expression rate 中文意思是什麼

expression rate 解釋
壓榨速率
  • expression : n 1 表現，表示，表達。2 詞句；語句，措辭，說法。3 表情，臉色，態度；腔調，聲調。4 【數學】式，符...
  • 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. The scielltific computational theories and methods on bird strike to the windshield of aircraft have been systematically studied and summed up in this thesis, such as fem comptltational principles and procedures to elastic dynamic problems under the conditions of small and non - linear finite deformation, 3d viscous elastic constitutive theory and incremelltal expression under the consideration of the rate effect of non - metallic materials like the aircraft windshield, and the numerical compatational principles and key constitutions for impact - contact dynamic subjects

    2 、系統學習並歸納總結了鳥體撞擊風擋結構問題中的科學計算理論與計算方法。按照鳥撞問題數值計算方法逐步深入的思路，系統總結了小變形結構動力學有限元數值計算方法、有限變形的幾何非線性有限元數值計算方法、粘彈性體非線性形變的本構物理關系；對于實施復雜結構有限元動力學計算的載荷增量方法提出了對newmark差分的改進以及進行材料與幾何非線性數值計算的細致步驟。
  2. Expression of oncogene correlates with survival rate and survival quality in osteosarcma

    癌基因表達對骨肉瘤患者生存率及生活質量的意義
  3. Procreant knowledge expression and forward inference engine are adopted in the method of fault diagnosis based on expert system theory. in the fault diagnosis applying neural network theory, six kinds of improved arithmetic of back - propagation arithmetic, including gradient descent with momentum, variable learning rate back - propagation, resilient back - propagation, quasi - newton, levenberg - marquardt and conjugate gradient, are applied to diagnose the faults of electric load manage center and solid state power controller. different diagnostic results gotten by simulation are compared at last

    在基於專家系統的故障診斷方法中，採用了產生式知識表達和正向推理機制；在基於神經網路的故障診斷方法中，則分別採用了bp神經網路的附加動量法、自適應學習速率、彈性bp演算法、擬牛頓法、共軛梯度法和levenberg - marquardt法對電氣負載管理中心和固態功率控制器的故障進行診斷，並對由模擬得到的不同診斷結果進行比較。
  4. Mdr1 express product p - glycoprotein was detected by immunocytochemical method and flowcytometry. the cytotoxicity and multidrug resistance reversion effect of tea polyphenol was examined by mtt assay in mcf - 7 and mcf - 7 adr carcinoma cell lines, and compared with pgp inhibitor quinidine. the pgp expression of mcf - 7 adr was strongly positive, the positive rate was 15 % ; the pgp expression of mcf - 7 was negative, the positive rate was 1. 8 %. ic50 of tea polyphenol to mcf - 7 and mcf - 7 adr is 115. 2g ml and 207. 6g ml respectively. ic50 of quinidine to mcf - 7 and mcf - 7 adr is 129. 8mol l 42. 1g ml and 94. 1mol l 30. 5g ml respectively. tea polyphenol and quinidine changed little toxicity of adriamycin to mcf - 7, but tea polyphenol and quinidine improved the sensitivity of mcf - 7adr to adriamycin significantly. immunocytochemistry and flow cytometry can detect p - glycoprotein expression level qualitatively and quantitatively. tea polyphenol is not only an anti - tumor agent, but also a multidrug resistant modulator similar as quinidine. tea polyphenol is advantageous for its little toxicity in tumor treatment

    用免疫組化法和流式細胞儀對腫瘤細胞系mcf - 7和mcf - 7 adr的p -糖蛋白表達水平進行定性定量研究。用噻唑藍比色法mtt研究茶多酚的細胞毒性及其對耐藥性的逆轉作用，並與pgp抑制劑奎尼定進行了比較。免疫組化法檢測p -糖蛋白表達水平， mcf - 7 adr呈強陽性，而mcf - 7呈陰性流式細胞儀定量檢測結果mcf - 7 adr細胞系細胞陽性率為15 % ， mcf - 7細胞系細胞陽性率為1 . 8 % 。
  5. Furthermore, referring to the literature and considering the specific experimental conditions given by the research, expression of the change of feed rate with time is presented, to obtain the linear growth of the diameter of pre - sintered glass beads, thus the distribution of beads size is relatively well controlled and raw material is spared in some extent. eventually, during the experiment discrete change of feed rate is implemented, and the practical changes of average diameter are plotted, then the results are compared with the theoretical calculated data

