서평 : 생물고분자 [ 다당 ] 의 합성 및 구조 / 성질 ( 이신영, 생물산업, 2002 )

이신영 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 2002 생물산업 Vol.15 No.2

시각장애학교 시각장애교사의 여가활동 인식 및 실태 연구

이신영,이해균 한국시각장애교육&재활학회 2015 시각장애연구 Vol.31 No.2

The purpose of the study is to provide ground information to boost leisure activities available to the teachers with visual impairments. Teachers with visual impairments working in the schools for the visual impairments were asked to fill up a questionnaire concerning their current engagement in leisure activities. Followings are the summarized results from the survey. First, male teachers with visual impairments mainly answered that they do leisure activities either “to relieve physical and psychological tensions from work” or “to gain a variety of unusual experiences,” while the biggest number of female teachers said they do leisure activities “to relieve physical and psychological tensions from work.” On the other hand, when they were asked about the main causes that discourage them from challenge leisure activities, many teachers in their 20s said they can’t really afford any leisure activity, while those in the age of 30s or 40s, or those with total blindness or the unmarried all identically focused on saying “it’s not easy to find places or facilities accessible to those with visual impairments.” At the same time, many teachers over 50 answered they are “too busy doing work to try any leisure activity,” and those with low vision mainly said they “can’t spare time for leisure activity after doing house chores,” and married teachers with visual impairments also chose “too busy doing work to try any leisure activity.” Second, when they were asked about what they mostly do in spare time at school, married teachers usually said they study over teaching material, while unmarried teachers mainly said they do something on the computer. when they were asked about usual expenditures for spare time activities, both male and female married teachers samely checked “eating out with others”, and unmarried teachers picked “drinking alcoholic beverages with others.” There are also suggestions for further studies based on the research results. 이 연구는 시각장애교사들의 여가활동을 활성화하기 위한 기초자료를 제공하기 위해 전국 시각장애학교에 재직 중인 시각장애교사를 대상으로 여가활동 인식 및 실태를 설문조사하였다. 이에 대한 연구결과를 토대로 요약하면 다음과 같다. 첫째, 여가활용에 대한 인식은 남자교사가 ‘일에서 오는 심신의 피로를 풀기 위한 시간으로’와 ‘폭넓은 경험을 얻기 위한 시간으로’, 여자교사는 ‘일에서 오는 심신의 피로를 풀기 위한 시간으로’가 가장 높게 나타났다. 여가활용의 어려운 점으로는 20대교사는 ‘여가활동을 할 만한 경제적 여유가 없다’가, 30대와 40대교사, 맹교사와 미혼교사는 ‘시설 및 장소가 부족하다’가, 50대 이상교사는 ‘업무로 인해 여가시간을 내기 어렵다’가 가장 높았으며, 저시력교사는 ‘가사로 인해 여가시간을 내기 어렵다’가, 기혼교사는 ‘업무로 인해 여가시간을 내기 어렵다’가 가장 높게 나타났다. 둘째, 학교에서의 여가활용의 실태는 기혼교사가 ‘교재연구를 한다’, 미혼교사가 ‘컴퓨터를 한다’가 가장 높았고, 시설 확충에는 선천성과 후천성 모두 ‘휴게실’이 가장 높게 나타났다. 여가활동 비용은 남녀교사 모두와 기혼교사는 ‘외식비’가, 미혼교사는 ‘음주비’가 가장 높게 나타났다. 이러한 연구결과를 바탕으로 후속연구에 대해 제언하였다.

도입 초당옥수수 교잡종의 지역 적응성 및 농업 형질의 유전력 평가

이신영,강종원,왕승현,박태춘,정종욱,소윤섭,Lee, Shin-Young,Kang, Jong-won,Wang, Seung-hyun,Park, Tai-choon,Chung, Jong-Wook,So, Yoon-Sup 한국작물학회 2021 한국작물학회지 Vol.66 No.2

본 실험은 지역 적응성 시험을 통한 도입 초당옥수수 자원의 농업 형질을 조사하고 혼합 선형 모형을 이용하여 조사 형질의 분산 구성요소를 추정하고 이를 통해 형질들의 유전력을 추정함으로써 신규 자원이 가진 육종재료로서의 가치를 평가하고, 이를 이용한 초당 옥수수 품종 육종 과정에서 선택할 수 있는 육종 및 선발 방법을 도모하고자 하였다. 1. 출웅기와 출사기를 제외한 모든 형질의 유전력은 낮게 추정되었는데 이러한 형질은 분산구성요소 중 유전분산이 낮게 추정되었다. 착수고율의 경우 품종과 지역 간의 유의한 상호작용효과로 인해 낮은 유전분산이 추정된 것으로 보인다. 2. 측정 형질의 낮은 유전력 추정치는 시험 재료가 모두 최신 상업용 품종이기 때문일 것으로 사료된다. 따라서 육종재료로서의 낮은 잠재력을 의미하는 것은 아니다. 3. 낮은 유전분산과 유의미한 상호작용 효과를 극복하고 선발 효율을 극대화 하기 위하여 교잡종의 직접적인 자가 수정을 통한 자식 계통 개발을 진행하기 보다 intermating을 통한 유전자 재조합을 먼저 유기하는 것이 바람직 할 것으로 보인다. This study evaluated newly introduced, commercial super sweet corn hybrids (Zea mays L.) for their potential as breeding materials. Agronomic traits were measured and variance components were obtained using a linear mixed model to estimate the heritability. The trials were carried out in 2018 at two locations (Haenam and Oksan in South Korea). All traits had low heritability, except for mid tasseling and silking days. These traits with low heritability mostly had low genetic variance component estimate. In case of ear height ratio, significant genotype by location appeared to be responsible for low genetic variance, which in turn led to low heritability. Low heritability estimates from the trials with commercial hybrids were perhaps because those hybrids were highly improved for commercial success. Hence, this does not necessarily point to them having poor potential as breeding materials. To overcome low heritability, significant genotype by environment interaction, and achieve high selection efficiency, intermating among hybrids is recommended to create new recombinants before inbred line development.

