• Korean Business Review
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• v.19 no.1
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• pp.35-51
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• 2006

Airline industry which is depressed owing to terror attack on September 11 and Iraq War in early 21 century through high fuel cost and continuous recession in the second half of 90's is gradually recovering from the year of 2004. So demand of airline industry is rising step by step and investment of airlines toward customer service is also going up. Recently some mega carriers in head customer service in-flight internet service. In addition, so do domestic airlines and others ant to be backward. Many Study on usage attitude toward internet have been argued continuously as a result of everyday life using internet. Although there were survey for the revenue perspective of the firm, study on the side of the consumer is so rare. This study used the model of DEA -conjoint what users of the in-flight internet service now attitude and preference important factors to use. As a result, factors chosen are method to charge, service speed of internet, quality of contents provided and ease of approach toward information. This study presents airlines supplying in-flight internet service now to differentiation strategy for each segment.

• Proceedings of the Korea Information Assurance Society Conference
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• 2004.05a
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• pp.219-225
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• 2004

There is increasing tension in the Korean Peninsula from the US' putting the NK's nuclear issue along the line of war in Iraq. However, there is worsening in ROK's field exercise condition from decresing defense financial supports, being difficlut to obtain enough space for volumable exercises, and securities and circumstances issues. With acknowleging those problems, CPX(Command Post Exercise), namely war game exercise which is more economical and scientific exercise has earned its attention as the best alternative measure of field exercise war game exercise has already been applyied to independent, joint, and combined exercises. However, the current war game system contains lots of problems in terms of security. Defense network uses dedicated line isolated with internet and secure data through network level encoding. It is vulerable to get attack during war game exercise or from credited network. System security is also subject to reinforced. This research is performed focusing on network and system level securities, and through it, the author will show the effective and optimized security solution for war game system.

• Carbon letters
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• v.16 no.3
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• pp.192-197
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• 2015

In the present work, we propose a molecule (C₁₄H₁₄) that can be used as a building block of hexagonal diamond-type crystals and nanocrystals, including wurtzite structures. This molecule and its combined blocks are similar to diamondoid molecules that are used as building blocks of cubic diamond crystals and nanocrystals. The hexagonal part of this molecule is included in the C₁₂ central part of this molecule. This part can be repeated to increase the ratio of hexagonal to cubic diamond and other structures. The calculated energy gap of these molecules (called hereafter wurtzoids) shows the expected trend of gaps that are less than that of cubic diamondoid structures. The calculated binding energy per atom shows that wurtzoids are tighter structures than diamondoids. Distribution of angles and bonds manifest the main differences between hexagonal and cubic diamond-type structures. Charge transfer, infrared, nuclear magnetic resonance and ultraviolet-visible spectra are investigated to identify the main spectroscopic differences between hexagonal and cubic structures at the molecular and nanoscale. Natural bond orbital population analysis shows that the bonding of the present wurtzoids and diamondoids differs from ideal sp³ bonding. The bonding for carbon valence orbitals is in the range (2s^0.982p^3.213p^0.02)-(2s^0.942p^3.313p^0.02) for wurtzoid and (2s^0.932p^3.293p^0.01)-(2s^0.992p^3.443p^0.01) for diamantane.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.18
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• pp.7725-7730
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• 2014

Hepatocellular carcinoma (HCC) is the third most common cause for cancer death in the world, now being especially linked to chronic hepatitis C virus (HCV) infection. This case-control study consisting of 65 HCC patients and 82 patients with other malignant tumours as controls was conducted to determine the association of HCV markers with HCC. Serum of each participant was obtained for detection of HCV Ab and RNA by DNA enzyme immunoassay (DEIA). Twenty six per cent (26.0%) of HCC patients had positive anti-HCV which was significantly greater than the control group (p=0.001). HCC patients significantly have a risk of exposure to HCV infection almost 3 times than the control group (OR=2.87, 95% C.I=1.1-7). Anti-HCV seropositive rate was significantly (p=0.03) higher among old age HCC patients and increases with age. Males with HCC significantly showed to have more than 9 times risk of exposure to HCV infection (OR=9.375, 95 % CI=1.299-67.647) than females. HCV-RNA seropositive rate was (70.8%) significantly higher among HCC patients compared to (22.2%) the control group (p=0.019). The most prevalent genotype (as a single or mixed pattern of infection) was HCV-1b. This study detected a significantly higher HCV seropositive rate of antibodies and RNA in HCC patients.

