• 제목/요약/키워드: Jul

검색결과 338건 처리시간 0.028초

마이크로웨이브 강수량을 이용한 MTSAT-1R 위성의 강우강도 추정 (Estimation of Rainfall Intensity for MTSAT-1R Data using Microwave Rainfall)

  • 지준범;이규태
    • 대한원격탐사학회지
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    • 제26권5호
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    • pp.511-525
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    • 2010
  • MTSAT-1R의 적외 채널 밝기온도와 마이크로웨이브 강수량 자료를 이용하여 강수량을 추정하였다. 정지위성의 밝기온도와 다양한 마이크로웨이브(SSM/I, SSMIS, AMSU-B, AMSRE, TRMM) 강수량의 시공간일지 자료생성 및 관계성을 분석하여 MTSAT-1R 밝기온도와 마이크로웨이브 강수량의 조견표를 작성하였으며 밝기온도에 적용하여 강수량을 산출하였다. 산출 강수량은 지상 AWS 및 TRMM 위성자료를 이용하여 검증하였다. TRMM 2A12(TMI) 방법에 산출 강수량은 AWS 및 TRMM3B42 강수량 검증에서 상관계수는 0.38과 0.61, RMSE는 5.81과 2.44 mm/hr, PC는 0.79와 0.84 그리고 POD는 0.65와 0.87로 가장 높은 결과를 보였다. 전체적으로 위성을 이용한 강수량 산출에서 AWS 강수량과 비교하여 5 mm/hr 이상 그리고 TRMM3B42 강수량과 비교하여 2 mm/hr 이상 많은 강수를 추정하였다. 강수량의 검증 결과는 TRMM 2A12, AMSRE, SSM/I, AMSU-B 및 SSMIS 계열 방법순서로 상관성 등의 대부분 검증에서 높은 결과를 나타내었다.

Interactions between common heterotrophic protists and the dinoflagellate Tripos furca: implication on the long duration of its red tides in the South Sea of Korea in 2020

  • Eom, Se Hee;Jeong, Hae Jin;Ok, Jin Hee;Park, Sang Ah;Kang, Hee Chang;You, Ji Hyun;Lee, Sung Yeon;Yoo, Yeong Du;Lim, An Suk;Lee, Moo Joon
    • ALGAE
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    • 제36권1호
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    • pp.25-36
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    • 2021
  • The mixotrophic dinoflagellate Tripos furca causes red tides in the waters of many countries. To understand its population dynamics, mortality due to predation as well as growth rate should be assessed. Prior to the present study, the heterotrophic dinoflagellates Noctiluca scintillans, Polykrikos kofoidii, Protoperidinium steinii, and mixotrophic dinoflagellate Fragilidium subglobosum were known to ingest T. furca. However, if other common heterotrophic protists are able to feed on T. furca has not been tested. We explored interactions between T. furca and nine heterotrophic dinoflagellates and one naked ciliate. Furthermore, we investigated the abundance of T. furca and common heterotrophic protists in coastal-offshore waters off Yeosu, southern Korea, on Jul 31, 2020, during its red tide. Among the tested heterotrophic protists, the heterotrophic dinoflagellates Aduncodinium glandula, Luciella masanensis, and Pfiesteria piscicida were able to feed on T. furca. However, the heterotrophic dinoflagellates Gyrodiniellum shiwhaense, Gyrodinium dominans, Gyrodinium jinhaense, Gyrodinium moestrupii, Oblea rotunda, Oxyrrhis marina, and the naked ciliate Rimostrombidium sp. were unable to feed on it. However, T. furca did not support the growth of A. glandula, L. masanensis, or P. piscicida. Red tides dominated by T. furca prevailed in the South Sea of Korea from Jun 30 to Sep 5, 2020. The maximum abundance of heterotrophic dinoflagellates in the waters off Yeosu on Jul 31, 2020, was as low as 5.0 cells mL-1, and A. glandula, L. masanensis, and P. piscicida were not detected. Furthermore, the abundances of the known predators F. subglobosum, N. scintillans, P. kofoidii, and Protoperidinium spp. were very low or negligible. Therefore, no or low abundance of effective predators might be partially responsible for the long duration of the T. furca red tides in the South Sea of Korea in 2020.

