Secondly , it presents the metod of implementing this subject based on the task of web mining , which combines neural network with boosting arithmetic to text classification 其次,根據(jù)web挖掘的任務(wù),給出了本課題的實(shí)現(xiàn)方法:神經(jīng)網(wǎng)絡(luò)與boosting算法相結(jié)合進(jìn)行文本分類(lèi)。
The metod involves a proteolytic treatment , followed by a specific separation and purification . special processes are implemented in order to eliminate any kind of viruses in the final product 硫酸軟骨素作為一種珍貴的保健品和美容產(chǎn)品的原料,具有良好的抗衰老功能,主要用于生產(chǎn)藥劑藥片。
2 ) the coupled - mode equation analyzing the characteristics of fiber grating is deduced step by step . two methods - the transfer matrix metod and the runge - kuttar method are compared , which are often used to solve the coupled - mode equation 2 )詳細(xì)推導(dǎo)用于分析光纖光柵特性的耦合模方程,重點(diǎn)對(duì)兩種解耦合模方程的方法進(jìn)行比較:龍格-庫(kù)塔法和傳輸矩陣法。
In this study , through research on the organization metod , collection of information and main contents , goal and overall thought for developing the technical information system of coal industry in china , an effective way to meet the demand of the technical information for the enterprise group and a thought to construct the technical information system with industrial characteristic are provided based on the industry association 摘要本文通過(guò)對(duì)開(kāi)發(fā)中國(guó)煤炭工業(yè)技術(shù)信息系統(tǒng)的總體思路、目標(biāo)、主要內(nèi)容及信息收集、組織方法的研究,提供了一種基于行業(yè)協(xié)會(huì)建設(shè)行業(yè)特色技術(shù)信息系統(tǒng)的思路和滿(mǎn)足遠(yuǎn)離中心城市企業(yè)集團(tuán)技術(shù)信息需求的有效途徑。
Abstract : the hot wire anemometer and the ensemble average method are used to measure and study the dispersion turbulent transient feature in a closed cylindrical explosion bomb . the comparison of the dispersion turbulent parameters from different shapes of closed explosion bombs is presented . the relation between errors and numbers in dispersion turbulent measurement with the ensemble average metod is discussed 文摘:采用熱線風(fēng)速儀和系綜平均法測(cè)定和研究了封閉圓柱形粉塵爆炸罐內(nèi)揚(yáng)塵湍流的瞬態(tài)特性,并與球形爆炸容器內(nèi)已測(cè)定的揚(yáng)塵湍流瞬態(tài)特性進(jìn)行了比較,對(duì)系綜平均法用于揚(yáng)塵湍流的測(cè)量誤差與測(cè)量次數(shù)的關(guān)系進(jìn)行了探討。