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      • KCI등재

        B2M 프로세스 기반의 학원관리 시스템 설계

        김영아,이건우,김의룡,김영곤,Kim, Young A,Lee, Kun Woo,Kim, Eui Ryong,Kim, Young Gon 한국인터넷방송통신학회 2021 한국인터넷방송통신학회 논문지 Vol.21 No.5

        사교육의 발달과 교육환경의 변화로 인하여 학원홍보와 학생과의 커뮤니티 및 모바일 환경에서 학원관리의 다양한 업무 사항에 대하여 학원관리시스템의 필요성이 대두되고 있다. 하지만 학생들의 등하교에 따른 출석관리와 후원자에게 공지사항 전달 및 강사 관리 등, 기존의 학원 업무를 위해 개발된 솔루션들은 대형학원 위주로 특화되고 전문화되어 있어 중소규모의 학원에는 사용이 어렵고, 비용이 고가이기 때문에 대부분의 학원에는 적합하지 못하고 학원들의 다양한 요구사항을 반영할 수 없는 문제점이 존재한다. 따라서, 본 논문은 학원의 일반적인 업무에 대한 요구사항을 추출하고, 추출된 요구사항을 분석 및 정의하여 학사행정 및 매니저관리, 출결관리, 학생관리 등 학원업무 최적화된 기능을 기반으로 신속 정확한 정보처리와 신뢰도 향상 및 업무 처리 비용을 절감할 수 있는 B2M 기반의 학원관리시스템을 설계하였다. Due to the development of private education and changes in the educational environment, the need for an academy management system is emerging for various tasks of academy management in the community and mobile environment with students. However, solutions developed for existing academy tasks, such as attendance management for students, announcement, and instructor management to sponsors, are specialized and specialized in large academy, making it difficult to use in small and medium-sized academy. Also, there are problems that are not suitable for most academy and cannot reflect various requirements of institutes because of the high cost. In order to solve these problems, this paper designed a B2M-based academy management system that can quickly improve information processing, improve credibility, and reduce the cost of processing tasks based on optimized functions such as academic administration and manager management, attendance management, and student management.

      • KCI등재
      • SCOPUSKCI등재

        인간 배아 동결 해빙시 액체질소의 분사속도가 배아 발달 및 임신에 미치는 영향

        김영아,서성석,김미란,황경주,박동욱,조미영,유희석,Kim, Young-Ah,Seo, Seong-Seog,Kim, Mi-Ran,Hwang, Kyung-Joo,Park, Dong-Wook,Jo, Mi-Yeong,Ryu, Hee-Suk 대한생식의학회 2001 Clinical and Experimental Reproductive Medicine Vol.28 No.4

        Objective : To investigate the efficacy of high infusion frequency of liquid nitrogen on pregnancy in human embryo after freezing and thawing. Materials and Methods: 150 infertile patients underwent 162 consecutive thawing-ET cycles. In the high infusion frequency group (Group A), 47 patients (50 cycles) underwent cryopreservation with high infusion frequency of liquid nitrogen. In the low infusion frequency group (Group B), 103 patients (112 cycles) underwent cryopreservation with low infusion frequency of liquid nitrogen. We analyzed the clinical characteristics, fertilization rates, development of embryo, good quality embryo ratio, implantation rates, and pregnancy rates between these two groups. Results: There was no difference between the groups with regard to clinical characteristics (mean age, infertility duration, infertility factors, hormone profile), mean number of oocyte retrieval, fertilization rates, and mean embryo number of transfers. The survival rates in group A was 64.9% (228 of 350 embryos), and among the 228 embryos 190 embryos (83.3%) which progressed to the two- to eight-cell stage. After thawing, the embryo numbers were 65 (34.2%), 29 (15.3%), 35 (18.4%), and 37 (19.5%) of grades 1, 2, 3, and above 4, respectively. The survival rates in group B was 63.8% (482 of 755 embryos), and among the 482 embryos 465 embryos (96.5%) which progressed to the two- to eight-cell stage. After thawing, the embryo numbers were 106 (22.8%), 94 (20.2%), 89 (19.1%), and 112 (24.1%) of grades 1, 2, 3, and above 4, respectively. There was no difference in embryo quality change after the freezing-thawing procedure between the groups. Implantation rates (31.1% vs. 34.3%) were not significant. However hCG positive rates in group A (40%) were higher than group B, but not statistically significant. Clinical pregnancy rate (26% vs. 25.9%), on going pregnancy rates (>20 weeks) were not significant (26% vs. 25%). Conclusion: We compared embryo quality change, survival rates, and pregnancy rates between high infusion frequency group and low infusion frequency group and the results were similar between the two groups. Therefore, high infusion frequency of liquid nitrogen for cryopreservation is a worthy method to preserve in human embryos.