환자의 일반적 특성과 의료기관에 따른 물리치료 서비스 및 물리치료사에 대한 만족도 조사 - 김천지역 중심으로 - (A Survey of Patient Satisfaction with Physical Therapy Servics and Physical Therapist According to General Characteristics and Medical Institution - Focused on Gimcheon City -)

  • 박흥기;정병옥;김근조;안병헌
    • 대한물리치료과학회지
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    • 제15권4호
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    • pp.51-60
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    • 2008
  • Background: The purpose of this study show the degree of physical therapy service and physical therapist according to medical institution by measuring and determining the factor affecting patient satisfaction in the Gimcheon city. Methods: For this study 100 questionnaires were distributed to medical institution, Gimcheon city from Jul 20 to Aug 5, 2008. The consisted of total 28 items. The contents item divided the general characteristics into nine heads, the satisfaction of physical therapy service into nine heads, and the physical therapy into ten heads. Survey data were collected by a written questionnaire. The collected date were analyzed by t-test, ANOVA. Results: There was difference with statistic value in physical therapy according to medical security and handicapped or non-handicapped(p<.05). There was difference with statistic value in physical therapy service and physical therapist according to medical institution. The score of patient satisfaction at welfare facilities was significantly lesser than other medical institution(p<.05). Conclusion: There was difference with statistic value in physical therapy service and physical therapist according to a number of patients of physical therapy a day.

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경남 통영해역에서 발견된 한국 미기록 노메치과 어류 2종 Psenes maculatus와 Psenes cyanophrys (노메치과, 농어목)에 대하여 (First Record of the Two Driftfish, Psenes maculatus, and Psenes cyanophrys (Nomeidae: Perciformes), from Korea)

  • 명정구;조선형;김종만;김용억
    • 한국어류학회지
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    • 제13권3호
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    • pp.195-200
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    • 2001
  • 1998년 6월과 7월에 경상남도 통영해역에서 떠다니는 해조 (drifting seaweeds)를 채집하던 중 Nomeidae과의 우리 나라 미기록 어종인 Psenes maculatus와 Psenes cyanophrys 각각 1개체가 채집되었다. Psenes maculatus는 유어기에 6개의 "<"모양의 흑점띠가 체측에 존재하는 특징으로 "띠물릉 돔"으로 명명한다. Psenes cyanophrys는 눈 뒤에 비늘이 존재하는 점, 체형이 난형인 점 등의 특징으로 같은 속의 물릉돔과 구분되었으며, 옆줄 아래에 16줄의 세로무늬가 나타나는 특징으로서 "줄무늬 물릉돔"으로 명명하였다.

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냉간압연용 1MVA IGBT 인버터의 개발 (A New Approach to Advanced Cold Mill Drive Systems)

  • 손요찬;김용석;전석호;정대웅;석줄기;송승호;설승기;권병기;박가우;신원창;조응상;이진섭;최창호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1997년도 하계학술대회 논문집 F
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    • pp.1974-1977
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    • 1997
  • 오늘날 철강 냉간압연의 응용분야에서는 고성능의 장력제어와 높은 신뢰도, 역률 개선, 공장의 생산성 향상 등을 요구하고 있다. 기존의 직류전동기를 대체하는 가변속 교류전동기 구동시스템과 고주파 PWM, 그리고 높은 역률을 보장하는 PWM 컨버터에 의해 이러한 요구사항들은 만족될 수 있다. 이 논문에서는 위에서 언급된 제어요건을 보장하는 철강 생산 설비용 1MVA급 압연시스템을 설명한다. 본 시스템은 하나의 ac/dc PWM 컨버터와 각각 700kw 유도전동기를 구동하는 두대의 PWM 인버터로 구성되어 있다. 제어 알고리듬은 TMS320C40 디지탈 신호처리 프로세서(이하 DSP) 시스템을 이용하여 구현하였다.

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한국과 일본의 감각통합 교육 프로그램의 변화 (The Change of Sensory Integration Educational Program in Korea and Japan)

  • 김경미;지석연;강은아;김미선;남궁영;이지영
    • 대한감각통합치료학회지
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    • 제3권1호
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    • pp.79-84
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    • 2005
  • Six members of Korean association of sensory integration(KASI) participated the treatment course named C-course of japanese association for the study of sensory integrative dysfunction(JASSID) during Jul. 27$\sim$Aug. 3, 2005. After the course, we investigated the education program of Japan and Korea and how it had been changed and developed. Through investigating JASSID with history for 23 years and KASI with history for 8 years, we find out that the common contents of sensory integration exist and the diversities of their own cultural and social contexts also exist. In korea, KASI would develop our own educational program and research based on having the close relationship with Japan and other former country developed education of sensory integration.

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불안장애환자(不安障碍患者) 19례(例)에 대(對)한 임상적(臨床的) 고찰(考察) (The Clinical Analysis on 19 Cases of Anxiety Disorder)

