• 한국의류학회지
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• 제32권3호
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• pp.443-453
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• 2008

The purpose of this study was to identify the perception between real and ideal body shapes of college students and to investigate the preferred body shape of college students. The research subjects numbered one hundred forty five male and female students, aged 20 to 29, who lived in Gwangju and Chonnam province. The anthropometric data was collected including both direct and indirect measurements. The data was analyzed by mean and standard deviation, t-test, and factor analysis. The results of t-test showed the significant difference($p{\leq}.001$) between real body size and ideal body size. The result showed that male students want to have bigger chest circumference and a taller height than their real body, the research also showed that the female students want to have a narrow bust and hip width along with a taller height than real body. Regarding ideal body shape, male students pursued bigger height and want an inverted-triangle body shape. On the other hand, female students pursued bigger height and slim body shape. This study established the factors(dimension of torso, height, the side shape of torso, and shoulder shape) as the perception between real and ideal body shapes. In terms of real body, the factor analysis shows two contrasting results in which the height is the most important factor for female students, while the torso dimension is the most important factor for male students. In terms of ideal body, the height factor is the most important for both the male and female students.

• Advances in nano research
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• 제8권2호
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• pp.169-182
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• 2020

This study presents the hygro-thermo-electromagnetic mechanical vibration attributes of elastically restrained piezoelectric nanobeam considering effects of beam surface for various elastic non-ideal boundary conditions. The nonlocal Eringen theory besides the surface effects containing surface stress, surface elasticity and surface density are employed to incorporate size-dependent effects in the whole of the model and the corresponding governing equations are derived using Hamilton principle. The natural frequencies are derived with the help of differential transformation method (DTM) as a semi-analytical-numerical method. Some validations are presented between differential transform method results and peer-reviewed literature to show the accuracy and the convergence of this method. Finally, the effects of spring constants, changing nonlocal parameter, imposed electric potential, temperature rise, magnetic potential and moisture concentration are explored. These results can be beneficial to design nanostructures in diverse environments.

• 한국의류학회지
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• 제34권9호
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• pp.1558-1566
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• 2010

This study compares the body sizes of Korean and Mongolian female college students, their perceptions about body size, and body satisfaction based on similar cultural backgrounds. The subjects consisted of 164 Korean students and 171 Mongolian students from March to April, 2008. The age range was 17 to 22 years. We directly measured the body sizes of subjects and examined by questionnaire the degree of body cathexis, perceived body size, and ideal body size. Both Korean and Mongolian college students have similar body measurements but Korean college students have smaller heads, broader and slopped shoulders, and thinner arms and legs. There were insignificant differences in perceived body size for both groups; in particular they perceived that their lower body is fat or thick. However, there were differences in body satisfaction. Both groups had the lowest satisfaction rate for their lower bodies; but in all items, Korean college students had a lower body satisfaction rate than Mongolian college students even though they have thinner arms and legs. Finally, the ideal body style for both groups was a skinny body type, but Korean students preferred a much thinner body type. The body satisfaction rate is greatly affected by the ideal body than the actual body.

• 한국생활과학회지
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• 제12권5호
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• pp.777-786
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• 2003

The purpose of this study was to compare the perception of men's lower body shape in the 60s with that in the 20s. On hundred and seven men in the 60s and 178 men in the 20s participated in the survey and measurements. The results were as follows : 1. It was perceived that men in the 60s had broader girth but lighter weight than men in the 20s. The research revealed that men in the 60s was more satisfied with their lower body shape than men in the 20s. 2. It was also found that the ideal size of men in the 60s was broader in the girth of their waist and hip, shorter in their height, and lighter in their weight compared to men in the 20s. 3. It showed a difference in the satisfaction with their body shape between men in the 60s and the 20s. The satisfaction with their lower body shape of men in the 60s was more affected by their perception than by their real measured size. On the other hand, the satisfaction of men in the 20s was affected by their perception as much as by their measured size. 4. If we look at the perception and satisfaction in relation with their body types, we found that there was a difference in the girth of their waist, abdomen, hip, and weight depending on their body types. And men in the 20s showed greater differences in their perception and satisfaction depending on their body types, compared to men in the 60s. 5. The measured size of men in the 20s had greater differences depending on their body types than that of men in the 60s. On the contrary, the ideal size of men in the 60s had greater differences than that of men in the 20s.

