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        검색결과 12

        3.
        2019.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Background: Stress urinary incontinence (SUI) is an involuntary leakage of urine from the urethra when intra-abdominal pressure increases, such as from sneezing, coughing, or physical exertion. It is caused by insufficient strength of the pelvic floor and sphincter muscles, resulting from vaginal delivery, obesity, hard physical work, or aging. The pelvic floor electrical stimulator is a conservative treatment generally used to relieve the symptoms of urinary incontinence. it recommended to applied before surgery is performed. Objects: The purpose of this study was to determine if the transcutaneous electrical stimulation (TCES) would be effective for the physiological symptoms and psychological satisfaction of women with SUI for an 8-weeks intervention. Methods: Easy-K is a specially designed user-friendly TCES. Five female who were diagnosed with SUI by a gynecologist but who did not require surgical intervention were included in this study. Intervention was implemented over an 8-week period. Outcome measures included vaginal ultrasonography, Levator ani muscle (LAM) contraction strength, incontinence quality of life (I-QOL), and female sexual function index (FSFI) questionnaires. Results: The bladder neck position significantly decreased across assessment time. Funneling index and urethral width significantly decreased after 8 weeks of intervention (p<.05). The bladder necksymphyseal distance and posterior rhabdosphincter thickness statistically increased and the anterior rhabdosphincter thickness showed a tendency to increase. All participants demonstrated a significant increase in the LAM contraction score across three assessment times (p<.05). Although the total score of the I-QOL did not show significant improvement, it steadily increased and among I-QOL subscales, only the “avoidance” subscale showed statistical improvements (p<.05). The total score of the FSFI statistically improved and the “desire” score significantly changed (p<.05). Conclusion: The TCES is recommended for women who want to apply conservative treatments before surgery and who have suffered from SUI in aspects of sexual function and quality of life.
        4,000원
        4.
        2017.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In the 21st century, information and communication technology (ICT) worldwide presents a new vision for agriculture. Time and place, as well as the high-tech industry, to overcome barriers to the fusion of the so-called "smart agriculture," are changing the agricultural landscape. Core container production in precision agriculture for mushroom cultivation, optimal temperature, humidity, irradiation, self-regulation of factors such as carbon dioxide, and environment for mushroom cultivation were adopted. Lentinula edodes (shiitake) is an edible mushroom native to East Asia, cultivated and consumed in many Asian countries. It is considered to be medicinal in certain practices of traditional medicine. We used different controlled light sources (Blue-Red-White-combined LED, blue LED, red LED, and fluorescent light) with different LED radiation intensities (1.5, 10.5, and 20.5 μmol/㎡s for LEDs) to compare growth and development. Mushrooms were treated with light in a 12-hour-on/ 12-hour-off cycle, and maintained in a controlled room at 19~21°C, with 80~90% humidity, and an atmospheric CO2 concentration of 1,000 ppm for 30 days. Growth and development differed with the LED source color and LED radiation intensity. Growth and development were the highest at 10.5 μmol/㎡s of blue LED light. After harvesting the fruit bodies, we measured their weight and length, thickness of pileus and stipe, chromaticity, and hardness. The 10.5 μmol/㎡s blue-LED-irradiated group showed the best harvest results with an average individual weight of 39.82 g and length of 64.03 mm, pileus thickness of 30.85 mm and pileus length of 43.22 mm, and stipe thickness of 16.96 mm with fine chromaticity and hardness. These results showed that blue LED light at 10.5 μmol/㎡s exerted the best effect on the growth and development of L. edodes (shiitake) mushroom in the ICT-system container-type environment.
        4,000원
        7.
