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Growth Characteristics of Single-use of Kentucky Bluegrass and Mixed-use with Kentucky Bluegrass and Perennial Ryegrass (켄터키 블루그래스의 단용 및 퍼레니얼 라이그래스와 혼용에 따른 생육 특성)

  • 이혜원;정대영;심상렬
    • Asian Journal of Turfgrass Science
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    • v.18 no.1
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    • pp.1-13
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    • 2004
  • The growth characteristics of cool season turfgrass in the seaside landfill golf courses with the single-use of kentucky bluegrass and mixed-use with kentucky bluegrass and perennial ryegrass in the coast line are as follows. Water infiltration rate was higher in the kentucky bluegrass single-use groups recorded as 95.6∼125.9cm/hr than in the roups mixed with kentucky bluegrass and perennial ryegrass recorded as 180.3∼386.2cm/hr. The surface soil hardness and the soil penetration were ranged from 16.6 to 18.0mm and from 6.0 to 7.3kg/cm$^2$, respectively. The cultivar that showed the most excellent visual quality and visual color in the kentucky bluegrass single-use groups was Midnight(KB2), whose density around the root was relatively excellent, as well. North Star(KB3) known as highly resistant to salt was the secondarily excellent cultivar. Brilliant(KB1) had visual quality of about third grade, however, it seemed profitable to develop turfgrass ground by virtue of its high density. As of April 26, 2003, when 2 weeks had passed after seeding, the visual quality was better in the groups mixed with kentucky bluegrass and perennial rye grass than in the kentucky bluegrass single-use groups. The most excellent visual color was found in Midnight(KB2)+Brightstar SLT(PR2) among the groups mixed with kentucky bluegrass and perennial ryegrass. On August 4, 2003, a disease was found from one experimental group in Blackstone(KB4) and expanded into more than 50cm of diameter.

A Historical Review of the Growth and Development of Dancesport in Korea (한국 댄스스포츠의 성장과 발전에 관한 역사적 고찰)

  • Han, Sang-Ho
    • Journal of Digital Convergence
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    • v.14 no.3
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    • pp.45-54
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    • 2016
  • The purpose of this article was to not only review historically the growth and development of dancesport, to but also seek to inform the value and prospect of dancesport in Korea. To achieve the purpose of the paper, the result of this article was framed into four time periods for a historical review of Korean dancesport growth and development: the late 1880s - the mid 1940s, the late 1940s - the late 1980s, 1990s and 2000s onwards. First, the first period was from the late 1880s to the mid 1940s when the nation accepted a social dance and western dance and tradition especially in upper-class Korean society. Second, the second period was from the late 1940s to the late 1980s when social dances (or ballroom dance) were suppressed under the military-based regime. The most likely explanation for this was a tradition that Korea society consider distinction between the sexes as a virtue. Third, third period was the 1990s when the social dance (ballroom dance) was developed officially into dancesport. Actually, the 1990s saw the sport built up a positive image while a negative image was portrayed by the military-based government. Fourth, the fourth period was the 2000s onwards when the sport has been developed as a sport and culture in a sound and systematic manner. Indeed, the sport has come to meet the public tastes.

Classification of Various Severe Hazes and Its Optical Properties in Korea for 2011~2013 (2011~2013년 한반도에서 관측된 다양한 연무의 분류 및 광학특성)

  • Lee, Kyu-Min;Eun, Seung-Hee;Kim, Byung-Gon;Zhang, Wenting;Park, Jin-Soo;Ahn, Jun-Young;Chung, Kyung-Won;Park, Il-Soo
    • Atmosphere
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    • v.27 no.2
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    • pp.225-233
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    • 2017
  • Korea has recently suffered from severe hazes, largely being long-range transported from China but frequently mixed with domestic pollution. It is important to identify the origin of the frequently-occurring hazes, which is however hard to clearly determine in a quantitative term. In this regard, we suggest a possible classification procedure of various hazes into long-range transported haze (LH), Yellow Sand (YS), and urban haze (UH), based on mass loading of fine particles, time lag of PM mass concentrations between two sites aligned with dominant wind direction, backward trajectory of air mass, and the mass ratio of PM2.5 to PM10. The analysis sites are Seoul (SL) and Baengnyeongdo (BN), which are distant about 200 km from each other in the west to east direction. Aerosol concentrations at BN are overall lower than those of SL, indicative of BN being a background site for SL. We found distinct time lag of PM2.5 and PM10 concentrations between BN and SL in case of both LH and YS, but the intensity of YS being stronger than LH. Time scale (e-folding time scale) of LH appears to be longer and more variable than YS, which implies that LH covers much larger spatial scale. In addition, we found linear and significant correlations between ${\tau}_a$ obtained from sunphotometer and ${\tau}_{cal}$ calculated from surface aerosol scattering coefficient for LH episodes, relative to few correlation between those for YS, which might be associated with transported height of YS being much higher than LH. Therefore surface PM concentrations for the YS period are thought to be not representative for vertical integrated amount of aerosol loadings, probably by virtue of decoupled structure of aerosol vertical distribution. Improvement of various hazes classification based on the current result would provide the public as well as researchers with more accurate information of LH, UH, and YS, in terms of temporal scale, size, vertical distribution of aerosols, etc.

