量比方程式 的英文怎麼說

中文拼音 [liángfāngchéngshì]
量比方程式 英文
quantitative rate equation
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  • : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
  • : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
  • : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
  • : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
  • 量比 : fnc
  • 方程式 : capeta
  1. But as a kind of mature management system, it has n ' t been applied successfully in most of chinese companies. the reasons of that include misunderstanding of science property of overall budget management 、 unfit budget management organization 、 lack of scientific management methods, and another important reason is that most of companies use the traditional building method of budget management system. the traditional building method based on the company ' s existing department functions, keeping the existing management process and work process fixedness, and expressing the department ' s work plan in quantity or currency form as their budget

    然而全面預算管理作為一項較成熟的管理體系,在我國大部分企業卻並沒有得到很好的實施,這其中固然有對全面預算管理科學性認識不足、預算編制工作的組織不到位、缺乏科學的預算管理手段和控制手段等原因外,另一個重要原因是大部分企業在構建全面預算管理體系時使用的是傳統的構建法,即基於企業現有的部門職能劃分而進行的,在保持作業流和管理流不變的情況下,將部門工作計劃以貨幣或數表示出來,即成為公司預算。
  2. By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent

    最後,本文還對絮凝動力學和絮體結構進行了研究,在前人研究的基礎上,針對高分子絮凝黃河泥沙,對絮凝過作了一些符合試驗條件的假設,建立了顆粒碰撞頻率表達,應用了顆粒數平衡,從而建立了絮凝過的動力學生長模型,模型計算結果與試驗數據對表明,二者趨勢一致,在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過中絮體數和尺寸分佈的變化過;對絮體結構的研究中,應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察,將絮體分為絮粒、絮團和絮網三個不同的生長階段,通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體,建立了絮體結構模型,計算得到的模型絮體分形維數基本與試驗中的實際絮體相符,在一定度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。
  3. The first one : fitting together ultimate values of every dimensions in one dimension - chain one by one, educing many equations by itself, calculating results, and comparing these results of close dimension to find maximal and minimal values. the second one : projecting all dimensions on two preestablished axis, then providing the solutions to analyze whether every projected dimensions is increscent or decreasing, and synthesize the effect of every projected dimensions to close dimension, educing many equations by itself, at last calculating the result of close dimension. the third one : according to monte carlo analysis, getting every dimensions " values from every dimensions " tolerances at random time after time, simulating the actual circumstances of mass production using these dimensions, and calculating reasonable results of close dimension economically

    鑒于這類系統在各大中小型企業的廣泛應用與相對滯后的研究水平,本文提出了三種新的能切實地解決目前尺寸鏈計算機輔助分析解算中存在的各種難題的設計案,第一種案將尺寸鏈中各組成環能取的極值組合起來,自動列組,求解每個組合情況下的封閉環尺寸,最後較這些結果,得出封閉環的最大最小值;第二種案將尺寸鏈各組成環向預先設定好的兩個向投影,之後再分析各尺寸環投影分的增減性,並且提供了組成環兩個向上的投影分增減性不一的復雜情況下的解決辦法,綜合組成環各投影分的增減性,然後自動列出組,最後根據各組成環的投影分以及所列的組來確定尺寸鏈封閉環的尺寸;第三種案以蒙特卡洛法為原理,在尺寸鏈各組成環的取值范圍內使用計算機產生大隨機數,模擬實際大批生產中的零件尺寸分佈情況,以更經濟更合理的分析、計算封閉環尺寸。
  4. And finally, with hllc and lax - friedrichs type approximate riemann solver for discretising conservative equations and a nonconservative equation, a simple accurate and fully eulerian numerical method is presented. compared with the numerical results of hll scheme, the hllc scheme has a high resolution for shock waves and avoiding the nonphysical oscillation of the hll scheme

    最後用lax ? friedrichs格及hllc格作為通函數對守恆一維euler型組進行了離散,並將數值模擬結果和saurel的hll格模擬結果進行了較,發現:在兩相流數值模擬過中,相對來說hllc格對激波的解析度最高,結果最穩定,避免了hll格在間斷處的非物理性數值振蕩。
  5. Thirdly, an ideal satellite orbit is simulated, and on this foundation, we establish some typical simulation and testing circumstances. lastly, after simulation in the simulation and testing circumstances, we compare the performance of ukf and ekf. and then, based on the outdoor experiment of the vehicle, an analysis and contrast between our simulation results and commercial data process software is carried out, and the conclusion is obtained

