AIM: To introduce new applications into the ILCORcardiopulmonary resuscitation(CPR) "chain" sequence.METHODS: Stages of the CPR sequence("chain"): prior to the application of chest massage: assess ...AIM: To introduce new applications into the ILCORcardiopulmonary resuscitation(CPR) "chain" sequence.METHODS: Stages of the CPR sequence("chain"): prior to the application of chest massage: assess the victim's state of consciousness and lung-heart failure;seek help(call 911), or in situations in which it is impossible to start the ILCOR protocol:(1) if the victim is trapped in car crash, overturned car, landslide, massive number of victims or catastrophe; or(2) delayed CPR.During chest compression: Yongquan is simultaneously stimulated by a third rescuer. During defibrillator application: activate K-1 Yongquan through needles before defibrillation. Unsuccessful CPR: "gold standard"for legal clinical death.RESULTS: Implies comparing two hypotheses: Ho(null hypothesis) demonstrates no association between the two variables studied; Ha(alternative hypothesis) implies some degree of relation between them. Difference between the two treatments is observed. If it is greater than the standard error multiplied by a coefficient of security, the difference is significant: Ha will be accepted and Ho rejected. First we will compare CPR without defibrillator(method "A") and K-1 Yongquan method(method "B"), using percentages of representative samples(treatment "A": 6.4% response, treatment "B": 85% response). If │PA- PB│ is greater than the product of 1.96 times the standard error, the difference is significant. Because │PA- PB│ = 0.786 is greater than 0.098, the difference between 0.064 and 0.85 is statistically significant. Thus, we reject Ho and accept Ha as correct. Thus, it is improbable that chance was responsible for this association. This analysis shows that K-1 Yongquan method has a "quality guarantee". Second, we compare defibrillators("A") with K-1 Yongquan method("B")(treatment "A": 48%, treatment "B": 84%, │PA- PB│= 0.36; │PA- PB│ = 0.36 is greater than SE × 1.96 = 0.0148 and also statistically significant, demonstrating again the comparative value of the Yongquan method. CONCLUSION: The Yongquan r展开更多
Expansion of computer technologies allow using numerical simulation in the early stages of aircraft design more and more often. The role of both wind tunnels and initial test flights used to verify the validity of sol...Expansion of computer technologies allow using numerical simulation in the early stages of aircraft design more and more often. The role of both wind tunnels and initial test flights used to verify the validity of solutions seems to be diminishing. Big systems for three-dimensional simulations of Fluid-Structure Interactions （FSI） constitute highly specialized and costly software. Most of the codes are based on many simplifications. In this paper fluid-structure interaction, taking into account the symetric manoeuvre of ultra light plane, is concerned. This phenomenon has important influence in many aeronautical applications. The method and developed system is demonstrated on ultra light I23 plane. For the first flow the comparison with experiment made in Institute of Aviation Warsaw is presented. Finally, aeroelastic simulation of full 123 aircraft configuration presents the capability of used numerical codes to analyze largescale complex geometries for manoeuvre. All computations were carried out in parallel environment for CFD mesh of order of millions tetrahedral elements.展开更多
文摘AIM: To introduce new applications into the ILCORcardiopulmonary resuscitation(CPR) "chain" sequence.METHODS: Stages of the CPR sequence("chain"): prior to the application of chest massage: assess the victim's state of consciousness and lung-heart failure;seek help(call 911), or in situations in which it is impossible to start the ILCOR protocol:(1) if the victim is trapped in car crash, overturned car, landslide, massive number of victims or catastrophe; or(2) delayed CPR.During chest compression: Yongquan is simultaneously stimulated by a third rescuer. During defibrillator application: activate K-1 Yongquan through needles before defibrillation. Unsuccessful CPR: "gold standard"for legal clinical death.RESULTS: Implies comparing two hypotheses: Ho(null hypothesis) demonstrates no association between the two variables studied; Ha(alternative hypothesis) implies some degree of relation between them. Difference between the two treatments is observed. If it is greater than the standard error multiplied by a coefficient of security, the difference is significant: Ha will be accepted and Ho rejected. First we will compare CPR without defibrillator(method "A") and K-1 Yongquan method(method "B"), using percentages of representative samples(treatment "A": 6.4% response, treatment "B": 85% response). If │PA- PB│ is greater than the product of 1.96 times the standard error, the difference is significant. Because │PA- PB│ = 0.786 is greater than 0.098, the difference between 0.064 and 0.85 is statistically significant. Thus, we reject Ho and accept Ha as correct. Thus, it is improbable that chance was responsible for this association. This analysis shows that K-1 Yongquan method has a "quality guarantee". Second, we compare defibrillators("A") with K-1 Yongquan method("B")(treatment "A": 48%, treatment "B": 84%, │PA- PB│= 0.36; │PA- PB│ = 0.36 is greater than SE × 1.96 = 0.0148 and also statistically significant, demonstrating again the comparative value of the Yongquan method. CONCLUSION: The Yongquan r
文摘Expansion of computer technologies allow using numerical simulation in the early stages of aircraft design more and more often. The role of both wind tunnels and initial test flights used to verify the validity of solutions seems to be diminishing. Big systems for three-dimensional simulations of Fluid-Structure Interactions （FSI） constitute highly specialized and costly software. Most of the codes are based on many simplifications. In this paper fluid-structure interaction, taking into account the symetric manoeuvre of ultra light plane, is concerned. This phenomenon has important influence in many aeronautical applications. The method and developed system is demonstrated on ultra light I23 plane. For the first flow the comparison with experiment made in Institute of Aviation Warsaw is presented. Finally, aeroelastic simulation of full 123 aircraft configuration presents the capability of used numerical codes to analyze largescale complex geometries for manoeuvre. All computations were carried out in parallel environment for CFD mesh of order of millions tetrahedral elements.
