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        검색결과 295

        141.
        2016.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This research project provides the opportunity of foundation for Ministry of Agriculture y Ganaderia (MAG), University of El Savador (UES), and Centro Nacional de Tecnología Agropecuaria y Forestal (CENTA) and potato farmers of El Salvador to implement to achieve the project goal of poverty alleviation, nutrition improvement, and income increase of farmers through the establishment of sustainable self dependent national infrastructure for seed potato production and supply system and organized network of production of farmers. Kangwon National University has been designated by KOICA to implement the APP Track-II Project from April, 2015 to March, 2016. The support activities and research result include 'virus-free seed potato production facilities and laboratory equipment' provided to UES and CENTA, 'technology transfer of virus free seed potato production' such as making substrate, tissue culture, pathology test, subculture, mini tuber production, and some joint research result achievement, and various technological training conducted for participating researchers and local potato farmers for the virus-free seed potato production, table potato and seed potato cultivation technology, and the standard farming technology as well.
        4,000원
        142.
        2016.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구에서는 건축폐기물로 분류되는 레미콘회수수를 재활용함과 동시에 지구온난화의 주범 인 CO2의 자원화를 위한 시스템의 공정최적화를 진행하였다. 레미콘회수수를 이용한 액상탄산화 반응에 서 가장 중요한 공정은 Ca2+를 용출하는 공정이다. 일정량의 레미콘회수수를 이용해 고순도의 CaCO3을 생성하기 위해 Ca2+ 용출시 질산에 의해 낮아지는 pH 농도를 기준으로 실험을 진행하였으며, CO2는 발전기 배기가스를 이용해 MEA용액에 포집하였다. 본 연구를 통해 1톤의 레미콘회수수에서 최대 11 kg의 CaCO3를 합성할 수 있었다. 생성된 CaCO3 분석결과 제지용으로 사용 가능한 것을 확인하였다.
        4,000원
        143.
        2016.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Various studies have forwarded an outstanding wastewater effluent treatment systems toward securing sustainable supply of water sources. In this paper, a broad overview of the performance of MF membrane as pretreatment option for wastewater reuse will be presented based on the literature survey and experiments conducted over the wastewater reuse pilot plant. The pilot plant was operated with a continuous data acquisition for about 300days under various chemical enhanced backwash (CEB) system with subsequent treated water quality analysis. Accordingly, assessment of the effluent revealed that the pretreated water is suitable enough to be used as an input for Reverse Osmosis (RO) unit and significant effect of CEB and concentration of NaOCl is also conceived from the analysis. Moreover, it's also observed that the application of various CEB condition over long operational hours induced a constant declination of overall performance of MF membrane.
        4,000원
        144.
        2016.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Background: Many studies regarding task-oriented training have recently demonstrated functional improvement in patients with post-stroke hemiparesis. The task-oriented approach is very diverse, and chronic stroke patients must have access to a sustained systematic treatment program to enhance their walking ability. Objectives: This study aimed to compare the effects of the task-oriented circuit training and treadmill training on walking function and quality of life in patients with chronic stroke. Methods: Fourteen patients with chronic stroke volunteered for this study. The subjects were randomly divided into a task-oriented circuit training group and a treadmill training group with 7 patients in each. Each training regimen was performed for 30 min a day and 3 days a week for 4 weeks. Assessment tools included the Timed Up-and-Go Test (TUGT), 10-m Walk Test, 6-min Walk Test (6MWT), and the Stroke Impact Scale (SIS). Results: The change in results of the TUGT, 6MWT, and SIS measured prior to and following the training regimens appeared to be significantly different between the two groups (p<.05). In addition, after the intervention, significant differences were found for all parameters in the task-oriented circuit training group and for the TUGT, 6MWT, and SIS in the treadmill training group (p<.05). Conclusion: The findings suggest that task-related circuit training and treadmill training may be helpful to improve walking function and quality of life of patients with post-stroke hemiparesis. Additionally, a task-related circuit training program may achieve more favorable outcomes than a treadmill program.
        4,000원
        146.
