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The nutlet morphology of the genus Glechoma L. (Lamiaceae) and its related taxa (긴병꽃풀속(Glechoma L. 꿀풀과) 및 근연분류군의 소견과 형태에 관한 연구)

  • Jang, Tae-Soo;Hong, Suk-Pyo
    • Korean Journal of Plant Taxonomy
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    • v.40 no.1
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    • pp.50-58
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    • 2010
  • The nutlet morphology and pericarp structure of 14 taxa (4 taxa of the genus Glechoma and related taxa) were studied by light and scanning electron microscopy, and a detailed description of nutlet morphological features for all examined taxa is provided. The shape of the nutlet is ovate to elliptic. Its size is 1.36-3.83 mm in length and 0.80-2.65 mm in width. The largest one was found in Marmoritis rotundifolia, while the smallest one was in Agastache nepetoides. Three different surface types were recognized in the studied taxa based on differences in cell outline and cell boundary relief (rectangular, pitted, and ridged negative reticulate-cell). Three types of trichome (uni-cellular non-glandular trichome, multi-cellular non-glandular trichome, and peltate glandular trichome) were distributed in the nutlets. The pericarp is formed in three layers (i.e., exocarp, mesocarp, and endocarp including sclenchyma tissue), and the pericarp in the studied species is $39.0-237.5{\mu}m$ thick. The morphological and anatomical features (the nutlet shape, surface type, and trichome distribution) in the genus Glechoma and related taxa are described and discussed.

The clinical study for hearing handicaps by Goodman classification (Goodman 씨 분류에 따른 청력장애도에 대한 임상적 고찰)

  • 김기령;김영명;정진선;이정권
    • Proceedings of the KOR-BRONCHOESO Conference
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    • 1977.06a
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    • pp.5.2-5
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    • 1977
  • Many persons, both children and adults, suffer from impaired hearing. The handicaps that arise from this are economic, educational and above all, social. These persons need help, both medical and educational. In order to plan facilities for the medical treat ment, the rehabilitation, and the special education required by those with impaired hearing, we must know how many persons with hearing problems there are and the severity of their handicaps. The first step in knowing these is to devide hearing impairent into categories of handicap. Historically, since Beasley (1940) proposed progressive stages of deafness in terms of social disability, there was no well organized classification. of hearing handicap except related material from Huzing (1959) and Silverman (1960). In 1965, Goodman advocated a guide hearing threshold levels and degres of relating hearing impairment. During recent one year, on the bases of Goodman classification of hearing impairment and the report from Illinois Comission on children (1968), we have studied about hearing handicaps and speech life for the 180 cases, who visited to our otolaryngology department with hearing impairment. Now, we report the results of study with the referred references.

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Jiri Mountain, Korea : A Window into the Deep Crust (지리산 : 지각 깊은 곳을 들여다보는 창문)

  • Song, Yong-Sun;Park, Kye-Hun
    • The Journal of the Petrological Society of Korea
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    • v.26 no.4
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    • pp.385-398
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    • 2017
  • Jiri Mountain lies in the southwestern portion of the Yeongnam massif, which is one of the Precambrian basement massifs of the Korean Peninsular, consisting essentially of high-grade metamorphic rocks. The geology of the area mainly consists of Paleoproterozoic metasedimentary migmatitic gneisses, granitic gneisses which are classified into granitic gneiss, (K-feldspar porphyroblastic) granitic gneiss and quartzo-feldspathic gneiss, charnockite and anorthosite based on their occurrence and petrographic characteristics. The ages obtained from these rocks mainly span a narrow range between ca. 1,876 and 1,856 Ma although inherited cores of zircons from massive granite gneiss yielded much older age spectrum (>2,029 Ma). The age of major metamorphism is ca. 1850-1840 Ma and the metamorphic condition obtained from mineral assemblages and geothermobarometers is about 4-6 kb and up to $700-750^{\circ}C$. These results indicate that in the area intense granitic magmatism and metamorphism occurred in the deep crust during Paleoproterozoic orogeny. Some younger age of charnockite (1,856-1,865 Ma) and anorthosite (1,861-1,862 Ma) might indicate the beginning of intraplate rifting leading to felsic and mafic magmatism just after the orogeny. In conclusion, the rocks in the Jiri Mountain area which formed at a mid to deep crustal zone provide us windows into the deep crust.

