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Analysis of Calcite Twins as Indicators of Paleostress History (고응력의 지시자로서 방해석 쌍정 분석연구)

  • Park, Young-Seog;Jang, Bo-An;Kim, Cheong-Bin;Kang, Seong-Seung
    • Economic and Environmental Geology
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    • v.40 no.4
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    • pp.461-471
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    • 2007
  • A temperature of deformation and the state and direction of paleostress at that time when twins in calcite grains had been produced were observed, using analysis of calcite twins as indicators of paleostress history. The study was performed with the target of carbonate rocks distributed randomly small size in the southern area of south Korea. Considering the appearance of twins (thin or thick straight twins with one or two twin sets), average twin strain (1.235-7.453%), thickness ($0.77-1.94{\mu}m$) and intensity (25.26-41.99 twins/mm) from the results of calculated calcite twins, it is estimated that calcite twins were produced under temperatures lower than approximately $150-200^{\circ}C$. In the magnitudes and directions of principal strains, the maximum shortening strain axis ($e_3\leftrightarrow{\sigma}_1$) is approximately N-S direction in the GS-1 area in the southern Gyeongsang Basin as well as in the BS-1 area in the southern Yongnam Massif, whereas E-W direction in the NR-1 area in the southwestern Ogcheon Fold Belt. In case of the maximum extension strain axis ($e_1\leftrightarrow{\sigma}_3$), it is oriented in NW-SE and NE-SW directions in the GS-1 and BS-1 area, respectively, and in N-S direction in the NR-1 area. That is, it is suggested that the paleostress which produced the calcite twins may be applied at least more than two times in the study area.

Analysis on Kandinsky's work as a case study of Art Therapy (미술치료모델로서의 작품분석연구 - 칸딘스키작품을 중심으로)

  • 방경란
    • Archives of design research
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    • v.17 no.2
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    • pp.383-392
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    • 2004
  • Analysis on Kandinsky's Work as a Case Study of Art Therapy. This study attempts to analyze a work of W. Kandinsky, who placed great emphasis on the relationship between the form and the color of an object, from the viewpoint of art therapy. Most papers related with fine art work analysis approach it from the aesthetical point of view and there are few attempts to interpret art works in terms of art therapy. This study tries to present a new angle to the studies of art therapy Practiced up to now and research is made on its potentiality. With an analysis on the relationship between human psychology, and color and form that convey visual language, research is made on the feasibility of art therapeutic methods through the approaches based on color psychology, Gestalt theory and perception psychology. The final purpose of this study is to apply the results to the development of illustrations, education program for children, and educational instruments and toys that will promote children's healthy emotional growth based on the color psychology and the form psychology of human being. As an initial study, a piece of Kandinsky's work, titled ' CERCLES DANS CERCLE', is analyzed as a case study of art therapy both from theoretical standpoint and from the viewpoint of art therapy. Through this effort, it can be utilized as a new case study of art therapy that will influence human emotion positively and lead to healthful emotional catharsis.

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Phylogenetic Study of Korean Chrysosplenium Based on nrDNA ITS Sequences (ITS 염기서열에 의한 한국산 괭이눈속(Chrysosplenium)의 계통학적 연구)

  • Han, Jong-Won;Yang, Sun-Gyu;Kim, Hyun-Jun;Jang, Chang-Gee;Park, Jeong-Mi;Kang, Shin-Ho
    • Korean Journal of Plant Resources
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    • v.24 no.4
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    • pp.358-369
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    • 2011
  • The internal transcribed spacer (ITS) regions of nuclear ribosomal DNA from genus Chrysosplenium were sequenced to address phylogenetic relationship. ITS including 5.8S sequence varied in length from 647 bp to 653 bp. Among them, 219 sites were variable sites with parsimony-informative. The aligned sequences were analyzed by maximum parsimony (MP) and neighbor-joining (NJ) methods. In the strict consensus trees of parsimony analysis, the monophyly of Chrysosplenium was supported by 100% bootstrap value. The first clade, C. pseudofauriei was at the basal position of the genus, and others formed two clades with high bootstrap support. The second clade included Ser. Pilosa and Ser. Oppositifolia and third clade included Ser. Alternifolia and Ser. Flagellifera. The NJ trees showed essentially the same topology. Finally, DNA sequences of ITS regions were useful phylogenetic marker in this genus. Based on the ITS and ridge seed morphological results, C. sphaerospermum Maxim. and C. valdepilosum (Ohwi) S.H. Kang & J.W. Han were discussed their scientific names and taxonomic positions.

