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Coal Petrological Characteristics of Korean Coal (국내탄의 석탄암석학적 특성)

  • Park, Hong Soo;Park, Suk Whan
    • Economic and Environmental Geology
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    • v.22 no.2
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    • pp.141-150
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    • 1989
  • In order to make economic and geological evaluation of coal in Korea, proximate and ultimate analyses were carried out as well as coal petrological studies such as maceral analyses, vitrinite reflectance and sporinite fluorescence measurement. The coeffcient of correlation between each factor of both conventional utilization and coal petrological parameters were studied as in Table 5 and 6. Their conclusions were as follow: (1) for anthracite, the good parameters of coal rank are mean vitrinite reflectance, carbon content, hydrogen content and H/C atomic ratio: (2) for brown coal and sub-bituminous coal, the good parameters of coal rank are carbon content, calorific value, moisture content, hydrogen content, oxygen content and O/C atomic ratio as well as vitrinite reflectance and sporinite fluorescence. An attempt is made to infer the coalforming environment by utilization of coal petrological analyses and to make comparison of coal analyses with proximate and ultimate analyses throughout the island arc region including Japan, Philippine and Indonesia and continental region including USA, Canada and Australia. As a result, meceral composition of Paleozoic and Mesozoic anthracite are similar to that of the Paleozoic continental coals, which were formed under dry conditions or low water table, but the coalification degree suddenly increased during Daebo orogeny (middle Jurassic to lower Cretaceous). The Tertiary coal resembles those of Tertiary island arc region coal characterized by higher calorific value, volatile matter content and H/C atomic ratio and by the formation of coal under wet conditions or higher water table.

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Switching Behavior between Social Networking Sites : Exploring The Philippine Case of Friendster Versus Facebook (소셜 네트워킹 사이트의 전환에 미치는 영향 요인 : 필리핀의 프렌드스터와 페이스북을 중심으로)

  • Polinar, Stephanie;Lee, Hong Joo;Choi, Jaewon
    • The Journal of Society for e-Business Studies
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    • v.18 no.3
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    • pp.195-209
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    • 2013
  • Considering the widespread use of social networking sites (SNSs) and the sudden shift of Filipino SNS usage from Friendster to Facebook, this paper examines five factors that affect user intentions to switch SNSs. By surveying switchers from Friendster to Facebook in the Philippines, satisfaction, alternative attractiveness, and social influence were significant factors affecting switching intent.

Life Stress, Social Support, and Antepartum Depression among Married Immigrant Women from Southeast Asia (동남아시아 결혼이주여성 임부의 생활 스트레스, 사회적 지지 및 산전우울과의 관계)

  • Shin, Hyeon Hee;Shin, Yeong Hee
    • Research in Community and Public Health Nursing
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    • v.26 no.2
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    • pp.108-118
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    • 2015
  • Purpose: The purpose of this study was to investigate life stress, social support, and antepartum depression among Southeast Asian immigrant women married to Korean men. Methods: Ninety-three subjects were recruited from local women's clinics and multicultural family support centers in D City. The instruments used were the life stress scale, social support scale, and K-EPDS. All the instruments were translated into their corresponding mother languages (Vietnamese, Cambodian, and Philippine) and notarized. Results: The item mean scores of life stress and social support were 2.65 and 3.17, respectively, on a 5-point Likert scale. The mean score of antepartum depression was 10.16, indicating that they were generally in a depressive state. A positive correlation was observed between life stress and antepartum depression (r=.59, p<.001). Social support was negatively correlated with life stress (r=-.42, p<.001) and antepartum depression (r=-.39, p<.001). The best predictors for antepartum depression were life stress, marital satisfaction, and emotional support, and they explained 43% of the variance. Conclusion: Antepartum depression in Southeast Asian immigrant brides was significantly associated with life stress as well as lack of emotional support. Emotional support may reduce their life stress and antepartum depression.

Tessier No. 2 Oblique Facial Cleft Not Associated with Cleft Lip or Palate: a Case Report (구순구개열과 관련되지 않은 Tessier 분류 2 안면열의 교정: 증례보고)

  • Park, Yong-Tae;Kye, Jun-Young;Kim, Seong-Gon;Kwon, Kwang-Jun;Park, Young-Wook
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.32 no.6
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    • pp.600-603
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    • 2010
  • Oblique facial cleft is extremely rare. The frequency was reported 1/1300 cases of facial cleft. The cleft appears to be bilateral in approximately 20% and more often on the right when unilateral. Oblique facial cleft is nearly always associated with cleft lip and palate. Thus, the case that is unilateral on the left and not associated with cleft lip or palate is very rare. We experienced a case of 2 years 6 months old Philippine girl who had oblique facial cleft that is not associated with cleft lip or palate. The probable cause and treatment is discussed with a review of literatures.

