• Title/Summary/Keyword: Pioneering

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Characteristics of Flexural Behavior of Composite Section Consisting of Steel Girder with 80MPa High Strength Concrete on Compressive Flange (압축 플랜지에 80MPa급 고강도 콘크리트가 합성된 I형 강거더의 휨거동 특성)

  • Lee, Juwon;Yang, In-Wook;Lim, Eol;Ha, Tae-Yul;Lee, Kwan-Jong
    • Journal of the Society of Disaster Information
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    • v.13 no.4
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    • pp.455-464
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    • 2017
  • Static loading test was performed on a composite girder with an I-shaped steel girder and SUPER concrete on the top of the steel in order to evaluate flexural behavior characteristics. Total length of the test specimen was 25m long and the depth was 786mm including compressive concrete section('casing' hereafter) with 80MPa strength. 4-point loading on simply-supported beam was applied up to 2,010kN. Results showed that yield strength at tensile steel was 2.7 times greater than service load and the ratio of ductility was 1.481. No cracks were found on the casing surface and the relative slip between different sections was insignificant.

Mineral, Nutritional, and Phytochemical Profile, Total Phenolic Content, and Radical Scavenging Activity of Philippine Bamboo "Bolo" Gigantochloa levis (Blanco) Merr. Leaves

  • Tongco, Jovale Vincent V.;Rodriguez, Evelyn B.;Abasolo, Willie P.;Mun, Sung Phil;Razal, Ramon A.
    • Natural Product Sciences
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    • v.22 no.1
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    • pp.60-63
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    • 2016
  • The study is a pioneering effort to determine the mineral, nutritional, and phytochemical composition and phenolic content and to determine the free radical scavenging activity of Gigantochloa levis (Blanco) Merr, a native bamboo species (locally known as "bolo") in the Philippines. Proximate analysis showed that air-dried G. levis leaves contain 15.8% ash, 22.6% crude protein, 1.2% crude fat, 29.3% crude fiber, and 19.7% total sugar. Phytochemical tests indicated the presence of diterpenes, triterpenes, saponins, phenols, tannins, and flavonoids in both the ethanolic and aqueous leaf extracts, while phytosterols were only detected in the ethanolic extract. Folin-Ciocalteu assay determined the total phenolic content in gallic acid equivalents (GAE) to be $85.86{\pm}3.71$ and $32.32{\pm}1.01mg\;GAE/100g$ dried sample for the ethanolic and aqueous extracts, respectively. The total phenolic content in quercetin equivalents (QE) was $74.44{\pm}3.11$ and $29.43{\pm}0.85mg\;QE/100g$ dried sample for the ethanolic and aqueous extracts, respectively. The radical scavenging activity of the different solvent fractions containing varying concentrations of the extract was determined using the 2, 2-diphenyl-1-picrylhydrazyl (DPPH) assay. The ethyl acetate and 1-butanol fractions were found to have the highest radical scavenging activity. Mineral analysis via Energy Dispersive X-Ray Spectrometry (EDS) of the ash of G. levis leaves showed that Si is the major component, followed by K and Mg. These results point to the potential of G. levis leaves as a source of minerals and bioactive compounds with medicinal value.

Strategies for the Promotion of Geographic Information System Industries in the Ubiquitous Computing Age (유비쿼터스 시대의 GIS산업 발전전략)

  • Kim, Jung-Hoon
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.26 no.1
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    • pp.9-16
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    • 2008
  • Korea's GIS market has been proliferating since the 1990s, but still its scale and the structure require overall rearrangements. Recently as the needs and initiatives from central and local governments go stronger to drive 'u-City(ubiquitous City)' developments, there are much more demand of spatial information from sectors like city management, construction, environment and so on. Through the merge between GIS and the advanced Information and Telecommunication Technology, the introduction of new Ubiquitous IT is swiftly changing GIS market environments, so the GIS industry is to be prepared for this trend. The pioneering developments of Ubiquitous-related GIS technologies are expected to highly boost spatial data and related industries, and the pre-occupancy of those technologies in the world would enable the expansion of overseas export market. In the context of these epoch-making chances, by looking into the actual status of GIS industry, this study is to investigate the actual accomplishments to foster the GIS industry through Korea's National GIS Master Plan. Thereby, impending issues will be discussed to provide useful problem-solving suggestions.

The Protein rich Food Mixtures for Korean Infants (유유아(乳幼兒) 및 성장기 아동을 위한 영양식품 개발에 관한 연구 -흰쥐 성장에 미치는 영향-)

