• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2009년도 하계학술발표대회 논문집
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• pp.556-560
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• 2009

In this paper, two different types of natural gas liquefaction process are simulated and designed for secure a competitiveness in the industry of natural gas liquefaction plant. These processes are based on basic cascade process, and one of these is improved with two staged intercooler and the other is modified two staged intercooler. These processes are compared characteristics of performance with basic process. COP of cascade process with two staged intercooler and modified two staged intercooler showed about 13.74% and 21.64% higher than basic process, and yield efficiency of modified process improved comparing with the basic process by 25.93% lower specific power, respectively.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2007년도 추계학술대회 논문집
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• pp.323-326
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• 2007

In this paper, the basic experiment, electrolytic cell design and basic manufacturing have been made to interpret the characteristics of Hydrogen-Oxygen-Gas-Generator. As for the detailed matters, the data research on basic technology on Hydrogen-Oxygen-Gas and analysis on characteristics of Hydrogen-Oxygen-Gas from basic experiment. Also the experiment of characteristics and comparative evaluation between constant current source using SCR converter from existing method and constant current source using new phase shift PWM control method converter. As results when it has injected constant DC current, we has compared Gas quantities by variable ripple frequencies using phase shift PWM control method converter. Therefore, in linear region, it has not different Gas quantities by constant DC current and by phase shift PWM control method converter. Also, it has increased Gas quantities wilder linear region when put ripple frequency at saturation region. Through, Gas quantities and input rower, it has acquired higher input power per Gas quantities at put pulse current. Therefore, when designing converter or inverter for electrolysis, which has ripple current.

• 한국의류학회지
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• 제15권3호
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• pp.309-320
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• 1991

The purpose of this study was to develope a pattern drafting method for various somatotype which contribute largely to increase the fitness and comfort of garments. This study had 8 subjects who were college girls who had prominent somatic characteristics. The study was carried out by the following procedures. 1. The 8 subjects who had prominent somatic characteristics were cheesed by photograph- ing. The somatotypes of 8 subjects were classified into Standard somatotype, Turning over somatotype, Bending somatotype and Turning over-Bending somatotype. 2. Under the criterion of the body surface development, the comparative investigation on the pattern and the sensory evaluation were accomplished in the flat pattern method and the draping pattern method. 3. The body surface development of them were made by the draping pattern method. 4. In the result of the comparative investigation and the sensory evaluation, it was found that the flat pattern had better appearance and comfort than the draping pattern, and the draping pattern included more somatic characteristics than the flat pattern. 5. On the basis of those result, the pattern drafting method according to the somatotype was indicated and it was examinated by the clothing experiment. 6. The sensory evaluation for appearance and comfort was applied to evaluate the new basic pattern for four somatotype by comparing it with the conventional basic pattern (Rim, won ja' 5). The result of the sensory evaluation, it was found that the new basic pattern was more suitable for each somatotype than the conventional basic pattern.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 학술대회 논문집 전문대학교육위원
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• pp.88-92
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• 2007

In this paper, the basic experiment, electrolytic cell design and basic manufacturing have been made to interpret the characteristics of Hydrogen-Oxygen-Gas-Generator. As for the detailed matters, the data research on basic technology on Hydrogen-Oxygen-Gas and analysis on characteristics of Hydrogen-Oxygen-Gas from basic experiment. Also the experiment of characteristics and comparative evaluation between constant current source using IGBT converter from existing method and constant current source using new phase shift PWM control method converter. As results when it has injected constant DC current, we has compared Gas quantities by variable ripple frequencies using phase shift PWM control method converter. Therefore, in linear region, it has not different Gas quantities by constant DC current and by phase shift PWM control method converter. Also, it has increased Gas quantities wilder linear region when put ripple frequency at saturation region. Through, Gas quantities and input power, it has acquired higher input power per Gas quantities at put pulse curren. Therefore, when designing converter or inverter for electrolysis, which has ripple current.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2004년도 춘계학술대회
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• pp.2163-2166
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• 2004

For designing high Tc superconductor proceeding bearing(HTSJB) which is used on a flywheel energy storage system which requests the free of the bearing loss caused by the friction, it is necessary to understand the basic characteristics of the classical superconductor proceeding bearing because the mechanical characteristics of the HTSJB are identified by the magnetic relationships between the permanent magnet(PM) and the high Tc superconductor(HTS). In this paper, using the method, frozen image model, the force problems between the PM and the HTS were solved and then the dynamic characteristics of the rotor inside of the HTSJB can be expected in advance by using the basic characteristics between the PM and the HTS. The coefficient of friction of the HTSJB was measured in the vacuum environment. From the results, the mechanical characteristics of HTSJB can be identified using the numerical models.

