• 대한원격탐사학회:학술대회논문집
• /
• 대한원격탐사학회 1998년도 Proceedings of International Symposium on Remote Sensing
• /
• pp.301-306
• /
• 1998

Korea Aerospace Research Institute (KARI) is developing a Korea Multi-Purpose Satellite I (KOMPSAT-I) which accommodates Electro-Optical Camera (EOC), Ocean Scanning Multi-spectral Imager (OSMI), and Space Physics Sensor (SPS). The satellite has the weight of about 500kg and will be operated on the 10:50 AM sun-synchronized orbit with the altitude of 685 km. The satellite will be launched in 1999 and its lifetime is expected to be over 3 years. The main mission of EOC is the cartography to provide the images from a remote earth view for the production of 1/25000-scale maps of KOREA. EOC collects 510 ~ 730 nm panchromatic imagery with the ground sample distance(GSD) of 6.6 m and the swath width of 17 km by push broom scanning. EOC also can scan $\pm$45 degree across the ground track using body pointing method. The primary mission of OSMI is worldwide ocean color monitoring for the study of biological oceanography. It will generate 6 band ocean color images with 800 km swath width and 1km GSD by whiskbroom scanning. OSMI is designed to provide on-orbit spectral band selectability in the spectral range from 400 nm to 900 nm through ground command. This flexibility in band selection can be used for various applications and will provide research opportunities to support the next generation sensor design. SPS consists of High Energy Particle Detector (HEPD) and ionosphere Measurement Sensor (IMS). HEPD has missions to characterize the low altitude high-energy Particle environment and to study the effects of radiation environment on microelectronics. IMS measures densities and temperature of electrons in the ionosphere and monitors the ionospheric irregularities at the KOMPSAT orbit.

• 대한수의학회지
• /
• 제53권1호
• /
• pp.49-54
• /
• 2013

To investigate the transmission pattern of geographical area and temporal trends of the 2010~2011 foot-and-mouth disease (FMD) outbreaks in Korea, and to explore temporal intervals at which spatial clustering of FMD cases space-time analysis based on georeferenced database of 3,575 burial sites, from 30 November 2010 to 23 February 2011, was performed. The cases represent approximately 98.1% of all infected farms (n = 3,644) during the same period. Descriptive maps of spatial patterns of the outbreaks were generated by ArcGIS. Spatial Scan Statistics, using SaTScan software, was applied to investigate geographical clusters of FMD cases across the country. Overall, spatial heterogeneity was identified, and the transmission pattern was different by province. Cattle have more clusters in number but smaller in size, as compared to the swine population. In addition, spatiotemporal analysis and the comparison of clustering patterns between the first 7 days and days 8 to 14 of the outbreak revealed that the strongest spatial clustering was identified at the 7-day interval, although clustering over longer intervals (8~14 days) was also observed. We further discussed the importance of time period elapsed between FMD-suspected notice and the date of confirmation, and emphasized the necessity of region-specific and species-specific control measures.

• 복식문화연구
• /
• 제19권5호
• /
• pp.1009-1018
• /
• 2011

The purpose of this study was to develop slacks patterns for middle-aged abdomen-obese adult males by using the 3D virtual-twin and virtual-garment simulation system. The criteria for subjects in this study were males who had over $25kg/m^2$ of BMI, over 90cm of waist, and over 0.90 of WHR. A total of 211 adult males who met these criteria were enrolled. The results were as follows: first, a new slacks pattern considerate of abdomen-obese men was development. The basic numerical formula were as follows: front and back hip girth H/4+3.5, front waist girth W/4+1+0.5, back waist girth W/4+1-0.5, front crotch extension H/16, back crotch extension H/8-0.5, front pleats amount 2.7, and back dart amount 1.5. Second, according to the results of the new slacks patterns appearance evaluation, the new slacks pattern scored more highly than the existing pattern in silhouette and ease amount, confirming that the new slacks pattern is appropriate for the abdomen-obese men. Also, the new slacks pattern was evaluated allowing proper space length of waist, abdomen and hip. Virtual models of production through data from a 3D body scan, pattern draft and virtual garment digital program were applied to a prototypic design method in order to enhance the fitness of ready-made garments. The use of the virtual twin made it impossible to comprehend the appearances and ease correspondent to motions. In order to evaluate wearing fitness, therefore, the system should be improved so as to change arm positions and perform various motions.