      • SCOPUSKCI등재

        도토리묵의 물리적 특성 -Puncture test 와 Back Extrusion test-

        김영아,이혜수,Kim, Young-A,Rhee, Hei-Soo 한국식품과학회 1985 한국식품과학회지 Vol.17 No.6

        도토리묵의 관통검사와 Back Extrusion test를 실시하여 각각의 특징적인 force-distance curve를 구하였다. 관통검사시에 관여하는 compression force와 shear force의 기여도를 알기 위하여 $K{\acute{c}}$와 $K{\acute{s}}$를 계산하였다. 도토리묵의 관통에는 compression force가 훨씬 더 크게 기여하고, 도토리묵의 농도가 클수록 탐침의 지름이 커질수록 그 기여도가 더 증가하였다. Back Extrusion test에 의해 얻어지는 maximum Extrusion force는 시료량의 증감에는 변화가 없었지만, 도토리묵의 농도가 증가함에 따라서는 그 값이 증가하였다. The typical force-distance curves by puncture test and Back Extrusion test of acorn flour gels were investigated. Kc' and Ks' were calculated to estimate the compression and shear components of a puncture force. In this study, compression effect played a major role. The more concentration of acorn flour gel and diameter of probe increased, the more compression force contributed to the puncture force. In the Back Extrusion test, the effect of increasing the sample size was to extend the length of the plateau without affecting the maximum force. However, as the concentration of acorn flour gel increased, maximum Extrusion force became larger.

      • SCOPUSKCI등재
      • KCI등재

        원유로 오염된 갯벌 지역의 자연정화 기능 향상 기술의 개발

        김영아,성기준,Kim, Young-A,Sung, Ki-June 한국지하수토양환경학회 2011 지하수토양환경 Vol.16 No.5

        Tidal flats which are ecologically sensitive, are hard to remediate once they are contaminated by oil spill accidents. Traditional oil remediation measures focus on removal efficiency, and their improper implementation can adversely affect crude oil contaminated coastal areas and greatly disrupt the structure and functions of crude oil contaminated tidal flats. In this study, the oil degradation due to the implementation of remediation measures naturally enhanced using air and natural oil sorbents was evaluated in the lower strata of tidal flats. The effects of air and natural oil sorbents on oil degradation for two concentration levels (< 500 ppm and > 500 ppm) were tested at artificially contaminated tidal flats. Fifty days after these treatments, the natural oil sorbent treatment showed the lowest total petroleum hydrocarbon (TPH) concentration ($4.46{\pm}1.47%$) at the low concentration level, whereas both air and natural oil sorbent treatments showed high degradation efficiencies at the high concentration level ($29.30{\pm}4.39%$). Although the phosphatase activity decreased for all treatments, there was no significant difference between the decreases for the different treatments; on the other hand, B-glucosidase activities were high for both air and natural oil sorbent treatments. Although degradation efficiencies decreased as the concentration increased, the air provision and natural oil sorbent treatment could be an effective ecological restoration measure for oil contaminated tidal flats while minimizing the environmental impact of the remediation efforts.