• 한국콘텐츠학회논문지
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• 제12권10호
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• pp.524-531
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• 2012

본 논문에서는 전문대학 학생들의 취업과 진로를 위한 기본적인 능력인 기초학습능력의 저하에 대한 개선방안에 대하여 논의한다. 기존에 제시되고 시도된 다양한 기초학습 능력 제고방안에 대한 사례 분석 및 서울지역 I 전문대학 사례를 조사하여 언어영역 학습능력에 대한 학점과의 상관관계를 분석하고 계열별 특성을 도출하여 계열에 적합한 기초학습능력 제고 방안을 제시한다. 본 연구수행을 기반으로 도출된 결과 및 시사점을 토대로 영역 및 계열에 기초한 기초학습능력 진단 및 평가관리시스템 구축 및 학생경력개발 시스템 내의 기초학습능력 미흡 학생에 대한 계열별 학생지도 방안 적용 등을 통한 본 논문 제안의 활용을 기대한다.

• 한국정밀공학회지
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• 제29권3호
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• pp.253-260
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• 2012

In nowadays, the infrared optics is frequently employed to various fields such as military, aerospace, industry and medical. To develop the infrared optics, special glasses which can transmit infrared wave are required. Ge(Germanium), Si(silicon), and fluoride glasses are typically used for material of the infrared optics. Compared with Ge and Si glasses, fluoride glasses have high transmittance in infrared wavelength range. Additionally, UV(ultraviolet) and visible light can be transmitted through fluoride glasses. There characteristics of fluoride glasses makes it possible to evaluate optical performance with generally used visible testing equipment. In this paper, we used design of experiment to find ultra precision machining characteristic of Ge and fluoride glasses and optimized machining process to obtain required form accuracy of PV(Peak to Valley) $0.2\;{\mu}m$.

• 문화기술의 융합
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• 제8권3호
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• pp.221-227
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• 2022

본 연구는 최근 십 년 동안 복지영역에서 한국사회의 주요 화두 가운데 하나였던 기본소득에 대해 살펴보고자 한다. 구체적으로 기본소득의 정의에서 시작하여 기본소득의 특성 및 기본소득이 기초하고 있는 이념적 근원을 살펴보고, 더 나아가 세계 각국에서 논의되고 있는 기본소득의 다양한 유형들에 대해 개괄적으로 소개하고자 한다. 다음으로 기본소득의 도입을 둘러싼 다양한 쟁점들을 살펴보고자 한다. 대표적인 쟁점으로는 기본소득과 기존 사회보장제도와의 관계 설정, 기본소득과 노동 공급, 기본소득의 재분배 효과 및 현실적 도입 가능성이다. 따라서 기본소득에 대한 주요한 비판의 지점을 살펴보고 향후 기본소득 논의가 지향해야 할 방향에 대해 조심스러운 결론을 내리고자 한다.

• 산업진흥연구
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• 제2권1호
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• pp.101-106
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• 2017

본 연구는 대학생의 개인적 특성이 직업기초능력 향상에 미치는 영향을 분석하였다. 연구결과 조사대상자는 대학생을 대상으로 총 73명을 분석하였다. 첫째, 대학생의 개인적 특성이 자기개발능력에 미치는 영향은 p<.001 유의수준에서 외향적성격(.423)이 자기개발능력에 유의한 영향을 미쳤다. 둘째, 내성적성격(p<.05, ${\beta}=.268$)과 외향적성격(p<.001, ${\beta}=5.862$)이 정보능력에 유의한 영향을 미쳤으며 $R^2=.389$로 38.9%의 설명력을 나타내고 있다. 셋째, 개인적 특성이 대인관계 능력에는 통계적으로 유의한 영향을 미치지 못했다. 넷째, 개인적 특성이 자기개발능력에 자기개발능력과 외향적성격(.144), 자기개발능력과 정보능력(.201), 자기개발능력과 내성적 성격(.120)이 p<.01 유의수준에서 유의한 상관관계가 있는 것으로 나타났다. 본 연구는 개인적 특성별 직업기초능력 진단을 통하여 상위집단과 하위집단간 직업기초능력에 미치는 영향을 조사함으로써 직업기초능력 향상에 영향을 미치는 효과가 있음을 확인하고 그 효과성을 검증한 데 연구의 의의가 있다.

• 대한가정학회지
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• 제47권4호
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• pp.1-10
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• 2009

Origami’s formative characteristics have been used in modern fashion design usefully. This article categorized origami expression methods by making technique as three category; producing methods, organized principles and expressive characteristics. And then, this article argued characteristics of fashion design used origami expression methods. Fashion design using origami expression methods had three characteristics; basic tailoring, decorative surface, fluidity & rhythm. The proceeding article on paper folding argued formative aspects of paper folding widely, while this study focused on origami’s basic expression methods in detail and clarified characteristics of fashion design used origami. This article’s originality existed in that point. And also a result of this study would be regarded as a important sources in design processing of fashion design.