• 한국안전학회지
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• 제12권3호
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• pp.173-178
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• 1997

본질적인 난연 및 내열성의 PQXS, PIQS, PQS 3종류의 폴리머를 2,3-dichloroquinoxaline, 1,3-dichloroisoquinoline, 4,7-dichloroquinoline을 각각 출발 물질로 하여 합성하였다. 이들을 FT-IR, UV/Vis 분광분석, DTA, 원소분석 등에 따라 특성분석을 행하였다. 이들 폴리머소재는 내열 및 난연특성 시험에서 녹는점 기준 $350^{\circ}C$ 이상의 높은 내열성과 LOI값 기준으로 41~42의 높은 수치의 난연특성을 나타내었으며 또한 수직연소시험에서 UL 94 V-0 등급의 높은 난연특성을 나타내었다.

• Asian Pacific Journal of Cancer Prevention
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• 제17권2호
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• pp.755-758
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• 2016

Background: There is little information about the objectivity of posttraumatic growth experienced by cancer patients. So, the aim of present study was to investigate the viewpoints of family caregivers regarding posttraumatic growth in cancer patients. Materials and Methods: This descriptive study was conducted in one referral medical center in East Azerbaijan Province in northwest of Iran. 120 primary family caregivers of cancer patients participated with a convenience sampling method. The Posttraumatic Growth Inventory (PTGI) and Perception about Prognosis Scale (PPS) were applied for data collection with analysis performed using SPSS statistical software. Results: Family caregivers believed that their patients had a good prognosis (score 3.95 from 5). The total score of PTGI was 60.7 (SD=18.8) that indicates a moderate level of growth as reported by family caregivers. Conclusions: Family caregivers of cancer patients have incorrect viewpoints about the prognosis of their patients and reported moderate levels of growth. These findings showed that posttraumatic growth among cancer patients is an objective phenomenon.

• 인지과학
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• 제10권1호
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• pp.45-55
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• 1999

본 논문은 사건/사타에 대한 공간적 인지가 수행되는 기본적인 방식을 규명하기 위해서는 그 사건/사태에 참여하는 참가자의 위치가 가장 주요한 요인임을 주장하고, 자연언어는 공간적 인지를 표현하기 위해 비교적 "단순한" 의미유형을 사용하고 있으며, 공간표현을 해석할 때 사건/사태 전체의 위치를 지정하는 것으로 해석하지 않고, 그 참가자로 표현된 논항(arguments)의 위치를 지정하는 것으로 해석한다는 것이다. 본 논문은 장소표현이 타동사의 두 논항의 위치를 지정하는 방식을 네 가지 유형의 노항지향성(argument orientations)으로 분류하여 기술하였고, 논항지향성을 통하여 영어를 포함한 자연언어의 장소표현이 관계(relations)의 집합에서 관계의 집합으로 사상하는 교차함수(intersecting functioins)로 해석되어야 한다는 의미해석상의 제약이 있음을 밝히고 있다.

• 한국콘텐츠학회논문지
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• 제16권5호
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• pp.137-147
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• 2016

온라인 동영상 플랫폼은 유튜브나 넷플릭스 등 다양한 콘텐츠를 수집하여 무료 또는 저렴한 가격으로 소비자에게 전달하는 서비스를 제공한다. 국내 온라인 동영상 플랫폼의 더딘 성장세와 달리, 중국은 세계적인 수준으로 그 시장규모와 이용자수가 빠른 속도로 증가하고 있다. 본 연구는 중국 콘텐츠산업 내 온라인 동영상 시장의 성장에 주목하는 한편, 그 원인을 중국 특유의 외부환경과 플랫폼의 비즈니스 모델에 두고자 한다. 중국 온라인 동영상 플랫폼의 발전과정과 현황을 살펴본 후 유쿠투도우와 아이치이PPS의 비즈니스 모델을 분석하여 중국 온라인 동영상 시장의 발전 원인을 찾아본다.

• 한국펄프종이공학회:학술대회논문집
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• 한국펄프종이공학회 2011년도 춘계학술발표회 논문집
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• pp.327-338
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• 2011

This study was carried in order to manufacture the high quality coated paper. High quality includes not only properties of coated paper but also final print quality. In this study, new acrylic-styrene emulsion was polymerized in laboratory and compared with styrene-butadiene latex. Low-shear viscosity of coating color was decreased with increasing acrylic-emulsion dosage. WRV was increased with addition and decreased with substitution of acrylic-emulsion. Paper gloss, brightness and whiteness were increased and PPS and opacity was slightly decreased with acrylic-emulsion. Ink gloss was increased with using No. 3 acrylic-emulsion due to lower ink setting properties. However No.1, 2 emulsion shows opposite situation. Surface strength of coated paper was increased with using No. 3 acrylic-emulsion These results indicate that high quality coated paper can be manufactured with using No. 3 acrylic-emulsion.

