Effects of Light, Temperature, and Water Depth on Growth of a Rare Aquatic Plant, Ranunculus kadzusensis

조인수,Dong Uk Han,Yong Joo Cho,이은주 한국식물학회 2010 Journal of Plant Biology Vol.53 No.1

Ranunculus kadzusensis is an endangered aquatic plant species that commonly reproduces in the rice paddies of Korea and Japan during winter and early spring. Here, we investigated the effects of main aquatic environmental factors—light, temperature, and water depth—on its growth,with the goal of seeking information that will contribute to its in situ conservation. As the amount of shading increased,biomass, maximum shoot length, number of branches,flowers, and fruits, main stem diameter, and maximum leaf length decreased. Although seed germination occurred under a 12-h photoperiod and at either 30/20°C (day/night) or 20/15°C, most plants died at the higher temperature. Survival was 0% for surface-grown plant sets when tested in a wintertime pond experiment. The rate of maximum shoot extension was greatest for plants grown at depths of 50 and 100 cm versus those at 20 cm. Thus, we demonstrated that R. kadzusensis is intolerant of high temperatures and shade,which may explain why its growth is limited to paddies with no shading and where temperatures are low early in the year,before rice cultivation begins.

작동 연료온도가 Bypass type 피에조 인젝터의 분사 특성에 미치는 영향

조인수,이진욱,Cho, Insu,Lee, Jinwook 한국분무공학회 2019 한국액체미립화학회지 Vol.24 No.2

Diesel vehicles suffer from poor starting and running problems at cold temperatures. Diesel vehicles have the characteristic that CO and PM are reduced or similarly discharged when going from low temperature to high temperature. In this study, a bypass type piezo injector for electronic control based common rail injection system was used. Numerical analysis using injector drive analysis model was performed to analyze injector drive and internal fuel flow characteristics according to fuel temperature change. The results show that the rate of density change due to the fuel temperature is proportional, and that the effect of the kinematic viscosity is relatively large between $-20^{\circ}C$ and $0^{\circ}C$. Comparing the results of temperature condition at $0^{\circ}C$ and $20^{\circ}C$, it is considered that the viscosity is more correlated with the needle displacement than the pressure chamber of the delivery chamber.

랫트에서의 Gentamicin신장독성(腎臟毒性)에 관한 연구(硏究)

조인수,김태종,윤화중,Cho, In-soo,Kim, Tae-jong,Yoon, Hwa-joong 대한수의학회 1986 大韓獸醫學會誌 Vol.26 No.1

Sprague-Dawley rats received subcutaneous injections of gentamicin sulfate, 50 and 100mg/kg for 3, 7 and 10 days. The hematological and blood chemical values were determined. Kidneys were examined histologically and ultrastructurally. The results obtained were summarized as follows; 1. The serum values of aspartate transaminase, blood urea nitrogen and creatinine in the rats administered gentamicin, 50 and 100mg/kg/day were significantly increased than those in the control. 2. The ratio of kidney weight to body weight was significantly increased in the rats injected gentamicin, 100mg/kg for 10 days than those in the control. 3. The brush borders of proximal convoluted tubules in the kindneys received gentamicin, 50 and 100mg/kg/day were decreased or absent in periodic acid-Schiff staining. 4. The necrosis of proximal convoluted tubules was shown in the rats given gentamicin, 50 and 100mg/kg for 7 and 10 days. 5. The regeneration of the proximal tubular epithelia was observed in the rats treated gentamicin, 100mg/kg for 10 days. 6. The number and size of lysosomes were increased in the proximal convoluted tubules of the rats injected gentamicin, 50mg/kg for 7 days, many of which contained myeloid bodies.

단일 전력량계 활용 다수고객 전력사용량 계량 기술 개발

조인수,Cho, Insoo 한국전력공사 2021 KEPCO Journal on electric power and energy Vol.7 No.2

기존 3 상 전력량계(G-type) 1 대로 단상 3 호 고객 계량이 가능한 소프트웨어 기술 구현 【BIXPO 2020 발명특허대전 대상 수상】

태조의 초상화 조선을 건국한 왕의 위엄과 기상

조인수(趙仁秀 Cho In-soo) The Korea Foundation 2006 Koreana (Korean) Vol.20 No.1

압축착화기관용 가변밸브 듀레이션(VVD)시스템의 제어전략에 따른 유동 및 연소성능 해석

조인수 ( Insu Cho ),김우택 ( Wootaek Kim ),이진욱 ( Jinwook Lee ) 한국분무공학회지 2020 한국액체미립화학회지 Vol.25 No.2

Recently, global warming and environmental pollution are becoming more important, and fuel economy is becoming important. Each automobile company is actively developing various new technologies to increase fuel efficiency. CVVD(Continuously Variable Valve Duration) system means a device that continuously changes the rotational speed of the camshaft to change the valve duration according to the state of the engine. In this paper, VVT(Variable Valve Timing) and CVVD were applied to a single-cylinder diesel engine, and the characteristics of intake and exhaust flow rate and in-cylinder pressure characteristics were analyzed by numerical analysis. In order to analyze the effect of CVVD on the actual engine operation, the study was performed by setting the valve control and injection pressure as variables in two sections of the engine operating region. As a result, In the case of applying CVVD, the positive overlap with the exhaust valve is maintained, thus it is possible to secure the flow smoothness of air and increase the volumetric efficiency by improving the flow rate. The section 2 condition showed the highest peak pressure, but the pressure rise rate was similar to that of the VVT 20 and CVCD 20 conditions up to 40 bar due to the occurrence of ignition delay.