• 한국가스학회지
• /
• 제24권2호
• /
• pp.36-43
• /
• 2020

가스계 소화설비는 경제적으로 매우 유용한 설비이지만 설비를 갖춘 후 장기간 미사용될 경우 용기부식으로 인한 파열 현상과 설비 시스템 작동 오류 등이 나타날 가능성이 있어 큰 위험성을 내재하고 있다. 하지만 소화설비 특성 상, 설비의 정상작동 여부를 확인하기 위한 실험이 불가하여 파열 및 오작동으로 인해 밀폐공간 내에 가스가 일시적으로 방출되면 가스질식으로 인한 큰 인명 피해를 가져올 수 있다. 본 연구에서는 최근 발생한 가스계 소화설비작동 오류로 인한 질식 사망 사고를 바탕으로 사고 메커니즘을 분석하기 위해 실제사고가 발생한 현장에 대해 3D 스캐너와 FLACS를 활용하여 설비 오류로 인한 이산화탄소 가스의 유입경로와 이로 인한 사망 가능성 및 사망에 이르는 시간 등을 추정하였으며 이를 통해 질식사고로 인한 정확한 피해 영향을 평가하고자 한다.

• 대한기관식도과학회:학술대회논문집
• /
• 대한기관식도과학회 1993년도 제27차 학술대회 초록집
• /
• pp.90-90
• /
• 1993

후두암의 치료계획에 있어 어려운 점들로는 종양의 3차원적 위치, 점막하를 통한 전파, 후두연골의 침윤 여부 등이다. 특히 후두연골 침윤은 국소재발과 경부전이의 빈도가 높아 예후가 좋지 않다. 저자들은 후두암의 전파와 후두연골에의 침윤 양상을 이해하고 술전 임상적 진단의 정확도를 높여 치료방향을 설정하는데 도움을 얻고자 1991년 4월부터 1992년 11월까지 후두암으로 혹은 전적출술을 시행했던 예중 18례의 후두표본을 대상으로 연속 대절편을 제작하여 병리조직학적 관찰을 하고 다음과 같은 결과를 얻었다. 1. 후두연골 침윤의 양상은 주로 연골의 골화된 부위를 침범하였고 골화되지 않은 연골의 침윤은 매우 드물었다. 2. 침윤된 골화연골에서는 연골막이 건전하더라도 골수를 통해 전파하였다. 3. 연골막은 종양전이의 아주 강한 방어벽이었다. 4. 후두연골 침윤의 빈도는 갑상연골, 피열연골, 윤상연골, 후두개연골 순이었고 횡성문암에서는 후두연골 침윤이 88.9 % 로 상당히 높았다. 5. 후두연골 침윤여부에 대한 술전 CT의 민감도는 100%, 특이도 62.5%, 정확도 82.3%이다.

• 터널과지하공간
• /
• 제23권3호
• /
• pp.228-240
• /
• 2013

퇴적암에서 나타나는 이방성은 층리에 의한 영향이 크며, 암석의 수리적 특성에도 영향을 주게 된다. 본 연구에서는 층리가 발달한 다공질 사암을 대상으로, 층리구조에 의해 발생한 공극구조 이방성이 사암의 수리 이방성에 미치는 영향을 분석하였다. 사암의 공극구조 이방성 파악을 위해 X-ray CT(computed tomography)를 이용하여 내부 공극률의 변화양상을 분석하였다. 층리방향에 따른 수리이방성은 층리면과 수평면이 이루는 각도를 $0^{\circ}$에서 $90^{\circ}$까지 $15^{\circ}$간격으로 코어링한 샘플을 제작하여 투수실험을 통해 파악하였다. 투수실험 결과 층리면과 투수방향이 수직인 경우 투수율이 가장 작은 값을 나타낸 반면, 층리면과 투수방향이 평행일 때 가장 높은 투수율을 나타내었으며, 평균 수리이등방비($k_{90^{\circ}}/k_{0^{\circ}}$)가 1.8로 층리에 따른 수리 이방성이 확연하게 나타났다. 또한, 이러한 사암의 수리이방특성은 층리에 의해 공극특성이 서로 다른 층상구조가 형성되기 때문임을 확인하였다.

• 대한핵의학회지
• /
• 제16권1호
• /
• pp.31-39
• /
• 1982

The purpose of the present study is to evaluate the clinical and diagnostic significance of incidental findings of renal and urinary tract abnormalities, and extraosseous uptake of bone scans. The authors analyzed bone scans using $^{99m}Tc-MDP$(methylene diphosphonate) in 1238 cases of bone disease from April, 1979 to March, 1981. The results obtained were as follows. 1. Total extraosseous abnormalities were 112 cases (9%), which include 64 cases (5%) of renal and urinary tract abnormalities and 48 case(4%) of other extraosseous uptakes. 2. Renal and urinary tract abnormalities were 32 cases(50%) of obstruction, 14 cases(22%) of nonvisualization, 6 cases of space occupying lesion in kidney, 8 cases of kidney displacement and 4 cases of urinary bladder deformities. 3. Other extraosseous uptakes were 16 cases (33%) of body fluid collection, 15 cases of tumor uptake, 9 cases of free pertechnetate uptake and 8 others.