Diet Composition of Tanaka's snailfish, Liparis tanakae in the Yellow Sea, Korea (한국 서해에 출현하는 꼼치(Liparis tanakae)의 위내용물 조성)

  • Suyeon Jin;Da Yeon Kang;Gi Chang Seong;Do-Gyun Kim;Ho Seung Kim;Hyeon Ji Kim;Jeong Hoon Lee;Gun Wook Baeck
    • Korean Journal of Ichthyology
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    • v.35 no.4
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    • pp.354-360
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    • 2023
  • The diet composition of Tanaka's snailfish, Liparis tanakae were collected by bottom trawl net in the Yellow Sea of Korea during 2022 (April, August, October, and November). The size of the specimens ranged from 3.8 to 52.2 cm in total length. L. tanakae were primary consumed caridea shrimps (Crangon hakodatei, Eualus spathulirostris, etc.) and specialist feeder mainly consumed caridea shirmps (C. hakodatei). The L. tanakae's trophic level is 3.63. Caridea shrimps were the primary prey items for all size groups (<20 cm, 20~30 cm, 30~40 cm, ≥40 cm). The proportion of E. spathulirostris has increased as the body size of L. tanakae increased, whereas the proportion of C. hakodatei decreased gradually. As the body size of L. tanakae increased the mean weight of prey per stomach (mW/ST) tended to increase significantly (One-way ANOVA, P<0.05). The caridea shrimps were the primary prey items throught all seasons. In summer, the main prey items were the C. hakodatei, however, in autumn, the proportion of C. hakodatei decreased while the proportion of E. spathulirostris increased.

Effects of LED Light Quality of Urban Agricultural Plant Factories on the Growth of Daughter Plants of 'Seolhyang' Strawberry

  • Lee, Kook-Han
    • Journal of Environmental Science International
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    • v.27 no.10
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    • pp.821-829
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    • 2018
  • This study was conducted to examine the influence of Light-Emitting Diode (LED) light quality in urban agricultural plant factories on the growth and development of Seolhyang strawberry daughter plants in order to improve the efficiency of daughter plant growth and urban agriculture. LED light quality by demonstrated that above-ground growth and development were greatest for daughter plant 2. Daughter plant 1 showed the next highest growth and development, followed by daughter plant 3. Among the different qualities of LED light, the stem was thickest and growth rate of leaves was highest for R + B III (LED quality: red 660 nm + blue 450 nm/photosynthetic photon flux density (PPFD): $241-243{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$) and lowest for R (red $660nm/115-117{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$). Plant height, leaf width, petiole length, and the leaf growth rate were highest for W (white fluorescent lamp/$241-243{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$) and lowest for R + B I (red 660nm+blue 450nm/$80-82{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$). For above-ground growth and development, as the plants surpassed the seedling age, mixed light (red + blue), rather than monochromatic light (red or blue), and higher PPFD values tended to increase development. Regarding the quality of the LED light, daughter plant 2 showed the highest chlorophyll content, followed by daughter plant 1, and daughter plant 3 showed the least chlorophyll content. When the wavelength was monochromatic, chlorophyll content increased, compared to that when PPFD values were increased. Mixed light vitality was highest in daughter plant 2, followed by 1, and 3, showed increased photosynthesis when PPFD values were high with mixed light, in contrast to the results observed for chlorophyll content.

Effect and Issues on the Water Supply Network Management System in Kwangju (광주시 상수도관망관리시스템의 효과 및 문제점에 관한 연구)

  • 오창수
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.16 no.1
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    • pp.103-110
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    • 1998
  • This study deals with the effective management system on the underground facilities by Geographic In-formation System (GIS). For this purpose,"Management System on the Water Supply Network by GIS in Kwangju" was analylized. Following results were obtained in this study. This system could be practically used for the inquiry of water supply and distribution pipes, check valves, pipe equipments and parcel identification numbers. Inquiry of addresses using the parcel identification numbers were effective for the database management system of the water supply facilities. The poits at issue for the performance of this study were the security and education of experts, the security of revenue source, the discord between GIS companies concerned. Establishments of GIS software technologies and database systems, and the settlement between GIS companies were required for the solution of these poits. Development of computer management systems on the water sup-ply network by GIS enabled the replacement of outworn pipes and the leakage inquiry techniques in pipes. in pipes.

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Effects of an Empowering Program on Health Quality of Life, Decision Making Self-efficacy, Self-care Competency, and Reasonable Medical Care Utilization among Low Income Women Households (일 지역 저소득층 여성가구주를 위한 임파워링 프로그램이 건강 삶의 질, 의사결정 자기효능, 자가관리 능력 및 합리적 의료이용에 미치는 효과)

  • Ahn, Yang-Heui;Kim, Ki-Kyong;Kim, Gi-Yon;Song, Hee-Young
    • Journal of Korean Public Health Nursing
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    • v.24 no.2
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    • pp.237-248
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    • 2010
  • Purpose: The study assessed the effects of a 12-session empowering program to promote health quality of life, decision making self-efficacy, self-care competency, and reasonable medical care utilization among low income women households in one rural area. Methods: A quasi-experimental, one-group pre-posttest design was employed. A total of 28 women enrolled as medicaid recipients in the Public Health Center of W city agreed to participate. The empowering program consisted of 12 sessions addressing health education for self-care of disease, medication management, and counseling for psycho-social support. The intervention was delivered by five nurses and one social worker. Women completed a structured questionnaire measuring the study variables with demographic characteristic before and after the intervention. Data were analyzed by PAWS Statistics 17 utilizing descriptive statistics and paired t-test. Results: After the intervention, significant increases were evident in participant health quality of life (t=-5.83, p<.001), decision making self-efficacy (t=-4.86, p<.001), self-care competency (t=-8.16, p<.001), and reasonable medical care utilization (t=-3.97, p<.001). Conclusion: The 12-session empowering program on health quality of life as well as self-care competency was effective when delivered to low income women households. Further studies with larger numbers of participants and a control group are necessary to validate the results.