A XML Based Framework for Automatically Generating Control and Monitoring Software (제어 및 모니터링 소프트웨어 자동 생성을 위한 XML 기반 프레임웍)

  • Yoo Dae-Seung;Kim Jong-Hwan;Yi Myeong-Jae
    • Journal of KIISE:Computing Practices and Letters
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    • v.12 no.1
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    • pp.43-55
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    • 2006
  • In this paper, we present a framework which is used to develop, modify, maintain and extend a control and monitoring software easily for any kind of automatic instruments. The proposed framework is composed of three XML documents (IID, MAP, CMIML) and two tools (Virtual Instrument Wizard, Generator). Interface information of behaviors and states of instrument is written on IID. Mapping information between the interface information in IID and API of a real instrument driver is written on MAP Final information of the control and monitoring software is written on CMIML, IID, MAP and CMIML are written by XML format to provide a common usage and platform independence of the proposed framework. Vl Wizard generates CMIML intermediate platform independent document using IID and existing CMIML, and Generator generates the source code of a control and monitoring software platform dependent code automatically using CMIML and MAP. The suggested framework provides an easy development and maintenance because it automatically generates a control and monitoring software in GUI environment and it also provides common usage and platform independence in virtue of using description document of XML format. Also, reusability can be increased by reusing platform independent software description document and not reusing platform dependent software code.

A Study on the Implementation of an Agile SFFS Based on 5DOF Manipulator (5축 매니퓰레이터를 이용한 쾌속 임의형상제작시스템의 구현에 관한 연구)

  • Kim Seung-Woo;Jung Yong-Rae
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.42 no.1
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    • pp.1-11
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    • 2005
  • Several Solid Freeform Fabrication Systems(SFFS) are commercialized in a few companies for rapid prototyping. However, they have many technical problems including the limitation of applicable materials. A new method of agile prototyping is required for the recent manufacturing environments of multi-item and small quantity production. The objectives of this paper include the development of a novel method of SFFS, the CAFL/sup VM/(Computer Aided Fabrication of Lamination for Various Material), and the manufacture of the various material samples for the certification of the proposed system and the creation of new application areas. For these objectives, the technologies for a highly accurate robot path control, the optimization of support structure, CAD modeling, adaptive slicing was implemented. However, there is an important problem with the conventional 2D lamination method. That is the inaccuracy of 3D model surface, which is caused by the stair-type surface generated in virtue of vertical 2D cutting. In this paper, We design the new control algorithm that guarantees the constant speed, precise positioning and tangential cutting on the 5DOF SFFS. We develop the tangential cutting algorithm to be controlled with constant speed and successfully implemented in the 5DOF CAFL/sup VM/ system developed in this paper. Finally, this paper confirms its high-performance through the experimental results from the application into CAFL/sup VM/ system.

Organizational Personality Type and Citizenship Behaviors Perceived by Public Health Center Workers in Chonnam Province, Korea (전남지역 보건소 직원이 인지하는 조직성격유형과 조직시민행동)

  • Cho, Yoo-Hyang
    • Journal of agricultural medicine and community health
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    • v.36 no.1
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    • pp.47-59
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    • 2011
  • Objectives: The purpose of this study was to assess organizational citizenship behaviors (OCBs) and organizational personality types (OPT) perceived by public health center workers and to analyze differences in perceptions according to organizational characteristics. Methods: The subjects of this study were workers at 12 of the 22 public health centers in Chonnam Province, South Korea. To measure organizational characteristics, we employed the OPT Index and OCBs Index. Data were collected for one month, from 15 September to 14 October 2009. Data for 422 workers were used in the final analysis. Descriptive statistics and t?tests were performed as appropriate, utilizing SPSS/WIN 14. Results: Among 16 types of OPT, ESTJ, ISTJ and ESTP were the most prevalent for the 12 public health centers. The average weight of OCBs was 4.77, and courtesy and civic virtue held the first and the second ranks among OCBs, respectively. Statistically significant differences between types of OPT were detected, in that T type was gender (p=.007) while J type was age (p=.010), education (p=.043) and career (p=.000). Statistically significant differences between OCBs were found in age, education and career. Conclusion: Public health centers should have programs to innovate OPT and to improve OCB. The development of such programs should consider characteristics of public health center workers such as age, gender, education and career.

