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      • 오래 잠그어 둔 수도에서 유출되는 철분의 함량

        송도미,이승희,신연욱,장혜경,오경숙,전현 효성여자대학교 가정대학 학도호국단 1984 家政大論集 Vol.3 No.-

        This study given here presents the results of an experimental investigation of the iron contents contained in the city water which not used for a long time in the winter. The measurements were performed after turning on and for flowing water in a moment. And the quantitative analysis was studied by chemical form and the results were as follows. 1. The content of the ferrous ion was 113.8-14.4 ppm, water soluble iron was 22.5-14.4 ppm and acid soluble iron was 150-10 ppm. 2. Iron contents of the each chemical from gradually reduced but it appeared high value than standard value of city water until five minutes.

      • 항균 활성을 가진 천연약재의 검색

        송형석,이지연,오성준,백남인,김해영 경희대학교 생명자원과학연구원 2000 硏究論文集 Vol.21 No.-

        We investigated the antimicrobial activity of the hot-water extracts and methanol extracts from medicinal plants. Sixty-two samples were tested by disk diffusion method at concentrations of 5,000ppm and 10,000ppm. Seven species of medicinal plants showed a significant antimicrobial activity against various food-borne microorganisms.

      • 이온교환체로서 Polyphenylene Sulfide Sulfonic Acid에 관한 연구

        전병광,손원근,서구원,맹학영,김동철,송해영 충남대학교 공업교육연구소 1994 論文集 Vol.17 No.1

        Sulfonated poly(phenylene sulfide)(S-PPS) was prepared by the reaction of poly(phenylene sulfide)(PPS) with fuming sulfuric acid. The sulfonation was confirmed by the high intensity band of the SO_3H group at 1190 cm^-1. Thermally crosslinked S-PPS was used for a cation exchange polymer with high thermal stability. The ion exchange capacity of soluble S-PPS(H-form) and insoluble S-PPS(H-form) was 5.16meq/g and 3.50meq/g, respectively. The ion exchange capacity and IR absorbance at 1190cm^-1 of S-PPS were decreased as the curing temperature was increased.

      • 방사능 동위원소(P-32)를 이용한 감귤나무의 인산 영양 진단법의 개발

        현해남,송성준,한해룡,유장걸,김형옥 제주대학교 방사능이용연구소 1989 연구보고 Vol.4 No.-

        산림의 인산 영양진단에 적용했던 P-32 bioassay법을 영양특성이 다른 감귤나무에 직접 이용이 곤란하므로 궁천조생과 흥진조생 감귤나무를 공시 재료로 하여 사경과 토경재배 그리고 포장실험을 통해서 P-32 bioassay법과 관련된 기초 연구를 수행하였다. 1. 사경과 토경으로 재배된 2년생 감귤나무(궁천, 흥진조생)로 부터 뿌리를 채취하여 P-32 bioassay를 실시한 결과 인산 공급량과 인흡수능간에 고도의 지수적인 역상관을 보였다. 2. 한편, 야외포장실험의 경우 5월에는 인흡수능과 시비량간에 일정한 경향을 보이지 않았으나 7월과 9월에는 시비량이 증가함에 따라 인 흡수능은 감소하는 경향을 보였다. 이는 감귤나무가 인산에 대한 시비반응이 느리다는 사실을 암시한다. 또한, 인흡수능을 계절별로 봤을 때, 7월과 9월보다는 5월에 가장 컸으며 수령이나 표고보다는 토양의 비옥도에 의해 영향을 받고 있었다. 3. 인흡수능-유효인산-엽중인농도간의 상관을 비교할때 인흡수능-유효인산과 인흡수능-엽중인농도간의 상관이 유효인산-엽중인농도보다 컸음을 감안할때 P-32 bioassay법이 감귤의 인산영양진단에 효율적인 방법이 되리라고 생각한다. 4. P-32 bioassay를 실시하기 위해 채취된 뿌리는 저온보다는 실온에 저장하는것이 근활성을 유지하는데 효과적이었다. 5. 감귤나무의 근활성은 수관밑의 0∼5㎝ 표층에서 가장 높았으며 이는 다년간 표층시비에 기인되어 양분흡수에 관여하는 세근이 표층에 분포되었음을 시사하는 것이다. P-32 bioassay technique which were developed for determining forest tree's P-deficiency was introduced in order to provide an effective diagnosis method of phosphorus status in citrus tree. Some modification of the methods should be done because the physiological characteristics of forest trees and citrus trees are quite different, even though the basic principle is same. Thus, the fundamental steps needed to conduct the phosphorus diagnosis were investigated in the sand culture, pot culture and field experiment using two cultivars “Kung-Chun” and “Hung-Jin” of citrus trees. 1) The exponential relationships were obtained both in Kung-Chun and Hung-Jin from the sand culture experiment and the pot experiment. 2) No correlation between fertilizer levels and bioassay P-uptake was found from the field experiment in May, but in July and September there was a tendancy that highter fertilization reduced bioassay P-uptake, even though that was not statistically significant. Seasonal changes bioassay P-uptake were observed from all the fields. Soil fertility was more closely related with bioassay P-uptake than tree ages and plantation altitudes. 3) The degree of correlation of bioassaay P-uptake and soil available phosphorus or P-contents in leaves was higher than that of soil available phosphorus and P-contents in leaves, indicating that P-32 bioassay method is more sensitive than the conventional ones(soil and plant analyses) to make the P-status diagnosis. 4) The kept ar room temperature had higher P-32 absorption activity than those at 4℃ 5) The active fine roots were distributed mostly at the upper layer(0∼5㎝) of soil and around at the distance of canopy edge.

