• 한국산학기술학회논문지
• /
• 제8권3호
• /
• pp.654-659
• /
• 2007

본 논문은 호텔기업이 많이 활용하고 있는 CRM의 운용성과를 측정하기 위한 측정 요인에 대한 연구를 하였다. 이를 위해 통계적인 방법인 요인분석(Factor Analysis)과 AHP(Analytic Hierarchy Process)분석 기법을 연계하여 분석하는 방법을 연구하였다. 요인분석은 서로 상관있는 변수들만을 그룹화하고, 상관도가 낮은 변수는 또 다른 그룹으로 묶는 결과를 도출한다. 그러나 요인분석은 요인의 분류 외에는 주요 정보를 제공하지 못한다. 그렇기 때문에 이를 극복하기 위해서 분산분석, 회귀분석 등 다른 통계분석 방법을 시도한다. 그러나 이러한 분석은 요인분석 결과와 연계되는 것이 아니라 독립적인 분석을 하게 되는 것이다. 그렇지만 호텔기업의 CRM 운용성과 분석에서는 요인의 중요도 분석이 중요하다. 따라서 AHP 분석기법을 연계하여 호텔기업의 CRM 운용 성과를 측정하기 위한 요인 분석방법에 대해 고찰하였다.

• 한국태양에너지학회 논문집
• /
• 제31권6호
• /
• pp.103-110
• /
• 2011

The aim of this study was to analysis the Heating/cooling performance and Daylighting performance of Solar Window System built in apartments. the solar window is the idea to integrate daylight as a third form of solar energy into a PV/Solar Collector system. The process of this study is as follows: 1)Solar Window system was designed through the investigation of previous paper and work. 2)The simulation program(Lightscape3.2) was used in daylighting performance analysis. the reference model of simulation was made up to analysis daylighting performance on Solar Window system. 3)The simulation program(ESP-r, Therm5.0, Window6.0) was used in energy performance analysis. the reference model of simulation was made up to analysis energy and daylighting performance on Solar Window system. 4)The Size of Simulation model for daylighting and heating/cooling energy analysis was $148.5m^2$ 5)The lighting performance analysis was carried out with various variants, such as the size and installed area of Solar Window system. 6)Energy performance simulation was carried out with various variants, such as Integrated U-value of Solar Window system according to its position, installed angle and insulation thickness. Consequently, When Solar Window system is equipped with balcony window of Apartment, Annual heating and cooling energy of reference model was cut down at the average of $4.1kWh/m^2$ or 4.2%.

• Journal of Positioning, Navigation, and Timing
• /
• 제12권3호
• /
• pp.229-236
• /
• 2023

As the importance and dependency of the positioning, navigation, and timing (PNT) information provided by the radio navigation satellite service (RNSS) increases, the vulnerability of RNSS to jamming can lead to significant risks. The signal design under the consideration of anti-jamming performance helps to provide service which is robust to jamming environment. Therefore, it is necessary to evaluate the jamming robustness performance during the design of new signals. In this paper, we introduce figures-of-merit (FoMs) that can be used for an anti-jamming performance analysis of designed signals of interest. We then calculate the FoMs, such as the quality factor (Q factor), tolerable jamming-to-signal ratio (tolerable J/S), and range to jammer (d) for legacy RNSS signals and analyze the results. Finally, based on the results of the analysis, we derive waveform design conditions to obtain good anti-jamming performance. As a result, this paper shows that the waveforms with wide bandwidth leading to good spectral efficiency provide strong anti-jamming performance.

