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      • KCI등재

        현대 스카쟌 재킷에 나타난 자수 문양에 관한 연구

        송아라 ( Song A Ra ), 금기숙 ( Key-sook Geum ) 한국기초조형학회 2016 기초조형학연구 Vol.17 No.4

        스카쟌은 미군 해군용 점퍼에 일본 자수 문양을 새긴 기념품 재킷이다. 1970년대 일본 스트릿 패션에서 유행했던 스카쟌 재킷은 최근 현대 컬렉션에 등장하면서 고급문화로 변모하여 디자이너들의 큰 관심을 받고 있다. 또한 스카쟌 재킷은 자수 문양의 도안과 기법, 색채 그리고 소재에 따라 이미지가 다양하게 분류되면서 그 특성을 표출한다. 또한 동서양의 문화를 융합하여 표현해 시각에 따라 참신하면서 이국적인 감성을 보여준다. 따라서 본 연구는 자수 문양을 활용한 1940-50년대 스카쟌 재킷의 전반적인 이해를 토대로 현대 패션에 나타난 스카쟌 재킷의 조형적 분석의 틀을 마련하고 조형성을 조사하였다. 본 연구에서 스카쟌 재킷에 표현된 자수 문양을 조형적으로 분석한 결과는 다음과 같다. 첫째, 스카쟌 재킷에는 자연을 사실적으로 표현한 자수 문양이 가장 많이 나타났다. 둘째, 수공예적인 표현이 가능한 기계자수는 다양한 기법을 손쉽게 표현하여 복잡한 패턴의 문양을 아름답게 표현했다. 셋째, 자수 문양을 표현한 실의 색채에서 색상대비와 명도대비를 극대화시킨 입체적인 효과 등이 나타났다. 넷째, 현대 패션에 나타난 스카쟌 재킷에는 혼합 소재인 스팽글, 비즈, 와펜 등을 사용함으로써 자수 문양의 사실적인 표현뿐만 아니라 추상적인 시각적 효과를 더했다. 이러한 결과, 현대 패션에서 표현된 스카쟌 재킷의 조형적 특성은 사실적 문양의 수용과 함께 집단과 소속의 상징을 표출했으며 동양의 자연물에 나타난 사실적인 문양을 수공예적으로 나타내어 이국적 환상을 표현하였음을 알 수 있었다. 또한, 혼합 소재의 활용으로 인해 해학적 유머의 향유가 도출되었다. 현대의 패션은 다양한 문화의 융합을 독자적으로 표현하고 있다. 이러한 흐름에 맞춰 독자적인 디자인 아이템인 스카쟌 재킷에 나타난 자수 문양에 관한 연구의 영역을 확대하여 자수 문양 연구에 기초자료로 활용되기를 기대한다. Sukajan is a souvenir jacket that is carved the Japanese embroidery pattern on a jumper for the U.S. Navy. Sukajan jacket, which had been popular in the Japanese street fashion in the 1970s, was changed into luxury culture with appearing recently in modern collection, thereby getting designers`` great concern. Also, as the Sukajan jacket is diversely classified an image depending on design, technique, color and material of the embroidery pattern, its characteristic is expressed. Also, fresh and exotic sensitivity is shown depending on a sight due to converging and expressing culture in the East and the West. Accordingly, this study arranged a frame of formative analysis on Sukajan jacket, which was shown in modern fashion, and surveyed the formativeness, based on the general understanding about Sukajan jacket in the 1940s-50s using the embroidery pattern. The following are the results that this study formatively analyzed the embroidery pattern, which was expressed in Sukajan jacket. First, Sukajan jacket was indicated the embroidery pattern the most that realistically expressed nature. Second, mechanic embroidery available for the handicraft-based expression easily expressed various techniques, thereby having beautifully expressed the complex pattern. Third, a dimensional effect was indicated that maximized the color contrast and the brightness contrast in a tone of a thread that expressed embroidery pattern. Fourth, the Sukajan jacket, which was shown in modern fashion, was used spangle, beads and wappen, which are the mixed materials, thereby having added an abstractly visual effect, not just the realistic expression of embroidery pattern. As a result of this, the formative characteristic of Sukajan jacket, which was expressed in modern fashion, represented a symbol of a group and a membership along with accepting the realistic pattern, and indicated a realistic pattern, which was shown in a natural object of the East, based on handicraft, thereby having been able to be known to have expressed exotic fantasy. Also, the enjoyment of humor was drawn owing to the application of the mixed materials. The contemporary fashion is independently expressing the convergence of diverse cultures. This study is expected to be utilized as basic data in expanding the sphere of a research on embroidery pattern that was shown in Sukajan jacket, which is an independent design item, in line with this flow.

