From the year of 1949 to the present, the China national coal output has been increasing quickly and became first in the world in 2009. But at the same time, major coal mining accidents still exist nowadays. In order ...From the year of 1949 to the present, the China national coal output has been increasing quickly and became first in the world in 2009. But at the same time, major coal mining accidents still exist nowadays. In order to review the overall situation and provide information on major accidents of coal mines in China, we investigated 26 major coal mining accidents in China between the years of 1949 and 2009 through statistical methods, each of which led to more than 100 fatalities. Statistical characteristics about accident-related factors such as time, death toll, accident reasons, characters and nature of enterprise were analyzed. And some special conclusions have been achieved. For example, although we have made great progress, the safety situation in China coal mining industry is still serious, and the reasons for the mining accidents are all human errors which are not inevitable. Such results may be helpful to prevent major accidents in coal mines. Moreso, based on both the knowledge of other countries which have good safety situation nowadays and the safety management situation of China, we made suggestion on safety management of China coal mining. In conclusion, countermeasures were proposed in accordance with the results of statistical studies and the analyses of problems existed in coal mines, including the perfec- tion of safety supervision organization, the establishment of cooperating agency among government, coal mines and workers, the perfection of safety rules and regulations, the improvement of safety investment, the enhancement of safety training, the development of safety technique, and the development of emer- gency rescue technique and equipment.展开更多
The possibility and causes of flight accidents by operational error/deviation in takeoff are analyzed in this paper. The following three stages are each described individually: before liftoff, near liftoff and initial...The possibility and causes of flight accidents by operational error/deviation in takeoff are analyzed in this paper. The following three stages are each described individually: before liftoff, near liftoff and initial climb. Relations of accident/incident causal factors by operational error with intrinsical flight mechanics are discussed.展开更多
If one aims at choosing a fundamental rule of international aviation law, doubtlessly the one selected would be principle of air sovereignty. And although having been respected by international community for decades, ...If one aims at choosing a fundamental rule of international aviation law, doubtlessly the one selected would be principle of air sovereignty. And although having been respected by international community for decades, its strict observance may paradoxically pose danger for civil aviation-a mean of transport universally concerned to be the safest in the world, Of course, States make best efforts to secure civil airplanes from attacks-beginning with prohibition of use of force arising from Charter of the United Nations finishing with provisions of Montreal Convention. Nevertheless, history of aviation has given multiple cases of shooting down aircraft, many due to conviction by States that their airspace was infringed. This paper aims at presenting an overview of principle of air sovereignty and analysis of selected aviation incidents and accidents caused by shooting down from the perspective of international law.展开更多
Traffic accidents caused the most accidental deaths at work in Malaysia. The SOCSO （Social Security Organization） reported that the number of deaths due to commuting accidents was 760, nearly two times more than dea...Traffic accidents caused the most accidental deaths at work in Malaysia. The SOCSO （Social Security Organization） reported that the number of deaths due to commuting accidents was 760, nearly two times more than deaths caused by accidents that happened at the workplace （471 deaths）. The aim of this study is to investigate the relationship of socio-demographic background and the risk exposure of the drivers during their work commuting trips. The study was based on compensation claims to SOCSO where data were extracted from ＂Form 21＂ provided by SOCSO. A total of 377 respondents were selected through systematic random sampling method from a list of SOCSO claimants. It was found that majority of the traffic accidents （83%） involved males and most of them （92.2%） were on motorcycles. Male drivers have an average driving experience of 10.7 years and 8.6 years for females. The estimation of the travelled distance for the sample from home to the workplace is 0.65-131 km. Mean accident occurrence time was 23 rain whilst mean distance was 11.6 km. The multiple regression analysis showed that the accident distance was affected by the age of driver, actual travel distance, travel objective and speed.展开更多
An integral effect test for a MSLB （main stem line break） was performed with the ATLAS （advanced thermal-hydraulic test loop for accident simulation） by KAERI （Korea Atomic Energy Research Institute）. A MSLB is ...An integral effect test for a MSLB （main stem line break） was performed with the ATLAS （advanced thermal-hydraulic test loop for accident simulation） by KAERI （Korea Atomic Energy Research Institute）. A MSLB is defined as a pipe break in the main steam system. This data was used to validate the safety analysis code SPACE （safety and performance analysis code for nuclear power plants）. In the test, a double-ended guillotined break of the main steam line was simulated. After steady-state was reached, the test was started by opening the break simulation valves. With the start of the test, the pressure of the secondary system decreased rapidly, and reached the set-point of the LSGP （low steam generator pressure） signal. With the occurrence of the LSGP signal, the main steam isolation valves were closed. The SIPs （safety injection pumps） were started by the LPP （low pressurizer pressure） signal. In order to validate the SPACE code, a double-ended guillotine break of the main steam line at ATLAS was simulated. Most of the results show good agreement between the experiment data and the code calculated values.展开更多
