• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 제36회 하계학술대회 논문집 D
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• pp.2738-2740
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• 2005

From composition transmitter is detached in indicator to individual load direction of 4 channels and adding up display by load cell indicator indication method of Bluetooth way is identifying marks.

• KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
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• 제5B권4호
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• pp.399-404
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• 2005

In this paper, a hybrid photovoltaic fuel-cell generation system employing an electrolyzer for hydrogen generation and battery for storage purpose is designed and simulated. The system is applicable for remote areas or isolated DC loads. Control strategy has been considered to achieve permanent power supply to the load via the photovoltaic/battery or the fuel cell based on the power available from the sun. MATLAB and SIMULINK have been used for the simulation work. A sensitivity analysis is conducted for various load level based on availability of solar radiation.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.253-253
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• 2000

Each robot plays a role of its own behavior in dynamic robot-soccer environment. One of the most necessary conditions to win a game is control of robot movement. In this paper we suggest a win strategy using Cellular Neural Network to set optimal path and cooperative behavior, which divides a soccer ground into grid-cell based ground and has robots move a next grid-cell along the optimal path to approach the moving target.

• Clinical and Experimental Reproductive Medicine
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• 제21권1호
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• pp.63-68
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• 1994

To confirm the overcome of in vitro 2-cell block, ICR mouse I-cell embryos were cultured in CZB media. All embryos in CZB were overcome in vitro 2-cell block and 92% of embryos were developed to the blastocyst at day 4. However, in m-KRB group(control) only 20% of embryos were developed over 2-cell. Any embryos in m-KRB did not develop to the morular stage. Developments and degenerations of ICR mouse I-cell embryos were compared in CZB medium prepared with water of three quality:(l) Milli-Q ultrafiltration water(UF);(2) Milli-Q reverse osmosis water(RO);(3) tap water(TAP). The objective was to evaluate the potential of quality control using ICR mouse 1-cell embryos. The more water was purified, the better embryo developments were supported and the less embryos were degenerated. As a quality control system, the culture of ICR 1-cell mouse embryos in CZB was useful.

• 한국생산제조학회지
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• 제22권5호
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• pp.824-830
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• 2013

In ultra-precision machining, the inside temperature should be controlled precisely. The important factors are environmental conditions (outside temperature, humidity) and temperature conditions (cutting heat, spindle heat). Thus, in this study, an environmental control cell for the ultra-precision machine that could control the inside temperature and minimize effects of the surrounding environment to achieve a thermal deformation of less than 400nm of a specimen was designed and verified through C.F.D. Further, a method that could control the temperature precisely by using a blower, heat exchanger and heater was evaluated. As a result, this study established a C.F.D technic for the environmental control cell, and the specimen temperature was controlled to be within $17.465{\pm}0.055^{\circ}C$.

• Journal of information and communication convergence engineering
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• 제4권4호
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• pp.170-173
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• 2006

Recently, with increasing efficiency of DSC (photo-electrochemical using a nano-particle), The Performance of DSC solar generation system also needs improvement. The approach consists of a Fly-back DC-DC (transfer ratio 1:10) converter to boost the DSC cell voltage to 300VDC. The four switch (MOSFET) inverter is employed to produce 220V, 60Hz AC outputs. High performance, easy manufacturability, lower component count., safety and cost are addressed. Protection and diagnostic features form an important part of the design. Another highlight of the proposed design is the control strategy, which allows the inverter to adapt to the: requirements of the load as well as the power source. A unique aspect of the design is the use of the DSP TMS320LF2406 to control the inverter by current and voltage feed-back. Efficient and smooth control of the: power drawn from the DSC Cell is achieved by controlling the front end DC-DC converter in current mode.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2005년도 춘계학술대회
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• pp.273-276
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• 2005

Performance analysis of a solid oxide fuel cell/micro gas turbine hybrid system is conducted at design-point and part-load conditions and its results are discussed in this study. With detailed considerations of the heat and mass transfer phenomena along various flow streams of the SOFC, the analysis based on a quasi-2D model reasonably predicts its performance at the design-point operating conditions. In case of part-load operations, performance of the hybrid system to three different operation modes(fuel only control, speed control, and VIGV control) is compared. It is found that the simultaneous control of both supplied fuel and air to the system with a variable MGT rotational speed mode is the optimum choice for the high performance operation. And then, the dynamic characteristics of a solid oxide fuel cell are briefly introduced.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2000년도 춘계학술대회논문집 - 한국공작기계학회
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• pp.182-187
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• 2000

In this paper, we have proposed a new approach to the design of robot vision system to develop the technology for the automatic test and assembling of precision mechanical and electronic parts for the factory automation. In order to perform real time implementation of the automatic assembling tasks in the complex processes, we have developed an intelligent control algorithm based-on neural networks control theory to enhance the precise motion control. Implementing of the automatic test tasks has been performed by the real-time vision algorithm based-on TMS320C31 DSPs. It distinguishes correctly the difference between the acceptable and unacceptable defective item through pattern recognition of parts by the developed vision algorithm. Finally, the performance of proposed robot vision system has been illustrated by experiment for the similar model of fifth cell among the twelve cell for similar model of fifth cell among the twelve cell for automatic test and assemblig in S company.

• 대한한의학회지
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• 제23권4호
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• pp.169-185
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• 2002

Objectives: This study was carried out to investigate 1he effects of Sasammaickmoondong-tang(SME) on colonic mucosal lesions induced by indomethacin in mouse. Methods: The normal group is 1hat no inflammation elicitated mouse. Control group is that gastro-inflammation elicitated mouse. Sample group is that SME administered mouse after gastro-inflammation elicitation. Results: In the common morphology and histochemical change, control group was observed various injury-mucous surface cell, micro-villi, paneth cell, surface epithelial cell, goblet cell-by hemorrhagic erosion, while sample group was as same as normal group. In the immunohistochemical change, 1he distributions of COX-1, Bcl-2, and BrdU treated with SME noticeably increased than control group(P<0.05). The distributions of TUNEL, $NF-{\kappa}B$, COX-2, $IL-2R-\alpha$, NK-1.1, ICAM-1, and CD11b/18 treated with SME noticeably decreased than control group(P<0.05). And the distribution of SBA was as same as normal group. Conclusions: According to the above results, it is supposed that Sasammaickmoondong-tang is applicable to colonic mucosal lesions.

• 대한한의학회지
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• 제24권2호
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• pp.121-137
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• 2003

Objectives: This study was carried out to investigate the effects of Sasammaickmoondong-tang (SME) on gastric mucosal lesions induced by indomethacin in mice. Methods: The normal group was no inflammation-induced mice. The control group was gastro-inflammation-induced mice. The sample group was mice administered SME after gastro-inflammation elicitation. Results: In the common morphology and histochemical change, the control group was observed with various injury-mucous surface cell, micro-villi, paneth cell, surface epithelial cell, goblet cell - by hemorrhagic erosion, while the sample group was as same as the normal group. In the immunohistochemical change, the distributions of COX-1, Bcl-2, and BrdU treated with SME were noticeably higher than in the control group (p<0.05). The distributions of TUNEL, NF-B, COX-2, IL-2R-, NK-1.1, ICAM-1, and CD11b/18 in those treated with SME were noticeably lower than in the control group (p<0.05). Finally, the distribution of SBA was the same as in the normal group. Conclusions: According to the above results, it is supposed that Sasammaickmoondong-tang is applicable to gastric mucosal lesions.