NDGPS 기준국의 SBAS 기준국으로의 공동 활용을 위한 기준국 환경 분석

한영훈,박슬기,박상현,Han, Young-hoon,Park, Sul-gee,Park, Sang-hyun 한국정보통신학회 2016 한국정보통신학회논문지 Vol.20 No.9

본 논문에서는 현재 해양수산부에서 운영 중인 NDGPS 기준국을 SBAS 기준국으로 공동 활용하기 위한 목적으로 사이트 환경 관점에서의 타당성을 확인한다. 이를 위하여 SBAS 기준국의 사이트 환경 요구사항을 도출하고, 본 요구사항을 확인할 수 있는 절차를 수립한다. 그리고 수립된 기준국 사이트 환경 조사 절차를 기반으로 NDGPS 기준국의 현장 조사를 실시하고 그 결과를 분석한다. 이때, 사이트 환경 조사를 위한 사이트 선정은 NDGPS 기준국 17개소를 대상으로 한다. 본 논문의 내용은 NDGPS 기준국을 SBAS 기준국으로 공동 활용하기 위하여 고려해야 할 요소도출 및 위성항법시스템 분야의 기준국 선정 및 구축 시 활용할 수 있다. In this paper, it verifies site environment aspect that NDGPS (Nationwide Differential Global Positioning System) operated by MOF (Ministry of Oceans and Fisheries) will be used as the same site of reference stations for SBAS (Satellite Based Augmentation System). In order to prove this feasibility, we analyze the site environment requirements for SBAS reference stations, as well as we establish the procedure for the verification of the site environment requirements. With this procedure of the site environment survey, we perform site survey in the real field and analyze the results. We select interim candidate sites for survey which currently operating 17 NDGPS reference stations. This paper could be utilized in the process of selection or installation of reference stations in the field of GNSS(Global Navigation Satellite System) and the drawing the consideration which NDGPS reference stations will be co-operated as SBAS reference stations.

흑생강의 단회투여독성시험과 안전성등급화

한영훈 ( Young-hoon Han ),박영철 ( Yeong-chul Park ) 대한본초학회 2018 大韓本草學會誌 Vol.33 No.4

Objectives : Kaempferia parviflora Rhizome is black ginger indigenous to Laos and Thailand. It has been used as a folk medicine to improve blood flow and promote vitality and longevity with good health and well being. For these reasons, Kaempferia parviflora Rhizome has been focused on developing it as a food or food supplement. In addition, Kaempferia parviflora Rhizome could be under consideration of new prescription based on its characteristic compounds, polymethoxyflavonoids. However, it needs to be certified as safe before it can be used. Here, a single-oral toxicity test and safety classification was carried out to identity acute information of the toxicity of Kaempferia parviflora Rhizome powder and to make sure of its safety in clinical applications. Methods : Test substance was orally administered to male and female SD-rat at dose levels of 5000 ㎎/㎏ to estimate approximate lethal dose(ALD). Based on the acute information of the toxicity, the safety classification was estimated using the HED(human equivalent dose)-based MOS(margin of safety). Results : At 14 days after treatment with test substance. there were no of test substance related with mortalities and clinical signs. In addition, no changes in the body or organ weights and no gross or histopathological findings were observed. Thus, the ALD of Kaempferia parviflora Rhizome powder was considered over 5,000 ㎎/㎏ in both female and male mice. Conclusions : Based on the single oral toxicity test using the highest and limit dose, 5,000 ㎎/㎏ and the decision guideline for safety classification based on HED-based MOS, it was estimated that Kaempferia parviflora Rhizome powder is classified as “Specified class B” indicating that clinical dose is not limited to patients as safe as food.

다중경로 환경에서의 CDGPS 성능분석

한영훈(Young Hoon Han),최윤섭(Yun Sub Choi),조성룡(SungLyong Cho),허문범(Moon Bum Heo),박찬식(Chansik Park),이상정(Sang Jeong Lee) 대한전기학회 2012 정보 및 제어 심포지엄 논문집 Vol.2012 No.4

정신과 거역 퇴원 환자들의 외래 추적 치료에 대한 순응도와 관련된 요인

한영훈(Young Hoon Han),이도윤(Do Yun Lee),손용표(Yong Pyo Son),박창증(Chang Jeung Park),이광헌(Kwang Hun Lee),사공정규(Jeong Kyu Sakong),곽경필(Kyung Phil Kwak) 대한사회정신의학회 2010 사회정신의학 Vol.15 No.1

