• Title/Summary/Keyword: L-S theory

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A Proposal for the Formulation of Sociology of Library - Toward an Epistemological Turnover on the Science of Library and Information- (도서관사회학 연구시론 - 문헌정보학의 학문성에 대한 인식론적 전환을 위하여 -)

  • Kim Jung-Gun;Lee Soo-Sang
    • Journal of the Korean Society for Library and Information Science
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    • v.30 no.4
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    • pp.129-149
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    • 1996
  • From the outset Library and Information Science as a field of discipline began as part of the social sciences (or applied social sciences) in the 1930s. However, due to the practicality and technology emphasized by functionalists, the social science characteristics deteriorated and the science and technological aspect became more accentuated. Ultimately, Library and Information Science was not able to identify its main research subject of libraries and associated apparatuses as a form of social knowledge system, and could not help but neglect to induct and apply theory and philosophy from the social sciences. In the present study, after an examination of social epistemology and sociology of knowledge, which are important epistemological foundations necessary for the strengthening of social scientific aspect of Library and Information Science, a new research parameter called sociology of library was presenteL The sociology of library will be a scheme for an epistemological turnover on the discipline of Library and Information Science.

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Motion and sloshing analysis for new concept of offshore storage unit

  • Ha, Mun-Keun;Kim, Mun-Sung;Paik, Bu-Keun;Park, Chung-Hum
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2000.10a
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    • pp.189-195
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    • 2000
  • New concept of LNG-FPSO ship with moonpool and bilge step in bottom is considered and investigated in the point of motion reduction and sloshing phenomena of the cargo and operation tanks. The cargo capacity of the ship of which principle dimensions is L x B x D x t(design) =270.0 x 51.0 x 32.32 x 13.7(m) 16K at 98% loading condition. The two moonpools and rectangular step at bilge part are setted up specially for getting the effect of motion decrease. For the motion analysis, linearized three dimensional diffraction theory with the simplified boundary conditions is used. The six-degree of freedom coupled motion responses are calculated for the LNG-FPSO ship. Viscous effects on the roll motion responses of a vessel are taken into account in this calculation program using an empirical formula suggested by Ikeda, Himeno and Tanaka is used. The case study for the moonpool size had been carried out by theoretical estimation and experimental method. For the optimization of the moonpool size and effect of the step, 9 cases of its size and with and without step are considered. From the results of calculation and experiment, it can be concluded that this designed LNG-FPSO ship have possibility to carry out her missions in the rough sea as for the owner's demand waves condition. The motion responses, especially roll motion, for the designed LNG-FPSO ship are much lower than those of another drillship and shuttle tanker and limit criterions are satisfied. For the check of the cargo tank and operation tank sizes we have performed sloshing analysis in the irregular waves which focuses on the pressure distribution on the tank wall and the time history of pressure and free surface for No.2 and No5. tanks of LNG-FPSO with chamfers. Finally we got the tank size which has no resonance and no impact pressure in all filling in the bow quartering and beam sea.

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Dental Occlusion and Relationship to TMD and Systemic Symptoms (I) (교합이 악구강계 및 전신에 미치는 영향 (I))

  • Bae, Hanna Eun-Kyung;Choi, Byeong-Gap;Kim, Seong-Taek;Kim, Eun-Seok;Park, Eun-Jin
    • Journal of Dental Rehabilitation and Applied Science
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    • v.25 no.4
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    • pp.307-317
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    • 2009
  • A growing interest in management and treatment for patients with temporomandibular disorder(TMD) by many health workers, including oriental medicine doctors, physical therapists as well as dentists, have been noted in South Korea. Some of these health workers claim correlation between dental occlusion, TMD, and systemic symptoms such as tinnitus, dizziness, neck pain, myalgia, low back pain, posture and many other systemic symptoms and many controversial treatments are being carried out on bases of theories and reasons with no strong scientific evidence. This article is a result of preliminary study by authors in gathering scientific data on few of these various treatment modalities for TMD using MEDLINE data, internet and tutorials given by those who are using these TMD treatment methods. The modalities that had been searched are as follows; (1) Craniosacral mechanism (2) Osteopathy (3) Myodontics (4) Chirodontics (5) Dental Distress Syndrome and Quadrant Theorem. An outline of those theories will be introduced, and the contents in detail for respective theory will be reported in the following articles.

