Gives a dynamic mathematical model of a typical type of multiple discs hydroviscous drive device which has been proved to be correct through tests.Utilizing the method of root-locus analysis the dynamic performance of...Gives a dynamic mathematical model of a typical type of multiple discs hydroviscous drive device which has been proved to be correct through tests.Utilizing the method of root-locus analysis the dynamic performance of this device is studied according to the model.Theoretical analysis and test re- suits show that the dynamic performance of the object of study can be greatly improved by speed negative feedback.展开更多
Sticker model is one of the basic models in the DNA computer models.This model is coded with sin-gle-double stranded DNA molecules.It has the following ad-vantages that the operations require no strands extension and ...Sticker model is one of the basic models in the DNA computer models.This model is coded with sin-gle-double stranded DNA molecules.It has the following ad-vantages that the operations require no strands extension and use no enzymes; Whats more, the materials are reusable. Therefore it arouses attention and interest of scientists in many fields. In this paper, we will systematically analyze the theories and applications of the model,summarize other sci-entists contributions in this field,and propose our research results.This paper is the theoretical portion of the sticker model on DNA computer, which includes the introduction of the basic model of sticker computing. Firstly, we systemati-cally introduce the basic theories of classic models about sticker computing; Secondly, we discuss the sticker system which is an abstract computing model based on the sticker model and formal languages; Finally, extend and perfect the model,and present two types of models that are more exten-sive in the applications and more perfect in the theory than the past models: one is the so-called k-bit sticker model,the other is full-message sticker DNA computing model.展开更多
文摘Gives a dynamic mathematical model of a typical type of multiple discs hydroviscous drive device which has been proved to be correct through tests.Utilizing the method of root-locus analysis the dynamic performance of this device is studied according to the model.Theoretical analysis and test re- suits show that the dynamic performance of the object of study can be greatly improved by speed negative feedback.
文摘Sticker model is one of the basic models in the DNA computer models.This model is coded with sin-gle-double stranded DNA molecules.It has the following ad-vantages that the operations require no strands extension and use no enzymes; Whats more, the materials are reusable. Therefore it arouses attention and interest of scientists in many fields. In this paper, we will systematically analyze the theories and applications of the model,summarize other sci-entists contributions in this field,and propose our research results.This paper is the theoretical portion of the sticker model on DNA computer, which includes the introduction of the basic model of sticker computing. Firstly, we systemati-cally introduce the basic theories of classic models about sticker computing; Secondly, we discuss the sticker system which is an abstract computing model based on the sticker model and formal languages; Finally, extend and perfect the model,and present two types of models that are more exten-sive in the applications and more perfect in the theory than the past models: one is the so-called k-bit sticker model,the other is full-message sticker DNA computing model.
