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Mobile PDA를 위한 위치기반 Web Map Service 설계 및 구현
김명삼,최영길,정영지 원광대학교 2004 論文集 Vol.33 No.-
최근 무선 인터넷의 발전으로 이동환경에서 위치정보를 활용한 사용자 선호 기반의 정보 및 부가서비스가 많은 호응을 얻고 있다. 사용자의 위치에 따른 지도나 POI(Point of Interest) 정보의 제공은 이러한 서비스의 기본이라 할 수 있다. 그러나 모바일 환경에서는 특정지역이나 시스템에서 한정적인 서비스만을 제공하고 있으며 일부 CNS(Car Navigation System)에서는 이러한 정보가 메모리형태의 저장소에 포함되어 서비스되고 있지만 단말기 독립형 서비스이므로 정보의 동적 업데이트나 실시간 정보를 적용하기 힘들다. 본 연구에서는 XML 웹서비스를 이용하여 이동클라이언트인 PDA에서 실시간 위치정보를 적용한 벡터기반의 SVG지도 및 POI 서비스가 가능한 클라이언트/서버 시스템을 설계하고 구현하였다.
최재영,김선미,정영지 원광대학교 2004 論文集 Vol.33 No.-
위치기반 서비스의 기초적인 부분이며 필수적인 부분이 바로 사용자가 자신의 위치에 대한 인지를 명확하게 할 수 있도록 위치를 표시하고 보여주기 위한 지도 데이터 서비스이다. 지도 데이터 서비스를 위해서는 지리정보를 특정 어플리케이션에 의존함이 없이 즉시 볼 수 있는 형태의 포맷으로 변환하는 것이 필요하다. 이를 충족시킬 수 있는 포맷으로 웹브라우저 상에서 바로 볼 수 있는 SVG를 고려할 수 있다. 본 논문에서는 GIS Vector Map의 대표적인 파일 형식인 DXF, SHP, MIF를 분석하였다. 또한, 이들 파일 형식을 공통된 하나의 파일형식인 XML로 변환하여 DB를 구축하고, 구축된 XML 데이터를 SVG로 변환하는 엔진을 구현하였으며 이를 통하여 여 98%이상의 변환 효율을 갖는 결과를 얻을 수 있었다.
回轉反應爐에 있어서 톱밥의 熱分解를 위한 流動特性의 硏究
李輔成,金志同,金惠榮 충남대학교 공업교육연구소 1982 論文集 Vol.5 No.2
This paper is a study of the fundamental design and operation preblems in Rotary Kilns for Biomass- pyrolysis. It is concerned especially with the flow pattern and mixing degree of solid reactants in Rotary Kilns. It was cleared that the mean residence time of solids was independent on the feed rate and the highest mixing degree could be obtained at 120 rpm. With a modified temperature profile in the Kiln and through pyrolysis of saw dust a gas mixture could be produced which has a calorific value of 3500 kcal/㎥ calculated.
Kim, Ju Eun,Shrestha, Abinash Chandra,Kim, Hyo Shin,Ham, Ha Neul,Kim, Jun Hyeong,Kim, Yeong Jee,Noh, Yun Jeong,Kim, Su Jin,Kim, Dae Keun,Jo, Hyung Kwon,Kim, Dae Sung,Moon, Kwang Hyun,Lee, Jeong Ho,Jeo Hindawi 2019 Evidence-based Complementary and Alternative Medic Vol.2019 No.-
<P>Alzheimer's disease (AD) is linked to an extensive neuron loss via accumulation of amyloid-beta (A<I>β</I>) as senile plaques associated with reactive astrocytes and microglial activation in the brain. The objective of this study was to assess the therapeutic effect of WS-5 ethanol extract in vitro and in vivo against A<I>β</I>-induced AD in mice and to identify the extract's active constituents. In the present study, WS-5 exerted a significant inhibitory effect on acetylcholinesterase (AChE). Analysis by transmission electron microscopy (TEM) revealed that WS-5 prevented A<I>β</I> oligomerization via inhibition of A<I>β</I><SUB>1-42</SUB> aggregation. Evaluation of antioxidant activities using 1, 1-diphenyl-2-picrylhydrazyl (DPPH) demonstrated that WS-5 possessed a high antioxidant activity, which was confirmed by measuring the total antioxidant status (TAS). Furthermore, the anti-inflammatory properties of WS-5 were examined using lipopolysaccharide-stimulated BV-2 microglial cells. WS-5 significantly inhibited the lipopolysaccharide–induced production of nitric oxide and two proinflammatory cytokines, TNF-<I>α</I> and IL-6. The memory impairment in mice with A<I>β</I>-induced AD was studied using the Morris water maze and passive avoidance test. Immunohistochemistry was performed to monitor pathological changes in the hippocampus and cortex region of the mouse brain. The animal study showed that WS-5 (250 mg/kg) treatment improved learning and suppressed memory impairment as well as reduced A<I>β</I> plaque accumulation in A<I>β</I>-induced AD. HPLC analysis identified the extract's active compounds that exert anti-AChE activity. In summary, our findings suggest that WS-5 could be applied as a natural product therapy with a focus on neuroinflammation-related neurodegenerative disorders.</P>
Hypersensitivity Reactions to Oxaliplatin: Clinical Features and Risk Factors in Koreans
Kim, Mi-Yeong,Kang, Sung-Yoon,Lee, Suh-Young,Yang, Min-Suk,Kim, Min-Hye,Song, Woo-Jung,Kim, Sae-Hoon,Kim, Yo-Jung,Lee, Keun-Wook,Cho, Sang-Heon,Min, Kyung-Up,Lee, Jong-Seok,Kim, Jee-Hyun,Chang, Yoon-S Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.4
