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      • KCI등재

        綠化と人間 (Ⅲ) : 비탈면 綠化의 展望 Perspective on the revegetation of the face of slopes

        全槿雨,西門原,徐正一,安榮相,金仁愛,井上章二,岩本徹,江崎次夫 江原大學校 森林科學硏究所 2002 Journal of Forest Science Vol.18 No.-

        21세기에 들어 在來木本植物을 이용한 비탈면 綠化가 이용되기 시작되고 있으므로 그 발전방향을 예측하기 위해 綠化의 기본적인 개념과 綠化에 대한 주역주민의 인식을 정리하여 보았다. 조사결과, 지역주민은 綠化의 필요성과 在來木本植物을 이용한 工法을 충분히 인식하고 있었으나, 外來種의 도입에 대해서는 대부분의 주민이 부정적이었다. 따라서 앞으로는 비탈면 綠化의 多面性을 추구해야 하며, 在來 木本植物의 도입이 곤란한 장소에는 在來 雜草類의 이용을 추진해야 할 것이다. 또한 비탈면에 시공하고 있는 金網은 人爲的 災害를 유인할 가능성이 있으므로 시정할 필요가 있다. 결론적으로 비탈면 綠化는 단기적으로는 비탈면의 物理的 安定과 生態的 安定에, 중·장기적으로는 地球環境의 改善과 向上에 기여해야 할 것이다. The twenty-first century was entered and began to show the extent where revegetation of the face of slopes using the native woody plant was nationwide at last. Then, future revegetation of the face of slopes was considered on the basis of them in order to attempt the development of this direction, while the recognition for fundamental matter of the revegetation and revegetation of t h e regional inhabitant was arranged this time. The regional inhabitant sufficiently understood t h e necessity of the revegetation, and the method using the native woody plant had sufficiently been recognized, and the high evaluation was given in the method. In the other, the major inhabitant questioned it for introducing the exotic species. I t was proposed that the utilization of native weeds should be advanced by the pursuit of many facets of the revegetation of the face of the slopes based on these in future in the place where the introduction of the native woody plant is difficult. And, the method for stretching the wire netting for the face of slopes indicated the necessity of the urgent review, because the artificial disaster might be caused. As a conclusion, the goal of the revegetation of the face of slopes confirmed that it was ecologically stable short-terminable face of slopes physically and connects it with the medium and long term for improvement and improvement of global environment, and it indicated the importance of the revegetation of the face of slopes.

      • SCOPUSKCI등재

        횡 요천골부 후피부판 (Transverse Lumbosacral Back Flap)을 이용한 천골부 욕창 치험례

        전건수,김유승,하재성,박준용,서정오 大韓成形外科學會 1993 Archives of Plastic Surgery Vol.20 No.3

        Pressure sore is an area of ischemic tissue loss resulting from prolonged or often repeated pressure, usually over a bony prominence of body. Recently, the prevalence of pressure sore is major clinical problem, due to the increased number of patients with spinal cord injuries or longterm comatous patient after traffic, industrial accidents. The surgical principles in the treatment of pressure sores are total excision of the ulcer, scartissue, bursae, complete removal of all infected bone with recontouring of bony prominences to alleviate discrete pressure points and resurfacing and padding of the defects with healthy and well vascularized tissues. The sacral sore is the most common site for the development of pressure sore in Korea. We had experienced 14 cases who had received surgical treatments for sacral sores with transverse lumbosacral back flap. We obtained the following conclusions. Advantages 1)It is quick and easy procedure 2)The flap elevation itself is relatively bloodless 3)The donor defect is in a non-weight-bearing area 4)Muscle is not sacrified(possibly of importance in the ambulatory patient) 5)Surgical options are preserved in cases of recurrence(the flap itself may be reelevated and inset in some cases of recurrence) Disadvantages 1)It is lacking the bulky padding afforded by alternative musculocutaneous flaps 2)The vascularity of the flap tip is empirically less dependable than that of a musculocutaneous flap 3)The donor defect is large, cannot usually be closed primarily, and may prove of cosmetic concern

      • α,β-불포화 카르보닐 화합물들과 Malononitrile의 반응

        배선건,최정실,전성아 群山大學校基礎科學硏究所 1995 基礎科學硏究 Vol.10 No.-

        2,4,5,6-Substituted pyridine derivatives, such as 2-methyl-4-furanyl -5-cyano-6-methoxypyridine(7b), 2-aryl-4-furanyl -5-cyano-6-methoxypyridines(9a, 9d, 9e) and 2-styryl-4-phenyl-5-cyano-6-methoxypyridine(11) were prepared by the reaction of mal-ononitrile as Michael donor toward various compounds(6b, 8a, 8d, 8e, 10). The reactions appear to proceed via Michael addition of malononitrile to α,β-unsaturated carbonyl system followed by the condensation of the intermediate. The structure of these pyridines were elucidated from their ¹H-NMR and IR spectral data.