      • KCI우수등재

        잔디 우점 초지에 있어서 Orchardgrass 의 정착에 미치는 경합요인에 관한 연구

        김동암 한국축산학회 1972 한국축산학회지 Vol.14 No.3

        A series of four separate experiments was conducted with the following major aimes. 1. To evaluate the occurrence of competition between existing Zoysia japonica and oversown pasture species under field conditions. 2. To examine the toxic effects of leachate produced from underground parts of Zoysia japonica in water cultures. 3. To determine the effects of root and shoot competition of Zoysia japonica on the establishment of orchardgrass seedlings in pot cultures. 4. To evaluate the roles of both soil moisture and nitrogen as root competitive factors between existing Zoysia japonica and oversown orchardgrass seedlings in pot cultures. These experiments were designated and described as Experiment 1 - Field Test, Experiment 2 - Water Culture Test, Experiment 3 - Pot Test and Experiment 4 - Pot Test. Three species, orchardgrass, ky 31 fescue and ladino clover were used in Experiment I, the above two grasses and Italian ryegrass were also used in Experiment 2 and only orchardgrass was used in Experiment 3 and 4 as test plants. However, as an aggressor plant, Zoysia japonica was used in all experiments. With one exception, three experiments were carried out in a semi-controlled vinyl house environment and all work was done at the Livestock Farm, College of Agriculture, Seoul National University, Suwon, Korea. The summarized results of each experiment are as follows; Experiment 1. A study of factors influencing grasses and clover establishment and survival on native pastures dominated by Zoysia japonica was made on infertile native grassland and also an evaluation was made of the occurrence of competition between existing Zoysia japonica and oversown pasture species. Nitrogen and lime (Ca(OH)₂) depressed significantly establishment of clover. Lime depressed clover establishment was probably initially due to a strong alkalization of surface soil. Lime, nitrogen and phosphorus had no significant effect on initial establishment of grasses in bath presence and absence of Zoysia japonica, but lime aided clover survival in both presence and absence of herbage cover and phosphorus aided survival of grasses in absence of cover. Dense herbage cover had little effect on clover establishment and survival, indicating no competition between clover and existing Zoysia japonica, but had a depressing effect on grass establishment and survival, indicating competition between sown grasses and Zoysia japonica. It is considered that failure of grasses to become established amidst dense Zoysia japonica may be attributed to competition from existing Zoysia japonica. Experiment 2. To determine the mechanism of root competition by Zoysia japonica experiments were carried out on the production of toxins from its underground parts. Zoysia japonica was used in the study mainly because of its reputation as a strong competition in a previous experiment. In these experiments to test the production of toxins from Zoysia japonica, seedlings of orchardgrass, ky 31 fescue and Italian ryegrass were treated with leachates of roots and rhizomes, and seeds and seedlings of the above grasses were germinated and grown in close contact with living Zoysia japonica roots. These experiments showed that there were no evidence of any appreciable growth promotion or inhibition by Zoysia japonica. Therefore, it is evident that the competition between Zoysia japonica and oversown grasses is not due to the production of toxic substances from Zoysia japonica. Experiment 3. The effects of root and shoot competition of Zoysia japonica on the ability of orchardgrass seedlings to become established in native pastures dominated by Zoysia japonica were studied. These studies were carried out during 1971 in vinyl house pot cultures using a split plat design, with three moisture levels imposed on five competition treatments including (1) full