• Title/Summary/Keyword: collection period

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Changes in the Microbial Distribution of Buyeo Royal Tombs: Tomb No. 1

  • Lee, Hyun Ju;Chung, Yong Jae
    • Journal of Conservation Science
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    • v.38 no.4
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    • pp.254-264
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    • 2022
  • Built in the 6th and 7th centuries during the Baekje period, the Buyeo Royal Tombs consist of seven tombs, including Tomb No. 1, which contains murals. To preserve Tomb No. 1 from damage caused by microorganisms, periodic microbial-distribution investigations are conducted. Following such investigations in August 2016, June 2018, and November 2019, the microbes were classified according to the investigation period, location of collection, and space. This study compares and analyzes the results. The concentration of airborne microorganisms in Tomb No. 1 and the number of microbial genera identified in each space of the tomb decreased as proximity to the main room with murals diminished. During the investigation period, the genera Bacillus, Cladosporium, Penicillium, and Streptomyces were commonly identified on Tomb No. 1. The microorganisms collected from the main room walls were mostly isolated from the east and west walls where the genera Bacillus, Cupriavidus, Paenibacillus, Pseudomonas, and Streptomyces were commonly identified in three or more walls. In particular, the genus Streptomyces is a dangerous strain capable of damaging murals by penetrating into and discoloring the pigments on them. The data generated from this study may be useful for future research on microbial distribution in other domestic mural tombs and those located in North Korea and abroad.

A Microgenetic Analysis on the Classification Strategy Used in Tasks Related to Science by College Students (대학생이 과학 관련 과제에서 사용한 분류 전략의 미시발생적 분석)

  • Choi, Hyun-Dong
    • Journal of the Korean Society of Earth Science Education
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    • v.4 no.2
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    • pp.151-165
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    • 2011
  • Following a microgenetic design, this study was analysed the characteristic and the change of classification strategy that appear in college students' classification activity. The 4 tasks were developed for classification activity; a shell as a familiar real things, an animal fossil as a unfamiliar real things, a snow flake as a familiar picture cards and galaxy as a unfamiliar picture card. Achieved study to 6 college students who major in elementary education. Data were collected by interview with subjects, subject's classification schema, investigator's observation of subject's activity, and videotaped that record subject's subject classification process over an extended period of 6 times. Result proved in this study is as following. In the 6 times of the data collection procedures, a strategy F identifying concrete attribution of classification objects and a more detailed strategy X3 combining qualitative, spatial and dimensional attribution were found and more frequently used in both groups of college students which reported a classification process and did not report the process. While discovery and absorption of both a concrete classification strategy and a detailed classification strategy were rapidly developed in the reporting group, they were gradually developed in the non-reporting group. In addition to this, as the data collection procedures were progressing, the college students were familiar with change factors of classification tasks and in the case of pictures the classification strategy showed more desirable changes.

The Lived Experience of the Women with Schizophrenia Taking Antipsychotic Medication (여성 정신분열병 환자의 항정신성 약물 복용 체험)

  • Song, Eun-Ju
    • Journal of Korean Academy of Nursing
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    • v.41 no.3
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    • pp.382-392
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    • 2011
  • Purpose: This study was done to identify some natural meaning through the dosage experience of psychoactive drugs in women patients with schizophrenia. Methods: The Hermeneutic phenomenology written by van Manen was used. The period for data collection was from November 2009 to January 2010. This study took place in mental health hospitals and mental health centers in two cities in North Jeolla Province. Nine patients with schizophrenia participated. Data collection was done through individual in-depth interview. Results: The seven natural subjects demonstrated by participants from this study were 'Pills forcibly taken like veiled threats', 'A terrible side effect, a side effect rooted slowly', 'Shame which cannot be hidden as a woman', 'A bad medicine took away from motherhood', 'The fate of a wife who can't be equal', 'A struggle for the complete recovery without promise', and 'Participants want the future without medicine'. Conclusion: The results of this study indicate that the urgent need to develop a safe and believable psychoactive drug for woman patients considering the time of menstruation, pregnancy, childbirth, and child raising.

