• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
• /
• v.7 no.3
• /
• pp.151-161
• /
• 2017

In the period of Japanese occupation comic narratives were popular to such an extent as to be published not only newspapers and magazines but also books as 『Yojigyeong』(1910), 『Jeodobaekhwa』(1912), 『Gaegeonhuihui』(1912), 『Angcheondaeso』(1913), 『Kkalkkaluseum』(1916), 『Socheonsoji』(1918), 『Gogeumgidamjip』(1923), 『Mangogidam』(1924), 『Joseonpaldo iksal & jaedam』(1927), 『Segyesohwajip』(1934). This study is to discuss about how those narratives gain modernity with the titles scattered in 『Byeolgeongon』 as the central figure, and to reveal the nature of the comic narratives in 『Byeolgeongon』 by looking into contents. The comic narratives in the magazine are 149, especially from the titles show the editors' agony at that time. The narratives gain modernity by combining the new trend cultural terms which can't be found in our traditional culture as 'sinbu huboja jeonramhwoe.', 'sinrang huboja jeonramhoe.', 'nonsense teuksseolgwan', 'how modern shipbuilding 10 inventions sinjejo', 'sohwabangsongsil', 'sohwabangsongguk', 'freedom march', 'sinchunpoksodaehwoe' and 'humor orchestra'. The narratives give laughter to the readers by carrying the characters such as wit, enlightenment, critics of social conditions, grotesque. The narratives in the magazine 『Byeolgeongon』 represent much to survive with comic story in a time of gloom in the period of Japanese occupation.

• Korean Journal of Microbiology
• /
• v.48 no.2
• /
• pp.79-86
• /
• 2012

ErmSF is one of the Erm family proteins which catalyze S-adenosyl-$_L$-methionine dependent modification of a specific adenine residue (A2058, E. coli numbering) in bacterial 23S rRNA, thereby conferring resistance to clinically important macrolide, lincosamide and streptogramin B ($MLS_B$) antibiotics. $^{222}FXPXPXVXS^{230}$ (ErmSF numbering) sequence appears to be a consensus sequence among the Erm family. This sequence was supposed to be involved in direct interaction with the target adenine from the structural studies of Erm protein ErmC'. But in DNA methyltarnsferase M. Taq I, this interaction have been identified biochemically and from the complex structure with substrate. Arginine 223 and 227 in this sequence are not conserved among Erm proteins, but because of the basic nature of residues, it was expected to interact with RNA substrates. Two amino acid residues were replaced with Ala by site-directed mutagenesis. Two mutant proteins still maintained its activity in vivo and resistant to the antibiotic erythromycin. Compared to the wild-type ErmSF, R223A and R227A proteins retained about 50% and 88% of activity in vitro, respectively. Even though those arginine residues are not essential in the catalytic step, with their positive charge they may play an important role for RNA binding.

• Korean Journal of Agricultural and Forest Meteorology
• /
• v.9 no.1
• /
• pp.61-70
• /
• 2007

This study was conducted to investigate nutrient dynamics and water quantity of throughfall and stemflow in natural oak stands in Korea. The ratio of the total throughfnll and stemflow to the amount of precipitation varied with locations. It was considered that the ratio was affected not only by the characteristics of tree species but also by regional, weather and other environmental conditions. It was, therefore, necessary to set up a water control system to launch a tending project for natural oak stands. Comparisons of nutrient amount in throughfall among regions reflected regional characteristics. $Ca^{2+},\;Mg^{2+}$ and $K^+$ ions were leached from the canopy and yellow sand accumulation. $Na^+$ and $Cl^-$ were marine-borne. $NO_3^-$ and $SO_4^{2-}$ resulted from dry deposition of air pollutants. Nutrient amount in the stemflow was as low as about 10% of that in the total throughfall and stemflow. The pH of stemflow in natural oak stands in urban areas ranged from 3 to 5. Influx of the acidic stemflow to soil could, in the long term, affect pH in soil solution and nutrient dynamics around root zones.

