協變分量 的英文怎麼說
中文拼音 [xiébiànfēnliáng]
協變分量
英文
covariant component-
The quantities baβ are the covariant components of a plane tensor, called the curvature tensor of the surface.
ba是「平面張量」的協變分量,叫做該曲面的曲率張量。First, based on the historical data of 20 years of henan province, the cloud seeding operation cases in april and october in the central region of henan province were evaluated by cluster - analysis - based floating control historical regression method with uniform precipitation and atmospheric precipitable water as meteorological covariates, cluster - analysis - based floating control historical regression method with uniform precipitation as meteorological covariate, and floating control historical regression method ( fcm )
首先,根據河南省近20年的歷史資料,分別用以降水量為協變量的ca - fcm方法、以降水量和整層大氣可降水量為協變量的ca - fcm方法和浮動對比區歷史回歸統計檢驗方法( fcm ) ,對河南省4月和10月增雨作業進行評估。Three evaluation methods for the nonrandomized precipitation enhancement operation effects have been developed based on the regional rainfall control and meteorologit cal covariable correlation : dopple ratio analysis evaluation method using regional rainfall ten - dency control for single cloud seeding operation case ; regression analysis evaluation effects on the bases of regional correlation and developing tendency of rainfall ; and multiple regression analysis with meteorological and physical covariables
本文根據區域趨勢控制和氣象-物理協變量相關設計了三套非隨機化人工增雨作業效果評估方案:個例作業區域趨勢對比雙比分析評估方案、區域趨勢相關回歸分析評估方案和氣象-物理協變量多元回歸分析評估方案。Then, six evaluation methods ( double ratio analysis evaluation method using regional rainfall tendency control for single cloud seeding operation case, regression analysis evaluation effects on the bases of regional correlation and developing tendency of rainfall, multiple regression analysis evaluation effects on the bases of regional developing tendency of rainfall, cluster - analysis - based floating control historical regression method with uniform precipitation and atmospheric precipitable water as meteorological covariates, cluster - analysis - based floating control historical regression method with uniform precipitation used as meteorological covariate, and float ing control historical regression method ) were compared and analyzed with the case of the cloud seeding operation on 5 april 2002 in henan province
然後,以河南省2002年4月5日飛機增雨作業為個例,對作業區域趨勢對比雙比分析評估方案、區域趨勢相關回歸分析方案、區域趨勢多元回歸分析方案、以降水量為協變量的ca - fcm方法、以降水量和整層大氣可降水量為協變量的ca - fcm方法和fcm方法6種評價方案進行分析比較。It was shown from the result of analysis and comparison that the evaluation efficiency for the non - randomized cloud seeding operations could be improved by using appropriate physical covariate as control factor and increasing the correlativity between rainfall distributions in the control area and target area
比較分析的結果表明,只要不斷提高對比區和影響區的相關性和引入新的更有效的協變量,就可能提高非隨機化作業的效果評估效率,從而更好的檢驗人工增雨作業的效果。In the end, cluster - analysis - based floating control historical regression method with uniform precipitation and atmospheric precipitable water as metoorological covariates could more validly evaluate efficiency of cloud seeding operations and significant level of ca - fcm method was higher than the other methods, because it adopted cluster analysis which highly improved the correlativity between rainfall distributions in the control area and target area, and used grid interpolation which enhanced exactness of calculating precipitation rainfall, and chose atmospheric precipitable water as the covariant which increased the inferential accuracy of natural rainfall on the cloud seeding operational area
最後,得到以降水量和整層大氣可降水量為協變量的ca - fcm方法,由於採用聚類分析( ca )方法,提高了對比區和影響區相關性;採用網格插值技術提高了雨量的計算準確度;引入了不受催化影響的物理協變量(整層大氣可降水量) ,提高了作業區自然降水量估計值的準確性;所以評估效果最好,顯著水平高於0 . 05 。Every vector can be resolved into covariant or into contravariant components.