    另外，本文通過對造粒技術、燒結過程的大員文獻調研，結合本研究的具體情況，通過控制進料速率呈連續性變化，基本實現了燒結前球坯直徑的線性生長變化，從而更有利於實際生產中的產品粒度控制以及做到節約用料，並在試驗操作中以離散型進料速率變化來加以比較驗證。
  6. On the basis of sga, the validity of improved gaussian approximation ( iga ) method is established in our systems and the accuracy of the bit error rate expression obtained via siga is demonstrated with monte - carlo simulations

    在此基礎上證明改進型高斯近似法（ improvedgassianapproximation ，簡稱iga ）在本文所述系統中的適用性，並利用其簡化演算法（ simplifiediga ，簡稱siga ）得到簡潔的誤碼率近似表達式。
  7. Twenty f1 combinations crossed among 5 varieties and strains different in fiber properties according to complete diallel crossing design were used to evaluate the heterosis and gene action of boll weight and lint percentage in high quality fiber property varieties in upland cotton in 1998 1999 for two year successively at nanjing. it was indicated that there existed small interactions with the environmental factors without maternal effects and the additive gene effect was in chief, attaining to 51. 2 % and 65. 4 % respectively for boll weight and lint percentage. the dominant effect was also in higher rate, 32. 6 % and 16. 8 % respectively. the population mean heterosis of boll weight and lint percentage over the mid - parental mean were relatively prominent 13. 3 % and 3. 5 % respectively in extreme significance. however, boll weight showed no significantly surpassing parental f1 heterosis over the better parent based on population mean ( 2. 0 % ) ; while the lint percentage expressed significant negative heterosis value ( - 2. 1 % ). the gene actions were in conformity with the heterosis expression. it was shown clearly that the f1 combinations crossed between parents with similar performances had relatively high dominant effects and significant positive f1 surpassing parental heterosis ( f1 heterosis over the better parent ) ; while no f1 combination crossed between the parents with prominent mutual difference surpassed the higher parent in yield components, which indicated that among those parents with less difference and close relationships, there still existed sufficient genetic variation or certain mechanism for creating variation and achieving greater advances in breeding. correlation analyses also indicated that there still existed severely undesirable negative correlation between yield and fiber properties as well as the difficulties for their simultaneous improvements

    利用5個具有不同纖維品質性狀的品種（系）配製完全雙列雜交組合20個，通過親本和f1的2年隨機區組試驗發現產量性狀的鈴重和衣分與環境的互作效應小，不存在母體效應，並以加性遺傳效應為主，分別占表型方差的51 . 2 %和65 . 4 % ;顯性遺傳效應所佔的比率也較高，分別為32 . 6 %和16 . 8 % .鈴重和衣分的群體平均優勢較大，分別為13 . 3 %和3 . 5 % ，達到了極顯著;鈴重的超親優勢為2 . 0 % ，不顯著;衣分為顯著的負值（ - 2 . 1 % ） .遺傳分析與雜種優勢結果一致.具體表現在產量性狀上，親本相當配製的組合雜合顯性較高，其超親優勢正向顯著，而極值親本（差異較大）所配組合沒有超過高親的.這表明親本差異小、親源關系較近的親本中仍然存在足夠的遺傳變異或某種機制以創造變異使育種取得更大的進展.相關分析表明了仍然存在嚴重的品質與產量的負相關，遺傳改良的難度較大
  8. The " popcorn " fracture analysis was studied by introducing reasonable simplifications and taking advantage of the strain energy release rate expression involving the hydrothermal effect

    利用本文提出的斷裂判據，通過合理簡化，作者對吸濕電子元件在高溫焊接過程中發生的「爆米花」式脫層斷裂進行了研究分析。
  9. An expression is derived using basical concepts of physics ( i. e. mass conservation ), to define the relationship between sediment transport rate and vertical flux of sediment to the seabed

    從基本的物理概念和物質守恆定律導出了海底沉積物通量的計算表達式，應用該式取得了與實際海域相符的海底沖淤分布圖。
  10. And others are found, and the expression of minimum rate of energy dissipation of flow is re - derived based on the theory of minimum entropy production. ( 2 ) it will be pointed out that the entropy is different from the entropy production in a river system

    （ 2 ）指出河流系統中的熵與熵產生是兩個不同的概念，沖積河流在調整過程中，力求使水流的熵產生或能耗率趨于最小值，而不是使熵趨于最大值。
  11. The expression has a precarious existence in britain, at any rate in the spoken language, and was first heard by me in this contest about 1937.

