• IEIE Transactions on Smart Processing and Computing
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• 제2권4호
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• pp.203-207
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• 2013

The appropriate handling of motion artifacts is essential for clinical diagnosis in magnetic resonance imaging (MRI). In many cases, motion is an inherent part of MR images because it is difficult to control during MR imaging. As the motion in the human body occur in a deformable manner, they are difficult to deal with. This paper proposes a novel detection method for periodically moving regions to produce MR images with less motion artifacts. When the data is acquired by the radial trajectory, the proposed method can extract the deformable region easily using the difference in the modulated sinograms, which have different periodic phase terms. The simulation results applied to the various cases confirmed the good performance of the proposed method.

• 한국유체기계학회 논문집
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• 제9권4호
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• pp.27-35
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• 2006

A Navier-Stokes code has been developed to simulate the flow through a cross flow fan. It is based on an unstructured finite volume method and uses moving grid technique to model the rotation of the fan. A low Reynolds number turbulence model is used to calculate eddy viscosity. The basic algorithm is SIMPLE. Numerical simulations over a wide range of flow rate are carried out to validate the code. Comparison of all numerical solutions with experimental data confirms the validity of the present code. Present numerical solutions show a noticeable improvement over a previous numerical method which is based on a model of body force to simulate the rotation of the impeller.

• 한국군사과학기술학회지
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• 제8권2호
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• pp.14-21
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• 2005

This paper describes the system for detecting the tank crew's(loader's) hand, arm, head and the upper half of the body in a danger area between the turret ceiling and the upper breech mechanism by computer vision-based method. This system informs danger of pressed to death to gunner and commander for the safety of operating mission. The camera mounted ort the top portion of the turret ceiling. The system sets search moving object from this image and detects by using change of image, laplacian operator and clustering algorithm in this area. It alarms the tank crews when it's judged that dangerous situation for operating mission. The result In this experiment shows that the detection rate maintains in $81{\sim}98$ percents.

• 스마트미디어저널
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• 제5권1호
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• pp.78-87
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• 2016

The major problems of recent object tracking methods are related to the inefficient detection of moving objects due to occlusions, noisy background and inconsistent body motion. This paper presents a robust method for the detection and tracking of a moving in infrared animal videos. The tracking system is based on adaptive optical flow generation, Gaussian mixture and Kalman filtering. The adaptive Gaussian model of optical flow (GMOF) is used to extract foreground and noises are removed based on the object motion. Kalman filter enables the prediction of the object position in the presence of partial occlusions, and changes the size of the animal detected automatically along the image sequence. The presented method is evaluated in various environments of unstable background because of winds, and illuminations changes. The results show that our approach is more robust to background noises and performs better than previous methods.

• Asian Journal of Innovation and Policy
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• 제12권2호
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• pp.229-245
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• 2023

This paper reviews the literature on urban sustainability with the objective of drawing more attention to the social aspect of sustainability in urban planning. Given that social capital is a crucial component of moving towards more progressive smart cities and urban innovation, it is important to investigate the social dimension of sustainability and the opportunities that just cities can bring to improve the quality of life for urban dwellers. This paper is divided into three sections. The initial section provides an introduction to urban sustainability, discussing the historical roots of sustainability and sustainable development ideas, the three fundamental elements of sustainability, and the process of defining and measuring sustainability in an urban setting. Moving on to the second section, it delves into the body of work related to linking urban sustainability with urban strategies. The third section finally addresses the emergence of literature on just sustainability and just cities, which can give valuable insights to city policymakers who are trying to improve balanced sustainability.

• 복식문화연구
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• 제14권3호
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• pp.514-527
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• 2006

It can be said that the ultimate goal of advertising is creating consumers' buying intention and buying behavior toward advertised goods. But literature suggests that ads have both intended and unintended consequences, and one of the unintended consequences is that the idealized images of physical attractiveness found in advertising have negative impact on girls' and womens' self-perceptions. Thus, this study, using social comparison theory as a framework, was designed to investigate the influences of the images of models in ads portrayed in TV and fashion magazines on the purchasing intention, self-esteem and body satisfaction of college women. Using an experimental stimulus, a moving picture representing thin and attractive models in the context of advertising fashion goods, two conditions were manipulated and the subjects were placed into one of two groups randomly, the experiment group and the control group. The experiment group only was exposed to the ads portraying highly attractive models. Data were collected from two groups using same questionnaire. The data were analyzed using t-test, two-way ANOVA, and descriptive statistics. The findings were as follows: 1. The thin and attractive image of models in ads on buying intention had significant positive influence on buying intention(p<.05). 2. The thin and attractive image of models in ads had significant negative influences on self-esteem(p<.05). 3. The thin and attractive image of models in ads had significant negative influence on body satisfaction(p<.05). 4. The ideal body internalization had significant negative influences on body satisfaction(p<.05), but interaction effect of model's image and ideal body internalization on body satisfaction was not significant.

