• Title/Summary/Keyword: Ma-hwang

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A Korean Generator using Left-Right Connectivity Information (DaMaN: 좌우접속정보를 이용한 한국어 생성기)

  • Chang, Won;Yuh, Sang-Hwa;Jung, Han-Min;Kim, Tae-Wan;Hwang, Do-Sam;Park, Dong-In
    • Annual Conference on Human and Language Technology
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    • 1995.10a
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    • pp.121-130
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    • 1995
  • 기계번역은 대상 언어를 해석하고 변환하여 목적언어의 대역어를 선정한 후, 목적언어를 생성하는 과정을 거친다. 이때, 대상언어의 분석 단위에 따라 대역어의 생성 단위 또는 깊이가 다르다. 그러므로, 특정한 시스템을 위한 생성기는 그 시스템의 해석 또는 변환단계에서 추출되는 대역어에 의존하게 되어 시스템 호환성을 상실한다. 따라서, 중복된 생성기의 개발을 피하기 위하여 번역시스템 특성에 국한되지 않고 독립적으로 이용될 수 있는 한국어 형태소생성기 개발이 필요하다. 본 논문에서는 한국어 해석에 사용되는 한국어 형태소 좌우인접정보를 이용하여 한국어형태소를 생성하는 시스템인 DaMaN을 소개한다. 세분류된 형태소의 활용과 접속, 조사의 변동, 띄어쓰기를 고려한 형태소 좌우접속 정보를 임의 조합 가능한 복합형태 (합성어)에도 적용할 수 있도록 확장하였다. 따라서, 대상언어의 분석단위에 제한 받지 않으므로 시스템 호환성이 있다.

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A Study of Environmental Effects on Galaxy Spin Using MaNGA Data

  • Lee, Jong Chul;Hwang, Ho Seong;Chung, Haeun
    • The Bulletin of The Korean Astronomical Society
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    • v.42 no.2
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    • pp.47.2-47.2
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    • 2017
  • We investigate the environmental effects on galaxy spin using the sample of ~1100 galaxies from the first public data of MaNGA integral field unit survey. We determine the spin parameter ${\lambda}_{Re}$ of galaxies by analyzing the two-dimensional stellar kinematic measurements within the effective radius, and study its dependence on the large-scale (background mass density determined with 20 nearby galaxies) and small-scale (distance to and morphology of the nearest neighbor galaxy) environments. We first examine the mass dependence of galaxy spin, and find that the spin parameter decreases with stellar mass at log ($M_{\ast}/M_{\odot}$) > 10, consistent with previous studies. We then divide the galaxies into three subsamples using their stellar masses to minimize the mass effects on galaxy spin. The spin parameter of galaxies in each subsample does not change with the background density, but do change with the distance to and morphology of the nearest neighbor. The spin parameter increases when late-type neighbors are within the virial radius, and decreases when early-type neighbors are within the virial radius. These results suggest that the large-scale environments hardly affect the galaxy spin, but the effects of small-scale environments such as hydrodynamic galaxy-galaxy interactions are substantial.

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The Measurements of the Activity Coefficients by E.M.F. Method and A Study of the Hydration (E. M. F.法에 依한 活性度係數의 測定과 Ion水和에 對한 考察)

  • Sakong, Yell;Hwang, Jung-Euy
    • Journal of the Korean Chemical Society
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    • v.6 no.2
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    • pp.113-116
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    • 1962
  • In this study we have measured the activity coefficients of NaCl in solution by E.M.F. method, depending upon MacInnes' equation at 25 dog. The cell (electrodes) is same as MacInnes' except the cock which was designed by ourselves as figure 1.Additionally, we have calculated the hydration number of NaCl from the activity coefficients using Robinson's equation and ionic hydration number according to our new formula $\frac{n_M{^+}+0.8}{n_A{^-}-0.1}=n_{MA}$, which was mentioned our former thesis.We also have calculated the hydration number of some salts from the ionic hydration number using upper formula and have got reasonable series match with other's value.As the results of our studying, we conclude it as follow;1) Liquid junction potential depend only on the bulk concentration of the both solution.2) The formula $\frac{n_M{^+}+0.8}{{n_A{^-}}-0.1}=n_{MA}$ is reasonable one in deducing to ionic hydration number.3) From upper relation, we can calculate the hydration number of unknown salts from it's ionic hydration numbers.

