相位轉變 的英文怎麼說

中文拼音 [xiāngwèizhuǎnbiàn]
相位轉變 英文
phase transition
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 轉 : 轉構詞成分。
  • 相位 : phase position; phase
  • 轉變 : change; convert; transform; turn
  1. As a result, the electromagnetic field intensity is changed accordingly and fluctuating current in the damper coil is created. damping force is mostly produced because of the phase difference between fluctuating current and displacement of rotor. the formulas of fluctuating current and damping coefficient are deduced theoretically, and the calculated results are consistent with the experimental results

    通過分析發現電磁阻尼器線圈內由於轉子渦動時變化的磁場而產生的波動電流與轉子位移間的相位差是產生阻尼的主要原因，推導了波動電流、阻尼系數的計算公式，並通過實驗展示了被動式電磁阻尼器的阻尼效應。
  2. For the anticounterfeiting of printings ( such as certificate ), the existent many ways ( such as rainbow holograms ) are not available as the need for special use : anti - distortion and anti - copy. basing in the double - random - phase transform, this article puts forward a new way that two - dimensional bar code is used as anticounterfeiting label with anti - printing ? scanning and anti - damage properties. the major job are : ( 1 ). basing in the ascii codes, numerals and alphabets are encoded and subsequently transformed into two - value bar code matrix figure. later, using amplitude - based double - random - phase transform, the enciphered gray scale figure is formed. by computer simulation ( 4f system ) and printing as well as scanning ( 20 times ), we get the result that the gray scale figure with little miscoding rate ( 0. 0026 ) by “ matrix expanding way ”

    本文主要開展了以下三項研究工作: （ 1 ） .用自定義編碼方案，將數字和字母（ ascii碼）轉換成二值條碼圖;對該圖形進行振幅型雙隨機相位加密變換，得到原信息的加密灰度圖;通過4f光學系統計算機模擬和列印-掃描實驗，證明本文提出的「矩陣擴展法」灰度圖具有較小的誤碼率，對於20次列印-掃描實驗，誤碼率不大於0 . 0026 。
  3. Monitor apparatus can measure valid value of three phase voltage and current, power factor, three phase disequilibrium, instant flecker of short time and harmonic without twenty, degree and harmonic distortion total. the paper are laid on the following. ( 1 ) master plan and function of circuit, ( 2 ) hardware design including circuit and principle of a / d conversion, phase lock, liquid crystal display and keystroke and so on, ( 3 ) design of system software including digital filtering, fft, a / d conversion and monitor interface of pc, ( 4 ) system test

    監測儀能夠完成包括三相電壓、三相電流的有效值、功率因數、三相不平衡、電壓短期閃變、以及20次內的諧波、諧波相位、諧波失真總量等的測量。論文重點介紹了以下幾部分： （ 1 ）電路的總體設計和功能； （ 2 ）硬體設計，包括a d轉換、鎖相環、液晶顯示和按鍵輸入等原理和電路。 （ 3 ）系統軟體設計，包括a d轉換、 fft 、數字濾波等程序的原理和演算法以及上位機監控界面的設計； （ 4 ）系統測試。
  4. The addition formula of spherical harmonics function of degree n and order 1 is derived using the relations between coordinate varieties after coordinate rotating and the property of the associated legendre polynomial. the relations among the magnetic vector potential, the modified magnetic vector potential and the second - order vector potential ( sovp ) are shown going forward one by one. it is explained that the solutions of electromagnetic fields in different coordinate systems can be transformed and an example having analytical solution is given

    利用坐標旋轉后球坐標變量間的關系和連帶勒讓德多項式的性質推導得到了n次1階球諧函數的加法公式；以遞進的方式說明磁矢量位、修正磁矢量位與二階矢量位的關系，寫出了引入二階矢量位的過程；以時諧場矢量邊值問題為例，闡明了不同坐標系下電磁場解的相互轉化原理，給出了一個解析解的轉化例子；在球坐標下，引入了較球矢量波函數更普遍的兩類矢量函數，給出了其在球面上的正交關系。
  5. With the development of nulear power industry, more and more attention has been given to the spent nulear fuel reprocessing. purex process will remain predominant in the foreseenable future. because the valence of np, one kind of transuranium elements, is easy to interchange, the route of np in purex process is difficult to be controled. a lot of work has been done on the control of neptunium way in the world

