• The Transactions of the Korea Information Processing Society
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• v.4 no.3
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• pp.720-730
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• 1997

In this paper, we develp the code, called the fast parallel Poisson solver, which solves the poisson's equation of arbitraty dimension and parallelize it, And we apply the fast parallel poisson solver to the barotopic predic-tion model to explore the advantages of using it.In particular, we apply this model to the track forecasting of hurricane time required to integrate the barotropic model.A 72-h track prdeiciton was made by using time step of 16 minutes on a network of about 3000 grid points.The prediction 30 seconds on the 8-processor Alliant FX/8 mini supercomputer.It was a speed-up of 3.7 wen compared to the one-processor version.

• Korean Journal of Microbiology
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• v.51 no.4
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• pp.319-328
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• 2015

The $sdu1^+$ gene encodes Sdu1, a PPPDE superfamily member of deubiquitinating enzymes (DUBs) in Schizosaccharomyces pombe. Sdu1 was previously shown to contain an actual ubiquitin C-terminal hydrolase (UCH) activity using the recombinant plasmid pYSTP which harbors the $sdu1^+$ gene. This work was designed to assess a thermotolerant role of Sdu1 against high incubation temperatures. In the temperature-shift experiments, the S. pombe cells harboring pYSTP grew much better after the shifts to $37^{\circ}C$ and $42^{\circ}C$, when compared with the vector control cells. After being shifted to $37^{\circ}C$ and $42^{\circ}C$ for 6 h, the S. pombe cells harboring pYSTP contained lower reactive oxygen species (ROS) levels, compared with the vector control cells. The nitric oxide (NO) levels of the S. pombe cells harboring pYSTP were slightly lower than those of the vector control cells in the absence or presence of the temperature shifting. The total glutathione (GSH) levels of the S. pombe cells harboring pYSTP were significantly higher than those of the vector control cells. Total superoxide dismutase (SOD) and GSH peroxidase activities were also higher in the S. pombe cells harboring pYSTP after the temperature shifts than in the vector control cells. In brief, the S. pombe Sdu1 plays a thermotolerant role against high incubation temperature through the down-regulation of ROS and NO and the up-regulation of total GSH content, total SOD and GSH peroxidase activities.

• Korean Journal of Microbiology
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• v.52 no.4
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• pp.398-405
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• 2016

The Schizosaccharomyces pombe structural gene encoding bacterioferritin comigratory protein (BCP) was previously cloned using the shuttle vector pRS316 to generate the BCP-overexpressing plasmid pBCP10. The present work aimed to evaluate the thermoresistant properties of BCP against high temperature stress using the plasmid pBCP10. When the S. pombe cells were grown to the early exponential phase and shifted from $30^{\circ}C$ to $37^{\circ}C$ or $42^{\circ}C$, the S. pombe cells harboring pBCP10 grew significantly more at both $37^{\circ}C$ and $42^{\circ}C$ than the vector control cells. After 6 h of the shifting to higher incubation temperatures, they contained the lower reactive oxygen species (ROS) and nitrite content, an index of nitric oxide (NO), than the vector control cells. After the temperature shifts, total glutathione (GSH) content and total superoxide dismutase (SOD) activities were much higher in the S. pombe cells harboring pBCP10 than in the corresponding vector control cells. Taken together, the S. pombe BCP plays a thermoresistant role which might be based upon its ability both to down-regulate ROS and NO levels and to up-regulate antioxidant components, such as total GSH and SOD, and subsequently to maintain thermal stability.

• Journal of the Korean Electrochemical Society
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• v.6 no.3
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• pp.169-173
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• 2003

Electrochemical capacitor made with metal oxide electrode uses rapid and reversible protonation/deprotonation of metal oxide material under the aqueous acidic solution, generally. Electrochemical stability window of aqueous electrolyte-type capacitor is narrow compared to that of organic electrolyte-type capacitor. Electrochemical characteristics of electrochemical capacitor made with metal oxide electrode and lithium or ammonium cation based organic electrolyte were evaluated. Electrochemical capacitor based on $RuO_2$ electrode material and 1M $LiPF_6$ in mixed solvents of EC, DEC, and EMC has anodic and cathodic specific capacitance of 145 and $142F/g-RuO_2{\cdot}nH_2O$, respectively, by using cyclic voltammetry with scan rate of 2mV/sec $g-RuO_2$ in potential range of $2.0\~4.2V(Li|Li^+))$.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.12 no.3
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• pp.123-131
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• 2012