        2017.10 구독 인증기관·개인회원 무료
        Information and communication technology(ICT) around the world in the 21st century presents a new vision of agriculture. Time, place, and the high-tech industry to overcome barriers to the fusion of the so-called “smart agriculture” is changing the landscape of agriculture. Precision Agriculture’s core container production for the mushroom cultivation temperature, humidity, irradiation, self-regulation, such as carbon dioxide, the optimal environment for mushroom cultivation was implemented. The Lentinula edodes (shiitake) is an edible mushroom native to East Asia, which is cultivated and consumed in many Asian countries. It is considered a medicinal mushroom in some forms of traditional medicine. The fungus was first described scientifically as Agaricus edodes by Miles Joseph Berkeley in 1877. It was placed in the genus Lentinula by David Pegler in 1976. We controlled different light source (Blue-Red-White combined LED, blue LED, red LED and fluorescent light) with different intensity of LED irradiation (1.5, 10.5, 20.5 μmol/m2s for LEDs) to compare growth and development. Lights were treated with 12 hour on/ 12hour off cycle maintained in a controlled room with 19 ~ 21oC temperature, 80~90% humidity, and 1,000 ppm CO2 atmosphere concentration for 30 days. Growth and development differed from the LED color source and intensity of LED irradiation. Growth and development was most effective in 10.5 μmol/m2s for blue LED. All LED light sources showed less growth and development in lowest intensity of irradiation, which indicates that higher than 1.5 μmol/m2s for LED is not effective. After harvesting fruit bodies, we measured their weight and length, thickness of pileus and stipe, chromaticity, and hardness. 10.5 μmol/m2s blue LED group was the best result of harvest with average individual weight (24.7g) and length (61.98mm), thickness (29.93mm) of pileus and length (33.60mm), thickness (16.86mm) of stipe with fine chromaticity, hardness. This results show us that 10.5 μmol/m2s blue LED was the best effect on growth and development of Lentinus edodes (shiitake) mushroom’s ICT system container type environment.
        8.
        2017.10 구독 인증기관·개인회원 무료
        Information and communication technology(ICT) around the world in the 21st century presents a new vision of agriculture. Time, place, and the high-tech industry to overcome barriers to the fusion of the so-called “smart agriculture” is changing the landscape of agriculture. Precision Agriculture’s core container production for the mushroom cultivation temperature, humidity, irradiation, self-regulation, such as carbon dioxide, the optimal environment for mushroom cultivation was implemented. Auricularia auricula-judae, known as the Jew's ear, wood ear, jelly ear or by a number of other common names, is a species of edible Auriculariales fungus found worldwide. The fruiting body is distinguished by its noticeably ear-like shape and brown colouration. The fungus can be found throughout the year in temperate regions worldwide, where it grows upon both dead and living wood. We controlled different light source (Blue-Red-White combined LED, blue LED, red LED and fluorescent light) with different intensity of LED irradiation (1.5, 10.5 and 20.5 μmol/m2s for LEDs) to compare growth and development. Lights were treated with 12 hour on/ 12hour off cycle maintained in a controlled room with 19 ~ 21oC temperature, 85~95% humidity, and 1000ppm CO2 atmosphere concentration for 30 days. Growth and development differed from the LED color source and intensity of LED irradiation. Growth and development was most effective in 1.5 μmol/m2s irradiation for blue LED. All LED light sources showed less growth and development in highest intensity of irradiation, which indicates that higher than 20.5 μmol/m2s for LED is not effective. After harvesting fruit bodies, we measured their weight, length, width, thickness and chromaticity of fruit bodies. 1.5 μmol/m2s blue LED group was the best result of harvest with average individual weight (5.38g), length (65.37mm), width (56.87mm) and thickness (13.51mm) with fine chromaticity. This results show us that 1.5 μmol/m2s blue LED was the best effect on growth and development of Auricularia auricula-judae mushroom’s ICT system container type environment.
        9.
        2015.06 구독 인증기관 무료, 개인회원 유료
        According to the statistics of the last five years, fishing vessel accidents accounted for about 80% of collisions of all ships and has led to many casualties. To prevent collision accidents, it is important to assess the collision risk potential related to the sailing characteristics of fishing vessels. The authors represented the traffic patterns of vessels that sail around Wando waters based on Automatic Identification System (AIS) and Radio Detecting and Ranging (RADAR) data. The authors analyzed the statistical near miss data between fishing vessels and non-fishing vessels in the Wando Vessel Traffic Services (VTS) area and assessed the risk of ship collisions. From this research, the authors identified waters with a high risk of ship collisions. The analyzed results can be used as basic data to develop collision prevention strategies which aides the decision making and efficient operation of VTS officers (VTSO.)
        4,000원
        10.