      • KCI등재

        초등수학영재의 분수 나눗셈의 이해에 관한 연구

        김영아,김동화,노지화,Kim, Young A,Kim, Dong Hwa,Noh, Ji Hwa 영남수학회 2016 East Asian mathematical journal Vol.32 No.4

        The purpose of this study was to analyze the understanding of the meaning of fraction division and fraction division algorithm of elementary mathematical gifted students through the process of problem posing and solving activities. For this goal, students were asked to pose more than two real-world problems with respect to the fraction division of ${\frac{3}{4}}{\div}{\frac{2}{3}}$, and to explain the validity of the operation ${\frac{3}{4}}{\div}{\frac{2}{3}}={\frac{3}{4}}{\times}{\frac{3}{2}}$ in the process of solving the posed problems. As the results, although the gifted students posed more word problems in the 'inverse of multiplication' and 'inverse of a cartesian product' situations compared to the general students and pre-service elementary teachers in the previous researches, most of them also preferred to understanding the meaning of fractional division in the 'measurement division' situation. Handling the fractional division by converting it into the division of natural numbers through reduction to a common denominator in the 'measurement division', they showed the poor understanding of the meaning of multiplication by the reciprocal of divisor in the fraction division algorithm. So we suggest following: First, instruction on fraction division based on various problem situations is necessary. Second, eliciting fractional division algorithm in partitive division situation is strongly recommended for helping students understand the meaning of the reciprocal of divisor. Third, it is necessary to incorporate real-world problem posing tasks into elementary mathematics classroom for fostering mathematical creativity as well as problem solving ability.

      • 대학생을 위한 정서관리 심리교육 프로그램 개발 및 효과분석 : A대학상담소 마음건강 혁신지원사업을 중심으로

        김영아(Young-ah Kim),이두류(Du-ryu Lee) 전국대학교학생상담센터협의회 2023 대학생활연구 Vol.29 No.1

        본 연구는 대학생을 위한 정서관리 심리교육 프로그램을 개발하고 그 효과를 검증하는 것을 목적으로 하였다. 이를 위해 김창대 등이 제안한 프로그랜 개발 모형에 따라 프로그램을 개발하였다. 이 프로그램은 대학생들이 자신의 정서조절을 위해, 정서에 대해 바르게 인식하고, 표현할 수 있도록 돕기 위해 15 명 이하 소규모 활동형 심리교육으로 이루어져 있으며, 총 90-120분으로 구성되었다. 프로그램의 효과를 분석하기 위하여 프로그램에 참여한 총 87 명에 대한 정서에 대한 신념을 사전-사후로 비교하였다. 추가로 참여학생 및 운영강사 피드백, 프로그랜 만족도, A대학 핵심역량 도움 정도를 분석하였으며, 수집된 자료는 SPSS WIN 23.0을 사용하였다. 그 결과, 프로그램에 참여한 대학생들은 정서에 대한 경직된 신념이 유의미하게 긍정적으로 변화한 것으로 나타났으며, 3가지 핵심역량(의사소통능력, 정서 감수성, 사고의 유연성) 향상에 도움이 되었다고 보고하였다. 끝으로 본 연구의 결과에 대해 논의하고 후속 연구에 대해 제언하였다. The purpose of this study was to develop and effect a Emotion Management Psychoeducation Program for college student s. To achieve the goals of this study, the program was developed based on the program development model suggested by Chang-Dai Kim. The program was composed of 90-120 minutes, and the data collected in this study was analyzed using SPSS WIN 23.0. The result s of thi s study are as follows: First, students who participated in the program scored significantly higher in the measures for the beliefs about emotions right after the end of the program. Second, students reported that this training helped improve three core competencies: communication skills, emotional sensitivity, and flexibility of thinking. The result s of thi s study were discussed and further studies were suggested.

      • KCI등재

        A successful application of adult polymyxin B-immobilized fiber column hemoperfusion to a neonate with septic shock

        김영아,Hyungtae Kim,Yu-Mi Kim,박수은 대한중환자의학회 2019 Acute and Critical Care Vol.34 No.4

        Direct hemoperfusion therapy with a polymyxin B-immobilized fiber column (PMX-HP) has been introduced as a therapeutic option for gram negative bacterial septic shock in adults. However, its use in neonates and children has not yet been established. We successfully performed hemoperfusion therapy using an adult polymyxin B-immobilized fiber column in a neonate with carbapenem resistant Acinetobacter baumannii septic shock. The application was technically feasible because the neonate was on extracorporeal membrane oxygenation (ECMO). Although it did not rescue the patient, there was significant short-lasting improvement in pulmonary oxygenation and hemodynamics, leading to wean the patient from ECMO. PMX-HP could be used as an adjunctive treatment for selected neonatal and pediatric patients with gram negative bacterial septic shock.

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