Mosaic disease of black locust(Robinia pseudoacacia L.) I. Symptom and transmission by grafting (아까시나무모자이크병에 관한 연구 I. 병징 및 접목전염)

  • Kim Chong Jin
    • Korean journal of applied entomology
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    • v.3
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    • pp.1-5
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    • 1964
  • Symptom of the mosaic disease of black locust which is presently widespread in Korea was observed and transmission of the disease was investigated by means of grafting Since its symptom was typically mosaic and its transmission was easily accomplished, the disease was considered to be caused by a virus. In investigation of transmission by grafting, it was found out that the discase was easily transmitted in both of the following cases, i. e., healthy seedlings grafted with diseased scions and diseased roots with healthy scions. In the healthy seedlings plus diseased scions grafting, some grafted seedlings were purposedly deprived of the diseased scions after, a certain length of time(10∼30 days), while some were left grafted. The former case showed much higher transmission rate than the latter case, but no fluctuation in rate of transmission by the length of contact period(10-30 days) was recognized. And even when the union between stock and diseased scion by callusing was not successful, the transmission was withnesed. On the basis of the symptom, transmission by grafting, and possibility of transmission by sap inoculation(not published yet), it is supposed that the mosaic virus belongs to the group of the black locust mosaic virus that has been reported in southeastern Europe by Atanasoff(1935) and Milinko et al(1961). It is very likely that the witches' broom of black locust recorded by Myung-O Kim et al(1961) in Korea is the mosaic disease.

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The Effect of Non-documentary Condition for Letter of Credit and Demand Guarantee (신용장과 청구보증서의 비서류적 조건의 유효성에 관한 연구)

  • Park, Sae-Woon;Choi, Jang-Woo
    • International Commerce and Information Review
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    • v.13 no.4
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    • pp.275-295
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    • 2011
  • Any attempt which requires banks to consider non-documentary conditions would destroy autonomy principle and increase the risks of the bank in L/C transactions. Therefore, non-documentary conditions are disregarded in the letter of credit. This provision was first introduced in UCP500, but later, ICC Position Paper No.3 added that if L/C requires documents related to non-documentary conditions, it cannot be disregarded. While the language in UCP600 is basically the same as that in UCP500, there is a difference between the two in that the former disregards the documents related to non-documentary conditions even if they are required by L/C. However, it should be remembered that international standard banking practice does not disregard all of non-documentary conditions. It recognizes the validity of some non-documentary conditions which it is not feasible to change into documentary conditions. That is, such non-documentary conditions as can be determined from an index specified in the guarantee or identified from the issuing bank's own records or their normal operations are recognized as valid in legal cases. ISP98 and UR00758 do not consider these as non-documentary conditions. The applicant should be cautious not to include non-documentary conditions in their applications.

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Illegal Issuing Practices of Switched Bill of Lading and Precautions against their Potential Risks (스위치선하증권의 불법적 발행 관행에 따른 위험과 그 대책)

  • Park, Sae-Woon
    • International Commerce and Information Review
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    • v.14 no.2
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    • pp.389-409
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    • 2012
  • The Switched Bill of Lading(SBL) has been in frequent use in recent years as intermediary trade increases with the growing number of companies' overseas subsidiaries. Its frequent use, though, has brought about disputes regarding its illegal issue. Although there are several legal cases regarding this, studies on this issue are hard to find. Therefore, this study tries to provide countermeasures and precautions against unlawful issues of SBL through examining the legal cases resulting from illegal issuing practices of SBL. When the Switched Bill of Lading is issued, the shipper, consignee, port of loading and unloading, and shipping date of the original bill of lading are usually changed. Statements which may put the shipper at a disadvantageous position may also be deleted and/or the bill of lading may be either divided or integrated when it is issued. However, if the carrier issues the SBL 1)without withdrawing original BL, 2)indicating the shipping date, port of loading and port of discharge falsely, or 3)deleting the statements which may give him disadvantages, it may be regarded as an illegal issue. These unlawful issues of SBL may pose a huge threat to the shipper, banks and the parties relating to the trade. That is, the shipper may take a substantial loss when the goods can be delivered to a third party by SBL without his collecting the proceeds. The issuing bank and the negotiating bank may also have their security rights to the goods hampered by the illegal and improper issue of SBL. In most cases, the carrier has no choice but to issue the SBL without collecting the original BL for fear of hurting the relationship with the intermediary traders. This practice of issuing more than two sets of BL may pose a potential risk to the carrier.

