等密度曲線 的英文怎麼說

中文拼音 [děngxiàn]
等密度曲線 英文
curve of equal density
  • : Ⅰ量詞1 (等級) class; grade; rank 2 (種; 類) kind; sort; type Ⅱ形容詞(程度或數量上相同) equa...
  • : Ⅰ名詞1 (秘密) secret 2 [紡織] (密度) density 3 (姓氏) a surname Ⅱ形容詞1 (距離近; 空隙小)...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : 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...
  • : 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. With the numerical solution, an internal condensation critical curve can be calculated out by condensation theory and depositing theory, on the curve, the enter water ability equal to the out water ability, which can be used as the basis to determine the occurrence of internal condensation. but the result doesn ’ t coincide with the real completely. in this dissertation, we plan to get the critical curve by practical experiment results, because that the enter water ability only relates to the condensation density and the out water ability only relate to the volume ratio of the pneumatics system

    然而由凝結理論和沉積理論得到的計算結果往往與實際有一定偏差,本課題希望通過實驗的方法獲得內部結露臨界,即系統進水能力和排水能力相,由於系統的進水能力和充放氣過程中凝結水滴有關,排水能力和系統容積比有關,可以通過大量實驗總結出以凝結水滴和容積比表示的內部結露臨界,作為判別內部結露是否發生的依據。
  2. The scaling relations of conduction time and opening time with the plasma density, which are computed by a series of simulation results, show that, influence of plasma density on conduction time is greater than opening time. influence of cathode em itted electrons on conduction process, which is found to be more important when initial plasma density is low, is dependent of the initial plasma density. the penetration of a magnetic field into cylindrical middle - density ( 1013 / cm3 ) c + + and h + plasma with uniform and parabolic density profile, are examined with aid of pic simulation

    模擬得到的低( 10 ~ ( 11 ) cm ~ 3 10 ~ ( 13 ) cm ~ 3 )條件下導通和斷路時間與離子體的定標關系顯示:對于導通時間的影響遠大於對于斷路時間的影響;陰極電子對于peos導通過程的影響程與初始離子體有關,初始越大,陰極電子的影響就越小。
  3. At first, based on the results of in - situ load tests, the load - settle curves are acquired, and the effects of different reinforcement parameters are presented. these parameters include the linear density ratio ( ldr ) ; the location of the top layer of the geobelt measured from the bottom of the load plate ( u ) ; the different materials of geobelt ; the number of reinforcement layers ( n ) and the distance between the two layers of geobelt ( a h ). these results show that the bearing capacities of the reinforced composite foundation can be improved and the settlement can be reduced

    首先,通過現場載荷試驗,獲取了加筋墊層復合地基荷載-沉降,從筋帶鋪設的、筋帶的首層間距、不同筋帶材料、加筋層數以及雙層筋帶的層間距幾個方面分析了以上加筋參數對加筋復合地基承載力的影響,指出筋帶的存在提高了加筋復合地基的承載力,減小了沉降。
  4. Firstly, we generalize and analyze the advantages and present research of elliptic curve cryptography ; secondly, we study the basic theory of the ecc ; thirdly, we illustrate the safety of the ecc and discuss the elliptic curve key agreement scheme, elliptic curve encryption scheme and elliptic curve digital signature algorithm ; fourthly, we study fast algorithms of the multiplication and inversion multiplication of the element of in the underlying finite field f2m whose characteristic is two represented by the two basis of optimal normal basis and polynomial basis. we make improvements to the fast algorithm of the polynomial basis multiplication by hankerson and base on the experiments, we describe the properties and compare the advantages of the multiplication and inversion multiplication of the elements in f2m field under optimal normal bases and polynomial basis. results concluding from the study car be used as references in the realization of the elliptic curve cryptosystem ; fifthly, we overview the current fast algorithm of point multiplication, improve the fix base point comb algorithm, advance the speed of the whole system and remark the advantages and disadvantages of the popular algorithms based upon the experimental datas ; sixthly we realize the algorithm library of elliptic curve cryptography based on the f2m. only change slightly in our algorithm library can we realize the ecdh, eces, ecdsa based onf2m of anysize ; seventhly, we realize the ecc on two secure elliptic curves, including ecdh, eces, ecdsa

