流體加速度表 的英文怎麼說

中文拼音 [liútǐjiāsùdùbiǎo]
流體加速度表 英文
fluid accelerometer
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 體 : 體構詞成分。
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 表 : Ⅰ名詞1 （外面;外表） outside; surface; external 2 （中表親戚） the relationship between the child...
  • 流體 : [物理學] fluid; fluor流體力學 fluid mechanics; hydromechanics; 流體生物學 hydrobiology; 流體運動學 hydrokinematics
  1. Abstract : the formation technologies, the structure and properties of tcs microporous man - made yarn - kind new polyester fibre which was spinned in tcs with some micrometallic - oxide have been studied. the results indicate that the rheological behaviour and spinnability of commixed polyester melt, and the structure and properties of the fibre, are relative to the spinning temperature, melt pressure, microporpus size for spinning, formation conditions, thermo - vascellum temperature, thermo - vascellum position and rolling speed, besides the viscosity of polyester cuts, coacervation particles, adding amount and size of micrometallic - oxide

    研究表明， tcs微孔化共混聚酯熔體在成型加工中的流變行為和可紡性，及其纖維的結構性能除了與原料切片的特性粘度、凝聚粒子和共混聚酯中超細金屬氧化物微粒的添加量、粒徑等因素的影響有關外，還與紡絲溫度、紡絲熔體壓力、噴絲板微孔尺寸、冷卻成形條件、熱管溫度、熱管安裝位置以及卷繞速度等因素的影響密切有關。
  2. The result indicates that, in the course of the rainstorm in huoshan, there are obvious low - level jet of great intensity, infection of mesoscale shear line, enhancement of plus vorticity which increases intensity of convergence, improves ascending velocity and brings on precipitation, and quick enhancement of helicity which provides the basis to forecast, in addition, convergence of moisture flux and analyzed potential vorticity which reflects baroclinic convective instability sufficiently indicate the characteristics of the rainstorm

    結果表明：此次霍山暴雨發生前後，存在明顯的大強度低空急流，並受到中尺度切變線的影響，而且正渦度的加強引起了輻合加劇，提高了上升速度從而引起降水，同時暴雨發生前螺旋度的迅速增強，也為預報提供了根據，另外水汽通量的輻合以及分析位渦反映出的斜壓對流不穩定都充分體現了這次降水的特點。
  3. The results show a few grooves appear on the worn surface of the composites which contain 10 phr nano - al2o3 there are a great many grooves on the worn surface of the composites containing 20 phr. in addition the deeper cracks also appear. this shows that excess nano - al2o3 particles ca n ' t improve wear properties of pa6 ' s. the proper content of nano - al2o3 in the matrix can enable the molecular chains of pa6 to produce closed joints which resemble the physical crosslinking

    尼龍6 / a12o :復合材料的加工性能研究表明:隨著納米a12o3的加入，復合材料的熔體流動速率下降，納米a12o3含量越大，下降越明顯，即隊6 / a12o3納米復合材料的加工性能越差;隨著納米a12o3的加入，復合材料的轉矩和塑化時間都增加，當含量小於巧phr時，隊6復合材料的轉矩增加幅度不大，當含量超過15phr后，轉矩急劇升高。
  4. Quinic acid, used shikimate pathway in e. coli, it is necessary to extend metabolic pathway by introduction of a heterogenous gene qutb into the host cell. double specific enzyme genes arog, qutb or three ones arog, qutb, arob were co - expressed in a single plasmid pbv220 to improve the enzymes " rate - limiting reactions. modifications of e. coli chromosome by both disruption of the arod gene and directed - site insertion of the arob gene resulted in the change of carbon flow redirected into the quinic acid biosynthesis branch

    利用大腸桿菌莽草酸途徑合成新的代謝物奎尼酸，須在宿主細胞引入異源酶基因擴展代謝途徑；串聯表達酶基因，同時適量增加不同種屬的多個關鍵酶酶量，改善限速反應；利用同源重組進行基因整合和基因破壞，改造染色體結構定向改變微生物代謝途徑；目的是將碳代謝流最大程度的引向奎尼酸生成的方向。
  5. The experimental results showed that incipient boiling point decreased with increasing fluid subcooling and was independent of other factors, and that temperature overshoot enhanced with decreasing jet velocity and fluid subcooling