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Model study for genetic research of Sasang constitution confirmation method (유전학을 이용한 사상체질 감별법 개발 모델의 연구)

  • An, Hwang yong;Lee, Yong heun;Lim, Nam kyu;Kim, Dong hee;Park, Jong oh
    • Journal of Haehwa Medicine
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    • v.13 no.1
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    • pp.89-96
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    • 2004
  • The Sasang constitutional medicine, a traditional Korean medical typology, was initially proposed to the oriental medical field in 1894 by the Korean Confucian scholar Jae-Ma Lee. The key principle of his theory is that all humans can be categorized into four groups (Tae-Yang, Tae-Eum, So-Yang, and So-Eum) based on the function of major organs such as the heart, liver, kidney and lungs as well as other characteristics of the body. Now there are many scientists that try to confirm the method to classify the four group using genetics. In this study, we hypothesized that some genes are may associated with Sasang constitution on the basis of the theory of Jae-Ma Lee who insist everybody can be divided from the birth and can not be changed during the life. Before the genetic research, we first suggest the genetic research model. It may be effective to carry out genetic research concerned with Sasang constitution.

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Development of polypropylene-clay nanocomposite with supercritical $CO_2$ assisted twin screw extrusion

  • Hwang, Tae-Yong;Lee, Sang-Myung;Ahn, Young-Joon;Lee, Jae-Wook
    • Korea-Australia Rheology Journal
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    • v.20 no.4
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    • pp.235-243
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    • 2008
  • The aim of this study is to explore the possibility of incorporating supercritical carbon dioxide ($scCO_2$) into twin screw extrusion process for the production of polypropylene-clay nanocomposite (PPCN). The $CO_2$ is used as a reversible plasticizer which is expected to rapidly transport polymeric chains into the galleries of clay layers in its supercritical condition inside the extruder barrel and to expand the gallery spacings in its sub-critical state upon emerging from die. The structure and properties of the resulting PPCNs are characterized using wide-angle X-ray diffraction (WAXD), transmission electron microscopy (TEM), rheometry, thermogravimetry and mechanical testing. In the processing of the PPCNs with $scCO_2$, optimum $scCO_2$ concentration and screw speed which maximized the degree of intercalation of clay layers were observed. The WAXD result reveals that the PP/PP-g-MA/clay system treated with $scCO_2$ has more exfoliated structure than that without $scCO_2$ treatment, which is supported by TEM result. $scCO_2$ processing enhanced the thermal stability of PPCN hybrids. From the measurement of linear viscoelastic property, a solid-like behavior at low frequency was observed for the PPCNs with high concentration of PP-g-MA. The use of $scCO_2$ generally increased Young's modulus and tensile strength of PPCN hybrids.

Synthesis of Glycidyl Azido Copolyetherdiol for Solid Propellant Polyurethane Binder (Glycidyl Azido Copolyetherdiol을 이용한 Polyurethane의 합성과 특성분석)

  • Shin, Bum-Sik;Lee, Bum-Jae;Park, Young-Chul;Hwang, Kab-Sung
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2008.11a
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    • pp.231-236
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    • 2008
  • The well-defined copolymers derived from Epichlorohydrin(ECH), Tetrahydrofuran(THF) were synthesized by Cationic ring-opening polymerization(CROP) with 1,4-Butandiol, a initiator, and $BF_3THF$ Complex, a catalyst via Activated monomer mechanism, which could lead to hydroxyl-terminated polyethers. The molecular weight of polymers were dependant on the ratio of [monomer]/[diol], Copolymer structures were controlled by monomers feed ratio, ECH and THF added. This polymers were functionalized from Chlorine group to Azide group using $S_N2$ reaction. Synthesized polymers were found to be as the prepolymer for polyurethane. Polyurethane was synthesized in the presence of N-100/IPDI mixture, a curing agent, and TPB(triphenyl bismuth)/MA(Maleic anhydride) mixture, a catalyst system. The curing behavior and mechanical properties of polyurethane after mixing with various prepolymer’s composition and the molecular weight were studied.

