천연물질 함유 과수용 적화제의 처리시기에 따른 적화효과 및 화분성장에 미치는 영향

손태권(Tae Kwon Son),김정은(Jung Eun Kim),김태형(Tae Hyoung Kim),이충희(Chung Hee Lee),이경렬(Kyeong Yeoll Lee) 한국원예학회 2019 한국원예학회 학술발표요지 Vol.2019 No.10

An Analysis of Research Trends of Domestic Mathematics Struggling Learners Using Topic Modeling

손태권(Tae-Kwon Son)안도연(Do-Yeon Ahn),유성윤(Sung-Yoon Yoo),이광호(Kwang-Ho Lee) 한국교원대학교 뇌기반교육연구소 2021 Brain, Digital, & Learning Vol.11 No.1

Mathematics struggling learners are an important agenda to be solved in mathematics education and the country. Our research purpose is that understand the research trends on mathematics struggling learners have been categorized and flowed. In consideration of this purpose, we examined 782 domestic papers published from 1980 to 2019 using topic modeling to identify the research trend of mathematics struggling learners. The findings indicated that there were different core keywords by period. Additionally, six topics were derived such as ‘Struggling Factors’, ‘Programs for Struggling Learner’, ‘Learning Fractions’, ‘Errors of Struggling Learner’, ‘Instruction Methods’, ‘Supplementary Materials & System’. Additionally, each topic showed a different weight change according to the time series change and hot topics appeared as a teaching method. Based on these findings, we suggest implications for educators and researchers. First, research for struggling learners in other areas of mathematics should be spread. Second, research on the diagnosis of underachievers in mathematics learning needs to be spread. Third, research on social and cultural variables that cause struggling learners in mathematics learning needs to be spread.

친환경 식물추출물을 이용한 적화제 개발

손태권(Tae Kwon Son),반승현(Seung Hyun Ban),윤원호(Won Ho Yun),이경열(Kyeong-Yeoll Lee),강인규(In-Kyu Kang),조재두(Jae Doo Jo),최철(Cheol Choi) 한국원예학회 2013 한국원예학회 학술발표요지 Vol.2013 No.5

작업기억 검사도구 개발에 관한 소고

손태권(Tae-Kwon Son),이광호(Kwang-Ho Lee),성창근(Chang-Keun Sung) 한국교원대학교 뇌기반교육연구소 2019 Brain, Digital, & Learning Vol.9 No.3

The purpose of this study is to suggest the direction of the development of the working memory assessment tool based on Baddeley(2018)’s working memory multicomponent model. To do this, we first examined the concept of working memory and neurological basis through literature review, and selected measurement factors for development of working memory assessment tool. Based on the selected measurement factors, we analyzed the developed tasks of working memory tools and revealed its characteristics and limitations. We suggest the points to be considered by the developer and the assessment tool user when developing or using the work memory assessment tool and suggested suitable tasks for each work memory measurement factors. This study is significant in that it establishes the neurological basis of working memory and suggests the points to be considered by the developers and the authors, thereby providing a basis for the development of the working memory assessment tool.

사과에 있어서 자가불화합 제어제 처리 효과

손태권,정일경,Son, Tae-Kwon,Chung, Il-Kyung 한국작물학회 2006 한국작물학회지 Vol.51 No.suppl1

사과 재배시 대두되고 있는 수정 불량 및 안정된 수정을 통한 품질 향상을 위한 방안을 모색하고자 자가불화합성 제어제(상품명 : 애플플러스)를 이용한 SSR 유전 분석을 통한 자가수정 향상 정도 및 촉진 효과, 품질 특성에 미치는 영향을 검토하였다. 1. 후지 품종에 있어서 중심화 결실율은 자연방임시 무처리의 경우 2004년 0.5%, 2005년 3.0%인데 비하여 자가불화합성 제어제 처리의 경우 2004년 17.2%, 2005년 44.4%로 높게 나타났다. 2. 망을 씌워 자가불화합성 제어제를 처리한 실험구에서도 무처리구에서는 2004년 0.4%, 2005년 0.7%, 처리구에서는 2004년 3.3%, 2005년 5.2%의 결실율을 보여 처리구가 $7.4{\sim}8.3$배정도 결실율이 높게 나타났다. 3. 망을 씌워 자가불화합성 제어제 처리한 실험구와 무처리구를 비교하면 L/D, 경도에서는 유의성이 인정되지 않았으며, 종자수에서는 무처리구 0.9개, IS-1 처리구 1.2개, IS-2 처리구 1.2개, IS-3 처리구 1.5개, IS-4 처리구 0.7개로 나타나 약제 종류에 따라 효과가 다르게 나타났다. 4. SSR 유전자 분석에 의한 후지 품종 종자의 자가수분 정도는 무처리구에서 0%, IS-1 처리구 100%, IS-2 처리구 73%, IS-3 처리구 88%, IS-4 처리구 62%로 나타나 IS-1의 약제가 가장 높게 나타났다. This study investigated the effect of self-incompatibility control substance 'Apple plus' in improving self-fertilization and quality on apple. Results showed that the rate of fruit setting of disc florets of Fuji apple in the open field increased from 17.2% in 2004 to 44.4% in 2005 for the treated plots and from 0.5% in 2004 to 3.0% in 2005 for the control. In the case of using net covering, the rate of fruit setting increased from 3.3% in 2004 to 5.2% in 2005 for the treated plots and from 0.4% in 2004 to 0.1% in 2005 for the control. For the quality of apple fruits, results showed that there was no significant difference on the fruit L/D and firmness for both control and treated plots. However, the number of seeds was affected by the different substances which produced the following average number of seeds: control, 0.9; IS-1, 1.2; IS-2, 1.2; IS-3, 1.5 and IS-4, 0.7. The SSR genetic analysis showed that the rate of self-fertilization was highest for IS-1 (100%), followed by IS-2 (73%), IS-3 (68%), IS-4 (62%) and control (0%).

