Inertial reference system is one of the airborne equipment.According to the requirements of SAE ARP4754A Guidelines for Development of Civil Aircraft and Systems,MC9 equipment qualification test is needed to verify th...Inertial reference system is one of the airborne equipment.According to the requirements of SAE ARP4754A Guidelines for Development of Civil Aircraft and Systems,MC9 equipment qualification test is needed to verify that the inertial reference system can perform reservation function under specified service conditions.That is,the inertial reference system shall pass certain environmental tests specified in DO⁃160G.Some tests are faced with the problem that the test equipment should have the function requirements of isolation protection and load simulation.Therefore,a kind of test equipment which can provide isolation protection and simulate load function in the test is designed.展开更多
Objective Levosimendan,a new calcium ion sensitizer,is currently used in the treatment of heart failure and as an option for patients with injury to the left heart or at high risk for surgery. The study tried to evalu...Objective Levosimendan,a new calcium ion sensitizer,is currently used in the treatment of heart failure and as an option for patients with injury to the left heart or at high risk for surgery. The study tried to evaluate the effects of levosimendan and ulinastain for protecting myocardium from ischemia-reperfusion (I / R) injury to展开更多
Developments over the past year have led to serious, widespread concern that the world could be returning to a more isolationist stance. It is perhaps the greatest threat ever levelled at the post-war globalization mo...Developments over the past year have led to serious, widespread concern that the world could be returning to a more isolationist stance. It is perhaps the greatest threat ever levelled at the post-war globalization movement and all of its supporting architecture. This paper argues that due to the unusual nature of the last business cycle, the general public has become impatient with the existing economic and in particular, international trade architecture. It also points out that its typical defenders are unsure of how to do so. In response, what is suggested is that logic puts definite limits on how much change is actually likely to occur, and if so, which strategic responses are most appropriate.展开更多
文摘Inertial reference system is one of the airborne equipment.According to the requirements of SAE ARP4754A Guidelines for Development of Civil Aircraft and Systems,MC9 equipment qualification test is needed to verify that the inertial reference system can perform reservation function under specified service conditions.That is,the inertial reference system shall pass certain environmental tests specified in DO⁃160G.Some tests are faced with the problem that the test equipment should have the function requirements of isolation protection and load simulation.Therefore,a kind of test equipment which can provide isolation protection and simulate load function in the test is designed.
文摘Objective Levosimendan,a new calcium ion sensitizer,is currently used in the treatment of heart failure and as an option for patients with injury to the left heart or at high risk for surgery. The study tried to evaluate the effects of levosimendan and ulinastain for protecting myocardium from ischemia-reperfusion (I / R) injury to
文摘Developments over the past year have led to serious, widespread concern that the world could be returning to a more isolationist stance. It is perhaps the greatest threat ever levelled at the post-war globalization movement and all of its supporting architecture. This paper argues that due to the unusual nature of the last business cycle, the general public has become impatient with the existing economic and in particular, international trade architecture. It also points out that its typical defenders are unsure of how to do so. In response, what is suggested is that logic puts definite limits on how much change is actually likely to occur, and if so, which strategic responses are most appropriate.