      • KCI등재후보

        일 농촌지역에서 발기부전의 유병률 및 상관 요인

        홍진표,송해철,이무송,이창화,안준호,한오수,안태영,김성윤 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6

        Objectives : The purpose of this study was to investigate the prevalence of erectile dysfunction (ED) in a rural area of Korea and to examine the relationship between the prevalence and correlates of subjects. Method : This study was done as a part of the chronic disease survey of rural area by the Asan Foundation. Among 30 years or older population from Jung Eup, a rural area of Korea, 711 male subjects were sampled using a cluster probability sampling method. Trained interviewers visited and interviewed subjects aged 30 years or older with a structured interview. ED was categorized as 'none', 'mild', 'moderate', or 'severe' according to the ability to 'attain and/or maintain an erection satisfactory for sexual intercourse'. Response rate was 54.3% (N=386). Results : The age weighted prevalence of ED was 27.2% (minimal 14.1%, moderate 7.6%, severe 5.5%). Prevalence and severity increased with age. Liver disease and underweight were significantly (p<0.05) associated with ED. Smoking seemed to be correlated with ED, but did not reach statistically significant level. Conclusion : ED was highly prevalent in the rural community of Korea. Medical, sociodemographic, and lifestyle variables associated with ED may alert physicians to patients at risk for ED and offer insight to its etiology.

      • 다발성 대장암 간전이 환자의 간절제를 위한 새로운 시도

        주종우,김형철,임철완,신응진,조규석,유기원,송옥평,홍대식,박성진,조준희,이혜경,김희경,권계원,고은석 순천향의학연구소;Soonchunhyang Medical Research Institute 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

        Multiple bilobar liver matastases (MBLM) are the main cause of low resectability in the colon cancer liver metastases. The authors experienced one case of initially non-resectable colon cancer liver metastases. He was curatively and safely treated with a two-stage hepatectomy using the new method of future remnant liver volume growing. A 54-year-old man was referred to our department with the sigmoid colon cancer combined with MBLM, which were checked in two small metastatic lesions in the left lobe and five large sized lesions in the right lobe in the computed tomogram (CT). A laparoscopic assisted anterior resection was primarily performed. We performed the 1^(st) stage hepatectomy 3 weeks after the colon resection. Intra-operative Ultrasonogram (US) found 9 small superficial metastatic lesions in the left lobe. All that lesions were completely removed by non-anatomical wedge resection. An occlusion ballon catheter was placed in the right portal vein through a small branch of the inferior mesenteric vein at that time. The future remnant liver volume was sufficiently increased 3 weeks after the 1^(st) hepatectomy. A right hepatectomy was safely performed 22 days after the 1^(st) hepatectomy. The patient received a regional chemotherapy (interleukin2 based immuno-chemotherapy through hepatic artery) for 4 months, then received 9 cycles of systemic chemotherapy (biweekly Oxaliplation, leucovorin, plus 5-fluorouracil) without any recurrence evidence.

