• Journal of Oral Medicine and Pain
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• v.32 no.2
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• pp.219-225
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• 2007

This investigation was carried out to evaluate the effect of pain control temporomandibular disorders with clinical application of capsaicin cream. 20 healthy subjects without systemic diseases were measured in current perception threshold and pain tolerance threshold with $Neurometer^{(R)}$ CPT/C (Neurotron, Inc. Baltimore, Maryland, USA) after cold pack, 0.025% capsaicin and 0.075% capsaicin cream application. The obtained results were as follows : 1. The current perception threshold of C-fiber was significantly higher to the baseline on. There were significantly increased in C- fiber current perception threshold of 0.025% capsaicin cream and 0.075% capsaicin cream application comparison to cold pack. 2. There was significantly increased in pain tolerance threshold of cold pack and 0.075% capsaicin application comparison to one of baseline as $A{\beta}$-fiber, There was significantly higher after cold pack and 0.025% capsaicin cream application than baseline as $A{\delta}$-fiber. In C-fiber case, 0.025% capsaicin application's was significantly increased than baseline one. 3.There were significantly higher C-fiber of 0.075% capsaicin application than baseline in visual analogue scale marking pain level of pain tolerance threshold.

• Journal of the Korean Geotechnical Society
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• v.29 no.11
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• pp.119-127
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• 2013

Recently, several researches on the development of new economical foundation types have been performed to support floating structures as many offshore structures have been constructed. This study focused on the evaluation of bearing capacity of group suction piles, which are connected by a concrete pile cap. The offshore floating structures are mainly subjected to horizontal loading, so the horizontal bearing capacities of the group suction piles were analyzed by performing 3-dimensional finite element analyses. The group suction piles are expected to behave as a rigid pile due to its shallow embedded depth. Therefore, the detailed soil modeling was necessary to simulate the bearing behavior of soils under low confining pressure. The modulus and the strength of soils were modelled to increase with effective confining pressure in soils. For the parametric study, the center-to-center spacing between piles was varied and two soil types of clay and sands were applied. The analyses results showed that the yielding load of the group pile increased with the increase of the pile spacing and the yielding load of the group piles with 5D spacing was about 3 times larger than that of the single pile with free rotation.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.459-462
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• 2017

This paper, A large hair dryer was developed to shorten the drying time of the user's hair. The mechanism that determines the strength and stability of large hair dryer products is 'motor'. In a typical hair dryer to determine the wind speed using a 5V or 12V DC motor, Outer air vents are also great ways to use a long time, power consumption by a single blow. But, In the case of large hair dryers using multiple blows, the aim is to reduce the power consumption by increasing the intensity of the wind speed in a short time. Looking at the simulation results of a typical hair dryer, It was found that women spent an average of 20 minutes and that large hair dryers took an average of 5 minutes. This paper, In order to shorten the average drying time, it is necessary to determine the efficiency of the motor, the blow position of the outer frame, and the power consumption and studied for product development. As a result of the research and simulation, the power consumption is 0.8 times, the wind speed is 1.5 times, and the drying time is about 5 minutes. Therefore, it was found that the large hair dryer developed in this study can maximize the user 's average drying time and the efficiency of the motor.

• Journal of Bio-Environment Control
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• v.20 no.4
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• pp.297-303
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• 2011

The contents of capsaicinoid, free sugars and organic acids of six varieties of Korean hot pepper, Supermanita, Dokyacheongcheong, Shinseokyeoi, Wangdaebak, Hanbando, and Chungyang, were measured. The sensory evaluations of its extracts were compared in order to investigate the indirect effect or reaction of the composition of taste components on sensory acceptability of Korean hot pepper. The contents of capsaicinoid were considerably from $37.8mg{\cdot}100g^{-1}$ to $164.1mg{\cdot}100g^{-1}$, and the contents of free sugars were from 9.3% to 18.2%, and the contents of organic acids were from 8.1% to 14.7% in Korean hot peppers. Although the pungent sensory evaluation of water extract of pepper powder was completely accordant with instrumental analysis result of capsaicinoid contents, they did not show a significant relationship to the sensory of taste. Multiple regression with capsaicinoid (CAP), total sugars (TS) and total organic acid (TOA) contents increased the correlation coefficient for sensory of taste to r = 0.927 and the coefficient of determination for them to $R^2=0.906$. However, we suggest the more efficient function for it which is composed of two independent variables only. As the result, a regression equation of Y = 0.69 X + 0.11 with $R^2=0.884$ was obtained for quantitative analysis of sensory evaluation of pepper taste by two factors between capsaicinoid and total free sugar.