competition (2) root competition (3) shoot competition (4) no competition and (5) mono culture. Soil moisture treatments were; (1) plants watered to near field capacity when the Bouyoucous blocks reached a resistance of 3,700 ohms (low), (2) plants watered to near field capacity when the Bouyoucous blocks reached a resistance of 1,550 ohms (medium) and (3) plants watered to near field capacity when the Bouyoucous blocks reached a resistance of 530 ohms (high). Full competition and root competition treatments with Zoysia japonica significantly tended to reduce the top dry matter production, root dry weight and morphological characteristics of orchardgrass seedlings from those of shoot competition, no competition and mono culture treatments. Soil moisture levels had no significant effect on the dry matter production, shoot length and tiller production of orchardgrass seedlings under full competition and root competition treatments, however, under shoot competition, no competition and mono culture treatments a significant effect (P$lt;0.05) was found as the soil moisture level increases. The growth and development of orchardgrass seedlings was more severely affected under root competition, but more favoured under shoot competition from existing Zoysia japonica at the early stage of establishment. Therefore light appears not to be critical factor in the establishment of orchardgrass seedlings in existing Zoysia japonica native pastures. The results show that orchardgrass seedlings can be established in existing Zoysia japonica native pastures when favourable conditions of soil moisture and nutrients are maintained. Nevertheless, the growth of orchardgrass seedlings under full competition and root competition at high soil moisture was approximately two hundredth that of plants grooving in mono culture. Therefore, other nutrient factors as well as soil moisture may be operating in competition between Zoysia japonica and orchardgrass seedlings. The additive effect of competition for light and competition for moisture on the dry matter production and morphological characteristics of orchardgrass seedlings was not found in this experiment. Experiment 4. Orchardgrass seedlings were established in the soil in which the competing species, Zoysia japonica was already established. The effect of root competition on orchardgrass seedlings, as a test plant, was measured when two levels of soil moisture and nitrogen were supplied, and from half of orchardgrass seedlings root competition was excluded. Top and root dry matter production and morphological characteristics of orchardgrass seedlings were measured in a 2³ factorial design. Root competition significantly (P$lt;0.01) reduced the top and root dry matter production, tiller production, number of leaves, length and width of longest leaf of orchardgrass, But significantly (P$lt;0.01) increased top dry matter production of Zoysia japonica. The high levels of soil moisture and nitrogen did not completely eliminate the effects of root competition on the top and root dry matter production and morphological characteristics of orchardgrass seedlings, but the high levels of soil moisture and nitrogen had a little more effect than the low levels, suggesting competition for both soil moisture and nitrogen. For the top and root dry matter production of orchardgrass seedlings there were significant interactions (P$lt;0.01) between moisture and competition treatments. For the top and root dry matter production longest leaf and tiller production significant interactions (P$lt;0.05) have been found between nitrogen and competition treatments, but no interaction was found between nitrogen and soil moisture levels for all growth characteristics. It is deduced that competition from Zoysia japonica involves both soil moisture and nitrogen, and that soil moisture is probably the more important factor when orchardgrass is oversown into existing Zoysia japonica under natural conditions.

