衰率 的英文怎麼說

中文拼音 [shuāilǜ]
衰率 英文
logarithmic decrement
  • 衰 : 衰動詞（衰弱） decline; wane
  • 率 : 率名詞（比值） rate; ratio; proportion
  1. And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results

    接著，對自適應調制系統中的通道估計問題難點，詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然（ ml ）估計和最大后驗概率（ map ）估計演算法，針對平衰落通道，我們模擬了map估計和ml估計的方差與導頻符號長度的關系，模擬結果表明，錯誤方差受多譜勒頻率的變化影響最大，並且對實際的自適應調制系統，導頻符號長度的取值超過20個符號長度時， map通道估計明顯優于ml通道估計。
  2. There has been many papers to discuss the in - medium quark and gluon condensates in nuclear matter which use the models with su ( 2 ) l su ( 2 ) r sym - metry. now, we make use of the chiral model su ( 3 ) l su ( 3 ) n including the baryon octet to discuss the quark condensate < qq > in strange matter, where q is an up or down quark field. on the one hand, from the experimetal data, it is found that < qq > vac = - ( 225 25mev ) 3, on the other hand, with the hellmann - feynman theorem, quark condensate can be evaluated on the hadronic level. in this paper, we will investigate the quark condensate in strange matter with the chiral symmetry su ( 3 ) l x su ( 3 ) rspontaneous breaking lagrangian to obtain the variation of the quark condensate in the strange matter when the baryon number change. it can be applied to understand the neutron stars when the neutron star are considered to be constructed by the strange matter. because nertron stars are homogeneous and at very low temperature, we will use the mean - field approximation and zero temperature throughout this paper

    鑒于已有大量文獻討論了核物質中的夸克凝聚，本文將討論在奇異物質中的夸克凝聚。而在介質中的夸克凝聚的基本公式可由hellmann - feynman理論導出，所以運用手征對稱自發破缺拉氏量以及平均場近似，我們就可以討論在奇異物質中的夸克凝聚，由所計算的結果表明： （ 1 ）奇異物質中的夸克凝聚隨奇異物質密度的增大而單調減小。 （ 2 ） -凝聚的出現對衰減率有影響。
  3. Given the decay rate of 26al, the lower initial ratio in the chondrules implies that these objects formed between one million and two million years after the creation of the refractory inclusions ( assuming that the radioisotope was indeed homogeneously distributed in the early solar system )

    以鋁26的衰變速率估計，這些球粒的初始比值較低，表示它們是在耐火包體產生后100 ~ 200萬年才形成（假設鋁26在早期太陽系中確實是均勻分佈的） 。
  4. I predict that if there is a recession, current fed chairman ben bernanke ( and, in an attempt to hold onto the white house, the republicans ) will flood the market with more money at lower interest rates

    我預言如果有這樣一個衰退，現任聯邦儲備委員會主席本.伯南克會用很低的利率向市場上注入更多的資金。
  5. The fatigue behavior of strength, stiffness, and deformation of concrete is analysed systematically. the fatigue equation is established. the empirical expressions of the total longitudinal strain and the elastic modulus are given, and the relationships between the increasing rate of the total second - stage strain and the decreasing rate of the elastic modulus with the cyclic number are obtained

    系統地分析了砼抗拉、拉-壓疲勞強度、剛度、變形規律；建立了相應的s - n關系，提出了縱向總應變、彈性模量的經驗公式，及其第二階段總應變增長率、彈性模量衰減率分別與疲勞壽命的關系式。
  6. The log decrement are suitable for determining interface bond damage.

    對數衰減率適宜於測定界面粘結的破壞。
  7. The housing market ' s downswing may not yet be over ; and its weakness could prompt consumers to increase their ultra - low saving rates, cutting into demand

    房屋市場的衰落趨勢或許尚未結束，而且其疲軟狀態會促使消費者提高原本處在極低水平的儲蓄率，這會降低需求。
  8. Among the tools used in other jurisdictions were higher capital adequacy requirements during upswings and lower capital adequacy requirements during downswings, and dynamic provisioning requirements to provide for greater loan provisioning during downswings

    其他地區曾使用的工具包括在經濟增長期調高資本充足比率要求在衰退期則調低資本充足比率要求，以及彈性撥備政策以便在衰退期增撥貸款準備金。
  9. In this article, considering the character of the one - dimensioned continuum and the cross - section, the varied quotiety of the strain can be presented as the mode function to identify the damage. and inversion of the elastic wave is presented to detect the injures when the area is the variable of the inversion, for the pip usually buried under the earth or enwrapped into the protection make the detection difficulty by the mode of vibrancy. the influence of the area must be considered if the exactness is the pre - requisition

    在論文中，考慮到壓力管道的一維性質，提出用應變模態改變變化率的方法對一維的結構進行損傷識別；同時考慮到在實際的工程和現場測試中，壓力管道大多深埋在地下或者有外在的保護膜，不宜進行模態的檢測，所以也考慮利用彈性波的方法對壓力管道的性質參數和截面性質進行反演識別，從而得到我們感興趣的東西，達到損傷識別；一般，在利用彈性波反射方法進行損傷檢測中，不考慮截面效應對彈性波的衰減影響，這就對損傷檢測造成一定的影響，本文考慮截面效應的影響，通過實驗來確定截面效應系數。
  10. The calcium products, a variety of elements nitrogen, which is necessary for some nutrients seedling growth can induce root growth seedling vigor, flower, bao lei, 4. 2 peach, rapid calcium, nitrogen and other trace elements that can prevent root blight, fusarium wilt, leaf, blight of rot. weak seedling bud abortion, a potent rotten peach can enhance seedling drought and frost - proof, anti premature senility, anti - std calciprivia plant capacity promotion developed root seedlings seedlings healthy and steady early, squaring focus block chu high boll early, rapid expansion of peach, peach increased weight gain., 1999 chang, the color white lint high, up to 25 to 35 % yield

