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。
The posterior ethmoid cells are easily identified as they are larger, wider, and fewer in number than anteriorly
后組
篩竇的氣房一般大而寬，在
數量上也少於前組
篩竇，容易確定。
Objective : to explore anatomical variations of the anterior ethmoid sinus in chinese people and to provide reference for clinical management
摘要目的：探討國人前組
篩竇的相關解剖變異，為臨床手術提供參照
數據和資料。
Firstly, we study the construction of emotion - speech template database, and analyze the common features such as pitch, energy and formant. after choosing the useful features by using fuzzy entropy effectiveness analysis, we get better performance with the application of neural network. in addition, we propose some more efficient features such as speech rate, pitch slope, mel - frequency cepstral coefficients and its transient parameters, and design a processing model based on vector quantization for cepstral features to fusing different features
本文首先介紹了情感語音
數據庫的建立情況，然後研究了基音頻率、振幅能量和共振峰等目前常用的情感特徵在語音情感識別中的作用，並且通過一種基於模糊熵的特徵有效性分析方法進行了有效特徵的
篩選，應用人工神經網路建立了初步的語音情感識別模型，經過實驗發現特徵
篩選后系統的識別效果有著一定程度的提高。
Sifting out kernel functions using fourier transform
利用傅立葉變換
篩選核函
數的方法
2 - e4 and s2 is induced respectively by 8 - ag and 5 - brdu with different drug concentration to make them deficient in hypoxanthine - guanine phosphoribosyl transferase ( hgprt ) and in thymidine kinase ( tk ) respectively and renamed 2 - e4 - a and 82 - 6. their antibodies " isotypes are tested by goad anti - mouse isotype regent
取馴化好並處于對
數生長期的2 - e _ 4 - a和s _ 2 - b細胞，再常規融合和
篩選，三次克隆化后得穩定分泌雙特異性抗體的雜交-雜交瘤細胞株6株。
Research on petroleum slotted pipe by pcl - 839 stepping motor control card
839步進電機控制卡開發石油
篩管的
數控系統
7. at the first time, the reporter dye, fam was linked to the 5 " - end of the oligonucleotides of the probes, and the tamra was located at the 3 " - end as quencher dye. we use camv35s and fmv promoter, nos terminater, mark gene nptii, and aim gene pat, epsps and cryla ( b ) genes as target sequences, design pairs of sp
7 、首次以fam熒光素標記探針5 』端作為發光基團，以tarma標記探針3 』端為淬滅基團，以camv35s 、 fmv啟動子、 nos終止子、標記基因nptll 、抗除草劑基因epsps 、 pat 、抗蟲基因cry1a ）為檢狽目標，設計、
篩選出特異性引物和探針，優化實驗參
數，建立了轉基因植物通用性熒光pcr定性檢測方法體系。
However, most screening tests bring with them a certain amount of errors.
然而大多
數的
篩選測驗本身會出現一些錯誤。
Optimum design parameter of mud liner motion shale shaker
鉆井液直線振動
篩參
數的優化設計
Many patient taxonomists from several european countries and america then sieved through litres of muddy gravel with microscopes and pairs of tweezers to see what treasures had been captured
來自歐洲幾個國家和美國的許多分類學家耐心地用顯微鏡和鑷子對
數以升計、沾滿爛泥的沙礫進行
篩分，來看看什麼樣的寶貝被鏟了上來。
He and a friend used math to develop a system for picking winners in horseracing and started selling their " stable - boy selections " tip sheets until they were shut down for not having a license
他和一個朋友利用
數學知識開發了一個在賽馬比賽中選拔冠軍的識別系統，然後開始推銷他們的"馬童
篩選器"的內部消息傳單，但因為無許可證被迫關停。
The wavelet coefficients are selected by human visual system ( hvs ) to ensure the transparence of watermarking
同時基於人眼視覺系統，對嵌入系
數進行
篩選以保證水印的透明性。
Back - analysis method and computing program of damage parameters by the curve of stress - strain by uniaxial tension and compression test was made out. 5. by the damage evolving relation proposed the flexural process of the trisection specimens of wet - sieved and fully - graded concrete was numerically simulation
5 .根據本文提出的損傷模型和損傷參量演化關系，分別對濕
篩混凝土和全級配混凝土試件進行了三分點加載
數值模擬。
The method of preparing the uniform coating, the techniques of thermal bonding and hydrogen plasma treatment was investigated experimentally. the optimum coating method and technological parameters was summarized
重點探索了塗覆金剛石納米塗層的方法、實現金剛石與金屬鈦的熱粘接工藝以及氫等離子體處理的工藝參
數，
篩選出了在本實驗系統中的最佳方法和工藝條件。
Five basic properties of the sieve functions of the prime twins were studied
摘要研究並給出了孿生素
數篩函
數的五條基本性質。
Gets the list of supported cultures filtered by the specified
參
數篩選的支持的區域性列表。
Filtering data using run - time parameters
使用運行時參數篩選數據
