散裂截面 的英文怎麼說
中文拼音 [sǎnlièjiémiàn]
散裂截面
英文
allation cro section-
In this paper we discuss the minimum norm control problems of nuclear reactor systems governed by the monoenergetic steady - state isotropic transport equation
摘要討論核反應堆系統散射裂變截面的最小范數控制問題。Under the given condition, we have proved the existence and uniqueness of the minimum norm scattering - fission cross section control element, and have given its corresponding optimality conditions
在一定條件下證明了最小范數散射裂變截面控制變量的存在性和唯一性,並給出其相應的優化條件。Spallation cross section
散裂截面Experimental results indicated that the polypropylene fiber can improve the workability of concrete availably, and can increase the presentation quality of structures with the voids and pits decreased ; the cracks of beam are controlled effectively, the width and length of crack decreased, the dispersibility of crack in beam face improved, and the ductility of beam increased ; and the cracking load of reinforced concrete beam is increased, the amplify up to about 30 %, simultaneity the ultimate bear capacity increased
試驗研究表明,使用聚丙烯纖維后,能有效改善新拌混凝土的和易性,並能增強混凝土構件的外觀質量,減少構件表面蜂窩、麻面、氣孔、細小裂紋等;同時,在破壞試驗過程中發現梁的裂縫能得到有效控制,裂縫寬度減小,裂縫的發展高度降低,裂縫的條數增加,提高了梁截面的裂縫分散能力,增強了梁中混凝土的韌性;提高了鋼筋混凝土梁的開裂荷載,幅度可達30左右,增強了結構的延性,提高了結構的抗裂性能和屈服荷載。分享友人