參比變量 的英文怎麼說

中文拼音 [shēnbiànliáng]
參比變量 英文
reference variable
  • : 參構詞成分。
  • : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  1. Gathering fuzzy technique and model - identifying technique to processing research, fuzzy model - identifying technique, a intersecting science, has been come out, which has become hoto in this thesis, based on deeply researching the fuzzy unit - identifying and complete analysis on data of measuring well of the chandqing wushenqi district, the method of constructing self - adapting multi - dimension non - liner subjection degree function has been created without precedento based on the extraction of routine measuring well character parameters, and for adopting self - adapting method to carry through character compression, the model has been improved the performance and enhanced the convergence speed and sorted precision of the algorithm o the relation of measuring well information and the oiliness & gassiness of sandstones is fuzzy ? in the thesis, the law of max subjection degree has been studied and improved, and proved preferable effect in the practical application

    論文在提取一些常規測井特徵數的基礎上,採用自適應方法對各多項式進行優選,減少了特徵數間的相關性,突出了類別間的差異性,從而優化了模式的質,提高了分類的精度。測井信息和砂體的儲集性之間的關系是帶有模糊性的,論文對模糊「最大隸屬原則」進行了研究和改進,並在實際應用中取得了較好的效果。論文成功研製了「自適應」的演算法和軟體? ?即通過對正確回判率的較,然後對數進行調節的辦法,可將模式「訓練」到最佳狀態。
  2. In different in terne die travel, the metal flow characterize in warm extrusion forming processes and the affection for the flow of metal stage which made by the difference between the blank bottom altitude and the axial direction limiting size in warm extrusion forming technique have been analysed we have gotten the equivalent strain field and the velocity field and other field variable that the blank in different in terne die travel and the die travel - load curve. at the same time, we have analyzed the contributing factor for the oil pump stator forming process optimized and achieve thereasonable die parameter for the war m extrusion forming finally, the optimized technics parameters were used into pilot production, then the qualified oil pump stator forging were produced, the analog results were compared with those of pilot production

    論文具體分析研究了不同成形工藝過程中金屬流動的特點,並對不同凸模行程下溫擠成形過程中的金屬流動特點、坯料連皮厚度(底部高度)與溫擠壓成形工藝中的軸向界限尺寸的差值對金屬形階段的影響進行了分析,獲得了坯料在不同凸模行程下的等效應場、速度場等場及凸模行程-載荷曲線,同時對油泵定子成形過程的影響因素等進行了分析,優化並獲得了合理的溫擠成形工藝及模具數。最後,利用模擬優化獲得的各項工藝數進行生產實驗,得到實際生產出的合格油泵定子件,並將模擬結果與生產實驗結果進行較。
  3. Only when it takes humidity ratio h / ? as independent variable instead of absolute humidity h in researching and calculating the influence degree of the humidity on the discharge voltage, the emendation coefficients of relative air density and humidity can be independence, and can reflect the influence degree of atmospheric parameters on outer insulation discharge voltage actually

    當以濕h代替絕對濕度h為自研究和計算濕度對放電電壓的影響程度時,相對空氣密度校正系數和濕度校正系數才能相互獨立,才能真實地反映大氣數對電氣設備外絕緣放電電壓的影響程度。
  4. Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running

    本設計針對國產中、小型電站鍋爐燃燒系統數時、嚴重非線性、干擾因素復雜、耦合嚴重、模型不易確定的特點,提出多協調控制方案,解決了系統可控性差,難以實現穩定自動運行的問題;在此基礎上,改以往以煙氣含氧控制送風的傳統模式,針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重,煤種混雜、成分不穩定、燃燒發熱值低、燃燒效率不高等問題,應用智能控制理論中的模糊控制技術,結合自尋最優控制的思想,設計了一種模糊自尋優控制器,應用在電站鍋爐送風控制系統上,並闡述了動靜態兩種實現途徑,通過在線優化風煤配,實現最佳經濟燃燒,切實保障了鍋爐的經濟運行。
  5. A optimizing model of port construction scale is established in the thesis and the variants in the model are selected scientifically and suitably based on analyzing the each factor to influence the freight cost which occurs in transportation system. according to the model trait, every variant meaning and mutual relation between variants hi the model, the restriction condition of optimizing scale for port construction is educed, a simpler method which is called " climb hill " method is used to find the optimizing solution and corresponding computer program is developed