    首先在第三章提出的目標運動模型的基礎上建立了系統狀態;其次簡要分析了衛星導航系統中的各類誤差,建立了基於偽距觀測的系統觀測模型;第四節利用yuma格歷書數據模擬了未受攝動影響的衛星軌道,並在此基礎上建立了幾種典型的動態模擬測試環境;第五節為模擬分析和較,先對ukf演算法和ekf演算法在動態模擬測試環境中進行了模擬較,然後針對外場試驗,對非線性濾波獲得的定位結果與商業軟體進行了分析較,並得出結論。
  6. The content including : ( 1 ) combined with the powerful matrix operation function and the abundant function computation of matlab, a load flow program is developed. due to the deeply research of admittance matrix, jacobian matrix and correction matrix, this program has a great advantage at both speed and code

    其主要內容如下: ( 1 )結合matlab軟體強大的矩陣運算功能和豐富的函數計算功能,對潮流演算法中導納矩陣、雅可矩陣以及修正求解的實現進行了深入研究,開發出一種速度和代碼都具有明顯優勢的潮流序。
  7. In this paper, high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed. based on this, a new weno difference scheme which based on dispersion - relation - preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition, weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations, so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy

    本文研究了高階精度加權基本無振蕩( weno )格及其在雙曲守恆律中的應用,在此基礎上作了兩個面的工作:一是針對高頻聲波問題構造出一種基於保色散關系( drp )的weno有限差分格,並對計算氣動聲學( caa )問題的代表性算例進行了大數值實驗,較了該格捕捉波數的能力;另外,針對高階weno格在處理euler的接觸間斷時精度有所降低的問題,研究了利用界面追蹤技術levelset法和高階激波捕捉weno格相結合的一種守恆追蹤法,並且給出有代表性的密度滑移面問題的算例,得到一致高階精度的數值模擬結果。
  8. According to eigenvalue equation ( general formula ) of the energy method of the plane steel frame structure stability, and considering the restriction of the end of the column of the main steel frame and function of deflection curve gained from the differential balance equation general resolution, we get the equation for calculating the length coefficient of the main frame structure stability of the steel arch gate and the resolutions are also given

    根據平面剛架穩定性能法特徵值(通) ,考慮弧形鋼閘門主框架柱的柱端約束的特殊情況,求出撓曲線函數(試解函數)通解,得到弧形鋼閘門主框架柱穩定性計算長度系數。其中弧門主框架主橫梁形框架的臨界荷載較現行規范推薦的有限元法簡單便、結果精確及物理概念明確等優點。
  9. The measure module has bigger signal - to - noise ratio because adopting instrumentation amplifier, programmable gain amplifier and accumulate measurement

    信號檢測模塊採用儀表放大、控制增益放大、積累檢測等措施有效地提高了測系統的信噪
  10. By use of the relationships between the hermite polynomial and the laguerre polynomial, the eigenequations of one - dimensional harmonic oscillator and hydrogen atom are conversed into the same equations in form. therefore the relationships between energy levels and wave functions of one - dimensional harmonic oscillator and hydrogen atom are found. through the coordinates transform, the relationships between energy levels and wave functions of two - dimensional harmonic oscillator and hydrogen atom are found

    首先綜述了諧振子與氫原子的基本理論的研究現狀,並在此基礎上對諧振子與氫原子的關系展開了研究,通過厄密特與拉蓋爾的相互轉化,將一維諧振子與一維氫原子的本徵值轉化為相同形,從而較得出它們能及波函數間的關系,並通過坐標變換將直角坐標系下二維氫原子的本徵值轉化成與曲線坐標系下二維諧振子的本徵值相同的形,從而得出二維氫原子與二維諧振子的能及波函數的關系。
  11. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault , researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system , a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows : this paper compared some existing methods in excitation control , fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 , indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which , discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations , made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations , which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations , there were several very important parameters of power system - - rotor angle ( ) , rotor speed ( ) , generator q axis voltage ( eq ) , transient voltage ( e ' q ) , active power ( pe ) , mechanical input power ( pm ) , valve opening ( ) , generator terminal voltage ( vt ) , based on the model , nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault , which achieved better postfault regulation compared with another two routine methods , one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上,詳細介紹了dfl理論,通過較闡明了dfl理論其本質是逆系統法的一類,並結合具體課題推導出的模型將dfl理論進行了擴展,使之適應于電力系統這個強非線性對象。通過參考大的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型,此模型涵蓋了電力系統中特別引人注目的幾個- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ,在此基礎上建立了實用的電力系統簡化的數學模型,並將擴展的dfl理論應用於此模型系統,結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器,通過模擬實驗與採用常規的按電壓偏差進行調節的勵磁控制器+汽門例控制及採用常規的按電壓偏差進行調節的勵磁調節器和基於二次型性能指標設計的最優快控汽門(考慮發電機的飽和因素)進行了對,證實了採用此種控制器可以有效地提高電力系統的暫態穩定性,並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  12. The results show that compared to salix psammophila barrier, ecomat cover does decrease surface sand transportation rate ( sstr ), increase surface soil nutrient, and enhance growth of platycladus orientalia to the extent, undoubtedly ecomat is one of surface cover materials for sand - fixation and revegetation ; compared to two other ecomat part - cover types ( banded and chessboard ), the all - cover type can also decrease sstr, increase surface soil nutrient significantly, growth condition of platycladus orientalia, however, is not good as expected, which may attributes to lower infiltration rate of slight rainfall ; as for two part - cover types, chessboard type is better than banded type in increasing of sstr and enhancement of platycladus orientalia growth

