• Title/Summary/Keyword: condition factor (k)

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Bidirectional Factor of Water Leaving Radiance for Geostationary Orbit (정지궤도를 위한 해면방사휘도$(L_w)$의 양방향 계수 (bidirectional factor) 평가 연구)

  • Park, Jin-Kyu;Han, Hee-Jeong;Mun, Jeong-Eon;Yang, Chan-Su;Ahn, Yu-Hwan
    • Proceedings of KOSOMES biannual meeting
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    • 2006.11a
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    • pp.181-186
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    • 2006
  • Geostationary Orbit satellite, unlike other sun-synchronous polar-orbit satellites, will be able to take a picture of a large region several times a day (almost with everyone hour interval). For geostationary satellite, the target region is fixed though the location of sun is changed always. However, Sun-synchronous polar-orbit satellites able to take a picture of target region same time a everyday. Thus Ocean signal is almost same. Accordingly, the ocean signal of a given target point is largely dependent on time. In other words, the ocean signal detected by geostationary satellite sensor must translate to the signal of target when both sun and satellite are located in nadir, using another correction model. This correction is performed with a standardization of signal throughout relative geometric relationship among satellite-sun-target points. This relative ratio called bidirectional factor. To find relationship between time and $[L_w]_N$/Bidirectional Factor differences, we are calculate solar position, geometry parameters. And reflectance, total radiance at the top of atmosphere(). And water leaving radiance, normalized water leaving radiance. And calculate bidirectional factor, that is the ratio of $[L_w]_N$ between target region and aiming the point. Then, we can make the bidirectional factor lookup table for one year imaging. So, we suggested for necessary to simulation experiment bidirectional factor in more various condition(wavelength and ocean/air condition).

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The in Fluence of Stage Make-Up to Psychological Condition of Performers and Performance (무대분장이 공연자의 심리상태 교 공연수행에 미치는 영향)

  • Ryu, Se-Ja;Park, Meegn-Ee
    • Journal of the Korean Society of Costume
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    • v.55 no.7 s.98
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    • pp.51-61
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    • 2005
  • The purpose of this study is to identify function of make-up as an Important variable in terms of its influence to psychology of performers and outcome of their performance. From June to November 2004 performers in 4 types of fields, i.e., opera, musical, drama and dancing being performed in Seoul and Cheongju were chosen as subjects and totally 450 questionnaires were prepared and distributed and among them 416 were used as data for final analysis. For data analysis frequency analysis, factor analysis, T-test, one-way ANOVA, path analysis, chi-square test were conducted by means of SPS 12.0 and MOS 4.0 statistical programs and as ex post facto checking Duncan's multiful range test was conducted. Make-up is an important element in acting and it has great influence on level of psychological satisfaction of an individual. It was disclosed that psychological factor of concentration and lethargy have direct bearing on acting performance. In order to maximize actor or actresses performance skill perfect make-up is essential and role of make-up specialist can become a critical factor for inducing success in performance. Role and duty of make-up artists in terms of scope of their responsibility should be extended so that they may give their full support to the performers to be most successful in their performance.

Three-dimensional simplified slope stability analysis by hybrid-type penalty method

  • Yamaguchi, Kiyomichi;Takeuchi, Norio;Hamasaki, Eisaku
    • Geomechanics and Engineering
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    • v.15 no.4
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    • pp.947-955
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    • 2018
  • In this study, we propose a three-dimensional simplified slope stability analysis using a hybrid-type penalty method (HPM). In this method, a solid element obtained by the HPM is applied to a column that divides the slope into a lattice. Therefore, it can obtain a safety factor in the same way as simplified methods on the slip surface. Furthermore, it can obtain results (displacement and strain) that cannot be obtained by conventional limit equilibrium methods such as the Hovland method. The continuity condition of displacement between adjacent columns and between elements for each depth is considered to incorporate a penalty function and the relative displacement. For a slip surface between the bottom surface and the boundary condition to express the slip of slope, we introduce a penalty function based on the Mohr-Coulomb failure criterion. To compute the state of the slip surface, an r-min method is used in the load incremental method. Using the result of the simple three-dimensional slope stability analysis, we obtain a safety factor that is the same as the conventional method. Furthermore, the movement of the slope was calculated quantitatively and qualitatively because the displacement and strain of each element are obtained.

