表反曲線 的英文怎麼說

中文拼音 [biǎofǎnqūxiàn]
表反曲線 英文
cyma recta
  • 表 : Ⅰ名詞1 （外面;外表） outside; surface; external 2 （中表親戚） the relationship between the child...
  • 反 : Ⅰ名詞1 （方向相背） reverse side 2 （造反） rebellion 3 （指反革命、反動派） counterrevolutionari...
  • 曲 : 曲名詞1 （一種韻文形式） qu a type of verse for singing which emerged in the southern song and ji...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  2. The inversion results of synthetic magnetotelluric sounding data are ideal, which indicates that the algorithm possesses advantages of expediting convergence, avoiding earliness and improving precision, and can be used in mt data analysis

    對各種類型的大地電磁測深理論曲線進行計算，結果表明：採用實數編碼混合遺傳演算法進行反演具有收斂速度快、解的精度高和避免出現早熟等優點，可用於大地電磁資料解釋。
  3. The main achievements of the dissertation are listed as following. 1 the definition of slw is given to clarify some misunderstanding on the new structure style. the typical experiment results on parallel structure forms, such as erose - section - column frame and conventional shear wall are compared in the point of view of energy dissipating property

    引入短肢墻定義，闡述了短肢墻結構體系是高層住宅合理的結構形式，詳細列出有代表性的異形柱、普通剪力墻結構（或構件）在低周反復試驗中的滯回曲線等主要抗震性能，以作為短肢墻結構體系歸屬定位的依據。
  4. The study results can be summerized as following aspects : ( 1 ) the basic settling curve of this basin was broken - line shape of seven sections in which upper jurassic, lower cretaceous, eocene, oligocene and neogene corresponded with the decline ones representing five episodic clear subsidences of this basin, late cretaceous to paleocene and early miocene corresponded with the rising ones reflecting the uplift and denudation of this basin. ( 2 ) the subsidence of this basin migrated from the east to the west, from mesozoic to cenozoic

    研究表明： （ 1 ）北黃海盆地的基本沉降曲線型式為7段折線狀，其中晚侏羅世、早白堊世、始新世、漸新世、新近紀為曲線下降段，代表盆地5幕較明顯的沉降；晚白堊世古新世以及中新世早期為曲線上升段，反映盆地的抬升剝蝕。
  5. Abstract : the esterification of phthalic acid and ethylene glycol under microwave field was studied. the results showed that it could get high yield of product and need less fime to complete the reaction

    文摘:觀測了鄰苯二甲酸及乙二醇在微波輻照下的升溫曲線，並研究了鄰苯二甲酸和乙二醇在微波輻照下的酯化反應，結果表明，微波輻照下的酯化反應行為優于常規條件（電爐加熱）下的酯化反應行為。
  6. It has been shown that : with the increase of the kerr medium intensity parameter u, the rabi oscillation extent of the mean photon number decrease and the rabi oscillation frequency becomes rapid, the antibunching effect becomes strengthened ; with the increase of n, the interaction between the field and atoms gradually becomes weak, however, the interaction between the field and the kerr medium gradually becomes strengthened and happen in advance ; with the increase of the coupling constants of two atoms, the rabi oscillation extent of the mean photon number decrease and the rabi oscillation frequency becomes rapid too, the antibunching effect becomes weak

    結果表明：隨著值的增加，光子統計演化曲線的rabi振蕩的幅度減小，振蕩頻率變快，系統的反聚束效應增強；隨著初始場強（ ? ）的增大，場與原子的相互作用逐漸減弱，而與介質的相互作用逐漸加強並提前發生。隨著原子間耦合系數g的增大，光子統計演化曲線的rabi振蕩的幅度減小且振蕩周期縮短，同時，系統的反聚束效應減弱。
  7. In the course of the computation, the basic parameters of the atmosphere status of the examples, such as air density profile, temperature profile, relative humidity profile, were compared and further analyzed. the results were showed by means of data forms and curves, which reflect the basic status of the actual atmosphere clearly and detailedly

    在計算過程中，對各樣點的大氣狀況的基本參數，如空氣密度廓線、溫度廓線、比濕廓線進行了比較和分析，並將計算結果以數據表格和曲線的形式列出，較為清楚、詳細的反映了實時大氣的基本狀況。
  8. The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film

    試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。
  9. In contrast to the water temperatures the soil temperatures follow a relatively smooth curve.

