數量估算 的英文怎麼說
中文拼音 [shǔliánggūsuàn]
數量估算
英文
quantity survey (surveying)-
Estimates of risk aversion vary widely, and no quantitative guidelines are available.
對于風險的躲避的估算具有很大的差異,而且也沒有適用的數量指標。The additional flow is formed by the device of dentoid baffle, and the application of the device of dentoid baffle cooperated with a stilling basin has been investigated by systematic model tests. based on the research results, the hydraulic problems such as the characteristics of hydrodynamic pressure and cavitation on the head of the denotid baffle, the properties of flow under the condition that the device of denotid baffle is used with a stilling basin, the hydraulic computation about a stilling basin, the estimation of energy dissipation and its various affection factors, the mechanism and effect of energy dissipation, and distributions of velocity and pressure and aerating concentration, etc, have been analyzed ; the method and step of hydraulic design of device of denotid baffle by which the additional flow is produced has also been proposed
文中利用齒墩設施實現附加射流,對齒墩設施與消力池聯合應用進行了大量的和系統的模型試驗,分析研究了中低佛勞德數條件下,齒墩墩頭的動水壓強及空化特性,齒墩設施與消力池聯合應用時的流態特性,消力池的水力計算,消能量的估算及其各種影響因素,消能機理和效果,消力池內的流速、壓強特性,摻氣濃度分佈等水力學問題,並提出了實現附加射流齒墩設施的水力設計方法和步驟。The number and nature of written and oral enquiries handled by the planning department depend on the demand from the public. they are no more than guestimates at this stage
規劃署所處理的書面和口頭查詢,數量和性質均視乎公眾的需求而定,現階段的預算指標純屬約略估計。Based on the close analysis of the influence factors of the vertical bearing capacity, circular aperture extension theory is employed to establish the computing formulas for the pile vertical stress and the foundation vertical bearing capacity, respectively. moreover, with analyzing the features of the calculation parameters such as materials of gunite mortar, jet pressure, diameter of the jet pipe, pile length, pile layout, a design theory for chemical churning pile composite foundation is proposed. then, the variation of the pipe deformation with loads, the deformation coordination of pile and soil are studied
在此基礎上深入探討了旋噴樁的樁土受力特性及其復合地基的加固機理,從影響旋噴樁復合地基豎向承載力的因素入手,基於圓孔擴張理論給出了樁體豎向應力及旋噴樁復合地基的豎向承載力計算公式;通過對噴射漿液、噴射壓力選取、噴射直徑估算、樁長及樁位設計等各種計算參數的深入分析和研究,提出了一套相應的旋噴樁復合地基設計計算方法;通過計算分析,深入探討了旋噴樁復合地基變形隨荷載變化規律、樁和樁間土變形協調關系、樁土應力比及復合地基壓縮模量的確定,並提出相應的設計方法和修正參數;此外,結合工程應用,對旋噴樁復合地基的施工技術及其現場質量檢測方法進行了較全面的探討。Firstly, by numerical and theoretical analysis, the author compares some existent confidence intervals, for example, " exact " confidence interval, wald confidence interval and bayesian confidence interval, and finds some deficiencies points of the confidence intervals, whose modification version has been proposed. also, several better confidence intervals such as are also presented. secondly, for given confidence coefficient and interval width, the author constructs a class of asymptotical two - stage interval estimate procedures. at the same time, under varies restriction of confidence coefflcientent interval width, the optional sample size of the first stage has been computed by numerical computation. the numerical computation shows that the method considered in this dissertation have good properties and applied value
同時,由於poisson分佈的特性,我們知道不存在其參數區間長度小於0 . 5的置信區間,基於這些情況,我們主要展開了以下兩個方面的研究:一是利用數值計算分析與理論分析的方法對現有的若干置信區間如「精確」置信區間, wald置信區間, bayes置信區間等進行分析比較,發現了一些缺陷,針對這些缺陷,我們進行適當的修正,並得到幾種性質較好的置信區間如:修正大樣本區間jeffreys原則下置信區間二是針對已給定的置信系數與區間長度,我們提出了一種漸近的兩階段區間估計程序,並利用數值計算的方法,在各種置信系數與區間長度限定下,算出了最優的第一階段觀測次數(抽樣量) ,大量數據表明,本文考慮的方法性態良好,具有應用價值。And a back - of - the - envelope calculation based on the 1. 8m sorts of organism recognised so far as species under the linnaean system, on the rate at which new species are being discovered and on such ecological matters as the average number of parasites ( themselves new species ) that each free - living species harbours, suggests the final total may be around 30m