컴퓨터 시뮬레이션에 의한 레토르트미반의 최적고온 살균조건

이신영,천병익,이상규,Lee, Shin-Young,Chun, Byong-Ik,Lee, Sang-Kyu 한국식품과학회 1985 한국식품과학회지 Vol.17 No.3

두께가 서로 다른(5${\sim}$24mm) 레토르트 미반에 대하여 여러온도(110-$150^{\circ}C$)에서 최적품질보유가 가능한 고온살균조건을 컴퓨터 simulation에 의하여 구하였다. 최적조건은 12D의 미생물학적 안전성을 유지할 때 최소의 c-값과 최대의 thiamine retention을 갖는 건에 의하여 선정하였다. 계산결과는 고온일수록 시료두께의 영향이 매우 중요함을 보이면서 미반고온살균의 우수한 음질보유는 두께 10mm이하에서 나타난다. Optimal quality retentions of cooked rice packed in retort pouch were simulated by computer using various thicknesses of retort pouch (5 to 24mm) and process temperatures (110 to $150^{\circ}C$). Optimal conditions were chosen by the minimal c-values and maximal thiamine retention when good bacteriological lethality (12D processing) was obtained. From the results of calculations, it were shown that the better quality retentions of high tharmal processing can be obtained below pouch thickness of l0mm and that the thickness of pouch is critical factor at higher processing temperature.

利刀(신죽도)가 탄생되기까지

이신영 대한검도학회 1998 대학검도보 Vol.- No.11

관성 충돌 방식의 액적 분리장치의 수분제거효율 평가

이신영,홍원석,신완호,김규진,송동근 한국입자에어로졸학회 2013 Particle and Aerosol Research Vol.9 No.1

Inertial impaction type mist eliminators are the most effective instruments to separate mist from the gas. In this work, the effect of the horizontal chevron type mist eliminators is characterized experimentally. Droplet size distribution and evaluation of removal efficiency of the chevron type mist eliminators at different gas flows were investigated using an aerosol particle size analyzer and a portable aerosol spectrometer, respectively. The experimental investigations showed that the mist removal efficiency in these instruments is dependent in the droplet size, and the pressure drop is nil.