Quality Characteristics of Tomato Sauce prepared with Different Quantities of Chili Pepper (고춧가루 첨가량을 달리한 토마토소스의 품질특성)

  • Jun, Kwan-soo;Choi, Soo-Keun
    • Culinary science and hospitality research
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    • v.21 no.4
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    • pp.131-144
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    • 2015
  • The purpose of this study was to determine the best ratio of tomato sauce with chili pepper powder. The investigation of food quality after preparing tomato sauce with chili pepper powder shall be as follows. Moisture was reduced when red chili pepper powder were added gradually, although protein, fat, ash, and carbohydrates were increased. pH values decreased as red chili pepper increased as organic acid was reduced. In case of colour, L-value and a-value were reduced, although b-value increased. Lycopene and ${\beta}$-carotene increased by adding red chili pepper by virtue of the existence of carotenoid. Polyphenol, flavonoid, and DPPH radical also increased with the addition of red chili pepper as a result of red chili pepper's antioxidant property. In an attribute difference test, smoothness showed a low score when red pepper powder was added, but graininess returned a high score as red pepper powder absorbed moisture. The result of the sensory test for sauce, TC2 showed the best score in overall acceptance, while TC3 showed the best score for sauce with pasta in overall acceptance. Tomato sauce with 3% of red pepper powder was shown to have the most acceptable quality and should have powerful manufacture competitiveness.

A Study on Iinsim(人心;ren-hsin)-Tosim(道心;dao-hsin) Thought of Lee Je-ma (동무(東武)의 인심(人心)·도심론(道心論))

  • Kang, Tae-Gon;Park, Seong-Sik
    • Journal of Sasang Constitutional Medicine
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    • v.16 no.2
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    • pp.1-16
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    • 2004
  • 1. Objectives Theory of Iinsim Tosim(the Human - Mind and the Moral - Mind) that originated from "Sang-Seo(尙書)" "Dae-Woo-Mo(大禹謨)" is a relative importance point of dispute at the existing confucianism and chosun's neo confucianism. Our consideration point is that a close examination of relation between Iinsim-Tosim theory of existing confucianism's and Lee Je-ma's thought of Iinsim Tosim and his creative exposition that is related to view of human being contained theory of sasang(四象), knowledge & conduction(Jihang, 知行). 2. Methods of Research We analyze "Gyukchigo(格致藁)" that is contained confucianism's contents and Lee Je-ma's view point of human being, and consult " Dongyi Suse Bowon chobongeun(東醫壽世保元草本卷)", "Dongyi Suse Bowon(東醫壽世保元)", reference about confucianism and some other thesis. 3. Results (1) Lee Je-ma's thought of Iinsim Tosim is closely connected each other. There is close correlation between Iinsim and Tosim such as both ends. And Iinsim Tosim is not virtue and vice relation but all good concept, though each have fragility, Iinsim have weakness of laziness and Tosim have that of desire. (2) Lee Je-ma insist on having lisim(理心)-kyungsim(敬心) for overcoming each fragility that weakness of laziness and desire. And he present learning(學) and speculation(思) for acquirement of lisim(理心) kyungsim(敬心). (3) Lee Je-ma's thought of Iinsim Tosim's containing meaning is not one side but both side for nature(性) & emotion(情). therefore Iinsim Tosim is closely connected Lee Je-ma's view of human being and theory of knowledge & conduction(Ji-Hang, 知行論). That is very different from existing confucianism & MyungSunlock(Book of Illuminating Goodnes)'s thought. (4) Iinsim is connected with knowledge(知), Tosim is connected with conduction(行) (5) Lee Je-ma's thought of Affairs - Mind - Body - Objects(事心身物) is closely connected with Iinsim-Tosim. 4. Conclusions There are no parts that directly criticized by LEE JE-MA, comparing with he's thought and the existing confucianism's theory of Iinsim Tosim, a specific person's theory. but LEE JE-MA approached the theory of Iinsim Tosim with thought that is not an extension of existing confucianism's thought, but original with himself, therefore LEE JE-MA's thought of Iinsim Tosim is closely connected with the most important conceptions (theory of nature & emotion, theory of knowledge & conduction) at the Sasang Constitutional Medicine. and Iinsim Tosim is an important clue for understanding the thought of LEE JE-MA.

