衰變特徵 的英文怎麼說
中文拼音 [shuāibiàntèzhǐ]
衰變特徵
英文
decay characteristic-
The characteristic colour changes which are associated with the senescence of leaves of deciduous trees in autumn.
在秋天落葉樹的葉子顏色變化特徵，是同衰老相聯系的。( 3 ) the blockage of filtering bed and the thickening of the argitan can cause the change of hydrodynamic properties in the filtering bed, which leads to the decrease of water quantity
（ 3 ）濾床堵塞和泥膜增厚可能產生濾床中水動力特徵的改變，會產生非飽和流導致出水量的衰減。Abstract : from a universal formula for calculating the attenuation cross section of particles in arbitrary shapes, exact expressions for calcualting the attenuation cross section of polydisperse, small spheroids, whose rotary axes are in specific status, have been derived. attenuation cross sections of both liquid and ice particles in different shapes at different wavelengths in microwave band have been computed and analyzed. the results are informative to microwave remote sensing of precipitation
文摘:從計算任意形狀粒子的衰減截面普遍公式出發，推導出了小旋轉橢球粒子群旋轉軸處于不同狀態時的衰減截面函數表達式，並計算分析各種狀態下衰減截面隨降水粒子相態、形狀和入射波波長的變化特徵，所得結果可用於降水微波遙感。A rare congenital disorder of childhood that is characterized by rapid onset of the physical changes typical of old age, usually resulting in death before the age of20
（兒童的）早衰癥一種少見的少年身體機能失調，以類似年老的身體快速變化為特徵，其結果通常導致二十歲之前死亡Fourthly, with the finite element program, the author analyzes the relationship between the load magnitude or frequency and range of breakage or pore pressure. this can provide appropriate parameters for the method of vibrating grouting. fifthly, adopting the compressible porous medium, the author adduced dynamic theory of liquid saturated porous medium to analyze the displacement and force in the sand when there is dynamic load below the earth surface
基於連續介質力學的混合物理論建立的多孔介質理論和動力控制方程，假設砂土滿足各向同性並處于彈性小應變狀態，豎向振動力將在飽和砂土內部產生三種波，分析了這些波的彌散曲線和特徵衰減曲線，從波傳播的角度，研究了振動力參數和土性參數對振動范圍的影響。The characteristic of the time - variety channel may be represented by rayleigh fading and doppler frequency shift
這種通道的時變特性可用瑞利衰落和多普勒頻移來表徵。In this work, a method is brought out to determine the uranium enrichment by analyzing the cdznte spectrum in 88 - 100kev region, through the y - rays and x - rays emitted from uranium isotopes and their daughters. a code is developed, and the method is verified through its analysis results
本工作通過對鈾的cdznte能譜進行分析，提出了一種利用鈾及其衰變子體在88 - 100kev能區的射線和特徵x射線來粗略測定鈾富集度的一種方法，並開發了能譜分析程序，通過分析結果初步驗證了該方法的可行性。A quantitative analysis on the surface of the plate composite membranes with various polymerization tune was made on the basis of the feature absorption to ir by means of attenuated total reflection - fourier transform infrared spectroscopy. the results showed that polyamide functional layer grew thick with the polymerization time going on. this indicates that the polyamide functional layer formed on the interface cannot separate the w / o phases to stop the reaction
利用衰減全反射-傅立葉變換紅外（ ftir - atr ）對不同聚合時間的平板復合膜表面進行了特徵吸收定量分析，研究發現，聚酰胺功能層隨聚合時間不斷增厚，這說明已形成的聚酰胺功能層不能屏障兩相而終止反應，相反由於哌嗪單體的分子量遠低於納濾截留分子量的范圍，很易擴散穿過功能層達到兩相界面，繼續與有機相單體酰氯反應。Based on the method of conversion from space to time, the pcc pavement performance of the four districts was modeled and discussed
基於方程，還對四個地區路面的衰變特徵進行了探討。Uranium isotopes and their daughters emit - rays and x - rays during the decay process, their peak area and relative efficiency can be calculated through spectrum analysis
在衰變過程中，鈾及其衰變子體放射出射線和特徵x射線，通過能譜分析可以求出它們的峰面積和相對探測效率。The encoding of the data by ann approach is a promising method for the measurement of uranium samples. the determination of the shielded uranium, in particular, by passive gamma - ray detection is a formidable challenge. gamma rays are ideal probes for determining the attributes of uranium in nuclear material transparency monitoring and verification of safeguards regime
2 % ;封裝濃縮鈾屬性的判定一直是nda測量技術中的難點問題，本工作提出了一種輔助探測的方法並給出了高濃鈾的判定依據，該方法通過探測232u衰變子體核素208t1的2614 ， 75kev特徵射線能峰確定鈾樣品中是否存在232u ，從而判定封裝樣品是否為高濃鈾。This paper has studied the mean attenuation, scattering, and back scattering cross sections of groups of small rotating spheroids about characteristics of microwave scattering when their rotatory axes are oriented at random in any direction in 2d plane and 3d space respectively under the condition of normal distribution, and that those physical quantities are changed with different variance, expectation and wave lengths of incident electromagnetic wave
本文研究旋轉軸方向分別在平面內和空間中隨機取向呈正態分佈時的小旋轉橢球粒子群的平均衰減截面、平均散射截面、平均後向散射截面等微波散射特徵，以及這些物理量隨軸向分佈期望、方差及入射電磁波波長的變化。Based on priestley ' s evolutionary spectrum theory, an evolutionary process modulated by decline composite exponential function, is investigated as one kind of non - stationary excitation commonly encountered in engineering, the analytical solution of the response properties is gained due to proper simplification
