• Asia Marketing Journal
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• v.6 no.3
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• pp.157-171
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• 2004

The objective of this case is to introduce KT&G's marketing strategy to go beyond its crisis. KT&G's crisis has started from tobacco which is its cash cow. Tobacco has been criticized as one of cancer causes. Until now Go and NGO suppress smoking. Its crisis is non-smoking. To live and grow beyond this crisis KT&G has 4 marketing strategies. First, they introduce new product tobacco by segmenting smoking market. Second, they want to get strong brand which has high quality, price premium, and favorable image. Third, they try to connect tobacco and bio-industry. Tobacco is very important resources of bio-industry. Finally, they is going to enter well-being market by its strength which is ginseng.

• Food Science of Animal Resources
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• v.38 no.5
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• pp.1064-1079
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• 2018

In this study, the antimicrobial activity of a bacteriocin produced by Enterococcus faecalis KT11, isolated from traditional Kargı Tulum cheese, was determined, and bacteriocin KT11 was partially characterized. The results showed that bacteriocin KT11 was antagonistically effective against various Gram-positive and Gram-negative test bacteria, including vancomycin- and/or methicillin-resistant bacteria. The activity of bacteriocin KT11 was completely abolished after treatment with proteolytic enzymes (proteinase K, ${\alpha}$-chymotrypsin, protease and trypsin), which demonstrates the proteinaceous nature of this bacteriocin. Additionally, bacteriocin KT11 remained stable at pH values ranging from 2 to 11 and after autoclaving at $121^{\circ}C$ for 30 min. In addition, the activity of bacteriocin KT11 was stable after treatment with several surfactants (EDTA, SDS, Triton X-100, Tween 80 and urea) and organic solvents (chloroform, propanol, methanol, ethyl alcohol, acetone, hexane and ethyl ether). Cell-free supernatant of E. faecalis KT11 was subjected to ammonium sulfate precipitation and then desalted by using a 3.5-kDa cut-off dialysis membrane. The bacteriocin activity was determined to be 711 AU/mL in the dialysate. After tricine-SDS-PAGE analysis, one peptide band, which had a molecular weight of ~3.5 kDa, exhibited antimicrobial activity. Because the bacteriocin KT11, isolated from E. faecalis KT11, exhibits a broad antimicrobial spectrum, heat stability and stability over a wide pH range, this bacteriocin can be used as a potential bio-preservative in foods. Additionally, bacteriocin KT11 alone or in combination with conventional antibiotics may provide a therapeutic option for the treatment of multidrug-resistant clinical pathogens after further in vivo studies.

• Journal of the Korean Society of Tobacco Science
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• v.30 no.2
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• pp.94-102
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• 2008

In this paper, we describe our study on the characterization of tobacco leaves by their pyrolysis patterns. Two kinds of tobacco leaves were pyrolyzed and analyzed by Double-Shot Pyrolysis-Gas Chromatography/Mass Spectroscopy (Py-GC/MS) methods. Three grades of Korean flue-cured tobacco leafsuch as B1O, AB3O, CD3L and burley tobacco leaves such as B1T, AB3T, CD3W were pyrolyzed with six discrete but stepwise heating temperature ranges, those are from 100$^{\circ}C$ to 150$^{\circ}C$, 150$^{\circ}C$ to 200$^{\circ}C$, 200$^{\circ}C$ to 250$^{\circ}C$, 250$^{\circ}C$ to 300$^{\circ}C$, 300$^{\circ}C$ to 350$^{\circ}C$ and finally from 350$^{\circ}C$ to 400$^{\circ}C$. Using the resultant 52 pyrolytic components identified in the programs as components, principal component analysis (PCA) showed statistical classification between flue-cured and burley tobacco lamina. Among six pyrolysis temperature ranges, the best discrimination was achieved at the temperature range from 250$^{\circ}C$ to 300$^{\circ}C$ and from 300$^{\circ}C$ to 350$^{\circ}C$.

• Childhood Kidney Diseases
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• v.21 no.2
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• pp.69-74
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• 2017

Purpose: Kidney transplantation (KT) is an ideal treatment for pediatric patients with end-stage renal disease (ESRD). We report the clinical outcomes of pediatric ESRD patients who underwent KT in a single regional center. Methods: We retrospectively investigated the medical records of 60 pediatric patients who were diagnosed with ESRD and underwent KT in our hospital between January 1985 and June 2016. Results: A total of 60 children and adolescents (40 male, 20 female; mean age, $13.86{\pm}4.26$ years) were included in this study. Six patients (10.0%) underwent KT immediately after receiving the diagnosis of ESRD, while the others underwent KT after dialysis treatment (mean period of dialysis, $368.7{\pm}4,41.8$ days). The mean donor age (50 living-related [83.3%], 10 deceased [16.7%]) was $40.0{\pm}12.85$ years and the male:female ratio was 1.07:1. The most common cause of ESRD was chronic glomerulonephritis. The overall survival rates at 1, 3, and 5 years after KT were 98%, 98%, and 96%, respectively, while the graft survival rates at 1, 3, and 5 years were 93%, 86%, and 68%, respectively. Children who underwent KT before 10 years of age had better monthly growth rates than those who underwent KT later than 10 years of age. Conclusions: KT is performed less frequently in children than in adults, but causes of ESRD vary and clinical outcomes after KT greatly affect the growth and development of pediatric patients. Therefore, further analysis and monitoring of clinical progression after KT in pediatric ESRD patients are necessary.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.46 no.2
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• pp.108-115
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• 2020

