• 제목/요약/키워드: Clearness

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Solar Radiation Measurement and Analysis of a High Mountain Area (고산지대의 일사량 특성분석 - 소백산과 그 인접 저지대를 중심으로 -)

  • Jo, Dok-Ki;Lee, Tae-Kyu;Chun, Il-Soo;Jeon, Hong-Seok;Auh, Chung-Moo
    • Solar Energy
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    • v.16 no.2
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    • pp.49-63
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    • 1996
  • Site elavation is one of the major factors which is influencing the incoming insolation. Because nonpermanent gases like ozone, water vapor are unmixed components of the atmosphere and their concentrations are function of height, the site elevation effects the relative proportion of the atmospheric constituents. We have measured solar radiation on Sobaek(1,350m) and in Poonggi area(280m). These values were compared to investigate the their charateristics and the potential for the solar utilization as an alternative energy for both high altitude area and low altitude area. From the results, we conclude that 1) Yearly mean 4,093 $kcal/m^2$. day of the horizontal global radiation in Mt. Sobaek was evaluated for clear day. 2) Insolation on Mt. Sobaek is $6{\sim}7%$ higher than Poonggi area during summer and winter seasons. 3) A significant difference of atomospheric clearness index is observed between Mt. Sobaek and Poonggi area at the same latitude.

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Proposal of Concrete Pull Off Bond Strength Measurement Method for Bridge Deck Overlay (교면 덧씌우기 콘크리트의 인발부착강도(引拔附着强度) 시험법(試驗法) 제안(提案))

  • Kim, Seong-Hwan;Kim, Dong-Ho;Kim, Hyun-Oh;Lee, Bong-Hak
    • Journal of Industrial Technology
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    • v.23 no.A
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    • pp.149-156
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    • 2003
  • The development and maintenance of a sound bond are essential requirements of concrete repair and replacement. The bond property of a overlay to its substrate concrete during the lifetime is one of the most important performance requirements which should be quantified. A standard or a verified bond strength measurement method is required at field for screening, selecting materials and quality control for overlay or repair materials, but no test method has been adopted as a standard. In this study, a concrete pull off bond strength measurement method for field application is proposed and evaluated. This study compares the splitting tensile test, slant shear test, nipple pipe direct tensile test, flexural adhesion test, briquette tensile test, jumbo nail pull-out test and core pull-off test with their test procedures. From these comparison and investigation, core pull-off test is selected as a main topic of this study because of it's suitability for in situ testing, simplicities in field application and clearness at interface boundary condition. Thus, the proposed core pull off test is evaluated to be the most appropriate method for field application in a simple manner. The fracture surface and fracture mode could be easily determined by visual observation of failure surface of the field specimen. The core pull off test was found to be sensitive to surface condition and latex contents at latex modified concrete.

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Study of a Local Festival through Differences and Responsive to the Effects of Selected Customer Lifestyle Attributes - Pocheon Beef Ribs Barbecue Festival - (라이프스타일에 따른 지역축제 선택속성이 고객유형별 차이와 고객반응에 미치는 영향에 대한 연구 - 포천 이동갈비바비큐축제 -)

  • Song, Soo Ik
    • Culinary science and hospitality research
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    • v.21 no.4
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    • pp.271-283
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    • 2015
  • The purpose of current study was to find differences of selected attributes and visitors of responses according to their lifestyle as perceived by Pocheon Yidong-BBQ-Galbi Festival participants. Survey method was employed and total 370 data was used for statistical analysis. The results of factor analysis showed that three factors were extracted from lifestyle(Activity, Example, Commonness), and four factors were found from festival selection attribute(Food, Service, Program, Cleanliness). In addition, three clusters(Outgoing personality, Gentle character, Normal character) were extracted from the result of cluster analysis. The result of chi-square shows that selection attributes are significantly different by clusters of festival. Therefore the festival host need to focus on various kinds of BBQ along with diverse foods and activities to make attractive cultual experience festival for visitors who visited with family. Additionally, all selection attributes except clearness have significantly influence on responsive relationship. Thus, the organizer should make an effort to provide high quality of various selection attributes. Current study will be contribute to develop various and fascinating local festival expecially related to food.