    分析研究了運輸系統中各種費用項目對貨物轉運費的影響程度,科學合理地選取費用項目,建立了港口規模優化模型,根據模型的特點和各的物理意義及其相互關系導出了港口最優規模必須滿足的條件,給出了利用相對較簡單的「爬山法」尋求最優解的方法,研製了相應的計算程序。
  6. Compared with a delta wing aircraft, the double - delta wing configuration has better aerodynamic performance at high angles of attack. an operational analysis was introduced as a method for evaluating training effectiveness of trainer aircraft. approaches to the engineering estimation of aerodynamic characteristics for aircraft with a double - delta wing configuration were studied, and the procedures for determining aircraft performance indices formulated. taking training effectiveness as the objective function and geometric parameters of the wing platform as design variables, through a numerical multivariate optimization arithmetic, the conceptual design optimization for a certain fighter trainer aircraft with double - delta wing configuration was carried out under the constraints of tactical and technical requirements and interrelated geometry. agreement of a calculation example with engineering practice indicates that the optimal design has higher training effectiveness than the baseline design, and in addition, improves the structural force - bearing conditions

    雙三角翼氣動布局三角翼飛機具有更好的大攻角空氣動力特性.引入了評估教練機訓練效能的作戰分析法,研究了雙三角機翼布局飛機空氣動力特性的工程計算途徑以及飛機性能指標的確定方法.以訓練效能作為目標函數並選取機翼平面形狀的幾何數為設計,採用多數值尋優方法,在戰術技術指標及相關幾何約束條件下,對某高級教練機的雙三角機翼氣動布局方案進行了優化選擇.算例表明最優方案不僅原準方案具有更高的訓練效能,還改善了結構的受力情況,與工程實踐吻合
  7. Besides the design of the hardware construction for shape meter, the software system written in visual basic 6. 0 is also developed. the real - time data acquisition and conversion system worked in interrupt mode is accomplished by means of loading dynamic linkage library of pcl - 812pg enhanced multi - lab card. the converted data processing will be operated then, for example, scale operation, comparison, graphic display, data storage, etc. the adjusting values for the shape control are also calculated in it

    本文在考大帶材標準板形、軋制初始設定、調節計算研究的基礎上,確定了標準板形模型、設定模型、調節控制模型等數學模型;並給出了其相應的演算法;完成了板形儀計算機控制系統的硬體設計,並在此基礎上,應用高級開發語言visualbasic6 . 0 ,通過加載pcl - 812pg多功能數據採集卡的驅動程序后,調用動態鏈接庫( dll )中的函數的方法,完成了信號中斷方式下的實時數據採集,採集的數據經計算機作標度換、對、圖形顯示、存儲等處理,並提供了用於板形閉環控制的調節
  8. With the using of microsoft visual basic 6. 0, a multimedia computer - aided design system of small type pumping irrigation district is developed in this paper. provided with the live multimedia messages as well as a good man - machine conversation mechanism, this system can help the user to finish the planning of an pumping irrigated area such as the layout of canal system, the selection of pump models, the establishment of the irrigation program, the calculating of canals " parameters, the estimate of the project magnitude, the selection of the field constructions, the economic analysis of the project, the output of results, etc, a new oo ( object oriented ) programming method is adopted in this system, various softwares are integrated in this systems as well by the " automation " technic provided by vb, in addition, the multimedia technic is applied to this system for the first time, it makes the system easy to ope rate. as for the optimization of the canals " section, a new optimization method is adopted based on the existing theories about the canals " section, and in this way, with the purpose of minimizing the project ' s investment as well as a stalized canal, limited by the longituding slope, the canals " best feasible parameters can be deduced. furthermore, a integral method to reckon the earth work is developed in this paper, by this way, the estimate precision of the earthwork is enhanced notably. this paper includes the particular illumination for the developing procedure of each systems " segment, and in the end, the directions of the system are demonstrated in a sample area which lies in the zhaija village, taizhou city, jiangsu province, the running results showed that the initial purposes are achieved effectively, and it has a preferable practicability