Objectives: Kinesiology tape (KT) creates a pulling force on the skin, thus improving blood and lymph flow by alleviating hemorrhage and congestion of lymphatic fluid. The authors hypothesized that the use of KT could be beneficial for the management of complications after head and neck surgery and designed this study to evaluate the effects of KT on swelling, pain, and trismus after enucleation of mandibular dentigerous cysts with third molar extraction. Materials and Methods: Forty patients who underwent enucleation of a dentigerous cyst with extraction of the mandibular third molar were selected. The patients were randomized into two groups (n=20 each): a KT group, where KT was applied after surgery in addition to basic postoperative care, and a control group, where patients received basic postoperative care without KT application. Swelling, pain, and trismus were evaluated before surgery (T0) and on postoperative days 1 (T1), 2 (T2), and 3 (T3). Cyst volume, gauze weight for assessing bleeding, and operation time were recorded. Results: There was a significant difference between the two groups in the change in swelling up to T1 and the change in swelling between T1 and T2. The maximum swelling in the KT group was significantly less than that in the No-KT group and maximum swelling appeared faster in the KT group than in the No-KT group. Both groups showed a mild pain response but there was no significant difference between the two groups. There was no significant difference on interincisal distance change between the two groups. There were no correlations between cyst volume, bleeding, operation time, and maximum swelling. Conclusion: KT can effectively manage facial swelling after oral and maxillofacial surgeries such as cyst enucleation and third molar extraction, thus improving postoperative patient satisfaction levels and quality of life.

• Journal of the Korean Society of Tobacco Science
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• v.31 no.1
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• pp.18-28
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• 2009

This study describes the manufacturing method of antioxidant filter and evaluate the reduction of free radical and biological activity from mainstream smoke. When we used spray-brush for the application of antioxidant solution to the filter, cv(coefficient of variation) levels of antioxidant added to filter ranged within 3 %, which means stable and constant feeding process. 0.3~0.5mg per cigarette of antioxidant were sprayed to acetate and active carbon part in the filter plug, respectively. It was considered that the use of antioxidant added filter resulted in the reduction of the gaseous compounds of free radicals from 17 % to 19 % in the mainstream smoke. Variation for removal efficiency of free radical in antioxidant filter added to acetate part was more pronounced than that of filter added to active carbon part. Smoking deliveries of tar, nicotine for the antioxidant added filters were similar when comparing to the non-antioxidant added filter, but the delivering amounts of isoprene were significantly reduced. The estimation of consumed GSH(glutathion) showed that the gaseous toxicity of the antioxidant added filter was 14 % ~ 23 % lower than that of non-antioxidant added filter. No significant differences were observed for the total taste quality in sensory evaluation.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2008.11a
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• pp.235-238
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• 2008

KT는 디지털 홈네트워크 사업의 일환으로 2004년 셋탑 기반의 홈엔VOD서비스를 제공한 바 있으며, IP망을 통한 방송서비스의 기반을 마련하기 위해 가입자단까지 IP-멀티캐스팅이 가능한 장비로 교체하여 BcN시범사업의 일환으로 KT CAST 서비스를 제공한 바 있다. 그리고 2006년에는 IPTV사업자로 선정되어 2007년 7월 VOD및 양방향 데이타 서비스만을 포함한 iCOD 서비스를 서울 지역을 시작으로 전국으로 확대 제공하였으며 실시간 방송에 대한 KT의 다각적인 노력의 결실로 지상파 방송서비스에 대한 정부 규제가 풀려 2008년 11월부터 지상파 실시간 방송을 포함하여 다양한 채널 방송이 가능해졌다. 본 논문에서는 일련의 KT가 준비하고 제공하였던 여러 형태의 디지털 영상서비스의 발전 단계를 소개하고 앞으로 메가TV가 나아가야 할 방향에 대하여 기술하고자 한다.

• Proceedings of the Korean Information Science Society Conference
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• 2007.10d
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• pp.550-555
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• 2007

본 논문에서는 한국통신(KT)에서 사용되는 주요 용어들을 추출하여 추출된 용어들 간의 고유성과 관계성을 기초로 한 용어 온토로지를 구축하였다. 또한 생성된 용어 온토로지를 이용한 검색질의 예를 통해서 기업의 다양한 분야를 관리하는데 도움을 줄 수 있는 방안을 모색했다. 온토로지 구축 툴로는 은토로지 에디터, Protege를 사용하였으며. 온토로지는 최상위 클래스 Organization(기관), Employee(직원), Product(상품), Technique(기술) 등 4가지로 분류하여 구축하였다. 본 연구를 기초로 한국통신(KT)의 다양한 지식정보를 체계화하고 KT 데이터베이스를 효과적으로 관리할 수 있을 것이다. 또한 구축된 온토로지를 이용한 미래의 KT 시멘틱 검색시스템 구축에 기초가 되기를 기대한다.

• The Korean Ginseng Research and Industry
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• v.2 no.1
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• pp.15-26
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• 2008

• 한국정보통신설비학회:학술대회논문집
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• 2003.08a
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• pp.373-375
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• 2003

통신사업자들은 다양한 정보서비스를 제공하기 위한 노력과 통신품질 향상을 위한 시도를 다양하게 진행하고 있으며, 우수한 품질의 서비스를 저렴하게 공급하기 위한 노력도 시도하고 있다. 본 고에서는 KT가 경영 합리화와 내부 원가절감을 위한 여러 가지 노력 중에서 투자시설 공사와 관련하여 공사원가 계산방법의 개선을 위해 새로 도입한 다양한 방법들을 살펴본다. 특히 교환시설분야에서 적용 중인 실적공사비에 의한 예정가격 산정방법을 중심으로 개념과 적용사례 분석을 하기로 한다.