• 한국정보시스템학회지:정보시스템연구
• /
• 제28권2호
• /
• pp.181-200
• /
• 2019

Purpose In order to find out the influential factors to accept the mobile convenient payment service like Apple pay or Samsung Pay based on the Unified Theory of Acceptance and Use of Technology according to the type of High and Low value payments. Design/methodology/approach This research model is designed on the factors of Unified Theory of Acceptance and Use of Technology and simultaneously analysed, or performed the empirical analysis of the PLS-SEM(Partial Least Squares structural equation model) in order to forage for the association among mobile convenient payment service's features. Findings According to the empirical analysis consequence, this research confirmed that the adoption of mobile convenient payment services is influence by features on the basis of Unified Theory of Acceptance and Use of Technology, mobility, and trust. Also, this paper figure out that the behavior of an user acceptance of mobile convenient payment services according to the type of high and low value payments.

• 지적과 국토정보
• /
• 제44권1호
• /
• pp.179-194
• /
• 2014

본 연구에서는 "글로벌 공간정보관리" 전략에 대응하는 새로운 패러다임으로서 "측량 공간정보관리"를 위한 통합시스템을 연구하고 새로운 국가공간정보기반(NSDI)을 제시하는 데 목적이 있다. 이 논문에서는 우리나라의 기존 NGIS사업 및 공간정보정책을 검토하고 공공데이터 개방, 전자정부, 지구관측 등 국내외 흐름을 반영하여 대축척지도를 기반으로 하는 Bottom-up 방식으로서 NSDI의 정보영역을 수정하여 새롭게 정의하고[그림 1], 수치지도 등을 기본공간데이터와 동등한 개념으로 하여 공공-민간데이터의 공유데이터를 추가할 수 있게 하는 새로운 개념의 NSDI 모델을 제시하였다[그림 2]. 또한, 현재의 독립적인 국토교통정보화의 운영체계는 다른 부처의 응용분야(산림, 환경, 농업, 문화재 등)뿐만 아니라 국토교통부 내부인 다른 부문과의 협력체계를 강화하고 지방 중심으로 개선이 필요하다. 이에 새로운 개념의 NSDI를 국토교통부에 적용한 기관모델을 제안하고 있다[그림 3]. 새로운 국토교통부 SDI 기관모델에서는 공간정보 부문을 모든 활용 부문의 공통 기반으로 하고 데이터를 재편성하는 모델이며, 공통기반데이터를 통하여 소속기관 및 지방정부 데이터를 수직적 또는 수평적으로 연계하여 정부3.0이 가능하게 된다. 이러한 통합시스템은 국토지리정보원 기본도 데이터, 지방정부 KLIS 데이터, 지방정부 공공시설물 데이터를 모두 기본공간데이터 개념에 포함하게 되면, 현재 법령 또는 관리기관에 따라 독자적으로 운영되고 있는 모든 도면과 공부를 공통 기반(수치지도)과 통합, 연계하여 현행화할 수 있는 전략모델이다.

• 응용통계연구
• /
• 제33권6호
• /
• pp.753-762
• /
• 2020

본 연구는 대한민국 육군이 선도적으로 도입하고자 노력하고 있는 AI 면접체계의 자료를 통합 비교차 다중 분위수 회귀나무 모형(unified non-crossing multiple quantile tree; UNQRT)을 활용하여 분석한 것이다. 분위수 회귀가 일반적인 선형회귀에 비하여 많은 장점을 가지지만, 선형성 가정은 여전히 많은 현실 문제해결에 있어 지나치게 강한 가정이다. 선형성을 완화한 모형의 하나인 기존 나무모형 기반의 분위수 회귀는 추정된 분위수 함수별로 교차하는 문제와 분위수별로 나무모형을 제시하여 해석력을 저하시키는 문제가 있다. 통합 비교차 다중 분위수회귀나무 모형은 비교차 제약식을 부여한 상태로 다중 분위수 함수를 동시에 추정함으로서 분위수 함수의 교차 문제를 해결하며, 극단 분위수에서 안정된 결과를 기대할 수 있고, 하나의 통합된 나무모형을 제시하여 우수한 해석력이 있다. 본 연구에서는 통합 비교차 다중 분위수회귀나무 모형을 활용하여 육군 AI 면접체계의 결과와 기존 인사자료간 관계를 충분히 탐색하여 의미있는 다양한 결과를 도출하였다.