• KIEAE Journal
• /
• 제15권6호
• /
• pp.11-18
• /
• 2015

Purpose: The current study analyzed trends in thermal insulation performance with aging, and condensation characteristics caused by the former. Method: Thermal insulation and condensation prevention performance of an architecture were assessed using Temperature Difference Ration Inside, or TDRi. Subjects of this quantitative analysis in thermal insulation performance change due to aging included recently constructed apartments and aged apartments older than 40 years. Time series comparison and analysis were conducted to observed changes in the thermal insulation performance and condensation characteristics. Result: Analysis showed that wall insulation performance degraded with aging regardless of fortified insulating material usage or insulating material type, which caused increased danger of condensation. In addition, when fortified insulating material was installed on the connection between the walls, insulation performance degradation was lower compared to cases in which fortified materials were not used. In all cases from 1 to 10, the rate of thermal insulation performance degradation increased after 20 years of aging.

• 한국의류산업학회지
• /
• 제12권2호
• /
• pp.172-178
• /
• 2010

The purpose of this study was to explore relationships among technology development strategy, marketing competence, knowledge management competence, and company performance of textile and clothing companies. Survey data collected from 187 employees in the textile and clothing companies were analyzed by descriptive statistics, factor analysis, reliability analysis, correlation analysis, and multiple regression analysis. In results, certain levels of correlations were found among technological development strategy, marketing competence, knowledge management competence, and company performance. Specifically, technological gap which was one of the technology development strategy factors was a variable significantly affecting innovation performance and financial performance of textile and clothing companies. Knowledge management competence affected innovation performance whereas marketing competence affected financial competence of textile and clothing companies.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
• /
• pp.1860-1863
• /
• 1997

Transfer alignement is the process of initializing attitude of slave INS using the data of master INS. This paper presents the performance analysis of transfer alignment at sea using convariance analysis method. Velocity & angle matching and angular rate & acceleration matching are used for analysis, and the performance of two matching methods are compared. We propose a new method for angular rate & acceleration matching. Under the assumption of accurate modeling of ship flexure, the performance of transfer alignment time and accuray is improved very much for the new method.

• 정보교육학회논문지
• /
• 제2권2호
• /
• pp.245-251
• /
• 1998

본 논문에서는 RDL/PAL 인터페이스와 사건표현식을 지원하는 성능 감시 도구를 설계하였다. RDL/PAL은 성능 감시 도구의 사건 추적층과 성능 분석층간의 인터페이스를 제공하고, 임의의 추적 양식에 접근하여 사건 데이터를 추출해낼 수 있다. 또한, 사건표현식은 일반적인 프로그래밍 언어와 유사한 형태로 구성되어 프로그래머가 원하는 성능 분석 결과를 쉽게 얻을 수 있다. 프로그래머는 본 논문에서 구현한 성능 감시 도구를 이용하여 추적 양식에 관계없이 다양한 성능 분석을 할 수 있다는 장점을 가지고 있다.

• Nuclear Engineering and Technology
• /
• 제37권2호
• /
• pp.167-176
• /
• 2005

We developed the PERUPS system to aid the on-line performance analysis for the turbine cycle of the YongGwang 3 and 4 nuclear power plants. Procedure of measurement validation is included in the performance calculation to obtain heat balance. Precision of on-line performance calculation is increased via practical modifications of standard calculation algorithms based on the PTC (Performance Test Code). The proposed system also provides useful Web-based aids for performance analysis, including performance data management, a graphic viewer for heat balance and turbine expansion lines, and synthesized reports of performance.

• 전기학회논문지
• /
• 제60권1호
• /
• pp.50-62
• /
• 2011

In this paper, analytical techniques for performance characteristics analysis of wind power generator with outer permanent magnet rotor are proposed. Furthermore, the proposed analytical techniques are validated by performance experiments of the manufactured generator. In this part, characteristic equations of losses such as copper loss, core loss are derived. Using the derived loss characteristic equations, electrical parameters obtained in [15] and d-q axes method, constant load and constant speed characteristics of wind power generator are analyzed. And then, to analyze performance of wind power system according to wind speed, d-q analysis model considering wind turbine characteristics is proposed. Finally, the obtained performance characteristics results are validated in comparison with those by experiments.