        2016.02 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In this study, a fluorescent silica nano particle is used as the surrogate for challenging test of membrane surface integrity. The particles are functionalized by a fluorescent dying agent so that as an ultraviolet light is imposed a bright fluorescent image from the particles can be taken. If a membrane surface is damaged and has a compromised part larger than the size of surrogate the fluorescent particles would pass through and contained in the permeate. An operator can directly notice whether the membrane surface is damaged or not by detecting a fluorescent image taken from the permeate. Additionally, the size of compromised part is estimated through analysing the fluorescent image in which we surmise the mass of particles included in the permeate by calculating an average RGB value of the image. The pilot scale experiments showed that this method could be applied successfully to determine if a membrane surface had a damaged parts regardless of the test condition. In the testing on the actual damaged area of 4.712 mm2, the lowest error of estimating the damaged area was –1.32% with the surrogate concentration of 80 mg/L, flux of 40 L/m2/hr for 25 minutes of detection. A further study is still going on to increase the lowest detection limit and thus decrease the error of estimation.
        4,000원
        147.
        2016.02 KCI 등재 구독 인증기관 무료, 개인회원 유료
        An acoustic and trawl pilot survey using a small vessel was conducted in Jinhae bay of the South Sea of South Korea on April 13~14, May 11~13 and June 8~10, 2015. During the survey, acoustic data was collected and bottom trawls were conducted at the same time. First, various noises were eliminated by using the Park method based on the Wang method(Wang et al., 2015; Park et al., 2015), the species compositions and catch rate from each bottom trawl were observed, and spatial distribution of fishery resources in the water column and their nautical area scattering coefficient (NASC) were investigated through acoustic data. During the entire survey period, 12 orders, 33 families and 41 species were caught. The most caught species in April, May and June were Okamejei kenojei, Zoarces gilli and Pholis nebulosa, respectively. Fish schools were observed near the line of net mouth height in April. Numerous weak scatters were presented on the echograms in May and June. Many fish schools appeared in between the water surface and 20 m deep in May. The NASC value from entire water columns was the lowest in April (35.9 m2/n・mile2) and highest in June (1541.3 m2/n・mile2).
        4,300원
        148.
        2015.11 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study were to translate the Fullerton Advanced Balance (FAB) scale into Korean and to verify the content validity by utilizing a back-translation method with a view to assessing balance function and the risk of falling in a clinical research setting. This research was conducted in six steps. First, three Korean physical therapists translated the FAB scale into Korean. Second, two bilingual professors of physical therapy and a physical therapist evaluated translation conformity of Korean-translated FAB scale. In the third and fourth steps, twelve physical therapists evaluated the degree of translation comprehension, and a translator back-translated the Korean FAB scale into the original language. Fifth, a bilingual professor of physical therapy and two native speakers evaluated the technical and conceptual equivalence between the original and translation versions. In this process, inappropriate translated items were revised using recommended substitute words or sentences, and all items were evaluated on the basis of three points or more on a rating scale in terms of translation comprehension, and the technical and conceptual equivalence of the back-translation. In the sixth and last step, the translation verification committee completed the final Korean version. The above process indicated that the content validity of the Korean-translated FAB scale was established by means of systematic translation methods, and it can therefore be used to assess balance function and the risk of falls in a clinical research setting.
        4,200원
        151.
        2015.10 KCI 등재후보 구독 인증기관 무료, 개인회원 유료
        목적 : 본 연구의 목적은 욕창방지용 휠체어 쿠션의 신기술을 소개하고, 이 신기술에 따른 압력이 차이가 있는지를 알아보고자 함이다. 연구방법 : 본 연구는 2015년 6월 18일부터 23일까지 6일간 진행되었다. 일반 성인 남녀 2명을 대상으로 진행하였으며, 실험은 신기술의 욕창방지용 휠체어 쿠션 세 종류를 사용하였다. 각각의 쿠션은 45분간 적용되었으며, 측정된 압력 값을 비교하기 위해 X3 Medical v6.0을 사용하였다. 압력 측정의 맨 첫 번째 구간의 최대 압력 값, 맨 마지막 구간의 최대압력 값, 그리고 첫 번째, 중간, 마지막 구간을 합하여 3으로 나눈 평균 최대 압력 값을 각각 분석하였다. 결과 : 각 쿠션별로 측정된 압력 값을 분석한 결과, Java 쿠션이 최대 압력의 초기, 후기, 평균값 모두 가장 낮게 나타났다. Lock 쿠션은 최대 압력의 후기 값과 평균값이 가장 높았다. Galaxy 쿠션은 최대 압력의 초기 값이 가장 높았다. 결론 : 3가지 쿠션의 각 최대 압력 값이 부위에 따라 다르기 때문에 욕창 예방에 가장 효과적인 쿠션을 결론짓기에는 다소 무리가 있으나, 45분 동안 적용한 기준으로 측정한 최대 압력의 값은 Java 쿠션이 Galaxy와 Lock 쿠션보다 낮게 나타 났다. 그러나 욕창방지용 휠체어 쿠션 세 종류가 가지고 있는 기술의 특성을 고려하였을 때, 명확한 기준을 설정하여 보다 긴 시간동안의 압력 값을 비교하는 연구가 필요할 것으로 예상되며, 일반인이 아닌 실제 휠체어를 장기간 사용하는 대상자로 연구를 진행해볼 필요가 있다.