연구목적: 이 연구는 정신과 입원 환자 중 거역 퇴원을 한 환자들을 대상으로 어떠한 요인이 퇴원 후 외래 추적 치료에 대한 순응도에 영향을 미치는가에 대해 알아보고자 하였다. 방 법: 2006년부터 2009년까지 4년 동안 동국대학교 경주병원 정신과에서 거역퇴원을 한 163명의 환자들의 진료기록부를 조사하여 퇴원 후 외래 추적 치료를 나온 군과 나오지 않은 군으로 나누고, 외래 추적 치료를 나온 군을 다시 6개월 이상 추적 치료가 지속되는 군과 지속 되지 않는 군으로 나누어 각 군에 영향을 미칠 수 있는 요인들을 비교분석하였다. 결 과: 거역퇴원 후 외래 추적 치료에 한 번도 나오지 않은 환자는 43명이었고 한번이라도 나온 환자는 120명이었다. 그 중 6개월 이전에 외래 추적 치료를 중단한 환자는 49명이었으며 6개월 이상 치료를 지속하는 환자는 71명이었다. 외래 추적 치료의 여부에 영향을 미치는 요인은 거역퇴원의 이유와 거역퇴원 당시의 환자의 상태, 입원 기간이었다. 환자가 환자의 병을 부정하거나 치료에 불만족하여 거역퇴원을 한 경우는 외래 추적 치료가 잘 되지 않았고, 퇴원 당시의 상태가 좋거나 입원 기간이 긴 경우에는 외래 추적이 잘 되었다. 이러한 요인들 가운데 6개월 이상 외래 추적 치료가 지속되는 것에 영향을 주는 요인은 입원 기간뿐 이었다. 이러한 요인 외에 진단명, 사회 인구학적 특성, 입원 경로, 입퇴원 요일, 주치의 성별 및 연차 등 어떤 것도 외래 추적 치료에 영향을 주지 못했다. 결 론: 거역퇴원 환자의 외래 추적 치료에 환자의 병에 대한 인식과 입원 기간이 큰 영향을 미친다는 것을 알 수 있었다. 실제 임상 에서 거역퇴원 환자라 하더라도 외래 추적 치료를 잘 받을 수 있도록 하는 치료진의 노력이 필요할 것이다. Objective:The purpose of this study is to research factors which affect Outpatient department(OPD) follow up and consistency in psychiatric inpatients discharged against medical advice from psychiatric hospitalization. Methods:The subjects in this study were 163 patients who were discharged against medical advice from Department of Neuropsychiatry at Dongguk University Hospital between January 1, 2006 and December 31, 2009. Patients were divided into two groups:patients who came for OPD follow up treatment and patients who did not. The group of patients who came for OPD follow up treatment was then subdivided into two groups:a group with patients who continuously came for OPD follow up treatment for more than 6 months and a group with patients who were lost be-fore 6 months. After classifying the patients, we compared and analyzed the factors which could influence each group. Results:After being discharged against medical advice, 43 patients did not show up for OPD follow up treatment at all and 120 patients came for OPD follow up treatment more than once. 49 patients were lost before 6 months and 71 patients continued to come for OPD follow up treatment for more than 6 months. Factors that affected OPD follow up treatment were the reasons for the patient’s discharge against medical advice, result of treatment and the duration of psychiatric hospitalization. When the reason for discharge against medical advice was complete denial of illness or dissatisfaction with staffs, patients were not well followed up at the OPD. On the other hand, when result of treatment was good at the time of discharge or when the duration of psychiatric hospitalization was long enough, patients were well followed up at the OPD. Among these factors, duration of psychiatric hospitalization was the only one that could affect the continuance of OPD follow up treatment for more than 6 months. Apart from these reasons, diagnosis, so-ciodemographic characteristics, mode of admission, day of admission, day of discharge and gender or grade of doctor did not influenced the OPD follow up treatment. Conclusion:Insight of their own psychiatric illness and the duration of psychiatric hospitalization affected OPD follow up treatment in patients who were discharged against medical advice. In clinical application, even if patients are discharged against medical advice, psychiatrist should make efforts to get those patients to receive OPD treatment.

