• Proceedings of the KSRS Conference
• /
• 1999.11a
• /
• pp.19-24
• /
• 1999

This paper addresses a new project being carried out at Satellite Technology Research Center. The purpose of the project is to implement a system which receives, processes and stores 1m resolution satellite image transmitted at over 300Mbps down link data rates. In order to develop such a system, a system operational concept design and a requirements study were being carried out As a result of the operational concept design, system objectives, system context and system functions were defined. The system shall be operated according to the philosophy of maximum automation. rapid processing, reliability, integrity, cost effectiveness, and expandability. The system is divided into twelve independent processes and its behavior is modeled by operational scenario, which are combinations of independent processes. Process information and logs generated by the system shall be stored in databases and data received and generated be automatically archived and managed in a hierarchical storage device. The system shall have redundant components in order to be ready for recovering from sudden system failures. This paper will describe in detail the system operational concept design and the system requirements derived from the operational concept design.

• Journal of Institute of Control, Robotics and Systems
• /
• v.16 no.3
• /
• pp.293-299
• /
• 2010

The multiple block localization method in a wide area for multiple robots using iGS is proposed in this paper. The iGS is developed for the indoor global localization using ultrasonic and RF sensors. To measure the distance between a mobile robot and a beacon, the tag on the mobile robot wakes up one beacon to send out the ultrasonic signal and measures the traveling time from the beacon to the mobile robot. As the number of robots is increased, the sampling time of localization also becomes longer. Note that only one robot can localize its own position calling beacons one by one during each of the sampling interval. This is a severe constraint for the localization of multiple robots in a wide area. This paper proposes an efficient localization algorithm for the multiple robots in a wide area which can be divided into multiple blocks. For a given block, a master beacon is designated to synchronize robots. By the access of the synchronization signal, each beacon in the selected group sends out an ultrasonic signal. When the robots in the block receive the ultrasonic signal, they can calculate their own locations based on the distances to the beacons, which are obtained by the multiplication of flight time and velocity of the ultrasonic signal. The efficiency of the algorithm is verified through the real experiments.

• Proceedings of the KSME Conference
• /
• 2007.05b
• /
• pp.2279-2284
• /
• 2007

This study is intended to analyze the effect of thin ink-film thickness around rotating printing roll on the printing quality in the gravure printing process which is used for making electronics circuit like a RFID tag with a conductive ink. The present work numerically estimates the film thickness around rotating roller partially immersed in ink, for which the volume of fluid (VOF) method was adopted to figure out the film formation process around rotating roller. Parameter studies were performed to compare the effect of ink viscosity, surface tension, roller rotating speed, immersed angle on the film thickness. The result indicates that the film thickness has a strong dependency on the fluid viscosity, while the surface tension has negligible effect.

• Proceedings of the Korea Contents Association Conference
• /
• 2006.11a
• /
• pp.543-546
• /
• 2006

In this paper, we introduce a method to effectively highlight retrieval results without impairing meaningful features after historical documents were digitized into XML format. Especially, making the best of the features of historical documents, we perform string matching for the highlighting. Also, considering the features of the XML document, we carry out various processes when highlighting tag is inserted.

• Journal of the Korean Society of Tobacco Science
• /
• v.13 no.2
• /
• pp.34-41
• /
• 1991

To explore the possibility of introducing Zea mays transposable element Ac(activator) which can be used as a mutagen and gene tag in tobacco plants other than maitre, we tried to introduce a cloned Ac element into tobacco cells by an Agrobacterium tumefaciens binary vector system. Transformation of N. babacum cv. Burley 21 tissues and regeneration to whole plant were carried out. The frequency of the transformed callus induced in shoot induction media was higher than that of transformed callus induced in callus induction media. However, the calli were not grown in the second selection media, and became yellow senescent calli. Regenerated tobacco plantlets with foreign gene were also obtained in shoot induction media containing 100 $\mu\textrm{g}$/ml kanamycin and 100$\mu\textrm{g}$/ml carbenicillin. The leaf tissues of transformant was also resistant to 1000 $\mu\textrm{g}$/ml kanamycin. The chromosomal DNAs of transformant and normal plant of N. tabacum were digested by EcoR I and Hind III but not by Pst I.

