The Experts below are selected from a list of 3651 Experts worldwide ranked by ideXlab platform
Xu Wei - One of the best experts on this subject based on the ideXlab platform.
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Bearing analysis and calculation of the floor Loading Valve-regulated lead-acid batteries
Chinese Journal of Power Sources, 2002Co-Authors: Xu WeiAbstract:The installation and distribution of Valve regulated lead acid (VRLA) batteries loaded on floor has great effect on safety of building. The bearing load and demolition form of floor under VRLA batteries are analyzed and calculated by means of structural mechanics and material mechanics principles. The calculation method of uniformly distributed load is provided as the theoretical basis for the safe installation and distribution of VRLA battery systems.
Hyun-seung Kim - One of the best experts on this subject based on the ideXlab platform.
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Experimental Hypercholesterolemia Induces Ultrastructural Changes in the Elastic Laminae of Rabbit Aortic Valve
Yonsei medical journal, 1998Co-Authors: Hyuck Moon Kwon, Byoung Kwon Lee, Dong Soo Kim, Bum-kee Hong, Ki Hyun Byun, June Sick Kna, In Jai Kim, Hyun-seung KimAbstract:Atherosclerosis is the most severe problem in the high-pressure systemic circulation and similar changes also occur in the high-pressure Loading Valve. This study was designed to test the hypothesis that early atherosclerosis, induced by a high cholesterol diet in rabbits, is characterized by significant ultrastructural change in the elastic laminae of the aortic Valve. However, it is not known whether this process is also taking place in the cardiac Valve at the early stage of atherosclerosis. Animals were fed either a high cholesterol diet (n = 5) or a control diet (n = 5) for 10-12 weeks. Histologic analysis demonstrated that subendothelial thickening and foam-cell infiltration were evident in the arterialis of aortic Valves. Confocal microscopy revealed an altered pattern characterized by fragmentation and disorganization of the arterialis elastic laminae of hypercholesterolemic Valves. Computerized digital analysis of the images obtained by confocal scanning microscopy demonstrated that compared to normal Valves, the arterialis elastic laminae of hypercholesterolemic Valves decreased in percentage of their elastin content (29.03 +/- 1.10% vs. 42.94 +/- 1.35%, p = 0.023). Immunohistochemical staining for matrix metalloproteinase-3 (MMP-3) revealed MMP-3 immunoreactivity was increased in hypercholesterolemic Valves, predominantly in the arterialis. This study demonstrated that early atherosclerosis, induced by a high cholesterol diet in rabbits, is characterized by significant ultrastructural change in the elastic laminae of the aortic Valve. The arterialis endothelium of the aortic Valve may be a more atherosclerosis-prone area compared with the ventricularis. The presence of ultrastructural defect in the elastic laminae may play a role in chronic degenerative change and a resultant valvular dysfunction.
Yi Yijian - One of the best experts on this subject based on the ideXlab platform.
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Design and Application of Train Braking Tube Experimental Station Based on PLC-fuzzy Control
Machine Tool & Hydraulics, 2012Co-Authors: Yi YijianAbstract:According to the instability station of manually load of the train braking tube experimental station,the manual Loading Valve was transformed into digital Valve by using stepper motor.By the way of combining fuzzy control and PLC,the automatic control system of the experimental station was designed.The practical application indicates that the control system is stable,reliable and precise.
Hyuck Moon Kwon - One of the best experts on this subject based on the ideXlab platform.
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Experimental Hypercholesterolemia Induces Ultrastructural Changes in the Elastic Laminae of Rabbit Aortic Valve
Yonsei medical journal, 1998Co-Authors: Hyuck Moon Kwon, Byoung Kwon Lee, Dong Soo Kim, Bum-kee Hong, Ki Hyun Byun, June Sick Kna, In Jai Kim, Hyun-seung KimAbstract:Atherosclerosis is the most severe problem in the high-pressure systemic circulation and similar changes also occur in the high-pressure Loading Valve. This study was designed to test the hypothesis that early atherosclerosis, induced by a high cholesterol diet in rabbits, is characterized by significant ultrastructural change in the elastic laminae of the aortic Valve. However, it is not known whether this process is also taking place in the cardiac Valve at the early stage of atherosclerosis. Animals were fed either a high cholesterol diet (n = 5) or a control diet (n = 5) for 10-12 weeks. Histologic analysis demonstrated that subendothelial thickening and foam-cell infiltration were evident in the arterialis of aortic Valves. Confocal microscopy revealed an altered pattern characterized by fragmentation and disorganization of the arterialis elastic laminae of hypercholesterolemic Valves. Computerized digital analysis of the images obtained by confocal scanning microscopy demonstrated that compared to normal Valves, the arterialis elastic laminae of hypercholesterolemic Valves decreased in percentage of their elastin content (29.03 +/- 1.10% vs. 42.94 +/- 1.35%, p = 0.023). Immunohistochemical staining for matrix metalloproteinase-3 (MMP-3) revealed MMP-3 immunoreactivity was increased in hypercholesterolemic Valves, predominantly in the arterialis. This study demonstrated that early atherosclerosis, induced by a high cholesterol diet in rabbits, is characterized by significant ultrastructural change in the elastic laminae of the aortic Valve. The arterialis endothelium of the aortic Valve may be a more atherosclerosis-prone area compared with the ventricularis. The presence of ultrastructural defect in the elastic laminae may play a role in chronic degenerative change and a resultant valvular dysfunction.
In Jai Kim - One of the best experts on this subject based on the ideXlab platform.
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Experimental Hypercholesterolemia Induces Ultrastructural Changes in the Elastic Laminae of Rabbit Aortic Valve
Yonsei medical journal, 1998Co-Authors: Hyuck Moon Kwon, Byoung Kwon Lee, Dong Soo Kim, Bum-kee Hong, Ki Hyun Byun, June Sick Kna, In Jai Kim, Hyun-seung KimAbstract:Atherosclerosis is the most severe problem in the high-pressure systemic circulation and similar changes also occur in the high-pressure Loading Valve. This study was designed to test the hypothesis that early atherosclerosis, induced by a high cholesterol diet in rabbits, is characterized by significant ultrastructural change in the elastic laminae of the aortic Valve. However, it is not known whether this process is also taking place in the cardiac Valve at the early stage of atherosclerosis. Animals were fed either a high cholesterol diet (n = 5) or a control diet (n = 5) for 10-12 weeks. Histologic analysis demonstrated that subendothelial thickening and foam-cell infiltration were evident in the arterialis of aortic Valves. Confocal microscopy revealed an altered pattern characterized by fragmentation and disorganization of the arterialis elastic laminae of hypercholesterolemic Valves. Computerized digital analysis of the images obtained by confocal scanning microscopy demonstrated that compared to normal Valves, the arterialis elastic laminae of hypercholesterolemic Valves decreased in percentage of their elastin content (29.03 +/- 1.10% vs. 42.94 +/- 1.35%, p = 0.023). Immunohistochemical staining for matrix metalloproteinase-3 (MMP-3) revealed MMP-3 immunoreactivity was increased in hypercholesterolemic Valves, predominantly in the arterialis. This study demonstrated that early atherosclerosis, induced by a high cholesterol diet in rabbits, is characterized by significant ultrastructural change in the elastic laminae of the aortic Valve. The arterialis endothelium of the aortic Valve may be a more atherosclerosis-prone area compared with the ventricularis. The presence of ultrastructural defect in the elastic laminae may play a role in chronic degenerative change and a resultant valvular dysfunction.