• Title/Summary/Keyword: Cheon Won Gi

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Analysis of Visual Sensibility Evaluation of Naturally Colored Organic Cotton: Identification of Reliability and Proper Scouring Method

  • Park, Jang-Woon;Chang, Yoon;Hong, Won-Gi;Lee, Myung-Eun;Han, Ah-Reum;Chae, Young-Joo;Cho, Gil-Soo;You, Hee-Cheon
    • Journal of the Ergonomics Society of Korea
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    • v.30 no.2
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    • pp.311-317
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    • 2011
  • Objective: The present study was intended to identify (1) the intra- and inter-rater reliabilities of a visual sensibility evaluation protocol and (2) the effects of NaCOC color and scouring method on the visual sensibility of NaCOC. Thirty female participants(20s & 30s) were participated in the visual sensibility evaluation of NaCOC. Background: Interests in naturally colored organic cotton(NaCOC) increase rapidly in parallel with the social trend of eco-friendly living and wellbeing. Method: Three color sets (ivory, green, and coyote-brown) of NaCOC specimens including one untreated and four treated specimens($Na_2CO_3$; NaOH; enzyme; boiling water) were examined in the study. The visual sensibility evaluation was conducted by the test-retest method using nine pairs of bipolar visual sensibility adjectives(bright-dark; clear-murky; heavy-light; vivid-subdued; warm-cool; fresh-stale; strong-weak; showy-plain; and luxurious-cheap). Results: As a result of reliability of a visual sensibility evaluation protocol, inter-rater variability(average SD=1.06) of visual sensibility evaluation was more than 1.4 times the intra-rater variability(average SD=0.74). However, both the sensibility evaluation reliabilities did not show any systematic pattern of changes. Lastly, ANOVA and post-hoc analysis showed that preferred scouring methods for a visual sensibility adjective pair significantly vary depending on NaCOC color. Application: Both the reliability of visual sensibility evaluation protocol and the analysis of proper scoring method of NaCOC in the study would be useful information to design the affective textile.

Survey for Farmland Development in Western Coast of North Korea Using Satellite Image Data (인공위성 화상데이터를 이용한 북한 서해안지역의 농지기반조성 현황조사)

  • An, Gi Won;Jo, Byeong Jin;Seo, Du Cheon;Lee, Jeong Cheol
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.19 no.1
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    • pp.96-96
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    • 2001
  • The aim of this study was to find out and confirm the project formulation, feasibility, scale and locations on the farmland development projects such as planned and ongoing tideland reclamation and irrigation facilities along the western coast of North Korea using satellite image data, Landsat TM, JERS OPS and SPOT PAN and aged maps. In order to apply to the study, remote sensing technologies such as geometric correction. digital mosaicking, image merging, linear extraction and land cover classification were studied. As the results of the study, the reclaimable tidal flats are recognized at about 178,000 ha equivalent to 59% of announced 300,000ha. and 16,000 ha of completed, 17,000 ha of ongoing project areas although 27,000 ha were revealed to be completed during 1987-1993. Almost planned projects are appeared to be shortage of water supply due to their small watersheds, however, most projects are connected with 2000 mile canal system.

The Development of the Unfading Polyvinyl Butyral Gap-filling Material Based on Reversible Properties and Restoration of a Punchong Plate from Sam-cheon Temple Site with This Polyvinyl Butyral Product (가역성을 갖는 무황변 Polyvinyl Butyral 메움제의 개발과 이를 이용한 삼천사지 분청사기접시의 복원)

  • Han, Won-Sik;Wi, Koang-Chul;Park, Gi-Jung;Hong, Tae-Kee
    • Journal of Conservation Science
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    • v.25 no.3
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    • pp.293-298
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    • 2009
  • We fabricated the gap-filling material for antic-ceramics restoration which were made up polyvinyl butyral (butvar) base and silane system additive in iso-propyl solvent. This was made hardness control possible that user want. And it have very strong adhesion and shear strength properties and is shown the best properties for pigment filling, anti-contractibility, coloring as like epoxy system materials. Particularly, the yellowing and ir-reversibility problem in Epoxy restoration material were finally steadiness. So, there is guarantee in the eternity and stabilization of restoration for antic-celamics. And in order to show the reversible state of the restoration, we successfully dissolve this polyvinyl butyral gap-filling materials in solvent after perfect restoring the Punchong plate from sam-chun temple site subsequently.