        4,000원
        152.
        2015.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Isopropyl alcohol (IPA)/물의 투과증발 분리특성을 알아보기 위해 상용화된 Polyetherimide (PEI) 중공사막에 Poly(dimethyl siloxane) (PDMS)로 코팅한 복합막 모듈을 이용하여 파일롯 테스트를 실시하였다. 공급액으로는 물과 IPA를 각각 85 : 15로 혼합하여 사용하였다. 실험 결과로 25°C에서 투과도 0.52 kg/m2h, IPA 농도 68.5%로 높은 수치를, 55°C에서 투과도 1.368 kg/m2h, IPA 농도 61.2%로 높은 투과도를 얻을 수 있었다. 테스트를 진행한 복합막 모듈의 내구성을 알아보기 위하여 약 100일간 반응온도를 50°C로 설정하여 장기테스트를 진행하였고 그 결과 약 1.03~1.15 kg/m2h의 투과도와 61.8~62.5%의 IPA 농도로 초기 측정량과 큰 차이가 없음을 나타내었다.
        4,000원
        153.
        2015.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study was conducted to investigate the effects of the removable ankle-foot orthosis (RAFO) which was developed to improve the gait of stroke patients. The subjects of this study were five stroke patients who agreed to participate in this study by signing a written consent form. To verify gait improvement after wearing the orthosis, a Timed Up and Go test and Functional Gait Assessment were performed, and spatiotemporal gait variables such as gait speed, cadence, stride length, double limb support, and the efficient gait test of body sway angle were performed. For every variable, the differences prior to and after wearing the RAFO were compared using the Wilcoxon signed-rank test. Every gait variable improved significantly after wearing the RAFO compared to prior to wearing it. The pilot study will enhance future efforts to evaluate orthotic function objectively during gait in stroke patients.
        4,000원
        154.
        2015.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Korea's modern waterworks began with construction of DDukdo water treatment plant in 1908 and has been growing rapidly along with the country’s economic development. As a result, water supply rates have reached 98.5% based on 2013. Despite multilateral efforts for high-quality water supply, such as introduction of advanced water treatment process, expansion of waterworks infrastructure and so on, distrust for drinking tap water has been continuing and domestic consumption rate of tap water is in around 5% level and extremely poor comparing to advanced countries such as the United States(56%), Japan(52%), etc. Recently, the water management has been facing the new phase due to water environmental degradation caused by climate change, aging facilities, etc. Therefore, K-water has converted water management paradigm from the "clean and safe water" to the "healthy water“ and been pushing the Smart Water City(SWC) Pilot Project in order to develop and spread new water supply models for consumers to believe and drink tap water through systematic water quality and quantity management combining ICT in the whole water supply process. The SWC pilot projects in Pa-ju city and Go-ryeong county were an opportunity to check the likelihood of the "smart water management" as the answer to future water management. It is needed to examine the necessity of smart water management introduction and nationwide SWC expansion in order to improve water welfare for people and resolve domestic & foreign water problems.
        4,000원
        155.
