Oil storage is a source of volatile organic compounds( VOCs). Volatile organic compounds can cause different damages to the environment,animals and plants. Therefore, it is important to control the discharge of VOCs i...Oil storage is a source of volatile organic compounds( VOCs). Volatile organic compounds can cause different damages to the environment,animals and plants. Therefore, it is important to control the discharge of VOCs in oil storage. In this paper,the control technology of sources of VOCs pollution in oil storage was analyzed from the source,process and end treatment,and measures for the prevention and control of VOCs pollution in oil storage were proposed.展开更多
The just noticeable difference （JND） of the reverberance was tested using the constant-stimulus, method. Some factors that may influence the tested results are analyzed to validate the experimental data. The test ma...The just noticeable difference （JND） of the reverberance was tested using the constant-stimulus, method. Some factors that may influence the tested results are analyzed to validate the experimental data. The test materials are the Chinese instrumental music. Three subjects groups were tested, including the audio technician group, the students from audio engineering department and a group of postgraduates majoring in acoustics. It is found that the value of JND of reverberance is about 25%. The difference possibly caused by the professional training and experience of different subjects groups is noticeable, but the difference caused by different music motifs is insignificant.展开更多
文摘Oil storage is a source of volatile organic compounds( VOCs). Volatile organic compounds can cause different damages to the environment,animals and plants. Therefore, it is important to control the discharge of VOCs in oil storage. In this paper,the control technology of sources of VOCs pollution in oil storage was analyzed from the source,process and end treatment,and measures for the prevention and control of VOCs pollution in oil storage were proposed.
基金supported by the National Natural Science Foundation of China(10874155,10574100)
文摘The just noticeable difference （JND） of the reverberance was tested using the constant-stimulus, method. Some factors that may influence the tested results are analyzed to validate the experimental data. The test materials are the Chinese instrumental music. Three subjects groups were tested, including the audio technician group, the students from audio engineering department and a group of postgraduates majoring in acoustics. It is found that the value of JND of reverberance is about 25%. The difference possibly caused by the professional training and experience of different subjects groups is noticeable, but the difference caused by different music motifs is insignificant.
