• 인터넷정보학회논문지
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• 제5권2호
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• pp.17-31
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• 2004

본 논문에서는 PP내의 보안환경 부분 중 환경에 대한 가정문장을 작성하는 방법을 제시한다. CC에서 가정에 관련된 요구 사항을 살피고, 기존 PP들에서 실제 사용한 가정문장과 NIST의 PKB내의 가정문장을 토대로 하여 새로운 "일반 가정문장 목록"과 이를 이용한 가정문장 생성 방법을 제시하였다.방법을 제시하였다.

• 한국전자거래학회지
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• 제8권3호
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• pp.69-86
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• 2003

보호프로파일(Protection Profile PP)은 방화벽과 스마트카드와 같은 정보보호제품의 특정제품군에 대한 공통 보안기능 및 보증 요구사항 명세서라 할 수 있다. 특히, PP내의 평가대상물(Target of Evaluation : TOE) 보안환경 부분은 TOE의 물리적 환경, 보호해야할 자산 및TOE의 용도를 분석하여 가정사항, 위협 및 보안정책을 기술해야한다. 본 논문에서는 PP내의 보안환경 부분 중 위협 문장을 개발 또는 작성하는 방법을 제시한다. CC(Common Criteria)의 위협문장 작성지침과 기존의 위협관련 요구사항. 26종의 실제 PP들과 CC Tool BOX/PKB의 위협문장들을 조사 분석하였다. 이를 토대로 하여 새로운 자산의 분류체계와 위협문장 생성을 위한 잘 정의된 위협문장의 판단규칙을 제시하였다.

• 한국가정과교육학회지
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• 제8권2호
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• pp.65-79
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• 1996

This study proposes a model curriculum for Vocational Home Economics High School in the 7th Curriculum Revision. The model in the study is first drawn from the assumptions that reflect ever changing demands of industrial society for Home Economics education. Another perspective employed in the study is historical analysis that focuses on the evolution of the Vocational Home Economics Curricula from the 1st through the 6th revision. This study also employes comparative research tools for the national level comparison such as USA, Japan, Taiwan, and Korea. The proposed model curriculum in this study is concluded from those step-by-step studies as follows：1) Problem definition and design in current curriculum for Vocational Home Economics high school； 2) Needs and roles analysis of Vocational Home Economics high school for the future； and 3)Historical analysis of our curriculum revisions in the past and coparative analysis with other countries. Authors conducted this research project for 3 month period from June 15, 1996 to September 15, 1996. During this period, authors collected the data and information through those method as an extensive literature review, survey and interview, and curriculum specialist conference. The key and critical features of the proposed curriculum in the study are as follows：1) In the numbers of department, a proposed model curriculum offers 8 as opposed to 6 in the 6th revision, reflecting two additional departments of “Elderly Welfare”and “Cosmotology”. 2) In the statement of educational objectives, a model curriculum emphasizes a more concrete statement to each specific skills according to the changing societal needs. 3) In the numbers of total subject matters, there would be 40 in the new as opposed to 23 in the current curriculum. Among these changes, 17 would occurr in the newly introduced subject matters, while 11 would simply change the subject matter name. Among 40 subject matter, “Introduction to Computer” and “Home Economics in Vocational Education”would be required subject matter. 4) In the total numbers of required unit for graduation in three years, a model offers 86∼132 unit. A maximum unit for each subject matter would be 12.

• 산업경영시스템학회지
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• 제38권3호
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• pp.95-99
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• 2015

The IRR(internal rate of return) is often used by investors for the evaluation of engineering projects. Unfortunately, it has serial flaws: (1) multiple real-valued IRRs may arise; (2) complex-valued IRRs may arise; (3) the IRR is, in special cases, incompatible with the net present value (NPV) in accept/reject decisions. The efforts of management scientists and economists in providing a reliable project rate of return have generated over the decades an immense amount of contributions aiming to solve these shortcomings. Especially, multiple internal rate of returns (IRRs) have a fatal flaw when we decide to accep it or not. To solve it, some researchers came up with external rate of returns (ERRs) such as ARR (Average Rate of Return) or MIRR (MIRR, Modified Internal Rate of Return). ARR or MIRR. will also always yield the same decision for a engineering project consistent with the NPV criterion. The ERRs are to modify the procedure for computing the rate of return by making explicit and consistent assumptions about the interest rate at which intermediate receipts from projects may be invested. This reinvestment could be either in other projects or in the outside market. However, when we use traditional ERRs, a volume of capital investment is still unclear. Alternatively, the productive rate of return (PRR) can settle these problems. Generally, a rate of return is a profit on an investment over a period of time, expressed as a proportion of the original investment. The time period is typically the life of a project. The PRR is based on the full life of the engineering project. but has been annualised to project one year. And the PRR uses the effective investment instead of the original investment. This method requires that the cash flow of an engineering project must be separated into 'investment' and 'loss' to calculate the PRR value. In this paper, we proposed a tabulated form for easy calculation of the PRR by modifing the profit and loss statement, and the cash flow statement.