        2007.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        이 논문에서는 게이트 절연막 위에 vapor deposition polymerization(VDP)방법을 사용하여 성막한 유기 점착층을 진공 열증착하여 유기 박막 트랜지스터(OTFTs)소자를 제작할 수 있음을 증명하였다. 우리가 제작한 Staggered-inverted top-contact 구조를 사용한 유기 박막 트랜지스터는 전기적 output 특성이 포화 영역안에서는 포화곡선을, triode 영역에서는 비선형적인 subthreshold를 확실히 볼 수 있음을 발견했다. 0.2μm 두께를 가진 게이트 절연막위에 유기 점착층을 사용한 OTFTs의 장 효과 정공의 이동도와 문턱전압, 그리고 절멸비는 각각, 약 0.4cm2/Vs, -0.8V, 106 이 측정되었다. 게이트 절연막의 점착층으로써 폴리이미드의 성막을 위해, 스핀코팅 방법 대신 VDP 방법을 도입하였다. 폴리이미드 고분자막은 2,2bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride(6FDA)와 4,4'-oxydianiline(ODA)을 고진공에서 동시에 열 증착 시킨 후, 그리고 150℃에서 1시간, 다시 200℃에서 1시간 열처리하여 고분자화된 막을 형성하였다. 그리고 점착층이 OTFTs의 전기적 특성에 주는 영향을 설명하기 위해 비교 연구하였다.
        4,000원
        11.
        2018.10 KCI 등재 SCOPUS 서비스 종료(열람 제한)
        양송이 유통에 적합한 필름 포장방법 연구를 위해 저장온도 및 필름 산소투과도에 따른 양송이 품질변화를 분석하였다. 실험에 이용된 필름은 PVC와 OPP(OTR 1,000, 6,000, 10,000, 20,000 mL/m2/day/atm)이고 저장 온도는 4, 8, 12, 20℃로 설정하였다. 분석 결과, 중량감소율은 대조구, PVC, OPP 순으로 높았다. 갓 개열은 온도 별로 결과가 다르게 나타나 8℃ 이상에서 필름 처리구의 갓 개열 억제 효과가 나타났고 12℃에서는 필름 내부의 산소 농도가 낮을수록 억제 효과가 높은 경향이었다. 필름 중 OPP20000은 20℃에서 갓 개열 억제 효과가 나타나지 않았다. 대 신장은 모든 온도에서 전반적으로 필름 처리구가 대조구에 비해 억제되었으나 예외적으로 OPP20000은 대 신장이 대조구보다 오히려 촉진되는 결과였다. 조직의 경도는 필름 중 OPP1000이 다른 처리구에 비해 유의하게 높았다. 버섯의 내외부 색도는 모두 OPP 필름의 버섯이 대조구와 PVC에 비해 색 변화가 큰 경향이었다. 전반적으로 OPP는 중량감소, 갓 개열, 대 신장, 조직 경도에서 대조구에 비해 품질이 유지되는 효과가 있었으나 온도 및 산소투과도에 따라 효과의 차이가 있었고 OPP20000은 조직 생장 억제와 관련된 효과가 나타나지 않았다. OPP1000과 OPP6000은 OPP 중 조직 생장 억제에 가장 효과적이었으나 내부 단면에서 조직손상 및 수침 현상과 같은 장해가 나타났다. 한편 PVC 필름은 중량감소, 갓 개열, 대 신장이 대조구에 비해 변화가 적었고 내외부 갈변은 OPP보다 변화가 적어 전반적인 품질변화가 적은 것으로 분석되었다.
        12.
        2016.05 KCI 등재 서비스 종료(열람 제한)
        콘크리트는 내화재료로서 우수한 성능을 발휘하지만 화재가 지속됨에 따른 재료특성 변화 또는 성능저하의 위험을 갖는다. 이 연 구는 실물모형 철근 콘크리트 (RC) 보를 활용하여 비재하 화재 실험을 수행하여 화재노출 전후의 콘크리트 및 보강철근의 재료특성을 실험적 으로 분석한 연구이다. 화재실험에 사용된 보는 길이 4 m의 RC 보로서 KS F 2257 화재실험 규격에 따라 시험 체를 제작 및 화재실험을 수행하 였다. 화원의 가력은 ISO 834의 표준화재 곡선을 사용하였으며 보 가열부에서의 온도를 계측하고자 하면 및 측면에 열전대를 설치하였다. 실 험결과, 화재에 노출된 화재 코어 공시체의 경우 약 11 MPa로 약 66%의 강도저하가 발생하였다. 화재에 직접 노출된 철근의 경우 노출되지 않 은 철근에 비해 약 17%에 해당하는 75 MPa의 항복강도 저하를 나타낸 것으로 분석되었다. 철근의 경우 콘크리트라는 내화피복에 의하여 보호 되어 약 4시간의 화재 실험에서도 온도는 한계온도의 최댓값인 649°C를 크게 상회하지 않는 것으로 나타났다.