• 융합보안논문지
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• 제20권5호
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• pp.19-26
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• 2020

본 연구의 목적은 북한의 사이버 공격과 우리의 대응에 대해 노무현 정부 부터 문재인 정부까지 정부별로 비교 분석하는 데 있다. 현재 한반도는 미국, 중국, 러시아 등 다양한 이해관계가 상충되면서 새로운 세계질서의 주도권 다툼이 사이버상에서 충돌로 이어지고 있다. 사이버 공격의 속도는 빨라지고 위협의 수위는 높아지고 있다. 사이버 위협은 몇 가지 특징을 보이고 있다. 무엇보다 위협의 주체를 확인하거나 추적하기 어렵다는 점이다. 또한 정보통신기술의 발달로 공격기술이 지능화되어 이에 대응하는 수단을 마련하기도 쉽지 않다. 따라서, 국가사이버안보를 위해 지속적이고 선제적인 대응 역량을 제고하고, 국가간 또는 민간 전문가간의 국제협력과 같은 여러 행위자간의 거버넌스 구축이 필요하다.

• Asia Marketing Journal
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• 제12권1호
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• pp.31-50
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• 2010

동조욕구와 차별화욕구라는 상반된 욕구에 의해, 소비자는 타인의 구매선택을 추종하기도 하고 회피하기도 한다. 본 연구는 동조이론과 차별화이론을 사용하여 이러한 현상을 살펴보았다. 특히, 제품유형이나 소비자특성뿐만 아니라, 선택상황(구매상황 혹은 사용상황)도 함께 고려함으로써, 소비자의 제품 선택에 있어서의 사회적 영향에 대한 기존 이론을 확장시켰다. 실험 결과, 정체성 표현과 무관한 제품(예, USB memory stick)의 경우, 사람들은 사용상황에서보다 구매상황에서 동조 행동을 보였다. 하지만, 정체성 표현과 관련된 제품(예, 청바지)의 경우, 소비자가 해당 제품을 정체성 표현과 관련되었다고 지각하는지 여부에 따라 선택상황의 영향이 달라졌다. 즉, 청바지가 자신의 정체성을 표현하는 제품이라고 지각하는 소비자는 사용상황에서는 차별화 행동을 구매상황에서는 동조 행동을 보인 반면, 청바지가 자신의 정체성을 표현하는 제품이라고 지각하지 않는 소비자는 선택상황의 영향을 받지 않았다.

• The Plant Pathology Journal
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• 제31권1호
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• pp.90-96
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• 2015

Garlic generally becomes coinfected with several types of viruses belonging to the Potyvirus, Carlavirus, and Allexivirus genera. These viruses produce characteristically similar symptoms, they cannot be easily identified by electron microscopy (EM) or immunological detection methods, and they are currently widespread around the world, thereby affecting crop yields and crop quality adversely. For the early and reliable detection of garlic viruses, virus-specific sets of primers, including species-specific and genus-specific primers were designed. To effectively detect the twelve different types of garlic viruses, primer mixtures were tested and divided into two independent sets for multiplex polymerase chain reaction (PCR). The multiplex PCR assays were able to detect specific targets up to the similar dilution series with monoplex reverse transcription (RT)-PCR. Seventy-two field samples collected by the Gyeongbuk Agricultural Technology Administration were analyzed by multiplex RT-PCR. All seventy two samples were infected with at least one virus, and the coinfection rate was 78%. We conclude that the simultaneous detection system developed in this study can effectively detect and differentiate mixed viral infections in garlic.

• 한국컴퓨터정보학회논문지
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• 제23권8호
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• pp.115-121
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• 2018

This study inquires into employee's intent to leave in South Korean dental clinics. A systematic research was undertaken on theories of leadership types, job satisfaction, organizational commitment and empowerment, and then interaction between these variables was verified based on quantitative data by using Structural Equation Model (SEM). The findings suggest that making improvements of empowerment, job satisfaction, and organizational commitment demand individualized consideration and charisma, the components of transformational leadership. As a way to reduce turnover intention, the role of job satisfaction and organizational commitment was more influential than that of empowerment. Also, a combination of charisma of transformational leadership and contingent reward of transactional leadership turned out to be the ideal leadership type to reduce turnover intention. Lastly, the harmony of individual goal with that of organization, apparent documentation of reward system, and stress control were recommended as practical solutions to improve organizational profitability and effectiveness and to reduce turnover rate in dental clinics.

• 한국생산제조학회지
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• 제18권4호
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• pp.348-354
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• 2009

In order to reduce the risk of roll over crash, one of the greatest risk events, National Highway Traffic Safety Administration(NHTSA) issued Notice of Proposed Rulemaking(NPRM) enhancing the safety standard on roof crush resistance, FMVSS No. 216 and changing some part of the test procedure. According to this NPRM, the boundary Gross Vehicle Weight Rating(GVWR) of the vehicles applied by this standard is extended from 2,722kg(6000 lb) to 4,536 kg(10000 lb) and the applied test force is increased from 1.5 times to 2.5 times of Unloaded Vehicle Weight (UVW). Also the current limit on the amount of roof crush, 127mm(5 inch), is replaced with a new requirement of maintaining enough headroom without touching the head of a seated 50% male dummy. In this paper, we carried out the rollover crash test on some domestic cars and investigated their safety due to the KMVSS No. 92 and the enhanced safety standard, FMVSS No. 216, respectively. The result shows that most of them can satisfy the new standards but further tests will be necessary, especially for heavier cars.

