擬因子 的英文怎麼說
中文拼音 [nǐyīnzi]
擬因子
英文
quasi-divisor-
2 the theoretical values of the second virial coefficient are precisely fitted into some simple expressions. according to one of them, a new temperature function for the quadratic terms in cubic equations was derived : the function is simple, general, without acentric factor, truly predictive, theoretically sound, and applicable to all the van der waals - type equations
2將第二維里系數的理論值較精確地擬合為幾種簡單的表達式，並據此導出了立方型狀態方程中二次項溫度函數的新形式該式簡單、通用，不含偏心因子，具有真正的預測功能和堅實的理論基礎，原則上適用於所有vanderwaals型方程。Its biquadratic finite element approximation is considered and under the appropriately graded meshes, quasi - optimal order error estimates in the - weighted h ^ 1 - norm, up to a logarithmic factor in the singular perturbation parameter, are proved
然後，考慮此方程在分層網格剖分上的雙二次有限元逼近，在-加權h ^ 1 -模意義下得到了至多相差一個關于攝動參數對數因子的擬最優階收斂的誤差估計。On the basis of expound the theory of building exterior - protected construction energy consumption and the gene of influence the building energy, set up mathematics model, this article discuss the mechanism of dispelling the heat of the buildings " thermal bridge and the complication that influence it, and then synthetic analysis and calculate the influence range of building thermal bridge in exterior - protected construction column thermal bridge to the building outer wall get the conclusion that when the construction column can satisfy the building stress - area, in bulgy construction column dispel less heating than out bulgy construction column. but if the pole stuck out more than 100mm, in bulgy or out bulgy make no difference
本文在闡述建築圍護結構耗熱原理以及影響建築能耗因子的基礎上，採用數值模擬方法，探討了建築熱橋傳熱的基本機理和影響建築熱橋傳熱的因素，進而對建築熱橋在圍護結構傳熱中的影響范圍進行了綜合分析和計算，研究了構造柱熱橋型式對建築外墻能耗的影響，得出了構造柱在滿足建築受力面積要求的情況下，內凸構造柱較外凸構造柱略能減少散熱量的結論，但是凸出過大（ 100mm ）無論內凸還是外凸對建築耗熱都沒有大的差別。We design a complier of parametric and random context sensitive l - system to simulate the development of plants and interpret the rules that decide the way plants grow. we also extend the l - system with the environment factor
我們為模擬植物生長而編寫了l系統編譯器來實現可定義規則的植物造型，並把隨機因子和環境參數擴充到l系統中。The paper describes isn as a nonlinear dynamic complexity system, and with self - organization characteristics. next, the paper constructs the structural model of ecological industrial chain by imitating the producer, consumer and decomposer in natural ecological system, and analyses the resources flow from the viewpoint of value chain. based on the theory of byproduct exchange, the paper put forwards four kinds of operation model of isn, and analyze them hi detail by using of the case study
模仿自然生態系統中的生產者、消費者和分解者構建生態產業鏈結構模型，從價值鏈角度分析了其中的資源流動；提出了生態產業鏈活性因子的概念，並運用這一概念對生態產業鏈的形成機理進行分析；基於副產品交換的特點，提出四種工業共生網路運作模式：依託型共生網路，平等型共生網路，嵌套型共生網路和虛擬型共生網路；通過對工業共生網路中資源流動的分析，揭示了副產品交換規律。Establishing an human spine dynamic model is an significan event to study spine injured biomechanics of pilot " s ejective injury, parachute opening, landing and study the endurance to impact loading on human spine. in this paper, the huston " s method of kane " s equations is developed so that it can be applied to the multibodysystem including translation between the bodyies. the dynamic model of human spine is provided basing on these theories, while the big movement of spine is considered. the deformation of vetebra is far smaller comparing with the intervetebra disc, so the spine is considered into multibodysystem including rigid bodies ( vetebra ) and the flexible bodies ( intervetebra disc ). the computer solution correspond with the results of the large scale human impact test. the rigid coefficient factors and the damping factor of intervetebra joints are obtained