    本文首先介紹並分析了橢圓碼體制的優點及研究現狀;其次研究了橢圓碼體制的基本理論;第三,分析了橢圓碼的安全性並介紹了鑰共享,加,數字簽名橢圓碼體制;第四,深入研究了特徵為2的有限域f _ 2m中的元素在多項式基和最優正規基表示下的乘法運算和乘法逆運算的快速演算法,並對hankerson人提出的多項式基下的乘法運算的快速演算法作了改進,而且在實驗的基礎上不僅分析研究了f _ 2m域中元素在多項式基和最優正規基表示下的乘法和乘法逆運算的性能,還對這兩種基表示下的f _ 2m域中元素運算效率的優劣作了比較和研究,所得的結論可供在實現橢圓碼體制時參考;第五,研究了目前流行的計算橢圓標量乘法的快速演算法,同時改進了固定基點梳形法,提高了整個系統的速,並在實驗的基礎上分析研究了流行演算法的優劣;第六,實現了基於f _ 2m的橢圓碼體制的演算法庫,在我們的演算法庫中只需稍微改變便能實現基於任意尺寸的f _ 2m上的ecdh , eces , ecdsa橢圓碼體制;第七,實現了兩條安全橢圓上的橢圓碼體制,包括ecdh , eces , ecdsa 。
  5. In order to solve this contradiction, reservoir engineering methods are used to estimate the exploitation process about the block, which including water drive curve method, the correlation experience method, the method of the flow pipe budgetary estimate and the method of well net density. on the basis of these method, the author studied the macrocospical distributing of remaining oil in each layer

    針對單元開發過程中存在的突出矛盾,運用水驅法、相關經驗公式法、流管概演算法、合理井網油藏工程方法對斷塊的開發歷程進行評價,在此基礎上進行各小層剩餘油的宏觀研究。
  6. 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和電子溫,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、頂蓋接地和反應室體積對它們的影響,結果表明離子為10 ~ 8 10 ~ ( 10 ) cm ~ ( - 3 ) ,電子溫在4 10ev之間;當頂蓋接地時,該處的離子體明顯大於不接地;在同樣條件下, 50mm高反應室內的離子明顯大於30mm高反應室。
  7. In order to recognize low resistivity oil layers, we have used many methods, such as engraving method, resistivity curve overlapping method, density and acoustic curves overlapping method, or density, acoustic and neutron curves overlapping method, as well as quantitative interpretation method, etc

    為了識別低電阻油層,我們採用了多種方法,例如圖版法、電阻率重疊法、與聲波重疊法或、聲波與中子重疊法,以及定量解釋法
  8. The time difference curve may confirm the fast formation ; judge the tool ' s centrality ; verify the bonding quality combining with cbl / vdl curves, and also determine the casing collar position, etc

    時差則可以根據時差的大小驗證快速地層;由的變化幅判斷儀器在井中的居中程;結合首波的幅波列的變驗證膠結狀況是否良好;利用時差的變化確定套管接箍位置
  9. 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的分佈、電流分佈、甲醇竄流以及電壓-電流特性。結果表明:集流板前的催化層內反應物濃非常低;流道邊緣附近電流比平均電流大許多倍。
  10. The calculation program using the matlab has been worked out to get the numerical solutions of the proposed models. the experiment has first been conducted in the laboratory to get the fundamentals thermal and moisture properties ( such as materials density, specific heat capacity and thermal conductivity ) and also the material moisture absorption isotherms of adobe building materials. the methods of measuring the surface mass transfer coefficient and material moisture content have been proposed