    結果表明：沸騰起始過熱度隨液體過冷度增加而減小，與其他因素無關，而溫度過頭值則隨射流速度和液體過冷度減小而增加。
  6. To avoid manual labor of chiseling - grossness, in the area of second - stage concrete construction, permanently non - removed metal molding boards nets are used as molding boards of first - stage concrete. substitution joints of reinforcing steel bars for traditional electric welding and usage of equipments for joints of reinforcing steel bars efficiently improve strength of junctions and rate of connecting reinforcing steel bars, and safety of construction and stability of quality, and greatly reduce cost. it ' s possible that three gorges project become top - ranking project in the world by study on systems engineering of high - strength concrete construction

    混凝土縫面處理採用高壓水流沖毛技術，大大提高了施工工效，減少了倉面污染；模板工程大量採用定型鋼模板施工技術，提高了壩體混凝土成型質量和工程進度；在二期混凝土施工區域，為免除人工鑿毛勞動強度，採用永久性免拆金屬模板網作為一期混凝土模板；鋼筋連接改進傳統的電焊連接方式，採用大量採用鋼筋接頭機械連接技術，有效提高了接頭強度和鋼筋連接速度，施工安全性大大加強，質量穩定性有效提高，經濟成本大大降低；三峽二期工程持續高強度混凝土施工系統工程的研究，使三峽工程成為名符其實的「世界一流工程」成為可能；三峽二期工程混凝土溫控綜合技術的應用，有效降低了壩體混凝土溫度的產生；混凝土表面處理及裂縫處理技術的應用，提高了建築物的整體性和耐久性。
  7. 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曲線密碼體制的優點及研究現狀；其次研究了橢圓曲線密碼體制的基本理論；第三，分析了橢圓曲線密碼的安全性並介紹了密鑰共享，加密，數字簽名等橢圓曲線密碼體制；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等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曲線密碼體制時參考；第五，研究了目前流行的計算橢圓曲線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度，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的橢圓曲線密碼體制的演算法庫，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等橢圓曲線密碼體制；第七，實現了兩條安全橢圓曲線上的橢圓曲線密碼體制，包括ecdh ， eces ， ecdsa 。
  8. A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method

    提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求，選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化，再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法，通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍，以速度調節器和電流調節器的參數為染色體中的基因，通過遺傳演算法在搜索范圍中優化這些基因，獲得優化解.實驗結果表明，所設計的參數能使系統性能指標有顯著提高
  9. Numeric simulation is done based on 30mev linac structure and the corresponding parts " parameters. the simulate result shows that the design of beam line is reasonable. the beam properties change very small when the drifting distance before the first acceleration stage is changed in the certain ranges

    根據30mevlinac結構和元件參數進行了整體的數值模擬，模擬結果表明： 30mevlinac中各個加速段的結構與性能較好，輸出束流的發射度和能散度都較小，束線的設計也較合理。
  10. The result of analysis shows that the convective heat flux has main effect on fuel pyrolyzing and vaporizing, the liquid layer of pe fuel can increase the regression rate but also can cause unstable burning. 4

    研究結果表明：對流熱流是引起燃料熱解氣化的主要因素， pe熔化產生的液體層提高了燃料熱解退移速率，但液體層厚度增加到一定程度時，對發動機工作穩定性有負面影響。
  11. The thesis emphasis the way and arithmetic of the key equipment of walking reheating furnace : loader machine, unloader machine, walking system, series transfer roll, control system of burning and tracking of steel billet, . make use of the system, we can carry out the function of transferring measuring and weighting, detecting, loading and unloading tracking the steel billet, we can control process of burning and exchange data each other to track the steel billet and manage the process over all of product line. goals of reheating furnace ' s producing process such as high yield, low consuming and pollution, automatic operating mode are achieved

