The most important parameters which control the electrolytic process are the concentrations of zinc and sulfuric acid in the electrolyte. An expert control strategy for determining and tracking the optimal concentrati...The most important parameters which control the electrolytic process are the concentrations of zinc and sulfuric acid in the electrolyte. An expert control strategy for determining and tracking the optimal concentrations was proposed, which uses neural networks, rule models and a single loop control scheme. First, the process was described and the strategy that features an expert controller and three single loop controllers was explained. Next, neural networks and rule models were constructed based on statistical data and empirical knowledge on the process. Then, the expert controller for determining the optimal concentrations was designed through a combination of the neural networks and rule models. The three single loop controllers used the PI algorithm to track the optimal concentrations. Finally, the implementation of the proposed strategy were presented. The run results show that the strategy provides not only high purity metallic zinc, but also significant economic benefits.展开更多
Aiming at the plasma spraying process control, the control system model is developed on the basis of analyzing control parameters and coating properties and their correlation, and the corresponding control method and ...Aiming at the plasma spraying process control, the control system model is developed on the basis of analyzing control parameters and coating properties and their correlation, and the corresponding control method and regulations are also given. With the developed expert controller for plasma spraying process, stable spraying can be realized using ordinary spraying powder and the coating of compaction, homogeneity and high bonding strength can be obtained.展开更多
In order to stabilize the sinter chemical composition,the expert system for composition control based on adaptive prediction has been developed on the basis of modern control theory and artificial intelligence.It has ...In order to stabilize the sinter chemical composition,the expert system for composition control based on adaptive prediction has been developed on the basis of modern control theory and artificial intelligence.It has been verified by using real data at No.3 Sintering Plant of Anshan Iron and Steel Co.,and satisfactory results have been obtained.展开更多
S-surface control has proven to be an effective means for motion control of underwater autonomous vehicles(AUV).However there are still problems maintaining steady precision of course due to the constant need to adjus...S-surface control has proven to be an effective means for motion control of underwater autonomous vehicles(AUV).However there are still problems maintaining steady precision of course due to the constant need to adjust parameters,especially where there are disturbing currents.Thus an intelligent integral was introduced to improve precision.An expert S-surface control was developed to tune the parameters on-line,based on the expert system,it provides S-surface control according to practical experience and control knowledge.To prevent control output over-compensation,a fuzzy neural network was included to adjust the production rules to the knowledge base.Experiments were conducted on an AUV simulation platform,and the results show that the expert S-surface controller performs better than an S-surface controller in environments with currents,producing good steady precision of course in a robust way.展开更多
The coagulation process is one of the most important stages m water treatment plant, which involves many comlex physical and chemical phenomena. Moreover, coagulant dosing rate is non-linearly correlated to raw water ...The coagulation process is one of the most important stages m water treatment plant, which involves many comlex physical and chemical phenomena. Moreover, coagulant dosing rate is non-linearly correlated to raw water characteristics such as turbidity, conductivity, PH, temperature, etc. As such, coagulation reaction is hard or even impossible to control satisfactorily by conventional methods. Based on neural network and rule models, an expert system for determining the optimum chemical dosage rate is developed and used m a water treatment work, and the results of actual runs show that in the condition of satisfying the demand of drinking water quality, the usage of coagulant is lowered.展开更多
The general structure of expert system for controlling sintering process has been proposed. It includes knowledge base, inference engine, data acquisition system, learning system, knowledge base management system, exp...The general structure of expert system for controlling sintering process has been proposed. It includes knowledge base, inference engine, data acquisition system, learning system, knowledge base management system, explanation system and so on. The control functions consist of sintering chemical composition control centered on basicity and sintering process state control centered on permeability. The adaptive prediction of sintering chemical composition, the control strategy centered on basicity, the control strategy centered on permeability, the judgement of permeability and the prediction of burn through point were studied. The software of system, which includes about 1 000 expert rules, was successfully applied in off line control of sintering process in a sintering plant.展开更多
