By increasing the number of subchain and length, the high molecule flocculant with higher efficient ( VCG) was prepared by chitosan with vanillic aldehyde, and the best condition was determined. 利用壳聚糖与香草醛之间的希夫碱反应,对壳聚糖的分子进行修饰,增加其支链数目与长度,制备出更为高效的天然高分子絮凝剂VCG,并初步确定了反应条件。
In this paper a conception of supply subchain is introduced and based on the analyses of the characteristic of the supply subchain, one simple model is support. 提出供应链子链的概念,对子链的特点和组成进行了分析,阐述了以子链为单位进行考察和评价的重要性,并提出了一种简单的评价的模型。
Then, the effect of the setting of the same side joints on two adjacent subchains on the calculation of subchain interference test is investigated, and the formulas to determine the distance between the same side joints are derived aiming to reduce the calculation complexity. 其次分析了相邻支链同侧铰链点的布位对支链干涉检验计算量的影响,并从降低运算复杂性的角度提出了确定同侧铰链点间的距离公式。
New Theorems on a Rigid Subchain 关于刚性子链的新定理
To the question of the demand in different structure of internal-force-closed self-adaptive mechanism, a new method of type synthesis of kinematical chains is finished systematically, that is Contracted Graph and Subchain Method. 针对内力封闭自适应机械多方案设计的需要,系统地完善了一种新的型综合方法&胚图支链法。