• Title/Summary/Keyword: mass selection

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Analysis of Major Environmental Items for Railroad Construction in the EIA Process (철도사업 환경성평가서 검토시 주요항목에 대한 분석)

  • Lee, Minjoo;Kim, Minkyung;Lee, Sangdon
    • Journal of Environmental Impact Assessment
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    • v.22 no.6
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    • pp.739-744
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    • 2013
  • Recently, railroad construction becomes an alternative considering environmental merits such as mass transportation, safety, economy and energy efficiency. Also railroad can have 3 to 4 times better in economy compared to road construction. However, long line and unavoidable sensitive areas hinders railroad construction often resulted in ecosystem degradation. This paper reviewed 27 cases of EIS submitted during 2003-2006 and reviewed major issues on Animal-Plants and Landscape. Noise-Vibration (13.5%), Water Quality (13.5%), Wastes (10.8%) appeared to be most frequent factors to supplement. Route selection in the railroad is the most sensitive issues so that public participation and hearing should be involved in the early stage of the process and social and cultural factors also must be considered to make a final decision on the railroad route location and selection.

A Study on Headline Typography in Newspaper & Magazine Advertisement (신문.잡지광고에 있어서 헤드라인 서체의 활용에 따른 비교 연구)

  • 문영만
    • Archives of design research
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    • v.21
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    • pp.77-86
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    • 1997
  • Modern society has created the age of mass media image. Advertising media strongly stimulate and influence the image contact and the frequency of receivers by visual communication media in everyday life. Until today no consciousness concerning the necessity of typographic visual image and it's selection for newspaper advertising has been developed. The necessity of headline typography visual image in newspaper advertising and it's selection should be considered a problem that must be solved by a more reasonable and logical approach, like it is done in the case of advertising copy, in order to increase the efficiency of advertising for the consumer.

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Estimation of amplification of slope via 1-D site response analysis (1차원 지반응답해석을 통한 사면의 증폭특성 규명)

  • Yun, Se-Ung;Park, Du-Hee
    • Proceedings of the Korean Geotechical Society Conference
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    • 2009.03a
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    • pp.620-625
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    • 2009
  • The seismic slope stability is most often evaluated by the pseudo-static limit analysis, in which the earthquake loading is simplified as static inertial loads acting in horizontal and/or vertical directions. The transient loading is represented by constant acceleration via the pseudostatic coefficients. The result of a pseudostatic analysis is governed by the selection of the value of the pseudostatic coefficient. However, selection of the value is very difficult and often done in an ad hoc manner without a sound physical reasoning. In addition, the maximum acceleration is commonly estimated from the design guideline, which cannot accurately estimate the dynamic response of a slope. There is a need to perform a 2D dynamic analysis to properly define the dynamic response characteristics. This paper develops the modified one-dimensional seismic site response analysis. The modified site response analysis adjusts the density of the layers to simulate the change in mass and weight of the layers of the slope with depth. Multiple analyses are performed at various locations within the slope to estimate the change in seismic response of the slope. The calculated peak acceleration profiles with depth from the developed procedure are compared to those by the two-dimensional analyses. Comparisons show that the two methods result in remarkable match.

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Missing Type I AGNs in the local universe

  • Kim, Ji Gang;Kim, Jae Hyuk;Lee, Seung Eon;Park, Daeseong;Woo, Jong-Hak;Kwon, HongJin
    • The Bulletin of The Korean Astronomical Society
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    • v.37 no.2
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    • pp.83.2-83.2
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    • 2012
  • Type I AGNs are classified by the presence of broad emission lines while Type II AGNs show narrow emission lines only. All-sky surveys such as SDSS provide large AGN samples for statistical studies. However, the AGN samples suffer selection bias due to the incomplete selection criteria. To investigate the missing Type I AGNs in optical spectroscopic surveys, we start with a sample of SDSS Type II AGNs at 0.02 < z < 0.05, using the MPA-JHU SDSS DR7 catalog. We search for the hidden broad $H{\alpha}$ component with both visual inspection and the multi-component spectral decomposition method. Out of 1383 Type II AGNs, we find a total of 62 missing Type I AGNs (~4.5%). The sample has mean black hole mass, log $(M_{BH}/M_{SUN))=6.48{\pm}0.53$, and luminosity, log $(L_{H{\alpha}}/ergs^{-1})=40.52{\pm}0.33$, with Eddington ratio, log $(L_{bol}/L_{Edd})=-1.51{\pm}0.41$. We will describe the sample and present the $M_{BH}-{\sigma}_*$, and $M_{BH}-M_*$ relations of the sample in the context of the BH-galaxy coevolution.

