• 가족자원경영과 정책
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• 제25권4호
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• pp.71-86
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• 2021

본 연구는 기혼 남성의 가사노동참여 양상의 변화를 파악하기 위해 남성의 가사노동시간의 영향 요인을 세대별로 파악하는 목적으로 한다. 이를 위해 기혼남성을 베이비붐세대, X세대, Y세대로 구분하고, 각 세대별 가사노동참여 요인을 가사노동 참여가설을 적용시켜 분석해 보았다. 자료는 통계청 '2019년 생활시간조사' 원자료를 사용하였다. 기혼남성의 가사노동시간에 영향을 미치는 요인을 분석하기 위해 다항로지스틱 분석을 실시하였다. 분석결과 베이비붐세대 기혼남성의 가사노동시간은 경제적 효율성가설과 성역할태도가설, 요구반응가능성가설에 의해 설명이 가능하고, X세대 기혼남성의 가사노동시간은 경제적 효율성가설, 성역할태도가설, 시간가용성가설, 요구반응가능성가설 모두에 의해 설명이 가능하였다. 반면, Y세대 기혼남성의 가사노동시간은 시간가용성가설과 요구반응가능성가설에 의해서만 설명이 가능하였다. 세대별로 가사노동참여의 동인이 다르다는 사실은 남성 대상 일가정양립지원 정책수립에 있어 세대별 특성을 고려해야 한다는 점을 시사해준다.

• 한국초등과학교육학회지:초등과학교육
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• 제25권3호
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• pp.257-270
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• 2006

The purpose of this study was to develop elementary students' ability to generate hypothesis knowledge through knowledge generation learning in science. The learning program consisted of a series of 28 activities to generate hypotheses in science. Eighty 6th grade students participated in the study and were divided into experimental and control groups. The experimental group was administered a program geared towards hypothesis generation learning and the control group was administered a program aimed at hypothesis expository learning in elementary science. After using the respective programs, subjects in both groups were tested in terms of their abilities in abductive knowledge generation and administered a descriptive self-report regarding their generation of hypotheses. Two of the 28 activity program worksheets in the experimental group were analyzed in terms of the quality and process of students' hypothesis generation. The results were as follows: 1) The experimental group showed significantly higher scores in terms of scientific knowledge generation (i.e. abductive knowledge generation) than the control group. 2) The degree of hypothesis explanation in the experimental group was significantly higher than in the control group in terms of the quality of the generated hypotheses. In addition, students in the experimental group generated more varied and valid knowledge than the control group in terms of sub-knowledge of hypothesis generation. Therefore, it can be argued that this program for hypothesis knowledge generation in elementary science students was effective in the generation of hypothesis knowledge.

• 한국정보시스템학회지:정보시스템연구
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• 제23권4호
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• pp.49-74
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• 2014

The introduction of smartphone caused the most revolutionary change in the domestic telecommunications market after the digital revolution. However, due to the saturation of the local market, it is expected to post negative growth in 2016 and the sales of national communication carriers is in stasis. Thus, the smartphone industry is starting to shift its marketing efforts to secure the silver generation who still has room for increase in the rate of smartphone usage. As the silver generation has physical limitations and differences in needs, the marketing strategy based on the smartphone utilization is not appropriate. This study suggests the new silver generation, who has high income level and similar characteristics to the younger generation, as the new customer segment for smartphone. We analyze the effects of the major variables of UTAUT on smartphone use, as well as examine how these relationships differ between the new silver and the net generation. We verified the hypotheses using a survey with 309 smartphone users. The research findings supported the hypotheses regarding the effects of performance expectancy, effort expectancy and facilitating conditions on smartphone use, but did not support the hypothesis on the effect of social influence. The result of the group comparisons showed that both generation have similar characteristics on innovativeness and cognitive absorption, but the moderating effect of age on performance expectancy, effort expectancy and use is stronger in conjunction with the new silver generation. The study results are expected to be used in establishing a marketing strategy for the new silver generation.

• Journal of Positioning, Navigation, and Timing
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• 제2권1호
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• pp.33-40
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• 2013

In this paper, GPS signal anomaly generation software is proposed which can be used for the analysis of GPS signal anomaly effect and the design, verification, and operation test of anomalous signal monitoring technique. For the implementation of anomalous signal generation technique, anomalous signals are generated using a commercial signal generation simulator, and their effects and characteristics are analyzed. An error model equation is proposed from the result of analysis, and the anomalous signal generation software is constructed based on this equation. The proposed anomalous signal generation software has high scalability so that users can easily utilize and apply, and is economical as the additional cost for purchasing equipment is not necessary. Also, it is capable of anomalous signal generation based on real-time signal by comparing with the commercial signal generation simulator.

