• The Korean Journal of Community Living Science
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• v.18 no.2
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• pp.241-246
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• 2007

This study was conducted to select and screen for an antifungal bacterial strain showing pathogen inhibitory activity against Diaporthe actinidiae, which causes stem-end rot in kiwi fruit. Four bacterial strains were isolated which strongly inhibit Diaporthe actinidiae from among two hundred and fifty bacterial strains screened from the soil where kiwi fruit were grown. By co-culturing bacterial strain #72 and the pathogen causing the stem-end rot of kiwi fruit, bacterial strain #72 showed 81.0% antifungal activity against Diaporthe actinidiae. Bacterial strain #72 was identified to be from the genus Bacillus sp. based on morphological and biochemical characterization. The bacterialization of culture broth for Bacillus sp. #72 which was sterilized at $121^{\circ}C$ for 15 minutes and than purified by $0.45{\mu}m$ membrane filter showed almost all of the antagonistic activity against Diaporthe actinidiae. We have also confirmed that in vitro treatment of Bacillus sp. #72 cultured in SD+B+P(sugar 5%, soy sauce 3%, beef extract 0.2%, peptone 0.2%) medium efficiently inhibited the growth of Diaporthe actinidiae responsible for stem-end rot in kiwi fruit.

• Journal of architectural history
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• v.19 no.2
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• pp.7-20
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• 2010

Keunsemal, Sinhang-ri, Dunpo-myeon Asan-si,Chungcheongnam-do is where the former President of Korea, Yun, Bosun was born. The houses of Yun, Il-Sun, Yun, Je-Hyung, Yun, Seung-Gu, and where the former President Yun was born are designated as cultural assets by the Korean government. The three houses of the Yuns are located in the center of the village and the size is much different from regular houses since they were created as large scale house of nobilities during the Chosun Dynasty. Along with the three Yun houses and other houses in the village show a great history and tradition of the history and modern times. Unlike other traditional village arrangement, this village was created during the end of Chosun Dynasty and extended into the modern times. From the village, you can see the changes in architecture within the 200 years from traditional Korean-style houses to modern houses. This investigation is a research / analysis of the architectural characteristics of Keunsemal, Sinhang-ri, Asan-si. People can observe changes in the different types of architectural forms of houses based on the history of Korea and time periods. Within the village, there are large scale house of nobilities which were built during the late Chosun Dynasty, common people's houses, farmhouses which were built during the modern times, common people's houses during the industrialization period, and modern houses with backyards. The village of Keunsemal, Sinhang-ri, Asan-si is a very special cultural asset for Korea because the houses in the village show a clear architectural process of change in styles of houses for Korean history.

• Journal of Korean Medical classics
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• v.26 no.4
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• pp.291-304
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• 2013

Objective : Jangjinyopyeon(藏珍要編, JJYP) was published in 1894. The purpose of the research is to know the character of JJYP, and to know JJYP inherited the tradition of Chosun(朝鮮) acupuncture which put emphasis on diagnosis and cure of Jangbu(臟腑) through meridian system. Method : First, identify the bibliographic information of the Mimeograph version of Original JJYP. After then, count and classify the provision by selected acupoints. Analyzed the result in succession. Conclusion : From the research of the mimeograph version of Original JJYP, come to following conclusion. 1. The pen name of author is Songgye(松溪), which means the region of his origin. 2. JJYP used 49 acupoints in total. It covers all regular meridian system except the regular Meridian of Hand Soeum[手少陰心經] for heart organ would never be injured in Neijing(內經) 3. JJYP suggested Eight Confluent points[八脈交會穴] as major acupoints in the end of book. But actually they were selected as the acupoints of belonging Jangbu(臟腑) and various symtoms. 4. Oegwan(外關) and Sameumgyo(三陰交) were maximum frequency in selecting of all acupoints, which means JJYP value controling and covering whole body. 5. Generally, Reinforcing and reducing manipulations concentrated one way, but Hugye(後谿) used each manipulation equally, which means JJYP regards tonification or purgation highly in Hugye(後谿). 6. Most acupoints of high frequency were Nak-point[絡穴], Won-point[原穴], Hap-point[合穴], which supposed to be directly connected to Jangbu(臟腑). So, we can see JJYP continue the tradition of Chosun acupuncture which put emphasis on Jang image[藏象] of meridian.

