• 한국방사선학회논문지
• /
• 제9권5호
• /
• pp.315-322
• /
• 2015

본 논문의 목적은 당뇨병 및 신경병증의 병력이 없는 17명의 일반 성인을 대상으로 한 정량적 감각검사(QST)와 광용적맥파(PPG)와의 비교를 통해 정량적 감각검사의 임상적 유용성을 파악하는 것이며, 광용적맥파 검사를 이용한 혈당수치에 따른 자율신경계의 부교감신경의 변화를 살펴보는 것이다. 일반인을 대상으로 혈당검사와 광용적맥파 검사를 실시하여 상관관계를 분석한 결과 혈당수치에 따라 자율신경계 부교감신경이 느려지는 상관관계를 보였다. 이상의 결과에서 정량적 감각 검사가 주관적 평가에 의한 검사이기는 하나 검사의 민감도를 신뢰할 수 있다고 보이며 따라서 말초 신경의 평가도구로서 정량적 감각검사가 당뇨병성 신경병증 등의 진단의 민감도를 높이는데 폭넓게 이용될 수 있을 것으로 보이며, 광용적맥파 검사가 심박변화율에 의한 자율신경계를 평가하는 후속연구에 기초자료연구로 이용될 수 있을 것으로 사료된다.

• 한국항만경제학회지
• /
• 제33권1호
• /
• pp.61-74
• /
• 2017

본 연구는 부산항 국제 선용품 공급업의 경쟁력을 도모하기 위한 일환으로서 정보화 역량을 분석하는 것을 목적으로 한다. 구체적으로는 최근 추진되고 있는 선용품 공급업체의 종합정보관리시스템의 성공적인 도입과 정착을 위한 선결과제로서 정보화 역량을 분석하고자 한다. 이러한 과정을 통해 종합정보관리시스템을 수용하고 활용하는데 필요한 당사자들의 정보화 역량을 실증적으로 파악하여 종합정보시스템 구축과 더불어 추진되어야 할 몇 가지 과제를 제안하고자 한다. 연구의 목적을 달성하기 위해, 국가직무능력표준을 바탕으로 평가기준을 수립하였으며, 중요도-수행도 분석(Importance-Performance Analysis)기법을 활용하였다. 실제 기업을 대상으로 조사 자료를 수집하여 분석한 결과, 정보화 역량이 전반적으로 취약한 것으로 나타났다. 특히, 정보처리능력이 다른 영역에 비해 매우 취약하다는 점을 발견할 수 있었다. 따라서, 종합정보관리시스템의 성공적인 도입을 위해서는 정보화 재교육 프로그램과 전담 지원조직을 구성하는 것이 필요할 것으로 사료된다.

• Journal of Korean Neurosurgical Society
• /
• 제53권5호
• /
• pp.269-273
• /
• 2013

Objective : Posture induced common peroneal nerve (CPN) palsy is usually produced during the prolonged squatting or habitual leg crossing while seated, especially in Asian culture and is manifested by the onset of foot drop. Because of its similarity to discogenic foot drop, patients may be diagnosed with a lumbar disc disorder, and in some patients, surgeons may perform unnecessary examinations and even spine surgery. The purpose of our study is to establish the clinical characteristics and diagnostic assessment of posture induced CPN palsy. Methods : From June 2008 to June 2012, a retrospective study was performed on 26 patients diagnosed with peroneal nerve palsy in neurophysiologic study among patients experiencing foot drop after maintaining a certain posture for a long time. Results : The inducing postures were squatting (14 patients), sitting cross-legged (6 patients), lying down (4 patients), walking and driving. The mean prolonged neural injury time was 124.2 minutes. The most common clinical presentation was foot drop and the most affected sensory area was dorsum of the foot with tingling sensation (14 patients), numbness (8 patients), and burning sensation (4 patients). The clinical improvement began after a mean 6 weeks, which is not related to neural injury times. Electrophysiology evaluation was performed after 2 weeks later and showed delayed CPN nerve conduction study (NCS) in 24 patients and deep peroneal nerve in 2 patients. Conclusion : We suggest that an awareness of these clinical characteristics and diagnostic assessment methods may help clinicians make a diagnosis of posture induced CPN palsy and preclude unnecessary studies or inappropriate treatment in foot drop patients.

