Authors:Yong-Sam Chung, Jong-Hwa Moon, Kwang-Won Park, Sun-Ha Kim, Jin-Hong Lee, and Kil-Yong Lee
Instrumental neutron activation analysis was used for the analysis of 25 trace elements in airborne particulate matter (PM) for air pollution monitoring. For the collection of air samples, the Gent stacked filter unit low volume sampler and two types of Nuclepore polycarbonate filters were employed. Samples were collected at selected sampling dates in suburban and industrial regions of Daejon city in the Republic of Korea. Mass concentrations and black carbon of PM were measured, and enrichment factors were calculated. The results were used to describe the emission sources and their correlation patterns.
This study performs a webometric analysis to explore the communication characteristics of scientific knowledge in a national
scholarly Web space comprising top ranking universities and government supported research institutions in South Korea. We
found significant differences in scholarly communication activity as well as linking behavior among different subspaces in
addition to institutional differences. We also found the usefulness of the ADM approach in analyzing the metric data containing
extreme outliers and discovered the directory model as the most appropriate. Page counts were found significantly correlated
with inlinks as well as with outlinks at the directory level in the whole scholarly Web space.
Authors:Jin-Hong Lee, Joung-Myung Lim, Ki-Hyun Kim, Yong Chung, and Kil-Yong Lee
Instrumental neutron activation analysis was used to measure the concentrations of about 27 elements associated with airborne PM 10 samples that were collected from a roadside sampling station at a moderately polluted urban area of Taejon city, Korea. The magnitude of their concentrations was clearly distinguished and spanned over four orders. If compared in terms of enrichment factors, it was found that certain elements (e.g., As, Br, Cl, Sb, Se, and Zn) are enriched in PM 10 samples of the study site. The factor analysis indicated three factors with statistical significance, which may exert dominant controls on regulating the metal concentration levels in the study area.
The relative ans single comparator methods have been applied to determine 7 rare-earth elements and U, Th in Korean Monazites by 14.5 MeV neutron activation analysis. The (n, 2n) nuclear reactions are used for all elements except La, for which (n, p) reaction is used. Al is used as a flux monitor for the relative method and as a singlle comparator for the single comparator method. The analytical results obtained by the two methods agree well within 3% deviation except for Sm and Gd. These results are also compared with the result obtained by a single comparator method using reactor neutron.
It is well known from previous research activities that R&D collaboration among economic actors for knowledge production is
very important. An accompanying analysis of the impact of R&D collaboration on innovative performance has to be conducted
for transferring knowledge to the globalized knowledge-based economy. When we first investigated previous research concerning
R&D collaboration, we found some limitations in the analysis methodology. In order to overcome these limitations in previous
research, we applied a Bayesian network for analyzing the impact of R&D collaboration in Korean firms on their innovative
Authors:Yun Sang Cho, Sang Eun Lee, Youngboo Jang, Sukchan Jung, and Jong Man Kim
diagnosis of bTB. Materials and methods Ethics statement Animal and Plant Quarantine Agency (APQA) is a national central research institute in the Republic of Korea that has been researching and developing diagnosis, treatment, and prevention technologies
This article addresses the potential effectiveness of blind review in selecting and funding research proposals in a “scientifically
small” country. By analyzing 474 responses of the blinded reviewers ever worked for Korea Science and Engineering Fund, it
was found that blind review is fairly effective. About two thirds of the blinded reviewers were unable to recognize the applicants
accurately. The applicant detection was affected by (1) physical age, (2) professional experience, and (3) geographical location
of doctoral education of the applicant, (4) review experience, (5) rank of employing universities of the reviewers, and (6)
similirity of research interest between an applicant and a reviewer. It was also found that blind review was more strongly
advocated by those who had made a wrong guess or who had given up guessing. Implications of the findings and future research
directions were discussed.
Authors:Yoon Yoon, Seung Lee, Tong Kim, Tae Lee, and Kil Lee
Tritium and 14C concentration in hot spring water in Korea were determined. Tritium in the most hot spring samples could not detected and
concentration range was <0.5–1.31 TU. And 14C contents were ranged 1.7–78.6 pMC. From the 3H and 14C analysis, we found some hot springs are mixed with recent groundwater and hot spring water ages were estimated from 1,940
to 32,800 years. And also, 226Ra and 228Ra were determined simultaneously in hot spring water, and some other radionuclides were also analyzed. Content distribution
of 222Rn was 50–3,760 pCi/L, 226Ra was <0.003–0.15 Bq/L and 228Ra was below the detection limit.
The contents of H-3 and C-14 in groundwater and surface waters around low and medium-level atomic waste repository site in
Korea were determined. The concentrations of C-14 were in the range 0.186–0.287 Bq/L. The H-3 concentration of the groundwaters
and surface waters were <0.06–5.75 and 1.22–4.74 Bq/L. The average H-3 contents of west, north and south direction were 1.18 ± 0.12,
1.11 ± 0.78 and 2.85 ± 2.66. H-3 and C-14 concentrations in the south direction were relatively higher than west and north
direction samples. The surface waters sampled from catchment were four times higher than average H-3 concentration in precipitation.
The concentrations of H-3 and C-14 within 5 km area samples were much higher than other samples.