選擇實驗 的英文怎麼說

中文拼音 [xuǎnzháishíyàn]
選擇實驗 英文
choice experiment
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  • 擇 : 擇動詞（挑選） select; pick; choose
  • 實 : Ⅰ形容詞1 （內部完全填滿 沒有空隙） solid 2 （真實; 實在） true; real; honest Ⅱ名詞1 （實際; 事實...
  • 驗 : 動詞1. （察看; 查考） examine; check; test 2. （產生預期的效果） prove effective; produce the expected result
  • 選擇 : select; choose; opt; election; choice; culling; alternative
  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. In order to elaborate the app licability of osl to loess, especially single aliquot regenerative protocol ( sar ), involving stimulation of the same disc with an infra - red laser diode followed by blue leds to polymineralic fine - grains of loess, such explanations as light bleaching, preheat, anomalous fading, prior - ir exposure were investigated in this paper. for drawing adequate coarse grains from loess, quartz and feldspars, as well as loess, were etched by hydrofluoric acid and fluorosilicic acid. the sequence of ages of holocene loess in weihe rivier basin has been established by single - aliquot ( sar ) and multiple - aliquot using fine - grains and sar using coarse - grains

    本文通過渭河流域全新世黃土的光曬退實驗，地表黃土樣品的d _ e值測定，細顆粒單片的預熱、反常衰退、紅外暴露實驗，說明釋光測年在全新世黃土中應用的可行性及單片再生劑量法（ sar ）在黃土細顆粒中的適用性；為了從黃土中分離出足夠的粗顆粒，進行了純石英和長石的氫氟酸（ hf ）和氟硅酸（ h _ 2sif _ 6 ）溶蝕實驗，黃土粗顆粒石英溶蝕分離實驗；通過細顆粒單片、多片的blsl 、 irsl和post - irosl ，熱釋光，及粗顆粒石英的blsl的年代測定，選擇適于全新世黃土的釋光測年方法，並建立了渭河流域全新世黃土的年代序列。
  3. By optimizing the parameters such as the additive quantity of corn straw fibre, the content of amylum, the dosage of vesicant, the selecting of accessorial material, and the temperature of frothing, the cushion packaging material that has decompounding capability was prepared, and the factors influencing the mechanical strength of this material was analyzed by the method of static compress test

    通過對玉米秸稈纖維添加量、澱粉含量、發泡劑用量、輔料選擇、發泡溫度等參數的優化，實驗制備了具有可降解性能的緩沖包裝材料，並利用靜態壓縮實驗方法對該材料力學強度的影響因素進行了分析。
  4. In order to prove the feasibility of the control method mentioned, both the semiphysical test for the plant simulated by analogue computer and the model test for the cantilever beam are designed and finished with the study of the parameter selection in realization

    對離線建模的智能旋翼頻域神經控制方法進行了試驗驗證研究，試驗分兩種情況：以模擬計算機模擬受控對象的半物理模擬試驗與懸臂梁振動響應控制試驗，並研究了實現中的參數選擇問題。
  5. If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g

    如果通過激光冷卻能使原子速度降至很小甚至為零，光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處，其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小，因此，如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。
  6. The experiment was conducted in a 2. 4 ha isolated field mimic rice production practice with pollen competition. a japonica gm rice l201 containing bar gene with herbicide basta resistance was used as a pollen donor and six indica hybrid rice varieties and its male sterile ( ms ) lines and two common wild rice ( oryza rufipogon and o. nivara ) that share same aa genome with cultivated rice were used as recipients

    本試驗選擇廣州作為華南水稻生態區的代表，以含bar基因（抗除草劑basta ）的轉基因粳稻l201為花粉供體，模擬大田生產實際，對轉基因向秈型兩系及三系雜交稻不育系、雜交稻品種及含aa基因組的普通野生稻的基因漂流及其影響因素進行了研究。
  7. Multispectral data for bathymetry is often performed in relatively clear shallow waters, up to now, no one use multispectral data for bathymetry in estuary waters of yellow river, where the highest sediment concentration in the world has been observed. in another part of this thesis, multispectral data acquired by landsat - 5 tm and in situ data are used for bathymetry in estuarine waters of yellow river. statistical models based on one band and two bands of tm respectively are developed