동해안 해안시구의 식생특성

한영훈 ( Young Hoon Han ),조광진 ( Kwang Jin Cho ),이용호 ( Yong Ho Lee ),김종봉 ( Jong Bong Kim ) 한국환경복원기술학회 2013 한국환경복원기술학회지 Vol.16 No.1

The phytosocialogical study on the coastal sand dune vegetation of the East Coast was carried out. 180 phytosociological releves of 62 sites in the East Coast were used in this study, In addition, already published syntaxa and the phytosociological hierarchy in Korea and Japan were used and comparative analyses of syntaxonomy, synecology, syngeography, and syndynamics were performed in the study. In this study, the flora was investigated 30 families, 66 genera, 77taxa and 3 vegetation types were identified: the coastal drift-line annual communities (Calystegio soldanellae-Salsoletum komarovii), the dune glasslands communities (Elymo-Caricetum kobomugi, Cares kobotnugi typical community, EIvnus mollis community, (``alysregia soldanella community, Zovsia ,nacrostachya community, Cvnodon dactvlon community, Cares pumila community), and the dune shnihs communities (Linario Viticetrum rotundifoliae, Viler rotundfo1ia community, Rosa rugosa community). The aspect of transition in the coastal sand dune vegetation of the East Coast were identified as follows : (I) reduced constancy degree and cover degree of Glehnia lirroralis in each community; (2) lack of Jschaernu,n anthephoroides in Linarlo-Viticeruni rotundifoliae (3) simplified species composition in Virex rotundfo1ia community. Unstable habitat condition by external interference seemed to has caused the reduction of 2 taxa, Glehnia linoralis and ischaemuin anthephoroides, that usually grow in the second dune. In addition, we found changes in the distribution of the dune shrub communities influenced by rising temperature of the East Coast as results of the global warming. The results on the distribution of the dune shrub communities in this study demonstrated that the limit of the Rosa rugosa community made 0`` 44 ``N to the North and the vegetative limit of the Vitex rotund jfolia community made 00 28 ``N to the North, respectively compared with (he previously phytosociological studies. This study investigated the coastal sand dune vegetation, syntaxonomy, habitat condition and human disturbunce of the East Coast, and this will provide important information as basic data for the coastal ecosystem.

인공수정 및 수정란이식 후 젖소의 혈액과 유즙에서 Progesterone과 Estrogen 농도 변화와 수태율과의 상관관계

한영훈(Rong-Xun Han),김홍래(Hong-Rye Kim),조운비(Yun-Fei Diao),김영훈(Young Hoon Kim),우제석(Je Seok Woo),진동일(Dong-Il Jin) 충남대학교 농업과학연구소 2010 농업과학연구 Vol.37 No.3

Early pregnancy diagnosis of bovine is an essential component for efficient reproductive plan in farms because long term of non-pregnancy results in economic losses by failure of offspring production and low milk yield in dairy cattle. The major steroid hormones related with reproduction are known to be progesterone and estrogen in bovine pregnancy. To evaluate detection level of hormones in milk, plasma and milk progestrone and estrogen of Holstein cows was analyzed during artificial insemination (AI) and embryo transfer (ET). Progesterone concentration at 21 days postestrus was significantly different in plasma and milk between pregnant and non-pregnant cows. Estrogen concentration at estrus was higher in pregnant recipients than that in non-pregnant recipients. To analyze correlation between hormone levels and conception rates in Holstein, the conception and return rates were checked following AI, and the returned cows were on the track of pregnancy after consecutive AI. Pregnant cows following first AI were considered as high conception group while pregnant cows following third AI were rated as low conception group. Proportion of high and low conception groups in this study was 78.2% and 9.1%, respectively. Hormone analysis indicated that high conception group had higher estrogen level during estrus than low conception group (26.45±3.32 vs 19.017±2.97). Progesterone level was not different between high and low conception groups during estrus but increased significantly after 21 days postestrus (21 day: 4.95±1.12 vs 0.95±0.23, 35 day: 12.47±3.82 vs 2.41±1.21). In conclusion, the pattern of progesterone and estrogen secretion in Holstein milk samples could be a good candidate for early pregnancy detection and selection of recipients during ET.