The current quality control system of judicial expertise in China For a long time in China,the administrative organization of justice has been subordinate to universities,Ministry of Public Health,Ministry of Public S...The current quality control system of judicial expertise in China For a long time in China,the administrative organization of justice has been subordinate to universities,Ministry of Public Health,Ministry of Public Security,the Procuratorate,the Court and National Security Agency.These administrative organizations are mainly in charge of the management of judicial expertise.The quality control system of judicial expertise can be classified into three levels.展开更多
On the basis of the first jig separation stage, the relational mathematical model related to ash content and the coutent of coal gangue with a density less than 1. 8 g/cm3 is established. With this model, the discharg...On the basis of the first jig separation stage, the relational mathematical model related to ash content and the coutent of coal gangue with a density less than 1. 8 g/cm3 is established. With this model, the discharge rate of reruse can be adjusted automatically and exactly by the conveutional PI regulator.The control stratedes for water capacity, air pressure, and feed capacity of the jig are introduced.Combined with the Expert system technology, jig expert system (JEP) is developed.展开更多
目的:观察基于名中医经验的中医辨证组方对老年慢性肾炎(CKD1-3a期)患者的有效性和安全性。方法:将84例老年慢性肾炎患者随机分成治疗组(42例)和对照组(42例)。治疗组采用西医基础联合中医辨证组方治疗;对照组仅接受西医基础治疗,疗程均...目的:观察基于名中医经验的中医辨证组方对老年慢性肾炎(CKD1-3a期)患者的有效性和安全性。方法:将84例老年慢性肾炎患者随机分成治疗组(42例)和对照组(42例)。治疗组采用西医基础联合中医辨证组方治疗;对照组仅接受西医基础治疗,疗程均为24周。观察两组治疗前后24 h尿蛋白定量(24 h UPQ)、肾小球滤过率(eGFR)等临床指标变化,以及疗效和安全性。结果:与本组基线比较,两组治疗后12、18、24周24 h UPQ均显著下降(P<0.01),且24周时治疗组优于对照组(P<0.01)。治疗组总有效率为67.57%,对照组总有效率41.67%,治疗组显著高于对照组(P<0.05)。将慢性肾脏病(CKD)3a期患者进行亚组分析提示,24周后治疗组eGFR较本组基线及同期对照组显著升高(P<0.01,P<0.05),而对照组治疗前后无显著变化。治疗组不良反应发生4例,对照组2例,两组无严重不良反应出现。结论:基于名中医经验的中医辨证组方治疗老年慢性肾炎(CKD1-3a期),可减少尿蛋白,提高临床疗效,对其中的CKD3a期患者可能具有改善eGFR作用,且安全性较好。展开更多
In the field of industrial process control,a fast-development platform for programmable logic controller(PLC)systems is designed in order to solve two main problems of rapid development of PLC control system and progr...In the field of industrial process control,a fast-development platform for programmable logic controller(PLC)systems is designed in order to solve two main problems of rapid development of PLC control system and programmability of controlling software.In the aspect of design,the platform is composed of hardware controlling and software monitoring and is taking industrial computer as the core.Under the Windows environment,the platform establishes the control instruction set,develops the configuration function and visual programming function of the monitoring software and it integrates PLC controller based on Visual Basic software.In order to achieve the function of data monitoring,it has realized the serial communication between computer and PLC by using RS-485 and RS-232 serial ports line communication.The platform designs the intelligent instruction scheduling strategy by studying the encoding and decoding rules of the communication instruction set.It proposes a method for rapidly developing control programs by adopting the expert control mode,which enables clients to develop and modify programs conveniently by importing instructions in a non-coded manner.After experimental testing,the platform is proved successful achieving both the rapid development of PLC control system and the rapid modification of monitoring software.展开更多
基金the State Key Development Program for Basic Research of China(2002CB312200)the National High Technology Research and Development Program of China(2007AA04Z193)
文摘The most important parameters which control the electrolytic process are the concentrations of zinc and sulfuric acid in the electrolyte. An expert control strategy for determining and tracking the optimal concentrations was proposed, which uses neural networks, rule models and a single loop control scheme. First, the process was described and the strategy that features an expert controller and three single loop controllers was explained. Next, neural networks and rule models were constructed based on statistical data and empirical knowledge on the process. Then, the expert controller for determining the optimal concentrations was designed through a combination of the neural networks and rule models. The three single loop controllers used the PI algorithm to track the optimal concentrations. Finally, the implementation of the proposed strategy were presented. The run results show that the strategy provides not only high purity metallic zinc, but also significant economic benefits.
文摘Aiming at the plasma spraying process control, the control system model is developed on the basis of analyzing control parameters and coating properties and their correlation, and the corresponding control method and regulations are also given. With the developed expert controller for plasma spraying process, stable spraying can be realized using ordinary spraying powder and the coating of compaction, homogeneity and high bonding strength can be obtained.
基金Supported by the National Natural Science Foundation of ChinaKey Program of the 8th Five-Year Plan of China。
文摘In order to stabilize the sinter chemical composition,the expert system for composition control based on adaptive prediction has been developed on the basis of modern control theory and artificial intelligence.It has been verified by using real data at No.3 Sintering Plant of Anshan Iron and Steel Co.,and satisfactory results have been obtained.
