• Journal of Bio-Environment Control
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• v.26 no.2
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• pp.146-150
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• 2017

This research investigated the effect of photo/dark period and relative humidity during dark period on the growth and quality of water dropwort in a closed-type plant factory system. At 30 days after planting, the shoot fresh weight of water dropwort under relative humidity of 60/90%(light/dark) treatment significantly higher than that under relative humidity of 60/60% treatment. The shoot fresh weight of water dropwort increased by extending light period under relative humidity of 60/60% treatment, but 16/8h photo/dark period showed the best shoot fresh weight, followed by 20/4h and 22/2h under relative humidity of 60/90% treatment. In the relative humidity of 60/90% treatment, the tipburn occurrence was reduced under 16/8h photo/dark period condition as 1.4%, whereas it was significantly increased under 20/4h and 22/2h of relatively long light time duration as 15.5% and 30.3%, respectively. In the relative humidity of 60/60% treatment, the tipburn occurrence was 15.5% under 16/8h photo/dark period condition and those under 20/4h and 22/2h photo/dark period condition were higher than 25%. The stem hardness of water dropwort was lowest in relative humidity of 60/90% and 16/8h photo/dark period treatment. The mineral contents of leaves were decreased by extending light period, but the contents of Ca were not different significantly among the treatments except the 60/60% and 22/2h treatment.

• Journal of Korea Game Society
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• v.15 no.2
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• pp.95-104
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• 2015

Many games for English vocabulary learning, such as hangman, cross puzzle, matching, etc, have been developed which are of board-type or computer game-type. Most of these computer games are adapting strategy-style game plays so that there is a limit on giving the fun, a nature of games, to learners who do not like games of this style. In this paper, a system for memorizing new English words is proposed which is based on a single-player car racing game targeting youths and adults. In the game, the core of our system, a learner drives a car and obtains game points by colliding with English word texts like game items appearing on the track. The learner keeps on viewing English words being exposed on the track while driving, resulting in memorizing those words according to a learning principle stating viewing is memorization. To our experiment, the effect of memorizing English words by our car racing game is good, and the degree of satisfaction with our system as a English vocabulary learning tool is reasonably high. Also, previous word games are suitable for the memory enforcement of English words but our game can be used for the memorization of new words.

• Journal of Convergence for Information Technology
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• v.10 no.7
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• pp.240-248
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• 2020

This study compares and analyzes the tasks and evaluation methods of national technically qualified Skin Esthetic through systematic literature review of prior studies on qualification tests for Skin Esthetic qualification and process evaluation types that have been reorganized based on NCS. The national technical qualification is based on the ability to work through memorization-oriented theoretical tests and simple repetition of functions, and the Qualified qualification is relatively short in the period of test execution, and the reliability of its internal evaluation at the enforcement agency continues to be reduced. In the future, national technical qualification require innovation in the qualification system to reflect skilled demand at industrial sites, and course-based qualification for require supplementation and improvement of education and training courses so that they can learn skilled skills at the site.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1997.05a
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• pp.17-22
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• 1997

본 연구에서는 고구마 조직배양묘의 $CO_2$ 교환량을 측정하기위해 개방형 광합성측정장치의 원리를 이용해 자체제작한 $CO_2$ 교환량 측정장치를 이용하여 공기 주입구와 배출구의 $CO_2$ 농도를 연속측정하고, 명기와 암기에 있어서의 $CO_2$ 교환량의 일변화를 분석했다. 내용적 1.48$\ell$의 배양기에 32개의 식물체를 이식했을 때 식물체당 일일 $CO_2$ 교환량은 19일째에 포화에 달했다. 식물체 생장에 있어서는 자연환기구보다 강제환기구의 생장이 촉진되었고, 강제환기구에서는 $CO_2$ 시용구가 무시용구보다 생장이 촉진되었다. 본 연구의 결과는 고구마 조직배양묘를 강제환기와 $CO_2$ 시용등 배양환경의 개선함으로써 순환과정을 거치지 않고 포장정식이 가능한 배양묘나 삽수의 생산이 가능함을 시사한다고 사료된다.