人體脊柱動力學模型的建立對研究飛行員彈射救生、傘兵跳傘開傘、著陸等脊柱損傷的生物力學以及研究人體脊柱耐受沖擊載荷的極限問題都具有重要意義.首先發展了凱恩方程的休斯頓方法，使其可應用於變形體連接的多體系統，並以此理論為依據建立人體整椎脊柱沖擊動力學模型，此時考慮脊柱的大位移運動，每個椎骨的變形相對椎間盤的變形小得多，把脊柱看成由剛體（椎骨）和變形體（椎間盤）組成的多體系統.並以大型真人坐姿沖擊實驗結果進行了擬合，最後得到腰椎間關節剛度系數因子和阻尼系數因子At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel
首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。Influence of chinese herb compound gastrodia rhizome and gambir plant on basic fibroblast growth factor and its receptor in in vitro cerebral ischemia reperfusion injury
以天麻和鉤藤為主的中藥制劑干預體外模擬腦缺血再灌注損傷大鼠堿性成纖維細胞生長因子及其受體的表達In this article, our major premise focuses on the methodology of analyzing and categorizing financial indexes of a publicly traded company
在本文中我們擬採用因子分析中主成分分析法對上市公司財務指標進行分類。The results show that the ass can effectively reduce the roll angle and roll angle acceleration in non - linear driving and improve the side tumbling stability
模擬分析得到主動懸架系統使得汽車在彎道行駛時的側傾角有效值下降了92 . 8 % ，側傾角加速度有效值下降了78 . 2 % ，側翻因子有效值下降了92 . 6 % 。Thereafter, the applications of go sequences in single - cell s - cdma systems are discussed in this thesis. in additive white gaussion noise ( awgn ) channel, interference components in s - cdma systems accommodating more users than the spreading factor is analyzed based on the theoretical bound of the periodic correlation mean square property. then two interference - suppressed s - cdma system models of augmented capacity are proposed, along with the analysis and simulation results
在加性白高斯噪聲（ awgn ）通道條件下，以序列集周期相關均方特性理論界為基礎，對序列個數大於系統擴頻因子的s - cdma系統干擾組成進行了分析，並基於截短wh序列提出了兩種高容量低干擾s - cdma系統模型，給出了分析和模擬結果。In the study of directional spectrum and reflection coefficient of multidirectional wave, firstly the wave elevation trains overlapped by the incident wave and the reflected wave of multidirectional wave are simulated in the method of a frequency corresponding to a direction. then the composed wave trains are analyzed respectively by the mbdm and the mmlm. during the numerical study, the input factors include the various wave parameters, the different measuring wave system and the various reflect characteristic
在多向不規則波入射波方向譜和反射系數的分析研究中，利用方向頻率對應法模擬了多向不規則波入射波與反射波疊加的波面序列，將此合成波列分別應用mbdm和mmlm進行分析，通過輸入各種波浪參量、不同波浪測量系統和各種反射特性等因子，檢驗了mbdm和mmlm方法的適用條件，對兩種分析方法的性能進行了比較分析。Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications
本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術，主要研究成果包括以下幾方面:首先，建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型，分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析，數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略有下降而不太適合;在分析定向精度確定性影響因素的基礎上，提出了雙星定向精度衰減因子odop的概念，揭示了雙星定向誤差特殊表現的內部機理，對實際工程應用具有重要的指導意義。Abstract : in this paper, we obtain the point estimetions and the approximate confidence interval of the environment factor of the lognormal distribution based on the censoring samples. the accuracy of the approximate confidence interval is studied by the simalation method
文摘:本文導出了壽命分佈為對數正態分佈時基於截尾樣本環境因子的點估計和近似置信限，對所給近似置信區間作了模擬研究。The emphasis in this composition is windshear signal processing technology. some processing methods are introduced in detail, they are suppressing clutter, extracting windshear parameters, computing hazard factor and etc. the signal processing simulation is accomplished on computer, it includes simulating microburst echo signal, simulating ground clutter echo signal, filtering clutter, estimating wind speed and calculating hazard factor. from the simulated results, a dangerous windshear is detected 5o ~ 78s, so the radar performance meets the certification requirements proposed by faa and nasa
