線性子流形 的英文怎麼說

中文拼音 [xiànxìngziliúxíng]
線性子流形 英文
linear submanifold
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  1. In chapter four, according to the analysis on the boundary theory and velocity field of main fluid zone of two - phase fluid pumps, the parameter equations of vane ' s modular curve of centrifugal pump are given, which contact the boundary " layer and eular theory of two - phase fluid pump by the fixing angel of vane as variable and leading into the velocity coefficient a. the results show that, in designing process of vane ' s modular curve of centrifugal pump, the determination of the total shape and parameters relates the flow properties of two - phase fluid and output ability of pump, or the design of the modular curve of centrifugal pump is the kernel of hydraulic design

    第四章依據固液兩相流泵的邊界層理論及對主流區速度場的分析，給出了離心泵葉片型線的參數方程；它是以葉片安裝角為參變數，以引入的速度系數k _ v作為中間因子，將兩相流泵的邊界層理論和歐拉理論聯系起來? ?它說明了這樣一個事實，在離心泵葉片型線的設計過程中，它的整個形態或參數的確定都關繫到兩相流體的流動特性和泵的輸出能力，或者說，離心泵型線的設計是其水力設計的核心。
  2. The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,

    基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。
  3. We introduce the fabrication of all samples and anneal of fexcu ( 1 - x ) granular film in detail. the configuration of granule film is investigated by scanning tunneling microscope ( stm ). the matter phase is analyzed by x - ray diffraction ( xrd ). the hysteresis loop of co / al2o3 / feni magnetic tunnel junction is studied by vibrating sample magnetometer ( vsm ). we use microresistance test system ( mts ) to investigate the character of resistance, conductance, voltage and current

    用掃描電子顯微鏡（ stm ）觀察顆粒膜樣品的表面形貌；用x ?射線衍射儀（ xrd ）對顆粒膜樣品進行物相分析；用振動樣品磁強計（ vsm ）對co al _ 2o _ 3 feni隧道結的磁滯回線作了研究；用微電阻測試系統對樣品電阻、電導、電流、電壓相關特性進行詳細的研究。
  4. The control of beam halo - chaos becomes a critical problem in the development of high intensity accelerator. efforts to remove the halo by collimation have been largely unsuccessful since the halos almost always regenerate. the mechanisms of halos are complex, such as nonlinear resonances and chaotic behavior etc. considering this, professor fang jin - qing who works in china institute of atomic energy pointed out that the theory of chaos control can be used to control beam halos. he presented the method to control halos by using nonlinear functions, which means nonlinear function g is added to the right of ion radial self - edlctric force equation and some nonlinear function are selected to control beam halos in simulations. in paper [ 69 ], controllerg = - 0. 15sin ( rmax - am ) 2 was used and the halo intensity was decreased to 0. 1078, the halos are removed partly

    束暈?混沌的控制是新一代強流加速器研製的關鍵問題，隨著強流離子束應用前景的日趨廣闊而日益成為研究的熱點。傳統機械限束器因無法解決束暈的再生而收效甚微，因為束暈的形成有著其內在動力學機制?非線性共振以及混沌等。基於此，中國原子能科學院研究員方錦清將混沌控制的理論和方法開創性的運用於束暈?混沌的控制上，提出了控制束暈?混沌的非線性控制策略，即在粒子徑向所受束自生場力方程的右邊加上非線性控制函數g ：並選取一些非線性函數如等進行了控制的模擬研究，將束暈強度控制在0 . 1078左右，取得了初步的控制效果。
  5. When the plane was heated, observation showed that the shape factor increased from 1. 5 to 2. 6 ; the mean velocity profile departed from the law of the wall ; the inertial subrange in the energy spectra curves disappeared ; the intermittent phenomenon occurred

    發現在加熱的情況下，邊界層的形狀因子由1 . 5上升至2 . 6時均速度廓線中的平衡湍流層消失以及速度能譜中慣性子區消失等變化。
  6. 2. in this paper, the continuity of the wavefunction and of its derivative divided by the band - mass can be satisfied and the number of the terms is small when calculating the energies of the single electron in a square quantum wire with finite barriers, then this wavefunction can also be selected as the envelope function in studying the impurity states and the excitons in the square quantum wires with finite barriers

    2 .由於本文所取波函數滿足波函數的連續性條件和粒子流的守恆條件，並且計算有限深方形量子線中單電子的能量時需要展開的項數較少，故此波函數也可選為有限深方形量子線中雜質態、激子等問題的包絡函數。
  7. The first two kinds of wavefunctions are simple formally, but there must be error of the numerical values of some physical magnitudes because there is a trouble with the continuity of the function and of its derivative divided by the band - mass at the boundaries. though the third kind of wavefunction can satisfy the continuity of the function and of its derivative divided by the band - mass, the number of the terms is so large that it is difficult to calculate the physical magnitudes in the single quantum wire