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Expression of Dengue virus EIII domain-coding gene in maize as an edible vaccine candidate

  • Kim, Hyun A;Kwon, Suk Yoon;Yang, Moon Sik;Choi, Pil Son
    • Journal of Plant Biotechnology
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    • v.41 no.1
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    • pp.50-55
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    • 2014
  • Plant-based vaccines possess some advantages over other types of vaccine biotechnology such as safety, low cost of mass vaccination programs, and wider use of vaccines for medicine. This study was undertaken to develop the transgenic maize as edible vaccine candidates for humans. The immature embryos of HiII genotype were inoculated with A. tumefaciens strain C58C1 containing the binary vectors (V662 or V663). The vectors carrying nptII gene as selection marker and scEDIII (V662) or wCTB-scEDIII (V663) target gene, which code EIII proteins inhibite viral adsorption by cells. In total, 721 maize immature embryos were transformed and twenty-two putative transgenic plants were regenerated after 12 weeks selection regime. Of them, two- and six-plants were proved to be integrated with scEDIII and wCTB-scEDIII genes, respectively, by Southern blot analysis. However, only one plant (V662-29-3864) can express the gene of interest confirmed by Northern blot analysis. These results demonstrated that this plant could be used as a candidated source of the vaccine production.

A study on the abrasion resistance of punching carbide material of die for the application of SCP-1 material (SCP-1재료 적용을 위한 초경재료 펀치의 내마모성에 대한 연구)

  • Kim, Seung-Soo;Lee, Min;Lee, Chun-Kyu
    • Design & Manufacturing
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    • v.13 no.2
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    • pp.44-48
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    • 2019
  • Motor core products are used as materials for electrical steel sheets and cold-rolled steel sheets according to the performance of motors. The cemented carbide material of the mold punch applied to the motor core material causes many troubles due to abrasion and burr problem. The selection of these materials has a great effect on the production life, mass production, product quality as well as mold life. The cemented carbide applied to the products of the motor core is recognized as a very important part. In this study, cold rolled steel sheet was applied to motor core SCP-1 steel 1.0mm, and The effects of abrasion and punching oil on the shear process were investigated for the selection of cemented carbide. Experiments were conducted to select and apply cemented carbide only for the motor core punch optimized for cold rolled steel. The results showed that the cemented carbide material of $CDK3^{***}$ produced the least wear and burrs.

A Study on Key Parameters and Distribution Range in Rock Mechanics for HLW Geological Disposal (고준위방사성폐기물 심층처분을 위한 암반공학분야 핵심 평가인자 및 분포범위 연구)

  • Dae-Sung, Cheon;Won-kyong, Song;You Hong, Kihm;Kwangmin, Jin;Seungbeom, Choi
    • Tunnel and Underground Space
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    • v.32 no.6
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    • pp.530-548
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    • 2022
  • The site selection process for deep geological disposal of high-level radioactive waste will be conducted in stages, and 103 evaluation parameters related to site selection have been proposed. In the field of rock mechanics and rock engineering, there are 33 evaluation parameters for intact rock, joint and rock mass, and they are applied in the basic and detailed investigation stages. In this report, uniaxial compressive strength, in-situ stress, joint distribution, and rock mass classification were selected as the main evaluation parameters, and among them, uniaxial compressive strength and in situ stress were selected as key evaluation parameters. Statistical techniques or regression analysis were performed for granite in Wonju and Chuncheon to evaluate the distribution range for the selected key evaluation parameters. The average of the uniaxial compressive strength in the Wonju area estimated through the posterior distribution is about 171 MPa, and about 123 MPa in the Chuncheon area. The maximum in situ stress acting in the Wonju area was less than 30 MPa and less than 40 MPa in the Chuncheon area. The direction of the maximum horizontal stress calculated by regression analysis was 101° in Wonju, and in the case of Chuncheon, it was 95°, respectiviely.

Genetic and Phenotypic Evaluation of Milk and Fat Production Traits and Their Interrelationship in (Zebu×European) Crossbred Cattle Using Parent Group Mixed Model

