模型精化 的英文怎麼說
中文拼音 [móxíngjīnghuà]
模型精化
英文
model elaboration-
And the deficiencies are pointed out in present researches, such as highway capacity, level - of - service, influence factor of road alignments, etc. from these, it has confirmed that the thesis should be studied from rational analysis, quantitative analysis of level - of - service, impact on capacity of road alignments, setting - up simulation model, etc. the high - accuracy gps dynamic data acquisition appearance is proposed to be used for the first time to carry on the experiment of overtaking on two - lane highways, and experiment scheme is designed according to the driver ' s perceive to judge each overtaking course. based on the experiment data, it can get two important parameters of acceptant gap ? the critical gap of overtakable time headway and returnable time headway through data processing, which can offer the strong support to the research of two - lane highway capacity with qualitative and quantitative analysis. besides, the experiment methods is provided to observe overtaking ratio and to measure the
研究中首次提出了運用高精度gps動態數據採集儀對雙車道公路上的超車行為進行觀測，設計了根據駕駛員感受度來衡量超車過程的實驗方案，並通過後期數據處理得到了超車過程中兩個重要的可接受間隙參數-可超車車頭時距和可回車車頭時距的臨界間隙值，為定性和定量分析雙車道公路通行能力提供有力的數據支持;同時，還提出了觀測超車率的實驗方法以及測量加速度干擾的實驗方案，統一了計算加速度干擾的時間統計間隔，為雙車道公路的服務水平量化研究奠定基礎;最後還簡單介紹了駕駛員問卷調查法和模擬程序中模型參數標定和驗證的數據採集方法。In this paper, ackerman steering linkage of double - wishbone suspension is taken as the study object, choosing the splitting joint and steering lever joint to carry out the design of optimization the mathematics models are established based on the multi - body system dynamics, applying its analysis method of kinematics to study the mechanism kinetic principles owing to more spatial factors considered, and calling off many hypotheses affecting the accuracy, compared with the traditional methods, the models are better to reflect the realistic motion principles, the results are more exact and applicable moreover, the force analysis is applied to the conduct mechanism the analysis method of dynamics in the multi - body dynamics is applied to study the forces applied on every component, working out the constraint reaction force of up and down ball joints, and developing the current computation program in the end, produce the upper wishbone geometry model in the ansys software package, meshing and carrying out the fea, testifying if the intensity of the wishbone meet with the requirements
本文以雙橫臂獨立懸架的轉向傳動機構作為研究對象，選擇對斷開點和節臂球銷的位置進行優化設計，在此基礎上建立了基於多體系統動力學的導向機構和轉向傳動機構的數學模型，運用該學科的運動學分析方法研究機構的運動規律，編制了通用優化設計軟體。由於考慮了更多的空間因素，取消許多影響準確性的假設，因此建立的數學模型與傳統的方法相比更能反映實際運動規律，得到的優化結果也更加精確實用。此外，本文還針對導向機構進行受力分析，在建立該機構的空間動力學模型后，運用多體動力學中的動力學分析方法研究各個桿件的受力，計算出上下球鉸的約束反力，並開發出了相應的通用計算程序。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。The results of test demostrate both estimation and accuracy of solving model achieved satisfactory degree, so that the ballistic trajectory problem can be solved without the firing table
測試結果表明，彈道綜合系數的估計比較準確，而解算模型在精度與實時性上均達到滿意的程度，具有高度通用化的特點，並且使彈道問題的解算可以完全脫離射表進行。In accordance with the problem that the fcm algorithm is quite time - consuming for search out cluster cancroids and may not be suitable for on - line modeling and control. this dissertation proposed an improved fuzzy identification method based multistage random sampling fuzzy c - means clustering algorithm ( mrfcm ). it has higher approximate precision and the cpu time has slowed down sharply compared with the common fuzzy