      • KCI등재

        급성심근경색증의 조기진단에 있어서 Myoglobin의 진단적 의의

        이정헌,김종근,정병천,서강석,박정배,조용근,류재근,전재은,채성철,박의현 大韓應急醫學會 1999 대한응급의학회지 Vol.10 No.2

        Background: Exact and early diagnosis of acute myocardial infarction (AMI) is essential for the subsequent routine management of this frequent cardiovascular disease. Currently, AMI has been diagnosed using the combination of the history, electrocardiogram(ECG), and biochemical markers of myocardial necrosis. At present, many biochemical markers are used to diagnose AMI. In this study, the predictive values of serum myoglobin and creatine kinase-MB(CK-MB) were compared in the emergency department. Methods: Fifty-four consecutive patients who presented within 12 hours from onset of chest pain of presumed cardiac origin were enrolled into the study. Patients with trauma or renal failure were excluded. The serial serum myoglobin and CK-MB levels were obtained prospectively at admission and 2, 4, 6, 12, 24 and 48 hours after admission. We compare the levels of serum myoglobin and CK-MB within 2, 4, 6, 8, 10, 12, 24, and 48 hours after symptom onset respectively. And we compare the sensitivity, specificity, positive predictive value, and negative predictive value of myoglobin and CK-MB. Results: using World Health Organization criteria, 28 AMI patients were identified. Mean time from symptom onset to presentation was 4.1±1.3 hours. The predictive values of serum myoglobin were better than those of CK-MB within 6 hours after symptom onset. But, 6 hours after symptom onset, the predictive values of CK-MB were better than those of serum myoglobin. The false positive cases of serum myoglobin were 3-one was lung cancer with pleural effusion and the others were unstable angina. The false positive cases of CK-MB were 6-one case was viral myocarditis and the ohters were unstable angina. Conclusion: To compare the serum myoglobin and CK-MB in the diagnosis of AMI, serum myoglobin had better predictive values than CK-MB within 6 hours after symptom onset and useful in the early diagnosis of AMI. But, 6 hours after symptom onset, CK-MB had better predictive values than serum myoglobin and useful in following up.

      • 거제도 구천호와 연초호의 곤충과 저서성 대형무척추동물의 분포

        정선우,박정원,전세근,윤춘식 7개 국립대학교 환경연구 논문집 공동발행 위원회 2004 공업기술연구 Vol.4 No.-

        The community structures of benthic macroinvertebrates and insects of reservoirs Yeoncho and Gucheon in Is. Geoje were studied. The surveyed sites were three streams and waterfronts each lake. The Collection was performed from May to October of 2004. As a result, total macroinvertabrates collected in the reservoir Yeoncho were 2 phyla, 2 classes, 8 orders, 15 families, 17 genera and 18 species. IN insects, 12 orders, 52 families, 89 genera and 95 species were identifies. Total macroinvertabrates collected in the reservoir Gucheon were 3 phyla, 4 classes, 10 orders, 15 families, 18 genera and 18 species. In insects, 8 orders, 45 families, 92 genera and 101 species were identified. Dominant species of benthic macroinvertebrates and insects in reservoir Yeoncho were Macrobrachium nipponense and Nysius(Nysius) plebejus respectively. The total species richness and species diversity of benthic macroinvertebrates in the reservoir Yeoncho was 32.78 and 1,77 respectively. The total species richness and species diversity of benthic macroinvertertebrates in the reservoir Gucheon was 36.48 and 1.88 respectively.

