momentum theory 中文意思是什麼
momentum theory
解釋
動量理論-
Angular momentum theory atomic structure
角動量理論與原子結構 -
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。 -
Procreant knowledge expression and forward inference engine are adopted in the method of fault diagnosis based on expert system theory. in the fault diagnosis applying neural network theory, six kinds of improved arithmetic of back - propagation arithmetic, including gradient descent with momentum, variable learning rate back - propagation, resilient back - propagation, quasi - newton, levenberg - marquardt and conjugate gradient, are applied to diagnose the faults of electric load manage center and solid state power controller. different diagnostic results gotten by simulation are compared at last
在基於專家系統的故障診斷方法中，採用了產生式知識表達和正向推理機制；在基於神經網路的故障診斷方法中，則分別採用了bp神經網路的附加動量法、自適應學習速率、彈性bp演算法、擬牛頓法、共軛梯度法和levenberg - marquardt法對電氣負載管理中心和固態功率控制器的故障進行診斷，並對由模擬得到的不同診斷結果進行比較。 -
The impacts of both the velocity head and momentum distribution in the t - junction of a tailrace surge tank on the critical stable sectional area of the tank were analyzed by using gardel ' s empirical equations for t - junction flow. based on thoma ' s theory, a formula of the critical stable sectional area is derived. 5
基於gardel關於三通管水頭損失的經驗公式，研究分析了連接管處的速度水頭以及進出調壓室水體與尾水隧洞水體之間的動量交換，對有連接管的尾水調壓室穩定斷面積的影響，並在托馬（ thoma ）假定基礎上，推導出相應的調壓室穩定斷面的計算公式； 5 -
It is concl uded that dental baffle - pier can increase energy dissipation rate of stilling b a sin and decrease engineering cost. the obvious economic benefits and the expected effect of additional momentum hydraulic jump theory are achieved
結果表明:採用齒墩設施，可增進消力池的消能作用，並取得顯著的經濟效益，達到了附加動量水躍理論所預期的效果。 -
Since in the few - body glauber theory the core and valence nucleons of a halo nucleus are treated separately, the obtained expressions of the reaction cross section, the nucleon removal cross section and the momentum distribution are all involved in multidimensional integrations
由於在少體近似glauber模型中暈核被分成核芯和暈核子來處理，所以得到的暈中國原子能科學研究院博士學位論文核散射反應截面、核子逃逸截面以及動量分佈的計算公式均包含高重積分。 -
Therefore we could carry out numerical calculations and obtain the reaction cross section, the nucleon removal cross section and the momentum distribution in the scattering of a halo nucleus with any types of density distributions. we compare the reaction cross sections calculated in the few - body glauber theory and the optical - limit glauber theory
進一步對27p 、 28p反應截面的研究分析表明，考慮核芯2751的增大可以很好解釋實驗測量得到28p反應截面的增大，而要解釋27p反應截面的異常增大，需要同時考慮核芯2 「 si增大和具有非常彌散空間分佈的2s ， ， :態暈核子。 -
Governor zhou also applied pareto s theory imaginatively to argue for ensuring that there is pareto improvement when determining the reform momentum
周行長也極具創意地應用帕累托的理論，指出在決定改革步伐時要確保取得帕累托改進。 -
At first an analysis of the basic principles of the vertical - axis variable - pitch turbine is given including two methods to calculate the induced velocity. one is the three different streamtube - methods which are single - disk single - streamtube ( sdst ), double - disk single - streamtube ( ddst ) and multi - streamtube ( mtt ) method based on the momentum theory, the other is the vortex method ( vtth ) based on the potential eddy theory
一是根據動量定理的流管模型得到的求解誘導速度的單盤面?單流管方法（ sdst ） 、雙盤面?單流管（ ddst ）方法、多流管（ mtt ）方法；二是根據勢渦理論得到的求解誘導速度的的渦方法（ vtth ） 。 -
In the present work, there are two methods to design the shrouded - propeller. one is based on the blade element and momentum theory, the other is based on the ufbng - line ( surface ) theory derived from circumfluence theory
在實際工作中，函道螺旋槳的設計有兩種方法，一種是基於葉素理論與動量定理的工程方法；另一種是基於升力線（面）方法的環流理論方法。 -
Based on the hydrodynamic, by using momentum theory to the liquid in the flow channel, the computational formula of the air exciting - vibration force is acquired. by using four - step runge - kutta method, the periodic response results of the elastic rotor system with one single - disc are gained. then the dynamic characteristics of the rotor system at the certain rotate speed and the certain physic parameter of system are analyzed by using the phase spaces and poincare maps of this system