Fracture mechanical evaluation of fatigue strength of a single spot welded lap joint under tension-shear load (인장-전단하중을 받는 일점 Spot용접재의 파괴역학적 피로강도 평가)

  • 배동호
    • Journal of the korean Society of Automotive Engineers
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    • v.13 no.5
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    • pp.42-50
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    • 1991
  • According as the members and inner and outer plates of the automobile body structure have been thinned their thickness and have become high strength, each part of the body structure has been put more severe stress condition. Therefore, it has been increasingly required to improve the fatigue strength of the spot welded structures. As one of the improving methods for such problem, the author had previously proposed the method of alleviating stress concentration at nugget edge of the spot weld part and improving its fatigue strength [1]. But, because fatigue strength of the spot welded lap joint is influenced by its geometrical and mechanical factors, welding condition and etc., there needs a quantitative and systematic estimation method of them. In this report, by considering nugget edge of the spot weld part of the spot welded lap joint subjected to tensile load to the ligament crack, fatigue strength of various spot welded lap joints was estimated with the stress intensity factor (S.I.F.) K which is fracture mechanical parameter. It is known that evaluation of fatigue strength of the spot welded lap joint by the stress intensity factor (S.I.F.) K is more effective than the maximum stress $(\sigma_{ymax}$) at edge of the spot weld part on the center line of width of the plate.

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The research on changes in turnover intention due to the degree of occupational stress and the mediating parameters in fire-officerse Mice

  • kang, Kwang Soon;Ji, Dong Ha
    • Journal of the Korea Society of Computer and Information
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    • v.22 no.7
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    • pp.109-115
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    • 2017
  • This study was performed to investigate the changes in turnover intention according to the level of occupational stress and to find the mediating factor that reducing the turnover intention among fire officer. To compare change of turnover intention according to the degree of occupational stress, statistical analyses were done by using the logistic regression model. In logistic regression analysis, the possibility of high turnover intention in a group with high occupational stress was hjgher by 4.11 times than a group with low occupational stress. The results of analyzing the degree of change in turnover intention after applying the mediating parameters(physical condition, emotional labor, burn out), turnover intention decreased by about 50.6%(from 4.11 times to 2.03 times) at the high level of occupational stress. As a result, it was found that the occupational stress experienced by the fire-officers had a positive effect on the turnover intention. In order to reduce the turnover intention due to the occupational stress of the fire-officers, it is necessary to manage factors such as work environmental factors(emotional labor, burn out) and individual factor(physical condition).

Reproductive Cycle of Surf Clam (Tresus keenae) in Southern Coast of Korea (남해안에 서식하는 왕우럭 (Tresus keenae)의 생식주기)

  • KIM Dae Hee;LIM Han Kyu;MIM Kwang Sik;CHANG Young Jin;KIM Tae Ik
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.32 no.5
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    • pp.659-663
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    • 1999
  • Gametogenesis, reproductive cycle, condition factor, and meat weight rate of the surf clam, Tresus Keenae were studied by histological observations and morphometric data based on the samples which have been collected from the south coast of Korea, from January 1995 to February 1996. The annual ranges of the mean seawater temperature and specific gravity in habitat of the surf clam were $4.9\~24.9^{\circ}C$ and 1.0210$\~$1.0266, respectively. Monthly changes in the condition factor showed in a wide range from 0.2381 to 0.2827, began to increase in January and reached the first maximum (0.2827) in April. And then the value rapidly decreased in June, thereafter, reached the second peak (0.2812) in August. The condition factor of this species showed the two peaks, and gonadal development reached sexually mature and ripe conditions during the period of these two peaks. The meat weight rate ranged from $38.0\%$ to $46.4\%$, and its change showed a similar tendency with the condition factor. The reproductive cycle of this species can be divided into five successive stages: in both sex, multiplicative (December to January, July to August), growing (January to February, September to October), mature (February to April, September to November), spawning (April to June, September to November), and degenerative and resting stage (May to July, November to January).

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Sexual Differentiation and Androgen Sex Reversal of Oreochromis niloticus (나일틸라피아의 성분화와 호르몬에 의한 성전환)

  • KIM Dong Soo;BANG In Chul;KIM In-Bae
    • Journal of Aquaculture
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    • v.1 no.1
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    • pp.53-66
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    • 1988
  • Histological study was conducted to determine the initial treatment time and treatment period of hormone for sex reversal in accordance with gonadal development and sexual differentiation in Oreochromis niloticus. The effects of various concentrations and various treatment periods of 17$\alpha$-methyltestosterone (MT) on sex reversal, growth, and condition factor were also evaluated. Paired primodial gonads were formed 9 days after hatching, when germ cells began their gradual multiplication and development into gonial ones. Sex differentiation of gonads either into ovaries or testes became histologically discernible about 20 days after hatching with formation of ovarian cavity and efferent duct. All feed treated with MT at 15 ppm for 10 days or more produced populations of males $95\%$ or above. All male populations were produced at 15 ppm MT for 40 days, and 30 ppm for 30 and 40 days. Growth of hormone-treated-fish was faster than that of untreated ones and the condition factor of hormone-treated-fish was greater than that of untreated ones 77 days after hatching.