    隨著核電的發展，乏燃料后處理引起了人們的廣泛關注。 purex流程在乏燃料后處理中一直佔有主導地位。由於超鈾元素np的化學價態容易相互轉變，使purex流程中np的走向不易控制而傾于分散。
  6. The former was related to mn doping, both of p - carries supplied by la3 + or oxygen hole and n - carries induced by changing mn4 + into mn3 + can be locally displaced and simultaneously response with external electric field., furthermore due to the overlaps between positive and negative carries. the latter was due to the phase transformation between orthorhombic and cubic, which was in fact the curie point

    前者為la ~ （ 3 + ）和氧空位等產生的p型載流子和mn離子變價引入的n型載流子在外電場下發生局域重排產生的載流子極化，且由於正負載流子的迭加效應所致，該介電峰與mn離子的摻入相關；後者為體系出現相應的正交與立方結構的轉變所致，也即居里點。
  7. The lpa - rich phase and the up - rich phase became co - continuous at the first transition point and the paniculate structure came to dominate after the second transition point with continuous up - rich phase vanishing

    在第一個轉變點之後，固化試樣形成富lpa相和富upr相交互連續的結構，而在第二個轉變點之後，連續的upr相消失，固化試樣中顆粒結構佔主導地位。
  8. The algorithm of svpwm that is adopted by the system implements motor speed - regulation by control of magnitude and phase of motor flux. it can generate less harmonics in the output current of power inverter and less losses of ac motor, reduce pulsant component in output torque and raise availability of dc supply voltage

    系統採用的svpwm演算法通過對空間磁鏈矢量幅值和相位的控制來調節電機轉速，減少了逆變器輸出電流的諧波，降低了脈動轉矩，提高了電壓的利用率。
  9. Multiferroelectric magnetoelectri materials have a spontaneous polarization that can be reoriented by an applied electric field, a spontaneous magnetization that can be reoriented by an applied magnetic field. these materials have been exploited as transducer, waveguides, switches, phase inverters, modulators, etc. which also find a lot of technological applications in radioelectronics, optoelectronics, microwave electronics in instrumentation

    這類材料同時具有鐵電和鐵磁材料的性能可以應用到傳感器，波導器件，轉換器，相位倒相器，變頻器，調節器等，在無線電電子學，光電子學，微波電子學等領域的發展具有重要意義。
  10. However, the peak damage ~ 320dpa occurs at a depth of about 20nm in 1 1017 cm - 2ni + - implanted al2o3, which leads to amorphization

    然而相同注量的ni ~ +注入al _ 2o _ 3在約20nm位置產生損傷最大值320dpa ，樣品明顯發生非晶化轉變。
  11. Through analyzing and researching the problem of variable frequency to working frequency of high - power electromotor in theory, the key of conversion is pointed out in the paper. on the basis of analyzing equivalent circuit diagram and vector - diagram of induction - motor, the phase of working frequency power whether or not consistent with the output phase of variable frequency power at the moment of conversion is the key to decide whether the conversion is successfully

    本論文針對大功率電機變頻轉工頻轉換存在的問題在理論上作深入細致的研究，根據感應電動機的等效電路和相量圖分析，指出大功率電機變頻轉工頻能否成功，關鍵在於變頻轉工頻瞬時，工頻電源和變頻輸出電源是否相位一致。
  12. First, resistance to geometrical distortion was obtained by using moment normalization ; second, we focus on the phase of fourier - mellin transform. before detecting watermark, synchronization could be retrieved by using the phase information. to eliminate the influence of pixel value distortion generated during print / scan process, a dft - based robust watermark algorithm was designed, which could successfully detect watermark from a severe distorted image

    另一種思路是根據圖像經過旋轉、縮放、平移后，其傅立葉?梅林變換域只有相位受到影響的特點，從其相位中提取幾何失真信息，然後再進行相應的失真補償，從而消除幾何失真的影響；對于列印掃描過程產生的像素值失真，本文也提出了一種基於dft的魯棒性演算法，能在較嚴重的圖像失真情況下，成功檢測水印。
  13. At the aspect of hardware design, it adopts pulse distributor and the technology of single polar voltage drive to accomplish the function of controlling and driving stepmotor ; it adopts the technology of pulse width modulation and cmos h - bridge drive to accomplish the function of controlling and driving dc servomotor ; it adopts d / a convertor to accomplish the function of controlling ac transducer ; it adopts the technology of digital phase detection to accomplish the function of detecting the feedback position signal of induction phase shifter ; it adopts dsp ’ s capture cell to accomplish the function of detecting the feedback position signal of photoelectric coder

