• Journal of the Society of Cosmetic Scientists of Korea
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• v.32 no.4 s.59
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• pp.233-239
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• 2006

This study was carried out for the evaluation of the effects of emulsion containing the specific antibodies against S. aureus that secreted staphylococcal toxins in atopy dermatitis (AD). The emulsion was formulated to have basic moisturizing effect and the function to inhibit S. aureus colonization and Staphylococcal toxins. The results were as follows; 1. In 19 subjects, 14 subjects (73.7%) showed improvement in SCORAD the mean SCORAD score was improved by 21.87% at week 4 compared to pre-application (p < 0.05). 2. In 17 subjects with severe lesions, 14 subjects(82.35%) showed improvement in SCORAD; the mean SCORAD score was improved by 25.11% at week 4 compared to pre-application (p < 0.05). 3. In 19 subjects, 15 subjects (79%) showed improvement in TEWL; the mean TEWL was improved by 24.32% at week 4 compared to pre-application (p < 0.05). 4. In 17 subjects with severe lesions, 14 subjects (82.35%) showed improvement in TEWL; the mean TEWL was improved by 25.47% at week 4 compared to pre-application (p < 0.05). 5. In 19 subjects, 15 subjects (79%) showed improvement in keratin capacitance; the mean keratin capacitance was improved by 25.01% at week 4 compared to pre-application (P < 0.05). 6. In 17 subjects with severe lesions, 13 subjects (76.47%) showed improvement in keratin capacitance; the mean keratin capacitance was improved by 20.82% at week 4 compared to pre-application (p < 0.05). Based on above-described results, emulsion containing the specific antibodies against S. aureus that secreted staphylococcal toxins is considered to be helpful in the improvement of atopic dermatitis.

• 한국태양에너지학회:학술대회논문집
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• 2012.03a
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• pp.102-107
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• 2012

The purpose of thesis is to improve output of solar cell module by enhancing transmission efficiency. To improve transmission efficiency, transmission interconnection ribbon which is used to connect solar cells and busbar which contacts with it has been improved. To secure reliability, comparison research on output of solar cell modules has been conducted by manufacturing PCB module formed by laminated metal with the same output. The result of this research is based on a output efficiency test of modules by comparing electric conductivity of soldering busbar and laminated PCV type of busbar.

• The Journal of the Korea institute of electronic communication sciences
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• v.11 no.2
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• pp.179-184
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• 2016

The electrical load testing system developed from this study was designed to control rated-capacity-testing or variable-load-testing in an active and precise manner and save electric energy during testing, and also to convert the saved electric energy through the electrical load testing system to grid line. As for the device under testing, it was designed to be applied to not only transformer, rectifier, voltage regulator, inverter which require grid voltage source but, also applied to electric power, aerogenerator, photovoltaic, hybrid generator, battery, etc. which do not require grid voltage source. The system was designed to return the power consumed during the testing to the grid line by connecting the synchronizing pwm inverter circuit to the grid voltage source, and was also made to enable the being-tested system from disuse of approximately 93.4% energy when compared to the conventional load testing system which has used the passive resistor.

• Archives of design research
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• v.18 no.3 s.61
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• pp.191-198
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• 2005

Menu is the most common interaction tool to select and execute a specific menu item from multiple menu options. With the very rapid increasing amount of information, various new menu designs have been developed. In this research, the pull-down menu, fisheye menu and grid menu were tested to compare the performance time, error rate, simplicity, usefulness, user friendliness, and overall user preference of each menu type. The grid menu was more efficient in selection speed than the pull-down and fisheye menus when the number of menu-items was 50 and 100. The time needed to choose a menu-item with a grid menu was less affected by the size of menu. The pull-down and the grid menus were considered to be more satisfactory, simple, user friendly, and useful than the fisheye menu. 42.3 percent of subjects indicated that the grid menu was their preferred selection tool among the menus. The grid menu is an efficient and robust alternative menu choice for small and middle size menu list. Further study is required to examine the possibility of grid menu on mobile devices.