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The literature study on the individual characteristic factor by the interrogation of history taking and palpation (소증(素證)과 맥진(脈診)에서의 개체성(個體性) 관찰(觀察)에 대한 문헌적(文獻的) 고찰(考察))

  • Kim, Gyeong Cheol;Lee, Hae Woong
    • Journal of Korean Medical classics
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    • v.27 no.3
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    • pp.1-10
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    • 2014
  • Objectives : For the excellent differentiation of syndromes, we study on the individual characteristic factor by the interrogation of history taking and palpation. Methods : To the subject of diagnosis special books and diagnostics textbook of korean medicine, we arrange the individual characteristic factor by the interrogation of history taking and palpation. Results : The interrogation of history taking on the individual characteristic factor was arranged dispositional symptoms and individual characteristic of syndromes. And the pulse taking and palpation on the individual characteristic factor was arranged the moderate person's pulse condition ; floating pulse, deep and sinking pulse, replete and forceful pulse, intermittent pulse, long pulse, slippery or smooth pulse, relaxed or loose pulse (浮沈實大長滑緩脈), six Yin and six Yang pulse (六陽脈, 六陰脈). Conclusions : As the results, the individual characteristic factor is very important item of the four methods of diagnosis and the differentiation of syndromes. And therefore, we have to divide the signs of individual characteristic factor and the signs of disease in the process on four methods of diagnosis and differentiation of syndromes.

Purchase Intention of Fashion Goods on Internet Shopping Mall - The Difference to Follow Internet Shopping Mall Utility Actual Condition and the Socioeconomic Variable - (인터넷 쇼핑몰에서 패션상품 구매의도에 관한 연구 - 사회경제적 변수 및 인터넷 쇼핑몰 사용실태에 따른 차이 -)

  • Jung, Jin-Ho;Park, Hea-Ryung
    • Fashion & Textile Research Journal
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    • v.3 no.3
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    • pp.249-256
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    • 2001
  • This study was to investigate difference across socioeconomic groups in factors of purchase intention of apparel in internet shopping mall and in satisfaction were internet shopping mall. A questionnaire was administered to collage students majoring in fashion design during May of 2001. Data was analyzed by using Factor analysis, T-test, one-way ANOVA, Duncan test, ${\chi}^2$-test. Factor analysis yield three factors of purchase intention, purchase stimulus, convenience and economic and rationality. Significant differences were found across levels of monthly pocket money and types of payment for purchase apparel of internet shopping mall purchase stimulus (factor 1). In convenience and economics (factor 2), differences were also significant across levels of purchase frequency, product price and payment ways of internet sopping mall. Significant difference was identified across sex type and levels of product price purchased in internet shopping mall (factor 3). Regarding internet shopping mall satisfaction, differences were significant across levels monthly pocket money and apparel purchase frequency of in internet shopping mall.

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A Study on the Analysis of Scaling Failure Cause in L-Shoulder Concrete Structure (L형측구 콘크리트 구조물의 표면박리파손 원인분석에 관한 연구)

  • Jeon, Sung Il;Nam, Jeong Hee;Ahn, Sang Hyeok;An, Ji Hwan
    • International Journal of Highway Engineering
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    • v.16 no.6
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    • pp.27-37
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    • 2014
  • PURPOSES : The purpose of this study is to verify the causes of surface scaling at L-shoulder concrete structure. METHODS : From the literature reviews, mechanisms of frost damage were studied and material properties including strength, air void, spacing factor and scaling resistance of L-shoulder concrete structure were analyzed using core specimens taken by real fields. RESULTS : The spacing factor of air void has relatively high correlation of surface conditions : lower spacing factor at good surfacing condition and vice versa. If the compressive strength is high, even thought spacing factor does not reach the threshold value of reasonable durability, the surface scaling resistance shows higher value. Based on these test results, the compressive strength also provide positive effect on the surface scaling resistance. CONCLUSIONS : The main causes of surface scaling of L-shoulder could be summarized as unsuitable aid void amount and poor quality of air void structure. Secondly, although the compressive strength is not the governing factor of durability, but it shows the positive effect on the surface scaling resistance.