This paper presents a robotic system for weld-joint inspection of the big-caliber pipeline, which is developed for the purpose of being utilized as automation platform for X-ray real-time imaging inspection technique ...This paper presents a robotic system for weld-joint inspection of the big-caliber pipeline, which is developed for the purpose of being utilized as automation platform for X-ray real-time imaging inspection technique (RTIIT). The robot can perform autonomous seeking and locating of weld-seam position in-pipe, and under the control of synchro-follow control technique it can accomplish the technologic task of weld inspection. The robotic system is equipped with a small focal spot and directional beam X-ray tube, so the higher definition image of weld-seam can be obtained. Several key techniques about the robotic system developed are also explained in detail. Its construction is outlined.展开更多
Objective： Dyslipidemia is a leading cause of cardiovascular disease. At present, studies have shown that theincidence of cardiovascular disease in our country increased year by year. According to WHO statistics in 2...Objective： Dyslipidemia is a leading cause of cardiovascular disease. At present, studies have shown that theincidence of cardiovascular disease in our country increased year by year. According to WHO statistics in 2013, itshowed that about 17 million people worldwide die from coronary heart disease （CHD） every year. Currently, CHDis the first cause of death in western countries and the incidence of CHD also showed a trend of increasing. Inrecent years more experts and scholars at home and abroad found gene polymorphism is closely related tohigh-density lipoprotein cholesterol （HDLC） gene and triglyceride （TG） levels. Apolipoprotein （APO） gene is akind of popular polymorphic proteins, whose genetic polymorphisms is through the impact of lipid metabolism,and then closely related to cerebrovascular diseases. But the results are different in different populations and races,or even the opposite. Methods： This review will summarize the gene polymorphism loci of commonapolipoprotein-ApoA1, ApoA5, Apo B, ApoC3, ApoE, which is associated with lipid levels and cardiovasculardisease. Conclusion： It is important for us to get a further understand and prevent the occurrence and developmentof cardiovascular disease from gene level..展开更多
文摘This paper presents a robotic system for weld-joint inspection of the big-caliber pipeline, which is developed for the purpose of being utilized as automation platform for X-ray real-time imaging inspection technique (RTIIT). The robot can perform autonomous seeking and locating of weld-seam position in-pipe, and under the control of synchro-follow control technique it can accomplish the technologic task of weld inspection. The robotic system is equipped with a small focal spot and directional beam X-ray tube, so the higher definition image of weld-seam can be obtained. Several key techniques about the robotic system developed are also explained in detail. Its construction is outlined.
文摘Objective： Dyslipidemia is a leading cause of cardiovascular disease. At present, studies have shown that theincidence of cardiovascular disease in our country increased year by year. According to WHO statistics in 2013, itshowed that about 17 million people worldwide die from coronary heart disease （CHD） every year. Currently, CHDis the first cause of death in western countries and the incidence of CHD also showed a trend of increasing. Inrecent years more experts and scholars at home and abroad found gene polymorphism is closely related tohigh-density lipoprotein cholesterol （HDLC） gene and triglyceride （TG） levels. Apolipoprotein （APO） gene is akind of popular polymorphic proteins, whose genetic polymorphisms is through the impact of lipid metabolism,and then closely related to cerebrovascular diseases. But the results are different in different populations and races,or even the opposite. Methods： This review will summarize the gene polymorphism loci of commonapolipoprotein-ApoA1, ApoA5, Apo B, ApoC3, ApoE, which is associated with lipid levels and cardiovasculardisease. Conclusion： It is important for us to get a further understand and prevent the occurrence and developmentof cardiovascular disease from gene level..