A Study on the Effectiveness of the Lungs Hand Acupuncture Based on Bio Signal Analysis (생체신호분석 기술을 적용한 폐 수지침 요법에 대한 효과성 연구)

  • Kim, Bong-Hyun;Cho, Dong-Uk
    • The KIPS Transactions:PartB
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    • v.19B no.2
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    • pp.77-82
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    • 2012
  • We carried out study to prove effectiveness as stimulating corresponding points to lung in hand to experiment applied analysis parameters for image and audio signals in this paper. To this end we collected facial image and voice before and after stimulating corresponding points to lung in hand to a male 20s 25 people. In addition, we analyzed change color, voice energy and speaking rate of right cheek area corresponding points to lung to suggest the theory of the Oriental medicine diagnosis based on data collected. As a result, after performing hand acupuncture, L value of right cheek area decreased average 2.33 and a value b value increased 0.76, 0.97 on average. In addition, size of voice energy increased average 0.42, speaking rate decreased average 0.07. In other words, effect of lung function was improved using hand acupuncture corresponding points to lung.

Characteristics of Harbor Resonance in Donghae Harbor (Part 2. Numerical Calculation) (동해항(東海港)의 부진동(副振動) 특성(特性)(2. 수치계산(數値計算)))

  • Jeong, Weon Mu;Jung, Kyung Tae;Chae, Jang Won
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.13 no.3
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    • pp.185-192
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    • 1993
  • A numerical model has been used for the prediction of wave agitations in a harbor which are induced by the intrusion and transformation of incident waves. Based on linear wave theory a mild-slope equation has been used. A partial absorbing boundary condition has been used on solid boundary. Functional has been derived following Chen and Mei(l974)'s technique based on Hybrid Element Method which uses finite discretisation in the inner region and analytical solution of Helmholtz equation in the outer region. Final simultaneous equation has been solved using the Gaussian Elimination Method. Helmholtz natural period and second peak period of seiche in Donghae Harbor coincide very well with the results from numerical calculation. Computed amplification factors show good agreement, especially when the reflection coefficient on solid boundary is 0.99, with those of measurements.

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Capturing Admission Judgment Policy from the Lens Model Perspective to Understand the Gender Difference in Science and Engineering (렌즈모델을 이용한 의사결정자의 Admission Policy 분석 - 과학과 공학분야에서의성차이의 영향을 중심으로)

  • Seong, Youn-Ho;Springs, Sherry L.;Tinnin, Deanna;Watkins, Meisha
    • Journal of the Ergonomics Society of Korea
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    • v.25 no.4
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    • pp.81-90
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    • 2006
  • Despite the government promoting women's participation in the engineering field, some statistics show that it has yet to be achieved. Potential reasons for this phenomenon include lower level of applications by women, or inherent gender gap in the professional field. Therefore, this study attempted to find impact of gender on college admission from the Lens Model perspective and Signal Detection Theory. This study consisted of three phases: identifying the necessary cues used in the admission process, analyzing existing data, and conducting two experiments to identify the effect of gender on admission decisions. Although the college application consisted of many cues, only five cues, school ranking, GPA, SAT score, resident status, and gender, were used to capture the officers' judgment policies for engineering admissions. Two experiments were conducted to investigate the impact of the gender factor in college admission. The enrollment officers first were presented with the existing data without the gender and asked to make dichotomous judgments. Secondly, the officers were asked to perform the judgment task with the gender cue present. Results showed that the gender did not play an important role in the judgments as expected. However, ideographical analyses on judgment strategies revealed that there were significant differences between the admission officers. Possible training implications are discussed.

A Comparative Study on the Colors of Chinese Traditional Costume in Tang, Song, Yuan, Ming, and Qing Dynasty (중국의 당.송.원.명.청 왕조 복식의 색채에 관한 비교연구)

  • Jendan, Jendan;Lee, Youn-Soon
    • Journal of the Korea Fashion and Costume Design Association
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    • v.14 no.4
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    • pp.63-72
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    • 2012
  • In this study, Characteristics of colors on Chinese traditional costume in Tang, Song, Yuan, Ming, and Qing Dynasty were compared. And general colors of Chinese traditional costume and the viewpoint of them were considered. The purpose of this study were to apt colors of Chinese traditional costumes to the sensory appetite of modern people for new things, and make the recreation inspired by new senses be applied into the fashion industry effectively. The results were as followed : Firstly, colors distribution of 5 dynasties were different. In the Tang, R(red) was highest, YR(yellow red) and Y(yellow) followed. In the Song, YR was highest, Y and R followed and PB(purple blue) was increased, In the Yuan, R, YR, PB, B were concentrated at low rates, and other colors were increased, In the Ming, Y, R and B were concentrated at low rates orderly, and other colors were increased, In the Qing, PB was highest and Y, R, YR, B, P(purple) were increased. Secondly, tons distribution of 5 dynasties were different. In the Tang, L(light) was highest, P(pale) and Lgr(light grayish) followed. In the Song, P(pale) was highest, Lgr, Gr(grayish) and Dl(dull) followed In the Yuan, Dp(deep) was highest, P and Lgr followed, and other tones were increased, In the Ming, S(strong) was highest, DI and V(vivid) followed. Thirdly, The general colors of 5 dynasty were R, YR, Y, B, PB colors with vivid, deep and light tones. Forth, the viewpoint of color on Chinese traditional costume was based on the Yin-Yang and the Five Elements theory. Based on results of this study, the successive researches will be carried out about the unique colors of each nation and application traditional colors to modern fashion industry in order to the unique cultural sense.

