送交者: lv12345 于 2005-11-17, 05:16:47:
Two recent reports (1, 2) contain a text mining survey and analysis of the global nanotechnology literature, and should be of use to nanotechnology research performers, managers, planners, sponsors, evaluators, vendors, and implementers/ users.
"The Structure and Infrastructure of the Global Nanotechnology Literature" identifies the main nanotechnology literature infrastructure (prolific authors, Centers of Excellence, countries) and technical structure (pervasive technical thrusts and thrust relationships). "The Seminal Literature of Nanotechnology Research" identifies the documents most highly cited by the global 2003 nanotechnology literature, including vintage and very recently cited documents. It also examines the evolution of journals that have assumed prominence in publishing these seminal documents. Some highlights of these documents include:
The Far Eastern countries have expanded nanotechnology publication output dramatically in the past decade.
The Peoples Republic of China ranks second to the USA (2004 results) in nanotechnology papers published in the Science Citation Index (SCI), and has increased its nanotechnology publication output by a factor of 21 in a decade.
Of the six most prolific (publications) nanotechnology countries, the three from the Western group (USA, Germany, France) have about eight percent more nanotechnology publications (for 2004) than the three from the Far Eastern group (China, Japan, South Korea).
While most of the high nanotechnology publication-producing countries are also high nanotechnology patent producers in the US Patent Office (as of 2003), China is a major exception. China ranks 20th as a nanotechnology patent-producing country in the US Patent Office.
China has minor representation in the most highly cited nanotechnology documents
Over the past decade, Science magazine has contained about 2-3% of total nanotechnology publications (citation frequency threshold of three), but over 40% of the most highly cited nanotechnology publications.
Both reports include recommendations for future research of the global nanotechnology literature. Final MSWord versions of both reports are available for downloading (see References section).
Finally, to place these nanotechnology results in a larger perspective, an ongoing energetic materials (explosives, propellants) study shows China to be second to the USA in numbers of energetic materials SCI articles published for the first half of 2005, and even more competitive with the USA when energetic materials articles from the more applied Engineering Compendex are compared. In 1998, China had one-fifth the number of SCI research articles as the then second place holder, Russia, and by 2004, China was tied with Russia.
Thus, in these two critical technologies studied in detail, nanotechnology and energetic materials, China is second to the USA in absolute numbers of SCI publications, despite the fact that China's aggregate SCI paper production is less than 25 percent that of the USA. An almost-completed text mining study of China's overall S&T provides other examples of China's global technology competitiveness today, and shows specific technology sub-areas (including nanotechnology sub-areas) in which China is actually leading the USA in articles published. As the above studies have shown, aggregate country publication productivity results can be somewhat misleading. Publications in critical technologies and sub-technologies are most important, and should serve as the basis for publication comparison.
RNK
REFERENCES
1. Kostoff RN, Stump JA, Johnson D, Murday JS, Lau CGY, and Tolles WM. The structure and infrastructure of the global nanotechnology literature. DTIC Technical Report ADA435984 (http://www.dtic.mil/). Defense Technical Information Center. Fort Belvoir, VA. 2005. An MSWord version of the report’s final draft is available in downloadable form at http://www.onr.navy.mil/sci_tech/special/354/technowatch/textmine.asp
Go to third report listed. Click on Word version. This report is based on the journal paper “Kostoff RN, Stump JA, Johnson D, Murday JS, Lau CGY, Tolles WM. The structure and infrastructure of the global nanotechnology literature. Journal of Nanoparticle Research. In Press.”
2. Kostoff RN, Murday JS, Lau CGY, Tolles WM. The seminal literature of nanotechnology research. DTIC Technical Report ADA435986 (http://www.dtic.mil/). Defense Technical Information Center. Fort Belvoir, VA. 2005. An MSWord version of the report’s final draft is available in downloadable form at http://www.onr.navy.mil/sci_tech/special/354/technowatch/textmine.asp
Go to fourth report listed. Click on Word version. This report is based on the journal paper “Kostoff RN, Murday JS, Lau CGY, Tolles WM. The seminal literature of nanotechnology research. Journal of Nanoparticle Research. In Press.”