전지소재 공정에서 발생되는 폐액을 활용한 황산암모늄 정제기술 개발

홍세철 ( Se Chul Hong ),손선영 ( Sun Young Son ),이재훈 ( Jae Hoon Lee ),이준윤 ( Jun Yun Lee ),김인 ( In Kim ),최형욱 ( Hyoung Wook Choi ),정인경 ( In Kyeong Jeong ),서태권 ( Tae Kwon Seo ) 한국폐기물자원순환학회(구 한국폐기물학회) 2017 한국폐기물자원순환학회 춘계학술발표논문집 Vol.2017 No.-

최근 환경오염을 방지하고 자원소비를 절감할 수 있는 ‘자원순환사회’로의 전환을 서둘러야 한다는 공감대가 빠르게 확산되고 있으며, ‘자원순환사회’란 폐기물의 소각, 매립을 최소화하고 재활용을 극대화함으로써 환경오염을 방지하고 자원과 에너지를 절약이 큰 이슈화 되고 있는 실정이다. 리튬 이차전지 생산과정 중 전구체 제조공침 기술에서 암모니아수를 사용하게 되며, 공정 중 발생하는 암모니수에 질소제거를 위한 스트리핑법을 이용하여 최종 황산암모늄 수용액이 부산물로 발생 하고 있다. 황산암모늄 폐수 처리시 T-N이 함유되어 고도처리를 해야 하므로 고가의 폐수처리 발생비용 발생 되고 있는 실정이다. 현재 구미산업공단 및 경북 산업단지 내의 매월 약 150톤의 폐황산암모늄이 발생되어 지고 있으며, 주로 고가의 폐수비용을 지불하며 고도처리 방식으로 처리되고 있다. 따라서. 황산암모늄 폐수 활용하여 폐수비용을 경감시키고 부가가치를 창출 할 수 있는 기술에 대하여 관심이 높아지고 있다. 구미산업공단 및 경북 산업단지 내의 매월 약 150톤의 폐황산암모늄이 발생되어 지고 있으며, 주로 고가의 폐수비용을 지불하며 고도처리 방식으로 처리되고 있어 환경오염 및 비용이 문제가 점차 확대되고 있는 실정이다. 따라서 본 연구에서는 전지소재 공정에서 발생되는 폐수를 이용하여 황산암모늄 정제기술 및 최적 결정화 방법을 개발하였다. 이를 활용하여 폐수 발생량을 줄일 수 있으며, 처리비용을 절감시키는 효과를 통하여 자원 순환화 할 수 있을 것으로 사료된다.

비비례 모델 적용을 통한 곱셈적 사고와 나눗셈 학업성취도 향상 분석

좌승협(Seung-Hyub Jwa),손태권(Tae-Kwon Son),송다솜(Da-Som Song),이광호(Kwang-Ho Lee) 한국교원대학교 뇌기반교육연구소 2020 Brain, Digital, & Learning Vol.10 No.4

The proportional model and the non-proportional model are suggested in the mathematics curriculum as one of the tools to help mathematical understanding, but in Korea, the arithmetic algorithm is only introduced through the proportional model. This study analyzed the degree of multiplication thinking and division academic achievement of 3rd grade students through the application of proportional and non-proportional models. As a result of the study, the experimental group that applied both the proportional model and the non-proportional model significantly improved the multiplicative thinking level and division academic achievement compared to the comparative group. These results indicate that division learning using the proportional model and the proportional model together is more effective. Through these results, we suggested some conclusions and implications for improving division learning and teaching.