• 복식문화연구
• /
• 제25권4호
• /
• pp.509-518
• /
• 2017

As the international competitive landscape deepens, the need to understand foreign cultures and establish effective strategies is increasing. At the beginning of the 20th century, Cartier actively developed exotic designs to secure international competitiveness; theses designs have also been used as design prototypes for Cartier in modern times. The purpose of this study is to analyze the color characteristics and types of exotic designs in the early 20th century, which was a turning point in Cartier's design. After studying the literature, a total of 248 exotic designs were presented in Cartier catalogs. This study also selected overseas monographs from the early 20th century, and their design types were classified and color analysis was performed based on the Natural Color System(NCS). Cartier's exotic designs cover wide range of styles, such as Chinese, Japanese, Persian, Indian and Egyptian styles. Multicolor, primary colors, and contrast are all strongly expressed. 97% of designs contained multiple colors, with at least two colors and maximum of six colors. The most frequently used colors are red, green, and blue, which means that only 9% of the designs do not contain the three colors, showing a high preference for theses three colors. In addition, color combinations of red and green, red and blue, or all three colors are used to show high contrast and utilize complementary colors, or near complementary colors, for coloration. This study is meaningful in that it analyzes the color characteristics of Cartier's exotic designs and translates them into practical data for establishing the color strategies of companies in the global market.

• 한국정보통신학회논문지
• /
• 제19권10호
• /
• pp.2457-2464
• /
• 2015

무선 네트워크를 통한 네트워크 제어 시스템 (NCS: Networked Control Systems)은 다양한 제어 시스템의 효율성을 극대화 할 수 있는 잠재력을 가지고 있다. 본 연구에서는 네트워크 제어 시스템으로부터 이끌어낸 상태갱신주기(SUI: State Update Interval)라는 성능 메트릭을 정의한다. 제시된 상태갱신주기는 제어와 통신 시스템 계층 사이의 핵심적인 상호작용을 포함하고 있다. 제시된 성능 메트릭은 NCS를 위한 최적화 문제를 도출하는데 사용이 되었으며, 이러한 최적화 문제의 목적 함수는 상태갱신주기의 제한 요소를 만족하는 확률이며 변수는 매체접근 확률로 표현되었다. 본 연구에서는 제시된 최적화 문제의 최적 매체접근 확률이 유일한 해를 가진다는 것을 증명하였다. 또한 NCS를 위한 최적의 매체접근 확률은 전송률을 극대화하는 기존의 매체접근 확률보다 낮다는 결론을 도출하였다. 성능 분석 결과를 통하여 시스템의 안정도가 상태갱신주기를 고려한 최적의 매체접근 확률을 사용하였을 때가 전송률을 최대화하는 매체접근 확률을 사용 했을 때 보다 높다는 점을 보였다.

• Asian Journal of Atmospheric Environment
• /
• 제11권1호
• /
• pp.15-28
• /
• 2017

The adsorptive removal properties of synthetic A4 zeolite were investigated against a total of 16 offensive odors consisting of reduced sulfur compounds (RSCs), nitrogenous compounds (NCs), volatile fatty acids (VFAs), and phenols/indoles (PnI). Removal of these odors was measured using a laboratory-scale impinger-based adsorption setup containing 25 g of the zeolite bed (flow rate of $100mL\;min^{-1}$). The high est and lowest breakthrough (%) values were shown for PnIs and RSCs, respectively, and the maximum and minimum adsorption capacity (${\mu}g\;g^{-1}$) of the zeolite was observed for the RSCs (range of 0.77-3.4) and PnIs (0.06-0.104), respectively. As a result of sorptive removal by zeolite, a reduction in odor strength, measured as odor intensity (OI), was recorded from the minimum of approximately 0.7 OI units (indole [from 2.4 to 1.6]), skatole [2.2 to 1.4], and p-cresol [5.1 to 4.4]) to the maximum of approximately 4 OI units (methanethiol [11.4 to 7.5], n-valeric acid [10.4 to 6.5], i-butyric acid [7.9 to 4.4], and propionic acid [7.2 to 3.7]). Likewise, when removal was examined in terms of odor activity value (OAV), the extent of reduction was significant (i.e., 1000-fold) in the increasing order of amy acetate, i-butyric acid, phenol, propionic acid, and ammonia.

• 패션비즈니스
• /
• 제17권6호
• /
• pp.98-110
• /
• 2013

This research is to study the functional color arrangement of work clothes based on the color chroma value arrangement, which could affect the safety of workers at the site of the mechanical industry. For the study, 5PB hue, indicating a high satisfaction level with proper colors at the site of the mechanical industry, were selected from previous research for 6 types of CAD simulation on a 2-color chroma value arrangement. To analyze the color data of each color arrangement after applying the color chroma value arrangement as well as to figure out the level of recognition on the color arrangement, an analytical result, which was based on the NCS color system, was evaluated. Furthermore, the survey study on items regarding the safety of the relevant work site for the simulated result was executed. As a result of the evaluation, the color arrangements which include high color chroma value indicated a high satisfactory level in all items under the visibility criteria for the safety of workers, propriety as a color arrangement of work clothes, and safety from the perspective of work site management. In particular, the color arrangement mixture between high color chroma obtained the highest satisfactory evaluation, indicating that the color arrangement of high color chroma is essential in the color arrangement of work clothes for the establishment of safety by adjusting the color chroma value. Yet, in order to figure out the independent function of the color chroma value, other factors are restricted in this study. Thus, it is not proper to apply the result of this study only at the actual work site. Therefore, a follow-up research centered on the tones of all three types is proposed, from which we can expect, a suggestion of the applicable color guideline for the industrial site.