• 한국CDE학회논문집
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• 제1권3호
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• pp.189-202
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• 1996

Complex geometric shapes can be defined simply and efficiently by combining and operating various surface primitives. These primitives and their intersection curves are used in finite element mesh generation to form an easy and intuitive procedure for finite element modelling of curved surfaces. This paper proposes techniques of automatic mesh generation on surface primitives with arbitrarily shaped boundaries and control curves, which may be created by surface to surface intersection. A method of automatic mesh generation on plane, which was previously developed by the author, has been modified for application to the surface mesh generation. Owing to the mesh generation-wise differences between planes and surfaces, the surfaces should be transformed into conceptual plane so that the modified plane mesh generation method can be applied. Surface development, mapping and mesh reconstruction are the key techniques suggested in this paper. The selection of the technique to apply can be determined automatically on the basis of the developability, existence of singularity and other characteristics of the surfaces on which the mesh is to be generated. The suggested techniques were implemented into parts of mesh generation functions of the finite element software, MacTran. Their validity and practicality were manifested by the actual use of this software.

• 산업공학
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• 제17권3호
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• pp.269-281
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• 2004

How to maintain the optimal electric power generation mix is one of the important problems in electric power industry. The objective of this study is to develop a computer model which can be used to forecast the investment in power generation unit by the plant owners after restructuring of electric power industry. Restructuring of electric power industry will make difference in decision making process of investment in power generation unit. After Privatiazation of Power Industry, Gencos will think that profit is the most important factor among all others attracting the investment in the industry. Coal power generation is better than LNG CCGT in terms of profit. However, many studies show that LNG CCGT will be main electric power generation source because the rest of factors other than profit in LNG CCGT are superior than Coal power generation. The impacts of the various government policies can be analyzed using the computer model, thus the government can formulate effective policies for achieving the desired electric power generation mix.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 하계학술대회 논문집 A
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• pp.6-8
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• 2002

In this paper present Autonomous Adaptive Digital Over Current Relay which acts autonomous setting using voltage and current measured by relay in the change of power systems. Automation of relay setting is required for distribution automation although manual relay setting is used at present. This paper presents Autonomous Relay Setting which knows change of the power system and acquires setting element using the Recursive Least Squares. Relay setting is very difficult work. But proposed relay is expected to decrease burden of relay setting using acquired information of power system change and autonomous setting. Also fast protective ability is expected according to change of power system.

• 한국멀티미디어학회논문지
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• 제8권9호
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• pp.1248-1257
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• 2005

본 논문은 통신보조시스템을 위한 문장생성의 구현과 설계에 관한 것이다. 통신보조시스템은 언어장애인을 위한 보조 시스템으로서 시간과 키의 수를 줄여 문장을 생성하는데 그 목적이 있다. 본 논문에서는 기존의 문장생성의 장단점을 보완하여 문장생성을 하였다. 문장생성을 위하여 동사와 조사에 따라 명사가 한정되는 한글 구조를 이용하였다. 본 논문의 특징은 도메인 개념을 이용하여 명사와 동사를 연결하였다. 문장생성을 위해 한글의 특성으로 구축한 어휘정보를 이용하였다. 또한 현재 문장생성에 관한 여러 방법을 비교하였다. 문장생성은 문장특징 추출에 의한 어휘정보에 바탕을 둔다.

• 한국초등과학교육학회지:초등과학교육
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• 제29권2호
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• pp.219-232
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• 2010

In this study, we investigated and compared the types of analogy generation processes and the perceptions of analogy generation on saturated solution of fifth grade scientifically-gifted and general elementary students. After the instruction of self-generating analogies on 'saturated solution' concept for two classes, 12 scientifically-gifted and 8 general elementary students were interviewed to explore their analogy generation processes and the perceptions of the abilities required in the processes, the conditions of good analogies, and the advantages/disadvantages of analogy generation. The results revealed that their analogy generation processes were classified into three types. The scientifically-gifted students generated the analogies in more systematic and efficient ways and had better understanding of the important parts in the processes than the general elementary students. They also suggested more concrete and various ideas about the conditions of good analogies. Many scientifically-gifted and general elementary students thought that analogy generation would have positive influences on the developments of the cognitive aspects such as various higher-level thinking abilities and understanding of science concepts as well as the affective aspects such as science learning motivation and interest. Educational implications of these findings are discussed.

• 한국항공우주학회지
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• 제37권11호
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• pp.1148-1156
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• 2009

본 논문에서는 위성항법분야에서 다양한 응용서비스와 항법알고리즘을 개발 또는 검증하기 위하 기능을 제공하기 위한 소프트웨어 기반의 GNSS 신호시뮬레이터 개발에 관한 것이다. GNSS 신호생성 시뮬레이터를 개발하기 위하여 위성궤도생성, 항법메시지생성, 오차생성, IF 신호생성부로 나누어 구현하였으며 각 기능은 서로의 인터페이스를 통하여 데이터를 전송하게 된다. 여기서 실질적인 위성신호와 유사한 IF 신호를 생성하기 위하여 본 논문에서 제안한 신호생성 알고리즘을 이용하여 신호를 생성한 후 수신기를 통하여 생성된 신호를 검증하였다.