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The Analysis of Research Trends of Elderly in the Dental Hygiene Discipline (치위생학에서의 노인연구동향)

  • Goong, Hwa-Soo;Seo, Kawoun
    • Journal of dental hygiene science
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    • v.18 no.4
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    • pp.201-209
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    • 2018
  • The aim of this study was to identify bibliographic characteristics and research trends of articles published on the elderly people in dental hygiene. An analysis was done of 191 articles published from 1999 to 2017. Bibliographic characteristics were nine items such as publication journal, research design, research participants, number of researchers, data analysis method, keywords, research topic, and validity and reliability report. The collected data were analyzed using descriptive statistics of statistical program. First, the research on the elderly, which was published in dental hygiene, started to be published in 1999 and on going. Though major publications have been published in Journal of Korean Society of Dental Hygiene and Journal of Dental Hygiene Science, the kinds of journals are becoming diverse. Second, cross-sectional research was the most. Third, the elderly were the most studied subjects, but the criteria varied. Fourth, the number of authors was largest in order of two and three person. Fifth, data analysis method was in order of descriptive statistics, t-test, and ANOVA. Sixth, there were many duplication of keywords about oral, elderly, and health. Seventh, oral health behavior science was the most studied subject. Eighth, validity and reliability were reported at 27.4% and 51.6%, respectively. Ninth, only 15.7% of study was founded research funding. Based on the results of this study, we consider increase experimental research further. Therefore, it is recommeded that validity and reliability should be reported in research paper, and the keywords used in the field of dental hygiene should be agreed upon.

사회문제(社會問題) 분석(分析)에 있어서 한국사회사업가(韓國社會事業家)들의 이념관(理念觀) 연구(硏究)

  • Choe, Il-Seop
    • Korean Journal of Social Welfare
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    • v.1
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    • pp.1-8
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    • 1979
  • 본 연구(硏究) 보고서(報告書)는 중앙대학교(中央大學校) 부설(附設) 사회복지관(社會福祉館) 운영(運營)의 합리성(合理性)과 그 기능(機能)의 고찰(考察)을 중심(中心)으로 하여 저소득층(低所得層)에 있어서 사회복지관(社會福祉館)의 역할(役割)과 그 봉사활동(奉仕活動)의 내용(內容)이 어떠해야만 한다는 가설(假說)과 합리성(合理性)을 개최(開催)하는 동시(同時)에 금반(今般) 이스라엘, 예루살렘에서 1978년 8월 14일부터 8월 18일까지 개최(開催)하는 국제사회사업(國際社會事業) 대학협의회(大學協議會) 설립(設立) 50주년(周年) 기념학술대회(記念學術大會)에서 본(本) 연구보고서(硏究報告書)를 발표(發表)하도록 의뢰함으로써 그에 준(準)하여 작성(作成)하였으며 동시(同時)에 영문(英文)으로 기재하였다. 본 부설(附設) 사회복지관(社會福祉館)의 운영(運營)의 월지(越旨)와 목적(目的)은 아래와 같이 요약(要約)하고자 한다. 복지사회(福祉社會) 건설(建設)이라는 시대적(時代的)이며 전국적(全國的)인 여망(與望)에 부응(副應)하여 대학(大學)은 그 선도적(先導的) 역할(役割)을 담당하고 인간(人間)의 존엄성(尊嚴性)과 생존(生存)의 교리(?利)를 주장할 뿐만 아니라 국가부흥(國家復興)의 80년대(年代)를 향한 복지시책(福祉施策)의 기를 공고(鞏固)히 하고 사회사업(社會事業)의 토착화(土着化) 내지(內至) 자주성(自主性)을 확립(確立)해야 한다는 철학적(哲學的) 사명(使命)을 다하여야 하기에 본(本) 중앙대학교(中央大學校) 사회사업학과(社會事業學科)에서는 그러한 시범사업(示範事業)의 일환(一環)으로 본(本) 대학교(大學校)가 위치(位置)하고 있는 인근지역(隣近地域)에 사회복지관(社會福祉館)을 설립(設立)하고 다음의 세가지 목적(目的)을 달성하고저 광범(廣範)한 사업(事業)을 계획(計劃), 전개(展開)하고 있다. 1. 사회사업학(社會事業學)은 이론(理論)과 실제(實際)의 긴밀한 연계(連繫)가 강조되는 학문(學問)으로서 학생(學生)들의 실습(實習)을 교수(敎授)가 직접적으로 지도(指導), 감독(監督)함으로써 사회사업(社會事業)의 전문생(專門生)을 개발(開發)내지 발전(發展)시켜 나가야 한다. 2. 직접봉사(直接奉仕)와 학구적(學究的) 실험(實驗)을 통하여 새로운 봉사기술(奉仕技術)과 사업계획(事業計劃)을 개발(開發)하고 정립(定立)시킴으로써 국가적(國家的) 차원(次元)에서 실제분야(實際分野)에 직접 응용(應用)되도록 하여야 한다. 3. 대학(大學)이 위치(位置)하고 있는 인근지역(隣近地域), 특히 영세주민((零)細住民)들의 욕구(慾求)에 따라서 적절(適切)한 봉사(奉仕)를 직접 제공(提供)하여 줌으로써 지역사회문제(地域社會問題) 해결(解決) 참여(參與)하여야 한다. 4. 사업내용(事業內容) 위의 목적(目的)을 달성(達成)하기 위하여 다음과 같은 사업(事業)을 한다. (1) 청소년(靑少年) 집단지도사업(集團指導事業) (2) 가정복지사업(家庭福祉事業) (3) 아동상담사업(兒童相談事業) (4) 의료진료사업(醫療診療事業) (5) 야간교육(夜間敎育事業) (6) 독서실운영사업(讀書室運營事業) (7) 직업훈련사업(職業訓練事業) (8) 가족계획사업(家族計劃事業) (9) 법률상담사업(法律相談事業) (10) 탁아시설사업(託兒施設事業) (11) 기타(其他) 위와 관련(關聯)된 사업(事業)

