• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.1191-1194
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• 2004

We describe the development of an interactive aerobic training system using vision-based motion capture and multimedia technology. Unlike the traditional one-way aerobic training on TV, the proposed system allows the virtual trainer to observe and interact with the user in real-time. The system is composed of a web camera connected to a PC watching the user moves. First, the animated character on the screen makes a move, and then instructs the user to follow its movement. The system applies a robust statistical background subtraction method to extract a silhouette of the moving user from the captured video. Subsequently, principal body parts of the extracted silhouette are located using model-based approach. The motion of these body parts is then analyzed and compared with the motion of the animated character. The system provides audio feedback to the user according to the result of the motion comparison. All the animation and video processing run in real-time on a PC-based system with consumer-type camera. This proposed system is a good example of applying vision algorithms and multimedia technology for intelligent interactive home entertainment systems.

• Archives of Plastic Surgery
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• 제33권2호
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• pp.249-251
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• 2006

Human cysticercosis is an infestation with C. cellulosae, the larval stage of the tapeworm T. solium. It prevails in regions of poverty and where personal hygiene is poor. They can lodge in almost any tissue, but cysticerci are most frequently found in brain, skeletal muscle, subcutaneous tissues. We experienced a 41-year old male with $5{\times}12cm$ sized movable non tender brownish hard mass at lateral abdominal wall. The laboratory study didn't show any specific symptoms except peripheral blood eosinophilia and positive parasite ELISA screen for cysticercosis. The ultrasonogram revealed multiple ill-defined mixed echoic inflamatory lesion. Excisied cyst showed multiple severe foul-odor gelatinous subcutaneous mass. Microscopic examination disclosed necrotic body with foreign body reaction, massive eosinophilia and dead parasitic organism, compatible with cysticercosis. There was no evidence of recurrence during 12 months follow-up.

• 한국정보통신학회논문지
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• 제17권5호
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• pp.1106-1112
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• 2013

키넥트는 이용자의 신체를 이용하여 게임과 엔터테인먼트를 경험할 수 있는 주변기기로 2010년 초 마이크로소프트사에서 발표하여 공개하였다. 본 논문은 키넥트에서 제공하는 세 가지 센서를 이용한 동작 인식 기능을 이용한 기타리듬 게임의 개발과 관련 기술에 대하여 다룬다. 리듬 게임은 게임의 여러 장르 중에서 매우 단순하고 학습기간이 짧으며, 신체의 활발한 활동성과 리듬성을 이용하기 때문에 피씨, 콘솔기기, 스마트폰 등 다양한 기기에서도 널리 활용되고 있는 장르이다. 본 논문에서 구현한 리듬게임은 화면구성과 게임화면을 DirectX 11버전에서 구현하였으며, 키넥트를 이용하여 게이머의 손동작 인식을 수행하기 위하여 OpenNI API를 사용하였으며 신체 움직임을 표현하기 위하여 OpenGL 라이브러리를 사용하였다.

• Journal of Yeungnam Medical Science
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• 제25권2호
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• pp.92-101
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• 2008

배경 : 울산 지역 청소년에서 자기 체형에 대한 인식이나 만족도, 식이장애 여부를 평가 하였다. 방법 : 2008년 건강검진을 목적으로 울산동 강병원을 방문한 울산지역의 초등학교 4학년, 중학교 1학년, 고등학교 1학년 학생, 총 1,501명을 대상으로 자기보고식 설문조사 방법을 통해 조사하였다. EAT-26와 체형 불만족도에 대해 조사하였으며 결과를 성별과 학년, 체질량지수로 나누어 분석하였다. 결과 : 1) 학년이 증가할수록 남녀모두 키와 몸무게, 체형에 대한 불만족도가 증가하였다. 2) 체질량지수가 증가할수록 남녀모두 몸무게와 체형에 대한 불만족도가 증가하였다. 3) EAT-26점수와 식이 장애 고위험군의 비율이 남자보다 여자가 높았다. 결론 : 여자에서 체중이나 체형에 대한 불만족의 비율이 높고 자신을 뚱뚱하게 생각하고 있었으며, 식이 장애 고위험군이 여자에게서 어린 나이에 나타나는 경향이 있어, 식이장애 고위험군의 조기 발견 및 지속적인 추적관찰이 필요하다고 생각된다.

