http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Seungtaek Park,Jaekyu Park,Jaeho Choe,Eui S Jung 대한인간공학회 2014 大韓人間工學會誌 Vol.33 No.6
Objective: The objective of this study was to examine frame ratio of text information and font size in the circle smartwatch. Background: Recently, electronic manufacturers try to develop the original metaphor of traditional wrist watch (circle) in terms of smartwatch. They endeavor to break the square display in order to improve emotional customer satisfaction. Method: The experiments examined twenty level of text information design, combinations of four frame ratios (1:1, 4:3, 16:9, 21:9) and five font sizes (6pt, 7pt, 8pt, 9pt, 10pt). Nineteen participants volunteered for the experiment. Dependent variables were WPM (Words per Minute), reading preference, design preference and total preference. Furthermore, small circle display was made by using circle display data (1.3inch), which was exhibited in IFA (International Funkausstellung) 2014. Results: As a result, ANOVA (Analysis of Variance) revealed that WPM, and task time preference affect the specific frame ratio and font size. Results of ANOVA for reading preference, design preference, total preference were grouped by post-analysis LSD (Least Significant Difference). Among users, display ratio (16:9, 21:9), and font size (9pt) were preferred. In conclusion, 16:9 display ratio and 9pt are adaptable for text information in 1.3inch circle display. Conclusion: From the study, it is shown that 16:9 display ratio and 9pt size are more adaptable for text information in 1.3inch circle display than others. It is mainly due to the fact that the order of frame ratio and font size may affect the usability of reading long text information in a small circle display. Therefore, when developers design a circle display, the square frame ratio and font size are required to be considered according to circle size. Application: The 16:9 display ratio and 9pt font size may be utilized as a text information frame in the circle display design guideline for smartwatch.
FutureSteelVehicle - Steel Technology Assessment and Design Optimization
Seungtaek Hong(홍승택),Soonyong Kwon(권순용),Jaehyun Kim(김재현),Jaebok Nam(남재복),Sungho Park(박성호) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
FutureSteelVehicle’s (FSV) objective is to develop detailed design concepts for a radically different steel body structure for a compact Battery Electric Vehicle (BEV). It also will identify structure changes to accommodate larger Plug-In Hybrid (PHEV) and Fuel Cell (FCEV) vehicle variants. The paper will demonstrate optimization of seven structural sub-systems that contribute to the programme’s 35 percent mass reduction goals and meet its safety and life cycle emissions targets. It will explain the state-of-the-future advanced design optimization process used and a new paradigm for selecting the best structural solutions for a Battery Electric Vehicle. Put Abstract here. Put Abstract
A Study on the effect of the button location and type on driver workload
Seungtaek Park,Kimin Ban,Junghyun Lee,Jaeho Choe,Eui S. Jung 대한인간공학회 2013 대한인간공학회 학술대회논문집 Vol.2013 No.10
Objective: Purpose of this study is to find out workload and task completion time in accordance with automobiles’ various package locations of tactile button and touch button. Method: For the research, independent variables were package locations (steering wheel(Right), steering wheel(Left), center console, overhead console, center fascia(Bottom), center fascia(Top), crash pad, overhead console) and button type (tactile button, touch button). For dependent variables, amount of time that the ahead of eye was out of road was called task completion time which was objective measured value. For subjective measured value, workload was measured by using Cooper Harper Scale. Furthermore, seating buck was made by using automobile’s package location data. In order to investigate differences in workload and task completion time in accordance with automobiles’ various package locations of tactile button and touch button, Analysis of Variance (ANOVA) was used. Conclusion: As a result, even though touch buttons on overhead console, and center console location fall behind in safety perception than other package location, touch button had shorter task completion time and less workload in supplementary task while driving on steering wheel(Right, Left), center fascia(Top) locations than tactile button Application: This study can be utilized as basic data for safety perception improvement guide plan when applying touch button in automobile.