• 약학회지
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• 제58권6호
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• pp.364-370
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• 2014

The aim of this study was to find optimal ratio of herbal extracts to ameliorate ethanol-induced psychomotor alterations. Four mixtures of Laurus nobilis (L. nobilis), Rosa roxburghii (R.R.) and Opuntia ficus indica (OFI) were pretreated 30 minutes before ethanol administration in rats. Behavioral activities were evaluated. Blood ethanol and acetaldehyde levels were also measured. These effects of mixture of R.R (50 mg/kg)+OFI (100 mg/kg)+L.nobilis (100 mg/kg) were better than those of other mixtures. This mixture could be used as an effective substance to develop a functional food.

• Molecules and Cells
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• 제20권3호
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• pp.325-330
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• 2005

Ancient cattle bones were excavated from archaeological sites in Jeju, Korea. We used molecular genetic techniques to identify the species and establish its relationship to extant cattle breeds. Ancient DNA was extracted from four sources: a humerus (Gonae site, A.D. 700-800), two fragments of radius, and a tooth (Kwakji site, A.D. 0-900). The mitochondrial DNA (mtDNA) D-loop regions were cloned, sequenced, and compared with previously reported sequences of various cattle breeds (9 Asian, 8 European, and 3 African). The results revealed that these bones were of the breed, Bos taurus, and a phylogenetic tree indicated that the four cattle bones formed a monophyletic group with Jeju native black cattle. However, the patterns of sequence variation and reports from archaeological sites suggest that a few wild cattle, with a different maternal lineage, may have existed on Jeju Island. Our results will contribute to further studies of the origin of Jeju native cattle and the possible existence of local wild cattle.

• 기록학연구
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• 제65호
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• pp.47-88
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• 2020

문재인 정부가 출범하면서 새로이 기록관리 혁신이 추진되었다. 대통령기록물법을 정비하고, 그동안의 쟁점들을 해소하는 것이 필요했다. 개별 대통령기록관의 설치, 전직 대통령 열람권의 보장 등이 핵심 문제이다. 현재의 대통령기록관리는 관리자(기관)의 입장으로 수행되고 있다. 제도의 가장 큰 '고객'은 전직 대통령임에도 불구하고 관리상의 어려움을 중심으로 논의하고 있다. 기록관리는 고객 중심의 정보서비스여야 한다. 대통령기록 관리의 '핵심 고객'은 전직 대통령이다. 또 다른 중요한 문제는 대통령기록관을 국가기록원에서 분리하여 위상을 강화하는 것이다.

• Asia pacific journal of information systems
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• 제25권1호
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• pp.83-97
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• 2015

Recently, the exhibition industry has developed rapidly with the development of information technologies. Most exhibitors in an exhibition plan and deploy many events that may provide advantages to visitors as a method of effective promotion. The growth and propagation of wireless technologies is a powerful marketing tool for exhibitors. However, exhibitors still rely on domain experts who are costly and time consuming because of the manual knowledge input procedure. Moreover, it is prone to biases and errors and not suitable for managing fast-growing and tremendous amounts of data that far exceed a human's ability to comprehend. To overcome these problems, data mining technology may be a great alternative, but it needs to be fit to each exhibition. This study uses data mining technology with the Predictive Model Markup Language (PMML) to suggest a system that supports intelligent services and that improves stakeholder satisfaction. This system provides advantages to the exhibitor, show organizer, and system designer, and is first enhanced by integrating data mining technologies through the knowledge of exhibition experts. Second, using the PMML, the system can automate the process of applying data mining models to solve real-time processing problems in the exhibition environment.

• Journal of Microbiology and Biotechnology
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• 제31권1호
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• pp.137-143
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• 2021

Most cervical cancers are associated with high-risk human papillomavirus (HPV) infection. Currently, cervical cancer treatment entails surgical removal of the lesion, but treatment of infection and preventing tissue damage are issues that still remain to be addressed. Herbal medicine and biological studies have focused on developing antiviral drugs from natural sources. In this study, we analyzed the potential antiviral effects of Pinus densiflora Sieb. et Zucc. leaf extracts against HPV. The pine needle extracts from each organic solvent were analyzed for antiviral activity. The methylene chloride fraction (PN-MC) showed the highest activity against HPV pseudovirus (PV). The PN-MC extract was more effective before, rather than after treatment, and therefore represents a prophylactic intervention. Mice were pre-treated with PN-MC via genital application or oral administration, followed by a genital or subcutaneous challenge with HPV PV, respectively. The HPV challenge results showed that mice treated via genital application exhibited complete protection against HPV. In conclusion, PN-MC represents a potential topical virucide for HPV infection.