transition rate 中文意思是什麼

transition rate 解釋
躍遷率
  • transition : n 轉變，演變，變遷，變化；飛越；過渡期；【音樂】變調，轉調；【修辭學】語次轉變；【語法】轉換；【...
  • rate : n 1 比率，率；速度，進度；程度；（鐘的快慢）差率。2 價格；行市，行情；估價，評價；費，費用，運費...
  1. Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle

    流體噪聲主要來源於輸出流量脈動，造成輸出流量脈動的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流，在配流盤上開設v型尖槽可降低因高壓迴流而引起的流體噪聲，本文以截流作用和液體的可壓縮性為理論依據，以matlab語言為工具，對原配流盤上的v型尖槽進行了理論計算，繪制出p - t圖線，分析了它的不足，並對原有v型尖槽進行了優化設計，得出了v型尖槽的最佳幾何尺寸：配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ，槽長5mm ，槽的橫截面為等邊三角形。
  2. When economically still underdeveloped, china has accomplished a historic transition in population reproduction pattern from one featuring high birth rate, low death rate and high growth rate to one featuring low birth rate, low death rate and low growth rate in a relatively short period of time, a change that took decades or even up to a hundred years for developed countries to realize in the past

    中國在經濟不發達的情況下，用較短的時間實現了人口再生產類型從高出生、低死亡、高增長到低出生、低死亡、低增長的歷史性轉變，走完了一些發達國家數十年乃至上百年才走完的路。
  3. The paper concludes that the changing rate of ndvi of rain forest in tropic is the smallest, the changing curve is smooth, while the changing rate of ndvi of the deciduous broad leaf forest in warm - temperate zone is the largest the change of ndvi is the most conspicuous in winter and spring ( especially in april ) while is not conspicuous in summer and autumn by analyzing the change of ndvi along latitude using the ndvi value of different vegetation types along the same longitude. the vegetation index from warm temperate zone to semitropical zone has obvious transition, while other areas have no distinct change by analyzing the change of ndvi from temperate zone to semitropical zone to tropical zone using ndvi averagejn the same time it is concluded that the sink value in the beginning of the year 1995 is from the influence of the monsoon in east of china by analyzing the ndvi curve of several typical needle leaf forests. the relation between ndvi value and temperature is conspicuous while the relation of precipitation is less or not by analyzing the relation between ndvi and temperature and precipitation finally it can get the conclusion that the change of river area is the smallest, the change of sienna area is the greatest by analyzing two phases of tm data in 1987 and 1997 with rs technic

    利用從同一經度的不同森林類型ndvi值分析，沿緯度方向ndvi變化可得出， ndvi在冬春季變化最明顯（尤其是在4月份最大） ，而在夏季和秋季變化不明顯。利用ndvi均值進行分析，從暖溫帶到亞熱帶到熱帶的變化情況發現，從暖溫帶到亞熱帶ndvi指數形成明顯的階躍，而其它區域沒有太大的變化，同時對幾種典型的針葉林曲線分析可知其年初的凹值源自於我國東部季風的影響。利用ndvi數據分析其與月均溫度與降水的相關性得出與溫度相關性較為顯著，而與降水相關性不顯著或無相關性。
  4. On the premise of stabilizing a low fertility level, china will achieve a gradual transition from a low population growth rate to zero growth, and the total population, after reaching its peak figure, will slowly decrease

    在穩定低生育水平的前提下，中國人口將由低增長逐步過渡到零增長，人口總量達到峰值后開始緩慢下降。
  5. Estimating these models, and fitting sample data lead to a conclusion that the smooth transition autoregressive model is the best one which describes the rmb ' s real exchange rate behavior well

    通過對這些模型的估計，以及在所估計的模型的基礎上對樣本數據進行擬合，發現了最適合中國人民幣實際匯率的動態行為的模型，進而對人民幣實際匯率的行為進行更深入的分析和討論。
  6. In video shot segmentation, an improvement to double - threold shot segmentation algorithm is provided, which uses multi - frame sampling technique and can improve the performance significantly on the detection of gradual transition. an abrupt transition detection algorithm is also developed on the basis of the closest pixels matching in spatio - temporal slice, which decreases the false rate and computing strength greatly

