To address the English proficiency of underachieving college students, universities often use in-house language tests. C University lacks specific exams for identification, and relies on students’ English performance in the Korean College Scholastic Aptitude Test (CSAT English). This research explores the potential of the TOEIC Bridge, a standardized English proficiency test developed for middle and high school students, to provide an effective, practical measure for screening underachieving students in English. The study investigates the relationship between TOEIC Bridge and CSAT English performance, evaluating the predictive value of TOEIC Bridge on CSAT outcomes. Analyzing data from 418 students, the study identified (1) a moderate correlation between TOEIC Bridge and CSAT English performance, and (2) predictability of CSAT English performance based on TOEIC Bridge, suggesting that TOEIC Bridge can provide a potential tool to identify underachieving students in English. These findings contribute pedagogical insights for tertiary education.

The emergency diesel generator of a nuclear power plant is a emergency AC power source that starts up within 10 seconds when a LOOP(Loss Of Off-site Power) occurs and supplies power to essential safety facilities. In this study, factors affecting start signal input time, engine rotation start time, 30% of engine rated speed, 80% of engine rated speed were studied to secure starting reliability. As a result, it was found that the section before the 30% of engine rated speed was affected by the mechanical management status from the start signal to the fuel oil linkage system. After the 30% of engine rated speed section, it was the maximum fuel supply section, and the time reduction effect through management improvement was insignificant.

The purpose of this study was to critically examine the absolute grading system applied to the English section of South Korea’s College Scholastic Ability Test (CSAT), in a departure from a relative grading system, for the first time in 2017. English language instructors as well as English education researchers have somewhat differing understandings of the concept of absolute evaluation/grading. This paper investigated the nature of absolute evaluation/grading as presented in theses and academic papers as well as research reports, English language assessment textbooks, and press releases from the Ministry of Education (MOE). The study identified four different testing contexts in which the term absolute evaluation/grading is applied: criterion-referenced testing; grading based on fixed cut scores; measurement against external criteria; and norm-referenced testing. While retaining the same test structures as in the prior normreferenced testing situation, the CSAT English section corresponds to the second context, that is, interpreting results based on fixed cut scores. Achievement standards essential for producing criterion-referenced tests have so far been undefined, with cut scores being arbitrarily set. The examination concluded that the CSAT English section under an absolute grading scale is essentially a norm-referenced test that produces a significantly larger percentage of higher-level test-takers. There is a fair likelihood that, unlike MOE’s claim, converting to an absolute evaluation/grading system may not bring about the intended positive change.

In Korea, the College Scholastic Ability Test (CSAT) was introduced in 1993 as the official national college entrance examination. Over the 22 years since its inception, the CSAT has gone through numerous changes in its policies regarding the test structure, test administration, test writers, item bank, item difficulty, test materials, score reporting, and the use of test scores. The present study reviewed these policies and policy changes regarding the CSAT, with a focus on the English section ofthe test. The study found that while some of the policies were laudable for beneficial effects on students and the society, some other policies had detrimental effects on the quality of the test and for stakeholders including students, teachers, and parents. More active involvement of testing professionals is suggested for the improvement of policymaking processes and the policies themselves.

본 논문에서는 복합소재 방호울타리의 6가지 적층 단면에 대한 충돌시뮬레이션을 실시하여 최적 적층 단면을 결정하 였다. 먼저 6가지 단면 형상에 대하여 설문 조사를 통하여 형상을 결정하였다. 결정된 보 단면에 대하여 6가지 적 층설계를 하였다. 적층에는 CSM, DB, DBT, Roving 섬유를 사용하였다. LS-DYNA를 사용하여 수평 및 3:1 경사에 대한 복합소재 보를 모델링하였다. 직육면체 추 및 원통형 추를 사용하여 낙하 충돌 시뮬레이션을 실시하였다. 시뮬레이 션결과를 비교 분석하여 최적 적층 단면을 도출하였다.

본 연구에서는 시험부 벽면압력을 이용한 폐쇄효과 보정 방법에 대한 연구를 수행하였다. 이를 위해 폐쇄형 시험부내의 원형실린더 주위 유동장에 대한 수치적 해석을 수행하여 폐쇄효과 변화에 따른 유동장 및 벽면압력 변화를 연구하였다. 본 연구에서 제시한 벽면압력측정 방법은 Maskell 방법과 Hackett과 Cooper 방법으로 보정된 결과 및 자유흐름 상태와 비교하여 그 타당성을 검증하였다. 그 결과 폐쇄형 시험부 내의 원형실린더의 경우 Maskell 방법과 Hackett과 Cooper 방법은 과보정의 경향을 보였으며, 본 연구에서 제시한 보정 방법은 자유흐름 결과와 일치되는 우수한 보정결과를 보임을 확인하였다.