  • 정인철;이상용
    • 동의신경정신과학회지
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    • 제9권2호
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    • pp.161-169
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    • 1998
  • A clinical analysis was carried out for 19 patients who was treated in Dept. of Neuropsychiatry of Taejon Oriental Medicine Hospital from I aug. 1997 to 31 Jul. 1998 and was ruled out as anxiety disorder. The results were summarized as follows. 1. In the distribution of the sex, ratio between female and male was 1:2.8, distribution of the age was even each age, and the primary motive of the onset were psychological trauma, question of money, discord of a household. 2. As for the duration in disease, the duration from a week to a month had a majority of all, and the most duration of the addmission-treatment was a week. 3. The most common symptom were palpitation ·anxiety, headache·dizziness, chest discomfort, the cases of generalized anxiety disorder and atypical anxiety disorder was a large number. 4. In the aromatherapy of absorptive method, the sort of many used essential oil were Lavenda and Rosewood, in the massage, that were Peppermint and Rosemary. 5. The most used recipes were BUNSIMKIYEM(分心氣飮) HACHULBOSIMTANG(夏朮補心湯), CHUNGGANSOYOSAN(淸肝逍遙散), BANHABAEKCHUCHUNMATANG(半夏白朮天麻湯), CUIBIONDAMTANG(歸脾溫膽湯) etc. 6. In the judgement of efficacy, 9 cases showed good efficacy, 9 cases showed no change, 1 case showed excellent efficacy.

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Blunt Trauma 에 의한 기관-식도 파열의 치험 1례 (Rupture of the Trachea and the Esophagus Following Blunt Trauma: A Report of a Case)

  • 정윤채
    • Journal of Chest Surgery
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    • 제8권2호
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    • pp.119-124
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    • 1975
  • This is a case report of the rupture of the trachea and the esophagus following external blunt trauma without any associated injury. A 7 year old male patient was brought to the emergency room. Hanyang University Hospital, on 23 Jul, 1974 while he played under the pile of pingpong table A table was fall down over the patient accidentally. The patient was injured by the table and found lying in unconsciousness on the ground.There was subcutaneous emphysema on his anterior chest and neck. A contusion on the upper part of the sternum was noted. The breathing sound were diminished over the left side of the chest. Ronchi were heard over the right lung field. This patient was suffered from vomiting, dypsnea, and irritable mental state after this accident. On the chest roentgenogram in A-P view, hyperlucency at the mediastinum and parapericardiac area suggested the pneumomediastinum. On the next day, a diagnosis of the tracheal and esophageal rupture was confirmed by the esophagogram with Lipiodol swallowing. A right thoracotomy was performed and ruptured orifice of the trachea and the esophagus were closed with interrupted sutures. Postoperative course was uneventful and primary closure of the rupture of the trachea and the esophagus were succeeded.

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심근경색후 발생한 좌심실류 및 심실중격결손의 외과적 치료 (6례 보고) (Surgical Repair of Left Ventricular Aneurysm and Postinfarction Ventricular Septal Defect with Myocardial Revascularization (A report of 6 cases])

  • 조범구
    • Journal of Chest Surgery
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    • 제21권6호
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    • pp.996-1002
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    • 1988
  • A clinical analysis was performed on 115 cases of -patent ductus arteriosus treated surgically during the period of 11 years from Aug. 1977 to Jul. 1988. at the Department of Thoracic and Cardiovascular Surgery, Chungnam National University Hospital. Among 115 cases, male was 38 and female was 77 and ages ranged 12 days to 27 years old with the average of 8 7/12 years. The major clinical symptoms on admission were frequent URI attack[77.4%], dyspnea on exertion[32.2%] and palpitation[13%]. On auscultation, continuous machinery murmurs were detected in 97 cases[84.3%] and loud systolic murmurs were detected in 18 cases[15.7%]. Preoperative electrocardiographic findings were as follows: LVH 59[51.3%], RVH 12[10.4%], BVH 16[13.9%] and WNL 28[24.3%]. Radiologically, there were increased pulmonary vascularity in 104[90.4%] and cardiomegaly 62[53.9%]. Cardiac catheterization were performed in 101 cases and mean systolic pulmonary arterial pressure was 49.84*29.7mmHg and mean Qp/Qs was 2.95k1.8. Methods of operation were multiple ligation in 96, division in 11 and transpulmonary arterial repair using cardiopulmonary bypass in 8. Complication were recannalization in 2, temporary hoarseness due to left recurrent laryngeal nerve paralysis in 3 and respiratory distress in 1 and overall mortality rate was 1.7%[2 cases].

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산업용 서보 구동 시스템을 위한 자동 P/PI 속도 제어기 설계 (Automatic P/PI speed controller design for industry servo drives)

  • 배상규;석줄기;김경태;이동춘
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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    • pp.179-181
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    • 2003
  • Conventional P/PI speed controller of today's servo drives should be manually tuned the controller switching set-point by trial-and-errors, which may translate the drive system down-time and loss of productivity. The adjustable drive performance is heavily dependent on the qualify of the expert knowledge and becomes inadequate in applications where the operating conditions change in a wide range, i.e., tracking command, cceleration/deceleration time, and load disturbances. In this paper, the demands on simple controls/setup are discussed for industry servo drives. Analyzing the frequency content of motor torque command, P/PI control mode switching is automatically peformed with some prior knowledge of the mechanical dynamics. The dynamic performance of the proposed scheme assures a desired tracking response curve with minimal oscillation and settling time over the whole operating conditions. For comprehensive comparison of traditional P/PI control scheme, extensive test is carried out on actual servo system.

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