• Title/Summary/Keyword: Li-Hak

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Server-Based User-Created Contents Processing System

  • Yeo, Myung-Ho;Kim, Hak-Sin;Roh, Kyu-Jong;Cho, Yong-Jun;He, Li;Kim, Hak-Cheol;Bok, Kyung-Soo;Yoo, Jae-Soo
    • International Journal of Contents
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    • v.4 no.4
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    • pp.12-17
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    • 2008
  • The web 2.0 is leading a rapid change of internet services. The UCC(User Created Contents) service is one of the representative internet services with web 2.0 paradigm. In this paper, we design and implement the UCC services prototype system for image and video. The proposed system does not need to install ActiveX and client programs on devices of users to edit their contents. All processes for editing UCC are conducted on the server. Our proposed system consists of the two components such as the multimedia editing subsystem and the metadata management system. They provide the API to UCC service developers or vendors. The multimedia editing subsystem supports editing for image and video, and the streaming services of video. The metadata management subsystem supports the metadata management and retrieval of image and video.

Interpretation and clinical meanings of cong Yin yin Yang(從陰引陽) cong Yang yin Yin(從陽引陰) ('종음인양(從陰引陽), 종양인음(從陽引陰)'의 해석과 활용에 대한 연구)

  • Jo, Hak-Jun
    • Journal of Korean Medical classics
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    • v.26 no.2
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    • pp.9-24
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    • 2013
  • Objectives : I would find out the interpretation of cong Yin yin Yang(從陰引陽) cong Yang yin Yin(從陽引陰) in Su Wen(素問) Yin Yang Yin Xiang Da Lun(陰陽應象大論) and its clinical meanings. Methods : I had searched the opinions of annotators about this paragraph and compared treatment principles that TCM clinicians, such as Li Dong-yuan(李東垣), Zhang Jie-bin (張介賓), Yu Jia-yan(喩嘉言) developed. Results : This paragraph is related to treatment principles of the paragraph Yang bing zhi Yin(陽病治陰) Yin bing zhi Yang. Li Dong-yuan applied it to treatment principle of internal injuries(內傷病), Zhang Jie-bin extended its clinical meanings to the opposite treatment principles(反治) such as gu han wu xie(求汗於血) sheng Qi wu Jing(生氣於精), yin huo gui yuan(引火歸源) and na Qi gui shen(納氣歸腎), Yu Jia-yan used it as treatment principle of tuo zheng(脫症). Conclusion : This paragraph can mean several messages and be applied to several treatment principles.

New Structure of SAW Resonator Filters on 64$^{\circ}$YX LiNbO3

  • Roh, Yong-Rae;Kim, Hak-Bong;Lee, Young-Jin;Koh, Kwang-Nak;Lee, Man-Hyung;Kim, Gang-Bo;Kim, Kwang-Hee
    • The Journal of the Acoustical Society of Korea
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    • v.15 no.4E
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    • pp.14-20
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    • 1996
  • The double mode SAW resonator filters have the serious shortcoming that out-of-band rejection above the passband is quite poor. Hence a new structure of the double mode filter is designed with the COM (Coupling Of MOdes) theory with better out-of-band rejection characteristics while keeping all the beauties of the conventional type. The second goal of the design is to reduce the planar size of the structure so that mass productivity of low frequency devices can be improved. For those purposes, several IDT's and relfector gratings are added to or subtracted from the conventional structure so that the modification can lead to better overall performance as a filter. As results of the investigation, several new double mode SAW resonator filter structures are developed. A new structure shows 10dB more out-of-band rejection that the conventional type with 25% reduced device size. Good agreement is demonstrated between the analytical results and experimental results for an illustrative 325MHz four pole resonator filter on 64°YX LiNbO3.

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The Classification and Criterion for Low Back Pain Examined from Reference Books of Yi Xue Ru Men(醫學入門) (『의학입문(醫學入門)』의 인용서적으로 살펴본 요통(腰痛)의 분류와 기준)

  • Jo, Hak-Jin
    • Journal of Korean Medical classics
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    • v.28 no.1
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    • pp.35-53
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    • 2015
  • Objectives : In order to find how reference books of Yi Xue Ru Men reflect the classification and criterion for low back pain(LBP). Methods : From reference books of Yi Xue Ru Men, select the texts on classification and criterion for LBP. Results : According to the causes of LBP, Chao Yuan Fang(巢元方) in Sui Dynasty assorted to 5 types of LBP at the very first. Chen Wu Ze(陳無擇) in Song Dynasty made 7 divisions by external, internal, and non-external, non-internal causes. According to the pulse of LBP, Yan Yong He(嚴用和) first categorized 4 groups, Zhu Zhen Heng(朱震亨) added another 4 groups. Aside from this standard, Zhu(朱震亨) adopted the cause standard. Depending on Yunqi(運氣), Lou Ying(樓英) classified 5 types. But his classification had been not adopted by any TCM books. According to symptom of 6 varieties(六變), Zhang Jie Bin(張介賓) assorted external(表), internal(裏), deficiency(虛), sufficiency(實), cold(寒) and heat(熱), add 2 groups besides them. But his categorization did not reflect Yi Xue Ru Men. Li Chan(李梴), the author of this book chose causes and pulse classification standards that Zhu Zhen Heng had adopt. Conclusions : In the side of classification and criterion for LBP, Li Chan first divided 2 group, external and internal injury. After it he subdivided both groups to 10 subgroup. His classification is similar to Chen(陳無擇)'s, but actually followed the classification for external and internal injury that was invented by Li Dong Yuan(李東垣).