특수교사의 자기결정기술 교수 증진을 위한 전략과 실행과제 탐색

조인수 ( In Soo Cho ),정성민 ( Sung Min Jung ) 한국특수아동학회 2013 특수아동교육연구 Vol.15 No.2

본 연구는 문헌분석을 통하여 자기결정에 대한 특수교사의 중요도 인식 및 교수 실행수준과 자기결정기술 교수 증진을 위한 구체적인 실행과제와 전략들을 탐색하였다. 그 결과 특수교사는 대체적으로 장애학생에게 자기결정이 매우 중요하다고 인식하고 있으나 교육 현장에서 자기결정기술 교수 실행수준은 낮은 것으로 나타났다. 자기결정기술 교수를 위한 구체적인 전략으로 모델링, 협동학습 집단 구성,코칭, 교수의 팀 접근,동기화,자신감,창의성 등을 증진시키는 강화기술과 내적 요인을 고무시키는 강화기술과 관련된 행동전략 등이 있고,특수교사가 자기결정기술 교수를 증진시키기 위해 취해야 할 몇 가지 구체적인 실행과제들을 제시하였다.본 연구에서 제시된 자기결정기술 교수 증진을 위한 실행과제들은 현장 교사들의 지도지침이 될 수 있을 것이다. The purpose of this study was to survey perceptions of special education teachers for importance of self-determination, and to explore ways and strategies to improve their self-determination skill instruction. There has been a number of studies over the years that prove how self-determination is important for improving the quality of lives of individuals with disabilities. If self-determination skills can help students with disabilities have successful lives in their communities, it is very important for teachers to teach this to their students. Teachers are meaningful role models for students, and affect the self-determination of students through their interactions with them. When students become the main agents that actively participate in a curriculum and understand the goal, importance, and meaning of study, their levels of academic achievement will rise. Likewise, when teachers acquire their own self-determination skills, and then design instruction and implement it, they can be successful educators that enable students with disabilities to gain self-determination skills and independent lives. Therefore, the researcher expects that teachers faciliate students with disabilities self-determination skills to acquire more effectively and become the good role models by achieving and improving their own self-determination skills.

정신지체학교 재량활동 교육과정운영에 대한 교사의 요구

조인수 ( In-soo Cho ),김은자 ( Eun-ja Kim ) 한국특수교육문제연구소 2005 특수교육저널 : 이론과 실천 Vol.6 No.1

