two-phase structure 中文意思是什麼
two-phase structure
解釋
二相構造-
The conclusions are reported as following : the structure change of triuranium octaoxide ( u3o8 ) was studied by xrd at ambient atmosphere at temperature form 25 to 850. there are two kind of phases of u3o8 in the temperature range studied, and the transformation temperature is about 300. the low temperature phase is orthorhombic with space group amm2, and it change to another phase with better symmetry around 300
主要的研究結果如下：對u _ 3o _ 8的相變和結構隨溫度的變化進行的分析研究結果顯示：在300附近u _ 3o _ 8發生了相變，由底心正交結構（空間群為amm2 ）的低溫相轉變為簡單六方結構（空間群為p - 62m ）的高溫相。 -
While transition phase of economic reform, the gap of the richness and poorness, the mental imbalance of social groups are the epoch characteristic of insurance industry, the literae spirit facing the vicissitudes of social structure, fierce competition come from foreign industry company etc, all these are production relationship ' s changes resulted from the changes of productivity. we must look for new solutions that matches these two aspects. of course, this is a imminence question that faces with a series of insurance company like ping ' an
我國保險業所處的歷史時代，在改革的過度階段，貧富差距有所擴大，社會群體間的心理平衡，原有的人文精神在面對社會結構的現代變遷與人性結構的現代轉換，保險業所具有的特殊行業特點、面臨國際實力強大的保險業同行的競爭等，這些都是基於新的生產力基礎上的生產關系的變化，這時需要從生產力和生產關系相互匹配的角度去分析該問題並提出解決途徑。 -
The three - order modulator has a 2 - 1 cascaded structure and 1 - bit quantizer at the end of each stage, the modulator is implemented with fully differential switched - capacitor circuits. and then, the discussion will begin by exploring the design of various circuit blocks in the modulator in more detail, i. e., ota, switched - capacitor integrator, quantizer, two - phase non - overlapping clock signal, etc., at the same time, these circuits will be simulated in spectre and hspice. at last, the whole cascaded modulator will do behavioral level simulation by matlab soft and simulink toolbox
本論文中，首先介紹模數轉換器的各種參數的意義，以及一階sigma - delta調制器和高階sigma - delta調制器的原理;給出解決高階單環sigma - delta調制器不穩定性的方案，引入級聯結構調制器，特別針對級聯結構調制器中的失配和開關電容積分器的非理想特性進行詳細的討論;本設計的sigma - delta調制器採用2 - 1級聯結構和一位量化器，調制器採用全差分開關電容電路實現;同時對整個調制器的各個模塊進行了電路設計，包括跨導放大器、開關電容積分器、量化器、兩相非交疊時鐘等，並利用hspice和spectre模擬工具對這些電路進行模擬測試;最後，利用matlab軟體和simulink工具對整個級聯調制器進行行為級模擬。 -
On the basis of drawing lessons from the existing research results both at home and abroad, this paper observes the change law of the two financial indexes of nroa and croa from 1997 to 2001, studies the relations between the locations of listed companies and the m & a performance, between the structure of equity of listed companies and the m & a performance, between the industry nature of the listed companies and the m & a performance, between the type of m & a and the m & a performance, and then draws several conclusions that m & a performance is unsatisfactory on the whole, m & a performance of listed companies in eastern china is superior to that of the counterpart in middle or western china, m & a performance of listed companies that the country or the other corporations hold the most share of the listed companies is unsatisfactory on the whole, the growing or mature listed companies can achieve best m & a performance when they implement the m & a horizontally while the listed companies in declining phase may perform the conglomerate m & a the best
在借鑒國內外已有的研究成果的基礎上，本文考察了並購上市公司從1997年到2001年五年時間內凈資產收益率和主營利潤率兩項財務指標的變化規律，研究了並購公司所在的區域與並購績效、並購公司的股權結構與並購績效、並購公司的產業性質與並購績效、並購類型與並購績效等方面的關系，得出了若干結論： 1 、並購績效從總體上來說是不理想的； 2 、東部上市公司的並購績效要優于中部和西部上市公司的並購績效； 3 、國家股或法人股是第一大股東的上市公司的並購績效不理想； 4 、處于成長性產業和成熟性產業的上市公司發生橫向並購績效最好，處于衰退性產業的上市公司發生混合併購績效最好。 -
On the detailed analysis of the 2nd chapter, and curving the difference of conditions and developing phase of rbc, i find the duple dynamics and duple mechanism of chinese rbc, then have two phasical model : base model and structure shifting model. after a delicate depicture of their different characters and developing mechanism, i found three endogentic variables controlling rbc development : resource, location and dimensions
為此，本文通過對上一部分資源型城市發展特徵研究成果的詳細分析，並對比國內外資源型城市演化過程和條件的差異，提出了中國資源型城市發展的雙重動力和雙重機制，並在此基礎上概括了中國資源型城市發展演化的兩種階段性模式：基地模式和轉型模式。 -
The compatibility and harmony among workability, mechanical grade and durability are optimized, with the ground of adjusting composition and dosage of fd - 1 ; after analyzing anti - freezing damage mechanism, it is concluded that temperature is main factor, which affects structure and property of concrete. after two processes of temperature - elevation of hydration heat and temperature - descent of cold - environment, there is original damage in concrete and its existence leads to temperature fields, as results in temperature damage on transition phase > aggregate and cement mortar of concrete
通過對負溫混凝土早期防凍分析研究認為，環境溫度對混凝土的結構形成及其性能的影響十分突出，水泥水化溫升和環境散熱降溫兩個過程導致混凝土結構內部產生不均勻溫度場，對過渡相、水泥砂漿以及骨料都能產生不同程度的溫度損傷，產生內部溫差應力裂紋，初始損傷也是不可避免的。 -