一個以三部分,即:在林耐分類系統中迄今為止被認定是物種的180萬種微生物、新物種的發現速率和諸如在每個獨立生存的物種中藏匿的平均寄生蟲數量(它們本身也屬于新物種)等生態因素,為基礎的估算表明全球物種的總數是在三百萬左右。Moreover, base on lots of test data, fatigue life estimation is finished by help of miner, opposite miner rule and fracture mechanics theory. theoretic results and test data are well fit to each other
另外,本文在大量試驗數據的基礎上,依據miner法則、相對minar法則以及斷裂力學理論,對40cr高強螺栓的疲勞壽命估算進行了系統研究,理論分析結果與試驗值的規律性吻合較好。The math - model of predicting the residual nuclear radiation for neutron bomb nuclear explosion is studied
摘要研究了中子彈核爆炸剩餘核輻射估算的數學模型,給出了地面放射性沾染、通過和停留劑量估算的數學模型。Abstract : since the multiple failures situation is not uncommon in the clinical medicine, we explore the use of proportional odds model to the multivariate interval - censored data. the approach is based on the conditional logistic regression, which prevents the complications in the existence of nuisance parameters. the estimation of parameters is obtained by the newton - raphson algorithm. the sandwith estimator for the covariance is made according to the situation where there is correlation in the score statistic. simulations are also presented to assess the accuracy of the procedure
文摘:探索比例優勢模型在臨床醫學中常見的多結局區間截斷數據中的應用.用條件的邏輯回歸方法避免討厭參數的估計,用牛頓-拉普森演算法估計回歸系數,用"夾心方差"估計量作為參數方差的估計.通過隨機模型檢驗模型應用的有效性Furthermore, the precipitable water in cloudy sky was also calculated by the ground humidity parameter data. the calculated data were of high precision and low errors so that it was convenient to apply for investigations
估算的水汽場與用地面濕度參量資料估算的水汽場基本一致,僅在數值上有所差別,但是由於該方法的單點估算精度較高,所以具有更高的可信度。The major researches in this thesis include : applying the digital signal processing technology and theory of signal detection & estimation to estimate carrier frequency of the sensing signal that reflects the measurand ; implementing the algorithm in labview, a virtual instrument development platform
本文的主要研究內容是:運用數字信號處理技術和信號檢測、估計的基本原理從無源、無線saw諧振器型傳感器的傳感輸出信號中提取出反映被測量的信號主頻,並在虛擬儀器軟體開發平臺labview上實現了測量演算法。According to the kernel estimating theory of nonlinear semiparametric models under the least - square principle, the structural formulae of the estimation of parametric and nonparametric components and the direct formulas of kernel estimation considering the second order items were given
摘要基於非線性半參數模型最小二乘核估計,給出了其參數分量和非參數分量估計的構造式,導出了參數分量和非參數分量顧及二次項直接解法的計算公式。In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively
本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討,取得以下主要成果:一、結合小灣工程導流洞改建,對高水頭( 252m ) 、大泄流量( 1400m ~ 3 s )條件下旋流式豎井中的水流運動特徵進行了比較全面的測量,包括空腔形態、徑向流速分佈及井壁壓強等;二、提出了豎井空腔段螺旋水流水力計算方法,其計算結果與實測值吻合良好;三、利用試驗與計算結果,對旋流式豎井的消能機理進行了探討,對豎井各部分的消能能力有了總體認識;四、對豎井下部消力井的合理井深進行了優化試驗研究,發現消力井合理深度為0 . 9d左右;五、通過試驗研究,歸納出豎井水流總摻氣量估算方法,為導流洞排氣方案的設計提供了參考依據;六、在高水頭、大流量條件下,豎井空腔段下部流速很高,盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓,但空化數依然較低,因此豎井的空化空蝕始終是工程界關注的重大問題。The government and the banking circles hope to raise the efficiency of the housing financing regime, improve the banks " asset quality and to diversify the risk, so as to promote the development of real. it is necessary and workable to applying the mortgage - backed securities to propel housing innovation, although what we are should be attention to the necessary mortgage environment and it ' s policy are not completely fostered
