3,340 research outputs found
Mold allergen, pen C 13, induces IL-8 expression in human airway epithelial cells by activating protease-activated receptor 1 and 2.
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Progression of aortic regurgitation after surgical repair of outlet-type ventricular septal defects.
No full textA Study on the Ball Shear Test of Sn-Ag-Cu and Sn-Pb Solder Balls
No full textIn this thesis, the relation between shear load and displacement for the lead-free solder (Sn3.0Ag0.5Cu) and the tin-lead solder (63Sn37Pb) are investigated. Except that, a new shear strength of the solder balls is suggested with considering the plastic strain energy of the solder balls. Three diameters of the Sn/Ag/Cu and Sn/Pb solder balls are studied. The variation of the plastic strain energies for the balls undergone different number of thermal cycles is compared. The effect of high temperature aging on the shear strength is also discussed. The difference between the failure fractures of the Sn/Ag/Cu and Sn/Pb solder ball are executed by using SEM.
The experimental results show that the failure mechanism for the Sn/Ag/Cu is quite different from the Sn/Pb solder ball. Generally, the lead-free Sn/Ag/Cu solder is much ductile than the Sn/Pb solder ball in the shear test. Also the better fatigue performances are observed for the Sn/Ag/Cu solder balls
Clinical implications of major aortopulmonary collateral arteries in patients with right isomerism.
No full textPerioperative extracorporeal membrane oxygenation support for critical pediatric airway surgery.
No full textLong-term outcome of twin atrioventricular node and supraventricular tachycardia in patients with right isomerism of the atrial appendage
No full textAnomalous ascending aorta causing severe compression of the left bronchus in an infant with ventricular septal defect and pulmonary atresia.
No full textA trend of improved survival of childhood hepatoblastoma treated with cisplatin and doxorubicin in Taiwanese children.
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