이 연구의 목적은 제7차 특수학교 교육과정에서 추구하는 재량활동의 취지에 맞게 재량활동 교육과정이 합리적으로 편성.운영되기 위하여 재량활동에 대한 교사들의 요구가 무엇인지를 밝히고자 했다. 연구대상은 각 시도에 소재한 정신지체 특수학교 교사 250명을 선정했으며, 설문지 배부 후 회수된 설문지 159부를 통계 처리한 결과는 다음과 같다. 첫째, 재량활동 교육과정 편성.운영에 대한 교사들의 요구는 재량활동 편성.운영 시 학생의 요구와 능력.특성이 고려되어야 하고, 현행 국가수준에서 제시한 시간보다 시수 증배가 필요함을 보여주었다. 또한 보충.심화학습으로 현장학습, 체험학습 등의 사회적응능력을향상시킬 수 있는 내용을 원하는 것으로 나타났다. 그리고 재량활동을 창의적 재량활동과 교과재량활동으로 구분 운영하는 것이 바람직하다고 응답하여 교과에 대한 심화보충학습과 범교과 학습이 균형을 이뤄야 한다는 의견을 보이고 있다. 둘째, 재량활동 평가방법과 활성화되고 고려되어야 할 조건으로 평가방법에선 지필평가,포트폴리오를 지적했다. 활성화조건으로 교사의 연수, 행.재정적 지원대책 마련, 학급당 인원축소, 재량활동 계획 및 내용에 대한 교사들의 자율적 결정권 확보, 학교장의 관심과 지원,재량활동을 담당할 강사확보, 도우미 및 자원봉사활동 시스템 확보 등을 중요하게 생각하고 있었다. The purpose of this study is to find out direction of present curriculum in the field of schools by grasping the teachers`` demand for discretionary activities curriculum management which is being pursued by the seventh curriculum for the special schools. The conclusions of this study are as follows; First, in the teachers`` demand for the management of discretionary activities, as for the factors should be considered in the curriculum of discretionary activities, they were importantly regarding demand of students, ability, and character of students, and as for the problems to be repaired when manage the discretionary activities curriculum, they answered as preparing programs for the discretionary activities. According to the question about the relation with national level of time of discretionary activities and practical time of discretionary activities, the most frequent answer was it should be more than the time suggested by national level, so it shows we need to increase the time of discretionary activities. But, as for the teachers`` opinion for the running method of discretionary activities, most of them preferred to run according to the time table by making time table every week. The frequency of this opinion was higher than the opinion that it should be done mainly for field experience study by adjusting to every week + every second week plan, so it shows that the understanding for the meaning of discretionary activities is different even between the teachers. And, as for the contents which should be included in the discretionary activities, teachers point out the contents to increase their study ability by compensating and deepening study of basic subjects as important contents. They thought that organizing as activities group is good for effective study group organizing method when they run discretionary activities, and according to their opinion, effective teaching method for the discretionary activities is small group, individual teaching, class group, and large group activities, in turn. Most major of the teachers replied that it was desirable to run discretionary activities in the special schools for the mentally retarded to run dividing into subject discretionary activities and creative discretionary activities, thus they suggested their opinions that the whole subject study and the deepening compensating study for the subject should be balanced. Second, as for evaluation methods and facilitating conditions for the discretionary activities, the teachers point out that writing assessment and portfolio are effective for evaluating method for the discretionary activities, and that the curriculum organizing host of the discretionary activities should reflect mostly the opinion of the school curriculum management committee and teachers in charge of the discretionary activities. Teachers were eagerly feeling that the discretionary activities training was in need for the teachers in order to develop and activate the discretionary activities.

대인,사회적기능 중심의 전환교육활동에 따른 정신지체학생의 사회적 능력

조인수 ( In Soo Cho ),전보성 ( Bo Sung Jeon ) 한국특수교육문제연구소 2007 특수교육저널 : 이론과 실천 Vol.8 No.2

본 연구는 대인ㆍ사회적 기능 중심의 전환프로그램이 정신지체학생의 사회적 능력, 즉, 교사가 선호하는 사회적 행동(teacher preferred social behavior), 아동이 선호하는 사회적 행동(peer preferred social behavior), 학교적응 행동에 미치는 효과를 알아보고자 하는데 그 목적이 있다. 이 연구의 결과를 근거로 얻어진 결론은 다음과 같다. 첫째, 대인ㆍ사회적기능 중심의 전환교육이 정신지체아와 정상아 집단 다같이 교사가 선호하는 사회적 행동을 향상시키는데 효과적이다. 둘째, 대인ㆍ사회적기능 중심의 전환교육이 정신지체아와 정상아 집단 다같이 또래가 선호하는 사회적 행동을 향상시키는데 효과적이다. 셋째, 대인ㆍ사회적기능 중심의 전환교육이 정신지체아와 정상아 집단 다같이 학교적응 행동을 향상시키는데 효과적이다. 이와같은 결론은 대인ㆍ사회적기능 중심의 전환교육이 MR집단과 NOR집단의 사회적 능력에 효과 적임을 증명하고 있으며, 학교 현장에서 정신지체 학생에게 다양한 대인ㆍ사회적기능 중심의 전환교육 프로그램을 제공해 줄 필요가 있고, 학생 개개인의 수준에 맞는 개별화 교육 계획을 수립할 때, 대인ㆍ사회적기능 중심의 전환교육 프로그램을 개별화 교육 계획의 장기목표와 단기목표로 구성한다면, 교육의 효과를 더욱 증진시킬 수 있을 것으로 생각된다. The study is to find out the effects of interpersonal social function-centered transition education program to promote social competence of students with mental retardation which contain the teacher perferred social behavior, peer perferred social behavior, and school adaption behavior. The conclusions of the study drawn from results are as follows; First, The interpersonal social function-centered transition education program have an effects on teacher perferred social behavior in each group, students with mental retardation and general students. Second, The interpersonal social function-centered transition education program have an effects on peer perferred social behavior in each group, students with mental retardation and general students. Third, The interpersonal social function-centered transition education program have an effects on school adaption behavior in each group, students with mental retardation and general students. The findings of this study shown that interpersonal social function-centered transition education program testified to have effects of social competence. In field, it should be needed for students with mental retardation to serve interpersonal social function-centered transition education program. And when drawing up IEP fitting to present leveling of individual student, in case of making composition to long term object and short term object with together interpersonal social function-centered transition education program, think that effects of education will be elevated more.

초등학교 특수학급 교육과정 운영실태 분석

조인수 ( In Soo Cho ),박은희 ( Eun Hui Park ) 한국정신지체아교육학회 2007 지적장애연구 Vol.9 No.2