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      • KCI등재

        권역단위 농촌지역개발사업의 주민역량 측정을 위한 설문도구개발

        리신호 ( Shin Ho Rhee ),민흥기 ( Heung Gi Min ),윤성수 ( Sung Soo Yoon ),정남수 ( Nam Su Jung ),장우석 ( Woo Seok Chang ) 한국농촌계획학회 2014 농촌계획 Vol.20 No.4

        The purpose of this study was to develop survey tools for diagnosis of capacity levels in business promotion of rural residents when performing a rural development project of a regional unit. The cases of previous studies were analyzed to select community capacity indicators related to a rural development project. Five indicators were derived : social capital, consciousness of participation, community spirit, and leadership. Based on the five indicators, measurement items of various capacities were selected and 54 survey items were selected through evaluation of experts twice. The pilot tests were conducted and targeted at Jeonnam song ho-jung village and Gyeongnam Haegeumgang village to identify derived survey items. In addition, descriptive statistic analysis and reliability analysis were conducted. As a result, survey items were corrected by reducing 10 items of the total 54 items. This results showed that using this tool could help us understand capacity levels of rural residents.

      • SCOPUSSCIEKCI등재

        Intracavitary Radiation Therapy for Recurrent Cystic Brain Tumors with Holmium-166-Chico : A Pilot Study

        Ha, Eun Jin,Gwak, Ho-Shin,Rhee, Chang Hun,Youn, Sang Min,Choi, Chang-Woon,Cheon, Gi Jeong The Korean Neurosurgical Society 2013 Journal of Korean neurosurgical society Vol.54 No.3

        Objective : Intracavitary injection of beta-emitting radiation source for control of cystic tumors has been tried with a benefit of localized internal radiation. The authors treated cystic brain tumor patients with Holmium-166-chitosan complex (Ho-166-chico), composed of a beta-emitting radionuclide Holmium-166 and biodegradable chit polymer, and evaluated the safety and effective measurement for response. Methods : Twenty-two patients with recurrent cystic brain tumor and/or located in a deep or eloquent area were enrolled in this pilot study. The cyst volume and wall thickness were determined on CT or MRI to assess radiological response. The activity of Ho-166-chico injected via Ommaya reservoir was prescribed to be 10-25 Gy to the cyst wall in a depth of 4 mm. Results : There was neither complications related to systemic absorption nor leakage of Ho-166-chico in all 22 patients. But, two cases of oculomotor paresis were observed in patients with recurrent craniopharyngioma. Radiological response was seen in 14 of 20 available follow-up images (70%). Seven patients of 'evident' radiological response experienced more than 25% decrease of both cyst volume and wall thickness. Another 7 patients with 'suggestive' response showed decrease of cyst volume without definitive change of the wall thickness or vice versa. All patients with benign tumors or low grade gliomas experienced symptomatic improvement. Conclusion : Ho-166-chico intracavitary radiation therapy for cystic tumor is a safe method of palliation without serious complications. The determination of both minimal effective dosage and time interval of repeated injection through phase 1 trial could improve the results in the future.

      • Antioxidant activity in vitro and mucosal protective effect of Rhei Rhizoma on reflux esophagitis induced in rats

        Ah Reum Lee,Yu Ock Shin,Joo Young Lee,Min Yeong Kim,Sung Ho Shin,Bu-Il Seo,Young-Bae Seo,Man Hee Rhee,TakakoYokozawa,Chan Hum Park,Seong-SooRoh 한국약용작물학회 2015 한국약용작물학술대회 발표집 Vol.2015 No.05