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Study on the Development of Reinforced Earth Retaining Wall (보강옹벽개발연구)

  • 유용환
    • Geotechnical Engineering
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    • v.2 no.3
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    • pp.51-66
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    • 1986
  • The design of fabric reinforced retaining wall structure was discussed in this article. It was confirmed that the reinforced retaining earth wall which was designed by new theoretical formulae developed this time was stable structurally and economically. The plastic fabric filter which was placed in layers behind the facing element reduced the lateral earth pressure on the wall elements in comparison with a conventional retaining earth walls. The reinforcing characteristics of earth wall was governed by the spacing of fabric layers, effective length of fabrics, particle distribution and compaction, and thus it is essential that, in the construction field, the reinforcing strips should be selected in order to develop the maximum friction forces bet.eon soil and fabric filters. The maximum tensile stress developed from the reinforcing strips was appeared at a little far distance from the back of skin element and it was not well agreed with the Rankine's theory but distributed well as a symmetrical shape against the point of the maximum tensile stress. The total length of the different layers should be sufficient so that the tension in the fabric strip could be transferred to the backfill material. Also the total stability of reinforced earth wall should be checked with respect to a failure surface which extended blond the different lathers.

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Wind-induced self-excited vibrations of a twin-deck bridge and the effects of gap-width

  • Qin, X.R.;Kwok, K.C.S.;Fok, C.H.;Hitchcock, P.A.;Xu, Y.L.
    • Wind and Structures
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    • v.10 no.5
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    • pp.463-479
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    • 2007
  • A series of wind tunnel sectional model dynamic tests of a twin-deck bridge were conducted at the CLP Power Wind/Wave Tunnel Facility (WWTF) of The Hong Kong University of Science and Technology (HKUST) to investigate the effects of gap-width on the self-excited vibrations and the dynamic and aerodynamic characteristics of the bridge. Five 2.9 m long models with different gap-widths were fabricated and suspended in the wind tunnel to simulate a two-degrees-of-freedom (2DOF) bridge dynamic system, free to vibrate in both vertical and torsional directions. The mass, vertical frequency, and the torsional-to-vertical frequency ratio of the 2DOF systems were fixed to emphasize the effects of gap-width. A free-vibration test methodology was employed and the Eigensystem Realization Algorithm (ERA) was utilized to extract the eight flutter derivatives and the modal parameters from the coupled free-decay responses. The results of the zero gap-width configuration were in reasonable agreement with the theoretical values for an ideal thin flat plate in smooth flow and the published results of models with similar cross-sections, thus validating the experimental and analytical techniques utilized in this study. The methodology was further verified by the comparison between the measured and predicted free-decay responses. A comparison of results for different gap-widths revealed that variations of the gap-width mainly affect the torsional damping property, and that the configurations with greater gap-widths show a higher torsional damping ratio and hence stronger aerodynamic stability of the bridge.

On the Characteristics of the Colors in the Kitchens and Dining Rooms of the Cyber Model Houses in Korea - Focused on Medium Sized Units(99~165m2) Constructed in Seoul and Gyeonggi Province in the Late 2000s - (아파트 사이버 모델하우스 주방 및 식당의 사용 색채 특성 - 2000년대 후반 수도권 지역에 건설된 중규모 주호(99~165m2)를 대상으로 -)

  • Choi, Jin-Hee;Jeong, Yoo-Na
    • Korean Institute of Interior Design Journal
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    • v.21 no.5
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    • pp.85-97
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    • 2012
  • This study is aimed to identify the color characteristics of the current Korean Brand Apartment, focused on the color of kitchens and dining rooms in the cyber model houses. The Brands which were selected for this study ranked from first to fifth in the contractor ranking and now account for 64 percent of the apartments in sale in Seoul and Gyeonggi Province. In addition, the size between $99m^2$ and $165m^2$ were selected, because it was most preferred at the 2011 survey for user preference on the size of apartment. As this study is for the colors shown on the monintor, colors were extracted from the images of web site with L*, a*, b*. And then, they were converted to Munsell values through computer program, which values were used to identify the color characteristics of hue, tone and to apply the theory of Moon Spencer. The result of the study on the color characteristics of the kitchen and dining room of the five brands' apartments is as follows. Regarding the color use, most of the brands used Y and YR color while as the accent color, P, PB and G were used. This result of main color use for hue was same as the guideline by the literature review, but color for tone showed the difference between brands and the difference between sizes. Next, regarding the color combination, first ambiguity of color harmony was shown the most. And the larger the size was, the more the contrast of color harmony was shown. It means that the color tone had close relation with the sizes of households.

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