    前兩種波函數形式比較簡單，但由於在邊界處波函數的河北師范大學碩士學位論文連續性條件和粒子流的守恆條件存在問題，這必將對某些物理量的計算產生影響;第三種波函數在邊界處滿足波函數的連續性條件和粒子流的守恆條件，但是對于單量子線需要展開的項數很多，計算量太大。
  8. This paper has studied the wavefunction expanded in terms of the two - dimensional harmonic oscillator eigenfunction through calculating the energy of the ground state, the energy of the first excited state and the oscillator strength in a square wire with finite barriers and studied its application in these fields. the most remarkable advantage of this wavefunction is that it can satisfy the continuity of the function and of its derivative divided by the band - mass and it is convenient to calculate some physical magnitudes because the number of the terms is small

    本文通過計算有限深方形量子線中單電子的基態能、第一激發態能和振子強度研究了以二維諧振子本徵函數為基展開的波函數以及它在這些問題中的應用，此波函數的顯著優點是：在邊界處滿足波函數的連續性條件和粒子流的守恆條件，並且展開項數少，計算方便。
  9. High molecule physics and the damage theory of rheologic material with lacuna are used in experiments to study the pmma ' s nonlinear viscoelasticity and changing depends on time and temperature when distorting and destroying. we try to seek a common rule to polymer ' s crazing damage, offer a viable damage model and measure to research polymer ' s minute damage

    本文運用高分子物理、含缺陷流變性物體的材料破壞等理論，以實驗為基礎，對聚合物變形、破壞以及時間相依和溫度依賴性等非線性力學行為進行研究，試圖尋求聚合物銀紋損傷的一般規律，為研究聚合物的細觀損傷提供了一種可行的損傷模型與方法。
  10. First, we think periodicity and weakening surge of the nonlinear waveform is caused by self - excitation of the circuit. the electric field thresholds ( et ) and maintenance field ( es ) of lock - on are modulated by the ac electric field ; the nonlinear waveform became two main modes of trans - electron oscillator, namely delay polar domain mode and quenched dipole domain mode

    指出非線性波形周期性的減幅振蕩，是由於光電導開關所處電路自激振蕩形成的交流場對偶極疇的閾值電場e _ t和維持電場e _ s進行控制，從而形成轉移電子振蕩器的兩種主要工作模式：延遲偶極疇模式和猝滅偶極疇模式。
  11. And the linear viscoelastic behavior, steady rheological behavior and the formation / evolvement of particles net structure for molten nanocomposites were studied using an advanced rheometric expansion system ( ares ) and capillary rheometry. it is believed that the melt intercalation is a more efficient processing for formation of nanophase in polymer - layered silicates hybrids

    用高級流變擴展系統（ ares ）及毛細管流變儀對復合體系熔體的線性粘彈行為、穩態剪切流變行為進行了表徵，並對熔體粒子網路結構的形成與演化作了較系統的研究。
  12. Under the best grading way, the shape of the band profile is more propitious to the transfer of the carrier

    漸變長度較長時，線性漸變是最佳漸變方式，能帶形狀更適合載流子輸運。
  13. Since 1980s, many mathematicians have been engaged in studying the applications of the grobner basis such as solving the system of algebraic equations, factoring polynomials, testing primary ideals, factoring algebraic manifolds, decoding circular codes in corrected codes and algebraically geometrical codes, analyzing and synthesizing high dimensional linear recurring arrays in cryptology, dealing with multidimensional systematic theory, signaling, solving integer programming and so on

    ） bner基的應用研究包括代數方程組求解，多項式的因子分解，素理想的檢驗，代數流形的分解，糾錯碼中循環碼和代數幾何碼的譯碼，密碼學中高維線性遞歸陣列的分析與綜合，多維系統理論，信號處理和求解整數規劃等諸多領域。
  14. In capter 2, it is proved that the system possesses a global attractor and a two - side estimate for the fractal dimension of it is presented. in capter 3, several different approximate intertial manifolds of the system are constructed by applying linear galerkin method, method of projecting operator and operator eigenvalue and successive iterative method, and it is proved that arbitary trajectory of the system enters into a small neighbourhood of the global attractor after large time. capter 4 studies the asymptotic attractor of the system by constructing a solution sequence which approaches to the global attractor of the equation in long time, and the dimentional estimate of the asymptotic attractor is given

    第二章證明了該系統的整體吸引子的存在性，給出了其分形維數的上下界;第三章利用線性galerkin方法、運算元投射和運算元特徵值方法及逐次迭代方法構造了幾類近似慣性流形，證明了該方程的任意解軌道在長時間后進入整體吸引子的任意小鄰域;第四章構造了一個有限維解序列即該系統的漸近吸引子，證明了它在長時間后無限趨于方程的整體吸引子，並給出了漸近吸引子的維數估計
  15. Then the constant of peukert equation is calculated from the linear interpolation. simultaneity the characteristic curves of the battery capacity, electromotive force and inner resistance are fitted with least - squares. the maximal of relative error between the calculated values from the models and the experimental data is 2. 59 % under 50a discharge current

