by the method of newton ’ s laws in vector space. the tethered mass system is modeled as a spherical pendulum
本文基於一種常見的繩系單體系統，運用lagrange方程建立了該系統的非線性運動微分方程，採用矢量法對該運動微分方程進行了校核，並推導出吊索的張力、變幅控制力和回轉控制力。 -
To the level control problem of a spherical tank, two model - free control methods are proposed. in the former method, the takagi - sugeno fuzzy model is used to tune the neuron controller gain. in the latter method, the model - free control method using the neural network model proposed for nonlinear plants is presented
針對具有非線性特性的球形容器液位受控對象，從增益自調整和非線性補償兩個角度，分別提出了兩種非模型控制方法，前者採用t - s模糊模型對神經元控制器的增益進行在線整定，後者使用本文建立的非線性神經元網路對球形容器進行非模型控制。 -
Three non - spherical symmetry dibaryon chiral soliton in skyrme model
模型的3個非球對稱雙重子手征孤子 -
Tide stress of the radially heterogeneous spherical elastic earth model
球狀徑向不均勻彈性地球模型的固體潮應力 -
Numrical calculation of the tidal stress field inside the homogeneous spherical elastical earth model
均勻彈性地球模型內部固體潮應力場的數值計算 -
The effects of the fabrication conditions on the crystal structure, grain size, micromorphology and electrochemical performance of these materials have been studied in depth. the reaction mechanism of the low - heating solid - state reaction method has also been investigated. in addition, a novel electrochemical method ( rpg method ) based on the concept of " ratio of potentio - galvano - charge capacity " has been for the first time developed to determine the diffusion coefficient of lithium - ion within insertion - host materials on the basis of the spherical diffusion model
本論文較系統地考察了低熱固相反應法合成鋰離子電池正極材料的可行性問題，研究了工藝條件對材料的晶體結構、晶粒尺寸、微觀形貌及電化學性能等的影響，探討了低熱固相反應的機理，並通過引進「恆壓-恆流充電容量比」的概念，給出了一種測定鋰離子嵌入脫出固相擴散系數的新方法。 -
The isotropy analyses indicated : the nitrogen density spatial distribution of 0 ~ 100cm depth displays the interest of moderate spatial correlation, its theory pattern accords with the exponential model. but the nitrogen density spatial distribution of 0 ~ 30cm depth is the very feeble correlation, its theory pattern accords with the spherical model
各向同性空間分析結果表明， 0 100cm土壤層厚度氮密度的空間分佈體現為中等的空間相關性，它的理論模型符合指數模型；而0 30cm土壤層氮密度的空間分佈則體現為很弱的相關性，它的理論模型符合球狀模型。 -
This is evident from the spherical model when the two points are diametrically opposite.
在球面模型中當兩個點在直徑相對兩端時這是很明顯的。
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