Search Results
You are looking at 1 - 3 of 3 items for
- Author or Editor: J. Koh x
- Refine by Access: All Content x
Abstract
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.
Abstract
Losses of trace elements in plant samples after dry ashing were investigated. Plant samples were heated in crucibles at 105–600°C for 0.5–24 hours in a muffle furnace. The amounts of elements remaining after heating were determined by INAA. The amounts of Cl and Br decreased over the range 200–400°C in all samples, especially in stem samples. The amount of Na increased over the range 450–600°C, possibly because of contamination from the crucibles. Dry ashing is suitable for analyzing most elements in plant samples.
Abstract
A delayed neutron counting system has been implemented at the HANARO research reactor in 2007. Thermal neutron flux measured at the NAA #2 irradiation hole coupled to the delayed counting system, was higher than 3 × 1013 n cm−2 s−1. The delayed neutron counting system is composed of 18 3He detectors which are divided into three groups with six detectors and the collected signals of each group are processed to a digital signal. The count numbers were measured with the uranium mass by using NIST SRMs under fixed analytical condition and their correlation could be determined. Finally, delayed neutron activation analysis has been carried out for the determination of uranium mass fraction in the collected environmental samples.