• Analytical Science and Technology
• /
• v.6 no.1
• /
• pp.9-19
• /
• 1993

Fatty acid salts derived from soap can be transferred into a typical derivative with p-bromophenacyl bromide using crown ether, a catalizer by the solid-liquid phase transfer reaction in nonpolar, aprotic solvents and separated by the reverse phase high performance liquid Chromatography (RP-HPLC) and determined using UV detector. The minimal limit of detection was defined at approximately 10~50ng in accordance with the chain length. The derivatization reaction in the presence of EDTA can be applied mot only to the calcium salts but also to the other various metal salts. The recoveries of fatty acid derivatizations in the absence and presence of the midium containing the yeast extract were obtained $95.4{\pm}1.2$, and $85.2{\pm}2.4%$ respectively. The analytical method would be applicable to determine the biodegradation of fatty acid salts in nature as well as in artificial condition such as shaker flask-medium method.

• Culinary science and hospitality research
• /
• v.16 no.2
• /
• pp.136-154
• /
• 2010

This study aims to suggest theoretical models to examine the composition factors of recognition, image, attitude toward Korean food and its globalization and investigate their relationships, which was analyzed based on the results of a survey. To achieve this research purpose, frequency analysis, exploratory factor analysis and the analysis of Cronbach a values were performed using the SPSS 13.0 program, and multiple regression analysis and simple regression analysis were also performed to analyze their relationships. The results of this study are as follows. First, the recognition of Korean food influenced its image and attitude toward it. Second, image of Korean food had an effect on attitude toward it. Third, both image and attitude regarding Korean food influenced globalization of Korean food. Accordingly, what this study can contribute to in the development of Korean food culture are as follows. First, this study will contribute to making a good image of Korean food and its globalization by changing people's recognition, image, and attitude toward Korean food and making them interested in Korean food suitable for globalization. Second, this study will help to make detailed marketing strategies to globalize Korean products and culture through Korean food. Third, this study will be helpful for improving the image of Korean food and creating economic benefits by attracting Korean food tourism. Moreover, it will help to give Korean people hope and pride of their lives. Fourth, this study will help to promote activation of Korean food tourist resources by connecting Korean food recognized to be LOHAS and well-being foods with Korean cultural tourist resorts. Fifth, this study will make people have right recognition and attitude by developing nature-friendly and healthy Korean food culture. Sixth, this study will be a detonator for more active studies by encouraging researchers to be concerned about and participate in globalization and commercialization of Korean food continually.

• Analytical Science and Technology
• /
• v.23 no.2
• /
• pp.216-223
• /
• 2010

In previous research, results on efficiency versus size and type of Ag particles showed similarity of detection efficiency comparing the particles of flake and spherical type with the gray particle on the market and in the case of nAg (rod, $0.9\;{\mu}m$) particle, relatively good results was given in the various evaluation methods for detection efficiency of latent fingerprint. However, oxidation was occurred when nAg particles laying on nature condition for a month and due to water absorption, detection efficiency was decreased. Therefore, with need to prevent oxidation and water absorption, more research is necessary. In this research, surface modification on nAg particles using silicon oil was conducted in various methods for complementing weakness of oxidation and water absorption. Then detection efficiency of nAg particles and surface modified nAg particles was evaluated by the number of feature points on the surface of non-porous materials (glass, plastic etc.) and degree of particle adhesion with ridges and contrast of detected fingerprint. Improvement of preventing oxidation and water absorbtion was given by surface modification using silicon oil (DC200, 0.5%) on the surface of non-porous materials.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.20 no.11
• /
• pp.170-180
• /
• 2019