• Animal cells and systems
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• 제2권1호
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• pp.123-131
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• 1998

The unc-29 region on the chromosome I of Caenorhabditis elegans has been mutagenized in order to obtain lethal mutations. In this screen, the uncoordinated phenotype of unc-29 (e193) mutant was used to identify any lethal mutations closely linked to the unc-29 gene, which encodes a subunit of nicotinic acetylcholine receptors. We have isolated six independent mutations (jh1 to jh6) out of approximately 5,200 ethyl methanesulfonate(EMS) treated haploids. Four of the six mutations demonstrated embryonic lethal phenotypes, while the other two showed embryonic and larval lethal phenotypes. Terminal phenotypes observed in two mutations (jh1 and jh2) indicated developmental defects specific to posterior part of embryos which appeared similar to the phenotypes observed in nob (no back end) mutants. Another mutation (jh4) resulted in an interesting phenotype of body-wall muscle degeneration at larval stage. These mutations were mapped by using three-factor crosses and deficiency mutants in this region. Here we report genetic analysis and characterization of these lethal mutations.

• 한국재료학회지
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• 제11권12호
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• pp.1086-1090
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• 2001

Composition effects on microstructure and metallizing properties of the alumina sintered body were evaluated to develop the metallized alumina tubes having superior properties for electronic devices. SEM observation revealed that resultant micrographs and fractographs were varied with composition chance of additives and $SiO_2$-rich specimens showed better microstructural characteristics with uniform distribution of fine and round particles than other CaO-rich or MgO-rich ones. The resultant interfacial microstructure of the $SiO_2$-rich metallized alumina tubes also showed good metallizing properties with no defects between layers and uniform thickness of metallizing layer.

• Industrial Engineering and Management Systems
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• 제6권2호
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• pp.146-157
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• 2007

This paper discusses two algorithms for recommending notebook computer (NBC) and workstation adjustments so that the user can assume an ergonomic seated posture during NBC operation. Required input data are the user's anthropometric data and physical dimensions of the NBC and the workstation. The first algorithm is based on an assumption that there are no workstation constraints while the second algorithm considers the actual seat height and work surface height. The results from the algorithms include recommendations for adjusting the NBC (tilt angle of the NBC base unit, angle between the base and screen units, and base support height) and the workstation (heights of seat support and footrest, and distance between the body and the NBC).

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.51.2-51
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• 2001

A vehicle driving simulator is a virtual reality device which makes a human being feel as if the one drives a vehicle actually. The driving simulator is effectively used for studying interaction of a driver-vehicle and developing the vehicle system of new concepts. The driving simulator consists of a motion platform, a motion controller, a visual and audio system, a vehicle dynamic analysis system, a vehicle operation system and etc. The vehicle dynamic analysis system supervises overall operation of the simulator and also simulates dynamic motion of a multi-body vehicle model in real-time. In this paper, the main procedures to develop the driving simulator are classified by 4 parts. First, a vehicle motion platform and a motion controller, which generates realistic motion using a six degree of freedom Stewart platform driven hydraulically. Secondly, a visual system generates high fidelity visual scenes which are displayed on a screen ...

• 한국마린엔지니어링학회:학술대회논문집
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• 한국마린엔지니어링학회 2006년도 전기학술대회논문집
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• pp.201-204
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• 2006

In the side scan sonar method, use is made of the back-scattering, at low grazing angles of incidence to the seabed, of relatively high-frequency acoustic waves radiated in a fan-shaped beam from a transducer contained in a towed body. The fan beam is oriented so that the wider angle is in the vertical plane (scan range) and the narrower angle in the horizontal plane (beam width) with the axis of the beam normal to the ship track. The display of the returns is usually realized as a series of closely spaced intensity-modulated lines on a paper recorder or computer screen display. In this way a two-dimensional picture of the seabed is build up.

• Bulletin of the Korean Chemical Society
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• 제31권11호
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• pp.3318-3326
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• 2010

Five new series of 3,4-ethylenedioxythiophene derivatives carrying important pharamacophores, viz., amide, ester, ether and active secondary aryl moieties have been designed and synthesized through multistep reactions starting from thiodiglycolic ester and diethyl oxalate. They have been characterized by elemental and spectral data. All the target compounds have been screened for their anticonvulsant activity at three different models viz. maximal electroshock (MES), subcutaneous metrazole (scMET), and 6 Hz screen and evaluated for their neurotoxicity in rotorod model. Compound 6a emerged as lead with no neurotoxicity. All the five series of compounds are safe in the toxicity studies at the maximum dose of 300 mg/kg of body weight. Amongst the tested compounds, the ester pharmacophore with thioamide fragment has showed better activity than the other analogs.