As the price of traditional fuels soar, the alternatives are becoming more viable. And manufacturers are promoting the growing viability of electric and biofuel-powered vehicles through longer warranties. Now, these longer green environment (emission)warranties, sometimes called extended warranties or "super warranties," have been adapted. The main result of this paper is to present a new method to approximate a bivariate warranty function by using Radial Basis Function Network with application of Radon Transform and its inverse which is used to reduce the dimension of the warranty space. This method consist of the following stages: First, by using the Radon Transform, the bivariate warranty function can be reduced to one dimensional function. Second, each of the one dimensional functions is approximated by using neural network technique into neural sub-networks. Third, these neural sub-networks are combined together to form the final approximation neural network. Four, by using the inverse of radon transform to this final approximation neural network we get the approximation to the given function. Also, we apply the above method to some green warranty data of automotive vehicle company.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.23 no.1
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• pp.75-132
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• 1997

피부는 항시 산소와 접촉하고 있고 자오선 조사에 크게 노출되어 있다. 따라서, 활성산소종으로 유도된 피부의 광산화적 손상 위험이 실질적으로 증가하고 있다. 활성산소종이란 한 무리로서 수퍼옥사이드 음이온과 히드록실 라디칼과 같은 산소 중심의 라디칼을 포함할 뿐만 아니라, 과산화수소나 싱글렛 옥시전과 같은 몇 종류의 비라디칼종들, 그 외의 다른 것으로, 활성산소종과 생체 성분과의 반응으로 유래된 과산화 라디칼, 알콕실 라디칼, 히드로과산화물 식세포에서 살균작용을 나타내는 HOCl등을 포함한다. 피부에는 복잡한 항산화 방어망이 발달되어 활성산소종에 대항하여 보호작용을 한다. SOD, 카탈라아제, 글루타치온퍼옥시다제 등의 항산화효소와 $\alpha$-토코페롤, 아스코르브산, 카로티노이드 등의 비효소적 항산화 물질들이 피부 항산화 방어망을 구축하고 있다. 그러나 계속된 자외선에의 노출로 생성된 과잉의 활성산소종은 실질직으로 피부의 효소적 그리고 비효소적 항산화 방어를 위태롭게 한다. 따라서 균형은 산화상태 쪽으로 유리하게 기울어진다 결과적으로 산화적 스트레스는 세포 성분들에 대한 손상을 야기시킨다. 지질 과산화, 단백질 산화, 탄력 섬유인 콜라겐과 엘라스틴의 사슬절단 밀 비장성적인 교차결합, 히아루론산 사슬의 절단, 멜라닌 생성반응 촉진, DNA 산화와 같은 생체 구성 성분들의 손상이 일어난다. 결국에는 탄력감소, 주름살 및 기미, 주근깨 등으로 특징 지워지는 피부노화가 가속화된다. 따라서 필요한 항상화제를 함유한 식품이나 화장품을 통한 계속적인 항산화제 보충으로 피부 항산화 방어망을 견고히 할 때 피부노화는 지연되고 억제될 것이다.주거를 구분하고 있는 것으로 조사되었으나, 아직까지 절반 가량(52.2%)의 상점들이 다른 사람 소유의 건물을 전 ·월세로 임대하여 사용하고 있음을 알 수 있었다. 이상에서 살펴본 바와 같이 고수동굴 주변의 상업적 특성은 90년대에 들어서면서 자기 고장에 있는 관광자원을 내 고향의 자랑거리로 생각하고 이를 지역발전의 밑거름으로 활용하고자 하는 인식이 늘어나고 있음을 알 수 있었다. 그러나, 관광지로서의 특성이라 할 수 있는 다른 관광동굴과의 차별성이 부족하다고 할 수 있다. 즉 다른 지역의 기념품점에서 구입할 수 없는 고수동굴만이 갖고 있는 특징적인 기념품을 판매함으로써 관광객의 구매욕구를 높인다거나 고수동굴의 일주관광 후 관광객을 좀 더 머무르게 할 수 있는 시설의 개발이 더 필요하다.유의한 차이를 나타내는 항목이 많았으며 12주에서 vehicle과 유의적인 차이를 나타내는 항목도 많으므로 3-APPA가 APSA 보다 광범위한 피부노화 억제 효과를 갖는 물질이라고 할 수 있다.주도적 역할을 수행해야 할 것이다. 넷째, 선박금융제도의 개선과 신금융상품의 개발이 요구된다. 내수 수요인 계획조선의 지원조건을 개선하고 연불수출자금을 BBC자금으로 활용토록하여 국내 선주들의 신조를 유도해야 할 것이다. 그 외에 향후 금융개방화에 맞추어 해외자금을 활용한 리스금융, 상사금융 등의 민간신용제도를 더욱 활성화하고 선진국의 선박금융기법에 대한 연구 및 도입 등 선주들에게 다양한 선박건조자금을 제공하여 내수기반 확충에도 노력해야 할 것 이다.있었다., 인삼이 성장될 때 부분적인 영양상태의 불충분이나 기후 등에 따른 영향을 받을 수 있기 때문에 앞으로 이에 대한 많은 연구가