基於priestley的演變譜密度理論，對于工程中常用到的衰減指數函數調制的演變過程激勵，可以通過對結構響應的合理簡化，得到響應特徵的解析形式。According to the research of the medium - voltage power line transmission characteristics and frequency - domain modeling of bottom up mode that is to accquire characteristic parameters by theoretical calculation, the characteristic modeling of medium - voltage power line is established, and the suitable parameters which can restrain the signal attenuation is gained
本文首先通過對中壓電力線傳輸特性的研究，利用從下往上的頻域研究模式，即通過理論計算獲得特徵參數，建立了中壓電力線傳輸通道特性模型，推出了符合中壓電力線傳輸函數變化的參數，可以有效地抑制信號衰減。In the process to create and pass to the key account value, it is necessary to grasp the success factors for the kam which includes common interest, communication, commitment, credibility, compromise, collaboration and the change of the relationship. part 4 give a method for the kam of hd copper co., ltd., it requires the company construct the key account belief, make a key account management plan strategically, do the work that the plan requires and control the relationship between the key account and the hd copper co., ltd., check the work and notice the change of the relationship, and develop the new key accounts. the main innovative contribution in the paper includes the follow aspects : establishing a system analysis framework for kam in strategically thinking the relationship between the company and its key accounts, exploring the significance and profile of the key account group of profitability, strategy, and loyalty, putting forward three levels of the key accounts " value, concluding the success factors for kam, thinking the relationship between the company and its key accounts as four stages
為了實現這個目標，本文的第三部分深入分析了大客戶關系管理的有效策略及需要把握的成功要素，為了制定有效的策略，需要把握大客戶關系變化的特徵，把大客戶關系發展過程中的生、長、衰、死四個階段都管理好:大客戶關系管理的有效策略是創造和提升大客戶價值，需要從價格、質量、速度、技術、創新和品牌等大客戶價值要素入手，把握大客戶價值創造的動態特徵，向大客戶傳遞核心大客戶價值、大客戶期望價值和超越大客戶期望的價值，大客戶價值是大客戶認知利益與大客戶認知價格的差額;在為大客戶創造和傳遞大客戶價值時，需要把握住大客戶關系管理的成功要素，包括企業與大客戶的共同利益基礎、雙向交流和溝通、企業信守承諾、樹立企業的信譽、企業對大客戶必要的妥協和讓步、與大客戶合作、注意公司與大客戶內部和外部環境及關系本身的變化。These are correlation characteristic parameter, fourier spectrum characteristic parameter, power spectrum characteristic parameter, time domain amplitude characteristic parameter, linear prediction coding coefficients, instantaneous characteristic parameter, absorb and decay coefficient, velocity characteristic parameter and wavelet packet transform characteristic parameter. the parameters contain the surface relatively wide, the prediction which is suitable for the goal of many kinds of seism needs
分別為：自相關特徵參數、付立葉譜特徵參數、功率譜特徵參數、時域振幅特徵參數、線性預測編碼系數、瞬時特徵參數、吸收衰減系數、速度類特徵參數和小波包變換特徵參數，參數涵蓋面較寬，適用於多種地質目標的預測需要。The rule of induction bow attenuation wave that is excited first field and formed in internal will be different with the difference of electric capability of geology body and existence position. so this method can resolve geology question and predigest consumedly research of geology object abnormity
隨地質體導電性能及空間賦存位置的不同，感應渦流衰變的規律也有所不同，通過分析和研究二次磁場的時空變化特徵，達到解決地質問題的目的，因而大大地簡化了對地質目標體所產生異常的研究。It can separate the real signal from noise signal effectively and attains the purpose of de - noise by using time - frequency localizing anslysis, local feature abstract, time - change filter wave, restraining or attenuating some frequency range and other characters of wavelet. furthermore, the ratio of signal to noise has been improved greatly and it is not affected by signal state
而利用小波分析的時頻局部化分析、局部特徵提取和時變濾波、抑制或衰減某些頻率區間等特點，能更有效地把真實信號和噪聲信號區分開來，達到消除噪聲的目的，並且這種方法恢復的信號，信噪比有明顯的提高，還不受信號的狀態的影響。Along with increase of pressure, the parameters such as velocity, amplitude, main frequency and quality factor of seismic wave change big gradually, while change very weakly with the change of temperature. through testing research for artificial crack and pore model, we conclude that crack density, azimuth, opening and the change of pore have obvious influences on speed, amplitude, attenuation ( or quality factor ) and main frequency of seismic wave etc. but, seismic wave dynamic characteristics are more evident than its kinematical characteristics for the change of crack and pore parameters. therefore, it offers reliable experiment foundation for detecting crack and pore by seismic wave kinematical characteristics ( such as amplitude, attenuation and main frequency etc. )
通過對人工裂縫和孔洞模型的超聲波實驗研究，可以認為：裂縫密度、方位、張開度和孔洞密度的變化對縱橫波的速度、振幅、衰減（或品質因子q ）和主頻率等參數均有明顯的影響，但裂隙參數的變化對地震波動力學特徵參數（振幅、衰減、主頻率等）的影響遠遠大於對運動學特徵參數（速度等）的影響，這為利用地震波的振幅、衰減和主頻率等屬性參數進行裂縫和孔洞特徵的檢測提供了可靠的實驗基礎。Objective to investigate the aging of vascular endothelial cells and its following changes in cell biology
摘要目的探討內皮細胞衰老過程中細胞生物學特徵變化。分享友人