An approach to the direct measure of stereoscopic （3D） videos with different accelerations was presented, using electroen- cephalography （EEG）. In the study, subjects viewed 1-sec-long video clips with a stone ap-...An approach to the direct measure of stereoscopic （3D） videos with different accelerations was presented, using electroen- cephalography （EEG）. In the study, subjects viewed 1-sec-long video clips with a stone ap- proaching straightforward and were required to perceive whether they were able to catch the outline of stone. Peak amplitude of each part was extracted from PO3 electrode located at the occipital region corresponding visual processing and cognition. Three components were conspicuously observed in the periods： 650-800 ms, 800-900 ms and 1150-1250 ms, which were called N310, N480 and N810 in this paper. N310 related to the perception to the initial stage of movement. Movement in- depth could be immediately perceived when initial speed was not less than 3 m/s. N480 related to the perception to acceleration/decel- eration. N810 related to the perception to the point a movement was about to vanish. Sub- jects couldn＇t perceive the outline with the fi- nal speed more than 3 rn/s. For 3 m/s, subjects were in a dilemma to judge with the detecting rate 54%. Together, component analysis com- bined with behavioral results, it was supposed that 3 m/s to be the threshold to completely perceive the outline.展开更多
This paper studies the motion of novel manipulator that can be used in the structure of stone protectors of soil tillage implements. According to the virtual reality technology-based method the technology of compositi...This paper studies the motion of novel manipulator that can be used in the structure of stone protectors of soil tillage implements. According to the virtual reality technology-based method the technology of composition of the virtual model of a manipulator and its positions in the working process are described in details. This virtual model is used for composition the video clip, simulating the motion of novel manipulator, which three points are moving along two lines and one curve. The results obtained and the computer program realizing the virtual reality technology-based study of the working process of the virtual manipulators for stone protectors can be used by designers of stone protectors for soil tillage implements.展开更多
This article will discuss the manifestation of the Arab Spring in Arab literature and sheds light on what has become known as ＂Video Clips Poems＂ or ＂Flash Poems＂ on YouTube. We shall attempt to answer a number of...This article will discuss the manifestation of the Arab Spring in Arab literature and sheds light on what has become known as ＂Video Clips Poems＂ or ＂Flash Poems＂ on YouTube. We shall attempt to answer a number of questions concerning Arab Spring literature in general and the video clips in particular： What role did this literature plays in the political transformations witnessed by the Arab world in recent years？ What are the means it used in order to inflame the masses？ What are the features of the Arab Spring video clips as a new genre different from printed genres？ Will the Arab Spring continue to be a literary theme after the end of these uprisings？ These clips possess rich and dense semantics content and meaning as it will be shown in this article.展开更多
School violence has repeatedly made headlines in recent years.In March2015,for example,a video clip showing a female student in east China’s Jiangxi Province being beaten and slapped in the face by classmates because...School violence has repeatedly made headlines in recent years.In March2015,for example,a video clip showing a female student in east China’s Jiangxi Province being beaten and slapped in the face by classmates because of conflicts between her and one of the attackers went viral on the Internet.展开更多
基金supported by National Nature Science Foundation of China[61302123]
文摘An approach to the direct measure of stereoscopic （3D） videos with different accelerations was presented, using electroen- cephalography （EEG）. In the study, subjects viewed 1-sec-long video clips with a stone ap- proaching straightforward and were required to perceive whether they were able to catch the outline of stone. Peak amplitude of each part was extracted from PO3 electrode located at the occipital region corresponding visual processing and cognition. Three components were conspicuously observed in the periods： 650-800 ms, 800-900 ms and 1150-1250 ms, which were called N310, N480 and N810 in this paper. N310 related to the perception to the initial stage of movement. Movement in- depth could be immediately perceived when initial speed was not less than 3 m/s. N480 related to the perception to acceleration/decel- eration. N810 related to the perception to the point a movement was about to vanish. Sub- jects couldn＇t perceive the outline with the fi- nal speed more than 3 rn/s. For 3 m/s, subjects were in a dilemma to judge with the detecting rate 54%. Together, component analysis com- bined with behavioral results, it was supposed that 3 m/s to be the threshold to completely perceive the outline.
文摘This paper studies the motion of novel manipulator that can be used in the structure of stone protectors of soil tillage implements. According to the virtual reality technology-based method the technology of composition of the virtual model of a manipulator and its positions in the working process are described in details. This virtual model is used for composition the video clip, simulating the motion of novel manipulator, which three points are moving along two lines and one curve. The results obtained and the computer program realizing the virtual reality technology-based study of the working process of the virtual manipulators for stone protectors can be used by designers of stone protectors for soil tillage implements.
文摘This article will discuss the manifestation of the Arab Spring in Arab literature and sheds light on what has become known as ＂Video Clips Poems＂ or ＂Flash Poems＂ on YouTube. We shall attempt to answer a number of questions concerning Arab Spring literature in general and the video clips in particular： What role did this literature plays in the political transformations witnessed by the Arab world in recent years？ What are the means it used in order to inflame the masses？ What are the features of the Arab Spring video clips as a new genre different from printed genres？ Will the Arab Spring continue to be a literary theme after the end of these uprisings？ These clips possess rich and dense semantics content and meaning as it will be shown in this article.
文摘School violence has repeatedly made headlines in recent years.In March2015,for example,a video clip showing a female student in east China’s Jiangxi Province being beaten and slapped in the face by classmates because of conflicts between her and one of the attackers went viral on the Internet.
