• 한국멀티미디어학회논문지
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• 제13권1호
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• pp.66-75
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• 2010

본 논문에서는 단일 비디오카메라와 초음파센서를 이용한 스마트 에어백용 승객 감지 시스템을 제안하였다. 승객의 체형과 얼굴 위치를 검출하기 위하여, 실시간 검출이 용이한 얼굴색 및 움직임 정보를 이용한다. 비디오 카메라 영상에서 얼굴색에 해당하는 색차신호 (U/V)의 경계값과 휘도신호 (Y)의 현재 프레임과 이전 프레임간의 차이값을 이용하여 후보 얼굴 블록 영상을 만든 후 모폴로지 및 라벨링 과정을 거쳐 얼굴 위치를 검출한다. 제안한 승객 자세감지 시스템의 성능을 평가하기 위하여 차량 지그에 IEEE 카메라, 초음파 센서 및 적외선 LED를 설치하여 다양한 실험을 수행하였다.

• 한국항행학회논문지
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• 제24권1호
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• pp.9-15
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• 2020

최근 KF-X (Korean Fighter eXperimental)사업에서 AESA (Active electronically scanned array) 레이다, EO-IR (electro-optical and infrared) 및 IRST (infra-red search and track) 센서 등의 개발이 진행되고 있으며 현재 AESA 레이더는 비행 시험을 위한 사전 연구가 진행되고 있다. 본 논문은 AESA 레이다 개발에 따른 선진국의 FTB(Flying Test Bed) 항공기 운영 사례를 중점 분석하고, 이 사례를 중심으로 국내 레이다 개발 시험을 위한 비행시험 항공기의 선정 시 요구사항과 고려사항을 검토하였다. 그에 따른 우리는 FTB 항공기가 국내 환경에서 운영하기 위한 감항 관련 국내 관련 법규를 검토하고 FTB 항공기의 운영하기 위한 방안을 살펴본다. 따라서 우리는 국내 환경에 적합한 FTB 항공기 선정, 감항 및 운영 방안을 제시하고 한다.

• The Journal of Korean Physical Therapy
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• 제12권3호
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• pp.287-292
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• 2000

This studies were to investigate the effects of low power wavelengths Helium-Neon Infra-Red(He-Ne 1R) laser on the changes of the serum immunoblobulin(Ig) concentrations in bum rats, The thirty Spraque-Dawley adult male rats were assigned to the 5 groups: the experimental groups(3). the bum control group(1) and the control group(1). There was made three degree burn by the 290 mW IR on the back oreach rats, from 3 days after being burned. the experimental laser groups were irradiated low power wavelengths(292Hz- 1168Hz, 4672Hz) He-Ne IR laser far 5 minutes every day during the 7days. The results were as follows; 1. The concentrations of immunoglobulin G(Ig G) in serum of all experimental groups on the treated with the low power wavelengths of the He-Ne IR laser during the 5 minutes far 7 days were significantly lower than those of bum groups, but those 1168 Hz group were significantly higher than those of the 292 Hz and 4672 Hz groups. 2. There were significantly decreased the change of the level of immunoglobulin M(Ig M) in serum of all experimental groups on the treated with 5 minutes laser fer 7 days to the burn control group. and were significantly increased on treated with more higher wavelengths groups to those of lower groups. 3. The concentrations immunoglobulin E(Ig E) in serum of the 292Hz wavelengths groups were significantly lower than those in bum control group. As above results. the changes of the immunoglobulin in serum levels on the healing process have meaningful effected with the low power wavelengths role on the treated with He-Ne IR laser.

• 대한물리치료과학회지
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• 제10권1호
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• pp.130-139
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• 2003

