Showing papers by "Yuh-Shan Ho published in 2008"

Assessment of world aerosol research trends by bibliometric analysis

Abstract: This study was to explore a bibliometric approach to quantitatively assessing current research trends on atmospheric aerosol, using the related literature in the Science Citation Index (SCI) database from 1991 to 2006. Articles were concentrated on the analysis by scientific output, research performances by individuals, institutes and countries, and trends by the frequency of keywords used. Over the years, there had been a notably growth trend in research outputs, along with more participation and collaboration of institutes and countries. Research collaborative papers shifted from national inter-institutional to international collaboration. The decreasing share of world total and independent articles by the seven major industrialized countries (G7) was examined. Aerosol research in environmental and chemical related fields other than in medical fields was the mainstream of current years. Finally, author keywords, words in title and keywords plus were analyzed contrastively, with research trends and recent hotspots provided.

Use of citation per publication as an indicator to evaluate contingent valuation research

Abstract: This is the first article using bibliometrics to study the field of contingent valuation research. The purpose of this study was to evaluate the contingent valuation research performance based on all the related articles in SCI and SSCI databases from 1991 to 2005. An indicator named citation per publication (CPP) was presented in this study to assess the impact of article output per year, different countries, institutes, and authors from the worldwide. Publication per institute (PPI) in a country was used to be an indicator to compare institute’s research performance by country. Citation analysis was made to select the most frequently cited articles since publication to 2005 of each year. A citation model was applied to describe the relationship between the cumulative number of citations and article life. The results indicate that with the increase article output per year, the CPP decreased slightly since 1997. The USA produced 55% of all pertinent articles. Institutes from the UK had a higher PPI. The most prolific institutes and authors, and the most frequently cited articles per year were all listed. In addition, a citation model was successfully applied to evaluate performance of each year, and the most frequently cited articles of each year were also compared by the model.

Bibliometric analysis of biosorption technology in water treatment research from 1991 to 2004

Abstract: A bibliometric analysis based on the Science Citation Index was carried out on biosorption technology-related publications during the time span of 1991 to 2004 in water treatment research in the ISI subject categories of environmental engineering, environmental sciences, and water resources. Results showed that yearly production has sharply grown. The US and Canada respectively produced 13% and 12% of the total output. In the five years after publication, 34% of papers were cited more than 10 times, while 5.7% were never cited in the same period. Nine papers of the top 20 most-frequently cited articles were published in Water Research.

Use of citation per publication as an indicator to evaluate pentachlorophenol research

Abstract: The objective of the study was to perform a bibliometric analysis of all pentachlorophenolrelated publications in the Science Citation Index (SCI). Analyzed parameters included document type, language of publication, page count, publication output, authorship, keywords plus, publication pattern, citation and country of publication. The US produced 29% of the total single country publications where the seven major industrial countries accounted for the majority of the total production (66%). An indicator citation per publication was successfully applied in this study to evaluate the impact of number of authors, countries, and journals. The mean value of citation per publication of collaborative papers was higher than that of single country publications. In addition analysis of keywords plus in different period was applied to indicate a research trend.

Kinetic biosorption study of cadmium onto coconut copra meal as biosorbent

Abstract: The sorption of cadmium ions on an agricultural by-product, coconut copra meal, was investigated. A batch sorption model, based on the assumption of the pseudo-second-order mechanism, was applied to predict the rate constant of sorption, the equilibrium sorption capacity and the initial sorption rate with the effect of initial cadmium concentration and temperature. Activation energy of sorption was determined based on the pseudo-second- order rate constants. In addition, the experimental results were analysed by pseudo-Langmuir, pseudo-Freundlich and pseudo-Redlich-Peterson isotherms based on pseudo-second order kinetic expression constant. Both pseudo- Langmuir and pseudo-Redlich-Peterson isotherms were found to represent the measured sorption data well. According to the evaluation using the pseudo-Langmuir equation, the monolayer sorption capacity was obtained to be 2.59 mg/g.

Bibliometric analysis of cataract research from 1991 through 2006, analyzed with the science citation index

Abstract: A cataract is an opacifying process of the lens of the eye that causes disturbance of vision. The major risk factor for lens opacification is aging. Previous studies had focused on genetic factors, environmental influences, metabolic and biochemical changes in the crystalline lens (West and Valmadrid, 1995). It is a common disease in ophthalmology field. Etiology and treatment of cataract had been extensively studied in the past several dacades. Before 1960, cataract study was confined to etiology and pidemiology. Since microsurgery advanced after microscope developed, cataract research was began almost simultaneously after the demonstration of ocular microsurgery since 1970 (Shugar, 1997). More systemic study and review was developed since cataract surgery had advanced a lot over the years. ECCE was introduced in 1970 and many papers were explosively published. During the past two decades, the scientific output from medical institutions has been increasingly subjected to phacoemulsification which made it possible to establish vision after surgery. In these years, more sophisticated surgical skills were developed, and more documents were published in these years. In private clinic or hospital related to cataract re- search have expanded considerably and today encompasses many of the important areas of cataract study. Later sections will describe the main features of cataract studies in these years. This part of the paper is not concerned to give full technical details of the studies, most of which are described in accompanying reference. Rather, it gives an account of the way the future trend in cataract study. In spite of significant expansion of literatures for cataract in ophthalmology, little is known about how future trends will be without gathering statistics. This information is of crucial importance, since researcher can have more direction to the future study. Besides, various academic study based on fund assistance needs more information to make more accurate decision. The purpose of the present study was to gain insight into the trends of various contributing factors to the advancement of cataract-related research in the subject categories of ophthalmology. Data from SCI were analyzed to determine the quantitative impacts of cataractrelated research, based on year of publication, authorship, international collaborations, and keyword trends.