The extinction probabilities and growth of the multitype branching chains in random environments 隨機環境中馬氏鏈的強大數定理
Discussion avp is nonapeptide with a six - aminoacid cycle and three aminoacid branched chains 討論avp是有6個氨基酸環和3個氨基酸支鏈的九膚。
The finest quality , most easily assimilated whey protein anywhere . delivers high levels of branched chain amino and glutamic acids , plus a potent blend of other amino acids 該乳清蛋白具有高品質和最易于吸收的特點,它是一系列復合氨基酸的高度濃縮產物。
We study the general model of branching processes in random environment and discuss their properties , moreover , we introduce the concepts of general subcritical branching chain in random environment and get their properties 摘要研究了隨機環境中分枝鏈的一般模型,并討論了它們的一些性質,在此基礎引入廣義的下臨界分支鏈的概念并得到了相應的性質。
By adopting the partial coordinates system and the turning angle of globe hinge the position of moving platform was described , and the influence on working space of parallel robot affected by factors of turning angle of motion pair , rod length and interference of branch chain etc . was analyzed 摘要選用局部坐標系和球鉸的轉角描述了動平臺的位置,分析了運動副轉角、桿長、支鏈干涉等因素對并聯機器人工作空間的影響。
The crystallization and melting behavior of mellocene - catalized branched and linear polyethylenes of low molecular weight was studied . it was found that the crystalline lattice of branched polyethylene is larger than that of linear polyethylene because of the existence of branched chains . the melting behavior of branched polyethylene is similar to that of linear polyethylene since the branched chains can not enter the lattice . however , the crystalline behavior of low molecular weight branched polyethylene is the same as that of high molecular weight linear polyethylene , but different with that of low molecular weigh linear polyethylene . kinetics theory analysis evidenced that the transition temperature of growth regime of the branched polyethylene is about 20 lower than that of linear polyethylene with the same molecular weight . it may be attributed to the existence of short branched chains 研究了金屬茂催化的低分子量支化聚乙烯和線性聚乙烯的結晶及熔融行為,發現支化聚乙烯的結構與線性聚乙烯相同為正交結構,但晶格略有膨脹.支鏈的存在對熔融行為影響不大,兩種聚乙烯的熔點均隨結晶溫度的升高而非線性增加,表現出低分子量樣品的共同特征.但支鏈的存在對結晶行為卻有很大的影響,主要是由于支鏈的存在降低了晶體的結晶速率從而影響結晶過程,使得低分子量的支化聚乙烯的結晶行為與高分子量線性聚乙烯的結晶行為相似而與低分子量的線性聚乙烯不同.動力學分析表明,低分子量的支化聚乙烯的結晶生長方式的轉變溫度比同等分子量的線性聚乙烯降低了約20
Single side birth death chain of order 2 in random environment is the extension of random walk in random environment , this paper discusses the recurrence , positive recurrence and null recurrence of single side birth - death chain of order 2 in fixed environment and random environment respectively based on the relation between birth death chain of order 2 and branching chain in time environment , and gives some sufficient and necessary conditions and sufficient conditions 摘要隨機環境中單邊二重生滅鏈是隨機環境中單邊隨機游動的推廣,本文利用單邊二重生滅鏈與依時分枝鏈的關系,分別給出了固定環境及隨機環境中二重生滅鏈的常返,正常返和零常返的幾個充要及充分條件,隨機環境中的單邊隨機游動的常返性的相應結果可以作為本文的推論。