• The Journal of Asian Finance, Economics and Business
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• 제8권1호
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• pp.767-780
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• 2021

The purpose of this research is to analyze the effect of financial elements (asset growth, liability growth, equity growth, revenue growth, and profit growth) on stock price performance and to analyze the growth of Corporate Social Responsibility (CSR) costs as a moderating effect. The technique analysis used is regression analysis. Samples in this analysis are manufacturing firms listed on the Indonesian Stock Exchange (IDX) for the period 2014-2018. The use of regression models for hypothesis testing must fulfill several applicable assumptions such as Normality Test, Heteroscedasticity Test, Multicollinearity Test, Autocorrelation Test, Model Fit Test, Determination Coefficient Test, and Hypothesis Test. Data analysis used two research models, namely model 1 and model 2. Model 1 is without the moderating variable, and model 2 is with the moderating variable, that is, CSR cost growth. Based on the result of the regression analysis, it can be inferred that the asset, revenue, and profit growth have a positive impact on stock price results. Liabilities and equity growth do not affect stock price performance. Operating expense growth has a significant effect on price performance. CSR cost growth can moderate the effect of growth in financial statement elements on stock price performance but is not significant.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 춘계 학술발표회 초청강연 및 논문집
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• pp.343-358
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• 2008

Piles of a bridge pier are connected with a column through a pile cap(footing). Behavior of the pile foundation can be different according to the connection method between piles and the pile cap. This difference causes a change of the design method. Connection methods between pile heads and the pile cap are divided into two groups ; rigid connections and hinge connections. KHBDC(Korea Highway Bridge Design Code) has specified to use rigid connection method for the highway bridge. In the rigid connection method, maximum bending moment of a pile occurs at the pile head and this helps the pile to prevent the excessive displacement. Rigid methods are also good to improve the seismic performance. However some specifications prescribe that conservative results through investigations for both the fixed-head condition and the free-head condition should be reflected in the design. This statement may induce an over-estimated design for the bridge which have very good quality structures with casing covered drilled shafts and the PC-house contained pile cap. Because the assumption of free-head conditions (hinge connections) are unreal for the elevated pile cap system with multiple piles of the long span sea-crossing bridges. On the other hand, elastic displacement method to evaluate the pile reactions under the pile cap is not suitable for this type of bridges due to impractical assumptions. So, full modeling techniques which analyze the superstructure and the substructure simultaneously should be performed. Loads and stress state of the very large diameter drilled shaft and the pile cap for Incheon Bridge which will the longest bridge in Korea were investigated through the full modeling for rigid connection conditions.

• 구강회복응용과학지
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• 제22권4호
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• pp.329-340
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• 2006

Statement of problem: Damping of the peak force transmitted to implants has been reported by in vitro studies using impact forces on resin-veneered superstructures. Theoretical assumptions suggest that use of acrylic resin for the occlusal surfaces of a prosthesis would protect the connection between implant and bone. Therefore, the relationship between prosthesis materials and the force transmitted through the implant system also needs to be investigated under conditions that resemble the intraoral mechanical environment. Purpose: The purpose of this study was to analyze the fracture strength and modes of temporary prosthesis when a flange or occlusally extended structure were connected on the top of the abutment. Material and method: Modified abutments of winged and bulk design were made by casting the desired wax pattern which is made on the UCLA type plastic cylinder. Temporary crowns were made using templates on the modified abutments, and its fracture toughness and strain were compared to the traditional temporary prosthesis. To evaluate the effect of aging, 5.000 times of thermocycling were performed, and their result was compared to the 24hours specimen result. Results: The following conclusions were drawn from this study: 1. In the fracture toughness test, temporary crown's fracture line located next to the screw hole while modified designs with metal support showed fracture line on the metal and its propagation along the metal-resin interface. 2. Wing and bulk structure didn't show significant difference in the fracture toughness (p>0.05), but wing structure showed stress concentration on the screw hole area compared to bulk structure which showed even stress distribution. 3. In the fracture toughness test after thermocycling, wing and bulk structure showed increased or similar results in metal supported area while off-metal area and temporary crown showed decreased results. 4. In the strain measurement after thermocycling, its value increased in the temporary and bulk structure. However, wing structure showed decreased value in the loading point while increased value in the screw hole area. Conclusion: Wing type design showed compatible result to the bulk type that its application with composite resin prosthesis to the implant dentistry is considered promising.