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A Study on Inclination of Mind(心慾) and Nature & Emotion(性情) of Sasang Constitutional Medicine (동무(東武) 이제마(李濟馬)의 심욕(心慾)과 성정(性情)에 관한 고찰(考察))

  • Hwang, Min-Woo;Lee, Soo-Kyung;Koh, Byung-hee;Song, Il-Byung
    • Journal of Sasang Constitutional Medicine
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    • v.16 no.2
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    • pp.17-31
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    • 2004
  • 1. Objectives This research is purposed to find Lee Je-Ma's thought on Inclination of Mind(心慾) and Nature & Emotion(性情), through summarizing sentences related to Inclination of Mind(心慾) and Nature & Emotion(性情) proposed in the chief writings on Sasang Constitutional Medicine. 2. Methods It was researched bibliologically with Lee Je-Ma's chief writings such as "Gyukchigo (Draft on Inquiring the Properties of Things, 格致藁)", "Dongyi Suse Bowon Sasang Chobongyun(東醫壽世保元四象草本卷)" "Dongyi Suse Bowon (Longevity and Life Preservation in Oriental Medicine, 東醫壽世保元)". 3. Results and Conclusions (1) Lee Je-Ma's Mind(心) is the dimension of the Great Absolute(Taegeuk,太極), and is related with Benevolence-Righteousness-Propriety-Wisdom(仁義禮智) (2) Human being is classified Taeyangin(太陽人), Taeumin(太陰人), Soyangin(少陽人), Soeumin(少陰人) by SungLi(性理), and The Mean(鄙人), TheWeek(薄人), The Avaricious(貪人), The Sycophantic(懦人) by JungYok(情慾) in Sasang Constitutional Medicine. (3) Nature & Emotion(性情) of Sorrow-Anger-Joy-Pleasure(喜怒哀樂) is divided into two function. One is native function related with SungLi(性理), the other is acquired function related with JungYok(情慾). Also all two native and acquired function is related with Benevolence-Righteousness-Propriety-Wisdom(仁義禮智). (4) The Mean(鄙人), The Week(薄人), The Avaricious(貪人), The Sycophantic(懦人) may be defined as the state of Inclination of Mind(心慾) of Taeyangin(太陽人), Taeumin(太陰人), Soyangin(少陽人), Soeumin(少陰人) by function of acquired Emotion(情).

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The studies about cutting, processing and decokting methods of oriental medicinal plants II : Rehmanniae Radix Preparata (한약재의 절단, 수치, 전탕법에 관한 연구II : 숙지황)

  • Kim, In-Rak;Hwang, Keum-Hee;Joo, Hea-Jung;Ma, Jin-Yeul
    • Korean Journal of Oriental Medicine
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    • v.4 no.1 s.4
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    • pp.115-127
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    • 1998
  • To improve the quality control of frequently used oriental medicinal plants, the storage, cutting, processing and decokting methods of Rehmannia glutinosa Libosch. var. purpurea Makino(熟地黃) were examined. The contents of 5-hydroxymethyl-2- furaldehyde(5-HMF) of Rehmannia glutinosa Libosch. var. purpurea Makino were analysed by HPLC at various conditions as the standard component. Raw materials were classified into 3 groups with their specific gravity(天 地 人黃) and determined the ding weights and the contents of water, the solid component of Ji-Hwang(地黃) was the most. Rehmannia glutinosa Libosch. var purpurea Makino was steamed and dried nine times and analysed the content of 5-HMF on every time. In the case of Ji-Hwang, the standard component of the ninth sample was produced the most. But which of the tenth samples of Chun-Hwang and Yin-Hwang(天黃 人黃) were the most. The best decokting conditions which were determined by the yield of 5-HMF were as follows : non cutting, soaking time was 0 minutes, decokting time was 75 minutes after boiling. The contents of sugar on each of samples were determined. The contents of standard component increased by steaming number and the contents of sugar decreased.

