linear trend 中文意思是什麼
linear trend
解釋
線性趨勢線-
Growth can be represented by a linear or log linear trend.
增長可以用線性或對數線性趨勢來表示。 -
This extraordinarily large forecast suggests, however, that we must be more careful in forecasting with a parabolic curve than we are when using a linear trend.
然而，這個龐大的預測數字說明，使用拋物線做出預測比使用直線趨勢做出預測必須更加慎重。 -
The study gets the following conclusions : 1 ) inverted nine - spot pattern water flooding is used in the early stage of the development, while linear water flooding is used in the later stage ; 2 ) well array is parallel to the fracture trend ; 3 ) the well arrangement of barycentric position method is a suitable pattern adjustment method in the later period of the development in low permeable oil fields
研究認為，一是油田開發初期注采方式採用反九點法面積注水，開發後期調整為線狀注水方式；二是井排方向與裂縫走向平行；三是「重心位置」布井方式對低滲透油田開發後期是較為適合的井網調整方式。 -
The organization of this paper is as follows. in chapter 1, a concise brief is done of stability for large - scale systems. and a summarization is made of research status and development trend for linear discrete large - scale systems
本文的內容安排如下：第一章對大系統穩定性作了簡單概述，對線性離散大系統的穩定性分析的研究現狀和發展趨勢進行了綜述。 -
According to the numbers of segmentations, dts has multi scale feature and can reflect different trend similarity of time series under various analyzing frequency. 2 ) an enhanced algorithm, based on dual threshold value, and the conception of sub - series linear are proposed. relative point average error is used to measure the linear degree of sub series, which produced by bottom _ up algorithm
對應時間序列線性分段數目的不同，序列趨勢距離具有基於時間的多尺度分析特性，可以有效反應不同分析頻率下時間序列的相似程度； 2 ）採用相對點平均殘差衡量bottom _ up演算法劃分的子序列線性度，提齣子序列線性度概念和一種雙誤差閥值改進演算法，大大提高了趨勢序列模型的準確性。 -
Testing linear regression relationship via trend analysis of residuals
基於殘差的趨勢性分析檢驗線性回歸關系 -
According to the strategy of the communications and aim of social economy, forecast the demand of communications talents in 2010 through many forecast methods. for example : straight - line trend methods, self - adaptation filter methods, linear return methods and etc. based on above all, put forward some advises on the development of talents
根據交通事業發展戰略及社會經濟發展的目標，運用直線趨勢預測法、自適應過濾法、一元線性回歸法等多種預測方法對2010年交通專門人才需求進行了預測。 -
Annual precipitation series about 50 years is stable and no period ; further, the climate drying and desertification are n ' t caused directly by the decrease of precipitation during the period of the research according to the relational analysis among precipitation temporal - spatial change, runoff, evaporation, potential evapotranspiration and soil water ; longyangxia reservoir which was built in 1986 does n ' t have influence on precipitation up to now ; but annual temperature series in gonghe is unstable, having a linear upward trend, and it increases about 0. 0247, 0. 0422 and 0. 0272c per year, and temperature rise must be having an influence on desertification, but there is a very little temperature change, so that the effect is very small ; annual potential evapotranspiration series is stable too, so climate change has little influence on plant water consumption. 2
在青海共和盆地，近50年的年降雨量序列是平穩的、無周期，其時空變化與徑流、蒸發、潛在蒸散和土壤水分的關系表明，氣候乾燥和嚴重的荒漠化不是由於降雨量減少直接引起，龍羊峽水庫對共和盆地年降雨量變化沒有影響；但是年氣溫序列是非平穩的，茶卡、恰卜恰和貴南的年氣溫平均每年升高0 . 0247 、 0 . 0422和0 . 0272 ，且氣溫升高2 ，年潛在蒸散增加57mm ，盆地內氣候逐漸變乾燥，但影響比較小；由於歷年潛在蒸散序列是平穩的，因此氣候變化對盆地的作物潛在蒸散的影響在研究期內是較小的。 -
Hereafter being the forecasting to the old age population coefficient, this text has been applied two kinds of regression model, namely univariate linear model and logarithmic model, and thought over three kinds of economic speed of development ( high, middle, low ) in the logarithmic model to forecast the old age population coefficient respectively. finally, by analyzing the forecasted value and the inertia law of population development, the paper points out the lengthening of the population equally expected life span will push forward the aging of population step by step to the advanced age development ; the development trend of the population aging continues to be clear, and just appears a stage characteristic ; furthermore, the population aging speed in rural area will be faster than in the city
此後是對老年人口系數的預測，本文應用了兩種回歸模型，即一元線性回歸模型和對數擬合模型，並在對數擬合模型中考慮了經濟發展速度的高、中、低三種方案，對老年人口系數分別進行預測；最後在分析預測值和人口發展慣性規律基礎上對山東省未來人口老齡化發展趨勢作了較深入分析，指出人口平均預期壽命的不斷延長，將逐步推動人口老齡化向高齡化發展；人口老齡化繼續發展趨勢明顯，且呈現出階段性特徵；農村人口老齡化速度將快于城市。 -
Unit root test for seasonal time series with seasonal linear trend
的時間序列模型的建立與分析 -
At the same time, built the data warehouse system with the sale subjects as the example, built an many - dimensions database using the online analysis tool of microsoft sql sever. finally built a two linear forecasting models based on smoothing of time queue about analysis of sale trend, and verified the design analysis of this paper partly