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A Fundamental Study on the Quality Improvement of Lightweight Foamed Concrete with Admixture Types (혼화재료에 의한 경량기포 콘크리트의 품질향상에 관한 기초적 연구)

  • Shin Jae-Kyung;Jeong Kwang-Bok;Lee Youl-Koo;Lee Gun-Cheol;Yoon Gi-Won;Han Cheon-Goo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2006.05a
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    • pp.35-38
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    • 2006
  • This study investigated fundamental properties of lightweight foamed concrete using cement kiln dust (CKD) and both fly ash(FA) and stability agent. Test results showed that concrete incorporating more amounts of admixture decreased slump flow and it caused increase of superplasiticizer in order to secure the fluidity performance. In addition concrete adding stability agent showed stable flow state, resisting segregation of materials and decreasing bleeding capacity. Sinking depth of concrete incorporating 20% of CKD and adding 0.002% of stability agent was indicated at 0mm. For the properties of hardened concrete. compressive strength of concrete incorporating CKD declined due to a lower appearance density, compared with other specimens. The difference of that was not very significant and the value of ail specimen was higher than KS range. Moreover strength of concrete incorporating CKD was even higher at curing temperature $5^{\circ}C$. Tensile strength ratio of concrete incorporating CKD was indicated between 0.50 to 0.59, which is higher value than control concrete. Heat conductivity of concrete incorporating FA was under the KS range while concrete incorporating 20% of CKD was satisfied in KS. Concrete adding stability agent improved insulation performance due to the lower heat conductivity. In conclusion, it is possible that concrete incorporating 20% of CKD and adding 0.002% of stability agent can secure high quality of lightweight foamed concrete.

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Comparison of D-[18F]FMAU and L-[18F]FMAU as PET Imaging Agents for HSV1-TK Gene Expression

  • Moon, Byung-Seok;Jo, Nam-Hyun;Lee, Kyo-Chul;El-Gamal, Mohammed I.;An, Gwang-Il;Hong, Su-Hee;Choi, Tae-Hyun;Choi, Won-Kyoung;Park, Jin-Hun;Cho, Jung-Hyuck;Cheon, Gi-Jeong;Oh, Chang-Hyun
    • Bulletin of the Korean Chemical Society
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    • v.31 no.11
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    • pp.3309-3312
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    • 2010
  • D-[$^{18}F$]FMAU and L-[$^{18}F$]FMAU are F-18 labeled nucleoside analogue which have been efficiently synthesized in order to be a PET imaging probe. D-[$^{18}F$]FMAU and L-[$^{18}F$]FMAU were compared as PET imaging agents using HSV1-TK gene expressing tumor-bearing mice. Their cellular uptake profiles were also compared using MCA and MCA-TK cell lines. D-[$^{18}F$]FMAU demonstrated higher cellular uptake and higher accumulation in MCA-TK tumor regions than L-[$^{18}F$]FMAU. On the other hand, L-[$^{18}F$]FMAU showed higher MCA-TK/MCA ratio of %ID/g than that of D-[$^{18}F$]FMAU. L-[$^{18}F$]FMAU can be utilized as a good candidate for HSV1-TK PET imaging. It can be used for antiviral drug evaluation.

Slosh & Vibration Qualification Test for Fuel tank of Rotorcraft (헬기용 연료탱크 Slosh & Vibration 인증시험)

  • Jung, Tae-Kyong;Jang, Ki-Won;Jun, Pil-Sun;Ha, Byoung-Geun;Kim, Sung-Chan;Kim, Hyun-Gi;Lee, Gui-Cheon;Shin, Dong-Woo
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2010.11a
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    • pp.713-716
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    • 2010
  • Slosh and vibration effects of fuel inside of fuel tank can be occurred due to the acceleration and flight speed during the rotorcraft flight. It can lead to the failure of internal fuel component and fuel tank skin can be damaged. This is directly related to human survival. Military specification (MIL-DTL-27422D) specifies that stability of aircraft fuel tank and internal component against slosh &vibration load shall be verified through the qualification test procedures. This report shows the establishment of slosh and vibration test facility and KUH fuel tank qualification test result.

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Implement remote video monitoring system to sports coaching for athletes Based of IP-Camera (IP카메라기반의 운동선수 코칭용 원격 영상모니터링 시스템)

  • Park, Cheon-Il;Kim, Kyeong-Tae;Kim, Sang-Gi;Kang, Joon-Sang;Seo, SeungBeom;Lee, Jung-Hoon;Lee, Seung-Youn;Lim, Yun-Sik;Yu, Young-Sik;Kim, Joon-Won;Lee, Jong-Hoon;Lee, Jong-Sung;Lee, Seon-Hee;Cha, Jae-Sang
    • Journal of Satellite, Information and Communications
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    • v.8 no.2
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    • pp.6-11
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    • 2013
  • Recently sports science is various attempts to improve the athletes' performances. Above all they collect a results for the data and analyze the movement of the players after the game. Based on this, they are utilized to complement the vulnerability and how to improve. However, this way is not able to understand the movement a player and the flow of the game in real time. Because they are analyzed to match results based on the data. Therefore it is possible to managed for performance enhancement used to IT technology during the game in real-time.

