The purpose of this study was to analyze the relationship between psychosocial working conditions and perceived safety climate onboard the Swedish merchant fleet. Data was collected by a cross-sectional survey. The sa...The purpose of this study was to analyze the relationship between psychosocial working conditions and perceived safety climate onboard the Swedish merchant fleet. Data was collected by a cross-sectional survey. The sample consisted of 640 Swedish employed engine room officers. A strong relationship was found between the psychosocial working conditions and perceived safety climate onboard （RZ = .204; P 〈 .001）. While role conflict and role ambiguity showed a negative association, social support associated positively with safety climate onboard, lob demands and control showed no relation to safety climate. The conclusion is that the safety climate onboard is strongly associated with social and relational factors.展开更多
In this paper results of previous researches of two-mode full engine model for Mach number range from 3 to 6 are presented. The main aims of researches are to obtain characteristics of full engine model and its compon...In this paper results of previous researches of two-mode full engine model for Mach number range from 3 to 6 are presented. The main aims of researches are to obtain characteristics of full engine model and its components (the inlet, the combustion chamber and the nozzle) in ramjet and scramjet regimes and to compare these characteristics with the calculation results according to CFD and to approximate (engineering) methods. Tests were carried out without ha supply (cold tests) and with fuel supply (study of ignition and combustion).Hydrocarbon and hydrogen fuel (gaseous or liquid) were used during the tests.展开更多
文摘The purpose of this study was to analyze the relationship between psychosocial working conditions and perceived safety climate onboard the Swedish merchant fleet. Data was collected by a cross-sectional survey. The sample consisted of 640 Swedish employed engine room officers. A strong relationship was found between the psychosocial working conditions and perceived safety climate onboard （RZ = .204; P 〈 .001）. While role conflict and role ambiguity showed a negative association, social support associated positively with safety climate onboard, lob demands and control showed no relation to safety climate. The conclusion is that the safety climate onboard is strongly associated with social and relational factors.
文摘In this paper results of previous researches of two-mode full engine model for Mach number range from 3 to 6 are presented. The main aims of researches are to obtain characteristics of full engine model and its components (the inlet, the combustion chamber and the nozzle) in ramjet and scramjet regimes and to compare these characteristics with the calculation results according to CFD and to approximate (engineering) methods. Tests were carried out without ha supply (cold tests) and with fuel supply (study of ignition and combustion).Hydrocarbon and hydrogen fuel (gaseous or liquid) were used during the tests.
