論量常數 的英文怎麼說
中文拼音 [lúnliángchángshǔ]
論量常數
英文
stoichiometric constant-
In this thesis, the author analyses the deficiency in detecting and controlling function of the computer detecting and controlling system utilized in present transforming station. the strategy of design of software on operation and direction of 5 00kv transformer station is presented. it points out that we can deduce the mathematic analytical formula using the current, voltage and power of two terminals of transmission line as input. on this basis, we do realtime calculation of 500kv transmission line ' s parameter. we can also deduce the linear analytical formula of three - winding autotransformer ' s resistence using its current, voltage and power as input. the corresponding software is programmed on this basis
論文提出以輸電線路本端和對端電流、電壓、功率作為輸入量,導出了超高壓長線的波阻抗和傳播常數的數學解析式,在此基礎上進行了500kv輸電線路實時參數計算;提出以三繞組自耦變壓器的電流、電壓、功率為輸入量,導出了自耦變壓器繞組的電阻、電抗的線性解析式並進而對變壓器的實時參數進行計算;在此基礎上編制了相應的軟體。Given the initial conditions including ( 1 ) number density distribution in space which has the similar form to the present day ones, ( 2 ) both the power law and gaussian mass functions for clusters, and ( 3 ) two different velocity distributions which one has a constant dispersion and the other is described by the eddington formula, the dynamical evolution of globular clusters in our milky way galaxy is investigated in detail by means of monte carlo simulations
本文採用與觀測結果具有相同形式的球狀星團空間密度分佈函數,在給定兩種球狀星團系統的初始質量譜(冪律的和對數高斯的)和兩種球狀星團系統的初始速度分佈函數(愛丁頓速度分佈函數和常數的速度彌散度)條件下,我們採用montecarlo的方法對球狀星團系統的動力學演化進行討論。When the field is slowly - varying, the scalar field potential acts like a cosmological constant. in addition to the quintessence models, many other theories for dark energy have been proposed, including models based on super - symmetric gauge theories, super - gravity, small extra dimensions, large extra dimensions, quantum field theory effects in curved space - time. all these models are essentially based on the existence of a mass less scalar field acting at a cosmic scale
除了真空場模型外,科學家亦提出其他解釋黑暗能量的理論,這些模型建基於不同的物理理論或假設,例如超對稱規范理論超重力增加一些小或大的空間維數量子力學在彎曲時空的影響等等,這些理論模型,返本溯源,其實背後都假設存在著一個特性類似於宇宙常數的無質量純量場。Witten ' s open string field theory formulate the interaction of bosonic open strings in the language of noncommutative geometry. compactification of matrix theory on the noncommutative torus was argued to correspond to supergravity with constant background three form tensor field. more generally, it has been realised that noncommutative gauge theory arises in the worldvolume theory on d - brane in the presence of a constant background b field in string theory
Witten的開弦場論用非對易幾何描述了玻色開弦的相互作用;在非對易torus上的矩陣理論的緊化對應于帶有常數三形式張量場的超引力;更為普遍的,非對易規范理論可以自然地產生在帶有常數b背景場的三維d - brane上。Based on the hmiltonian expression for hydrogen atom in combination with the theory proposed, the theoretical values of the hydrogen atom ' s energy, ground state energy and spectrum constant and the electron orbital angular momentum are given
根據氫原子的量子哈密頓量表示,結合創新的量子算符代數理論,得到氫原子的能量、氫原子的基態能量、電子軌道角動量、氫原子的光譜常數等各種物理量的理論值。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。String theory, which unites gravity with quantum mechanics, offered the hope of explaining the attenuated cosmological constant
統合重力及量子力學的弦論,似乎能為微小的宇宙常數提供一個合理解釋。At last, we discuss the structure of d - stars in the spacetime with a nonzero cosmological constant. the metric and effective mass formula of d - stars have been educed
本文的第三部分,主要討論了帶有非零宇宙常數時空中d星的結構,導出了它的度規和有效質量公式。In the second section of chapter 2, the fact that the essential interest rates of all nodes differ from each other is discussed, a non - homogeneous differential equation model of interest rate - amount of circulating fund is established, and it is proved that the sum of the weighted interest rates of each node in the financial network still remains a constant and that the difference of the instant interest rates between two nodes will finally approach the difference between their basic interest rates. in the third section of chapter 2, the differential equation model of interest rate - amount of circulating fund in an open system is studied, the laws of changes of interest rate are taken into account when fund is injected into or withdrawn from the node or when fund is injected into the network or withdrawn from the network, and the stability of equilibrium solution is proved based upon lyapunov stability theory. in the last, the equation model of interest rate - amount of circulating fund in the financial network with time delay is studied, and a necessary and sufficient condition for the existence of periodic solution is obtained to the interest rate - amount of circulating fund equation with delay