Johnyen和liangwang介紹了幾種應用於模糊模型的信息優化準則，本論文在此基礎上對統計信息準則進行一些改進，並與快速模糊聚類和正交最小二乘方法結合，提高了模型的辨識精度和泛化能力。Simplified model for distillation tower of air separation unit in igcc plant by comparting method
電站空分系統精餾塔的分段簡化模型Rectification and topology base on stl model is researched, too. the contour information is obtained by using slice technology ; the delaunay triangular meshes are generated by using delaunay triangulation algorithm and conglutinate precision of divided models is insured by using precise orientation technique. in addition, triangle scan is accomplished based on delaunay triangulation algorithm
採用切片技術獲得了截面輪廓，用delaunay三角網格劃分演算法將截面輪廓網格化，用精確定位技術保證了模型粘接的精度；在delaunay三角網格劃分的基礎上，實現了快速原型的三角形掃描。A side stream is recycled to the external feed stream of the column through an equilibrator as an internal feed stream. the simulation results indicate effects on the characteristics of cryogenic distillation column. consideration is given to the behavior and characteristics of the set of ordinary differential equations
3 、分析了濃度極稀物系動態精餾模型的特點，建立了此類物系動態模型的求解策略，通過對模型中狀態變量的轉換，使原本剛性較強的微分方程組轉化為一非剛性的常微分方程組。This paper analyzes the factors affecting the controlling precision of sand compactibility system and sets up the dynamic model of regression coefficient between sand compactibility and water content. to prevent the insufficiency or excess of sand water content, the amount of the first addition is set as 80 % of the total water addition amount. after the first water addition, we adopt ar model to predict the stable value of sand compactibility to shorten the time mixing the sand. each time we add water, the correction coefficient is introduced to adapt to the change in the composition of sand. the experiment shows that the mathematics model not only makes the water content in sand reach the best range within shorter time, but also directs how the sand composition should be adjusted, which can better conform to the actual situation
分析了影響型砂緊實率控制精度的因素，建立了型砂緊實率-水分回歸系數的動態模型.為防止型砂水分不足或過量，將第一次加水量設定為總加水量的80 .第一次加水后，對型砂緊實率穩定值採用ar模型進行預測，以縮短型砂混制時間.每次加水后，引入修正系數，以適應型砂組成的變化.實驗表明，該數學模型不僅使型砂水分含量在較短時間內達到最佳范圍，同時可指示對型砂組成進行調整，能較好地符合實際情況What ' s more, the displacement computed by fem is optimized to better the inversion results by hydrid models. 4. meaningful probe is performed into the abnormal symbols of deformation of the dams with special structures
用插值補點回歸法對有限元計算位移成果進行優化處理，由此提高混合模型反演結果的精度。Collisonal quantum interference ( cqi ) was observed in the intramolecular rotational energy transfer in the experiment of the static cell, and the integral interference angles were measured. to observe more precise information, the experiment in the molecular beam should be taken, from which the differential interference angle can be obtained precisely. in this paper, the theoretical model of cqi is described in an atom - diatom system in the condition of the molecular beam, based on the first - born approximation of time dependent perturbation theory, taking into accounts the anisotropic lennard - jones interaction potentials. the method of observing and measuring correctly the differential interference angle is presented. the changing tendencies of the differential interference angle with the impact parameter, velocity, and et al. are discussed
