http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Risk-informed Emergency Response Training for Backdraft in Nuclear Power Plants
Mihyun Kim,Wonkook Kim,Hongki Kim,Jungman Kim,Sunhong Yoon,Jangwon Choi,Heemoon Kim 한국화재소방학회 2023 International Journal of Fire Science and Engineer Vol.37 No.3
Research has been conducted for developing fire evacuation and response training programs for nuclear power plant (NPP) application. Among numerous fire scenarios that may occur in an NPP environment, three different points of origin for a fire were selected for the program based on a risk-informed approach: switchgear room, main control room, and safety injection pump room. Fire outcomes were predicted for these scenarios via numerical modeling and the results were incorporated into the newly developed fire evacuation and response training program for the APR1400, Korea’s next-generation NPP model. The switchgear room fire scenario was found to have the most potential for backdraft to occur during manual fire response following automatic gaseous fire suppression system activation. The emergency response manual does discuss this possible backdraft occurrence; however, the guidance to avoid injuries is qualitative, such as to be cautious of backdrafts and wait a sufficient amount of time after opening a door before entering the. In this study, backdraft phenomenon that may occur from a switchgear room fire was numerically examined using the recent version of the Fire Dynamics Simulator to develop an appropriate timeline to be implemented in the fire evacuation and response training program. Based on the findings, the following guidance is provided: (1) backdraft can only occur when the fire originates in the space near the door; (2) wait at least 10 minutes after opening the door before entering the room; (3) watch for rapid smoke production, as this may be an antecedent phenomenon of backdraft; and (4) when smoke production increases rapidly, leave the room as soon as possible to avoid being caught within the deflagrating flames from a backdraft.
MiHyun Kim 한국디자인학회 2015 한국디자인학회 학술발표대회 논문집 Vol.2015 No.10
Graphic design is an ever-evolving discipline that largely relies on technology. Wikipedia defines that graphic design is the process of visual communication, and problem-solving through the use of type, space, image and color. Over the last a couple of decades, I have experienced graphic design media has drastically changed although the basic design elements may stay the same. Computers in graphic design are an indispensable tool, and being able to adopt as many of the design softwares as possible seems necessary for the rapid changing design industries. We often divide the graphic design discipline in two: traditional design and contemporary design. Traditional design covers mainly print medium such as logo, symbol, magazine layout/cover and contemporary design covers screen based design such as web design, user interface design, mobile design, interactive storytelling and data visualization etc. Certainly the form of contemporary graphic design evolves as technology changes, and it has affected graphic design tools more than ever. Following the birth of the internet and other networking technologies, the process of coding has become one of the most important graphic design tools. Coding-programming - has been rapidly expanding to all graphic design areas. These evolving technologies further challenge the role of graphic designers affecting vastly different media-mobile devices, the internet, film, television, wayfinding and yes, print. I believe that coding is reshaping our visual culture. Through the interplay of complex information with graphic design and coding, new and fascinating visual worlds are emerging. Learning to program and to engage the computer more directly with code opens the possibility to create not only tools, but systems, environments, and new modes of expression.
Kim, Taeho,Momin, Eric,Choi, Jonghoon,Yuan, Kristy,Zaidi, Hasan,Kim, Jaeyun,Park, Mihyun,Lee, Nohyun,McMahon, Michael T.,Quinones-Hinojosa, Alfredo,Bulte, Jeff W. M.,Hyeon, Taeghwan,Gilad, Assaf A. American Chemical Society 2011 JOURNAL OF THE AMERICAN CHEMICAL SOCIETY - Vol.133 No.9
<P/><P>Mesoporous silica-coated hollow manganese oxide (HMnO@mSiO<SUB>2</SUB>) nanoparticles were developed as a novel <I>T</I><SUB>1</SUB> magnetic resonance imaging (MRI) contrast agent. We hypothesized that the mesoporous structure of the nanoparticle shell enables optimal access of water molecules to the magnetic core, and consequently, an effective longitudinal (<I>R</I><SUB>1</SUB>) relaxation enhancement of water protons, which value was measured to be 0.99 (mM<SUP>−1</SUP>s<SUP>−1</SUP>) at 11.7 T. Adipose-derived mesenchymal stem cells (MSCs) were efficiently labeled using electroporation, with much shorter <I>T</I><SUB>1</SUB> values as compared to direct incubation without electroporation, which was also evidenced by signal enhancement on <I>T</I><SUB>1</SUB>-weighted MR images in vitro. Intracranial grafting of HMnO@mSiO<SUB>2</SUB>-labeled MSCs enabled serial MR monitoring of cell transplants over 14 days. These novel nanoparticles may extend the arsenal of currently available nanoparticle MR contrast agents by providing positive contrast on <I>T</I><SUB>1</SUB>-weighted images at high magnetic field strengths.</P>
Kim Nari,Lee Eun Sung,Won Sang Eun,Yang Mihyun,Lee Amy Junghyun,Shin Youngbin,Ko Yousun,Pyo Junhee,Park Hyo Jung,Kim Kyung Won 대한영상의학회 2022 Korean Journal of Radiology Vol.23 No.11
Immunotherapy has revolutionized and opened a new paradigm for cancer treatment. In the era of immunotherapy and molecular targeted therapy, precision medicine has gained emphasis, and an early response assessment is a key element of this approach. Treatment response assessment for immunotherapy is challenging for radiologists because of the rapid development of immunotherapeutic agents, from immune checkpoint inhibitors to chimeric antigen receptor-T cells, with which many radiologists may not be familiar, and the atypical responses to therapy, such as pseudoprogression and hyperprogression. Therefore, new response assessment methods such as immune response assessment, functional/molecular imaging biomarkers, and artificial intelligence (including radiomics and machine learning approaches) have been developed and investigated. Radiologists should be aware of recent trends in immunotherapy development and new response assessment methods.
The Politics of the Abolition of Women’s Student Councils and the Depoliticized Campus in Korea
Mihyun Kim 서울대학교 사회발전연구소 2020 Journal of Asian Sociology Vol.49 No.4
This article analyzes the political contentions on depoliticized campuses through interviews, on-campus media, and propaganda of those involved in the abolition of women’s student councils, the strongholds of the feminist movement at universities, following the popularization of feminism in Korea. As the student movement gradually weakened in the wake of democratization, undergraduate students have come to be regarded as indifferent to politics and in-school political issues were rare in the last decade. However, at a time when the feminist movement on university campuses was rekindled through the “feminism reboot,” some students began their own “activism” based online to eliminate feminism. The abolition of women’s student councils by means of such activism is regarded as a symbol of backlash. By revealing how feminism and democracy are being defined and exploited in this process, this study argues that the understanding of democracy should be rethought in Korea’s political decision-making process.