Development of Test Simulator for Developing Fuel Quantity Measurement System for Supersonic Jet Trainer Conformal Fuel Tank (초음속항공기 보조연료탱크 연료량측정시스템 개발용 모사시험장치 개발)

  • Kim, Bong-Gyun;Park, Dae-Jin;Jeon, Hyeon-Wu;Lee, Sangchul
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.26 no.2
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    • pp.76-82
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    • 2018
  • A test simulator is needed to develop a fuel quantity measurement system that takes into account the roll and pitch motion of the aircraft. In this paper, we develop a test simulator that consists of attitude simulation equipment, fueling equipment, and data storage equipment. The attitude simulation equipment simulates the aircraft attitude. It is manufactured to operate pitch angle and roll angle movement. The fueling equipment supplies fuel to the supplementary fuel tank. The data storage equipment collects and stores the measured data. We also develop an automation software that operates the test simulator and collects data automatically. The test simulator has been automated to prevent testers from being exposed to toxic fuel. Through automation software, the collection period is reduced by one quarter compared to manual collection. The developed fuel quantity measurement system is verified through the test simulator.

Development of Thermal Storage System in Plastic Greenhouse(II) -Thermal performance of solar greenhouse system for hydroponic culture- (플라스틱 온실(溫室)의 열저장(熱貯藏) 시스템의 개발(開發)에 관(關)한 연구(硏究)(II) -수경재배용(水耕栽培用) 태양열(太陽熱) 온실(溫室) 시스템의 열적(熱的) 성능(性能)-)

  • Kim, Y.H.;Koh, H.K.;Kim, M.K.
    • Journal of Biosystems Engineering
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    • v.15 no.2
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    • pp.123-133
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    • 1990
  • Thermal performance of a solar heating plastic greenhouse designed for a hydroponic system was studied. The system was constructed with the air-water heat exchanger and thermal storage tank that were combined with hydroponic water beds. Experiments were carried out to investigate the daily average heat stored and released in thermal storage tank, average solar energy collection efficiency, average coefficient of performance, average oil reduction factor of thermal storage system, and the heat transfer coefficient during the nighttime in plastic greenhouse. The results obtained in the present study are summarized as follows. 1. Daily average heat stored in thermal storage tank and released from the thermal storage tank was 1,259 and $797KJ/m^2$ day, respectively. 2. The average solar energy collection efficiency of thermal storage tank was 0.125 during the experiment period. And the average coefficient of performance of thermal storage system in plastic greenhouse was 3.6. 3. The average oil reduction factor of thermal storage system and the heat transfer coefficient during the nighttime in plastic greenhouse were found to be 0.52 and $4.3W/m^2\;hr\;^{\circ}C$, respectively.

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Inorganic Components and Some Physical Properties of Sap from Sponge-gourd(Luffa cylindrica L.) as Affected by Collection Time (채취시기(採取時期)에 따른 수세미오이(Sponge-gourd; Luffa cylindrica L.) 수액(樹液)의 무기성분(無機成分) 및 물리적(物理的) 성질(性質)의 특성(特性))

  • Park, Jong-Sang;Lee, Jin-Il;Chang, Ki-Woon
    • Applied Biological Chemistry
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    • v.39 no.1
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    • pp.67-69
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    • 1996
  • Some physical properties and inorganic components of sap from sponge-gourd(Luffa cylindrica L.) were investigated for their changes affected as collection time. Huter valves, pH, turbidity and viscosity of the sap were not different. pH value was indicated at slightly alkalinity and decreased by culturing period. Potassium, calcium and magnesium were major inorganic components of the sap and podium, zinc and iron were minor components. Copper was not detected in open culturing and also manganes way not detected in all samples.

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Can cities become self-reliant in energy? A technological scenario analysis for Kampala, Uganda

  • Munu, Nicholas;Banadda, Noble
    • Environmental Engineering Research
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    • v.21 no.3
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    • pp.219-225
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    • 2016
  • Energy self-reliance is important for economic growth and development for any nation. An energy self-reliance technological analysis for Kampala the capital city of Uganda is presented. Three renewable energy sources: Municipal Solid Waste (MSW), solar and wind are assessed for the period of 2014 to 2030. Annual MSW generation will increase from $6.2{\times}10^5$ tons in 2014 to $8.5{\times}10^5$ and $1.14{\times}10^6$ tons by 2030 at 2% and 3.9% population growth respectively. MSW energy recovery yield varies from 136.7 GWh (2014, 65% collection) to 387.9 GWh (2030, 100% collection). MSW can at best contribute 2.1% and 1.6% to total Kampala energy demands for 2014 and 2030 respectively. Wind contribution is 5.6% and 2.3% in those respective years. To meet Kampala energy demands through solar, 26.6% of Kampala area and 2.4 times her size is required for panel installation in 2014 and 2030 respectively. This study concludes that improving renewable energy production may not necessarily translate into energy self-reliant Kampala City based on current and predicted conditions on a business as usual energy utilization situation. More studies should be done to integrate improvement in renewable energy production with improvement in efficiency in energy utilization.

