plane of second order 中文意思是什麼
plane of second order
解釋
次級平面-
In order to take the influence of the internal force from translation into consideration, the design of in - plane buckling of unbraced frames adopted a new second - order elastic method to calculate the structural internal force, e. g. the imaginary horizontal loads method
為考慮變形對內力的影響，對無支撐框架的平面內穩定計算提出採用假想水平荷載法進行二階彈性內力分析，以與國際上鋼結構設計相接軌。 -
The paper illustrates the influence of control force on the response of second order surging system. from this paper ' s analyzing, the partition of phase plane is sound
從分析中可以看出，幾點控制器對相平面的劃分是合理的，各個控製作用對系統運動的影響是有相對獨立性的。 -
The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system
本文從麥克斯韋旋度方程出發，建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程，詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置；推導了mur一階和二階邊界條件在圓柱坐標下的差分格式；給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場變換技術；最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場，並分析了天線的一些參數的變化對天線輸入阻抗的影響，得出了一些有用的結論。 -
With the plane wave representation of the green ' s function, the second - order scattered coefficients are divided into two components related to the coincidental waves and the anti - coincidental waves, which are dependent on the relationship between the single scattered field and its conjugate
通過將格林函數做平面波展開的方法，二階散射系數分解成與同向波和反向波有關的兩部分，同向和反向分別是按單次散射場和其共軛場的耦合方式而劃分的兩種不同情況。 -
Secondly, in this part, we will introduce the notation of average geodesic curvature for curves in the hyperbolic plane, and investigate the relationship between the embeddedness of the curve and its average geodesic curvature. finally, we will employ the minkowski ' s support function to construct a new kind of non - circular smooth constant breadth curves in order to attack some open problems on the constant width curves ( for example, whether there is a non - circular polynomial curve of constant width, etc. ) in the second part, we will first follow the ideas of gage - hamilton [ 28 ], gage [ 26 ] and the author ' s dissertation [ 47 ] to present a perimeter - preserving closed convex curve flow in the plane, which is from physical phenomena
其次，對雙曲平面上的曲線引入平均測地曲率的概念，並討論雙曲平面上凸曲線的嵌入性與它的平均測地曲率之間的關系，其目的是為了將雙曲平面上曲線的性質與歐氏平面中曲線的性質作一些對比；最後，我們利用minkowski支撐函數構造了一類新的非圓的光滑常寬曲線，其目的是想回答有關常寬曲線的一些未解決問題（如是否存在非圓的多項式常寬曲線 -
The first, the achievement of dirichlet series in the right half - plane and in the complex plane for a few years are related. on the base of this, when the general exponential condition holds, and under the condition of lim = 1, i study infinite order dirichlet series in the right half - plane and in the complex plane, and obtain the relations between the order of growth of dirichlet series and conffieients. the second, we study the factorization of entire function in the condition of composition of functions, and obtain the necessary conditions of some pseudo - prime or e - pseudo - prime functions
本文分兩部分，第一部分就右半平面上的dirichlet級數和全平面上的dirichlet級數這兩方面對近年來的研究成果作了簡單的敘述，在此基礎上，作者在一般的指數條件與（ ? ）情形下，對右半平面上和全平面上的無限級dirichlet級數作了系統研究，獲得dirichlet級數的系數與增長性之間關系的一些新結論。第二部分研究整函數的因子分解，得到判斷函數為擬素的或e ?擬素的一些必要條件。 -
The main results : theorem 1. 2. 2 the function ( u ) - satisfies the integro - differential equation where, theorem 1. 3. 2 if * ( ) s analytic on the complex plane except for the roots of in second chapter, we consider a risk process in which inter - arrival times have a phase - type ( 2 ) distribution, a distribution with a density k ( t ) satisfying the following second order linear differential equation : the conditions are satisfied for all convolutions of two exponential distributions ( with not necessarily equal means )
定理1 . 3 . 2若函數~ * （ ）除了方程（ 1 . 3 . 1 ）的極點外，在整個復平面上都是解析的，則ddas 。 type風險模型是風險理論中應用比較廣泛的一類風險模型dicksonandhipp （ 1998 ）研究了索賠時間間隔服從erlang間分佈的情況，並於2001年aun了其罰金折現期望滿k一積分微分方g
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