• 정보처리학회논문지D
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• 제10D권1호
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• pp.77-84
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• 2003

팀의 규모에 관한 연구 결과 전문가들은 일반적으로 업무를 수행하는데 규모가 작은 팀이 큰 팀 보다 좋다는데 동의하고 있다. 또한, 항상 최소한의 실질적인 팀 규모를 구성하는데 목표로 하고 있다. 그러나 "작은"이 얼마를 의미하는지가 문제가 된다. 본 논문에서는 프로젝트 인도율과 인도속도와 같은 생산성 측도를 도입하여 이상적인 팀 규모를 결정하였다 300개 프로젝트를 대상으로 데이터 집합을 2개의 서브 그룹인 개발 프로젝트와 유지보수 프로젝트로 분류하였다. 실험결과 가장 성공적인 프로젝트는 최대 5명으로 수행하는 경우였으나, 본 논문은 실제 개발 된 프로젝트들을 대상으로 생산성-기반 이론을 접목시켜 이상적인 팀 규모를 판단하는 지침을 제공한다. 지침을 제공한다.

• 한국의류학회지
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• 제37권5호
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• pp.631-644
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• 2013

This study investigates the gaps between ideal and actual corporate social responsibility (CSR) by comparing levels of CSR perceptions and examining the relationship differences between CSR perception, perceived quality, and affective trust from a consumer perspective. Data from 315 adult samples were collected through a nationwide online survey. In order to compare ideal and actual CSR, the study employed the approach of latent means analysis (LMA) and multi-group comparisons within the framework of a structural equation modeling (SEM). The result of latent means comparison showed significant differences of perceptions on fashion CSR across ideal and actual contexts. Only actual economic CSR was evaluated higher than in the ideal context and the effect size of inter-management CSR was the largest among seven domains. Multi-group SEM revealed a significant discrepancy between ideal and actual CSR structural models that exhibited relationships of CSR perception, perceived quality, and affective trust. The paths from internal management and ethical CSR to perceived quality and from economic and philanthropy CSR to affective trust were different across ideal and actual contexts. Implying the understanding of consumer CSR perceptions and the mediating role of perceived quality, this study suggests that marketers narrow the gap between ideal and actual CSR.

• 한국의류학회지
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• 제28권7호
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• pp.974-982
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• 2004

The purpose of this study was to examine the influence of belief in body control on appearance satisfaction using structural equation modeling. In the structural equation model, self-esteem was included as a common predictor variable of belief in body control and appearance satisfaction, and the ideal body type and perceived body type were included as mediator variables. The data was collected from 96 female college students in the State of Washington, United States, Using AMOS 4, confirmatory factor analyses were conducted to fit the measurement models, and then the fit of the structural model was examined. The results of this study are as follows: The indirect effect of belief in body control on appearance satisfaction through its negative effect on ideal body type was significant. Yet, the direct path of belief in body control to appearance satisfaction and the indirect path through their common relationships with self-esteem were found not significant. These results indicate that higher body control belief may lead to lower appearance satisfaction due to the decreased size of ideal body type.

• 대한치과교정학회지
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• 제24권4호
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• pp.819-826
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• 1994

This study was designed to get the knowledges of the ideal arch form of the class I malocclusion patients of Koreans with first premolar extraction. The subjects consisted of 98 individuals with class I malocclusion with first premolar extraction. The results were as follows ; 1 Author found the ideal arch shape of the class I malocclusion patients with first premolar extraction. 2. Equations of ideal arch form of the class I malocclusion patients with first premolar extraction were obtained from SPSS.

• 대한수학회논문집
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• 제38권1호
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• pp.55-67
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• 2023

In this paper we obtain a new structure of a k-annihilating ideal hypergraph of a reduced ring R, by determine the order and size of a hypergraph 𝒜𝒢_k(R). Also we describe and count the degree of every nontrivial ideal of a ring R containing in vertex set 𝒜(R, k) of a hypergraph 𝒜𝒢_k(R). Furthermore, we prove the diameter of 𝒜𝒢_k(R) must be less than or equal to 2. Finally, we determine the minimal dominating set of a k-annihilating ideal hypergraph of a ring R.

• 대한기계학회논문집B
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• 제22권11호
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• pp.1635-1646
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• 1998

The present study investigated the effects of geometric parameters considered on the performance of an automotive scroll compressor by assuming ideal, semi-real and real gases for R-134a. The geometric parameters were center thickness of scroll, height of scroll and the size of discharge port. Fourth-order Runge-Kutta method was applied to solve the thermodynamic equations, leaking rate equation and the equation of motion of discharge valve for ideal, semi-real, and real gases. The volumetric and adiabatic efficiencies for semi-real and real gases differed little, but those for ideal gas differed by 18% and 25% compared with those for real gas at 2,000rpm. The volumetric efficiency changed little as the design angle of scroll (${\gamma}$) changed, but the adiabatic efficiency at ${\gamma}$ of $34^{\circ}$ was higher by 2.4% than that of $147^{\circ}$ for 2,000rpm. The volumetric and adiabatic efficiencies at scroll height of 29.8mm were higher by 1.7% and 2.8% than those of 65.8mm. The volumetric efficiency changed little as the size of discharge port changed, but the adiabatic efficiency increased a little as the size of discharge port decreased.