situation interaction
1.The situation of three plenary session that discussed the technicalchallenges facing aerospace ground-based testing,interaction of CFD andground-based testing and future of aerodynamic/aerothermodynamic re-search in USA,is introduced briefly.
2.JPEG 2000 lossy compression is adopted in LS-DHFR, and original fingerprint image can be compressed to 1/4-1/20 of its original size, so the amount of data to be transferred is much smaller, and the system has a better interaction performance in low bandwidth situation;
3.This paper introduces the present situation and operation process of the search engine inquiry platform and analyzes the develop-ment and the problems of digital reference service(DRS).The paper suggests that libraries should learn from the interactive inquiry platform to improve reference service from aspects of the establishment of innovation mechanism,interaction with users,the introduction of incentive measures,self-service offer,competition consciousness and the adjustment of operation pattern.
4.Almost any information available at the time of interaction can be seen as context information: identity, spatial information (e.g., location, orientation, speed and acceleration), temporal information (e.g., time of the day, date, and season of the year), environmental information (e.g., temperature, air quality, and light or noise level), social situation (e.g., who are you with, and people that are nearby), resources that are nearby (e.g., accessible devices, and hosts), availability of resources (e.g., battery, display, network, and bandwidth), physiological measurements (e.g., blood pressure, heart rate, respiration rate, muscle activity, and tone of voice), activity (e.g., talking, walking, and running), schedules and agenda settings.
5.Almost any piece of information available at the time of interaction can be seen as context information: identity, spatial information (e.g., location, orientation, speed and acceleration), temporal information (e.g., time of the day, date, and season of the year), environmental information (e.g., temperature, air quality, and light or noise level), social situation (e.g., who are you with, and people that are nearby), resources that are nearby (e.g., accessible devices, and hosts), availability of resources (e.g., battery, display, network, and bandwidth), physiological measurements (e.g., blood pressure, hart rate, respiration rate, muscle activity, and tone of voice), activity (e.g., talking, walking, and running), schedules and agenda settings.