• Geomechanics and Engineering
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• v.15 no.1
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• pp.695-710
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• 2018

Formation of a soil plug in an open-ended pile is a very important factor in determining the pile behavior both during driving and during static loading. The degree of soil plugging can be represented by the incremental filling ratio (IFR) which is defined as the change in the plug length to the change of the pile embedment length. The experimental tests carried out in this research contain 138 tests that are divided as follows: 36 tests for single pile, 36 tests for pile group ($2{\times}1$), 36 tests for pile group ($2{\times}2$) and 30 pile group ($2{\times}3$). All tubular piles were tested using the poorly graded sand from the city of Karbala in Iraq. The sand was prepared at three different densities using a raining technique. Different parameters are considered such as method of installation, relative density, removal of soil plug with respect to length of plug and pile length to diameter ratio. The soil plug is removed using a new device which is manufactured to remove the soil column inside open pipe piles group installed using driving and pressing device. The principle of soil plug removal depends on suction of sand inside the pile. It was concluded that the incremental filling ratio (IFR) is changed with the changing of soil state and method of installation. For driven pipe pile group, the average IFR for piles in loose is 18% and 19.5% for L/D=12 and 15, respectively, while the average of IFR for driven piles in dense sand is 30% and 20% for L/D=12 and L/D=15 respectively. For pressed method of pile installation, the average IFR for group is zero for loose and medium sand and about 5% for dense sand. The group capacity increases with the increase of IFR. For driven pile with length of 450 mm, the average IFR % is about 30.3% in dense sand, 14% in medium and 18.3% for loose sand while when the length of pile is 300 mm, the percentage equals to 20%, 17% and 19.5%, respectively.

• Asian Pacific Journal of Cancer Prevention
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• v.13 no.7
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• pp.3455-3460
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• 2012

Objectives: To report the prevalence of atypical squamous cells of undetermined significance and atypical squamous cells-cannot exclude high squamous intraepithelial lesions and to determine the possible association of Pap test results with high-risk human papillomavirus and high squamous intraepithelial lesions in women from Duhok, Iraq. Design: A prospective, observational study was conducted between January 2005 and December 2011. Overall, 596 women with a cervicovaginal Pap test showing atypical squamous cells of undetermined significance and 93 atypical squamous cells-cannot exclude high squamous intraepithelial lesion for whom pathologic follow-up was available were studied. Follow-up consisted of repeat cytology, colposcopy and histology. High risk human papillomavirus DNA testing was performed on exfoliated cervical cells from 106 women, using conventional PCR after at least 36 months from the initial Pap smear. Results: Significantly high proportions of both atypical squamous cells of undetermined significance (87.9%) and atypical squamous cells-cannot exclude high squamous intraepithelial lesion (62.4%) demonstrated no significant lesion on subsequent follow up. Low squamous intraepithelial lesions were observed in 1.7% of cases of atypical squamous cells of undetermined significance and in 5.4% of atypical squamous cells-cannot exclude high squamous intraepithelial lesion. High squamous intraepithelial lesion was demonstrated in 0.8% and 16.1% respectively. In the latter there was also one case of invasive carcinoma. High-risk HPV DNA was demonstrated in 40% of atypical squamous cells of undetermined significance and 57.1% of atypical squamous cells-cannot exclude high squamous intraepithelial lesions. Conclusions: Since both atypical squamous cells of undetermined significance and atypical squamous cells-cannot exclude high squamous intraepithelial lesion identify patients who are at an increased risk for the development of high squamous intraepithelial lesions and a considerable percentage harbor high risk-HPV, both should be retained as diagnostic categories and patients warrant a diligent follow up and testing for high risk-HPV DNA. Colposcopic evaluation and biopsy, when indicated, are a must.