• Proceedings of the KAIS Fall Conference
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• 2000.10a
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• pp.226-229
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• 2000

일반적으로 안경집은 일회적으로 사용하고 버리는 것이라 생각하는 사람이 많다. 안경집을 주로 생산하고 있는 대동사출금형과의 공동 노력으로 다기능성 안경집을 개발한 것을 소개한다. 일상적인 고정관념을 버리면 편리하고 기능성이 높은 제품을 만들 수 있다는 신념으로 개발한 결과 어린이나 젊은이들이 졸아할 문방구 겸용 안경집을 개발할 수 있었다. 완구는 소비자가 일상적으로 많이 접촉하기 때문에 곰팡이나 세균이 서식하지 않도록 항균 세라믹을 이용하여 항균처리하였다. 또한 상온에서 인체에 이로운 원적외선이 방출될 수 있도록 고안하였다. 단순한 색상의 무료함을 줄이기 위하여 어린이나 젊은이들이 좋아하는 상용화된 캐릭터를 사용하여 제품의 다양화를 꾀하였고, 4개의 조각으로 만들어 어린이들이나 젊은이들이 조립할 수 있도록 하여 흥미를 더할 수 있도록 하였다. 또한 소비자들이 선호하는 색을 알아보기 위하여 기존의 안경집을 활용하여 색상성호도 조사를 실시하였다. 젊은층은 자극적이고 화려한 색깔을 선호하는 한편 기성세대는 무난한 색깔을 선호하였다. 또한 콘택트 렌즈를 착용하는 경우에도 안경을 사용하는 경우가 많다. 이 경우 콘택트 렌즈와 안경을 따로 가지고 다녀야 하는 불편이 있다. 이에 착안하여 안경과 콘택트 렌즈를 겸용으로 사용하는 소비자를 위하여 안경과 콘택트 렌즈를 동시에 담을 수 있는 안경집을 개발(실용신안 출원번호:8928)하였다. 이 고안은 콘택트 렌즈를 안경집에 보관하기 위한 것으로 콘택트렌즈가 식염수에 잠겨 보관된 렌즈캡을 안경집내에 별도로 삽입되는 케이스에 수납하도록 구성하여 안경과 함께 콘택트 렌즈를 보관해 휴대하는 안경집 보관용 콘택트 렌즈 케이스에 관한 것으로 이것의 특징은 뚜껑이 열리고 닫히도록 구성된 안경집에 있어서 뚜껑 안쪽에 거울이 마련되고 뚜껑이 연결되는 선단부 안쪽에 끼움홈과 체결홈이 형성된 체결부를 갖는 안경집과 이것에 결합되는 체결구가 마련되어 개폐되는 커버가 형성된 케이스로 구성된다.로 금형설계 및 제작기간을 단축하고자 한다.ere demonstrated in rats after i.c.v., intraperitoneally and orally administration, respectively. The antiepileptical effects by the combination of compounds from ginseng; were compared with the iuluence of Rg1, Rb1, Rc and with the well known antiepileptical drugs such as carbamazepine, valproic acid. The base for the research is obtained by using the WAG/Rij strain (Luijtelaar, Coenen, Kuznetcova), an excellent genetic model for human generalized absence epilepsy. The improving action of gensinosides was effectively demonstrated on the model of electrical kindling of amygdala of WAG/Rij rats with genetically determined absences, and the influences of ginsenosides on the slow wave discharges have also been being investigated. The different characteristics of a kindling process exerted in the sex-different region of the amygdala and demonstrated that the level of sex steroids and content of neurosteroids in amygdaloid tissue ca

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.1
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• pp.656-664
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• 2020

This study obtained basic data for developing human resources with creativity convergence competency by surveying and analyzing the level of creativity convergence competency of university students. The study was conducted from October 1, 2019 to November 10, 2019 on university students attending the departments of computer science, pharmaceutical engineering, physical therapy and dental hygiene. The data from 296 students was finally used for this study, and IBM SPSS/Win statics 23.0 programs were used to analyze the data. Students who graduated from Seoul/Gyeonggi High School or those students with high undergraduate satisfaction were found to have high creativity convergence ability, and these results were statistically significant. Further, the group of students who had experience with Campus/Suburban competition, Global Competency training/ International exchange programs or the Capstone Design/Team Based Project showed high creativity convergence competency, and these results were statistically significant. Thus, this study identified the necessity of developing and operating various extra-curricular programs at education institutes in order to enhance students' creativity convergence capability.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.7
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• pp.3096-3102
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• 2011

Vanilloid receptor, TRPV1 (transient receptor potential vanilloid 1) is a non-selective cation channel that responds to a variety of pain-eliciting material including capsaicin, pH, heat. Although, membrane trafficking of TRPV1 was not much known so far, TRPV1 was reported to interact with FIP3 (family of Rab11 interacting protein 3). FIP3 was identified as one of Rab11 interacting proteins that is recently reported important in membrane trafficking of several channel proteins directly or indirectly. Therefore, in this study, we examined the role of Rab11 in the membrane trafficking of TRPV1 using cell biological and biochemical techniques. Rab11 was found really colocalized with TRPV1 based on the result of confocal microscopy. However, GST-pulldown assay, one of biochemical technique, found that Rab11 did not interact with TRPV1. Although Rab11 does not interact with TRPV1 directly, we hypothesized that Rab11 is indeed involved in the membrane trafficking of TRPV1. In order to examine further the role of Rab11 in the membrane trafficking of TRPV1, the expression of TRPV1 on the membrane was examined when the expression of Rab11 was decreased down to about 50% by siRNA technique and found decreased significantly. From this result, we can conclude that Rab11 is involved in the membrane trafficking of TRPV1 in a way of including FIP3.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2007.11a
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• pp.230-230
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• 2007