    與水溫相反，土壤的溫度變化表現為比較平滑的曲線。
  10. With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion

    研究結果表明：通過對rpc各組分摻量變化的研究，可以找到rpc的最優配合比；試件成型后的熱養護制度對rpc的性能影響巨大； rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況，剛纖維的摻入可以大幅改善rpc的韌性； rpc在成型后存在較大的收縮，而其中的化學收縮要遠遠大於乾燥收縮； rpc具有很強的抗氯離子滲透性能，漿體的密實度很高；通過x射線衍射實驗，可以發現rpc的膠凝體中ch晶體已經幾乎不存在，膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成；在抗溶液侵蝕的實驗中，摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件，酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用，但是機理各有不同。
  11. This paper studies the application of inductively coupled plasma ( icp ) technology to the etching compound semiconductor insb - in film. by means of single probe and double probe, the ion density and electron temperature of chamber ( 30mm and 50mm in height respectively ) under varied process condition were diagnosed. the spatial distribution of the axial position of the two parameters and the varied curve that the two parameters varies with the power and air pressure are obtained

    利用單探針和雙探針診斷30mm高反應室和50mm高反應室在各種工藝條件下的離子密度和電子溫度，得到這兩個參數在反應室軸向位置的空間分佈、隨功率和氣壓的變化曲線、頂蓋接地和反應室體積對它們的影響，結果表明離子密度為10 ~ 8 10 ~ （ 10 ） cm ~ （ - 3 ） ，電子溫度在4 10ev之間；當頂蓋接地時，該處的等離子體密度明顯大於不接地；在同樣條件下， 50mm高反應室內的離子密度明顯大於30mm高反應室。
  12. According to their changes, the decaying process can be divided into 4 stages : the drastic change stage the fluctuant reducing stage the stage tending to be stable the fluctuating and rolling stage

    根據其變化可將腐解過程分為四個階段：劇烈變化階段波動緩降階段相對平穩階段起伏波動階段。表明dtg曲線與dta曲線一樣可以反映腐解過程的特徵。
  13. By successful solution of non - linear magnetic fields and revision of the program, we can reach following conclusions : in the computation of nonlinear magnetic fields, if iteration method is used, under - relaxation is necessary when amending the permeability distribution in soft magnetic materials ; and when < wp = 5 > calculating the equivalent current density in permanent magnets, under - relaxation is not a necessity ; when searching for permeability values by interpolation method on the demagnetization curve of soft magnetic materials, if a fixed saturation point is set, around this point an abrupt change of permeability values will be obtained ; this sudden change may cause a little problem in the smoothness of magnetic field distribution ; because the magnetic circuits of microwave tubes are too complicated, in the author ' s view, to describe the working state of a magnet system, the working points of magnets can not do it properly but average energy production of magnets will serve ; as to indicate the quality of a magnet system design for microwave tubes, the efficiency of magnetic energy utilization will be a very good criterion

    由此得出結論，在非線性磁場計算中：採用迭代法的情況下，在各迭代循環之間進行磁導率修正時，一個欠鬆弛迭代過程是必需的；對永磁體中的等效電流修正時可以不作欠鬆弛迭代；在純鐵的磁化曲線上指定某一個固定的磁感應強度為磁飽和值，會使得插值求出的磁導率在該磁飽和值附近有一突變，這一突變對計算結果中磁場分佈變化的光滑性稍有影響。在微波管磁系統設計中，由於微波管磁路比較復雜，作者認為磁體的工作點並不能很好地反映磁體的工作狀態，而採用平均磁能積為衡量磁體工作狀態的標準更加符合微波管磁系統的實際情況；要表示磁系統設計好壞的程度，則用磁能利用的效率為標準更好。
  14. Simple genetic algorithm gets local minimization too easily and converges slowly. to solve these problems, adaptive crossover rate that has reverse hyperbolic rel ation with the numbers of iteration is designed, and adaptive mutation rate that has reverse proportion to the distances of parents and reverse exponential relat ion to the numbers of iteration is put forward. the practical simulation results show that the adaptive ga has greater convergence speed and larger probability o f getting the best solution