A Case of Cementing Work for Geothermal Well

홍훈기 ( Hoon Ki Hong ),전재수 ( Jae Soo Jeon ),한영훈 ( Young Hun Han ),김호근 ( Ho Geun Kim ),정진태 ( Jin Tae Jeong ) 대한지질공학회 2013 대한지질공학회 학술발표회논문집 Vol.2013 No.1

현장 사례 중심의 심부 지열발전을 위한 대심도 시추 국내 적용

홍훈기 ( Hoon Ki Hong ),전재수 ( Jae Soo Jeon ),한영훈 ( Young Hun Han ),김호근 ( Ho Geun Kim ),정진태 ( Jin Tae Jeong ),장준현 ( Jun Hyun Jang ),박재천 ( Jae Cheon Park ),윤운상 ( Woon Sang Yoon ) 대한지질공학회 2013 대한지질공학회 학술발표회논문집 Vol.2013 No.1

원위 경골 골절에서 전외측 잠김 금속판을 사용한 전외측 최소 침습적 금속판 고정술

서동환,이환희,한영훈,정재중,Suh, Dongwhan,Lee, Hwan Hee,Han, Young Hoon,Jeong, Jae Jung 대한족부족관절학회 2020 대한족부족관절학회지 Vol.24 No.1

Purpose: Anterolateral minimally invasive plate osteosynthesis (MIPO) was performed to treat patients with distal tibial fractures associated with open fractures or extensive soft tissue injuries, which is limited medial MIPO. The treatment results of the anterolateral MIPO technique were evaluated and analyzed. Materials and Methods: Seventeen patients with distal tibial fractures associated with an open fracture or large bullae formation on the distal tibia medial side were treated with anterolateral MIPO using anterolateral locking plates. Within 24 hours of visiting the emergency room, external fixation was applied, and the medial side wound was managed. After damage control, the anterolateral locking plate was applied using an anterolateral MIPO technique. The union time, nonunion, or malunion were evaluated with regular postoperative radiographs. The ankle range of motion, operative time, blood loss, Iowa score, and wound complications were investigated. Results: Radiological evidence of bony union was obtained in all cases. The mean time to union was 16.7 weeks (12~25 weeks). The mean operation time was 44.0 minutes. Regarding the ankle range of motion, the mean dorsiflexion was 15°, and the mean plantarflexion was 35°. Satisfactory results were obtained in 15 out of 17 cases; five results were classified as excellent, four were good, and six were fair. The mean blood loss was 125.2 mL. Two complications were recorded. Conclusion: In distal tibial fractures with severe medial soft tissue damage caused by high-energy trauma, the staged anterolateral MIPO technique using anterolateral locking plates is a useful alternative treatment to achieving optimal wound care, rapid union with biological fixation, and intra-articular reduction.

Comparison of Effectiveness between Aripiprazole and Risperidone for Treating Delirium in Hospitalized Patients

Jeong-Kyu Sakong(사공정규),Young-Hoon Han(한영훈),Sung-Won Jung(정성원) 대한생물치료정신의학회 2011 생물치료정신의학 Vol.17 No.1

목적:비전형 항정신병 약물인 리스페리돈이 섬망 치료에서 부작용이 적고 효과적이라고 알려져 있다. 아리피프라졸도 항콜린성 및 추체외로계 부작용이 적은 비전형적 항정신병 약물 중 하나이지만 섬망 치료에 대해 입증된 연구는 적다. 본 연구는 아리피프라졸이 섬망 치료에 대해 효과적인지 조사해 보고자 하였다. 방법:43명의 섬망 환자를 무작위로 2군으로 나누었으며 투약 첫날에는 리스페리돈 1㎎, 아리피프라졸 5㎎을 투여하였으나 둘째 날부터는 임상상태에 따라 자유롭게 용량을 조절하였다. 리스페리돈 환자 27명과 아리피프라졸 환자 16명이 연구에 포함되었으며 이중맹검법을 사용하여 비교하였다. 비교는 치료전과 치료 일주일 Clinical Global Impression-Severity(CGI-S), 한국판 섬망평가척도(Korean version of Delirium Rating Scale ; K-DRS), 간이정신상태검사(Korean Mini Mental Status Examination; K-MMSE), 한국판 섬망평가척도(Korean version of Delirium Rating Scale-Revised-98 ; K-DRS-R-98), 추체외로계증상 평가척도(Extrapyramidal Symptom Rating Scale ; ESRS)의 점수를 사용하였다. 결과:리스페리돈과 아리피프라졸 두군 모두에서 치료 전후의 CGI-S, K-DRS, K-DRS-98의 점수가 통계적으로 의미 있는 차이를 보였다(p<0.05). 하지만 아리피프라졸 치료군의 경우 리스페리돈 치료군에 비해 차이를 보이지는 않았다. 결론:아리피프라졸이 섬망 치료에 있어 리스페리돈과 유사한 효과가 있을 것으로 기대된다.