重差法 的英文怎麼說
中文拼音 [zhòngchāfǎ]
重差法
英文
method of double differences-
Residual a posteriori error estimate two - grid methods for the steady navier - stokes equation with stream function form
方程流函數形式兩重網格演算法的殘量型后驗誤差估計They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。Because it is impossible to adjust the air bearing absolutely balance, the difference between mass center and rotation center must lead to a notable gravity disturbance torque. in the process of identification, modeling and identification of gravity disturbance torque is considered, and an extended kalman filter is educed for identifying air bearing inertia matrix and gravity disturbance torque, and then the algorithm is validated
由於氣浮臺平衡調試方法和手段的限制，實驗過程中氣浮臺質心與轉動中心有一定的位置偏差，必將導致較大的重力干擾力矩，在辨識演算法的推導過程中，重點考慮了重力干擾力矩的建模和參數辨識問題，推導了氣浮臺的轉動慣量和重力干擾力矩辨識的擴展卡爾曼濾波演算法，並對演算法進行了數學模擬和全物理模擬驗證。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。Emphatically, this paper discusses the pattern of signal and antenna radiation of the system, the design principles and technologies of audio - generator and monitor, and the modification of measurement deviation. through special tests and aviate experiments, it has been proved that the performance of the domesticalized system is better than of the initial system
文中重點分析了俄制分米波儀表著陸系統的信號格式和天線輻射場型，著重闡述了系統中音頻信號產生器和監測器的設計原理和實現技術，對信號檢測中的測量誤差進行了分析並設計了有效的修正方法。By using the processing method of sliding time window, the problem of the periodicity range ambiguity is solved. meanwhile, the problem of range ambiguity which is produced because the range of target is biger than the maximum range of radar is also solved by using this method. then, the pulse width parameter which is the most important in the parameters of fmicw is analyzed. the stricter restrict is given to ensure the range spectrum has only one beat frequency after signal processing. at last this thesis introduces the different signal processing methods of fmpcw and fmicw
同時利用該方法解決了fmpcw信號的由於目標距離超過雷達的最大單值測距范圍而引起的距離模糊問題。然後對fmicw波形參數中最為重要的脈沖寬度進行了分析，給出了更為嚴格的約束條件，保證了信號處理后距離譜峰值的唯一性。最後，分別介紹了fmpcw和fmicw信號的不同處理方式，並對兩者不同的時域濾波性能進行了比較，並對二者的差異進行了分析。In this paper, the design of a practical sort of high performance biquadrates elliptic active band - pass filters is emphasized, and then the design techniques and how to calculate the resistors and capacitances, how to make computer simulation and tolerance analysis with computer are described in detail
摘要本文我們重點介紹了一種實用的雙二次型高性能橢圓函數有源帶通濾波器的設計方法，詳細介紹了該濾波器的設計步驟及阻容元件的參數計算，並對設計出的電路用計算機進行模擬模擬和容差分析。Means of packaging ; bottles and hollow bodies made of plastics, general tolerances for weight and brimful volume
包裝方法.塑料瓶和空心體.重量和充滿量的一般公差The gpss have one output and two inputs which are speed error and its derivative. selecting triangular function as fuzzy variable ' s membership function, mamdani max - min synthetic method as fuzzy inference method and centroid method as denazification method, fuzzy control rules are given according to the control expectation of governor and the experience of operating staff
這種模糊gpss採用二輸入單輸出結構，以機組轉速誤差及其導數為輸入量，以三角形函數作為模糊量的隸屬函數，根據水電機組穩定控制要求和操作人員的經驗制定控制規則，以mamdani的max - min合成法和重心法分別作為模糊推理方法和清晰化方法。Then it analyses refrigeration the principle and characteristic of the automobile air - conditioner, and investigates and compares the thermodynamics theory and methods of testing of the automobile air - conditioner ' s performance, it introduces the method of the difference of enthalpy especially
對汽車空調的製冷原理和特點進行了分析，並對現有的汽車空調性能檢測熱工原理和方法進行了比較分析，對採用的焓差法進行了重點介紹。It ' s considered that the only child juvenile delinquency tends to have more wicked property and the increasing crime rate, and the instrument of only child juvenile delinquency tends to be adult - alike, intellectualized, in team work and with younger ages. it deeply explores the subjective and object reasons for the only child delinquency. the subject reason is including devoid of correct philosophy and value of life, too strong self - centralized consciousness and dependency, lack of self - supporting, legal idea and social communication ability and not knowing how to choose friends etc. the objective reason is that the unsuited environment and misplay of scholastic and family education, ill influence by the community and so on
本文首先從犯罪的主體、犯罪的客體、犯罪的主觀方面和犯罪的客觀方面闡述了獨生子女犯罪的構成；接著分析了我國獨生子女犯罪的現狀及其危害性，認為我國當前獨生子女犯罪呈現犯罪性質惡劣，重大刑事犯罪率上升，犯罪手段成人化、智能化，犯罪方式團伙化，犯罪年齡低齡化等特點，闡述了獨生子女犯罪對獨生子女自身、家庭、同輩群體以及社會的危害；然後深入地剖析了我國獨生子女犯罪的主要主客觀原因，認為主觀原因包括缺乏正確的人生觀、價值觀，自我中心意識強，感情脆弱，依賴性強，生活自理能力差，法制觀念淡薄，人際交往能力差，擇友不慎等方面；獨生子女犯罪的客觀原因有不良的社會環境，學校教育的失誤，家庭教育的失當，社區環境的影響等。Test method for density, relative density and api gravity of crude petroleum and liquid petroleum products by thermohydrometer method
