• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.6
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• pp.541-547
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• 2019

Recent developments in hacking technology are continuing to increase the number of new security vulnerabilities. Approximately 80,000 new vulnerabilities have been registered in the Common Vulnerability Enumeration (CVE) database, which is a representative vulnerability database, from 2010 to 2015, and the trend is gradually increasing in recent years. While security vulnerabilities are growing at a rapid pace, responses to security vulnerabilities are slow to respond because they rely on manual analysis. To solve this problem, there is a need for a technology that can automatically detect and patch security vulnerabilities and respond to security vulnerabilities in advance. In this paper, we propose the technology to extract the features of the vulnerability-discovery target binary through complexity analysis, and select a vulnerability-discovery strategy suitable for the feature and automatically explore the vulnerability. The proposed technology was compared to the AFL, ANGR, and Driller tools, with about 6% improvement in code coverage, about 2.4 times increase in crash count, and about 11% improvement in crash incidence.

• Journal of Korea Port Economic Association
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• v.25 no.2
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• pp.129-148
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• 2009

In 2006, the share of fisheries distribution in Busan amounted to 1.9 million ton, which was 41 percent of the whole country. In details, coastal fishery 334 thousand ton(14% of the whole country), deep sea fishery 452 thousand ton(82%), import fishery 964 thousand ton(70%), export fishery 157 thousand ton(43%) were distributed in Busan region, respectively. Recently, the share of fisheries sale through e-commerce is increasing owing to the growth of IT and competitive price of its products. and the sale share of large discount store is also on the 10% more increase owing to the effectiveness of distribution structure. Hereafter these structure changes of fisheries distribution in Busan will be more intensified. Therefore, after reflecting the change in distribution policy of Busan Fisheries, the directions of distribution policy should be established, as follows. Distribution policy to prepare for increasing of sales ratio in large discount store

• Radiation Oncology Journal
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• v.20 no.1
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• pp.62-67
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• 2002

Purpose : This study was undertaken to analyze the efficacy and sphincter preservation rate of platinum based neoadjuvant chemotherapy Plus radiotherapy versus abdominoperineal resection and Postoperative radiotherapy for anal cancer. Materials and Methods : Data of forty-two patients with anal cancer were retrospectively analyzed. Among thirty-eight patients with epidermoid histology, four patients received radiotherapy, and nineteen patients received abdominoperineal resection and adjuvant radiotherapy with or without chemotherapy $(APR+RT{\pm}CT)$, and fifteen patients received neoadjuvant chemotherapy and radiotherapy (CRT). The CRT regimen was composed of three cycles of 5-fluorouracil $(1,000\;mg/m^2\;bolus\;on\;D1\~5)$ and cisplatin $(60\;mg/m^2\;bolus\;on\;D1)$ followed by 50.4 Gy to the tumor bed and regional lymphatics over 5.5 weeks. Both inguinal lymphatics were treated with an identical dose schedule. Residual disease was treated with an additional three cycles of identical adjuvant chemotherapy. An identical dose schedule was used for post-operative radiotherapy. Median follow-up period was eighty-five months. Results : Overall five-year survival rates were $80.3\%$, 88.9 and $79.4\%$ for entire patients, $APR+RT{\pm}CT$ group, and the CRT group, respectively. No significant difference was found between the two groups (p=0.49). Anus preservation rate for the CRT group was $86.7\%$. Age (0=0.0164) and performance status (p=0.0007) were found to be significant prognostic factors by univariate analysis. Age (p=0.0426), performance status (p=0.0008), and inguinal lymph node metastasis (e=0.0093) were statistically significant prognostic factors by multivariate analysis. No case of RTOG grade 3 complication or higher was reported. Conclusion : This and other recent studies have shown that combined chemotherapy plus radiotherapy for anal cancer results in a high rate of anal sphincter preservation as well as local control and survival. Furthermore, neoadjuvant use of chemotherapy with a cisplatin based regimen rather than a concurrent regimen may lead to a decrease in complications.

• Radiation Oncology Journal
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• v.22 no.1
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• pp.25-32
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• 2004

