數量理論 的英文怎麼說
中文拼音 [shǔliánglǐlún]
數量理論
英文
quantity theory-
It shows that information function can more accurately evaluate the quality of items and test and the ability of examinees than ctt does, so it has more strong guidance in editing test
研究結論表明:信息函數較經典測量理論能更精確地評價項目質量、測驗質量及被試能力水平,因而對測驗及學生能力水平的評價更科學,同時對測驗的編制有更強的指導作用,值得推廣。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。This thesis aims to design one instrument to measurement of the fluid thermal conductivity by used the hot - wire method ( hwm ). firstly expatiated on the theory of this method, got the academic solution by analyzing the ideal model, and then amended the ideal solution to satisfy the factual situations
本文重點討論瞬態熱線法測量液體的導熱系數,從理論與實驗及數值模擬的角度分析探討瞬態熱線法測量液體導熱系數原理及其實現過程,並分析理論與實際測量過程中的誤差產生原因及誤差避免與校正。Measurement precision contribute to improving the security class and economic of boiler running and automatic level of whole plant. the smart measurement instrument of the boiler ’ s air flow designed in the thesis and the instrument can make the degree of accuracy get to. firstly, the thesis build the “ velocity - area ” method which is on basis of “ log - tchebycheff ” on the analyzing of basic measure method of boiler ’ s air flow. secondly, model86 averaging pitot tube was selected the right model of flow transducer which can pickoff the differential pressure and static pressure. modelc264 which made in setra system corp. u. s. a was selected as ultra low differential pressure transmitter. a good flow of boiler ’ s air was calculated by offsetting pressure and temperature. finally, numeroscope was designed with z80cpu and other chips
精確的監測有助於提高鍋爐燃燒的安全型、經濟性,也有助於提高電廠的整體自動化水平。本文設計的智能化鍋爐風量測量裝置能夠實現對鍋爐送風的精確測量,精度可達。本文首先研究鍋爐送風矩形大管道測量理論,提出在流來流量測量測點布置基於「對數-切比雪夫」法的速度-面積法。In this paper we also designed the computer optical elements based on the scalar quantity diffractive theory, which can change the laser beam into a square frame. we mainly refered to the one of those improved algorithms of gerchberg - saxton ( gs ). with the computer simulation and drawing program, the simulated diffraction patterns were gotten in this paper, the results agreed with the anticipated diffraction patterns ; in the paper we also design the computer optical elements that can shape the laser beam into a double circle shape, a lamp shape and so on
計算機模擬成像結果與預期得到的衍射圖樣相符合;文中還討論了設計參數對成像質量的影響規律。同時,本文還用標量理論設計了把高斯光束整形為雙圓斑形光束的計算機光學元件,文中主要是參考改進的gs ( gerchberg - saxton )演算法;通過計算機模擬,得到了計算機光學元件表面的相位浮雕圖。It is significant in theory and in effect that automatically making operative plan with computer. the spottiness of plans workout can be avoided because of people ' s different thought patterns and professional characteristics, in effect ; in theory, the method of making operative plan for district stations will be further developed and the relative mathematics theories will be boosted
在實際應用中可以克服由於人的思維方式的不同以及專業素質的高低對計劃編制質量的影響,提高車站的調度水平;在理論上可以進一步豐富和發展區段站作業計劃編制的內容,推動數學理論向前發展。The paper applys ccd technology, digital photogrammetry theory, gis management technology and computer processing technology of image, combining the specialty of engineering geology catalog, to developing and studying the engineering geology catalog system based on digital image