      • Search for disappearing tracks as a signature of new long-lived particles in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV

        Sirunyan,,A.,M.,Tumasyan,,A.,Adam,,W.,Ambrogi,,F.,Asilar,,E.,Bergauer,,T.,Brandstetter,,J.,Brondolin,,E.,Dragicevic,,M.,Erö,,,J.,Escalante,Del,Valle,,A.,Flechl,,M.,Frü,hwirth,,R.,Ghete,,V.,M. Springer-Verlag 2018 Journal of high energy physics Vol.2018 No.8

        <P>A search is presented for long-lived charged particles that decay within the CMS detector and produce the signature of a disappearing track. A disappearing track is an isolated track with missing hits in the outer layers of the silicon tracker, little or no energy in associated calorimeter deposits, and no associated hits in the muon detectors. This search uses data collected with the CMS detector in 2015 and 2016 from proton-proton collisions at a center-of-mass energy of 13 TeV at the LHC, corresponding to an integrated luminosity of 38.4 fb(-1). The results of the search are interpreted in the context of the anomaly-mediated supersymmetry breaking model. The data are consistent with the background-only hypothesis. Limits are set on the product of the cross section for direct production of charginos and their branching fraction to a neutralino and a pion, as a function of the chargino mass and lifetime. At 95% confidence level, charginos with masses below 715 (695) GeV are excluded for a lifetime of 3 (7) ns, as are charginos with lifetimes from 0.5 to 60 ns for a mass of 505 GeV. These are the most stringent limits using a disappearing track signature on this signal model for chargino lifetimes above approximate to 0.7 ns.</P>

      • A SUB-SATURN MASS PLANET, MOA-2009-BLG-319Lb

        Miyake,,N.,Sumi,,T.,Dong,,Subo,Street,,R.,Mancini,,L.,Gould,,A.,Bennett,,D.,P.,Tsapras,,Y.,Yee,,J.,C.,Albrow,,M.,D.,Bond,,I.,A.,Fouqué,,,P.,Browne,,P.,Han,,C.,Snodgrass,,C.,Finet,,F.,Furusawa,,K IOP Publishing 2011 The Astrophysical journal Vol.728 No.2

        <P>We report the gravitational microlensing discovery of a sub-Saturn mass planet, MOA-2009-BLG-319Lb, orbiting a K-or M-dwarf star in the inner Galactic disk or Galactic bulge. The high-cadence observations of the MOA-II survey discovered this microlensing event and enabled its identification as a high-magnification event approximately 24 hr prior to peak magnification. As a result, the planetary signal at the peak of this light curve was observed by 20 different telescopes, which is the largest number of telescopes to contribute to a planetary discovery to date. The microlensing model for this event indicates a planet-star mass ratio of q = (3.95 +/- 0.02) x 10(-4) and a separation of d = 0.97537 +/- 0.00007 in units of the Einstein radius. A Bayesian analysis based on the measured Einstein radius crossing time, t(E), and angular Einstein radius,theta(E), along with a standard Galactic model indicates a host star mass of M-L = 0.38(-0.18)(+0.34) M-circle dot and a planet mass of M-p = 50(-24)(+44)M(circle plus), which is half the mass of Saturn. This analysis also yields a planet-star three-dimensional separation of a = 2.4(-0.6)(+1.2) AU and a distance to the planetary system of D-L = 6.1(-1.2)(+1.1) kpc. This separation is similar to 2 times the distance of the snow line, a separation similar to most of the other planets discovered by microlensing.</P>

      • On the Number of <i>B<sub>h</sub></i>-Sets

        DELLAMONICA,Jr,,DOMINGOS,KOHAYAKAWA,,YOSHIHARU,LEE,,SANG,JUNE,,DL,,VOJTĚ,CH,SAMOTIJ,,WOJCIECH Cambridge University Press 2016 Combinatorics, probability & computing Vol.25 No.1

        <P>A set <I>A</I> of positive integers is a <I>Bh-set</I> if all the sums of the form <I>a</I>1 + . . . + <I>ah</I>, with <I>a</I>1,. . .,<I>ah</I> ∈ <I>A</I> and <I>a</I>1 ⩽ . . . ⩽ <I>ah</I>, are distinct. We provide asymptotic bounds for the number of <I>Bh</I>-sets of a given cardinality contained in the interval [<I>n</I>] = {1,. . .,<I>n</I>}. As a consequence of our results, we address a problem of Cameron and Erdős (1990) in the context of <I>Bh</I>-sets. We also use these results to estimate the maximum size of a <I>Bh</I>-sets contained in a typical (random) subset of [<I>n</I>] with a given cardinality.</P>

