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      • KCI등재

        강원남부 폐광지역 개발기금 사업의 경제적 효과 : 2001~2021년간의 기금사업을 중심으로

        유원근(Won Keun Yu),최호영(Ho-yeong Choi),김승렬(Seung-Leul Kim) 한국산학기술학회 2022 한국산학기술학회논문지 Vol.23 No.11

        본 논문은 2001년부터 2021년 기간의 강원남부 폐광지역 4개 시군을 대상으로 전개된 폐광지역개발기금 투자의 경제적 파급효과를 실증적으로 분석함을 목적으로 한다. 이 기간 동안 연차별 투자 건수 1,220개로 구성된 691개의 재원 사업이 이행되었다. 분석대상 기간 동안 연차별로 투자된 재원의 합계는 총 1조 6,180.5억원이며, 지역산업연관분석을 통해 실증적으로 경제적 파급효과를 도출하는 것이 본고의 목적이다. 폐광지역개발기금의 투자금액의 면에서 보면, 대체로 생산유발효과가 상대적으로 낮은 3차산업 부문에 대한 재원의 비중이 큰 것으로 나타났다. 그러나 다른 한편으로 고려해야 할 점은 3차산업 부문의 취업유발효과가 이 지역에서 타 산업에 비해 높다는 점이다. 이러한 산업구조적 특성을 토대로 향후 폐광지역개발기금 사업의 경제적 효과를 최적화시키기 위해서는 유발계수 값의 분포를 고려한 재원의 배분 계획을 마련할 필요가 있다. 본고의 추정결과는 향후 폐광지역 개발기금의 합리적인 배분을 위한 실증적 기초 자료로서의 역할을 할 것으로 기대된다. This study aimed to analyze the economic effects of the closed mine area development fund on the southern part of the Gangwon provinces during the period 2001~2021. In this time frame, 691 financial projects comprising 1,220 items in the annual base were carried out and the total amount of investment was 1,618.05 billion Won. The main goal of this study was to derive empirical evidence about the economic effect of this fund through the regional industrial input-output tables. An analysis of the distribution of financial resources available to the specific fields revealed that the portion of funds invested in the tertiary industry sector has a low production inducement effect, which was not comparable with other industries. However, the movement of the employment inducement coefficient of tertiary industries led by the services sector in this area is comparatively high. Based on the regional character of the industrial structure, it is necessary to make a deliberate funds distribution plan taking the movement of the above inducement coefficients into consideration, to optimize the economic effect of the closed mine area development fund. The empirical output derived from this study would assist policymakers in establishing an effective distribution strategy for the closed mine area development fund in the future.

      • KCI등재

        견고 구외 골신장술을 이용한 구순구개열 환아의 치험례 : CASE REPORT

        유난영,박호원,,김성민,이주현,서현우 大韓小兒齒科學會 2005 大韓小兒齒科學會誌 Vol.32 No.4

        구순구개열 환자에서는 이른 시기에 시행된 수술로 인한 구순이나 구개부의 반흔 형성으로 섭식장애나 발음장애를 동반한 상악의 열성장이 나타나게 된다. 때로는 집중적인 교정치료 후에도 심한 상악골 저형성증을 보이며, 이러한 경우 성장이 완료된 후에 골이식을 동반한 악교정 수술로 상악골을 전방이동시켜 안모의 개선을 도모하기도 한다. 그러나 이러한 상악골의 전방이동은 연조직의 과도한 신장으로 인한 술후회귀현상, 추가적인 골이식이 필요하다는 한계를 가지고 있다. 골신장술은 이러한 한계점을 극복하는 최신 치료방법으로 구순구개열 환자, 두개골 융합증을 나타내는 환자 등에서 상악골을 포함한 두개 안면골의 개선에 많이 이용되고 있다. 특히 구외장치를 이용하는 골신장술은 골신장기간 중에 견인 방향의 조절이 보다 쉬우며, 충분한 양의 골신장이 가능하여 보다 좋은 결과를 얻을 수 있다. 본 증례는 상악 열성장을 보이는 구순구개열 6세 7개월의 여자 환아로, 변형된 구내 프로씨 1형 골전단술(modified Le Fort I osteotomy) 후 두개골을 고정원으로 이용하는 견고 구외 골신장술을 통해 상악골을 전진시켜 양호한 결과를 얻었기에 이를 보고하는 바이다. Patients with cleft lip and palate present severe maxillary hypoplasia due to scar of lip and palate, often accompanied by compromised mastication, speech abnormalities. Sometimes maxillary hypoplasia persist even though active orthodontic treatment was done. In theses cases, patients born with cleft lip and palate will be potential candidates for maxillary advancement with bone grafting after growth to correct the functional deformities and improve aesthetic facial proportions. But, maxillary advancement using standarf surgical approaches has several limitations: increased relapse tendency after maxillary advancement, necessity of additional bone graft and mandibular setback surgery. Distraction osteogenesis is current treatment modality to overcome these limitations, thus has become popular for treatment of maxillary hypoplasia associated cleft lip and palate, craniosyntosis. Especoally, rigid external distraction, contrary to internal device, has adbantages; better vector control of osteotomized segment, effective traction of the bony segments, the ease of the application and removal the distraction device. This study showed that relatively successful result could be generated by using rigid external distraction osteogenesis(RED) in the case of cleft lip and palate with severe maxillary hypoplasia, 6 years 7 months old.