    簡單遺傳演算法存在著收斂速度慢、易陷入局部極小等缺陷.針對這些缺陷，本文設計出隨相對遺傳代數呈雙曲線下降的自適應交換率，並提出與父串間的相對歐氏距離成反比、隨相對遺傳代數指數下降的自適應變異率.實例驗證表明，具有自適應交換率和變異率的遺傳演算法在收斂速度和獲得全局最優解的概率兩個方面都有很大的提高
  15. The methods of quantitative analysis of structural strength of loess are put forward, and effects of soil moisture upon structural strength of loess are also quantitatively analyzed in this paper. the strength of loess is formed by structural strength and compaction strength, and structural strength can be expressed by the difference of stress between structural loess and man - made loess. the structural strength of loess can be quantitatively analyzed by different test in laboratory

    黃土結構強度的大小反映著黃土結構性的強弱，本文比較系統地研究了黃土結構強度的影響因素及其分析方法；黃土的強度由結構強度和固結強度組成，其結構強度可用結構性黃土與重塑黃土的應力差表示，可以用不同的試驗方法，進行結構強度的定量分析；結構強度的發揮過程曲線反映了結構強度隨應變的變化過程；含水量對黃土結構強度構成顯著的影響。
  16. This article confirmed the grafting efficiency of starch grafted to acrylic acid and the structure of starch and its grafted matter through the separation, purification and analysis tests to the grafted copolymer and the grafted forked - chain matter produced from the process of this reaction ; and deduced the formula of the velocity of such reaction mentioned above with a calculated result of the apparent activation energy in this reaction by the curve showing the relationship among the consistency of starch, monomer and initiator and the velocity of the grafting copolymerization

    摘要對澱粉接枝丙烯酸所得接枝共聚物及接枝側鏈物進行分離提純和分析測試，確定了其接枝效率並表徵了澱粉及其接枝物的形態結構；通過分別測定接枝共聚反應速率與澱粉、單體、引發劑濃度的關系曲線，確定了該接枝共聚反應的速率關系式；推算出了反應的表觀活化能。
  17. It is indicated that the hydration process of cement - based materials with slag, fly ash and silica fume is different in some degree from that of neat cement because of the difference in mineral structure and hydration mechanism. the periods of accelerating, decelerating and terminating are prolonged and hydration reaction decelerates. the second peak of rate curve of the heat evolution could be divided into two small peaks, which are contributed to the hydration of clinkers and mineral mixtures at the temperature of 30 but when temperature comes to 50, the two small peaks combine into one and the reaction accelerates

    結果表明，與硅酸鹽水泥相比，由於礦物摻合料與水泥熟料在活性和水化機理上的差異，水化歷程有較大的改變：多組分體系誘導期、加速期和衰減期延長，水化反應速率明顯降低；低溫時，水化放熱速率曲線上的第二放熱峰細化成分別對應于熟料和礦物摻合料水化的兩個小峰；高溫時，反應速率加快，雙峰合併；進一步研究發現，摻合料的種類與摻量對水化歷程也有較大的影響；建立了適用於多組分水泥基材料不同水化階段的水化動力學方程。
  18. The obtained results indicate that the concentrations of reactants in the catalyst layers in front of t he current collectors are very low, that reduce the utility of catalyst ; the current density at the edges of the channels is many times greater than the mean current density

    計算了電池內反應物濃度的分佈、電流密度分佈、甲醇竄流以及電壓-電流特性曲線等。結果表明：集流板前的催化層內反應物濃度非常低；流道邊緣附近電流密度比平均電流密度大許多倍。
  19. Polarization curve experiment showed that the cathode polarizing of the current collector with surfactant increased in alkaline solution

    極化曲線證明，集電體表面吸附有機活性物質后使陰極析氫反應的極化增大。
  20. The dome - top, plane - top ; large - reflective bowl, small - reflective bowl ; wild - degree bowl, narrow - degree bowl ; deep assembling, middle assembling and low assembling led tubes were simulated and experimentally measured for comparison. some conclusions can be drawn that the simulation results fit the experimentation results well in the light distribution. this testified that monte carlo method is one of the effective tools for led light ' s optical design

    根據驗證和分析比較不同led光學結構的需要，製作了有代表性的19種管型的樣管，分別對其模擬模擬輸出配光曲線圖和測試，在模擬光子數設定為10000000個， 1000次反射無出射視為光子被吸收等參數條件下，得到模擬和測試所得配光曲線在一定的誤差范圍內是相同的。
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