In the framework of the transverse ising model ( tim ), landau phase transition theory and the electrostatic field theory, we study the physical properties of the ferroelectric thin film, bilayer, sandwich structure, multilayer with a non - polarization slab and a two - dimension polar lattice model with polar defects. the main work and results are as follows : first, the long - range interaction in ferroelectric material is sometimes neglected in the previous studies. we introduce the long - range interaction in the framework of the tim and the landau theory
本文在橫場伊辛模型、朗道相變理論以及靜電場等理論的框架內，對鐵電薄膜、鐵電雙層膜、鐵電三明治結構以及含有雜質層的鐵電多層膜和含有偶極缺陷的二維偶極點陣系統等多層鐵電系統的相變、熱電、介電、電滯行為等物理性質進行了深入研究。 -
The development of the theories of marketing tactics can be divided into two periods. during the product guiding time, the theory model of marketing tactics was still in the phase of probing and no complete structure of it had been advanced
營銷策略理論的發展大致可以分為兩個階段，在產品導向時代和后產品導向時代營銷策略的理論模式尚處于摸索階段，並沒有提出完整的體系構架。 -
It is a reliable instrument for the measurement of the coherent structure in turbulence. an improved 2 - d ptv was developed based on previous research experiences, which can be used to measure the trajectories of particles motion. for the experimental study on the particle motion in the dilute solid - liquid two - phase flow, especially for the motion characteristics and dynamic characteristics of coarse particles in water, this kind of system was proved to have great advantages
利用該系統可獲取大量的統計樣本並進行計算機快速分析，為明槽紊流相干結構的試驗研究提供了一種嶄新的測量手段；在前人工作的基礎上，開發了一種能夠測量水流中顆粒運動軌跡的ptv系統，該系統具有可靠的精度，能同步測量全剖面的顆粒瞬時運動信息，為顆粒運動特性及動力學特性的試驗研究提供了強有力的手段。 -
At last, three - dimensional mathematical model of gas - particle two phase turbulence was established, and it was adopted to study the gas - particle two phase rectangular jet as well. the distribution of the time - averaged velocity and turbulence intensity was studied, and some of the simulation results were compared with the experimental results ; the coherent structure of flow field was described in the three direction, the evolution and motion of the eddies was discussed too ; the dispersion of fine particles in the three dimensional space was also investigated
全面地分析了矩形射流氣相時均流場的速度、湍流強度的空間分佈規律，並就部分數值模擬結果與實驗結果進行了對比研究;描述分析了氣相流場湍流擬序結構，對流向、橫向和展向三個方向旋渦的空間結構特點進行分析研究，並分析了流向渦隨時間變化的發展、運動規律。 -
A novel high - power pollution - free smps is presented in this paper, which accomplishes simultaneously the goal of soft - switching pwm, the input / output isolation, the output voltage regulation and three - phase pfc with a single - stage power processor and simple pseudo - phase - shift control circuit. therefore, compared with the normal two - stage system, the single - stage power supply has simpler structure, lower cost, higher efficiency and easier to control. the proposed smps can be used in the three - phase power system, and can output high power over kw - order and input / output ( i / o ) isolation dc power supply
本文提出的新型無污染大功率開關電源正是採用三相三線制輸入電源，利用單級偽相移零電壓零電流開關脈寬調制（ pps - zvzcs - pwm ）全橋變換器完，成功率因數校正（ pfc ）和輸出電壓快速調節、隔離的雙重功能，並且該變換器開關管在零電壓或零電流下通斷，顯著的減小了emi 。 -
Ordered structure in large and light particle - liquid two phase flows
自密實高強混凝土框架結構的抗震性能試驗研究 -
Through theoretic reckoning and simulating analyzing, several control strategies for shunt apf were compared and chose ip - iq arithmetic of the instantaneous reactive power theory control strategy as the right scheme to produce the instructing current. based on it, some new control arithmetic was subjoined to suppress the resonance in system and balance the dc side capacitor voltage. two topologies of main circuit were compared and chose the three - phase voltage - source converter with a split - capacitor as its main circuit structure
通過理論計算和模擬分析，比較了並聯型apf的幾種控制策略的優點和缺點，從中選擇瞬時無功理論控制策略i _ p - i _ q計算方式為指令電流產生的演算法，並在此基礎上增加了抑制系統諧振和平衡直流側電容電壓的控制；比較了並聯型apf主電路的兩種常見形式，從中選擇了三相電壓型變流器的主電路形式；算出適合該apf的直流側電容和出線電感的參數；設計出能有效消除apf產生的高次諧波的高通濾波器。 -
And then simulations of gas - particle two phase plane wake and gas - particle two phase plane jet were carried out by using this model. after numerical simulations of the two flow fields were finished, series of analytical work was done. first, the distribution of time - averaged velocity, turbulence intensity was analyzed, and some of the simulation results were compared with those of the experiments ; the coherent structure of vortices in the near wall region of the plane wake flow were studied by describing the evolution of the eddy structures, including the forming, developing and shedding from the wall of the vortices in the near wall region ; the coherent structure of vortices in the whole field was also studied, such as the forming, developing, moving, pairing and merging of the eddies etc.