• Journal of Internet Computing and Services
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• v.6 no.5
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• pp.27-43
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• 2005

EAP provides authentication for each entity based on IEEE Std 802.1x Wireless lAN and RADIUS/DIAMETER protocol, and it uses certificate, dual scheme(e.g., password and token) with the authentication method. The password-based authentication scheme for authenticated key exchange is the most widely-used user authentication method due to various advantages, such as human-memorable simplicity, convenience, mobility, A specific hardware device is also unnecessary, This paper discusses user authentication via public networks and proposes the Split Password-based Authenticated Key Exchange (SPAKE), which is ideal for both authenticating users and exchanging session keys when using a subsequent secure communication over untrusted network, And then we provides EAP authentication framework EAP-SPAKE by using it.

• Proceedings of the Korean Society for Cognitive Science Conference
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• 2000.05a
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• pp.279-284
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• 2000

시각적으로 제시된 영어 단어 재인시에 주로 단어빈도와 단어길이가 영향을 준다고 알려져 있다. 그러나, 단어빈도와 관련된 연구는 체계적으로 이루어져 왔지만 단어길이와 관련된 연구는 체계적으로 이루어지지 않은 편이다. 또한, 단어빈도와 단이길이에 따라 단어가 성 어휘집(mental lexicon)에 어떻게 표상되어 있으며, 상호간에 어떠한 관계가 있는 것인지에 대해서는 아직 구체적으로 알려져 있지 않다. 본 연구의 목적은 첫째, 단어길이와 빈도가 시각적으로 제시된 영어단어 어휘접근에 어떠한 영향을 미치는지 알아보아 단어길이효과가 어휘접근단계에서 영향을 미치는지 알아보고자 하며 둘째, 단어길이와 빈도가 미국인과 한국인의 어휘접근시 어떤 차이를 보이는지 알아보아 한국인과 미국인의 영어단어 정보처리의 차이를 살펴보고자 하는 것이다. 단어 명명과제와 어휘판단과제를 사용한 실험결과 한국인과 미국인에게 모두 단어 길이와 빈도가 어휘접근에 영향을 주었다. 그러나, 한국인의 경우는 상대적으로 어휘판단과제에서 보다는 단어명명과제에서 어려움을 겪는다는 결과를 보여주었다. 이와 같은 결과를 볼 때 한국인이 영어단어 어휘에 접근할 때에도 미국인과 유사한 방식으로 처리를 하는 것으로 보인다. 그러나, 한국인의 경우는 미국인보다 조음과정에 상대적으로 더 어려움을 느끼는 것으로 보이며, 이것은 영어교육시 단순한 어휘암기보다 음운부호를 산출하고 단어를 말하는 능력을 향상시키는 방법을 좀 더 강조해야 한다는 것을 시사한다.

• Annual Conference on Human and Language Technology
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• 2010.10a
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• pp.22-27
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• 2010

최근 국가적 차원에서 영어교육에 대한 많은 투자가 이루어지고 있으나 기존의 주입식, 암기식 영어 교육은 회화 실력 향상에 큰 도움을 주지 못하였다. 컴퓨터를 이용한 영어교육 또한 많은 관심을 얻고 있으나 실제 의사소통을 위한 회화 학습에 대한 고려는 깊지 않으며, 주어진 흐름의 대본을 따라 단순히 읽고 반복하는 수준의 시스템만 존재하고 있다. 이러한 학습형태는 흥미 유발 동기가 약하여 사용자로 하여금 장기간 꾸준히 학습하게 만들지 못한다는 문제가 있다. 이러한 문제점에 대하여 제2언어 습득 이론에 바탕을 둔 자연어 처리 기반 몰입 환경 영어 교육 시스템을 제안한다. 이는 도메인 확장성이 뛰어난 예제 기반 대화 시스템을 3 차원 가상공간과 결합한 시스템으로 자연스러운 대화를 통한 외국어 회화 연습을 하는 과정에서 학습자의 발화 오류를 분석하고 교육적 피드백을 제공한다. 또한 현실과 비슷한 몰입 환경에서 체험형 기술을 통해 자발적인 학습을 유도하고 집중력, 기억력을 획기적으로 높이고자 한다. 본 논문에서는 영어교육 시스템의 이론적 배경, 예제 기반 대화관리, 시스템 구성요소와 동작에 대하여 중점적으로 기술하였다.