由銀行等機構作為項目發起人,首先要分析自身對抵押貸款證券化的融資要求,然後通過對現有信貸資產進行清理、估算和核查,選擇一定數量的房地產抵押貸款作為證券化目標,並從資產負債表中剝離出來,將這些資產匯集組建資產池(即資產組合) ,作為證券化的基礎資產; ( 2 )出售貸款組合,即「真實出售」 。Researches the basis watermark managing works particularly and systemly. there are many works to do on watermak technology except watermark embedding and extraction arithmetics such as the watermark choosing, encoding, modulating, demodulating and the watermark capacity. these prior and ultimate works ensure that the arithmetic is brought into effect. just understanding these, this paper analyses and researches the basic watermark theoretics in many pages. it brings forward chaos modulation on watermark modulating, brings forward chaos permuting on image permuting, introduces bch encoding on letter watermark processing and discusses the approximate estimate of the watermark capacity in dct domain and dwt domain by applying the current communication theoretics. there works not only extend ways for the later work but also are significative on watermark research
全面系統地研究了水印信號的處理技術數字水印技術除了水印嵌入和提取的演算法外,還有許多工作需要做,如水印的選碼、編碼、調制、解調、能量的確定等等,這些預處理和后處理工作是演算法有效實施的必要保證,正是基於這樣的認識,本文利用較大的篇幅對水印的基本理論知識進行了詳細的分析和研究,在水印的調制方面,提出了混沌調製法;在圖像水印的置亂方面,提出了混沌置亂法;在文字水印的處理上,引入了bch編碼;在水印容量分析方面,結合現代通信理論,對圖像在dct域和小波域內的水印容量估算進行了詳細的探討,這些工作不僅為本文後期工作鋪平了道路,而且對數字水印的研究具有重要的意義。Unaids has reduced its estimate of hiv patients in china down to a range of between 390, 000 and 1. 1 million people
聯合國艾滋病研究中心將其對中國艾滋病患者的數量估算下降到了三十九萬到一百一十萬之間。In order to evaluate such characteristics as weight and static stability of proposed concepts effectively and conveniently during aircraft conceptual design, the implementation of center of gravity and associated weight estimation in an computer aided aircraft conceptual design system, whose data organization is object oriented, was studied
摘要為了在飛機概念設計階段有效而便捷地評估方案重量和靜穩定裕度等特性,研究了在一個按照面向對象方式進行數據組織的計算機輔助飛機概念設計系統中進行重心及相應重量估算的措施。Traditional tariff analysis applies partial equilibrium method with one important hypothesis that products are different. this article proposed a reasonable supplement to the hypothesis to show how the difference arise and developed a model using available trade data to measure present degree of tariff barrier
本文通過對傳統關稅分析中採用的局部均衡模型中產品差異假設的分解和對假設的合理補充,提出一種採用可獲得數據估算非關稅壁壘程度的計量模型。This paper states on the problems in water preventing and draining of highway tunnel of loess in gansu province and near area. firstly, it discusses the method to analyze and calculate the affect of groundwater characteristic, estiniate of tunnel water quantity and the varying of water contained in loess to the stability of surrounding rock mass according to the principle of groundwater leaking, hydraulic penetrating principle, groundwater dynamic law, groundwater flowing modulus low and so on
本文針對甘肅省內外部分黃土公路隧道防排水方面存在的問題,首先根據黃土層地下水運規律,按水力學滲流原理並應用地下水動力學法和地下水徑流模數法等方法,探討了黃土層地下水情特性、隧道滲透涌水量估算和水對圍巖穩定性影響的分析計算方法。Redesign and realize the clear up and upfront work of data source according to new demands is unbearable on waste of time and manpower. the article described development and analysis status of ubisp ( united business information service platform ) system, analyzed the extract strategy and optimized algorithm of etl rules, discussed the data capacity and granularity selection in dw modeling, raised an idea of how to sub divide dimension table and fact table ' s granularity by compound primary key aimed at above question
本論文介紹了該電信公司經營分析數據倉庫系統的開發與研究現狀,分析了etl規則的抽取策略和優化演算法,討論了數據倉庫建模中的數據量估算和粒度選擇,並針對上面的問題提出了利用復合主鍵和橫表縱表之間的轉換實現維表和事實表粒度向下細分的思想,即在不修改源數據提供系統的情況下,最大限度的利用已有的數據實現新的需求。分享友人