在對上述兩種流動形態的二維大渦模擬研究中，首先全面地分析了氣相時均流場的速度、湍流強度的分佈規律以及氣相速度的脈動規律等並就部分數值模擬結果與實驗結果進行了對比研究；分析了平面尾跡流場中近壁處旋渦擬序結構，全面和逼真地反映了近壁處旋渦的生成、發展和脫落的規律；描述分析了平面尾跡流和平面射流的全場流動旋渦擬序結構，從整個流場的角度反映旋渦的生成、發展、運動以及旋渦之間相互配對、合併的作用規律等。 -
For dilute solid - liquid two - phase flow, the mechanism of particle motion driven by fluid is the main subject, especially the particle motion in the near wall region. the bursting phenomenon and coherent structure of turbulence play an important role on the motion of particles in the near wall region
明槽紊流近壁區的顆粒運動與紊動猝發現象及紊流相干結構有著密切的關系，開展近壁區顆粒與紊流相互作用的機理研究對于流體力學和泥沙運動力學都有著重要的理論意義和實際價值。 -
According to the working condition of electronic element, a testing system established to test the temperature variety of the electronic element surface on several kinds of radiator which designed on different structure under different working condition. on the basic of the experimental results, integrated theoretical model established which include three part : heat simulation copper block, two - phase closed thermosyphon and heat sink
根據電子器件的運行工況，建立了散熱器性能測試系統，並對所設計的不同型式的熱管型電子器件散熱器進行了在不同工況下的性能實驗，比較了在熱流密度、風速、風溫等實驗工況發生改變的情況下各型式的熱管型電子器件散熱器中電子器件表面溫度的變化規律。 -
Based on electrical capacitance tomography ( ect ) system of 8 electrodes as the main object, this paper discusses the measuring of the oil and water two - phase flow, its structure and principle for work, and the construction of finite element model, so as to make field plotting
本文以8電極電容層析成像系統為對象，研究了油水兩相流的檢測問題。介紹了電容層析成像系統的結構和工作原理，建立了系統的有限元模型，並以此為基礎對場域進行剖分，採用了三角形單元剖分和四邊形單元剖分兩種剖分形式。 -
Firstly, a two - stage structure for the ota is presented after comprehensive considerations on characteristics like open - loop gain, unity - gain bandwidth, phase margin and settling time. then the input and output topologies have been decided by comparing different structure available for this purpose
首先，通過對ota開環增益、單位增益帶寬、相位裕度和建立時間等性能指標的分析，並對比了幾種典型運放結構，設計開發了一種cmos全差分共源共柵兩級運算放大器框架。 -
This thesis firstly makes a detailed analysis and expatiation for several conventional charge pump circuits, and then proposes a new two - phase charge pump, and analyzes its structure and operational principle. and the simulations of several charge pump circuits including the new two - phase charge pump circuit are compared, the result indicates that the new charge pump overcomes the shortcomings of the conventional circuits and has the better performance
本文首先對幾種傳統的電荷泵電路進行了系統的闡述和分析，在此基礎上提出了一種新型的二相位電荷泵電路，對該電路的結構設計和工作原理進行了深入的理論分析，並對包括新型電路在內的幾種電荷泵電路模擬比較，證實了新型電荷泵電路能克服傳統電路的不足，具有更高的性能。 -
Electrical capacitance tomography ( ect ) is a process tomography ( pt ) technique based on capacitance sensor. ect has the advantage of being non - radiate, non - intrusive, fast in response, simple in structure and low in cost, so it is a new way to measure two - phase flow parameters. flow pattern identification is a important question in the measurement of two - phase parameters which can be resolved with ect technology, which is a good potential, in process of groping approach
電容層析成像（ ect ）技術是基於電容敏感機理的過程成像（ pt ）技術，具有非輻射、非侵入、響應速度快、結構簡單、成本低等優點，它為解決兩相流參數檢測問題提供了新的途徑，流型辨識一直是兩相流參數檢測中的重點之一，應用電容層析成像技術進行流型辨識是目前正在探索的具有良好發展前景的方法。
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