  • Singh, D.;Yadav, A.S.;Dhaka, S.S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.16 no.9
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    • pp.1242-1246
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    • 2003
  • Data pertained to 335 crossbred cows comprising of 1/2 Friesian (F) + 1/2 Hariana (H), 1/2 F + 1/4 Jersey (J) + 1/4 H, 1/2 F + 1/4 Brown Swiss (BS) + 1/4 H, 1/2 F + 1/4 Red Dane (R) + 1/4 H, FR (I) and FRH (I) genetic groups extending over a period of 21 years (1970-1990) maintained at Animal Farm of CCS HAU, Hisar. The averages for first lactation milk yield was $2,486.24{\pm}80.26kg$ and peak yield of first three lactation were $11.35{\pm}0.72kg$, $13.97{\pm}0.60kg$ and $16.02{\pm}0.42kg$, respectively. The lifetime milk production was observed as $11,305.16{\pm}1,004.52kg$ in crossbred cattle. The average first lactation fat yield was observed as $102.06{\pm}0.01kg$ and peak fat yield of first three lactation were $0.458{\pm}0.01$, $0.490{\pm}0.01$ and $0.500{\pm}0.02kg$, respectively. The lifetime fat production was estimated as $502.31{\pm}45.90kg$. LTMP and LTFP had reasonably good additive genetic variance which could be exploited either through mass selection/combined with family or pedigree selection. FLMY, peak yields and LTMP had significant positive phenotypic correlation with FLFY and LTFP and the correlation at the genetic level were also higher and positive for these traits. Finally, peak week milk yield of first lactation (PMY1) was the earliest available trait having desirable and significant correlation at phenotypic and positive at genetic level with FLFY, PFY1 and PFY2, PFY3 and LTFP and selection for this trait will help in early evaluation of sires and dams and will increase genetic advancement per unit of time.

Perception on Optimal Diet, Diet Problems and Factors Related to Optimal Diet Among Young Adult Women Using Focus Group Interviews - Based on Social Cognitive Theory - (포커스 그룹 인터뷰를 이용한 젊은 성인 여성의 식생활 실태 및 관련 요인 - 사회인지론에 근거하여 -)

  • Kim, Hye Jin;Lee, A Reum;Kim, Kyung Won
    • Korean Journal of Community Nutrition
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    • v.21 no.4
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    • pp.332-343
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    • 2016
  • Objectives: Study purpose was to investigate perception on diet, diet problems and related factors among young adult women using focus group interviews (FGI) based on the Social Cognitive Theory (SCT). Methods: Eight groups of FGI were conducted with 47 female undergraduate or graduate students. Guide for FGI included questions regarding perception on optimal diet, diet problems and cognitive, behavioral, and environmental factors of SCT. FGI were video, audio-taped, transcribed and analyzed by themes and sub-themes. Results: Subjects showed irregular eating habits (skipping breakfast, irregular meal time) and selection of unhealthy foods as the main diet problems. Regarding cognitive factors related to optimal diet, subjects mentioned positive outcome expectations (e.g., health promotion, skin health, improvement in eating habits, etc.) and negative outcome expectations (e.g., annoying, hungry, expensive, taste). Factors that promoted optimal diet were mainly received from information from mobile or internet and access to menu or recipes. Factors that prevented optimal diet included influence from friends, lack of time and cooking skills. Behavioral factors for optimal diet included behavioral capability regarding snacks, healthy eating and smart food selection. Subjects mentioned mass media (mobile, internet, TV) as the influential physical environment, and significant others (parents, friends, grandparents) as the influential social environment in optimal diet. For education topics, subjects wanted to learn about healthy meals, basic nutrition, disease and nutrition, and weight control. They wanted to learn those aspects by using mobile or internet, lectures (cooking classes), campaign and events. Conclusions: Study results might be used for planning education regarding optimal diet for young adult women. Education programs need to focus on increasing positive outcome expectations (e.g., health) and behavioral capability for healthy eating and food selection, reducing negative outcome expectations (e.g., cost, taste) and barriers, making supportive environments for optimal diet, and incorporating topics and methods found in this study.

High Yield Saponin Production by Mass Cultures of Ginseng Transformed Tissue I. Induction, Culture of Transformed Tissue and Selection of High-Saponin-Producing Clones in Ginseng (인삼 형질전환 조직의 다량배양에 의한 Saponin 고 생산 I. 인삼에서 형질전환 조직의 유도, 배양과 Saponin 고 생산능주 선발)

  • 이정석;고경민
    • KSBB Journal
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    • v.9 no.2
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    • pp.157-164
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    • 1994
  • Hairy root clones of Panax ginseng were established by selection of some hairy roots formed on the leaf, stem and root segments transformed with Agrobacterium rhizogenes strain $A_4$. The transformed roots grew well in MS medium under the dark condition. To confirm the transformation with Ri-T-DNA, dot blot hybridization and opine analysis were Performed. Among four hairy roots induced from different part of ginseng, the HB3 hairy roots were examined for selection of high-saponin-producing clones. Four clones isolated from HB3 hairy root cultures displayed various phenotypes characterized by growth and total saponin content. Maximum growth was obtained for cultures of HB3-10 clone and the content of total saponin was 0.55 wt%. However, higher amount of total saponin was obtained with HB3-2 clone cultures(0.74 wt%) in spite of lower growth. Dot blot hybridization confirmed the introduction of Ri-T-DNA in the plant genome. In the opine test, agropine and mannopine were detected from all hairy root clones.

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