Basic research workshop : Tools for HCV Research in the Era of DAA
( Seungtaek Kim ) 대한간학회 2014 춘·추계 학술대회 (KASL) Vol.2014 No.2
Since its discovery in 1989, hepatitis C virus (HCV) has been a target of intensive investigation, which has also accompanied development of various research tools. A major obstacle in HCV research was overcome by development of replicon system in 1999, which allowed for HCV RNA replication in Huh7 hepatoma cells. Subsequent findings of cell culture-adaptive mutations and isolation of highly permissive cell lines have substantially enhanced HCV RNA replication, thus providing a convenient cell culture screening system for drug discovery. On the other hand, development of HCVpp system allowed for specific investigation of virus entry. A cell culture-infectious clone, which can recapitulate the entire viral life cycle of HCV, had been evasive for a long time but was finally discovered from a Japanese fulminant hepatitis patient. This clone, named JFH1, has enabled studying all the steps of HCV life cycle in cell culture. All these research tools are now available with many different genotypes of HCV and more are expected to come by introducing lipid peroxidation-resistant amino acids in nonstructural proteins of HCV replication complex, which was recently demonstrated as a major reason for robust replication of JFH1.
( Seungtaek Kim ),( Hye-jung Park ),( Hye Won Lee ),( Kwang-hyub Han ),( Sang Hoon Ahn ) 대한간학회 2016 춘·추계 학술대회 (KASL) Vol.2016 No.1
Aims: Daclatasvir plus asunaprevir treatment is the first direct-acting antiviral (DAA) treatment in Korea for the genotype 1b chronic hepatitis C patients. Despite its high sustained virologic response (SVR), emergence of resistance mutations is still a serious problem. In this study, resistance mutations of hepatitis C virus NS3 protease and NS5A were analyzed for the patients who had failed in daclatasvir plus asunaprevir treatment in Korea. Methods: Blood samples were collected from the 5 patients who had failed in daclatasvir plus asunaprevir treatment. Viral RNA was isolated from the blood samples and NS3 protease domain and NS5A domain I were amplified by RT-PCR. The amplified DNA fragments were read by direct sequencing reactions and the resistance mutations were identified by comparing to the genotype 1b Con1 isolate sequence. Results: A well-known Y93H mutation of NS5A was observed in 4 out of the 5 treatment failures. Substitution mutations at Leu 31 (Val or Met) of NS5A were also observed in 3 out of the 4 Y93H-containing blood samples. However, one sample did not have any substitution mutations at Leu 31 and Tyr 93. Instead, it had a deletion mutation at Pro 32. Sequencing of NS3 protease domain found substitution mutations at Asp 168 (Tyr, Glu, Ala, or Val) in the 5 treatment failures. Apart from these well-known resistance mutations of NS3 and NS5A, other mutations were also found compared to the genotype 1b Con1 isolate sequence. Conclusions: Resistance mutations against the daclatasvir plus asunaprevir treatment were identified among Korean patients by this study. The data collected from this investigation would help select retreatment options and could identify additional mutations that had not been identified in the previous clinical trials.
Analysis of forces on a charged micron-sized particle between two parallel-plate electrodes
Seungtaek Kim(김승택),Sangho Lee(이상호),Yong-Kweon Kim(김용권) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
This paper investigates forces on a charged particle used in the e-paper application. The particles were inserted into the pixels and according to the applied voltage, particles moves up or down to the electrodes. So, to design the e-paper, the force analysis is very important for the stable operation of e-paper. For these purposes, we divided forces into 4 different forces and numerically evaluated each force. From the simulation results, we confirmed that the minimum voltage to detach the particle from the bottom electrode can be obtained for the given condition.
( Seungtaek Kim ) 한국미생물 · 생명공학회 2022 Journal of microbiology and biotechnology Vol.32 No.1
Diagnostics, vaccines, and drugs are indispensable tools and control measures employed to overcome infectious diseases such as coronavirus disease 2019 (COVID-19). Diagnostic tools based on RT-PCR were developed early in the COVID-19 pandemic and were urgently required for quarantine (testing, tracing and isolation). Vaccines such as mRNA vaccines and virus-vectored vaccines were also successfully developed using new platform technologies within one year after identifying severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as the causative agent of COVID-19. Drug development has been conducted in various ways including drug repurposing, convalescent plasma therapy, and monoclonal antibody development. Among the above efforts, this review examines COVID-19 drug development along with the related and upcoming challenges.