• 한국게임학회 논문지
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• 제18권1호
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• pp.95-104
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• 2018

본 연구는 미국의 블리자드社의 FPS 장르 게임 Overwatch의 루트 박스(Loot Box)의 구조를 탐구한다. 현재 최근 게임 산업 가장 큰 논란거리 중 하나는 게임 유저들이 고성능의 게임 아이템을 복권 형식으로 구입하는 "확률형 아이템"이다. 본 연구는 확률형 아이템과 비슷한 해외의 루트박스 사례를 다각적으로 탐구하여, 어떠한 구조를 지니고 있는지를 분석하고 법적인 해석을 시도한다. 이를 통해, 루트 박스 시스템의 장단점을 분석할 뿐만 아니라 국내의 확률형 아이템 문제를 위한 시사점을 제공한다.

• 대한두개안면성형외과학회지
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• 제18권3호
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• pp.149-154
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• 2017

Computer-aided surgery (CAS) started being used for head and neck reconstruction in the late 2000s. Its use represented a paradigm shift, changing the concept of head and neck reconstruction as well as mandible reconstruction. Reconstruction using CAS proceeds through 4 phases: planning, modeling, surgery, and evaluation. Thus, it can overcome a number of trial-and-error issues which may occur in the operative field and reduce surgical time. However, if it is used for oncologic surgery, it is difficult to evaluate tumor margins during tumor surgery, thereby restricting pre-surgical planning. Therefore, it is dangerous to predetermine the resection margins during the presurgical phase and the variability of the resection margins must be taken into consideration. However, it allows for the preparation of a prebending plate and planning of an osteotomy site before an operation, which are of great help. If the current problems are resolved, its applications can be greatly extended.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2014년도 추계학술대회
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• pp.91-93
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• 2014

Philippine fisheries code of 1998 (Republic Act 8550), which is enacted to achieve food security by managing, conserving and protecting fishery resources, obliges local governments to designate no less than 15% of jurisdictional municipal water as fisheries resource protection zone. Accordingly, Marine Protected Areas (MPAs) are the most extensively established as fisheries management and conservation tool and over 1,500 MPAs are reported in the Philippines. But there has been debate on the pros and cons of implementing MPAs because of the positive and negative impacts on local communities and fishermen. A dichotomous-choice contingent-valuation survey was conducted in the two municipalities of Guimaras, Philippines to investigate public opinion in debates over MPAs and to estimate willingness to pay (WTP) for MPAs to protect and conserve marine habitats for fishery resources. For the benefits and costs of MPAs, 43.6% of respondents thought the costs would be larger than the benefit, but 91% respondents voted in favor of increasing MPAs for fisheries resources as a protective measure. Finally, the estimated Turnbull lower-bound mean WTP (36.75ha) was php 493.6(US$ 11.3) per household to establish the additional MPA (36.75ha) in their municipality waters.

• 한국정보전자통신기술학회논문지
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• 제8권6호
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• pp.520-527
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• 2015

ETSI(European Telecommunications Standards Institute) EN 301 790에서는 광대역 위성망에서 제공되어야 할 두 가지 보안 서비스를 기술하고 있는데, 하나는 사용자(개체) 인증 서비스이고, 다른 하나는 사용자들 간의 데이터의 흐름이나 사용자와 관리자간의 데이터의 흐름을 악의적으로 공격하여 허락되지 않도록 불법적인 접근으로부터 데이터를 보호하는 기밀성 서비스이다. 특히, 기밀성 서비스를 제공하기 위해 ETSI에서는 NCC(Network Control Centre)와 RCST(Return Channel Satellite Terminal) 사이에 Main Key Exchange, Quick Key Exchange, 그리고 Explicit Key Exchange 세 가지 키 교환 프로토콜을 제시하고 있다. 본 논문에서는 ETSI 표준의 키 교환 프로토콜을 분석하고, 성능 분석과 성능 평가를 통하여 키 교환 프로토콜의 효율성과 장단점을 분석한다.

• 대한의생명과학회지
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• 제9권2호
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• pp.67-74
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• 2003

Viral and non-viral vectors have been used in the delivery of genetic materials into animal cells and tissues, with each approach having pros and cons. Non-viral vectors have many useful merits such as easy preparation, low immunity and size tolerance of a transgene when compared to those of viral vectors. Delivery specificity may be achieved by complex formation between receptor ligands and a non-viral vector. In the present study, non-viral vector systems are investigated in an effort to find a practical delivery means for gene therapy, Receptor-ligand interaction between transferrin-receptor and transferrin was utilized for efficient gene transfer into cancer cells. A plasmid vector, pcDNA3 (LacZ) was ligated with a small duplexed oligo fragment in which a Biotin- VN$^{TM}$ phosphoramidite was placed in the middle of the oligo. The plasmid vector labeled by biotin was then conjugated with biotin-labeled transferrin via streptavidin. This trimeric conjugates were delivered to a hepatoma cell line, HepG2. The delivery efficiency of the trimeric conjugate was 2-fold higher than that of cationic liposomes used for transfection of a plasmid vector. These results demonstrate that a plasmid vector can be efficiently transferred into cells by forming a trimeric complex of plasmid vector-linker-ligand.