    首次對生土建築材料物性參數進行了實驗測試,得到了常用生土建築材料的、比熱和導熱系數參數值,得到了生土建築圍護結構的溫吸濕平衡的擬合函數關系式;此外,研究了生土建築圍護結構表面質交換系數實驗測定方法,探索了利用電阻率測量生土建築圍護的安窪築科技人學博十學位論文結構內部含濕量的測試方法。
  11. The numerical results of the dispersion relation show some nonlinear effects : for a fixed geometry of a waveguid, beam parameters and plasma density, the increment of the modulation parameter may lead to a slight increment of the operating frequency, however, as the modulation parameter increases further, saturation may occur and the dispersion relations are hard to be separated, it is due to the overmodulation of the microwave power, this phenomenon itself belongs to the nonlinear effects

    對於一定的波導、電子注參量和離子體值,離子體調制系數的增加,使工作頻率略微升高。但是,隨著離子體調制系數的進一步增加,色散變得彼此之間不可分辨,可以認為是離子體的過調制導致了柵的飽和。這一現象是非性的,可見,離子體柵和調制場中文摘要是非性關系,離子體柵是非性j 。
  12. For example, digital signature, identity distinguish are both the new technology and application derived from the cryptography. ecc is the one of the known public crypto methods that provide the best strength - per - bit. with the deeper application of ic card in the field of finance and telecom, the ecc crypto system will not only upgrade the application level of ic card, but also open up more application fields

    橢圓碼體制( ellipticcurvecryptosystem ? ecc )是目前已知的所有公鑰碼體制中能夠提供最高比特強( strength - per - bit )的一種公鑰加體制,而智能卡已廣泛用於金融、電信領域,利用橢圓碼體制不僅將大大提高智能卡的應用水平而且還將大大拓寬智能卡的應用領域。
  13. Having great difference with the tradition structure, its outline is no - gradual - enlargement. the reason of rotator the key point coordinate and restriction, origin of the new coordinate system after transform, the angle of the rotator. transform of the key point between the new and old coordinate system, the rotator angle of coordinate system in ansys during the fem model come into being

    本文討論了非漸擴形結構指尖梁關鍵點坐標旋轉的原因、旋轉的約束條件,旋轉后新坐標系圓心坐標的獲得、旋轉角大小的確定、梁型關鍵點坐標在新舊坐標系之間的轉換及在ansys中建立有限元模型時坐標系旋轉的原因及角大小的確定問題。
  14. In this paper, first discussed are the corresponding results in highway and dam constructions and the engineering characters of rock - fills are deeply analyzed, especially the relationships between gradation, strength and maximum dry density, long - term stability of fillers including earth - fillers and rock - fillers and some conclusions of use are drawn. by in - situ tests and researches on compacting mechanism of high - filled rock embankments, effecting factors on compaction, construction technology and shock compacting technology, obtained in this paper are the compacting technology of high - filled rock embankment and the optimal parameters of rolling compaction. by deeply research on the theory and methods of quality control of high - filled embankment, settled are the questions as quality detection method and control standard of high - filled rock embankment

    本文首先總結和分析了國內外公路和壩工行業已有的相關成果,深入探討了填石料的工程性質與最大幹、長期穩定性之間的關系,得到了一些有益的結論;通過現場試驗路堤的試驗和對高填石路堤壓實機理、填石路堤壓實效果影響因素、施工工藝和沖擊壓實技術研究,解決高填石路堤壓實工藝和最優碾壓參數控制技術問題;通過深入研究填石路堤壓實質量控制原理和方法,解決高填石路堤壓實質量檢測方法和控制標準技術難題;解決高填石路堤沉降觀測技術問題,並根據沉降觀測結果研究高填石路堤地基和路堤沉降變化規律,得到了能預測沉降變化規律的「龔帕斯」成長預測模型;根據工程實際,深入研究了邊坡穩定性的影響因素,得到了有益的結論。
  15. Several influence factors to result plasma drift in hainan were analyzed. in this paper the characteristics of ionospheric parameters variation were analyzed systematically and some new results in storm - time such as seasonal behaviors were obtained ; it is the first time to investigate the ionospheric drift behavior in hainan and some new results was obtained, the relationships between each two plasma drift velocity components in storm time in hainan were found and the electric filed variation in hainan ionosphere also was obtained ; the results also show that there are big differences of the ionosphere parameters bo and bl obtained from the data with that obtained from the iri - 2001 applied for hainan ; a new phenomena was found during a strong magnetic storm, that a layer with very strong electron density and density grad was found during the recovery phase of the storm, its horizontal scale is beyond 100km and temporal scale is about 2 hours, this phenomena repeated 3 times continuously. a type of negative disturbance in high and low latitude but positive disturbance in east - asia also has been found