Gymnodinioid Dinoflagellates (Gymnodiniales, Dinophyceae) in the Open Pacific Ocean

  • Gomez, Fernando
    • ALGAE
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    • v.22 no.4
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    • pp.273-286
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    • 2007
  • Records of selected gymnodinioid dinoflagellates from the open waters in the vicinity of the Kuroshio and Oyashio Currents, the Philippine, Celebes, Sulu and South China Seas, western and central equatorial and southeast Pacific Ocean are described and illustrated. The species Gymnodinium fusus Schütt, Gyrodinium falcatum Kofoid et Swezy, G. caudatum Kofoid et Swezy, G. sugashimanii J. Cachon et al. and Pseliodinium vaubanii Sournia are considered to be morphotypes of a single species, that until further studies can establish the correct genus, are named G. falcatum. This study is the first to record individuals of G. falcatum with very long curly extensions. Other gymnodinioid dinoflagellates that showed bifurcated hyposomes may be related to Gyrodinium bifurcatum Kofoid et Swezy or cells of thecate dinoflagellates exuviated from their thecae. Some specimens showed a rigid cover, although no discernible thecal plates. In this group, the most common species was Ptychodiscus noctiluca Stein and, for the first time, a micrograph of a tentative specimen of the genus Berghiella Kofoid et Michener is reported. The validity of the genera Berghiella and Balechina Loeblich Jr. et Loeblich III with thick cell covers is discussed. Several species with apical extensions, other unknown taxa with distinctive shapes, and colonial forms are illustrated. The diversity of gymnodinioid dinoflagellates is underinvestigated in the open ocean.

Characteristic Analysis of Crustal Movement around Korean Peninsula By IGS Data (IGS 자료에 의한 한반도 주변의 지각변동 특성 해석)

  • Park, Joon-Kyu;Kang, Joon-Mook
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.28 no.6
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    • pp.645-653
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    • 2010
  • In this study, IGS(International GNSS Service) stations were processed by the method of PPP(Precise Point Positioning), and velocities of crustal movements about the region of the Korean Peninsula were calculated precisely. The characteristics of crustal movements around Korean Peninsula were understood by velocity calculation of crustal movements. We confirmed from the result which calculated by crustal movement velocity shows the movement Eurasia and North America plate move to south-east, and Philippine plate moves to north-west. This result is respected to be utilized as a basic data about analysis of earthquake and earth physics.

Latitudinal Distribution of Mesozooplankton Community in the Northwestern Pacific Ocean (북서태평양의 위도별 중형동물플랑크톤의 분포 특성)

  • Lee, Chang-Rae;Kang, Hyung-Ku;Choi, Keun-Hyung
    • Ocean and Polar Research
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    • v.33 no.spc3
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    • pp.337-347
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    • 2011
  • We investigated latitudinal changes in mesozooplankton community structure during a cruise between October 16 and November 30 of 2007 from four distinctive regions in the northwestern Pacific Ocean: Warm pool area (longitude $135^{\circ}$ line), Philippine EEZ (PEEZ), Japan EEZ (JEEZ), and East China Sea (ECS). Major taxa of numerical importance were Clausocalanidae (Clausocalanus spp.), Oncaeidae (Oncaea spp.), and Oithonidae (Oithona spp.) in oligotrophic regions, however Paracalanidae (Paracalanus spp.) was the most abundant group in the ECS. Mesozooplankton size group of <1 mm dominated in PEEZ and WP (48% and 56%, respectively), but mesozooplankton (>1 mm) were of importance in the JEEZ and ECS (34% and 38%, respectively). Mesozooplankton biomass and abundance were high in the JEEZ and ECS, and low in the oligotrophic WP and PEEZ waters, with positive relationship with both total Chl-a and heterotrophic protist biomass. Latitudinal change in mesozooplankton community structure was related with water temperature, with copepods such as Lucicutia spp. and Pleuromamma spp. being present only in warm waters. The geographical expansion of mesozooplankton with a preference for warmer waters could potentially be useful as an indicator for detecting ocean warming.