• 대한임상전기생리학회지
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• 제9권1호
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• pp.1-8
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• 2011

Purpose : This study investigated the effects of osteoarthritis therapy using images and histological diagnosis after microcurrents were applied to osteoarthritic rats. Methods : Osteoarthritis was induced with a mixture of 2% carrageenan and 2% kaolin. The mixture (0.1 $m{\ell}$) was injected into the knee joints of rats. Osteoarthritis with articulation received microcurrent stimulation for four weeks (15 min/day, 5 days/week): treated with pulsation frequency of 5 pps and a stimulation intensity of 25 ${\mu}A$. Results : Osteoarthritis of the control group constantly changed. The group with a stimulation intensity of 25 ${\mu}A$ applied to the surface of the articular cartilage experienced near normal recovery according to image diagnosis. The result of histological and immunohistochemistry inspection confirms that microcurrent stimulation had a positive effect on the treatment of osteoarthritis. Conclusion : The differences among images and histological diagnoses show that steoarthritis will experience constant progression from stimulation.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1999년도 하계학술대회 논문집 F
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• pp.2597-2600
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• 1999

Semiconductor devices can be series stacked for the application of high voltage switching. It can provide high reliability and long lifetime by the safe design with a reasonable margin. The equal voltage distribution at solid-state switches in series should be guaranteed. Static and dynamic voltage division, over current protection must be considered carefully in the design stage. A fast switching thyristor is a good candidate for the high power pulse applications. A high voltage switching module is designed and tested. Its specifications are working voltage of 70 kV, switching pulse width of 120${\mu}s$, peak switching current of 220A, maximum repetition rate of 200pps. The module can be series connected to get higher working voltage. This paper presents the design details and the test results are compared with expected circuit simulations.

• Journal of Positioning, Navigation, and Timing
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• 제4권1호
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• pp.25-31
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• 2015

In this paper, we described the timing-offset comparison results between various daily jump compensation methods for GPS carrier phase (CP) measurement data. For the performance comparison, we used about 70 days GPS measurement data obtained from two GPS geodetic receivers which share the reference 1 PPS and RF signals and closely located in each other within a few meters. From the experiment results, the followings were observed. First, daily jumps existed in CP measurements depend on not only the environment but also the receiver which will make a full compensation be very hard or impossible. Second, clock bias can be occurred in the case of using a simple compensation with accumulation of daily jumps but it could be used in a short-period frequency comparison campaign (less than about 7 days) despite of its drawback.

• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2012년도 춘계학술발표대회 논문집
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• pp.331-336
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• 2012

Nowaday the conventional solar collector material prices are rising up because of pricy metal material over the world. The solar collector is too expensive to recycle to save the earth. Advanced polymer research is founded a high thermal resistant polymer and also it has high sun energy transmission. It also has cheaper material and easy manufacturing process, compare with conventional solar collector material. This paper is focussing on glazing simulation of polymer solar collector against wind pressure. The modeling geometry of polymer solar glazing are purposed by single layer, double layer hollow, zig-zag and tower. A simulation by using the Finite Volume was conducted to get Factor of Safety (FoS). The purpose of this paper is to find the best polymer glazing design, which can be as reference for the solar collector company to build Polymer. Hope fully new model of polymer solar collector has cheap, light, high sun energy transmitter, easy to be made and strong against wind force characteristics.

• 한국전문물리치료학회지
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• 제6권3호
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• pp.1-10
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• 1999

The purpose of this study was to determine whether high voltage pulsed current stimulation (HVPCS) would enhance wound healing in neuropathic rabbits. Ten rabbits were assigned to either an experimental or a control group. The wounded part around the peripheral neuropathy of the experimental rabbits was stimulated for two hours twice a day for six days under the following conditions: pulse frequency 80 pps, pulse duration $100{\mu}s$, and stimulation intensity 30~40 V. The results indicated that there was no difference in the wound closure between the experimental and control groups. The two groups showed similar aspects in collagen and reticulum, which were observed by colored Masson's trichome. While the rabbits in the control group had more or less thick fibers, the rabbits in the experimental group had thin and branched-shape fibers. The rabbits in the experimental group showed both strong responses in the shaping of elastic fibers and the increased aspects in fibroblast when compared with the control group.