      • KCI등재
      • 구치부 2급와동에 있어 심미성 수복물의 변연접합도에 관한 연구

        유미경,이광원,손호현 全北大學校 齒醫學硏究所 1993 전북치대논문집 Vol.11 No.1

        The purpose of this study was to evaluate the cervical marginal adaptation of direst composite resin, composite resin, composite resin inlay and porcelain inlay technique. 40 cavities of class Ⅱ were prepared 40 extracted maxillary premolr teeth, which were divided into four groups. Group 1 : restored by direct filling method(P50) Group 2 : restored by direct filling method(Z100) Group 3 : restored by resin inlay method(Estilux posterior CVS) Group 4 : restored by procelain inlay method(Vita-dur N) All the specimens were embedded into stainless steel mold after thermocycling between 5℃ and 55℃. Phototaking under microscopic image and measuring the marginal gap on the photographs and statistical analysis were peformed Specimens from each group were cut mesio-distally and observed under SEM. The results were as follows : 1. The groups restored by inlay method showed significantly less marginal gap than groups restored by direct filling method(P<0.05). 2. There was no significant difference in marginal gap between composite resin inlay group with porcelain inlay group(P>0.05). 3. The group restored by direct filling method(Z100) showed significantly less marginal gap than group restored by direct filling method(P5O)(P<0.05). 4. SEM examination indicated that direct composite resin groups were larger gaps(10- l5μm) than groups(2-5μm).

      • 부분입체선택적 Zwitterionic Claisen 전위반응

        柳燦模,崔夏洵,李宗昊,鄭元爀 성균관대학교 기초과학연구소 1995 論文集 Vol.46 No.2

        Aza-Claisen rearrangement through the zwitterionic intermediate is described. This reaction was able to carry out at low temperature(-78∼0℃) and also exhibited high diastereoselectivities. The formation of zwitterionic intermediate was realized by addition of t-crotylamine to the ketene formed from deprotonation of corresponding acyl halide. The electronically neutral product was achieved through the [3,3]-sigmatropic rearrangement of self-promoted zwitterionic intermediate in high diastereoselectivity due to lower reaction temperature. Treatment of N-crotylpiperidine with propionyl chloride in the presence of K_2CO_3 at 0℃ for 1 h gave threo selective(97 : 3) amide in 41% isolated yield.

      • 등척성 신전운동 시 요부근의 근 활성도

        유원규,정영종,이재호,김창인 한국전문물리치료학회 2001 한국전문물리치료학회지 Vol.8 No.1

        Back extension exercises have been used for rehabilitation of the injured low back, prevention of injury, and fitness training programs. However, excessive loading on low back can exacerbate existing structural weakness. The purpose of this study was to compare muscle activity of low back muscles during back extension exercises. Twenty healthy male subjects were evaluated, Electromyographic (EMG) activities of low back muscles at L1 and L5 level were recorded during seven different back extension exercises and two reference tasks by surface EMG and saved for data analysis. Reference tasks of lifting 20% and 40% of their body weight were included for comparison. The result were as follows: 1) Single-arm extension and single-leg extension exercises on quadruped position appeared to constitute a low-risk exercise for initial extensor strengthening. 2) When arm extension was combined with contralateral leg extension on quadruped position, EMG activities of low back muscles were increased, 3) EMG activity of low back muscles was highest during the trunk extension exercises on prone position. 4) EMG activities of low back muscles during arm and leg extension exercises on quadruped position were less than those of reference task of lifting 40% of their body weight. These results have important implications for progressive back extensor muscle