每個矢量都可以分解成協變分量或逆變分量。After comparing the initial wind, geopential height, relative humidity and the sounding profiles of temperature and humidity at several sounding stations between the original mm5 assimilation scheme and the 3dvar assimilation system, some conclusions are drawn : the relationship among model variables becomes more harmony and more close to observations
分析比較初始風場、初始位勢高度場、初始相對濕度場和臺風周圍分佈的探空站的探空曲線后的結果表明:在三維變分同化后各模式物理量之間更加協調,更加符合實際觀測。The study on the numerical simulation experiments to typhoon processes using 3dvar assimilation system also carries out. the conclusions are drawn after comparing the wind field, geopential height, relative humidity and several sounding profiles at sounding stations between control experiment and 3dvar data assimilation experiments. the results show that the model variables are more harmony in dynamic and physics to the experiments of 3dvar assimilation
在對三維變分實驗與對應控制實驗的風場、位勢高度場、相對濕度場和幾個探空站探空曲線的模擬結果,及對所模擬的臺風路徑和路徑的偏差比較分析研究的基礎上,得到如下結果:各模式物理量之間在三維變分數據同化后的分佈,在動力上和物理上都更加協調和合理,更加符合實際觀測。Firstly, under the condition of constant viscous dissipation, the field coordination equation was induced for steady laminar convective heat transfer by the conditional variational principle based on the extremum principle of heat transport potential capacity dissipation
首先在粘性耗散一定的條件下以熱量傳遞勢容耗散取得極值為優化目標,運用變分方法導出了層流對流換熱場協同方程。This dissertation is faced to the process of steel rolling to found network of manufacture material flow, basing on it founding guide line evaluation system of the cost of unit standard producing working procedure, guide line evaluation system of the quality cost of unit standard producing working procedure and guide line evaluation system of performance and efficiency ; and base on the cost data of all kinds of material flows, manufacture flow, flux data, manpower, energy consume, material consume, capital asserts occupied, fund occupied, and the production in working procedure, throughput of the materials in working procedures in the flow and countercurrent flow in the network of material flow of recorded in working procedure producing, using the “ whole closed down lane ” model to describe network of manufacture material flow of steel rolling, found the cost analyzing model system of the network faced to producing process. make the cost increasing of the producing by abnormity material flow in working procedure, and even the cost increasing of the producing procedure as the cost of the management behavior of working procedure fallen under cost evaluation guideline in responsible working procedure, so as to ration measure the factors fast correlated with management behavior by measuring the cost
在企業管理信息化輔助工具所建立的數據平臺基礎上,建立了以基準物流圖模型為基礎的軋鋼生產主流程物流網路拓撲圖,根據圖論的理論求解最大流量和最小費用;計算每個生產節點的加工成本,分離質量成本,克服了單純財務數據進行成本核算所帶來的缺陷;建立了軋鋼生產主流程工序含鐵物料吞吐能力基準圖模型,並根據此模型建立了軋鋼生產主流程工序激勵物流協調性和匹配性、工序響應物流協調性和匹配性分析的過程能力指數計算方法;通過引入決策單元綜合投入與綜合產出效率最優原則的模型和基於投入不變、分析產出是否有效或基於產出不變、分析投入是否有效的模型,實現了對多個績效指標在不同績效值集合之間的相對比較,並可根據投入產出效率準則、或者投入(產出)有效性準則進行排序。The cointegration analysis of the impacts of the import, export and per capita income on the industrial structure from 1978 to 2004 in yunnan province has reached the following results : there exists one cointegration relation between the four variables ; export has a positive impact on the upgrading of the industrial structure while import has a negative impact ; per capita income has little impact ; the " essential variable " of the development of industrial structure is on the increase
