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        The Identification of Aucklandiae Radix, Inulae Radix, Vladimiriae Radix and Aristolochiae Radix, Using Macroscopic, Microscopic and Physicochemical Methods

        Yoon, Jee-Hyun,Park, Ha-Yeong,Kim, Tae-Ju,Lee, Seung-Ho,Kim, Jung-Hoon,Lee, Guem-San,Kim, Hong-Jun,Ju, Young-Sung The Society of Korean Medicine 2014 대한한의학회지 Vol.35 No.4

        Objectives: This study aimed for establishing the discriminative criteria for Aucklandiae Radix, Inulae Radix, Vladimiriae Radix and Aristolochiae Radix, which can be confused as 'Mokhyang', because of similar appearances and synonyms. Methods: Morphological characteristics of dried herbal medicines were compared by macroscopic observation. To examine microscopic features of 'Mokhyang', paraffin embedding and the staining by using Ju's method were conducted. Physicochemical experiments were performed using HPLC analysis and antioxidant assay. Results: The types of stem, phyllotaxy and leaf shape were chosen as macroscopic criteria and the size, oil spots, color and root top as well as phloem and central cylinder were compared using microscopic features. The HPLC results showed different amounts of costunolide and dehydrocostuslactone among Aucklandiae Radix, Inulae Radix and Vladimiriae Radix. However, Aristolochiae Radix only contained aristolochic acid. The antioxidant assays also showed that Vladimiriae Radix exhibited strongest antioxidant activity followed by Aucklandiae Radix, Inulae Radix and Aristolochiae Radix. Conclusions: These results demonstrate that macroscopic, microscopic and physicochemical methods would be useful tools for the discrimination of 4 kinds of 'Mokhyang'.

      • CIE1931 색도좌표에서 경계선과 S-모양의 변환 곡선을 이용한 화질개선을 위한 색상변환 시스템의 설계

        하주영,김주현,강봉순 東亞大學校附設情報技術硏究所 2005 情報技術硏究所論文誌 Vol.12 No.2

        In this paper, we propose the color conversion system on the CIE1931 chromaticity-coordinate diagram by using boundary lines and S-shaped curves to emphasize blue and red colors. The proposed system prevents specific colors, such as human skins, from changing by using boundary lines that divide non-conversion areas from conversion areas. The colors in the conversion areas vary along quadratic curves with S-shaped conversion curves based on conversion ratios. The loci of the quadratic curves are very similar to the arc of the white-point line, known as the Planckian locus. The S-shaped curves are selected to change the bluish (or reddish) color to more bluish (or more reddish), while the areas around white color are not changing. The proposed system changes the colors into more bluish and reddish by moving positions of the colors toward left or right on the curves. The proposed system is also experimentally demonstrated with Xilinx Virtex FPGA XCV2000E-6BG560 and the TV set.

      • 에러가 없는 제곱근기와 대역제한필터를 사용한 SECAM Video Decoder를 위한 색상 및 밝기 신호의 복원장치

        하주영,김주현,강봉순 東亞大學校附設情報技術硏究所 2005 情報技術硏究所論文誌 Vol.12 No.2

        In this paper, we propose the SECAM video decoder system using error-free square root and band pass filter (BPF). SECAM uses frequency modulation (FM) to transmit the Db and Dr color difference information, with each component having its own subcarrier, so input signal of decoder, CVBS, has various frequencies whose bandwidth is 6.0 MHz. The proposed SECAM decoder uses two differentiators, trigonometric functions and as error-free square root to demodulate color information in chrominance processing. The BPF in decoder is used for removing color noise in chrominance and dividing CVBS into chrominance and luminance. The proposed system is experimentally demonstrated with Altera FPGA APEX20K1000EBC652-3 and TV-card available for SCEAM.

      • 천마의 GABA-benzodiazepine 수용체 복합체에 대한 조절작용

        하정희,이동웅,어경윤,하정상,김현주,용철순,허근 영남대학교 약품개발연구소 1998 영남대학교 약품개발연구소 연구업적집 Vol.8 No.-

        Methanol extract of G. elata inhibited the binding of [³H]Ro15-1788, a selective benzodiazepine receptor antagonist, to benzodiazepine receptor of rat cortices. Saturation experiments followed by Scatchard analysis of the results showed that the inhibition of [³H]Ro15-1788 binding by G. elata. appeared to be competitive. These competitive inhibiton of the butanol fraction was observed to be higher than the methanol extract. Methanol extract of G. elata inhibited a [³H]flunitrazepam, a selective benzodiazepine receptor agonist, binding to benzodiazepine receptor. GABA significantly enhanced the inhibition of [³H]flunitrazepam binding by G. elata, and these "positive GABA shift" supported the strong possibility of agonistic activity to benzodiazepine receptor. Butanol fraction was observed to be higher than crude extract by methanol in an agonistic activity to benzodiazepine receptor, furthermore enhanced the binding of [³H]SR95531 to GABA_(A) receptor. Butanol fraction of G. elata significantly diminished the pentylenetetrazole-induced lethality of mice. From these results, it can be concluded that substance or substances with neurochemical properties characteristic of a benzodiazepine receptor agonist may be important components, and contribute to the anticonvulsant property of G. elata.

