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- 저자 : Han Sang-Kug (검색결과 83 건)
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Han, Hyun Soo,Kim, Ju Seong,Kim, Dong Hoe,Han, Gil Sang,Jung, Hyun Suk,Noh, Jun Hong,Hong, Kug Sun RSC Pub 2013 Nanoscale Vol.5 No.8
<P>We demonstrated a highly efficient conducting indium tin oxide (ITO) core-TiO2 nanocrystals shell nanowire array for a photoelectrode in dye-sensitized solar cells with regard to light harvest and charge collection. The TiO2 shell layer, consisting of anatase nanocrystals of ~2 nm, were successfully formed on a single crystalline ITO nanowire prepared via a vapor transport method using repetitive TiCl4 aqueous solution treatments at 50 C. We found that the nanocrystal size and number of Cl(-) ions remaining on the formed shell layer critically influence the dye loading properties. Moreover, these factors can be controlled by means of a post-annealing process. We also found that the dye loading and the back electron transport from the conductive ITO nanowire to the electrolyte mainly determine the final cell performance. The proposed double-shell layer structure consisting of dense and porous layers showed significantly improved cell performance.</P>
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Thalidomide for Treating Metastatic Hepatocellular Carcinoma: A Pilot Study
( Sang Hoon Han ),( Se Hoon Park ),( Jung Ho Kim ),( Jong Jun Lee ),( So Young Kwon ),( Oh Sang Kwon ),( Sun Suk Kim ),( Ju Hyun Kim ),( Keon Kug Kim ),( Yeon Ho Park ),( Jeong Nam Lee ),( Eun Mi Nam 대한내과학회 2006 The Korean Journal of Internal Medicine Vol.21 No.4
Background: Thalidomide has been reported to have antitumor activity for treating metastatic hepatocellular carcinoma (HCC). We evaluated the safety and efficacy of using thalidomide for treating selected patients with unresectable or metastatic HCC, and their disease was refractory to systemic chemotherapy. Methods: Eight patients with measurable and metastatic HCC that had progressed with prior systemic chemotherapy and who desired further active therapy were enrolled in this study. Thalidomide was given orally at bedtime and it was started at 200 mg/day with no further dose escalation. The response was measured at 2-month intervals. Results: The median age was 44 years (range: 34-52 years) and all the patients had received doxorubicin-based systemic chemotherapy prior to their enrollment. Each patient received thalidomide for a median of 152 days (range: 5-422 days). One partial response was observed (12.5%, 95% CI; 0-42%) along with 4 cases of stable diseases. The most commonly encountered toxicity was somnolence; grade 3 somnolence was noted for one patient, which led to treatment discontinuation. Skin rash was observed in one responding patient. Conclusions: The results indicate that thalidomide may feasibly offer disease stabilization to metastatic HCC patients. Further dose escalation of thalidomide, or its combination with other chemotherapeutic agents, may be of interest and this should be investigated for treating patients with metastatic HCC.
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한성현(Sung-Hyun Han),신행봉(Haeng-Bong Shin),Le Xuan Thu,안종국(Jong-Kug An) 한국생산제조학회 2006 한국생산제조시스템학회 학술발표대회 논문집 Vol.2006 No.5
We propose a new technique to the development of Intelligent control algorithm based-on digital signal processors in order to improve the precision and robustness for system of industrial robot. Intelligent control has emerged as one of the most active and fruitful areas for research in the applications of fuzzy set theory, especially in the real of industrial processes. In this thesis, a self-organizing fuzzy controller for the industrial robot manipulator with a actuator located at the base is studied. A fuzzy logic composed of linguistic conditional statements is employed by defining the relations of input-output variable of the controller, In the synthesis, one of the most difficult problems is the determination of linguistic control rules from the human operators. To overcome this difficult, SOFC is proposed for a hierarchical control structure consisting of basic level and high level that modify control rules. The proposed scheme is simple in structure, fast in computation, and suitable for implementation of real-time control. Performance is illustrated by simulation and experimental results for SCARA robot.