      • 연장 가골에 골 이식 대체물 투여가 골 경화에 미치는 영향 : 가토 경골에서의 방사선 및 골 밀도의 변화 Changes of Radiography & Bone Mineral Density in the Tibia of Rabbits

        오창욱,김풍택,박병철,송해룡,박일형,백준호,박형진 경북대학교 병원 2003 경북대학교병원의학연구소논문집 Vol.7 No.1

        목적 : 골 연장술 후 생기는 연장 가골에 황화 칼슘과 이종 이식골을 투여하여 골 경화 속도에 대한 영향을 알아보기 위한 실험이었다. 연구대상 및 방법 : 성장중인 뉴질랜드 화이트 토끼(2.0-2.5㎏)의 경골 간부에 골막을 보호하고, 절골술을 시행하고, 5일간의 휴지기후 외고정 장치를 이용하여 1주일 동안 7㎜가 연장될 때까지 하루 1㎜씩 2회의 리듬을 가지고 골 연장을 실시하였다. 제1 실험 군 7마리에는 연장이 끝난 직후 황화 칼슘(Osteoset^(ⓡ), Wright medical USA) 1정, 제 2 실험 군 7마리에는 이종 이식골의 일종인 Lubboc 5㎟을 각각 연장된 가골 부에 주입하고, 단순 연장한 대조군 7마리와 함께, 방사선 및 골 밀도비를 측정하고 추시하여, 골 경화의 진행속도를 비교하였다. 방사선 촬영은 전후면 및 측면사진을 1주 간격으로 촬영하였고, 골밀도 측정은 DEXA(dual energy X-ray absorptionmetry, Lunar^(ⓡ)) 장치를 2주일 간격으로 시행하였다. 결과 : 방사선 소견상, 제 1실험군의 연장가골의 완전 경화시간은 평균 14주, 제 2실험군은 154 주로 각각 대조군의 16.9주보다 단축되었으며, 골 밀도 비에서도, 두 실험군에서 최고치가 대조군의 값보다 높고, 최고치까지의 경과기간도 빨랐다. 결론 : 본 연구에서 연장 가골에 황화칼슘 및 이종 이식골의 투여가 골 경화의 기간을 단축시킬 수 있고, 외고정 장치의 빠른 제거에 도움이 될 수 있음을 알았다. Purpose : This study was designed to know the effect of calcium-sulfate and xenograft on the distracted callus after lengthening. Materials & Methods : We had operation of subperiosteal osteotomy and external fixation on the tibial diaphysis of young New Zealand White rabbits(2.0-2.5㎏); after 5 days of latency period, 7㎜(1㎜/day, 2times/day) of tibial lengthening was reached in a week. At 1 week after lengthening, the 1st experimental group of 7 rabbits received a pellet of calcium sulfate(Osteoset, Wright medical, USA) in the distraction gap, and the 2nd experimental group of 7 rabbits received 5㎜ 2 of xenogrfat(Lubboc) in the distraction gap. But, the control group of 7 rabbits did not receive any of above materials. We compared three groups with the changes of radiographic findings at every week and bone mineral ratio(DEXA) at every two weeks. Results : The time to complete consolidation of distraction callus of both experimental group(calcium sulfate;14 weeks, xenograft; 15.4 weeks) was shorter than that of control group(16.9 weeks) in radiographic findings. Maximum value of bone mineral ratio of distraction callus was higher and the time to reach the highest value was also shortened in the both experimental group compared to control group. Conclusion : By use of bone substitutes as like calcium sulfate or xenograft in the distraction callus with external fixator, it may be possible to shorten the consolidation period and the fixator-wearing period.

      • KCI등재

        소아에서 발생한 Calcaneal Petechiae (Black Heel) 1예

        이호섭,우상혁,유화정,유동수,송해준 대한피부과학회 2004 대한피부과학회지 Vol.42 No.1

        Calcaneal petechias (black heel) is a traumatic lesion affecting the back of posterolateral aspect of the heel. An asymptomatic, pigmented, macular lesion is found on one or both heels immediately above the hyperkeratotic border of the foot. It is caused by any sport, such as basketball, tennis, or football, that leads to slamming of the foot against the shoe. Calcaneal petechilae is probably more common than is realized. As it is usually symptomless, it may be disregarded or only observed by chance. The importance of the lesion lies in its clinical resemblance to a malignant melanoma. We report a case of calcaneal petechiae which was confused clinically with a melanoma. (Korean J Dermatol 2004;42(1):84~86)

      • KCI등재

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