    在渠道縱橫斷面優化方面,本文在利用已經較成熟的縱橫斷面優化理論的基礎上,提出以工程總費用最小為目標函數,以渠道縱坡i為控制,以渠道不沖不淤流速及灌區允許地面降為約束條件,通過縱橫斷面聯動優化的方法得到渠道的最佳工程可行的斷面數。另外,針對部分地區的取土困難的狀況,本文採用積分法計算渠道工程土方,從而大大提高了土方的估算精度,有助於準確控制工程投資規模及資金投向。本文詳細闡述了該系統所採用的編程方法、系統構成、系統各組成模塊的開發過程以及灌區規劃所採用的優化方法及原理,最後應用本系統對泰州市翟家村機電灌區進行規劃設計,運行結果證明其操作較簡便,界面友好,運行速度快,規劃成果合理,基本達到了系統預定的要求,具備較強的實用性。
  9. Based on the summary of the existing academic achievements and analysis of their disadvantages, this paper puts forward two variables that franchisors and franchisees take into account when they are determining whether to join the franchising system. to be specific, on the basis of these two variables, franchisors will choose the ratio between company - owned units and franchised units, while franchisees will determine whether to join the franchising system or start up from the ground. in this way, a decision model on the two parties ’ decision making is build up

    本文在總結前人現有研究成果並分析其不足的基礎上,提出特許雙方在是否採用(或與)特許經營這一問題上的決策過程中主要考慮的是系統風險和交易成本,即特許方根據這兩個因素確定特許體系中加盟店和直營店所佔的例;而加盟方則根據這則兩個因素決定是加盟特許體系還是自主創業,並據此建立特許方和加盟方決策模型。
  10. The new algorithms for classification of mpsk, mask and mqam signals using cumulant invariants are proposed in gaussian noise and ideal communication channel environment. the new classification features are blind to unknown snr and reference phase

    提出了在高斯噪聲和理想通道環境下,基於高階累特徵的mpsk 、 mask和mqam信號調制分類演算法,新特徵對信噪和未知的考相位數是盲的。
  11. 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為自的生物質能預測經驗公式,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方便; ( 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式建立了生物質熱解反應動力學微分方程,並採用goast - redfem積分法和p函數對其動力學數進行了求解,解析出各種生物質的頻率因子和活化能數,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程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,綜合運用工程力學、工程材料、機械設計學原理,推導、建立了轉錐式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 )提出了轉錐式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方法及臨界轉速理論等。
  12. The best dosage of dispersant and disperse medium, and the best time of ultrasonic disperse. secondly, the bp neural network process parameters model which describes the relationship between the important process parameters of the preparation of superfine quartz powder and the important evaluate guidelines was built, based on experimentation data. the forecast of the important guidelines was achieved with this model

    其次,本文以試驗數據為基礎,基於bp神經網路建立了球磨法制備超細石英粉體的關鍵工藝數(轉速,時間,裝樣率,料球)與粉體的關鍵評價指標(中值粒徑,粗端粒徑,均勻性系數)之間多目標多的bp網路工藝數模型,該模型的建立實現了粉石英制備的關鍵指標預測。
  13. The numerical solutions show the integer - coded ga is effective. when number of the discrete value between representation for binary coding and in discrete list ca n ' t be corresponded by one - to - one, integer coding is predominant, and better solutions are achieved under the same parameters. in chapter 5, ga is applied to configuration optimization of truss with mixed variables and topology optimization of truss with singularity

    通過算例表明,整數編碼的遺傳演算法是有效的,而且在二進制編碼所能表示的離散值個數與的可選離散值數目不能一一對應大連理工大學博士學位論文一時,整數編碼顯示了它的優勢,在相同的控制數下,能夠得到二進制編碼更優的結果。
  14. Orthogonal experimental design method was compared with genetic algorithm for hunting out optimum values, and an optimum method of orthogonal - genetic algorithm testing method that was applicable in greater design variables and unmanageable fit function was presented, and was applied to optimal design of the mechanism and to obtain the optimum scheme of the mechanism ' s geometrical dimensions

    對正交試驗設計法和遺傳演算法的尋優演算法進行分析較,提出一種設計多且適應度函數難求的正交遺傳試驗法的優化方法,將這種方法應用於機構的優化設計中,獲得優化工作空間性能的結構數方案。
  15. Integrating the results obtained by nonlinear fem analysis and structural behavior analysis, with the section shape and rdw being variables, the function for lebr is proposed. 6 all the reinforcement in the specimens, longitudinal bar and transverse stirrup, is of grade hrb400