Quantitative Analysis of Landscape in Tokyusan National Park (덕유산 국립공원 경관에 대한 계량적 분석)

  • 김세천
    • Korean Journal of Environment and Ecology
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    • v.7 no.2
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    • pp.231-240
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    • 1994
  • The purpose of this study is to suggest the objective basic data for applying to development and conservation management of the national park through the quantitative analysis of the visual quality included in the and physical environment of the Tokyusan National Park. For this, spatial images and structures, of natural elements have been analyzed by factor analysis algorithm, and degree of visual quality has been measured mainly through questionnaries. Result of this study can be summarized as follows. Factors covering the spatial image of the Tokyusan National Park landscape have been found to be the overall synthetic evaluation, appeal, spatial, natural quality and dignity factors such as the overall synthetic evaluation, spatial and appeal yield high factor scores. The main factors determining the degree of visual quality are the clearness valley, peculiarity of configuration, natural of trail, harmony of suitable artificial planting and temple.

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Improving Subtitle Design of Mobile Broadcast (휴대방송에서 나타난 방송자막 디자인 개선 방향)

  • Cha, Hyun-Hee;Yoon, Seung-Keum;Lee, Kwang-Jik;Choi, Seong-Jin;Lee, Seon-Hee;Park, Goo-Man
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.8 no.5
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    • pp.128-137
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    • 2009
  • This research aimed at providing the direction for future improvement of broadcast subtitle design by identifying the user perception on broadcast subtitles of Terrestrial DMB. First, we contemplated on the existing research about broadcast subtitles. As a result, we found out that broadcast subtitle plays an essential role when watching a program and that the minimization of letters, clear fonts and color arrangement, rearrangement of components were identified as main factors that increase readability. However, the terrestrial DMB user evaluation on image quality, composition, color and brightness was not that positive. In addition, the evaluation on the readability of broadcast subtitle, information transmission, subtitle composition, letter font, number and size of letter was more negative. Developing a subtitle design which considers user convenience and suits terrestrial DMB screens in aspects of broadcast subtitle form and composition, limit of information, clearness and size of the letter is required.

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Comparative Study on the Quality of Korean Books and American Books (우리나라와 미국의 학술도서의 질적 평가에 관한 연구)

  • 이승채
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.14 no.1
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    • pp.107-121
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    • 2003
  • The object of this study is to compare qualitative level between Korean academic books and American academic ones evaluated by faculty members in Korea. To achieve this study, the data were produced by the questionnaires from faculty members of the Chonbuk National University. The major conclusions are summarized as follows: 1. As a whole, American academic books are evaluated more excellent than Korean academic ones. American academic books have more appropriateness of citation, level of content completion, usefulness of content, clearness of expression and accuracy of data than Korean academic ones 2. This study shows that American academic books are evaluated more excellent than Korean academic ones in every subject. 3. The respondents who had studied in the United States of America for more than two years evaluate American academic books more excellent than those for less than two years. 4. Regardless of the periods of study in America, however, most of respondents evaluate American academic books better than Korean academic ones in all fields.

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Compliance of Employer and Employee with Occupational Safety Regulation in Small Sized Enterprises of under 5 Employees (5인 미만 사업장의 산업안전 규제 순응 실태)

  • Yi, Kwan-Hyung;Rhee, Kyung-Yong;Sohn, Doo-Ik;Suh, Nam-Kyu;Seo, Kwang-Guk;Oh, Ji-Young
    • Journal of the Korean Society of Safety
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    • v.18 no.4
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    • pp.130-135
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    • 2003
  • This study is planned to investigate the compliance of small sized enterprises of under 5 employees directed by Industrial Safety and Health Act. Occupational safety regulation can be required for employer and employee to comply because that all members of workplace should be involved to protect worker's health. When all members of workplace comply with safety regulation, effectiveness of regulation will be realized as expectation. The study subject is composed of three groups as 501 employers, 501 employees of small sized enterprises of under 5 employees and 107 safety inspectors sampled by stratified random sampling for comparison. Data for analysis is collected from each sample using interview with structured questionnaires. Compliance is measured by 5 point scale composed by 8 sub items such as general perception, understanding, clearness, necessity, relevancy, implementation, penalty, and general compliance of the regulation. Among sub items of employer's compliance, the level of perception of regulation, necessity of regulation, relevancy of penalty are differentiated among three groups. The level of all 8 items of employee's compliance also differentiated among three groups. These results show that strategies for ensuring the same level of compliance among three groups will be needed through education, training and evaluation of regulation and feedback.