用溫差比重計法測定原有和液化石油產品的密度相對密度和api重量的試驗方法Standard test method for density, relative density, and api gravity of crude petroleum and liquid petroleum products by thermohydrometer method
用溫差比重計法測量原油和液態石油產品的密度相對密度和api重量的標準試驗方法The only few legal provisions concerning the civil liability is essentially useless due to lack of feasibility. for the above reasons, to conduct study on some basic issues concerning the civil liability of certified public accountants, such as the nature of civil liability, review standard of false audit report, standard of duty of certified public accountants, burden of proof, etc, is important legal means to effectively resolve t
僅有的關於民事責任的法律規定操作性極其差，形同虛設，因此，開展對注冊會計師民事法律責任的基礎性問題，如民事責任性質、虛假報告鑒定標準、歸責原則、舉證責任設置、民事賠償制度等的研究，是有效解決虛假陳述問題的重要法律手段。7. based on the comparison with dual band gps phase and c / acode, ambiguity function method, least squares search, ambiguity solution covariance, cholesky disintegrate and least square ambiguity decorrelation adjustment, it is considered the method of ambiguity function using double gps antennas to move baseline and the equation of dual differential carrier phase
在分析雙頻p碼偽距法、模糊度函數法、最小二乘搜索法、模糊度協方差法、 cholesky分解法、和lambda演算法的基礎上，重點研究基於雙gps天線動一動基線載波相位雙差整周模糊度確定方法。It was pointed with the experiment methods of electro - chemistry, metallographic analysis, weighing, spot count and bending that : the additives play an important part in getting high quality coating. however, the effect of different kinds of additives on performance of electrolyte and coating and the part of same additive in different electrolyte are varied. each additive is selective to electrolyte
通過電化學方法、金相組織分析、重量法、斑點法、彎曲法等試驗方法研究指出：添加劑對鍍層質量起著至關重要的作用，但不同類型的添加劑對鍍液和鍍層性能的影響並不相同，同一添加劑在不同鍍液中所起作用亦有差異，各種鍍液對添加劑具有選擇性。In the first part, we analyze the risk and reasons that a securities corporation in china is facing at present, then develops a securities corporation risk control system based on the realities in china by the ways of advanced qualitative management pattern from oversea. in the second part, we consider the existing situations that market risks became a major problem to a securities corporation, we have a method to measure developed market risk by adopting an advanced quantitative model var which is popular internationally, and we focus on studing risk metrics ( var - covar ) application in securities market of china practically. we conclude that var model is useful and effective at controlling market risks in china by our analysis and test
第一部分通過對證券公司風險及風險成因的分析，借鑒國外先進管理模式提出了構建符合中國國情的證券公司風險控制體系，對目前我國證券公司主要業務的風險點及風險管理進行闡述，並佐以案例；第二部分針對市場風險日益成為證券公司主要風險的現狀，引入了國際上最廣泛使用的市場風險控制方法? ?風險價值法（ var ） ，從實用角度重點研究了方差協方差法在我國證券市場的應用，通過實證分析得出了在我國使用var控制市場風險是切實可行的結論。Two methods are used to calculate the organic carbon content : overlay technique for acoustic slowness curves and resistivity curves ; the regression formula of organic carbon content and log responses obtained from experiments
應用以下2種方法計算地層有機碳含量：聲波時差與電阻率曲線重疊法；根據實驗結果建立的有機碳含量與地層測井響應的回歸方程。The claim has been made upon the results that the wmt method should be used in the area near the vertical, while the phase difference method in slant beams and a rule has been given to select among those two methods according to the " effect value " on condition the depth is known for the consideration of improving the measurement precision, this paper studies the factors which affect the toa measurements, and three expressions of precision has been introduced as to applications of phase difference method, this paper introduces an automatic hunting method based on amplitude power to get the range of echo arrival
採用方差分析的方法，使用重復海試數據對wmt法和相位差法的優劣進行了分析，指出了垂直附近應該使用wmt法，而傾斜波束應該使用相位差法；給出了在深度真實值已知前提下wmt法和相位差法使用的判決準則，即根據效應值的大小來選擇。本文從提高測量精度角度出發，分析並驗證了影響toa測量精度的因素；給出了三種精度表示。在應用相位差法時，引入了一種基於幅度能量的區間自動搜索方法；實驗表明該方法能很好地確定回波到達的大概時間范圍。Methods : the experts consultation method based on information of investment and financing of public health in rural areas of hunan was used to establish the indexs which were then being dimensionless by pole - differential and then weighted average method was used to process the practical data of 14 regions in hunan province
方法：本文在廣泛收集我省農村公共衛生投融資方面的資料數據的基礎上，運用專家咨詢法確立符合本研究領域特徵的指標體系和指標權重，並運用極差法對實際數據進行無量綱化處理，採用加權平均法計算出我省14個地州市的區域分類標志值。分享友人