• 한국전자통신학회논문지
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• 제6권6호
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• pp.987-991
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• 2011

본 논문에서는 인체의 운동 변화를 홈 네트워크 방식으로 측정하고 확인할 수 있는 헬스 케어 시스템을 구현하였다. 제안되는 시스템은 트레드밀 운동 또는 사이클 운동 자세에서, 그 운동의 변화에 따라 신호 전달 장치를 통하여 실시간으로 전달되는 생체 신호를 데이터 획득 장치를 통하여 얻고, 그 데이터를 분석 장치에서 논리적으로 분석하여 자세에 대한 평가를 할 수 있도록 구성하였다. 측정파라미터의 항목을 혈압(Blood Pressure), 온도(Temperature), 낙상(Fall Index), 무게분포도(WDI), 체질량지수(BMI) 등으로 함으로서 측정값을 통하여 신체적 변화정도를 확인하고, 신체의 상태를 평가할 수 있도록 감시 체제를 구성하였다.

• 약학회지
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• 제22권2호
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• pp.72-82
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• 1978

This study was undertaken establish the relationship between trypsin inhibitor in raw soybean and antinutritional effect of raw legumes. 1) Among legumes produced in Korea, Glycine max contains a relatively high amount of protein(higher than 40%) compared with kindey bean, sword bean and mung bean and, furthermore, soybean which contains a high amount of protein possesses high trypsin inhibitory activity. 2) Disc electrophoretic pattern exhibited pattern exhibited that the crude protein preparation from Glycine max produced about 9-12 protein bands, and the pattern of electrophoretic mobility was very similar to each other. However, only a few protein bands were observed from the crude protein preparation of yard long bean, sword bean, adzuki bean, mung bean and rice adzuki. From the eluate of the sliced gel, it was confirmed that among those bands, only the fastest moving band contains trypsin inhibitory activity. 3) In chicks fed the normal diet the body weight was increased steady from one week and reached to 40% increase for three weeks but in chick fed raw bean diet, there was no body weight gain until two weeks feeding and only 10-20% of body weight gain was observed at the end of three week feeding. On the other hand, in chicks fed raw bean diet the weight of pancreatic tissue per 100g body weight was increased to about two-fold for two or three weeks but there was no change in liver weight. 4) In the case of amylase secretion from the pancreatic fragment, very strong stimulation on amylase secretion from pancreatic tissue of chicks fed a normal diet was produced by one unit of cholecystokin-pancreozymin. However, no stimulation was observed from pancreatic fragment of chick fed raw bean diet.

• 한국해양공학회지
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• 제31권2호
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• pp.155-163
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• 2017

Submerged bodies moving underwater behave differently based on their type and assigned mission. This paper describes the dynamic characteristics, including the stability, turning ability, and operational ability, of submerged bodies in relation to design parameters such as the tail cone angle, shape of the control plate, and length of the parallel middle body. A submerged body operated in other countries is adopted as a reference for the dynamic characteristics, its principal dimensions and the shape of the bare hull and appendages are used for comparison. This paper suggests a few candidate hull forms based on changes in the typical design parameters. Finally, the dynamic characteristics for these candidate hull forms are defined.

• Journal of Advanced Research in Ocean Engineering
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• 제4권4호
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• pp.146-162
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• 2018

The unsteady problem of a rigid body impact onto a floating plate is studied. Both the plate and the water are at rest before impact. The plate motion is caused by the impact force transmitted to the plate through an elastic layer with viscous damping on the top of the plate. The hydrodynamic force is calculated by using the second-order model of plate impact by Iafrati and Korobkin (2011). The present study is concerned with the deceleration experienced by a rigid body during its collision with a floating object. The problem is studied also by a fully-nonlinear computational-fluid-dynamics method. The elastic layer is treated with a moving body-fitted grid, the impacting body with an immersed boundary method, and a discrete-element method is used for the contact-force model. The presence of the elastic layer between the impacting bod- ies may lead to multiple bouncing of them, if the bodies are relatively light, before their interaction is settled and they continue to penetrate together into the water. The present study is motivated by ship slamming in icy waters, and by the effect of ice conditions on conventional free-fall lifeboats.