基金Supported by the National Natural Science Foundation of China under Grant No.50579007
文摘S-surface control has proven to be an effective means for motion control of underwater autonomous vehicles(AUV).However there are still problems maintaining steady precision of course due to the constant need to adjust parameters,especially where there are disturbing currents.Thus an intelligent integral was introduced to improve precision.An expert S-surface control was developed to tune the parameters on-line,based on the expert system,it provides S-surface control according to practical experience and control knowledge.To prevent control output over-compensation,a fuzzy neural network was included to adjust the production rules to the knowledge base.Experiments were conducted on an AUV simulation platform,and the results show that the expert S-surface controller performs better than an S-surface controller in environments with currents,producing good steady precision of course in a robust way.
基金This work was supported by the project 863 ofChina(No.863-511092)
文摘The coagulation process is one of the most important stages m water treatment plant, which involves many comlex physical and chemical phenomena. Moreover, coagulant dosing rate is non-linearly correlated to raw water characteristics such as turbidity, conductivity, PH, temperature, etc. As such, coagulation reaction is hard or even impossible to control satisfactorily by conventional methods. Based on neural network and rule models, an expert system for determining the optimum chemical dosage rate is developed and used m a water treatment work, and the results of actual runs show that in the condition of satisfying the demand of drinking water quality, the usage of coagulant is lowered.
文摘The general structure of expert system for controlling sintering process has been proposed. It includes knowledge base, inference engine, data acquisition system, learning system, knowledge base management system, explanation system and so on. The control functions consist of sintering chemical composition control centered on basicity and sintering process state control centered on permeability. The adaptive prediction of sintering chemical composition, the control strategy centered on basicity, the control strategy centered on permeability, the judgement of permeability and the prediction of burn through point were studied. The software of system, which includes about 1 000 expert rules, was successfully applied in off line control of sintering process in a sintering plant.
文摘The current quality control system of judicial expertise in China For a long time in China,the administrative organization of justice has been subordinate to universities,Ministry of Public Health,Ministry of Public Security,the Procuratorate,the Court and National Security Agency.These administrative organizations are mainly in charge of the management of judicial expertise.The quality control system of judicial expertise can be classified into three levels.
文摘On the basis of the first jig separation stage, the relational mathematical model related to ash content and the coutent of coal gangue with a density less than 1. 8 g/cm3 is established. With this model, the discharge rate of reruse can be adjusted automatically and exactly by the conveutional PI regulator.The control stratedes for water capacity, air pressure, and feed capacity of the jig are introduced.Combined with the Expert system technology, jig expert system (JEP) is developed.
文摘目的:观察基于名中医经验的中医辨证组方对老年慢性肾炎(CKD1-3a期)患者的有效性和安全性。方法:将84例老年慢性肾炎患者随机分成治疗组(42例)和对照组(42例)。治疗组采用西医基础联合中医辨证组方治疗;对照组仅接受西医基础治疗,疗程均为24周。观察两组治疗前后24 h尿蛋白定量(24 h UPQ)、肾小球滤过率(eGFR)等临床指标变化,以及疗效和安全性。结果:与本组基线比较,两组治疗后12、18、24周24 h UPQ均显著下降(P<0.01),且24周时治疗组优于对照组(P<0.01)。治疗组总有效率为67.57%,对照组总有效率41.67%,治疗组显著高于对照组(P<0.05)。将慢性肾脏病(CKD)3a期患者进行亚组分析提示,24周后治疗组eGFR较本组基线及同期对照组显著升高(P<0.01,P<0.05),而对照组治疗前后无显著变化。治疗组不良反应发生4例,对照组2例,两组无严重不良反应出现。结论:基于名中医经验的中医辨证组方治疗老年慢性肾炎(CKD1-3a期),可减少尿蛋白,提高临床疗效,对其中的CKD3a期患者可能具有改善eGFR作用,且安全性较好。
基金Supported by the International S&T Cooperation Program of China(No.2014DFR70280)Key Research and Development Project of Shanxi Province(No.201903D321012)+1 种基金Key Research and Development Project of Shanxi Province(No.201903D121023)Patent Promotion and Implementation Funding Research Project of Shanxi Province(No.20210521).
文摘In the field of industrial process control,a fast-development platform for programmable logic controller(PLC)systems is designed in order to solve two main problems of rapid development of PLC control system and programmability of controlling software.In the aspect of design,the platform is composed of hardware controlling and software monitoring and is taking industrial computer as the core.Under the Windows environment,the platform establishes the control instruction set,develops the configuration function and visual programming function of the monitoring software and it integrates PLC controller based on Visual Basic software.In order to achieve the function of data monitoring,it has realized the serial communication between computer and PLC by using RS-485 and RS-232 serial ports line communication.The platform designs the intelligent instruction scheduling strategy by studying the encoding and decoding rules of the communication instruction set.It proposes a method for rapidly developing control programs by adopting the expert control mode,which enables clients to develop and modify programs conveniently by importing instructions in a non-coded manner.After experimental testing,the platform is proved successful achieving both the rapid development of PLC control system and the rapid modification of monitoring software.