    研究結果表明,與沙柳沙障相,生態墊確實可以降低近地表的輸沙率,提高生態墊下土壤的養分含,一定度上提高檸條的地徑和高度,可見生態墊是一種很好的促進流沙固定和植被恢復的地表覆蓋材料;與其它兩種生態墊鋪設(品字狀和帶狀)相,全鋪可以顯著降低近地表的輸沙率,提高其下土壤的養分含,但檸條的生長狀況卻略差,這可能與全鋪降低了小雨入滲的可能性有關;就兩種部分鋪設的而言,無論從降低近地表的輸沙率還是促進檸條的生長土來看,品字狀都明顯優于帶狀。
  13. The convective term is solved by ausm + ( a sequel to ausm which means " the advection upstream splitting method " ). the 7 species 8 steps model and 7 species 7 steps model of hydrogen / air is used in the hydrogen reacting flowfield, the 9 species 5 steps model of methane, the 10 species 10 steps model of ethane and the 10 species 13 steps model of kerosene are used in the hydrocarbon reacting flowfield, the results of the distributions of velocity, mach number, pressure, static temperature, total temperature, species mass fraction and the combustion efficiency are gained, and the numerical results of the pressure of hydrogen and methane are compared with those of the experiment

    計算中通項採用ausm +通分裂格,氫反應流場採用氫/空氣的七組元八模型和七組元七模型,碳氫反應流場採用甲烷的九組元五模型、乙烯的十組元十模型和煤油的十組元十三模型,得出了超燃發動機燃燒室流場的速度、馬赫數、壓力、靜溫、總溫和組元質分數分佈及燃燒效率等性能參數,其中氫和甲烷的計算壓力分佈與實驗結果進行了較。
  14. In chapter 3, we give an equivalent form of semi - infinite programming, and a locally convergent ssle method is proposed for sip. we only need solve a linear system equations and a subproblem with a parameter per step, also a modified algorithm which saves cost of computations is given, at the end of the paper, we give a proof of the convergence for the algorithms

    第三章通過適當的變形,得到半無限規劃問題的一個等價形,並給出一個局部收斂的序列線性組演算法,這個演算法在每一步,只需求解一個線性組和一個帶參數的非線性子問題,證明了演算法的收斂性,同時,給出了一個修正演算法,與前面演算法相較,修正演算法節約一定的計算,同樣具有較好的收斂性。
  15. In the second part, when a four - dimensional smooth system has two distinct pairs of purely imaginvalues at the equilibrium y = 0, the 5 - order normal form is given

    第二部分,通過復變替換和較系數,在平衡點y = 0處,當特徵根為兩對純虛根時,本文給出了一般的四維非線性微分的直到五次的規范形具體形
  16. Energy conservation and and reformation of power plants " heat installation affect a lot on the efficient performance of opertion of power plant. pump and fan take a large proportion in power plant and resume much electric energy. so there is much energy conservation pationlity in them. and we should have strong tools and theories " support to reform them. we can combine the theory modeling and engineering design manufacture by the bussiness software such as fluent. in order to take full advantage of the powerful function of fluent and increase absolutely its conveniece and interaction, we should develop fluent secondly. this paper puts the idea firstly demostricly to substitute the performance test of pump and fan to get the integrative system of the optimization and computer aid design, and so we can increase greatly of the efficiecy and quality of the facility reformation. the main idea about the secondary development of fluent in this paper is based on the secondary development of gambit, the modeling and meshing s oftware of fluent, and simplify the modeling and meshing of gambit. meanwile, the data management base on web browser kind is adopted for the convenience of optimization and parameterization, and the journal files createdly recently can get new medeling and meshing files that can be used by fluent. so the designer can focus on the computer scheme and the result analysis without care the fussy designing and optimiziation. so we can increase greatly the optimization efficiency