  • Ho, Jin-Hee;Kim, Sook-He
    • Journal of Nutrition and Health
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    • v.3 no.2
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    • pp.95-99
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    • 1970
  • Korea is one of the typical rice eating countries where availability of animal protein is limited even for the growing generation. Nutritive food products for infants and children are not available commercially in large scale at the present time, although a limited amount of expensive milk products are produced. The present study deals with a pioneering attempt on a new food mixture to meet this demand. Several food mixtures, possibly produced in the country, consisting of rice, soybean, FPC, vitamin, minerals and other food additives are developed in this work Sixty female and male rats aged $30{\sim}40$ days were divided into five groups, twelve rats each. The rats had been maintained with the six different diets, as follow. Formulation of proposed infant food mixturesComposition F-R-1 F-S-2 F-F-3 F-P-4 S Rice 100% 40% 37% 46% 70% Sugar - 12 13 10 70 Casein - - - - 20 Bean - 40 37 24 - Yeast - 3 2 3 - Mineral Vitamain - 2 4 2 4.3 F.P.C - 3 4 7 - Fat - - 4 8 4 Cod liver Oil - - - - 3 The findings of this study presented in FER, PER, final organ weights, body weights growth, percentage of nitrogen retention in the body. F-P-4 group tended to remain the heaviest and F-R-1 the lightest in the body weight among three groups throughout the experimental period. In terms of FER (Feed Efficiency Ratio) and PER (Prortein E. R.) value, F-P-4 group kept the highest record throughout. F-P-4 group showed the highest value of nitrogen retention in the body. In comparision between F-P-4 groups and casein 20% group (standard) in all respects of this experiment, F-P-4 group which is the most superior among experimental group, revealed statisfically no significant inferior than that of standard group. This fact could be interpreted that most limiting a. a., methionine in the soy protein produced little inferiority of the experimental groups in the study.

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Characteristics and Germination of Xanthoceras sorbifolia Bunge Seeds Originated from Inner Mongolia and Liaoning, China

  • An, Chan-Hoon;Lee, Hyun-Seok;Yin, Zhi-Yang;Yi, Jae-Seon
    • Journal of Forest and Environmental Science
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    • v.27 no.3
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    • pp.151-156
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    • 2011
  • Seeds of Xanthoceras sorbifolia Bunge were collected from two plantations and two superior trees in Inner Mongolia: and one plantation and one superior tree in Liaoning, China in late August, 2011. Yellowhorn or goldenhorn is an important tree species, from the aspects of source of edible oil and biodiesel and pioneering capacity of degraded and desert land. Characteristics investigated were seed length, width, and weight: weight and volume of 1,000 seeds: and weight and volume of one-liter seeds. The seeds of Qingsonglingxiang No. 1, growing alone in an open space, showed the highest values in seed length (16.08 mm), width (14.48 mm) and weight (1.40 g), while those of Tree No. 160 in Ar Khorqin Banner were the lowest ones: that is, 11.48mm for length, 11.81 mm for width, and 0.73 g for weight, respectively. Traits of seeds varied quite much between trees and among areas; for example, Tree No. 38 and No. 160 produced quite different seeds in several traits, although they are adjacent to each other in the same farm. Weight of 1,000 seeds varied from 718.0 g to 1,010.1 g and volume from 0.76 L to 1.52 L. Weight of one-liter seeds were 522.3 g to 688.2 g, while the number of seeds were 603 to 935. Seeds which were soaked in the water at $4^{\circ}C$ for 2 days showed the highest germination rate (89%) in a 30-day test, which was about 10% to 40% higher than those of non-treatment and dipping treatment at $36^{\circ}C$ followed by keeping under room temperature for 2 days. 81% of seeds in the wet sand at room temperature germinated, while 23% of seeds deprived of seed coat germinated. It is necessary to understand seed traits to select superior clones or provenances for the increased, unfluctuating production of seed.

Plastic surgery and specialty creep: an analysis of publication trends

  • Mackenzie, Ethan L.;Larson, Jeffrey D.;Poore, Samuel O.
    • Archives of Plastic Surgery
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    • v.48 no.6
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    • pp.651-659
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    • 2021
  • Background Many surgical specialties have had pioneering influences from plastic surgeons. However, many of these areas of practice have evolved to include surgeons from diverse training backgrounds. This raises the question as to whether the prominence of other specialties in clinical practice translates to greater research productivity in these areas. The objective of this paper is to investigate the publication volumes of plastic surgeons in selected areas of practice compared to surgeons from other disciplines. Methods PubMed was used to examine publication trends in areas associated with plastic surgery. Searches for the following topics were performed: head and neck reconstruction, hand surgery, breast reconstruction, ventral hernia repair, abdominal component separation, brachial plexus injury, craniofacial surgery, and aesthetic surgery. Affiliation tags were used to examine contributions from nine specialties. Web of Science was used to identify the top cited articles for the last 10 years in each area. Results Articles by non-plastic surgeons comprise the majority of the literature for all areas of practice studied except for breast reconstruction and aesthetic surgery. Despite this, plastic surgeons contributed the greatest number of top cited articles over the last 10 years for five of the areas of practice. Conclusions While plastic surgeons do not contribute the greatest proportion of articles published each year in several of the selected areas of practice, they do publish a larger number of articles that are the most cited. Plastic surgeons remain the dominant academic force in terms of volume and citations for both breast and aesthetic surgery.