        Purpose Rhei Rhizoma (RR) is one of the herbal medicines traditionally used to treat diverse inflammatory diseases. The present study was undertaken to elucidate the antioxidant and anti-inflammatory activities of Rhei Rhizoma on experimental reflux esophagitis (RE) in rats. Methods The antioxidant activity of RR in vitro was measured in terms of radical scavenging capacity such as DPPH and ABTS. RE was produced by ligating both the pylorus and the transitional junction between the forestomach and the corpus. Rhei Rhizoma (125 and 250 mg/kg) were administered every day for 7 days, and its effect was estimated on comparison with RE control and normal rats. Results RR scavenged DPPH and ABTS effectively and IC50ofDPPH and ABTS radical scavenging activity of RR were 4.8 μg/ml and 15.75 μg/ml. The administration of RR decreased the elevated serum ROS in RE control rats. The RE control rats exhibited the down-regulation of antioxidant-related proteins such as Nrf2 and HO-1expression levels in the esophagitis; however, the level in the RR-treated RE rats was significantly higher than that in the RE control rats. Moreover, RE control rats exhibited the up-regulation of the protein expression related to oxidative stress at the esophagitis, but RR administration significantly reduced the expression of inflammatory proteins through the MAPK-independent signaling pathways. The expression of inflammatory mediators and cytokines by NF-κB activation was modulated through blocking the degradation of IκBα. In addition, the oral administration of RR regulated the gastric mucosal damage in RE rats. Conclusion The administration of Rhei Rhizoma effectively ameliorates the inflammatory damage of esophageal mucosa through radical scavenging activity and the activation of the Nrf2/HO-1 pathway.

      • Dynamic Behavior of Steel Fiber Rdinforced Concrete at Different Strain Rates under Compressive Loading

        李信昊,吳武泳 충북대학교 농업과학기술연구소 1993 農業科學硏究 Vol.11 No.1

        The dynamic behavior of steel fiber reinforced concrete(SFRC) subjected to impact loading was studied and compared with that plain concrete under high strain rate. Tests were conducted using high strain rates of compressive loading. Material characteristics were measured as stress-strain curves during compressive loading. The sirength, strain, and elastic modulus of SFRC under dynamic compressive loading were significantly improved with the increase of strain rate. In particular, the increase of energy absorption capacity was much larger than that for plain concrete. The effect of strain rate was higher for SFRC and even more so the higher volume fraction of fibers.

      • 중성 K중간자의 CP비보존

        李聖瑞,柳新鎬 公州大學校 基礎科學硏究所 1994 自然科學硏究 Vol.3 No.-

        top quark의 질량을 추정하기 위해 본 연구에서는 광범위하게 중성 K중간자계의 현상을 조사 연구하였다. top quark의 질량이 Frizsch의 질량행렬과 Sctech의 질량행렬로 예언된 상한값을 넘을 수 있다는 실험 결과에 비추어 top quark의 큰 값을 수용할 수 있는 B.L. 질량행렬과 G.J. 질량행렬을 사용하였다. 또한 KL-KS 질량차 Δm과 CP 비보존 매개변수 |ε|을 구속조건으로 사용하였다. G.J. 질량행렬로 얻은 혼합행렬을 실험자료와 비교하여 117Gev∼178Gev의 범위에 top quark의 질량이 존재한다는 것을 얻었다. 중성 Kaon계에서 Δm과 |ε|의 값의 계산에서 C.K.M. 행렬과 이론적 투입 매개변수에 대한 합리적 값을 사용하여 구간 mt의 하한은 185Gev이며, G.J. 질량행렬로 얻은 혼합행렬과 투입 parameter를 써서 구한 mt의 하한은 180Gev였다. B.L. 질량행렬로 얻은 혼합행렬을 사용할 때 mt의 하한의 범위는 220∼260Gev이다. We have investigated the phenomenology of the neutral kaon system in a comprehensive way in order to estimate the top quark mass. In the light of experimental indications that the top quark mass, mt may exceed the upper bound predictioned by the Fritzsch ansatz and Stecch's ansatz for quark mass matrices, we have used B. L. mass matrix and G. J. mass matrix which could accommodate large value of mt. And also we have used the KL-KS mass difference Δm and the CP non-conservation parameters |ε|, as constraints to be satisfied. Comparing the C. K. M. matrix by G. J. ansatz and experimental data, we have obtained mt to be in the range 117Gev - 178Gev. In the neutral kaon system C. K. M. matrix and reasonable values for the theoretical parameters suggest the lower bound of top quark mass might be about 185GeV. And also we have obtained the lower bound of mt to be about 180GeV through the mixing matrix by G. J. ansatz and values of input parameters. When we used the Hiking matrix made by B. L. ansatz we have obtained the lower bound of mt to be in the range 220GeV-260GeV.

