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양근영(주저자) ( Yang Keunyoung ),양근영(공동저자) ( Yang Keunyoung ) 디자인융복합학회 2019 디자인융복합연구 Vol.18 No.1
이 연구는 고령화 사회 및 개인핵가족사회에 진입하는 우리나라의 현 상황에서 가정편의식 제품을 편리하게 사용할 수 있는 디자인에 대하여 알아보고자 한다. 연구방법으로 첫째, 가정편의식 이론적 고찰로서 문헌자료 및 선행연구조사를 하였다. 둘째, 디자인 조사로서 가정편의식 디자인 사례 분류를 하였다. 셋째, 실제 사용하는 이용자를 대상으로 사용자 평가 및 감성평가 조사를 실시하였다. 제품 디자인 감성평가에 의한 요인분석 결과 3개의 대표 요인으로 분류되어졌다. 1요인은 “형태적 감성”, 2요인은 “기능적 감성”, 3요인은 “심리적 감성”으로 연구자에 의한 대표 감성언어 명칭을 3가지로 부여하였다. 가정편의식 패키지 디자인으로 다음과 같이 제작되어져야할 것이다. 첫째, 용기를 들때 대부분 비닐 용기로 되어져있어 미끄러지고 떨어뜨리기 쉽기 때문에 용기에 그립감을 주어 잘 떨어뜨리지 않게 한다. 둘째, 손목이나 손가락 힘이 약한 고령자를 위하여 쉽게 뜯을 수 있게 제작 한다. 또한, 색상과 관련하여 차가운 한색계열 색상보다는 따뜻한 난색 계열색상을 이용하여 제공한다. While one person household and nuclear family have been increasing, supermarkets began to launch home meal replacement(HMR) promotion. Each brand competes over various types of HMR such as box lunch. In particular, the sales of HMR have been increasing due to one-person households. Experts predicted HMR market will be increased in the future as well. This study presents design evaluation with regards to HMR package design for elders. The methods of this study are: First, research literature review on senior society and analyse the design for both domestic and foreign HMR products. Second, survey on product design for evaluation was conducted. Third, user’s evaluation survey was conducted on elders. As a result, containers mostly came in cup or box shaped package designs. The package provided both still and illustration image of food. The HMR design for elders are recommended as follows: first, HMR should be service designed for users. Second, the design should be for elders as well. Third, the design should be empathetic and abundant. For user-interface, the packaging material shall not be slippery and the shape of grip should be considered thoroughly for the elder’s design.
Keunyoung Lee,Jaewoong Hwang,Sungjune Sohn,Min Ku Jeon 한국방사성폐기물학회 2023 한국방사성폐기물학회 학술논문요약집 Vol.21 No.2
Various types of radioactive liquid and solid wastes are generated during the operation and decommissioning of nuclear power plants. To remove radionuclides Co-60, Cs-137 etc. from a liquid waste, the ion-exchange process based on organic resins has been commonly used for the operation of nuclear facilities. Due to the considerations for the final disposal of process endproduct, other treatment methods such as adsorption, precipitation using some inorganic materials have been suggested to prepare for large amounts of waste during decommissioning. This study evaluated sintering characteristics for radioactive precipitates generated during the liquid waste treatment process. The volume reduction efficiency and compressive strength of sintered pellets were the major parameters for the evaluation. Major components of a simulated precipitate were some coagulated (oxy) hydroxides containing light elements, such as Si, Al, Mg, Ca, and zeolite particles. Green pellets compressed to around 100 MPa were heated at a range of 750~850°C to synthesize sintered pellets. It was observed that the volume reduction percentages were higher than 50% in the appropriate sintering conditions. The volume reduction was caused by the reduction of void space between particles, which is an evidence of partial glassification and ceramization of the precipitates. This result can also be attributed to conversion reactions of zeolite particles into other minerals. The compressive strength ranged from 6 to 19 MPa. These results also showed a significant correlation with the volume reduction of sintered body. Although our lab-scale experiments showed many benefits of sintering for the precipitates, optimized conditions are needed for large-scale practical applications. Evaluation of sintering characteristics as a function of pellet size and further testing will be conducted in the future.