• The Journal of the Korea institute of electronic communication sciences
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• v.2 no.1
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• pp.19-24
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• 2007

Abstract. In the ubiquitous environment of the next generation, RFID is predicted to occupy an important technical location and also expected to apply to various fields. However, the properties of tags in itself which is the core of RFID have a dysfunction like an invasion of privacy for user. An existing cryptanalytic protection scheme of the information leakage have a difficult problem to apply to RFID tags for privacy protection. We applied Ohkubo et al.'s scheme to the protection of the tag's information efficiently in the RFID system environment using low-cost tags. But, this method has all informations of tagsto identify tag's ID and then performs the process of identification in sequence in the Back-end server. These processes have lots of computations so that it have problems about a scalability. In this paper, we are based on Ohkubo et al.'s scheme to solve problems, and then analyze the parallelism with the Hellman's tradeoff method, divide it into nodesin parallel. In this paper, we are based on Okubo et al.'s scheme to solve problems, and then analyze the parallelism with Hellman's tradeoff method, divide it into the ${\omega}$ node in parallel. as a result, we can reduce the computing complexity of key search to $O(\frac{m^{2/3}n^{2/3}}{\omega})$ seconds from O(mm) seconds. finally we show the results to be enhanced the scalability.

• Journal of architectural history
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• v.10 no.4 s.28
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• pp.7-21
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• 2001

This study is to analyze site layout traditional government office building focused on Chonui-hyon(全義縣) in Chungchong province with Chungchong-do regional maps(忠淸道地方地圖) and Eupjis(邑誌, topography) being compiled in the late Chosun dynasty. The conclusion of analysis can be summarized as follows; 1. Chonui-hyon(全義縣) in Chosun dynasty is gone with a planning principle of the capital city(Han-Seong, 漢城) with disposing Sa-Ji-Dan(社稷壇) and Gaek-Sa(客舍), which are placed to the left and right of Eupchi(邑治), and it is followed in the wake of the spatial structure of Chosun dynasty palace with disposing Dong-Heon(東軒) in front, Nae-A(內衙) at the back of it, or from side to side, also by the Dong-Heon of the center, with organizing each facility around it. 2. Dong-Heon and Gaek-Sa of Chonui-hyon is passed through three step gate, Mun-Ru(門樓), Woi-Sammun(外三門), Nae-Sammun(內三門), from Hong-Salmon(紅門), and are shown hierarchy by haying been placed at the end of approach axis. 3. Dong-Heon can be disposed by Feng-Shui(風水) which have influence on the southeast direction with Jin-San(鎭山) and An-Dae(案對), on the other hand, Gaek-Sa can be disposed by symbolic of the authority of a king. 4. Site layout by function of provincial government office is provided into four ferrite, Dong-Heon, Gaek-Sa, Nae-A, practical business territory, and eve territory is organized by official institution on a social position to radiation, by the compositive axis to be made Woi-Sammun Nae-Sammun Dong-Heon Nae-A 5. Approach process of Chnui-hyon government office is three door system similar to Kam-Young(監營) in a different way two door system in most provincial government office, also approach axis is formed by bending.

• Fire Science and Engineering
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• v.30 no.6
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• pp.78-83
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• 2016

The characteristics of flame spread under similar atmospheric conditions to those inside the first stage of launch vehicles were investigated to provide fundamental knowledge to prevent fires and explosions of vehicles during launching operations. To this end, the rate of flame spread on the solid fuel was measured at elevated oxygen concentrations and reduced atmospheric pressures. A 0.18 mm diameter optical fiber was used as a solid fuel. The experimental results indicated that elevated oxygen concentrations can increase the rate of flame spread while increasing the atmospheric pressures to 1 atm can lead to decreases in the rate of flame spread. The increases in the rate of flame spread with pressure is due mainly to reductions in the convective heat loss that are clarified through an analysis of the pressure dependence on the convective heat transfer coefficient.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.1
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• pp.1080-1083
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• 2005

Can speak that DTD is meta data that define meaning of expressed data on XML document. Therefore, in case DTD information is damaged this information to base security of XML document dangerous. Not that attach digital signature on XML document at send-receive process of XML document in this research, proposed method to attach digital signature to DTD. As reading DTD file to end first, do parsing, and store abstracted element or attribute entitys in hash table. Read hash table and achieve message digest if parsing is ended. Compose and create digital signature with individual key after achievement. When sign digital, problem that create entirely other digest cost because do not examine about order that change at message digest process is happened. This solved by method to create DTD's digital signature using DOM that can embody tree structure for standard structure and document.