The Understanding of Meridian in "Woe Gwa Sim Beop Yo Gyeol" of "The Golden Mirror of Medicine" - Focus on Comparative Study with "Ja Gu Sim Beop Yo Gyeol" - ("의종금감.외과심법요결(醫宗金鑑.外科心法要訣)"의 경락학적 이해 - "자구심법요결(刺灸心法要訣)"과 비교 고찰을 중심으로 -)

  • Lee, Yang-Seok;Kwon, Sun-Oh;Kim, Seung-Tae;Park, Hi-Joon;Hahm, Dae-Hyun;Lee, Hye-Jung
    • Korean Journal of Acupuncture
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    • v.29 no.1
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    • pp.47-55
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    • 2012
  • Objectives : The aim of this study was to understand the meaning of meridian in "Woegwasimbeopyogyeol (WGS)" of "The Golden Mirror of Medicine (GMM)". Methods : We compared the meaning of meridian in WGS with in Jagusimbeopyogyeol (JGS) of GMM. Results : Objectivity and clearness is obtained by inserting the meridian and collateral diagram and the partially expanded diagram in WGS and JGS. The meridian song (a quatrain with seven) in WGS is placed at the beginning of the chapter, indicating its importance. Kihyeoldaso of 12 meridians is detailed in WGS, so as to reduce the harmful effect when doctors diagnose, treat and prognose. It is important to understand the meaning of meridian When doctors treat carbunculosis. The symptoms of a disease is classified by parts and shown in diagram, which can play an important role in diagnosis. Conclusions : The WGS follows the meanings of meridian and the complementary structure in JGS.

EVALUATION OF THE SYNTHETIC SPEECH QUALITY BY THE TD-PCULI METHOD

  • Kang, Chan-Hee;Shin, Yong-Jo;Kim, Yun-Seok;Kwon, Ki-Hyung;Chin, Yong-Ohk
    • Proceedings of the Acoustical Society of Korea Conference
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    • 1994.06a
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    • pp.977-983
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    • 1994
  • In this paper we have evaluated the synthetic speech quality by the proposed TD-PCULI speech synthesis method. For the synthesis we have extracted parameters from the Korean monosyllables through the analysis of speech waveforms in the time domain. We have constructed the Korean data format dictionary for the synthesis-by-rule depending upon the frequencies of the Korean pronunciation large vocabulary dictionary, in which V type syllables are 19, CV type's are 80, VC type's are 30 and CVC type's are 100. And using them we have synthesized various Korean monosyllables, words and sentences. We have tested each 10 syllables selected according to the 4 Korean syllable types with the objective MOS(Mean Opinion Score) evluation method about the 4 items i.e., intelligibility, clearness, loudness, and naturality after selecting random group without the knowledge of them. And also we have tested the possibility to modify a duration and F0 into another forms with changing a duration (i.e., 150msec, 300msec, 500msec, 700msec and 1sec) and a central fundamental frequency(i.e., 80Hz, 118Hz, 140Hz, 170Hz, and 200Hz). As the results of experiments the noises occurred in the course of synthesizing the speech by the rules are removed to be a very clear level and we can find that the prosodic elements can be controled as a good condition.

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Privacy Protection and Non-repudiation Mechanisms for Parcel Service (프라이버시 보호 및 부인방지를 제공하는 택배 시스템 제안)

  • Choi, Min Seok;Cho, Kwantae;Lee, Dong Hoon
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.22 no.6
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    • pp.1283-1292
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    • 2012
  • As delivery services market has grown the damage cases are also continuously increased. When using delivery services, Customers would not be compensated in any way. Perhaps worse, losing a cargo would create a great deal of trouble. Because the lack of evidence, they takes a lot of time to clarify who is responsible. To prevent these things, we must create, collect, maintain and confirm. In this paper, we introduce new delivery system with a trusted third party for non-repudiation services. Moreover, in damage case, we show that the proposed system is efficient and provide non-repudiation. Using sending and receiving codes, the proposed system identifies a responsible subject with quickness and clearness.