Purpose : Evaluate the efficacies and toxicities of concurrent chemoradiotherapy (CCRT), with or without intraluminal brachytherapy (ILB), using a retrospective analysis in esophageal carcinomas with respect to survival. Materials and Methods : From April 1995 to July 2001, a total of 65 patients, diagnosed with an esophageal carcinoma, were treated by CCRT, with 21 also treated by ILB after CCRT. External radiotherapy was peformed using 6 or 10 MV X-rays, with a dose range of $46.8~\69.6$ Gy (median; 59.4). The ILB was peformed using high-dose-rate brachytherapy with Ir-192. The fractionation of ILB was 3 Gy by 4, or 5 Gy by 2 fractions. Cisplatin $(75\;mg/m^2)$ was given on each first day of weeks 1, 5, 9 and 13, and 5-FU $(1,000\;mg/m^2)$ as a continuous infusion for the first 4 days of each course. Results : The median survival time of all patients was 15 months, and the 1, 2 and 3-year survival rates were 55.4, 29.2 and $20.7\%$, respectively. The 2-year survival rates of the patients with and without ILB were 33.3 and $27.3\%$, respectively (p=0.80). The 2-year survival rates of the patients with a complete, partial and no response were 44.1, 13.8 and $0\%$, respectively (p=0.02). The response to treatment was the only significant factor affecting the overall survival from a multivariate analysis. Conclusion : This study has shown that the survival outcomes of CCRT were much better than previous results with radiotherapy alone. However, the addition of ILB after CCRT showed no advantage over that of CCRT alone.

• Journal of the Korean Society of Food Science and Nutrition
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• v.21 no.5
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• pp.509-512
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• 1992

With the annual report of National Nutrition survey, the trend of food intake of Korean is analyzed from 1969 to 1989. Total food intake is about 1,000g. The amount of plant foods intake is decreased but the amount of animal food intake is increased. Among plant foods, the consumption of cereals and grain product and starch and starch roots is decreased gradually. The degree of decreasing are evident in the amount of cereal and grain product intake, The amount of vegetable intake is kept fluctuating, but the amount of processed vegetable products intake shows an upward trend. The amount of legumes and their products, vegetables, fruits and seaweeds intake is increased each year. In addition, among animal foods, the amount of meat and products, eggs, fish and shellfish and milk and milk products intake is increased greatly.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.4
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• pp.91-99
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• 2020

This study investigated the relationships of anger expression, interpersonal relationship, and depression in nursing students. The study participants were 209 nursing students recruited from two colleges. The data were collected from questionnaires gathered between December 1st and December 20th, 2016. Data were analyzed by applying descriptive analysis, t-test, ANOVA, Pearson correlation coefficients, and multiple regression analysis, using the SPSS/WIN 19.0 program. Significant correlations were observed for anger expression, interpersonal relationship, and depression in the nursing students. The total explanation of depression was determined to be 39.0%. The anger-in explaining (β=0.506, p=0.000), anger-control explaining (β= -0.342, p=0.000), and interpersonal relationship (β= -0.286, p=0.000) were significant factors of depression. The results of this study indicate a requirement for strategies to decrease trait anger-in, and promote anger-control and interpersonal relationship among nursing students.

• Journal of Preventive Medicine and Public Health
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• v.34 no.1
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• pp.89-99
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• 2001

Objectives : To describe the characteristics of a mumps epidemic in Cheju-do, 1998 and to identify the risk factors associated with mumps infection. Methods : To estimate attack rate, previously collected data from the Nationally Notifiable Communicable Disease Reporting System and School Health Reporting System, temporarily administered by Division of Education. as well as additional surveillance data were used. In order to identify the clinical characteristics and risk factors associated with mumps, we conducted a questionnaire survey in 17 schools (9 elementary, 4 middle, and 4 high schools) among a population that included healthy students. Results : From March 3 to August 31, 2,195 cases of mumps were identified, and patients under 20 years of age accounted for 2,162 cases (attack rate 13.2, 95% CI 12.6-13.7/1,000). The attack rate for the population under 20 years of age was the highest in Nam county (44.7/1,000), nod in the 7-12 years old sub-group(>20.0/1,000). There was no sexual difference. 80.5% and 59.7% of patients presented periauricular and submandibular swelling respectively. Aseptic meningitis was a complication in 2.9% of cases, orchitis in 1.3%, epididymitis in 0.9% and oophoritis in 0.6% respectively. The overall MMR vaccination rate was 59.1% and it decreased in accordance with increasing age. In students aged 10 years old or below, household contact and MMR vaccination status was significantly associated with infection, and only among students with household contact, the risk of one dose MMR(OR=10.22, 95% CI 2.92-35.78) and non-vaccination (OR=11.62, 95% CI 1.96-68.96) was significantly greater when. compared with that of two dose vaccination. Among students aged 11 years old or above, household contact history was significantly associated and MMR vaccination status was not associated. Conclusions : Low vaccination rate and vaccine failure were thought to predispose the population for this large outbreak. To prevent sustained mumps outbreaks, a second MMR vaccination should be encouraged and catch up vaccinations should be given to elderly children who remain susceptible.