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Direct Growth of CNT on Cu Foils for Conductivity Enhancement and Their Field Emission Property Characterization (전도성 향상을 위한 구리호일 위 CNT의 직접성장 및 전계방출 특성 평가)

  • Kim, J.J.;Lim, S.T.;Kim, G.H.;Jeong, G.H.
    • Journal of the Korean Vacuum Society
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    • v.20 no.2
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    • pp.155-163
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    • 2011
  • Carbon nanotubes (CNT) have been attracted much attention since they have been expected to be used in various areas by virtue of their outstanding physical, electrical, and chemical properties. In order to make full use of their prominent electric conductivity in some areas such as electron emission sources, device interconnects, and electrodes in energy storage devices, direct growth of CNT with vertical alignment is definitely beneficial issue because they can maintain mechanical stability and high conductivity at the interface between substrates. Here, we report direct growth of vertically aligned CNT (VCNT) on Cu foils using thermal chemical vapor deposition and characterize the field emission property of the VCNT. The VCNT's height was controlled by changing the growth temperature, growth time, and catalytic layer thickness. Optimum growth condition was found to be $800^{\circ}C$ for 20 min with acetylene and hydrogen mixtures on Fe catalytic layer of 1 nm thick. The diameter of VCNT grown was smaller than that of usual multi walled CNT. Based on the result of field emission characterization, we concluded that the VCNT on Cu foils can be useful in various potential applications where high conductivity through the interface between CNT and substrate is required.

The Effect of Self-Growth Program on the Self-Concept and Peer-Relationship of Elementary School Student (자기성장 프로그램이 초등학생의 자아개념과 또래관계에 미치는 효과)

  • Gim, Tae-Hui
    • The Korean Journal of Elementary Counseling
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    • v.4 no.1
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    • pp.215-236
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    • 2005
  • The Purpose of this study is that self-growth program searches effect self-concept and peer-relationship with elementary school student, and advance following assumption to achieve this purpose and achieved study. First, self-concept point of experiment group students who execute self-growth program will be improved is meaning than self-concept point of control group students. Second, peer-relationship point of experiment group students who execute self-growth program will be improved is meaning than peer-relationship point of control group students. Third, effect that self-growth program gets to self-concept may be meaning difference according to sex. Fourth, difference that impact that self-growth program gets in peer- relationship is meaning according to sex may join. Chose fifth-year student 2 class 68 people (experiment group n=34, control group n=34) in I primary school locating to Jeonrabuk-do Iksan-si to verify above construction for study target. Disposal about experiment group executed over 10th for 60-80 minute 2 times in a week because investigator uses reconstructing self-growth program with virtue research paper such as learning program for own growth of Lee-Hyeong-Deuk (1998). In order to verify the effect after experiment, 1 collected materials for estimation by providing the subject children with questionaires about self-concept and peer-relationship before and after the experiment, and then analyzed the average differences in number of marks between the experiment group and the control group before and after the experiment through and by using One-Way ANOVA, and SPSS 11.0 program. The following is the result what I obtained from the above study. First, there was significant difference is between average difference before and after of experiment group and control group which execute self-growth program in self-concept elevation ($F_{(1,66)} =28.734$, p <.001). From the sub-variable, there was significant difference in academic self ($F_{(1,66)}=6.423$, p<.05), Social Self ($F_{(1,66)}=48.331$, p<.001), Physical Self ($F_{(1,66)}=11.074$, p <.01), sentimental self ($F_{(1,66)}=9.402$, p <.01) Second, there was significant difference is average difference before and after of experiment group and control group which execute self-growth program in peer-relationship promotion ($F_{(1,66)}=24.109$, p <.001). From the sub-variable there W3S Significant difference in trust ($F_{(1,66)}=14.507$, p<.001), respect ($F_{(1,66)}=15.271$, p <.001). Third, there was expose that significant difference does not exist in average self-concept before and after by sex of experiment group which executes self-growth program, and was not shown significant difference in sub-vairable. Fourth, there was expose that significant difference of whole peer- relationship and in respect of sub-variable in average peer-relationship before-after by sex of experiment group which execute self-growth program, but significant difference did not appear in trust. Could get conclusion that self-growth program is effect in elementary school student self-concept elevation and peer-relationship promotion according to these study finding, and confirmed possibility that self-growth program may contribute to change emotional special quality of children positively in education spot.

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