      • KCI등재
      • 전통 흙집의 주거 환경 특성

        리신호,송창섭 忠北大學校 農業科學硏究所 2003 農業科學硏究 Vol.20 No.-

        The characteristics of temperature, humidity, air, and noises was analyzed to know the residential environment of the earthen house with core walls and wood frameworks The daily variations of temperature and humidity are small The purification effect of room air and the suppression effect of noises are confirmed

      • 灌漑 用水路 組織의 構造化에 대한 經濟的 妥當性 檢討

        高在君,李信昊 서울大學校 農科大學 1986 서울대농학연구지 Vol.11 No.1

        This paper is the final stage to evaluate economic feasibility of concrete bench flume for irrigation conveyance systems. The two different methods of economic evaluation in this paper were used; Comparison of Internal Rate of Return and Cost Comparison. The former is considered benifits and costs, the latter only costs. Five irrigation districts were selected near Pyongtack and Ansung to evaluate these methods. The results from this study are summarized as follows: 1. The concrete bench flumes were found to be the most economical types in consequence of the comparison of internal rate of return, where estimated benifits were considered the irrigation area enlarged by conveyance systems, and costs included the assumed costs for conveyance losses. 2. As a result of cost comparison, the total expenses for concrete bench flumes were cheaper than those for earth canals within five years, and the bench flumes for main canals were more profitable than those for branch canals. 3. In case that existing earth canals were improved to concrete bench flumes, cost comparisons were used to analyze their economic evaluations. These results show that improving to bench flumes is economically feasiable when the construction costs improving to bench flumes are not exceeding 320,000won/m (190,000won/m at present) for main canals and 70,000won/m (42,000won/m at present) for branch canals. 4. The results from these study including Koh and Rhee (1983) and Choi et. al. (1985) demonstrate that it is to be desired that irrigation corveyance systems are constructed as concrete bench flumes and existing earth canals are improved to concrete bench flumes.

      • 에코콘크리트의 독성시험

        宋昌燮,李信昊,金明煥 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 performed to analyze the toxic effects fo ecoconcrete which was developed to be applicate the farm road and agricultural structure's backfill materials To this ends, a series of test was conducted for the soil picked in Hagso, located in Chungbuk province The mixture ratio of ESC was 10%, 20% and 30% by weight of dry soil Produced sample was observed through state of fish by intervals of time From the first toxic test result, singularity symptoms were observed to fish increases with ESC mixture ratio Common symptoms were observed impaired digestion, difficulty in breathing, body color change Specially, singularity symptoms were observed the most notedly in aquarium which mixture ratio 20% After 18 days the second toxic test result, it was found that in number of survival of fish could not observed change in aquarium, excepted ESC mixture ratio 20% Therefore, developed ecoconcrete does not influenced in number of survival of fish

      • 주변 자원과의 연계를 통한 명심체험마을의 발전방향

        이태순,김은영,윤성수,리신호 忠北大學校 農業科學硏究所 2012 農業科學硏究 Vol.28 No.2

        The MYEONGSIM village located in Baekkok-myeon, Jincheon-gun, Chungcheongbuk-do, Korea has been developed the green tourism, farm stay and green rural experience project. Although the village has more varius advavtages such as gacilities and experience program than the other villages its tourists are gradually decreasing. In this thesis, specific development direction of the village will be proposed by the analysis of characteristics of tourists and SWOT analysis through understanding of characteristics of visitors and investigation of rural amenith resources

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