• Korean Journal of Microbiology
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• v.52 no.2
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• pp.236-241
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• 2016

The Schizosaccharomyces pombe $sdu1^+$ gene, belonging to the PPPDE superfamily of deubiquitinating enzyme (DUB) genes, was previously shown to encode a protein with ubiquitin C-terminal hydrolase (UCH) activity and to participate in the response against oxidative and nitrosative stresses. This work focused on the reactive oxygen species (ROS)-dependent regulation of the S. pombe $sdu1^+$ gene. UCH activities, encoded by the $sdu1^+$ gene, were attenuated in the S. pombe cells exposed to $H_2O_2$, superoxide radical-generating menadione (MD), and nitric oxide (NO)-generating sodium nitroprusside (SNP). Reduced glutathione (GSH) and its precursor N-acetylcysteine (NAC) were able to significantly enhance the UCH activities in the absence or presence of $H_2O_2$. However, the influences of both GSH and NAC on the ROS levels in the absence or presence of $H_2O_2$ were opposite to their effects on the UCH activities under the same conditions. The UCH activities in the Sdu1-overexpressing S. pombe cells were also diminished under exposure to $H_2O_2$, MD and SNP, but still remained to be higher than those in the vector control cells. In brief, it is proposed that the S. pombe $sdu1^+$ gene is regulated by ROS in a negative manner, the meaning of which largely remains elusive.

• Korean Journal of Family Social Work
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• no.61
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• pp.93-136
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• 2018

The purpose of this study is to find specific practice methods of single parents self-help groups in community welfare centers. A participatory action research was conducted to achieve the purpose. Six social workers and three researchers participated in the study who shared the problem of lack of specific practice methods even though a self-help group was useful for self-reliance and empowerment of low-income single-parents. Various activities such as reading articles, analysis of each self-help group, case studies, and learning facilitation methods were conducted during 10 meetings. At the same time, peer supervision proceeded at each meeting. The progress of each group was shared, the application of practice methods and plans were discussed, and applying discussed methods to group practice and reviewing the process and outcomes of the practice were repeated in the peer supervison. As a result, the following positive changes appeared: First, the goals and vision of each group became clearer. Second, initiative of the members was promoted. Third, intimacy, mutual cooperation, the attatchment to the group were strengthened. A qualitative analysis was also conducted on the content discussed. As a result, 17 practice methods were derived in four themes such as initiative/ empowerment, cohesion, leadership, and destandardization. Practice issues concerning single parents self-help groups in community welfare centers were discussed based on the results.

• Cross-Cultural Studies
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• v.47
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• pp.163-190
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• 2017

This paper studies the recent surge in the number of faith-based films in Hollywood, with the aim to explore the context and implications of this new trend. By using the theoretical framework of the study of the Tilich and Van der Leeuw, who have explored the relationship between religion, culture and art, this article discusses the meaning of the spiritual theme in the film. A couple of common points can be found among the faith-based films that have been produced since the 2010s. While these films attempt a universal approach to the fundamental theme of spirituality through popular narratives familiar to the audience, they also stress 'historical truthfulness and credibility' by representing the reality, such as a featuring real person or a true story in the film. The main characters are depicted as "victorious losers" that are distinguished from the typical Hollywood superhero and the films repeatedly show the human being constantly 'asking' questions to God. By analyzing these characteristics, the paper demonstrates that recent Hollywood faith-based films have successfully differentiated themselves from existing religious films while symbolizing the universal beliefs and values beyond the religious message so as to attract more audiences to this field. The paper also suggests that despite the advances in modern science and knowledge, the public will always yearn for a spiritual recovery and salvation through the film medium, serving as a potential source that provides an outlet for spiritual experience.

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.28 no.2
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• pp.97-104
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• 2022

This study investigated the characteristics for the optimal concentration of addition of the mixing solution through the corn husk pulverization and surface modification of biomass byproducts adding mixed solution between ESO and silane. And surveyed the specific surface area, water absorption, particle size and physical properties of bio- degradable plastic sheet. The specific surface area was 1.105 m²/g, particle size was the highest at 19 ㎛. The impact strength, tensile strength, elongation and hardness of plastic sheet showed the highest at the 1% concentration among the mixing solutions. The flexural strength and modulus was high according to the increasing the mixing solution. The results above showed that it was the best the adding 1% of mixed solution after silane treatment of corn husks for its manufacture as a bio-based plastic sheet.