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      • KCI등재후보

        안전관리 기법에 관한 실증적 연구 : 건설작업을 중심으로

        채준석,갈원모,손기상 안전경영과학회 2000 안전경영과학회지 Vol.2 No.1

        Many Safety training up to now has been done at site varying with their condition without any standardization or fundamental work related technique. In order to prevent any accidents from construction site, now as we all know, we have to approach on it with work based method. The authors have investigated a couple of construction site for collecting the ideas from site Engineers of this. Some of ideas analyzed with the above related data have been shown as conclusions.

      • Midazolam의 백서 기관평활근 이완효과와 Flumazenil의 길항작용

        윤석화,신용섭,손수창,이원형,김혜자,최세진 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.2

        Midazolam have been used widely as adjuvants in both regional and general anesthesia and in high risk patients in the intensive care unit. In the present study we evaluated the effect of midazolam and antagonistic effect of flumazenil on isolated rat tracheal preparations mounted for recording isometric contractile force. Trachea smooth muscle were contracted with acetylcholine (10^-5M, Ach) and potassium chloride (40mM KC1). Midazolam 5x10 exp (-6)M and 5x10 exp (-5)M produced dose-dependent relaxation and flumazenil (3.2 x 10 exp (-7)M), central antagonist of benzodiazepine, pretreatment had no significant change midazolaminduced relaxation. Midazolam probably did not relax airway smooth muscle by activatong central benzodiazepine receptors, as flumazenil did not block the concentration-related relaxation of midazolam. Our study suggests that flumazenil may be used satety for asthmatic patients who have been with midazolam, as flumazenil did not antagonize airway relaxation elicited by midazolam.

      • KCI등재후보

        건설업 안전경영시스템모델 개발

        채준석,갈원모,손기상 안전경영과학회 2001 안전경영과학회지 Vol.3 No.2

        Safety management cost, US$ one thousand billion has been input to the construction area from 1995 to 2000 but the management quality is still in the developing country level. The above mentioned increase of accident rate are attributed to the generous code regulation, net fit to the sense, varying with time change, but the more fundamental reason of this is no practical construction safety management system, up to now. Hardware-orienting operation for the system could be a main reason of this problem. In this paper, we developed a model for efficient construction safety system. It was found from the case study that the model result in high efficient with low cost.

      • 정맥내 통증자가조절법을 이용한 Nalbuphine-Ketorolac과 Butorphanol-Ketorolac의 술후 진통효과 비교

        윤석화,이원형,손수창,신용섭,김윤희,양신영 충남대학교 의과대학 의학연구소 2003 충남의대잡지 Vol.30 No.1

        This study aimed to compare analgegic efficacy, satisfaction score and side effect of nalbuphine-ketorolac and butorphanol-ketorolac by using intravenous patient controlled analgesia(IV-PCA) for postoperative anlgesia following a gastrectomy for stomach cancer. Ninety patients who had undergone gastrectomy for stomach cancer under general anesthesia were randomly divided into two groups. Each group recieived nalbuphine 50mg with ketorolac 150mg(Group 1, n=45) and butorphanol 5mg with ketorolac 150mg(Group 2, n=45) by using IV-PCA during postoperative 48hrs. Assessments for pain with numerical rating scale(NRS), and side effects were evaluated at 2hr, 6hr, 12hr, 24hr, 36hr and 48hr after the operation. There were no significant difference in NRS for pain during rest, but Group 2 requested significantly greater amount of supplementary diclofenac during first 24 hours. Side effects were higher Group 1 in pruritus, nausea and vomiting and Group 2 in sedation, nausea and vomiting. This study suggests that adding ketorolac with intravenous nalbuphine or butrophanol in using an intravenous PCA can decrease analgesics requirement and improve analgesic property without the major morbidity like respiratory depression, but needs for the careful observation and treatment on the side effects like nausea. vomiting, pruritis and sedation...

      • 天安삼거리公園基本計劃에 關한 硏究

        安奉遠,李錫孫,姜喆基,林秀眞,金恩一 경희대학교 1988 造景論叢 Vol.1 No.1

        The goal of this study is to propose a plan for the construction of Chonan Samgori park. Present this park is designated a neighborhood park of Chonan city. This park is located on the point of traditionally important traffic point linked to Samnam province. And, this place is where the perspective experience of history and culture, which is a unique folk related activities. The site which covers about 96,000㎡is located about 4 km from the cityhall of Chonan city. This basic idea of this plan is to reconstruct the ancient culture and traditional way of life which is rapidly disappearing, to offer the place of education of vernacular culture, to give the recreation place to be a center where city dwellers release and enjoy. Facilities of this park are divided into five groups according to function such as support facilities, folk facilities, play facilities, educational and cultural facilities, and landscape facilities. Design principles are established as follows; to provide the folk park with identity, effectively to admit the folk-related activities, to maintain a functional linkage between facilities. The frame works for final master plan are Landuse plan, Circulation plan, Planting Plan, Facility plan.