    本文著重研究了步進式加熱爐關鍵設備如：裝鋼機、出鋼機、步進梁、爐前爐后輥道、燃燒控制、板坯物流跟蹤等控制對象的具體控制軟體流程、速度控制曲線、行程計算等具體控制策略和演算法，完成了攀鋼1450熱軋加熱爐基礎自動化系統（ l1 ）和熱工儀表的一級控制，實現板坯輸送、測量、裝出料、物流跟蹤、加熱爐燃燒控制以及板坯庫的數據信息交換，通過plc和二級計算機系統進行順序、定時、聯鎖與邏輯控制，實現了操作自動化與物料系統的全線跟蹤管理。
  12. Refined grids were utilized in a large - eddy simulation model for obtaining high - resolution planetary boundary data and analyzing surface layer turbulence. simulation results showed that refined meshes reduced turbulent contributions of subgrid scales, sensitivity of simulation results to sgs parameters decreased, and features of the whole boundary layer were explicitly resolved better. results also revealed flux - profile relationship correctly in surface layer and a good agreement of turbulent velocity characters with observation. therefore, it concluded that the les method was able for simulation of surface layer flow and turbulence, and might be used for further applications

    採用加密網格的大渦模式獲取邊界層風溫場的高解析度模擬結果，並據以分析近地面層大氣的湍流特性。結果表明，較小的網格尺度使次網格湍流貢獻率大為降低，模式計算結果對次網格參數的依賴性減小，邊界層整體特徵得到更好的反映。同時，模擬出的近地面層通量廓線關系及湍流速度特徵與實際觀測結果吻合甚好，表明模式具有反映近地面層平均運動和湍流特性的能力。
  13. The tingjing group is in putting into effect the course of mrpii system, a mrpii does not only regard one set of software to come to popularize and is regarding a management model to recommend ; by way of mrpii system and computer network, each department and post can be covered by the system on universal ground a staff can get any information that relates with oneself vocational work by way of the cross - domain communication at any time, gain the various policy decision supports of real time quantification, carrying on operation process imitates, not only can quicken the rate of progress planning the work such as formulation and cost accounting etc greatly, and still economize that the report form and data shortened whole vocational work period in the delay that the difference function circulated between the department, and retrenched the personnel of work, and raise the efficiency managing work conquer the solid foundation for business process reengineering ( bpr ), takes mrpii as the foundation, bpr has been in progress in the company and builded performance " s evaluation system

    引入mrp管理系統是提高管理水平的一個有效途徑。天健集團在實施mrp系統的過程中，不是把mrp僅僅作為一套軟體來推廣而是作為一個管理模式來引進的；通過mrp系統和計算機網路，各部門和崗位可以普遍地被系統覆蓋，員工通過網路隨時可以得到與自己業務有關的任何信息，取得實時量化的各種決策支持，進行業務流程模擬，不僅可以大大加速了計劃制訂、成本核算等工作的進度，還節省了報表、數據在不同職能部門之間流通的延誤，縮短了整個業務周期，精簡了事務性的人員，提高了管理工作的效率。還為實現組織的扁平化提供了條件，為流程重組打下了堅實的基礎。
  14. The submarine structure is simplified to single or double infinite cylindrical shell stiffened with rings, bulkheads and stringers, focusing on underwater sound radiation from the single shell. the shell motion is described by donnell ' s theory including excitation forces and reactions of rings, bulkheads, stringers and fluid, which leads to the fluid - structure coupling vibration equation. expressing displacements by velocities, applying modal expansion circumferentially and fourier transformation longitudinally result in the shell ' s modal equations of motion

    殼體的運動方程採用較為簡單的donnell理論描述，運動方程中包括了激勵力、加筋結構（環肋、艙壁和縱骨）和流場對殼體的作用力，從而組成流場-結構的耦合振動方程，並進一步將方程中的位移用速度表示，然後沿軸線方向進行fourier變換，將速度和各項荷載沿圓周方向進行模態展開，得到了殼體振動的模態運動方程。
  15. This paper presents the effects of some features on the productivity of raw c60 materials, such as distance and approaching speed of electrodes, helium partial pressure and arc current etc. then we separate and purify the raw materials and obtain pure solid c60 of 99. 9 % and compare the purification efficiency and effect of different fluxion phase and fixed phase and discuss the effects of the experimental conditions, such as the depositing speed, the type of the substrate, the surface structure of the substrate and the temperature of the substrate. finally, we use xps, afm, ultraviolet, infrared and raman to analyze the component, structure and feature of the films qualitatively and quantitatively