• Restorative Dentistry and Endodontics
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• v.30 no.4
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• pp.344-351
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• 2005

This study compared the microshear bond strength $({\mu}SBS)$ to end and side of enamel rod bonded by four adhesives including two total etch adhesives and two self-etch adhesives. Crown segments of extracted human molars were cut mesiodistally. The outer buccal or lingual surface was used as specimens cutting the ends of enamel rods, and inner slabs used as specimens cutting the sides of enamel rods. They were assigned to four groups by used adhesives: Group 1 (All-Bond 2), Group 2 (Single Bond), Group 3 (Tyrian SPE/One-Step Plus), Group 4 (Adper Prompt L-Pop). After each adhesive was applied to enamel surface, three composite cylinders were adhered to it of each specimen using Tygon tube. After storage in distilled water for 24 hours, the bonded specimens were subjected to ${\mu}SBS$ testing with a crosshead speed of 1 mm/minute. The results of this study were as follows: 1. The $({\mu}SBS)$ of Group 2 $(16.50\pm2.31 MPa)$ and Group 4 $(15.83\pm2.33 MPa)$ to the end of enamel prism was significantly higher than that of Group 1 $(11.93\pm2.25 MPa)$ and Group 3 $(11.97\pm2.05 MPa)$ (p<0.05). 2. The $({\mu}SBS)$ of Group 2 $(13.43\pm2.93 MPa)$ to the side of enamel prism was significantly higher than that of Group 1 $(8.64\pm1.53 MPa)$, Group 3 $(9.69\pm1.80 MPa)$, and Group 4 $(10.56 \pm1.75 MPa)$ (p<0.05), 3. The mean $({\mu}SBS)$ to the end of enamel rod was significantly higher than that to the side of enamel rod in all group (p<0.05).

• Transactions on Electrical and Electronic Materials
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• v.2 no.3
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• pp.24-27
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• 2001

The end point of oxide chemical mechanical polishing (CMP) have determined by polishing time calculated from removal rate and target thickness of oxide. This study is about control of oxide removal amounts on the shallow trench isolation (STI) patterned wafers using removal rate and thickness of blanket (non-patterned) wafers. At first, it was investigated the removal properties of PETEOS blanket wafers, and then it was compared with the removal properties and the planarization (step height) as a function of polishing time of the specific STI patterned wafers. We found that there is a relationship between the oxide removal amounts of blanket and patterned wafers. We analyzed this relationship, and the post CMP thickness of patterned wafers could be controlled by removal rate and removal target thickness of blanket wafers. As the result of correlation analysis, we confirmed that there was the strong correlation between patterned and blanket wafer (correlation factor: 0.7109). So, we could confirm the repeatability as applying for STI CMP process from the obtained linear formula. As the result of repeatability test, the differences of calculated polishing time and actual polishing time was about 3.48 seconds. If this time is converted into the thickness, then it is from 104 $\AA$ to 167 $\AA$. It is possible to be ignored because process margin is about 1800 $\AA$.

• Applied Chemistry for Engineering
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• v.25 no.2
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• pp.227-232
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• 2014

Depolymerization of sodium alginate (SA) was carried out by electron beam irradiation in a hydrogen peroxide atmosphere. E-beam with 1.0 and 2.5 MeV of accelerating voltages were employed in this experiment. For control of molecular weight and the radiation yield of scission ($G_s$), the irradiation dosage of e-beam was managed in a range from 2.5 to 20 kGy while the quantity of hydrogen peroxide was adjusted in a range of 0 to 4.5%. The chemical structure of the depolymerized sodium alginate (DSA) was analyzed to have scission of 1,4-glycoside bond mainly and a few fragmentary formate end groups which may be produced by the cleavage between C2 and C3 in repeating unit of alginate. It turned out to have simple chemical structures at the DSA end groups, produced by e-beam irradiation, similar with those in the polymer SA structure. As a result, the molecular weight of SA decreased as the energy and dosage of applied e-beam increased, and the radiation yield of scission showed the best result at 2w/v% in SA concentration. The highest radiation yield of scission ($7.919{\times}10^4mol/J$) was confirmed when an irradiation dosage of 20 kGy (2 MeV) and 1.5% hydrogen peroxide were used in 2% SA aqueous solution.