    這個詞組在英國，至少在口語中，一直不穩定，我第一次聽到這種用法約在1937年。
  12. Firstly, the problem of multiple a priori information fusion has been studied under the condition of the same test environment, such as the consistency test of a priori information, the credibility analysis of a priori information, the calculation of credibility with information likelihood rate, the expression of fusion posterior distribution based on the credibility of multiple a priori information

    首先，研究了同種環境下多源驗前信息的融合問題，如驗前信息的相容性檢驗、驗前信息的可信性分析、基於信息似然比的可信度計算、基於多源驗前信息可信度的融合驗後分布表示等。
  13. Abstract : based on the concept of space migration length of photo - activation species, the analytical expression of the total number n of photo - activation species that can reach a segment on the substrate in the cubic deposition reaction space is derived. the simulation of the relationship of deposition rate and position of substrate is also completed. the simulation result agrees with the experiment data well

    文摘:基於光激活物質空間遷移長度的概念，推導出方形反應空間中到達基片上單位面積的光激活物質總數的解析表達式，對光化學汽相沉積中淀積速率和基片位置的關系進行了模擬和分析.模擬結果同實驗結果符合良好
  14. A significant difference of the expression rate of telomerase activity was found between carcinoma and tumor - adjacent tissue ( p < 0. 05 )

    端粒酶活性表達與食管癌病人的性別，民族，腫瘤部位，分化程度，有無淋巴結轉移等似乎無關。
  15. The major contributions of the dissertation are as follows : 1. it is well known that the multi - value cdma spreading codes can be designed by means of a pair of mirror multi - rate filter - banks based on some optimizing criteria. the dissertation indicates that there exists a theoretical bound in the performance of its circular correlation property, which can be described by an explicit expression. based on this analysis, a criterion of maximizing entropy is proposed to design such codes

    研究了基於兩帶鏡像多速率濾波器組來設計的多值cdma擴展碼的方法，並推導出了基於這種方法設計的碼序列在循環相關特性方面所能達到的極限，以及達到此理論極限時應滿足的條件；在此基礎上，提出了一種基於熵最大化準則來產生cdma擴展碼的設計方法。
  16. A major problem in the production of transgenic animal mammary gland bioreactors is the low production rate of high - expressing transgenic animals due to the position effect to overcome that, including all regulatory elements in the constructs of expression vector seems to be the most reasonable way

    動物乳腺生物反應器生產中存在的主要問題之一，就是由於位置效應的影響而難以獲得高效表達的轉基因動物。為了克服這個問題，在轉基因表達載體中引入了多種諸如mars和insulator等的調控元件。
  17. Objective : to explore the correlatitiy between mental retardation, chromosome aberrtion rate and fragile site expression rate

    目的：探討精神發育遲滯者與染色體畸變率和脆性部位表達率的相關性。
  18. Methods : using the peripheral blood lymphocyte chromosome preparation technique and fragile site technique, to analyze chromosome aberrtion rate and fragile site expression rate of 30 cases of mental retardation sufferer and 30 cases of normal person respectively

    方法：採用外周血淋巴細胞染色[摘要]目的：探討精神發育遲滯者與染色體畸變率和脆性部位表達率的相關性。
  19. About the control group, the chromosome aberration rate of is 1. 55 % ; the fragile site expression rate is 0. 89 %. both the chromosome aberration rate and the fragile site expression rate of two groups are distinct from each other ( p 0. 01 )

    結果：精神發育遲滯者染色體的畸變率為4 . 32 ，脆性部位的表達率為2 . 18 % ，而正常對照組染色體畸變率為1 . 55 ，脆性部位的表達率為0 . 89 ，兩者的染色體畸變率和脆性部位表達率有明顯的差異（ p 0 . 01 ） 。
  20. Conclusion : the mental retardation is correlative with the chromosome aberration and the fragile site expression rate

    結論：提示精神發育遲滯與染色體的畸變率和脆性部位的表達率有一定的相關性。
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