• Annals of Clinical Neurophysiology
• /
• 제3권2호
• /
• pp.143-146
• /
• 2001

Background : Backpack palsy was described in military personnel with shoulder girdle and proximal upper extremity symptoms, predominantly motor in nature related to the use of heavy backpack. Currently, backpack were used for sports, transporting school books and child carriers. We evaluated clinical and electrophysiological feature of backpack palsy. Methods : We included 11 patients with brachial plexopathy as a result of wearing a heavy backpack on long distance marches. All patients were done routine blood sampling, chest X-ray, C-spine X-ray and electrophysiological studies. Results : All patients were right handed person and were not as having a thoracic outlet syndrome. Sensory changes were main initial symptoms and major persistent symptoms were motor weakness. 9 patients(81.8%) were damaged the brachial plexus on non-dominant side, 1 patient was dominant and 1 patient was bilateral involvement. 10 patients(90.9%) were damaged to upper trunk of the brachial plexus by EMG findings. The prognosis was good, 10 patients(90.9%) were complete recovery during 8 weeks, 1 patient was developed reflex sympathetic dystrophy confirmed by 3-phase bone scan. Conclusions : Depression of the clavicle and costoclavicular space probably plays a certain role in pathogenic mechanism. The non-dominant side is more frequently affected, probably due to underdevelopment of the musculature in that side.

• 한국운동역학회지
• /
• 제29권3호
• /
• pp.197-204
• /
• 2019

Objective: The purpose of this study was to identify the effect of high-heels (HH) modification on metatarsal stress in female workers. Method: Seven females who work in clothing stores ($heights=160.4{\pm}3.9cm$; $weights=47.4{\pm}4.1kg$; $age=31.3{\pm}11.1yrs$; $HH\;wear\;career=8{\pm}6.5yrs$) wore two types of HH (original and modified). The modified HH had been grooved with 1.5 cm radius and 0.2 cm depth around the first metatarsal area inside of the shoes using the modified shoe-last. Participants were asked to walk for 15 minutes on a treadmill and to stand for 10 minutes with original and modified HH, respectively. Kinetics data were collected by the F-scan in-shoe system. After each test, participants were asked to rate their perceived exertion using the Borg's 15-grade RPE scale and interviewed about their feeling of HH. Nonparametric Wilcoxon signed-rank test and effect size (Cohen's d) were used to determine the difference of the variables of interest between the original and modified HH. Results: In the present study, modified HH of the peak contact pressure of 1st metatarsal (PCP) left, PCP right, pressure time integral (PTI) left, peak pressure gradient (PPG) left during standing and PPG right during walking are greater than original HH. And even it didn't show statistically significant, the average in all pressure values of modified HH showed bigger than original HH. It surmised to be related to awkward with modified HH. Even though they said to feel the comfortable cause of big space inside of HH in the interview, they seemed to be not enough time to adapt with new HH. So their walking and standing postures were unstable. Conclusion: Modified the fore-medial part of HH can reduce the stress in the first metatarsal head and big toe area during standing and walking.

• 한국의류산업학회지
• /
• 제21권1호
• /
• pp.59-66
• /
• 2019

The purpose of this study was to develop slacks pattern of elderly women aged over 60s by using the virtual twin and 3D virtual garment simulation system. The results were as follows; first, By using 3D Virtual Garment Simulation, new slacks pattern considered elderly women was development. The basic numerical formula were as follows, front waist girth W/4+2+1.5, back waist girth W/4+1.5+0.5, front hip girth H/4+0.75, back hip girth H/4+1.5, front crotch extension H/16-0.5, back crotch extension H/8-1.3, front dart amount 2 and back dart amount 1.5. Second, according to the results of the new slacks pattern's appearance evaluation, it estimated more highly than existing pattern in silhouette and ease amount, confirming that new slacks pattern is appropriate for the elderly women. Also, new slacks pattern was evaluated to allow proper space length of waist, abdomen and hip. Virtual models production through 3D body scan data, pattern draft and virtual garment digital program were applied to prototypic design method so as to enhance the fitness of ready-made garments. The use of the virtual twin made it impossible to comprehend the appearances and ease correspondent to motions. In order to evaluate wearing fitness, therefore, the system should be improved so as to change arm positions and perform various motions.