      • 결핵성 육아종에서 Thioredoxin peroxidase-2 의 발현

        박근호,유형륜,정영진,윤기중,한원철,유대열,문형배 圓光大學校 醫科學硏究所 1999 圓光醫科學 Vol.15 No.2

        Background: Thioredoxin peroxidase(TPX) is a kind of recently discovered antioxidant enzyme which react as rapid hydrogen ion donor for the removal of hydroperoxide. The action and distribution of the TPX was poorly understood in the human diseases. This experiments were designed for the study about the distribution of the TPX in the chronic granulomatous inflammation and about the correlation between the expression of TPX and the site of inflammation, histological activities of tuberculous inflammation or existence of mycobacterium in the inflammatory foci. Methods: The immunohistochemical stains were performed for the localization of the TPX-2 in the epithelioid cells, giant cells and lymphocytes in the chronic granulomatous inflammation. The tissue sections were obtained from the paraffin blocks of the 54 cases of tuberculosis (lung 21 cases, lymph node 12 cases, bone and soft tissue 12 cases, kidney 9 cases; active 33 cases, inactive 21 cases by the histologic classification; presence of mycobacterium 15 cases, no mycobacterium 39 cases by PCR reaction). Results: The expression of TPX-2 was 16.7% in the giant cells, 27.8% in the epithelioid cells and 100% in the lymphocytes of tuberculous inflammations. The expression of TPX-2 in the giant cells and epithelioid cells of the tuberculosis were 28.6% and 57.1% of the pulmonary tuberculosis; 33.3% in each cells of the renal tuberculosis; 0% in each cells of the lymph node or bone and soft tissue tuberculosis. The expression of TPX-2 in the giant cells and epithelioid cells were 9.1% in each cells of the active tuberculosis and were 28.6% and 57.1% in each cells of the inactive tuberculosis by histologic classification. The expression of TPX-2 in the giant cells and epithelioid cells was 40% in each cells of tuberculosis which mycobacteria were detected and the expression of TPX-2 was 7.7% and 23.1% in each cells which mycobacteria were not detected by PCR reaction in the paraffin embedded tissue. Conclusions: The above results were summarized that the TPX-2 in the giant cells and epithelioid cells were more frequently expressed in the inactive tuberculosis than in the active tuberculosis. These results suggest that the TPX-2 is a kind of regulating or suppressing factors in the activity of the tuberculosis.

      • 배구 지도자 리더십 유형이 선수 만족도에 미치는 영향

        강유원,이상호,최영문 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

        1. Forms of leadership that according to each school(middle & high). There are meaningful difference of training and instruction between middle and high school. And the study tells that high school students perceived them(training and instruction) more than middle school students. 2. Forms of leadership that according to each gender(male & female). According to each gender, the meaningful difference of leadership style was shown. And it revealed that female athletes perceived the social support more than male athelets. 3. Forms of readership and degree of athlete's contentment that according to each school. In the interrelation between the leadership style and the contentment degree of the athletes each school, there are high relations in the game contentment, role contentment, team and athlete's contentment, when the training and instruction style refer to. And game contentment when democratic type refers to. There are, however, minus relations in the game content ment, when autocratic behavior style refers to. And also, there are high relations in every part when the social support style and positive feedback style refer to. In the case of the athletes who are the high school students, the high relations revealed in game contentment, rolecontentment, team contentment and athlete's contentment, when the training and instruction refer to. And there are high relations in every part when democratic type, social support type and positive feedback type refer to. However, there are minus relations in every part. 4. Forms of readership and degree of athlete's contentment that according to gender. In the interrelation between the leadership and the athlete's contentment that based on the sex, there are high relation in game , team contentment, role contentment, degree of athlete's contentment for the male athletes when the training and instruction style refer to. And there are high reations in game contentment, team contentment, role contentment, degree of athlete's contentment when the democratic behavior style refers to. And also, there are high relations in every part when social support style and positive feedback type refer to. For the female athletes on the other hand, there are high relations in game contentment, role contentment, degree of athlete's contentment when the when the training and instruction refer to. And there are high relations in game contentment, team contentment, degree of athlete's contentment when autocratic behavior style refers to. And there are high relations in every part when social support type and positive feedback type refer to. However, there are minus relations in the role contentment, team contentment, degree of athlete's contentment when the autocratic behavior style refers to.

      • 기어강의 표면가공에 따른 부식특성

        이승호,서유원,정성균 서울산업대학교 산업대학원 2000 大學院論文集 Vol.7 No.-

        The surface treatment to increasing corrosion resistance is becoming influence as very important technology. The influence of shot peening on the corrosion resistance of SCM 420 steel is investigated in this work. Then, surface compressive residual stress and hardness considerably increased, which resulted in the increase of corrosion resistance.

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