• The Journal of the Korea Contents Association
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• v.19 no.7
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• pp.412-420
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• 2019

The purpose of this study is to suggest legalization of private investigation system by giving an example of Japanese detective investigation on people who have been missing for a long time. To accomplish the research purpose, this study reviewed literature and used preceding researches on Japanese detective system to complete theoretical background. This study also identified the missing people in Korea and Japan to accomplish the research purpose. Conclusion: In Japan, about 80,000 people are reported to be missing every year. Although most of them are found on that day or within a week, some of them are not found for more than a week. There even a case where the person was missing for more than 3 years. In such case, the Japanese citizens requests detectives to find the missing person instead of depending on the police. When Japanese detectives are paid by their client, they provide the security service requested by the client. Japanese detectives receive about 100,000 yen to 700,000 yen for finding missing person and they find the missing person through investigation on voluntary or involuntary missing person. Such activities of Japanese detectives point out the necessity of introducing private investigation system in Korea. Currently, most missing people are not found in Korea. Introduction of private investigation system will help in finding the missing person, reducing the excessive workload of police, and creating jobs.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2022.09a
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• pp.46-46
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• 2022

본 연구의 목적은 약용과 식용으로서의 활용도가 높은 일당귀[Angelica acutiloba (Siebold & Zucc.) Kitagawa]의 GA₃농도에 따른 생육특성을 확인하고, 최적의 재배기술 개발 및 지속가능한 안정적인 작물생산에 대한 기초자료의 제공에 있다. 연구재료는 강원도 태백시에 위치하는 일당귀 재배농가에서 2021년 10월에 채종한 종자를 구입하였고, 영주시 풍기읍에 위치한 연구온실에서 연구를 수행하였다. 일당귀의 종자를 증류수에 48시간 침지 후 GA₃농도 4조건(50 ppm, 100 ppm, 500 ppm, 1,000 ppm)에 24시간 처리 후 72구 포트에 파종 후 출아율과 생육특성을 조사하였다. 연구결과 일당귀 종자는 16일이 경과한 시점부터 출아를 시작하였고, 500 ppm처리구에서 73.3%로 가장 높은 출아율을 나타냈다. 생육특성조사는 출아 후 40일(1차)과 80일(2차) 경과된 시점에서 총 2회를 수행하였는데 1차 생육조사에서는 주근길이와 직경을 제외한 모든 생육특성에서 처리구별 생육의 차이가 확인되지 않았으나 2차 생육조사에서는 지상부와 지하부의 모든 생육특성에서 처리구별 생육의 차이가 확인되었다. 잎수(6.3개)와 주근길이(4.26 cm)는 500 ppm처리구에서 가장 높은 생육량을 나타냈고, 지상부 높이(21.81 cm), 잎길이(9.0 cm), 잎너비(10.77 cm), 주근직경(5.71 mm)은 1,000 ppm처리구에서 가장 높은 생육량을 나타냈다. 따라서 GA₃ 처리에 따른 일당귀의 생육특성은 생육초기보다 후기로 갈수록 발현량이 높게 나타나는 것으로 판단된다. 또한 저농도의 GA₃처리보다 500-1,000 ppm 사이의 처리농도가 적합한 것으로 판단되며, 추후 일당귀의 유용성분 분석을 통한 이화학적 연구가 추가된다면 최적의 재배기술 확립을 통한 안정적인 작물 생산에 기여할 수 있을 것이라 사료된다.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.60 no.3
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• pp.318-332
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• 2015

The maize production in South-eastern Asian countries showed a continuous increase with increasing poultry-livestock from the beginning of the 1990s to early 2010. Also the need for a new variety development of each contries was increased rapidly in the same period. Single-Cross hybrid varieties have been developed and supplied from 2001 instead of multi-cross maize varieties since 1992 in Indonesia. In Cambodia, CP group is mainly manufacturing feeds with most of the forage maize from farmers who are growing its seeds from the company. Cambodian main cultivars are varieties of multinational corporations such as DK8868 from Monsanto, NK6326, NK7328 from Syngenta and CP333 from CP group including local business company. Vietnam is the main maze importing country in South-Eastern Asia which had imported 13 times scale of amount compared to exports in average from 1990 to 2011. Vietnamese government has developed a range of varieties for improving their efficiency in production, such as the LVN-10 with political investments. Their production has been reached to 80% of the total. According to the 2012 MIFAFF (Ministry for Food, Agriculture, Forestry and Fisheries) data in Korea, domestic edible maize cultivation area was approximately 15,000ha. It showed 74,399 tons of production, 3.8% of food self-sufficiency in maize and around 0.9% of grain self-sufficiency rate. The consumption of grain is mostly rely on imports in Korea. To overcome the limit of the domestic seed market and increase maize self-sufficiency, the need to develop maze varieties for world-class is increasing at present through analyzing the market trend and prospect of the seed industry in South-eastern Asia.