The Origin and Changes of True-cold Damage(正傷寒) in Introduction to Medicine(醫學入門) (『의학입문(醫學入門)·상한편(傷寒篇)』 편제(編制) 중 정상한(正傷寒)의 명칭, 병명분류의 기원과 그 후 변화)

  • Jo, Hak-jun
    • Journal of Korean Medical classics
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    • v.29 no.2
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    • pp.55-78
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    • 2016
  • Objectives : The goal of this paper is to research what the name and concept of true-cold damage in Introduction to Medicine were originated from, and to trace the origin and changes of categorization of it after the book. Methods : Books concerned with true-cold damage were collected as many as possible, besides ones that Introduction to Medicine referred to, before the name, concept and categorization of it were searched and analysed. Results : The concept of true-cold damage in Introduction to Medicine, which had come from Lei Zheong Huo Ren Shu(類證活人書) in Song dynasty, was more similar to one of cold damage in a broad sense. The name that Li Chan appreciated, was derived from not Shang Han Zhi Ge(傷寒直格), but Shang Han Zheng Zhi Ming Tiao(傷寒證治明條) in Song dynasty. On the other hand, since Tao Hua(陶華) began to go into the details of cold damage in a narrow sense, most books had followed it. Whereas 11 diseases among 24 diseases of true-cold damage in Introduction to Medicine indirectly came from Lei Zheong Huo Ren Shu(12 diseases), 14 diseases among them were directly derived from Shang Han Zheng Zhi Ming Tiao(16 diseases) and 10 diseases were added containing syndromes of retained fluid and jaundice. The categorization in Introduction to Medicine scarcely adopted except Donguibogam(東醫寶鑑) and Uimunbogam(醫門寶鑑), while the categorization of true-cold damage in a narrow sense was mostly composed of 2 diseases, that is cold damage(傷寒) and wind damage(傷風). Conclusions : Li Chan had fulfilled the total conditions in which the concept, cause, symptoms, prescriptions and prognosis of 24 diseases in true-cold damage were equipped, in order to build up the system and categorization of it. To our regret, his scientific outcome had been hardly referred after his book.

Characterization of Blue Organic Light Emitting Diodes using TPM-BiP (TPM-BiP 청색 형광 재료의 전계발광특성)

  • Chang, Ji-Geun;Shin, Sang-Baie;Ahn, Jong-Myoung;Chang, Ho-Jung;Lee, Hak-Min;Gong, Myoung-Sun;Kim, Min-Young;Kim, Jun-Woo
    • Journal of the Semiconductor & Display Technology
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    • v.6 no.2 s.19
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    • pp.11-14
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    • 2007
  • For the fabrication of blue color organic light emitting diodes(OLED) with a high performance, 2-TNATA [4,4',4"-tris (2-naphthylphenyl-phenylamino)-triphenylamine] as hole injection material and NPB [N,N'-bis (1-naphthyl) -N,N'-diphenyl-1,1'-biphenyl-4,4'-diamine] as hole transport material were deposited on the ITO (indium tin oxide)/glass substrate by the vacuum thermal evaporation. After then, blue color emission layer was deposited using TPM-BiP[(4'-Benzoylferphenyl-4-yl)phenyl-methanone-Diethyl(biphenyl-4-ymethyl)phosphonate] and GDI602 as a light emitting organic material. Finally, the two kinds of OLEDs with the structure of $ITO/2-TNATA/NPB/TPM-BiP/Alq_3/LiF/Al and ITO/2-TNATA/NPB/GDI602/Alq_3/LiF/Al$ were prepared by in-situ deposition. The maximum current density and luminance were found to be about $588\;mA/cm^2\;and\;5239\;cd/m^2$ at 12V for the OLED sample with the structure of $ITO/2-TNATA/NPB/TPM-BiP/Alq_3/LiF/Al$. Color coordinate of blue OLED was x=0.18, y=0.18 (at llV) and the maximum current efficiency was 2.82 cd/A (at 6V) with the peak emission wavelength of 440 nm.