• Journal of Elementary Mathematics Education in Korea
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• v.14 no.3
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• pp.885-905
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• 2010

This study questions that mathematical evaluations strive to memorize fragmentary knowledge and have an objective test. To solve these problems on mathematical education We did descriptive test. Through the descriptive test, students think and express their ideas freely using mathematical terms. We want to know if that procedure is correct or not, and, if they understand what was being presented. We studied this because We want to analyze where and what kinds of faults they committed, and be able to correct an error so as to establish a correct mathematical concept. The result from this study can be summarized as the following; First, the mistakes students make when solving the descriptive tests can be divided into six things: error of question understanding, error of concept principle, error of data using, error of solving procedure, error of recording procedure, and solving procedure omissions. Second, students had difficulty with the part of the descriptive test that used logical thinking defined by mathematical terms. Third, errors pattern varied as did students' ability level. For high level students, there were a lot of cases of the solving procedure being correct, but simple calculations were not correct. There were also some mistakes due to some students' lack of concept understanding. For middle level students, they couldn't understand questions well, and they analyzed questions arbitrarily. They also have a tendency to solve questions using a wrong strategy with data that only they can understand. Low level students generally had difficulty understanding questions. Even when they understood questions, they couldn't derive the answers because they have a shortage of related knowledge as well as low enthusiasm on the subject.

• Education of Primary School Mathematics
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• v.14 no.1
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• pp.43-55
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• 2011

The purpose of this study was to investigate the effects of inquiry oriented instruction on the learning of area formulas. For this purpose, current elementary mathematics textbook(2007 revised version) which deal with area formulas was reviewed and then the experimental research on inquiry oriented instruction in area formulas was conducted. The results of this study as follow; First, there was no significant effect of inquiry oriented instruction on the mathematical achievement in area formula problems. Second, there was no significant effect on the memorization of area formulas. Third, there was significant effect on the generalization of area formulas. Forth, there was significant effect on the methods of generalization of area formulas. Fifth, through inquiry activities, the students can learn mathematical ideas and develop creative mathematical ideas. Finally, implications for teaching area formulas through inquiry activity was discussed. We have to introduce new area formula through prior area formulas which had been studied, and make the students inquire the connection between each area formulas.

• The Journal of the Korea Contents Association
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• v.21 no.1
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• pp.311-320
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• 2021

At present, the secondary school teacher employment examination(SSTEE) is the only gateway to become a national and public secondary teacher in Korea, and after the revision from the 2014 academic year, all the questions of the exam have been converted to supply-type test items, requiring more definitive, accurate, and solid answers. Compared to the selection-type test items that measure recognition memory, the supply-type questions, testing recall memory, require constant memorization and retrieval practices to furnish answers; however, there is not enough learning tools available to support the practices. At this juncture, this study invented a mobile app, called ONE PASS, for the SSTEE. By unpacking the functional mechanisms of the brain, the basis of cognitive processing, this ONE PASS app offers a set of tools that feature brain-based learning principles, such as a personalized study planner, motivation measurement scales, mind mapping, brainstorming, and sample questions from previous tests. This study is expected to contribute to the research on the development of learning contents for applications, and at the same time, it hopes to be of some help for candidates in their exam preparation process.