A study on the textile pattern design of fashion designers' brands and H&M collaboration collections (H&M 콜라보레이션에 참여한 패션 디자이너 브랜드의 자체 제품과 콜라보레이션 제품에 활용된 텍스타일 패턴디자인 연구)

  • Lee, Eun Oak
    • The Research Journal of the Costume Culture
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    • v.21 no.1
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    • pp.93-116
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    • 2013
  • This paper explored and compared the textile pattern and motive design of fashion designers' brands and H&M collaboration collections. In particular, this study put it focus on textile pattern design of seven fashion design brands such as Roverto Cavalli and Versace, etc., which were collaborated with H&M. The color, motive type, motive layout, motive expression, and pattern drawing technique were collected from fashion internet sites over the five year period, and then were cross-sectionally examined and compared based on their color, motive type, motive layout, motive expression, and pattern drawing technique of products between fashion designers' brands and H&M collaboration collections. The analyses showed the following results: First, the similar color, motive type, motive layout, motive expression, and pattern were found between fashion designers' brands and H&M collaboration collections, in order to show the perspective texture of products to consumers. Second, H&M collaboration brands demonstrated unique textile design of H&M rather than the trendy design patterns. Finally, the textile design pattern used in H&M collection was more restricted in terms of motive expression technique and chromaticity than that used in fashion designers' brands.

A Historical Study for making a Chronological table of Choi Jongjun - A preceding study for the restoration of "Eouichwaryobang" (The Royal Physician's Essential Prescription) - (최종준(崔宗峻)의 년표(年表) 작성(作成)을 위한 역사적 고찰 - "어의촬요방(御醫撮要方)"의 복원을 위한 선행과제 -)

  • Ha, Jeong-Yong;Lee, Min-Ho;Kwon, Oh-Min;Ahn, Sang-Young;Ahn, Sang-Woo
    • Korean Journal of Oriental Medicine
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    • v.14 no.3
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    • pp.11-22
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    • 2008
  • The prime minister(樞密相公) Choi jongjun writes"Eouichwaryobang(御醫撮要方)"A.D. 1226 that is a Goryeo Period (A.D.$918{\sim}1392$). But today that has vanished, now. Inspite of the important worth of that book in Korea Traditional Medicine, there is no study about writer. So I research all the historical source about him. And I confront a historical source with the era for making a chronological table of Choi jongjun. I beliebe this survey make a great contribution towards the historical research of KTM. Now to conclude, In A.D. 1226, Choi Jongjun was Jung chuwonbusa(中樞院副使) or Chumseowonsa(簽書院事).

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Development of the web robot system for an efficient information delivery of portal sites classified by the business types (업종별 포탈 사이트의 효율적 정보제공을 위한 웹로봇 시스템 개발에 관한 연구)

  • Kim Gwang Myeong;Baek Sang Gyu;Kim Seon Ho
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2003.05a
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    • pp.98-104
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    • 2003
  • While the impact or internet on our everyday life keeps increasing, the internet users are turning toward the value added information only that suits their purpose instead of just wandering over a sea (pool) or information. Although it is easy to locate the information using various search engines. we still finds it time and cost consuming to update the existing information or to add similar Information. There are several portal sites managed by each industrial types or associations/organizations for the purpose or strengthening the competitiveness or small and medium-sized enterprises And currently, tremendous manpower and expenses are put into the selection and quality improvement or information to satisfy the needs toward the high qualify information by the specialized users in their fields collection and updating or the information is partially available manually during He period or budget allocation by the government it becomes problematic, however, to continue this service when the project expires. This report presents the system for the information collection, analysis and classification of portal sites operated for the special purposes and automatic upload to the proper sites. In addition. expression or web robots and application of robots and several information types are suggested which will eventually accomplish currency or information and automatic updates and addition or documents with the least expenses or maintenance.

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