A study on the characteristics of Judith Clark's fashion exhibitions (주디스 클락의 패션 전시에 나타난 연출 특성)

  • Kim, Ji Yul;Ma, Jin Joo
    • The Research Journal of the Costume Culture
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    • v.27 no.4
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    • pp.310-322
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    • 2019
  • Since the late 2000s, fashion exhibitions have expanded to encompass a variety of concepts and sizes, and the need for research on exhibition planning, installation, and direction, including curating, is emerging. In this context, basic research is deemed necessary to encourage more experimental and in-depth research into the planning and orientation of domestic fashion exhibitions. Accordingly, by analyzing the exhibitions of Judith Clark, a pioneering fashion curator, and fashion exhibition planner, the aim of this study is to examine the characteristics and directing points of her curation. This study proceeds as follows: first, the concept and type of fashion exhibition and curation are investigated. Second, the exhibition cases curated or produced and installed by Judith Clark are examined and analyzed. Finally, based on this analysis, the characteristics and directing points of her curation are identified. In exhibitions, Clark's directing style features use of a variety of objects, the diversification of the flow-path through space division, and collaborations with various fields or experts. Clark's curation points, based on such characteristics, are as follows: reproduction-oriented curation to capture the age of the time based on historical research; storytelling-based curation; and transboundary curation with multiple methods and open processes. This study is expected to serve as a foundation and precedent that will lead to further research on fashion exhibitions and implementation.

The Power Brokerage Trading System for Efficient Management of Small-Scale Distributed Energy-Resources (소규모 분산에너지자원의 효율적인 관리를 위한 전력중개거래시스템)

  • Yang, Soo-Young;Kim, Yo-Han;Lee, Woo;Kim, Won-Jung
    • The Journal of the Korea institute of electronic communication sciences
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    • v.16 no.4
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    • pp.735-742
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    • 2021
  • Recently, renewable energy-related power generation facilities have been surging due to the government's "Renewable Energy 3020", "Green New Deal", "2050 Carbon Neutrality" and "K-RE100" policies. Most renewable energy facilities are small and distributed, making it difficult to manage efficiently, and small distributed resources less than 1MW are having a hard time with participating in the market due to the limited sales and avoidance of trading. In particular, the intermittency of renewable energy has a significant impact on the stability of the power grid. The government is seeking to address volatility and intermittency issues through 'small distributed resource brokerage trading, and to expand the systematic resourceization and acceptability of heterogeneous large and small distributed resources. In this work, we intend to apply an AI-based power generation prediction model to a distributed resource brokerage trading system so that it can be utilized as a foundation platform for pioneering new energy business markets.

A Study on the Direction of Digital Convergence and Multidisciplinary Education based on Rhythmik, Music Physiology and Musicians' Medicine, Performance Science (리드믹, 음악생리학과 음악인의학, 행위예술과학을 중심으로 본 디지털 융복합 교육의 방향성 연구)

  • Eum, Hee Jung;Kim, Hee-Cheol;Roh, Kyeong-Won
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.23 no.12
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    • pp.1726-1733
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    • 2019
  • Movement is everything in life and music is with our whole lives. Based on movement and sound, art has developed and reflected the times with close ties to technology and is creating new cultural content in the digital age. The absence of experts and research institutes with academic knowledge and experience in various fields compared to the frequency with which music and body movements are interwoven in the intermedia art and education of convergence is a real problem. Introducing the Rhythmik that studied the most basic principles of music and exercise through the precedent of foreign universities, we raise the need to introduce music physiology, musicians' Medicine and music performance science, the areas we studied together. It presents a new direction in the convergence era and education in pioneering research areas in which the only "I myself" systematically recognizes the movement to become the subject through physiology and medicine and scientifically moves and expresses music as a medium.

Limitation and Overcoming in New Women Literature: Ella Hepworth Dixon's The Story of a Modern Woman (신여성문학의 한계와 극복: 엘라 헵워스 딕슨의 『모던여성의 이야기』)

  • Kim, Heesun;Kim, Ilgu
    • English & American cultural studies
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    • v.17 no.1
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    • pp.55-79
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    • 2017
  • Ella Hepworth Dixon's The Story of a Modern Woman is a pioneering female writer?s important work which was not deeply studied yet very influential in new women literature and its cultural global impact. Although women had been often praised for their beauties specially by romantic poets but their self-realization and innate values were not widely recognized until new women writers advocated their desires and active roles in the society at the end of the $19^{th}$ century. The new women writers including Ella Dixon gained popularity with their professional skills as the journalists or the contributors to the journals which were suddenly popular and actively circulated among Victorian women. From the 1880s to 1920s, in contrast with the traditional images of wives as ?the angel in the house?, these women new women writers broke the yoke of subjugated womanhood and instead tried to freely express their independent spirits and demanded their roles in the society. Although they were criticized sometimes as "the daughter of a new guise" "a lady of restless sex" or "the wild women," new girls? perky images in new women fiction brought into the new cultural phenomenon which led to the ?flapper? girl in the 1920s. Ella Dixon?s protagonist Mary Erle, strikingly similar to author herself, was a representative new woman who displayed a wide range of new cultural perspectives from a feminist?s viewpoint, but her untimely desire in the capitalized society was not fully accomplished, just promising the potentiality of the female solidarity which might be achieved later by her feminist posterity.