Case Report on a Cerebral infartion Patient With Sinking of the spleen Gi Incontinence Of Urine And Stool (중풍(中風)으로 유발된 비허기함(脾虛氣陷)형 유뇨(遺尿) 및 대편실금(大便失禁) 환자 1례에 대한 임상적 고찰)

  • Lim, Dong-Seok;Choi, Ki-Suk;Seo, Chul-Hun;Lee, Young-Soo;Choi, Chang-Won;Ryu, Hyung-Cheon;Kim, Hee-Chul;Lee, Hyung-Ho
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.5
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    • pp.1350-1354
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    • 2006
  • The purpose of this study is to refort the effect of oriental demonstration treatments for the incontinence of urine and stool by cerebrovascular disease. He was treated with herbal medication, acupunture, moxibustion and physical therapy. Through oriental demonstration treatments, Improvement in incontinence of urine and stool by cerebrovascular disease, therefore reported here. The study suggests that therapeutic value of oriental demonstration treatments for the incontinence of urine and stool by cerebrovascular disease will De higher if more clinical studies and researching more cases are accomplished.

Design of Loop Type Inserting Slot Antenna to Apply Bluetooth/Zigbee/WiMax/WLAN(2.4~5.82 GHz) Band (Bluetooth/Zigbee/WiMAX/WLAN(2.4~5.82 GHz) 대역 응용을 위해 루프 형태를 삽입한 슬롯 안테나 설계)

  • Hong, Yoon-Gi;An, Sang-Chul;Jung, Hoon;Hong, Won-Gi;Jung, Cheon-Seok
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.20 no.5
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    • pp.435-443
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    • 2009
  • In this paper, we propose a microstrip slot antenna that works in Bluetooth, Zigbee, WiMAX and WLAN frequency bands($2.4{\sim}5.825\;GHz$). To get the wide bandwidth from the microstrip antenna proposed, we insert a pair of parastic strips along the feed line on the FR-4 dielectric substance(${\varepsilon}_r=4.8$). Furthermore, a simple geometrical rotation with quadrilateral slot is designed to maximize the bandwidth and to gain a wider frequency band than the conventional rectangular slot antenna. A additional design of the loop type is added to a cactus-shaped patched for 2.4 GHz ISM frequency band. The total measured bandwidth of the antenna is from 2.4 GHz to 6 GHz and the maximum gains of the antenna are 3.82 dBi, 4.48 dBi, 6.41 dBi and 6.65 dBi at the frequencies of 2.4 GHz, 3.5 GHz, 5.25 GHz and 5.77 GHz.

Agronomic Characteristics of Transgenic Japonica Rice 'Milyang 204' with Herbicide Resistance Gene (bar) (형질전환 제초제저항성 벼 밀양 204호의 농업적 특성)

  • Jeong Eung-Gi;Yi Gi-Hwan;Won Yong-Jea;Park Hyang-Mi;Cheon Nam-Soo;Choi Jun-Ho;Ku Yeon-Chung;Han Chang-Deok;Eun Mu-Yeong;Kim Tae-Sas;Nam Min-Hee
    • Journal of Plant Biotechnology
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    • v.32 no.2
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    • pp.85-90
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    • 2005
  • This study was conducted to investigated the major characteristics of genetically modified rice of 'Milyang 204' originated from Dongjinbyeo compared to a non-transgenic rice varieties Dongjinbyeo and Jun-ambyeo. Basta resistant transgenic rice lines carrying bar gene produced by the Yeongnam Agricultural Research Institute were evaluated for their agronomic characters. The transgenic Japonica rice of 'Milyang 204' showed inferior phenotypic traits compared to a non-transgenic rice variety Dongjinbyeo and Junambyeo. On the basis of UPOV (Union Internationale Pour la Protaection des Obtentions Vegetables) and NSMO(National Seed Management Office) the transgenic 'Milyang 204' showed difference in some traits out of some agronomic traits, such as leaf color, angle of flag leaf, number of spikelets, culm length, white core and white belly compared to the non-transgenic varieties rice.