The inherent selfishness of each node for the enhancement of message successful delivery ratio and the network overall performance improvement are reflected in the contradiction relationship of competition and coopera...The inherent selfishness of each node for the enhancement of message successful delivery ratio and the network overall performance improvement are reflected in the contradiction relationship of competition and cooperation in delay/disruption tolerant networks (DTN). In particular, the existence of malicious node aggravates this contradiction. To resolve this contradiction, social relationship theory and group theory of social psychology were adopted to do an in-depth analysis. The concrete balancing approach which leveraged Nash equilibrium theory of game theory was proposed to resolve this contradiction in reality. Thus, a new congestion control routing algorithm for security defense based on social psychology and game theory (CRSG) was put forward. Through the experiment, this algorithm proves that it can enhance the message successful delivery ratio by more than 15% and reduce the congestion ratio over 15% as well. This algorithm balances the contradiction relationship between the two key performance targets and made all nodes exhibit strong cooperation relationship in DTN.展开更多
Taiwan had officially entered aging society in 1993, and meantime the birthrate reaches its lowest point again and again. The constitution of population dramatically turns into an elder and low-birthrate society. Ther...Taiwan had officially entered aging society in 1993, and meantime the birthrate reaches its lowest point again and again. The constitution of population dramatically turns into an elder and low-birthrate society. Therefore, the ratio of elders living along is increasing yearly. When the elders need to deal the illness and go to hospital along, decays come from degeneration might have affect on their activity in accessible environment in hospital. Signs is a vital tool for delivering and communicating information in the road sign system. Whether the elders can identify the signs in hospital clearly becomes an important issue in the current research. To understand the affect of signs design in hospital to elders, the research reviewed and gained insight of degeneration in both physical and psychological of elders and the proper principal of signs design for elders. The research surveys in Taipei City, which has densest medical center, and mainly focus on National Taiwan University College of Medicine, which has hundred years of history (founded in 1895). The research conducts field survey in both old and new buildings of National Taiwan University College of Medicine in August, 2015. The survey includes five types of signs design: Public Facilities, Prohibition, Safety, Warning, and Commercial Facilities. The result from article review indicates the most salient psychological degenerations includes the change in cognitive function, decay of memory, and deceleration of information processing; physical degenerations includes the decay of vision. As a result, the following properties should be taken into consideration when designing sings for elders: (1) The proper ratio of graphic and text. (2) Avoid using colors or matches difficult to identify by elders, like purple, blue, and green. (3) Take the visibility, legibility, identity, attention, and memory into consideration, there should be 70% differentiation in contrast between text of sign and background. (4) Avoid using multi-meaning graphic, keep the design simple. The result from the survey of National Yaiwan University College of Medicine indicates: (1) Using mainly on graphic and text as subsidiary, part of the sign design using both Chinese and English, and make sure the appropriateness of ratio between graphic and text. Use more of sans-serif font, which has better legibility. (2) Match the color mainly as yellow background with black graphic, blue background with white graphic, white background with black graphic, white background with blue graphic, a strong contrast between background and graphic on brightness and chroma matches the principle of visibility, legibility, and identity. (3) Simplify the signs design may safeguard its visibility. When elder need to handle illness comes from degeneration alone and go to large and complex hospitals frequently, the decay of their mental and physical might have a huge negative affect. Therefore, the signs design in hospital should understand their properties and design signs that match their requirement, to safeguard their live independency.展开更多
China's social transformation since reform and opening up in 1978 has provided a unique social laboratory for Chinese researchers of social psychology. In order to describe, understand and interpret the psychological...China's social transformation since reform and opening up in 1978 has provided a unique social laboratory for Chinese researchers of social psychology. In order to describe, understand and interpret the psychological and behavioral logic of the Chinese people, we need to call on social psychology research or social transition psychology research that looks directly at social transition, in order to go beyond the cultural exceptionalism and static society approaches. Multiple group membership is the potential core construct of such a psychology.展开更多
基金Projects(61202488, 61070199, 61103182) supported by the National Natural Science Foundation of China
文摘The inherent selfishness of each node for the enhancement of message successful delivery ratio and the network overall performance improvement are reflected in the contradiction relationship of competition and cooperation in delay/disruption tolerant networks (DTN). In particular, the existence of malicious node aggravates this contradiction. To resolve this contradiction, social relationship theory and group theory of social psychology were adopted to do an in-depth analysis. The concrete balancing approach which leveraged Nash equilibrium theory of game theory was proposed to resolve this contradiction in reality. Thus, a new congestion control routing algorithm for security defense based on social psychology and game theory (CRSG) was put forward. Through the experiment, this algorithm proves that it can enhance the message successful delivery ratio by more than 15% and reduce the congestion ratio over 15% as well. This algorithm balances the contradiction relationship between the two key performance targets and made all nodes exhibit strong cooperation relationship in DTN.
文摘Taiwan had officially entered aging society in 1993, and meantime the birthrate reaches its lowest point again and again. The constitution of population dramatically turns into an elder and low-birthrate society. Therefore, the ratio of elders living along is increasing yearly. When the elders need to deal the illness and go to hospital along, decays come from degeneration might have affect on their activity in accessible environment in hospital. Signs is a vital tool for delivering and communicating information in the road sign system. Whether the elders can identify the signs in hospital clearly becomes an important issue in the current research. To understand the affect of signs design in hospital to elders, the research reviewed and gained insight of degeneration in both physical and psychological of elders and the proper principal of signs design for elders. The research surveys in Taipei City, which has densest medical center, and mainly focus on National Taiwan University College of Medicine, which has hundred years of history (founded in 1895). The research conducts field survey in both old and new buildings of National Taiwan University College of Medicine in August, 2015. The survey includes five types of signs design: Public Facilities, Prohibition, Safety, Warning, and Commercial Facilities. The result from article review indicates the most salient psychological degenerations includes the change in cognitive function, decay of memory, and deceleration of information processing; physical degenerations includes the decay of vision. As a result, the following properties should be taken into consideration when designing sings for elders: (1) The proper ratio of graphic and text. (2) Avoid using colors or matches difficult to identify by elders, like purple, blue, and green. (3) Take the visibility, legibility, identity, attention, and memory into consideration, there should be 70% differentiation in contrast between text of sign and background. (4) Avoid using multi-meaning graphic, keep the design simple. The result from the survey of National Yaiwan University College of Medicine indicates: (1) Using mainly on graphic and text as subsidiary, part of the sign design using both Chinese and English, and make sure the appropriateness of ratio between graphic and text. Use more of sans-serif font, which has better legibility. (2) Match the color mainly as yellow background with black graphic, blue background with white graphic, white background with black graphic, white background with blue graphic, a strong contrast between background and graphic on brightness and chroma matches the principle of visibility, legibility, and identity. (3) Simplify the signs design may safeguard its visibility. When elder need to handle illness comes from degeneration alone and go to large and complex hospitals frequently, the decay of their mental and physical might have a huge negative affect. Therefore, the signs design in hospital should understand their properties and design signs that match their requirement, to safeguard their live independency.
文摘China's social transformation since reform and opening up in 1978 has provided a unique social laboratory for Chinese researchers of social psychology. In order to describe, understand and interpret the psychological and behavioral logic of the Chinese people, we need to call on social psychology research or social transition psychology research that looks directly at social transition, in order to go beyond the cultural exceptionalism and static society approaches. Multiple group membership is the potential core construct of such a psychology.