    在視頻鏡頭分割方面，提出了一種基於多幀抽樣的雙重比較鏡頭分割演算法，有效地提高了對視頻鏡頭漸變檢測的性能;同時，針對視頻鏡頭突變的檢測，提出了一種基於最近鄰像素匹配的時空切片鏡頭突變檢測演算法，該演算法顯著降低了突變檢測的虛檢率和計算量。
  7. It is the main purpose of this paper to calculate the energy splitting of ground state and excited states induced by thermally assisted quantum tunneling. first, a brief introduction is given for the theoretical and experimental studies on the magnetic macroscopic quantum effects. then, spin tunneling in a uniaxial ferromagnetic particle in transverse magnetic field is converted to a pseudoparticle moving in effective double - well potential with the help of the effective potential description of quantum spin systems developed by ulyanov and zaslavskii. finally using the periodic instanton method we evaluate the transition amplitude, energy shift and prefactor of wkb exponential and the energy splitting of ground state and the tunneling rate for excited states induced by thermally assisted quantum tunneling are obtained

    文章首先對磁性宏觀量子效應的理論和實驗方面作了簡單介紹，然後藉助于ulyanov和zaslavskii發展的一種等效勢描述方法，把外磁場沿難磁化軸方向時的自旋隧穿約化成在等效雙勢阱中運動的粒子，利用瞬子方法給出基態能級劈裂，最後利用周期瞬子方法分別計算了隧穿幅、能級移動以及wkb前因子，從而給出由於熱助量子隧穿引起的激發態的隧穿率。
  8. ( 8 ) the substitution rate in loop regions is 2. 24 times of that in stem regions. the transition rate is almost same ( 0. 051 and 0. 082 ), compared with the results that the transversion rate of loop regions is the 12. 67 times of that of stem regions

    （ 8 ）環區的所有核苷酸堿基代換率為莖區的2 . 24倍，轉換率幾乎相同（ 0 . 051和0 . 082 ） ；而環區的顛換率卻高達莖區的12 . 67倍。
  9. Part i this paper has minutely studied the interaction between ag ( i ) and serum albumin. the binding of ag ( i ) to human serum albumin ( hsa ) or bovine serum albumin ( bsa ) has been studied by equilibrium dialysis at ph ( 5. 4 ). the scatchard analysis indicates that there exists several strong binding sites of ag ( i ) in both hsa and bsa. a notable hysteretic effect has been observed in the interaction of ag ( i ) with hsa or bsa using uv - visible spectrometry at ph ( 5. 4 ), which shows that the binding between ag ( i ) with hsa or bsa may induce a slow transition of hsa or bsa from the conformation of weaker affinity for ag ( i ) to one of stronger affinity ( a - b transition ). the rate constants and activation parameters of this transition parameters of this tansition were measured and discussed. the binding equilibrium has been also studied by resonance light - scattering spectrum ( rls ) and flurescence quenching

    第一部分：等離子點ph （ 5 . 4 ）條件下，用平衡透析法和紫外光譜，熒光光譜，共振散射光譜研究了ag （ ）與人血清白蛋白（ humanserumalbumin ，簡稱hsa ）或牛血清白蛋白（ bovineserumalbumin ，簡稱bsa ）的結合。 scatchard圖分析表明， ag （ ）在hsa或bsa中有強弱兩類結合部位，通過計算機擬合獲得結合的逐級穩定常數值。紫外掃描發現ag （ ）與hsa或bsa的結合存在滯後效應，表明ag （ ）與hsa或bsa的結合可能誘導蛋白質構象發生緩慢變化（ a - b ） ，測得並討論了這一構象變化的速度常數和活化參數。
  10. The random mathematical model is described using equivalent markov equations. the time and state parameters are discrete. based on the model, the flow rate distributions along radial and average at any height can be calculated directly, moreover, the probability transition matrix of the flow can be determined via the statistic character of the random cumulate particles, and be corrected by s. cd the random theoretical model shown in fig. l, the section of the bed of tbr is divided into a series of concentric circles

    一、在常溫和常壓下進行滴流床反應器流率分佈的研究，以狀態離散、時間離散的齊次markov過程描述了滴流床在滴流區的流率分佈，建立了滴流床在滴流區流率分佈的隨機模型，根據此模型可以： 1 、可直接確定任一高度下的液體徑向流率分佈及平衡流率分佈； 2 、液體流動的概率轉移矩陣可由隨機堆積顆粒的統計特性確定，以參數s修正。
  11. The developing trend of intrusion detection technique is also summarized in the first part of the thesis. the intrusion detection system supporting ipv4, ipv6 and transition mechanism is designed. by analyzing the capture procedure and bottleneck of linux operating system we point out that using technology of napi 、 memory mapping can increase the capturing efficiency and detection accuracy which result in the low rate of error report, lose report