This study was conducted in order to determine the effect of Paraffin Therapy on release of pain, skin temperature and range of motion with joint diseases. This study was performed on 42 patients with general joint diseases and 21 patients with degenerative joint diseases. All the subjects were randomly assigned to three groups with 21 each. The experiment had been done from June, 1. 2002 to September, 30. 2002, in two general hospitals and a social welfare center using Digital Thermometer Kane-May KM330 and VAS(visual analogue scale). Each pint was measured in terms of skin temperature, pain scale and ROM(range of motion). The results of the experiment are as follows : 1. In application of three different heat modalities (Paraffin bath, Infra red, Hydro pack) on the Knee, Ankle, Elbow pints of the subjects for 30 minutes, the elevation of skin temperature and the reduction of pain scale were found to be significantly different. When checked right after the 30 minutes' application, the Infra red resulted in a higher degree elevation of skin temperature than two other modalities, while Paraffin bath resulted in the highest degree of the elevation of skin temperature when it was checked one hour after the application was over. It means that Paraffin bath lasted longer than the other two modalities(F=14.691, p<.000). 2. With Paraffin bath application, pint pain was reduced significantly both in 30 minutes and one hour checks(F=20.675, p<.001). 3. In terms of ROM(range of motion) increase, didn't seem to have any significant differences in 30 minutes and one hour. The results suggest that Paraffin therapy be helpful in maximizing th effects on pint diseases. I strongly suggest that further studies be done on other pints and muscle diseases using Paraffin bath in different methods of applying the therapy.

• Korean Journal of Acupuncture
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• 제19권2호
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• pp.13-33
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• 2002

This study was examined for effects of acupuncture of Zusanli (ST36) on the facial thermography in health subjects. The volunteers who participating in this study had taken rest for 20 - 30 mins in room temperature (23-$25^{\circ}C$) before the examination and informed them what to prohibit smoking, drinking and administration of drug for the previous day. The thermography of face was taken using Infra-Red Imaging System (IR 2000, MEDI-CORE Co., Korea) by time interval of 15 minutes at 15 min before, just before and 15 min after, 30 min after and 45 min after acupuncture stimulation. Acupuncture was applied to the left ST36 for 30 mins. The results showed that acupuncture of ST36 significantly decreased the temperature of all the areas of facial surface comparing to those of control group. Also, it was observed that the quantities of thermal changes following acupuncture of ST36 been increased significantly at the A1, A4, A6, A7 and A9 ROIs (region of interest) comparing that of control group. Observed the thermography classified by ROI, it was clear the fact that acupuncture of ST36 could modulate the specific areas concerning to the facial pathway of Stomach Meridian, because the thermal responses following acupuncture of ST36 were specific at the A1, A2, A5 and A9 ROIs, relatively. These results suggest that acupuncture of ST36 may modulate thermal distributions and changes of facial areas concerned with Stomach Meridian.

• 한국산업정보학회논문지
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• 제23권2호
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• pp.19-28
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• 2018

본 연구에서는 함정 신호해석 연구에 필요한 해양기상환경 자료의 표본추출에 관한 연구를 수행하였다. 이를 위해 한국 기상청으로부터 품질검사가 완료된 최신의 해양 기상자료를 수집하고, 측정 자료의 가용 구간을 설정하여 이상치를 제거하였다. 품질검사와 이상치를 제거한 자료는 함정 신호의 확률론적 해석을 위해 지정학적 위협과 부이의 유효면적을 고려하여 단순임의추출법을 통해 축소되었다. 이후 표본의 크기는 모집단의 크기와 신뢰수준 95%를 고려하여 100, 200 그리고 400개로 설정하였으며, 상관관계가 높은 수온과 기온을 기준으로 하는 2차원 층화추출법으로 최종표본을 추출하였다. 추출 표본은 제곱오차의 합과 신뢰구간을 추정하고 이를 비교하여 함정의 확률론적 신호해석을 위해 필요한 해양기상조건의 크기를 제시하였다.

• The Journal of Korean Physical Therapy
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• 제12권2호
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• pp.1-6
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• 2000

This studies were to investigate the effects of low power wavelengths Helium-Neon Infra-Red(He-Ne 1R) laser on the changes of the serum mineral components in burn rats. The thirty Spraque-Dawley adult male rats were assigned to the 5 groups: the experimental groups(3), the bum control group (1) and the control group(1). There was made three degree bum by the 250mW IR on the back of each rats. from 3 days after being burned. the experimental laser groups were irradiated low power wavelengths(292 Hz. 1168Hz, 4672Hz) He-He IR laser far 5 minutes every day during the 7 days. The results were as tallows: 1. There were significantly not changes of the levels of serum sodium between all experimental groups. 2. The concentration of potassium in serum on the treated with 292Hz wavelengths group during 5 minutes were significantly increased ,but with 1168Hz wavelenghths group were decreased to the those of burn group. 3. The concentrations of serum calcium in serum 1168Hz wavelengths laser group on the treated with 5 minutes laser were significantly higher to normal level than those of bum groups. As above results. the changes of the 2 essentials mineral(calcium and potassium) in serum levels on the healing process have meaningful effected with the low power wavelengths role on the treated with He-Ne IR laser.