• Ocean Systems Engineering
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• 제7권4호
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• pp.413-433
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• 2017

The dynamic and structural responses of a 1000-m long circular submerged floating tunnel (SFT) with both ends fixed under survival irregular-wave excitations are investigated. The floater-mooring nonlinear and elastic coupled dynamics are modeled by a time-domain numerical simulation program, OrcaFlex. Two configurations of mooring lines i.e., vertical mooring (VM) and inclined mooring (IM), and four different buoyancy-weight ratios (BWRs) are selected to compare their global performances. The result of modal analysis is included to investigate the role of the respective natural frequencies and elastic modes. The effects of various submergence depths are also checked. The envelopes of the maximum/minimum horizontal and vertical responses, accelerations, mooring tensions, and shear forces/bending moments of the entire SFT along the longitudinal direction are obtained. In addition, at the mid-section, the time series and the corresponding spectra of those parameters are also presented and analyzed. The pros and cons of the two mooring shapes and high or low BWR values are systematically analyzed and discussed. It is demonstrated that the time-domain numerical simulation of the real system including nonlinear hydro-elastic dynamics coupled with nonlinear mooring dynamics is a good method to determine various design parameters.

• 의학교육논단
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• 제14권1호
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• pp.19-24
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• 2012

The purpose of this study was to observe how Ajou University School of Medicine runs its curriculum to cultivate professionalism. The paper also proposes a plan for the next step for the school. The Patient-Doctor-Society (PDS) course, begun in 2009, can be summarized by three characteristics. First, the PDS course is an integrated curriculum that is not a one-time program for a specific grade, but a continuous program open for all medical students. Second, the PDS course is designed following the philosophy and educational goals of the institution, and the curriculum assures maximum autonomy. Third, the PDS course is 'whole person education' that provides knowledge and teaches skills and an attitude. By analyzing the pros and cons of the program through annual evaluation, leaders of the program at Ajou will continue to consider what to teach and how to do so.

• Perspectives in Nursing Science
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• 제9권1호
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• pp.1-8
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• 2012

Purpose: The purpose of this study was to compare variables related to weight control between normal weight and overweight/obese female adolescents. Methods: This study is a supplementary analysis using a total of 293 female adolescents in Seoul. Data were collected through self-report questionnaires on the topics of stages of change, processes of change, and the decisional balance pertaining to weight control. Body weight and height were also measured. Results: There was a significant difference in the stages of change between the normal weight and overweight/obese groups. Of 12 processes of change, 9 processes were significantly higher in the overweight/obese group than in the normal weight groups. Also, female adolescents who were overweight or obese had significantly higher pros and eating efficacy scores comparing to those in the normal weight group. Conclusion: The findings of this study suggest that overweight/obese female adolescents, especially those in the action stage need supports to continue their weight control behaviors. In addition, a weight control program for female adolescents should emphasize their participation in physical activities in addition to their dietary control efforts.

• 농촌지도와개발
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• 제7권2호
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• pp.333-345
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• 2000

The objectives of this study were to review various aspects of society on Genetically Modified Organism(GMO) in the view point of environmental sociology. There were many assertions related to GMO, and application of biotechnology. Some people assert GMO as harmful to human health, and some people as not harmful, however, there were no proven evidences to report. Through the literature review, this study intended; 1) to identify the present condition of GMO, 2) to weigh the pros against cons of views on GMO, 3) to study an aspect of society on GMO, and 4) to assert its necessity to mark GMO or not, because citizens have a rights to know natural or GMO. Based on the conclusions of this study, following recommendations were offered: 1) To review continually the GMO in the view point of environmental sociology especially in the areas of food safety, biosafety, trade, and public research investment, and 2) further detailed studies of GMO may necessary to ensure safety to human health and environment.

• 대한안전경영과학회지
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• 제20권3호
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• pp.37-46
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• 2018

According to enhancement of roles and functions of enterprises' distribution centers, recent trend of distribution centers are specialization and diversification which have generated lots of new distribution center building or expansion of the existing ones and led attention on stock transfer importance in case of distribution center relocation. This thesis is a study for how to reduce stock transfer leadtime in order to minimize business risk and how to increase inventory accuracy when stock ownership is transferred in case of distribution center relocation, and to provide inventory accuracy management methods and inventory in/out management types, detailed definition to evaluate level for inventory accuracy management and pros/cons by inventory in/out management type assuming 'the higher inventory accuracy before stock transfer, the shorter stock transfer leadtime when distribution center is relocated'. This thesis provides detailed procedure to secure an absolute stock transfer leadtime and process to confirm hugh inventory accuracy by stakeholders which should be sloved by Task Force Team for stock transfer in case of distribution center relocation.