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Effects of ${\kappa}-Carrageenan$-Based Film Packaging on Moisture Loss and Lipid Oxidation of Mackerel Mince (${\kappa}-Carrageenan$ 필름을 사용하여 포장한 고등어육의 수분 손실 및 지방 산화)

  • Hwang, Keum-Taek;Rhim, Jong-Whan;Park, Hyun-Jin
    • Korean Journal of Food Science and Technology
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    • v.29 no.2
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    • pp.390-393
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    • 1997
  • ${\kappa}-Carrageenan-based$ film prepared by mixing 2% ${\kappa}-carrageenan$, 0.1% KCl, 0.75% polyethylene glycol, and 0.75% glycerol was examined to be used as a potential packaging material for mackerel mince for preventing moisture loss and lipid oxidation. Mackerel mince patties were vacuum-packaged with the film and stored at $20^{\circ}C,\;10^{\circ}C,\;0^{\circ}C,\;and\;-15^{\circ}C$; nonpackaged patties were also stored at $0^{\circ}C$. Weight reduction, peroxide value (PV), and thiobarbituric acid (TBA) value were measured during storage. The packaged or nonpackaged samples stored at $20^{\circ}C,\;10^{\circ}C,\;and\;0^{\circ}C$ showed a 60% weight reduction between 2 and 15 days of storage, while the weight reduction of the samples stored at $-15^{\circ}C$ was about 3% after 25 days. The nonpackaged samples stored at $0^{\circ}C$ showed a steady increase in lipid oxidation with the PV reaching 23 mequivalent peroxide (PO)/㎏ on day 20 and with the TBA value at 0.4 mole malonaldehyde (MA)/g on day 5. The PV and TBA values of the samples vacuum-packaged with the carrageenan-based film were below 2 mequivalent PO/㎏ and below 0.1 mole MA/g, respectively, regardless of storage temperature throughout the storage of 28 days.

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Mechanical Alloying and Combined Process of in-situ and ex-situ to Fabricate the ex-situ C-doped $MgB_2$ Wire (기계적 합금화 및 in-situ와 ex-situ의 혼합공정을 통한 C 도핑된 ex-situ $MgB_2$ 선재 제조)

  • Hwang, Soo-Min;Lee, Chang-Min;Lim, Jun-Hyung;Choi, Jun-Hyuk;Park, Jin-Hyun;Joo, Jin-Ho;Jun, Byung-Hyuk;Kim, Chan-Joong
    • Progress in Superconductivity
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    • v.10 no.2
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    • pp.79-86
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    • 2009
  • We successfully fabricated C-doped ex-situ $MgB_2$ wires using two different methods such as mechanical alloying(MA) and combined process(CP) of in-situ and ex-situ. In the MA, the precursor powder was prepared with a mixture of $MgB_2$ and 1 at% C powders by planetary ball milling for 0-100 h. In the CP, on the other hand, C-doped $MgB_2$ powder was prepared with Mg, B, and C powders by in-situ process via compaction, sintering, and crushing. The powders prepared by two methods were loaded into Fe tube and then the assemblages were drawn by a conventional powder-in-tube technique. The MA treatment of C-added $MgB_2$ decreased the particles/grains size and resulted in C-doping into $MgB_2$ after sintering, improving the critical current density($J_c$) in high external magnetic field. For the C-doped $MgB_2$ wire by MA for 25 h, the $J_c$ was $4.1{\times}10^3A/cm^2$ at 5 K and 6.4 T, which was 5.9 times higher than that of pure and untreated $MgB_2$ wire. The CP also provided C-doping into $MgB_2$ and improved the $J_c$ in high magnetic field; the C-doped $MgB_2$ wire fabricated by CP exhibited a $J_c$ being 2.3 times higher than that of the ex-situ wire used commercial $MgB_2$ powder at 5 K and 6.0 T($2.7{\times}10^3A/cm^2\;vs.\;1.2{\times}10^3A/cm^2$).

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