A new hybrid model rotor flux observer, based on a new voltage model, is presented. In the first place, the voltage model of an induction machine was constructed by using the modeling method discussed in this paper an...A new hybrid model rotor flux observer, based on a new voltage model, is presented. In the first place, the voltage model of an induction machine was constructed by using the modeling method discussed in this paper and then the current model using a flux feedback was adopted in this flux observer. Secondly, the two models were com- bined via a filter and then the rotor flux observer was established. In the M-T synchronous coordinate, the observer was analyzed theoretically and several important functions were derived. A comparison between the observer and the traditional models was made using Matlab software. The simulation results show that the observer model had a better performance than the traditional model.展开更多
Angina pectoris(AP)is the most common symptom of cardiovascular diseases,which seriously affects the quality of life in cardiovascular patients.Kuanxiong(KX)Aerosol(宽胸气雾剂),a compound preparation that consists of ...Angina pectoris(AP)is the most common symptom of cardiovascular diseases,which seriously affects the quality of life in cardiovascular patients.Kuanxiong(KX)Aerosol(宽胸气雾剂),a compound preparation that consists of 5 traditional Chinese medicines:Herba Asari,Rhizoma Alpiniae Officinarum,Lignum Santali Albi,Fructus Piperis Longi,and Borneolum,has been used in the treatment of AP for many years,exhibiting a significant curative effect and less side-effect.For the convenience and comprehensive understanding of KX Aerosol,this review systematically summarizes evidence on KX Aerosol in the treatment of AP including the pharmacological effects of its composition,clinical research,animal experiments,and network pharmacology prediction.Meanwhile,we highlight the research limitation of KX Aerosol at present.This review may guide the clinical application of KX Aerosol and further provide a reference for the research of AP.展开更多
Background:Although percutaneous coronary intervention(PCI)had become widely employed therapeutic procedure for coronary artery disease,stent restenosis limited the benefits of this revascularization and the question ...Background:Although percutaneous coronary intervention(PCI)had become widely employed therapeutic procedure for coronary artery disease,stent restenosis limited the benefits of this revascularization and the question how to prevent such events remained unresolved.While numerous empirical observations suggested Tongguan Capsules(通冠胶囊),a patented Chinese Medicine,could decrease frequency and duration of angina pectoris attacks,evidence supporting its efficacy on restenosis remained inadequate.Objective:This trial was designed to determine whether Tongguan Capsules would reduce restenosis rate in patients after successful stent implantation.Methods:Approximately 400 patients undergoing percutaneous coronary stent deployment were enrolled and randomized to control group or Tongguan Capsules(4.5 g/d)for 3 months.All patients received standard anti-platelet,anti-coagulation and lipid-decreasing treatments,concurrently.The primary clinical endpoint was the 12-month incidence of the major adverse cardiovascular events(defined as cardiac death,myocardial infarction,and recurrence of symptoms requiring additional revascularization).The angiographic end point was restenosis rate at 6 months.Conclusion:This study would provide important evidence for the use of Tongguan Capsules in patients after stent implantation in combination with routine therapies,which may significantly reduce incidence of the restenosis so as to potentially improve the clinical outcomes.(registration number:ChiCTR-TRC-ChiCTR-IIR-17011407)展开更多
Cadmium(Cd),a toxic heavy metal commonly found in the environment,can cause toxic reactions at a dose of 30 mg.Cd is absorbed into the body mainly through the respiratory tract,digestive tract,and skin.(1)About 10%–5...Cadmium(Cd),a toxic heavy metal commonly found in the environment,can cause toxic reactions at a dose of 30 mg.Cd is absorbed into the body mainly through the respiratory tract,digestive tract,and skin.(1)About 10%–50%of Cd absorption is inhaled dust,then about 5%–10%of ingested Cd is absorbed by body,which depending on particle size.(2)As known,most of Cd poisoning reaction is chronic,and acute Cd poisoning,especially high doses of acute poisoning,is very rare in clinic.Due to its airless and tasteless characteristics.展开更多
基金Projects (00KJD470002, 03KJD470036) supported by the Natural Science Foundation of the Bureau of Education Jiangsu Province
文摘A new hybrid model rotor flux observer, based on a new voltage model, is presented. In the first place, the voltage model of an induction machine was constructed by using the modeling method discussed in this paper and then the current model using a flux feedback was adopted in this flux observer. Secondly, the two models were com- bined via a filter and then the rotor flux observer was established. In the M-T synchronous coordinate, the observer was analyzed theoretically and several important functions were derived. A comparison between the observer and the traditional models was made using Matlab software. The simulation results show that the observer model had a better performance than the traditional model.