• Korean Journal of Remote Sensing
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• v.36 no.1
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• pp.15-27
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• 2020

Accurate knowledge of land use/land cover (LULC) features and their relative changes over upon the time are essential for sustainable urban management. Urban sprawl growth has been always also a worldwide concern that needs to carefully monitor particularly in a developing country where unplanned building constriction has been expanding at a high rate. Recently, remotely sensed imageries with a very high spatial/spectral resolution and state of the art machine learning approaches sent the urban classification and growth monitoring to a higher level. In this research, we classified the Quickbird satellite imagery by object-based image analysis of Dempster-Shafer (OBIA-DS) for the years of 2002 and 2015 at Karbala-Iraq. The real LULC changes including, residential sprawl expansion, amongst these years, were identified via change detection procedure. In accordance with extracted features of LULC and detected trend of urban pattern, the future LULC dynamic was simulated by using land transformation model (LTM) in geospatial information system (GIS) platform. Both classification and prediction stages were successfully validated using ground control points (GCPs) through accuracy assessment metric of Kappa coefficient that indicated 0.87 and 0.91 for 2002 and 2015 classification as well as 0.79 for prediction part. Detail results revealed a substantial growth in building over fifteen years that mostly replaced by agriculture and orchard field. The prediction scenario of LULC sprawl development for 2030 revealed a substantial decline in green and agriculture land as well as an extensive increment in build-up area especially at the countryside of the city without following the residential pattern standard. The proposed method helps urban decision-makers to identify the detail temporal-spatial growth pattern of highly populated cities like Karbala. Additionally, the results of this study can be considered as a probable future map in order to design enough future social services and amenities for the local inhabitants.

• Korean journal of communication and information
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• v.40
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• pp.80-113
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• 2007

This study aims to describe the brief history of war reporting by Korea press and investigate the problems and reform measures of war coverage suggested by journalists who have experienced and covered the war. Although Korea press had 50 year war reporting history, it lacks knowhow about war reporting and systematic support for war coverage. Its main reason is that Korea press tend to dispatch war correspondents habitually without training them sufficiently. In addition, war journalists cover the war based on their environment and personal experiences. Dispatching journalists who have few experiences in war reporting to conflict region is another problem of war reporting by Korean press. To overcome these problems, Korea press need to manage journalists' pool who are well informed of or accustomed to Islam culture and region. Cultivating experts who are familiar with international issues or troubles are also necessary for vivid war reporting.

• The Research Journal of the Costume Culture
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• v.11 no.5
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• pp.778-792
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• 2003

This study is to review, in the social and cultural context, the main causes for the sportism that prevails in modern fashion, and to analyze the typical expressions in the domestic fashion. Many factors attribute to the advent of sportism such as rapid development and cultural changes toward sports, increase in leisure time and abundant opportunities, new fashion materials resulting from new technologies, emerging youth culture and increasing preference for such culture, and the postmodernism. With this background, sportism, which has been appearing in the domestic fashion, falls into 5 categories as follows based on the type of its expression. “Urban Street Sportism” is affected by the new sports culture of urban young people, which is characterized such that body line is disregarded with over-sized garment in layered style without considering T.P.O. concept. “Romantic Sportism” applies colors, fabrics and details of romantic images to sporty items, or culminates the feminine and elegant sportism by using the sporty fabrics and details along with romantic items. “Vintage Sportism” is characterized by its well-refined, high quality expression of naturally worn for long time, which is affected by the postmodernism. “Urban Utility Sportism,” which is developed with such design factors as fabrics, styles, details and colors with emphasis on their utility and functionality, explicitly accommodates the changed modern life styles particularly in urban areas. Lastly, the military image, which was developed during the Iraq War along with simultaneous anti-war activities, and the peace messages, which deliver the mankind's hope for the world peace and social wellness, formulate the “Military Sportism”.

• Journal of the Korea Society of Computer and Information
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• v.15 no.12
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• pp.247-253
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• 2010

The demand that needs 'Digital Legacy', a notion that an Internet user can transfer his private blogs, e-mail and financial assets to inheritors and party interested when he died suddenly in the accident, has been growing recently. This issue has become a social hot potato since Justine Ellsworth's father in USA sued Yahoo for the right to access his son's Yahoo e-mail account after Justine Ellsworth had died in Iraq, in November, 2004 and the problems happened to deal with suicide-related blogs and homepages when great entertainers in Korea committed suicide and soldiers' parents in the situation of warship Chonan tragedy in Korea demanded access to soldiers' homepages and e-mail accounts. The point at issue focuses on the property matters about the digital information of the deceased and the relationship between the deceased and the Internet Service Provider(ISP). This research looks into the trend of judicial precedents and laws related to the digital information of the deceased and suggests the preliminary data of the next research.