      • 자동 문턱치 방법을 이용한 밀리미터파 영상의 은닉된 물체 영역 검출

        이동수,염석원,손정영,김신환 대구대학교 정보통신연구소 2010 情報通信硏究 Vol.7 No.1

        본 논문은 수동형 밀리미터파 영상 시스템을 이용하여 은닉된 물체의 영역을 검출에 관한 연구이다. 밀리미터파 영상은 악천후에도 영상 촬영이 가능하고 플라스틱, 종이, 나무, 옷, 머리카락 같은 특유한 물질들을 투과한다. 그리고 밀리미터파는 금속과 특수한 인공 구조물에 대한 반사율이 높기 때문에 은닉된 물체를 쉽게 검출할 수 있다. 본 논문에서는 밀리미터파 영상에서 은닉된 물체 검출의 영상 분할을 자동 문턱치 방법으로 나타낸다. 본 논문에서는 8㎜ 파장을 수평과 수직 편광 방향으로 수신하는 두 채널에서 획득된 밀리미터파 영상을 Gonzalez와 Otsu 방법으로 영역 분할을 한다. 실험 결과는 Gonzalez과 Otsu 방법 모두 은닉된 물체 영역의 형태를 잘 분리하지만 Otsu 방법이 노이즈와 몸체 영역의 경계 부분이 안정적으로 영역 분할됨을 보인다. We address an image segmentation method to detect concealed objects captured by passive millimeter wave (MMW) imaging. Passive MMW imaging can create interpretable imagery on the objects concealed under clothing. Due to the penetrating property of the MMW imaging, the MMW imaging system is often employed for the security and defense system. In this paper, we develop automatic thresholding methods for the segmentation of concealed objects detected by PMMW imaging. The automatic thresholding method is useful for the image with bimodal distributions. We compare several thresholding methods for two MMW channel images which have 8 mm-horizontal and 8 mm-vertical polarization, respectively. The experimental results show that concealed weapon area is well segmented from the background body by the presented methods.

      • KCI등재

        Whole-genome resequencing analysis of 20 Micro-pigs

        Da‑Hye Son,Nam‑Hyun Hwang,Won‑Hyong Chung,Ha‑Seung Seong,Hyungbum Lim,Eun‑Seok Cho,Jung‑Woo Choi,Kyung‑Soo Kang,Yong‑Min Kim 한국유전학회 2020 Genes & Genomics Vol.42 No.3

        Background Miniature pigs have been increasingly used as mammalian model animals for biomedical research because of their similarity to human beings in terms of their metabolic features and proportional organ sizes. However, despite their importance, there is a severe lack of genome-wide studies on miniature pigs. Objective In this study, we performed whole-genome sequencing analysis of 20 Micro-pigs obtained from Medi Kinetics to elucidate their genomic characteristics. Results Approximately 595 gigabase pairs (Gb) of sequence reads were generated to be mapped to the swine reference genome assembly (Sus scrofa 10.2); on average, the sequence reads covered 99.15% of the reference genome at an average of 9.6-fold coverage. We detected a total of 19,518,548 SNPs, of which 8.7% were found to be novel. With further annotation of all of the SNPs, we retrieved 144,507 nonsynonymous SNPs (nsSNPs); of these, 5968 were found in all 20 individuals used in this study. SIFT prediction for these SNPs identified that 812 nsSNPs in 402 genes were deleterious. Among these 402 genes, we identified some genes that could potentially affect traits of interest in Micro-pigs, such as RHEB and FRAS1. Furthermore, we performed runs of homozygosity analysis to locate potential selection signatures in the genome, detecting several loci that might be involved in phenotypic characteristics in Micro-pigs, such as MSTN, GDF5, and GDF11. Conclusion In this study, we identified numerous nsSNPs that could be used as candidate genetic markers with involvement in traits of interest. Furthermore, we detected putative selection footprints that might be associated with recent selection applied to miniature pigs.

      • 벼 乾畓直播栽培에서 Propyl Dihydro Jasmonate 種子處理에 따른 出芽 및 生育促進效果

        박종현,이철원,송범헌,손석용 忠北大學校 農業科學硏究所 2003 農業科學硏究 Vol.20 No.-

        This study was conducted to examine the effects of Propyl Dihydro Jasmonate on the growth responses, chilling tolerance and yields on the direct seeding on dry paddy at seedling stage in two rice cultivars The emergence rate of two rice cultivars (Seoan byeo and Dasanbyeo) were increased more by the treatment of 0.05μM PDJ than those of others. Higher concentration of PDJ was found to be inhibitory for germination. Number of emergence of cultivar Seoanbyeo was higher in 0.05μM PDJ treatment for 24hour as compared to 12hour, whereas, no significant difference was observed in case of cultivar Dasanbyeo Plant height and number of tillers of two rice cultivars were increased by the treatment of 0.05μM PDJ for 24 hour Rice yield of the tested cultivars were increased high in the PDJ treatment plot due to increment of the panicle number in the dry seesed paddy field.

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