    本文較為系統地給出了海南地區電離層的參數變化特徵,特別是得到了一些暴時與以往不同的季節特性;第一次給出了海南地區的電離層離子體漂移特徵,發現離子體漂移暴時擾動在三個方向上有內在的聯系,得到了電場變化;研究結果還表明海南電離層的半厚指數和形狀參數與國際參考電離層iri - 2001存在很大差別;通過對強磁擾動事件期間的參數變化特性分析發現,在磁暴恢復相期間海南地區電離層底部存在一個電子非常大的高區,高區底部電子隨高急劇增加,該區域的水平尺可達100公里以上時間尺約為2小時,連續出現過三次,這是一個在海南從來未發現的新現象;研究還發現了暴時東亞地區電離層擾動會出現高低緯負相而中緯正相的現象。
  16. All this has laid a strong foundation for selecting a subject of maskless afm nanolithography, i. e., field - induced oxidation of si semiconductor. in chapter two, a high - intensity current between a probe tip and a sample is discussed first. electrical intensity between them is simulated using matlab software after an electrical model is introduced, thus theoretically analyzing the effect of tip radii, tip - sample separation, radii at the sample, and biases on the morphology of field - induced oxidation

    第二章首先討論了掃描探針與樣品之間的高電流,得出了電流與偏置電壓和探針?樣品間距切相關,其關系不能以簡單的性或指數函數來表述的結論;然後引進了掃描探針場致加工的電場模型,利用matlab模擬探針與樣品之間的電場強,分析了掃描探針加工條件包括探針針尖率半徑、探針-樣品間距、樣品平面半徑以及偏置電壓對場致氧化物幾何形態的影響。
  17. Since the company began to resrerch and make radiators in 80 ' s last century, domestically advanced production lines have been adopted in the production. we sim at 100 % conformity of heat impedance performance curve with the testing standards stipulated in st2564 - 85 standard book of " profiled material raditors " which is promulgated by ministry of electronic industry of people republec of china. the radiators are matching heat - radiating components for power semiconductors, generally can be applied to fields of large and small power appliances, hi heat current density utensils, whole - set apparatus, electuonics and electrical devices, etc

    本公司自八十年代初研製生產散熱器系列產品以來,採用國內最先進的生產流水,工藝精湛,其熱阻特性均按中華人民共和國電子工業部標準st2564 - 85 《型材散熱器》規定的檢測方法,百分之百達到設計要求,是功率半導體器件的配套散熱元件,運用於多種大、小功率電器熱流高、整機設備、電子,電器領域。
  18. Experiment shows, as the optimization of this paper, the speech and security of the elliptic curve cryptosystem is improved in a certain extent, this makes it can adapt to resource limited enviorment such as vpn 、 wireless net and smat cards more

    實驗證明,本文的優化工作,使橢圓碼系統的運行效率和安全性能在一定程上得到了提高,從而使它更適用於vpn 、無網路、智能卡資源受限的應用環境。
  19. This scheme is based on the elliptic curve discrete logarithm, which is one of the mathematic puzzles. compared with other cipher systems, it has shorter length of secret key and grouping in the same security intensity

    該體制是建立在橢圓離散對數問題這一數學難題之上的,和其它碼體制相比較而言在同安全強下具有小得多的秘鑰長及分組長
  20. Thus, solow and other people began to establish the micro foundation of the aggregate product function. this chapter introduces the method of using efficiency distribution to aggregate the micro production function to a macro one and the continuity and integrabel condition of micro production function should meet found by sato

    本章著重對加藤( sato , 1975 )人應用效率分佈的方法實現從微觀生產函數到宏觀生產函數的加總,以及生產能力函數適續性和可積性的條件研究成果進行了介紹,這些都將成為推導總供給函數和總供給的方法基礎。
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