基金Supported by the National Natural Science Foundation of China(No.81703848)Project of Administration of Traditional Chinese Medicine of Guangdong Province of China(No.20181126)+1 种基金the Special Clinical Research Fund for TCM Science and Technology of Guangdong Provincial Hospital of Chinese Medicine(No.YN2018QL06)Hospital TCM Preparation Development Project(No.E44939)。
文摘Angina pectoris(AP)is the most common symptom of cardiovascular diseases,which seriously affects the quality of life in cardiovascular patients.Kuanxiong(KX)Aerosol(宽胸气雾剂),a compound preparation that consists of 5 traditional Chinese medicines:Herba Asari,Rhizoma Alpiniae Officinarum,Lignum Santali Albi,Fructus Piperis Longi,and Borneolum,has been used in the treatment of AP for many years,exhibiting a significant curative effect and less side-effect.For the convenience and comprehensive understanding of KX Aerosol,this review systematically summarizes evidence on KX Aerosol in the treatment of AP including the pharmacological effects of its composition,clinical research,animal experiments,and network pharmacology prediction.Meanwhile,we highlight the research limitation of KX Aerosol at present.This review may guide the clinical application of KX Aerosol and further provide a reference for the research of AP.
基金Supported by the National Natural Science Foundation of China(No.81703848 and No.81703877)the Natural Science Foundation of Guandong Province(No.2017A030310123)+1 种基金CHEN Ke-ji Academic Thought Inheritance Studio(No.201461)SHI Zai-xiang Academic Thought Inheritance Studio(No.201461)。
文摘Background:Although percutaneous coronary intervention(PCI)had become widely employed therapeutic procedure for coronary artery disease,stent restenosis limited the benefits of this revascularization and the question how to prevent such events remained unresolved.While numerous empirical observations suggested Tongguan Capsules(通冠胶囊),a patented Chinese Medicine,could decrease frequency and duration of angina pectoris attacks,evidence supporting its efficacy on restenosis remained inadequate.Objective:This trial was designed to determine whether Tongguan Capsules would reduce restenosis rate in patients after successful stent implantation.Methods:Approximately 400 patients undergoing percutaneous coronary stent deployment were enrolled and randomized to control group or Tongguan Capsules(4.5 g/d)for 3 months.All patients received standard anti-platelet,anti-coagulation and lipid-decreasing treatments,concurrently.The primary clinical endpoint was the 12-month incidence of the major adverse cardiovascular events(defined as cardiac death,myocardial infarction,and recurrence of symptoms requiring additional revascularization).The angiographic end point was restenosis rate at 6 months.Conclusion:This study would provide important evidence for the use of Tongguan Capsules in patients after stent implantation in combination with routine therapies,which may significantly reduce incidence of the restenosis so as to potentially improve the clinical outcomes.(registration number:ChiCTR-TRC-ChiCTR-IIR-17011407)
基金Supported by the CHEN Ke-ji Academic Thought Inheritance Studio(No.201461)and the SHI Zai-xiang Academic Thought Inheritance Studio(No.201461)。
文摘Cadmium(Cd),a toxic heavy metal commonly found in the environment,can cause toxic reactions at a dose of 30 mg.Cd is absorbed into the body mainly through the respiratory tract,digestive tract,and skin.(1)About 10%–50%of Cd absorption is inhaled dust,then about 5%–10%of ingested Cd is absorbed by body,which depending on particle size.(2)As known,most of Cd poisoning reaction is chronic,and acute Cd poisoning,especially high doses of acute poisoning,is very rare in clinic.Due to its airless and tasteless characteristics.
