Expanding the unknown function in a small perturbation parameter and using a successive expansion in a Taylor series for the water particle path and the period of a particle motion, the third order asymptotic expressions for the Lagrangian particle trajectories and the period of particle motion can be derived directly in Lagrangian form.

藉由一系列連續(xù)的Taylor級數(shù)展開h黄a片免费在线观看，於考量波動場中各流體質(zhì)點之運動軌跡與運動周期下99精品热，將已知的Eulerian解轉(zhuǎn)換成完全未知的Lagrangian形式解www久。

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In this dissertation, digital lock-in detection techniques under integer period sampling and non-integer period sampling are separately investigated (1) Under integer period sampling, digital signal sequence is acquired through sampling the measured signal, but digital reference sequence is acquired through mathematical operation, then digital lock-in detection can be realized by calculating crosscorrelation function of digital signal sequence and digital reference sequence Harmonic measure is also analyzed, and a method of measuring harmonic of a periodic signal under aliasing is put forward.

本文對使用采樣ADC把模擬信號轉(zhuǎn)換為數(shù)字信號并通過計算數(shù)字信號的相關(guān)函數(shù)來實現(xiàn)鎖定檢測的技術(shù)進(jìn)行了研究，在此基礎(chǔ)上設(shè)計了一個多功能的數(shù)字LIA并在一些科學(xué)實驗中進(jìn)行了應(yīng)用国产精选插逼视频。本文對整周期采樣和非整周期采樣時的數(shù)字鎖定檢測技術(shù)分別進(jìn)行了研究亚洲中文刮吗一本到午夜。(1)在整周期采樣時，對被測信號進(jìn)行采樣得到信號序列欧美性爱电影免费观看，而參考序列由數(shù)學(xué)運算得到欧美乱人伦高清视频中文字幕，通過計算信號序列和參考序列的互相關(guān)函數(shù)就可實現(xiàn)鎖定檢測。

With effective testing, the largest component of risk is from window period Risk is a function of window period times incidence of new infections Need to define window period Need to define incidenceUpdate by reference to test improvements

通過有效的檢測超碰97无码在线观看，最大的風(fēng)險因素來自窗口期風(fēng)險是新感染窗口期的一個作用需要定義窗口期需要定義發(fā)病率參考檢測技術(shù)的改進(jìn)而更新

The most straightforward test is to estimate a logistic regression of whether fraud is detected in that period as a function of lagged short interest and aggregate short interest (as a percentage of market shares).

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Window period risk is a function of the length of the window period and the frequency of new infections among donors Incidence can be measured among repeat donors by observationOther methods are necessary to measure incidence in first-time donors: if the incidence differs, then overall risk estimates must be adjusted.

窗口期風(fēng)險是獻(xiàn)血者窗口期長度和新發(fā)感染頻率的作用可在重復(fù)獻(xiàn)血者中通過觀察計算發(fā)生率必須采用其他方法檢測首次獻(xiàn)血者中的發(fā)病率：如果發(fā)病率不同日夲一区二区黄色视频播放，那么對整體風(fēng)險的估計必須加以調(diào)整。

On the basis of pollen analysis of surface sample in North China, polynomial function analysis method was applied to establish pollen climate response surface of Pinus, Betula, Quercus, Artemisia, Chenopodiaceae, Compositae, Picea, Ephedra, Gramineae in North China, therefore an easy and applicable method for reconstructing palaeoclimate and palaeoenvironment with data of fossil pollen was founded; Multi-analysis method was applied to analyse the principal elements of surface sample pollen in central Inner Mongolia Steppe, the assemblages of surface sample pollen in steppe area and its relationship with vegetation type were discussed with helps from spore-pollen analysis of a peat section in Chasuqi, Inner Mongolia and 〓C chronometer, fossil pollen data were obtained with high resolution on the peat section in Chasuqi. Vegetation succession and environmental changes since Holocene at resolution of 70 years were primarily reconstructed in south Mount Daqingshan and Plain Tumete. The changes in the area were copmared with those in the neighbouring areas during the same period. It was found that Holocene environmental change had undergone the following stages: cold-arid, temperate-wet, warm-wet, temperate-arid and cold-arid, and the climatical optimum period occurred in 5000-4100 aB.

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This paper has studied the physiological and biochemical changes during the period of forming strong buds of tree peony, and expect to provide academic basis for extending its view value and economic benefit . The main results are as the following:1 Under the field condition, Characteristics of photosynthesis of tree peony are very regular. From before blooming to the prophase of abducting buds that after blooming ,that is April,May and June,the net photosynthetic rate of tree peony is higher than the other period .It indicates that this period is very important for accumulating photosynthetic products of tree peony . So, if we want to get quality flower of tree peony ,it is very important to strengthen the management of tree peony cultivation and to ensure provide the fertilizer and water.2 From the middle ten days of June, with the time elapsing and with the environment conditions worsening, the characteristics of photosynthesis of tree peony decline deeply. But it is different among different tree peony breeds. For example , cv. Wu Long Peng Sheng can also has higher net photosynthetic rate, it indicates that cv. Wu Long Peng Sheng is super than the other two tree peony breeds when adapting the environment conditions and cv. Wu Long Peng Sheng has wide prospect to extend .3 The main factors of effecting the characteristics of photosynthesis are stomatal factor and non-stomatal factor ,that is the ability of photosynthesis of leaf cells. Under the environment of high light intensity in midsummer, if overshadow tree peony properly, then it can slow the declining of chlorophyll content, and increase the net photosynthetic rate and benefit for the accumulating of photosynthetic products.4 The content of soluble sugar in the root of tree peony is the highest among different organs during the period of forming strong buds . According to analyse ,we believe that the soluble sugar will compose starch then, and provide the solid base of material for the growth and development next year. It provide us strong academic basis of adopting the method of cultivating root and protecting root under thefield environment conditions .In other words ,it will help to increase the health level of the whole plant of tree peony and will be beneficial to forming quality tree peony flower if we strengthen the management of root. 5 To tree peony, the endogenesis hormone is important for its growth and development .In the prophase ,that is about the blooming of tree peony and the mid-summer ,IAA and ZR contents are higher and GA content is lower and its changes are very little, and the content of ABA is decreasing . This indicates that IAA and ZR act the important promote function for growth and development of tree peony in this period, and the function of GA is not important. Bur in the period of anniversary senescence of tree peony , the content of IAA and ZR begin to decrease ,while the ABA content has a certain rebound .T

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The dose of rHuEPO began to decrease in A group after eighth week, which had distinctive difference with that of B group (P.05). In A group , the dose of rHuEPO was just two thirds of that in B group during the sustain period.6. The kidney function of two group patiences was stable or improved during the treatment period ,which of A group was improved distinctly after treatment.

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