• Journal of the Korean Society of Industry Convergence
• /
• v.11 no.2
• /
• pp.93-98
• /
• 2008

Steel fibre reinforced concrete (SFRC) were considered a new technology for the construction industry. However today this technology has found wider acceptance among the construction industry. Currently, steel fibres are used in varied segments in many application areas across different segments in the construction industry, especially in tunneling, airports, warehouses, etc. Time and safety are the main factors are among the various advantages which renders steel fibres superior to the competing product. For fibers reinforcing, The maximum load carrying capacity is controlled by fibers pulling out of the composite because fiber reinforcing does not have a deformed surface like larger steel reinforcing bars. The study demonstrated that above concept is applicable and effective in concrete structure by analytical study. The analytical result appears that SFRP have the potential to significantly increase the strength of existing concrete structures, while at the same time dramatically improving their fracture energy characteristics.

• Microbiology and Biotechnology Letters
• /
• v.23 no.6
• /
• pp.784-788
• /
• 1995

The lambda Integrase (Int) carries out site-specific recombination between the two partner DNA sequences, attachment P (attP) and attachment B (attB). In order to study the recombination mechanism, a large quantity of pure integrase is required. Then, we constructed an int gene inserted recombinant plasmid (pNYL3) by using the pQE31 HIS-Tag vector, and produced the fusion protein, 6xHIS-Int from the E. coli TG1 strain carrying the pNYL3 plasmid. The recombinant protein produced was purified by phosphocellulose and Ni$^{++}$-NTA affinity column chromatographies. The result of the in vitro recombination assay using the standard reaction mixture containing 6xHIS-Int and partially purified integration host factor (IHF) showed that the 6xHIS-Int tagged recombination Integrase had the full recombination activity.

• Proceedings of the Korean Society of Marine Engineers Conference
• /
• 2005.11a
• /
• pp.256-257
• /
• 2005

This paper has been carried out to investigate heat transfer characteristics of loop type capillary heat pipe using R141b as a working fluid. In an experiment heat load are changed from 50W to 250W and the temperature of cooling water is fixed to 20$^{circ}C$ . The heat pipe is composed of 10 turns and outer diameter of heat pipe is 3.2mm. The results show that heat transport rate of this type heat pipe using R141b as a working fluid is good.

• Journal of Haehwa Medicine
• /
• v.11 no.1
• /
• pp.163-177
• /
• 2002

This study has been carried out to investigate the cause and etiology of vertigo by referring to 47 literatures. The results were as follows ; 1. Vertigo is classified in Oriental Medicine into Exess Symptom-Complex(實證) and Deficiency Symptom-Complex(虛證). Exess Symptom-Complex(實證) is caused by flare-up the fire of the liver(肝陽上亢), phlegm-heat(痰火) and exogenous pathogenic factors(外邪). Deficiency Symptom-Complex(虛證) is caused by insufficiency of the yin of the kidney(腎陰不足) and deficiency of qi and blood(氣血虛). 2. The principles of vertigo treatments are pyongganjamyang(平肝潛陽), sohwasigpung(消火息風), boiggihyul(補益氣血), geonunbiui(建運脾胃), boigsinjeong(補益腎精), chungyangnoisu(充養腦髓), joseubgeodam(燥濕祛痰), geonblhwaui(建脾和胃). 3. Various Needling Treatment Methods of vertigo in the recent Oriental Medicine are presented such as Filiform Needle(鍼刺療法), Auricular Acupuncture Therapy(耳鍼療法), Scalp Acupuncture Therapy(頭鍼療法), Cataneous Needle Therapy(皮膚鍼療法), Aqua Acupuncture Therapy(水鍼療法), etc.

• Textile Coloration and Finishing
• /
• v.25 no.4
• /
• pp.287-291
• /
• 2013

Nowadays, terms such as 'Smart Textile', 'Intelligent Textile' and 'Wearable Computing' are commonly used in everyday contexts. And radio-frequency identification (RFID) is the use of a wireless non-contact system that uses radio-frequency electromagnetic fields to transfer data from a tag attached to an object, for the purposes of automatic identification and tracking. These products are required technologies which are textile treatments, printing, ink, etc. Durability of textile substrates is an essential marker for conductive ink printing process. Especially, heat stability is important, since conductive ink should be processable (annealing, curing) at temperatures below $150^{\circ}C$. This study was application of RFID on textiles. The textile pre-treatment processes should be carried out to use RFID antenna on textiles.