A Study on Heat Transfer and Pressure Drop in Flow Boiling of Binary Mixtures in a Uniformly Heated Horizontal Tube (균일하게 가열되는 수평전열관내 냉매의 유동 비등열 전달과 압력 강하 특성에 관한 연구)

  • LIM, Tae-Woo;PARK, Jong-Un;KIM, Jun-Hyo
    • Journal of Fisheries and Marine Sciences Education
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    • v.14 no.2
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    • pp.177-190
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    • 2002
  • An experimental study was carried out to make clear heat transfer characteristics in flow boiling of binary mixtures of refrigerants R134a and R123 in a uniformly heated horizontal tube. Experiments were run at a pressure of 0.6 MPa both for pure fluids and mixtures in the ranges of heat flux $10{\sim}50{kW/m}^2$, vapor quality 0~100% and mass flux 150-600 $kg/m^2s$. Heat transfer coefficients of mixtures were reduced compared to the interpolated values between pure fluids both in the low quality region where the nucleate boiling is dominant and in the high quality region where the convective evaporation is dominant. Total pressure drop during two-phase flow boiling in a horizontal tube consists of the sum of two components, that is, the frictional pressure drop and pressure drop due to acceleration. The frictional pressure drop is the most difficult component to predict, and makes the most important contribution to the total pressure drop. On the other hand, the acceleration pressure drop resulting from the variation of the momentum flux caused by phase change is generally small as compared to the frictional pressure drop. There is no significant difference in measured pressure drop between mixtures and pure fluids. The correlation of Martinelli and Nelson predicted most of the present data both for pure and mixed refrigerants within 30%.

Factors Influencing on Nurse's Image and Career Identity of High-school Students who Participated Job Experience (진로체험 참여 고등학생의 간호사 이미지와 진로 정체감에 미치는 요인)

  • Moon, Inn Oh;Lee, Sun Young
    • The Journal of Korean Society for School & Community Health Education
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    • v.17 no.1
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    • pp.11-21
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    • 2016
  • Objectives: This study was conducted in order to examine the correlation between the image of nurse and career identity among high school students participating in a vocational experience program of a nursing department, to find influential factors, and ultimately, to improve the image of nurse and promote the establishment of career identity for the development of nursing career and to obtain strategic information for developing nursing departments' vocational experience programs. Methods: Data for this study were collected using a structured self-report questionnaire from 90 high school students participating in a vocational experience program executed at the Nursing Department of W University in G Province during the period from April 26 to July 19 in 2014. Results: According to the results of data analyses, factors influencing the image of nurse were career identity(${\beta}=0.339$, p=0.002) and satisfaction with the program(${\beta}=0.153$, p=0.043) in order of significance(F=9.51, p<0.001), and factors influencing career identity were the image of nurse(${\beta}=0.301$, p=0.002), satisfaction with the program(${\beta}=0.254$, p=0.010), and gender(${\beta}=0.231$, p=0.015) in order of significance(F=12.06, p<0.001). Conclusions: These results suggest that when high school students participating in a vocational experience program of a nursing department are satisfied with the program, the program is more effective in improving the image of nurse and promoting the establishment of career identity. Based on this study, further research is necessary to get strategic information for developing various vocational experience programs, to provide high school students with vocational experiences related to nursing through the programs, and to examine the effects of such programs.

The Factors Affecting the Depression in Pneumoconiosis Patients (진폐환자의 우울에 영향을 미치는 요인)

  • Bak, Jue Hyeon;Lim, Hyeon Woo;Chae, Jung MI;Cho, Hyun Ju;Jung, Hye Sun;Jo, Sun Jin;Lee, W.C.
    • Korean Journal of Occupational Health Nursing
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    • v.16 no.1
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    • pp.28-36
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    • 2007
  • Objectives: The objective of this study was to analyze factors affecting depression in pneumoconiosis patients. Methods: The subjects were 200 pneumoconiosis patients hospitalized in Pneumoconiosis Hospitals in An-san and Tae-beck. Collected 114 surveys were used in this study among 200 surveys since 86 surveys offered insufficient data. SAS for Windows 8.01 was used to analyse the data Results: Percentage of normal and mild depression is 2.6%, Percentage of moderate depression is 14.9%, Percentage of severe depression is 79.8%. In order to analyze the factors affecting depression rate, the factors with p-values less than 0.1, such as age, education, religion, work department, hospitalized period, physical pain existence, daily living ability, family supports and internal locus of control, were selected as independent factors and analyzed using a stepwise multiple regression. As results, the factor that affected the rate of depression were of the age, education, ADL(Activities of Daily Living), the internal locus of control, family support. Conclusion: It is necessary to develop health program which can improve the patient's ADL(Activities of Daily Living), enforce internal locus of control to minimize the depression rate in pneumoconiosis patients.

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