• Title/Summary/Keyword: Temporal region

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Utilization of the Disaster Response System from Niigata Earthquake (니이가타지진 사례로 보는 재난대응시스템 활용방안 연구)

  • Park, Young-Jin
    • 한국방재학회:학술대회논문집
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    • 2008.02a
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    • pp.119-122
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    • 2008
  • Recently, Geographical Information System (GIS) has been progressed in the fields of not only earth sciences and disaster problems, but also medical sciences, economical and social sciences. the southern region of Mid Niigata Region was attacked by intensive earthquake of M.6.8 on Richter Scale on October 23, 2004. The aim of this study was to improve efficiency of restoration operation for early victims relief. Significant issue is achieving the information processing required in restoration operation by spatial temporal information system.

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Traumatic Pseudoaneurysm of the Superficial Temporal Artery due to Gardner Traction

  • Lee, Hyun-Seok;Jo, Kwang-Wook;Lee, Sun-Ho;Eoh, Whan
    • Journal of Korean Neurosurgical Society
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    • v.48 no.3
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    • pp.291-293
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    • 2010
  • We report a case of pseudoaneurysm of the parietal division of the superficial temporal artery (STA) secondary to iatrogenic head injury due to Gardner traction. A 54-year-old man presented with a pulsatile, cystic, and painless mass in the right anterior temporal region which developed three weeks after head fixation via Gardner traction. At the time of discovery, the mass was 10 mm in diameter, compressible and disappeared after manual compression of the proximal STA. A bruit was audible over the mass, which was thought to be a pseudoaneurysm. A computed tomography angiogram (CTA) showed a pseudoaneurysm of the parietal division of the right ST A. The tip of the pseudoaneurysm was thrombosed and was both red and tender. The pseudoaneurysm was thought to be filled with infected thrombus, and the mass was resected with ligation of the proximal and distal ends of the STA. A pseudoaneurysm of the STA should be suspected when there is a history of possible vessel injury, such as a history of head-pin fixation, and when a patient presents with a pulsatile, cystic mass near the temple. Pseudoaneurysms can be successfully treated by excision.

Detection Algorithm of an Active Video Player Region in the Monitor Screen (모니터 화면 내 활성화된 동영상 재생기 영역 검출 기법)

  • Kim, Hak Gu;Song, Byung Cheol
    • Journal of the Institute of Electronics and Information Engineers
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    • v.50 no.3
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    • pp.122-128
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    • 2013
  • This paper presents a detection algorithm that accurately finds the active area of a video player on monitors or smart TVs. Unlike the previous approaches, temporal difference-based detection algorithms or hooking programs, the proposed detection algorithm can locate the active video player by using the spatial and temporal correlation and a corner detection filter. First, an initial location of the video player is found using conventional temporal difference-based detection. Then, starting from the initial location, the four corners of the active video player are detected by the spatial edge information and the corner detection filter. The experimental results show that proposed algorithm provides fast detection speed and high accuracy.

Traumatic hematoma-based pseudoaneurysm of the superficial temporal artery in a 7-year-old boy: a case report

  • Dae Hwan Park;June Key Lee;Bong Soo Baik;Wan Suk Yang;Sun Young Kim
    • Archives of Craniofacial Surgery
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    • v.24 no.1
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    • pp.32-36
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    • 2023
  • The superficial temporal artery (STA), the terminal branch of the external carotid artery, is divided into the frontal (anterior) and parietal (posterior) branches. The frontal branch of the STA is located superficially on the anterior region of the scalp, making it especially susceptible to trauma. Here, we report a traumatic pseudoaneurysm of the STA in a 7-year-old boy who was injured in a minor car accident. A physical examination showed only a small bruise on the patient's forehead, and all vital signs were stable at the emergency room of our medical center. A facial computed tomography scan showed no significant findings. However, the boy later re-visited the hospital with slight swelling on the right forehead, and an ultrasonography scan revealed a hematoma near the right temporal artery. The resected hematoma (approximately 2 cm) was diagnosed as a traumatic pseudoaneurysm. Awareness of the possibility of a traumatic pseudoaneurysm in the STA may prevent a circumspect diagnosis in the future.

A Spatio-Temporal Variation Pattern of Oiling Status Using Spatial Analysis in Mallipo Beach of Korea (공간분석 기법을 이용한 만리포 유분의 시·공간 변동 패턴 분석)

  • Kim, Tae-Hoon;Choi, Hyun-Woo;Kim, Moon-Koo;Shim, Won-Joon
    • Journal of the Korean Association of Geographic Information Studies
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    • v.15 no.4
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    • pp.90-103
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    • 2012
  • Mallipo is a representative beach contaminated by Hebei Spirit oil spill accident in December 2007. This study aims to compare the differences of two seasons (winter and summer) for the spatio-temporal variation patterns of oiling status in the whole area and divided five regions of Mallipo beach. In the whole area, the decreasing rate of average TPH (total petroleum hydrocarbon) in winter was twice greater than summer during four years. According to the spatial variation pattern analysis of oiling status using weighted mean center and weighted standard distance, the oil concentration was clustered on southwestern region in winter, however, the TPH was dispersed in the whole area in summer. Temporal variation pattern of TPH in each of Mallipo's five regions showed that TPH had been consistently decreased in winter, but oil concentration had not been changed in summer since 2009 except the southwestern region. Therefore, in order to evaluate and predict the progress of oiling status, it is needed to analyze the spatio-temporal variation pattern of TPH using spatial analysis after separating data into seasons (e.g., winter and summer). In addition, time series analysis is useful in the regional scales through spatial partitioning rather than the whole beach area for the understanding of temporal variation pattern.

