As environment laboratory has huge space and wide temperature control range, the controlled object is a large time-delay and nonlinear system, so normal PM control method cannot make temperature controlprocess have s...
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ISBN:
(纸本)9781538645093
As environment laboratory has huge space and wide temperature control range, the controlled object is a large time-delay and nonlinear system, so normal PM control method cannot make temperature controlprocess have satisfied dynamic process and steady state. In order to solve the problem, adaptive fuzzy PM control method is presented based on the modeling of the environment laboratory, the method can modify the PM parameters on line and meet the requirement of parameters turning in temperature controlprocess. The simulation result shows that the model and adaptive fuzzy PM control method has the advantage of fast response, less overshoot and great control effect.
In this work we investigate the design and application of advancedcontrol strategies to a chromatographic process. For the Multicolumn Countercurrent Solvent Gradient Purification process (MCSGP), a nonlinear process...
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ISBN:
(纸本)9781467386906
In this work we investigate the design and application of advancedcontrol strategies to a chromatographic process. For the Multicolumn Countercurrent Solvent Gradient Purification process (MCSGP), a nonlinear process, described by a periodic profile, we develop a step-by-step procedure that enables the seamless development of approximate explicit advanced MPC controllers for such systems. The designed controllers assure optimal operating conditions, periodic input profiles and continuous process monitoring.
Finite element models of a large coach and two different dual-wave barriers which utilized on highway normally were established,to study the coach-barrier collision *** solver was used to simulate the dynamic response...
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ISBN:
(纸本)9781509001668
Finite element models of a large coach and two different dual-wave barriers which utilized on highway normally were established,to study the coach-barrier collision *** solver was used to simulate the dynamic response process with speed of 60km/h and collision angle of 20°.The results show that the protective effect of the two types of barriers on coachbarrier collision is significantly different,lost control of the coach can be corrected to a certain extent through reasonable design;the front-lower end of coach generates quite severe deformation,but does not invade the occupant's survival space;the barrier absorbs more than half of the coach kinetic energy in the collision process,which can reduce the impact of the occupant and the severity of road accidents.
IEC 61850 is the new standard for communications in substations that defines process bus and substation bus communications allowing the development of new distributed applications for protection, control and automatio...
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ISBN:
(纸本)0615132804
IEC 61850 is the new standard for communications in substations that defines process bus and substation bus communications allowing the development of new distributed applications for protection, control and automation. The paper describes the different communications related to the implementation of the new standard. It also discusses performance requirements for the various substation functions.
The article presents the process of design of an omnidirectional speaker for the automation of the process of acoustic measurements of reverberation time, sound insulation and sound absorption of materials. It is sugg...
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ISBN:
(纸本)9781538625569
The article presents the process of design of an omnidirectional speaker for the automation of the process of acoustic measurements of reverberation time, sound insulation and sound absorption of materials. It is suggested to design and use a remote control of the omnidirectional speaker, which allowed to automate the measurement process.
Source code security is the foundation of software security, so it is of great significance to test source code defects before the software system goes online. This paper first elaborated the causes of source code sec...
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ISBN:
(数字)9781665458641
ISBN:
(纸本)9781665458641
Source code security is the foundation of software security, so it is of great significance to test source code defects before the software system goes online. This paper first elaborated the causes of source code security defects, and introduced the identification methods and repair measures of source code vulnerabilities in detail. Finally, it described the testing process management of source code. This paper has a certain practical guiding significance for source code vulnerability testing.
on the basis of analyzing and explaining the concept of workflow, this paper analyzes the open source workflow engine jBPM (Java Business process Management) from the perspectives of architecture, database table struc...
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ISBN:
(纸本)9781538645093
on the basis of analyzing and explaining the concept of workflow, this paper analyzes the open source workflow engine jBPM (Java Business process Management) from the perspectives of architecture, database table structure, authority management and so on. Combining the financial approval process of the enterprise, a prototype of financial approval management system is developed, and the main design ideas and key technologies to be realized are expounded in details. The trial application of the system shows that the jBPM workflow engine has obvious advantages in such aspects as business process customization, automatic management processcontrol, scalability and security. It can meet flexible and changeable needs of the business process, and does improve the efficiency of financial approval, which has guiding significance in engineering practices.
The processautomation System for the plate mill shearing line was introduced in this paper. We mainly designed the hardware and software of the processautomation system and described the detailed functions of this s...
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ISBN:
(纸本)9783037853443
The processautomation System for the plate mill shearing line was introduced in this paper. We mainly designed the hardware and software of the processautomation system and described the detailed functions of this system. The advanced features of this system are producing superior results in mill world wide.
Most control and process engineers face a large amount of complex processes found in industry and they usually need tools for assessing their performance. This paper deals with the assessment of real industrial contro...
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ISBN:
(纸本)9781457700187
Most control and process engineers face a large amount of complex processes found in industry and they usually need tools for assessing their performance. This paper deals with the assessment of real industrial controlprocesses of a pilot process plant using standard control performance monitoring indices. The control loops have been tuned using the well-known Ziegler-Nichols method. A comparison between the implemented indices with those based on the APC (advancedprocesscontrol) PCS7 library is performed.(1)
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