• Korean Journal of Acupuncture
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• 제20권4호
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• pp.1-16
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• 2003

Objectives : This study was examined for effects of acupuncture of Hyeong points' Acupuncture of Three Foot-eum Collaterals on the abdominal thermography of health subject. Methods : The volunteers who participating in this study had taken rest for 20 - 30 minutes in room temperature $(23-25^{\circ}C)$ before the examination and informed them what to prohibit smoking, drinking and administration of drug for the previous day. The thermography of abdomen including a below part of the chest was taken using Infra-Red Imaging System (IR 2000, MEDI-CORE Co., Korea) by time interval of 15 minutes at 15 minutes before, just before and 15 minutes after, 30 minutes after and 45 minutes after acupuncture stimulation. Acupuncture was applied to the left Hyeong points' Acupuncture of Three Foot-eum Collaterals for 30 minutes. Results : The results showed that acupuncture of Hyeong points had more potencies of changes on all the ROIs of abdominal thermography than those of control group. Also, it was observed that the quantities of thermal changes following acupuncture of Hyeong points been increased comparing that of control group at all the ROIs (region of interest). Observed the thermography classified by ROI, however, it was failed that acupuncture of Hyeong points could modulate the specific areas concerning to the abdominal pathway of Three Foot-eum Collaterals. Conclusions : These results suggest that acupuncture of Hyeong points may modulate thermal distributions and changes of abdominal areas including the below of chest.

• 한국약용작물학회지
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• 제18권1호
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• pp.9-14
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• 2010

Several presowing seed treatments have been used to facilitate the seed germination and seedling emergence. The study was performed to design a model of presowing seed treatments in Taraxacum platycarpum. Germination and seedling growth responses to temperature, drying, chilling, $GA_3$ and priming were investigated to know the optimum germination conditions and presowing treatment. The optimum temperature condition for germination and seedling growth were $15{\sim}20^{\circ}C$ at dark condition. The seeds exposed to infra red light, however, did not germinate. The moisture content of seeds dried at $35^{\circ}C$ for 3.5 hours was returned to the level of unimbibed seeds. The germination of seeds dried under dark condition was better than those dried under infra red light. Prechilling treatment imposed for 6 weeks showed higher germination rate than $GA_3$ treatment or priming. In field test, the highest field emergence was observed in the seeds dried after prechilled for 6 weeks and followed by drying followed by $GA_3$ > low temperature > $KNO_3$ priming. Imbibition with 0.1 mM $GA_3$ solution for 2 hours then drying at 35 for 3.5 hour under dark condition was effective to the practical presowing treatment for Taraxacum seeds.

• 대한의용생체공학회:의공학회지
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• 제37권3호
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• pp.105-111
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• 2016

Introduction: Surgical robot is the alternative instrument that substitutes the difficult and precise surgical operation; should have intuitiveness operationally to transfer natural motions. There are limitations of hand motion derived from contacting mechanical handle in the surgical robot master interface such as mechanical singularity, isotropy, coupling problems. In this paper, we will confirm and verify the feasibility of intuitive Non-restraint master interface which tracking the hand motion using infra-red camera and only 3 reflective markers without the hardware handle for the surgical robot master interface. Materials & methods: We configured S/W and H/W system; arranged 6 infra-red cameras and attached 3 reflective markers on hands for measuring 3 dimensional coordinate then we find the 7 motions of grasp, yaw, pitch, roll, px, py, pz. And we connected Virtual-Master to the slave surgical robot(Laparobot) and observed the feasibility. To verify the result of motion, we compare the result of Non-restraint master and that of clinometer (and protractor) through measuring 0~180 degree, 10degree interval, 1000 samples and recorded standard deviation stands for error rate of the value. Results: We confirmed that the average angle values of Non-restraint master interface is accurately corresponds to the result of clinometer (and protractor) and have low error rates during motion. Investigation & Conclusion: In this paper, we confirmed the feasibility and accuracy of 3D Non-restraint master interface that can offer the intuitive motion of non-contact hardware handle. As a result, we can expect the high intuitiveness, dexterousness of surgical robot.