    本文首先研究了氦氣分壓、弧電流大小、電極間距以及電極推進速度等實驗條件對制備c _ （ 60 ）粗品產率的影響；接著選用柱色譜法分離提純得到了純度大於99 . 9的c _ （ 60 ）固體，比較了不同流動相和固定相的提純效率和效果；然後採用自己改進后的真空鍍膜機，利用電阻式加熱蒸鍍方法，得到了純c _ （ 60 ）薄膜和不同摻雜比的銀摻雜薄膜；探討了沉積速率、襯底種類、襯底表面結構以及襯底溫度等實驗條件對薄膜結構的影響；最後通過xps ， afm ，紫外，紅外，拉曼對薄膜的成分、結構和特性作了定性和半定量分析。
  16. Numerical results are obtained for velocity, temperature and concentration profiles, variations of both nusselt and sherwood numbers under different buoyancy ratio and inclination angles of = 15 - 90. at a given inclination angle, heat and mass transfer rates decrease with heat and mass buoyancies and the buoyancy ratio b decrease from high positive values, and then increase again with the buoyancy radio b further decreasing after the velocity and transfer rates reaching a minimum

    研究結果表明：傾斜角度一定，當熱浮力與物質擴散浮力共存且二浮力之比b從較高正值變化到較高負值時，流體速度和熱質傳遞速度從高逐漸變低並出現最小值，此後隨著向下浮力的增大，流體向下流動且隨| b |的增大而加速，熱質傳遞速率隨| b |的增大而重新增大。
  17. The results showed that : total area of soil and water loss decreased after 1987, but area of strong erosion grade increased and new man - made soil and water loss accelerated ; 9 of the total 11 regions in zhejiang showed the same changing tendency as the whole province

    結果表明： 1987年以後水土流失總體上有所好轉，水土流失總面積減少，但強度以上的流失面積有增加趨勢，新的人為水土流失未得到有效控制，且有加速趨勢。
  18. A sub - circuit model for vdmos is built according to its physical structure. parameters and formulas describing the device are also derived from this model. comparing to former results, this model avoids too many technical parameters and simplify the sub - circuit efficiently. as a result of numeric computation, this simple model with clear physical conception demonstrates excellent agreements between measured and modeled response ( dc error within 5 %, ac error within 10 % ). such a model is now available for circuit simulation and parameter extraction

    從vdmos的物理結構出發建立子電路模型，進而導出描述其交直流特性的參數及模型公式.相對以往文獻的結果，該模型避免了過多工藝參數的引入，同時對子電路進行了有效的簡化.在參數提取軟體中的加載結果表明，該模型結構簡單，運算速度快，物理概念清晰，擬合曲線與測試數據符合精度高（直流誤差5以內，交流誤差10以內） ，適于在電路模擬及參數提取軟體中應用
  19. Abstract : a sub - circuit model for vdmos is built according to its physical structure. parameters and formulas describing the device are also derived from this model. comparing to former results, this model avoids too many technical parameters and simplify the sub - circuit efficiently. as a result of numeric computation, this simple model with clear physical conception demonstrates excellent agreements between measured and modeled response ( dc error within 5 %, ac error within 10 % ). such a model is now available for circuit simulation and parameter extraction

    文摘:從vdmos的物理結構出發建立子電路模型，進而導出描述其交直流特性的參數及模型公式.相對以往文獻的結果，該模型避免了過多工藝參數的引入，同時對子電路進行了有效的簡化.在參數提取軟體中的加載結果表明，該模型結構簡單，運算速度快，物理概念清晰，擬合曲線與測試數據符合精度高（直流誤差5以內，交流誤差10以內） ，適于在電路模擬及參數提取軟體中應用
  20. It is shown that when the exit area of secondary nozzle and the fuel / oxidizer ratio is fixed, the increase of mass flow rate of secondary flow lead to the decrease of velocity of mixed flow, and increase of total mass flow rate. the synthetical result of these two phenomenon cause the increase of thrust of rocket ejector, but the increasing magnitude is relatively small, indicating that these is no necessary to claim large bypass ratio in rocket ejector design. in the comparison between two configurations, the typical one has better performance, indicating the importance of pressure ratio

    結果表明：在固定二次噴管出口面積和氧燃比的條件下，二次流（引射空氣流）流量的增加引起混合氣體出口速度的下降和總流量的增加，二者綜合作用使發動機推力增加，但增幅不大，表明在設計發動機結構和工作參數時，不必過分追求大的引射系數；兩種結構的性能對比分析表明了增壓比對引射火箭性能的提高具有重要意義；對引射火箭的熱力循環分析同樣表明，增壓比對于提高發動機性能非常關鍵。
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