      • 모유수유에 영향을 미치는 요인 : 부산 지역 보건소 방문자에 대한 설문조사 연구

        이현주,조영하,김원중 인제대학교 2010 仁濟論叢 Vol.25 No.1

        The purpose of this study was to find out the status of breast-feeding practice, and to determine the factors affecting intention, practice and duration of breast-feeding for the mothers of babies, therefore contributing to provide effective measures for successful breast-feeding practice and further to promote breast- feeding practice. The data were collected from 200 mothers of babies less than 24 months old, visiting 4 health centers in Busan from February 23 to March 31, 2009 , and analyzed with Χ²-test, t-test, ANOVA, and logistic or multiple regressions by using SPSSWIN 13.0 program. The following results were obtained. First, the rate of practicing breast-feeding among mothers studied was 87.0%, and, however, the duration of breast-feeding was 6 months or less for more than half(51.7%). The most common reason for discontinuing breast-feeding was due to decreasing in milk volume with bottle-feeding and going through the weaning period for 21.3% each. Second, the degree of intent to breast-feeding during the pregnancy of the present baby was scored as 6.87 points out of 10 in total , and significantly higher in case of the first child and for the mothers not working. Third, regarding the factors affecting the practice of breast feeding, the rate of practicing breast-feeding was significantly higher in case of the first child and for the mothers with the past experience of breast-feeding. Forth, the duration of continuing breast-feeding became significantly longer as the intent to breast-feeding during the pregnancy was stronger. The above results suggested that pertinent measures should be deliberated to promote the duration of breast-feeding since the practicing rate for breast-feeding was apt to be high, and the duration to be short, however. It is urgent to prepare the measures to strengthen the intent to breast-feeding in order to promote the duration of breast-feeding, and especially to make efforts tprovide social and systematic ways to solve the problems facing in the real life for the working mothers to have the intent to breast-feeding, It also should be addressed to prepare publicity or education programs and effective measures for the women with the first child birth having intention to be able to practice breast-feeding.

      • Squalene Adjuvant를 이용한 단백질 항원의 세포성 면역반응 유도

        도현주,김성열,안종성,하영주,이승찬,오재택,장명호,정홍석,문홍모,박해준 大韓免疫學會 1996 大韓免疫學會誌 Vol.18 No.3

        To investigate the role of adjuvant for cytotoxic T lymphocytes (CTL) induction, squalene-based adjuvant was studied its capability eliciting to the induction of cellular immunity as well as humoral immunity to exogeneous proteins. Ovalbumin (OVA) was used as model proteins. It was demonstrated that antigen formulation consisted of metabolizable oil squalene mixed with Tween 80 and pluronic L121 (S/TJ121) could induced the antigen specific CTL responses and antibodies irrespective of immunization routes in mice. We also demonstrated that this antigen formulation was a inducer of CD8+, major histocompatibility complex(MHC) class I-restricted, and antigen-specific C;1'Ls. These data suggest that the squalene-based emulsion system is a potent adjuvant inducing cellular immunity as well as humoral immunity.

      • 플라이애쉬 콘크리트의 特性에 미치는 굵은 骨材 最大値數의 影響에 관한 實驗的 硏究

        김덕현,유영주,이상수,송하영,김을용 한밭대학교 2004 한밭대학교 논문집 Vol.21 No.-

        In this study, the experiment was carried out to investigate and analyze the influence of coarse aggregate's maximum size and Fly Ash replacements ratio on the properties of concrete. The main experimental variables were water/cement ratio 45 and 65(%), maximum size of coarse aggregate 15, 25 and 40(mm), Fly Ash replacements ratio 0, 10, 20(%). According to the test results, the principal conclusions are summarized as follows. 1) The slump and flow of fresh concrete were found to be higher in the order of maximum size of coarse aggregate 15, 25 and 40(mm), also in the order of Fly Ash replacements ratio 0, 10, 20(%). 2) The compressive strength of hardened concrete were found to be lower in the order of maximum size of coarse aggregate 15, 25 and 40(mm). While, Fly Ash replacements ratio increases in age 7days, showed tendency that compressive strength increases together. but, age 28, 56(day) were showed opposite tendency.

      • KCI등재

        방조제 건설 전후에 목표해역의 오염물질 확산 메커니즘

        강주환,임병선,이점숙,김종욱,임현식,김하송 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.4

        육상으로부터 목포해역으로 영양염류가 유입되는 곳과 간조시 갯벌을 통과한 지역의 pH, DO, COD, HN_4-N, NO_3-N 및 T-P 함량을 측정하고 RMA 모형과 FIT모형을 사용하여 방조제 건설에 따른 유기물질의 확산양태를 모의하였다. 목포 인근해역의 수질은 양호하였으며 특히, 갯벌 통과 후 질소원은 증가하였고 COD와 T-P는 감소하였다. 영암/금호 방조제 건설에 따라 방조제 인근해역에서 해수이동양상이 급격히 둔화되었고 목포해역의 북쪽과 4단계 방조제 해역간의 해수교환이 크게 증가하였으며 목포해역의 남쪽에서는 외해수와의 해수교환이 크게 감소하였다. 결과적으로 방조제 건설로 인해 방조제 인접해역에 축적되는 유기물질이 크게 증가하여 목포해역 내외부의 유기물질 확산양상에 적지 않은 영향을 미치고 있다. The pH, Do, COD, NH_4-N, NO_3-N and T-P of sea water were measured in both sites effluencing sewage and passing through salt marsh, and also the RMA and FIT model were applied to the Mokpo coastal zone to analyze the changes of pollutant dispersion mechanism by constructions of the seawalls. The nitrogen source of sea water in the sites passing through salt marsh increased but COD and T-P decreased. After constructions of the Youngam/Kumho seawalls, tidal velocity was decreased and exchange of sea water was very increased between the north of the Mokpo coastal zone and the 4th seawall region and was very decreased between the south of the Mokpo coastal zone and outer sea water. The results of simulation on diffusion of organic matter indicate that most region of the Mokpo coastal zone will suffer deepened contamination after the constructions.

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