A method of topology synthesis based on graph theory and mechanism combination theory was applied to the configuration design of locomotion systems of lunar exploration rovers(LER).Through topology combination of whee...A method of topology synthesis based on graph theory and mechanism combination theory was applied to the configuration design of locomotion systems of lunar exploration rovers(LER).Through topology combination of wheel structural unit,suspension unit,and connecting device unit between suspension and load platform,some new locomotion system configurations were proposed and the metrics and indexes to evaluate the performance of the new locomotion system were analyzed.Performance evaluation and comparison between two LER with locomotion systems of different configurations were analyzed.The analysis results indicate that the new locomotion system configuration has good trafficability performance.展开更多
The research was conducted in order to determine influence of conative characteristics on the criterion variables in Special Olympics athletes and partners in football. For this purpose, 80 athletes and partners engag...The research was conducted in order to determine influence of conative characteristics on the criterion variables in Special Olympics athletes and partners in football. For this purpose, 80 athletes and partners engaged in football were tested. For the assessment of conative characteristics, the measurement instrument CON6 was selected by which the following conative regulators were evaluated： activity regulator, organ function regulator, defense reaction regulator, attack reaction regulator, system for coordination of regulatory functions, system for integration of regulatory functions, and system for excitation and inhibition. To assess success in a football game, the following variables were used： evaluation of the effectiveness of the techniques, evaluation of the performance effectiveness in the offensive phase, evaluation of the performance effectiveness in the defensive phase, evaluation of individual creativity during the game, team responsibility evaluation, engagement evaluation, behavior evaluation, general evaluation of success in the game. All the data in this research were analyzed at the Multidisciplinary Research Center, Faculty of Sport and Physical Education, University of Pristina, by the system of data processing programs DRSOFT developed by D. Popovi~ and K. Momirovi~. The algorithms and programs implemented within this thesis have been fully presented and the results of the programs have been analyzed.展开更多
The positions and absolute proper motions of 264 stars in the field of about 70′ x 70′ around the globular cluster NGC6205 were determined. In the astrometric reduction, three early and three late epoch plates taken...The positions and absolute proper motions of 264 stars in the field of about 70′ x 70′ around the globular cluster NGC6205 were determined. In the astrometric reduction, three early and three late epoch plates taken with the 40-cm refractor at Shensan, Shanghai, China, were used, with the epoch span of 73 a. The reduction was done using the central overlapping method, with 5 Hipparcos stars and 38 Tycho-2 stars as reference stars. Based on the reduced data of proper motion, the membership probabilities of the sample stars were determined. An absolute proper motion of the cluster of(1.49±0.36)mas a-1 in R.A. and (3.06±0.35)mas a-1 in Decl. was obtained. From this proper motion, together with distance and radial velocity data, we derived the space motion of NGC6205 and the orbit of the cluster in the Galaxy via numerical integration.展开更多
基金Supported by National "863" High-Tech Program (No.2006AA04Z231)Foundation of State Key Laboratory of Robotics and Systems (No.SKLRS-200801A02)+1 种基金the College Discipline Innovation Wisdom Plan (No.B07018)Natural Science Foundation of Heilongjiang Province (No.ZJG0709)
文摘A method of topology synthesis based on graph theory and mechanism combination theory was applied to the configuration design of locomotion systems of lunar exploration rovers(LER).Through topology combination of wheel structural unit,suspension unit,and connecting device unit between suspension and load platform,some new locomotion system configurations were proposed and the metrics and indexes to evaluate the performance of the new locomotion system were analyzed.Performance evaluation and comparison between two LER with locomotion systems of different configurations were analyzed.The analysis results indicate that the new locomotion system configuration has good trafficability performance.
文摘The research was conducted in order to determine influence of conative characteristics on the criterion variables in Special Olympics athletes and partners in football. For this purpose, 80 athletes and partners engaged in football were tested. For the assessment of conative characteristics, the measurement instrument CON6 was selected by which the following conative regulators were evaluated： activity regulator, organ function regulator, defense reaction regulator, attack reaction regulator, system for coordination of regulatory functions, system for integration of regulatory functions, and system for excitation and inhibition. To assess success in a football game, the following variables were used： evaluation of the effectiveness of the techniques, evaluation of the performance effectiveness in the offensive phase, evaluation of the performance effectiveness in the defensive phase, evaluation of individual creativity during the game, team responsibility evaluation, engagement evaluation, behavior evaluation, general evaluation of success in the game. All the data in this research were analyzed at the Multidisciplinary Research Center, Faculty of Sport and Physical Education, University of Pristina, by the system of data processing programs DRSOFT developed by D. Popovi~ and K. Momirovi~. The algorithms and programs implemented within this thesis have been fully presented and the results of the programs have been analyzed.
基金The authors are indebted to the staff in PDS group of Purple Mountain Observatory, CAS, for their kindassistance in measuring the plates. This research was partially supported by NKBRSF19990754 the National Natural Scienece Foundation of China (Gran
文摘The positions and absolute proper motions of 264 stars in the field of about 70′ x 70′ around the globular cluster NGC6205 were determined. In the astrometric reduction, three early and three late epoch plates taken with the 40-cm refractor at Shensan, Shanghai, China, were used, with the epoch span of 73 a. The reduction was done using the central overlapping method, with 5 Hipparcos stars and 38 Tycho-2 stars as reference stars. Based on the reduced data of proper motion, the membership probabilities of the sample stars were determined. An absolute proper motion of the cluster of(1.49±0.36)mas a-1 in R.A. and (3.06±0.35)mas a-1 in Decl. was obtained. From this proper motion, together with distance and radial velocity data, we derived the space motion of NGC6205 and the orbit of the cluster in the Galaxy via numerical integration.
