in phase element 中文意思是什麼
in phase element
解釋
同相元件-
This article discussed ar modeling method, capon method, music method and mn method four kinds of high resolution algorithms principle and has separately made the computer simulation in the ideal situation to the above four algorithms. through the comparison, the beam width of high resolution algorithm is much narrower than conventional beamforming method. then unifies the actual utilization, discussed the influence of time delay unbalance, time domain sampling, plane wave supposition and array element with scope and phase not identically to the beamforming and made the computer simulation
本文首先討論了ar模型法、 capon法、 music法和mn法四種高解析度演算法的原理，在理想的情況下分別對上述四種演算法作了計算機模擬，通過比較，高解析度演算法的束寬比常規波束形成法窄得多;然後結合實際運用時的情況，重點探討了延時失配、時域抽樣、平面波假設和基陣的幅相不一致對波束形成的影響並做了計算機模擬。 -
Secondly, this paper illustrated the nonlinear phase dynamic theory of the aia array and the application of it to power - combining and beam - scaning technique. according to these theories, the coupling parameter of nearest neighbors was found by experiment, then the two - element and three - element aia array were designed, and the result of measurement was in agree with that of the nonlinear phase dynamic theory, and the beam - scaning of two - element array was realized by tuning the free oscillation frequency of the elements
其次，本文討論了有源集成天線陣列的非線性相位動態理論以及它在功率合成和波束掃描方面的應用，包括同步工作條件、穩定條件和相位動態方程等，通過實驗確定了陣列中相鄰單元間耦合參數，並將之運用於有源集成天線二元陣和三元陣的設計，實驗結果與理論結果吻合較好。 -
On the bases of the galaxy evolution theory, we use the therotical chemical evolution model of three zone ( such as halo, thick disk and thin isk ) and multi - phase ( diffuse gas, molecular clouds, stars of both low and high mass, the remnants ). by comparing with the observational constraints, such assurface densities, age - metallicity relation, g - dwarf metallicity distribution in the solar neighbourhood and the correlation between [ a / fe ] and [ fe / h ], supernovae rates, infall rates. the rationality of the model is verified. based on the theory model, we calculate the abundance of neutron capture element
本文正是在銀河系化學演化的基礎上，利用銀河系的三成分（ threezone ） （即暈、厚盤和薄盤）多相（ multi - phase ） （氣體，分子云，大、小質量恆星以及剩餘物質）的化學演化的理論模型，通過與觀測約束（質量面密度、場星的年齡-金屬豐度關系、太陽附近g矮星金屬含量分佈函數、三成份的特徵量、元素的星系化學演化、超新星的爆炸率、內落速率等）的比較，來檢驗模型的合理性。 -
Abstract : the far - field spot characteristics of laser converted by random phase plate are analyzed theoretically, including the shape, size, rotational symmetry and diffractive efficiency of the spots, as well as the distribution of subsidiary spot. by comparing the influence of phase element shape ( triangular, square and hexagonal ) on the characteristics, we found that the random phase plate with hexagonal array structure is more suitable for the beam smoothing in laser fusion
文摘:從理論上分析了激光經隨機位相板變換后在遠場的光斑特性（包括光斑的形狀、大小、旋轉對稱性、衍射效率以及旁瓣分佈） ，通過比較三種形狀位相元（等邊三角形、正方形和正六邊形）的遠場光斑特性，得知正六邊形位相元結構的隨機位相板更適合於激光聚變中的束勻化。 -
On the basis of complet ' : ly analyses about dual - m ( ) de phase shiftcrs, the finite - element formulation derives the variational principle for non - se1fadjoint electromagnetic problems which is microwave propagaticn in a aniso1ropic media loaded waveguide. then, the variatonal problem is approximated by a matrix eigenvalue problem
在此基礎上，詳細討論了利用有限元分析法這一強有力的工具來分析波導中填充各向異性介質的問題，導出了基於變分原理的泛函和有限元方程。 -