      • KCI등재후보SCOPUS

        Second preduals of tridual von Neumann algebras are geometrically unique

        A.,I.,Shtern 장전수학회 2008 Advanced Studies in Contemporary Mathematics Vol.17 No.1

        The main result of the note claims that, if a von Neumann algebra Ais the third dual to some Banach space and thus, as is known, is the bidual of somevon Neumann algebra A, then the natural homomorphic projection of A onto theweakly closed two-sided ideal in A isomorphic to A (the kernel of this homomorphismcoincides with that of the canonical projection of A onto A dual to the canonicalembedding of the predual of A in the predual of A) is dened uniquely by A. Thus,the von Neumann algebra A, the image of the above projection, is not only uniquelydened (up to isomorphism) by its enveloping von Neumann algebra A but also theimage of the \canonical normal embedding" of A in A (onto the image of the aboveprojection) is uniquely dened, i.e., this weakly closed two-sided ideal in A isomorphicto A is uniquely dened geometrically. This enables us to rene some known resultson predual spaces of von Neumann algebras.

      • A microcrystalline cellulose ingrained polydimethylsiloxane triboelectric nanogenerator as a self-powered locomotion detector

        Chandrasekhar,,A.,Alluri,,N.,Saravanakumar,,B.,Selvarajan,,S.,Kim,,S.,J. Royal Society of Chemistry 2017 Journal of materials chemistry. C, Materials for o Vol.5 No.7

        <P>Scavenging of ambient dissipated mechanical energy addresses the limitations of conventional batteries by providing an auxiliary voltaic power source, and thus has significant potential for self-powered and wearable electronics. Here, we demonstrate a cellulose/polydimethylsiloxane (PDMS) triboelectric nanogenerator (C-TENG) based on the contact and separation mode between a cellulose/PDMS composite film and an aluminium electrode. The device fabricated with a composite film of 5 wt% generates an open circuit voltage of 28 V and a short circuit current of 2.8 mu A with an instantaneous peak power of 576 mu W at a mechanical force of 32.16 N. The C-TENG was systematically studied and demonstrated to be a feasible power source that can commute instantaneous operation of LEDs and act as a self-powered locomotion detector for security applications. The C-TENG can also be used as a wearable power source with an in-built lithium ion battery charging circuit during a range of human motions.</P>

      • KCI등재

        S100A8 Induces Secretion of MCP-1, IL-6, and IL-8 via TLR4 in Jurkat T Cells

        A,Reum,Nam,Da,Hae,Kim,Mun,Jeong,Kim,Ji-Sook,Lee,Seung-Ju,Yang,In,Sik,Kim 대한의생명과학회 2016 Biomedical Science Letters Vol.22 No.2

        In the pathogenesis of inflammatory diseases such as allergies, S100A8 acts as an important molecule and T lymphocytes are essential cytokine-releasing cells. In this study, we investigated the effect of S100A8 on release of cytokines, specifically MCP-1, IL-6, and IL-8 in T cells, and its associated signaling mechanism. S100A8 increased secretion of MCP-1, IL-6, and IL-8 in a time- and dose-dependent manner. Elevated secretion of MCP-1, IL-6, and IL-8 due to S100A8 was inhibited by the TLR4 inhibitor TLR4i, the PI3K inhibitor LY294002, the PKCδ inhibitor rottlerin, the ERK inhibitor PD98059, the p38 MAPK inhibitor SB202190, the JNK inhibitor SP600125, and the NF-κB inhibitor BAY-11-7085. S100A8 induced phosphorylation of ERK, p38 MAPK, and JNK in a time-dependent manner, and activation was suppressed by TLR4i, LY294002, and rottlerin. S100A8 induced NF-κB activation by Iκ-Bα degradation, and NF-κB activity was suppressed by PD98059, SB202190, and SP600125. These results indicate that S100A8 induces cytokine release via TLR4. Study of PI3K, PKCδ, MAPKs, and NF-κB will contribute to elucidation of the S100A8-invovled mechanism.