• Journal of the Korean Society for Precision Engineering
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• v.25 no.12
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• pp.47-54
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• 2008

Hard turning process can be defined as a single-point machining process carried out on "hard" materials. The process is intended to replace or limit traditional grinding operations that are expensive, environmentally unfriendly, and inflexible. The purpose of this study is to achieve a systematic understanding of machining characteristics and the effects of machining parameters on cutting force, tool wear shape and chip formation by the outer cutting of a kind of wear resistant tungsten carbide V30. Hard turning experiments were carried out on this alloy using the PCD (Poly Crystalline Diamond), cBN (cubic Boron Nitride) and PcBN (Polycrystalline cubic Boron Nitride) cutting tools. The PcBN and the usual cBN tools were used to be compare with the PCD tool and the dry turning was carried out. The PcBN is attractive as the tool material which replaces the PCD. The tool wear width and cutting force were measured, and the worn tool and chip were observed. The difference of the tool wear mechanism among the three tool materials was investigated.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.1
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• pp.308-316
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• 2015

The purpose of this study is to verify TOM(turn-of-the-month) effect in the Kosdaq market, and that to compare to TOM effect of KOSPI for supporting degree of identification and to find new features. For this study, as the study basis sample, we used the daily data of the KOSDAQ from January 1996 to December 2013 and verified the TOM effect through yearly, monthly, classification by event as financial crisis, different period of TOM in order to clarify the effect of the KOSPI and KOSDAQ. As a result, We find that the TOM effect in KOSDAQ is always present uniformly in yearly, monthly, event-specific, which unlike TOM period also in KOSPI and generally TOM effect in KOSDAQ market which has larger volatility was appeared more pronouncedly than KOSPI market, and particularly TOM effect of KOSDAQ was larger than that of KOSPI on financial crisis occasion. But TOM effect of KOSDAQ was less stable than KOSPI.

• Journal of Convergence for Information Technology
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• v.10 no.2
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• pp.201-210
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• 2020

This study aims to identify existing legal limitations on tattooing for beauty purposes and to suggest legalization of tattooing for beautician and necessity of institutionalization for the professional qualification system. The results of depth interviews from 10 experts in the field of beauty and law and survey from 101 respondents who experienced with tattooing are as follows. First, 10 experts pointed out that the law does not reflect reality considering the fact that a number of procedures are made illegal, and suggested opinions of the introduction of the professional qualification system. Second, only 15.7 percent of procedures had been conducted by a doctor, and non-medical practitioners showed higher quality of procedure, satisfaction, and recommendation. Side effects do not differ between groups, and 73.7% of the respondents answered that the qualification system is necessary. This study empirically supports the need for improvement in government policies that reflect social awareness of tattooing for beauty purposes.

• Journal of the Korean Magnetics Society
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• v.14 no.1
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• pp.1-6
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• 2004

To construct the non-contact temperature detection systems, LC resonance type sensors composed of temperature sensitive ferrite inductors and capacitors were used, and their wireless temperature detection performances were investigated. The temperature was wirelessly detectable using the fabricated LC resonance sensors with a transmitter and receiver, because their inductances and resonance frequencies were changed according to the temperature dependance of permeability of the ferrites. The sensitivity of the system was decreased with the distance i between transmitter and receiver as a ratio of the l$^6$.

• Journal of Korean Society of Environmental Engineers
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• v.31 no.3
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• pp.208-216
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• 2009

This study was performed to investigate levels of POPs in soil by land use and identify congener profiles of PCBs, PCDD/Fs in soil in Korea. Heptachlor, Aldrin, Endrin, Mirex, Toxaphene were not found in all areas. The concentrations of Diedrin, Chlordane, ${\Sigma}$DDT, HCB in soil samples were in ranged from N.D. to 12.08 ${\mu}g$/kg, from N.D. to 16.08 ${\mu}g$/kg, from N.D. to 38.19 ${\mu}g$/kg and from N.D. to 1.32 ${\mu}g$/kg. In case of PCBs, concentration were in ranged from N.D. to 172.12 ${\mu}g$/kg, and PCBs contaminated area was higher than other areas. The concentrations of PCDD/Fs were in ranged from 0 to 6.68 pg I-TEQ/g. In addition, the ${\Sigma}$PCDFs concentration in the industry area soil was higher than ${\Sigma}$PCDDs.

• Proceedings of the KIEE Conference
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• 2005.07a
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• pp.635-637
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• 2005

차단기 합성시험은 직접시험과의 등가성을 유지하는 것이 가장 중요한데, 합성시험에서의 전류일 전압은 직접시험에 비해 매우 낮기 때문에 보조차단기 및 피시험 차단기의 아크전압에 의해 마지막 전류루프가 심하게 왜곡될 수 있다. 특히, 비대칭전류차단시험(T100a)에서는 마지막 전류루프의 특성이 차단기 성능평가에 매우 중요한데, 아크전압에 의한 마지막 전류루프의 왜곡이 심하면 합성시험의 등가성이 결여되어 적절치 못한 시험결과를 초래할 수 있다. 따라서 본 논문에서는 아크전압을 고려한 비대칭전류차단 합성시험 특성을 해석함으로써, 적절한 방법에 의해 아크전압에 의한 왜곡을 보상하여 합성시험의 등가성을 유지할 수 있는 기반을 마련하였다.