Perceptions and attitudes of medical students regarding artificial intelligence in dermatology
( Keunyoung Hur ),( Soo Ick Cho ),( Bin Han ),( Je-ho Mun ) 대한피부과학회 2020 대한피부과학회 학술발표대회집 Vol.72 No.1
Background: Artificial intelligence (AI) is progressing rapidly, and its application in the field of medicine is increasing. AI algorithms have been shown to be as accurate as dermatologists in classifying various skin diseases based on clinical images. Objectives: To investigate the attitudes of medical students towards the application of AI in dermatology Methods: Between January and February 2020, we performed a survey to medical students from Seoul National University College of Medicine with approval by the Institutional Review Board of Seoul National University Hospital. Results: One hundred students (male/female: 53/47) completed the survey. The median age was 22.5 years. Only 10% stated that they know AI well, whereas 42% stated they do not. Thirty-one percent expressed interest in AI, and 51% declared that they have received AI-related education. Regarding the source of AI-related knowledge, students responded that they mostly received this information from newspapers and television (82/100, 82%), followed by social networking services (41%), lectures (32%), friends or family (29%), and academic papers or books (22%). Most students (83%) agreed that AI education is necessary in medical school curricula. Conclusion: The discrepancy between the degree of interest among medical students and their level of AI education requires a resolution. Medical school curricula should equip students with the skills and knowledge required to understand and apply AI.
Improving Student Learning through a Team-Based Learning Approach in a Retailing Math Course
( Keunyoung Oh ) 복식문화학회 2016 Fashion, industry and education Vol.14 No.1
Passive learning attitudes and lack of enthusiasm in a retailing math course is quite common and a significant number of students do express their frustrations and struggles by seeking extra help outside the classroom. In order to promote students` active participation in class and to improve their performance and overall satisfaction with the course, a modified team-based learning (TBL) method was implemented in a retailing math course in two consecutive semesters. Implementing TBL into a retailing math course would improve students` accountability for their own learning, increase student interactions and engagement, and develop teamwork and collaboration skills. The scores on the midterm and final tests indicated that students` performance improved especially for the students who scored below 80% on each test when TBL was implemented. Students` reflection on the TBL activities done in class throughout the semester indicated that these TBL activities help them solidify the concepts taught in class better. They were able to realize their own mistakes and other group members who got the question right helped them understand. To maximize the benefit of TBL, it is suggested to implement TBL within the flipped classroom. Further research is called for to evaluate the effect of TBL on long-term knowledge retention among college students.
Arsenic induces platelet shape change through altering focal adhesion kinase-mediated actin dynamics
Keunyoung Kim(김근영) 환경독성보건학회 2021 한국독성학회 심포지움 및 학술발표회 Vol.2021 No.5
Arsenic, an environmental contaminant in drinking water worldwide is well-established to increase cardiovascular diseases (CVDs) in humans. Of these, thrombotic events represent a major adverse effect associated with arsenic exposure, for which an abundance of epidemiological evidence exists. Platelet aggregation constitutes a pivotal step in thrombosis but arsenic alone doesn't induce aggregation and the mechanism underlying arsenic-induced thrombosis still remains unclear. Here we demonstrated that arsenic induces morphological changes of platelets, i.e., contraction and pseudopod projection, the primal events of platelet activation, which can increase platelet reactivity. Arsenite induced prominent platelet shape changes in a dose-dependent manner in freshly isolated human platelets. Of note, arsenite suppressed focal adhesion kinase (FAK) activity, which in turn activated RhoA, leading to altered actin assembly through LIMK activation, and subsequent cofilin inactivation. Arsenic-induced platelet shape change appeared to increase the sensitivity to thrombin and ADP-induced aggregation. Supporting this, latrunculin A, an inhibitor of actin-dynamics abolished it. Taken together, we demonstrated that arsenic induces cytoskeletal changes and shape changes of platelets through FAK-mediated alteration of actin dynamics, which renders platelets reactive to activating stimuli, ultimately contributing to increased thrombosis.