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Comparison of Azo-dye Removal Based on the Enzymatic Differences in T. versicolor and P. chrysosporium (T. versicolor와 P. chrysosporium의 효소발현 특성에 따른 Azo계 염료(Orange II) 제거 특성 비교)

  • Kim, Hak-Yoon;Oh, Je-Ill
    • Journal of Korean Society of Environmental Engineers
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    • v.27 no.7
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    • pp.712-718
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    • 2005
  • Stepwise reductions of glucose and Orange II concentration were observed from the experiment of both white-rot fungi such as T. versicolor and P. chrysosporium. As a result, typical removal patterns in those dual substrate system were categorized through several distinctive steps: initial lag period, primary and secondary carbon consumption periods. Also, based on the total removal amounts of Orange II, COD and Color during the experimental period, similar removal extent were observed from both species experiments, within the maximal error range of 5%. However, it was refereed that the internal steps of Orange II removal on enzymatic level should be different between two species: Enzyme Lac showed good affinity for Orange II removal in T. versicolor, however in P. chrysosporium enzyme LiP represented more close affinity to the similar experimental condition. Thus, even though the superficial removal amount of calcitrant Orange II at different fungal species was merely similar, removal pathway of enzymatic levels and intermediates produced during the fungal decomposition would be different.

Numerical Study on the Heat Transfer Characteristics of 360 Wh Li-ion Battery Pack for Personal Mobility (360 Wh급 퍼스널 모빌리티용 리튬이온 배터리 팩의 열전달 특성에 관한 연구)

  • Kim, Dae-Wan;Seo, Jae-Hyeong;Kim, Hak-Min;Lee, Moo-Yeon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.8
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    • pp.1-7
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    • 2017
  • This study numerically evaluates the heat transfer characteristics of a 360-Wh Li-ion battery pack. The analysis was done in ANSYS CFX using different cell arrangements, cell holders, and case materials for a personal mobility device program. A total of four cases of cell arrangements were considered, along with various materials for both the cell holder and the case, such as polypropylene, aluminum, and magnesium alloy. Out of the four cell arrangements, model 2 showed the best heat transfer performance, while aluminum showed the best heat transfer performance for the cell holder and case.

Effects of sodium diacetate and microbial inoculants on fermentation of forage rye

  • Yan Fen Li;Eun Chan Jeong;Li Li Wang;Hak Jin Kim;Farhad Ahmadi;Jong Geun Kim
    • Journal of Animal Science and Technology
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    • v.65 no.1
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    • pp.96-112
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    • 2023
  • Rye (Secale cereale L.) is a valuable annual forage crop in Korea but there is limited information about the impact of chemical and biological additives on fermentation characteristics of the crop. This experiment was conducted to investigate fermentation dynamics of wilted forage rye treated with the following six additives; control (no additive), sodium diacetate applied at 3 g/kg wilted forage weight (SDA3), 6 g/kg wilted forage weight (SDA6), inoculations (106 CFU/g wilted forage) of Lactobacillus plantarum (LP), L. buchneri (LB), or LP+LB. The ensiled rye sampled at 1, 2, 3, 5, 10, 20, 30, and 45 days indicated that the acidification occurred fast within five days of storage than the rest of the storage period. The microbial inoculants decline the pH of ensiled forage, more rapidly than the control or SDA treated, which accompanied by the decrease of water-soluble carbohydrates and increase of lactic acid. Compared with the control silage, all treatments suppressed ammonia-nitrogen formation below to 35 g/kg DM throughout the sampling period. Suppression of total microbial counting occurred in SDA6, LP, and LP + LB. The lactic acid production rates were generally higher in microbial inoculation treatments. Acetic acid concentration was lowest in the LP-treated silage and highest in the SDA- and LB-treated silages. The in vitro dry matter (DM) digestibility and total digestible nutrients were the highest in the silage treated with SDA (6 g/kg) at day 45 of ensiling. Based on lower ammonia-nitrogen concentrations and higher feed value, ensiling forage rye treated with SDA at 6 g/kg is promising through enhanced silage quality.

Comparison of Productivity and Feed Value of Silage Corn according to the Cutting Height

  • Yan Fen Li;Li Li Wang;Young Sang Yu;Xaysana Panyavong;Hak Jin Kim;Jong Geun Kim
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.43 no.3
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    • pp.129-137
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    • 2023
  • Corn silage is extensively utilized in ruminant feeding on a global scale, with substantial research efforts directed towards enhancing its nutritional worth and managing moisture content. The purpose of this study was to assess the impact of normal cutting height and elevated cutting height on whole-crop corn silage. Corn was harvested at heights of 15 cm and 45 cm above the ground, respectively, 45 days after heading. The harvested corn was cut into 2-3 cm lengths and packed into 20-liter plastic silos in triplicate. The results showed that dry matter (DM), crude protein (CP), water soluble carbohydrates (WSC), and in vitro dry matter digestibility (IVDMD) of C45 were significantly higher than those of the control, while the neutral detergent fiber (NDF) was significantly lower in C45 (p<0.05). The C15 had higher yields than C45 (p<0.05). There was no significant difference in the total digestible nutrients (TDN) yield of whole-crop corn silage. The increase in cutting height resulted in a larger change in moisture content and NDF per centimeter. After 60 days-ensiling, C45 showed significantly lower NH3-N concentrations. Moreover, C45 had significantly higher lactic acid concentration, lactic acid/acetic acid ratio, and lactic acid bacteria count compared to the control. Mold was not detected and the yeast count was less than 2 log10 cfu/g fresh matter in both control and C45. In summary, C45 improved the feeding value and fermentation quality of whole-crop corn silage at the expense of forage productivity.