• Bulletin of the Korean Chemical Society
• /
• 제30권10호
• /
• pp.2329-2337
• /
• 2009

Three heteroleptic ruthenium sensitizers, Ru(L)($L^1)(NCS)_2$ [L = 4,4'-dicarboxylic acid-2,2'-bipyridine, Ru-T1: $L^1$ = (E)-2-(4'-methyl-2,2'-bipyridin-4-yl)-3-(thiophen-2-yl)acrylonitrile, Ru-T2: $L^2$ = (E)-3-(5'-hexyl-2,2'-bithiophen-5- yl)-2-(4'-methyl-2,2'-bipyridin-4-yl)acrylonitrile, and Ru-T3: $L^3$ = (E)-3-(5"-hexyl-2,2':5',2"-terthiophen-5-yl)-2- (4'-methyl-2,2'-bipyridin-4-yl)acrylonitrile)], were synthesized and used as photosensitizers in nanocrystalline dyesensitized solar cells (DSSCs). The introduction of the 3-(5-hexyloligothiophen-5-yl)acrylonitrile group increased the conjugation length of the bipyridine donor ligand and thus improved their molar absorption coefficient and light harvesting efficiency. DSSCs with the configuration of Sn$O_2$: F/Ti$O_2$/ruthenium dye/liquid electrolyte/Pt devices were fabricated using these Ru-$T1{\sim}T3$ as a photosensitizers. Among the devices, the DSSCs composed of Ru-T2 exhibited highest power conversion efficiency (PCE) of 2.84% under AM 1.5 G illumination (100 mW/$cm^2$).

• 한국의상디자인학회지
• /
• 제19권3호
• /
• pp.33-47
• /
• 2017

The purpose of this study is to provide fundamental data for the development of new course on 3D printing in the fashion design department. In order to investigate the perception of and educational needs in 3D printing, the data were collected from 266 students (female 68.8%, male 31.2%) majoring in fashion design aged 18-25 living in the capital area. The results of this survey showed that when investigating perceptions of 3D printing, it was found that 68.8% of answerers had indeed heard of 3D printing. Regarding the path they came to know about 3D printing, mass media such TV was the most frequent answer (54.6%). On the other hand, to the question asking about their intention to take the subject if given, approximately 71% said "Yes". Also, if a modeling class were given, the division that they wanted to explore most in the fashion industry was fashion jewelry. Finally, to the question asking interest in starting a business, 71.1% answered that they had interest. Out of those that answered that they had interest, when questioned about in which field they wanted to start a business, the most frequent answer was fashion online shopping mall. Finally, NCS-based 3D printing courses were suggested in the Fashion Design area. As 3D printing techniques are actively applied to the fashion industry overseas, creative education is needed through the integration of fashion and 3D printing technology by introducing 3D printing related programs in colleges.

• 복식
• /
• 제65권2호
• /
• pp.125-143
• /
• 2015

This study is to propose an 'education-training-certificate of qualification' design of fashion accessories production, which can be applied to education in universities and individuals. It is based on the National Competency Standards (NCS), which was developed through the '2013 National Competency Standards Development Project' for the fashion accessories production. FGI (Focus Group Interviews), which is a research methodology, is carried out on target groups of educational experts and specialists in the field of fashion accessories production. Through this, five courses were suggested; first, 'fashion accessories design' course was proposed for the education and training of 'design development' and 'development of raw materials'. Secondly, 'fashion product production' course was proposed for the education and training of 'production of samples'. Thirdly, 'fashion product manufacture and planning' course was proposed for the competency element units: 'calculation of cost', 'determination of mass production model and price', 'planning of the main manufacturing process' and 'ordering of raw materials'. Lastly, 'mass production of fashion products' course and the 'field practice of fashion product manufacture' course were proposed for the competency element units: 'planning for mass production', 'preparation for mass production', 'mass production' and 'inspection of completed products'. In addition, a new certificate of 'technician of fashion accessory production' was proposed in order to test qualified skills for the fashion accessories production. The test is composed of a written examination of short-answer questions, technical drawing and production.