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한성현(Sung-Hyun Han),Le Xuan Thu,김홍래(Hong-Rae Kim),안종국(Jong-Kug An) 한국생산제조학회 2006 한국생산제조시스템학회 학술발표대회 논문집 Vol.2006 No.5
The equipment of industrial robot in manufacturing and assembly lines has rapidly increased. In order to achieve high productivity and flexibility, it becomes very important to develop the visual feedback control system with Off-Line Programming System(OLPS). We can save much efforts and time in adjusting robots to newly defined workcells by using OLPS. A proposed visual calibration scheme is based on position-based visual feedback. The calibration program firstly generates predicted images of objects in an assumed end-effector position. The process to generate predicted images consists of projection to screen-coordinates, visible range test, and construction of simple silhouette figures. Then, camera images acquired are compared with predicted ones for updating position and orientation data. Computation of error is very simple because the scheme is based on perspective projection, which can be also expanded to experimental results. Computation time can be extremely reduced because the proposed method does not require the precise calculation of tree-dimensional object data and image Jacobian.
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한성현(Sung-Hyun Han),Le Xuan Thu,김홍래(Hong-Rae Kim),안종국(Jong-Kug An) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-
The equipment of industrial robot in manufacturing and assembly lines has rapidly increased. In order to achieve high productivity and flexibility, it becomes very important to develop the visual feedback control system with Off-Line Programming System(OLPS). We can save much efforts and time in adjusting robots to newly defined workcells by using OLPS. A proposed visual calibration scheme is based on position-based visual feedback. The calibration program firstly generates predicted images of objects in an assumed end-effector position. The process to generate predicted images consists of projection to screen-coordinates, visible range test, and construction of simple silhouette figures. Then, camera images acquired are compared with predicted ones for updating position and orientation data. Computation of error is very simple because the scheme is based on perspective projection, which can be also expanded to experimental results. Computation time can be extremely reduced because the proposed method does not require the precise calculation of tree-dimensional object data and image Jacobian.
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한성현(Sung-Hyn Han),김윤구(Wn-goo Kim),안종국(Jong-Kug An),조창제(Chang-jae Cho) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-
Developed shape awareness technology and vision technology for slant in this research, and including external form state of lens for the performance verification, developed so that can be good, achieve badness finding. And, establish to existing reflex data because inputting surface badness degree of scratch's standard specification condition directly, and error designed to distinguish from product more than schedule error to badness product by normalcy product within schedule extent after calculate the error comparing actuality measurement reflex data and standard reflex data mutually. Developed system to smallest 1 pixel unit though measuring is possible 1 pixel as 3.7㎛×3.7㎛(0.1369×10?⁴㎟) the accuracy to 10?⁴㎜ minutely measuring is possible performance verification and trust ability through an experiment prove.
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한성현(Sung-Hyun Han),신행봉(Haeng-Bong Shin),Le Xuan Thu,안종국(Jong-Kug An) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-
We propose a new technique to the development of Intelligent control algorithm based-on digital signal processors in order to improve the precision and robustness for system of industrial robot. Intelligent control has emerged as one of the most active and fruitful areas for research in the applications of fuzzy set theory, especially in the real of industrial processes. In this thesis, a self-organizing fuzzy controller for the industrial robot manipulator with a actuator located at the base is studied. A fuzzy logic composed of linguistic conditional statements is employed by defining the relations of input-output variable of the controller, In the synthesis, one of the most difficult problems is the determination of linguistic control rules from the human operators. To overcome this difficult, SOFC is proposed for a hierarchical control structure consisting of basic level and high level that modify control rules. The proposed scheme is simple in structure, fast in computation, and suitable for implementation of real-time control. Performance is illustrated by simulation and experimental results for SCARA robot.
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