    泵與風機在電廠中占較大數例,且消耗大電能,節能潛力巨大,對其改造需要強有力的工具和理論支持,用商用cfd軟體如fluent可實現泵與風機改造中的理論模擬與工設計製造間的結合。為了充分發揮fluent的強大功能,又能最大度地提高其便性與交戶性,應對其進行二次開發。本課題在國內首先提出對fluent進行二次開發,替代泵與風機性能試驗,形成一體化的優化、輔助製造系統,可大大提高設備改造的效率與質,其主要思想是基於fluent的cad構體軟體gambit進行二次開發,簡化了泵的構體過,同時,為了優化及參數化便,採用基於webbrowser的數據管理,生成新的記錄文件同時產生新的fluent計算能識別的圖形網格文件,這樣就將設計優化者從繁瑣的圖形設計及優化中解脫出來,專注于對計算案的確定及計算結果的分析,極大地提高了設計優化的效率。
  17. This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

    本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題,主要研究內容有: ( 1 )實驗、測定了20種常見生物質的能(發熱)和c 、 h 、 n元素含,根據實驗結果分別建立了以h和c為自變的生物質能預測經驗公,並通過r _ ( 0 . 05 )檢驗;為閃速熱解液化裝置能轉化率計算和生物質能利用率計算提供了依據和便; ( 2 )選擇了8種生物質試樣作了等加熱速率( 10 min 、 20 min 、 40 min 、 60 min )和恆溫加熱的tg和dtg實驗,根據實驗數據和阿倫尼烏斯公建立了生物質熱解反應動力學微分,並採用goast - redfem積分法和p函數對其動力學參數進行了求解,解析出各種生物質的頻率因子和活化能參數,進而建立了各種生物質的熱解動力學模型,為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述,提供了理論和依據; ( 3 )為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間,在體視顯微鏡下對不同粒度的生物質顆粒的長徑進行了實驗觀察和測定,得出生物質的長徑( l d )一般在5 . 0 6 . 0之間,平均為5 . 3的結果; ( 4 )採用復雜溫度場傳熱學理論對生物質傳熱過及充分熱解時間理論進行了研究,解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間( t ) ,得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果,為閃速熱解反應器固相滯留時間設計和預測提供了理論依據; ( 5 )根據上述實驗結果,綜合運用工力學、工材料、機械設計學原理,推導、建立了轉錐閃速熱解反應器物料滯留時間( )與轉速(或頻率)合理匹配理論; ( 6 )提出了轉錐閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算法及臨界轉速理論等。
  18. In chapter two, according to n - s equation, considering the couple between liquid and solid, the double - fluid model is used to respectively set up momentum equations of two - phase fluids in condition of basic hypothesis, which are general equations of two - phase fluids. simplifying the equations in boundary layer, the momentum differential equations are required and the boundary conditions are given. in the same time, the simplifying equations and their solutions, in which solid grain satisfies in boundary layer

    第二章依據n - s,考慮到液、固之間的相間耦合,在基本假設條件下,採用雙流體模型,分別建立液、固兩相的動,它是固液兩相流體的一般;對其在邊界層流區內進行較,得到邊界層動微分並給出其邊界條件,同時也得到固體顆粒在邊界層內所滿足的簡化及其解的表達
  19. The dissertation ' s main research content is to establish the metrology transfer standards on naturalgas flux. the task team aimed at the characters of the pvtt and mt methods for the naturalgas standards founded by native nation for the presents. for the purpose ofgaranting the accuracy of the values of quantities of the standards, reling on the measure process control methods, analyzed the present situation and the metrology capability of the naturalgas standards of measurement, analyzed and calculated the metrology methods and uncertainty of the transfer standard, analyzed the site experiments and the testing data

    本文主要研究的內容是建立天然氣流傳遞標準,課題組針對目前國內建立的pvtt法、 mt法等天然氣計標準裝置的特點,以保證天然氣流標準裝置值準確為目的;以測控制制法為依據,對天然氣流標準裝置的現狀和計性能進行了分析;對傳遞標準的計法和不確定度進行了分析和計算;對傳遞標準的硬體和軟體進行了研究和設計;對傳遞標準進行了現場試驗和數據分析;達到了利用傳遞標準對天然氣計標準裝置進行現場對和分析,進而保證計標準裝置值頭準確的目的。
  20. This paper systematically analyzes the environmental effect of the ebinur lake area dynamic change and its influence on the railway along the lake, and the research establishes water balance equation of the ebinur lake, chooses the two characteristic phases, 1991 1992, 1998 1999, for computing, and concludes that since 1990s, water storage whether in low water period or in high water period is less than that of 1960s, whose lake area was 800km2, and this area basically can reach the target of optimal eco - environment benefit

    本文系統地分析了艾湖湖面動態變化的生態環境效應及其對沿湖鐵路線的影響。並通過艾湖水平衡的建立,選擇1991 1992年(枯水時段) 、 1998 1999年(豐水時段)兩個特徵時段進行計算分析,得出20世紀90年代以來,不論是枯水時段儲水,還是豐水時段儲水,均小於20世紀60年代湖泊水面保持800km2所需水,而此水面基本可以達到湖區生態環境效益最佳的目標。
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