The stability of sg get well improved by slightly increasing multiplicity . then for the experimental data produced by r + p and k + p collisions at 250 gev / c , the four moments which describe event rapidity gaps fluctuations , are calculated 接着，用250gev c能量下~ + p和k ~ + p碰撞多粒子产生的实验数据，我们计算了所有四个表征事件快度间隔起伏的矩s _ q ， (
Making analogy with the " " spin - glass " phase in polymers , peschanski put forward the idea that there exists non - thermal phase transition in multiparticle systems . a parameter xq has been introduced to characterize the non - thermal phase transition 通过类比聚合体中的“自旋玻璃相” ， peschanski提出随机级联的多粒子产生过程中存在非热相变，并提出表征相变的特征参数_ q的公式。
The knowledge of these initial collision is crucial for any theoretical treat - ment of a possible parton - hadron phase transition , the detection of which being the ultimate aim of all the efforts of co1liding heavy ions at very high energies . the parton model allows to calculate inclusive cross sections as a convolution of any elementary cross section with parton distribution functions , assuming that factorization works . the disadvantage is that tlle first interaction is coilsidered quite differently from the subsequent ones in case of multiple scattering 其它的弦模型在计算几率时，忽略了入射能量在pomeron之间的分配，破坏了能量守恒，而且把pomeron作为全同粒子处理，即pomeron之间是不可区分的；然而在处理粒子产生时，这些模型虽然考虑了能量守恒，但是第一个pomeron的粒子产生与其它的pomeron很不一样? ? pomeron在粒子产生时不是全同的。
This dissertation focuses on how to develop a high performance damping mechanism based on multi - energy transitions , which is independent or little dependant with the viscoelasticity of polymer matrix . three sections are mainly included in this dissertation as follows : chlorinated polyethylene ( cpe ) / piezoelectric ceramic ( pzt ) / vapor grown carbon fiber ( vgcf ) composites ; cpe / 2 , 2 ' - methylene - bis - ( 4 - methyl - 6 - cyclohexylphenol ) ( zkf ) / vgcf composites ; organic hybrids made from cpe and small molecules cpe / pzt / vgcf composites : the damping composites of multi - energy transitions mechanism were produced by mixing pzt and vgcf into cpe . in this system , the mechanical vibration energy that was transmitted to cpe was found to convert into joule ' s heat through conduction paths between vgcf in the polymer matrix , so the vibration fades away 本论文主要包括三个方面的研究内容： ?氯化聚乙烯( cpe ) /压电陶瓷( pzt ) /气相生长碳纤维( vgcf )复合材料； ? cpe /双[ ( 2 -羟基- 3 -环己基- 5 -甲基) -苯基]甲烷( zkf ) / vgcf复合材料； ? cpe基有机小分子混杂型复合材料cpe / pzt / vgcf减振复合材料：利用压电和导电填料填充高聚物基体，当复合材料受到机械振动时，通过高聚物基体将机械振动能传递到压电陶瓷粒子上，利用压电陶瓷的压电效应，将机械能转换成电能，则电流在导电粒子产生的回路中流动，由于导电回路具有一定的电阻，所以电能又转变成热能耗散掉，从而起到减振的目的。