基金support from the Science and Technology Programming Project of Shandong Provincein China (No. 2010GSF10808)the National Natural Science Foundation of China (No. 51074100)
文摘From the year of 1949 to the present, the China national coal output has been increasing quickly and became first in the world in 2009. But at the same time, major coal mining accidents still exist nowadays. In order to review the overall situation and provide information on major accidents of coal mines in China, we investigated 26 major coal mining accidents in China between the years of 1949 and 2009 through statistical methods, each of which led to more than 100 fatalities. Statistical characteristics about accident-related factors such as time, death toll, accident reasons, characters and nature of enterprise were analyzed. And some special conclusions have been achieved. For example, although we have made great progress, the safety situation in China coal mining industry is still serious, and the reasons for the mining accidents are all human errors which are not inevitable. Such results may be helpful to prevent major accidents in coal mines. Moreso, based on both the knowledge of other countries which have good safety situation nowadays and the safety management situation of China, we made suggestion on safety management of China coal mining. In conclusion, countermeasures were proposed in accordance with the results of statistical studies and the analyses of problems existed in coal mines, including the perfec- tion of safety supervision organization, the establishment of cooperating agency among government, coal mines and workers, the perfection of safety rules and regulations, the improvement of safety investment, the enhancement of safety training, the development of safety technique, and the development of emer- gency rescue technique and equipment.
文摘The possibility and causes of flight accidents by operational error/deviation in takeoff are analyzed in this paper. The following three stages are each described individually: before liftoff, near liftoff and initial climb. Relations of accident/incident causal factors by operational error with intrinsical flight mechanics are discussed.
文摘If one aims at choosing a fundamental rule of international aviation law, doubtlessly the one selected would be principle of air sovereignty. And although having been respected by international community for decades, its strict observance may paradoxically pose danger for civil aviation-a mean of transport universally concerned to be the safest in the world, Of course, States make best efforts to secure civil airplanes from attacks-beginning with prohibition of use of force arising from Charter of the United Nations finishing with provisions of Montreal Convention. Nevertheless, history of aviation has given multiple cases of shooting down aircraft, many due to conviction by States that their airspace was infringed. This paper aims at presenting an overview of principle of air sovereignty and analysis of selected aviation incidents and accidents caused by shooting down from the perspective of international law.
文摘Traffic accidents caused the most accidental deaths at work in Malaysia. The SOCSO （Social Security Organization） reported that the number of deaths due to commuting accidents was 760, nearly two times more than deaths caused by accidents that happened at the workplace （471 deaths）. The aim of this study is to investigate the relationship of socio-demographic background and the risk exposure of the drivers during their work commuting trips. The study was based on compensation claims to SOCSO where data were extracted from ＂Form 21＂ provided by SOCSO. A total of 377 respondents were selected through systematic random sampling method from a list of SOCSO claimants. It was found that majority of the traffic accidents （83%） involved males and most of them （92.2%） were on motorcycles. Male drivers have an average driving experience of 10.7 years and 8.6 years for females. The estimation of the travelled distance for the sample from home to the workplace is 0.65-131 km. Mean accident occurrence time was 23 rain whilst mean distance was 11.6 km. The multiple regression analysis showed that the accident distance was affected by the age of driver, actual travel distance, travel objective and speed.
文摘An integral effect test for a MSLB （main stem line break） was performed with the ATLAS （advanced thermal-hydraulic test loop for accident simulation） by KAERI （Korea Atomic Energy Research Institute）. A MSLB is defined as a pipe break in the main steam system. This data was used to validate the safety analysis code SPACE （safety and performance analysis code for nuclear power plants）. In the test, a double-ended guillotined break of the main steam line was simulated. After steady-state was reached, the test was started by opening the break simulation valves. With the start of the test, the pressure of the secondary system decreased rapidly, and reached the set-point of the LSGP （low steam generator pressure） signal. With the occurrence of the LSGP signal, the main steam isolation valves were closed. The SIPs （safety injection pumps） were started by the LPP （low pressurizer pressure） signal. In order to validate the SPACE code, a double-ended guillotine break of the main steam line at ATLAS was simulated. Most of the results show good agreement between the experiment data and the code calculated values.