    利用peukert方程的變形式，用線性插值法計算出鋰離子電池的peukert常數值；利用最小二乘法擬合了該動力電池的容量特性、電動勢和內阻特性曲線；在50a的放電電流下，數學模型的計算值與試驗結果的最大相對誤差為2 . 59 。
  16. Nanofluids exhibit superior heat transfer performance to conventional heat transfer fluids. one of reasons is that the suspended nanoparticles remarkably increase the thermal conductivity of the nanofluids. in this paper, the transient hot - wire instrument for measuring the thermal conductivity of sample nanofluids is developed

    研製了一套瞬態熱線實驗系統，測定了幾種納米流體的導熱系數，分析了納米粒子屬性、份額、形狀、尺度及納米流體溫度等因素對納米流體導熱系數的影響，探討納米流體強化導熱系數的機理。
  17. In 1860, schrodinger first put forward the concept " schrodinger equations " in quantum mechanics and since then, the study on schrodinger equations has never stopped, for the mathematical description of many physical phenomena belongs to the field of schrodinger equations, such as nonlinear optic, plasma physics, fluid mechanics etc. as for the form of schrodinger equations, linear schrodinger equations was gradually replaced by nonlinear schrodinger equations ; as for the methods of solving schrodinger equations, the modulus estimate of energy, the principle of contraction mapping, fourier transformation and harmonic analysis are used ; as for the space of the solutions, many people have worked on the problem in bounded domain, euclidean space of dimension n, periodic bounded conditions and mixed regions and they also combined it with the generalization from low dimension to high dimension

    ） dinger方程，如非線性光學、等離子物理、流體力學[ 21 ]等；在方程形式上，從線性schr （ ? ） dinger方程到非線性schr （ ? ） dinger方程；在處理方法上，用能量模估計、壓縮映象原理和fourier變換調和分析等；在方程解空間上，研究有界區域、 n維歐氏空間、周期性有界區域和混合區域等，並且結合從低維向高維推廣。
  18. What the subject researching is that power energy should be measured with base wave ammeter to power systematic nonlinear user ; and that it is high veracious by base wave ac parameters measurement method to those not bad contaminative. it is well known that all kinds of ac parameters including of base wave and harmonics, but the content of harmonics in power systems increase largely with the mass disturbance to power using high - power electric equipment. which makes wave shape of voltage and current aberrence, so the measurement veracity and reliability decreased largely. at the same time brings out serious infuency to safe run of power system and electric equipment. the power which any non - linear loads consumes can be divided into two sides, one is base power absorbed in power and the other is minus harmonics power

    本課題所研究的問題是針對電力系統非線性負載用戶採用基波電度表來計量電能；而對諧波污染不嚴重的線性用戶採用基波交流參數測量的方法仍然具有較高的準確性。眾所周知，各種交流參量都包含基波和各次諧波，然而隨著電力電子技術的迅速發展，大功率的用電設備對電網的干擾也是越來越嚴重，導致電力系統諧波含量迅速增長，使電壓和電流的波形產生嚴重畸變，測量的準確性和可靠性都大大降低，同時也對電力系統和用電設備的安全運行帶來嚴重的影響。任何一種非線性負載所消耗的功率都可以分為兩部分，一部分為從電網中吸取的基波功率，另一部分則是負的諧波功率。
  19. With the broad application of the electrical and electronic technology in the industry branches and the power apparatuses, the number of non - linear loads is much more and more, and the capacity of them is biggish, so a mass of harmonic is injected into the power system, which produces the waves of voltage and current in power system to be aberrant seriously

    隨著電力電子技術在各工業部門和用電設備上的廣泛應用，非線性負荷數量越來越多，容量也越來越大，諧波大量注入電網，使電力系統電壓、電流波形發生嚴重的畸變。由於大多數儀器、儀表是針對工頻正弦波設計的，因而造成指示數據不正確。
  20. The extensive applications for power electronic apparatus and nonlinear equipment distort the waveforms of voltages and currents. as a result, power quality is going much worse. in addition, due to the improvement of industrial automatization, such parts of an apparatus as mpu and plc are applied to industrial process controls, which are disturbed easily by stirs from power system

    一方面由於電力電子器件和非線性設備的廣泛應用，使得電網中的電壓、電流波形發生畸變，造成電能質量的嚴重惡化；另一方面由於工業自動化水平的提高，微處理器和plc等智能器件大量應用於工業過程式控制制，而這些精細過程式控制制更容易受到電力系統抖動的影響，因此現代工業對電能質量提出了更高的要求。
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