Background and Aim: Oxaliplatin hypersensitivity is a well-known adverse reaction but the prevalence varies and data for frequency and clinical features have not been reported for Korea. Here we evaluates the prevalence and risk factors for hypersensitivity reactions to oxaliplatin after chemotherapy. Methods: Clinical information on all patients treated with oxaliplatin was retrospectively reviewed in electronic medical records between August 2009 and July 2010 in Seoul National University Bundang Hospital. Patients who experienced hypersensitivity reactions to oxaliplatin were compared with those who did not. Results: A total of 393 patients received oxaliplatin, with 42 (10.7%) experiencing hypersensitivity reactions including three cases of anaphylaxis. Median cycle of the first hypersensitivity reaction was 8. Reactions correlated with lower dexamethasone doses. Other variables were not significant. Conclusions: The prevalence of hypersensitivity reactions was 10.7%, symptoms being mostly mild and cutaneous. Lower dexamethasone doses could be a predictor for hypersensitivity reactions to oxaliplatin.
Kim, Ju Yeong,Yi, Gwang,Kim, Yeo Rang,Chung, Jae Yeon,Ahn, Ji Hyun,Uhm, You Kyoung,Jee, Byung Chul,Suh, Chang Suk,Kim, Seok Hyun The Korean Society for Reproductive Medicine 2013 Clinical and Experimental Reproductive Medicine Vol.40 No.2
Objective: To evaluate the correlation between serum levels of anti-M$\ddot{u}$llerian hormone (AMH) and ovarian response to mild stimulation in normoovulatory women and anovulatory women with polycystic ovary syndrome (PCOS). Methods: Seventy-four cycles of mild stimulation (clomiphene citrate+gonadotropin followed by timed intercourse or intrauterine insemination) performed in normoovulatory women (57 cycles) and anovulatory women with PCOS (17 cycles). Ovarian sensitivity was defined by the number of mature follicles (${\geq}14mm$) on triggering day per 100 IU of gonadotropin. A correlation between ovarian sensitivity and the baseline serum AMH level (absolute or multiples of the median [MoM] value for each corresponding age) was calculated. Correlation between ovarian response and serum AMH level was evaluated. Results: Ovarian sensitivity to mild stimulation was positively correlated with absolute serum AMH (r=0.535, p<0.001) or AMH-MoM value (r=0.390, p=0.003) in normoovulatory women, but this correlation was not observed in anovulatory women with PCOS (r=0.105, p>0.05, r=-0.265, p>0.05, respectively). Conclusion: Ovarian response to mild stimulation is possibly predicted by the serum AMH level in normoovulatory women, but not in anovulatory women with PCOS.
Serum lipid profile and the risk of Behcet’s disease: A nationwide population-based study in Korea
( Yeong Ho Kim ),( Hyun Jee Kim ),( Hwa Jung Yook ),( Joon Ho Son ),( Kyung Do Han ),( Yong Gyu Park ),( Young Bok Lee ),( Ji Hyun Lee ) 대한피부과학회 2020 대한피부과학회 학술발표대회집 Vol.72 No.1
Background: Behçet’s disease (BD) is a chronic inflammatory vascular disease affecting multiorgan system. Some studies reported higher prevalence of dyslipidemia in BD patients. However, there had been lack of comprehensive studies with regard to the association between lipid profile composition and BD in a large population. Objectives: To determine the association of BD with serum lipid profiles. Methods: A nationwide population-based study was performed using claims data from the Korean National Healthcare Insurance service. A total of 9,914,049 subjects were enrolled. Individuals who developed BD were identified during follow-up. Adjusted hazard ratio (aHR) by age, sex, body mass index, cigarette smoking, alcohol drinking, exercise, income and underlying comorbidities was calculated to define the impact of serum lipid profiles on developing BD. Results: During a median follow-up of 7.3 years, BD was detected in 2,681 (0.027%) individuals. Compared with the lowest quartile of serum TC levels, higher TC levels were associated with lower incidence of BD. Lower serum HDLC levels were associated with higher incidence of BD. Lower serum LDL-C levels were associated with higher incidence of BD. Moreover, lower serum TG levels were associated with higher incidence of BD. Conclusion: Low serum TC, HDL-C, LDL-C, and TG levels were associated with BD.