分子內部轉動傳能的靜態池實驗觀察到了碰撞量子干涉效應（ cqi ） ，並且測得積分干涉角，為了獲得更加精確的分子內部轉動傳能的碰撞量子干涉效應信息，實驗就必須要採用分子束實驗進行.本文理論上採用各項異性相互作用勢，應用含時微擾理論的一級波恩近似，假想在分子束實驗的條件下，建立在原子-雙原子分子體系中碰撞量子干涉的理論模型.理論上推導出微分干涉角具體表達式，通過計算定性地討論了微分干涉角隨著碰撞參數、速率等的變化趨勢，同時初步探討了實驗的正確觀測途徑，得出了採用分子束進行實驗觀測的實驗方法，為進一步進行分子束實驗提供了理論基礎，對實驗的進行起到了一定的借鑒作用11 katoen j - p, langerak r, latella d, brinksma e. on specifying real - time systems in a causality - based setting. lecture notes in computer science 1135, 1996, pp. 385 - 405. 12 fecher h, majster - cederbaum m, wu j. refinement of actions in a real - time process algebra with a true concurrency model
在系統模型的結構表示上，本文擴充了傳統的事件結構，使用一種帶時間信息的捆綁式事件結構來模擬系統行為，在系統模型的語言刻畫上，本文採用的是帶時間的類lotos進程代數描述語言，對于動作精化，我們同樣採用運算元的觀點，將動作精化定義為一個操作運算元。Here are some examples of the requirements specified for this case study : ( 1 ) avoid conflicts among phlebotomist ' s tasks caused by the room layout ( from the hta model and the spatial layout model ), ( 2 ) reduce the number of devices and containers to save space ( from the spatial layout model ), and ( 3 ) improve recording and transferring information accurately to other sections of the hospital ( from the information flow model )
這是在這個案例中的一些特殊需求的例子： （ 1 ）避免在醫師任務和房間內空間規劃上發生沖突（從hta模型和空間規劃模型得出） ， （ 2 ）減少設備和容器的數量以節約空間（從空間模型） ， （ 3 ）改進記錄和精確的轉化信息到別的地區的醫院（從信息流模型得出） 。The experimental results show that if such technology parameters as the baking speed, wall thickness, and sl pattern thickness are suitable, or the size of sl pattern in one direction gets very small, shell can be prevented from cracking during baking process
研究結果表明：採用樹脂制備方法，不僅可以簡化傳統製作蠟模的工藝步驟，而且大大縮短了製作周期；樹脂模型精度、粗糙度對復雜鑄件的傳遞特性，己成為該方法被廣泛應用的一個重要的前提條件。Secondly, he establishes a rule table of vehicles " behaviors based on analyzing them. the table can simplify the model of vehicle ' s following and lane changing so that it will shorten the time of simulation. and thirdly, by using the cache technology of level - two time cell, the author solves the conflict, which arises from the limited memory and the masses of cache that is needed to get the better precision in simulation
本文在系統設計中，用匝道控制和主線控制相結合的方法，進行高速公路全線交通的綜合控制，優化控制效果；根據車輛行為分析，建立了車輛行為規則表，將車輛跟馳模型和換道模型簡化為車輛行為表，減少了模擬時間；採用二級時間片的緩沖技術，解決了模擬過程為達到較高模擬精度所需的大量緩存與有限內存空間的矛盾。To quicken convergence and improve model precision, a new algorithm is presented in this paper, which utilize construct orderliness property of self - organization feature maps ( sofm ), divide system input space and adopt 1 order or 2 order local model in each subspace individually instead of a global model
為了提高收斂速度和模型精度，本文利用自組織映射網路拓撲有序特性，對系統輸入空間進行分割，在子空間中採用多個局部一階線性模型或二階模型代替全局模型的局部化方法。The empirical result illustrates that we can simplify the single rule and reduce the number of rules through the gmm method. we can also solve the noisy problem in the practical application effectively
實驗結果表明，採用gmm模型簡化決策樹規則，既能簡化單個規則，又能減少規則的總數量，更能排除數據中噪音的干擾，提高規則的分類精度。Impact of chlorine dioxide disinfectant spray on the dimensional precision of alginate impressions
二氧化氯噴霧消毒對藻酸鹽印模模型精度的影響According to the theoretical derivation of support vector machine training process, the training result is not compromised as long as all training examples satisfy the optimality condition before terminating
由svm理論可知，訓練svm的優化過程存在全局唯一的最優解，因此，這樣改進了的演算法不會對模型精度有任何影響。Using stable heat transferring theory, a thermo hydraulic model has been built, which has considered the influence of the core temperature and cooling hydrogen temperature. and bring forward a modifying method, which let the model can be used in the varying winding current condition
在此基礎上本文提出了溫度傳遞延時的修正方法，使基於穩態傳熱的溫度水力模型可以應用到定子電流發生變化的情況，解決了定子電流變化時模型精度差的問題。分享友人