基於流體動力學，通過對葉片流道內的流體模型應用動量定理，得到此汽流激振力模型，並採用四階龍格庫塔法，得出了單盤彈性轉子系統的周期響應規律，然後根據系統的相軌跡及poincare映射圖，分析了系統在特定轉速及特定的轉子系統參數下的運動特徵。 -
Abstract : a continuity wave model is put forward for the dispersion processof liquid - liquid two - phase system, by coupling mass and momentum conservation equations of two - fluid model. the conditions that result in a dispersion choke and the weak instability of a dispersion process are derived from the model. the phenomena of catastrophic inversion and transitional inversion are explained. the effect of drop size distribution on the maximum volume concentration of a emulsion is predicted using the model. according to the theory herein, emulsion inversion is the regime transition of liquid - liquid system due to the instablity of a dispersion process. the effect of drop size distribution on the maximum volume concentration of a liquid - liquid emulsion only occurs in a certain range of weber numbers
文摘:以雙流體模型為基礎，通過質量守恆方程和動量守恆方程的耦合，提出了液-液兩相系中彌散傳質的連續波模型.由該模型得到彌散傳質過程阻塞和彌散傳質過程弱不穩定性產生的條件，計算了液滴尺寸及其分佈對乳化液極大堆砌分數的影響，解釋了劇變型乳化逆變和漸變型乳化逆變現象.研究結果表明，乳化逆變是由於彌散傳質過程的不穩定性而引起的懸浮體型態的改變，隨液滴尺寸多分散性的增大，極大堆砌分數增大；隨液滴平均尺寸的增大，多分散性對極大堆砌分數的影響減弱；當韋伯數足夠大時，液滴尺寸及其分佈對乳化液極大堆砌分數無影響 -
There is another conspiracy theory, denied but gaining momentum, that the club would not be troubled by mourinho ' s departure
現在還有一種陰謀理論，稱穆里尼奧的離開不會給俱樂部帶來什麼麻煩，雖然這種說法被否認了，可還在流傳著。 -
Within the framework of two - phase flow theory, an analysis is carried out based on the momentum and continuity equations of fluid mechanics. corresponding to the physical process of the interaction of the solid and fluid phase, a perturbation analysis is systematically developed
還引用了兩相流理論中從低濃度兩相流中固相和液相的相互作用著眼，引入攝動分析的理論，並通過動量方程直接得出了懸移質泥沙濃度分佈規律的方法。 -
Then, four different computation methods are applied to compute the hydrodynamic performance of the rotor, which are single - disk single - tube method ( sdst ), double - disk single - tube method ( ddst ), multi - tube method ( mtt ) that are based on momentum theorem and vortex method ( vtth ) that is based on potential eddy theory
然後，採用基於動量定理的單盤面?單流管方法（ sdst ） 、雙盤面?單流管（ ddst ）方法、多流管（ mtt ）方法以及基於勢渦理論的渦方法（ vtth ）計算直葉擺線式水輪機的水動力性能。 -
( 1 ) the cfd model for the pulse combustion spray drying process. the computational fluid dynamics ( cfd ) based on the two - phase flow theory was employed in this paper, which used the standard k - e model and the particle trajectory model to simulate the gas - particle flow in the drying chamber. the momentum, heat and mass transfer regarding both gaseous and particulate phases during the spray drying inside the drying chamber was also revealed
為解決這一難題，本文利用氣體一顆粒兩相流理論和計算流體力學（ cfd ）技術，建立了更符合實際噴霧乾燥過程的數學模型即噴霧乾燥的cfd模型，並進行了脈動燃燒噴霧乾燥過程模擬，其主要內容如下： （ 1 ）建立了脈動燃燒噴霧乾燥的cfd模型該數學模型建立在氣體一顆粒兩相流基礎之上，用標準k -模型預測乾燥室內的氣體湍流運動過程，顆粒軌道模型追蹤乾燥室內顆粒群的運動軌跡，熱質傳遞模型描述空氣和液滴的熱質傳遞過程。 -
The energy eigenvalue, eigenfunction, matrix elements of coordinate and momentum operators in energy representation, and evolution operator for a two - dimentional coupled oscillator are presented by using the general linear quantum transformation theory
摘要運用廣義線性量子變換理論，給出一類二維耦合量子諧振子的能量本徵值、本徵函數、坐標和動量算符在能量表象中的矩陣元及演化算符。 -
Historically, angular momentum is what clued in physicists to the quantum - gravitational implications of string theory
歷史上，角動量正是讓物理學家注意到弦論中含有量子重力的關鍵。 -
Based on the researches of shell and co - axial rotors, the aerodynamic characteristics of the helicopter in hovering are studied by means of the combination of momentum theory and blade element theory in this paper. an aerodynamic mathematical modeling has been established
在以上研究的基礎上根據碟形無人直升機的設計要求，選擇了該直升機的結構型式和總體參數，並對其性能進行了計算。 -
Based on momentum theory and shock wave gas dynamic theory, jet equivalent body idea and bow sharp wave mathematic formula is brought forward
利用動量定理和激波理論分析方法，提出了噴流等效體的概念，推導了等效體弓形激波方程。
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