• 정보화연구
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• 제11권4호
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• pp.393-407
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• 2014

박근혜 정부의 국가정보화 비전과 구상이 제 5차 국가정보화 기본계획(2013-2017)으로 발표된지 1년 여가 경과했음에도 불구하고 현재까지 이에 대한 비판적 검토나 논의를 찾기 힘들다. 정보화 기본계획이 이처럼 정책적 논의를 촉발시키지 못하는 무기력한 정책선언(policy statement)이 되는 이유는 통상 기본계획이 각 정책주체들이 제안하는 당위론적 정책과 전략 과제들의 무분별한 나열에 그치기 때문이다. 본 연구는 정보화 기본계획이 가진 정책적 피상성(superficiality)을 극복하는 방안으로 '인식구조' 차원의 정책분석을 제안하였다. 이를 위해 정책을 하나의 논증(argument)으로 놓고 정책 논증구조와 그 이면에 작동하는 인식론적 전제와 가정들을 포착하였다. 다음 이들을 강력한 반박논리(rebuttal)에 노출시켜 정보화 정책의 인식론적 실체를 밝히고 향후 정보화 정책 논의에 대한 함의와 시사점을 살펴보았다. 분석 결과에 따르면 현재 국가정보화 정책은 테크놀로지 공급, 소비, 성과의 세 인식론적 축을 중심으로 전개되고 있다. 테크놀로지 공급에 있어서는 정부가 공공재로서의 테크놀로지 공급의 역할과 책임이 있다는 테크놀로지-공급자 전제와 테크놀로지는 그 자체로 수요를 창출한다는 테크놀로지-푸시 전제가 작동하고 있다. 테크놀로지 소비에 있어서는 테크놀로지는 사회 변화를 추동하고 주도한다는 테크놀로지-주도(driven) 사회에 대한 전제와 테크놀로지는 그 자체로 이러한 사회 변화를 결정한다는 테크놀로지 결정론적 관점이 작동하고 있다. 테크놀로지 성과에 있어서는 테크놀로지 수준이 국민복리와 국가번영을 결정한다는 테크놀로지 유토피아적 전제에 기반하고 있다. 본 연구는 이렇게 파악된 제반 인식론적 전제와 가정들을 다양한 반박논리(Rebuttal)에 노출시키고 그 정책적 함의와 시사점을 논하였다. 본 연구는 인식구조 분석이라는 새로운 정보화 정책분석 차원과 분석방법을 제시했다는데 의의가 있다. 반면 인식론적 차원의 논의가 가지는 주장의 자의성과 추상성은 본 연구의 한계로 작용한다.

• 한국지반공학회논문집
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• 제24권7호
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• pp.61-73
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• 2008

다수의 말뚝을 캡(확대기초)으로 연결하여 하중을 지지하는 다주식 기초에 대하여 캡의 연결부를 강결합 조건과 힌지결합 조건으로 구분하여 말뚝 반력 해석의 합리성을 분석하였으며, 널리 사용 중인 탄성변위법과 라멘식 프레임 해석에 기반한 비선형 해석기법을 비교하여 검토하였다. 특히 실제 해상 장대교량의 조건을 대상으로 상부구조와 기초를 연계한 전체 구조계 해석 결과를 분석하여 말뚝머리 구속 조건에 대한 기초 부재 단면력 산정의 적정성을 파악하였다. 이를 위해 캡과 연결된 각 말뚝에서 발생하는 휨모멘트, 전단력, 압축력 등 반력을 산정하고 PM상관도 분석과 지지력 산정을 통해 말뚝 부재의 안정성을 검토하였다. 일반적인 규모의 교량, 또는 강성이 크지 않은 말뚝을 적용한 기초에서는 말뚝-캡 결합 조건에 따른 말뚝 단면 설계의 차이가 현저하지 않으나, 말뚝이 지면 위로 일정 길이 이상 돌출되는 다주식 기초의 해상교량에서는 말뚝머리를 힌지로 고려할 경우 지중부에서 매우 큰 휨모멘트와 전단력이 유발되며, 말뚝머리의 수평변위량이 극단적으로 증가하였다. 해상 장대교량에 대해서는 비현실적 가정조건에 기반한 탄성변위법 보다는 말뚝머리를 캡에 강결합하고 말뚝이 탄성판에 지지된 보로 간주하는 라멘(rahmen) 모델링을 통해 상부구조와 연계한 전체 구조계 해석을 수행하는 것이 바람직하다.