    利用兩期水深的比對可以揭示黃河水下三角洲的沖淤演變規律，但由於實測水深資料獲取較為困難，因而利用遙感來反演水深是一個重要的選擇，為此，本文在黃河口海現代黃河三角洲沖淤演變規律與遙感應用研究端走取兩個試驗區進行了多光譜遙感水深反演試驗，試驗結果表明，在極高泥沙濃度、較強水動力條件的黃河口海域，用多光譜遙感反演水深是可行的。
  8. At 70c, dissolved time 60min, solvent ratio 125 : 50ml / g, the effect of benzene is best to separating phenanthrene of crude anthracene, phenanthrene content of crude anthracene is increased from 10. 3 % to 41. 7 %. at 120c, dissolved time 80min, the solvent ratio 75 : 30ml / g, the effect of dmf is best to separate carbazole from the compound of anthracene and carbazole, and in the high or common temperature when the compound is separated the solid content may be seen that anthracene content is almost. so, the common temperature is selected in the filtration of the experiment

    苯在70 』 c 、溶解時間60min 、溶劑比125 : 5oml / g ，對分離粗蔥中菲的效果最好，可以使粗蔥中菲的含量從10 . 3 %提到41 . 7 % 。 dmf在120 』 c 、溶解時間somin 、溶劑比75 : 30ml / g時，對分離蔥和咔哇混合物中咔哇的效果最好，並且從高溫和低溫下分離后得到固體含量可以看出，在這兩個溫度下過濾得到蔥的含量差不多，因此，本實驗選擇在常溫下過濾。
  9. In trpsin tolerance assay. this virus could resist to 1 % trpsis at 37 in an hour. in acid tolerance assay, this virus was resistant to ph3. 0 and ph5. 0 at 37 in 2 hours, and the average infection litre of the virus decreased little. in heat assay, at 50, the virus was processed from 5 minutes to 150 minutes and at each condition the viral virulence reduced to some certain degree. among these conditions, when at 50 in 30 minutes. the average infection litre of this virus decreased over 2 tilre. and when al 50 in an hour, cpe of ihis virus disappeared. when time was set for an hour. but with processed in different temperature as 50 60 70, 80, the virus losl the multiplication capacity complelely. in biological assay, we selected different cell lines to cultivate this virus by laking advantage of possesional cells at that time in our laboratory. then we found that fcwf cell line was the most sensitive to dxmv and mdck was the second. with f81 cell line, after passaged for 12 times continuously with low concentration of fcs. the virus could produce cpe. however, with vero cell line. the virus could not procuce any cpe after many passages. the hemagglutination and lumadsorption reaction test proved that this virus had no any reaction to erythrocyte of pig, fowl and cavy. by neutrolizaion assay, dxmv could be identified as a kind of ccv

    理化學研究表明，該病毒為rna病毒，對氯仿、乙醚敏感；胰酶試驗中，經37 、 1小時處理的病毒，仍然能夠在貓源細胞fcwf細胞上生長，並且毒力基本保持不變；耐酸性試驗中，病毒分別在ph5 . 0和ph3 . 0經37作用2小時，毒力僅下降一個滴度；耐熱性試驗中，該病毒在恆定溫度50 ，設定不同時間，從5分鐘到150分鐘，毒力均有不同程度下降，其中， 50作用30分鐘，病毒平均滴度下降2個單位； 50 ， 60分鐘， cpe消失；恆定時間1小時，設定不同溫度（ 50 - 60 - 70 - 80 ） ，病毒在細胞上完全喪失增殖能力， cpe消失。生物學試驗，利用實驗室現有條件，選擇不同的細胞系對該病毒進行培養，發現該病毒對貓源細胞fcwf最敏感； mdck細胞次之； f81細胞經多次傳代，亦可出現cpe ；而vero細胞則不敏感。血凝試驗表明，該病毒對豬、雞、人及豚鼠的紅細胞均無血凝性。
  10. The learning behavior of scleroderma sichuanensis xiao fed on the fictitious hosts tenebrio molitor l. in the process of host foraging was studied using y - tube olfactometer

    摘要採用y型嗅覺儀進行雙向選擇實驗，研究了用替代寄主黃粉蟲蛹繁殖的川硬皮腫腿蜂寄主搜索過程中的學習行為。
  11. In the experiment of varistor bleeder circuit, the successful load of equal voltage requires that the relation between load and varistor be correctly defined, so as to choose appropriafe experimental instrument