    本產品含鈣、氮多種元素，是棉苗生長所必需有的養份，能促使棉苗根部生長旺盛，保花、保蕾、膨桃，能快速補鈣、氮等微量元素，可預防根枯病、枯萎病、小葉病、立枯病，對爛根、弱苗、花蕾敗育，爛桃有特效，能提高棉苗抗旱、防凍、抗早衰、抗植物缺鈣性病能力，促進根系發達、苗壯苗健、穩長早發、現蕾集中、座鈴率高、成鈴早、膨桃快、桃增大增重、吐絮暢、色澤白、衣分高，增產可達25 - 35 % 。
  11. ( 4 ) the correlation property between the distribution of attenuation factor and that of the group velocity is indicated, in this study

    （ 4 ）研究結果顯示，在頻率域內，面波衰減系數分佈與群速度分佈具有一定的相關性。
  12. Therefore, during system design, cascade coding combining reed - solomon codes and convolutional codes is utilized ; in addition, time - direction and frequency - direction interleaves are added to alleviate channel fading

    因此在進行系統設計時，採用了rs碼與卷積碼的級聯編碼方案，並同時加入時間交織和頻率交織來對抗通道衰落。
  13. Its decay probability per second is the inverse of this time.

    每秒的衰變幾率是這個時間的倒數。
  14. The breakdown of radioactive isotopes goes on at constant rates.

    放射性同位素的衰變在恆定的速率下進行。
  15. Light water reactors, decay heat power in

    輕水反應堆衰變熱功率
  16. The hyperbolic conservation laws with relaxation appear in many physical systems such as nonequilibrium gas dynamics, flood flow with friction, magnetohydrodynamics, etc. firstly, the thesis proves that there exists a unique global smooth solution for the cauthy problem to the hyperbolic conservation laws system with relaxation ; secondly, in the large time station, the thesis proves that the global smooth solutions of the hyperbolic conservation laws system with relaxation converge to rarefaction waves solution at a determined l ( p > 2 ) decay rate

    帶鬆弛項的雙曲型守恆律組出現在諸多的物理系統中。例如，非平衡態的氣體動力學、帶摩擦的水流、磁動力學等。本文首先證明，帶鬆弛項的雙曲型守恆律組的柯西問題的整體光滑解的存在唯一性；其二，證明了帶鬆弛項的雙曲型守恆律組的解與相應的平衡態守恆律的稀疏波解在大時間狀態下的l ~ p衰減率。
  17. The life time of the metastable n - phase state is evaluated explicitly in term of the instanton method

    對于亞穩的-位相態，我們利用瞬子技術計算了它的衰變率或壽命。
  18. As a combination of ofdm with space - time coding technique, mimo - ofdm becomes more and more important in the future wireless communication systems, the mimo - ofdm system can not only effectively enhance the transmission rate and capacity of the wireless communication system but also greatly mitigate the effections of mufti - path fading and interfere

    Mimo - ofdm技術將ofdm與空時編碼技術有機的結合在一起，能夠大幅度的提高無線通信系統的通道容量和傳輸效率，並能有效的抵抗多徑衰落、抑制干擾和噪聲。
  19. The noise constantly is not affecting our normal life, for example ; just repaired the family, to the quiet at dead of night building about the water pipe noise, has caused you to be unable normally to rest, the senior citizen, the neurasthenia, the heart was not specially good and so on the community, was is unable to rest, the saint porch company produced " the down - flow pipe sound insulation wrap " the product, fundamentally has solved this problem, this product has used the advanced sound insulation, the sound absorption, the material, passed through the specialized technical many years research development, and experimented after the beijing ten plots different levels owner, the sound - insulated effect achieved above 90 %, satisfaction rate reached above 99 %, did not have an example suit, received the owners universal welcome

    噪音無時無刻不在影響著我們正常的生活，例如；一個剛剛裝修完的家庭，到了夜深人靜樓上下水管的噪聲，使你無法正常休息，特別是老年人，神經衰弱，心臟不好等群體，更是無法休息，聖軒公司生產的「下水管隔聲套」產品，從根本上解決了這個問題，此產品採用了先進的隔音，吸音，材料，經過專業技術多年的研究開發，並經過北京十個小區不同層次業主試驗，隔音效果達到90 %以上，滿意率達99 %以上，無一例投訴，受到業主們普遍歡迎。
  20. Results the combination therapy had better results than those of conventional corticosteroid therapy, including the improvement of the clinical manifestations, immunological indexes, renal functions, decreasing of incidence of renal failure and the frequency of side - effects

    結果環磷酰胺沖擊療法聯合小劑量皮質類固醇激素療法組的臨床癥狀及免疫學指標的改善、腎功能的改善及腎衰率的降低均明顯優于單用激素療法組，且不良反應不大。
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