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Fabrication and Characterization of UV-curable Conductive Transparent Film with Polyaniline Nanofibers (폴리아닐린 나노섬유를 이용한 광경화형 전도성 투명필름의 제조 및 특성)

  • Kim, Sung-Hyun;Song, Ki-Gook
    • Polymer(Korea)
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    • v.36 no.4
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    • pp.531-535
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    • 2012
  • Conductive polyaniline (PANI) nanofibers in UV-curable resin were used for a transparent conductive film. The emeraldine-salt PANI (ES-PANI) nanofibers were prepared by chemical oxidation polymerization of aniline, which could be changed into emeraldine-base PANI by dedoping. EB-PANI nanofibers as a precursor for conductive fillers were thereby transformed into re-dpoed PANI (rES-PANI) by dodecylbenzenesulfonic acid in the UV-curable resin solution. rES-PANI nanofibers have high conductivity and long-term stability in the solution without a defect of nanostructure. The resulting conductive resin solution was proved to be highly stable where no precipitation of rES-PANI fillers was observed over a period of 3 months. The transparent film was spin-casted on a poly(methyl methacrylate) sheet of thickness ca. $5{\mu}m$. A surface resistance of $6.5{\times}10^8{\Omega}/sq$ and transmittance at 550 nm of 91.1% were obtained for the film prepared with a concentration of 1.4 wt% rES-PANI nanofibers in the solution. This transformation process of rES-PANI from ES-PANI by dedoping-redoping can be an alternative method for the preparation of an antistatic protection film with controllable surface resistance and optical transparencies with the PANI concentration in UV-curable solution.

Petrology and Geochemical Characteristics of A-type Granite with Particular Reference to the Namsan Granite, Kyeongju (경주 남산일대의 A-형 화강암의 암석학 및 지화학적 특성)

  • 고정선;윤성효;이상원
    • The Journal of the Petrological Society of Korea
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    • v.5 no.2
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    • pp.142-160
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    • 1996
  • Petrological and geochemical characteristics of A-type granite were studied from the Namsan and Tohamsan granites in the vicinity of Kyeongju city, southeastern Korea. The Namsan granite consists of hypersolvus alkali-feldspar granite in the northern part and subsolvus alkali-feldspar to biotite granite in the southern part. This hypersolvus granite usually has miarolitic cavities and is characteristically composed of quartz, single homogeneous one-feldspar (alkali feldspar) forming tabular microperthite crystals, or micrographic intergrowth with quartz, and interstitial biotite (Fe-rich annite), alkali amphibole (riebeckitic arfvedsonite) and fluorite. Petrographic and petrochemical characteristics indicate that the hypersolvus granite and subsolvus granite from the Namsan belogn to the A-type and I-type granitoid, respectively. The A-type granite is petrochemically distinguished from the I-type Bulgugsa granites of Late Cretaceous in South Korea, by higher abundance of $SiO_2$, $Na_2O$, $Na_2O+K_2O$, large highly charged cations such as Rb, Nb, Y, Zr, Ga, Th, Ce. U the REEs and Ga/Al ratio, and lower abundance of $TiO_2$, $Al_2O_3$, CaO, $P_2O_5$, MnO, MgO, Ba, Sr, Eu. The total abundance of REEs is 293 ppm to 466 ppm, showing extensively fractionated granitic compositon, and REEs/chondrite normalized pattern shows flat form with strong Eu '-' anomaly ($Eu/Eu^{\ast}$=0.03-0.05). A-type granite from the Namsan area is thought to have been generated late in the magmatic/orogenic cycle after the production of I-type granite and by direct, high-temperature partial melting of melt-depleted, relatively dry tonalitic/granulitic lower crustal material with underplating by mantle-derived basaltic magmas associated with subduction.

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