本文第二章首先建立了封閉系統的利率?流通量微分方程模型,證明了各結點利率加權和為常數即金融市場利率均衡原理,以及各結點利率極限為整個網路平均利率;其次在各結點基本利率不相同的情況下,建立了非齊次利率?流通量微分方程模型,證明了金融網路各結點利率加權和仍是一個常數,並證明了各結點兩兩之間的即時利率之差最終將穩定地趨于其基本利率差;此外,還研究了開放金融網路利率?流通量方程模型,考慮了結點自身追加資金和提走資金的情形以及網路外部注入資金和向外部轉移資金情形下的利率變化規律,用lyapunov穩定性理論證明了模型均衡解的穩定性;最後,還研究了具有時滯的金融網路利率?流通量方程模型,並給出了具有時滯金融網路的利率流通量方程具有周期解的充要條件。According to the theory of light transmission, we derived the expression of rotation angle as a function of the dielectric constant conductivity of er fluid, and ( the angle between the electric vector of linearly polarized light and electric field ) from maxwell ' s equations and fresnel reflection, on the condition of several appropriate approximations and assumptions
進而導出了非均相結構電流變液在外電場與光場交互作用下旋光角與(入射線偏振光振動方向與外加電場方向間夾角)及參數(為外加電場e 、分散顆粒介電常數、體積分數、絕緣油介電常數、位置矢量( ? )等量的函數)的西北工業大學應用物理系碩士學位論文摘要理論表達式。The mechanical parameters were evaluated by cure fitting of the experimental data. from this model, the deformation, stress of the grape skin and the change of the inner - pressure was obtained. it was found that the change of the volume for unit of force is a constant
並利用該模型對葡萄受到壓縮外力作用時,外力、變形、內壓改變量和葡萄皮應力之間的關系進行了計算和分析,得到了體積改變量的變化值是一個常數,使得各力學量與葡萄總體變形量的關系是非線性關系的結論。This paper gives a method to measure the conductivity base on choosing frequency. after adding to the electrode with two ac square waves of appropriate frequencies, we can measure the output dc voltage of the circuit
本論文提出了一種選頻電導率測量方法,選擇兩個合適頻率的交流方波施加於電極,測出電路輸出直流電壓,通過解方程組求出時間常數,然後求得溶液電阻,進而得到溶液電導率。The fine - structure constant is an important zero dimension constant in the atomic physics. this article introduces the origin of fine - structure constant, and discusses its physical significance, and theoretical calculation
摘要本文介紹原子物理學中重要的無量綱常數之一的精細結構常數的由來,討論它的物理意義和理論計算。If a scalar field changes slowly, it resembles a constant, both in its fixed magnitude and in its lack of directionality ; relativity theory predicts it will produce a gravitational repulsion
如果純量場變化緩慢,它就會有固定的大小,而且沒有方向性,就像一個常數一樣;相對論預測,這種情況會產生重力排斥效應。The factors affecting the in - plane thermal conductivity of thin films discussed include the mass of particles, the well depth, and the lattice constant, etc
從粒子質量、勢阱深度、晶格常數的變化等方面討論了其對薄膜兩種材料的切向導熱系數的影響。Based on the method of cell ( moc ), the effective elastic properties of resined fiber bundle with parallel or arbitrary orientation was studied, and a micro - mechanical model of resined plain - woven carbon fabric was established with the classical laminate theory, then, the method of calculation of the elastic moduli of resined plain - weave carbon fabric was presented, and can be extended to the whole carbon / phenolic composite
基於元胞法( moc )計算了預浸樹脂的平直以及任意取向的纖維束的有效彈性常數。基於經典層板理論用替代層法建立了預浸樹脂平紋機織碳布的細觀力學模型,進而給出了預浸氨酚醛樹脂的平紋機織碳布的彈性模量的計算方法,該方法可推廣到碳酚醛復合材料。According to theory of the environmental isotope tracer and theory of deuterium excess ( d - excess ) parameter with the atmospheric water and the groundwater, the dissertation has comprehensively researched on the regional karst water and the pressure - bearing karst water in deep maoba syncline in virtue of routine geologic and geochemistry investigation
根據環境同位素示蹤、大氣降水氘過量參數和地下水氘過量參數演化理論,結合常規地質、地球化學工作,對該地區域巖溶水和毛壩向斜段核部深層巖溶承壓水進行了綜合分析研究。By extending the pyroelectric theory of a ferroelectric bilayer, we have presented the effective pyroelectric coefficient of a ferroelectric sandwich structure by use of the electrostatic theory. when the pyroelectric coefficient of the interface has a large deviation from that of the two - sided slabs and the dielectric constant of the interface is low, the effective pyroelectric coefficient of the sandwich structure may be one or two order higher than the largest pyroelectric coefficient of the components
我們應用靜多層結構鐵電系統的物理性質研究摘要電場理論,推廣了鐵電雙層膜的熱電理論,給出了鐵電三明治結構的有效熱電系數,發現在界面層的熱電系數與上下兩層的熱電系數差異較大,且界面層的介電常數較小的情況下,三明治這種復合結構材料的有效熱電系數比單一組份材料的熱電系數可以提高一到兩個數量級。In the second part, we discuss the binding energy of the impurity in finite gaas / gai. xalxas quantum wire in the first place, in which the dismatch of effective mass and dielectric constant between the well and the barrier is taken into account
在第二部分,首先討論了有限深gaas ga _ ( 1 - x ) al _ xas量子阱線中雜質態的束縛能,其中考慮到了阱壘中電子有效質量及材料中介電常數的失配性。The advantage is that it can be used to directly calculate the real physics quantities in an economic way. in this way, we need n ' t perform the analytical continuation from the result in the itf. this new rule has the following property ; the vertex is only related with the coupling constant and independent of the orientation of the momenta, one half of the vertex components vanish
它的優點在於能直接計算與實際物理相關的觀測量,不用象虛時溫度場論中做計算后再作解析延拓,使得計算得到一定的簡化,並具有如下特點:頂角函數只與耦合常數相關,獨立於外線動量方向,而且一半的分量為零。分享友人