The 21st Century Frontier Program, which is one of the R&D programs funded by Korean government, was launched in 1999 to elevate the status of Korean science and engineering capabilities to the advanced nation in the strategic fields. Currently, 23 different fields of science and engineering programs are carried out by researchers in institutes, universities and industries. Center for Advanced Materials Processing (CAMP) was formulated in 2001 to develop the advanced materials as well as to improve the parts manufacturing process. The main role of CAMP is proposing and forecasting the long term vision in Materials Processing Technology and also supporting the project teams for their best performance in R&D. The CAMP program consists of 5 research areas such as, Multi-layer Ceramic Electronic Parts, Powder Formed Precision Parts, 3 Dimensional Polymer Based Composites, Functional Metal Sheets, Parts Integration Technology. An introduction of R & D activities at CAMP, specially focusing on powder metallurgy, will be presented.

We consider a mixed model with covariates considered as fixed effects and a random factor. In this paper, we consider methods for constructing confidence intervals on measures of variability in repeatability and reproducibility study to the mixed model with fixed effects and random effects. Computer simulation is used to determine how well confidence intervals maintain the stated confidence level and compare confidence interval lengths for the methods. A numerical example is considered to illustrate the confidence intervals proposed.

One of the most important processes of import and export is a publication over the Bill of Loading. In the publication S/R(Shipping Request) & check B/L for reviewing are circulated among consignors, forwarders, shipping companies and airlines by fax & e-mail. Or there should be expensive an One to One system, like an EDI. Each party has to re-input S/R data to their own systems and check several times. The S/R data are converted digital to analog type and analog to digital repeatedly to check in the process. As the process goes by there can be not only input data errors but also waste of time & cost. ECR(Electronic Character Recognition) is a technology can solve the Problem. Considering the data structure of documents in many systems used ECR samples S/R data from documents written in the digital type. But it is not enough with it only. To make N to N composition in reality more efficient we make a documents hub on the web reengineering the existing process to One to One relation. The ECR documents hub system has given us beneficial effects over a year throughout a field test. I hope this study will be used to build the National Electronic Trade Platform And furthermore in internationality

This paper investigates Korean EFL learners’ perceived phonetic dissimilarity of English liquids /l/ and /r/ to test the Korean learners’ relative acquisition difficulty of the two English liquids. Contrary to the prediction of the contrastive analysis hypothesis, a hypothesis from Flege’s (1995) Speech Learning Model asserts that the greater the perceived phonetic dissimilarity between an L2 speech sound and the closest L1 sound, the more likely learners will be to discern the difference between the L1 and L2 sounds. Fifteen Korean EFL learners were asked to judge how well English /l/ and /r/ in various phonological environments represent the Korean liquid, using a scale ranging from 0 (“not like”) to 6 (“exactly the same”). The results of the judgment task showed that Korean L2 learners perceived English /l/ to be more similar to Korean /l/ than English /r/ in syllable-initial, consonant cluster, and intervocalic positions, but not in syllable-final position. The results of the present study are expected to provide a basis for future research which investigates Korean learners’ perception and production of English /l/ and /r/.

The present study investigates the effect of pronunciation training on Korean adult learners’ perception and production of English vowels, /i/, /I/, /u/, and /Ω/. The study examines 1) the effect of pronunciation training on perception and production and 2) the maintenance of the effect over a one-month period. The subjects were 10 Korean graduate students who took a 4-week long English pronunciation training course. They were tested before and after pronunciation training and tested again one month after the training. In each test, both perception and production of the vowels were tested to see if the subjects were able to distinguish tense and lax vowels. In the perception part, subjects listened for words and checked the vowel (either tense or lax) sound they heard. For the production part, subjects read the selected words which contained the target vowels. The results show that pronunciation training has an effect, which supports the teachability of phonology in adulthood; however, the maintenance of the effect demonstrated a difference between perception and production, in which the effect was maintained in production but not in perception. Based on the results of the study, implications are discussed.

In order to investigate the effects of magnetized water treated with HI-Scalper153R on body performance and ammonia concentration in feces of broiler chicks, a feeding trial was conducted with a total of 180 broiler chicks. Each treatment had 18 chicks with 5 replications. Chicks during experimental periods, broiler chicks were fed magnetized water and subterranean water, respectively. The results obtained summarized as follows: Body weight gain slightly increased for broiler chicks fed magnetized water compared with control. But, there is no significantly (p=0.36) different among treatments. Feed intake significantly (p=0.046) decreased for broiler chicks fed magnetized water compared with control. Feed efficiency was significantly (p=0.020) improved for broiler chicks fed magnetized water of each periods when compare to the control. Especially, in starter periods, the feed efficiency of magnetized water treatment increased by 10% more than control (1.80 vs 1.69). In feces, average ammonia concentration (ppm) significantly (p=0.004) decreased in the magnetized water treatment compare to control. Especially, the magnetized water treatment decreased by 2.2 times compared to the control in ammonia concentration of feces (83 vs 37ppm).

본 연구는 하수 및 오폐수 처리를 위해 침지식 수처리 공정 적용을 위한 평판형 MF막인 ENVIS(R)을 이용한 MBR SYSTEM 적용에 관한 연구이다. (주)퓨어엔비텍에서 만든 장치를 이용하여 공장의 오수시설(10;m3/일)과 폐수처리장(30;m3/일) 현장에서 실험을 수행한 결과, 공장 오수처리에 있어 제거율은 각각 SS 99.7%, BOD 97.6%, COD 96.8%였으며, 폐수처리에 있어 제거율은 각각 SS 99.6%, BOD 95.6%, COD 80.3%였다

The purpose of this study is to suggest the modification of activities to introduce the nature of science in earth science classrooms. A small modification can turn ordinary textbook activities into the nature of science activities. Since earth science could provide a good basis for the tentative, creative, and socially and culturally embedded nature of science, as well as appropriate understanding about scientific methods, careful modification of earth science activities could be effective for students to understand the nature of science. Considering which aspects of the nature of science are appropriate, along with the possible change in the activity, teachers will be able to modify textbook activities effectively. An example modification of H-R diagram activity was also suggested.