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Usability Tests with a Virtual Arthroscopic Surgery Simulator
Hyukjin Kwon,Einjeong Hwang,Seoktae Yun,Myeungcheol Shin,Jaegyun Lim 대한전자공학회 2020 IEIE Transactions on Smart Processing & Computing Vol.9 No.1
Arthroscopic surgery is one of the most difficult surgeries, so even if an orthopedic resident trains a lot, it is difficult to perform surgery well. In addition, a resident does not have many opportunities to perform surgery before becoming a licensed orthopedist. In order to help train residents, we created a virtual arthroscopic surgery simulator. Our goal is to improve the residents’ surgical proficiency in repairing rotator cuff tears and Bankart lesions. We carried out nine usability tests with an orthopedist, and are improving the simulator based on the results.
mRNA vaccines: the most recent clinical applications of synthetic mRNA
Suji Kwon,Minseon Kwon,Seongeun Im,Kyuri Lee,Hyukjin Lee 대한약학회 2022 Archives of Pharmacal Research Vol.45 No.4
Synthetic mRNA has been considered as anemerging biotherapeutic agent for the past decades. Recently,the SARS-CoV-2 pandemic has led to the fi rst clinical useof synthetic mRNA. mRNA vaccines showed far surpassinginfl uences on the public as compared to other vaccine platformssuch as viral vector vaccines and recombinant proteinvaccines. It allowed rapid development and production ofvaccines that have never been achieved in history. SyntheticmRNA, called in vitro transcribed (IVT) mRNA, is the keycomponent of mRNA vaccines. It has several advantagesover conventional gene-expressing systems such as plasmidDNA and viral vectors. It can translate proteins in the cytoplasmby structurally resembling natural mRNA and exhibitvarious protein expression patterns depending on how it isengineered. Another advantage is that synthetic mRNA enablesfast, scalable, and cost-eff ective production. Therefore,starting with the mRNA vaccine, synthetic mRNA is nowin the spotlight as a promising new drug development agent. In this review, we will summarize the latest IVT mRNAtechnology such as new mRNA structures or large-scale production. In addition, the nature of the innate immunogenicityof IVT mRNA will be discussed along with its roles inthe development of vaccines. Finally, the principles of the mRNA vaccine and the future direction of synthetic mRNAwill be provided.
분산 객체 기반 로드 밸런싱 서버 시스템의 설계 및 구현
권혁진(HyukJin Kwon),최영규(YoungGyu Choi) 한국정보기술학회 2005 Proceedings of KIIT Conference Vol.2005 No.-
인터넷 사용자의 증가는 사용자에 대한 서버의 요청률을 급증시켰다. 이로 인해 고가용성과 확장성을 지난 고성능 서버들이 요구되고 있는 실정이나 서버를 증설하는 것은 많은 비용을 들여야 하는 문제점이 있다. 이러한 문제를 해결하기 위해 본 논문에서는 클라이언트의 요청을 트래픽이 적은 서버에게 분산 시키는 로드 밸런싱 서버를 설계 및 구현하였다. 또한 분산 객체 기반 설계로 효율적인 유지ㆍ보수와 높은 수준의 유연성과 확장성을 더하였다. 구현한 시스템은 다수 클라이언트로 요청으로부터 단일 서버와 비교해본 결과 클라이언트 수의 증가에 따라 비교적 짧은 응답지연시간을 유지함을 보인다. Internet user's increase did to increase rapidly server's request rate about user. There is problem that it must spend a lot of expenses to increase real condition or server who high efficiency servers who have High Availability and extensity thereby are required. In paper that see to solve these problem client's request traffic rod balancing server who force few server breakup design and embody . Also, preservation which is efficient by breakup object base design Added conservatism and softness of High level and extensity. System that embody is seen that keep relative short response delay time according to increase of wave and client number that compare with single server from request by majority client.
호텔기업의 ICT 도입에 따른 4차 산업혁명 맞춤형 인재양성 교육프로그램 개발에 관한 연구
권혁진(Hyukjin Kwon),지윤호(Yunho Ji) 한국인터넷전자상거래학회 2020 인터넷전자상거래연구 Vol.20 No.1
This study aims to establish the purpose and direction of ICT-related education programs in preparation for the demand of manpower in the job of each part according to the application of ICT in the hotel industry, and to suggest future job utilization plans by suggesting a program verified through the FGI (Focus Group Interview). Specifically, this study will verify the appropriateness of job and technology level that needs ICT introduction in the hotel industry and establish the utilization system to provide the necessary policy support and help reduce mismatch of future hotel industry manpower. As a result of the demand survey and FGI in this study, it was shown that the technology and capability that hotel companies need first was the understanding of S/W related to big data and the utilization of database. Also, as innovative service of hotel company is expanding into the IoT, education and training are needed. Lastly, the educational program(plan) in this study is only basic education and training for the fourth revolution, but in the field, it is necessary to develop the deepening process that can be selectively used according to position, occupation, department and can train ICT experts in personnel, technology, and computer field.
근로소득세의 재분배효과와 누진도 분해: 2009~2015년 - 소득세 공제 제도의 역할을 중심으로 -
권혁진 ( Hyukjin Kwon ) 한국재정정책학회 2018 財政政策論集 Vol.20 No.2
This study developed an income tax estimation model based on KLIPS during 2009-2015, which in turn analyzed the effect of complicated interactions among the components of the tax system, tax rates and deductions, on the income redistributive function of personal income taxation(PIT) and its progressivity. The main implications of this study are: First, The reduction in the amount of income tax deduction from the taxation reform in 2014 has narrowed the gap between the pre-tax income and the tax base, which greatly reinforced the progressivity of the tax rates and the wage and salary income credit, and further reinforced the total progressivity of PIT. The problem that the progressivity of deduction for wage income has been reduced since 2014, needs to be improved through further review. Second, Evaluation and reform of the taxation system needs to be carried out very carefully, taking into account the progressive degree of the deduction amount itself, rather than simply focusing on the redistribution effect of the taxation. Because, basically, the income tax deduction system is relatively advantageous for the high income people, even though the deduction is progressive. If any of the current tax deductions is abolished, the redistributive effect of tax will inevitably be extended, regardless of its characteristics(regressive or progressive). Thus, when it would be reformed against the deduction which the amount of it was regressive, policies to improve the redistribution effect of the tax could be made more efficiently. In this context, a detailed review is needed of the deductions involved in the social insurance and savings categories.