Using Analysis of Major Color Component facial region detection algorithm for real-time image (동영상에서 얼굴의 주색상 밝기 분포를 이용한 실시간 얼굴영역 검출기법)

  • Choi, Mi-Young;Kim, Gye-Young;Choi, Hyung-Il
    • Journal of Digital Contents Society
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    • v.8 no.3
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    • pp.329-339
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    • 2007
  • In this paper we present a facial region detection algorithm for real-time image with complex background and various illumination using spatial and temporal methods. For Detecting Human region It used summation of Edge-Difference Image between continuous image sequences. Then, Detected facial candidate region is vertically divided two objected. Non facial region is reduced using Analysis of Major Color Component. Non facial region has not available Major Color Component. And then, Background is reduced using boundary information. Finally, The Facial region is detected through horizontal, vertical projection of Images. The experiments show that the proposed algorithm can detect robustly facial region with complex background various illumination images.

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A Study for Anatomical Evidence of Anxiety Using Magnetic Resonance Imaging in Patients with Panic Disorder and Complex Partial Seizure (공황장애와 복합부분간질 환자의 뇌자기공명촬영소견을 통한 불안의 해부학적 증거에 대한 연구)

  • Choi, Byung-Hwi;Lee, Young-Ho;Chung, Young-Cho
    • Korean Journal of Biological Psychiatry
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    • v.2 no.1
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    • pp.107-114
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    • 1995
  • This study was to investigate the anatomical evidence of anxiety. MRI was used to study 11 patients with panic disorder and 15 patients with complex partial seizure, and 21 controls. The regions of interest in the MRI were measured with computer-assisted planimetry using the AutoCad and digitizer. The following results were obtained ; 1) The mean age was 49.7(12.4) years in patients with panic disorder and 30.1(7.5) years in patients with complex partial seizure. 2) There were na signi ficant differences between 3 groups in the values of cerebral area, temporal lobe, caudate nucleus, hippocampus, parahippocampus, amygdala, third ventricle and VBR. The right parahippocampal region which attracted most attention in neurobiological studies regarding anxiety, tended to be larger in both study groups compared to the control group, but with no statistical significance. 3) There was lett-right reversal of temporal lobes in both study groups. And these are mainly due to asymmetrical increase in area of the temporal lobe on right side. These results suggest that temporal lobe, especially right temporal, is the anatomical correspondence of anxiety and functional activation of temporo-limbic system may be accompanied by the structural change of temporal lobe.

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Spatio-temporal Analysis of Snowfall for 5 Heavy Snowfall Areas in South Korea (우리나라 5대 대설지역의 적설량 변화 분석)

  • Kim, Saet Byul;Shin, Hyung Jin;Ha, Rim;Kim, Seong Joon
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.32 no.2B
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    • pp.103-111
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    • 2012
  • This study is to analyze the spatio-temporal trend of snowfall using 30 years (1980-2010) data for 5 selected heavy snowfall areas (Ulleungdo (a), Northeastern Region (b), Western Taebaek Range Inland Region (c), Northwestern Sobaek Range Inland Region (d) and Southern Coastal Region (e)). The snow depth and snowfall frequency during 30 years showed some decreasing trend in parts of c and d. From the spatial comparison for 2 periods between 1980-2000 (A) and 1990-2010 (B), we could identified that the frequency of advisory for heavy snowfall from A to B decreased in c and d showing clear bounds for some areas in period B. For the average snow depth from A to B, the area d decreased while the area b increased with enlarging the areal range.

Estimation of Sea Surface Height using Pressure-recording Inverted Echo Sounders Data in the Mindanao Current Region (민다나오 해류 해역에서 PIES 자료를 이용한 해수면 산출)

  • Hwang, Chorong;Min, Hong Sik;Jeon, Chanhyung;Kim, Dong Guk;Park, Jae-Hun
    • Ocean and Polar Research
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    • v.43 no.4
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    • pp.219-227
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    • 2021
  • Sea surface height (SSH) anomalies were estimated from data recorded by four pressure-recording inverted echo sounders (PIESs) in the Mindanao Current region over a duration of 2 years from December 2017 to November 2019. The steric components of SSH anomalies were derived from round-trip acoustic travel times from the sea floor to the sea surface, whereas mass-loading components were derived from bottom pressures. Temporal variabilities in the total (steric and mass-loading) SSH anomalies and the steric component are extremely similar; this result implies that the steric component plays a major role in SSH anomalies in this region. Comparisons of the PIES-derived SSH anomalies with satellite-measured SSH anomalies reveal that the former has less temporal variability. Correlation coefficients between the total SSH anomalies and satellite-measured SSH anomalies are less than 0.85, which is lower than the correlation coefficient between the steric components and satellite-measured SSH anomalies.

A Study on the Improvement of Spatiotemporal Resolution about Fugitive Dust Activity Data in the Agriculture Field (농업분야 비산먼지 활동도 자료의 시공간 해상도 개선 연구)

  • Koo, Tai Wan;Shin, Ho Yong;Woo, Jiyun;Mun, Su Ho;Choi, Doo Sun;Kim, Yoon Kwan;․Jeon, Eui-chan
    • Journal of the Korean Applied Science and Technology
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    • v.39 no.1
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    • pp.132-145
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    • 2022
  • The emission factor and activity data of fugitive dust in the domestic agricultural field have been applied to the US inventory system without reflecting the domestic environmental conditions (wind speed, humidity, etc.) and agricultural characteristics. In this study, the temporal resolution was improved for each region by deriving a monthly distribution factor through the application of wind speed and dry season and the spatial resolution was improved for each region by subdivided into dong and ri from ci·gun·gu. Through this study, it is judged that it can be used as an important data for improving the emission and activity data of fugitive dust in the agricultural field that currently exist.