雲南省1978 ~ 2004年出口、進口及人均收入對產業結構的促進作用的協整分析表明:四個變量之間存在惟一的協整關系,出口對產業結構升級有正相關作用,進口則阻礙產業結構升級,而人均收入對產業結構的影響不明顯,產業結構成長的「本質變量」逐漸增大。Go a step further, beginning with the relation of the general curvilinear coordinate system and its corresponding reciprocal base, we derived the description of the particle ' s motion in the reciprocal base, and the covariant components of the particle ' s motion were obtained as well
進一步地,從一般曲線坐標系與其對應倒基的關系出發,導出了一般曲線坐標系對應倒基下對質點運動的描述,並進而給出了質點運動對應的協變分量。A new four - node axisymmetric element ach8 is derived based on the combined hybrid variational principle, which uses wilson ' s displacements and linear stress suffering from energy compatibility. the resulting element exhibits excellent results in displacements and stresses and is suitable for nearly incompressible materials without any locking phenomena, insensitive to mesh distortion
本文首先基於組合雜交變分原理推導出4節點的軸對稱元ach8 ,其位移插值採用wilson非協調位移模式,應力在等參坐標系下採用關于wilson位移完全能量協調的不完全線性多項式。With regard to the relationship between physique and urban - rural factors, the f value decreased significantly when family income per capita was taken as a covariate, while the f values slightly decreased also when factors of latitude etc. were taken as covariates
多因素分析討論時,當協變量家庭人均收入投入后,體格的城鄉因素的f值明顯變小,而協變量自然環境因素投入后變化卻不十分明顯。There are two types of pwa method, the non - relativistic paw method and the relativistic paw method which developed from 40 ' s and 50 ' s of twenty century ( including covariant tensor pwa method and helicities amplitude analysis method ). the relativistic covariant full amplitude pwa method is a common way to search for new states in current
本文討論的相對論協變全張量振幅分波分析方法是當前分析實驗尋找新粒子態的一種常用方法,它充分利用了計算機的優勢對所有實驗信息進行擬合,是分析級聯兩體反應的一種簡單而有效的方法。In this paper, a variable blast air conditioning system based on vpvt control method is discussed. it is two stages master - slave bus control system. the variable static pressure smart coordinated control algorithm is realized by the master
本文研究了一種基於vpvt控制的變風量空調系統,這是一種二級主從式總線控制系統,主機實現了變靜壓智能協調控制, n臺從機分別對vav實現變風量的溫度間歇式pid批量控制。The paper analyses the relationships between the foreign reserves of china and the price index based on the cointegration method and vector error correction model of a variable vector auto - regressive ( var ) model
摘要本文運用多變量向量自回歸模型( var )的協整分析方法與向量誤差修正模型對我國外匯儲備與物價指數之間的關系進行了實證檢驗。It shows that there is cointegration relationship between the economic growth rate and the m1 increase rate. then by using the cointegration, granger causality method, impulse - response analysis, vector error correction model with markov regime switching to test the equilibrium relationship in long run and the short fluctuation pattern in short run between the real output and m1 increase rate, it shows that monetary supply can affect the macroeconomic effectively, and the interest rate and stock market value can not affect the macroeconomic effectively
本文研究了經濟增長與貨幣供給量、利率、股票市場等貨幣中介指標的關系,得出經濟增長率與m1增長率具有協整關系的結論,在此基礎上使用協整分析、 granger因果關系檢驗、脈沖響應分析、具有markov區制轉移的向量誤差修正模型等最新的經濟計量方法,描述和檢驗了中國經濟周期波動過程中實際產出與貨幣供應量變動的長期均衡關系和短期波動模式。If we build the logarithm linear model on the basis of the general principle of the money demand by making an adf test of variables and cointegration analysis, predicting the money demand model by ols and johansen cointegration, it would be found that the stock market of our country has had an obvious impact on the money demand according to the recursive results
根據一般貨幣需求理論建立我國貨幣需求對數線性模型,同時進行變量的adf檢驗和協整分析,然後用ols方法和johansen協整檢驗估計貨幣需求模型。根據回歸結果認為,我國股市已經對貨幣需求產生了顯著影響。分享友人