本文重點研討了風切變信號處理技術，對雜波抑制技術、風切變特徵參數提取技術及危險因子計算方法等內容進行了深入的研究，並進行了計算機模擬，包括微下擊暴流回波信號模擬、地雜波回波信號模擬、雜波抑制、風速提取和危險因子計算。Recently, some new studies suggest that small cytokine peptide - mimics can function as the agonist or antagonist of cytokine receptor, and these small molecular peptides can be synthesized easily and oral adminstration with high concentration. based on these work, we have tried to set up experiment on tnfa - binding peptides and tnfa mimotopes which may be as leads of tnfa antagonist
近年來的研究發現，小分子細胞因子模擬物具有細胞因子受體激動劑或拮抗劑的作用，且小分子模擬物因容易合成並能夠給予高濃度、可口服等優點使其具有更加廣闊的研發與應用前景。An idea, simulating the fuzzy model by establishing the fuzzy model and fuzzy control rule of the controlled object is proposed. generally, it is difficult to acquire the accurate mathematical description of the controlled object. a dynamic modulating factor is introduced in the designing of the fuzzy controller so as to improve the precision of the fuzzy control. and a more convenient defuzzify calculation method is adopted. the cart and the single inverted pendulum are taken so as to illustrate the simulation result. in addition, the detailed qualitative analysis of the fuzzy system is achieved. a kind of common method of qualitative analysis is proposed. it can be used to analyse the fuzzy system and describe the behavior of the system state precisely in the phase plane. the simulating results illustrated the method is feasible and available
提出了在難以精確描述控制對象數學模型的情況下，通過建立控制對象的模糊模型來確定系統的模糊控制規則，並對模糊系統進行模擬分析的思想.利用連續系統定性分析的思想，提出一種對模糊系統進行定性分析的可行方法，在相平面內較為準確地刻畫模糊系統的動態行為.在模糊控制器的設計中，引入動態調節因子來提高模糊控制的精度，並採用了一種便於實際運算操作的解模糊運算方法.在一種簡單的控制對象情況下進行了具體的模擬計算，得到較理想的控制效果.此外對具有精確數學模型的一級倒立擺系統進行此種模糊控制，亦取得很好的模擬結果The updated model with complete forcing has excellent ability of simulation and forecast. to study yellow and east china circulation in winter and summer, based on long - term ocean observation data of january and august, the fine structure of yellow and east china seas circulation is diagnostically calculated with complete forcing ( including surface wind stress, boundary transportation, baroclinic effect, tide, changjiang river runoff ) in winter. the influences of factors on main circulation patterns are discussed respectively
對于冬季和夏季海洋環流的情況，在多年觀測的溫鹽資料基礎上，分別以1月份和8月份代表黃東海冬季和夏季的情況，以月平均大氣風應力、邊界流輸送、溫鹽斜壓效應、潮汐、長江口徑流等作為強迫條件，對黃東海環流的細微結構作了高分辨的三維數值模擬，探討了各因子對冬、夏季主要流系的動力學作用。The dynamic data of displacement, strain and impetus force acquired from the experimental collection system are also well analyzed for measuring precision and errors. based on the underlying work and experimental features, the thesis proposes a simple, practical and well accurate impetus resultant force fitting method, weighted factor fitting method. a line - off data processing software system for bird - impact experiment, named as cadabie, is well designed under the principle of software engineering, and has been applied, with high praise, in bird - impact laboratory in the factory numbered 320 and esfahan bird - impact laboratory of iran
本文系統總結了鳥撞實驗的全部過程、主要儀器設備的工作原理與性能參數，分析了鳥撞實驗動態數據採集系統中位移、應變與撞擊壓力傳感器測量系統的測量范圍、測量精度及其工作特點，提出了一種更適合鳥撞實驗的撞擊合力計算擬合方法：加權因子法，同時應用軟體工程原理編制了「鳥撞實驗計算西北工業大學博士論文機數據分析系統」 （ caoabie ） ，目前該軟體己經在320廠鳥撞實驗室以及Finally, an energy approach is combined with the fem in the simulation of the crack propagation along the fiber / matrix interface in a pull out process. the simulated results are in nice conformity with experimental results. the second part of the research deals with the characterization of the failure process in the fragmentation tests, which is one of the most frequently used test methods in studying thermal mechanical properties of fiber / matrix interfaces
在這一部分工作的最後，採用能量法與有限元法結合起來，模擬纖維抽拔試驗中裂紋的擴展:針對以往研究工作中的不足之處，在模擬中使用能量釋放率，在表徵界面破壞時，所使用的應力強度因子考慮了纖維和基體兩種材料的不同屬性，並考慮裂紋尖端的單元奇異性，來研究裂紋長度和溫度對裂紋擴展的影響。分享友人