This experiment focuses on the characteristic of green refrigerant r600a in a small parallel flow aluminum closed two - phase thermosiphon and measures all the quantity of injected mass and heat dissipation, the speed of air and the difference of temperature of the electronic element ( cpu simulate chip ) surface and environment
處理速度達到g數量級，功率消耗更達幾十瓦。如何解決cpu散熱問題，成為關注的焦點。本實驗首次研究了綠色環保工質r600a在一種鋁質重力熱管中的工作特性。 -
In this thesis, previous research works on mg - based hydrogen storage materials have been reviewed. on this basis, the following works have been carried out : firstly, the part of ni in mg2ni alloys was partial substituted by the transition element cr. the effect of element cr and mechanical alloying on the phase structure and hydrogen storage properties of mg2nii. xcrx ( x = 0, 0
本文在對國內外鎂基儲氫材料的研究進展進行了文獻綜述的基礎上，著重對以下兩方面內容進行了研究： （ 1 ）用過渡族元素cr對mg _ 2ni合金進行了元素替換，研究了mg - ni - cr三元合金的晶體結構、微觀特徵以及吸氫動力學性能。 -
The research aims at the demonstration and the mend of the design on the new purifier and presents a calculation method for solving the two - phase flow in fluid machine by the finite element method. after analyzing the two - phase flow in the new purifier by means of the continuum model, poisson equation, navier - stokes equation and continuous equation are derived and solved by using the finite element method. the solution on pressure, velocity and particle concentration simulates the departure well between oil and water, which proves the accuracy of the design on the new purifier
本文採用兩相流連續介質模型，由兩相分離流動理論得到控制方程，採用chorin的直接速度-壓力mac法的思路，對新型油水分離裝置內油水兩相流動作了細致的分析，同時首次把科氏慣性力引入兩相流模型中，進行分析和計算，將研究擴展到三維，並用有限元法分別解poisson方程、 n - s方程、連續方程的方法，對流場內壓力場、速度場、濃度場進行了分析和計算，較好地模擬了新型油水分離裝置內油水分離的現象，證明了設計方案的正確性。 -
On account of qpm can take advantage of the largest element of x tensor, and any interaction with transparency range of the material can be noncritically phase matched without walk - off angle. therefore, the conversion efficiency in longer crystal may be improved
由於準相位匹配可利用非線性光學晶體最大的二階極化張量元，在晶體的整個通光范圍內均可實現非臨界相位匹配，在較長的晶體上可望實現較高的變頻效率。 -
At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength
由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。 -
In cuo + sio2 + tio2 / al reaction system, the element ti which is replaced in the reaction makes the microstructure of composite thin and the matrix strong. the mechanical properties of the composites fabricated by this reaction system are much finer than the ones fabricated by cuo + sio2 / al and cuo + tio2 / al reaction system. in cuo + tio2 / al reaction system, the wild phase al3ti is very large and it is disadvantageous to the improvement of composites " properties
在四種原位反應體系中， cuo + sio _ 2 + tio _ 2 al原位反應過程中被置換出來的金屬元素ti細化了基體組織，並起到了固溶強化的作用，所制備的復合材料的微觀組織與機械性能明顯優于cuo + sio _ 2 al與cuo + tio _ 2 al原位反應體系所制備的復合材料。 -
Considering slpmu - 025a produced by japan shinko motor company ltd. as our study project, this thesis presents a study on two - phase hybrid lsm, the study objects and some conclusions presented in the thesis are : ( l ) the 3d model of slpmu - 025a is formed by software maxwell 3d. then, the 3d magnetic field of the motor is analyzed by fem ( fenite element method ) analysis. here, the analysis of the magnetic field is in focus on the region of tooth - layer