      • 합천군 정양지와 박실지의 곤충 및 저서성 대형무척추동물의 분포

        정선우,전세근,김인택,박정원,윤춘식 7개 국립대학교 환경연구논문집 공동발행 위원회 2005 공업기술연구 Vol.5 No.-

        The community structures of benthic macro-invertebrates and insects of reservoirs Jeongyang and Pakasil in Hapcheon-gun were studied. The surveyed sites were three streams and waterfronts of each lake. The Collection was performed from April to October of 2005. As a result, total macreo-invertebrates collected in the reservoir Jeongyang were 3 phyla, 4 classes, 12 orders, 29 families and 56 species. In insects, 12 orders, 71 families and 167 species were identified. Total macro-invertebrates collectd in the reservoir Paksil were 2 phyla, 3 classes, 8 orders, 19 families and 36 species. In insects, 11orders, 50 families and 137 species were identified.Dominant species of benthic macro-invertebrates and insects in reservoir Jeongyang were Chiromomus sp and Nysius plebejus respectively. Dominant species of benthic macro-invertebrates and insects in reservoir Paksil were Physella acuta and Nysius plebejus respectively. The total species richness and species diversity of benthic macro-invertebrates in the reservoir Jeongyang was 16.88 and 1.43 respectively. The total species richness and species diversidty of benthic macro-invertebrates in the reservoir Paksil was 12.12 and 1.10 respectively. The total species richness and species diversity of insects in the reservoir Jeongyang was 56.65 and 1.99 respectively. The total species richness and species diversity of benthic macro-invertebrates in the reservoir Paksil was 47.65. and 0.90 respectively.

      • KCI등재

        지역사회에서 형성된 사회적 지지와 근로자의 사회심리적 스트레스간의 관련성

        임화영,김형수,최영환,장성훈,이건세,정최경희,오원기,최재욱,정춘화 대한산업의학회 2006 대한직업환경의학회지 Vol.18 No.4

        Objective: This study was performed to examine the relationship between community-based social support and psychosocial distress in workers. Methods: The study subjects were 596 workers recruited from 11 companies in Chungju city. A structured questionnaire was used to assess sociodemographics, health-related behaviors, job characteristics, job stress, work-based social support, community-based social support and level of psychosocial distress. Results: Hierarchical multiple regression analysis showed that workers with no chronic disease, exercise and sufficient sleep had a higher score of psychosocial distress than those with chronic disease, no exercise, and not enough sleep. Coworker's work-based social support and community-based social support were negatively associated with psychosocial distress. The R square value of total independent variables on psychosocial distress was 0.409, and that of community-based social support on psychosocial distress was 0.052. Conclusion: This study showed that community-based social support served as a protective factor against psychosocial distress in some workers. We recommend the establishment of a worksite stress reduction program in occupational level as well as community-based social support.

      • KCI등재
      • 순시전력이론의α-β전류성분 및α-β전력성분의 고찰

        김정근(Jung-Kun Kim),임영철(Young-Cheol Lim),정영국(Young-Gook Jung),김영철(Young-Cheol Kim),전홍(Hong-Chun) 전력전자학회 2002 전력전자학술대회 논문집 Vol.- No.-

        To provide beginner with the standard current information on the a-β reference frame of nonlinear load, this paper has focused on the simulation works using MATLAB/SIMULINK in case of current source thyristor controlled rectifier The various a-β components of current/power components are induced by the p-q theory, the results are represented waveforms and trajectories on the a-β reference frame The compensation effect according to each of the compensating reference components are described

      • KCI등재

        봉지종류 및 괘대시기가 ‘원황’ 및 ‘화산’ 배 과실의 수확기 품질에 미치는 영향

        정억근,이욱용,안영직,이혁재,황용수,천종필 충남대학교 농업과학연구소 2013 농업과학연구 Vol.40 No.2

        We tested fruits quality and skin coloration of two pear cultivar ‘Wonhwang’ and ‘Whasan’ produced by bagging with different kinds of paper bags in the Cheonan area, Chungnam Province, Korea. The fruits were bagged at 35, 45, 55 or 65 days after full bloom (DAFB) with 3 kinds of double layer paper bag which consisted of grey color, yellow color and newspaper for outer layer. The great extent of light interruption was observed in grey colored outer paperbag among three kinds of paperbag which showed only 0.46% of lowest light transmittance when compared with 43.7% and 40.0% of yellow paper and newspaper, respectively. The development of skin redness (a*) increased with the delay of bagging time in two pear cultivars. But the fruits treated at 65 DAFB showed uneven coloration and excessive development of redness which represented low fruit external appearance value. Uniform flesh firmness was attained at the fruits bagged with grey outer color paperbag regardless of bagging time, although the fruit quality indices including soluble solids and titratable acidity did not change significantly by using different kind of fruit bags and bagging time in two pear cultivar. Based on our results, it was explained that the grey-colored fruit bag had positive effect on the development of skin coloration without any detrimental effect on fruit quality factors in ‘Wonhwang’ and ‘Whasan’ pears.

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