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南部地方에서 옥수수 및 수수-수단그래스交雜種의 靑刈栽培利用計劃樹立에 關한 硏究
朴贊浩 영남대학교 자원문제연구소 1985 資源問題硏究 Vol.4 No.-
In order to obtain information on the planning of soiling crop production in the southern part of Korea, a corn and a sorghum-sudangrass hybrids were planted in the College of Agriculture and Animal Science Research Farm, Yeungnam University (Gyongsan) in 1983. Observations were made for 30 days from about 1 m high in plant height of corn and sorgh-um-sudangrass hybrids to two weeks after tasseling stage of corn and early heading stage sorghum-sudangrass hybrid. Shoot fresh weight of both corn and sorghum-sudangrass hybrids showeds a sigmoid curve and it was levelled off after tasseling stage of corn or early heading stage of sorghum-sudan-grass hybrid, but shoot dry weight increased linearly as plant advanced in growth. Until tasseling stage of corn and early heading stage of sorgum-sudangrass hybrid percent dry weight was about 11% in corn and 13% in corghum-sudangrass hybrid and then it increased very rapidly. Therefore, a reciprocal accumulative curve based on dry weight seems to be more reasonable than that of fresh weight to estimate required land area for a certain size of anirals, amounts of daily dry matter intake, and period of soiling crop utilization. A seeding rate of 12 kg/10a of corn was more feasible than that of 9 kg/10a for soiling crop production.
Cognitive Diagnostic Assessment of English Grammar for Korean EFL Learners
박찬호,조수경 한국영어교육학회 2011 ENGLISH TEACHING(영어교육) Vol.66 No.4
If the purpose of an assessment is diagnosing examinees’ knowledge states to improve their learning, more fine-grained information than the overall level of their ability is necessary. Recent advances in diagnostic assessment triggered the development of cognitive diagnosis models (CDMs), such as the deterministic inputs, noisy “And”gate (DINA) model. Although CDMs for language assessments have been applied to reading or listening test data, a CDM may produce more practical results if the construct to measure has specific and well-defined skill attributes as in a grammar assessment. For this study, a grammar test consisting of 40 multiple-choice items was administered to 3,000 Korean learners of English as a foreign language. From the test items, a Q-matrix, which is an essential tool for CDMs, was constructed based on six grammar skills. As a result, skill profiles were obtained for all examinees. This diagnostic information can be used for tailored instruction. Issues with regard to applications of CDMs to language assessments are also discussed.
An Investigation of a Country-Level Diagnostic Assessment Model for the TIMSS
박찬호 한국비교교육학회 2018 比較敎育硏究 Vol.28 No.5
The purpose of educational assessments such as the Trends in International Mathematics and Science Study (TIMSS) is to compare groups such as countries. When the unit of measurement is above the student level, group-level diagnostic assessment based on multilevel item response theory (ML-IRT) can be considered just as cognitive diagnosis models are developed from item response theory. This study suggests an ML-IRT-based group-level diagnostic assessment model by modifying an item feature model by Park and bolt (2008). The model is illustrated on the recently released TIMSS 2015 Grade 8 mathematics assessment. The results provide skill profiles for the studied countries and the nine cognitive attributes; that is, the attribute effects can be compared across the countries and also across the attributes. By controlling unexplained variance, the suggested model may provide more reliable and more informative group-level comparisons. The results are interpreted using an example. Limitations and directions for future research are also discussed.
필라테스 운동 여성 참여자들의 특성이 신체조성 및 심리적 요인에 미치는 영향
박찬호,이호성,남라하 한국웰니스학회 2022 한국웰니스학회지 Vol.17 No.2
The purpose of this study was to investigate how the characteristics of female Pilates exercise participants affect body composition and psychological factors, and to investigate the correlation between body composition and psychological factors. The participants of this study selected 100 women participating in the Pilates exercise and derived the following results. There were no significant differences in body composition and psychological factors according to the Pilates exercise participation period. In the difference in body composition and psychological factors according to the age of participation in Pilates exercise, happiness among psychological factors showed a significant difference, and the group under 40s felt happier than the group over 40s. There were no significant differences in body composition according to the subjective health status of Pilates exercise participants, but significant differences were found in both happiness and self-esteem in psychological factors. Lastly, as a result of analyzing the causal relationship between body composition and psychological factors, there was no causal relationship between body composition and psychological factors. In future research, it is necessary to conduct research on exercise methods suitable for each individual Pilates participant, as well as various samples and variables. 본 연구는 필라테스 운동 여성 참여자들의 특성이 신체조성 및 심리적요인에 어떠한 영향을 미치는 지를 알아보고 신체조성과 심리적 요인 간 상관관계를 규명하는 것이다. 본 연구 참여자들은 필라테스 운동에 참여하는 여성 100명을 선정하여 다음과 같은 결과를 도출하였다. 필라테스 운동 참여기간에 따른 신체조성 및 심리적 요인의 차이에서 유의한 차이가 나타나지 않았다. 필라테스 운동 참여연령에 따른 신체조성 및 심리적 요인의 차이에서 심리적 요인 중 행복이 유의한 차이를 보였고 40대 이하 집단이 40대 이상 집단보다 행복을 더 느끼는 것으로 나타났다. 필라테스 운동 참여자의 주관적 건강상태에 따른 신체조성 및 심리적요인의 차이에서 신체조성은 유의한 차이가 나타나지 않았으나 심리적 요인의 행복과 자아존중감 모두 유의한 차이가 나타났다. 마지막으로 신체조성 및 심리적 요인 간 인과관계 분석 결과 신체조성과 심리적요인 간에는 인과관계가 나타나지 않았다. 향후 연구에서는 필라테스 참여자 개개인에게 적합한 운동법과 다양한 표본 및 변인에 관한 연구가 진행될 필요성이 있다.