同時，建立了以商品銷售主題為例的數據倉庫系統；並藉助microsoftsqlsever聯機分析工具，建立了以商品分析主題為例的多維數據庫，從不同視角展現不同匯總程度的數據；最後，建立了基於時間序列的二次指數平滑線性預測模型，進行商品銷售趨勢的分析，部分驗證了本文的設計分析。 -
This paper introduces all kinds of calculation methods of settlement and the popular research theory at present, expresses the rheology theory and its developing trend in detail. based on the rheology theory, the theory of linear - visco - elastic - plastic model is put forward to forecast the long term creep settlement of soft soil in the metallurgy industrial region at the backward position of haihe river in tianjin
本文詳細介紹了國內外關于沉降計算的研究現狀，以及當今流行的研究理論，著重介紹了流變理論的研究現狀及其發展趨勢，並在此基礎上提出了用線性粘彈塑性模型理論來預測天津市海河下遊冶金工業區軟土長期蠕變。 -
This paper analyzed the noniinear, non - - equilibrium, fractai and chaos characteristics of chinese stock market, identified, estimated and tested three fractionaliy integrated time series models the first chapter " introduction to the evoiution of stock market investment theory " summarized the nine important representative theories of different stage, summed up the trend of the development that the stock market investment theory is evotving from static portfplio theory to dynamic time series modei, from univariate modei to muitivariate modei, from linear modei to nonlinear complicated model and from traditional modei to fractai modei, paved the way for following discussion
實際情況卻是股票市場影響因素以及各因素之間相互作用關系復雜，受投資者個人及群體心理因素影響明顯，股票的波動以及收益與風險的關系常常是非線性的，非均衡的，收益的方差和均值是自相關的、不穩定的，收益的波動符合分形布朗運動，表現出分形和混沌的特徵。本文分析了股票市場的波動的非線性、非均衡、分形和混沌特徵，建立並檢驗了幾種股票的分形差分異方差時間序列模型。 -
Use the quantitative analysis tools to valuate use trend extrapolation to forecast sales revenue, linear regression to forecast the future cash flows, tow ? stage discounting cash flow model to valuate the physical assets of zte co. and black ? scholes option pricing model to valuate its growth opportunity or real option. and from the qualitative perspective analyze the reasons for deviations from the enterprise value
用趨勢外推法預測銷售收入，用線性回歸法預測未來現金流量，用兩階段折現現金流量模型評估中興現有資產價值;用布萊克-斯克爾斯期權定價模型預測在競爭條件下中興的增長機會價值;在結尾處，從定性分析的角度研究產生估價偏差的原因。 -
However, the linear methodlogy of cmt has limitations inherently as they are invalid to capture complicated “ patern ” in stock price. so, a new research trend, from the point of nonlinearity and evolution instead of in a linear view, emerges
然而，經典資本市場理論的線性化分析方法有其內在的局限性，它不能解釋現實金融市場資產價格變化的復雜多變的行為，在這樣的背景下，資本市場的研究出現了從線性轉向非線性的分析。 -
This makes wide - band digital receiver become a certain trend in the detecting and intercepting of radar signals field. in this dissertation, the parameter estimation algorithms for the monopulse signal, the linear frequency modulation signal and the phase coded signal are studied. according to the algorithms, a hardware platform is set up and tested using tms320c6713b mainly
本文對單脈沖信號、線性調頻信號和相位編碼信號這三種常見的雷達信號的參數估計演算法作了研究和驗證，並根據這些演算法要求，立足於當前數字信號處理晶元（ dsp ）的發展，基於tms320c6713b構建了一個信號參數估計的硬體平臺。 -
This paper documents significant negative announcement effects of seasoned equity offerings in china for the period 1999 - 2002. then we examine the linear regression model. the multivariate regression results show growth opportunities, management holding stock proportion, circulating stock capital and stock market trend have significant positive effect on ar, and announcement year has significant negative effect on ar
對本文模型進行回歸分析的結果顯示，我國上市公司的股權分裂對公告日異常收益率有一定的負面影響；上市公司成長性、高管持股比例、流通股本規模及大盤走勢與公告日異常收益率顯著正相關；公告年度與公告日異常收益率顯著負相關。 -
The road tunnel ventilation system has strong non - linear characteristic and it is difficult to gain the precise mathematical model by using the traditional linear control theory, therefore, the modern control methods such as the fuzzy control become the trend for the road tunnel ventilation control. however, there are some difficulties with the establishment of the fuzzy membership functions and the rule base
公路隧道通風系統具有很強的非線形特徵，傳統的線性控制理論難以獲得精確的數學模型，因此模糊控制等現代控制方法成為公路隧道通風控制的趨勢，但模糊控制存在隸屬函數、控制規則難以確定的問題。 -
In this paper, the development trend of micro - electronics equipment, the progress situation of precision work stage for laser photolithography equipment and the research and evolution of magnetic levitation technology in china and other countries are discussed generally. the main function, the demand of technical index and key technology of laser photolithography work stage are introduced simply. the magnetic levitation technology and the work principle of linear motor are stated, and the design and analysis method of mechatronics cad / cae for magnetic levitation precision stage is presented
本文綜述了微電子製造設備發展趨勢及其精密工作臺如光刻機工作臺的國內外發展現狀及磁懸浮技術研究進展，簡要介紹了光刻機工作臺主要功能、技術指標要求、組成及關鍵技術，概述了磁懸浮技術及直線電機驅動的工作原理，著重研究用機電一體化cad cae集成技術設計、分析磁懸浮精密定位工作臺的方法，闡明了應用cad cae技術研製磁懸浮精密定位工作臺的現實意義。 -
Linear trend and abrupt change of sea ice in arctic and antarctic withits relation to atmospheric circulation
北極海冰的長期變化趨勢及其與大氣環流的聯系
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