전력선 통신(Power Line Communication)은 최근 전력선을 이용한 통신기술의 발달과 더불어 세계적으로 관심도가 높아지고 연구 개발 및 자본 투자가 활발히 진행되고 있으며, 안정적인 네트워크를 구성하기 위해서는 고주파 전력선 통신 신호를 차단하는 블로킹 필터가 반드시 적용되어야 한다. 전력선 통신용 블로킹 필터는 광대역의 주파수 특성과 높은 신호감쇄 특성 및 대전류 특성이 요구되며, 이러한 특성을 구현하기 위해서는 블로킹 필터의 핵심부품인 자심재료의 고투자율 및 대전류화가 이루어져야 한다. 따라서 본 연구에서는 우수한 전 자기적 특성이 균일하게 유지되고, 전력선에 흐르는 대전류에 의한 자심재료의 포화가 발생하지 않도륵 새로운 자심 재료를 설계하여, 전력선 통신을 적용한 홈 네트워크 구축의 핵심 부품인 광대역 블로킹 필터를 개발하고자 하였다. 2350과 0.3 T의 투자율과 포화자속 밀도를 갖는 EI 형상의 자심재료를 해석모델로 설정하고 다중 에어 갭의 위치에 따른 전류와 자속밀도 변화를 유한요소 해석법으로 분석한 결과 자심재료의 대전류 특성에 지배적인 영향을 미치는 에어 캡의 삽입 위치를 알 수 있었고, 새로운 해석 모델인 I 형상의 로드(ROD) 코어에 대해 수치해석을 수행하여, 100A의 통전 전류에서도 자기적으로 포화되지 않고 인덕턴스의 정밀 제어가 가능하고, 특성의 신뢰성과 대전류에 대한 안정성을 증가시킬 수 있는 인덕터를 설계하였다. 또한 수동소자를 이용한 LC 공진회로를 기본 구성으로 하고, 주파수 대역, 신호 감쇄율과 대전류 특성, 상용화를 고려하여 블로킹 필터 회로를 설계하였으며, 유한요소해석법을 적용한 전자장 모의해석을 통하여 최소의 크기를 갖는 I 형상의 자심재료에 $6{\Phi}$의 에나멜 동선을 6.5턴, 6턴 권선하여 2.5, $2.15\;{\mu}H$의 인덕턴스를 갖는 직렬 인덕터를 구현하였고 블로킹 필터를 구성하였다. 주파수에 따른 신호감쇄 특성을 5 Hz~1 MHz의 주파수 범위에서 측정한 결과 약 490 kHz~450 kHz의 주파수 대역에서 -70dB의 신호감쇄 특성을 나타냈다. 본 연구를 통해 개발된 100A급 광대역 블로킹 필터가 적용되어 상용화 될 수 있을 것으로 판단되며, 또한 모뎀 통신 주파수 대역에서 -70dB 이상의 높은 감쇄 특성을 갖기 때문에 신호차단 특성이 보다 우수할 것으로 사료된다.

• Horticultural Science & Technology
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• v.34 no.3
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• pp.355-362
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• 2016

This study was carried out to investigate the effects of rain-shelter types on growth, and fruit quality of red pepper (Capsicum annuum, 'Kemmaru') cultured in paddy. Applied rain-shelter types were outfield (control), simple rain-shelter plastic house with 2 rows (2R), simple rain-shelter plastic house with 4 rows (4R), and perfect plastic house (House). The plant height was the highest in Houses treatment. There was no difference in leaf length and width among the rain-shelter treatments. The fresh and dry weight of red pepper was high in order of House > 4R > 2R > Control. The ASTA value is irregular tendency among the treatments. Hunter's color value 'a' and 'b' was not different from among the treatments. Phytophthora blight, powdery mildew, bacterial spot were not occurred in all of treatments, and Anthracnose was only occurred in control. Mite, Microcephalothrips abdominalis, and Bemisia tabaci were not occurred in all of treatments, and aphid, Helicoverpa assulta, and virus were occurred all of treatments as same degree. Our results will provide rain-shelter cultivation of red pepper can be increase dry yield and decrease disease and insects.

• Journal of the Korean Institute of Gas
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• v.23 no.4
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• pp.40-45
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• 2019

This paper is a purpose to study the failure example for heavy-duty vehicle fire. The first example, the researcher found the engine over-heating phenomenon causing a coolant leakage by the sealing poor of head-gasket because of D-ring part deformation contacting with cylinder liner top-part and cylinder head. He certified a fire breakout by short transferred to surrounding wiring of air-cleaner. The second example, a brake lining by return fault of break operating S cam causing with much wear of a rear 4 wheel brake lining repeatably was worn by friction. In the long run, it became the cause of fire. The third example, the researcher knew the fire cause was came about the short of wire by overload of tilting motor when the driver tilted up the cap to inspect a engine. Therefore, a heavy-duty fire must minimize the fire occurrence by thorough controlling.