本文綜合運用ccd技術、攝影測量理論、 gis技術和計算機圖形圖像處理技術,並結合工程中地質編錄的一些特點,研究開發了數字影像的地質編錄系統。In this article, firstly the background of the textile trade conflicts within sino - us or sino - euro are introduced, thus learn that how to discern and dodge the foreign trade risks, how to choose the appropriate investment projects have already become one of the most important questions for exporting companies on foreign trade affairs well - known as high investment and high risk. so the main text makes a risk analysis qualitatively and quantitatively on a textile - exporting trading company from three angles of statistic 、 game theory and portfolio theory, which is the main content that we studied. firstly, the statistic article adopts data of the transaction closing price of the textile clothing index in shenzhen stock exchange at the end of each quarter as well as several other kinds of data reflecting the macro - economic changes, performs an empirical analysis of these data according to the theory of co - integration test 、 granger cause test and impulse response function of time series in economitric, and learn that the impact to ti is more obvious by the economic index reflecting local commodity price level and economic prosperity degree home and abroad, as well as the impact degree and the time lag degree, and knows the macro - economic risks faced by textile business enterprises ; after that by the game theory angle we analyze exactly the managing risks faced by one textile export corporation named beauty. from the game expansion chart the system arrangement between censor ways by exportation goal countries and exporting strategies by the exporting enterprises has been analyzed. involving the benefit assignment between them both the limited rounds and infinite rounds negotiations of cooperation games have been studied, and then country responsibility and the enterprise managing risks on foreign trade affairs and so on have been analyzed exactly ; in order to realize the investment multiplication in the certain degree to disperse the risk, the
本文首先介紹了中美、中歐紡織品貿易爭端的來龍去脈,由此可知在涉外貿易這種以高投入、高風險著稱的行業里,如何甄別和規避外貿風險、如何選擇合適的投資項目已經成為外貿企業的首要問題。因此,正文分別從統計學、博弈論和投資組合三種角度對涉外紡織品貿易公司風險進行了定性和定量的分析,這也是本文的主要研究內容。首先,統計學篇選取了深圳證券交易所行業分類指數?紡織服裝指數( ti )每一季度末的交易收盤價和若干種反映宏觀經濟變化的指標,利用計量經濟學中時間序列的協整檢驗、 granger因果檢驗和脈沖反應函數等理論做實證分析,從而得知反映國內物價水平和國內外經濟景氣程度的經濟指標對紡織板塊上市值的沖擊比較明顯,且可知沖擊程度和時滯度,進而分析出涉外紡織企業所面臨的宏觀經濟風險;接著,從博弈論的角度具體分析一家紡織品出口公司( beauty )的外貿活動所面臨的各種經營風險,該篇從博弈擴展圖入手,分析了出口目的國審查方式與本企業出口策略之間的制度安排;並圍繞雙方的利益分配,研究了有限回合和無限回合合作談判博弈,然後具體論述了國家責任和企業涉外經營風險等問題;在一定程度上為了實現投資多元化來分散風險的目的,投資組合篇從經典的markowitz模型著手,在一些特定條件的限制下,給出了一個相應的投資組合模型。A markov model is used for calculation of dcf throughput. it is disclosed that the key parameters are the number of contending stations and the length of contention window. the maximum throughput and the best parameters are offered by theoretical analysis
對dcf部分,利用markov模型推導網路吞吐量性能,指出競爭站點數和競爭窗口長度是關鍵性能參數,從理論上給出最大吞吐量和最優參量值。There were three reasons : ( a ) the cronbach ' s alpha coefficient for raters on the 5 criteria ranged from 0. 83 to 0. 91, which indicated that all the raters shared approximately the consistent rating procedure ; ( b ) in the multivariate generalizability theory ( mgt ), the paradigm got the composite generalizability coefficient of 0. 784, which showed the whole measure of wisdom, relative to each of the 5 criteria, was reliable ; ( c ) the pearson ' s correlation coefficients between the 5 wisdom - related criteria and the 3 positive indicators of psychological well - being ( pwb ) were mostly significant, which indicated that the conception of wisdom did test the knowledge and skills about the real life just like the pwb
為考察柏林智慧範式的測量信度,研究分別使用經典測量理論和概化理論計算信度指標,結果得到:克朗巴赫系數在0 . 83 - 0 . 91之間,說明智慧的五個特徵維度的評分者一致性都較高;多元概化理論的d研究得出的復合g系數為0 . 784 ,說明智慧測量的整體信度也較高。對于智慧測量的效度,研究選擇具備良好信、效度的心理健康狀況量表(中國修訂版)中的三個指標? ?幸福感、願望與實際所得的符合程度、以及自尊感,作為同時效標。This study run through the basic idea of ecoregional approach methodology and systematic design by integrating agronomy, ecology, environmental economics, resource economics and maths. the study methods included macro - and micro - analysis, qualitative and quantitative analysis, theoretical and case study, statistical analysis and model simulation and so on. resources shortage and environmental pollution casued by intensive agriculture were examined for a specific suburban area shunyi district beijingissues were systematically analyzed including landuse changes, landuse driving force, water - limited yield simulation with wofost model, ecological, environmental and economical analysis of landuse, as well as optimizing pattern of landuse with rcsadss model
