| Based on 1978-2007 publication and citation information of physics from SCI database, this dissertation does a scientometric evaluation of research performance and international impact on China’s physics, reveals some characteristics of its development. The results are also compared with Japan and India, which are superpowers in Asia’s physics. Besides the traditional indicators, this dissertation also improves or constructs some indicators for this study. The major contents are summarized as follows:Firstly, the research performance of China’s physics is evaluated by using classical research performance indicators. The SCI papers of China’s physics had achieved a leap in the development both on publication number and their impact, during 1978-2007. The publication number of China’s physics had exceeded India and Japan, since 2000. Though the average number of citations per paper in total of China were still lower than Japan, the China had exceeded Japan in applied physics and some other subfields. Besides in particle physics and a few other subfields, the citation performance of China had also exceeded India. According to Active Index for subfields of China’s physics, the Chinese physicists tended to contribute their work to multidisciplinary physics journals and their research interests was moving to applied study.Secondly, the production of highly cited papers is analyzed with the help of h-type indices based on fixed citation window. The introducing of fixed citation window makes h-type indices comparable among different publication years and makes h-type sequences comparable among different research object. The h-type indices of China’s physics and its subfields showed growth trends apparently from 1978 to 2003, and came to Japan, which indicated the increasing trend of highly cited papers for China’s physics. But if the number of papers entering h-core papers of world’s physics were the criterion, China’s physics had been still quite a distance from Japan’s, and had only a little advantage over India’s, on hot issues and frontier of physics after 2000. From the point of subfields distribution for highly cited paper, the development of China’s physics was more balanced than India’s, and India’s physics gave much more attentions on particle physics. It is the reason why the average citations per paper of India’s physics was a litter higher than China’s physics that the publication number of China’s physics was much more than India’s while the number of highly cited paper of India’s physics was close to China’s physics.Thirdly, this study constructs publication-citation matrix whose data items are more than 1 million. The R-cluster rhythm indicators are established on the basis of publication-citation matrix of very-large scale data. The rhythm indicators are employed to measure the evolutionary rhythm of world’s, China’s, India’s and Japan’s physics, the results of theirs are compared. The rhythm indicators concentrate on the deviation between observed value’s and expectations, which are different from other growth indicators before. The methodology of rhythm indicators make them take into account full citation window and comparable in time dimensionality, which could demonstrate the impact of papers delayed recognition papers or whose citation peak moving backwards.Lastly, citation feedback rate is constructed on reference-citation matrix for measuring the observing citing-cited relationship. This indicator is the ratio between average citations per paper and average references per paper, which average citations per paper denotes the citing level and average references per paper denotes cited level. In essence, citation feedback rate reflect the efficiency of knowledge input- knowledge out, which is an entirely new indicator. The citation feedback rate of China’s physics rose from 15.7% to 35% while its average references per paper maintained growing during 1978-2003, which had exceeded world average level and India’s, and came to Japan’s.Some suggestions are advised based on these conclusions. |
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