        2015.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        목적 : 본 연구에서는 뇌졸중 환자에게 Cognitive Orientation to daily Occupational Performance (CO-OP) 접근법을 적용하여 작업수행 향상에 효과가 있는지 알아보고자 하였다. 연구방법 : 연구대상은 외래재활치료를 받고 있는 2명이었고, 연구디자인은 ABA 개별 실험 연구설계로 실 시하였다. 기초선 기간(A)은 자료가 안정되는 시기까지 2회기, 중재 기간(B)은 주 2회 60분 동안 8회기, 재기초선 기간(A’)은 중재 후 기초선과 동일하게 2회기 실시하였다. 작업수행 향상을 검증하기 위해 총 세 가지 활동을 선정하였는데, 2개는 CO-OP접근법으로 훈련을 실시하였고, 나머지 1개 활동은 일반화를 알 아보기 위해 훈련하지 않았다. 결과측정 도구는 활동에 대한 수행의 질을 평가하는 Performance Quality Rating Scale (PQRS)과 수행 기술 및 독립성을 평가하는 Assessment of Motor and Process Skills (AMPS)을 사용하였다. 결과 분석은 작업수행의 질은 시각적 분석으로, 수행 기술 및 독립성은 AMPS 9 프로그램을 사용하여 비교하였다. 결과 : 작업수행의 질은 대상자 A와 B 모두에서 CO-OP접근법으로 훈련한 두 과제 모두 기초선에 비해 중재 기간에 향상되었고, 재기초선 기간에도 유지되었으며, 훈련하지 않는 과제도 수행의 질이 유지되는 경향을 보였다. 작업수행 기술의 독립성은 대상자 A는 기초선에 비해 운동기술은 0.35로짓, 처리기술은 0.04로짓 증가되었으며, 대상자 B는 운동기술 0.31로짓, 처리기술 0.55로짓 증가하였다. 결론 : CO-OP접근법은 뇌졸중 환자의 작업수행을 증진시킬 수 있는 중재방법이며, 지역사회에 거주하는 뇌졸중 환자에게 적용하여 긍정적인 결과를 도출할 수 있었다.
        4,000원
        156.
        2015.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study was to evaluate the effect of dual-task training with cognitive effort on the walking and balance functions of chronic stroke patients. The study included 14 chronic stroke patients, who were randomly divided into the experimental group (EG) and control group (CG), each with 7 patients. The EG performed the dual-task training with cognitive effort 3 times a week, 30 minutes for 4 weeks, where as the CG performed single-task training three times a week, for 30 minutes for 4 weeks. Outcome assessments were made with 10 m walk test, timed up and go test, 6 minutes walk test, and Berg balance scale. In within-group comparison, subjects from the EG showed significant differences in all variables (p<.05), while subjects from the CG showed only significant differences in 6 minutes walk test, and Berg balance scale (p<.05). Further, there was significant difference in the improvement rate of 10 m walk test. The findings suggest that the dual-task with cognitive effort may be beneficial for improving walking and balance functions of patients with chronic stroke.
        4,000원
        158.
        2015.05 구독 인증기관·개인회원 무료
        본 연구에서는 P E I 중공사막 표면에 고무상 고분자인 PDMS를 코팅한 모듈을 이용해 물-Butanol 혼합액의 분리특성을 향상시키는데 중점을 두었다. 먼저 A사에서 개발한 막 면적 890㎠ 모듈을 실험실 테스트 규모로 온도를 변화시키면서 농도 1wt.%의 1-Butanol - Water 혼합액에 대하여 투과증발 실험을 실시하였다. 반응온도 30℃에서 투과도는 58.6g/㎡hr을 나타내었고, 선택도는 9.2%를 나타내었다. 반응온도 40℃에서 투과도는 109.5g/㎡hr을 나타내었고, 선택도는 5.6%를 나타내었다. 반응온도 50℃에서 투과도는 206.9g/㎡hr을 나타내었고, 선택도는 3.0%를 나타내었다. 같은 방법으로 A사에서 개발한 막 면적 1㎡의 모듈을 파일롯 테스트에 적용하여 실험하여 본 결과 비슷한 경향을 보였다.
        160.
        2015.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study is to figure out current situation of safety education to improve safety awareness and practice in Korean school students. In order to do this, it is necessary to identify the current level of safety awareness and practice with the actual status of accident occurrence. Furthermore it is try to figure out the most influencing factors on the safety education for Korean middle and high school students. The 412 students were taken from a random sample. The samples were one class of 2nd grade students in five different middle schools and four different high schools in Seoul, Korea. The survey was conducted from 29 September 2010 through 15 October 2010. An additional samples for the questionnaires posted in web were collected. The 305 respondents from school students and 80 respondents from web survey were used to analyze for this study out of 800 respondents. SPSS was used to analyze the questionnaires. The overall safety-awareness score was relatively high at 4.56/5 for fire safety and 4.32/5 for traffic safety. Safety awareness was higher for girls than boys and also for high school students than middle school students. Safety education by parents at home gives a good impact on high safety practices. Safety awareness was improved by feeling of necessity for safety training. The safety prevention training provided during the class by teacher and home training by parents improved safety practice. The correct direction of safety education for younger students can be easier in future.
        4,600원