    摘要在變阻器分壓電路實驗中，要求負載得到均勻變化的電壓時，怎樣確定負載與變阻器之間的關系，以便在實驗中正確選擇實驗儀器。
  12. It formulates the detailed program of carrying out cooperative learning with the survey of students " mentality in learning, and this plan. contains the plans of teaching, the preparation of materials, the choice of space, the arrangement of experiments and so on

    從調查學生的學習心理開始，收集資料，整理資料，制定出詳細的實施方案，包括教學計劃、資料準備、場地選擇、實驗安排等。
  13. Objective : to study the effect of chemosensitivity test in vitro for solid tumor

    目的通過實體瘤體外藥敏實驗指導化療方案選擇，實現腫瘤化療個體化。
  14. So the choice of experiment topics and contents, experiment instruction and experiment evaluation should make appropriate changes to develop study - learning facing the students. we should change the traditional experiment teaching situation which puts undue stress on the proficiency of experiment operating shills but overlooks the cultivation of the students " visual - spatial intelligence

    化學教學是「以實驗為基礎」的，研究性學習必然要體現這一特徵，這就要求實驗課題和內容的選擇、實驗指導和評價作出相應的變化，面向全體學生開展研究性學習。
  15. So that the students can choose different labs and parameters in order to do some simple experiments as character of nature sand, mould assemble and numerical simulation of solidifying process

    學生可以選擇不同的實驗，對實驗進行瀏覽，選擇實驗過程參數，並能完成原砂性能、模具拆裝，凝固過程數值模擬等簡單實驗。
  16. The following two chapters introduce the theory of discrete choice model and discrete choice experiment and how to design the experiment and estimate the model by programming sas codes

    在系統分析的基礎上，本文介紹了離散選擇模型和離散選擇試驗的基本原理及其在市場研究中的應用，並初步的探討了離散選擇試驗設計和模型擬合的sas程序實現。
  17. It consists two studies. study one, choosing grade 8 students as subjects, examined through questionnaire and interviews the difficulties met by 8 - graders in their physics inquiry learning and sorted them out, then preliminarily analyzed teaching strategy to individual, group and teacher ' s effect on inquiry learning

    研究一選擇實驗區八年級學生為被試，通過問卷和訪談深入了解八年級學生在物理探究性學習各環節中面臨的困難，並對這些困難進行了分類，初步分析了個體因素、小組因素和教師因素對學生探究性學習的影響。
  18. A synthetic experimental designing and analytical method based on the " black box " theory and the study of other modern experimental designing and data analytic theories is put forward to satisfy the function of computer - aided experimental design : in certain filtrating criterions, input of experimental factor level is enough to choose experimental designing methods intelligently and create experimental designing results automatically, and to choose experimental data analytic methods intelligently based on the experimental data characteristics and get the experimental analytic results automatically after inputting the experiment result

    本文在研究目前實驗設計及數據分析先進理論的基礎上，提出了一種基於「黑箱」理論的綜合實驗設計方法以及綜合實驗分析方法。其主要思路是:在既定的選取準則下，只須輸入實驗因素水平，即能夠智能化地選擇實驗設計方法並自動生成實驗設計方案;輸入實驗結果，就能夠根據實驗數據特點智能化地選擇實驗數據分析方法並自動給出實驗分析結果。
  19. In experiment the control object is boiler, and the designed fuzzy controller is used to control the real - time system. the effect of the simulation and real - time control is better, which proves good characters and the correctness of the structure analysis of the designed controller, and also manifests that using the structure analysis method can direct the design of fuzzy controller and supply the theory basis

    選擇實驗裝置中鍋爐為控制對象，將本文中提出的具有等比間距隸屬函數的模糊控制器組成控制系統對鍋爐水溫進行溫度實時控制，模擬和實時控制實驗均取得了良好的控制效果，由此證明該控制器的優越性，同時也證明解析結構分析結果的正確性，這表明運用模糊控制器的解析結構分析可以指導完成模糊控制器的設計，並為其提供理論基礎。
  20. After pre - processing each kind of defects, we pickup the characters of defects and recognize it. this part includes : hardware of experiment system ; experiment method ( mainly illumination schedule ) and the image processing schedule

    這一部分包括實驗系統的硬體選擇；實驗方法的選擇（主要是照明方案的選擇） ；圖像處理方案的選擇，具體體現在針對不同缺陷處理方法上的不同。
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