    基於非線性數值分析及結構行為分析結果,研究了荷載效應負載率的影響因素,並確立了該數以截面形狀和肢厚為自的數學模型,為截面設計創造了條件。
  16. Based on the theory of stochastic finite element, the structural parameters of frame - shear structure including stiffness and mass and damping are simulated to be stochastic variables. by solving recurrence equation of stochastic finite element, the duration curve of mean value and standard deviation of seismic response can be obtained for every floor of frame - shear structure. an analysis is thus given to the effects of independent variation and simultaneous variation of structural parameters on the seismic dynamic response of frame - shear structure. as shown by the results, with regard to frame - shear structure, the effect of variation of strucural parameters on the change of mean value are chiefly the increase of standard deviation of response. variation of stiffness will cause the response of frame - shear structure to variate greatly ; variation of mass shows less effect ; and variation of damping shows insignificant effect. the effects of simultaneous variation of various structral parametres on seismic response are only slightly greater than the effect of stiffness variation alone

    以隨機有限元理論為基礎,將框剪結構的剛度、質、阻尼等結構數為隨機.通過求解隨機有限元的遞推方程,得到框剪結構各層的地震動力響應均值和標準差歷時曲線.分析結構數單獨異,以及同時異對框剪結構地震響應的影響.研究結果表明,對框剪結構而言,結構數的異對響應的均值化影響都不大,主要是增大響應的標準差.剛度的異性將引起框剪結構的響應發生大幅度異,質異性影響稍小,阻尼的異性影響不顯著.結構各數的同時異,對框剪結構地震響應的影響,僅剛度單獨異的影響稍大
  17. In order to obtain the mn - zn ferrite precursor particle which has itra - fme property, the optimum technological condition was obtained through the orthogonal experiments in this paper. in the co - precipitation procession of preparation the leading factors that affect the size of the particle are ratio of the ion concentration ( a ), ph of the reaction ( b ), temperature of reaction ( c ), and aging time ( d )

    本文通過拉丁正交試驗,以粒徑尺寸為考察目標,將離子濃度( a ) ,反應ph值( b ) ,水浴溫度( c )和陳化時間( d )作為四,利用每一進行試驗確定各值,從而確定製備超細錳鋅鐵氧體前驅體粉末的條件。
  18. The results of numerical experiments, using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5, show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state, can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity, but also wind, temperature and pressure are assimilated into the model

    非靜力中尺度數值模式mm5的四維分資料同化系統進行的數值試驗結果表明: 「開關」保持與基態一致,所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似,伴隨模式所計算的梯度值能夠為最小化過程提供較好的下降方向;郭氏降水數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速度; 「開關」的存在也不影響將風、溫度、氣壓和濕結合起來同化對mm5降水預報準確性的提高。
  19. Using the transmission of one class planet gear and two class cylindrical gear, considering the small scaled of the planet gear ’ s transmission and high gearing ratio of the cylindrical gears, each gearing ratio is : i1 = 5, i2 = 3, i3 = 3. 5. based on the given variables in the special work circumstances, parameters of the gear and the structure of the gearing parts was proposed. through static analysis of the high - speed shaft g, the best structure of the shaft was chosen

    採用一級行星加上兩級圓柱齒輪傳動綜合行星齒輪傳動的小型化和圓柱齒輪的大傳動,各級傳動為i1 = 5 , i2 = 3 , i3 = 3 . 5 ,按照所給定的工作環境確定齒輪副數和傳動部件的結構,利用ansys確定高速軸g軸最優結構,並用pro / e軟體對傳動部件進行造型及裝配。
  20. 3. inventory model under uncertainty demand environment, two kinds of service level including unit service level and cycle service level and their relation were studied. the solution to safety factor aimed at minimizing the total cost of inventory was given, therefore, some useable heuristic relation was found by linear regression with simple variable and multi - variables, together with bp neural network methods

    討論了從庫存出發,以庫存成本最低為目標,求得安全庫存的遞推解法,並由此研究了安全庫存因子與數之間的簡化關系,用單和多線性回歸及bp網路方法,較了三種模擬效果,找到可用的簡化模型關系。
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