Variations in Karyotypic Characteristics of Different Breed Groups of Water Buffaloes (Bubalus bubalis)

  • Bondoc, O.L.;Flor, M.C.G.T.;Rebollos, S.D.N.;Albarace, A.G.
    • Asian-Australasian Journal of Animal Sciences
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    • v.15 no.3
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    • pp.321-325
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    • 2002
  • Karyotype analysis was carried out on blood samples of 30 water buffaloes belonging to different breed groups (i.e. Philippine Carabao (PC), Indian Murrah (IM), Bulgarian Murrah (BM), "$F_1$ 50% IM-50% PC", "$F_1$ 50% BM-50% PC" and "75% IM-25% PC"), using the modified Leucocyte Culture Technique. The modal chromosome numbers of the PC, "$F_1$ 50% IM-50% PC", "$F_1$ 50% BM-50% PC", IM, BM and "75% IM-25% PC" were 2n=48, 49, 49, 50, 50 and 50, respectively. The water buffalo chromosomes are mostly acrocentric (79.67%) and the remainder submetacentric (20.33%). Results of the ordinary least square analysis showed significant breed effects (p<0.01) on other karyotypic characteristics (i.e. relative length, arm ratio and centromeric index). Significant correlation between karyotypic characteristics and some animal performance traits were also found. The significant correlation values imply that karyotypic characteristics can be used as important criteria to select potentially productive young water buffaloes. In the future, more production and reproduction traits from non-institutional herds should be included in the analysis to reveal meaningful correlations with various karyotypic characteristics.

Deterritorialization and Transnational Networks of the Multicultural Families (다문화가족의 탈영토화와 초국가적 네트워크 특성)

  • Kim, Min-Jeong
    • Korean Journal of Human Ecology
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    • v.22 no.3
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    • pp.421-436
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    • 2013
  • International marriage is composed over 10% among total marriage in Korea. This study tried to know what kinds of social networks, especially transnational networks, the immigrant wives use for the process of being married and for the adjusting to marriage and Korean culture, and how their Korean families also are affected by the transnational networks. For the purposes of this study FGI and the interviews were applied for the immigrant wives, the multicultural husbands and the specialist groups in metropolitan city DaeGu. 18 migrant interviewees from Vietnam, China, Philippine, etc. were collected by the snow-ball sampling. 5 husbands were collected from the self-help meeting in multicultural families support center. The transnational networks of the immigrant wives in DaeGu were deterritorialized and reterritorialized actively. Migrant wives managed the close relationship with their family members of motherland, and had the networks sticky with relatives, friends, and other fore-immigrant wives from the same countries. Their migrations are characterized as 'chain migration'. Even though they acquired the Korean nationality, they have the transnational identities. They and their Korean families are interrelated and internetworked in exchanging economic resources as goods and money, human beings, love, child caring, foods and culture over local boundaries.

OCEANOGRAPHIC EVENTS AT NORTHERN BORNEO AND THEIR RELATIONSHIP TO HARMFUL ALGAL BLOOMS

  • Knee, Tan Chun;Ishizaka, Joji;Ransi, Varis;Son, Tong Phuoc Hoang;Tripathy, Sarat Chandra;Siswanto, Eko
    • Proceedings of the KSRS Conference
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    • v.1
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    • pp.491-494
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    • 2006
  • The west coast of Northern Borneo is strongly influenced by Asian monsoon. Present research using the satellite ocean color (OC) remote sensing has identified some interesting oceanographic phenomena in this area that could be related to the harmful algal blooms (HAB). Occurrence of seasonal upwelling event was noticed off the northern tip of Borneo Island that could be related to the northeast monsoon wind. Harmful algal blooms by Pyrodinium bahamense var. compressum occurred since 1976. Subsequently, during December 2003, there was a report of new HAB by Cochlodinium polykrikoides in Northern Borneo. Analysis of OC images revealed that the Cochlodinium bloom had very high chlorophyll a signal and strong absorption characteristics. Results showed that the Baram River plume and upwelling at Northern Borneo were the source of nutrient for the Cochlodinium bloom in the offshore region. Ocean color images of 2004 showed that the bloom from Northern Borneo had crossed the Balabac Straits, reaching Palawan Island in Philippine. Due to the possibility of transboundary HAB problem, we propose a regional HAB monitoring network for an effective HAB management.

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