本研究立足於生態區域法的基本思路,採用系統設計的思想,通過農學、生態學、環境經濟學、資源經濟學、數學等多學科的交叉與融合,宏觀與微觀、定性與定量、理論與實證研究等相結合的方法,運用統計分析、模型模擬等技術手段,在大量調研基礎上,針對目前大城市郊區農業用地中存在資源短缺、環境污染等問題,以北京市順義區為典例,從土地利用現狀與動態、驅動力、 wofost模型產量模擬、生態環境經濟分析及種植業結構優化模式等方面進行了系統研究,獲得如下研究結果: ( 1 ) 2002年順義區的土地利用仍以農業用地為主,耕地、園地、林地和牧草地之和占總土地面積的56 ,農用地中糧食作物仍佔43 。In this thesis, based on item response theory, a number of ways to estimate the latent trait and item parameters were introduced and their advantages and disadvantages were analyzed ; what is more, empirical logistic regression and two parameters logistic model ( 2plm ) are combined to set up a linear model by logit - mapping and a new parameter - estimation method is proposed
新方法將經驗logistic回歸用於兩參數logistic模型的參數估計,使用logit變換建立線性模型,利用線性模型的最小二乘估計得到第j個項目的項目參數向量_ j = ( _ j , _ j )的兩步估計由於x _ j含有未知的討厭參數,的理論值也和有關,我們結合上式的結果對進行再估計。In chapter 2, a general digital watermarking frame is presented, including the generation, embedding and detection of watermark. in chapter 3, the concept of watermarking channel is presented, the modes of watermarking channel and image dct coefficients is proposed, the capacity of watermarking channel is evaluated by embedding watermarks to selected still image dct coefficients in direct spread spectrum. in chapter 4, a watermarking algorithms based wavelet multi - resolution is presented, by conjunction with human visual model, it keeps invisibility of watermark in host image and need not original image during detection
數字水印是一種新的數字媒體保護技術,它是將特定的信息(如版權信息、秘密消息等)嵌入到圖象、語音、視頻等各種數字媒體中,以達到版權保護等目的,同時,這種信息對宿主媒體的影響不足以引起人們的注意且有特定的恢復方法,此信息對非法接收者應該是不可見的,本文主要對數字水印的一般框架,靜止圖象dct系數的理論容量,圖象水印的嵌入和檢測,數字媒體防篡改以及數字水印的攻擊等問題進行了研究,提出了兩個新的水印算演算法。The theory and experiment of measuring diffusion coefficients in terms of mr signal attenuation has been established for decades, but recent advance of diffusion tractography has enabled us, for the first time, to visualize and analyze the axonal fiber tracts in the living brain non - invasively
其實,利用磁振訊號衰減量測到擴散系數之理論與實驗已確立了幾十年,但近年來擴散神經纖維束造影的發展,第一次使我們能夠在活體非侵襲性的觀察和分析神經軸突纖維束。Based on the comparison and analysis of the secondary electron emission coefficient of two kinds of emitter gaas in theory, it is concluded that when primary electron energy is lower the deviation of secondary electron emission coefficient of two kinds of emitter gaas will become smaller, while when primary electron energy is higher the deviation will increase
通過對兩種負電子親和勢二次電子發射材料的二次電子發射系數的理論值進行比較和分析,得出:當原電子入射能量較低時,兩種材料的二次電子發射系數差值較小;當原電子入射能量較高時,兩種材料的二次電子發射系數差值較大,而且隨著原電子入射能量的升高,兩種材料的二次電子發射系數差值也在增大。Based on thermodynamics laws, inner - variable theory and analysis of conventional tn - axial tests data and breakage characteristics of loess, this paper proposed that the loess would produce elastic, plastic and nonreversible damage deformation during loading
從熱力學定律和內變量理論出發,在對常規三軸試驗數據和土樣的破壞特性分析的基礎上,認為土體在受力過程中將產生彈性變形、塑性變形和不可逆損傷變形。The research framework of the paper as follows : beginning with a brief introduction, the research background was given in the first chapter, then comes the theoretical model and empirical specification
第2章對本文所使用的數據、理論和實證模型以及研究對象進行介紹,並對模型所使用的有關變量進行簡要的描述性分析。Quantity theory of money
貨幣數量理論Gdp money supply
貨幣數量理論指Even the traditional money quantity theory could not account for this abnormal phenomenon. thus it is called by foreign professors the “ chinese mystery ”, that is the mystery of “ missing money ”
二、本文的主要內容及觀點從傳統的貨幣數量理論出發,本文首先在第一章對「失蹤貨幣」分享友人