      • KCI등재

        S100A8 Induces Secretion of MCP-1, IL-6, and IL-8 via TLR4 in Jurkat T Cells

        Nam,,A,Reum,Kim,,Da,Hae,Kim,,Mun,Jeong,Lee,,Ji-Sook,Yang,,Seung-Ju,Kim,,In,Sik The Korean Society for Biomedical Laboratory Scien 2016 Biomedical Science Letters Vol.22 No.2

        In the pathogenesis of inflammatory diseases such as allergies, S100A8 acts as an important molecule and T lymphocytes are essential cytokine-releasing cells. In this study, we investigated the effect of S100A8 on release of cytokines, specifically MCP-1, IL-6, and IL-8 in T cells, and its associated signaling mechanism. S100A8 increased secretion of MCP-1, IL-6, and IL-8 in a time- and dose-dependent manner. Elevated secretion of MCP-1, IL-6, and IL-8 due to S100A8 was inhibited by the TLR4 inhibitor TLR4i, the PI3K inhibitor LY294002, the $PKC{\delta}$ inhibitor rottlerin, the ERK inhibitor PD98059, the p38 MAPK inhibitor SB202190, the JNK inhibitor SP600125, and the NF-${\kappa}B$ inhibitor BAY-11-7085. S100A8 induced phosphorylation of ERK, p38 MAPK, and JNK in a time-dependent manner, and activation was suppressed by TLR4i, LY294002, and rottlerin. S100A8 induced NF-${\kappa}B$ activation by $I{\kappa}-B{\alpha}$ degradation, and NF-${\kappa}B$ activity was suppressed by PD98059, SB202190, and SP600125. These results indicate that S100A8 induces cytokine release via TLR4. Study of PI3K, $PKC{\delta}$, MAPKs, and NF-${\kappa}B$ will contribute to elucidation of the S100A8-invovled mechanism.

      • A SPECTRAL STUDY OF THE RAPID TRANSITIONS OF TYPE-B QUASI-PERIODIC OSCILLATIONS IN THE BLACK HOLE TRANSIENT XTE J1859+226

        Sriram,,K.,Rao,,A.,R.,Choi,,C.,S. IOP Publishing 2013 The Astrophysical journal Vol.775 No.1

        <P>The fast transitions of type-B and type-A quasi-periodic oscillations (QPOs) are rarely found, and they are observed at the peak of the outburst in black hole transient (BHT) sources. The associated spectral variations during such events are crucial to understand the origin and location of such QPOs in the accretion disk. During the 1999 outburst of XTE J1859+226, on four occasions a rapid transition of type-B/A QPOs was noted. We performed broadband spectral analysis on these four observations to unveil the responsible spectral parameter causing the rapid transitions. After invoking simple spectral models, it was observed that disk parameters were consistently varying along with disk and power-law fluxes, and almost no change was noted in the power-law index parameter. Though using a complex physical model showed consistent results, the spectral parameter variations across the transitions were not significant. It was observed that the type-B QPO was always associated with an inner disk front which is closer to the BH. In one observation, a type-A QPO appeared as the source count rate suddenly dropped, and the power-law index as well as disk normalization parameter considerably changed during this transition. The spectral changes in this particular observation were similar to the changes observed in XTE J1817-330, indicating a common underlying mechanism. We have also examined a similar observation of BHT source GX 339-4, where a sudden transition of a type-A/B QPO was noted. Similar spectral study again revealed that the disk parameters were changing. We discuss the results in the framework of a truncated disk model and conclude that the movement of the coupled inner disk-corona region is responsible for such rapid transitions of type-B QPOs.</P>

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