The aim of this study was to understand the nature and semantic structure of male smokers' experience of smoking cessation attempts. The participants were nine male smokers with at least one smoking cessation attempt, and who responded voluntarily to the preliminary survey. Data collection was conducted from September to December 2017, and the results of individual in-depth interview were analyzed by applying the Giorgi(2009)'s phenomenological research method. Result: 'Attempt's of smoking cessation', 'Several failed attempts of smoking cessation', 'Desperate need for help' and 'An important factor in the success of smoking cessation'. Conclusion: The present study showed that male smokers were desperate for outside intervention, smoking cessation policies, and help from family members and acquaintances as they tried to cease smoking. Therefore, it is necessary to have a comprehensive understanding of smoking men's experience in smoking cessation, to identify their nursing needs, and provide necessary nursing intervention so that they can lead a healthy life as a member of society without giving up smoking. This study is meaningful in that smoking men can gain new insights by providing a comprehensive and comprehensive understanding of their experience

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.19 no.6
• /
• pp.46-54
• /
• 2018

The Internet of Things (IoT) is an environment in which various devices provide services to users through communications. Because of the nature of the IoT, data are stored and distributed in heterogeneous information systems. In this situation, IoT end applications should be able to access data without having information on where the data are or what the type of storage is. This mechanism is called Service Discovery (SD). However, some problems arise, since the current SD architectures search for data in physical devices. First, turnaround time increases from searching for services based on physical location. Second, there is a need for a data structure to manage devices and services separately. These increase the administrator's service configuration complexity. As a result, the device-oriented SD structure is not suitable to the IoT. Therefore, we propose an SD structure called Name-based Service-centric Service Discovery (NSSD). NSSD provides name-based centralized SD and uses the IoT edge gateway as a cache server to speed up service discovery. Simulation results show that NSSD provides about twice the improvement in average turnaround time, compared to existing domain name system and distributed hash table SD architectures.

• Journal of Service Research and Studies
• /
• v.5 no.2
• /
• pp.111-118
• /
• 2015

Although the development of mobile devices are made us a free life, they were displayed the subject of this financial crime and attacking forces in the other side. Among finance-related crime is become a serious crime that are targeting smartphones by SMS phishing, phishing, pharming, voice phishing etc. In particular, SMS phishing is increased according to phenomenon using the nature of a text message in the mobile. SMS phishing is become new crime due to the burden to the smartphone user. Their crime is also the advanced way from the existing fraud, such as making the malicious apps. Especially it generates loopholes in the law by a method such as using a foreign server. For safe from SMS phishing attacks, proactive pre-diagnosis is even more important rather than post responses. It is necessary to deploy blocking programs for detecting SMS phishing attacks in advance to do this. In this paper we are investigating the process of block types and block apps that are currently deployed and presenting the evaluation of the application of the detection block setting app.

• Microbiology and Biotechnology Letters
• /
• v.35 no.1
• /
• pp.1-10
• /
• 2007

The 44 endophytic bacterial strains were isolated from surface-sterilized root of rice cultivated in seven different locations of Chungcheong province, Korea. Each isolate was introduced into rice seedlings grown gnotobiotically by inoculating scissor-cut first true leaf with cell suspensions, and the colonization capacity of each isolate in root tissue was analyzed at 7 days after inoculation. Sixteen out of 44 isolates were re-isolated from root successfully with the frequency of $10^{3-5}$ CFU/g tissue. Interestingly, seven out of 16 isolates were identified as Burkholderia species. The identity between inoculated strains and re-isolates was confirmed by genomic finger-printing and 16S rDNA sequence analysis. By a confocal laser scanning microscopic observation it was revealed that KJ001 strain, one of the sixteen isolates tagged with gfp colonized in root tissue especially around xylem. Six out of seven Burkholderia strains obtained in this study showed antagonizing activities against seven different fungal pathogens, contain nifH gene, and five of them enhanced growth of cucumber over 30%. The isolates showed no hypersensitive response on tobacco leaves and no pathogenecity in rice. From these results it was found that the endophytic Burkholderia strains will be useful in agriculture to develop a biocontrol agent or a bio-fertilizer.