modern control theory
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Author(s):  
Michael R. Gottfredson

AbstractContemporary research from around the world provides a body of consistent findings, making it an indispensable tool for the evaluation of crime theory. To be valid, general theories of crime must now be able to accommodate the results of this cross-national research. Modern Control Theory is used as an illustration for conceptualizing this body of research. Research from three critical areas relevant to general theories of crime are used to illustrate the critical nature of this research: (1) results from self-report surveys of offending and victimization; (2) research on the lack of effectiveness of criminal justice sanctions in affecting rates of crime and interpersonal violence; and (3) prevention research that is focused both on early childhood and on the settings in which much crime occurs. Each is consistent with the expectations of Modern Control Theory (Gottfredson and Hirschi in Modern control theory and the limits of criminal justice, Oxford University Press, New York, 2019) and each demands the attention of any general theory purporting to explain crime and interpersonal violence.


Author(s):  
Peshraw Salam ◽  
Dogan Ibrahim

Control engineering is one of the important engineering topics taught at many engineering based universities around the world in most undergraduate and postgraduate courses. The control engineering curriculum includes both the classical feedback based control theory and the state space theory. The modern control theory is based on the intelligent control algorithms utilizing the soft computing techniques, such as the fuzzy control theory and neural networks. Laboratory work is an important part of any control engineering course. The problem with the modern control theory laboratories is that it is essential to offer simple experiments to students so that they can easily put the complex theories they have learned in their courses into practice and see and understand the results. This paper describes the design of a low-cost fuzzy based microcontroller temperature control system using off the shelf products. The developed system should provide a low-cost fuzzy control experiment in the laboratories for students studying control engineering.


2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Yize Yang ◽  
Hongyong Yang ◽  
Fei Liu

With the development of communication technology, distributed cooperative controls of multiagent systems (MAS) have been applied in many fields. Based on the communication between the agents, multiple individual systems are composed of a distributed network. Since the function of the agents is different, the distributed network can be divided into many parts. For first-order/second-order dynamic MAS, group cooperation algorithms with the competition mechanism are proposed in this paper. By applying modern control theory and homogeneous theory, finite-time stabilities for the cooperation motion of dynamic MAS are analyzed. By studying the dynamic properties of agents, finite-time group consensus of distributed MAS based on directed topology is obtained. Finally, the system simulation results are given to illustrate the effectiveness of the conclusion.


Author(s):  
Michael Gottfredson ◽  
Travis Hirschi

Modern Control Theory and the Limits of Criminal Justice updates and extends the authors’ classic general theory of crime (sometimes referred to as “self-control theory”). In Part I, contemporary evidence about the theory is summarized. Research from criminology, psychology, economics, education, and public health substantially supports the lifelong influence of self control as a significant cause of problem behaviors, including delinquency and crime, substance abuse, school problems, many forms of accidents, employment instability, and many poor health outcomes. Contemporary evidence is supportive of the theory’s focus on early socialization for creation of higher levels of self control and other dimensions of the theory, including the roles of self control, age and the generality or versatility of problem behaviors, as well as the connections between self control and later teen and adult problem behaviors. The book provides methodological assessments of research on the theory, contrasting the control theory perspective with other developmental perspectives in criminology. The role of opportunity, the relationship between self and social control theory, and the role of motivation are addressed. In Part II, control theory is taken to be a valid theory and is used to explore the role of criminal sanctions, especially policing and prisons, and policies about immigration, as methods to impact crime. Modern control theory provides an explanation for the general lack of effectiveness of formal, state sanctions on crime and instead provides substantial justification for prevention of delinquency and crime by a focus on childhood. The theory effectively demonstrates the limits of criminal sanctions and the connection between higher levels of self control and positive life-course outcomes.


Author(s):  
Michael Gottfredson ◽  
Travis Hirschi

Research on self control from several disciplines demonstrates that relatively high levels of self control, emerging from childhood, create considerable personal advantages that accumulate throughout life. This chapter summarizes modern control theory and discusses directions for future development. It highlights the advantages of control theory, including disciplinary-free definitions of human nature and self control and the focus on childhood socialization. The potential for advances in measurement and application is described. Contributions of the theory to public policy are summarized. The role of higher levels of self control for lifelong advantages and the benefits of prevention are described as expectations of the theory worthy of considerable attention. The value of the theory for macro and comparative criminology is discussed.


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