• Journal of information and communication convergence engineering
• /
• 제9권2호
• /
• pp.177-182
• /
• 2011

Considerations for user-centric environments are regarded as essential for the successful deployment of convergence services in BcN. Event driven service (EDS) is regarded as a typical convergence service converging different functions of multiple service providers to support user-centric environments. This paper first describes the deployment model and service scenario of EDS, a convergence service for user-centric environments in BcN. The user-centric environments stimulates the unified identifier management, namely unified identification (U-ID), to enable users to be provided convergence services without awareness of multiple providers. Then the designed structure and implementation results are given.

• The Journal of the Acoustical Society of Korea
• /
• 제25권3E호
• /
• pp.110-114
• /
• 2006

In a previous theoretical paper, we have derived a unified formula by considering 2-D coupled mode vibrations. The unified formula for electromechanical coupling coefficient of piezoelectric resonator was verified experimentally. The capacitance change near the resonant frequency was investigated to estimate the effective coupling coefficient of the resonator instead of the conventional method based on I-D model. The susceptance spectra were measured for the seven samples of piezoelectric resonator with different aspect ratio. Excellent agreement between theoretical and experimental results was obtained.

• Journal of information and communication convergence engineering
• /
• 제8권5호
• /
• pp.502-507
• /
• 2010

Event driven service (EDS) is one of such services administrating different functions of multiple service providers according to the user situation. This paper first describes the service model of EDS, a User-centric Service for multiple service provider environments over the next generation networks. The multiple provider environments stimulates the unified identifier management, namely unified identification (U-ID), to enable users to be provided network services without awareness of multiple providers. Combining these two concepts, i.e., EDS and U-ID, the designed structure of EDS with U-ID and related procedures are given. Finally, the implementation results tested on Korea Advanced Research Network (KOREN) are described.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 1995년도 Proceedings of the Korea Automation Control Conference, 10th (KACC); Seoul, Korea; 23-25 Oct. 1995
• /
• pp.51-55
• /
• 1995

An adaptive unified predictive control (UPC) algorithm is applied to a batch polymerization reactor for poly(methyl methancrylate) (PMMA) and the effects of controller parameters are investigated. Computational studies are performed for a batch polymerization system model developed in this study. A transfer function in parametric form is estimated by recursive least squares (RLS) method, and the UPC algorithm is implemented to control the reactor temperature on the basis of this transfer function. The adaptive unified predictive controller shows a better performance than the PID controller for tracking set point changes, especially in the latter part of reaction course when gel effect becomes significant. Various performance can be acquired by selecting adequate values for parameters of the adaptive unified predictive controller; in other words, the optimal set of parameters exists for a given set of reaction conditions and control objective.

• Steel and Composite Structures
• /
• 제37권1호
• /
• pp.37-49
• /
• 2020

In this paper, free vibration finite element analysis of axially moving laminated composite beams subjected to axial tension is studied. It is assumed that the beam has a constant axial velocity and is subject to uniform axial tension. The analysis is based on higher-order theories that have been presented by Carrera Unified Formulation (CUF). In the CUF technique, the three dimensional (3D) displacement fields are expressed as the approximation of the arbitrary order of the displacement unknowns over the cross-section. This higher-order expansion is considered in equivalent single layer (ESL) model. The governing equations of motion are obtained via Hamilton's principle. Finally, several numerical examples are presented and the effect of the ply-angle, travelling speed and axial tension on the natural frequencies and beam stability are demonstrated.

• 대한전기학회논문지:전기기기및에너지변환시스템부문B
• /
• 제54권9호
• /
• pp.422-430
• /
• 2005

This paper describes experimental analysis of UPFC, which is composed of cascaded H-bridge modules and single-phase multi-winding transformers for isolation. The operational characteristic was analyzed through experimental works with a scaled model, and simulation results with PSCAD/EMTDC. The UPFC proposed in this paper can be directly connected to the transmission line without series injection transformers. It has flexibility to expand the operation voltage by increasing the number of H-bridge modules. The analysis results can be utilized to design the actual WFC system applicable for the transmission system.

• 전기학회논문지P
• /
• 제55권2호
• /
• pp.94-102
• /
• 2006

This paper describes experimental analysis of UPQC, which is composed of cascaded H-bridges and single-phase multi-winding transformers. The operational characteristic was analyzed through experimental works with a scaled model, and simulations with PSCAD/EMTDC. The UPQC proposed in this paper can be directly connected to the distribution line without series injection transformers. It has flexibility to expand the operation voltage by increasing the number of H-bridge modules. The analysis results can be utilized to design the actual UPQC system applicable for the actual distribution system.