    論文在綜合使用入侵檢測技術的基礎上，開展了以下幾個方面的研究工作: 1 、簡明扼要地介紹了入侵檢測技術的概念、基本模型、歷史和分類，總結了現有入侵檢測技術的發展趨勢，設計了支持ipv4 、 ipv6以及其過渡機制下的入侵檢測系統，並對linux系統中的捕包過程和瓶頸進行了分析，通過使用napi 、內存映射等技術提高了捕包效率和檢測的準確度，降低了誤報、漏報率。
  12. Based on the theory of equilibrate real exchange rate, this paper holds that the exchange rate of rmb should be more flexible to suit to shocks in the process of transition

    摘要從均衡實際匯率理論分析匯率制度，認為人民幣匯率應更加彈性，以適應轉軌過程中的經濟沖擊。
  13. As economic development and population control promote each other, these areas have seen a transition, in a relatively short period of time, to the modern population reproduction pattern characterized by a low birth rate, low death rate and low natural growth rate

    經濟發展與人口控制相互促進，使這些地區在較短時間內實現了向低出生、低死亡、低自然增長的現代人口再生產類型的轉變。
  14. This limited condition not only depends on the rabi frequencies of the coupling field and the signal field, but also depends on the detuning or the decay rate of the additional transition

    這個限制條件不但依賴禍合場和信號場拉比頻率，而且依賴于附加躍遷的失諧量或者衰減速率。
  15. In detail, one - photon detuning for large kerr nonlinearity and photon switching via eit should be far less than the product of the ratio of intensity of the coupling field to the intensity of the signal field, and the detuning or the decay rate of the additional transition

    具體來說，單光子失諧量的取值范圍應遠小於禍合場和信號場的強度比與微擾躍遷的失諧量或者衰減速率之積。
  16. Chinese banking system is in the transition period of turning to market economy and regulated operation. because of high unfavorable asset rate existed in our commercial banks, the bank system is in the state of high risky operation, therefore china sustained development and social stability has been greatly affected

    我國商業銀行當前正處在向市場化、規范化運作的轉型時期，由於我國商業銀行不良資產比率長期居高不下，銀行一直處于高風險運營狀態，嚴重影響了我國金融的可持續發展和社會穩定。
  17. Adopting the amendatory rate equation, the threshold of the micro - cavity has been studied and the conclusion is shown as following : if there is not non - radiation transition, the pump velocity just need to compensate the photon velocity escaped from the cavity, and the intensity of output light will direct ratio to the intensity of input light then we got a micro - cavity laser with no threshold

    採用修正的速率方程對微腔激光器的閾值進行研究，得到如下結論：在沒有無輻射躍遷時，激光器的泵浦速率只需恰好補償光子向腔外的逃逸速率，輸出光強隨著輸入泵浦光強性線增加，實現所謂的「無閾值」激光器。
  18. We first consider the m / m / s queueing model with two priorities. through the analysis of state transition - rate equations of two priorities, the average queue length at the input or output of communications systems is derived

    首先考慮帶有兩個優先權的m m s排隊模型，通過對兩個隊列的狀態轉移方程的分析，給出了通信系統輸入輸出線上的穩態隊長。
  19. The increase of radiative transition rate with decreasing particle size was attributed to the lower symmetry surrounding the eu3 + ions, while the increase of nonradiative transition rate to the extra nonradiative transition channels caused by surface defects. ( 3 ) under excitation of 488 nm, temperature - dependence of emission intensity of the 5d4 - 7fj transition in nanocrystalline y2o3 : tb was studied. in nanocrystalline, there appeared two maximal intensities

    （ 3 ）研究了488nm激光激發下不同顆粒尺寸的y _ 2o _ 3 ： tb納米晶熒光發射強度隨溫度的變化規律，發現y _ 2o _ 3 ： tb納米晶熒光發射強度在280k與590k存在兩個極大值，而體材料只在280k有一個極大值。
  20. In chapter one, we classify the individuals of predator as belonging to either the immature or the mature and suppose that only mature population feeds on prey and immature population does not feed on prey. it is assumed that the transition rate from immature stage to mature stage depends on the density of immature individuals. we construct a predator - prey system with stage structure

    本文第一章，我們將捕食者種群分為未成年與成年兩個階段，並且假使只有成年個體捕食食餌，而未成年個體不捕食食餌；同時假設捕食種群中未成年個體成熟為成年個體的轉化率是未成年種群密度的函數；建立了具有階段結構的捕食者-食餌模型。
分享友人
分享到 Line

分享到臉書