本文以日本神鋼電機株式會社生產的slpmu - 025a為研究樣機，對二相混合式直線步進電動機進行了研究，內容包括： （ 1 ）用maxwell3d軟體建立了slpmu - 025a的三維模型，通過有限元分析計算了電機的三維磁場，重點分析了電機齒層區域的磁場； （ 2 ）應用maxwell3d的后處理計算得到了電機的靜推力? ?位移特性，並與實驗進行了比較； （ 3 ）利用matlab中的simulink建立了動態模擬模塊，模擬了電機的部分動態特性，並用實驗進行了驗證。 -
To receive energy transmitted in a steered beam by any of the three scanning methods, the applied frequency, time, or phase relationships are maintained at each element, which has the effect of making the radar sensitive to energy from the direction of transmission
仍然以每個單元接收通過三種掃描方法? ?頻率，時間，相位關系控制波束發射的能量，這使雷達對發射方向的能量敏感。 -
Compared with digital integrator composed of reversible counter, the trapezoidal formula digital integrator is utilized in integrating element of phase - lock controller, it has advantages in simple realization, fast transient response, wide lock range, insensitivity to disturbance
對鎖相控制的積分環節採用了梯形公式數字積分器，與可逆計數器構成的數字積分器相比，梯形公式數字積分器具有實現簡單、動態響應快、入鎖范圍大、抗擾動能力強等優點。 -
A makeup of the multi - element linear transducer array system and experimental setup were described in detail, besides the application of phase - controlled algorithm in multi - element transducer array. the transducer array also can produce conventional ultrasound images
文中詳細討論了多元線性陣列探測器系統的組成和實現方法以及實驗裝置的組成，相控聚焦的成像演算法在多元線性陣列探測器中的應用。 -
In phase element
同相元件 -
The vertical one is divided into three phases : low self - direction, intermediate self - direction and high self - direction. the horizontal one comprises six elements : self analyzing, learning objectives definition, learning contents definition, learning environments establishment, learning strategies & methods selection and application, and self reflection and evaluation. in hope of giving some advice on how to improve college students " self - directed lea rning capacities and on how to help students to learn by self - direction in higher education, the author finally elaborates a phase - element table, which expresses the characterizations of college students " self - directed learning behaviors and the relative changes of teachers " role
在此基礎上，縱向從「低度自我導向、中度自我導向、高度自我導向」三個階段，橫向從「自我特徵分析，學習目標制定，學習內容選擇與確定，學習環境選擇與創設，學習策略與方法選擇與應用，監控、反思與自我評價」六個要素對學生自我導向學習行為變化及教師策略進行描述、分析和總結，最終以「階段?要素」表的形式揭示在大學教學中，學生自我導向學習行為及教師策略變化特點，希望對如何提高大學生自我導向學習能力以及在高校教學中如何促進學生進行自我導向學習有所啟示。 -
The accurately controlled signal source generates sinusoidal elastic wave accurately controlled in frequency and stable in phase to " illustrate " underground media. time signal stacker receive signal by stacking and doing fft to measure the transfer function of media. " sompi " cepstrum method retrieve group velocity travel times and decayed factors of wave element from observational data of transfer function in a limited frequency window
精密可控震源用於產生頻率精確相位穩定的正弦彈性波以照射地層內部，信號疊加器通過對接收信號進行疊加和進行傅立葉變換的方式實現對介質傳遞函數的精密測量， 「存否」倒譜方法能夠根據一段窄帶頻域傳遞函數數據獲得時域上各個波成分的群速度傳播時間和介質衰減因子。 -
The electromagnetic energy received at a point in space from two or more closely spaced radiating elements is a maximum when the energy from each radiating element arrives at the point in phase
在空間一點受到兩個或更多輻射源照射時，各個輻射源波束到達該點時相位一致則該點接收到的電磁能量最強。 -
All elements are radiating in phase, and the resultant wave front is perpendicular to the axis of the element array
所有單元發射相位一致，合成的波前垂直於單元陣列軸線。
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