• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 1996.05a
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• pp.59-73
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• 1996

체계적 관점에서 추진기관에 요구되는 설계 제한조건의 합리적 조정에 의한 최적화 달성을 위하여 주 체계(Main System)와의 신속한 자료을 제시/교환가 요구된다. 이를 위하여 비록 많은 가정사항들이 내재해 있더라도 성능과 형상, 그리고 무게에 대한 자료을 제시할 수 있는 추진기관 설계 자동화 도구를 개발한다. 본 연구에서는 일차적으로 추진제 조성과 특성의 상관관계를 추진기관 체계와 그레인 내탄도/구조성능의 설계 관점에서 관계식화하여 제시하였다.

• 한국약용작물학회:학술대회논문집
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• 2012.05a
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• pp.129-130
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• 2012

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.863-865
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• 2022

본 프로젝트는 시간, 날씨, 미세먼지 농도, 캘린더, 뉴스 등을 포함한 기본적인 생활정보를 스마트 미러에 디스플레이 해주며 추가적으로 구글 어시스턴트를 활용해 음성인식으로 유튜브 재생, 인터넷 검색 등 다양한 기능을 내재하고 있다. 아울러 인체 감지 센서를 이용해 움직임이 감지되지 않으면 절전모드로 동작하다 움직임이 감지하면 일반 모드로 동작한다. 마지막으로 CCTV 기능을 내재하고 있어 CCTV 화면을 웹 애플리케이션을 통해 실시간 스트리밍 하며 사람 얼굴이 감지될 시 화면을 녹화하는 기능을 포함하고 있다.

• 에너지협의회보
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• s.19
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• pp.10-15
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• 1991

• 방재와보험
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• s.131
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• pp.14-16
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• 2009

• Geotechnical Engineering
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• v.13 no.6
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• pp.95-106
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• 1997

A pressuremeter is an expandable tube which is placed in the soil, and then expanded under controlled condition against the soil. From this test a pressure expansion curve of the soil can be obtained. However soil disturbance during the test has significant influence on the results of tests. A general governing equation for pressuremeter test can be theoretically derived on the basis of the hyperbolic soil model and the cavity expansion theory. The curve fitting technique was used to establish the pressure-strain curve without disturbance of soil during testing. This interpretation makes use of both the loading and unloading portions of the test. An interpretation methodology is described and illustrated with pressuremeter test data carried out in the weathered granitic soil to estimate initial shear modulus. Standard penetration test is a very common site investigation technique in Korea. Therefore the blow counts of standard penetration test are discussed by comparing them with initial shear modulus.

• Journal of Digital Convergence
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• v.14 no.5
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• pp.227-236
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• 2016

Co-creation is an important approach to innovation that uses internal and external sources for value creation. This study identified the effects of intrinsic motivation, extrinsic motivation, and the moderating effects of activation factors using multiple regression and moderated multiple regression. To this end, 181 usable questionnaires were collected and analyzed. The result of analysis showed that intrinsic motivation had the significant meaning and the moderating effects of activation factors on the relationship between extrinsic motivation and co-creation participation exist. Companies may use this result to activate the co-creation participation of the customer. The future study analyzed by survey responses in multiple layers will improve the generalization of the study.

• Journal of Digital Convergence
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• v.16 no.8
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• pp.341-349
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• 2018

This study aimed to investigate the tendency of nationalism and globalization of Korean by analyzing their emotions in sport phase. The SNS comments of newspaper articles on 2016 Brazil Olympics were selected and used to analyze types of nationalism with its emotional texts. The results were as followings; First, the words which showed nationalistic tendency represented each sport phase. Second, Korean showed strong resistant nationalism when their historical background was stimulated by the situation. Third, the most dominant type of Korean's nationalism in sport emotion was the closed. This study could be valued with the empirical approach on the sport emotion and nationalism tendency of Korean.

• International Journal of Highway Engineering
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• v.11 no.2
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• pp.239-247
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• 2009

Pipe installation following excavation of pavement and underlying-soils induces settlements, cracks and bad roughness near utility cut. This study is to use PMT and LDWT in order to evaluate stiffness and/or degree of compaction of sublayers and backfill in utility cut section because no specially designed efforts for evaluating stiffness condition of the substructures below new pavement after pipe installation are offered at this time. From test results of PMT, comparable stiffness and/or degree of compaction in recompaction process is not obtained comparing to that of the existing sublayers before excavation. Thickness of the new surface layer after pipe installation must be designed thicker than that of the existing surface layer. It is verified that LDWT comparing to PMT is effective only to get stiffness and/or degree of compaction within limited depth from surface of materials, but it is not useful to evaluate stiffness of substructures in full depth in case of utility cut.

• The Korean Journal of Applied Statistics
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• v.33 no.4
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• pp.365-377
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• 2020

We discuss latent factor regression when constructing a common structure inherent among explanatory variables to solve multicollinearity and use them as regressors to construct a linear model of a response variable. Bayesian estimation with LASSO prior of a large penalty parameter to construct a significant factor loading matrix of intrinsic interests among infinite latent structures. The estimated factor loading matrix with estimated other parameters can be inversely transformed into linear parameters of each explanatory variable and used as prediction models for new observations. We apply the proposed method to Product Service Management data of HBAT and observe that the proposed method constructs the same factors of general common factor analysis for the fixed number of factors. The calculated MSE of predicted values of Bayesian latent factor regression model is also smaller than the common factor regression model.