    硬體方面，採用脈沖分配器和單極性電壓驅動技術實現了步進電機的控制和驅動功能;採用脈寬調制技術和cmos互補h橋驅動技術實現了直流伺服電機的控制和驅動功能;採用d / a轉換器實現了交流變頻器的控制功能;採用數字化相位檢測技術實現了感應移相器位置反饋信號的檢測功能;採用dsp的捕獲單元實現了光電編碼器位置反饋信號的檢測功能。
  14. 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。
  15. During the infrared failure circuit detection system is diagnosing the electronic equipment, because the time and the place are different between the infrared thermal imaging device is diagnosing the standard electric circuit board and the infrared thermal imaging device is diagnosing the failure electric circuit board, the position of their infrared thermal image will take place the relative changing ( for example translation or revolves )

    在紅外電路故障診斷系統對電子設備診斷時，由於紅外熱像儀對標準電路板進行檢測的時間與地點和紅外熱像儀對故障電路板進行檢測的時間與地點的不同，導致它們的紅外熱像圖的位置會發生相對改變（如平移或旋轉） 。
  16. There is a relationship between catenin phosphorylation, translocation and tumoregenesis, further more, in this relationship, cell signaling cascade and mitogen and their receptors are involved. base on these evidences, people are trying to disturb the key molecules in this signaling cascade for anti - tumor purpose

    表皮生長因子（ egf ）能使p120 ~ （ ctn ）酪氨酸磷酸化，磷酸化使bel - 7404細胞的粘附能力降低而遷移行為增強； p120 ~ （ ctn ）在細胞內的分佈出現明顯的核內轉位， -連環蛋白也出現相似的變化。
  17. The main working procedure of the fiber - optic sensor is : the sensing element detects the acceleration signal, this signal modulates the phase of the wave, and the phase change is corresponding to the acceleration signal

    該光纖加速度計的工作過程為:敏感元件感受外界的加速度信號，並把它轉化成馬赫-增德爾干涉儀測量臂的拉伸或壓縮，從而引起測量臂中的光波相位變化，相位變化量即代表被測加速度值。
  18. A device that converts a property of an input signal, such as frequency or phase, into an amplitude variation, depending on how the signal differs from a standard or reference signal

    鑒別器，鑒頻器一種將輸入信號的某一特徵，如頻率或相位轉變為幅度變化裝置，其變化大小因信號與標準或參考信號的不同程度而異
  19. The stator of aceg is connected to the grid and the three symmetrical excitation windings in the rotor are fed by converter. the magnitude and frequency and phase and phase sequence of excitation voltage can be controlled, so the magnitude and position of excitation mmf as well as the speed of rotor can be controlled. therefore, acegs have superior performances by contrast with conventional synchronous generators and induction generators, such as upstanding stability, power generation of variable speed constant frequency ( vscf ), adjusting active power and reactive power independently, and absorbing lag reactive power deeply

    交流勵磁發電機的基本結構與繞線式異步電機相同，其定子側接電網，轉子上採用三相對稱分佈的勵磁繞組，由變頻器提供對稱交流電勵磁，且勵磁電壓的幅值大小、頻率、相位、相序都可根據要求加以控制，從而可以控制發電機勵磁磁場大小、相對于轉子的位置和電機的轉速，使得交流勵磁發電機具有良好的穩定性及轉速適應能力、獨立的有功與無功調節能力和較強的進相運行能力，性能超越傳統同步發電機和感應發電機，因而有著廣闊的應用前景。
  20. Then introduce berry ' s work of finding phase factors including quantum phase factors accompanying adiabatic changes, on the base of this, discuss berry phase factors of spinl / 2 particle in rotating magnetic field

    本文接著介紹了berry1984年發現幾何相因子的工作，內容包括從量子絕熱定理推導berry幾何相因子。在此基礎上，把旋轉磁場中自旋1 2系統作為研究對象，對其幾何相位的變化特點進行了討論。
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