노인의 우울과 자살예방을 위한 사정과 개입에 관한 토론

이신영 한국정신건강사회복지학회 2005 한국정신건강사회복지학회 학술발표논문집 Vol.2005 No.11

하지 동맥 폐쇄의 치료에 관한 임상적 고찰

이신영 인제대학교 1996 仁濟醫學 Vol.17 No.1

하지 허혈성 혈행장애가 있는 16례를 대상으로 증상과 징후, 병변 부위, 치료 방법을 분석하였다. 주된 증상은 휴식통, 냉기, 창백, 야윔, 궤양 및 괴저, 파행이었다. 동맥 조영술은 14례에서 시행하여 24개의 혈관에 병변이 발견되었으나 이중 10개(41.6%)의 혈관은 협착이나 폐쇄는 있으나 이로 인한 증상은 없어 치료 대상이 아니었다. 치료는 14개(58.4%)의 혈관에서 폐쇄가 발견되어 우회술, 혈관 내막절제술과 첩제 이식술, 혈전용해술, 색전제거술, 풍선도관을 이용한 혈관성형 확장술을 12례에서 시행하였다. 2례는 내원시 괴사가 심하여 무릎 하방에서 절단하였고, 2례는 동맥조영술 사진상 수술이 불가능하여 대증적 치료를 하였다. 하지 허혈성 혈행 장애시 보다 적극적인 치료는 증상의 완화와 하지 절단을 최소화할 수 있을 것이다. Objective : Limb-threatening ischemia due to multilevel arterial occlusive disese may require invasive or surgical treatment to achieve limb salvage. Methods and Materials : From May 1992 to August 1975, 24 arterial occlusions were experienced in 16 patients of the ischemia of the lower extremities. We evaluated clinical symptoms and signs, associated diseases, invasive and surgical procedures for limb salvage. Results : The age ranged from 47 s to 81 years(mean : 66.8 years). 15(93.75%) were men and 1(6.25%) was woman. The symptoms and signs of the patients were coldness(65.2%), thinness(56.2%), rest pain(56.2%), gangrene or ulcer(56.2%) , claudication(43.7%), paleness(37.5%) cyanosis(31.2%), numbness(25%), and necrosis(12.5%). The associated diseases were atherosclerosis(68.7%), hypertension(62.5%), cerebrovascular disease(25%), valvular heart disease(12.5%), atrial fibrillation(18.2%), diabetes mellitus(6.2%), coronary artery disease(6.2%) and pulmonary tuberculosis(6.2%). The levels of the arterial stenosis or occlusion(24 vessels) were superficial femoral arteries(33.3%), popliteal arteries(29.1%), external iliac arteries(20.8%), common femoral arteries(12.5%) and deep femoral arteries(4.1%). The procedures (14 vessels) for limb salvage in 12 patients included femorofemoral crossover bypass, 3(17.6%) ; endarterectomy and patch graft, 2(11.7%) ; femoropopliteal bypass, 1(5.8%) ; thromboembolectomy, 1(5.8%) ; angioplasty with balloon, 1(5.8%) ; and thrombolysis with urokinase, 6(33.3%) A below-knee amputation was preformed in 12.5% of 16 patients with severe necrosis of extremity. Conclusion : Aggressive approach toward limb-threatening ischemia may require invasive and surgical procedures such as thrombolysis, angioplasty and anatomic or extraanatomic bypass according to the condition of patients.

고등학생의 유전 문제 해결 과정에서 드러난 표상 능력의 차이

이신영 한국생물교육학회 2019 생물교육 Vol.47 No.2

This study aimed to explore differencesbetween successful and unsuccessful problem-solvers’ representationalcompetence revealed by the solving of twogenetic problems in different presentational modes. Fourhigh school students participated in solving two geneticproblems that contained diverse genetic concepts and requiredcomplex reasoning. Representational competence wasanalyzed with the form of representation, the level ofabstraction and the accuracy of domain knowledge in representation. The student who solved the problem successfully,presented via the verbal mode, selected the appropriateform of representation such as Punnett square and diagramof chromosomes. Her representation showed a high level ofabstraction and accurate domain knowledge. The studentswho solved the problem presented via verbal, graphical, andtable modes constructed the pedigree commonly. Thesuccessful students, however, transformed the original representationinto pedigree so perfectly that it accuratelyreflected the domain knowledge of the original representation. The students used their representation forunderstanding information of the problems, thereby reasoningthe right answers, visualizing and monitoring theproblem-solving process. These findings may provide educationalinsights for educators who seek to understand therelationship between genetic problem-solving processes andrepresentation. This study aimed to explore differences between successful and unsuccessful problem-solvers’ representational competence revealed by the solving of two genetic problems in different presentational modes. Four high school students participated in solving two genetic problems that contained diverse genetic concepts and required complex reasoning. Representational competence was analyzed with the form of representation, the level of abstraction and the accuracy of domain knowledge in representation. The student who solved the problem successfully, presented via the verbal mode, selected the appropriate form of representation such as Punnett square and diagram of chromosomes. Her representation showed a high level of abstraction and accurate domain knowledge. The students who solved the problem presented via verbal, graphical, and table modes constructed the pedigree commonly. The successful students, however, transformed the original representation into pedigree so perfectly that it accurately reflected the domain knowledge of the original representation. The students used their representation for understanding information of the problems, thereby reasoning the right answers, visualizing and monitoring the problem-solving process. These findings may provide educational insights for educators who seek to understand the relationship between genetic problem-solving processes and representation.

광대역 페라이트 비드 모델을 이용한 IC 전원단의 잡음해석

이신영,손경주,최우신,이해영 한국전자파학회 2003 한국전자파학회논문지 Vol.14 No.12

SMT 타입의 페라이트 비드(ferrite bead)는 전원단에서 발생되는 잡음(noise)이 회로 소자로 유입되는 것을 막기 위해 사용되는 소자로 병렬 캐패시터(capacitor)와 직렬 인덕터(inductor) 및 저항(resistor)을 이용하여 등가 모델화된다. 이와 같은 간단한 페라이트 비드의 등가 모델은 광대역 범위에서 측정 결과와 일치하지 않는다. 본 논문에서는 광대 역(50 MHz∼3 GHz)에서 정확한 페라이트 비드의 모델을 제시하고 페라이트 비드가 있을 때와 없을 때 전원단 잡음의 회로 소자에 미치는 영향을 고찰하였다. The SMT(Surface Mount Type) ferrite bead used to reduce the influx of power bus noise is modeled with parallel capacitor(C), series resistor(R) and series inductor(L). The simple equivalent circuit modeling doesn't agree with the measurement result. In this paper, we proposed the accurate equivalent circuit model of the ferrite bead at wide frequency range(50 MHz∼3 GHz) and analyzed the noise effect to the high speed IC(Integrate Circuit) with ferrite bead or not.