천연물 발효공정을 이용한 바이오비료의 적화 및 생력절감효과

노지흔(Jiheun Noh),최철(Cheol Choi),김정은(Jeong Eun Kim),김태형(Tae Hyung Kim),이충희(Chung Hee Lee),손태권(Tae Kwon Son) 한국원예학회 2018 한국원예학회 학술발표요지 Vol.2018 No.10

금융산업 지원 IT자산관리시스템 개발

정석찬(Seok-Chan Jeong),최규록(Kyu-Lock Choi),손태권(Tae-Kwon Son) 한국인터넷전자상거래학회 2016 인터넷전자상거래연구 Vol.16 No.6

IT Convergence has been the most actively applied field in the financial industry with the purpose of improving the customer satisfaction, financial competitiveness, and electronic banking services, and etc. However, the financial industry is diversely distributed in not only the diversity of customer channel, but also the physical channels such as financial branches and so on. Also, it utilizes diverse IT assets in financial branches, which implies that the information environment of financial industry is a distributed surroundings which are distributed physically. Therefore, it is required to have a systematic management of financial IT assets in the perspective of information management. In this study, we designed and developed the architecture and functions of financial IT asset management system that utilizes a distributed information environment. The characteristics of the financial IT asset management system developed in this study are as followings: (1) Applying the new financial IT asset classification based on the Government EA model of Korea, (2) Supporting the lifecycle management of the financial IT assets in planning, acquisition, operation, disposal, and history management of IT assets, (3) Providing consistency of the status of IT assets by automatic monitoring according to the specified monitoring points.

목초액을 이용한 한국잔디 Large Patch병 방제효과

전민구(Min-Goo Geon),김인섭(In-Seob Kim),이상철(Sang-Chul Lee),손태권(Tae-Kwon Son),심규열(Gyu-Yul Shim),김정남(Jeong-Nam Kim) 한국잔디학회 2006 한국잔디학회 정기총회 및 학술발표회 Vol.19 No.-

살균제와 목초액을 혼용하여 우리나라 골프장의 한국잔디에 가장 문제가 되는 라지패취병에 대한 방제효과를 검정하였다. 목초액 500, 1000배액 단독처리 시 라지패취병이 발병하는 것으로 보아 목초액 단독 처리는 라지패취 발병을 억제시키지 않았다. 살균제와 목초액 혼용처리 시에 있어서 잔디의 라지패취병은 목초액을 혼용함으로써 pencycuron과 tebuconazol에서 좋은 효과가 나타났으며, 라지패취병 방제에서 pencycuron과 tebuconazol과 목초액을 혼용 하였을 때 농약을 50% 감량하는 효과가 있는 것으로 나타났다. 목초액 혼용 농도는 500배액이나 1000배액에서 비슷하게 나타났다. 엽폭, 엽장, 건물중 모두에서 목초액 500, 1000배액 회석처리구의 잔디가 목초액 무처리구에 비해 증가하는 효과가 있었다. 따라서 잔디에 발생하는 라지패취병 방제시 화학약제와 목초액을 혼용하여 살포하면 농약사용량을 50% 감량하여도 기준시용 처리구와 효과가 비슷하게 나타나 목초액의 이용가능성이 확인되었다. This study was carried out to investigate control efficacy of fungicides mixed with pyroligneous acid on Large patch caused by Rhizoctonia solani AG2-2. R. solani AG2-2 was not inhibited by concentration of 500 times and 1,000 times diluents of pyroligneous acid. It is thought that R. solani AG2-2 was not inhibited by pyroligneous acid alone. Pencycuron and tebuconazol mixed with pyroligneous acid had a good effect in prevention of R. solani AG2-2 in zoysiagrass. Concurrently, it was observed that those were reduced 50% of usage of fungicides. 500 times and 1,000 times diluents of pyroligneous acid treated group had a significantly effect compared to control turf in the leaf length, leaf width and dry weight. In conclusion, usage of fungicides could be reduced about 50% by a fungicides mixed with pyroligneous acid for protection of R. solani AG2-2. Therefore, It is thought that fungicides mixed with pyroligneous acids can be reduced an economic fungicides could be reduced about 50% by a fungicides mixed with pyroligneous acid for protection of R. solani AG2-2. Therefore, It is thought that fungicides mixed with pyroligneous acids can be reduced an economic load and also an environmental pollution such as a tolerance to pathogenic bacteria and a destruction of an ecological system of soil microbes according to use fungicides.